`) spec.\n*/\nconst listItem = {\n parseDOM: [{ tag: \"li\" }],\n toDOM() { return liDOM; },\n defining: true\n};\nfunction add(obj, props) {\n let copy = {};\n for (let prop in obj)\n copy[prop] = obj[prop];\n for (let prop in props)\n copy[prop] = props[prop];\n return copy;\n}\n/**\nConvenience function for adding list-related node types to a map\nspecifying the nodes for a schema. Adds\n[`orderedList`](https://prosemirror.net/docs/ref/#schema-list.orderedList) as `\"ordered_list\"`,\n[`bulletList`](https://prosemirror.net/docs/ref/#schema-list.bulletList) as `\"bullet_list\"`, and\n[`listItem`](https://prosemirror.net/docs/ref/#schema-list.listItem) as `\"list_item\"`.\n\n`itemContent` determines the content expression for the list items.\nIf you want the commands defined in this module to apply to your\nlist structure, it should have a shape like `\"paragraph block*\"` or\n`\"paragraph (ordered_list | bullet_list)*\"`. `listGroup` can be\ngiven to assign a group name to the list node types, for example\n`\"block\"`.\n*/\nfunction addListNodes(nodes, itemContent, listGroup) {\n return nodes.append({\n ordered_list: add(orderedList, { content: \"list_item+\", group: listGroup }),\n bullet_list: add(bulletList, { content: \"list_item+\", group: listGroup }),\n list_item: add(listItem, { content: itemContent })\n });\n}\n/**\nReturns a command function that wraps the selection in a list with\nthe given type an attributes. If `dispatch` is null, only return a\nvalue to indicate whether this is possible, but don't actually\nperform the change.\n*/\nfunction wrapInList(listType, attrs = null) {\n return function (state, dispatch) {\n let { $from, $to } = state.selection;\n let range = $from.blockRange($to);\n if (!range)\n return false;\n let tr = dispatch ? state.tr : null;\n if (!wrapRangeInList(tr, range, listType, attrs))\n return false;\n if (dispatch)\n dispatch(tr.scrollIntoView());\n return true;\n };\n}\n/**\nTry to wrap the given node range in a list of the given type.\nReturn `true` when this is possible, `false` otherwise. When `tr`\nis non-null, the wrapping is added to that transaction. When it is\n`null`, the function only queries whether the wrapping is\npossible.\n*/\nfunction wrapRangeInList(tr, range, listType, attrs = null) {\n let doJoin = false, outerRange = range, doc = range.$from.doc;\n // This is at the top of an existing list item\n if (range.depth >= 2 && range.$from.node(range.depth - 1).type.compatibleContent(listType) && range.startIndex == 0) {\n // Don't do anything if this is the top of the list\n if (range.$from.index(range.depth - 1) == 0)\n return false;\n let $insert = doc.resolve(range.start - 2);\n outerRange = new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.NodeRange($insert, $insert, range.depth);\n if (range.endIndex < range.parent.childCount)\n range = new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.NodeRange(range.$from, doc.resolve(range.$to.end(range.depth)), range.depth);\n doJoin = true;\n }\n let wrap = (0,prosemirror_transform__WEBPACK_IMPORTED_MODULE_1__.findWrapping)(outerRange, listType, attrs, range);\n if (!wrap)\n return false;\n if (tr)\n doWrapInList(tr, range, wrap, doJoin, listType);\n return true;\n}\nfunction doWrapInList(tr, range, wrappers, joinBefore, listType) {\n let content = prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.empty;\n for (let i = wrappers.length - 1; i >= 0; i--)\n content = prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(wrappers[i].type.create(wrappers[i].attrs, content));\n tr.step(new prosemirror_transform__WEBPACK_IMPORTED_MODULE_1__.ReplaceAroundStep(range.start - (joinBefore ? 2 : 0), range.end, range.start, range.end, new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(content, 0, 0), wrappers.length, true));\n let found = 0;\n for (let i = 0; i < wrappers.length; i++)\n if (wrappers[i].type == listType)\n found = i + 1;\n let splitDepth = wrappers.length - found;\n let splitPos = range.start + wrappers.length - (joinBefore ? 2 : 0), parent = range.parent;\n for (let i = range.startIndex, e = range.endIndex, first = true; i < e; i++, first = false) {\n if (!first && (0,prosemirror_transform__WEBPACK_IMPORTED_MODULE_1__.canSplit)(tr.doc, splitPos, splitDepth)) {\n tr.split(splitPos, splitDepth);\n splitPos += 2 * splitDepth;\n }\n splitPos += parent.child(i).nodeSize;\n }\n return tr;\n}\n/**\nBuild a command that splits a non-empty textblock at the top level\nof a list item by also splitting that list item.\n*/\nfunction splitListItem(itemType, itemAttrs) {\n return function (state, dispatch) {\n let { $from, $to, node } = state.selection;\n if ((node && node.isBlock) || $from.depth < 2 || !$from.sameParent($to))\n return false;\n let grandParent = $from.node(-1);\n if (grandParent.type != itemType)\n return false;\n if ($from.parent.content.size == 0 && $from.node(-1).childCount == $from.indexAfter(-1)) {\n // In an empty block. If this is a nested list, the wrapping\n // list item should be split. Otherwise, bail out and let next\n // command handle lifting.\n if ($from.depth == 3 || $from.node(-3).type != itemType ||\n $from.index(-2) != $from.node(-2).childCount - 1)\n return false;\n if (dispatch) {\n let wrap = prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.empty;\n let depthBefore = $from.index(-1) ? 1 : $from.index(-2) ? 2 : 3;\n // Build a fragment containing empty versions of the structure\n // from the outer list item to the parent node of the cursor\n for (let d = $from.depth - depthBefore; d >= $from.depth - 3; d--)\n wrap = prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from($from.node(d).copy(wrap));\n let depthAfter = $from.indexAfter(-1) < $from.node(-2).childCount ? 1\n : $from.indexAfter(-2) < $from.node(-3).childCount ? 2 : 3;\n // Add a second list item with an empty default start node\n wrap = wrap.append(prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(itemType.createAndFill()));\n let start = $from.before($from.depth - (depthBefore - 1));\n let tr = state.tr.replace(start, $from.after(-depthAfter), new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(wrap, 4 - depthBefore, 0));\n let sel = -1;\n tr.doc.nodesBetween(start, tr.doc.content.size, (node, pos) => {\n if (sel > -1)\n return false;\n if (node.isTextblock && node.content.size == 0)\n sel = pos + 1;\n });\n if (sel > -1)\n tr.setSelection(prosemirror_state__WEBPACK_IMPORTED_MODULE_2__.Selection.near(tr.doc.resolve(sel)));\n dispatch(tr.scrollIntoView());\n }\n return true;\n }\n let nextType = $to.pos == $from.end() ? grandParent.contentMatchAt(0).defaultType : null;\n let tr = state.tr.delete($from.pos, $to.pos);\n let types = nextType ? [itemAttrs ? { type: itemType, attrs: itemAttrs } : null, { type: nextType }] : undefined;\n if (!(0,prosemirror_transform__WEBPACK_IMPORTED_MODULE_1__.canSplit)(tr.doc, $from.pos, 2, types))\n return false;\n if (dispatch)\n dispatch(tr.split($from.pos, 2, types).scrollIntoView());\n return true;\n };\n}\n/**\nActs like [`splitListItem`](https://prosemirror.net/docs/ref/#schema-list.splitListItem), but\nwithout resetting the set of active marks at the cursor.\n*/\nfunction splitListItemKeepMarks(itemType, itemAttrs) {\n let split = splitListItem(itemType, itemAttrs);\n return (state, dispatch) => {\n return split(state, dispatch && (tr => {\n let marks = state.storedMarks || (state.selection.$to.parentOffset && state.selection.$from.marks());\n if (marks)\n tr.ensureMarks(marks);\n dispatch(tr);\n }));\n };\n}\n/**\nCreate a command to lift the list item around the selection up into\na wrapping list.\n*/\nfunction liftListItem(itemType) {\n return function (state, dispatch) {\n let { $from, $to } = state.selection;\n let range = $from.blockRange($to, node => node.childCount > 0 && node.firstChild.type == itemType);\n if (!range)\n return false;\n if (!dispatch)\n return true;\n if ($from.node(range.depth - 1).type == itemType) // Inside a parent list\n return liftToOuterList(state, dispatch, itemType, range);\n else // Outer list node\n return liftOutOfList(state, dispatch, range);\n };\n}\nfunction liftToOuterList(state, dispatch, itemType, range) {\n let tr = state.tr, end = range.end, endOfList = range.$to.end(range.depth);\n if (end < endOfList) {\n // There are siblings after the lifted items, which must become\n // children of the last item\n tr.step(new prosemirror_transform__WEBPACK_IMPORTED_MODULE_1__.ReplaceAroundStep(end - 1, endOfList, end, endOfList, new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(itemType.create(null, range.parent.copy())), 1, 0), 1, true));\n range = new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.NodeRange(tr.doc.resolve(range.$from.pos), tr.doc.resolve(endOfList), range.depth);\n }\n const target = (0,prosemirror_transform__WEBPACK_IMPORTED_MODULE_1__.liftTarget)(range);\n if (target == null)\n return false;\n tr.lift(range, target);\n let $after = tr.doc.resolve(tr.mapping.map(end, -1) - 1);\n if ((0,prosemirror_transform__WEBPACK_IMPORTED_MODULE_1__.canJoin)(tr.doc, $after.pos) && $after.nodeBefore.type == $after.nodeAfter.type)\n tr.join($after.pos);\n dispatch(tr.scrollIntoView());\n return true;\n}\nfunction liftOutOfList(state, dispatch, range) {\n let tr = state.tr, list = range.parent;\n // Merge the list items into a single big item\n for (let pos = range.end, i = range.endIndex - 1, e = range.startIndex; i > e; i--) {\n pos -= list.child(i).nodeSize;\n tr.delete(pos - 1, pos + 1);\n }\n let $start = tr.doc.resolve(range.start), item = $start.nodeAfter;\n if (tr.mapping.map(range.end) != range.start + $start.nodeAfter.nodeSize)\n return false;\n let atStart = range.startIndex == 0, atEnd = range.endIndex == list.childCount;\n let parent = $start.node(-1), indexBefore = $start.index(-1);\n if (!parent.canReplace(indexBefore + (atStart ? 0 : 1), indexBefore + 1, item.content.append(atEnd ? prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.empty : prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(list))))\n return false;\n let start = $start.pos, end = start + item.nodeSize;\n // Strip off the surrounding list. At the sides where we're not at\n // the end of the list, the existing list is closed. At sides where\n // this is the end, it is overwritten to its end.\n tr.step(new prosemirror_transform__WEBPACK_IMPORTED_MODULE_1__.ReplaceAroundStep(start - (atStart ? 1 : 0), end + (atEnd ? 1 : 0), start + 1, end - 1, new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice((atStart ? prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.empty : prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(list.copy(prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.empty)))\n .append(atEnd ? prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.empty : prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(list.copy(prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.empty))), atStart ? 0 : 1, atEnd ? 0 : 1), atStart ? 0 : 1));\n dispatch(tr.scrollIntoView());\n return true;\n}\n/**\nCreate a command to sink the list item around the selection down\ninto an inner list.\n*/\nfunction sinkListItem(itemType) {\n return function (state, dispatch) {\n let { $from, $to } = state.selection;\n let range = $from.blockRange($to, node => node.childCount > 0 && node.firstChild.type == itemType);\n if (!range)\n return false;\n let startIndex = range.startIndex;\n if (startIndex == 0)\n return false;\n let parent = range.parent, nodeBefore = parent.child(startIndex - 1);\n if (nodeBefore.type != itemType)\n return false;\n if (dispatch) {\n let nestedBefore = nodeBefore.lastChild && nodeBefore.lastChild.type == parent.type;\n let inner = prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(nestedBefore ? itemType.create() : null);\n let slice = new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(itemType.create(null, prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(parent.type.create(null, inner)))), nestedBefore ? 3 : 1, 0);\n let before = range.start, after = range.end;\n dispatch(state.tr.step(new prosemirror_transform__WEBPACK_IMPORTED_MODULE_1__.ReplaceAroundStep(before - (nestedBefore ? 3 : 1), after, before, after, slice, 1, true))\n .scrollIntoView());\n }\n return true;\n };\n}\n\n\n//# sourceURL=[module]\n//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"file":"(ssr)/./node_modules/prosemirror-schema-list/dist/index.js","mappings":";;;;;;;;;;;;;;;;AAAuG;AACxC;AACjB;;AAE9C;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,aAAa,SAAS,kCAAkC;AACxD,iBAAiB;AACjB,yBAAyB;AACzB,eAAe;AACf;AACA,wDAAwD,yBAAyB;AACjF;AACA;AACA;AACA;AACA;AACA;AACA,iBAAiB,WAAW;AAC5B,cAAc;AACd;AACA;AACA;AACA;AACA;AACA,iBAAiB,WAAW;AAC5B,cAAc,eAAe;AAC7B;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,yCAAyC,yCAAyC;AAClF,uCAAuC,yCAAyC;AAChF,mCAAmC,sBAAsB;AACzD,KAAK;AACL;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,cAAc,aAAa;AAC3B;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,yBAAyB,wDAAS;AAClC;AACA,wBAAwB,wDAAS;AACjC;AACA;AACA,eAAe,mEAAY;AAC3B;AACA;AACA;AACA;AACA;AACA;AACA;AACA,kBAAkB,uDAAQ;AAC1B,sCAAsC,QAAQ;AAC9C,kBAAkB,uDAAQ;AAC1B,gBAAgB,oEAAiB,4EAA4E,oDAAK;AAClH;AACA,oBAAoB,qBAAqB;AACzC;AACA;AACA;AACA;AACA,qEAAqE,OAAO;AAC5E,sBAAsB,+DAAQ;AAC9B;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,cAAc,mBAAmB;AACjC;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,2BAA2B,uDAAQ;AACnC;AACA;AACA;AACA,wDAAwD,sBAAsB;AAC9E,2BAA2B,uDAAQ;AACnC;AACA;AACA;AACA,mCAAmC,uDAAQ;AAC3C;AACA,+EAA+E,oDAAK;AACpF;AACA;AACA;AACA;AACA;AACA;AACA,iBAAiB;AACjB;AACA,oCAAoC,wDAAS;AAC7C;AACA;AACA;AACA;AACA;AACA;AACA,8CAA8C,mCAAmC,UAAU,gBAAgB;AAC3G,aAAa,+DAAQ;AACrB;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,SAAS;AACT;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,cAAc,aAAa;AAC3B;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,oBAAoB,oEAAiB,yCAAyC,oDAAK,CAAC,uDAAQ;AAC5F,oBAAoB,wDAAS;AAC7B;AACA,mBAAmB,iEAAU;AAC7B;AACA;AACA;AACA;AACA,QAAQ,8DAAO;AACf;AACA;AACA;AACA;AACA;AACA;AACA;AACA,4EAA4E,OAAO;AACnF;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,yGAAyG,uDAAQ,SAAS,uDAAQ;AAClI;AACA;AACA;AACA;AACA;AACA,gBAAgB,oEAAiB,2EAA2E,oDAAK,YAAY,uDAAQ,SAAS,uDAAQ,gBAAgB,uDAAQ;AAC9K,wBAAwB,uDAAQ,SAAS,uDAAQ,gBAAgB,uDAAQ;AACzE;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,cAAc,aAAa;AAC3B;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,wBAAwB,uDAAQ;AAChC,4BAA4B,oDAAK,CAAC,uDAAQ,4BAA4B,uDAAQ;AAC9E;AACA,uCAAuC,oEAAiB;AACxD;AACA;AACA;AACA;AACA;;AAE2J","sources":["E:\\GIT\\mvp\\nashel-frontend\\node_modules\\prosemirror-schema-list\\dist\\index.js"],"sourcesContent":["import { findWrapping, ReplaceAroundStep, canSplit, liftTarget, canJoin } from 'prosemirror-transform';\nimport { NodeRange, Fragment, Slice } from 'prosemirror-model';\nimport { Selection } from 'prosemirror-state';\n\nconst olDOM = [\"ol\", 0], ulDOM = [\"ul\", 0], liDOM = [\"li\", 0];\n/**\nAn ordered list [node spec](https://prosemirror.net/docs/ref/#model.NodeSpec). Has a single\nattribute, `order`, which determines the number at which the list\nstarts counting, and defaults to 1. Represented as an `<ol>`\nelement.\n*/\nconst orderedList = {\n    attrs: { order: { default: 1, validate: \"number\" } },\n    parseDOM: [{ tag: \"ol\", getAttrs(dom) {\n                return { order: dom.hasAttribute(\"start\") ? +dom.getAttribute(\"start\") : 1 };\n            } }],\n    toDOM(node) {\n        return node.attrs.order == 1 ? olDOM : [\"ol\", { start: node.attrs.order }, 0];\n    }\n};\n/**\nA bullet list node spec, represented in the DOM as `<ul>`.\n*/\nconst bulletList = {\n    parseDOM: [{ tag: \"ul\" }],\n    toDOM() { return ulDOM; }\n};\n/**\nA list item (`<li>`) spec.\n*/\nconst listItem = {\n    parseDOM: [{ tag: \"li\" }],\n    toDOM() { return liDOM; },\n    defining: true\n};\nfunction add(obj, props) {\n    let copy = {};\n    for (let prop in obj)\n        copy[prop] = obj[prop];\n    for (let prop in props)\n        copy[prop] = props[prop];\n    return copy;\n}\n/**\nConvenience function for adding list-related node types to a map\nspecifying the nodes for a schema. Adds\n[`orderedList`](https://prosemirror.net/docs/ref/#schema-list.orderedList) as `\"ordered_list\"`,\n[`bulletList`](https://prosemirror.net/docs/ref/#schema-list.bulletList) as `\"bullet_list\"`, and\n[`listItem`](https://prosemirror.net/docs/ref/#schema-list.listItem) as `\"list_item\"`.\n\n`itemContent` determines the content expression for the list items.\nIf you want the commands defined in this module to apply to your\nlist structure, it should have a shape like `\"paragraph block*\"` or\n`\"paragraph (ordered_list | bullet_list)*\"`. `listGroup` can be\ngiven to assign a group name to the list node types, for example\n`\"block\"`.\n*/\nfunction addListNodes(nodes, itemContent, listGroup) {\n    return nodes.append({\n        ordered_list: add(orderedList, { content: \"list_item+\", group: listGroup }),\n        bullet_list: add(bulletList, { content: \"list_item+\", group: listGroup }),\n        list_item: add(listItem, { content: itemContent })\n    });\n}\n/**\nReturns a command function that wraps the selection in a list with\nthe given type an attributes. If `dispatch` is null, only return a\nvalue to indicate whether this is possible, but don't actually\nperform the change.\n*/\nfunction wrapInList(listType, attrs = null) {\n    return function (state, dispatch) {\n        let { $from, $to } = state.selection;\n        let range = $from.blockRange($to);\n        if (!range)\n            return false;\n        let tr = dispatch ? state.tr : null;\n        if (!wrapRangeInList(tr, range, listType, attrs))\n            return false;\n        if (dispatch)\n            dispatch(tr.scrollIntoView());\n        return true;\n    };\n}\n/**\nTry to wrap the given node range in a list of the given type.\nReturn `true` when this is possible, `false` otherwise. When `tr`\nis non-null, the wrapping is added to that transaction. When it is\n`null`, the function only queries whether the wrapping is\npossible.\n*/\nfunction wrapRangeInList(tr, range, listType, attrs = null) {\n    let doJoin = false, outerRange = range, doc = range.$from.doc;\n    // This is at the top of an existing list item\n    if (range.depth >= 2 && range.$from.node(range.depth - 1).type.compatibleContent(listType) && range.startIndex == 0) {\n        // Don't do anything if this is the top of the list\n        if (range.$from.index(range.depth - 1) == 0)\n            return false;\n        let $insert = doc.resolve(range.start - 2);\n        outerRange = new NodeRange($insert, $insert, range.depth);\n        if (range.endIndex < range.parent.childCount)\n            range = new NodeRange(range.$from, doc.resolve(range.$to.end(range.depth)), range.depth);\n        doJoin = true;\n    }\n    let wrap = findWrapping(outerRange, listType, attrs, range);\n    if (!wrap)\n        return false;\n    if (tr)\n        doWrapInList(tr, range, wrap, doJoin, listType);\n    return true;\n}\nfunction doWrapInList(tr, range, wrappers, joinBefore, listType) {\n    let content = Fragment.empty;\n    for (let i = wrappers.length - 1; i >= 0; i--)\n        content = Fragment.from(wrappers[i].type.create(wrappers[i].attrs, content));\n    tr.step(new ReplaceAroundStep(range.start - (joinBefore ? 2 : 0), range.end, range.start, range.end, new Slice(content, 0, 0), wrappers.length, true));\n    let found = 0;\n    for (let i = 0; i < wrappers.length; i++)\n        if (wrappers[i].type == listType)\n            found = i + 1;\n    let splitDepth = wrappers.length - found;\n    let splitPos = range.start + wrappers.length - (joinBefore ? 2 : 0), parent = range.parent;\n    for (let i = range.startIndex, e = range.endIndex, first = true; i < e; i++, first = false) {\n        if (!first && canSplit(tr.doc, splitPos, splitDepth)) {\n            tr.split(splitPos, splitDepth);\n            splitPos += 2 * splitDepth;\n        }\n        splitPos += parent.child(i).nodeSize;\n    }\n    return tr;\n}\n/**\nBuild a command that splits a non-empty textblock at the top level\nof a list item by also splitting that list item.\n*/\nfunction splitListItem(itemType, itemAttrs) {\n    return function (state, dispatch) {\n        let { $from, $to, node } = state.selection;\n        if ((node && node.isBlock) || $from.depth < 2 || !$from.sameParent($to))\n            return false;\n        let grandParent = $from.node(-1);\n        if (grandParent.type != itemType)\n            return false;\n        if ($from.parent.content.size == 0 && $from.node(-1).childCount == $from.indexAfter(-1)) {\n            // In an empty block. If this is a nested list, the wrapping\n            // list item should be split. Otherwise, bail out and let next\n            // command handle lifting.\n            if ($from.depth == 3 || $from.node(-3).type != itemType ||\n                $from.index(-2) != $from.node(-2).childCount - 1)\n                return false;\n            if (dispatch) {\n                let wrap = Fragment.empty;\n                let depthBefore = $from.index(-1) ? 1 : $from.index(-2) ? 2 : 3;\n                // Build a fragment containing empty versions of the structure\n                // from the outer list item to the parent node of the cursor\n                for (let d = $from.depth - depthBefore; d >= $from.depth - 3; d--)\n                    wrap = Fragment.from($from.node(d).copy(wrap));\n                let depthAfter = $from.indexAfter(-1) < $from.node(-2).childCount ? 1\n                    : $from.indexAfter(-2) < $from.node(-3).childCount ? 2 : 3;\n                // Add a second list item with an empty default start node\n                wrap = wrap.append(Fragment.from(itemType.createAndFill()));\n                let start = $from.before($from.depth - (depthBefore - 1));\n                let tr = state.tr.replace(start, $from.after(-depthAfter), new Slice(wrap, 4 - depthBefore, 0));\n                let sel = -1;\n                tr.doc.nodesBetween(start, tr.doc.content.size, (node, pos) => {\n                    if (sel > -1)\n                        return false;\n                    if (node.isTextblock && node.content.size == 0)\n                        sel = pos + 1;\n                });\n                if (sel > -1)\n                    tr.setSelection(Selection.near(tr.doc.resolve(sel)));\n                dispatch(tr.scrollIntoView());\n            }\n            return true;\n        }\n        let nextType = $to.pos == $from.end() ? grandParent.contentMatchAt(0).defaultType : null;\n        let tr = state.tr.delete($from.pos, $to.pos);\n        let types = nextType ? [itemAttrs ? { type: itemType, attrs: itemAttrs } : null, { type: nextType }] : undefined;\n        if (!canSplit(tr.doc, $from.pos, 2, types))\n            return false;\n        if (dispatch)\n            dispatch(tr.split($from.pos, 2, types).scrollIntoView());\n        return true;\n    };\n}\n/**\nActs like [`splitListItem`](https://prosemirror.net/docs/ref/#schema-list.splitListItem), but\nwithout resetting the set of active marks at the cursor.\n*/\nfunction splitListItemKeepMarks(itemType, itemAttrs) {\n    let split = splitListItem(itemType, itemAttrs);\n    return (state, dispatch) => {\n        return split(state, dispatch && (tr => {\n            let marks = state.storedMarks || (state.selection.$to.parentOffset && state.selection.$from.marks());\n            if (marks)\n                tr.ensureMarks(marks);\n            dispatch(tr);\n        }));\n    };\n}\n/**\nCreate a command to lift the list item around the selection up into\na wrapping list.\n*/\nfunction liftListItem(itemType) {\n    return function (state, dispatch) {\n        let { $from, $to } = state.selection;\n        let range = $from.blockRange($to, node => node.childCount > 0 && node.firstChild.type == itemType);\n        if (!range)\n            return false;\n        if (!dispatch)\n            return true;\n        if ($from.node(range.depth - 1).type == itemType) // Inside a parent list\n            return liftToOuterList(state, dispatch, itemType, range);\n        else // Outer list node\n            return liftOutOfList(state, dispatch, range);\n    };\n}\nfunction liftToOuterList(state, dispatch, itemType, range) {\n    let tr = state.tr, end = range.end, endOfList = range.$to.end(range.depth);\n    if (end < endOfList) {\n        // There are siblings after the lifted items, which must become\n        // children of the last item\n        tr.step(new ReplaceAroundStep(end - 1, endOfList, end, endOfList, new Slice(Fragment.from(itemType.create(null, range.parent.copy())), 1, 0), 1, true));\n        range = new NodeRange(tr.doc.resolve(range.$from.pos), tr.doc.resolve(endOfList), range.depth);\n    }\n    const target = liftTarget(range);\n    if (target == null)\n        return false;\n    tr.lift(range, target);\n    let $after = tr.doc.resolve(tr.mapping.map(end, -1) - 1);\n    if (canJoin(tr.doc, $after.pos) && $after.nodeBefore.type == $after.nodeAfter.type)\n        tr.join($after.pos);\n    dispatch(tr.scrollIntoView());\n    return true;\n}\nfunction liftOutOfList(state, dispatch, range) {\n    let tr = state.tr, list = range.parent;\n    // Merge the list items into a single big item\n    for (let pos = range.end, i = range.endIndex - 1, e = range.startIndex; i > e; i--) {\n        pos -= list.child(i).nodeSize;\n        tr.delete(pos - 1, pos + 1);\n    }\n    let $start = tr.doc.resolve(range.start), item = $start.nodeAfter;\n    if (tr.mapping.map(range.end) != range.start + $start.nodeAfter.nodeSize)\n        return false;\n    let atStart = range.startIndex == 0, atEnd = range.endIndex == list.childCount;\n    let parent = $start.node(-1), indexBefore = $start.index(-1);\n    if (!parent.canReplace(indexBefore + (atStart ? 0 : 1), indexBefore + 1, item.content.append(atEnd ? Fragment.empty : Fragment.from(list))))\n        return false;\n    let start = $start.pos, end = start + item.nodeSize;\n    // Strip off the surrounding list. At the sides where we're not at\n    // the end of the list, the existing list is closed. At sides where\n    // this is the end, it is overwritten to its end.\n    tr.step(new ReplaceAroundStep(start - (atStart ? 1 : 0), end + (atEnd ? 1 : 0), start + 1, end - 1, new Slice((atStart ? Fragment.empty : Fragment.from(list.copy(Fragment.empty)))\n        .append(atEnd ? Fragment.empty : Fragment.from(list.copy(Fragment.empty))), atStart ? 0 : 1, atEnd ? 0 : 1), atStart ? 0 : 1));\n    dispatch(tr.scrollIntoView());\n    return true;\n}\n/**\nCreate a command to sink the list item around the selection down\ninto an inner list.\n*/\nfunction sinkListItem(itemType) {\n    return function (state, dispatch) {\n        let { $from, $to } = state.selection;\n        let range = $from.blockRange($to, node => node.childCount > 0 && node.firstChild.type == itemType);\n        if (!range)\n            return false;\n        let startIndex = range.startIndex;\n        if (startIndex == 0)\n            return false;\n        let parent = range.parent, nodeBefore = parent.child(startIndex - 1);\n        if (nodeBefore.type != itemType)\n            return false;\n        if (dispatch) {\n            let nestedBefore = nodeBefore.lastChild && nodeBefore.lastChild.type == parent.type;\n            let inner = Fragment.from(nestedBefore ? itemType.create() : null);\n            let slice = new Slice(Fragment.from(itemType.create(null, Fragment.from(parent.type.create(null, inner)))), nestedBefore ? 3 : 1, 0);\n            let before = range.start, after = range.end;\n            dispatch(state.tr.step(new ReplaceAroundStep(before - (nestedBefore ? 3 : 1), after, before, after, slice, 1, true))\n                .scrollIntoView());\n        }\n        return true;\n    };\n}\n\nexport { addListNodes, bulletList, liftListItem, listItem, orderedList, sinkListItem, splitListItem, splitListItemKeepMarks, wrapInList, wrapRangeInList };\n"],"names":[],"ignoreList":[0],"sourceRoot":""}\n//# sourceURL=webpack-internal:///(ssr)/./node_modules/prosemirror-schema-list/dist/index.js\n");
-
-/***/ })
-
-};
-;
\ No newline at end of file
diff --git a/.next/server/vendor-chunks/prosemirror-state.js b/.next/server/vendor-chunks/prosemirror-state.js
deleted file mode 100644
index 5b3669d..0000000
--- a/.next/server/vendor-chunks/prosemirror-state.js
+++ /dev/null
@@ -1,25 +0,0 @@
-"use strict";
-/*
- * ATTENTION: An "eval-source-map" devtool has been used.
- * This devtool is neither made for production nor for readable output files.
- * It uses "eval()" calls to create a separate source file with attached SourceMaps in the browser devtools.
- * If you are trying to read the output file, select a different devtool (https://webpack.js.org/configuration/devtool/)
- * or disable the default devtool with "devtool: false".
- * If you are looking for production-ready output files, see mode: "production" (https://webpack.js.org/configuration/mode/).
- */
-exports.id = "vendor-chunks/prosemirror-state";
-exports.ids = ["vendor-chunks/prosemirror-state"];
-exports.modules = {
-
-/***/ "(ssr)/./node_modules/prosemirror-state/dist/index.js":
-/*!******************************************************!*\
- !*** ./node_modules/prosemirror-state/dist/index.js ***!
- \******************************************************/
-/***/ ((__unused_webpack___webpack_module__, __webpack_exports__, __webpack_require__) => {
-
-eval("__webpack_require__.r(__webpack_exports__);\n/* harmony export */ __webpack_require__.d(__webpack_exports__, {\n/* harmony export */ AllSelection: () => (/* binding */ AllSelection),\n/* harmony export */ EditorState: () => (/* binding */ EditorState),\n/* harmony export */ NodeSelection: () => (/* binding */ NodeSelection),\n/* harmony export */ Plugin: () => (/* binding */ Plugin),\n/* harmony export */ PluginKey: () => (/* binding */ PluginKey),\n/* harmony export */ Selection: () => (/* binding */ Selection),\n/* harmony export */ SelectionRange: () => (/* binding */ SelectionRange),\n/* harmony export */ TextSelection: () => (/* binding */ TextSelection),\n/* harmony export */ Transaction: () => (/* binding */ Transaction)\n/* harmony export */ });\n/* harmony import */ var prosemirror_model__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! prosemirror-model */ \"(ssr)/./node_modules/prosemirror-model/dist/index.js\");\n/* harmony import */ var prosemirror_transform__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! prosemirror-transform */ \"(ssr)/./node_modules/prosemirror-transform/dist/index.js\");\n\n\n\nconst classesById = Object.create(null);\n/**\nSuperclass for editor selections. Every selection type should\nextend this. Should not be instantiated directly.\n*/\nclass Selection {\n /**\n Initialize a selection with the head and anchor and ranges. If no\n ranges are given, constructs a single range across `$anchor` and\n `$head`.\n */\n constructor(\n /**\n The resolved anchor of the selection (the side that stays in\n place when the selection is modified).\n */\n $anchor, \n /**\n The resolved head of the selection (the side that moves when\n the selection is modified).\n */\n $head, ranges) {\n this.$anchor = $anchor;\n this.$head = $head;\n this.ranges = ranges || [new SelectionRange($anchor.min($head), $anchor.max($head))];\n }\n /**\n The selection's anchor, as an unresolved position.\n */\n get anchor() { return this.$anchor.pos; }\n /**\n The selection's head.\n */\n get head() { return this.$head.pos; }\n /**\n The lower bound of the selection's main range.\n */\n get from() { return this.$from.pos; }\n /**\n The upper bound of the selection's main range.\n */\n get to() { return this.$to.pos; }\n /**\n The resolved lower bound of the selection's main range.\n */\n get $from() {\n return this.ranges[0].$from;\n }\n /**\n The resolved upper bound of the selection's main range.\n */\n get $to() {\n return this.ranges[0].$to;\n }\n /**\n Indicates whether the selection contains any content.\n */\n get empty() {\n let ranges = this.ranges;\n for (let i = 0; i < ranges.length; i++)\n if (ranges[i].$from.pos != ranges[i].$to.pos)\n return false;\n return true;\n }\n /**\n Get the content of this selection as a slice.\n */\n content() {\n return this.$from.doc.slice(this.from, this.to, true);\n }\n /**\n Replace the selection with a slice or, if no slice is given,\n delete the selection. Will append to the given transaction.\n */\n replace(tr, content = prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice.empty) {\n // Put the new selection at the position after the inserted\n // content. When that ended in an inline node, search backwards,\n // to get the position after that node. If not, search forward.\n let lastNode = content.content.lastChild, lastParent = null;\n for (let i = 0; i < content.openEnd; i++) {\n lastParent = lastNode;\n lastNode = lastNode.lastChild;\n }\n let mapFrom = tr.steps.length, ranges = this.ranges;\n for (let i = 0; i < ranges.length; i++) {\n let { $from, $to } = ranges[i], mapping = tr.mapping.slice(mapFrom);\n tr.replaceRange(mapping.map($from.pos), mapping.map($to.pos), i ? prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice.empty : content);\n if (i == 0)\n selectionToInsertionEnd(tr, mapFrom, (lastNode ? lastNode.isInline : lastParent && lastParent.isTextblock) ? -1 : 1);\n }\n }\n /**\n Replace the selection with the given node, appending the changes\n to the given transaction.\n */\n replaceWith(tr, node) {\n let mapFrom = tr.steps.length, ranges = this.ranges;\n for (let i = 0; i < ranges.length; i++) {\n let { $from, $to } = ranges[i], mapping = tr.mapping.slice(mapFrom);\n let from = mapping.map($from.pos), to = mapping.map($to.pos);\n if (i) {\n tr.deleteRange(from, to);\n }\n else {\n tr.replaceRangeWith(from, to, node);\n selectionToInsertionEnd(tr, mapFrom, node.isInline ? -1 : 1);\n }\n }\n }\n /**\n Find a valid cursor or leaf node selection starting at the given\n position and searching back if `dir` is negative, and forward if\n positive. When `textOnly` is true, only consider cursor\n selections. Will return null when no valid selection position is\n found.\n */\n static findFrom($pos, dir, textOnly = false) {\n let inner = $pos.parent.inlineContent ? new TextSelection($pos)\n : findSelectionIn($pos.node(0), $pos.parent, $pos.pos, $pos.index(), dir, textOnly);\n if (inner)\n return inner;\n for (let depth = $pos.depth - 1; depth >= 0; depth--) {\n let found = dir < 0\n ? findSelectionIn($pos.node(0), $pos.node(depth), $pos.before(depth + 1), $pos.index(depth), dir, textOnly)\n : findSelectionIn($pos.node(0), $pos.node(depth), $pos.after(depth + 1), $pos.index(depth) + 1, dir, textOnly);\n if (found)\n return found;\n }\n return null;\n }\n /**\n Find a valid cursor or leaf node selection near the given\n position. Searches forward first by default, but if `bias` is\n negative, it will search backwards first.\n */\n static near($pos, bias = 1) {\n return this.findFrom($pos, bias) || this.findFrom($pos, -bias) || new AllSelection($pos.node(0));\n }\n /**\n Find the cursor or leaf node selection closest to the start of\n the given document. Will return an\n [`AllSelection`](https://prosemirror.net/docs/ref/#state.AllSelection) if no valid position\n exists.\n */\n static atStart(doc) {\n return findSelectionIn(doc, doc, 0, 0, 1) || new AllSelection(doc);\n }\n /**\n Find the cursor or leaf node selection closest to the end of the\n given document.\n */\n static atEnd(doc) {\n return findSelectionIn(doc, doc, doc.content.size, doc.childCount, -1) || new AllSelection(doc);\n }\n /**\n Deserialize the JSON representation of a selection. Must be\n implemented for custom classes (as a static class method).\n */\n static fromJSON(doc, json) {\n if (!json || !json.type)\n throw new RangeError(\"Invalid input for Selection.fromJSON\");\n let cls = classesById[json.type];\n if (!cls)\n throw new RangeError(`No selection type ${json.type} defined`);\n return cls.fromJSON(doc, json);\n }\n /**\n To be able to deserialize selections from JSON, custom selection\n classes must register themselves with an ID string, so that they\n can be disambiguated. Try to pick something that's unlikely to\n clash with classes from other modules.\n */\n static jsonID(id, selectionClass) {\n if (id in classesById)\n throw new RangeError(\"Duplicate use of selection JSON ID \" + id);\n classesById[id] = selectionClass;\n selectionClass.prototype.jsonID = id;\n return selectionClass;\n }\n /**\n Get a [bookmark](https://prosemirror.net/docs/ref/#state.SelectionBookmark) for this selection,\n which is a value that can be mapped without having access to a\n current document, and later resolved to a real selection for a\n given document again. (This is used mostly by the history to\n track and restore old selections.) The default implementation of\n this method just converts the selection to a text selection and\n returns the bookmark for that.\n */\n getBookmark() {\n return TextSelection.between(this.$anchor, this.$head).getBookmark();\n }\n}\nSelection.prototype.visible = true;\n/**\nRepresents a selected range in a document.\n*/\nclass SelectionRange {\n /**\n Create a range.\n */\n constructor(\n /**\n The lower bound of the range.\n */\n $from, \n /**\n The upper bound of the range.\n */\n $to) {\n this.$from = $from;\n this.$to = $to;\n }\n}\nlet warnedAboutTextSelection = false;\nfunction checkTextSelection($pos) {\n if (!warnedAboutTextSelection && !$pos.parent.inlineContent) {\n warnedAboutTextSelection = true;\n console[\"warn\"](\"TextSelection endpoint not pointing into a node with inline content (\" + $pos.parent.type.name + \")\");\n }\n}\n/**\nA text selection represents a classical editor selection, with a\nhead (the moving side) and anchor (immobile side), both of which\npoint into textblock nodes. It can be empty (a regular cursor\nposition).\n*/\nclass TextSelection extends Selection {\n /**\n Construct a text selection between the given points.\n */\n constructor($anchor, $head = $anchor) {\n checkTextSelection($anchor);\n checkTextSelection($head);\n super($anchor, $head);\n }\n /**\n Returns a resolved position if this is a cursor selection (an\n empty text selection), and null otherwise.\n */\n get $cursor() { return this.$anchor.pos == this.$head.pos ? this.$head : null; }\n map(doc, mapping) {\n let $head = doc.resolve(mapping.map(this.head));\n if (!$head.parent.inlineContent)\n return Selection.near($head);\n let $anchor = doc.resolve(mapping.map(this.anchor));\n return new TextSelection($anchor.parent.inlineContent ? $anchor : $head, $head);\n }\n replace(tr, content = prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice.empty) {\n super.replace(tr, content);\n if (content == prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice.empty) {\n let marks = this.$from.marksAcross(this.$to);\n if (marks)\n tr.ensureMarks(marks);\n }\n }\n eq(other) {\n return other instanceof TextSelection && other.anchor == this.anchor && other.head == this.head;\n }\n getBookmark() {\n return new TextBookmark(this.anchor, this.head);\n }\n toJSON() {\n return { type: \"text\", anchor: this.anchor, head: this.head };\n }\n /**\n @internal\n */\n static fromJSON(doc, json) {\n if (typeof json.anchor != \"number\" || typeof json.head != \"number\")\n throw new RangeError(\"Invalid input for TextSelection.fromJSON\");\n return new TextSelection(doc.resolve(json.anchor), doc.resolve(json.head));\n }\n /**\n Create a text selection from non-resolved positions.\n */\n static create(doc, anchor, head = anchor) {\n let $anchor = doc.resolve(anchor);\n return new this($anchor, head == anchor ? $anchor : doc.resolve(head));\n }\n /**\n Return a text selection that spans the given positions or, if\n they aren't text positions, find a text selection near them.\n `bias` determines whether the method searches forward (default)\n or backwards (negative number) first. Will fall back to calling\n [`Selection.near`](https://prosemirror.net/docs/ref/#state.Selection^near) when the document\n doesn't contain a valid text position.\n */\n static between($anchor, $head, bias) {\n let dPos = $anchor.pos - $head.pos;\n if (!bias || dPos)\n bias = dPos >= 0 ? 1 : -1;\n if (!$head.parent.inlineContent) {\n let found = Selection.findFrom($head, bias, true) || Selection.findFrom($head, -bias, true);\n if (found)\n $head = found.$head;\n else\n return Selection.near($head, bias);\n }\n if (!$anchor.parent.inlineContent) {\n if (dPos == 0) {\n $anchor = $head;\n }\n else {\n $anchor = (Selection.findFrom($anchor, -bias, true) || Selection.findFrom($anchor, bias, true)).$anchor;\n if (($anchor.pos < $head.pos) != (dPos < 0))\n $anchor = $head;\n }\n }\n return new TextSelection($anchor, $head);\n }\n}\nSelection.jsonID(\"text\", TextSelection);\nclass TextBookmark {\n constructor(anchor, head) {\n this.anchor = anchor;\n this.head = head;\n }\n map(mapping) {\n return new TextBookmark(mapping.map(this.anchor), mapping.map(this.head));\n }\n resolve(doc) {\n return TextSelection.between(doc.resolve(this.anchor), doc.resolve(this.head));\n }\n}\n/**\nA node selection is a selection that points at a single node. All\nnodes marked [selectable](https://prosemirror.net/docs/ref/#model.NodeSpec.selectable) can be the\ntarget of a node selection. In such a selection, `from` and `to`\npoint directly before and after the selected node, `anchor` equals\n`from`, and `head` equals `to`..\n*/\nclass NodeSelection extends Selection {\n /**\n Create a node selection. Does not verify the validity of its\n argument.\n */\n constructor($pos) {\n let node = $pos.nodeAfter;\n let $end = $pos.node(0).resolve($pos.pos + node.nodeSize);\n super($pos, $end);\n this.node = node;\n }\n map(doc, mapping) {\n let { deleted, pos } = mapping.mapResult(this.anchor);\n let $pos = doc.resolve(pos);\n if (deleted)\n return Selection.near($pos);\n return new NodeSelection($pos);\n }\n content() {\n return new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(this.node), 0, 0);\n }\n eq(other) {\n return other instanceof NodeSelection && other.anchor == this.anchor;\n }\n toJSON() {\n return { type: \"node\", anchor: this.anchor };\n }\n getBookmark() { return new NodeBookmark(this.anchor); }\n /**\n @internal\n */\n static fromJSON(doc, json) {\n if (typeof json.anchor != \"number\")\n throw new RangeError(\"Invalid input for NodeSelection.fromJSON\");\n return new NodeSelection(doc.resolve(json.anchor));\n }\n /**\n Create a node selection from non-resolved positions.\n */\n static create(doc, from) {\n return new NodeSelection(doc.resolve(from));\n }\n /**\n Determines whether the given node may be selected as a node\n selection.\n */\n static isSelectable(node) {\n return !node.isText && node.type.spec.selectable !== false;\n }\n}\nNodeSelection.prototype.visible = false;\nSelection.jsonID(\"node\", NodeSelection);\nclass NodeBookmark {\n constructor(anchor) {\n this.anchor = anchor;\n }\n map(mapping) {\n let { deleted, pos } = mapping.mapResult(this.anchor);\n return deleted ? new TextBookmark(pos, pos) : new NodeBookmark(pos);\n }\n resolve(doc) {\n let $pos = doc.resolve(this.anchor), node = $pos.nodeAfter;\n if (node && NodeSelection.isSelectable(node))\n return new NodeSelection($pos);\n return Selection.near($pos);\n }\n}\n/**\nA selection type that represents selecting the whole document\n(which can not necessarily be expressed with a text selection, when\nthere are for example leaf block nodes at the start or end of the\ndocument).\n*/\nclass AllSelection extends Selection {\n /**\n Create an all-selection over the given document.\n */\n constructor(doc) {\n super(doc.resolve(0), doc.resolve(doc.content.size));\n }\n replace(tr, content = prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice.empty) {\n if (content == prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice.empty) {\n tr.delete(0, tr.doc.content.size);\n let sel = Selection.atStart(tr.doc);\n if (!sel.eq(tr.selection))\n tr.setSelection(sel);\n }\n else {\n super.replace(tr, content);\n }\n }\n toJSON() { return { type: \"all\" }; }\n /**\n @internal\n */\n static fromJSON(doc) { return new AllSelection(doc); }\n map(doc) { return new AllSelection(doc); }\n eq(other) { return other instanceof AllSelection; }\n getBookmark() { return AllBookmark; }\n}\nSelection.jsonID(\"all\", AllSelection);\nconst AllBookmark = {\n map() { return this; },\n resolve(doc) { return new AllSelection(doc); }\n};\n// FIXME we'll need some awareness of text direction when scanning for selections\n// Try to find a selection inside the given node. `pos` points at the\n// position where the search starts. When `text` is true, only return\n// text selections.\nfunction findSelectionIn(doc, node, pos, index, dir, text = false) {\n if (node.inlineContent)\n return TextSelection.create(doc, pos);\n for (let i = index - (dir > 0 ? 0 : 1); dir > 0 ? i < node.childCount : i >= 0; i += dir) {\n let child = node.child(i);\n if (!child.isAtom) {\n let inner = findSelectionIn(doc, child, pos + dir, dir < 0 ? child.childCount : 0, dir, text);\n if (inner)\n return inner;\n }\n else if (!text && NodeSelection.isSelectable(child)) {\n return NodeSelection.create(doc, pos - (dir < 0 ? child.nodeSize : 0));\n }\n pos += child.nodeSize * dir;\n }\n return null;\n}\nfunction selectionToInsertionEnd(tr, startLen, bias) {\n let last = tr.steps.length - 1;\n if (last < startLen)\n return;\n let step = tr.steps[last];\n if (!(step instanceof prosemirror_transform__WEBPACK_IMPORTED_MODULE_1__.ReplaceStep || step instanceof prosemirror_transform__WEBPACK_IMPORTED_MODULE_1__.ReplaceAroundStep))\n return;\n let map = tr.mapping.maps[last], end;\n map.forEach((_from, _to, _newFrom, newTo) => { if (end == null)\n end = newTo; });\n tr.setSelection(Selection.near(tr.doc.resolve(end), bias));\n}\n\nconst UPDATED_SEL = 1, UPDATED_MARKS = 2, UPDATED_SCROLL = 4;\n/**\nAn editor state transaction, which can be applied to a state to\ncreate an updated state. Use\n[`EditorState.tr`](https://prosemirror.net/docs/ref/#state.EditorState.tr) to create an instance.\n\nTransactions track changes to the document (they are a subclass of\n[`Transform`](https://prosemirror.net/docs/ref/#transform.Transform)), but also other state changes,\nlike selection updates and adjustments of the set of [stored\nmarks](https://prosemirror.net/docs/ref/#state.EditorState.storedMarks). In addition, you can store\nmetadata properties in a transaction, which are extra pieces of\ninformation that client code or plugins can use to describe what a\ntransaction represents, so that they can update their [own\nstate](https://prosemirror.net/docs/ref/#state.StateField) accordingly.\n\nThe [editor view](https://prosemirror.net/docs/ref/#view.EditorView) uses a few metadata\nproperties: it will attach a property `\"pointer\"` with the value\n`true` to selection transactions directly caused by mouse or touch\ninput, a `\"composition\"` property holding an ID identifying the\ncomposition that caused it to transactions caused by composed DOM\ninput, and a `\"uiEvent\"` property of that may be `\"paste\"`,\n`\"cut\"`, or `\"drop\"`.\n*/\nclass Transaction extends prosemirror_transform__WEBPACK_IMPORTED_MODULE_1__.Transform {\n /**\n @internal\n */\n constructor(state) {\n super(state.doc);\n // The step count for which the current selection is valid.\n this.curSelectionFor = 0;\n // Bitfield to track which aspects of the state were updated by\n // this transaction.\n this.updated = 0;\n // Object used to store metadata properties for the transaction.\n this.meta = Object.create(null);\n this.time = Date.now();\n this.curSelection = state.selection;\n this.storedMarks = state.storedMarks;\n }\n /**\n The transaction's current selection. This defaults to the editor\n selection [mapped](https://prosemirror.net/docs/ref/#state.Selection.map) through the steps in the\n transaction, but can be overwritten with\n [`setSelection`](https://prosemirror.net/docs/ref/#state.Transaction.setSelection).\n */\n get selection() {\n if (this.curSelectionFor < this.steps.length) {\n this.curSelection = this.curSelection.map(this.doc, this.mapping.slice(this.curSelectionFor));\n this.curSelectionFor = this.steps.length;\n }\n return this.curSelection;\n }\n /**\n Update the transaction's current selection. Will determine the\n selection that the editor gets when the transaction is applied.\n */\n setSelection(selection) {\n if (selection.$from.doc != this.doc)\n throw new RangeError(\"Selection passed to setSelection must point at the current document\");\n this.curSelection = selection;\n this.curSelectionFor = this.steps.length;\n this.updated = (this.updated | UPDATED_SEL) & ~UPDATED_MARKS;\n this.storedMarks = null;\n return this;\n }\n /**\n Whether the selection was explicitly updated by this transaction.\n */\n get selectionSet() {\n return (this.updated & UPDATED_SEL) > 0;\n }\n /**\n Set the current stored marks.\n */\n setStoredMarks(marks) {\n this.storedMarks = marks;\n this.updated |= UPDATED_MARKS;\n return this;\n }\n /**\n Make sure the current stored marks or, if that is null, the marks\n at the selection, match the given set of marks. Does nothing if\n this is already the case.\n */\n ensureMarks(marks) {\n if (!prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Mark.sameSet(this.storedMarks || this.selection.$from.marks(), marks))\n this.setStoredMarks(marks);\n return this;\n }\n /**\n Add a mark to the set of stored marks.\n */\n addStoredMark(mark) {\n return this.ensureMarks(mark.addToSet(this.storedMarks || this.selection.$head.marks()));\n }\n /**\n Remove a mark or mark type from the set of stored marks.\n */\n removeStoredMark(mark) {\n return this.ensureMarks(mark.removeFromSet(this.storedMarks || this.selection.$head.marks()));\n }\n /**\n Whether the stored marks were explicitly set for this transaction.\n */\n get storedMarksSet() {\n return (this.updated & UPDATED_MARKS) > 0;\n }\n /**\n @internal\n */\n addStep(step, doc) {\n super.addStep(step, doc);\n this.updated = this.updated & ~UPDATED_MARKS;\n this.storedMarks = null;\n }\n /**\n Update the timestamp for the transaction.\n */\n setTime(time) {\n this.time = time;\n return this;\n }\n /**\n Replace the current selection with the given slice.\n */\n replaceSelection(slice) {\n this.selection.replace(this, slice);\n return this;\n }\n /**\n Replace the selection with the given node. When `inheritMarks` is\n true and the content is inline, it inherits the marks from the\n place where it is inserted.\n */\n replaceSelectionWith(node, inheritMarks = true) {\n let selection = this.selection;\n if (inheritMarks)\n node = node.mark(this.storedMarks || (selection.empty ? selection.$from.marks() : (selection.$from.marksAcross(selection.$to) || prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Mark.none)));\n selection.replaceWith(this, node);\n return this;\n }\n /**\n Delete the selection.\n */\n deleteSelection() {\n this.selection.replace(this);\n return this;\n }\n /**\n Replace the given range, or the selection if no range is given,\n with a text node containing the given string.\n */\n insertText(text, from, to) {\n let schema = this.doc.type.schema;\n if (from == null) {\n if (!text)\n return this.deleteSelection();\n return this.replaceSelectionWith(schema.text(text), true);\n }\n else {\n if (to == null)\n to = from;\n if (!text)\n return this.deleteRange(from, to);\n let marks = this.storedMarks;\n if (!marks) {\n let $from = this.doc.resolve(from);\n marks = to == from ? $from.marks() : $from.marksAcross(this.doc.resolve(to));\n }\n this.replaceRangeWith(from, to, schema.text(text, marks));\n if (!this.selection.empty && this.selection.to == from + text.length)\n this.setSelection(Selection.near(this.selection.$to));\n return this;\n }\n }\n /**\n Store a metadata property in this transaction, keyed either by\n name or by plugin.\n */\n setMeta(key, value) {\n this.meta[typeof key == \"string\" ? key : key.key] = value;\n return this;\n }\n /**\n Retrieve a metadata property for a given name or plugin.\n */\n getMeta(key) {\n return this.meta[typeof key == \"string\" ? key : key.key];\n }\n /**\n Returns true if this transaction doesn't contain any metadata,\n and can thus safely be extended.\n */\n get isGeneric() {\n for (let _ in this.meta)\n return false;\n return true;\n }\n /**\n Indicate that the editor should scroll the selection into view\n when updated to the state produced by this transaction.\n */\n scrollIntoView() {\n this.updated |= UPDATED_SCROLL;\n return this;\n }\n /**\n True when this transaction has had `scrollIntoView` called on it.\n */\n get scrolledIntoView() {\n return (this.updated & UPDATED_SCROLL) > 0;\n }\n}\n\nfunction bind(f, self) {\n return !self || !f ? f : f.bind(self);\n}\nclass FieldDesc {\n constructor(name, desc, self) {\n this.name = name;\n this.init = bind(desc.init, self);\n this.apply = bind(desc.apply, self);\n }\n}\nconst baseFields = [\n new FieldDesc(\"doc\", {\n init(config) { return config.doc || config.schema.topNodeType.createAndFill(); },\n apply(tr) { return tr.doc; }\n }),\n new FieldDesc(\"selection\", {\n init(config, instance) { return config.selection || Selection.atStart(instance.doc); },\n apply(tr) { return tr.selection; }\n }),\n new FieldDesc(\"storedMarks\", {\n init(config) { return config.storedMarks || null; },\n apply(tr, _marks, _old, state) { return state.selection.$cursor ? tr.storedMarks : null; }\n }),\n new FieldDesc(\"scrollToSelection\", {\n init() { return 0; },\n apply(tr, prev) { return tr.scrolledIntoView ? prev + 1 : prev; }\n })\n];\n// Object wrapping the part of a state object that stays the same\n// across transactions. Stored in the state's `config` property.\nclass Configuration {\n constructor(schema, plugins) {\n this.schema = schema;\n this.plugins = [];\n this.pluginsByKey = Object.create(null);\n this.fields = baseFields.slice();\n if (plugins)\n plugins.forEach(plugin => {\n if (this.pluginsByKey[plugin.key])\n throw new RangeError(\"Adding different instances of a keyed plugin (\" + plugin.key + \")\");\n this.plugins.push(plugin);\n this.pluginsByKey[plugin.key] = plugin;\n if (plugin.spec.state)\n this.fields.push(new FieldDesc(plugin.key, plugin.spec.state, plugin));\n });\n }\n}\n/**\nThe state of a ProseMirror editor is represented by an object of\nthis type. A state is a persistent data structure—it isn't\nupdated, but rather a new state value is computed from an old one\nusing the [`apply`](https://prosemirror.net/docs/ref/#state.EditorState.apply) method.\n\nA state holds a number of built-in fields, and plugins can\n[define](https://prosemirror.net/docs/ref/#state.PluginSpec.state) additional fields.\n*/\nclass EditorState {\n /**\n @internal\n */\n constructor(\n /**\n @internal\n */\n config) {\n this.config = config;\n }\n /**\n The schema of the state's document.\n */\n get schema() {\n return this.config.schema;\n }\n /**\n The plugins that are active in this state.\n */\n get plugins() {\n return this.config.plugins;\n }\n /**\n Apply the given transaction to produce a new state.\n */\n apply(tr) {\n return this.applyTransaction(tr).state;\n }\n /**\n @internal\n */\n filterTransaction(tr, ignore = -1) {\n for (let i = 0; i < this.config.plugins.length; i++)\n if (i != ignore) {\n let plugin = this.config.plugins[i];\n if (plugin.spec.filterTransaction && !plugin.spec.filterTransaction.call(plugin, tr, this))\n return false;\n }\n return true;\n }\n /**\n Verbose variant of [`apply`](https://prosemirror.net/docs/ref/#state.EditorState.apply) that\n returns the precise transactions that were applied (which might\n be influenced by the [transaction\n hooks](https://prosemirror.net/docs/ref/#state.PluginSpec.filterTransaction) of\n plugins) along with the new state.\n */\n applyTransaction(rootTr) {\n if (!this.filterTransaction(rootTr))\n return { state: this, transactions: [] };\n let trs = [rootTr], newState = this.applyInner(rootTr), seen = null;\n // This loop repeatedly gives plugins a chance to respond to\n // transactions as new transactions are added, making sure to only\n // pass the transactions the plugin did not see before.\n for (;;) {\n let haveNew = false;\n for (let i = 0; i < this.config.plugins.length; i++) {\n let plugin = this.config.plugins[i];\n if (plugin.spec.appendTransaction) {\n let n = seen ? seen[i].n : 0, oldState = seen ? seen[i].state : this;\n let tr = n < trs.length &&\n plugin.spec.appendTransaction.call(plugin, n ? trs.slice(n) : trs, oldState, newState);\n if (tr && newState.filterTransaction(tr, i)) {\n tr.setMeta(\"appendedTransaction\", rootTr);\n if (!seen) {\n seen = [];\n for (let j = 0; j < this.config.plugins.length; j++)\n seen.push(j < i ? { state: newState, n: trs.length } : { state: this, n: 0 });\n }\n trs.push(tr);\n newState = newState.applyInner(tr);\n haveNew = true;\n }\n if (seen)\n seen[i] = { state: newState, n: trs.length };\n }\n }\n if (!haveNew)\n return { state: newState, transactions: trs };\n }\n }\n /**\n @internal\n */\n applyInner(tr) {\n if (!tr.before.eq(this.doc))\n throw new RangeError(\"Applying a mismatched transaction\");\n let newInstance = new EditorState(this.config), fields = this.config.fields;\n for (let i = 0; i < fields.length; i++) {\n let field = fields[i];\n newInstance[field.name] = field.apply(tr, this[field.name], this, newInstance);\n }\n return newInstance;\n }\n /**\n Accessor that constructs and returns a new [transaction](https://prosemirror.net/docs/ref/#state.Transaction) from this state.\n */\n get tr() { return new Transaction(this); }\n /**\n Create a new state.\n */\n static create(config) {\n let $config = new Configuration(config.doc ? config.doc.type.schema : config.schema, config.plugins);\n let instance = new EditorState($config);\n for (let i = 0; i < $config.fields.length; i++)\n instance[$config.fields[i].name] = $config.fields[i].init(config, instance);\n return instance;\n }\n /**\n Create a new state based on this one, but with an adjusted set\n of active plugins. State fields that exist in both sets of\n plugins are kept unchanged. Those that no longer exist are\n dropped, and those that are new are initialized using their\n [`init`](https://prosemirror.net/docs/ref/#state.StateField.init) method, passing in the new\n configuration object..\n */\n reconfigure(config) {\n let $config = new Configuration(this.schema, config.plugins);\n let fields = $config.fields, instance = new EditorState($config);\n for (let i = 0; i < fields.length; i++) {\n let name = fields[i].name;\n instance[name] = this.hasOwnProperty(name) ? this[name] : fields[i].init(config, instance);\n }\n return instance;\n }\n /**\n Serialize this state to JSON. If you want to serialize the state\n of plugins, pass an object mapping property names to use in the\n resulting JSON object to plugin objects. The argument may also be\n a string or number, in which case it is ignored, to support the\n way `JSON.stringify` calls `toString` methods.\n */\n toJSON(pluginFields) {\n let result = { doc: this.doc.toJSON(), selection: this.selection.toJSON() };\n if (this.storedMarks)\n result.storedMarks = this.storedMarks.map(m => m.toJSON());\n if (pluginFields && typeof pluginFields == 'object')\n for (let prop in pluginFields) {\n if (prop == \"doc\" || prop == \"selection\")\n throw new RangeError(\"The JSON fields `doc` and `selection` are reserved\");\n let plugin = pluginFields[prop], state = plugin.spec.state;\n if (state && state.toJSON)\n result[prop] = state.toJSON.call(plugin, this[plugin.key]);\n }\n return result;\n }\n /**\n Deserialize a JSON representation of a state. `config` should\n have at least a `schema` field, and should contain array of\n plugins to initialize the state with. `pluginFields` can be used\n to deserialize the state of plugins, by associating plugin\n instances with the property names they use in the JSON object.\n */\n static fromJSON(config, json, pluginFields) {\n if (!json)\n throw new RangeError(\"Invalid input for EditorState.fromJSON\");\n if (!config.schema)\n throw new RangeError(\"Required config field 'schema' missing\");\n let $config = new Configuration(config.schema, config.plugins);\n let instance = new EditorState($config);\n $config.fields.forEach(field => {\n if (field.name == \"doc\") {\n instance.doc = prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Node.fromJSON(config.schema, json.doc);\n }\n else if (field.name == \"selection\") {\n instance.selection = Selection.fromJSON(instance.doc, json.selection);\n }\n else if (field.name == \"storedMarks\") {\n if (json.storedMarks)\n instance.storedMarks = json.storedMarks.map(config.schema.markFromJSON);\n }\n else {\n if (pluginFields)\n for (let prop in pluginFields) {\n let plugin = pluginFields[prop], state = plugin.spec.state;\n if (plugin.key == field.name && state && state.fromJSON &&\n Object.prototype.hasOwnProperty.call(json, prop)) {\n instance[field.name] = state.fromJSON.call(plugin, config, json[prop], instance);\n return;\n }\n }\n instance[field.name] = field.init(config, instance);\n }\n });\n return instance;\n }\n}\n\nfunction bindProps(obj, self, target) {\n for (let prop in obj) {\n let val = obj[prop];\n if (val instanceof Function)\n val = val.bind(self);\n else if (prop == \"handleDOMEvents\")\n val = bindProps(val, self, {});\n target[prop] = val;\n }\n return target;\n}\n/**\nPlugins bundle functionality that can be added to an editor.\nThey are part of the [editor state](https://prosemirror.net/docs/ref/#state.EditorState) and\nmay influence that state and the view that contains it.\n*/\nclass Plugin {\n /**\n Create a plugin.\n */\n constructor(\n /**\n The plugin's [spec object](https://prosemirror.net/docs/ref/#state.PluginSpec).\n */\n spec) {\n this.spec = spec;\n /**\n The [props](https://prosemirror.net/docs/ref/#view.EditorProps) exported by this plugin.\n */\n this.props = {};\n if (spec.props)\n bindProps(spec.props, this, this.props);\n this.key = spec.key ? spec.key.key : createKey(\"plugin\");\n }\n /**\n Extract the plugin's state field from an editor state.\n */\n getState(state) { return state[this.key]; }\n}\nconst keys = Object.create(null);\nfunction createKey(name) {\n if (name in keys)\n return name + \"$\" + ++keys[name];\n keys[name] = 0;\n return name + \"$\";\n}\n/**\nA key is used to [tag](https://prosemirror.net/docs/ref/#state.PluginSpec.key) plugins in a way\nthat makes it possible to find them, given an editor state.\nAssigning a key does mean only one plugin of that type can be\nactive in a state.\n*/\nclass PluginKey {\n /**\n Create a plugin key.\n */\n constructor(name = \"key\") { this.key = createKey(name); }\n /**\n Get the active plugin with this key, if any, from an editor\n state.\n */\n get(state) { return state.config.pluginsByKey[this.key]; }\n /**\n Get the plugin's state from an editor state.\n */\n getState(state) { return state[this.key]; }\n}\n\n\n//# sourceURL=[module]\n//# 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{ Slice, Fragment, Mark, Node } from 'prosemirror-model';\nimport { ReplaceStep, ReplaceAroundStep, Transform } from 'prosemirror-transform';\n\nconst classesById = Object.create(null);\n/**\nSuperclass for editor selections. Every selection type should\nextend this. Should not be instantiated directly.\n*/\nclass Selection {\n    /**\n    Initialize a selection with the head and anchor and ranges. If no\n    ranges are given, constructs a single range across `$anchor` and\n    `$head`.\n    */\n    constructor(\n    /**\n    The resolved anchor of the selection (the side that stays in\n    place when the selection is modified).\n    */\n    $anchor, \n    /**\n    The resolved head of the selection (the side that moves when\n    the selection is modified).\n    */\n    $head, ranges) {\n        this.$anchor = $anchor;\n        this.$head = $head;\n        this.ranges = ranges || [new SelectionRange($anchor.min($head), $anchor.max($head))];\n    }\n    /**\n    The selection's anchor, as an unresolved position.\n    */\n    get anchor() { return this.$anchor.pos; }\n    /**\n    The selection's head.\n    */\n    get head() { return this.$head.pos; }\n    /**\n    The lower bound of the selection's main range.\n    */\n    get from() { return this.$from.pos; }\n    /**\n    The upper bound of the selection's main range.\n    */\n    get to() { return this.$to.pos; }\n    /**\n    The resolved lower  bound of the selection's main range.\n    */\n    get $from() {\n        return this.ranges[0].$from;\n    }\n    /**\n    The resolved upper bound of the selection's main range.\n    */\n    get $to() {\n        return this.ranges[0].$to;\n    }\n    /**\n    Indicates whether the selection contains any content.\n    */\n    get empty() {\n        let ranges = this.ranges;\n        for (let i = 0; i < ranges.length; i++)\n            if (ranges[i].$from.pos != ranges[i].$to.pos)\n                return false;\n        return true;\n    }\n    /**\n    Get the content of this selection as a slice.\n    */\n    content() {\n        return this.$from.doc.slice(this.from, this.to, true);\n    }\n    /**\n    Replace the selection with a slice or, if no slice is given,\n    delete the selection. Will append to the given transaction.\n    */\n    replace(tr, content = Slice.empty) {\n        // Put the new selection at the position after the inserted\n        // content. When that ended in an inline node, search backwards,\n        // to get the position after that node. If not, search forward.\n        let lastNode = content.content.lastChild, lastParent = null;\n        for (let i = 0; i < content.openEnd; i++) {\n            lastParent = lastNode;\n            lastNode = lastNode.lastChild;\n        }\n        let mapFrom = tr.steps.length, ranges = this.ranges;\n        for (let i = 0; i < ranges.length; i++) {\n            let { $from, $to } = ranges[i], mapping = tr.mapping.slice(mapFrom);\n            tr.replaceRange(mapping.map($from.pos), mapping.map($to.pos), i ? Slice.empty : content);\n            if (i == 0)\n                selectionToInsertionEnd(tr, mapFrom, (lastNode ? lastNode.isInline : lastParent && lastParent.isTextblock) ? -1 : 1);\n        }\n    }\n    /**\n    Replace the selection with the given node, appending the changes\n    to the given transaction.\n    */\n    replaceWith(tr, node) {\n        let mapFrom = tr.steps.length, ranges = this.ranges;\n        for (let i = 0; i < ranges.length; i++) {\n            let { $from, $to } = ranges[i], mapping = tr.mapping.slice(mapFrom);\n            let from = mapping.map($from.pos), to = mapping.map($to.pos);\n            if (i) {\n                tr.deleteRange(from, to);\n            }\n            else {\n                tr.replaceRangeWith(from, to, node);\n                selectionToInsertionEnd(tr, mapFrom, node.isInline ? -1 : 1);\n            }\n        }\n    }\n    /**\n    Find a valid cursor or leaf node selection starting at the given\n    position and searching back if `dir` is negative, and forward if\n    positive. When `textOnly` is true, only consider cursor\n    selections. Will return null when no valid selection position is\n    found.\n    */\n    static findFrom($pos, dir, textOnly = false) {\n        let inner = $pos.parent.inlineContent ? new TextSelection($pos)\n            : findSelectionIn($pos.node(0), $pos.parent, $pos.pos, $pos.index(), dir, textOnly);\n        if (inner)\n            return inner;\n        for (let depth = $pos.depth - 1; depth >= 0; depth--) {\n            let found = dir < 0\n                ? findSelectionIn($pos.node(0), $pos.node(depth), $pos.before(depth + 1), $pos.index(depth), dir, textOnly)\n                : findSelectionIn($pos.node(0), $pos.node(depth), $pos.after(depth + 1), $pos.index(depth) + 1, dir, textOnly);\n            if (found)\n                return found;\n        }\n        return null;\n    }\n    /**\n    Find a valid cursor or leaf node selection near the given\n    position. Searches forward first by default, but if `bias` is\n    negative, it will search backwards first.\n    */\n    static near($pos, bias = 1) {\n        return this.findFrom($pos, bias) || this.findFrom($pos, -bias) || new AllSelection($pos.node(0));\n    }\n    /**\n    Find the cursor or leaf node selection closest to the start of\n    the given document. Will return an\n    [`AllSelection`](https://prosemirror.net/docs/ref/#state.AllSelection) if no valid position\n    exists.\n    */\n    static atStart(doc) {\n        return findSelectionIn(doc, doc, 0, 0, 1) || new AllSelection(doc);\n    }\n    /**\n    Find the cursor or leaf node selection closest to the end of the\n    given document.\n    */\n    static atEnd(doc) {\n        return findSelectionIn(doc, doc, doc.content.size, doc.childCount, -1) || new AllSelection(doc);\n    }\n    /**\n    Deserialize the JSON representation of a selection. Must be\n    implemented for custom classes (as a static class method).\n    */\n    static fromJSON(doc, json) {\n        if (!json || !json.type)\n            throw new RangeError(\"Invalid input for Selection.fromJSON\");\n        let cls = classesById[json.type];\n        if (!cls)\n            throw new RangeError(`No selection type ${json.type} defined`);\n        return cls.fromJSON(doc, json);\n    }\n    /**\n    To be able to deserialize selections from JSON, custom selection\n    classes must register themselves with an ID string, so that they\n    can be disambiguated. Try to pick something that's unlikely to\n    clash with classes from other modules.\n    */\n    static jsonID(id, selectionClass) {\n        if (id in classesById)\n            throw new RangeError(\"Duplicate use of selection JSON ID \" + id);\n        classesById[id] = selectionClass;\n        selectionClass.prototype.jsonID = id;\n        return selectionClass;\n    }\n    /**\n    Get a [bookmark](https://prosemirror.net/docs/ref/#state.SelectionBookmark) for this selection,\n    which is a value that can be mapped without having access to a\n    current document, and later resolved to a real selection for a\n    given document again. (This is used mostly by the history to\n    track and restore old selections.) The default implementation of\n    this method just converts the selection to a text selection and\n    returns the bookmark for that.\n    */\n    getBookmark() {\n        return TextSelection.between(this.$anchor, this.$head).getBookmark();\n    }\n}\nSelection.prototype.visible = true;\n/**\nRepresents a selected range in a document.\n*/\nclass SelectionRange {\n    /**\n    Create a range.\n    */\n    constructor(\n    /**\n    The lower bound of the range.\n    */\n    $from, \n    /**\n    The upper bound of the range.\n    */\n    $to) {\n        this.$from = $from;\n        this.$to = $to;\n    }\n}\nlet warnedAboutTextSelection = false;\nfunction checkTextSelection($pos) {\n    if (!warnedAboutTextSelection && !$pos.parent.inlineContent) {\n        warnedAboutTextSelection = true;\n        console[\"warn\"](\"TextSelection endpoint not pointing into a node with inline content (\" + $pos.parent.type.name + \")\");\n    }\n}\n/**\nA text selection represents a classical editor selection, with a\nhead (the moving side) and anchor (immobile side), both of which\npoint into textblock nodes. It can be empty (a regular cursor\nposition).\n*/\nclass TextSelection extends Selection {\n    /**\n    Construct a text selection between the given points.\n    */\n    constructor($anchor, $head = $anchor) {\n        checkTextSelection($anchor);\n        checkTextSelection($head);\n        super($anchor, $head);\n    }\n    /**\n    Returns a resolved position if this is a cursor selection (an\n    empty text selection), and null otherwise.\n    */\n    get $cursor() { return this.$anchor.pos == this.$head.pos ? this.$head : null; }\n    map(doc, mapping) {\n        let $head = doc.resolve(mapping.map(this.head));\n        if (!$head.parent.inlineContent)\n            return Selection.near($head);\n        let $anchor = doc.resolve(mapping.map(this.anchor));\n        return new TextSelection($anchor.parent.inlineContent ? $anchor : $head, $head);\n    }\n    replace(tr, content = Slice.empty) {\n        super.replace(tr, content);\n        if (content == Slice.empty) {\n            let marks = this.$from.marksAcross(this.$to);\n            if (marks)\n                tr.ensureMarks(marks);\n        }\n    }\n    eq(other) {\n        return other instanceof TextSelection && other.anchor == this.anchor && other.head == this.head;\n    }\n    getBookmark() {\n        return new TextBookmark(this.anchor, this.head);\n    }\n    toJSON() {\n        return { type: \"text\", anchor: this.anchor, head: this.head };\n    }\n    /**\n    @internal\n    */\n    static fromJSON(doc, json) {\n        if (typeof json.anchor != \"number\" || typeof json.head != \"number\")\n            throw new RangeError(\"Invalid input for TextSelection.fromJSON\");\n        return new TextSelection(doc.resolve(json.anchor), doc.resolve(json.head));\n    }\n    /**\n    Create a text selection from non-resolved positions.\n    */\n    static create(doc, anchor, head = anchor) {\n        let $anchor = doc.resolve(anchor);\n        return new this($anchor, head == anchor ? $anchor : doc.resolve(head));\n    }\n    /**\n    Return a text selection that spans the given positions or, if\n    they aren't text positions, find a text selection near them.\n    `bias` determines whether the method searches forward (default)\n    or backwards (negative number) first. Will fall back to calling\n    [`Selection.near`](https://prosemirror.net/docs/ref/#state.Selection^near) when the document\n    doesn't contain a valid text position.\n    */\n    static between($anchor, $head, bias) {\n        let dPos = $anchor.pos - $head.pos;\n        if (!bias || dPos)\n            bias = dPos >= 0 ? 1 : -1;\n        if (!$head.parent.inlineContent) {\n            let found = Selection.findFrom($head, bias, true) || Selection.findFrom($head, -bias, true);\n            if (found)\n                $head = found.$head;\n            else\n                return Selection.near($head, bias);\n        }\n        if (!$anchor.parent.inlineContent) {\n            if (dPos == 0) {\n                $anchor = $head;\n            }\n            else {\n                $anchor = (Selection.findFrom($anchor, -bias, true) || Selection.findFrom($anchor, bias, true)).$anchor;\n                if (($anchor.pos < $head.pos) != (dPos < 0))\n                    $anchor = $head;\n            }\n        }\n        return new TextSelection($anchor, $head);\n    }\n}\nSelection.jsonID(\"text\", TextSelection);\nclass TextBookmark {\n    constructor(anchor, head) {\n        this.anchor = anchor;\n        this.head = head;\n    }\n    map(mapping) {\n        return new TextBookmark(mapping.map(this.anchor), mapping.map(this.head));\n    }\n    resolve(doc) {\n        return TextSelection.between(doc.resolve(this.anchor), doc.resolve(this.head));\n    }\n}\n/**\nA node selection is a selection that points at a single node. All\nnodes marked [selectable](https://prosemirror.net/docs/ref/#model.NodeSpec.selectable) can be the\ntarget of a node selection. In such a selection, `from` and `to`\npoint directly before and after the selected node, `anchor` equals\n`from`, and `head` equals `to`..\n*/\nclass NodeSelection extends Selection {\n    /**\n    Create a node selection. Does not verify the validity of its\n    argument.\n    */\n    constructor($pos) {\n        let node = $pos.nodeAfter;\n        let $end = $pos.node(0).resolve($pos.pos + node.nodeSize);\n        super($pos, $end);\n        this.node = node;\n    }\n    map(doc, mapping) {\n        let { deleted, pos } = mapping.mapResult(this.anchor);\n        let $pos = doc.resolve(pos);\n        if (deleted)\n            return Selection.near($pos);\n        return new NodeSelection($pos);\n    }\n    content() {\n        return new Slice(Fragment.from(this.node), 0, 0);\n    }\n    eq(other) {\n        return other instanceof NodeSelection && other.anchor == this.anchor;\n    }\n    toJSON() {\n        return { type: \"node\", anchor: this.anchor };\n    }\n    getBookmark() { return new NodeBookmark(this.anchor); }\n    /**\n    @internal\n    */\n    static fromJSON(doc, json) {\n        if (typeof json.anchor != \"number\")\n            throw new RangeError(\"Invalid input for NodeSelection.fromJSON\");\n        return new NodeSelection(doc.resolve(json.anchor));\n    }\n    /**\n    Create a node selection from non-resolved positions.\n    */\n    static create(doc, from) {\n        return new NodeSelection(doc.resolve(from));\n    }\n    /**\n    Determines whether the given node may be selected as a node\n    selection.\n    */\n    static isSelectable(node) {\n        return !node.isText && node.type.spec.selectable !== false;\n    }\n}\nNodeSelection.prototype.visible = false;\nSelection.jsonID(\"node\", NodeSelection);\nclass NodeBookmark {\n    constructor(anchor) {\n        this.anchor = anchor;\n    }\n    map(mapping) {\n        let { deleted, pos } = mapping.mapResult(this.anchor);\n        return deleted ? new TextBookmark(pos, pos) : new NodeBookmark(pos);\n    }\n    resolve(doc) {\n        let $pos = doc.resolve(this.anchor), node = $pos.nodeAfter;\n        if (node && NodeSelection.isSelectable(node))\n            return new NodeSelection($pos);\n        return Selection.near($pos);\n    }\n}\n/**\nA selection type that represents selecting the whole document\n(which can not necessarily be expressed with a text selection, when\nthere are for example leaf block nodes at the start or end of the\ndocument).\n*/\nclass AllSelection extends Selection {\n    /**\n    Create an all-selection over the given document.\n    */\n    constructor(doc) {\n        super(doc.resolve(0), doc.resolve(doc.content.size));\n    }\n    replace(tr, content = Slice.empty) {\n        if (content == Slice.empty) {\n            tr.delete(0, tr.doc.content.size);\n            let sel = Selection.atStart(tr.doc);\n            if (!sel.eq(tr.selection))\n                tr.setSelection(sel);\n        }\n        else {\n            super.replace(tr, content);\n        }\n    }\n    toJSON() { return { type: \"all\" }; }\n    /**\n    @internal\n    */\n    static fromJSON(doc) { return new AllSelection(doc); }\n    map(doc) { return new AllSelection(doc); }\n    eq(other) { return other instanceof AllSelection; }\n    getBookmark() { return AllBookmark; }\n}\nSelection.jsonID(\"all\", AllSelection);\nconst AllBookmark = {\n    map() { return this; },\n    resolve(doc) { return new AllSelection(doc); }\n};\n// FIXME we'll need some awareness of text direction when scanning for selections\n// Try to find a selection inside the given node. `pos` points at the\n// position where the search starts. When `text` is true, only return\n// text selections.\nfunction findSelectionIn(doc, node, pos, index, dir, text = false) {\n    if (node.inlineContent)\n        return TextSelection.create(doc, pos);\n    for (let i = index - (dir > 0 ? 0 : 1); dir > 0 ? i < node.childCount : i >= 0; i += dir) {\n        let child = node.child(i);\n        if (!child.isAtom) {\n            let inner = findSelectionIn(doc, child, pos + dir, dir < 0 ? child.childCount : 0, dir, text);\n            if (inner)\n                return inner;\n        }\n        else if (!text && NodeSelection.isSelectable(child)) {\n            return NodeSelection.create(doc, pos - (dir < 0 ? child.nodeSize : 0));\n        }\n        pos += child.nodeSize * dir;\n    }\n    return null;\n}\nfunction selectionToInsertionEnd(tr, startLen, bias) {\n    let last = tr.steps.length - 1;\n    if (last < startLen)\n        return;\n    let step = tr.steps[last];\n    if (!(step instanceof ReplaceStep || step instanceof ReplaceAroundStep))\n        return;\n    let map = tr.mapping.maps[last], end;\n    map.forEach((_from, _to, _newFrom, newTo) => { if (end == null)\n        end = newTo; });\n    tr.setSelection(Selection.near(tr.doc.resolve(end), bias));\n}\n\nconst UPDATED_SEL = 1, UPDATED_MARKS = 2, UPDATED_SCROLL = 4;\n/**\nAn editor state transaction, which can be applied to a state to\ncreate an updated state. Use\n[`EditorState.tr`](https://prosemirror.net/docs/ref/#state.EditorState.tr) to create an instance.\n\nTransactions track changes to the document (they are a subclass of\n[`Transform`](https://prosemirror.net/docs/ref/#transform.Transform)), but also other state changes,\nlike selection updates and adjustments of the set of [stored\nmarks](https://prosemirror.net/docs/ref/#state.EditorState.storedMarks). In addition, you can store\nmetadata properties in a transaction, which are extra pieces of\ninformation that client code or plugins can use to describe what a\ntransaction represents, so that they can update their [own\nstate](https://prosemirror.net/docs/ref/#state.StateField) accordingly.\n\nThe [editor view](https://prosemirror.net/docs/ref/#view.EditorView) uses a few metadata\nproperties: it will attach a property `\"pointer\"` with the value\n`true` to selection transactions directly caused by mouse or touch\ninput, a `\"composition\"` property holding an ID identifying the\ncomposition that caused it to transactions caused by composed DOM\ninput, and a `\"uiEvent\"` property of that may be `\"paste\"`,\n`\"cut\"`, or `\"drop\"`.\n*/\nclass Transaction extends Transform {\n    /**\n    @internal\n    */\n    constructor(state) {\n        super(state.doc);\n        // The step count for which the current selection is valid.\n        this.curSelectionFor = 0;\n        // Bitfield to track which aspects of the state were updated by\n        // this transaction.\n        this.updated = 0;\n        // Object used to store metadata properties for the transaction.\n        this.meta = Object.create(null);\n        this.time = Date.now();\n        this.curSelection = state.selection;\n        this.storedMarks = state.storedMarks;\n    }\n    /**\n    The transaction's current selection. This defaults to the editor\n    selection [mapped](https://prosemirror.net/docs/ref/#state.Selection.map) through the steps in the\n    transaction, but can be overwritten with\n    [`setSelection`](https://prosemirror.net/docs/ref/#state.Transaction.setSelection).\n    */\n    get selection() {\n        if (this.curSelectionFor < this.steps.length) {\n            this.curSelection = this.curSelection.map(this.doc, this.mapping.slice(this.curSelectionFor));\n            this.curSelectionFor = this.steps.length;\n        }\n        return this.curSelection;\n    }\n    /**\n    Update the transaction's current selection. Will determine the\n    selection that the editor gets when the transaction is applied.\n    */\n    setSelection(selection) {\n        if (selection.$from.doc != this.doc)\n            throw new RangeError(\"Selection passed to setSelection must point at the current document\");\n        this.curSelection = selection;\n        this.curSelectionFor = this.steps.length;\n        this.updated = (this.updated | UPDATED_SEL) & ~UPDATED_MARKS;\n        this.storedMarks = null;\n        return this;\n    }\n    /**\n    Whether the selection was explicitly updated by this transaction.\n    */\n    get selectionSet() {\n        return (this.updated & UPDATED_SEL) > 0;\n    }\n    /**\n    Set the current stored marks.\n    */\n    setStoredMarks(marks) {\n        this.storedMarks = marks;\n        this.updated |= UPDATED_MARKS;\n        return this;\n    }\n    /**\n    Make sure the current stored marks or, if that is null, the marks\n    at the selection, match the given set of marks. Does nothing if\n    this is already the case.\n    */\n    ensureMarks(marks) {\n        if (!Mark.sameSet(this.storedMarks || this.selection.$from.marks(), marks))\n            this.setStoredMarks(marks);\n        return this;\n    }\n    /**\n    Add a mark to the set of stored marks.\n    */\n    addStoredMark(mark) {\n        return this.ensureMarks(mark.addToSet(this.storedMarks || this.selection.$head.marks()));\n    }\n    /**\n    Remove a mark or mark type from the set of stored marks.\n    */\n    removeStoredMark(mark) {\n        return this.ensureMarks(mark.removeFromSet(this.storedMarks || this.selection.$head.marks()));\n    }\n    /**\n    Whether the stored marks were explicitly set for this transaction.\n    */\n    get storedMarksSet() {\n        return (this.updated & UPDATED_MARKS) > 0;\n    }\n    /**\n    @internal\n    */\n    addStep(step, doc) {\n        super.addStep(step, doc);\n        this.updated = this.updated & ~UPDATED_MARKS;\n        this.storedMarks = null;\n    }\n    /**\n    Update the timestamp for the transaction.\n    */\n    setTime(time) {\n        this.time = time;\n        return this;\n    }\n    /**\n    Replace the current selection with the given slice.\n    */\n    replaceSelection(slice) {\n        this.selection.replace(this, slice);\n        return this;\n    }\n    /**\n    Replace the selection with the given node. When `inheritMarks` is\n    true and the content is inline, it inherits the marks from the\n    place where it is inserted.\n    */\n    replaceSelectionWith(node, inheritMarks = true) {\n        let selection = this.selection;\n        if (inheritMarks)\n            node = node.mark(this.storedMarks || (selection.empty ? selection.$from.marks() : (selection.$from.marksAcross(selection.$to) || Mark.none)));\n        selection.replaceWith(this, node);\n        return this;\n    }\n    /**\n    Delete the selection.\n    */\n    deleteSelection() {\n        this.selection.replace(this);\n        return this;\n    }\n    /**\n    Replace the given range, or the selection if no range is given,\n    with a text node containing the given string.\n    */\n    insertText(text, from, to) {\n        let schema = this.doc.type.schema;\n        if (from == null) {\n            if (!text)\n                return this.deleteSelection();\n            return this.replaceSelectionWith(schema.text(text), true);\n        }\n        else {\n            if (to == null)\n                to = from;\n            if (!text)\n                return this.deleteRange(from, to);\n            let marks = this.storedMarks;\n            if (!marks) {\n                let $from = this.doc.resolve(from);\n                marks = to == from ? $from.marks() : $from.marksAcross(this.doc.resolve(to));\n            }\n            this.replaceRangeWith(from, to, schema.text(text, marks));\n            if (!this.selection.empty && this.selection.to == from + text.length)\n                this.setSelection(Selection.near(this.selection.$to));\n            return this;\n        }\n    }\n    /**\n    Store a metadata property in this transaction, keyed either by\n    name or by plugin.\n    */\n    setMeta(key, value) {\n        this.meta[typeof key == \"string\" ? key : key.key] = value;\n        return this;\n    }\n    /**\n    Retrieve a metadata property for a given name or plugin.\n    */\n    getMeta(key) {\n        return this.meta[typeof key == \"string\" ? key : key.key];\n    }\n    /**\n    Returns true if this transaction doesn't contain any metadata,\n    and can thus safely be extended.\n    */\n    get isGeneric() {\n        for (let _ in this.meta)\n            return false;\n        return true;\n    }\n    /**\n    Indicate that the editor should scroll the selection into view\n    when updated to the state produced by this transaction.\n    */\n    scrollIntoView() {\n        this.updated |= UPDATED_SCROLL;\n        return this;\n    }\n    /**\n    True when this transaction has had `scrollIntoView` called on it.\n    */\n    get scrolledIntoView() {\n        return (this.updated & UPDATED_SCROLL) > 0;\n    }\n}\n\nfunction bind(f, self) {\n    return !self || !f ? f : f.bind(self);\n}\nclass FieldDesc {\n    constructor(name, desc, self) {\n        this.name = name;\n        this.init = bind(desc.init, self);\n        this.apply = bind(desc.apply, self);\n    }\n}\nconst baseFields = [\n    new FieldDesc(\"doc\", {\n        init(config) { return config.doc || config.schema.topNodeType.createAndFill(); },\n        apply(tr) { return tr.doc; }\n    }),\n    new FieldDesc(\"selection\", {\n        init(config, instance) { return config.selection || Selection.atStart(instance.doc); },\n        apply(tr) { return tr.selection; }\n    }),\n    new FieldDesc(\"storedMarks\", {\n        init(config) { return config.storedMarks || null; },\n        apply(tr, _marks, _old, state) { return state.selection.$cursor ? tr.storedMarks : null; }\n    }),\n    new FieldDesc(\"scrollToSelection\", {\n        init() { return 0; },\n        apply(tr, prev) { return tr.scrolledIntoView ? prev + 1 : prev; }\n    })\n];\n// Object wrapping the part of a state object that stays the same\n// across transactions. Stored in the state's `config` property.\nclass Configuration {\n    constructor(schema, plugins) {\n        this.schema = schema;\n        this.plugins = [];\n        this.pluginsByKey = Object.create(null);\n        this.fields = baseFields.slice();\n        if (plugins)\n            plugins.forEach(plugin => {\n                if (this.pluginsByKey[plugin.key])\n                    throw new RangeError(\"Adding different instances of a keyed plugin (\" + plugin.key + \")\");\n                this.plugins.push(plugin);\n                this.pluginsByKey[plugin.key] = plugin;\n                if (plugin.spec.state)\n                    this.fields.push(new FieldDesc(plugin.key, plugin.spec.state, plugin));\n            });\n    }\n}\n/**\nThe state of a ProseMirror editor is represented by an object of\nthis type. A state is a persistent data structure—it isn't\nupdated, but rather a new state value is computed from an old one\nusing the [`apply`](https://prosemirror.net/docs/ref/#state.EditorState.apply) method.\n\nA state holds a number of built-in fields, and plugins can\n[define](https://prosemirror.net/docs/ref/#state.PluginSpec.state) additional fields.\n*/\nclass EditorState {\n    /**\n    @internal\n    */\n    constructor(\n    /**\n    @internal\n    */\n    config) {\n        this.config = config;\n    }\n    /**\n    The schema of the state's document.\n    */\n    get schema() {\n        return this.config.schema;\n    }\n    /**\n    The plugins that are active in this state.\n    */\n    get plugins() {\n        return this.config.plugins;\n    }\n    /**\n    Apply the given transaction to produce a new state.\n    */\n    apply(tr) {\n        return this.applyTransaction(tr).state;\n    }\n    /**\n    @internal\n    */\n    filterTransaction(tr, ignore = -1) {\n        for (let i = 0; i < this.config.plugins.length; i++)\n            if (i != ignore) {\n                let plugin = this.config.plugins[i];\n                if (plugin.spec.filterTransaction && !plugin.spec.filterTransaction.call(plugin, tr, this))\n                    return false;\n            }\n        return true;\n    }\n    /**\n    Verbose variant of [`apply`](https://prosemirror.net/docs/ref/#state.EditorState.apply) that\n    returns the precise transactions that were applied (which might\n    be influenced by the [transaction\n    hooks](https://prosemirror.net/docs/ref/#state.PluginSpec.filterTransaction) of\n    plugins) along with the new state.\n    */\n    applyTransaction(rootTr) {\n        if (!this.filterTransaction(rootTr))\n            return { state: this, transactions: [] };\n        let trs = [rootTr], newState = this.applyInner(rootTr), seen = null;\n        // This loop repeatedly gives plugins a chance to respond to\n        // transactions as new transactions are added, making sure to only\n        // pass the transactions the plugin did not see before.\n        for (;;) {\n            let haveNew = false;\n            for (let i = 0; i < this.config.plugins.length; i++) {\n                let plugin = this.config.plugins[i];\n                if (plugin.spec.appendTransaction) {\n                    let n = seen ? seen[i].n : 0, oldState = seen ? seen[i].state : this;\n                    let tr = n < trs.length &&\n                        plugin.spec.appendTransaction.call(plugin, n ? trs.slice(n) : trs, oldState, newState);\n                    if (tr && newState.filterTransaction(tr, i)) {\n                        tr.setMeta(\"appendedTransaction\", rootTr);\n                        if (!seen) {\n                            seen = [];\n                            for (let j = 0; j < this.config.plugins.length; j++)\n                                seen.push(j < i ? { state: newState, n: trs.length } : { state: this, n: 0 });\n                        }\n                        trs.push(tr);\n                        newState = newState.applyInner(tr);\n                        haveNew = true;\n                    }\n                    if (seen)\n                        seen[i] = { state: newState, n: trs.length };\n                }\n            }\n            if (!haveNew)\n                return { state: newState, transactions: trs };\n        }\n    }\n    /**\n    @internal\n    */\n    applyInner(tr) {\n        if (!tr.before.eq(this.doc))\n            throw new RangeError(\"Applying a mismatched transaction\");\n        let newInstance = new EditorState(this.config), fields = this.config.fields;\n        for (let i = 0; i < fields.length; i++) {\n            let field = fields[i];\n            newInstance[field.name] = field.apply(tr, this[field.name], this, newInstance);\n        }\n        return newInstance;\n    }\n    /**\n    Accessor that constructs and returns a new [transaction](https://prosemirror.net/docs/ref/#state.Transaction) from this state.\n    */\n    get tr() { return new Transaction(this); }\n    /**\n    Create a new state.\n    */\n    static create(config) {\n        let $config = new Configuration(config.doc ? config.doc.type.schema : config.schema, config.plugins);\n        let instance = new EditorState($config);\n        for (let i = 0; i < $config.fields.length; i++)\n            instance[$config.fields[i].name] = $config.fields[i].init(config, instance);\n        return instance;\n    }\n    /**\n    Create a new state based on this one, but with an adjusted set\n    of active plugins. State fields that exist in both sets of\n    plugins are kept unchanged. Those that no longer exist are\n    dropped, and those that are new are initialized using their\n    [`init`](https://prosemirror.net/docs/ref/#state.StateField.init) method, passing in the new\n    configuration object..\n    */\n    reconfigure(config) {\n        let $config = new Configuration(this.schema, config.plugins);\n        let fields = $config.fields, instance = new EditorState($config);\n        for (let i = 0; i < fields.length; i++) {\n            let name = fields[i].name;\n            instance[name] = this.hasOwnProperty(name) ? this[name] : fields[i].init(config, instance);\n        }\n        return instance;\n    }\n    /**\n    Serialize this state to JSON. If you want to serialize the state\n    of plugins, pass an object mapping property names to use in the\n    resulting JSON object to plugin objects. The argument may also be\n    a string or number, in which case it is ignored, to support the\n    way `JSON.stringify` calls `toString` methods.\n    */\n    toJSON(pluginFields) {\n        let result = { doc: this.doc.toJSON(), selection: this.selection.toJSON() };\n        if (this.storedMarks)\n            result.storedMarks = this.storedMarks.map(m => m.toJSON());\n        if (pluginFields && typeof pluginFields == 'object')\n            for (let prop in pluginFields) {\n                if (prop == \"doc\" || prop == \"selection\")\n                    throw new RangeError(\"The JSON fields `doc` and `selection` are reserved\");\n                let plugin = pluginFields[prop], state = plugin.spec.state;\n                if (state && state.toJSON)\n                    result[prop] = state.toJSON.call(plugin, this[plugin.key]);\n            }\n        return result;\n    }\n    /**\n    Deserialize a JSON representation of a state. `config` should\n    have at least a `schema` field, and should contain array of\n    plugins to initialize the state with. `pluginFields` can be used\n    to deserialize the state of plugins, by associating plugin\n    instances with the property names they use in the JSON object.\n    */\n    static fromJSON(config, json, pluginFields) {\n        if (!json)\n            throw new RangeError(\"Invalid input for EditorState.fromJSON\");\n        if (!config.schema)\n            throw new RangeError(\"Required config field 'schema' missing\");\n        let $config = new Configuration(config.schema, config.plugins);\n        let instance = new EditorState($config);\n        $config.fields.forEach(field => {\n            if (field.name == \"doc\") {\n                instance.doc = Node.fromJSON(config.schema, json.doc);\n            }\n            else if (field.name == \"selection\") {\n                instance.selection = Selection.fromJSON(instance.doc, json.selection);\n            }\n            else if (field.name == \"storedMarks\") {\n                if (json.storedMarks)\n                    instance.storedMarks = json.storedMarks.map(config.schema.markFromJSON);\n            }\n            else {\n                if (pluginFields)\n                    for (let prop in pluginFields) {\n                        let plugin = pluginFields[prop], state = plugin.spec.state;\n                        if (plugin.key == field.name && state && state.fromJSON &&\n                            Object.prototype.hasOwnProperty.call(json, prop)) {\n                            instance[field.name] = state.fromJSON.call(plugin, config, json[prop], instance);\n                            return;\n                        }\n                    }\n                instance[field.name] = field.init(config, instance);\n            }\n        });\n        return instance;\n    }\n}\n\nfunction bindProps(obj, self, target) {\n    for (let prop in obj) {\n        let val = obj[prop];\n        if (val instanceof Function)\n            val = val.bind(self);\n        else if (prop == \"handleDOMEvents\")\n            val = bindProps(val, self, {});\n        target[prop] = val;\n    }\n    return target;\n}\n/**\nPlugins bundle functionality that can be added to an editor.\nThey are part of the [editor state](https://prosemirror.net/docs/ref/#state.EditorState) and\nmay influence that state and the view that contains it.\n*/\nclass Plugin {\n    /**\n    Create a plugin.\n    */\n    constructor(\n    /**\n    The plugin's [spec object](https://prosemirror.net/docs/ref/#state.PluginSpec).\n    */\n    spec) {\n        this.spec = spec;\n        /**\n        The [props](https://prosemirror.net/docs/ref/#view.EditorProps) exported by this plugin.\n        */\n        this.props = {};\n        if (spec.props)\n            bindProps(spec.props, this, this.props);\n        this.key = spec.key ? spec.key.key : createKey(\"plugin\");\n    }\n    /**\n    Extract the plugin's state field from an editor state.\n    */\n    getState(state) { return state[this.key]; }\n}\nconst keys = Object.create(null);\nfunction createKey(name) {\n    if (name in keys)\n        return name + \"$\" + ++keys[name];\n    keys[name] = 0;\n    return name + \"$\";\n}\n/**\nA key is used to [tag](https://prosemirror.net/docs/ref/#state.PluginSpec.key) plugins in a way\nthat makes it possible to find them, given an editor state.\nAssigning a key does mean only one plugin of that type can be\nactive in a state.\n*/\nclass PluginKey {\n    /**\n    Create a plugin key.\n    */\n    constructor(name = \"key\") { this.key = createKey(name); }\n    /**\n    Get the active plugin with this key, if any, from an editor\n    state.\n    */\n    get(state) { return state.config.pluginsByKey[this.key]; }\n    /**\n    Get the plugin's state from an editor state.\n    */\n    getState(state) { return state[this.key]; }\n}\n\nexport { AllSelection, EditorState, NodeSelection, Plugin, PluginKey, Selection, SelectionRange, TextSelection, Transaction };\n"],"names":[],"ignoreList":[0],"sourceRoot":""}\n//# sourceURL=webpack-internal:///(ssr)/./node_modules/prosemirror-state/dist/index.js\n");
-
-/***/ })
-
-};
-;
\ No newline at end of file
diff --git a/.next/server/vendor-chunks/prosemirror-transform.js b/.next/server/vendor-chunks/prosemirror-transform.js
deleted file mode 100644
index 51fcfb3..0000000
--- a/.next/server/vendor-chunks/prosemirror-transform.js
+++ /dev/null
@@ -1,25 +0,0 @@
-"use strict";
-/*
- * ATTENTION: An "eval-source-map" devtool has been used.
- * This devtool is neither made for production nor for readable output files.
- * It uses "eval()" calls to create a separate source file with attached SourceMaps in the browser devtools.
- * If you are trying to read the output file, select a different devtool (https://webpack.js.org/configuration/devtool/)
- * or disable the default devtool with "devtool: false".
- * If you are looking for production-ready output files, see mode: "production" (https://webpack.js.org/configuration/mode/).
- */
-exports.id = "vendor-chunks/prosemirror-transform";
-exports.ids = ["vendor-chunks/prosemirror-transform"];
-exports.modules = {
-
-/***/ "(ssr)/./node_modules/prosemirror-transform/dist/index.js":
-/*!**********************************************************!*\
- !*** ./node_modules/prosemirror-transform/dist/index.js ***!
- \**********************************************************/
-/***/ ((__unused_webpack___webpack_module__, __webpack_exports__, __webpack_require__) => {
-
-eval("__webpack_require__.r(__webpack_exports__);\n/* harmony export */ __webpack_require__.d(__webpack_exports__, {\n/* harmony export */ AddMarkStep: () => (/* binding */ AddMarkStep),\n/* harmony export */ AddNodeMarkStep: () => (/* binding */ AddNodeMarkStep),\n/* harmony export */ AttrStep: () => (/* binding */ AttrStep),\n/* harmony export */ DocAttrStep: () => (/* binding */ DocAttrStep),\n/* harmony export */ MapResult: () => (/* binding */ MapResult),\n/* harmony export */ Mapping: () => (/* binding */ Mapping),\n/* harmony export */ RemoveMarkStep: () => (/* binding */ RemoveMarkStep),\n/* harmony export */ RemoveNodeMarkStep: () => (/* binding */ RemoveNodeMarkStep),\n/* harmony export */ ReplaceAroundStep: () => (/* binding */ ReplaceAroundStep),\n/* harmony export */ ReplaceStep: () => (/* binding */ ReplaceStep),\n/* harmony export */ Step: () => (/* binding */ Step),\n/* harmony export */ StepMap: () => (/* binding */ StepMap),\n/* harmony export */ StepResult: () => (/* binding */ StepResult),\n/* harmony export */ Transform: () => (/* binding */ Transform),\n/* harmony export */ TransformError: () => (/* binding */ TransformError),\n/* harmony export */ canJoin: () => (/* binding */ canJoin),\n/* harmony export */ canSplit: () => (/* binding */ canSplit),\n/* harmony export */ dropPoint: () => (/* binding */ dropPoint),\n/* harmony export */ findWrapping: () => (/* binding */ findWrapping),\n/* harmony export */ insertPoint: () => (/* binding */ insertPoint),\n/* harmony export */ joinPoint: () => (/* binding */ joinPoint),\n/* harmony export */ liftTarget: () => (/* binding */ liftTarget),\n/* harmony export */ replaceStep: () => (/* binding */ replaceStep)\n/* harmony export */ });\n/* harmony import */ var prosemirror_model__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! prosemirror-model */ \"(ssr)/./node_modules/prosemirror-model/dist/index.js\");\n\n\n// Recovery values encode a range index and an offset. They are\n// represented as numbers, because tons of them will be created when\n// mapping, for example, a large number of decorations. The number's\n// lower 16 bits provide the index, the remaining bits the offset.\n//\n// Note: We intentionally don't use bit shift operators to en- and\n// decode these, since those clip to 32 bits, which we might in rare\n// cases want to overflow. A 64-bit float can represent 48-bit\n// integers precisely.\nconst lower16 = 0xffff;\nconst factor16 = Math.pow(2, 16);\nfunction makeRecover(index, offset) { return index + offset * factor16; }\nfunction recoverIndex(value) { return value & lower16; }\nfunction recoverOffset(value) { return (value - (value & lower16)) / factor16; }\nconst DEL_BEFORE = 1, DEL_AFTER = 2, DEL_ACROSS = 4, DEL_SIDE = 8;\n/**\nAn object representing a mapped position with extra\ninformation.\n*/\nclass MapResult {\n /**\n @internal\n */\n constructor(\n /**\n The mapped version of the position.\n */\n pos, \n /**\n @internal\n */\n delInfo, \n /**\n @internal\n */\n recover) {\n this.pos = pos;\n this.delInfo = delInfo;\n this.recover = recover;\n }\n /**\n Tells you whether the position was deleted, that is, whether the\n step removed the token on the side queried (via the `assoc`)\n argument from the document.\n */\n get deleted() { return (this.delInfo & DEL_SIDE) > 0; }\n /**\n Tells you whether the token before the mapped position was deleted.\n */\n get deletedBefore() { return (this.delInfo & (DEL_BEFORE | DEL_ACROSS)) > 0; }\n /**\n True when the token after the mapped position was deleted.\n */\n get deletedAfter() { return (this.delInfo & (DEL_AFTER | DEL_ACROSS)) > 0; }\n /**\n Tells whether any of the steps mapped through deletes across the\n position (including both the token before and after the\n position).\n */\n get deletedAcross() { return (this.delInfo & DEL_ACROSS) > 0; }\n}\n/**\nA map describing the deletions and insertions made by a step, which\ncan be used to find the correspondence between positions in the\npre-step version of a document and the same position in the\npost-step version.\n*/\nclass StepMap {\n /**\n Create a position map. The modifications to the document are\n represented as an array of numbers, in which each group of three\n represents a modified chunk as `[start, oldSize, newSize]`.\n */\n constructor(\n /**\n @internal\n */\n ranges, \n /**\n @internal\n */\n inverted = false) {\n this.ranges = ranges;\n this.inverted = inverted;\n if (!ranges.length && StepMap.empty)\n return StepMap.empty;\n }\n /**\n @internal\n */\n recover(value) {\n let diff = 0, index = recoverIndex(value);\n if (!this.inverted)\n for (let i = 0; i < index; i++)\n diff += this.ranges[i * 3 + 2] - this.ranges[i * 3 + 1];\n return this.ranges[index * 3] + diff + recoverOffset(value);\n }\n mapResult(pos, assoc = 1) { return this._map(pos, assoc, false); }\n map(pos, assoc = 1) { return this._map(pos, assoc, true); }\n /**\n @internal\n */\n _map(pos, assoc, simple) {\n let diff = 0, oldIndex = this.inverted ? 2 : 1, newIndex = this.inverted ? 1 : 2;\n for (let i = 0; i < this.ranges.length; i += 3) {\n let start = this.ranges[i] - (this.inverted ? diff : 0);\n if (start > pos)\n break;\n let oldSize = this.ranges[i + oldIndex], newSize = this.ranges[i + newIndex], end = start + oldSize;\n if (pos <= end) {\n let side = !oldSize ? assoc : pos == start ? -1 : pos == end ? 1 : assoc;\n let result = start + diff + (side < 0 ? 0 : newSize);\n if (simple)\n return result;\n let recover = pos == (assoc < 0 ? start : end) ? null : makeRecover(i / 3, pos - start);\n let del = pos == start ? DEL_AFTER : pos == end ? DEL_BEFORE : DEL_ACROSS;\n if (assoc < 0 ? pos != start : pos != end)\n del |= DEL_SIDE;\n return new MapResult(result, del, recover);\n }\n diff += newSize - oldSize;\n }\n return simple ? pos + diff : new MapResult(pos + diff, 0, null);\n }\n /**\n @internal\n */\n touches(pos, recover) {\n let diff = 0, index = recoverIndex(recover);\n let oldIndex = this.inverted ? 2 : 1, newIndex = this.inverted ? 1 : 2;\n for (let i = 0; i < this.ranges.length; i += 3) {\n let start = this.ranges[i] - (this.inverted ? diff : 0);\n if (start > pos)\n break;\n let oldSize = this.ranges[i + oldIndex], end = start + oldSize;\n if (pos <= end && i == index * 3)\n return true;\n diff += this.ranges[i + newIndex] - oldSize;\n }\n return false;\n }\n /**\n Calls the given function on each of the changed ranges included in\n this map.\n */\n forEach(f) {\n let oldIndex = this.inverted ? 2 : 1, newIndex = this.inverted ? 1 : 2;\n for (let i = 0, diff = 0; i < this.ranges.length; i += 3) {\n let start = this.ranges[i], oldStart = start - (this.inverted ? diff : 0), newStart = start + (this.inverted ? 0 : diff);\n let oldSize = this.ranges[i + oldIndex], newSize = this.ranges[i + newIndex];\n f(oldStart, oldStart + oldSize, newStart, newStart + newSize);\n diff += newSize - oldSize;\n }\n }\n /**\n Create an inverted version of this map. The result can be used to\n map positions in the post-step document to the pre-step document.\n */\n invert() {\n return new StepMap(this.ranges, !this.inverted);\n }\n /**\n @internal\n */\n toString() {\n return (this.inverted ? \"-\" : \"\") + JSON.stringify(this.ranges);\n }\n /**\n Create a map that moves all positions by offset `n` (which may be\n negative). This can be useful when applying steps meant for a\n sub-document to a larger document, or vice-versa.\n */\n static offset(n) {\n return n == 0 ? StepMap.empty : new StepMap(n < 0 ? [0, -n, 0] : [0, 0, n]);\n }\n}\n/**\nA StepMap that contains no changed ranges.\n*/\nStepMap.empty = new StepMap([]);\n/**\nA mapping represents a pipeline of zero or more [step\nmaps](https://prosemirror.net/docs/ref/#transform.StepMap). It has special provisions for losslessly\nhandling mapping positions through a series of steps in which some\nsteps are inverted versions of earlier steps. (This comes up when\n‘[rebasing](https://prosemirror.net/docs/guide/#transform.rebasing)’ steps for\ncollaboration or history management.)\n*/\nclass Mapping {\n /**\n Create a new mapping with the given position maps.\n */\n constructor(maps, \n /**\n @internal\n */\n mirror, \n /**\n The starting position in the `maps` array, used when `map` or\n `mapResult` is called.\n */\n from = 0, \n /**\n The end position in the `maps` array.\n */\n to = maps ? maps.length : 0) {\n this.mirror = mirror;\n this.from = from;\n this.to = to;\n this._maps = maps || [];\n this.ownData = !(maps || mirror);\n }\n /**\n The step maps in this mapping.\n */\n get maps() { return this._maps; }\n /**\n Create a mapping that maps only through a part of this one.\n */\n slice(from = 0, to = this.maps.length) {\n return new Mapping(this._maps, this.mirror, from, to);\n }\n /**\n Add a step map to the end of this mapping. If `mirrors` is\n given, it should be the index of the step map that is the mirror\n image of this one.\n */\n appendMap(map, mirrors) {\n if (!this.ownData) {\n this._maps = this._maps.slice();\n this.mirror = this.mirror && this.mirror.slice();\n this.ownData = true;\n }\n this.to = this._maps.push(map);\n if (mirrors != null)\n this.setMirror(this._maps.length - 1, mirrors);\n }\n /**\n Add all the step maps in a given mapping to this one (preserving\n mirroring information).\n */\n appendMapping(mapping) {\n for (let i = 0, startSize = this._maps.length; i < mapping._maps.length; i++) {\n let mirr = mapping.getMirror(i);\n this.appendMap(mapping._maps[i], mirr != null && mirr < i ? startSize + mirr : undefined);\n }\n }\n /**\n Finds the offset of the step map that mirrors the map at the\n given offset, in this mapping (as per the second argument to\n `appendMap`).\n */\n getMirror(n) {\n if (this.mirror)\n for (let i = 0; i < this.mirror.length; i++)\n if (this.mirror[i] == n)\n return this.mirror[i + (i % 2 ? -1 : 1)];\n }\n /**\n @internal\n */\n setMirror(n, m) {\n if (!this.mirror)\n this.mirror = [];\n this.mirror.push(n, m);\n }\n /**\n Append the inverse of the given mapping to this one.\n */\n appendMappingInverted(mapping) {\n for (let i = mapping.maps.length - 1, totalSize = this._maps.length + mapping._maps.length; i >= 0; i--) {\n let mirr = mapping.getMirror(i);\n this.appendMap(mapping._maps[i].invert(), mirr != null && mirr > i ? totalSize - mirr - 1 : undefined);\n }\n }\n /**\n Create an inverted version of this mapping.\n */\n invert() {\n let inverse = new Mapping;\n inverse.appendMappingInverted(this);\n return inverse;\n }\n /**\n Map a position through this mapping.\n */\n map(pos, assoc = 1) {\n if (this.mirror)\n return this._map(pos, assoc, true);\n for (let i = this.from; i < this.to; i++)\n pos = this._maps[i].map(pos, assoc);\n return pos;\n }\n /**\n Map a position through this mapping, returning a mapping\n result.\n */\n mapResult(pos, assoc = 1) { return this._map(pos, assoc, false); }\n /**\n @internal\n */\n _map(pos, assoc, simple) {\n let delInfo = 0;\n for (let i = this.from; i < this.to; i++) {\n let map = this._maps[i], result = map.mapResult(pos, assoc);\n if (result.recover != null) {\n let corr = this.getMirror(i);\n if (corr != null && corr > i && corr < this.to) {\n i = corr;\n pos = this._maps[corr].recover(result.recover);\n continue;\n }\n }\n delInfo |= result.delInfo;\n pos = result.pos;\n }\n return simple ? pos : new MapResult(pos, delInfo, null);\n }\n}\n\nconst stepsByID = Object.create(null);\n/**\nA step object represents an atomic change. It generally applies\nonly to the document it was created for, since the positions\nstored in it will only make sense for that document.\n\nNew steps are defined by creating classes that extend `Step`,\noverriding the `apply`, `invert`, `map`, `getMap` and `fromJSON`\nmethods, and registering your class with a unique\nJSON-serialization identifier using\n[`Step.jsonID`](https://prosemirror.net/docs/ref/#transform.Step^jsonID).\n*/\nclass Step {\n /**\n Get the step map that represents the changes made by this step,\n and which can be used to transform between positions in the old\n and the new document.\n */\n getMap() { return StepMap.empty; }\n /**\n Try to merge this step with another one, to be applied directly\n after it. Returns the merged step when possible, null if the\n steps can't be merged.\n */\n merge(other) { return null; }\n /**\n Deserialize a step from its JSON representation. Will call\n through to the step class' own implementation of this method.\n */\n static fromJSON(schema, json) {\n if (!json || !json.stepType)\n throw new RangeError(\"Invalid input for Step.fromJSON\");\n let type = stepsByID[json.stepType];\n if (!type)\n throw new RangeError(`No step type ${json.stepType} defined`);\n return type.fromJSON(schema, json);\n }\n /**\n To be able to serialize steps to JSON, each step needs a string\n ID to attach to its JSON representation. Use this method to\n register an ID for your step classes. Try to pick something\n that's unlikely to clash with steps from other modules.\n */\n static jsonID(id, stepClass) {\n if (id in stepsByID)\n throw new RangeError(\"Duplicate use of step JSON ID \" + id);\n stepsByID[id] = stepClass;\n stepClass.prototype.jsonID = id;\n return stepClass;\n }\n}\n/**\nThe result of [applying](https://prosemirror.net/docs/ref/#transform.Step.apply) a step. Contains either a\nnew document or a failure value.\n*/\nclass StepResult {\n /**\n @internal\n */\n constructor(\n /**\n The transformed document, if successful.\n */\n doc, \n /**\n The failure message, if unsuccessful.\n */\n failed) {\n this.doc = doc;\n this.failed = failed;\n }\n /**\n Create a successful step result.\n */\n static ok(doc) { return new StepResult(doc, null); }\n /**\n Create a failed step result.\n */\n static fail(message) { return new StepResult(null, message); }\n /**\n Call [`Node.replace`](https://prosemirror.net/docs/ref/#model.Node.replace) with the given\n arguments. Create a successful result if it succeeds, and a\n failed one if it throws a `ReplaceError`.\n */\n static fromReplace(doc, from, to, slice) {\n try {\n return StepResult.ok(doc.replace(from, to, slice));\n }\n catch (e) {\n if (e instanceof prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.ReplaceError)\n return StepResult.fail(e.message);\n throw e;\n }\n }\n}\n\nfunction mapFragment(fragment, f, parent) {\n let mapped = [];\n for (let i = 0; i < fragment.childCount; i++) {\n let child = fragment.child(i);\n if (child.content.size)\n child = child.copy(mapFragment(child.content, f, child));\n if (child.isInline)\n child = f(child, parent, i);\n mapped.push(child);\n }\n return prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.fromArray(mapped);\n}\n/**\nAdd a mark to all inline content between two positions.\n*/\nclass AddMarkStep extends Step {\n /**\n Create a mark step.\n */\n constructor(\n /**\n The start of the marked range.\n */\n from, \n /**\n The end of the marked range.\n */\n to, \n /**\n The mark to add.\n */\n mark) {\n super();\n this.from = from;\n this.to = to;\n this.mark = mark;\n }\n apply(doc) {\n let oldSlice = doc.slice(this.from, this.to), $from = doc.resolve(this.from);\n let parent = $from.node($from.sharedDepth(this.to));\n let slice = new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(mapFragment(oldSlice.content, (node, parent) => {\n if (!node.isAtom || !parent.type.allowsMarkType(this.mark.type))\n return node;\n return node.mark(this.mark.addToSet(node.marks));\n }, parent), oldSlice.openStart, oldSlice.openEnd);\n return StepResult.fromReplace(doc, this.from, this.to, slice);\n }\n invert() {\n return new RemoveMarkStep(this.from, this.to, this.mark);\n }\n map(mapping) {\n let from = mapping.mapResult(this.from, 1), to = mapping.mapResult(this.to, -1);\n if (from.deleted && to.deleted || from.pos >= to.pos)\n return null;\n return new AddMarkStep(from.pos, to.pos, this.mark);\n }\n merge(other) {\n if (other instanceof AddMarkStep &&\n other.mark.eq(this.mark) &&\n this.from <= other.to && this.to >= other.from)\n return new AddMarkStep(Math.min(this.from, other.from), Math.max(this.to, other.to), this.mark);\n return null;\n }\n toJSON() {\n return { stepType: \"addMark\", mark: this.mark.toJSON(),\n from: this.from, to: this.to };\n }\n /**\n @internal\n */\n static fromJSON(schema, json) {\n if (typeof json.from != \"number\" || typeof json.to != \"number\")\n throw new RangeError(\"Invalid input for AddMarkStep.fromJSON\");\n return new AddMarkStep(json.from, json.to, schema.markFromJSON(json.mark));\n }\n}\nStep.jsonID(\"addMark\", AddMarkStep);\n/**\nRemove a mark from all inline content between two positions.\n*/\nclass RemoveMarkStep extends Step {\n /**\n Create a mark-removing step.\n */\n constructor(\n /**\n The start of the unmarked range.\n */\n from, \n /**\n The end of the unmarked range.\n */\n to, \n /**\n The mark to remove.\n */\n mark) {\n super();\n this.from = from;\n this.to = to;\n this.mark = mark;\n }\n apply(doc) {\n let oldSlice = doc.slice(this.from, this.to);\n let slice = new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(mapFragment(oldSlice.content, node => {\n return node.mark(this.mark.removeFromSet(node.marks));\n }, doc), oldSlice.openStart, oldSlice.openEnd);\n return StepResult.fromReplace(doc, this.from, this.to, slice);\n }\n invert() {\n return new AddMarkStep(this.from, this.to, this.mark);\n }\n map(mapping) {\n let from = mapping.mapResult(this.from, 1), to = mapping.mapResult(this.to, -1);\n if (from.deleted && to.deleted || from.pos >= to.pos)\n return null;\n return new RemoveMarkStep(from.pos, to.pos, this.mark);\n }\n merge(other) {\n if (other instanceof RemoveMarkStep &&\n other.mark.eq(this.mark) &&\n this.from <= other.to && this.to >= other.from)\n return new RemoveMarkStep(Math.min(this.from, other.from), Math.max(this.to, other.to), this.mark);\n return null;\n }\n toJSON() {\n return { stepType: \"removeMark\", mark: this.mark.toJSON(),\n from: this.from, to: this.to };\n }\n /**\n @internal\n */\n static fromJSON(schema, json) {\n if (typeof json.from != \"number\" || typeof json.to != \"number\")\n throw new RangeError(\"Invalid input for RemoveMarkStep.fromJSON\");\n return new RemoveMarkStep(json.from, json.to, schema.markFromJSON(json.mark));\n }\n}\nStep.jsonID(\"removeMark\", RemoveMarkStep);\n/**\nAdd a mark to a specific node.\n*/\nclass AddNodeMarkStep extends Step {\n /**\n Create a node mark step.\n */\n constructor(\n /**\n The position of the target node.\n */\n pos, \n /**\n The mark to add.\n */\n mark) {\n super();\n this.pos = pos;\n this.mark = mark;\n }\n apply(doc) {\n let node = doc.nodeAt(this.pos);\n if (!node)\n return StepResult.fail(\"No node at mark step's position\");\n let updated = node.type.create(node.attrs, null, this.mark.addToSet(node.marks));\n return StepResult.fromReplace(doc, this.pos, this.pos + 1, new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(updated), 0, node.isLeaf ? 0 : 1));\n }\n invert(doc) {\n let node = doc.nodeAt(this.pos);\n if (node) {\n let newSet = this.mark.addToSet(node.marks);\n if (newSet.length == node.marks.length) {\n for (let i = 0; i < node.marks.length; i++)\n if (!node.marks[i].isInSet(newSet))\n return new AddNodeMarkStep(this.pos, node.marks[i]);\n return new AddNodeMarkStep(this.pos, this.mark);\n }\n }\n return new RemoveNodeMarkStep(this.pos, this.mark);\n }\n map(mapping) {\n let pos = mapping.mapResult(this.pos, 1);\n return pos.deletedAfter ? null : new AddNodeMarkStep(pos.pos, this.mark);\n }\n toJSON() {\n return { stepType: \"addNodeMark\", pos: this.pos, mark: this.mark.toJSON() };\n }\n /**\n @internal\n */\n static fromJSON(schema, json) {\n if (typeof json.pos != \"number\")\n throw new RangeError(\"Invalid input for AddNodeMarkStep.fromJSON\");\n return new AddNodeMarkStep(json.pos, schema.markFromJSON(json.mark));\n }\n}\nStep.jsonID(\"addNodeMark\", AddNodeMarkStep);\n/**\nRemove a mark from a specific node.\n*/\nclass RemoveNodeMarkStep extends Step {\n /**\n Create a mark-removing step.\n */\n constructor(\n /**\n The position of the target node.\n */\n pos, \n /**\n The mark to remove.\n */\n mark) {\n super();\n this.pos = pos;\n this.mark = mark;\n }\n apply(doc) {\n let node = doc.nodeAt(this.pos);\n if (!node)\n return StepResult.fail(\"No node at mark step's position\");\n let updated = node.type.create(node.attrs, null, this.mark.removeFromSet(node.marks));\n return StepResult.fromReplace(doc, this.pos, this.pos + 1, new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(updated), 0, node.isLeaf ? 0 : 1));\n }\n invert(doc) {\n let node = doc.nodeAt(this.pos);\n if (!node || !this.mark.isInSet(node.marks))\n return this;\n return new AddNodeMarkStep(this.pos, this.mark);\n }\n map(mapping) {\n let pos = mapping.mapResult(this.pos, 1);\n return pos.deletedAfter ? null : new RemoveNodeMarkStep(pos.pos, this.mark);\n }\n toJSON() {\n return { stepType: \"removeNodeMark\", pos: this.pos, mark: this.mark.toJSON() };\n }\n /**\n @internal\n */\n static fromJSON(schema, json) {\n if (typeof json.pos != \"number\")\n throw new RangeError(\"Invalid input for RemoveNodeMarkStep.fromJSON\");\n return new RemoveNodeMarkStep(json.pos, schema.markFromJSON(json.mark));\n }\n}\nStep.jsonID(\"removeNodeMark\", RemoveNodeMarkStep);\n\n/**\nReplace a part of the document with a slice of new content.\n*/\nclass ReplaceStep extends Step {\n /**\n The given `slice` should fit the 'gap' between `from` and\n `to`—the depths must line up, and the surrounding nodes must be\n able to be joined with the open sides of the slice. When\n `structure` is true, the step will fail if the content between\n from and to is not just a sequence of closing and then opening\n tokens (this is to guard against rebased replace steps\n overwriting something they weren't supposed to).\n */\n constructor(\n /**\n The start position of the replaced range.\n */\n from, \n /**\n The end position of the replaced range.\n */\n to, \n /**\n The slice to insert.\n */\n slice, \n /**\n @internal\n */\n structure = false) {\n super();\n this.from = from;\n this.to = to;\n this.slice = slice;\n this.structure = structure;\n }\n apply(doc) {\n if (this.structure && contentBetween(doc, this.from, this.to))\n return StepResult.fail(\"Structure replace would overwrite content\");\n return StepResult.fromReplace(doc, this.from, this.to, this.slice);\n }\n getMap() {\n return new StepMap([this.from, this.to - this.from, this.slice.size]);\n }\n invert(doc) {\n return new ReplaceStep(this.from, this.from + this.slice.size, doc.slice(this.from, this.to));\n }\n map(mapping) {\n let from = mapping.mapResult(this.from, 1), to = mapping.mapResult(this.to, -1);\n if (from.deletedAcross && to.deletedAcross)\n return null;\n return new ReplaceStep(from.pos, Math.max(from.pos, to.pos), this.slice, this.structure);\n }\n merge(other) {\n if (!(other instanceof ReplaceStep) || other.structure || this.structure)\n return null;\n if (this.from + this.slice.size == other.from && !this.slice.openEnd && !other.slice.openStart) {\n let slice = this.slice.size + other.slice.size == 0 ? prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice.empty\n : new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(this.slice.content.append(other.slice.content), this.slice.openStart, other.slice.openEnd);\n return new ReplaceStep(this.from, this.to + (other.to - other.from), slice, this.structure);\n }\n else if (other.to == this.from && !this.slice.openStart && !other.slice.openEnd) {\n let slice = this.slice.size + other.slice.size == 0 ? prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice.empty\n : new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(other.slice.content.append(this.slice.content), other.slice.openStart, this.slice.openEnd);\n return new ReplaceStep(other.from, this.to, slice, this.structure);\n }\n else {\n return null;\n }\n }\n toJSON() {\n let json = { stepType: \"replace\", from: this.from, to: this.to };\n if (this.slice.size)\n json.slice = this.slice.toJSON();\n if (this.structure)\n json.structure = true;\n return json;\n }\n /**\n @internal\n */\n static fromJSON(schema, json) {\n if (typeof json.from != \"number\" || typeof json.to != \"number\")\n throw new RangeError(\"Invalid input for ReplaceStep.fromJSON\");\n return new ReplaceStep(json.from, json.to, prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice.fromJSON(schema, json.slice), !!json.structure);\n }\n}\nStep.jsonID(\"replace\", ReplaceStep);\n/**\nReplace a part of the document with a slice of content, but\npreserve a range of the replaced content by moving it into the\nslice.\n*/\nclass ReplaceAroundStep extends Step {\n /**\n Create a replace-around step with the given range and gap.\n `insert` should be the point in the slice into which the content\n of the gap should be moved. `structure` has the same meaning as\n it has in the [`ReplaceStep`](https://prosemirror.net/docs/ref/#transform.ReplaceStep) class.\n */\n constructor(\n /**\n The start position of the replaced range.\n */\n from, \n /**\n The end position of the replaced range.\n */\n to, \n /**\n The start of preserved range.\n */\n gapFrom, \n /**\n The end of preserved range.\n */\n gapTo, \n /**\n The slice to insert.\n */\n slice, \n /**\n The position in the slice where the preserved range should be\n inserted.\n */\n insert, \n /**\n @internal\n */\n structure = false) {\n super();\n this.from = from;\n this.to = to;\n this.gapFrom = gapFrom;\n this.gapTo = gapTo;\n this.slice = slice;\n this.insert = insert;\n this.structure = structure;\n }\n apply(doc) {\n if (this.structure && (contentBetween(doc, this.from, this.gapFrom) ||\n contentBetween(doc, this.gapTo, this.to)))\n return StepResult.fail(\"Structure gap-replace would overwrite content\");\n let gap = doc.slice(this.gapFrom, this.gapTo);\n if (gap.openStart || gap.openEnd)\n return StepResult.fail(\"Gap is not a flat range\");\n let inserted = this.slice.insertAt(this.insert, gap.content);\n if (!inserted)\n return StepResult.fail(\"Content does not fit in gap\");\n return StepResult.fromReplace(doc, this.from, this.to, inserted);\n }\n getMap() {\n return new StepMap([this.from, this.gapFrom - this.from, this.insert,\n this.gapTo, this.to - this.gapTo, this.slice.size - this.insert]);\n }\n invert(doc) {\n let gap = this.gapTo - this.gapFrom;\n return new ReplaceAroundStep(this.from, this.from + this.slice.size + gap, this.from + this.insert, this.from + this.insert + gap, doc.slice(this.from, this.to).removeBetween(this.gapFrom - this.from, this.gapTo - this.from), this.gapFrom - this.from, this.structure);\n }\n map(mapping) {\n let from = mapping.mapResult(this.from, 1), to = mapping.mapResult(this.to, -1);\n let gapFrom = this.from == this.gapFrom ? from.pos : mapping.map(this.gapFrom, -1);\n let gapTo = this.to == this.gapTo ? to.pos : mapping.map(this.gapTo, 1);\n if ((from.deletedAcross && to.deletedAcross) || gapFrom < from.pos || gapTo > to.pos)\n return null;\n return new ReplaceAroundStep(from.pos, to.pos, gapFrom, gapTo, this.slice, this.insert, this.structure);\n }\n toJSON() {\n let json = { stepType: \"replaceAround\", from: this.from, to: this.to,\n gapFrom: this.gapFrom, gapTo: this.gapTo, insert: this.insert };\n if (this.slice.size)\n json.slice = this.slice.toJSON();\n if (this.structure)\n json.structure = true;\n return json;\n }\n /**\n @internal\n */\n static fromJSON(schema, json) {\n if (typeof json.from != \"number\" || typeof json.to != \"number\" ||\n typeof json.gapFrom != \"number\" || typeof json.gapTo != \"number\" || typeof json.insert != \"number\")\n throw new RangeError(\"Invalid input for ReplaceAroundStep.fromJSON\");\n return new ReplaceAroundStep(json.from, json.to, json.gapFrom, json.gapTo, prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice.fromJSON(schema, json.slice), json.insert, !!json.structure);\n }\n}\nStep.jsonID(\"replaceAround\", ReplaceAroundStep);\nfunction contentBetween(doc, from, to) {\n let $from = doc.resolve(from), dist = to - from, depth = $from.depth;\n while (dist > 0 && depth > 0 && $from.indexAfter(depth) == $from.node(depth).childCount) {\n depth--;\n dist--;\n }\n if (dist > 0) {\n let next = $from.node(depth).maybeChild($from.indexAfter(depth));\n while (dist > 0) {\n if (!next || next.isLeaf)\n return true;\n next = next.firstChild;\n dist--;\n }\n }\n return false;\n}\n\nfunction addMark(tr, from, to, mark) {\n let removed = [], added = [];\n let removing, adding;\n tr.doc.nodesBetween(from, to, (node, pos, parent) => {\n if (!node.isInline)\n return;\n let marks = node.marks;\n if (!mark.isInSet(marks) && parent.type.allowsMarkType(mark.type)) {\n let start = Math.max(pos, from), end = Math.min(pos + node.nodeSize, to);\n let newSet = mark.addToSet(marks);\n for (let i = 0; i < marks.length; i++) {\n if (!marks[i].isInSet(newSet)) {\n if (removing && removing.to == start && removing.mark.eq(marks[i]))\n removing.to = end;\n else\n removed.push(removing = new RemoveMarkStep(start, end, marks[i]));\n }\n }\n if (adding && adding.to == start)\n adding.to = end;\n else\n added.push(adding = new AddMarkStep(start, end, mark));\n }\n });\n removed.forEach(s => tr.step(s));\n added.forEach(s => tr.step(s));\n}\nfunction removeMark(tr, from, to, mark) {\n let matched = [], step = 0;\n tr.doc.nodesBetween(from, to, (node, pos) => {\n if (!node.isInline)\n return;\n step++;\n let toRemove = null;\n if (mark instanceof prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.MarkType) {\n let set = node.marks, found;\n while (found = mark.isInSet(set)) {\n (toRemove || (toRemove = [])).push(found);\n set = found.removeFromSet(set);\n }\n }\n else if (mark) {\n if (mark.isInSet(node.marks))\n toRemove = [mark];\n }\n else {\n toRemove = node.marks;\n }\n if (toRemove && toRemove.length) {\n let end = Math.min(pos + node.nodeSize, to);\n for (let i = 0; i < toRemove.length; i++) {\n let style = toRemove[i], found;\n for (let j = 0; j < matched.length; j++) {\n let m = matched[j];\n if (m.step == step - 1 && style.eq(matched[j].style))\n found = m;\n }\n if (found) {\n found.to = end;\n found.step = step;\n }\n else {\n matched.push({ style, from: Math.max(pos, from), to: end, step });\n }\n }\n }\n });\n matched.forEach(m => tr.step(new RemoveMarkStep(m.from, m.to, m.style)));\n}\nfunction clearIncompatible(tr, pos, parentType, match = parentType.contentMatch, clearNewlines = true) {\n let node = tr.doc.nodeAt(pos);\n let replSteps = [], cur = pos + 1;\n for (let i = 0; i < node.childCount; i++) {\n let child = node.child(i), end = cur + child.nodeSize;\n let allowed = match.matchType(child.type);\n if (!allowed) {\n replSteps.push(new ReplaceStep(cur, end, prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice.empty));\n }\n else {\n match = allowed;\n for (let j = 0; j < child.marks.length; j++)\n if (!parentType.allowsMarkType(child.marks[j].type))\n tr.step(new RemoveMarkStep(cur, end, child.marks[j]));\n if (clearNewlines && child.isText && parentType.whitespace != \"pre\") {\n let m, newline = /\\r?\\n|\\r/g, slice;\n while (m = newline.exec(child.text)) {\n if (!slice)\n slice = new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(parentType.schema.text(\" \", parentType.allowedMarks(child.marks))), 0, 0);\n replSteps.push(new ReplaceStep(cur + m.index, cur + m.index + m[0].length, slice));\n }\n }\n }\n cur = end;\n }\n if (!match.validEnd) {\n let fill = match.fillBefore(prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.empty, true);\n tr.replace(cur, cur, new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(fill, 0, 0));\n }\n for (let i = replSteps.length - 1; i >= 0; i--)\n tr.step(replSteps[i]);\n}\n\nfunction canCut(node, start, end) {\n return (start == 0 || node.canReplace(start, node.childCount)) &&\n (end == node.childCount || node.canReplace(0, end));\n}\n/**\nTry to find a target depth to which the content in the given range\ncan be lifted. Will not go across\n[isolating](https://prosemirror.net/docs/ref/#model.NodeSpec.isolating) parent nodes.\n*/\nfunction liftTarget(range) {\n let parent = range.parent;\n let content = parent.content.cutByIndex(range.startIndex, range.endIndex);\n for (let depth = range.depth, contentBefore = 0, contentAfter = 0;; --depth) {\n let node = range.$from.node(depth);\n let index = range.$from.index(depth) + contentBefore, endIndex = range.$to.indexAfter(depth) - contentAfter;\n if (depth < range.depth && node.canReplace(index, endIndex, content))\n return depth;\n if (depth == 0 || node.type.spec.isolating || !canCut(node, index, endIndex))\n break;\n if (index)\n contentBefore = 1;\n if (endIndex < node.childCount)\n contentAfter = 1;\n }\n return null;\n}\nfunction lift(tr, range, target) {\n let { $from, $to, depth } = range;\n let gapStart = $from.before(depth + 1), gapEnd = $to.after(depth + 1);\n let start = gapStart, end = gapEnd;\n let before = prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.empty, openStart = 0;\n for (let d = depth, splitting = false; d > target; d--)\n if (splitting || $from.index(d) > 0) {\n splitting = true;\n before = prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from($from.node(d).copy(before));\n openStart++;\n }\n else {\n start--;\n }\n let after = prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.empty, openEnd = 0;\n for (let d = depth, splitting = false; d > target; d--)\n if (splitting || $to.after(d + 1) < $to.end(d)) {\n splitting = true;\n after = prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from($to.node(d).copy(after));\n openEnd++;\n }\n else {\n end++;\n }\n tr.step(new ReplaceAroundStep(start, end, gapStart, gapEnd, new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(before.append(after), openStart, openEnd), before.size - openStart, true));\n}\n/**\nTry to find a valid way to wrap the content in the given range in a\nnode of the given type. May introduce extra nodes around and inside\nthe wrapper node, if necessary. Returns null if no valid wrapping\ncould be found. When `innerRange` is given, that range's content is\nused as the content to fit into the wrapping, instead of the\ncontent of `range`.\n*/\nfunction findWrapping(range, nodeType, attrs = null, innerRange = range) {\n let around = findWrappingOutside(range, nodeType);\n let inner = around && findWrappingInside(innerRange, nodeType);\n if (!inner)\n return null;\n return around.map(withAttrs)\n .concat({ type: nodeType, attrs }).concat(inner.map(withAttrs));\n}\nfunction withAttrs(type) { return { type, attrs: null }; }\nfunction findWrappingOutside(range, type) {\n let { parent, startIndex, endIndex } = range;\n let around = parent.contentMatchAt(startIndex).findWrapping(type);\n if (!around)\n return null;\n let outer = around.length ? around[0] : type;\n return parent.canReplaceWith(startIndex, endIndex, outer) ? around : null;\n}\nfunction findWrappingInside(range, type) {\n let { parent, startIndex, endIndex } = range;\n let inner = parent.child(startIndex);\n let inside = type.contentMatch.findWrapping(inner.type);\n if (!inside)\n return null;\n let lastType = inside.length ? inside[inside.length - 1] : type;\n let innerMatch = lastType.contentMatch;\n for (let i = startIndex; innerMatch && i < endIndex; i++)\n innerMatch = innerMatch.matchType(parent.child(i).type);\n if (!innerMatch || !innerMatch.validEnd)\n return null;\n return inside;\n}\nfunction wrap(tr, range, wrappers) {\n let content = prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.empty;\n for (let i = wrappers.length - 1; i >= 0; i--) {\n if (content.size) {\n let match = wrappers[i].type.contentMatch.matchFragment(content);\n if (!match || !match.validEnd)\n throw new RangeError(\"Wrapper type given to Transform.wrap does not form valid content of its parent wrapper\");\n }\n content = prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(wrappers[i].type.create(wrappers[i].attrs, content));\n }\n let start = range.start, end = range.end;\n tr.step(new ReplaceAroundStep(start, end, start, end, new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(content, 0, 0), wrappers.length, true));\n}\nfunction setBlockType(tr, from, to, type, attrs) {\n if (!type.isTextblock)\n throw new RangeError(\"Type given to setBlockType should be a textblock\");\n let mapFrom = tr.steps.length;\n tr.doc.nodesBetween(from, to, (node, pos) => {\n let attrsHere = typeof attrs == \"function\" ? attrs(node) : attrs;\n if (node.isTextblock && !node.hasMarkup(type, attrsHere) &&\n canChangeType(tr.doc, tr.mapping.slice(mapFrom).map(pos), type)) {\n let convertNewlines = null;\n if (type.schema.linebreakReplacement) {\n let pre = type.whitespace == \"pre\", supportLinebreak = !!type.contentMatch.matchType(type.schema.linebreakReplacement);\n if (pre && !supportLinebreak)\n convertNewlines = false;\n else if (!pre && supportLinebreak)\n convertNewlines = true;\n }\n // Ensure all markup that isn't allowed in the new node type is cleared\n if (convertNewlines === false)\n replaceLinebreaks(tr, node, pos, mapFrom);\n clearIncompatible(tr, tr.mapping.slice(mapFrom).map(pos, 1), type, undefined, convertNewlines === null);\n let mapping = tr.mapping.slice(mapFrom);\n let startM = mapping.map(pos, 1), endM = mapping.map(pos + node.nodeSize, 1);\n tr.step(new ReplaceAroundStep(startM, endM, startM + 1, endM - 1, new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(type.create(attrsHere, null, node.marks)), 0, 0), 1, true));\n if (convertNewlines === true)\n replaceNewlines(tr, node, pos, mapFrom);\n return false;\n }\n });\n}\nfunction replaceNewlines(tr, node, pos, mapFrom) {\n node.forEach((child, offset) => {\n if (child.isText) {\n let m, newline = /\\r?\\n|\\r/g;\n while (m = newline.exec(child.text)) {\n let start = tr.mapping.slice(mapFrom).map(pos + 1 + offset + m.index);\n tr.replaceWith(start, start + 1, node.type.schema.linebreakReplacement.create());\n }\n }\n });\n}\nfunction replaceLinebreaks(tr, node, pos, mapFrom) {\n node.forEach((child, offset) => {\n if (child.type == child.type.schema.linebreakReplacement) {\n let start = tr.mapping.slice(mapFrom).map(pos + 1 + offset);\n tr.replaceWith(start, start + 1, node.type.schema.text(\"\\n\"));\n }\n });\n}\nfunction canChangeType(doc, pos, type) {\n let $pos = doc.resolve(pos), index = $pos.index();\n return $pos.parent.canReplaceWith(index, index + 1, type);\n}\n/**\nChange the type, attributes, and/or marks of the node at `pos`.\nWhen `type` isn't given, the existing node type is preserved,\n*/\nfunction setNodeMarkup(tr, pos, type, attrs, marks) {\n let node = tr.doc.nodeAt(pos);\n if (!node)\n throw new RangeError(\"No node at given position\");\n if (!type)\n type = node.type;\n let newNode = type.create(attrs, null, marks || node.marks);\n if (node.isLeaf)\n return tr.replaceWith(pos, pos + node.nodeSize, newNode);\n if (!type.validContent(node.content))\n throw new RangeError(\"Invalid content for node type \" + type.name);\n tr.step(new ReplaceAroundStep(pos, pos + node.nodeSize, pos + 1, pos + node.nodeSize - 1, new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(newNode), 0, 0), 1, true));\n}\n/**\nCheck whether splitting at the given position is allowed.\n*/\nfunction canSplit(doc, pos, depth = 1, typesAfter) {\n let $pos = doc.resolve(pos), base = $pos.depth - depth;\n let innerType = (typesAfter && typesAfter[typesAfter.length - 1]) || $pos.parent;\n if (base < 0 || $pos.parent.type.spec.isolating ||\n !$pos.parent.canReplace($pos.index(), $pos.parent.childCount) ||\n !innerType.type.validContent($pos.parent.content.cutByIndex($pos.index(), $pos.parent.childCount)))\n return false;\n for (let d = $pos.depth - 1, i = depth - 2; d > base; d--, i--) {\n let node = $pos.node(d), index = $pos.index(d);\n if (node.type.spec.isolating)\n return false;\n let rest = node.content.cutByIndex(index, node.childCount);\n let overrideChild = typesAfter && typesAfter[i + 1];\n if (overrideChild)\n rest = rest.replaceChild(0, overrideChild.type.create(overrideChild.attrs));\n let after = (typesAfter && typesAfter[i]) || node;\n if (!node.canReplace(index + 1, node.childCount) || !after.type.validContent(rest))\n return false;\n }\n let index = $pos.indexAfter(base);\n let baseType = typesAfter && typesAfter[0];\n return $pos.node(base).canReplaceWith(index, index, baseType ? baseType.type : $pos.node(base + 1).type);\n}\nfunction split(tr, pos, depth = 1, typesAfter) {\n let $pos = tr.doc.resolve(pos), before = prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.empty, after = prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.empty;\n for (let d = $pos.depth, e = $pos.depth - depth, i = depth - 1; d > e; d--, i--) {\n before = prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from($pos.node(d).copy(before));\n let typeAfter = typesAfter && typesAfter[i];\n after = prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(typeAfter ? typeAfter.type.create(typeAfter.attrs, after) : $pos.node(d).copy(after));\n }\n tr.step(new ReplaceStep(pos, pos, new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(before.append(after), depth, depth), true));\n}\n/**\nTest whether the blocks before and after a given position can be\njoined.\n*/\nfunction canJoin(doc, pos) {\n let $pos = doc.resolve(pos), index = $pos.index();\n return joinable($pos.nodeBefore, $pos.nodeAfter) &&\n $pos.parent.canReplace(index, index + 1);\n}\nfunction canAppendWithSubstitutedLinebreaks(a, b) {\n if (!b.content.size)\n a.type.compatibleContent(b.type);\n let match = a.contentMatchAt(a.childCount);\n let { linebreakReplacement } = a.type.schema;\n for (let i = 0; i < b.childCount; i++) {\n let child = b.child(i);\n let type = child.type == linebreakReplacement ? a.type.schema.nodes.text : child.type;\n match = match.matchType(type);\n if (!match)\n return false;\n if (!a.type.allowsMarks(child.marks))\n return false;\n }\n return match.validEnd;\n}\nfunction joinable(a, b) {\n return !!(a && b && !a.isLeaf && canAppendWithSubstitutedLinebreaks(a, b));\n}\n/**\nFind an ancestor of the given position that can be joined to the\nblock before (or after if `dir` is positive). Returns the joinable\npoint, if any.\n*/\nfunction joinPoint(doc, pos, dir = -1) {\n let $pos = doc.resolve(pos);\n for (let d = $pos.depth;; d--) {\n let before, after, index = $pos.index(d);\n if (d == $pos.depth) {\n before = $pos.nodeBefore;\n after = $pos.nodeAfter;\n }\n else if (dir > 0) {\n before = $pos.node(d + 1);\n index++;\n after = $pos.node(d).maybeChild(index);\n }\n else {\n before = $pos.node(d).maybeChild(index - 1);\n after = $pos.node(d + 1);\n }\n if (before && !before.isTextblock && joinable(before, after) &&\n $pos.node(d).canReplace(index, index + 1))\n return pos;\n if (d == 0)\n break;\n pos = dir < 0 ? $pos.before(d) : $pos.after(d);\n }\n}\nfunction join(tr, pos, depth) {\n let convertNewlines = null;\n let { linebreakReplacement } = tr.doc.type.schema;\n let $before = tr.doc.resolve(pos - depth), beforeType = $before.node().type;\n if (linebreakReplacement && beforeType.inlineContent) {\n let pre = beforeType.whitespace == \"pre\";\n let supportLinebreak = !!beforeType.contentMatch.matchType(linebreakReplacement);\n if (pre && !supportLinebreak)\n convertNewlines = false;\n else if (!pre && supportLinebreak)\n convertNewlines = true;\n }\n let mapFrom = tr.steps.length;\n if (convertNewlines === false) {\n let $after = tr.doc.resolve(pos + depth);\n replaceLinebreaks(tr, $after.node(), $after.before(), mapFrom);\n }\n if (beforeType.inlineContent)\n clearIncompatible(tr, pos + depth - 1, beforeType, $before.node().contentMatchAt($before.index()), convertNewlines == null);\n let mapping = tr.mapping.slice(mapFrom), start = mapping.map(pos - depth);\n tr.step(new ReplaceStep(start, mapping.map(pos + depth, -1), prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice.empty, true));\n if (convertNewlines === true) {\n let $full = tr.doc.resolve(start);\n replaceNewlines(tr, $full.node(), $full.before(), tr.steps.length);\n }\n return tr;\n}\n/**\nTry to find a point where a node of the given type can be inserted\nnear `pos`, by searching up the node hierarchy when `pos` itself\nisn't a valid place but is at the start or end of a node. Return\nnull if no position was found.\n*/\nfunction insertPoint(doc, pos, nodeType) {\n let $pos = doc.resolve(pos);\n if ($pos.parent.canReplaceWith($pos.index(), $pos.index(), nodeType))\n return pos;\n if ($pos.parentOffset == 0)\n for (let d = $pos.depth - 1; d >= 0; d--) {\n let index = $pos.index(d);\n if ($pos.node(d).canReplaceWith(index, index, nodeType))\n return $pos.before(d + 1);\n if (index > 0)\n return null;\n }\n if ($pos.parentOffset == $pos.parent.content.size)\n for (let d = $pos.depth - 1; d >= 0; d--) {\n let index = $pos.indexAfter(d);\n if ($pos.node(d).canReplaceWith(index, index, nodeType))\n return $pos.after(d + 1);\n if (index < $pos.node(d).childCount)\n return null;\n }\n return null;\n}\n/**\nFinds a position at or around the given position where the given\nslice can be inserted. Will look at parent nodes' nearest boundary\nand try there, even if the original position wasn't directly at the\nstart or end of that node. Returns null when no position was found.\n*/\nfunction dropPoint(doc, pos, slice) {\n let $pos = doc.resolve(pos);\n if (!slice.content.size)\n return pos;\n let content = slice.content;\n for (let i = 0; i < slice.openStart; i++)\n content = content.firstChild.content;\n for (let pass = 1; pass <= (slice.openStart == 0 && slice.size ? 2 : 1); pass++) {\n for (let d = $pos.depth; d >= 0; d--) {\n let bias = d == $pos.depth ? 0 : $pos.pos <= ($pos.start(d + 1) + $pos.end(d + 1)) / 2 ? -1 : 1;\n let insertPos = $pos.index(d) + (bias > 0 ? 1 : 0);\n let parent = $pos.node(d), fits = false;\n if (pass == 1) {\n fits = parent.canReplace(insertPos, insertPos, content);\n }\n else {\n let wrapping = parent.contentMatchAt(insertPos).findWrapping(content.firstChild.type);\n fits = wrapping && parent.canReplaceWith(insertPos, insertPos, wrapping[0]);\n }\n if (fits)\n return bias == 0 ? $pos.pos : bias < 0 ? $pos.before(d + 1) : $pos.after(d + 1);\n }\n }\n return null;\n}\n\n/**\n‘Fit’ a slice into a given position in the document, producing a\n[step](https://prosemirror.net/docs/ref/#transform.Step) that inserts it. Will return null if\nthere's no meaningful way to insert the slice here, or inserting it\nwould be a no-op (an empty slice over an empty range).\n*/\nfunction replaceStep(doc, from, to = from, slice = prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice.empty) {\n if (from == to && !slice.size)\n return null;\n let $from = doc.resolve(from), $to = doc.resolve(to);\n // Optimization -- avoid work if it's obvious that it's not needed.\n if (fitsTrivially($from, $to, slice))\n return new ReplaceStep(from, to, slice);\n return new Fitter($from, $to, slice).fit();\n}\nfunction fitsTrivially($from, $to, slice) {\n return !slice.openStart && !slice.openEnd && $from.start() == $to.start() &&\n $from.parent.canReplace($from.index(), $to.index(), slice.content);\n}\n// Algorithm for 'placing' the elements of a slice into a gap:\n//\n// We consider the content of each node that is open to the left to be\n// independently placeable. I.e. in , when the\n// paragraph on the left is open, \"foo\" can be placed (somewhere on\n// the left side of the replacement gap) independently from p(\"bar\").\n//\n// This class tracks the state of the placement progress in the\n// following properties:\n//\n// - `frontier` holds a stack of `{type, match}` objects that\n// represent the open side of the replacement. It starts at\n// `$from`, then moves forward as content is placed, and is finally\n// reconciled with `$to`.\n//\n// - `unplaced` is a slice that represents the content that hasn't\n// been placed yet.\n//\n// - `placed` is a fragment of placed content. Its open-start value\n// is implicit in `$from`, and its open-end value in `frontier`.\nclass Fitter {\n constructor($from, $to, unplaced) {\n this.$from = $from;\n this.$to = $to;\n this.unplaced = unplaced;\n this.frontier = [];\n this.placed = prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.empty;\n for (let i = 0; i <= $from.depth; i++) {\n let node = $from.node(i);\n this.frontier.push({\n type: node.type,\n match: node.contentMatchAt($from.indexAfter(i))\n });\n }\n for (let i = $from.depth; i > 0; i--)\n this.placed = prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from($from.node(i).copy(this.placed));\n }\n get depth() { return this.frontier.length - 1; }\n fit() {\n // As long as there's unplaced content, try to place some of it.\n // If that fails, either increase the open score of the unplaced\n // slice, or drop nodes from it, and then try again.\n while (this.unplaced.size) {\n let fit = this.findFittable();\n if (fit)\n this.placeNodes(fit);\n else\n this.openMore() || this.dropNode();\n }\n // When there's inline content directly after the frontier _and_\n // directly after `this.$to`, we must generate a `ReplaceAround`\n // step that pulls that content into the node after the frontier.\n // That means the fitting must be done to the end of the textblock\n // node after `this.$to`, not `this.$to` itself.\n let moveInline = this.mustMoveInline(), placedSize = this.placed.size - this.depth - this.$from.depth;\n let $from = this.$from, $to = this.close(moveInline < 0 ? this.$to : $from.doc.resolve(moveInline));\n if (!$to)\n return null;\n // If closing to `$to` succeeded, create a step\n let content = this.placed, openStart = $from.depth, openEnd = $to.depth;\n while (openStart && openEnd && content.childCount == 1) { // Normalize by dropping open parent nodes\n content = content.firstChild.content;\n openStart--;\n openEnd--;\n }\n let slice = new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(content, openStart, openEnd);\n if (moveInline > -1)\n return new ReplaceAroundStep($from.pos, moveInline, this.$to.pos, this.$to.end(), slice, placedSize);\n if (slice.size || $from.pos != this.$to.pos) // Don't generate no-op steps\n return new ReplaceStep($from.pos, $to.pos, slice);\n return null;\n }\n // Find a position on the start spine of `this.unplaced` that has\n // content that can be moved somewhere on the frontier. Returns two\n // depths, one for the slice and one for the frontier.\n findFittable() {\n let startDepth = this.unplaced.openStart;\n for (let cur = this.unplaced.content, d = 0, openEnd = this.unplaced.openEnd; d < startDepth; d++) {\n let node = cur.firstChild;\n if (cur.childCount > 1)\n openEnd = 0;\n if (node.type.spec.isolating && openEnd <= d) {\n startDepth = d;\n break;\n }\n cur = node.content;\n }\n // Only try wrapping nodes (pass 2) after finding a place without\n // wrapping failed.\n for (let pass = 1; pass <= 2; pass++) {\n for (let sliceDepth = pass == 1 ? startDepth : this.unplaced.openStart; sliceDepth >= 0; sliceDepth--) {\n let fragment, parent = null;\n if (sliceDepth) {\n parent = contentAt(this.unplaced.content, sliceDepth - 1).firstChild;\n fragment = parent.content;\n }\n else {\n fragment = this.unplaced.content;\n }\n let first = fragment.firstChild;\n for (let frontierDepth = this.depth; frontierDepth >= 0; frontierDepth--) {\n let { type, match } = this.frontier[frontierDepth], wrap, inject = null;\n // In pass 1, if the next node matches, or there is no next\n // node but the parents look compatible, we've found a\n // place.\n if (pass == 1 && (first ? match.matchType(first.type) || (inject = match.fillBefore(prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(first), false))\n : parent && type.compatibleContent(parent.type)))\n return { sliceDepth, frontierDepth, parent, inject };\n // In pass 2, look for a set of wrapping nodes that make\n // `first` fit here.\n else if (pass == 2 && first && (wrap = match.findWrapping(first.type)))\n return { sliceDepth, frontierDepth, parent, wrap };\n // Don't continue looking further up if the parent node\n // would fit here.\n if (parent && match.matchType(parent.type))\n break;\n }\n }\n }\n }\n openMore() {\n let { content, openStart, openEnd } = this.unplaced;\n let inner = contentAt(content, openStart);\n if (!inner.childCount || inner.firstChild.isLeaf)\n return false;\n this.unplaced = new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(content, openStart + 1, Math.max(openEnd, inner.size + openStart >= content.size - openEnd ? openStart + 1 : 0));\n return true;\n }\n dropNode() {\n let { content, openStart, openEnd } = this.unplaced;\n let inner = contentAt(content, openStart);\n if (inner.childCount <= 1 && openStart > 0) {\n let openAtEnd = content.size - openStart <= openStart + inner.size;\n this.unplaced = new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(dropFromFragment(content, openStart - 1, 1), openStart - 1, openAtEnd ? openStart - 1 : openEnd);\n }\n else {\n this.unplaced = new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(dropFromFragment(content, openStart, 1), openStart, openEnd);\n }\n }\n // Move content from the unplaced slice at `sliceDepth` to the\n // frontier node at `frontierDepth`. Close that frontier node when\n // applicable.\n placeNodes({ sliceDepth, frontierDepth, parent, inject, wrap }) {\n while (this.depth > frontierDepth)\n this.closeFrontierNode();\n if (wrap)\n for (let i = 0; i < wrap.length; i++)\n this.openFrontierNode(wrap[i]);\n let slice = this.unplaced, fragment = parent ? parent.content : slice.content;\n let openStart = slice.openStart - sliceDepth;\n let taken = 0, add = [];\n let { match, type } = this.frontier[frontierDepth];\n if (inject) {\n for (let i = 0; i < inject.childCount; i++)\n add.push(inject.child(i));\n match = match.matchFragment(inject);\n }\n // Computes the amount of (end) open nodes at the end of the\n // fragment. When 0, the parent is open, but no more. When\n // negative, nothing is open.\n let openEndCount = (fragment.size + sliceDepth) - (slice.content.size - slice.openEnd);\n // Scan over the fragment, fitting as many child nodes as\n // possible.\n while (taken < fragment.childCount) {\n let next = fragment.child(taken), matches = match.matchType(next.type);\n if (!matches)\n break;\n taken++;\n if (taken > 1 || openStart == 0 || next.content.size) { // Drop empty open nodes\n match = matches;\n add.push(closeNodeStart(next.mark(type.allowedMarks(next.marks)), taken == 1 ? openStart : 0, taken == fragment.childCount ? openEndCount : -1));\n }\n }\n let toEnd = taken == fragment.childCount;\n if (!toEnd)\n openEndCount = -1;\n this.placed = addToFragment(this.placed, frontierDepth, prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(add));\n this.frontier[frontierDepth].match = match;\n // If the parent types match, and the entire node was moved, and\n // it's not open, close this frontier node right away.\n if (toEnd && openEndCount < 0 && parent && parent.type == this.frontier[this.depth].type && this.frontier.length > 1)\n this.closeFrontierNode();\n // Add new frontier nodes for any open nodes at the end.\n for (let i = 0, cur = fragment; i < openEndCount; i++) {\n let node = cur.lastChild;\n this.frontier.push({ type: node.type, match: node.contentMatchAt(node.childCount) });\n cur = node.content;\n }\n // Update `this.unplaced`. Drop the entire node from which we\n // placed it we got to its end, otherwise just drop the placed\n // nodes.\n this.unplaced = !toEnd ? new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(dropFromFragment(slice.content, sliceDepth, taken), slice.openStart, slice.openEnd)\n : sliceDepth == 0 ? prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice.empty\n : new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(dropFromFragment(slice.content, sliceDepth - 1, 1), sliceDepth - 1, openEndCount < 0 ? slice.openEnd : sliceDepth - 1);\n }\n mustMoveInline() {\n if (!this.$to.parent.isTextblock)\n return -1;\n let top = this.frontier[this.depth], level;\n if (!top.type.isTextblock || !contentAfterFits(this.$to, this.$to.depth, top.type, top.match, false) ||\n (this.$to.depth == this.depth && (level = this.findCloseLevel(this.$to)) && level.depth == this.depth))\n return -1;\n let { depth } = this.$to, after = this.$to.after(depth);\n while (depth > 1 && after == this.$to.end(--depth))\n ++after;\n return after;\n }\n findCloseLevel($to) {\n scan: for (let i = Math.min(this.depth, $to.depth); i >= 0; i--) {\n let { match, type } = this.frontier[i];\n let dropInner = i < $to.depth && $to.end(i + 1) == $to.pos + ($to.depth - (i + 1));\n let fit = contentAfterFits($to, i, type, match, dropInner);\n if (!fit)\n continue;\n for (let d = i - 1; d >= 0; d--) {\n let { match, type } = this.frontier[d];\n let matches = contentAfterFits($to, d, type, match, true);\n if (!matches || matches.childCount)\n continue scan;\n }\n return { depth: i, fit, move: dropInner ? $to.doc.resolve($to.after(i + 1)) : $to };\n }\n }\n close($to) {\n let close = this.findCloseLevel($to);\n if (!close)\n return null;\n while (this.depth > close.depth)\n this.closeFrontierNode();\n if (close.fit.childCount)\n this.placed = addToFragment(this.placed, close.depth, close.fit);\n $to = close.move;\n for (let d = close.depth + 1; d <= $to.depth; d++) {\n let node = $to.node(d), add = node.type.contentMatch.fillBefore(node.content, true, $to.index(d));\n this.openFrontierNode(node.type, node.attrs, add);\n }\n return $to;\n }\n openFrontierNode(type, attrs = null, content) {\n let top = this.frontier[this.depth];\n top.match = top.match.matchType(type);\n this.placed = addToFragment(this.placed, this.depth, prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(type.create(attrs, content)));\n this.frontier.push({ type, match: type.contentMatch });\n }\n closeFrontierNode() {\n let open = this.frontier.pop();\n let add = open.match.fillBefore(prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.empty, true);\n if (add.childCount)\n this.placed = addToFragment(this.placed, this.frontier.length, add);\n }\n}\nfunction dropFromFragment(fragment, depth, count) {\n if (depth == 0)\n return fragment.cutByIndex(count, fragment.childCount);\n return fragment.replaceChild(0, fragment.firstChild.copy(dropFromFragment(fragment.firstChild.content, depth - 1, count)));\n}\nfunction addToFragment(fragment, depth, content) {\n if (depth == 0)\n return fragment.append(content);\n return fragment.replaceChild(fragment.childCount - 1, fragment.lastChild.copy(addToFragment(fragment.lastChild.content, depth - 1, content)));\n}\nfunction contentAt(fragment, depth) {\n for (let i = 0; i < depth; i++)\n fragment = fragment.firstChild.content;\n return fragment;\n}\nfunction closeNodeStart(node, openStart, openEnd) {\n if (openStart <= 0)\n return node;\n let frag = node.content;\n if (openStart > 1)\n frag = frag.replaceChild(0, closeNodeStart(frag.firstChild, openStart - 1, frag.childCount == 1 ? openEnd - 1 : 0));\n if (openStart > 0) {\n frag = node.type.contentMatch.fillBefore(frag).append(frag);\n if (openEnd <= 0)\n frag = frag.append(node.type.contentMatch.matchFragment(frag).fillBefore(prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.empty, true));\n }\n return node.copy(frag);\n}\nfunction contentAfterFits($to, depth, type, match, open) {\n let node = $to.node(depth), index = open ? $to.indexAfter(depth) : $to.index(depth);\n if (index == node.childCount && !type.compatibleContent(node.type))\n return null;\n let fit = match.fillBefore(node.content, true, index);\n return fit && !invalidMarks(type, node.content, index) ? fit : null;\n}\nfunction invalidMarks(type, fragment, start) {\n for (let i = start; i < fragment.childCount; i++)\n if (!type.allowsMarks(fragment.child(i).marks))\n return true;\n return false;\n}\nfunction definesContent(type) {\n return type.spec.defining || type.spec.definingForContent;\n}\nfunction replaceRange(tr, from, to, slice) {\n if (!slice.size)\n return tr.deleteRange(from, to);\n let $from = tr.doc.resolve(from), $to = tr.doc.resolve(to);\n if (fitsTrivially($from, $to, slice))\n return tr.step(new ReplaceStep(from, to, slice));\n let targetDepths = coveredDepths($from, $to);\n // Can't replace the whole document, so remove 0 if it's present\n if (targetDepths[targetDepths.length - 1] == 0)\n targetDepths.pop();\n // Negative numbers represent not expansion over the whole node at\n // that depth, but replacing from $from.before(-D) to $to.pos.\n let preferredTarget = -($from.depth + 1);\n targetDepths.unshift(preferredTarget);\n // This loop picks a preferred target depth, if one of the covering\n // depths is not outside of a defining node, and adds negative\n // depths for any depth that has $from at its start and does not\n // cross a defining node.\n for (let d = $from.depth, pos = $from.pos - 1; d > 0; d--, pos--) {\n let spec = $from.node(d).type.spec;\n if (spec.defining || spec.definingAsContext || spec.isolating)\n break;\n if (targetDepths.indexOf(d) > -1)\n preferredTarget = d;\n else if ($from.before(d) == pos)\n targetDepths.splice(1, 0, -d);\n }\n // Try to fit each possible depth of the slice into each possible\n // target depth, starting with the preferred depths.\n let preferredTargetIndex = targetDepths.indexOf(preferredTarget);\n let leftNodes = [], preferredDepth = slice.openStart;\n for (let content = slice.content, i = 0;; i++) {\n let node = content.firstChild;\n leftNodes.push(node);\n if (i == slice.openStart)\n break;\n content = node.content;\n }\n // Back up preferredDepth to cover defining textblocks directly\n // above it, possibly skipping a non-defining textblock.\n for (let d = preferredDepth - 1; d >= 0; d--) {\n let leftNode = leftNodes[d], def = definesContent(leftNode.type);\n if (def && !leftNode.sameMarkup($from.node(Math.abs(preferredTarget) - 1)))\n preferredDepth = d;\n else if (def || !leftNode.type.isTextblock)\n break;\n }\n for (let j = slice.openStart; j >= 0; j--) {\n let openDepth = (j + preferredDepth + 1) % (slice.openStart + 1);\n let insert = leftNodes[openDepth];\n if (!insert)\n continue;\n for (let i = 0; i < targetDepths.length; i++) {\n // Loop over possible expansion levels, starting with the\n // preferred one\n let targetDepth = targetDepths[(i + preferredTargetIndex) % targetDepths.length], expand = true;\n if (targetDepth < 0) {\n expand = false;\n targetDepth = -targetDepth;\n }\n let parent = $from.node(targetDepth - 1), index = $from.index(targetDepth - 1);\n if (parent.canReplaceWith(index, index, insert.type, insert.marks))\n return tr.replace($from.before(targetDepth), expand ? $to.after(targetDepth) : to, new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(closeFragment(slice.content, 0, slice.openStart, openDepth), openDepth, slice.openEnd));\n }\n }\n let startSteps = tr.steps.length;\n for (let i = targetDepths.length - 1; i >= 0; i--) {\n tr.replace(from, to, slice);\n if (tr.steps.length > startSteps)\n break;\n let depth = targetDepths[i];\n if (depth < 0)\n continue;\n from = $from.before(depth);\n to = $to.after(depth);\n }\n}\nfunction closeFragment(fragment, depth, oldOpen, newOpen, parent) {\n if (depth < oldOpen) {\n let first = fragment.firstChild;\n fragment = fragment.replaceChild(0, first.copy(closeFragment(first.content, depth + 1, oldOpen, newOpen, first)));\n }\n if (depth > newOpen) {\n let match = parent.contentMatchAt(0);\n let start = match.fillBefore(fragment).append(fragment);\n fragment = start.append(match.matchFragment(start).fillBefore(prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.empty, true));\n }\n return fragment;\n}\nfunction replaceRangeWith(tr, from, to, node) {\n if (!node.isInline && from == to && tr.doc.resolve(from).parent.content.size) {\n let point = insertPoint(tr.doc, from, node.type);\n if (point != null)\n from = to = point;\n }\n tr.replaceRange(from, to, new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(node), 0, 0));\n}\nfunction deleteRange(tr, from, to) {\n let $from = tr.doc.resolve(from), $to = tr.doc.resolve(to);\n let covered = coveredDepths($from, $to);\n for (let i = 0; i < covered.length; i++) {\n let depth = covered[i], last = i == covered.length - 1;\n if ((last && depth == 0) || $from.node(depth).type.contentMatch.validEnd)\n return tr.delete($from.start(depth), $to.end(depth));\n if (depth > 0 && (last || $from.node(depth - 1).canReplace($from.index(depth - 1), $to.indexAfter(depth - 1))))\n return tr.delete($from.before(depth), $to.after(depth));\n }\n for (let d = 1; d <= $from.depth && d <= $to.depth; d++) {\n if (from - $from.start(d) == $from.depth - d && to > $from.end(d) && $to.end(d) - to != $to.depth - d &&\n $from.start(d - 1) == $to.start(d - 1) && $from.node(d - 1).canReplace($from.index(d - 1), $to.index(d - 1)))\n return tr.delete($from.before(d), to);\n }\n tr.delete(from, to);\n}\n// Returns an array of all depths for which $from - $to spans the\n// whole content of the nodes at that depth.\nfunction coveredDepths($from, $to) {\n let result = [], minDepth = Math.min($from.depth, $to.depth);\n for (let d = minDepth; d >= 0; d--) {\n let start = $from.start(d);\n if (start < $from.pos - ($from.depth - d) ||\n $to.end(d) > $to.pos + ($to.depth - d) ||\n $from.node(d).type.spec.isolating ||\n $to.node(d).type.spec.isolating)\n break;\n if (start == $to.start(d) ||\n (d == $from.depth && d == $to.depth && $from.parent.inlineContent && $to.parent.inlineContent &&\n d && $to.start(d - 1) == start - 1))\n result.push(d);\n }\n return result;\n}\n\n/**\nUpdate an attribute in a specific node.\n*/\nclass AttrStep extends Step {\n /**\n Construct an attribute step.\n */\n constructor(\n /**\n The position of the target node.\n */\n pos, \n /**\n The attribute to set.\n */\n attr, \n // The attribute's new value.\n value) {\n super();\n this.pos = pos;\n this.attr = attr;\n this.value = value;\n }\n apply(doc) {\n let node = doc.nodeAt(this.pos);\n if (!node)\n return StepResult.fail(\"No node at attribute step's position\");\n let attrs = Object.create(null);\n for (let name in node.attrs)\n attrs[name] = node.attrs[name];\n attrs[this.attr] = this.value;\n let updated = node.type.create(attrs, null, node.marks);\n return StepResult.fromReplace(doc, this.pos, this.pos + 1, new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(updated), 0, node.isLeaf ? 0 : 1));\n }\n getMap() {\n return StepMap.empty;\n }\n invert(doc) {\n return new AttrStep(this.pos, this.attr, doc.nodeAt(this.pos).attrs[this.attr]);\n }\n map(mapping) {\n let pos = mapping.mapResult(this.pos, 1);\n return pos.deletedAfter ? null : new AttrStep(pos.pos, this.attr, this.value);\n }\n toJSON() {\n return { stepType: \"attr\", pos: this.pos, attr: this.attr, value: this.value };\n }\n static fromJSON(schema, json) {\n if (typeof json.pos != \"number\" || typeof json.attr != \"string\")\n throw new RangeError(\"Invalid input for AttrStep.fromJSON\");\n return new AttrStep(json.pos, json.attr, json.value);\n }\n}\nStep.jsonID(\"attr\", AttrStep);\n/**\nUpdate an attribute in the doc node.\n*/\nclass DocAttrStep extends Step {\n /**\n Construct an attribute step.\n */\n constructor(\n /**\n The attribute to set.\n */\n attr, \n // The attribute's new value.\n value) {\n super();\n this.attr = attr;\n this.value = value;\n }\n apply(doc) {\n let attrs = Object.create(null);\n for (let name in doc.attrs)\n attrs[name] = doc.attrs[name];\n attrs[this.attr] = this.value;\n let updated = doc.type.create(attrs, doc.content, doc.marks);\n return StepResult.ok(updated);\n }\n getMap() {\n return StepMap.empty;\n }\n invert(doc) {\n return new DocAttrStep(this.attr, doc.attrs[this.attr]);\n }\n map(mapping) {\n return this;\n }\n toJSON() {\n return { stepType: \"docAttr\", attr: this.attr, value: this.value };\n }\n static fromJSON(schema, json) {\n if (typeof json.attr != \"string\")\n throw new RangeError(\"Invalid input for DocAttrStep.fromJSON\");\n return new DocAttrStep(json.attr, json.value);\n }\n}\nStep.jsonID(\"docAttr\", DocAttrStep);\n\n/**\n@internal\n*/\nlet TransformError = class extends Error {\n};\nTransformError = function TransformError(message) {\n let err = Error.call(this, message);\n err.__proto__ = TransformError.prototype;\n return err;\n};\nTransformError.prototype = Object.create(Error.prototype);\nTransformError.prototype.constructor = TransformError;\nTransformError.prototype.name = \"TransformError\";\n/**\nAbstraction to build up and track an array of\n[steps](https://prosemirror.net/docs/ref/#transform.Step) representing a document transformation.\n\nMost transforming methods return the `Transform` object itself, so\nthat they can be chained.\n*/\nclass Transform {\n /**\n Create a transform that starts with the given document.\n */\n constructor(\n /**\n The current document (the result of applying the steps in the\n transform).\n */\n doc) {\n this.doc = doc;\n /**\n The steps in this transform.\n */\n this.steps = [];\n /**\n The documents before each of the steps.\n */\n this.docs = [];\n /**\n A mapping with the maps for each of the steps in this transform.\n */\n this.mapping = new Mapping;\n }\n /**\n The starting document.\n */\n get before() { return this.docs.length ? this.docs[0] : this.doc; }\n /**\n Apply a new step in this transform, saving the result. Throws an\n error when the step fails.\n */\n step(step) {\n let result = this.maybeStep(step);\n if (result.failed)\n throw new TransformError(result.failed);\n return this;\n }\n /**\n Try to apply a step in this transformation, ignoring it if it\n fails. Returns the step result.\n */\n maybeStep(step) {\n let result = step.apply(this.doc);\n if (!result.failed)\n this.addStep(step, result.doc);\n return result;\n }\n /**\n True when the document has been changed (when there are any\n steps).\n */\n get docChanged() {\n return this.steps.length > 0;\n }\n /**\n Return a single range, in post-transform document positions,\n that covers all content changed by this transform. Returns null\n if no replacements are made. Note that this will ignore changes\n that add/remove marks without replacing the underlying content.\n */\n changedRange() {\n let from = 1e9, to = -1e9;\n for (let i = 0; i < this.mapping.maps.length; i++) {\n let map = this.mapping.maps[i];\n if (i) {\n from = map.map(from, 1);\n to = map.map(to, -1);\n }\n map.forEach((_f, _t, fromB, toB) => {\n from = Math.min(from, fromB);\n to = Math.max(to, toB);\n });\n }\n return from == 1e9 ? null : { from, to };\n }\n /**\n @internal\n */\n addStep(step, doc) {\n this.docs.push(this.doc);\n this.steps.push(step);\n this.mapping.appendMap(step.getMap());\n this.doc = doc;\n }\n /**\n Replace the part of the document between `from` and `to` with the\n given `slice`.\n */\n replace(from, to = from, slice = prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice.empty) {\n let step = replaceStep(this.doc, from, to, slice);\n if (step)\n this.step(step);\n return this;\n }\n /**\n Replace the given range with the given content, which may be a\n fragment, node, or array of nodes.\n */\n replaceWith(from, to, content) {\n return this.replace(from, to, new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(content), 0, 0));\n }\n /**\n Delete the content between the given positions.\n */\n delete(from, to) {\n return this.replace(from, to, prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice.empty);\n }\n /**\n Insert the given content at the given position.\n */\n insert(pos, content) {\n return this.replaceWith(pos, pos, content);\n }\n /**\n Replace a range of the document with a given slice, using\n `from`, `to`, and the slice's\n [`openStart`](https://prosemirror.net/docs/ref/#model.Slice.openStart) property as hints, rather\n than fixed start and end points. This method may grow the\n replaced area or close open nodes in the slice in order to get a\n fit that is more in line with WYSIWYG expectations, by dropping\n fully covered parent nodes of the replaced region when they are\n marked [non-defining as\n context](https://prosemirror.net/docs/ref/#model.NodeSpec.definingAsContext), or including an\n open parent node from the slice that _is_ marked as [defining\n its content](https://prosemirror.net/docs/ref/#model.NodeSpec.definingForContent).\n \n This is the method, for example, to handle paste. The similar\n [`replace`](https://prosemirror.net/docs/ref/#transform.Transform.replace) method is a more\n primitive tool which will _not_ move the start and end of its given\n range, and is useful in situations where you need more precise\n control over what happens.\n */\n replaceRange(from, to, slice) {\n replaceRange(this, from, to, slice);\n return this;\n }\n /**\n Replace the given range with a node, but use `from` and `to` as\n hints, rather than precise positions. When from and to are the same\n and are at the start or end of a parent node in which the given\n node doesn't fit, this method may _move_ them out towards a parent\n that does allow the given node to be placed. When the given range\n completely covers a parent node, this method may completely replace\n that parent node.\n */\n replaceRangeWith(from, to, node) {\n replaceRangeWith(this, from, to, node);\n return this;\n }\n /**\n Delete the given range, expanding it to cover fully covered\n parent nodes until a valid replace is found.\n */\n deleteRange(from, to) {\n deleteRange(this, from, to);\n return this;\n }\n /**\n Split the content in the given range off from its parent, if there\n is sibling content before or after it, and move it up the tree to\n the depth specified by `target`. You'll probably want to use\n [`liftTarget`](https://prosemirror.net/docs/ref/#transform.liftTarget) to compute `target`, to make\n sure the lift is valid.\n */\n lift(range, target) {\n lift(this, range, target);\n return this;\n }\n /**\n Join the blocks around the given position. If depth is 2, their\n last and first siblings are also joined, and so on.\n */\n join(pos, depth = 1) {\n join(this, pos, depth);\n return this;\n }\n /**\n Wrap the given [range](https://prosemirror.net/docs/ref/#model.NodeRange) in the given set of wrappers.\n The wrappers are assumed to be valid in this position, and should\n probably be computed with [`findWrapping`](https://prosemirror.net/docs/ref/#transform.findWrapping).\n */\n wrap(range, wrappers) {\n wrap(this, range, wrappers);\n return this;\n }\n /**\n Set the type of all textblocks (partly) between `from` and `to` to\n the given node type with the given attributes.\n */\n setBlockType(from, to = from, type, attrs = null) {\n setBlockType(this, from, to, type, attrs);\n return this;\n }\n /**\n Change the type, attributes, and/or marks of the node at `pos`.\n When `type` isn't given, the existing node type is preserved,\n */\n setNodeMarkup(pos, type, attrs = null, marks) {\n setNodeMarkup(this, pos, type, attrs, marks);\n return this;\n }\n /**\n Set a single attribute on a given node to a new value.\n The `pos` addresses the document content. Use `setDocAttribute`\n to set attributes on the document itself.\n */\n setNodeAttribute(pos, attr, value) {\n this.step(new AttrStep(pos, attr, value));\n return this;\n }\n /**\n Set a single attribute on the document to a new value.\n */\n setDocAttribute(attr, value) {\n this.step(new DocAttrStep(attr, value));\n return this;\n }\n /**\n Add a mark to the node at position `pos`.\n */\n addNodeMark(pos, mark) {\n this.step(new AddNodeMarkStep(pos, mark));\n return this;\n }\n /**\n Remove a mark (or all marks of the given type) from the node at\n position `pos`.\n */\n removeNodeMark(pos, mark) {\n let node = this.doc.nodeAt(pos);\n if (!node)\n throw new RangeError(\"No node at position \" + pos);\n if (mark instanceof prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Mark) {\n if (mark.isInSet(node.marks))\n this.step(new RemoveNodeMarkStep(pos, mark));\n }\n else {\n let set = node.marks, found, steps = [];\n while (found = mark.isInSet(set)) {\n steps.push(new RemoveNodeMarkStep(pos, found));\n set = found.removeFromSet(set);\n }\n for (let i = steps.length - 1; i >= 0; i--)\n this.step(steps[i]);\n }\n return this;\n }\n /**\n Split the node at the given position, and optionally, if `depth` is\n greater than one, any number of nodes above that. By default, the\n parts split off will inherit the node type of the original node.\n This can be changed by passing an array of types and attributes to\n use after the split (with the outermost nodes coming first).\n */\n split(pos, depth = 1, typesAfter) {\n split(this, pos, depth, typesAfter);\n return this;\n }\n /**\n Add the given mark to the inline content between `from` and `to`.\n */\n addMark(from, to, mark) {\n addMark(this, from, to, mark);\n return this;\n }\n /**\n Remove marks from inline nodes between `from` and `to`. When\n `mark` is a single mark, remove precisely that mark. When it is\n a mark type, remove all marks of that type. When it is null,\n remove all marks of any type.\n */\n removeMark(from, to, mark) {\n removeMark(this, from, to, mark);\n return this;\n }\n /**\n Removes all marks and nodes from the content of the node at\n `pos` that don't match the given new parent node type. Accepts\n an optional starting [content match](https://prosemirror.net/docs/ref/#model.ContentMatch) as\n third argument.\n */\n clearIncompatible(pos, parentType, match) {\n clearIncompatible(this, pos, parentType, match);\n return this;\n }\n}\n\n\n//# sourceURL=[module]\n//# 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{ ReplaceError, Slice, Fragment, MarkType, Mark } from 'prosemirror-model';\n\n// Recovery values encode a range index and an offset. They are\n// represented as numbers, because tons of them will be created when\n// mapping, for example, a large number of decorations. The number's\n// lower 16 bits provide the index, the remaining bits the offset.\n//\n// Note: We intentionally don't use bit shift operators to en- and\n// decode these, since those clip to 32 bits, which we might in rare\n// cases want to overflow. A 64-bit float can represent 48-bit\n// integers precisely.\nconst lower16 = 0xffff;\nconst factor16 = Math.pow(2, 16);\nfunction makeRecover(index, offset) { return index + offset * factor16; }\nfunction recoverIndex(value) { return value & lower16; }\nfunction recoverOffset(value) { return (value - (value & lower16)) / factor16; }\nconst DEL_BEFORE = 1, DEL_AFTER = 2, DEL_ACROSS = 4, DEL_SIDE = 8;\n/**\nAn object representing a mapped position with extra\ninformation.\n*/\nclass MapResult {\n    /**\n    @internal\n    */\n    constructor(\n    /**\n    The mapped version of the position.\n    */\n    pos, \n    /**\n    @internal\n    */\n    delInfo, \n    /**\n    @internal\n    */\n    recover) {\n        this.pos = pos;\n        this.delInfo = delInfo;\n        this.recover = recover;\n    }\n    /**\n    Tells you whether the position was deleted, that is, whether the\n    step removed the token on the side queried (via the `assoc`)\n    argument from the document.\n    */\n    get deleted() { return (this.delInfo & DEL_SIDE) > 0; }\n    /**\n    Tells you whether the token before the mapped position was deleted.\n    */\n    get deletedBefore() { return (this.delInfo & (DEL_BEFORE | DEL_ACROSS)) > 0; }\n    /**\n    True when the token after the mapped position was deleted.\n    */\n    get deletedAfter() { return (this.delInfo & (DEL_AFTER | DEL_ACROSS)) > 0; }\n    /**\n    Tells whether any of the steps mapped through deletes across the\n    position (including both the token before and after the\n    position).\n    */\n    get deletedAcross() { return (this.delInfo & DEL_ACROSS) > 0; }\n}\n/**\nA map describing the deletions and insertions made by a step, which\ncan be used to find the correspondence between positions in the\npre-step version of a document and the same position in the\npost-step version.\n*/\nclass StepMap {\n    /**\n    Create a position map. The modifications to the document are\n    represented as an array of numbers, in which each group of three\n    represents a modified chunk as `[start, oldSize, newSize]`.\n    */\n    constructor(\n    /**\n    @internal\n    */\n    ranges, \n    /**\n    @internal\n    */\n    inverted = false) {\n        this.ranges = ranges;\n        this.inverted = inverted;\n        if (!ranges.length && StepMap.empty)\n            return StepMap.empty;\n    }\n    /**\n    @internal\n    */\n    recover(value) {\n        let diff = 0, index = recoverIndex(value);\n        if (!this.inverted)\n            for (let i = 0; i < index; i++)\n                diff += this.ranges[i * 3 + 2] - this.ranges[i * 3 + 1];\n        return this.ranges[index * 3] + diff + recoverOffset(value);\n    }\n    mapResult(pos, assoc = 1) { return this._map(pos, assoc, false); }\n    map(pos, assoc = 1) { return this._map(pos, assoc, true); }\n    /**\n    @internal\n    */\n    _map(pos, assoc, simple) {\n        let diff = 0, oldIndex = this.inverted ? 2 : 1, newIndex = this.inverted ? 1 : 2;\n        for (let i = 0; i < this.ranges.length; i += 3) {\n            let start = this.ranges[i] - (this.inverted ? diff : 0);\n            if (start > pos)\n                break;\n            let oldSize = this.ranges[i + oldIndex], newSize = this.ranges[i + newIndex], end = start + oldSize;\n            if (pos <= end) {\n                let side = !oldSize ? assoc : pos == start ? -1 : pos == end ? 1 : assoc;\n                let result = start + diff + (side < 0 ? 0 : newSize);\n                if (simple)\n                    return result;\n                let recover = pos == (assoc < 0 ? start : end) ? null : makeRecover(i / 3, pos - start);\n                let del = pos == start ? DEL_AFTER : pos == end ? DEL_BEFORE : DEL_ACROSS;\n                if (assoc < 0 ? pos != start : pos != end)\n                    del |= DEL_SIDE;\n                return new MapResult(result, del, recover);\n            }\n            diff += newSize - oldSize;\n        }\n        return simple ? pos + diff : new MapResult(pos + diff, 0, null);\n    }\n    /**\n    @internal\n    */\n    touches(pos, recover) {\n        let diff = 0, index = recoverIndex(recover);\n        let oldIndex = this.inverted ? 2 : 1, newIndex = this.inverted ? 1 : 2;\n        for (let i = 0; i < this.ranges.length; i += 3) {\n            let start = this.ranges[i] - (this.inverted ? diff : 0);\n            if (start > pos)\n                break;\n            let oldSize = this.ranges[i + oldIndex], end = start + oldSize;\n            if (pos <= end && i == index * 3)\n                return true;\n            diff += this.ranges[i + newIndex] - oldSize;\n        }\n        return false;\n    }\n    /**\n    Calls the given function on each of the changed ranges included in\n    this map.\n    */\n    forEach(f) {\n        let oldIndex = this.inverted ? 2 : 1, newIndex = this.inverted ? 1 : 2;\n        for (let i = 0, diff = 0; i < this.ranges.length; i += 3) {\n            let start = this.ranges[i], oldStart = start - (this.inverted ? diff : 0), newStart = start + (this.inverted ? 0 : diff);\n            let oldSize = this.ranges[i + oldIndex], newSize = this.ranges[i + newIndex];\n            f(oldStart, oldStart + oldSize, newStart, newStart + newSize);\n            diff += newSize - oldSize;\n        }\n    }\n    /**\n    Create an inverted version of this map. The result can be used to\n    map positions in the post-step document to the pre-step document.\n    */\n    invert() {\n        return new StepMap(this.ranges, !this.inverted);\n    }\n    /**\n    @internal\n    */\n    toString() {\n        return (this.inverted ? \"-\" : \"\") + JSON.stringify(this.ranges);\n    }\n    /**\n    Create a map that moves all positions by offset `n` (which may be\n    negative). This can be useful when applying steps meant for a\n    sub-document to a larger document, or vice-versa.\n    */\n    static offset(n) {\n        return n == 0 ? StepMap.empty : new StepMap(n < 0 ? [0, -n, 0] : [0, 0, n]);\n    }\n}\n/**\nA StepMap that contains no changed ranges.\n*/\nStepMap.empty = new StepMap([]);\n/**\nA mapping represents a pipeline of zero or more [step\nmaps](https://prosemirror.net/docs/ref/#transform.StepMap). It has special provisions for losslessly\nhandling mapping positions through a series of steps in which some\nsteps are inverted versions of earlier steps. (This comes up when\n‘[rebasing](https://prosemirror.net/docs/guide/#transform.rebasing)’ steps for\ncollaboration or history management.)\n*/\nclass Mapping {\n    /**\n    Create a new mapping with the given position maps.\n    */\n    constructor(maps, \n    /**\n    @internal\n    */\n    mirror, \n    /**\n    The starting position in the `maps` array, used when `map` or\n    `mapResult` is called.\n    */\n    from = 0, \n    /**\n    The end position in the `maps` array.\n    */\n    to = maps ? maps.length : 0) {\n        this.mirror = mirror;\n        this.from = from;\n        this.to = to;\n        this._maps = maps || [];\n        this.ownData = !(maps || mirror);\n    }\n    /**\n    The step maps in this mapping.\n    */\n    get maps() { return this._maps; }\n    /**\n    Create a mapping that maps only through a part of this one.\n    */\n    slice(from = 0, to = this.maps.length) {\n        return new Mapping(this._maps, this.mirror, from, to);\n    }\n    /**\n    Add a step map to the end of this mapping. If `mirrors` is\n    given, it should be the index of the step map that is the mirror\n    image of this one.\n    */\n    appendMap(map, mirrors) {\n        if (!this.ownData) {\n            this._maps = this._maps.slice();\n            this.mirror = this.mirror && this.mirror.slice();\n            this.ownData = true;\n        }\n        this.to = this._maps.push(map);\n        if (mirrors != null)\n            this.setMirror(this._maps.length - 1, mirrors);\n    }\n    /**\n    Add all the step maps in a given mapping to this one (preserving\n    mirroring information).\n    */\n    appendMapping(mapping) {\n        for (let i = 0, startSize = this._maps.length; i < mapping._maps.length; i++) {\n            let mirr = mapping.getMirror(i);\n            this.appendMap(mapping._maps[i], mirr != null && mirr < i ? startSize + mirr : undefined);\n        }\n    }\n    /**\n    Finds the offset of the step map that mirrors the map at the\n    given offset, in this mapping (as per the second argument to\n    `appendMap`).\n    */\n    getMirror(n) {\n        if (this.mirror)\n            for (let i = 0; i < this.mirror.length; i++)\n                if (this.mirror[i] == n)\n                    return this.mirror[i + (i % 2 ? -1 : 1)];\n    }\n    /**\n    @internal\n    */\n    setMirror(n, m) {\n        if (!this.mirror)\n            this.mirror = [];\n        this.mirror.push(n, m);\n    }\n    /**\n    Append the inverse of the given mapping to this one.\n    */\n    appendMappingInverted(mapping) {\n        for (let i = mapping.maps.length - 1, totalSize = this._maps.length + mapping._maps.length; i >= 0; i--) {\n            let mirr = mapping.getMirror(i);\n            this.appendMap(mapping._maps[i].invert(), mirr != null && mirr > i ? totalSize - mirr - 1 : undefined);\n        }\n    }\n    /**\n    Create an inverted version of this mapping.\n    */\n    invert() {\n        let inverse = new Mapping;\n        inverse.appendMappingInverted(this);\n        return inverse;\n    }\n    /**\n    Map a position through this mapping.\n    */\n    map(pos, assoc = 1) {\n        if (this.mirror)\n            return this._map(pos, assoc, true);\n        for (let i = this.from; i < this.to; i++)\n            pos = this._maps[i].map(pos, assoc);\n        return pos;\n    }\n    /**\n    Map a position through this mapping, returning a mapping\n    result.\n    */\n    mapResult(pos, assoc = 1) { return this._map(pos, assoc, false); }\n    /**\n    @internal\n    */\n    _map(pos, assoc, simple) {\n        let delInfo = 0;\n        for (let i = this.from; i < this.to; i++) {\n            let map = this._maps[i], result = map.mapResult(pos, assoc);\n            if (result.recover != null) {\n                let corr = this.getMirror(i);\n                if (corr != null && corr > i && corr < this.to) {\n                    i = corr;\n                    pos = this._maps[corr].recover(result.recover);\n                    continue;\n                }\n            }\n            delInfo |= result.delInfo;\n            pos = result.pos;\n        }\n        return simple ? pos : new MapResult(pos, delInfo, null);\n    }\n}\n\nconst stepsByID = Object.create(null);\n/**\nA step object represents an atomic change. It generally applies\nonly to the document it was created for, since the positions\nstored in it will only make sense for that document.\n\nNew steps are defined by creating classes that extend `Step`,\noverriding the `apply`, `invert`, `map`, `getMap` and `fromJSON`\nmethods, and registering your class with a unique\nJSON-serialization identifier using\n[`Step.jsonID`](https://prosemirror.net/docs/ref/#transform.Step^jsonID).\n*/\nclass Step {\n    /**\n    Get the step map that represents the changes made by this step,\n    and which can be used to transform between positions in the old\n    and the new document.\n    */\n    getMap() { return StepMap.empty; }\n    /**\n    Try to merge this step with another one, to be applied directly\n    after it. Returns the merged step when possible, null if the\n    steps can't be merged.\n    */\n    merge(other) { return null; }\n    /**\n    Deserialize a step from its JSON representation. Will call\n    through to the step class' own implementation of this method.\n    */\n    static fromJSON(schema, json) {\n        if (!json || !json.stepType)\n            throw new RangeError(\"Invalid input for Step.fromJSON\");\n        let type = stepsByID[json.stepType];\n        if (!type)\n            throw new RangeError(`No step type ${json.stepType} defined`);\n        return type.fromJSON(schema, json);\n    }\n    /**\n    To be able to serialize steps to JSON, each step needs a string\n    ID to attach to its JSON representation. Use this method to\n    register an ID for your step classes. Try to pick something\n    that's unlikely to clash with steps from other modules.\n    */\n    static jsonID(id, stepClass) {\n        if (id in stepsByID)\n            throw new RangeError(\"Duplicate use of step JSON ID \" + id);\n        stepsByID[id] = stepClass;\n        stepClass.prototype.jsonID = id;\n        return stepClass;\n    }\n}\n/**\nThe result of [applying](https://prosemirror.net/docs/ref/#transform.Step.apply) a step. Contains either a\nnew document or a failure value.\n*/\nclass StepResult {\n    /**\n    @internal\n    */\n    constructor(\n    /**\n    The transformed document, if successful.\n    */\n    doc, \n    /**\n    The failure message, if unsuccessful.\n    */\n    failed) {\n        this.doc = doc;\n        this.failed = failed;\n    }\n    /**\n    Create a successful step result.\n    */\n    static ok(doc) { return new StepResult(doc, null); }\n    /**\n    Create a failed step result.\n    */\n    static fail(message) { return new StepResult(null, message); }\n    /**\n    Call [`Node.replace`](https://prosemirror.net/docs/ref/#model.Node.replace) with the given\n    arguments. Create a successful result if it succeeds, and a\n    failed one if it throws a `ReplaceError`.\n    */\n    static fromReplace(doc, from, to, slice) {\n        try {\n            return StepResult.ok(doc.replace(from, to, slice));\n        }\n        catch (e) {\n            if (e instanceof ReplaceError)\n                return StepResult.fail(e.message);\n            throw e;\n        }\n    }\n}\n\nfunction mapFragment(fragment, f, parent) {\n    let mapped = [];\n    for (let i = 0; i < fragment.childCount; i++) {\n        let child = fragment.child(i);\n        if (child.content.size)\n            child = child.copy(mapFragment(child.content, f, child));\n        if (child.isInline)\n            child = f(child, parent, i);\n        mapped.push(child);\n    }\n    return Fragment.fromArray(mapped);\n}\n/**\nAdd a mark to all inline content between two positions.\n*/\nclass AddMarkStep extends Step {\n    /**\n    Create a mark step.\n    */\n    constructor(\n    /**\n    The start of the marked range.\n    */\n    from, \n    /**\n    The end of the marked range.\n    */\n    to, \n    /**\n    The mark to add.\n    */\n    mark) {\n        super();\n        this.from = from;\n        this.to = to;\n        this.mark = mark;\n    }\n    apply(doc) {\n        let oldSlice = doc.slice(this.from, this.to), $from = doc.resolve(this.from);\n        let parent = $from.node($from.sharedDepth(this.to));\n        let slice = new Slice(mapFragment(oldSlice.content, (node, parent) => {\n            if (!node.isAtom || !parent.type.allowsMarkType(this.mark.type))\n                return node;\n            return node.mark(this.mark.addToSet(node.marks));\n        }, parent), oldSlice.openStart, oldSlice.openEnd);\n        return StepResult.fromReplace(doc, this.from, this.to, slice);\n    }\n    invert() {\n        return new RemoveMarkStep(this.from, this.to, this.mark);\n    }\n    map(mapping) {\n        let from = mapping.mapResult(this.from, 1), to = mapping.mapResult(this.to, -1);\n        if (from.deleted && to.deleted || from.pos >= to.pos)\n            return null;\n        return new AddMarkStep(from.pos, to.pos, this.mark);\n    }\n    merge(other) {\n        if (other instanceof AddMarkStep &&\n            other.mark.eq(this.mark) &&\n            this.from <= other.to && this.to >= other.from)\n            return new AddMarkStep(Math.min(this.from, other.from), Math.max(this.to, other.to), this.mark);\n        return null;\n    }\n    toJSON() {\n        return { stepType: \"addMark\", mark: this.mark.toJSON(),\n            from: this.from, to: this.to };\n    }\n    /**\n    @internal\n    */\n    static fromJSON(schema, json) {\n        if (typeof json.from != \"number\" || typeof json.to != \"number\")\n            throw new RangeError(\"Invalid input for AddMarkStep.fromJSON\");\n        return new AddMarkStep(json.from, json.to, schema.markFromJSON(json.mark));\n    }\n}\nStep.jsonID(\"addMark\", AddMarkStep);\n/**\nRemove a mark from all inline content between two positions.\n*/\nclass RemoveMarkStep extends Step {\n    /**\n    Create a mark-removing step.\n    */\n    constructor(\n    /**\n    The start of the unmarked range.\n    */\n    from, \n    /**\n    The end of the unmarked range.\n    */\n    to, \n    /**\n    The mark to remove.\n    */\n    mark) {\n        super();\n        this.from = from;\n        this.to = to;\n        this.mark = mark;\n    }\n    apply(doc) {\n        let oldSlice = doc.slice(this.from, this.to);\n        let slice = new Slice(mapFragment(oldSlice.content, node => {\n            return node.mark(this.mark.removeFromSet(node.marks));\n        }, doc), oldSlice.openStart, oldSlice.openEnd);\n        return StepResult.fromReplace(doc, this.from, this.to, slice);\n    }\n    invert() {\n        return new AddMarkStep(this.from, this.to, this.mark);\n    }\n    map(mapping) {\n        let from = mapping.mapResult(this.from, 1), to = mapping.mapResult(this.to, -1);\n        if (from.deleted && to.deleted || from.pos >= to.pos)\n            return null;\n        return new RemoveMarkStep(from.pos, to.pos, this.mark);\n    }\n    merge(other) {\n        if (other instanceof RemoveMarkStep &&\n            other.mark.eq(this.mark) &&\n            this.from <= other.to && this.to >= other.from)\n            return new RemoveMarkStep(Math.min(this.from, other.from), Math.max(this.to, other.to), this.mark);\n        return null;\n    }\n    toJSON() {\n        return { stepType: \"removeMark\", mark: this.mark.toJSON(),\n            from: this.from, to: this.to };\n    }\n    /**\n    @internal\n    */\n    static fromJSON(schema, json) {\n        if (typeof json.from != \"number\" || typeof json.to != \"number\")\n            throw new RangeError(\"Invalid input for RemoveMarkStep.fromJSON\");\n        return new RemoveMarkStep(json.from, json.to, schema.markFromJSON(json.mark));\n    }\n}\nStep.jsonID(\"removeMark\", RemoveMarkStep);\n/**\nAdd a mark to a specific node.\n*/\nclass AddNodeMarkStep extends Step {\n    /**\n    Create a node mark step.\n    */\n    constructor(\n    /**\n    The position of the target node.\n    */\n    pos, \n    /**\n    The mark to add.\n    */\n    mark) {\n        super();\n        this.pos = pos;\n        this.mark = mark;\n    }\n    apply(doc) {\n        let node = doc.nodeAt(this.pos);\n        if (!node)\n            return StepResult.fail(\"No node at mark step's position\");\n        let updated = node.type.create(node.attrs, null, this.mark.addToSet(node.marks));\n        return StepResult.fromReplace(doc, this.pos, this.pos + 1, new Slice(Fragment.from(updated), 0, node.isLeaf ? 0 : 1));\n    }\n    invert(doc) {\n        let node = doc.nodeAt(this.pos);\n        if (node) {\n            let newSet = this.mark.addToSet(node.marks);\n            if (newSet.length == node.marks.length) {\n                for (let i = 0; i < node.marks.length; i++)\n                    if (!node.marks[i].isInSet(newSet))\n                        return new AddNodeMarkStep(this.pos, node.marks[i]);\n                return new AddNodeMarkStep(this.pos, this.mark);\n            }\n        }\n        return new RemoveNodeMarkStep(this.pos, this.mark);\n    }\n    map(mapping) {\n        let pos = mapping.mapResult(this.pos, 1);\n        return pos.deletedAfter ? null : new AddNodeMarkStep(pos.pos, this.mark);\n    }\n    toJSON() {\n        return { stepType: \"addNodeMark\", pos: this.pos, mark: this.mark.toJSON() };\n    }\n    /**\n    @internal\n    */\n    static fromJSON(schema, json) {\n        if (typeof json.pos != \"number\")\n            throw new RangeError(\"Invalid input for AddNodeMarkStep.fromJSON\");\n        return new AddNodeMarkStep(json.pos, schema.markFromJSON(json.mark));\n    }\n}\nStep.jsonID(\"addNodeMark\", AddNodeMarkStep);\n/**\nRemove a mark from a specific node.\n*/\nclass RemoveNodeMarkStep extends Step {\n    /**\n    Create a mark-removing step.\n    */\n    constructor(\n    /**\n    The position of the target node.\n    */\n    pos, \n    /**\n    The mark to remove.\n    */\n    mark) {\n        super();\n        this.pos = pos;\n        this.mark = mark;\n    }\n    apply(doc) {\n        let node = doc.nodeAt(this.pos);\n        if (!node)\n            return StepResult.fail(\"No node at mark step's position\");\n        let updated = node.type.create(node.attrs, null, this.mark.removeFromSet(node.marks));\n        return StepResult.fromReplace(doc, this.pos, this.pos + 1, new Slice(Fragment.from(updated), 0, node.isLeaf ? 0 : 1));\n    }\n    invert(doc) {\n        let node = doc.nodeAt(this.pos);\n        if (!node || !this.mark.isInSet(node.marks))\n            return this;\n        return new AddNodeMarkStep(this.pos, this.mark);\n    }\n    map(mapping) {\n        let pos = mapping.mapResult(this.pos, 1);\n        return pos.deletedAfter ? null : new RemoveNodeMarkStep(pos.pos, this.mark);\n    }\n    toJSON() {\n        return { stepType: \"removeNodeMark\", pos: this.pos, mark: this.mark.toJSON() };\n    }\n    /**\n    @internal\n    */\n    static fromJSON(schema, json) {\n        if (typeof json.pos != \"number\")\n            throw new RangeError(\"Invalid input for RemoveNodeMarkStep.fromJSON\");\n        return new RemoveNodeMarkStep(json.pos, schema.markFromJSON(json.mark));\n    }\n}\nStep.jsonID(\"removeNodeMark\", RemoveNodeMarkStep);\n\n/**\nReplace a part of the document with a slice of new content.\n*/\nclass ReplaceStep extends Step {\n    /**\n    The given `slice` should fit the 'gap' between `from` and\n    `to`—the depths must line up, and the surrounding nodes must be\n    able to be joined with the open sides of the slice. When\n    `structure` is true, the step will fail if the content between\n    from and to is not just a sequence of closing and then opening\n    tokens (this is to guard against rebased replace steps\n    overwriting something they weren't supposed to).\n    */\n    constructor(\n    /**\n    The start position of the replaced range.\n    */\n    from, \n    /**\n    The end position of the replaced range.\n    */\n    to, \n    /**\n    The slice to insert.\n    */\n    slice, \n    /**\n    @internal\n    */\n    structure = false) {\n        super();\n        this.from = from;\n        this.to = to;\n        this.slice = slice;\n        this.structure = structure;\n    }\n    apply(doc) {\n        if (this.structure && contentBetween(doc, this.from, this.to))\n            return StepResult.fail(\"Structure replace would overwrite content\");\n        return StepResult.fromReplace(doc, this.from, this.to, this.slice);\n    }\n    getMap() {\n        return new StepMap([this.from, this.to - this.from, this.slice.size]);\n    }\n    invert(doc) {\n        return new ReplaceStep(this.from, this.from + this.slice.size, doc.slice(this.from, this.to));\n    }\n    map(mapping) {\n        let from = mapping.mapResult(this.from, 1), to = mapping.mapResult(this.to, -1);\n        if (from.deletedAcross && to.deletedAcross)\n            return null;\n        return new ReplaceStep(from.pos, Math.max(from.pos, to.pos), this.slice, this.structure);\n    }\n    merge(other) {\n        if (!(other instanceof ReplaceStep) || other.structure || this.structure)\n            return null;\n        if (this.from + this.slice.size == other.from && !this.slice.openEnd && !other.slice.openStart) {\n            let slice = this.slice.size + other.slice.size == 0 ? Slice.empty\n                : new Slice(this.slice.content.append(other.slice.content), this.slice.openStart, other.slice.openEnd);\n            return new ReplaceStep(this.from, this.to + (other.to - other.from), slice, this.structure);\n        }\n        else if (other.to == this.from && !this.slice.openStart && !other.slice.openEnd) {\n            let slice = this.slice.size + other.slice.size == 0 ? Slice.empty\n                : new Slice(other.slice.content.append(this.slice.content), other.slice.openStart, this.slice.openEnd);\n            return new ReplaceStep(other.from, this.to, slice, this.structure);\n        }\n        else {\n            return null;\n        }\n    }\n    toJSON() {\n        let json = { stepType: \"replace\", from: this.from, to: this.to };\n        if (this.slice.size)\n            json.slice = this.slice.toJSON();\n        if (this.structure)\n            json.structure = true;\n        return json;\n    }\n    /**\n    @internal\n    */\n    static fromJSON(schema, json) {\n        if (typeof json.from != \"number\" || typeof json.to != \"number\")\n            throw new RangeError(\"Invalid input for ReplaceStep.fromJSON\");\n        return new ReplaceStep(json.from, json.to, Slice.fromJSON(schema, json.slice), !!json.structure);\n    }\n}\nStep.jsonID(\"replace\", ReplaceStep);\n/**\nReplace a part of the document with a slice of content, but\npreserve a range of the replaced content by moving it into the\nslice.\n*/\nclass ReplaceAroundStep extends Step {\n    /**\n    Create a replace-around step with the given range and gap.\n    `insert` should be the point in the slice into which the content\n    of the gap should be moved. `structure` has the same meaning as\n    it has in the [`ReplaceStep`](https://prosemirror.net/docs/ref/#transform.ReplaceStep) class.\n    */\n    constructor(\n    /**\n    The start position of the replaced range.\n    */\n    from, \n    /**\n    The end position of the replaced range.\n    */\n    to, \n    /**\n    The start of preserved range.\n    */\n    gapFrom, \n    /**\n    The end of preserved range.\n    */\n    gapTo, \n    /**\n    The slice to insert.\n    */\n    slice, \n    /**\n    The position in the slice where the preserved range should be\n    inserted.\n    */\n    insert, \n    /**\n    @internal\n    */\n    structure = false) {\n        super();\n        this.from = from;\n        this.to = to;\n        this.gapFrom = gapFrom;\n        this.gapTo = gapTo;\n        this.slice = slice;\n        this.insert = insert;\n        this.structure = structure;\n    }\n    apply(doc) {\n        if (this.structure && (contentBetween(doc, this.from, this.gapFrom) ||\n            contentBetween(doc, this.gapTo, this.to)))\n            return StepResult.fail(\"Structure gap-replace would overwrite content\");\n        let gap = doc.slice(this.gapFrom, this.gapTo);\n        if (gap.openStart || gap.openEnd)\n            return StepResult.fail(\"Gap is not a flat range\");\n        let inserted = this.slice.insertAt(this.insert, gap.content);\n        if (!inserted)\n            return StepResult.fail(\"Content does not fit in gap\");\n        return StepResult.fromReplace(doc, this.from, this.to, inserted);\n    }\n    getMap() {\n        return new StepMap([this.from, this.gapFrom - this.from, this.insert,\n            this.gapTo, this.to - this.gapTo, this.slice.size - this.insert]);\n    }\n    invert(doc) {\n        let gap = this.gapTo - this.gapFrom;\n        return new ReplaceAroundStep(this.from, this.from + this.slice.size + gap, this.from + this.insert, this.from + this.insert + gap, doc.slice(this.from, this.to).removeBetween(this.gapFrom - this.from, this.gapTo - this.from), this.gapFrom - this.from, this.structure);\n    }\n    map(mapping) {\n        let from = mapping.mapResult(this.from, 1), to = mapping.mapResult(this.to, -1);\n        let gapFrom = this.from == this.gapFrom ? from.pos : mapping.map(this.gapFrom, -1);\n        let gapTo = this.to == this.gapTo ? to.pos : mapping.map(this.gapTo, 1);\n        if ((from.deletedAcross && to.deletedAcross) || gapFrom < from.pos || gapTo > to.pos)\n            return null;\n        return new ReplaceAroundStep(from.pos, to.pos, gapFrom, gapTo, this.slice, this.insert, this.structure);\n    }\n    toJSON() {\n        let json = { stepType: \"replaceAround\", from: this.from, to: this.to,\n            gapFrom: this.gapFrom, gapTo: this.gapTo, insert: this.insert };\n        if (this.slice.size)\n            json.slice = this.slice.toJSON();\n        if (this.structure)\n            json.structure = true;\n        return json;\n    }\n    /**\n    @internal\n    */\n    static fromJSON(schema, json) {\n        if (typeof json.from != \"number\" || typeof json.to != \"number\" ||\n            typeof json.gapFrom != \"number\" || typeof json.gapTo != \"number\" || typeof json.insert != \"number\")\n            throw new RangeError(\"Invalid input for ReplaceAroundStep.fromJSON\");\n        return new ReplaceAroundStep(json.from, json.to, json.gapFrom, json.gapTo, Slice.fromJSON(schema, json.slice), json.insert, !!json.structure);\n    }\n}\nStep.jsonID(\"replaceAround\", ReplaceAroundStep);\nfunction contentBetween(doc, from, to) {\n    let $from = doc.resolve(from), dist = to - from, depth = $from.depth;\n    while (dist > 0 && depth > 0 && $from.indexAfter(depth) == $from.node(depth).childCount) {\n        depth--;\n        dist--;\n    }\n    if (dist > 0) {\n        let next = $from.node(depth).maybeChild($from.indexAfter(depth));\n        while (dist > 0) {\n            if (!next || next.isLeaf)\n                return true;\n            next = next.firstChild;\n            dist--;\n        }\n    }\n    return false;\n}\n\nfunction addMark(tr, from, to, mark) {\n    let removed = [], added = [];\n    let removing, adding;\n    tr.doc.nodesBetween(from, to, (node, pos, parent) => {\n        if (!node.isInline)\n            return;\n        let marks = node.marks;\n        if (!mark.isInSet(marks) && parent.type.allowsMarkType(mark.type)) {\n            let start = Math.max(pos, from), end = Math.min(pos + node.nodeSize, to);\n            let newSet = mark.addToSet(marks);\n            for (let i = 0; i < marks.length; i++) {\n                if (!marks[i].isInSet(newSet)) {\n                    if (removing && removing.to == start && removing.mark.eq(marks[i]))\n                        removing.to = end;\n                    else\n                        removed.push(removing = new RemoveMarkStep(start, end, marks[i]));\n                }\n            }\n            if (adding && adding.to == start)\n                adding.to = end;\n            else\n                added.push(adding = new AddMarkStep(start, end, mark));\n        }\n    });\n    removed.forEach(s => tr.step(s));\n    added.forEach(s => tr.step(s));\n}\nfunction removeMark(tr, from, to, mark) {\n    let matched = [], step = 0;\n    tr.doc.nodesBetween(from, to, (node, pos) => {\n        if (!node.isInline)\n            return;\n        step++;\n        let toRemove = null;\n        if (mark instanceof MarkType) {\n            let set = node.marks, found;\n            while (found = mark.isInSet(set)) {\n                (toRemove || (toRemove = [])).push(found);\n                set = found.removeFromSet(set);\n            }\n        }\n        else if (mark) {\n            if (mark.isInSet(node.marks))\n                toRemove = [mark];\n        }\n        else {\n            toRemove = node.marks;\n        }\n        if (toRemove && toRemove.length) {\n            let end = Math.min(pos + node.nodeSize, to);\n            for (let i = 0; i < toRemove.length; i++) {\n                let style = toRemove[i], found;\n                for (let j = 0; j < matched.length; j++) {\n                    let m = matched[j];\n                    if (m.step == step - 1 && style.eq(matched[j].style))\n                        found = m;\n                }\n                if (found) {\n                    found.to = end;\n                    found.step = step;\n                }\n                else {\n                    matched.push({ style, from: Math.max(pos, from), to: end, step });\n                }\n            }\n        }\n    });\n    matched.forEach(m => tr.step(new RemoveMarkStep(m.from, m.to, m.style)));\n}\nfunction clearIncompatible(tr, pos, parentType, match = parentType.contentMatch, clearNewlines = true) {\n    let node = tr.doc.nodeAt(pos);\n    let replSteps = [], cur = pos + 1;\n    for (let i = 0; i < node.childCount; i++) {\n        let child = node.child(i), end = cur + child.nodeSize;\n        let allowed = match.matchType(child.type);\n        if (!allowed) {\n            replSteps.push(new ReplaceStep(cur, end, Slice.empty));\n        }\n        else {\n            match = allowed;\n            for (let j = 0; j < child.marks.length; j++)\n                if (!parentType.allowsMarkType(child.marks[j].type))\n                    tr.step(new RemoveMarkStep(cur, end, child.marks[j]));\n            if (clearNewlines && child.isText && parentType.whitespace != \"pre\") {\n                let m, newline = /\\r?\\n|\\r/g, slice;\n                while (m = newline.exec(child.text)) {\n                    if (!slice)\n                        slice = new Slice(Fragment.from(parentType.schema.text(\" \", parentType.allowedMarks(child.marks))), 0, 0);\n                    replSteps.push(new ReplaceStep(cur + m.index, cur + m.index + m[0].length, slice));\n                }\n            }\n        }\n        cur = end;\n    }\n    if (!match.validEnd) {\n        let fill = match.fillBefore(Fragment.empty, true);\n        tr.replace(cur, cur, new Slice(fill, 0, 0));\n    }\n    for (let i = replSteps.length - 1; i >= 0; i--)\n        tr.step(replSteps[i]);\n}\n\nfunction canCut(node, start, end) {\n    return (start == 0 || node.canReplace(start, node.childCount)) &&\n        (end == node.childCount || node.canReplace(0, end));\n}\n/**\nTry to find a target depth to which the content in the given range\ncan be lifted. Will not go across\n[isolating](https://prosemirror.net/docs/ref/#model.NodeSpec.isolating) parent nodes.\n*/\nfunction liftTarget(range) {\n    let parent = range.parent;\n    let content = parent.content.cutByIndex(range.startIndex, range.endIndex);\n    for (let depth = range.depth, contentBefore = 0, contentAfter = 0;; --depth) {\n        let node = range.$from.node(depth);\n        let index = range.$from.index(depth) + contentBefore, endIndex = range.$to.indexAfter(depth) - contentAfter;\n        if (depth < range.depth && node.canReplace(index, endIndex, content))\n            return depth;\n        if (depth == 0 || node.type.spec.isolating || !canCut(node, index, endIndex))\n            break;\n        if (index)\n            contentBefore = 1;\n        if (endIndex < node.childCount)\n            contentAfter = 1;\n    }\n    return null;\n}\nfunction lift(tr, range, target) {\n    let { $from, $to, depth } = range;\n    let gapStart = $from.before(depth + 1), gapEnd = $to.after(depth + 1);\n    let start = gapStart, end = gapEnd;\n    let before = Fragment.empty, openStart = 0;\n    for (let d = depth, splitting = false; d > target; d--)\n        if (splitting || $from.index(d) > 0) {\n            splitting = true;\n            before = Fragment.from($from.node(d).copy(before));\n            openStart++;\n        }\n        else {\n            start--;\n        }\n    let after = Fragment.empty, openEnd = 0;\n    for (let d = depth, splitting = false; d > target; d--)\n        if (splitting || $to.after(d + 1) < $to.end(d)) {\n            splitting = true;\n            after = Fragment.from($to.node(d).copy(after));\n            openEnd++;\n        }\n        else {\n            end++;\n        }\n    tr.step(new ReplaceAroundStep(start, end, gapStart, gapEnd, new Slice(before.append(after), openStart, openEnd), before.size - openStart, true));\n}\n/**\nTry to find a valid way to wrap the content in the given range in a\nnode of the given type. May introduce extra nodes around and inside\nthe wrapper node, if necessary. Returns null if no valid wrapping\ncould be found. When `innerRange` is given, that range's content is\nused as the content to fit into the wrapping, instead of the\ncontent of `range`.\n*/\nfunction findWrapping(range, nodeType, attrs = null, innerRange = range) {\n    let around = findWrappingOutside(range, nodeType);\n    let inner = around && findWrappingInside(innerRange, nodeType);\n    if (!inner)\n        return null;\n    return around.map(withAttrs)\n        .concat({ type: nodeType, attrs }).concat(inner.map(withAttrs));\n}\nfunction withAttrs(type) { return { type, attrs: null }; }\nfunction findWrappingOutside(range, type) {\n    let { parent, startIndex, endIndex } = range;\n    let around = parent.contentMatchAt(startIndex).findWrapping(type);\n    if (!around)\n        return null;\n    let outer = around.length ? around[0] : type;\n    return parent.canReplaceWith(startIndex, endIndex, outer) ? around : null;\n}\nfunction findWrappingInside(range, type) {\n    let { parent, startIndex, endIndex } = range;\n    let inner = parent.child(startIndex);\n    let inside = type.contentMatch.findWrapping(inner.type);\n    if (!inside)\n        return null;\n    let lastType = inside.length ? inside[inside.length - 1] : type;\n    let innerMatch = lastType.contentMatch;\n    for (let i = startIndex; innerMatch && i < endIndex; i++)\n        innerMatch = innerMatch.matchType(parent.child(i).type);\n    if (!innerMatch || !innerMatch.validEnd)\n        return null;\n    return inside;\n}\nfunction wrap(tr, range, wrappers) {\n    let content = Fragment.empty;\n    for (let i = wrappers.length - 1; i >= 0; i--) {\n        if (content.size) {\n            let match = wrappers[i].type.contentMatch.matchFragment(content);\n            if (!match || !match.validEnd)\n                throw new RangeError(\"Wrapper type given to Transform.wrap does not form valid content of its parent wrapper\");\n        }\n        content = Fragment.from(wrappers[i].type.create(wrappers[i].attrs, content));\n    }\n    let start = range.start, end = range.end;\n    tr.step(new ReplaceAroundStep(start, end, start, end, new Slice(content, 0, 0), wrappers.length, true));\n}\nfunction setBlockType(tr, from, to, type, attrs) {\n    if (!type.isTextblock)\n        throw new RangeError(\"Type given to setBlockType should be a textblock\");\n    let mapFrom = tr.steps.length;\n    tr.doc.nodesBetween(from, to, (node, pos) => {\n        let attrsHere = typeof attrs == \"function\" ? attrs(node) : attrs;\n        if (node.isTextblock && !node.hasMarkup(type, attrsHere) &&\n            canChangeType(tr.doc, tr.mapping.slice(mapFrom).map(pos), type)) {\n            let convertNewlines = null;\n            if (type.schema.linebreakReplacement) {\n                let pre = type.whitespace == \"pre\", supportLinebreak = !!type.contentMatch.matchType(type.schema.linebreakReplacement);\n                if (pre && !supportLinebreak)\n                    convertNewlines = false;\n                else if (!pre && supportLinebreak)\n                    convertNewlines = true;\n            }\n            // Ensure all markup that isn't allowed in the new node type is cleared\n            if (convertNewlines === false)\n                replaceLinebreaks(tr, node, pos, mapFrom);\n            clearIncompatible(tr, tr.mapping.slice(mapFrom).map(pos, 1), type, undefined, convertNewlines === null);\n            let mapping = tr.mapping.slice(mapFrom);\n            let startM = mapping.map(pos, 1), endM = mapping.map(pos + node.nodeSize, 1);\n            tr.step(new ReplaceAroundStep(startM, endM, startM + 1, endM - 1, new Slice(Fragment.from(type.create(attrsHere, null, node.marks)), 0, 0), 1, true));\n            if (convertNewlines === true)\n                replaceNewlines(tr, node, pos, mapFrom);\n            return false;\n        }\n    });\n}\nfunction replaceNewlines(tr, node, pos, mapFrom) {\n    node.forEach((child, offset) => {\n        if (child.isText) {\n            let m, newline = /\\r?\\n|\\r/g;\n            while (m = newline.exec(child.text)) {\n                let start = tr.mapping.slice(mapFrom).map(pos + 1 + offset + m.index);\n                tr.replaceWith(start, start + 1, node.type.schema.linebreakReplacement.create());\n            }\n        }\n    });\n}\nfunction replaceLinebreaks(tr, node, pos, mapFrom) {\n    node.forEach((child, offset) => {\n        if (child.type == child.type.schema.linebreakReplacement) {\n            let start = tr.mapping.slice(mapFrom).map(pos + 1 + offset);\n            tr.replaceWith(start, start + 1, node.type.schema.text(\"\\n\"));\n        }\n    });\n}\nfunction canChangeType(doc, pos, type) {\n    let $pos = doc.resolve(pos), index = $pos.index();\n    return $pos.parent.canReplaceWith(index, index + 1, type);\n}\n/**\nChange the type, attributes, and/or marks of the node at `pos`.\nWhen `type` isn't given, the existing node type is preserved,\n*/\nfunction setNodeMarkup(tr, pos, type, attrs, marks) {\n    let node = tr.doc.nodeAt(pos);\n    if (!node)\n        throw new RangeError(\"No node at given position\");\n    if (!type)\n        type = node.type;\n    let newNode = type.create(attrs, null, marks || node.marks);\n    if (node.isLeaf)\n        return tr.replaceWith(pos, pos + node.nodeSize, newNode);\n    if (!type.validContent(node.content))\n        throw new RangeError(\"Invalid content for node type \" + type.name);\n    tr.step(new ReplaceAroundStep(pos, pos + node.nodeSize, pos + 1, pos + node.nodeSize - 1, new Slice(Fragment.from(newNode), 0, 0), 1, true));\n}\n/**\nCheck whether splitting at the given position is allowed.\n*/\nfunction canSplit(doc, pos, depth = 1, typesAfter) {\n    let $pos = doc.resolve(pos), base = $pos.depth - depth;\n    let innerType = (typesAfter && typesAfter[typesAfter.length - 1]) || $pos.parent;\n    if (base < 0 || $pos.parent.type.spec.isolating ||\n        !$pos.parent.canReplace($pos.index(), $pos.parent.childCount) ||\n        !innerType.type.validContent($pos.parent.content.cutByIndex($pos.index(), $pos.parent.childCount)))\n        return false;\n    for (let d = $pos.depth - 1, i = depth - 2; d > base; d--, i--) {\n        let node = $pos.node(d), index = $pos.index(d);\n        if (node.type.spec.isolating)\n            return false;\n        let rest = node.content.cutByIndex(index, node.childCount);\n        let overrideChild = typesAfter && typesAfter[i + 1];\n        if (overrideChild)\n            rest = rest.replaceChild(0, overrideChild.type.create(overrideChild.attrs));\n        let after = (typesAfter && typesAfter[i]) || node;\n        if (!node.canReplace(index + 1, node.childCount) || !after.type.validContent(rest))\n            return false;\n    }\n    let index = $pos.indexAfter(base);\n    let baseType = typesAfter && typesAfter[0];\n    return $pos.node(base).canReplaceWith(index, index, baseType ? baseType.type : $pos.node(base + 1).type);\n}\nfunction split(tr, pos, depth = 1, typesAfter) {\n    let $pos = tr.doc.resolve(pos), before = Fragment.empty, after = Fragment.empty;\n    for (let d = $pos.depth, e = $pos.depth - depth, i = depth - 1; d > e; d--, i--) {\n        before = Fragment.from($pos.node(d).copy(before));\n        let typeAfter = typesAfter && typesAfter[i];\n        after = Fragment.from(typeAfter ? typeAfter.type.create(typeAfter.attrs, after) : $pos.node(d).copy(after));\n    }\n    tr.step(new ReplaceStep(pos, pos, new Slice(before.append(after), depth, depth), true));\n}\n/**\nTest whether the blocks before and after a given position can be\njoined.\n*/\nfunction canJoin(doc, pos) {\n    let $pos = doc.resolve(pos), index = $pos.index();\n    return joinable($pos.nodeBefore, $pos.nodeAfter) &&\n        $pos.parent.canReplace(index, index + 1);\n}\nfunction canAppendWithSubstitutedLinebreaks(a, b) {\n    if (!b.content.size)\n        a.type.compatibleContent(b.type);\n    let match = a.contentMatchAt(a.childCount);\n    let { linebreakReplacement } = a.type.schema;\n    for (let i = 0; i < b.childCount; i++) {\n        let child = b.child(i);\n        let type = child.type == linebreakReplacement ? a.type.schema.nodes.text : child.type;\n        match = match.matchType(type);\n        if (!match)\n            return false;\n        if (!a.type.allowsMarks(child.marks))\n            return false;\n    }\n    return match.validEnd;\n}\nfunction joinable(a, b) {\n    return !!(a && b && !a.isLeaf && canAppendWithSubstitutedLinebreaks(a, b));\n}\n/**\nFind an ancestor of the given position that can be joined to the\nblock before (or after if `dir` is positive). Returns the joinable\npoint, if any.\n*/\nfunction joinPoint(doc, pos, dir = -1) {\n    let $pos = doc.resolve(pos);\n    for (let d = $pos.depth;; d--) {\n        let before, after, index = $pos.index(d);\n        if (d == $pos.depth) {\n            before = $pos.nodeBefore;\n            after = $pos.nodeAfter;\n        }\n        else if (dir > 0) {\n            before = $pos.node(d + 1);\n            index++;\n            after = $pos.node(d).maybeChild(index);\n        }\n        else {\n            before = $pos.node(d).maybeChild(index - 1);\n            after = $pos.node(d + 1);\n        }\n        if (before && !before.isTextblock && joinable(before, after) &&\n            $pos.node(d).canReplace(index, index + 1))\n            return pos;\n        if (d == 0)\n            break;\n        pos = dir < 0 ? $pos.before(d) : $pos.after(d);\n    }\n}\nfunction join(tr, pos, depth) {\n    let convertNewlines = null;\n    let { linebreakReplacement } = tr.doc.type.schema;\n    let $before = tr.doc.resolve(pos - depth), beforeType = $before.node().type;\n    if (linebreakReplacement && beforeType.inlineContent) {\n        let pre = beforeType.whitespace == \"pre\";\n        let supportLinebreak = !!beforeType.contentMatch.matchType(linebreakReplacement);\n        if (pre && !supportLinebreak)\n            convertNewlines = false;\n        else if (!pre && supportLinebreak)\n            convertNewlines = true;\n    }\n    let mapFrom = tr.steps.length;\n    if (convertNewlines === false) {\n        let $after = tr.doc.resolve(pos + depth);\n        replaceLinebreaks(tr, $after.node(), $after.before(), mapFrom);\n    }\n    if (beforeType.inlineContent)\n        clearIncompatible(tr, pos + depth - 1, beforeType, $before.node().contentMatchAt($before.index()), convertNewlines == null);\n    let mapping = tr.mapping.slice(mapFrom), start = mapping.map(pos - depth);\n    tr.step(new ReplaceStep(start, mapping.map(pos + depth, -1), Slice.empty, true));\n    if (convertNewlines === true) {\n        let $full = tr.doc.resolve(start);\n        replaceNewlines(tr, $full.node(), $full.before(), tr.steps.length);\n    }\n    return tr;\n}\n/**\nTry to find a point where a node of the given type can be inserted\nnear `pos`, by searching up the node hierarchy when `pos` itself\nisn't a valid place but is at the start or end of a node. Return\nnull if no position was found.\n*/\nfunction insertPoint(doc, pos, nodeType) {\n    let $pos = doc.resolve(pos);\n    if ($pos.parent.canReplaceWith($pos.index(), $pos.index(), nodeType))\n        return pos;\n    if ($pos.parentOffset == 0)\n        for (let d = $pos.depth - 1; d >= 0; d--) {\n            let index = $pos.index(d);\n            if ($pos.node(d).canReplaceWith(index, index, nodeType))\n                return $pos.before(d + 1);\n            if (index > 0)\n                return null;\n        }\n    if ($pos.parentOffset == $pos.parent.content.size)\n        for (let d = $pos.depth - 1; d >= 0; d--) {\n            let index = $pos.indexAfter(d);\n            if ($pos.node(d).canReplaceWith(index, index, nodeType))\n                return $pos.after(d + 1);\n            if (index < $pos.node(d).childCount)\n                return null;\n        }\n    return null;\n}\n/**\nFinds a position at or around the given position where the given\nslice can be inserted. Will look at parent nodes' nearest boundary\nand try there, even if the original position wasn't directly at the\nstart or end of that node. Returns null when no position was found.\n*/\nfunction dropPoint(doc, pos, slice) {\n    let $pos = doc.resolve(pos);\n    if (!slice.content.size)\n        return pos;\n    let content = slice.content;\n    for (let i = 0; i < slice.openStart; i++)\n        content = content.firstChild.content;\n    for (let pass = 1; pass <= (slice.openStart == 0 && slice.size ? 2 : 1); pass++) {\n        for (let d = $pos.depth; d >= 0; d--) {\n            let bias = d == $pos.depth ? 0 : $pos.pos <= ($pos.start(d + 1) + $pos.end(d + 1)) / 2 ? -1 : 1;\n            let insertPos = $pos.index(d) + (bias > 0 ? 1 : 0);\n            let parent = $pos.node(d), fits = false;\n            if (pass == 1) {\n                fits = parent.canReplace(insertPos, insertPos, content);\n            }\n            else {\n                let wrapping = parent.contentMatchAt(insertPos).findWrapping(content.firstChild.type);\n                fits = wrapping && parent.canReplaceWith(insertPos, insertPos, wrapping[0]);\n            }\n            if (fits)\n                return bias == 0 ? $pos.pos : bias < 0 ? $pos.before(d + 1) : $pos.after(d + 1);\n        }\n    }\n    return null;\n}\n\n/**\n‘Fit’ a slice into a given position in the document, producing a\n[step](https://prosemirror.net/docs/ref/#transform.Step) that inserts it. Will return null if\nthere's no meaningful way to insert the slice here, or inserting it\nwould be a no-op (an empty slice over an empty range).\n*/\nfunction replaceStep(doc, from, to = from, slice = Slice.empty) {\n    if (from == to && !slice.size)\n        return null;\n    let $from = doc.resolve(from), $to = doc.resolve(to);\n    // Optimization -- avoid work if it's obvious that it's not needed.\n    if (fitsTrivially($from, $to, slice))\n        return new ReplaceStep(from, to, slice);\n    return new Fitter($from, $to, slice).fit();\n}\nfunction fitsTrivially($from, $to, slice) {\n    return !slice.openStart && !slice.openEnd && $from.start() == $to.start() &&\n        $from.parent.canReplace($from.index(), $to.index(), slice.content);\n}\n// Algorithm for 'placing' the elements of a slice into a gap:\n//\n// We consider the content of each node that is open to the left to be\n// independently placeable. I.e. in <p(\"foo\"), p(\"bar\")>, when the\n// paragraph on the left is open, \"foo\" can be placed (somewhere on\n// the left side of the replacement gap) independently from p(\"bar\").\n//\n// This class tracks the state of the placement progress in the\n// following properties:\n//\n//  - `frontier` holds a stack of `{type, match}` objects that\n//    represent the open side of the replacement. It starts at\n//    `$from`, then moves forward as content is placed, and is finally\n//    reconciled with `$to`.\n//\n//  - `unplaced` is a slice that represents the content that hasn't\n//    been placed yet.\n//\n//  - `placed` is a fragment of placed content. Its open-start value\n//    is implicit in `$from`, and its open-end value in `frontier`.\nclass Fitter {\n    constructor($from, $to, unplaced) {\n        this.$from = $from;\n        this.$to = $to;\n        this.unplaced = unplaced;\n        this.frontier = [];\n        this.placed = Fragment.empty;\n        for (let i = 0; i <= $from.depth; i++) {\n            let node = $from.node(i);\n            this.frontier.push({\n                type: node.type,\n                match: node.contentMatchAt($from.indexAfter(i))\n            });\n        }\n        for (let i = $from.depth; i > 0; i--)\n            this.placed = Fragment.from($from.node(i).copy(this.placed));\n    }\n    get depth() { return this.frontier.length - 1; }\n    fit() {\n        // As long as there's unplaced content, try to place some of it.\n        // If that fails, either increase the open score of the unplaced\n        // slice, or drop nodes from it, and then try again.\n        while (this.unplaced.size) {\n            let fit = this.findFittable();\n            if (fit)\n                this.placeNodes(fit);\n            else\n                this.openMore() || this.dropNode();\n        }\n        // When there's inline content directly after the frontier _and_\n        // directly after `this.$to`, we must generate a `ReplaceAround`\n        // step that pulls that content into the node after the frontier.\n        // That means the fitting must be done to the end of the textblock\n        // node after `this.$to`, not `this.$to` itself.\n        let moveInline = this.mustMoveInline(), placedSize = this.placed.size - this.depth - this.$from.depth;\n        let $from = this.$from, $to = this.close(moveInline < 0 ? this.$to : $from.doc.resolve(moveInline));\n        if (!$to)\n            return null;\n        // If closing to `$to` succeeded, create a step\n        let content = this.placed, openStart = $from.depth, openEnd = $to.depth;\n        while (openStart && openEnd && content.childCount == 1) { // Normalize by dropping open parent nodes\n            content = content.firstChild.content;\n            openStart--;\n            openEnd--;\n        }\n        let slice = new Slice(content, openStart, openEnd);\n        if (moveInline > -1)\n            return new ReplaceAroundStep($from.pos, moveInline, this.$to.pos, this.$to.end(), slice, placedSize);\n        if (slice.size || $from.pos != this.$to.pos) // Don't generate no-op steps\n            return new ReplaceStep($from.pos, $to.pos, slice);\n        return null;\n    }\n    // Find a position on the start spine of `this.unplaced` that has\n    // content that can be moved somewhere on the frontier. Returns two\n    // depths, one for the slice and one for the frontier.\n    findFittable() {\n        let startDepth = this.unplaced.openStart;\n        for (let cur = this.unplaced.content, d = 0, openEnd = this.unplaced.openEnd; d < startDepth; d++) {\n            let node = cur.firstChild;\n            if (cur.childCount > 1)\n                openEnd = 0;\n            if (node.type.spec.isolating && openEnd <= d) {\n                startDepth = d;\n                break;\n            }\n            cur = node.content;\n        }\n        // Only try wrapping nodes (pass 2) after finding a place without\n        // wrapping failed.\n        for (let pass = 1; pass <= 2; pass++) {\n            for (let sliceDepth = pass == 1 ? startDepth : this.unplaced.openStart; sliceDepth >= 0; sliceDepth--) {\n                let fragment, parent = null;\n                if (sliceDepth) {\n                    parent = contentAt(this.unplaced.content, sliceDepth - 1).firstChild;\n                    fragment = parent.content;\n                }\n                else {\n                    fragment = this.unplaced.content;\n                }\n                let first = fragment.firstChild;\n                for (let frontierDepth = this.depth; frontierDepth >= 0; frontierDepth--) {\n                    let { type, match } = this.frontier[frontierDepth], wrap, inject = null;\n                    // In pass 1, if the next node matches, or there is no next\n                    // node but the parents look compatible, we've found a\n                    // place.\n                    if (pass == 1 && (first ? match.matchType(first.type) || (inject = match.fillBefore(Fragment.from(first), false))\n                        : parent && type.compatibleContent(parent.type)))\n                        return { sliceDepth, frontierDepth, parent, inject };\n                    // In pass 2, look for a set of wrapping nodes that make\n                    // `first` fit here.\n                    else if (pass == 2 && first && (wrap = match.findWrapping(first.type)))\n                        return { sliceDepth, frontierDepth, parent, wrap };\n                    // Don't continue looking further up if the parent node\n                    // would fit here.\n                    if (parent && match.matchType(parent.type))\n                        break;\n                }\n            }\n        }\n    }\n    openMore() {\n        let { content, openStart, openEnd } = this.unplaced;\n        let inner = contentAt(content, openStart);\n        if (!inner.childCount || inner.firstChild.isLeaf)\n            return false;\n        this.unplaced = new Slice(content, openStart + 1, Math.max(openEnd, inner.size + openStart >= content.size - openEnd ? openStart + 1 : 0));\n        return true;\n    }\n    dropNode() {\n        let { content, openStart, openEnd } = this.unplaced;\n        let inner = contentAt(content, openStart);\n        if (inner.childCount <= 1 && openStart > 0) {\n            let openAtEnd = content.size - openStart <= openStart + inner.size;\n            this.unplaced = new Slice(dropFromFragment(content, openStart - 1, 1), openStart - 1, openAtEnd ? openStart - 1 : openEnd);\n        }\n        else {\n            this.unplaced = new Slice(dropFromFragment(content, openStart, 1), openStart, openEnd);\n        }\n    }\n    // Move content from the unplaced slice at `sliceDepth` to the\n    // frontier node at `frontierDepth`. Close that frontier node when\n    // applicable.\n    placeNodes({ sliceDepth, frontierDepth, parent, inject, wrap }) {\n        while (this.depth > frontierDepth)\n            this.closeFrontierNode();\n        if (wrap)\n            for (let i = 0; i < wrap.length; i++)\n                this.openFrontierNode(wrap[i]);\n        let slice = this.unplaced, fragment = parent ? parent.content : slice.content;\n        let openStart = slice.openStart - sliceDepth;\n        let taken = 0, add = [];\n        let { match, type } = this.frontier[frontierDepth];\n        if (inject) {\n            for (let i = 0; i < inject.childCount; i++)\n                add.push(inject.child(i));\n            match = match.matchFragment(inject);\n        }\n        // Computes the amount of (end) open nodes at the end of the\n        // fragment. When 0, the parent is open, but no more. When\n        // negative, nothing is open.\n        let openEndCount = (fragment.size + sliceDepth) - (slice.content.size - slice.openEnd);\n        // Scan over the fragment, fitting as many child nodes as\n        // possible.\n        while (taken < fragment.childCount) {\n            let next = fragment.child(taken), matches = match.matchType(next.type);\n            if (!matches)\n                break;\n            taken++;\n            if (taken > 1 || openStart == 0 || next.content.size) { // Drop empty open nodes\n                match = matches;\n                add.push(closeNodeStart(next.mark(type.allowedMarks(next.marks)), taken == 1 ? openStart : 0, taken == fragment.childCount ? openEndCount : -1));\n            }\n        }\n        let toEnd = taken == fragment.childCount;\n        if (!toEnd)\n            openEndCount = -1;\n        this.placed = addToFragment(this.placed, frontierDepth, Fragment.from(add));\n        this.frontier[frontierDepth].match = match;\n        // If the parent types match, and the entire node was moved, and\n        // it's not open, close this frontier node right away.\n        if (toEnd && openEndCount < 0 && parent && parent.type == this.frontier[this.depth].type && this.frontier.length > 1)\n            this.closeFrontierNode();\n        // Add new frontier nodes for any open nodes at the end.\n        for (let i = 0, cur = fragment; i < openEndCount; i++) {\n            let node = cur.lastChild;\n            this.frontier.push({ type: node.type, match: node.contentMatchAt(node.childCount) });\n            cur = node.content;\n        }\n        // Update `this.unplaced`. Drop the entire node from which we\n        // placed it we got to its end, otherwise just drop the placed\n        // nodes.\n        this.unplaced = !toEnd ? new Slice(dropFromFragment(slice.content, sliceDepth, taken), slice.openStart, slice.openEnd)\n            : sliceDepth == 0 ? Slice.empty\n                : new Slice(dropFromFragment(slice.content, sliceDepth - 1, 1), sliceDepth - 1, openEndCount < 0 ? slice.openEnd : sliceDepth - 1);\n    }\n    mustMoveInline() {\n        if (!this.$to.parent.isTextblock)\n            return -1;\n        let top = this.frontier[this.depth], level;\n        if (!top.type.isTextblock || !contentAfterFits(this.$to, this.$to.depth, top.type, top.match, false) ||\n            (this.$to.depth == this.depth && (level = this.findCloseLevel(this.$to)) && level.depth == this.depth))\n            return -1;\n        let { depth } = this.$to, after = this.$to.after(depth);\n        while (depth > 1 && after == this.$to.end(--depth))\n            ++after;\n        return after;\n    }\n    findCloseLevel($to) {\n        scan: for (let i = Math.min(this.depth, $to.depth); i >= 0; i--) {\n            let { match, type } = this.frontier[i];\n            let dropInner = i < $to.depth && $to.end(i + 1) == $to.pos + ($to.depth - (i + 1));\n            let fit = contentAfterFits($to, i, type, match, dropInner);\n            if (!fit)\n                continue;\n            for (let d = i - 1; d >= 0; d--) {\n                let { match, type } = this.frontier[d];\n                let matches = contentAfterFits($to, d, type, match, true);\n                if (!matches || matches.childCount)\n                    continue scan;\n            }\n            return { depth: i, fit, move: dropInner ? $to.doc.resolve($to.after(i + 1)) : $to };\n        }\n    }\n    close($to) {\n        let close = this.findCloseLevel($to);\n        if (!close)\n            return null;\n        while (this.depth > close.depth)\n            this.closeFrontierNode();\n        if (close.fit.childCount)\n            this.placed = addToFragment(this.placed, close.depth, close.fit);\n        $to = close.move;\n        for (let d = close.depth + 1; d <= $to.depth; d++) {\n            let node = $to.node(d), add = node.type.contentMatch.fillBefore(node.content, true, $to.index(d));\n            this.openFrontierNode(node.type, node.attrs, add);\n        }\n        return $to;\n    }\n    openFrontierNode(type, attrs = null, content) {\n        let top = this.frontier[this.depth];\n        top.match = top.match.matchType(type);\n        this.placed = addToFragment(this.placed, this.depth, Fragment.from(type.create(attrs, content)));\n        this.frontier.push({ type, match: type.contentMatch });\n    }\n    closeFrontierNode() {\n        let open = this.frontier.pop();\n        let add = open.match.fillBefore(Fragment.empty, true);\n        if (add.childCount)\n            this.placed = addToFragment(this.placed, this.frontier.length, add);\n    }\n}\nfunction dropFromFragment(fragment, depth, count) {\n    if (depth == 0)\n        return fragment.cutByIndex(count, fragment.childCount);\n    return fragment.replaceChild(0, fragment.firstChild.copy(dropFromFragment(fragment.firstChild.content, depth - 1, count)));\n}\nfunction addToFragment(fragment, depth, content) {\n    if (depth == 0)\n        return fragment.append(content);\n    return fragment.replaceChild(fragment.childCount - 1, fragment.lastChild.copy(addToFragment(fragment.lastChild.content, depth - 1, content)));\n}\nfunction contentAt(fragment, depth) {\n    for (let i = 0; i < depth; i++)\n        fragment = fragment.firstChild.content;\n    return fragment;\n}\nfunction closeNodeStart(node, openStart, openEnd) {\n    if (openStart <= 0)\n        return node;\n    let frag = node.content;\n    if (openStart > 1)\n        frag = frag.replaceChild(0, closeNodeStart(frag.firstChild, openStart - 1, frag.childCount == 1 ? openEnd - 1 : 0));\n    if (openStart > 0) {\n        frag = node.type.contentMatch.fillBefore(frag).append(frag);\n        if (openEnd <= 0)\n            frag = frag.append(node.type.contentMatch.matchFragment(frag).fillBefore(Fragment.empty, true));\n    }\n    return node.copy(frag);\n}\nfunction contentAfterFits($to, depth, type, match, open) {\n    let node = $to.node(depth), index = open ? $to.indexAfter(depth) : $to.index(depth);\n    if (index == node.childCount && !type.compatibleContent(node.type))\n        return null;\n    let fit = match.fillBefore(node.content, true, index);\n    return fit && !invalidMarks(type, node.content, index) ? fit : null;\n}\nfunction invalidMarks(type, fragment, start) {\n    for (let i = start; i < fragment.childCount; i++)\n        if (!type.allowsMarks(fragment.child(i).marks))\n            return true;\n    return false;\n}\nfunction definesContent(type) {\n    return type.spec.defining || type.spec.definingForContent;\n}\nfunction replaceRange(tr, from, to, slice) {\n    if (!slice.size)\n        return tr.deleteRange(from, to);\n    let $from = tr.doc.resolve(from), $to = tr.doc.resolve(to);\n    if (fitsTrivially($from, $to, slice))\n        return tr.step(new ReplaceStep(from, to, slice));\n    let targetDepths = coveredDepths($from, $to);\n    // Can't replace the whole document, so remove 0 if it's present\n    if (targetDepths[targetDepths.length - 1] == 0)\n        targetDepths.pop();\n    // Negative numbers represent not expansion over the whole node at\n    // that depth, but replacing from $from.before(-D) to $to.pos.\n    let preferredTarget = -($from.depth + 1);\n    targetDepths.unshift(preferredTarget);\n    // This loop picks a preferred target depth, if one of the covering\n    // depths is not outside of a defining node, and adds negative\n    // depths for any depth that has $from at its start and does not\n    // cross a defining node.\n    for (let d = $from.depth, pos = $from.pos - 1; d > 0; d--, pos--) {\n        let spec = $from.node(d).type.spec;\n        if (spec.defining || spec.definingAsContext || spec.isolating)\n            break;\n        if (targetDepths.indexOf(d) > -1)\n            preferredTarget = d;\n        else if ($from.before(d) == pos)\n            targetDepths.splice(1, 0, -d);\n    }\n    // Try to fit each possible depth of the slice into each possible\n    // target depth, starting with the preferred depths.\n    let preferredTargetIndex = targetDepths.indexOf(preferredTarget);\n    let leftNodes = [], preferredDepth = slice.openStart;\n    for (let content = slice.content, i = 0;; i++) {\n        let node = content.firstChild;\n        leftNodes.push(node);\n        if (i == slice.openStart)\n            break;\n        content = node.content;\n    }\n    // Back up preferredDepth to cover defining textblocks directly\n    // above it, possibly skipping a non-defining textblock.\n    for (let d = preferredDepth - 1; d >= 0; d--) {\n        let leftNode = leftNodes[d], def = definesContent(leftNode.type);\n        if (def && !leftNode.sameMarkup($from.node(Math.abs(preferredTarget) - 1)))\n            preferredDepth = d;\n        else if (def || !leftNode.type.isTextblock)\n            break;\n    }\n    for (let j = slice.openStart; j >= 0; j--) {\n        let openDepth = (j + preferredDepth + 1) % (slice.openStart + 1);\n        let insert = leftNodes[openDepth];\n        if (!insert)\n            continue;\n        for (let i = 0; i < targetDepths.length; i++) {\n            // Loop over possible expansion levels, starting with the\n            // preferred one\n            let targetDepth = targetDepths[(i + preferredTargetIndex) % targetDepths.length], expand = true;\n            if (targetDepth < 0) {\n                expand = false;\n                targetDepth = -targetDepth;\n            }\n            let parent = $from.node(targetDepth - 1), index = $from.index(targetDepth - 1);\n            if (parent.canReplaceWith(index, index, insert.type, insert.marks))\n                return tr.replace($from.before(targetDepth), expand ? $to.after(targetDepth) : to, new Slice(closeFragment(slice.content, 0, slice.openStart, openDepth), openDepth, slice.openEnd));\n        }\n    }\n    let startSteps = tr.steps.length;\n    for (let i = targetDepths.length - 1; i >= 0; i--) {\n        tr.replace(from, to, slice);\n        if (tr.steps.length > startSteps)\n            break;\n        let depth = targetDepths[i];\n        if (depth < 0)\n            continue;\n        from = $from.before(depth);\n        to = $to.after(depth);\n    }\n}\nfunction closeFragment(fragment, depth, oldOpen, newOpen, parent) {\n    if (depth < oldOpen) {\n        let first = fragment.firstChild;\n        fragment = fragment.replaceChild(0, first.copy(closeFragment(first.content, depth + 1, oldOpen, newOpen, first)));\n    }\n    if (depth > newOpen) {\n        let match = parent.contentMatchAt(0);\n        let start = match.fillBefore(fragment).append(fragment);\n        fragment = start.append(match.matchFragment(start).fillBefore(Fragment.empty, true));\n    }\n    return fragment;\n}\nfunction replaceRangeWith(tr, from, to, node) {\n    if (!node.isInline && from == to && tr.doc.resolve(from).parent.content.size) {\n        let point = insertPoint(tr.doc, from, node.type);\n        if (point != null)\n            from = to = point;\n    }\n    tr.replaceRange(from, to, new Slice(Fragment.from(node), 0, 0));\n}\nfunction deleteRange(tr, from, to) {\n    let $from = tr.doc.resolve(from), $to = tr.doc.resolve(to);\n    let covered = coveredDepths($from, $to);\n    for (let i = 0; i < covered.length; i++) {\n        let depth = covered[i], last = i == covered.length - 1;\n        if ((last && depth == 0) || $from.node(depth).type.contentMatch.validEnd)\n            return tr.delete($from.start(depth), $to.end(depth));\n        if (depth > 0 && (last || $from.node(depth - 1).canReplace($from.index(depth - 1), $to.indexAfter(depth - 1))))\n            return tr.delete($from.before(depth), $to.after(depth));\n    }\n    for (let d = 1; d <= $from.depth && d <= $to.depth; d++) {\n        if (from - $from.start(d) == $from.depth - d && to > $from.end(d) && $to.end(d) - to != $to.depth - d &&\n            $from.start(d - 1) == $to.start(d - 1) && $from.node(d - 1).canReplace($from.index(d - 1), $to.index(d - 1)))\n            return tr.delete($from.before(d), to);\n    }\n    tr.delete(from, to);\n}\n// Returns an array of all depths for which $from - $to spans the\n// whole content of the nodes at that depth.\nfunction coveredDepths($from, $to) {\n    let result = [], minDepth = Math.min($from.depth, $to.depth);\n    for (let d = minDepth; d >= 0; d--) {\n        let start = $from.start(d);\n        if (start < $from.pos - ($from.depth - d) ||\n            $to.end(d) > $to.pos + ($to.depth - d) ||\n            $from.node(d).type.spec.isolating ||\n            $to.node(d).type.spec.isolating)\n            break;\n        if (start == $to.start(d) ||\n            (d == $from.depth && d == $to.depth && $from.parent.inlineContent && $to.parent.inlineContent &&\n                d && $to.start(d - 1) == start - 1))\n            result.push(d);\n    }\n    return result;\n}\n\n/**\nUpdate an attribute in a specific node.\n*/\nclass AttrStep extends Step {\n    /**\n    Construct an attribute step.\n    */\n    constructor(\n    /**\n    The position of the target node.\n    */\n    pos, \n    /**\n    The attribute to set.\n    */\n    attr, \n    // The attribute's new value.\n    value) {\n        super();\n        this.pos = pos;\n        this.attr = attr;\n        this.value = value;\n    }\n    apply(doc) {\n        let node = doc.nodeAt(this.pos);\n        if (!node)\n            return StepResult.fail(\"No node at attribute step's position\");\n        let attrs = Object.create(null);\n        for (let name in node.attrs)\n            attrs[name] = node.attrs[name];\n        attrs[this.attr] = this.value;\n        let updated = node.type.create(attrs, null, node.marks);\n        return StepResult.fromReplace(doc, this.pos, this.pos + 1, new Slice(Fragment.from(updated), 0, node.isLeaf ? 0 : 1));\n    }\n    getMap() {\n        return StepMap.empty;\n    }\n    invert(doc) {\n        return new AttrStep(this.pos, this.attr, doc.nodeAt(this.pos).attrs[this.attr]);\n    }\n    map(mapping) {\n        let pos = mapping.mapResult(this.pos, 1);\n        return pos.deletedAfter ? null : new AttrStep(pos.pos, this.attr, this.value);\n    }\n    toJSON() {\n        return { stepType: \"attr\", pos: this.pos, attr: this.attr, value: this.value };\n    }\n    static fromJSON(schema, json) {\n        if (typeof json.pos != \"number\" || typeof json.attr != \"string\")\n            throw new RangeError(\"Invalid input for AttrStep.fromJSON\");\n        return new AttrStep(json.pos, json.attr, json.value);\n    }\n}\nStep.jsonID(\"attr\", AttrStep);\n/**\nUpdate an attribute in the doc node.\n*/\nclass DocAttrStep extends Step {\n    /**\n    Construct an attribute step.\n    */\n    constructor(\n    /**\n    The attribute to set.\n    */\n    attr, \n    // The attribute's new value.\n    value) {\n        super();\n        this.attr = attr;\n        this.value = value;\n    }\n    apply(doc) {\n        let attrs = Object.create(null);\n        for (let name in doc.attrs)\n            attrs[name] = doc.attrs[name];\n        attrs[this.attr] = this.value;\n        let updated = doc.type.create(attrs, doc.content, doc.marks);\n        return StepResult.ok(updated);\n    }\n    getMap() {\n        return StepMap.empty;\n    }\n    invert(doc) {\n        return new DocAttrStep(this.attr, doc.attrs[this.attr]);\n    }\n    map(mapping) {\n        return this;\n    }\n    toJSON() {\n        return { stepType: \"docAttr\", attr: this.attr, value: this.value };\n    }\n    static fromJSON(schema, json) {\n        if (typeof json.attr != \"string\")\n            throw new RangeError(\"Invalid input for DocAttrStep.fromJSON\");\n        return new DocAttrStep(json.attr, json.value);\n    }\n}\nStep.jsonID(\"docAttr\", DocAttrStep);\n\n/**\n@internal\n*/\nlet TransformError = class extends Error {\n};\nTransformError = function TransformError(message) {\n    let err = Error.call(this, message);\n    err.__proto__ = TransformError.prototype;\n    return err;\n};\nTransformError.prototype = Object.create(Error.prototype);\nTransformError.prototype.constructor = TransformError;\nTransformError.prototype.name = \"TransformError\";\n/**\nAbstraction to build up and track an array of\n[steps](https://prosemirror.net/docs/ref/#transform.Step) representing a document transformation.\n\nMost transforming methods return the `Transform` object itself, so\nthat they can be chained.\n*/\nclass Transform {\n    /**\n    Create a transform that starts with the given document.\n    */\n    constructor(\n    /**\n    The current document (the result of applying the steps in the\n    transform).\n    */\n    doc) {\n        this.doc = doc;\n        /**\n        The steps in this transform.\n        */\n        this.steps = [];\n        /**\n        The documents before each of the steps.\n        */\n        this.docs = [];\n        /**\n        A mapping with the maps for each of the steps in this transform.\n        */\n        this.mapping = new Mapping;\n    }\n    /**\n    The starting document.\n    */\n    get before() { return this.docs.length ? this.docs[0] : this.doc; }\n    /**\n    Apply a new step in this transform, saving the result. Throws an\n    error when the step fails.\n    */\n    step(step) {\n        let result = this.maybeStep(step);\n        if (result.failed)\n            throw new TransformError(result.failed);\n        return this;\n    }\n    /**\n    Try to apply a step in this transformation, ignoring it if it\n    fails. Returns the step result.\n    */\n    maybeStep(step) {\n        let result = step.apply(this.doc);\n        if (!result.failed)\n            this.addStep(step, result.doc);\n        return result;\n    }\n    /**\n    True when the document has been changed (when there are any\n    steps).\n    */\n    get docChanged() {\n        return this.steps.length > 0;\n    }\n    /**\n    Return a single range, in post-transform document positions,\n    that covers all content changed by this transform. Returns null\n    if no replacements are made. Note that this will ignore changes\n    that add/remove marks without replacing the underlying content.\n    */\n    changedRange() {\n        let from = 1e9, to = -1e9;\n        for (let i = 0; i < this.mapping.maps.length; i++) {\n            let map = this.mapping.maps[i];\n            if (i) {\n                from = map.map(from, 1);\n                to = map.map(to, -1);\n            }\n            map.forEach((_f, _t, fromB, toB) => {\n                from = Math.min(from, fromB);\n                to = Math.max(to, toB);\n            });\n        }\n        return from == 1e9 ? null : { from, to };\n    }\n    /**\n    @internal\n    */\n    addStep(step, doc) {\n        this.docs.push(this.doc);\n        this.steps.push(step);\n        this.mapping.appendMap(step.getMap());\n        this.doc = doc;\n    }\n    /**\n    Replace the part of the document between `from` and `to` with the\n    given `slice`.\n    */\n    replace(from, to = from, slice = Slice.empty) {\n        let step = replaceStep(this.doc, from, to, slice);\n        if (step)\n            this.step(step);\n        return this;\n    }\n    /**\n    Replace the given range with the given content, which may be a\n    fragment, node, or array of nodes.\n    */\n    replaceWith(from, to, content) {\n        return this.replace(from, to, new Slice(Fragment.from(content), 0, 0));\n    }\n    /**\n    Delete the content between the given positions.\n    */\n    delete(from, to) {\n        return this.replace(from, to, Slice.empty);\n    }\n    /**\n    Insert the given content at the given position.\n    */\n    insert(pos, content) {\n        return this.replaceWith(pos, pos, content);\n    }\n    /**\n    Replace a range of the document with a given slice, using\n    `from`, `to`, and the slice's\n    [`openStart`](https://prosemirror.net/docs/ref/#model.Slice.openStart) property as hints, rather\n    than fixed start and end points. This method may grow the\n    replaced area or close open nodes in the slice in order to get a\n    fit that is more in line with WYSIWYG expectations, by dropping\n    fully covered parent nodes of the replaced region when they are\n    marked [non-defining as\n    context](https://prosemirror.net/docs/ref/#model.NodeSpec.definingAsContext), or including an\n    open parent node from the slice that _is_ marked as [defining\n    its content](https://prosemirror.net/docs/ref/#model.NodeSpec.definingForContent).\n    \n    This is the method, for example, to handle paste. The similar\n    [`replace`](https://prosemirror.net/docs/ref/#transform.Transform.replace) method is a more\n    primitive tool which will _not_ move the start and end of its given\n    range, and is useful in situations where you need more precise\n    control over what happens.\n    */\n    replaceRange(from, to, slice) {\n        replaceRange(this, from, to, slice);\n        return this;\n    }\n    /**\n    Replace the given range with a node, but use `from` and `to` as\n    hints, rather than precise positions. When from and to are the same\n    and are at the start or end of a parent node in which the given\n    node doesn't fit, this method may _move_ them out towards a parent\n    that does allow the given node to be placed. When the given range\n    completely covers a parent node, this method may completely replace\n    that parent node.\n    */\n    replaceRangeWith(from, to, node) {\n        replaceRangeWith(this, from, to, node);\n        return this;\n    }\n    /**\n    Delete the given range, expanding it to cover fully covered\n    parent nodes until a valid replace is found.\n    */\n    deleteRange(from, to) {\n        deleteRange(this, from, to);\n        return this;\n    }\n    /**\n    Split the content in the given range off from its parent, if there\n    is sibling content before or after it, and move it up the tree to\n    the depth specified by `target`. You'll probably want to use\n    [`liftTarget`](https://prosemirror.net/docs/ref/#transform.liftTarget) to compute `target`, to make\n    sure the lift is valid.\n    */\n    lift(range, target) {\n        lift(this, range, target);\n        return this;\n    }\n    /**\n    Join the blocks around the given position. If depth is 2, their\n    last and first siblings are also joined, and so on.\n    */\n    join(pos, depth = 1) {\n        join(this, pos, depth);\n        return this;\n    }\n    /**\n    Wrap the given [range](https://prosemirror.net/docs/ref/#model.NodeRange) in the given set of wrappers.\n    The wrappers are assumed to be valid in this position, and should\n    probably be computed with [`findWrapping`](https://prosemirror.net/docs/ref/#transform.findWrapping).\n    */\n    wrap(range, wrappers) {\n        wrap(this, range, wrappers);\n        return this;\n    }\n    /**\n    Set the type of all textblocks (partly) between `from` and `to` to\n    the given node type with the given attributes.\n    */\n    setBlockType(from, to = from, type, attrs = null) {\n        setBlockType(this, from, to, type, attrs);\n        return this;\n    }\n    /**\n    Change the type, attributes, and/or marks of the node at `pos`.\n    When `type` isn't given, the existing node type is preserved,\n    */\n    setNodeMarkup(pos, type, attrs = null, marks) {\n        setNodeMarkup(this, pos, type, attrs, marks);\n        return this;\n    }\n    /**\n    Set a single attribute on a given node to a new value.\n    The `pos` addresses the document content. Use `setDocAttribute`\n    to set attributes on the document itself.\n    */\n    setNodeAttribute(pos, attr, value) {\n        this.step(new AttrStep(pos, attr, value));\n        return this;\n    }\n    /**\n    Set a single attribute on the document to a new value.\n    */\n    setDocAttribute(attr, value) {\n        this.step(new DocAttrStep(attr, value));\n        return this;\n    }\n    /**\n    Add a mark to the node at position `pos`.\n    */\n    addNodeMark(pos, mark) {\n        this.step(new AddNodeMarkStep(pos, mark));\n        return this;\n    }\n    /**\n    Remove a mark (or all marks of the given type) from the node at\n    position `pos`.\n    */\n    removeNodeMark(pos, mark) {\n        let node = this.doc.nodeAt(pos);\n        if (!node)\n            throw new RangeError(\"No node at position \" + pos);\n        if (mark instanceof Mark) {\n            if (mark.isInSet(node.marks))\n                this.step(new RemoveNodeMarkStep(pos, mark));\n        }\n        else {\n            let set = node.marks, found, steps = [];\n            while (found = mark.isInSet(set)) {\n                steps.push(new RemoveNodeMarkStep(pos, found));\n                set = found.removeFromSet(set);\n            }\n            for (let i = steps.length - 1; i >= 0; i--)\n                this.step(steps[i]);\n        }\n        return this;\n    }\n    /**\n    Split the node at the given position, and optionally, if `depth` is\n    greater than one, any number of nodes above that. By default, the\n    parts split off will inherit the node type of the original node.\n    This can be changed by passing an array of types and attributes to\n    use after the split (with the outermost nodes coming first).\n    */\n    split(pos, depth = 1, typesAfter) {\n        split(this, pos, depth, typesAfter);\n        return this;\n    }\n    /**\n    Add the given mark to the inline content between `from` and `to`.\n    */\n    addMark(from, to, mark) {\n        addMark(this, from, to, mark);\n        return this;\n    }\n    /**\n    Remove marks from inline nodes between `from` and `to`. When\n    `mark` is a single mark, remove precisely that mark. When it is\n    a mark type, remove all marks of that type. When it is null,\n    remove all marks of any type.\n    */\n    removeMark(from, to, mark) {\n        removeMark(this, from, to, mark);\n        return this;\n    }\n    /**\n    Removes all marks and nodes from the content of the node at\n    `pos` that don't match the given new parent node type. Accepts\n    an optional starting [content match](https://prosemirror.net/docs/ref/#model.ContentMatch) as\n    third argument.\n    */\n    clearIncompatible(pos, parentType, match) {\n        clearIncompatible(this, pos, parentType, match);\n        return this;\n    }\n}\n\nexport { AddMarkStep, AddNodeMarkStep, AttrStep, DocAttrStep, MapResult, Mapping, RemoveMarkStep, RemoveNodeMarkStep, ReplaceAroundStep, ReplaceStep, Step, StepMap, StepResult, Transform, TransformError, canJoin, canSplit, dropPoint, findWrapping, insertPoint, joinPoint, liftTarget, replaceStep };\n"],"names":[],"ignoreList":[0],"sourceRoot":""}\n//# sourceURL=webpack-internal:///(ssr)/./node_modules/prosemirror-transform/dist/index.js\n");
-
-/***/ })
-
-};
-;
\ No newline at end of file
diff --git a/.next/server/vendor-chunks/prosemirror-view.js b/.next/server/vendor-chunks/prosemirror-view.js
deleted file mode 100644
index eab2af6..0000000
--- a/.next/server/vendor-chunks/prosemirror-view.js
+++ /dev/null
@@ -1,25 +0,0 @@
-"use strict";
-/*
- * ATTENTION: An "eval-source-map" devtool has been used.
- * This devtool is neither made for production nor for readable output files.
- * It uses "eval()" calls to create a separate source file with attached SourceMaps in the browser devtools.
- * If you are trying to read the output file, select a different devtool (https://webpack.js.org/configuration/devtool/)
- * or disable the default devtool with "devtool: false".
- * If you are looking for production-ready output files, see mode: "production" (https://webpack.js.org/configuration/mode/).
- */
-exports.id = "vendor-chunks/prosemirror-view";
-exports.ids = ["vendor-chunks/prosemirror-view"];
-exports.modules = {
-
-/***/ "(ssr)/./node_modules/prosemirror-view/dist/index.js":
-/*!*****************************************************!*\
- !*** ./node_modules/prosemirror-view/dist/index.js ***!
- \*****************************************************/
-/***/ ((__unused_webpack___webpack_module__, __webpack_exports__, __webpack_require__) => {
-
-eval("__webpack_require__.r(__webpack_exports__);\n/* harmony export */ __webpack_require__.d(__webpack_exports__, {\n/* harmony export */ Decoration: () => (/* binding */ Decoration),\n/* harmony export */ DecorationSet: () => (/* binding */ DecorationSet),\n/* harmony export */ EditorView: () => (/* binding */ EditorView),\n/* harmony export */ __endComposition: () => (/* binding */ __endComposition),\n/* harmony export */ __parseFromClipboard: () => (/* binding */ __parseFromClipboard)\n/* harmony export */ });\n/* harmony import */ var prosemirror_state__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! prosemirror-state */ \"(ssr)/./node_modules/prosemirror-state/dist/index.js\");\n/* harmony import */ var prosemirror_model__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! prosemirror-model */ \"(ssr)/./node_modules/prosemirror-model/dist/index.js\");\n/* harmony import */ var prosemirror_transform__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! prosemirror-transform */ \"(ssr)/./node_modules/prosemirror-transform/dist/index.js\");\n\n\n\n\nconst domIndex = function (node) {\n for (var index = 0;; index++) {\n node = node.previousSibling;\n if (!node)\n return index;\n }\n};\nconst parentNode = function (node) {\n let parent = node.assignedSlot || node.parentNode;\n return parent && parent.nodeType == 11 ? parent.host : parent;\n};\nlet reusedRange = null;\n// Note that this will always return the same range, because DOM range\n// objects are every expensive, and keep slowing down subsequent DOM\n// updates, for some reason.\nconst textRange = function (node, from, to) {\n let range = reusedRange || (reusedRange = document.createRange());\n range.setEnd(node, to == null ? node.nodeValue.length : to);\n range.setStart(node, from || 0);\n return range;\n};\nconst clearReusedRange = function () {\n reusedRange = null;\n};\n// Scans forward and backward through DOM positions equivalent to the\n// given one to see if the two are in the same place (i.e. after a\n// text node vs at the end of that text node)\nconst isEquivalentPosition = function (node, off, targetNode, targetOff) {\n return targetNode && (scanFor(node, off, targetNode, targetOff, -1) ||\n scanFor(node, off, targetNode, targetOff, 1));\n};\nconst atomElements = /^(img|br|input|textarea|hr)$/i;\nfunction scanFor(node, off, targetNode, targetOff, dir) {\n var _a;\n for (;;) {\n if (node == targetNode && off == targetOff)\n return true;\n if (off == (dir < 0 ? 0 : nodeSize(node))) {\n let parent = node.parentNode;\n if (!parent || parent.nodeType != 1 || hasBlockDesc(node) || atomElements.test(node.nodeName) ||\n node.contentEditable == \"false\")\n return false;\n off = domIndex(node) + (dir < 0 ? 0 : 1);\n node = parent;\n }\n else if (node.nodeType == 1) {\n let child = node.childNodes[off + (dir < 0 ? -1 : 0)];\n if (child.nodeType == 1 && child.contentEditable == \"false\") {\n if ((_a = child.pmViewDesc) === null || _a === void 0 ? void 0 : _a.ignoreForSelection)\n off += dir;\n else\n return false;\n }\n else {\n node = child;\n off = dir < 0 ? nodeSize(node) : 0;\n }\n }\n else {\n return false;\n }\n }\n}\nfunction nodeSize(node) {\n return node.nodeType == 3 ? node.nodeValue.length : node.childNodes.length;\n}\nfunction textNodeBefore$1(node, offset) {\n for (;;) {\n if (node.nodeType == 3 && offset)\n return node;\n if (node.nodeType == 1 && offset > 0) {\n if (node.contentEditable == \"false\")\n return null;\n node = node.childNodes[offset - 1];\n offset = nodeSize(node);\n }\n else if (node.parentNode && !hasBlockDesc(node)) {\n offset = domIndex(node);\n node = node.parentNode;\n }\n else {\n return null;\n }\n }\n}\nfunction textNodeAfter$1(node, offset) {\n for (;;) {\n if (node.nodeType == 3 && offset < node.nodeValue.length)\n return node;\n if (node.nodeType == 1 && offset < node.childNodes.length) {\n if (node.contentEditable == \"false\")\n return null;\n node = node.childNodes[offset];\n offset = 0;\n }\n else if (node.parentNode && !hasBlockDesc(node)) {\n offset = domIndex(node) + 1;\n node = node.parentNode;\n }\n else {\n return null;\n }\n }\n}\nfunction isOnEdge(node, offset, parent) {\n for (let atStart = offset == 0, atEnd = offset == nodeSize(node); atStart || atEnd;) {\n if (node == parent)\n return true;\n let index = domIndex(node);\n node = node.parentNode;\n if (!node)\n return false;\n atStart = atStart && index == 0;\n atEnd = atEnd && index == nodeSize(node);\n }\n}\nfunction hasBlockDesc(dom) {\n let desc;\n for (let cur = dom; cur; cur = cur.parentNode)\n if (desc = cur.pmViewDesc)\n break;\n return desc && desc.node && desc.node.isBlock && (desc.dom == dom || desc.contentDOM == dom);\n}\n// Work around Chrome issue https://bugs.chromium.org/p/chromium/issues/detail?id=447523\n// (isCollapsed inappropriately returns true in shadow dom)\nconst selectionCollapsed = function (domSel) {\n return domSel.focusNode && isEquivalentPosition(domSel.focusNode, domSel.focusOffset, domSel.anchorNode, domSel.anchorOffset);\n};\nfunction keyEvent(keyCode, key) {\n let event = document.createEvent(\"Event\");\n event.initEvent(\"keydown\", true, true);\n event.keyCode = keyCode;\n event.key = event.code = key;\n return event;\n}\nfunction deepActiveElement(doc) {\n let elt = doc.activeElement;\n while (elt && elt.shadowRoot)\n elt = elt.shadowRoot.activeElement;\n return elt;\n}\nfunction caretFromPoint(doc, x, y) {\n if (doc.caretPositionFromPoint) {\n try { // Firefox throws for this call in hard-to-predict circumstances (#994)\n let pos = doc.caretPositionFromPoint(x, y);\n // Clip the offset, because Chrome will return a text offset\n // into nodes, which can't be treated as a regular DOM\n // offset\n if (pos)\n return { node: pos.offsetNode, offset: Math.min(nodeSize(pos.offsetNode), pos.offset) };\n }\n catch (_) { }\n }\n if (doc.caretRangeFromPoint) {\n let range = doc.caretRangeFromPoint(x, y);\n if (range)\n return { node: range.startContainer, offset: Math.min(nodeSize(range.startContainer), range.startOffset) };\n }\n}\n\nconst nav = typeof navigator != \"undefined\" ? navigator : null;\nconst doc = typeof document != \"undefined\" ? document : null;\nconst agent = (nav && nav.userAgent) || \"\";\nconst ie_edge = /Edge\\/(\\d+)/.exec(agent);\nconst ie_upto10 = /MSIE \\d/.exec(agent);\nconst ie_11up = /Trident\\/(?:[7-9]|\\d{2,})\\..*rv:(\\d+)/.exec(agent);\nconst ie = !!(ie_upto10 || ie_11up || ie_edge);\nconst ie_version = ie_upto10 ? document.documentMode : ie_11up ? +ie_11up[1] : ie_edge ? +ie_edge[1] : 0;\nconst gecko = !ie && /gecko\\/(\\d+)/i.test(agent);\ngecko && +(/Firefox\\/(\\d+)/.exec(agent) || [0, 0])[1];\nconst _chrome = !ie && /Chrome\\/(\\d+)/.exec(agent);\nconst chrome = !!_chrome;\nconst chrome_version = _chrome ? +_chrome[1] : 0;\nconst safari = !ie && !!nav && /Apple Computer/.test(nav.vendor);\n// Is true for both iOS and iPadOS for convenience\nconst ios = safari && (/Mobile\\/\\w+/.test(agent) || !!nav && nav.maxTouchPoints > 2);\nconst mac = ios || (nav ? /Mac/.test(nav.platform) : false);\nconst windows = nav ? /Win/.test(nav.platform) : false;\nconst android = /Android \\d/.test(agent);\nconst webkit = !!doc && \"webkitFontSmoothing\" in doc.documentElement.style;\nconst webkit_version = webkit ? +(/\\bAppleWebKit\\/(\\d+)/.exec(navigator.userAgent) || [0, 0])[1] : 0;\n\nfunction windowRect(doc) {\n let vp = doc.defaultView && doc.defaultView.visualViewport;\n if (vp)\n return {\n left: 0, right: vp.width,\n top: 0, bottom: vp.height\n };\n return { left: 0, right: doc.documentElement.clientWidth,\n top: 0, bottom: doc.documentElement.clientHeight };\n}\nfunction getSide(value, side) {\n return typeof value == \"number\" ? value : value[side];\n}\nfunction clientRect(node) {\n let rect = node.getBoundingClientRect();\n // Adjust for elements with style \"transform: scale()\"\n let scaleX = (rect.width / node.offsetWidth) || 1;\n let scaleY = (rect.height / node.offsetHeight) || 1;\n // Make sure scrollbar width isn't included in the rectangle\n return { left: rect.left, right: rect.left + node.clientWidth * scaleX,\n top: rect.top, bottom: rect.top + node.clientHeight * scaleY };\n}\nfunction scrollRectIntoView(view, rect, startDOM) {\n let scrollThreshold = view.someProp(\"scrollThreshold\") || 0, scrollMargin = view.someProp(\"scrollMargin\") || 5;\n let doc = view.dom.ownerDocument;\n for (let parent = startDOM || view.dom;;) {\n if (!parent)\n break;\n if (parent.nodeType != 1) {\n parent = parentNode(parent);\n continue;\n }\n let elt = parent;\n let atTop = elt == doc.body;\n let bounding = atTop ? windowRect(doc) : clientRect(elt);\n let moveX = 0, moveY = 0;\n if (rect.top < bounding.top + getSide(scrollThreshold, \"top\"))\n moveY = -(bounding.top - rect.top + getSide(scrollMargin, \"top\"));\n else if (rect.bottom > bounding.bottom - getSide(scrollThreshold, \"bottom\"))\n moveY = rect.bottom - rect.top > bounding.bottom - bounding.top\n ? rect.top + getSide(scrollMargin, \"top\") - bounding.top\n : rect.bottom - bounding.bottom + getSide(scrollMargin, \"bottom\");\n if (rect.left < bounding.left + getSide(scrollThreshold, \"left\"))\n moveX = -(bounding.left - rect.left + getSide(scrollMargin, \"left\"));\n else if (rect.right > bounding.right - getSide(scrollThreshold, \"right\"))\n moveX = rect.right - bounding.right + getSide(scrollMargin, \"right\");\n if (moveX || moveY) {\n if (atTop) {\n doc.defaultView.scrollBy(moveX, moveY);\n }\n else {\n let startX = elt.scrollLeft, startY = elt.scrollTop;\n if (moveY)\n elt.scrollTop += moveY;\n if (moveX)\n elt.scrollLeft += moveX;\n let dX = elt.scrollLeft - startX, dY = elt.scrollTop - startY;\n rect = { left: rect.left - dX, top: rect.top - dY, right: rect.right - dX, bottom: rect.bottom - dY };\n }\n }\n let pos = atTop ? \"fixed\" : getComputedStyle(parent).position;\n if (/^(fixed|sticky)$/.test(pos))\n break;\n parent = pos == \"absolute\" ? parent.offsetParent : parentNode(parent);\n }\n}\n// Store the scroll position of the editor's parent nodes, along with\n// the top position of an element near the top of the editor, which\n// will be used to make sure the visible viewport remains stable even\n// when the size of the content above changes.\nfunction storeScrollPos(view) {\n let rect = view.dom.getBoundingClientRect(), startY = Math.max(0, rect.top);\n let refDOM, refTop;\n for (let x = (rect.left + rect.right) / 2, y = startY + 1; y < Math.min(innerHeight, rect.bottom); y += 5) {\n let dom = view.root.elementFromPoint(x, y);\n if (!dom || dom == view.dom || !view.dom.contains(dom))\n continue;\n let localRect = dom.getBoundingClientRect();\n if (localRect.top >= startY - 20) {\n refDOM = dom;\n refTop = localRect.top;\n break;\n }\n }\n return { refDOM: refDOM, refTop: refTop, stack: scrollStack(view.dom) };\n}\nfunction scrollStack(dom) {\n let stack = [], doc = dom.ownerDocument;\n for (let cur = dom; cur; cur = parentNode(cur)) {\n stack.push({ dom: cur, top: cur.scrollTop, left: cur.scrollLeft });\n if (dom == doc)\n break;\n }\n return stack;\n}\n// Reset the scroll position of the editor's parent nodes to that what\n// it was before, when storeScrollPos was called.\nfunction resetScrollPos({ refDOM, refTop, stack }) {\n let newRefTop = refDOM ? refDOM.getBoundingClientRect().top : 0;\n restoreScrollStack(stack, newRefTop == 0 ? 0 : newRefTop - refTop);\n}\nfunction restoreScrollStack(stack, dTop) {\n for (let i = 0; i < stack.length; i++) {\n let { dom, top, left } = stack[i];\n if (dom.scrollTop != top + dTop)\n dom.scrollTop = top + dTop;\n if (dom.scrollLeft != left)\n dom.scrollLeft = left;\n }\n}\nlet preventScrollSupported = null;\n// Feature-detects support for .focus({preventScroll: true}), and uses\n// a fallback kludge when not supported.\nfunction focusPreventScroll(dom) {\n if (dom.setActive)\n return dom.setActive(); // in IE\n if (preventScrollSupported)\n return dom.focus(preventScrollSupported);\n let stored = scrollStack(dom);\n dom.focus(preventScrollSupported == null ? {\n get preventScroll() {\n preventScrollSupported = { preventScroll: true };\n return true;\n }\n } : undefined);\n if (!preventScrollSupported) {\n preventScrollSupported = false;\n restoreScrollStack(stored, 0);\n }\n}\nfunction findOffsetInNode(node, coords) {\n let closest, dxClosest = 2e8, coordsClosest, offset = 0;\n let rowBot = coords.top, rowTop = coords.top;\n let firstBelow, coordsBelow;\n for (let child = node.firstChild, childIndex = 0; child; child = child.nextSibling, childIndex++) {\n let rects;\n if (child.nodeType == 1)\n rects = child.getClientRects();\n else if (child.nodeType == 3)\n rects = textRange(child).getClientRects();\n else\n continue;\n for (let i = 0; i < rects.length; i++) {\n let rect = rects[i];\n if (rect.top <= rowBot && rect.bottom >= rowTop) {\n rowBot = Math.max(rect.bottom, rowBot);\n rowTop = Math.min(rect.top, rowTop);\n let dx = rect.left > coords.left ? rect.left - coords.left\n : rect.right < coords.left ? coords.left - rect.right : 0;\n if (dx < dxClosest) {\n closest = child;\n dxClosest = dx;\n coordsClosest = dx && closest.nodeType == 3 ? {\n left: rect.right < coords.left ? rect.right : rect.left,\n top: coords.top\n } : coords;\n if (child.nodeType == 1 && dx)\n offset = childIndex + (coords.left >= (rect.left + rect.right) / 2 ? 1 : 0);\n continue;\n }\n }\n else if (rect.top > coords.top && !firstBelow && rect.left <= coords.left && rect.right >= coords.left) {\n firstBelow = child;\n coordsBelow = { left: Math.max(rect.left, Math.min(rect.right, coords.left)), top: rect.top };\n }\n if (!closest && (coords.left >= rect.right && coords.top >= rect.top ||\n coords.left >= rect.left && coords.top >= rect.bottom))\n offset = childIndex + 1;\n }\n }\n if (!closest && firstBelow) {\n closest = firstBelow;\n coordsClosest = coordsBelow;\n dxClosest = 0;\n }\n if (closest && closest.nodeType == 3)\n return findOffsetInText(closest, coordsClosest);\n if (!closest || (dxClosest && closest.nodeType == 1))\n return { node, offset };\n return findOffsetInNode(closest, coordsClosest);\n}\nfunction findOffsetInText(node, coords) {\n let len = node.nodeValue.length;\n let range = document.createRange(), result;\n for (let i = 0; i < len; i++) {\n range.setEnd(node, i + 1);\n range.setStart(node, i);\n let rect = singleRect(range, 1);\n if (rect.top == rect.bottom)\n continue;\n if (inRect(coords, rect)) {\n result = { node, offset: i + (coords.left >= (rect.left + rect.right) / 2 ? 1 : 0) };\n break;\n }\n }\n range.detach();\n return result || { node, offset: 0 };\n}\nfunction inRect(coords, rect) {\n return coords.left >= rect.left - 1 && coords.left <= rect.right + 1 &&\n coords.top >= rect.top - 1 && coords.top <= rect.bottom + 1;\n}\nfunction targetKludge(dom, coords) {\n let parent = dom.parentNode;\n if (parent && /^li$/i.test(parent.nodeName) && coords.left < dom.getBoundingClientRect().left)\n return parent;\n return dom;\n}\nfunction posFromElement(view, elt, coords) {\n let { node, offset } = findOffsetInNode(elt, coords), bias = -1;\n if (node.nodeType == 1 && !node.firstChild) {\n let rect = node.getBoundingClientRect();\n bias = rect.left != rect.right && coords.left > (rect.left + rect.right) / 2 ? 1 : -1;\n }\n return view.docView.posFromDOM(node, offset, bias);\n}\nfunction posFromCaret(view, node, offset, coords) {\n // Browser (in caretPosition/RangeFromPoint) will agressively\n // normalize towards nearby inline nodes. Since we are interested in\n // positions between block nodes too, we first walk up the hierarchy\n // of nodes to see if there are block nodes that the coordinates\n // fall outside of. If so, we take the position before/after that\n // block. If not, we call `posFromDOM` on the raw node/offset.\n let outsideBlock = -1;\n for (let cur = node, sawBlock = false;;) {\n if (cur == view.dom)\n break;\n let desc = view.docView.nearestDesc(cur, true), rect;\n if (!desc)\n return null;\n if (desc.dom.nodeType == 1 && (desc.node.isBlock && desc.parent || !desc.contentDOM) &&\n // Ignore elements with zero-size bounding rectangles\n ((rect = desc.dom.getBoundingClientRect()).width || rect.height)) {\n if (desc.node.isBlock && desc.parent && !/^T(R|BODY|HEAD|FOOT)$/.test(desc.dom.nodeName)) {\n // Only apply the horizontal test to the innermost block. Vertical for any parent.\n if (!sawBlock && rect.left > coords.left || rect.top > coords.top)\n outsideBlock = desc.posBefore;\n else if (!sawBlock && rect.right < coords.left || rect.bottom < coords.top)\n outsideBlock = desc.posAfter;\n sawBlock = true;\n }\n if (!desc.contentDOM && outsideBlock < 0 && !desc.node.isText) {\n // If we are inside a leaf, return the side of the leaf closer to the coords\n let before = desc.node.isBlock ? coords.top < (rect.top + rect.bottom) / 2\n : coords.left < (rect.left + rect.right) / 2;\n return before ? desc.posBefore : desc.posAfter;\n }\n }\n cur = desc.dom.parentNode;\n }\n return outsideBlock > -1 ? outsideBlock : view.docView.posFromDOM(node, offset, -1);\n}\nfunction elementFromPoint(element, coords, box) {\n let len = element.childNodes.length;\n if (len && box.top < box.bottom) {\n for (let startI = Math.max(0, Math.min(len - 1, Math.floor(len * (coords.top - box.top) / (box.bottom - box.top)) - 2)), i = startI;;) {\n let child = element.childNodes[i];\n if (child.nodeType == 1) {\n let rects = child.getClientRects();\n for (let j = 0; j < rects.length; j++) {\n let rect = rects[j];\n if (inRect(coords, rect))\n return elementFromPoint(child, coords, rect);\n }\n }\n if ((i = (i + 1) % len) == startI)\n break;\n }\n }\n return element;\n}\n// Given an x,y position on the editor, get the position in the document.\nfunction posAtCoords(view, coords) {\n let doc = view.dom.ownerDocument, node, offset = 0;\n let caret = caretFromPoint(doc, coords.left, coords.top);\n if (caret)\n ({ node, offset } = caret);\n let elt = (view.root.elementFromPoint ? view.root : doc)\n .elementFromPoint(coords.left, coords.top);\n let pos;\n if (!elt || !view.dom.contains(elt.nodeType != 1 ? elt.parentNode : elt)) {\n let box = view.dom.getBoundingClientRect();\n if (!inRect(coords, box))\n return null;\n elt = elementFromPoint(view.dom, coords, box);\n if (!elt)\n return null;\n }\n // Safari's caretRangeFromPoint returns nonsense when on a draggable element\n if (safari) {\n for (let p = elt; node && p; p = parentNode(p))\n if (p.draggable)\n node = undefined;\n }\n elt = targetKludge(elt, coords);\n if (node) {\n if (gecko && node.nodeType == 1) {\n // Firefox will sometimes return offsets into nodes, which\n // have no actual children, from caretPositionFromPoint (#953)\n offset = Math.min(offset, node.childNodes.length);\n // It'll also move the returned position before image nodes,\n // even if those are behind it.\n if (offset < node.childNodes.length) {\n let next = node.childNodes[offset], box;\n if (next.nodeName == \"IMG\" && (box = next.getBoundingClientRect()).right <= coords.left &&\n box.bottom > coords.top)\n offset++;\n }\n }\n let prev;\n // When clicking above the right side of an uneditable node, Chrome will report a cursor position after that node.\n if (webkit && offset && node.nodeType == 1 && (prev = node.childNodes[offset - 1]).nodeType == 1 &&\n prev.contentEditable == \"false\" && prev.getBoundingClientRect().top >= coords.top)\n offset--;\n // Suspiciously specific kludge to work around caret*FromPoint\n // never returning a position at the end of the document\n if (node == view.dom && offset == node.childNodes.length - 1 && node.lastChild.nodeType == 1 &&\n coords.top > node.lastChild.getBoundingClientRect().bottom)\n pos = view.state.doc.content.size;\n // Ignore positions directly after a BR, since caret*FromPoint\n // 'round up' positions that would be more accurately placed\n // before the BR node.\n else if (offset == 0 || node.nodeType != 1 || node.childNodes[offset - 1].nodeName != \"BR\")\n pos = posFromCaret(view, node, offset, coords);\n }\n if (pos == null)\n pos = posFromElement(view, elt, coords);\n let desc = view.docView.nearestDesc(elt, true);\n return { pos, inside: desc ? desc.posAtStart - desc.border : -1 };\n}\nfunction nonZero(rect) {\n return rect.top < rect.bottom || rect.left < rect.right;\n}\nfunction singleRect(target, bias) {\n let rects = target.getClientRects();\n if (rects.length) {\n let first = rects[bias < 0 ? 0 : rects.length - 1];\n if (nonZero(first))\n return first;\n }\n return Array.prototype.find.call(rects, nonZero) || target.getBoundingClientRect();\n}\nconst BIDI = /[\\u0590-\\u05f4\\u0600-\\u06ff\\u0700-\\u08ac]/;\n// Given a position in the document model, get a bounding box of the\n// character at that position, relative to the window.\nfunction coordsAtPos(view, pos, side) {\n let { node, offset, atom } = view.docView.domFromPos(pos, side < 0 ? -1 : 1);\n let supportEmptyRange = webkit || gecko;\n if (node.nodeType == 3) {\n // These browsers support querying empty text ranges. Prefer that in\n // bidi context or when at the end of a node.\n if (supportEmptyRange && (BIDI.test(node.nodeValue) || (side < 0 ? !offset : offset == node.nodeValue.length))) {\n let rect = singleRect(textRange(node, offset, offset), side);\n // Firefox returns bad results (the position before the space)\n // when querying a position directly after line-broken\n // whitespace. Detect this situation and and kludge around it\n if (gecko && offset && /\\s/.test(node.nodeValue[offset - 1]) && offset < node.nodeValue.length) {\n let rectBefore = singleRect(textRange(node, offset - 1, offset - 1), -1);\n if (rectBefore.top == rect.top) {\n let rectAfter = singleRect(textRange(node, offset, offset + 1), -1);\n if (rectAfter.top != rect.top)\n return flattenV(rectAfter, rectAfter.left < rectBefore.left);\n }\n }\n return rect;\n }\n else {\n let from = offset, to = offset, takeSide = side < 0 ? 1 : -1;\n if (side < 0 && !offset) {\n to++;\n takeSide = -1;\n }\n else if (side >= 0 && offset == node.nodeValue.length) {\n from--;\n takeSide = 1;\n }\n else if (side < 0) {\n from--;\n }\n else {\n to++;\n }\n return flattenV(singleRect(textRange(node, from, to), takeSide), takeSide < 0);\n }\n }\n let $dom = view.state.doc.resolve(pos - (atom || 0));\n // Return a horizontal line in block context\n if (!$dom.parent.inlineContent) {\n if (atom == null && offset && (side < 0 || offset == nodeSize(node))) {\n let before = node.childNodes[offset - 1];\n if (before.nodeType == 1)\n return flattenH(before.getBoundingClientRect(), false);\n }\n if (atom == null && offset < nodeSize(node)) {\n let after = node.childNodes[offset];\n if (after.nodeType == 1)\n return flattenH(after.getBoundingClientRect(), true);\n }\n return flattenH(node.getBoundingClientRect(), side >= 0);\n }\n // Inline, not in text node (this is not Bidi-safe)\n if (atom == null && offset && (side < 0 || offset == nodeSize(node))) {\n let before = node.childNodes[offset - 1];\n let target = before.nodeType == 3 ? textRange(before, nodeSize(before) - (supportEmptyRange ? 0 : 1))\n // BR nodes tend to only return the rectangle before them.\n // Only use them if they are the last element in their parent\n : before.nodeType == 1 && (before.nodeName != \"BR\" || !before.nextSibling) ? before : null;\n if (target)\n return flattenV(singleRect(target, 1), false);\n }\n if (atom == null && offset < nodeSize(node)) {\n let after = node.childNodes[offset];\n while (after.pmViewDesc && after.pmViewDesc.ignoreForCoords)\n after = after.nextSibling;\n let target = !after ? null : after.nodeType == 3 ? textRange(after, 0, (supportEmptyRange ? 0 : 1))\n : after.nodeType == 1 ? after : null;\n if (target)\n return flattenV(singleRect(target, -1), true);\n }\n // All else failed, just try to get a rectangle for the target node\n return flattenV(singleRect(node.nodeType == 3 ? textRange(node) : node, -side), side >= 0);\n}\nfunction flattenV(rect, left) {\n if (rect.width == 0)\n return rect;\n let x = left ? rect.left : rect.right;\n return { top: rect.top, bottom: rect.bottom, left: x, right: x };\n}\nfunction flattenH(rect, top) {\n if (rect.height == 0)\n return rect;\n let y = top ? rect.top : rect.bottom;\n return { top: y, bottom: y, left: rect.left, right: rect.right };\n}\nfunction withFlushedState(view, state, f) {\n let viewState = view.state, active = view.root.activeElement;\n if (viewState != state)\n view.updateState(state);\n if (active != view.dom)\n view.focus();\n try {\n return f();\n }\n finally {\n if (viewState != state)\n view.updateState(viewState);\n if (active != view.dom && active)\n active.focus();\n }\n}\n// Whether vertical position motion in a given direction\n// from a position would leave a text block.\nfunction endOfTextblockVertical(view, state, dir) {\n let sel = state.selection;\n let $pos = dir == \"up\" ? sel.$from : sel.$to;\n return withFlushedState(view, state, () => {\n let { node: dom } = view.docView.domFromPos($pos.pos, dir == \"up\" ? -1 : 1);\n for (;;) {\n let nearest = view.docView.nearestDesc(dom, true);\n if (!nearest)\n break;\n if (nearest.node.isBlock) {\n dom = nearest.contentDOM || nearest.dom;\n break;\n }\n dom = nearest.dom.parentNode;\n }\n let coords = coordsAtPos(view, $pos.pos, 1);\n for (let child = dom.firstChild; child; child = child.nextSibling) {\n let boxes;\n if (child.nodeType == 1)\n boxes = child.getClientRects();\n else if (child.nodeType == 3)\n boxes = textRange(child, 0, child.nodeValue.length).getClientRects();\n else\n continue;\n for (let i = 0; i < boxes.length; i++) {\n let box = boxes[i];\n if (box.bottom > box.top + 1 &&\n (dir == \"up\" ? coords.top - box.top > (box.bottom - coords.top) * 2\n : box.bottom - coords.bottom > (coords.bottom - box.top) * 2))\n return false;\n }\n }\n return true;\n });\n}\nconst maybeRTL = /[\\u0590-\\u08ac]/;\nfunction endOfTextblockHorizontal(view, state, dir) {\n let { $head } = state.selection;\n if (!$head.parent.isTextblock)\n return false;\n let offset = $head.parentOffset, atStart = !offset, atEnd = offset == $head.parent.content.size;\n let sel = view.domSelection();\n if (!sel)\n return $head.pos == $head.start() || $head.pos == $head.end();\n // If the textblock is all LTR, or the browser doesn't support\n // Selection.modify (Edge), fall back to a primitive approach\n if (!maybeRTL.test($head.parent.textContent) || !sel.modify)\n return dir == \"left\" || dir == \"backward\" ? atStart : atEnd;\n return withFlushedState(view, state, () => {\n // This is a huge hack, but appears to be the best we can\n // currently do: use `Selection.modify` to move the selection by\n // one character, and see if that moves the cursor out of the\n // textblock (or doesn't move it at all, when at the start/end of\n // the document).\n let { focusNode: oldNode, focusOffset: oldOff, anchorNode, anchorOffset } = view.domSelectionRange();\n let oldBidiLevel = sel.caretBidiLevel // Only for Firefox\n ;\n sel.modify(\"move\", dir, \"character\");\n let parentDOM = $head.depth ? view.docView.domAfterPos($head.before()) : view.dom;\n let { focusNode: newNode, focusOffset: newOff } = view.domSelectionRange();\n let result = newNode && !parentDOM.contains(newNode.nodeType == 1 ? newNode : newNode.parentNode) ||\n (oldNode == newNode && oldOff == newOff);\n // Restore the previous selection\n try {\n sel.collapse(anchorNode, anchorOffset);\n if (oldNode && (oldNode != anchorNode || oldOff != anchorOffset) && sel.extend)\n sel.extend(oldNode, oldOff);\n }\n catch (_) { }\n if (oldBidiLevel != null)\n sel.caretBidiLevel = oldBidiLevel;\n return result;\n });\n}\nlet cachedState = null;\nlet cachedDir = null;\nlet cachedResult = false;\nfunction endOfTextblock(view, state, dir) {\n if (cachedState == state && cachedDir == dir)\n return cachedResult;\n cachedState = state;\n cachedDir = dir;\n return cachedResult = dir == \"up\" || dir == \"down\"\n ? endOfTextblockVertical(view, state, dir)\n : endOfTextblockHorizontal(view, state, dir);\n}\n\n// View descriptions are data structures that describe the DOM that is\n// used to represent the editor's content. They are used for:\n//\n// - Incremental redrawing when the document changes\n//\n// - Figuring out what part of the document a given DOM position\n// corresponds to\n//\n// - Wiring in custom implementations of the editing interface for a\n// given node\n//\n// They form a doubly-linked mutable tree, starting at `view.docView`.\nconst NOT_DIRTY = 0, CHILD_DIRTY = 1, CONTENT_DIRTY = 2, NODE_DIRTY = 3;\n// Superclass for the various kinds of descriptions. Defines their\n// basic structure and shared methods.\nclass ViewDesc {\n constructor(parent, children, dom, \n // This is the node that holds the child views. It may be null for\n // descs that don't have children.\n contentDOM) {\n this.parent = parent;\n this.children = children;\n this.dom = dom;\n this.contentDOM = contentDOM;\n this.dirty = NOT_DIRTY;\n // An expando property on the DOM node provides a link back to its\n // description.\n dom.pmViewDesc = this;\n }\n // Used to check whether a given description corresponds to a\n // widget/mark/node.\n matchesWidget(widget) { return false; }\n matchesMark(mark) { return false; }\n matchesNode(node, outerDeco, innerDeco) { return false; }\n matchesHack(nodeName) { return false; }\n // When parsing in-editor content (in domchange.js), we allow\n // descriptions to determine the parse rules that should be used to\n // parse them.\n parseRule() { return null; }\n // Used by the editor's event handler to ignore events that come\n // from certain descs.\n stopEvent(event) { return false; }\n // The size of the content represented by this desc.\n get size() {\n let size = 0;\n for (let i = 0; i < this.children.length; i++)\n size += this.children[i].size;\n return size;\n }\n // For block nodes, this represents the space taken up by their\n // start/end tokens.\n get border() { return 0; }\n destroy() {\n this.parent = undefined;\n if (this.dom.pmViewDesc == this)\n this.dom.pmViewDesc = undefined;\n for (let i = 0; i < this.children.length; i++)\n this.children[i].destroy();\n }\n posBeforeChild(child) {\n for (let i = 0, pos = this.posAtStart;; i++) {\n let cur = this.children[i];\n if (cur == child)\n return pos;\n pos += cur.size;\n }\n }\n get posBefore() {\n return this.parent.posBeforeChild(this);\n }\n get posAtStart() {\n return this.parent ? this.parent.posBeforeChild(this) + this.border : 0;\n }\n get posAfter() {\n return this.posBefore + this.size;\n }\n get posAtEnd() {\n return this.posAtStart + this.size - 2 * this.border;\n }\n localPosFromDOM(dom, offset, bias) {\n // If the DOM position is in the content, use the child desc after\n // it to figure out a position.\n if (this.contentDOM && this.contentDOM.contains(dom.nodeType == 1 ? dom : dom.parentNode)) {\n if (bias < 0) {\n let domBefore, desc;\n if (dom == this.contentDOM) {\n domBefore = dom.childNodes[offset - 1];\n }\n else {\n while (dom.parentNode != this.contentDOM)\n dom = dom.parentNode;\n domBefore = dom.previousSibling;\n }\n while (domBefore && !((desc = domBefore.pmViewDesc) && desc.parent == this))\n domBefore = domBefore.previousSibling;\n return domBefore ? this.posBeforeChild(desc) + desc.size : this.posAtStart;\n }\n else {\n let domAfter, desc;\n if (dom == this.contentDOM) {\n domAfter = dom.childNodes[offset];\n }\n else {\n while (dom.parentNode != this.contentDOM)\n dom = dom.parentNode;\n domAfter = dom.nextSibling;\n }\n while (domAfter && !((desc = domAfter.pmViewDesc) && desc.parent == this))\n domAfter = domAfter.nextSibling;\n return domAfter ? this.posBeforeChild(desc) : this.posAtEnd;\n }\n }\n // Otherwise, use various heuristics, falling back on the bias\n // parameter, to determine whether to return the position at the\n // start or at the end of this view desc.\n let atEnd;\n if (dom == this.dom && this.contentDOM) {\n atEnd = offset > domIndex(this.contentDOM);\n }\n else if (this.contentDOM && this.contentDOM != this.dom && this.dom.contains(this.contentDOM)) {\n atEnd = dom.compareDocumentPosition(this.contentDOM) & 2;\n }\n else if (this.dom.firstChild) {\n if (offset == 0)\n for (let search = dom;; search = search.parentNode) {\n if (search == this.dom) {\n atEnd = false;\n break;\n }\n if (search.previousSibling)\n break;\n }\n if (atEnd == null && offset == dom.childNodes.length)\n for (let search = dom;; search = search.parentNode) {\n if (search == this.dom) {\n atEnd = true;\n break;\n }\n if (search.nextSibling)\n break;\n }\n }\n return (atEnd == null ? bias > 0 : atEnd) ? this.posAtEnd : this.posAtStart;\n }\n nearestDesc(dom, onlyNodes = false) {\n for (let first = true, cur = dom; cur; cur = cur.parentNode) {\n let desc = this.getDesc(cur), nodeDOM;\n if (desc && (!onlyNodes || desc.node)) {\n // If dom is outside of this desc's nodeDOM, don't count it.\n if (first && (nodeDOM = desc.nodeDOM) &&\n !(nodeDOM.nodeType == 1 ? nodeDOM.contains(dom.nodeType == 1 ? dom : dom.parentNode) : nodeDOM == dom))\n first = false;\n else\n return desc;\n }\n }\n }\n getDesc(dom) {\n let desc = dom.pmViewDesc;\n for (let cur = desc; cur; cur = cur.parent)\n if (cur == this)\n return desc;\n }\n posFromDOM(dom, offset, bias) {\n for (let scan = dom; scan; scan = scan.parentNode) {\n let desc = this.getDesc(scan);\n if (desc)\n return desc.localPosFromDOM(dom, offset, bias);\n }\n return -1;\n }\n // Find the desc for the node after the given pos, if any. (When a\n // parent node overrode rendering, there might not be one.)\n descAt(pos) {\n for (let i = 0, offset = 0; i < this.children.length; i++) {\n let child = this.children[i], end = offset + child.size;\n if (offset == pos && end != offset) {\n while (!child.border && child.children.length) {\n for (let i = 0; i < child.children.length; i++) {\n let inner = child.children[i];\n if (inner.size) {\n child = inner;\n break;\n }\n }\n }\n return child;\n }\n if (pos < end)\n return child.descAt(pos - offset - child.border);\n offset = end;\n }\n }\n domFromPos(pos, side) {\n if (!this.contentDOM)\n return { node: this.dom, offset: 0, atom: pos + 1 };\n // First find the position in the child array\n let i = 0, offset = 0;\n for (let curPos = 0; i < this.children.length; i++) {\n let child = this.children[i], end = curPos + child.size;\n if (end > pos || child instanceof TrailingHackViewDesc) {\n offset = pos - curPos;\n break;\n }\n curPos = end;\n }\n // If this points into the middle of a child, call through\n if (offset)\n return this.children[i].domFromPos(offset - this.children[i].border, side);\n // Go back if there were any zero-length widgets with side >= 0 before this point\n for (let prev; i && !(prev = this.children[i - 1]).size && prev instanceof WidgetViewDesc && prev.side >= 0; i--) { }\n // Scan towards the first useable node\n if (side <= 0) {\n let prev, enter = true;\n for (;; i--, enter = false) {\n prev = i ? this.children[i - 1] : null;\n if (!prev || prev.dom.parentNode == this.contentDOM)\n break;\n }\n if (prev && side && enter && !prev.border && !prev.domAtom)\n return prev.domFromPos(prev.size, side);\n return { node: this.contentDOM, offset: prev ? domIndex(prev.dom) + 1 : 0 };\n }\n else {\n let next, enter = true;\n for (;; i++, enter = false) {\n next = i < this.children.length ? this.children[i] : null;\n if (!next || next.dom.parentNode == this.contentDOM)\n break;\n }\n if (next && enter && !next.border && !next.domAtom)\n return next.domFromPos(0, side);\n return { node: this.contentDOM, offset: next ? domIndex(next.dom) : this.contentDOM.childNodes.length };\n }\n }\n // Used to find a DOM range in a single parent for a given changed\n // range.\n parseRange(from, to, base = 0) {\n if (this.children.length == 0)\n return { node: this.contentDOM, from, to, fromOffset: 0, toOffset: this.contentDOM.childNodes.length };\n let fromOffset = -1, toOffset = -1;\n for (let offset = base, i = 0;; i++) {\n let child = this.children[i], end = offset + child.size;\n if (fromOffset == -1 && from <= end) {\n let childBase = offset + child.border;\n // FIXME maybe descend mark views to parse a narrower range?\n if (from >= childBase && to <= end - child.border && child.node &&\n child.contentDOM && this.contentDOM.contains(child.contentDOM))\n return child.parseRange(from, to, childBase);\n from = offset;\n for (let j = i; j > 0; j--) {\n let prev = this.children[j - 1];\n if (prev.size && prev.dom.parentNode == this.contentDOM && !prev.emptyChildAt(1)) {\n fromOffset = domIndex(prev.dom) + 1;\n break;\n }\n from -= prev.size;\n }\n if (fromOffset == -1)\n fromOffset = 0;\n }\n if (fromOffset > -1 && (end > to || i == this.children.length - 1)) {\n to = end;\n for (let j = i + 1; j < this.children.length; j++) {\n let next = this.children[j];\n if (next.size && next.dom.parentNode == this.contentDOM && !next.emptyChildAt(-1)) {\n toOffset = domIndex(next.dom);\n break;\n }\n to += next.size;\n }\n if (toOffset == -1)\n toOffset = this.contentDOM.childNodes.length;\n break;\n }\n offset = end;\n }\n return { node: this.contentDOM, from, to, fromOffset, toOffset };\n }\n emptyChildAt(side) {\n if (this.border || !this.contentDOM || !this.children.length)\n return false;\n let child = this.children[side < 0 ? 0 : this.children.length - 1];\n return child.size == 0 || child.emptyChildAt(side);\n }\n domAfterPos(pos) {\n let { node, offset } = this.domFromPos(pos, 0);\n if (node.nodeType != 1 || offset == node.childNodes.length)\n throw new RangeError(\"No node after pos \" + pos);\n return node.childNodes[offset];\n }\n // View descs are responsible for setting any selection that falls\n // entirely inside of them, so that custom implementations can do\n // custom things with the selection. Note that this falls apart when\n // a selection starts in such a node and ends in another, in which\n // case we just use whatever domFromPos produces as a best effort.\n setSelection(anchor, head, view, force = false) {\n // If the selection falls entirely in a child, give it to that child\n let from = Math.min(anchor, head), to = Math.max(anchor, head);\n for (let i = 0, offset = 0; i < this.children.length; i++) {\n let child = this.children[i], end = offset + child.size;\n if (from > offset && to < end)\n return child.setSelection(anchor - offset - child.border, head - offset - child.border, view, force);\n offset = end;\n }\n let anchorDOM = this.domFromPos(anchor, anchor ? -1 : 1);\n let headDOM = head == anchor ? anchorDOM : this.domFromPos(head, head ? -1 : 1);\n let domSel = view.root.getSelection();\n let selRange = view.domSelectionRange();\n let brKludge = false;\n // On Firefox, using Selection.collapse to put the cursor after a\n // BR node for some reason doesn't always work (#1073). On Safari,\n // the cursor sometimes inexplicable visually lags behind its\n // reported position in such situations (#1092).\n if ((gecko || safari) && anchor == head) {\n let { node, offset } = anchorDOM;\n if (node.nodeType == 3) {\n brKludge = !!(offset && node.nodeValue[offset - 1] == \"\\n\");\n // Issue #1128\n if (brKludge && offset == node.nodeValue.length) {\n for (let scan = node, after; scan; scan = scan.parentNode) {\n if (after = scan.nextSibling) {\n if (after.nodeName == \"BR\")\n anchorDOM = headDOM = { node: after.parentNode, offset: domIndex(after) + 1 };\n break;\n }\n let desc = scan.pmViewDesc;\n if (desc && desc.node && desc.node.isBlock)\n break;\n }\n }\n }\n else {\n let prev = node.childNodes[offset - 1];\n brKludge = prev && (prev.nodeName == \"BR\" || prev.contentEditable == \"false\");\n }\n }\n // Firefox can act strangely when the selection is in front of an\n // uneditable node. See #1163 and https://bugzilla.mozilla.org/show_bug.cgi?id=1709536\n if (gecko && selRange.focusNode && selRange.focusNode != headDOM.node && selRange.focusNode.nodeType == 1) {\n let after = selRange.focusNode.childNodes[selRange.focusOffset];\n if (after && after.contentEditable == \"false\")\n force = true;\n }\n if (!(force || brKludge && safari) &&\n isEquivalentPosition(anchorDOM.node, anchorDOM.offset, selRange.anchorNode, selRange.anchorOffset) &&\n isEquivalentPosition(headDOM.node, headDOM.offset, selRange.focusNode, selRange.focusOffset))\n return;\n // Selection.extend can be used to create an 'inverted' selection\n // (one where the focus is before the anchor), but not all\n // browsers support it yet.\n let domSelExtended = false;\n if ((domSel.extend || anchor == head) && !(brKludge && gecko)) {\n domSel.collapse(anchorDOM.node, anchorDOM.offset);\n try {\n if (anchor != head)\n domSel.extend(headDOM.node, headDOM.offset);\n domSelExtended = true;\n }\n catch (_) {\n // In some cases with Chrome the selection is empty after calling\n // collapse, even when it should be valid. This appears to be a bug, but\n // it is difficult to isolate. If this happens fallback to the old path\n // without using extend.\n // Similarly, this could crash on Safari if the editor is hidden, and\n // there was no selection.\n }\n }\n if (!domSelExtended) {\n if (anchor > head) {\n let tmp = anchorDOM;\n anchorDOM = headDOM;\n headDOM = tmp;\n }\n let range = document.createRange();\n range.setEnd(headDOM.node, headDOM.offset);\n range.setStart(anchorDOM.node, anchorDOM.offset);\n domSel.removeAllRanges();\n domSel.addRange(range);\n }\n }\n ignoreMutation(mutation) {\n return !this.contentDOM && mutation.type != \"selection\";\n }\n get contentLost() {\n return this.contentDOM && this.contentDOM != this.dom && !this.dom.contains(this.contentDOM);\n }\n // Remove a subtree of the element tree that has been touched\n // by a DOM change, so that the next update will redraw it.\n markDirty(from, to) {\n for (let offset = 0, i = 0; i < this.children.length; i++) {\n let child = this.children[i], end = offset + child.size;\n if (offset == end ? from <= end && to >= offset : from < end && to > offset) {\n let startInside = offset + child.border, endInside = end - child.border;\n if (from >= startInside && to <= endInside) {\n this.dirty = from == offset || to == end ? CONTENT_DIRTY : CHILD_DIRTY;\n if (from == startInside && to == endInside &&\n (child.contentLost || child.dom.parentNode != this.contentDOM))\n child.dirty = NODE_DIRTY;\n else\n child.markDirty(from - startInside, to - startInside);\n return;\n }\n else {\n child.dirty = child.dom == child.contentDOM && child.dom.parentNode == this.contentDOM && !child.children.length\n ? CONTENT_DIRTY : NODE_DIRTY;\n }\n }\n offset = end;\n }\n this.dirty = CONTENT_DIRTY;\n }\n markParentsDirty() {\n let level = 1;\n for (let node = this.parent; node; node = node.parent, level++) {\n let dirty = level == 1 ? CONTENT_DIRTY : CHILD_DIRTY;\n if (node.dirty < dirty)\n node.dirty = dirty;\n }\n }\n get domAtom() { return false; }\n get ignoreForCoords() { return false; }\n get ignoreForSelection() { return false; }\n isText(text) { return false; }\n}\n// A widget desc represents a widget decoration, which is a DOM node\n// drawn between the document nodes.\nclass WidgetViewDesc extends ViewDesc {\n constructor(parent, widget, view, pos) {\n let self, dom = widget.type.toDOM;\n if (typeof dom == \"function\")\n dom = dom(view, () => {\n if (!self)\n return pos;\n if (self.parent)\n return self.parent.posBeforeChild(self);\n });\n if (!widget.type.spec.raw) {\n if (dom.nodeType != 1) {\n let wrap = document.createElement(\"span\");\n wrap.appendChild(dom);\n dom = wrap;\n }\n dom.contentEditable = \"false\";\n dom.classList.add(\"ProseMirror-widget\");\n }\n super(parent, [], dom, null);\n this.widget = widget;\n this.widget = widget;\n self = this;\n }\n matchesWidget(widget) {\n return this.dirty == NOT_DIRTY && widget.type.eq(this.widget.type);\n }\n parseRule() { return { ignore: true }; }\n stopEvent(event) {\n let stop = this.widget.spec.stopEvent;\n return stop ? stop(event) : false;\n }\n ignoreMutation(mutation) {\n return mutation.type != \"selection\" || this.widget.spec.ignoreSelection;\n }\n destroy() {\n this.widget.type.destroy(this.dom);\n super.destroy();\n }\n get domAtom() { return true; }\n get ignoreForSelection() { return !!this.widget.type.spec.relaxedSide; }\n get side() { return this.widget.type.side; }\n}\nclass CompositionViewDesc extends ViewDesc {\n constructor(parent, dom, textDOM, text) {\n super(parent, [], dom, null);\n this.textDOM = textDOM;\n this.text = text;\n }\n get size() { return this.text.length; }\n localPosFromDOM(dom, offset) {\n if (dom != this.textDOM)\n return this.posAtStart + (offset ? this.size : 0);\n return this.posAtStart + offset;\n }\n domFromPos(pos) {\n return { node: this.textDOM, offset: pos };\n }\n ignoreMutation(mut) {\n return mut.type === 'characterData' && mut.target.nodeValue == mut.oldValue;\n }\n}\n// A mark desc represents a mark. May have multiple children,\n// depending on how the mark is split. Note that marks are drawn using\n// a fixed nesting order, for simplicity and predictability, so in\n// some cases they will be split more often than would appear\n// necessary.\nclass MarkViewDesc extends ViewDesc {\n constructor(parent, mark, dom, contentDOM, spec) {\n super(parent, [], dom, contentDOM);\n this.mark = mark;\n this.spec = spec;\n }\n static create(parent, mark, inline, view) {\n let custom = view.nodeViews[mark.type.name];\n let spec = custom && custom(mark, view, inline);\n if (!spec || !spec.dom)\n spec = prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.DOMSerializer.renderSpec(document, mark.type.spec.toDOM(mark, inline), null, mark.attrs);\n return new MarkViewDesc(parent, mark, spec.dom, spec.contentDOM || spec.dom, spec);\n }\n parseRule() {\n if ((this.dirty & NODE_DIRTY) || this.mark.type.spec.reparseInView)\n return null;\n return { mark: this.mark.type.name, attrs: this.mark.attrs, contentElement: this.contentDOM };\n }\n matchesMark(mark) { return this.dirty != NODE_DIRTY && this.mark.eq(mark); }\n markDirty(from, to) {\n super.markDirty(from, to);\n // Move dirty info to nearest node view\n if (this.dirty != NOT_DIRTY) {\n let parent = this.parent;\n while (!parent.node)\n parent = parent.parent;\n if (parent.dirty < this.dirty)\n parent.dirty = this.dirty;\n this.dirty = NOT_DIRTY;\n }\n }\n slice(from, to, view) {\n let copy = MarkViewDesc.create(this.parent, this.mark, true, view);\n let nodes = this.children, size = this.size;\n if (to < size)\n nodes = replaceNodes(nodes, to, size, view);\n if (from > 0)\n nodes = replaceNodes(nodes, 0, from, view);\n for (let i = 0; i < nodes.length; i++)\n nodes[i].parent = copy;\n copy.children = nodes;\n return copy;\n }\n ignoreMutation(mutation) {\n return this.spec.ignoreMutation ? this.spec.ignoreMutation(mutation) : super.ignoreMutation(mutation);\n }\n destroy() {\n if (this.spec.destroy)\n this.spec.destroy();\n super.destroy();\n }\n}\n// Node view descs are the main, most common type of view desc, and\n// correspond to an actual node in the document. Unlike mark descs,\n// they populate their child array themselves.\nclass NodeViewDesc extends ViewDesc {\n constructor(parent, node, outerDeco, innerDeco, dom, contentDOM, nodeDOM, view, pos) {\n super(parent, [], dom, contentDOM);\n this.node = node;\n this.outerDeco = outerDeco;\n this.innerDeco = innerDeco;\n this.nodeDOM = nodeDOM;\n }\n // By default, a node is rendered using the `toDOM` method from the\n // node type spec. But client code can use the `nodeViews` spec to\n // supply a custom node view, which can influence various aspects of\n // the way the node works.\n //\n // (Using subclassing for this was intentionally decided against,\n // since it'd require exposing a whole slew of finicky\n // implementation details to the user code that they probably will\n // never need.)\n static create(parent, node, outerDeco, innerDeco, view, pos) {\n let custom = view.nodeViews[node.type.name], descObj;\n let spec = custom && custom(node, view, () => {\n // (This is a function that allows the custom view to find its\n // own position)\n if (!descObj)\n return pos;\n if (descObj.parent)\n return descObj.parent.posBeforeChild(descObj);\n }, outerDeco, innerDeco);\n let dom = spec && spec.dom, contentDOM = spec && spec.contentDOM;\n if (node.isText) {\n if (!dom)\n dom = document.createTextNode(node.text);\n else if (dom.nodeType != 3)\n throw new RangeError(\"Text must be rendered as a DOM text node\");\n }\n else if (!dom) {\n let spec = prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.DOMSerializer.renderSpec(document, node.type.spec.toDOM(node), null, node.attrs);\n ({ dom, contentDOM } = spec);\n }\n if (!contentDOM && !node.isText && dom.nodeName != \"BR\") { // Chrome gets confused by \n if (!dom.hasAttribute(\"contenteditable\"))\n dom.contentEditable = \"false\";\n if (node.type.spec.draggable)\n dom.draggable = true;\n }\n let nodeDOM = dom;\n dom = applyOuterDeco(dom, outerDeco, node);\n if (spec)\n return descObj = new CustomNodeViewDesc(parent, node, outerDeco, innerDeco, dom, contentDOM || null, nodeDOM, spec, view, pos + 1);\n else if (node.isText)\n return new TextViewDesc(parent, node, outerDeco, innerDeco, dom, nodeDOM, view);\n else\n return new NodeViewDesc(parent, node, outerDeco, innerDeco, dom, contentDOM || null, nodeDOM, view, pos + 1);\n }\n parseRule() {\n // Experimental kludge to allow opt-in re-parsing of nodes\n if (this.node.type.spec.reparseInView)\n return null;\n // FIXME the assumption that this can always return the current\n // attrs means that if the user somehow manages to change the\n // attrs in the dom, that won't be picked up. Not entirely sure\n // whether this is a problem\n let rule = { node: this.node.type.name, attrs: this.node.attrs };\n if (this.node.type.whitespace == \"pre\")\n rule.preserveWhitespace = \"full\";\n if (!this.contentDOM) {\n rule.getContent = () => this.node.content;\n }\n else if (!this.contentLost) {\n rule.contentElement = this.contentDOM;\n }\n else {\n // Chrome likes to randomly recreate parent nodes when\n // backspacing things. When that happens, this tries to find the\n // new parent.\n for (let i = this.children.length - 1; i >= 0; i--) {\n let child = this.children[i];\n if (this.dom.contains(child.dom.parentNode)) {\n rule.contentElement = child.dom.parentNode;\n break;\n }\n }\n if (!rule.contentElement)\n rule.getContent = () => prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.empty;\n }\n return rule;\n }\n matchesNode(node, outerDeco, innerDeco) {\n return this.dirty == NOT_DIRTY && node.eq(this.node) &&\n sameOuterDeco(outerDeco, this.outerDeco) && innerDeco.eq(this.innerDeco);\n }\n get size() { return this.node.nodeSize; }\n get border() { return this.node.isLeaf ? 0 : 1; }\n // Syncs `this.children` to match `this.node.content` and the local\n // decorations, possibly introducing nesting for marks. Then, in a\n // separate step, syncs the DOM inside `this.contentDOM` to\n // `this.children`.\n updateChildren(view, pos) {\n let inline = this.node.inlineContent, off = pos;\n let composition = view.composing ? this.localCompositionInfo(view, pos) : null;\n let localComposition = composition && composition.pos > -1 ? composition : null;\n let compositionInChild = composition && composition.pos < 0;\n let updater = new ViewTreeUpdater(this, localComposition && localComposition.node, view);\n iterDeco(this.node, this.innerDeco, (widget, i, insideNode) => {\n if (widget.spec.marks)\n updater.syncToMarks(widget.spec.marks, inline, view, i);\n else if (widget.type.side >= 0 && !insideNode)\n updater.syncToMarks(i == this.node.childCount ? prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Mark.none : this.node.child(i).marks, inline, view, i);\n // If the next node is a desc matching this widget, reuse it,\n // otherwise insert the widget as a new view desc.\n updater.placeWidget(widget, view, off);\n }, (child, outerDeco, innerDeco, i) => {\n // Make sure the wrapping mark descs match the node's marks.\n updater.syncToMarks(child.marks, inline, view, i);\n // Try several strategies for drawing this node\n let compIndex;\n if (updater.findNodeMatch(child, outerDeco, innerDeco, i)) ;\n else if (compositionInChild && view.state.selection.from > off &&\n view.state.selection.to < off + child.nodeSize &&\n (compIndex = updater.findIndexWithChild(composition.node)) > -1 &&\n updater.updateNodeAt(child, outerDeco, innerDeco, compIndex, view)) ;\n else if (updater.updateNextNode(child, outerDeco, innerDeco, view, i, off)) ;\n else {\n // Add it as a new view\n updater.addNode(child, outerDeco, innerDeco, view, off);\n }\n off += child.nodeSize;\n });\n // Drop all remaining descs after the current position.\n updater.syncToMarks([], inline, view, 0);\n if (this.node.isTextblock)\n updater.addTextblockHacks();\n updater.destroyRest();\n // Sync the DOM if anything changed\n if (updater.changed || this.dirty == CONTENT_DIRTY) {\n // May have to protect focused DOM from being changed if a composition is active\n if (localComposition)\n this.protectLocalComposition(view, localComposition);\n renderDescs(this.contentDOM, this.children, view);\n if (ios)\n iosHacks(this.dom);\n }\n }\n localCompositionInfo(view, pos) {\n // Only do something if both the selection and a focused text node\n // are inside of this node\n let { from, to } = view.state.selection;\n if (!(view.state.selection instanceof prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.TextSelection) || from < pos || to > pos + this.node.content.size)\n return null;\n let textNode = view.input.compositionNode;\n if (!textNode || !this.dom.contains(textNode.parentNode))\n return null;\n if (this.node.inlineContent) {\n // Find the text in the focused node in the node, stop if it's not\n // there (may have been modified through other means, in which\n // case it should overwritten)\n let text = textNode.nodeValue;\n let textPos = findTextInFragment(this.node.content, text, from - pos, to - pos);\n return textPos < 0 ? null : { node: textNode, pos: textPos, text };\n }\n else {\n return { node: textNode, pos: -1, text: \"\" };\n }\n }\n protectLocalComposition(view, { node, pos, text }) {\n // The node is already part of a local view desc, leave it there\n if (this.getDesc(node))\n return;\n // Create a composition view for the orphaned nodes\n let topNode = node;\n for (;; topNode = topNode.parentNode) {\n if (topNode.parentNode == this.contentDOM)\n break;\n while (topNode.previousSibling)\n topNode.parentNode.removeChild(topNode.previousSibling);\n while (topNode.nextSibling)\n topNode.parentNode.removeChild(topNode.nextSibling);\n if (topNode.pmViewDesc)\n topNode.pmViewDesc = undefined;\n }\n let desc = new CompositionViewDesc(this, topNode, node, text);\n view.input.compositionNodes.push(desc);\n // Patch up this.children to contain the composition view\n this.children = replaceNodes(this.children, pos, pos + text.length, view, desc);\n }\n // If this desc must be updated to match the given node decoration,\n // do so and return true.\n update(node, outerDeco, innerDeco, view) {\n if (this.dirty == NODE_DIRTY ||\n !node.sameMarkup(this.node))\n return false;\n this.updateInner(node, outerDeco, innerDeco, view);\n return true;\n }\n updateInner(node, outerDeco, innerDeco, view) {\n this.updateOuterDeco(outerDeco);\n this.node = node;\n this.innerDeco = innerDeco;\n if (this.contentDOM)\n this.updateChildren(view, this.posAtStart);\n this.dirty = NOT_DIRTY;\n }\n updateOuterDeco(outerDeco) {\n if (sameOuterDeco(outerDeco, this.outerDeco))\n return;\n let needsWrap = this.nodeDOM.nodeType != 1;\n let oldDOM = this.dom;\n this.dom = patchOuterDeco(this.dom, this.nodeDOM, computeOuterDeco(this.outerDeco, this.node, needsWrap), computeOuterDeco(outerDeco, this.node, needsWrap));\n if (this.dom != oldDOM) {\n oldDOM.pmViewDesc = undefined;\n this.dom.pmViewDesc = this;\n }\n this.outerDeco = outerDeco;\n }\n // Mark this node as being the selected node.\n selectNode() {\n if (this.nodeDOM.nodeType == 1) {\n this.nodeDOM.classList.add(\"ProseMirror-selectednode\");\n if (this.contentDOM || !this.node.type.spec.draggable)\n this.nodeDOM.draggable = true;\n }\n }\n // Remove selected node marking from this node.\n deselectNode() {\n if (this.nodeDOM.nodeType == 1) {\n this.nodeDOM.classList.remove(\"ProseMirror-selectednode\");\n if (this.contentDOM || !this.node.type.spec.draggable)\n this.nodeDOM.removeAttribute(\"draggable\");\n }\n }\n get domAtom() { return this.node.isAtom; }\n}\n// Create a view desc for the top-level document node, to be exported\n// and used by the view class.\nfunction docViewDesc(doc, outerDeco, innerDeco, dom, view) {\n applyOuterDeco(dom, outerDeco, doc);\n let docView = new NodeViewDesc(undefined, doc, outerDeco, innerDeco, dom, dom, dom, view, 0);\n if (docView.contentDOM)\n docView.updateChildren(view, 0);\n return docView;\n}\nclass TextViewDesc extends NodeViewDesc {\n constructor(parent, node, outerDeco, innerDeco, dom, nodeDOM, view) {\n super(parent, node, outerDeco, innerDeco, dom, null, nodeDOM, view, 0);\n }\n parseRule() {\n let skip = this.nodeDOM.parentNode;\n while (skip && skip != this.dom && !skip.pmIsDeco)\n skip = skip.parentNode;\n return { skip: (skip || true) };\n }\n update(node, outerDeco, innerDeco, view) {\n if (this.dirty == NODE_DIRTY || (this.dirty != NOT_DIRTY && !this.inParent()) ||\n !node.sameMarkup(this.node))\n return false;\n this.updateOuterDeco(outerDeco);\n if ((this.dirty != NOT_DIRTY || node.text != this.node.text) && node.text != this.nodeDOM.nodeValue) {\n this.nodeDOM.nodeValue = node.text;\n if (view.trackWrites == this.nodeDOM)\n view.trackWrites = null;\n }\n this.node = node;\n this.dirty = NOT_DIRTY;\n return true;\n }\n inParent() {\n let parentDOM = this.parent.contentDOM;\n for (let n = this.nodeDOM; n; n = n.parentNode)\n if (n == parentDOM)\n return true;\n return false;\n }\n domFromPos(pos) {\n return { node: this.nodeDOM, offset: pos };\n }\n localPosFromDOM(dom, offset, bias) {\n if (dom == this.nodeDOM)\n return this.posAtStart + Math.min(offset, this.node.text.length);\n return super.localPosFromDOM(dom, offset, bias);\n }\n ignoreMutation(mutation) {\n return mutation.type != \"characterData\" && mutation.type != \"selection\";\n }\n slice(from, to, view) {\n let node = this.node.cut(from, to), dom = document.createTextNode(node.text);\n return new TextViewDesc(this.parent, node, this.outerDeco, this.innerDeco, dom, dom, view);\n }\n markDirty(from, to) {\n super.markDirty(from, to);\n if (this.dom != this.nodeDOM && (from == 0 || to == this.nodeDOM.nodeValue.length))\n this.dirty = NODE_DIRTY;\n }\n get domAtom() { return false; }\n isText(text) { return this.node.text == text; }\n}\n// A dummy desc used to tag trailing BR or IMG nodes created to work\n// around contentEditable terribleness.\nclass TrailingHackViewDesc extends ViewDesc {\n parseRule() { return { ignore: true }; }\n matchesHack(nodeName) { return this.dirty == NOT_DIRTY && this.dom.nodeName == nodeName; }\n get domAtom() { return true; }\n get ignoreForCoords() { return this.dom.nodeName == \"IMG\"; }\n}\n// A separate subclass is used for customized node views, so that the\n// extra checks only have to be made for nodes that are actually\n// customized.\nclass CustomNodeViewDesc extends NodeViewDesc {\n constructor(parent, node, outerDeco, innerDeco, dom, contentDOM, nodeDOM, spec, view, pos) {\n super(parent, node, outerDeco, innerDeco, dom, contentDOM, nodeDOM, view, pos);\n this.spec = spec;\n }\n // A custom `update` method gets to decide whether the update goes\n // through. If it does, and there's a `contentDOM` node, our logic\n // updates the children.\n update(node, outerDeco, innerDeco, view) {\n if (this.dirty == NODE_DIRTY)\n return false;\n if (this.spec.update && (this.node.type == node.type || this.spec.multiType)) {\n let result = this.spec.update(node, outerDeco, innerDeco);\n if (result)\n this.updateInner(node, outerDeco, innerDeco, view);\n return result;\n }\n else if (!this.contentDOM && !node.isLeaf) {\n return false;\n }\n else {\n return super.update(node, outerDeco, innerDeco, view);\n }\n }\n selectNode() {\n this.spec.selectNode ? this.spec.selectNode() : super.selectNode();\n }\n deselectNode() {\n this.spec.deselectNode ? this.spec.deselectNode() : super.deselectNode();\n }\n setSelection(anchor, head, view, force) {\n this.spec.setSelection ? this.spec.setSelection(anchor, head, view.root)\n : super.setSelection(anchor, head, view, force);\n }\n destroy() {\n if (this.spec.destroy)\n this.spec.destroy();\n super.destroy();\n }\n stopEvent(event) {\n return this.spec.stopEvent ? this.spec.stopEvent(event) : false;\n }\n ignoreMutation(mutation) {\n return this.spec.ignoreMutation ? this.spec.ignoreMutation(mutation) : super.ignoreMutation(mutation);\n }\n}\n// Sync the content of the given DOM node with the nodes associated\n// with the given array of view descs, recursing into mark descs\n// because this should sync the subtree for a whole node at a time.\nfunction renderDescs(parentDOM, descs, view) {\n let dom = parentDOM.firstChild, written = false;\n for (let i = 0; i < descs.length; i++) {\n let desc = descs[i], childDOM = desc.dom;\n if (childDOM.parentNode == parentDOM) {\n while (childDOM != dom) {\n dom = rm(dom);\n written = true;\n }\n dom = dom.nextSibling;\n }\n else {\n written = true;\n parentDOM.insertBefore(childDOM, dom);\n }\n if (desc instanceof MarkViewDesc) {\n let pos = dom ? dom.previousSibling : parentDOM.lastChild;\n renderDescs(desc.contentDOM, desc.children, view);\n dom = pos ? pos.nextSibling : parentDOM.firstChild;\n }\n }\n while (dom) {\n dom = rm(dom);\n written = true;\n }\n if (written && view.trackWrites == parentDOM)\n view.trackWrites = null;\n}\nconst OuterDecoLevel = function (nodeName) {\n if (nodeName)\n this.nodeName = nodeName;\n};\nOuterDecoLevel.prototype = Object.create(null);\nconst noDeco = [new OuterDecoLevel];\nfunction computeOuterDeco(outerDeco, node, needsWrap) {\n if (outerDeco.length == 0)\n return noDeco;\n let top = needsWrap ? noDeco[0] : new OuterDecoLevel, result = [top];\n for (let i = 0; i < outerDeco.length; i++) {\n let attrs = outerDeco[i].type.attrs;\n if (!attrs)\n continue;\n if (attrs.nodeName)\n result.push(top = new OuterDecoLevel(attrs.nodeName));\n for (let name in attrs) {\n let val = attrs[name];\n if (val == null)\n continue;\n if (needsWrap && result.length == 1)\n result.push(top = new OuterDecoLevel(node.isInline ? \"span\" : \"div\"));\n if (name == \"class\")\n top.class = (top.class ? top.class + \" \" : \"\") + val;\n else if (name == \"style\")\n top.style = (top.style ? top.style + \";\" : \"\") + val;\n else if (name != \"nodeName\")\n top[name] = val;\n }\n }\n return result;\n}\nfunction patchOuterDeco(outerDOM, nodeDOM, prevComputed, curComputed) {\n // Shortcut for trivial case\n if (prevComputed == noDeco && curComputed == noDeco)\n return nodeDOM;\n let curDOM = nodeDOM;\n for (let i = 0; i < curComputed.length; i++) {\n let deco = curComputed[i], prev = prevComputed[i];\n if (i) {\n let parent;\n if (prev && prev.nodeName == deco.nodeName && curDOM != outerDOM &&\n (parent = curDOM.parentNode) && parent.nodeName.toLowerCase() == deco.nodeName) {\n curDOM = parent;\n }\n else {\n parent = document.createElement(deco.nodeName);\n parent.pmIsDeco = true;\n parent.appendChild(curDOM);\n prev = noDeco[0];\n curDOM = parent;\n }\n }\n patchAttributes(curDOM, prev || noDeco[0], deco);\n }\n return curDOM;\n}\nfunction patchAttributes(dom, prev, cur) {\n for (let name in prev)\n if (name != \"class\" && name != \"style\" && name != \"nodeName\" && !(name in cur))\n dom.removeAttribute(name);\n for (let name in cur)\n if (name != \"class\" && name != \"style\" && name != \"nodeName\" && cur[name] != prev[name])\n dom.setAttribute(name, cur[name]);\n if (prev.class != cur.class) {\n let prevList = prev.class ? prev.class.split(\" \").filter(Boolean) : [];\n let curList = cur.class ? cur.class.split(\" \").filter(Boolean) : [];\n for (let i = 0; i < prevList.length; i++)\n if (curList.indexOf(prevList[i]) == -1)\n dom.classList.remove(prevList[i]);\n for (let i = 0; i < curList.length; i++)\n if (prevList.indexOf(curList[i]) == -1)\n dom.classList.add(curList[i]);\n if (dom.classList.length == 0)\n dom.removeAttribute(\"class\");\n }\n if (prev.style != cur.style) {\n if (prev.style) {\n let prop = /\\s*([\\w\\-\\xa1-\\uffff]+)\\s*:(?:\"(?:\\\\.|[^\"])*\"|'(?:\\\\.|[^'])*'|\\(.*?\\)|[^;])*/g, m;\n while (m = prop.exec(prev.style))\n dom.style.removeProperty(m[1]);\n }\n if (cur.style)\n dom.style.cssText += cur.style;\n }\n}\nfunction applyOuterDeco(dom, deco, node) {\n return patchOuterDeco(dom, dom, noDeco, computeOuterDeco(deco, node, dom.nodeType != 1));\n}\nfunction sameOuterDeco(a, b) {\n if (a.length != b.length)\n return false;\n for (let i = 0; i < a.length; i++)\n if (!a[i].type.eq(b[i].type))\n return false;\n return true;\n}\n// Remove a DOM node and return its next sibling.\nfunction rm(dom) {\n let next = dom.nextSibling;\n dom.parentNode.removeChild(dom);\n return next;\n}\n// Helper class for incrementally updating a tree of mark descs and\n// the widget and node descs inside of them.\nclass ViewTreeUpdater {\n constructor(top, lock, view) {\n this.lock = lock;\n this.view = view;\n // Index into `this.top`'s child array, represents the current\n // update position.\n this.index = 0;\n // When entering a mark, the current top and index are pushed\n // onto this.\n this.stack = [];\n // Tracks whether anything was changed\n this.changed = false;\n this.top = top;\n this.preMatch = preMatch(top.node.content, top);\n }\n // Destroy and remove the children between the given indices in\n // `this.top`.\n destroyBetween(start, end) {\n if (start == end)\n return;\n for (let i = start; i < end; i++)\n this.top.children[i].destroy();\n this.top.children.splice(start, end - start);\n this.changed = true;\n }\n // Destroy all remaining children in `this.top`.\n destroyRest() {\n this.destroyBetween(this.index, this.top.children.length);\n }\n // Sync the current stack of mark descs with the given array of\n // marks, reusing existing mark descs when possible.\n syncToMarks(marks, inline, view, parentIndex) {\n let keep = 0, depth = this.stack.length >> 1;\n let maxKeep = Math.min(depth, marks.length);\n while (keep < maxKeep &&\n (keep == depth - 1 ? this.top : this.stack[(keep + 1) << 1])\n .matchesMark(marks[keep]) && marks[keep].type.spec.spanning !== false)\n keep++;\n while (keep < depth) {\n this.destroyRest();\n this.top.dirty = NOT_DIRTY;\n this.index = this.stack.pop();\n this.top = this.stack.pop();\n depth--;\n }\n while (depth < marks.length) {\n this.stack.push(this.top, this.index + 1);\n let found = -1, scanTo = this.top.children.length;\n if (parentIndex < this.preMatch.index)\n scanTo = Math.min(this.index + 3, scanTo);\n for (let i = this.index; i < scanTo; i++) {\n let next = this.top.children[i];\n if (next.matchesMark(marks[depth]) && !this.isLocked(next.dom)) {\n found = i;\n break;\n }\n }\n if (found > -1) {\n if (found > this.index) {\n this.changed = true;\n this.destroyBetween(this.index, found);\n }\n this.top = this.top.children[this.index];\n }\n else {\n let markDesc = MarkViewDesc.create(this.top, marks[depth], inline, view);\n this.top.children.splice(this.index, 0, markDesc);\n this.top = markDesc;\n this.changed = true;\n }\n this.index = 0;\n depth++;\n }\n }\n // Try to find a node desc matching the given data. Skip over it and\n // return true when successful.\n findNodeMatch(node, outerDeco, innerDeco, index) {\n let found = -1, targetDesc;\n if (index >= this.preMatch.index &&\n (targetDesc = this.preMatch.matches[index - this.preMatch.index]).parent == this.top &&\n targetDesc.matchesNode(node, outerDeco, innerDeco)) {\n found = this.top.children.indexOf(targetDesc, this.index);\n }\n else {\n for (let i = this.index, e = Math.min(this.top.children.length, i + 5); i < e; i++) {\n let child = this.top.children[i];\n if (child.matchesNode(node, outerDeco, innerDeco) && !this.preMatch.matched.has(child)) {\n found = i;\n break;\n }\n }\n }\n if (found < 0)\n return false;\n this.destroyBetween(this.index, found);\n this.index++;\n return true;\n }\n updateNodeAt(node, outerDeco, innerDeco, index, view) {\n let child = this.top.children[index];\n if (child.dirty == NODE_DIRTY && child.dom == child.contentDOM)\n child.dirty = CONTENT_DIRTY;\n if (!child.update(node, outerDeco, innerDeco, view))\n return false;\n this.destroyBetween(this.index, index);\n this.index++;\n return true;\n }\n findIndexWithChild(domNode) {\n for (;;) {\n let parent = domNode.parentNode;\n if (!parent)\n return -1;\n if (parent == this.top.contentDOM) {\n let desc = domNode.pmViewDesc;\n if (desc)\n for (let i = this.index; i < this.top.children.length; i++) {\n if (this.top.children[i] == desc)\n return i;\n }\n return -1;\n }\n domNode = parent;\n }\n }\n // Try to update the next node, if any, to the given data. Checks\n // pre-matches to avoid overwriting nodes that could still be used.\n updateNextNode(node, outerDeco, innerDeco, view, index, pos) {\n for (let i = this.index; i < this.top.children.length; i++) {\n let next = this.top.children[i];\n if (next instanceof NodeViewDesc) {\n let preMatch = this.preMatch.matched.get(next);\n if (preMatch != null && preMatch != index)\n return false;\n let nextDOM = next.dom, updated;\n // Can't update if nextDOM is or contains this.lock, except if\n // it's a text node whose content already matches the new text\n // and whose decorations match the new ones.\n let locked = this.isLocked(nextDOM) &&\n !(node.isText && next.node && next.node.isText && next.nodeDOM.nodeValue == node.text &&\n next.dirty != NODE_DIRTY && sameOuterDeco(outerDeco, next.outerDeco));\n if (!locked && next.update(node, outerDeco, innerDeco, view)) {\n this.destroyBetween(this.index, i);\n if (next.dom != nextDOM)\n this.changed = true;\n this.index++;\n return true;\n }\n else if (!locked && (updated = this.recreateWrapper(next, node, outerDeco, innerDeco, view, pos))) {\n this.destroyBetween(this.index, i);\n this.top.children[this.index] = updated;\n if (updated.contentDOM) {\n updated.dirty = CONTENT_DIRTY;\n updated.updateChildren(view, pos + 1);\n updated.dirty = NOT_DIRTY;\n }\n this.changed = true;\n this.index++;\n return true;\n }\n break;\n }\n }\n return false;\n }\n // When a node with content is replaced by a different node with\n // identical content, move over its children.\n recreateWrapper(next, node, outerDeco, innerDeco, view, pos) {\n if (next.dirty || node.isAtom || !next.children.length ||\n !next.node.content.eq(node.content) ||\n !sameOuterDeco(outerDeco, next.outerDeco) || !innerDeco.eq(next.innerDeco))\n return null;\n let wrapper = NodeViewDesc.create(this.top, node, outerDeco, innerDeco, view, pos);\n if (wrapper.contentDOM) {\n wrapper.children = next.children;\n next.children = [];\n for (let ch of wrapper.children)\n ch.parent = wrapper;\n }\n next.destroy();\n return wrapper;\n }\n // Insert the node as a newly created node desc.\n addNode(node, outerDeco, innerDeco, view, pos) {\n let desc = NodeViewDesc.create(this.top, node, outerDeco, innerDeco, view, pos);\n if (desc.contentDOM)\n desc.updateChildren(view, pos + 1);\n this.top.children.splice(this.index++, 0, desc);\n this.changed = true;\n }\n placeWidget(widget, view, pos) {\n let next = this.index < this.top.children.length ? this.top.children[this.index] : null;\n if (next && next.matchesWidget(widget) &&\n (widget == next.widget || !next.widget.type.toDOM.parentNode)) {\n this.index++;\n }\n else {\n let desc = new WidgetViewDesc(this.top, widget, view, pos);\n this.top.children.splice(this.index++, 0, desc);\n this.changed = true;\n }\n }\n // Make sure a textblock looks and behaves correctly in\n // contentEditable.\n addTextblockHacks() {\n let lastChild = this.top.children[this.index - 1], parent = this.top;\n while (lastChild instanceof MarkViewDesc) {\n parent = lastChild;\n lastChild = parent.children[parent.children.length - 1];\n }\n if (!lastChild || // Empty textblock\n !(lastChild instanceof TextViewDesc) ||\n /\\n$/.test(lastChild.node.text) ||\n (this.view.requiresGeckoHackNode && /\\s$/.test(lastChild.node.text))) {\n // Avoid bugs in Safari's cursor drawing (#1165) and Chrome's mouse selection (#1152)\n if ((safari || chrome) && lastChild && lastChild.dom.contentEditable == \"false\")\n this.addHackNode(\"IMG\", parent);\n this.addHackNode(\"BR\", this.top);\n }\n }\n addHackNode(nodeName, parent) {\n if (parent == this.top && this.index < parent.children.length && parent.children[this.index].matchesHack(nodeName)) {\n this.index++;\n }\n else {\n let dom = document.createElement(nodeName);\n if (nodeName == \"IMG\") {\n dom.className = \"ProseMirror-separator\";\n dom.alt = \"\";\n }\n if (nodeName == \"BR\")\n dom.className = \"ProseMirror-trailingBreak\";\n let hack = new TrailingHackViewDesc(this.top, [], dom, null);\n if (parent != this.top)\n parent.children.push(hack);\n else\n parent.children.splice(this.index++, 0, hack);\n this.changed = true;\n }\n }\n isLocked(node) {\n return this.lock && (node == this.lock || node.nodeType == 1 && node.contains(this.lock.parentNode));\n }\n}\n// Iterate from the end of the fragment and array of descs to find\n// directly matching ones, in order to avoid overeagerly reusing those\n// for other nodes.\nfunction preMatch(frag, parentDesc) {\n let curDesc = parentDesc, descI = curDesc.children.length;\n let fI = frag.childCount, matched = new Map, matches = [];\n outer: while (fI > 0) {\n let desc;\n for (;;) {\n if (descI) {\n let next = curDesc.children[descI - 1];\n if (next instanceof MarkViewDesc) {\n curDesc = next;\n descI = next.children.length;\n }\n else {\n desc = next;\n descI--;\n break;\n }\n }\n else if (curDesc == parentDesc) {\n break outer;\n }\n else {\n descI = curDesc.parent.children.indexOf(curDesc);\n curDesc = curDesc.parent;\n }\n }\n let node = desc.node;\n if (!node)\n continue;\n if (node != frag.child(fI - 1))\n break;\n --fI;\n matched.set(desc, fI);\n matches.push(desc);\n }\n return { index: fI, matched, matches: matches.reverse() };\n}\nfunction compareSide(a, b) {\n return a.type.side - b.type.side;\n}\n// This function abstracts iterating over the nodes and decorations in\n// a fragment. Calls `onNode` for each node, with its local and child\n// decorations. Splits text nodes when there is a decoration starting\n// or ending inside of them. Calls `onWidget` for each widget.\nfunction iterDeco(parent, deco, onWidget, onNode) {\n let locals = deco.locals(parent), offset = 0;\n // Simple, cheap variant for when there are no local decorations\n if (locals.length == 0) {\n for (let i = 0; i < parent.childCount; i++) {\n let child = parent.child(i);\n onNode(child, locals, deco.forChild(offset, child), i);\n offset += child.nodeSize;\n }\n return;\n }\n let decoIndex = 0, active = [], restNode = null;\n for (let parentIndex = 0;;) {\n let widget, widgets;\n while (decoIndex < locals.length && locals[decoIndex].to == offset) {\n let next = locals[decoIndex++];\n if (next.widget) {\n if (!widget)\n widget = next;\n else\n (widgets || (widgets = [widget])).push(next);\n }\n }\n if (widget) {\n if (widgets) {\n widgets.sort(compareSide);\n for (let i = 0; i < widgets.length; i++)\n onWidget(widgets[i], parentIndex, !!restNode);\n }\n else {\n onWidget(widget, parentIndex, !!restNode);\n }\n }\n let child, index;\n if (restNode) {\n index = -1;\n child = restNode;\n restNode = null;\n }\n else if (parentIndex < parent.childCount) {\n index = parentIndex;\n child = parent.child(parentIndex++);\n }\n else {\n break;\n }\n for (let i = 0; i < active.length; i++)\n if (active[i].to <= offset)\n active.splice(i--, 1);\n while (decoIndex < locals.length && locals[decoIndex].from <= offset && locals[decoIndex].to > offset)\n active.push(locals[decoIndex++]);\n let end = offset + child.nodeSize;\n if (child.isText) {\n let cutAt = end;\n if (decoIndex < locals.length && locals[decoIndex].from < cutAt)\n cutAt = locals[decoIndex].from;\n for (let i = 0; i < active.length; i++)\n if (active[i].to < cutAt)\n cutAt = active[i].to;\n if (cutAt < end) {\n restNode = child.cut(cutAt - offset);\n child = child.cut(0, cutAt - offset);\n end = cutAt;\n index = -1;\n }\n }\n else {\n while (decoIndex < locals.length && locals[decoIndex].to < end)\n decoIndex++;\n }\n let outerDeco = child.isInline && !child.isLeaf ? active.filter(d => !d.inline) : active.slice();\n onNode(child, outerDeco, deco.forChild(offset, child), index);\n offset = end;\n }\n}\n// List markers in Mobile Safari will mysteriously disappear\n// sometimes. This works around that.\nfunction iosHacks(dom) {\n if (dom.nodeName == \"UL\" || dom.nodeName == \"OL\") {\n let oldCSS = dom.style.cssText;\n dom.style.cssText = oldCSS + \"; list-style: square !important\";\n window.getComputedStyle(dom).listStyle;\n dom.style.cssText = oldCSS;\n }\n}\n// Find a piece of text in an inline fragment, overlapping from-to\nfunction findTextInFragment(frag, text, from, to) {\n for (let i = 0, pos = 0; i < frag.childCount && pos <= to;) {\n let child = frag.child(i++), childStart = pos;\n pos += child.nodeSize;\n if (!child.isText)\n continue;\n let str = child.text;\n while (i < frag.childCount) {\n let next = frag.child(i++);\n pos += next.nodeSize;\n if (!next.isText)\n break;\n str += next.text;\n }\n if (pos >= from) {\n if (pos >= to && str.slice(to - text.length - childStart, to - childStart) == text)\n return to - text.length;\n let found = childStart < to ? str.lastIndexOf(text, to - childStart - 1) : -1;\n if (found >= 0 && found + text.length + childStart >= from)\n return childStart + found;\n if (from == to && str.length >= (to + text.length) - childStart &&\n str.slice(to - childStart, to - childStart + text.length) == text)\n return to;\n }\n }\n return -1;\n}\n// Replace range from-to in an array of view descs with replacement\n// (may be null to just delete). This goes very much against the grain\n// of the rest of this code, which tends to create nodes with the\n// right shape in one go, rather than messing with them after\n// creation, but is necessary in the composition hack.\nfunction replaceNodes(nodes, from, to, view, replacement) {\n let result = [];\n for (let i = 0, off = 0; i < nodes.length; i++) {\n let child = nodes[i], start = off, end = off += child.size;\n if (start >= to || end <= from) {\n result.push(child);\n }\n else {\n if (start < from)\n result.push(child.slice(0, from - start, view));\n if (replacement) {\n result.push(replacement);\n replacement = undefined;\n }\n if (end > to)\n result.push(child.slice(to - start, child.size, view));\n }\n }\n return result;\n}\n\nfunction selectionFromDOM(view, origin = null) {\n let domSel = view.domSelectionRange(), doc = view.state.doc;\n if (!domSel.focusNode)\n return null;\n let nearestDesc = view.docView.nearestDesc(domSel.focusNode), inWidget = nearestDesc && nearestDesc.size == 0;\n let head = view.docView.posFromDOM(domSel.focusNode, domSel.focusOffset, 1);\n if (head < 0)\n return null;\n let $head = doc.resolve(head), anchor, selection;\n if (selectionCollapsed(domSel)) {\n anchor = head;\n while (nearestDesc && !nearestDesc.node)\n nearestDesc = nearestDesc.parent;\n let nearestDescNode = nearestDesc.node;\n if (nearestDesc && nearestDescNode.isAtom && prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.NodeSelection.isSelectable(nearestDescNode) && nearestDesc.parent\n && !(nearestDescNode.isInline && isOnEdge(domSel.focusNode, domSel.focusOffset, nearestDesc.dom))) {\n let pos = nearestDesc.posBefore;\n selection = new prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.NodeSelection(head == pos ? $head : doc.resolve(pos));\n }\n }\n else {\n if (domSel instanceof view.dom.ownerDocument.defaultView.Selection && domSel.rangeCount > 1) {\n let min = head, max = head;\n for (let i = 0; i < domSel.rangeCount; i++) {\n let range = domSel.getRangeAt(i);\n min = Math.min(min, view.docView.posFromDOM(range.startContainer, range.startOffset, 1));\n max = Math.max(max, view.docView.posFromDOM(range.endContainer, range.endOffset, -1));\n }\n if (min < 0)\n return null;\n [anchor, head] = max == view.state.selection.anchor ? [max, min] : [min, max];\n $head = doc.resolve(head);\n }\n else {\n anchor = view.docView.posFromDOM(domSel.anchorNode, domSel.anchorOffset, 1);\n }\n if (anchor < 0)\n return null;\n }\n let $anchor = doc.resolve(anchor);\n if (!selection) {\n let bias = origin == \"pointer\" || (view.state.selection.head < $head.pos && !inWidget) ? 1 : -1;\n selection = selectionBetween(view, $anchor, $head, bias);\n }\n return selection;\n}\nfunction editorOwnsSelection(view) {\n return view.editable ? view.hasFocus() :\n hasSelection(view) && document.activeElement && document.activeElement.contains(view.dom);\n}\nfunction selectionToDOM(view, force = false) {\n let sel = view.state.selection;\n syncNodeSelection(view, sel);\n if (!editorOwnsSelection(view))\n return;\n // The delayed drag selection causes issues with Cell Selections\n // in Safari. And the drag selection delay is to workarond issues\n // which only present in Chrome.\n if (!force && view.input.mouseDown && view.input.mouseDown.allowDefault && chrome) {\n let domSel = view.domSelectionRange(), curSel = view.domObserver.currentSelection;\n if (domSel.anchorNode && curSel.anchorNode &&\n isEquivalentPosition(domSel.anchorNode, domSel.anchorOffset, curSel.anchorNode, curSel.anchorOffset)) {\n view.input.mouseDown.delayedSelectionSync = true;\n view.domObserver.setCurSelection();\n return;\n }\n }\n view.domObserver.disconnectSelection();\n if (view.cursorWrapper) {\n selectCursorWrapper(view);\n }\n else {\n let { anchor, head } = sel, resetEditableFrom, resetEditableTo;\n if (brokenSelectBetweenUneditable && !(sel instanceof prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.TextSelection)) {\n if (!sel.$from.parent.inlineContent)\n resetEditableFrom = temporarilyEditableNear(view, sel.from);\n if (!sel.empty && !sel.$from.parent.inlineContent)\n resetEditableTo = temporarilyEditableNear(view, sel.to);\n }\n view.docView.setSelection(anchor, head, view, force);\n if (brokenSelectBetweenUneditable) {\n if (resetEditableFrom)\n resetEditable(resetEditableFrom);\n if (resetEditableTo)\n resetEditable(resetEditableTo);\n }\n if (sel.visible) {\n view.dom.classList.remove(\"ProseMirror-hideselection\");\n }\n else {\n view.dom.classList.add(\"ProseMirror-hideselection\");\n if (\"onselectionchange\" in document)\n removeClassOnSelectionChange(view);\n }\n }\n view.domObserver.setCurSelection();\n view.domObserver.connectSelection();\n}\n// Kludge to work around Webkit not allowing a selection to start/end\n// between non-editable block nodes. We briefly make something\n// editable, set the selection, then set it uneditable again.\nconst brokenSelectBetweenUneditable = safari || chrome && chrome_version < 63;\nfunction temporarilyEditableNear(view, pos) {\n let { node, offset } = view.docView.domFromPos(pos, 0);\n let after = offset < node.childNodes.length ? node.childNodes[offset] : null;\n let before = offset ? node.childNodes[offset - 1] : null;\n if (safari && after && after.contentEditable == \"false\")\n return setEditable(after);\n if ((!after || after.contentEditable == \"false\") &&\n (!before || before.contentEditable == \"false\")) {\n if (after)\n return setEditable(after);\n else if (before)\n return setEditable(before);\n }\n}\nfunction setEditable(element) {\n element.contentEditable = \"true\";\n if (safari && element.draggable) {\n element.draggable = false;\n element.wasDraggable = true;\n }\n return element;\n}\nfunction resetEditable(element) {\n element.contentEditable = \"false\";\n if (element.wasDraggable) {\n element.draggable = true;\n element.wasDraggable = null;\n }\n}\nfunction removeClassOnSelectionChange(view) {\n let doc = view.dom.ownerDocument;\n doc.removeEventListener(\"selectionchange\", view.input.hideSelectionGuard);\n let domSel = view.domSelectionRange();\n let node = domSel.anchorNode, offset = domSel.anchorOffset;\n doc.addEventListener(\"selectionchange\", view.input.hideSelectionGuard = () => {\n if (domSel.anchorNode != node || domSel.anchorOffset != offset) {\n doc.removeEventListener(\"selectionchange\", view.input.hideSelectionGuard);\n setTimeout(() => {\n if (!editorOwnsSelection(view) || view.state.selection.visible)\n view.dom.classList.remove(\"ProseMirror-hideselection\");\n }, 20);\n }\n });\n}\nfunction selectCursorWrapper(view) {\n let domSel = view.domSelection();\n if (!domSel)\n return;\n let node = view.cursorWrapper.dom, img = node.nodeName == \"IMG\";\n if (img)\n domSel.collapse(node.parentNode, domIndex(node) + 1);\n else\n domSel.collapse(node, 0);\n // Kludge to kill 'control selection' in IE11 when selecting an\n // invisible cursor wrapper, since that would result in those weird\n // resize handles and a selection that considers the absolutely\n // positioned wrapper, rather than the root editable node, the\n // focused element.\n if (!img && !view.state.selection.visible && ie && ie_version <= 11) {\n node.disabled = true;\n node.disabled = false;\n }\n}\nfunction syncNodeSelection(view, sel) {\n if (sel instanceof prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.NodeSelection) {\n let desc = view.docView.descAt(sel.from);\n if (desc != view.lastSelectedViewDesc) {\n clearNodeSelection(view);\n if (desc)\n desc.selectNode();\n view.lastSelectedViewDesc = desc;\n }\n }\n else {\n clearNodeSelection(view);\n }\n}\n// Clear all DOM statefulness of the last node selection.\nfunction clearNodeSelection(view) {\n if (view.lastSelectedViewDesc) {\n if (view.lastSelectedViewDesc.parent)\n view.lastSelectedViewDesc.deselectNode();\n view.lastSelectedViewDesc = undefined;\n }\n}\nfunction selectionBetween(view, $anchor, $head, bias) {\n return view.someProp(\"createSelectionBetween\", f => f(view, $anchor, $head))\n || prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.TextSelection.between($anchor, $head, bias);\n}\nfunction hasFocusAndSelection(view) {\n if (view.editable && !view.hasFocus())\n return false;\n return hasSelection(view);\n}\nfunction hasSelection(view) {\n let sel = view.domSelectionRange();\n if (!sel.anchorNode)\n return false;\n try {\n // Firefox will raise 'permission denied' errors when accessing\n // properties of `sel.anchorNode` when it's in a generated CSS\n // element.\n return view.dom.contains(sel.anchorNode.nodeType == 3 ? sel.anchorNode.parentNode : sel.anchorNode) &&\n (view.editable || view.dom.contains(sel.focusNode.nodeType == 3 ? sel.focusNode.parentNode : sel.focusNode));\n }\n catch (_) {\n return false;\n }\n}\nfunction anchorInRightPlace(view) {\n let anchorDOM = view.docView.domFromPos(view.state.selection.anchor, 0);\n let domSel = view.domSelectionRange();\n return isEquivalentPosition(anchorDOM.node, anchorDOM.offset, domSel.anchorNode, domSel.anchorOffset);\n}\n\nfunction moveSelectionBlock(state, dir) {\n let { $anchor, $head } = state.selection;\n let $side = dir > 0 ? $anchor.max($head) : $anchor.min($head);\n let $start = !$side.parent.inlineContent ? $side : $side.depth ? state.doc.resolve(dir > 0 ? $side.after() : $side.before()) : null;\n return $start && prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.Selection.findFrom($start, dir);\n}\nfunction apply(view, sel) {\n view.dispatch(view.state.tr.setSelection(sel).scrollIntoView());\n return true;\n}\nfunction selectHorizontally(view, dir, mods) {\n let sel = view.state.selection;\n if (sel instanceof prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.TextSelection) {\n if (mods.indexOf(\"s\") > -1) {\n let { $head } = sel, node = $head.textOffset ? null : dir < 0 ? $head.nodeBefore : $head.nodeAfter;\n if (!node || node.isText || !node.isLeaf)\n return false;\n let $newHead = view.state.doc.resolve($head.pos + node.nodeSize * (dir < 0 ? -1 : 1));\n return apply(view, new prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.TextSelection(sel.$anchor, $newHead));\n }\n else if (!sel.empty) {\n return false;\n }\n else if (view.endOfTextblock(dir > 0 ? \"forward\" : \"backward\")) {\n let next = moveSelectionBlock(view.state, dir);\n if (next && (next instanceof prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.NodeSelection))\n return apply(view, next);\n return false;\n }\n else if (!(mac && mods.indexOf(\"m\") > -1)) {\n let $head = sel.$head, node = $head.textOffset ? null : dir < 0 ? $head.nodeBefore : $head.nodeAfter, desc;\n if (!node || node.isText)\n return false;\n let nodePos = dir < 0 ? $head.pos - node.nodeSize : $head.pos;\n if (!(node.isAtom || (desc = view.docView.descAt(nodePos)) && !desc.contentDOM))\n return false;\n if (prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.NodeSelection.isSelectable(node)) {\n return apply(view, new prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.NodeSelection(dir < 0 ? view.state.doc.resolve($head.pos - node.nodeSize) : $head));\n }\n else if (webkit) {\n // Chrome and Safari will introduce extra pointless cursor\n // positions around inline uneditable nodes, so we have to\n // take over and move the cursor past them (#937)\n return apply(view, new prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.TextSelection(view.state.doc.resolve(dir < 0 ? nodePos : nodePos + node.nodeSize)));\n }\n else {\n return false;\n }\n }\n }\n else if (sel instanceof prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.NodeSelection && sel.node.isInline) {\n return apply(view, new prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.TextSelection(dir > 0 ? sel.$to : sel.$from));\n }\n else {\n let next = moveSelectionBlock(view.state, dir);\n if (next)\n return apply(view, next);\n return false;\n }\n}\nfunction nodeLen(node) {\n return node.nodeType == 3 ? node.nodeValue.length : node.childNodes.length;\n}\nfunction isIgnorable(dom, dir) {\n let desc = dom.pmViewDesc;\n return desc && desc.size == 0 && (dir < 0 || dom.nextSibling || dom.nodeName != \"BR\");\n}\nfunction skipIgnoredNodes(view, dir) {\n return dir < 0 ? skipIgnoredNodesBefore(view) : skipIgnoredNodesAfter(view);\n}\n// Make sure the cursor isn't directly after one or more ignored\n// nodes, which will confuse the browser's cursor motion logic.\nfunction skipIgnoredNodesBefore(view) {\n let sel = view.domSelectionRange();\n let node = sel.focusNode, offset = sel.focusOffset;\n if (!node)\n return;\n let moveNode, moveOffset, force = false;\n // Gecko will do odd things when the selection is directly in front\n // of a non-editable node, so in that case, move it into the next\n // node if possible. Issue prosemirror/prosemirror#832.\n if (gecko && node.nodeType == 1 && offset < nodeLen(node) && isIgnorable(node.childNodes[offset], -1))\n force = true;\n for (;;) {\n if (offset > 0) {\n if (node.nodeType != 1) {\n break;\n }\n else {\n let before = node.childNodes[offset - 1];\n if (isIgnorable(before, -1)) {\n moveNode = node;\n moveOffset = --offset;\n }\n else if (before.nodeType == 3) {\n node = before;\n offset = node.nodeValue.length;\n }\n else\n break;\n }\n }\n else if (isBlockNode(node)) {\n break;\n }\n else {\n let prev = node.previousSibling;\n while (prev && isIgnorable(prev, -1)) {\n moveNode = node.parentNode;\n moveOffset = domIndex(prev);\n prev = prev.previousSibling;\n }\n if (!prev) {\n node = node.parentNode;\n if (node == view.dom)\n break;\n offset = 0;\n }\n else {\n node = prev;\n offset = nodeLen(node);\n }\n }\n }\n if (force)\n setSelFocus(view, node, offset);\n else if (moveNode)\n setSelFocus(view, moveNode, moveOffset);\n}\n// Make sure the cursor isn't directly before one or more ignored\n// nodes.\nfunction skipIgnoredNodesAfter(view) {\n let sel = view.domSelectionRange();\n let node = sel.focusNode, offset = sel.focusOffset;\n if (!node)\n return;\n let len = nodeLen(node);\n let moveNode, moveOffset;\n for (;;) {\n if (offset < len) {\n if (node.nodeType != 1)\n break;\n let after = node.childNodes[offset];\n if (isIgnorable(after, 1)) {\n moveNode = node;\n moveOffset = ++offset;\n }\n else\n break;\n }\n else if (isBlockNode(node)) {\n break;\n }\n else {\n let next = node.nextSibling;\n while (next && isIgnorable(next, 1)) {\n moveNode = next.parentNode;\n moveOffset = domIndex(next) + 1;\n next = next.nextSibling;\n }\n if (!next) {\n node = node.parentNode;\n if (node == view.dom)\n break;\n offset = len = 0;\n }\n else {\n node = next;\n offset = 0;\n len = nodeLen(node);\n }\n }\n }\n if (moveNode)\n setSelFocus(view, moveNode, moveOffset);\n}\nfunction isBlockNode(dom) {\n let desc = dom.pmViewDesc;\n return desc && desc.node && desc.node.isBlock;\n}\nfunction textNodeAfter(node, offset) {\n while (node && offset == node.childNodes.length && !hasBlockDesc(node)) {\n offset = domIndex(node) + 1;\n node = node.parentNode;\n }\n while (node && offset < node.childNodes.length) {\n let next = node.childNodes[offset];\n if (next.nodeType == 3)\n return next;\n if (next.nodeType == 1 && next.contentEditable == \"false\")\n break;\n node = next;\n offset = 0;\n }\n}\nfunction textNodeBefore(node, offset) {\n while (node && !offset && !hasBlockDesc(node)) {\n offset = domIndex(node);\n node = node.parentNode;\n }\n while (node && offset) {\n let next = node.childNodes[offset - 1];\n if (next.nodeType == 3)\n return next;\n if (next.nodeType == 1 && next.contentEditable == \"false\")\n break;\n node = next;\n offset = node.childNodes.length;\n }\n}\nfunction setSelFocus(view, node, offset) {\n if (node.nodeType != 3) {\n let before, after;\n if (after = textNodeAfter(node, offset)) {\n node = after;\n offset = 0;\n }\n else if (before = textNodeBefore(node, offset)) {\n node = before;\n offset = before.nodeValue.length;\n }\n }\n let sel = view.domSelection();\n if (!sel)\n return;\n if (selectionCollapsed(sel)) {\n let range = document.createRange();\n range.setEnd(node, offset);\n range.setStart(node, offset);\n sel.removeAllRanges();\n sel.addRange(range);\n }\n else if (sel.extend) {\n sel.extend(node, offset);\n }\n view.domObserver.setCurSelection();\n let { state } = view;\n // If no state update ends up happening, reset the selection.\n setTimeout(() => {\n if (view.state == state)\n selectionToDOM(view);\n }, 50);\n}\nfunction findDirection(view, pos) {\n let $pos = view.state.doc.resolve(pos);\n if (!(chrome || windows) && $pos.parent.inlineContent) {\n let coords = view.coordsAtPos(pos);\n if (pos > $pos.start()) {\n let before = view.coordsAtPos(pos - 1);\n let mid = (before.top + before.bottom) / 2;\n if (mid > coords.top && mid < coords.bottom && Math.abs(before.left - coords.left) > 1)\n return before.left < coords.left ? \"ltr\" : \"rtl\";\n }\n if (pos < $pos.end()) {\n let after = view.coordsAtPos(pos + 1);\n let mid = (after.top + after.bottom) / 2;\n if (mid > coords.top && mid < coords.bottom && Math.abs(after.left - coords.left) > 1)\n return after.left > coords.left ? \"ltr\" : \"rtl\";\n }\n }\n let computed = getComputedStyle(view.dom).direction;\n return computed == \"rtl\" ? \"rtl\" : \"ltr\";\n}\n// Check whether vertical selection motion would involve node\n// selections. If so, apply it (if not, the result is left to the\n// browser)\nfunction selectVertically(view, dir, mods) {\n let sel = view.state.selection;\n if (sel instanceof prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.TextSelection && !sel.empty || mods.indexOf(\"s\") > -1)\n return false;\n if (mac && mods.indexOf(\"m\") > -1)\n return false;\n let { $from, $to } = sel;\n if (!$from.parent.inlineContent || view.endOfTextblock(dir < 0 ? \"up\" : \"down\")) {\n let next = moveSelectionBlock(view.state, dir);\n if (next && (next instanceof prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.NodeSelection))\n return apply(view, next);\n }\n if (!$from.parent.inlineContent) {\n let side = dir < 0 ? $from : $to;\n let beyond = sel instanceof prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.AllSelection ? prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.Selection.near(side, dir) : prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.Selection.findFrom(side, dir);\n return beyond ? apply(view, beyond) : false;\n }\n return false;\n}\nfunction stopNativeHorizontalDelete(view, dir) {\n if (!(view.state.selection instanceof prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.TextSelection))\n return true;\n let { $head, $anchor, empty } = view.state.selection;\n if (!$head.sameParent($anchor))\n return true;\n if (!empty)\n return false;\n if (view.endOfTextblock(dir > 0 ? \"forward\" : \"backward\"))\n return true;\n let nextNode = !$head.textOffset && (dir < 0 ? $head.nodeBefore : $head.nodeAfter);\n if (nextNode && !nextNode.isText) {\n let tr = view.state.tr;\n if (dir < 0)\n tr.delete($head.pos - nextNode.nodeSize, $head.pos);\n else\n tr.delete($head.pos, $head.pos + nextNode.nodeSize);\n view.dispatch(tr);\n return true;\n }\n return false;\n}\nfunction switchEditable(view, node, state) {\n view.domObserver.stop();\n node.contentEditable = state;\n view.domObserver.start();\n}\n// Issue #867 / #1090 / https://bugs.chromium.org/p/chromium/issues/detail?id=903821\n// In which Safari (and at some point in the past, Chrome) does really\n// wrong things when the down arrow is pressed when the cursor is\n// directly at the start of a textblock and has an uneditable node\n// after it\nfunction safariDownArrowBug(view) {\n if (!safari || view.state.selection.$head.parentOffset > 0)\n return false;\n let { focusNode, focusOffset } = view.domSelectionRange();\n if (focusNode && focusNode.nodeType == 1 && focusOffset == 0 &&\n focusNode.firstChild && focusNode.firstChild.contentEditable == \"false\") {\n let child = focusNode.firstChild;\n switchEditable(view, child, \"true\");\n setTimeout(() => switchEditable(view, child, \"false\"), 20);\n }\n return false;\n}\n// A backdrop key mapping used to make sure we always suppress keys\n// that have a dangerous default effect, even if the commands they are\n// bound to return false, and to make sure that cursor-motion keys\n// find a cursor (as opposed to a node selection) when pressed. For\n// cursor-motion keys, the code in the handlers also takes care of\n// block selections.\nfunction getMods(event) {\n let result = \"\";\n if (event.ctrlKey)\n result += \"c\";\n if (event.metaKey)\n result += \"m\";\n if (event.altKey)\n result += \"a\";\n if (event.shiftKey)\n result += \"s\";\n return result;\n}\nfunction captureKeyDown(view, event) {\n let code = event.keyCode, mods = getMods(event);\n if (code == 8 || (mac && code == 72 && mods == \"c\")) { // Backspace, Ctrl-h on Mac\n return stopNativeHorizontalDelete(view, -1) || skipIgnoredNodes(view, -1);\n }\n else if ((code == 46 && !event.shiftKey) || (mac && code == 68 && mods == \"c\")) { // Delete, Ctrl-d on Mac\n return stopNativeHorizontalDelete(view, 1) || skipIgnoredNodes(view, 1);\n }\n else if (code == 13 || code == 27) { // Enter, Esc\n return true;\n }\n else if (code == 37 || (mac && code == 66 && mods == \"c\")) { // Left arrow, Ctrl-b on Mac\n let dir = code == 37 ? (findDirection(view, view.state.selection.from) == \"ltr\" ? -1 : 1) : -1;\n return selectHorizontally(view, dir, mods) || skipIgnoredNodes(view, dir);\n }\n else if (code == 39 || (mac && code == 70 && mods == \"c\")) { // Right arrow, Ctrl-f on Mac\n let dir = code == 39 ? (findDirection(view, view.state.selection.from) == \"ltr\" ? 1 : -1) : 1;\n return selectHorizontally(view, dir, mods) || skipIgnoredNodes(view, dir);\n }\n else if (code == 38 || (mac && code == 80 && mods == \"c\")) { // Up arrow, Ctrl-p on Mac\n return selectVertically(view, -1, mods) || skipIgnoredNodes(view, -1);\n }\n else if (code == 40 || (mac && code == 78 && mods == \"c\")) { // Down arrow, Ctrl-n on Mac\n return safariDownArrowBug(view) || selectVertically(view, 1, mods) || skipIgnoredNodes(view, 1);\n }\n else if (mods == (mac ? \"m\" : \"c\") &&\n (code == 66 || code == 73 || code == 89 || code == 90)) { // Mod-[biyz]\n return true;\n }\n return false;\n}\n\nfunction serializeForClipboard(view, slice) {\n view.someProp(\"transformCopied\", f => { slice = f(slice, view); });\n let context = [], { content, openStart, openEnd } = slice;\n while (openStart > 1 && openEnd > 1 && content.childCount == 1 && content.firstChild.childCount == 1) {\n openStart--;\n openEnd--;\n let node = content.firstChild;\n context.push(node.type.name, node.attrs != node.type.defaultAttrs ? node.attrs : null);\n content = node.content;\n }\n let serializer = view.someProp(\"clipboardSerializer\") || prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.DOMSerializer.fromSchema(view.state.schema);\n let doc = detachedDoc(), wrap = doc.createElement(\"div\");\n wrap.appendChild(serializer.serializeFragment(content, { document: doc }));\n let firstChild = wrap.firstChild, needsWrap, wrappers = 0;\n while (firstChild && firstChild.nodeType == 1 && (needsWrap = wrapMap[firstChild.nodeName.toLowerCase()])) {\n for (let i = needsWrap.length - 1; i >= 0; i--) {\n let wrapper = doc.createElement(needsWrap[i]);\n while (wrap.firstChild)\n wrapper.appendChild(wrap.firstChild);\n wrap.appendChild(wrapper);\n wrappers++;\n }\n firstChild = wrap.firstChild;\n }\n if (firstChild && firstChild.nodeType == 1)\n firstChild.setAttribute(\"data-pm-slice\", `${openStart} ${openEnd}${wrappers ? ` -${wrappers}` : \"\"} ${JSON.stringify(context)}`);\n let text = view.someProp(\"clipboardTextSerializer\", f => f(slice, view)) ||\n slice.content.textBetween(0, slice.content.size, \"\\n\\n\");\n return { dom: wrap, text, slice };\n}\n// Read a slice of content from the clipboard (or drop data).\nfunction parseFromClipboard(view, text, html, plainText, $context) {\n let inCode = $context.parent.type.spec.code;\n let dom, slice;\n if (!html && !text)\n return null;\n let asText = !!text && (plainText || inCode || !html);\n if (asText) {\n view.someProp(\"transformPastedText\", f => { text = f(text, inCode || plainText, view); });\n if (inCode) {\n slice = new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(view.state.schema.text(text.replace(/\\r\\n?/g, \"\\n\"))), 0, 0);\n view.someProp(\"transformPasted\", f => { slice = f(slice, view, true); });\n return slice;\n }\n let parsed = view.someProp(\"clipboardTextParser\", f => f(text, $context, plainText, view));\n if (parsed) {\n slice = parsed;\n }\n else {\n let marks = $context.marks();\n let { schema } = view.state, serializer = prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.DOMSerializer.fromSchema(schema);\n dom = document.createElement(\"div\");\n text.split(/(?:\\r\\n?|\\n)+/).forEach(block => {\n let p = dom.appendChild(document.createElement(\"p\"));\n if (block)\n p.appendChild(serializer.serializeNode(schema.text(block, marks)));\n });\n }\n }\n else {\n view.someProp(\"transformPastedHTML\", f => { html = f(html, view); });\n dom = readHTML(html);\n if (webkit)\n restoreReplacedSpaces(dom);\n }\n let contextNode = dom && dom.querySelector(\"[data-pm-slice]\");\n let sliceData = contextNode && /^(\\d+) (\\d+)(?: -(\\d+))? (.*)/.exec(contextNode.getAttribute(\"data-pm-slice\") || \"\");\n if (sliceData && sliceData[3])\n for (let i = +sliceData[3]; i > 0; i--) {\n let child = dom.firstChild;\n while (child && child.nodeType != 1)\n child = child.nextSibling;\n if (!child)\n break;\n dom = child;\n }\n if (!slice) {\n let parser = view.someProp(\"clipboardParser\") || view.someProp(\"domParser\") || prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.DOMParser.fromSchema(view.state.schema);\n slice = parser.parseSlice(dom, {\n preserveWhitespace: !!(asText || sliceData),\n context: $context,\n ruleFromNode(dom) {\n if (dom.nodeName == \"BR\" && !dom.nextSibling &&\n dom.parentNode && !inlineParents.test(dom.parentNode.nodeName))\n return { ignore: true };\n return null;\n }\n });\n }\n if (sliceData) {\n slice = addContext(closeSlice(slice, +sliceData[1], +sliceData[2]), sliceData[4]);\n }\n else { // HTML wasn't created by ProseMirror. Make sure top-level siblings are coherent\n slice = prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice.maxOpen(normalizeSiblings(slice.content, $context), true);\n if (slice.openStart || slice.openEnd) {\n let openStart = 0, openEnd = 0;\n for (let node = slice.content.firstChild; openStart < slice.openStart && !node.type.spec.isolating; openStart++, node = node.firstChild) { }\n for (let node = slice.content.lastChild; openEnd < slice.openEnd && !node.type.spec.isolating; openEnd++, node = node.lastChild) { }\n slice = closeSlice(slice, openStart, openEnd);\n }\n }\n view.someProp(\"transformPasted\", f => { slice = f(slice, view, asText); });\n return slice;\n}\nconst inlineParents = /^(a|abbr|acronym|b|cite|code|del|em|i|ins|kbd|label|output|q|ruby|s|samp|span|strong|sub|sup|time|u|tt|var)$/i;\n// Takes a slice parsed with parseSlice, which means there hasn't been\n// any content-expression checking done on the top nodes, tries to\n// find a parent node in the current context that might fit the nodes,\n// and if successful, rebuilds the slice so that it fits into that parent.\n//\n// This addresses the problem that Transform.replace expects a\n// coherent slice, and will fail to place a set of siblings that don't\n// fit anywhere in the schema.\nfunction normalizeSiblings(fragment, $context) {\n if (fragment.childCount < 2)\n return fragment;\n for (let d = $context.depth; d >= 0; d--) {\n let parent = $context.node(d);\n let match = parent.contentMatchAt($context.index(d));\n let lastWrap, result = [];\n fragment.forEach(node => {\n if (!result)\n return;\n let wrap = match.findWrapping(node.type), inLast;\n if (!wrap)\n return result = null;\n if (inLast = result.length && lastWrap.length && addToSibling(wrap, lastWrap, node, result[result.length - 1], 0)) {\n result[result.length - 1] = inLast;\n }\n else {\n if (result.length)\n result[result.length - 1] = closeRight(result[result.length - 1], lastWrap.length);\n let wrapped = withWrappers(node, wrap);\n result.push(wrapped);\n match = match.matchType(wrapped.type);\n lastWrap = wrap;\n }\n });\n if (result)\n return prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(result);\n }\n return fragment;\n}\nfunction withWrappers(node, wrap, from = 0) {\n for (let i = wrap.length - 1; i >= from; i--)\n node = wrap[i].create(null, prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(node));\n return node;\n}\n// Used to group adjacent nodes wrapped in similar parents by\n// normalizeSiblings into the same parent node\nfunction addToSibling(wrap, lastWrap, node, sibling, depth) {\n if (depth < wrap.length && depth < lastWrap.length && wrap[depth] == lastWrap[depth]) {\n let inner = addToSibling(wrap, lastWrap, node, sibling.lastChild, depth + 1);\n if (inner)\n return sibling.copy(sibling.content.replaceChild(sibling.childCount - 1, inner));\n let match = sibling.contentMatchAt(sibling.childCount);\n if (match.matchType(depth == wrap.length - 1 ? node.type : wrap[depth + 1]))\n return sibling.copy(sibling.content.append(prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(withWrappers(node, wrap, depth + 1))));\n }\n}\nfunction closeRight(node, depth) {\n if (depth == 0)\n return node;\n let fragment = node.content.replaceChild(node.childCount - 1, closeRight(node.lastChild, depth - 1));\n let fill = node.contentMatchAt(node.childCount).fillBefore(prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.empty, true);\n return node.copy(fragment.append(fill));\n}\nfunction closeRange(fragment, side, from, to, depth, openEnd) {\n let node = side < 0 ? fragment.firstChild : fragment.lastChild, inner = node.content;\n if (fragment.childCount > 1)\n openEnd = 0;\n if (depth < to - 1)\n inner = closeRange(inner, side, from, to, depth + 1, openEnd);\n if (depth >= from)\n inner = side < 0 ? node.contentMatchAt(0).fillBefore(inner, openEnd <= depth).append(inner)\n : inner.append(node.contentMatchAt(node.childCount).fillBefore(prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.empty, true));\n return fragment.replaceChild(side < 0 ? 0 : fragment.childCount - 1, node.copy(inner));\n}\nfunction closeSlice(slice, openStart, openEnd) {\n if (openStart < slice.openStart)\n slice = new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(closeRange(slice.content, -1, openStart, slice.openStart, 0, slice.openEnd), openStart, slice.openEnd);\n if (openEnd < slice.openEnd)\n slice = new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(closeRange(slice.content, 1, openEnd, slice.openEnd, 0, 0), slice.openStart, openEnd);\n return slice;\n}\n// Trick from jQuery -- some elements must be wrapped in other\n// elements for innerHTML to work. I.e. if you do `div.innerHTML =\n// \"
..
\"` the table cells are ignored.\nconst wrapMap = {\n thead: [\"table\"],\n tbody: [\"table\"],\n tfoot: [\"table\"],\n caption: [\"table\"],\n colgroup: [\"table\"],\n col: [\"table\", \"colgroup\"],\n tr: [\"table\", \"tbody\"],\n td: [\"table\", \"tbody\", \"tr\"],\n th: [\"table\", \"tbody\", \"tr\"]\n};\nlet _detachedDoc = null;\nfunction detachedDoc() {\n return _detachedDoc || (_detachedDoc = document.implementation.createHTMLDocument(\"title\"));\n}\nlet _policy = null;\nfunction maybeWrapTrusted(html) {\n let trustedTypes = window.trustedTypes;\n if (!trustedTypes)\n return html;\n // With the require-trusted-types-for CSP, Chrome will block\n // innerHTML, even on a detached document. This wraps the string in\n // a way that makes the browser allow us to use its parser again.\n if (!_policy)\n _policy = trustedTypes.defaultPolicy || trustedTypes.createPolicy(\"ProseMirrorClipboard\", { createHTML: (s) => s });\n return _policy.createHTML(html);\n}\nfunction readHTML(html) {\n let metas = /^(\\s*]*>)*/.exec(html);\n if (metas)\n html = html.slice(metas[0].length);\n let elt = detachedDoc().createElement(\"div\");\n let firstTag = /<([a-z][^>\\s]+)/i.exec(html), wrap;\n if (wrap = firstTag && wrapMap[firstTag[1].toLowerCase()])\n html = wrap.map(n => \"<\" + n + \">\").join(\"\") + html + wrap.map(n => \"\").reverse().join(\"\");\n elt.innerHTML = maybeWrapTrusted(html);\n if (wrap)\n for (let i = 0; i < wrap.length; i++)\n elt = elt.querySelector(wrap[i]) || elt;\n return elt;\n}\n// Webkit browsers do some hard-to-predict replacement of regular\n// spaces with non-breaking spaces when putting content on the\n// clipboard. This tries to convert such non-breaking spaces (which\n// will be wrapped in a plain span on Chrome, a span with class\n// Apple-converted-space on Safari) back to regular spaces.\nfunction restoreReplacedSpaces(dom) {\n let nodes = dom.querySelectorAll(chrome ? \"span:not([class]):not([style])\" : \"span.Apple-converted-space\");\n for (let i = 0; i < nodes.length; i++) {\n let node = nodes[i];\n if (node.childNodes.length == 1 && node.textContent == \"\\u00a0\" && node.parentNode)\n node.parentNode.replaceChild(dom.ownerDocument.createTextNode(\" \"), node);\n }\n}\nfunction addContext(slice, context) {\n if (!slice.size)\n return slice;\n let schema = slice.content.firstChild.type.schema, array;\n try {\n array = JSON.parse(context);\n }\n catch (e) {\n return slice;\n }\n let { content, openStart, openEnd } = slice;\n for (let i = array.length - 2; i >= 0; i -= 2) {\n let type = schema.nodes[array[i]];\n if (!type || type.hasRequiredAttrs())\n break;\n content = prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(type.create(array[i + 1], content));\n openStart++;\n openEnd++;\n }\n return new prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice(content, openStart, openEnd);\n}\n\n// A collection of DOM events that occur within the editor, and callback functions\n// to invoke when the event fires.\nconst handlers = {};\nconst editHandlers = {};\nconst passiveHandlers = { touchstart: true, touchmove: true };\nclass InputState {\n constructor() {\n this.shiftKey = false;\n this.mouseDown = null;\n this.lastKeyCode = null;\n this.lastKeyCodeTime = 0;\n this.lastClick = { time: 0, x: 0, y: 0, type: \"\", button: 0 };\n this.lastSelectionOrigin = null;\n this.lastSelectionTime = 0;\n this.lastIOSEnter = 0;\n this.lastIOSEnterFallbackTimeout = -1;\n this.lastFocus = 0;\n this.lastTouch = 0;\n this.lastChromeDelete = 0;\n this.composing = false;\n this.compositionNode = null;\n this.composingTimeout = -1;\n this.compositionNodes = [];\n this.compositionEndedAt = -2e8;\n this.compositionID = 1;\n this.badSafariComposition = false;\n // Set to a composition ID when there are pending changes at compositionend\n this.compositionPendingChanges = 0;\n this.domChangeCount = 0;\n this.eventHandlers = Object.create(null);\n this.hideSelectionGuard = null;\n }\n}\nfunction initInput(view) {\n for (let event in handlers) {\n let handler = handlers[event];\n view.dom.addEventListener(event, view.input.eventHandlers[event] = (event) => {\n if (eventBelongsToView(view, event) && !runCustomHandler(view, event) &&\n (view.editable || !(event.type in editHandlers)))\n handler(view, event);\n }, passiveHandlers[event] ? { passive: true } : undefined);\n }\n // On Safari, for reasons beyond my understanding, adding an input\n // event handler makes an issue where the composition vanishes when\n // you press enter go away.\n if (safari)\n view.dom.addEventListener(\"input\", () => null);\n ensureListeners(view);\n}\nfunction setSelectionOrigin(view, origin) {\n view.input.lastSelectionOrigin = origin;\n view.input.lastSelectionTime = Date.now();\n}\nfunction destroyInput(view) {\n view.domObserver.stop();\n for (let type in view.input.eventHandlers)\n view.dom.removeEventListener(type, view.input.eventHandlers[type]);\n clearTimeout(view.input.composingTimeout);\n clearTimeout(view.input.lastIOSEnterFallbackTimeout);\n}\nfunction ensureListeners(view) {\n view.someProp(\"handleDOMEvents\", currentHandlers => {\n for (let type in currentHandlers)\n if (!view.input.eventHandlers[type])\n view.dom.addEventListener(type, view.input.eventHandlers[type] = event => runCustomHandler(view, event));\n });\n}\nfunction runCustomHandler(view, event) {\n return view.someProp(\"handleDOMEvents\", handlers => {\n let handler = handlers[event.type];\n return handler ? handler(view, event) || event.defaultPrevented : false;\n });\n}\nfunction eventBelongsToView(view, event) {\n if (!event.bubbles)\n return true;\n if (event.defaultPrevented)\n return false;\n for (let node = event.target; node != view.dom; node = node.parentNode)\n if (!node || node.nodeType == 11 ||\n (node.pmViewDesc && node.pmViewDesc.stopEvent(event)))\n return false;\n return true;\n}\nfunction dispatchEvent(view, event) {\n if (!runCustomHandler(view, event) && handlers[event.type] &&\n (view.editable || !(event.type in editHandlers)))\n handlers[event.type](view, event);\n}\neditHandlers.keydown = (view, _event) => {\n let event = _event;\n view.input.shiftKey = event.keyCode == 16 || event.shiftKey;\n if (inOrNearComposition(view, event))\n return;\n view.input.lastKeyCode = event.keyCode;\n view.input.lastKeyCodeTime = Date.now();\n // Suppress enter key events on Chrome Android, because those tend\n // to be part of a confused sequence of composition events fired,\n // and handling them eagerly tends to corrupt the input.\n if (android && chrome && event.keyCode == 13)\n return;\n if (event.keyCode != 229)\n view.domObserver.forceFlush();\n // On iOS, if we preventDefault enter key presses, the virtual\n // keyboard gets confused. So the hack here is to set a flag that\n // makes the DOM change code recognize that what just happens should\n // be replaced by whatever the Enter key handlers do.\n if (ios && event.keyCode == 13 && !event.ctrlKey && !event.altKey && !event.metaKey) {\n let now = Date.now();\n view.input.lastIOSEnter = now;\n view.input.lastIOSEnterFallbackTimeout = setTimeout(() => {\n if (view.input.lastIOSEnter == now) {\n view.someProp(\"handleKeyDown\", f => f(view, keyEvent(13, \"Enter\")));\n view.input.lastIOSEnter = 0;\n }\n }, 200);\n }\n else if (view.someProp(\"handleKeyDown\", f => f(view, event)) || captureKeyDown(view, event)) {\n event.preventDefault();\n }\n else {\n setSelectionOrigin(view, \"key\");\n }\n};\neditHandlers.keyup = (view, event) => {\n if (event.keyCode == 16)\n view.input.shiftKey = false;\n};\neditHandlers.keypress = (view, _event) => {\n let event = _event;\n if (inOrNearComposition(view, event) || !event.charCode ||\n event.ctrlKey && !event.altKey || mac && event.metaKey)\n return;\n if (view.someProp(\"handleKeyPress\", f => f(view, event))) {\n event.preventDefault();\n return;\n }\n let sel = view.state.selection;\n if (!(sel instanceof prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.TextSelection) || !sel.$from.sameParent(sel.$to)) {\n let text = String.fromCharCode(event.charCode);\n let deflt = () => view.state.tr.insertText(text).scrollIntoView();\n if (!/[\\r\\n]/.test(text) && !view.someProp(\"handleTextInput\", f => f(view, sel.$from.pos, sel.$to.pos, text, deflt)))\n view.dispatch(deflt());\n event.preventDefault();\n }\n};\nfunction eventCoords(event) { return { left: event.clientX, top: event.clientY }; }\nfunction isNear(event, click) {\n let dx = click.x - event.clientX, dy = click.y - event.clientY;\n return dx * dx + dy * dy < 100;\n}\nfunction runHandlerOnContext(view, propName, pos, inside, event) {\n if (inside == -1)\n return false;\n let $pos = view.state.doc.resolve(inside);\n for (let i = $pos.depth + 1; i > 0; i--) {\n if (view.someProp(propName, f => i > $pos.depth ? f(view, pos, $pos.nodeAfter, $pos.before(i), event, true)\n : f(view, pos, $pos.node(i), $pos.before(i), event, false)))\n return true;\n }\n return false;\n}\nfunction updateSelection(view, selection, origin) {\n if (!view.focused)\n view.focus();\n if (view.state.selection.eq(selection))\n return;\n let tr = view.state.tr.setSelection(selection);\n if (origin == \"pointer\")\n tr.setMeta(\"pointer\", true);\n view.dispatch(tr);\n}\nfunction selectClickedLeaf(view, inside) {\n if (inside == -1)\n return false;\n let $pos = view.state.doc.resolve(inside), node = $pos.nodeAfter;\n if (node && node.isAtom && prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.NodeSelection.isSelectable(node)) {\n updateSelection(view, new prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.NodeSelection($pos), \"pointer\");\n return true;\n }\n return false;\n}\nfunction selectClickedNode(view, inside) {\n if (inside == -1)\n return false;\n let sel = view.state.selection, selectedNode, selectAt;\n if (sel instanceof prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.NodeSelection)\n selectedNode = sel.node;\n let $pos = view.state.doc.resolve(inside);\n for (let i = $pos.depth + 1; i > 0; i--) {\n let node = i > $pos.depth ? $pos.nodeAfter : $pos.node(i);\n if (prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.NodeSelection.isSelectable(node)) {\n if (selectedNode && sel.$from.depth > 0 &&\n i >= sel.$from.depth && $pos.before(sel.$from.depth + 1) == sel.$from.pos)\n selectAt = $pos.before(sel.$from.depth);\n else\n selectAt = $pos.before(i);\n break;\n }\n }\n if (selectAt != null) {\n updateSelection(view, prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.NodeSelection.create(view.state.doc, selectAt), \"pointer\");\n return true;\n }\n else {\n return false;\n }\n}\nfunction handleSingleClick(view, pos, inside, event, selectNode) {\n return runHandlerOnContext(view, \"handleClickOn\", pos, inside, event) ||\n view.someProp(\"handleClick\", f => f(view, pos, event)) ||\n (selectNode ? selectClickedNode(view, inside) : selectClickedLeaf(view, inside));\n}\nfunction handleDoubleClick(view, pos, inside, event) {\n return runHandlerOnContext(view, \"handleDoubleClickOn\", pos, inside, event) ||\n view.someProp(\"handleDoubleClick\", f => f(view, pos, event));\n}\nfunction handleTripleClick(view, pos, inside, event) {\n return runHandlerOnContext(view, \"handleTripleClickOn\", pos, inside, event) ||\n view.someProp(\"handleTripleClick\", f => f(view, pos, event)) ||\n defaultTripleClick(view, inside, event);\n}\nfunction defaultTripleClick(view, inside, event) {\n if (event.button != 0)\n return false;\n let doc = view.state.doc;\n if (inside == -1) {\n if (doc.inlineContent) {\n updateSelection(view, prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.TextSelection.create(doc, 0, doc.content.size), \"pointer\");\n return true;\n }\n return false;\n }\n let $pos = doc.resolve(inside);\n for (let i = $pos.depth + 1; i > 0; i--) {\n let node = i > $pos.depth ? $pos.nodeAfter : $pos.node(i);\n let nodePos = $pos.before(i);\n if (node.inlineContent)\n updateSelection(view, prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.TextSelection.create(doc, nodePos + 1, nodePos + 1 + node.content.size), \"pointer\");\n else if (prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.NodeSelection.isSelectable(node))\n updateSelection(view, prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.NodeSelection.create(doc, nodePos), \"pointer\");\n else\n continue;\n return true;\n }\n}\nfunction forceDOMFlush(view) {\n return endComposition(view);\n}\nconst selectNodeModifier = mac ? \"metaKey\" : \"ctrlKey\";\nhandlers.mousedown = (view, _event) => {\n let event = _event;\n view.input.shiftKey = event.shiftKey;\n let flushed = forceDOMFlush(view);\n let now = Date.now(), type = \"singleClick\";\n if (now - view.input.lastClick.time < 500 && isNear(event, view.input.lastClick) && !event[selectNodeModifier] &&\n view.input.lastClick.button == event.button) {\n if (view.input.lastClick.type == \"singleClick\")\n type = \"doubleClick\";\n else if (view.input.lastClick.type == \"doubleClick\")\n type = \"tripleClick\";\n }\n view.input.lastClick = { time: now, x: event.clientX, y: event.clientY, type, button: event.button };\n let pos = view.posAtCoords(eventCoords(event));\n if (!pos)\n return;\n if (type == \"singleClick\") {\n if (view.input.mouseDown)\n view.input.mouseDown.done();\n view.input.mouseDown = new MouseDown(view, pos, event, !!flushed);\n }\n else if ((type == \"doubleClick\" ? handleDoubleClick : handleTripleClick)(view, pos.pos, pos.inside, event)) {\n event.preventDefault();\n }\n else {\n setSelectionOrigin(view, \"pointer\");\n }\n};\nclass MouseDown {\n constructor(view, pos, event, flushed) {\n this.view = view;\n this.pos = pos;\n this.event = event;\n this.flushed = flushed;\n this.delayedSelectionSync = false;\n this.mightDrag = null;\n this.startDoc = view.state.doc;\n this.selectNode = !!event[selectNodeModifier];\n this.allowDefault = event.shiftKey;\n let targetNode, targetPos;\n if (pos.inside > -1) {\n targetNode = view.state.doc.nodeAt(pos.inside);\n targetPos = pos.inside;\n }\n else {\n let $pos = view.state.doc.resolve(pos.pos);\n targetNode = $pos.parent;\n targetPos = $pos.depth ? $pos.before() : 0;\n }\n const target = flushed ? null : event.target;\n const targetDesc = target ? view.docView.nearestDesc(target, true) : null;\n this.target = targetDesc && targetDesc.nodeDOM.nodeType == 1 ? targetDesc.nodeDOM : null;\n let { selection } = view.state;\n if (event.button == 0 &&\n targetNode.type.spec.draggable && targetNode.type.spec.selectable !== false ||\n selection instanceof prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.NodeSelection && selection.from <= targetPos && selection.to > targetPos)\n this.mightDrag = {\n node: targetNode,\n pos: targetPos,\n addAttr: !!(this.target && !this.target.draggable),\n setUneditable: !!(this.target && gecko && !this.target.hasAttribute(\"contentEditable\"))\n };\n if (this.target && this.mightDrag && (this.mightDrag.addAttr || this.mightDrag.setUneditable)) {\n this.view.domObserver.stop();\n if (this.mightDrag.addAttr)\n this.target.draggable = true;\n if (this.mightDrag.setUneditable)\n setTimeout(() => {\n if (this.view.input.mouseDown == this)\n this.target.setAttribute(\"contentEditable\", \"false\");\n }, 20);\n this.view.domObserver.start();\n }\n view.root.addEventListener(\"mouseup\", this.up = this.up.bind(this));\n view.root.addEventListener(\"mousemove\", this.move = this.move.bind(this));\n setSelectionOrigin(view, \"pointer\");\n }\n done() {\n this.view.root.removeEventListener(\"mouseup\", this.up);\n this.view.root.removeEventListener(\"mousemove\", this.move);\n if (this.mightDrag && this.target) {\n this.view.domObserver.stop();\n if (this.mightDrag.addAttr)\n this.target.removeAttribute(\"draggable\");\n if (this.mightDrag.setUneditable)\n this.target.removeAttribute(\"contentEditable\");\n this.view.domObserver.start();\n }\n if (this.delayedSelectionSync)\n setTimeout(() => selectionToDOM(this.view));\n this.view.input.mouseDown = null;\n }\n up(event) {\n this.done();\n if (!this.view.dom.contains(event.target))\n return;\n let pos = this.pos;\n if (this.view.state.doc != this.startDoc)\n pos = this.view.posAtCoords(eventCoords(event));\n this.updateAllowDefault(event);\n if (this.allowDefault || !pos) {\n setSelectionOrigin(this.view, \"pointer\");\n }\n else if (handleSingleClick(this.view, pos.pos, pos.inside, event, this.selectNode)) {\n event.preventDefault();\n }\n else if (event.button == 0 &&\n (this.flushed ||\n // Safari ignores clicks on draggable elements\n (safari && this.mightDrag && !this.mightDrag.node.isAtom) ||\n // Chrome will sometimes treat a node selection as a\n // cursor, but still report that the node is selected\n // when asked through getSelection. You'll then get a\n // situation where clicking at the point where that\n // (hidden) cursor is doesn't change the selection, and\n // thus doesn't get a reaction from ProseMirror. This\n // works around that.\n (chrome && !this.view.state.selection.visible &&\n Math.min(Math.abs(pos.pos - this.view.state.selection.from), Math.abs(pos.pos - this.view.state.selection.to)) <= 2))) {\n updateSelection(this.view, prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.Selection.near(this.view.state.doc.resolve(pos.pos)), \"pointer\");\n event.preventDefault();\n }\n else {\n setSelectionOrigin(this.view, \"pointer\");\n }\n }\n move(event) {\n this.updateAllowDefault(event);\n setSelectionOrigin(this.view, \"pointer\");\n if (event.buttons == 0)\n this.done();\n }\n updateAllowDefault(event) {\n if (!this.allowDefault && (Math.abs(this.event.x - event.clientX) > 4 ||\n Math.abs(this.event.y - event.clientY) > 4))\n this.allowDefault = true;\n }\n}\nhandlers.touchstart = view => {\n view.input.lastTouch = Date.now();\n forceDOMFlush(view);\n setSelectionOrigin(view, \"pointer\");\n};\nhandlers.touchmove = view => {\n view.input.lastTouch = Date.now();\n setSelectionOrigin(view, \"pointer\");\n};\nhandlers.contextmenu = view => forceDOMFlush(view);\nfunction inOrNearComposition(view, event) {\n if (view.composing)\n return true;\n // See https://www.stum.de/2016/06/24/handling-ime-events-in-javascript/.\n // On Japanese input method editors (IMEs), the Enter key is used to confirm character\n // selection. On Safari, when Enter is pressed, compositionend and keydown events are\n // emitted. The keydown event triggers newline insertion, which we don't want.\n // This method returns true if the keydown event should be ignored.\n // We only ignore it once, as pressing Enter a second time *should* insert a newline.\n // Furthermore, the keydown event timestamp must be close to the compositionEndedAt timestamp.\n // This guards against the case where compositionend is triggered without the keyboard\n // (e.g. character confirmation may be done with the mouse), and keydown is triggered\n // afterwards- we wouldn't want to ignore the keydown event in this case.\n if (safari && Math.abs(event.timeStamp - view.input.compositionEndedAt) < 500) {\n view.input.compositionEndedAt = -2e8;\n return true;\n }\n return false;\n}\n// Drop active composition after 5 seconds of inactivity on Android\nconst timeoutComposition = android ? 5000 : -1;\neditHandlers.compositionstart = editHandlers.compositionupdate = view => {\n if (!view.composing) {\n view.domObserver.flush();\n let { state } = view, $pos = state.selection.$to;\n if (state.selection instanceof prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.TextSelection &&\n (state.storedMarks ||\n (!$pos.textOffset && $pos.parentOffset && $pos.nodeBefore.marks.some(m => m.type.spec.inclusive === false)) ||\n chrome && windows && selectionBeforeUneditable(view))) { // Issue #1500\n // Need to wrap the cursor in mark nodes different from the ones in the DOM context\n view.markCursor = view.state.storedMarks || $pos.marks();\n endComposition(view, true);\n view.markCursor = null;\n }\n else {\n endComposition(view, !state.selection.empty);\n // In firefox, if the cursor is after but outside a marked node,\n // the inserted text won't inherit the marks. So this moves it\n // inside if necessary.\n if (gecko && state.selection.empty && $pos.parentOffset && !$pos.textOffset && $pos.nodeBefore.marks.length) {\n let sel = view.domSelectionRange();\n for (let node = sel.focusNode, offset = sel.focusOffset; node && node.nodeType == 1 && offset != 0;) {\n let before = offset < 0 ? node.lastChild : node.childNodes[offset - 1];\n if (!before)\n break;\n if (before.nodeType == 3) {\n let sel = view.domSelection();\n if (sel)\n sel.collapse(before, before.nodeValue.length);\n break;\n }\n else {\n node = before;\n offset = -1;\n }\n }\n }\n }\n view.input.composing = true;\n }\n scheduleComposeEnd(view, timeoutComposition);\n};\nfunction selectionBeforeUneditable(view) {\n let { focusNode, focusOffset } = view.domSelectionRange();\n if (!focusNode || focusNode.nodeType != 1 || focusOffset >= focusNode.childNodes.length)\n return false;\n let next = focusNode.childNodes[focusOffset];\n return next.nodeType == 1 && next.contentEditable == \"false\";\n}\neditHandlers.compositionend = (view, event) => {\n if (view.composing) {\n view.input.composing = false;\n view.input.compositionEndedAt = event.timeStamp;\n view.input.compositionPendingChanges = view.domObserver.pendingRecords().length ? view.input.compositionID : 0;\n view.input.compositionNode = null;\n if (view.input.badSafariComposition)\n view.domObserver.forceFlush();\n else if (view.input.compositionPendingChanges)\n Promise.resolve().then(() => view.domObserver.flush());\n view.input.compositionID++;\n scheduleComposeEnd(view, 20);\n }\n};\nfunction scheduleComposeEnd(view, delay) {\n clearTimeout(view.input.composingTimeout);\n if (delay > -1)\n view.input.composingTimeout = setTimeout(() => endComposition(view), delay);\n}\nfunction clearComposition(view) {\n if (view.composing) {\n view.input.composing = false;\n view.input.compositionEndedAt = timestampFromCustomEvent();\n }\n while (view.input.compositionNodes.length > 0)\n view.input.compositionNodes.pop().markParentsDirty();\n}\nfunction findCompositionNode(view) {\n let sel = view.domSelectionRange();\n if (!sel.focusNode)\n return null;\n let textBefore = textNodeBefore$1(sel.focusNode, sel.focusOffset);\n let textAfter = textNodeAfter$1(sel.focusNode, sel.focusOffset);\n if (textBefore && textAfter && textBefore != textAfter) {\n let descAfter = textAfter.pmViewDesc, lastChanged = view.domObserver.lastChangedTextNode;\n if (textBefore == lastChanged || textAfter == lastChanged)\n return lastChanged;\n if (!descAfter || !descAfter.isText(textAfter.nodeValue)) {\n return textAfter;\n }\n else if (view.input.compositionNode == textAfter) {\n let descBefore = textBefore.pmViewDesc;\n if (!(!descBefore || !descBefore.isText(textBefore.nodeValue)))\n return textAfter;\n }\n }\n return textBefore || textAfter;\n}\nfunction timestampFromCustomEvent() {\n let event = document.createEvent(\"Event\");\n event.initEvent(\"event\", true, true);\n return event.timeStamp;\n}\n/**\n@internal\n*/\nfunction endComposition(view, restarting = false) {\n if (android && view.domObserver.flushingSoon >= 0)\n return;\n view.domObserver.forceFlush();\n clearComposition(view);\n if (restarting || view.docView && view.docView.dirty) {\n let sel = selectionFromDOM(view), cur = view.state.selection;\n if (sel && !sel.eq(cur))\n view.dispatch(view.state.tr.setSelection(sel));\n else if ((view.markCursor || restarting) && !cur.$from.node(cur.$from.sharedDepth(cur.to)).inlineContent)\n view.dispatch(view.state.tr.deleteSelection());\n else\n view.updateState(view.state);\n return true;\n }\n return false;\n}\nfunction captureCopy(view, dom) {\n // The extra wrapper is somehow necessary on IE/Edge to prevent the\n // content from being mangled when it is put onto the clipboard\n if (!view.dom.parentNode)\n return;\n let wrap = view.dom.parentNode.appendChild(document.createElement(\"div\"));\n wrap.appendChild(dom);\n wrap.style.cssText = \"position: fixed; left: -10000px; top: 10px\";\n let sel = getSelection(), range = document.createRange();\n range.selectNodeContents(dom);\n // Done because IE will fire a selectionchange moving the selection\n // to its start when removeAllRanges is called and the editor still\n // has focus (which will mess up the editor's selection state).\n view.dom.blur();\n sel.removeAllRanges();\n sel.addRange(range);\n setTimeout(() => {\n if (wrap.parentNode)\n wrap.parentNode.removeChild(wrap);\n view.focus();\n }, 50);\n}\n// This is very crude, but unfortunately both these browsers _pretend_\n// that they have a clipboard API—all the objects and methods are\n// there, they just don't work, and they are hard to test.\nconst brokenClipboardAPI = (ie && ie_version < 15) ||\n (ios && webkit_version < 604);\nhandlers.copy = editHandlers.cut = (view, _event) => {\n let event = _event;\n let sel = view.state.selection, cut = event.type == \"cut\";\n if (sel.empty)\n return;\n // IE and Edge's clipboard interface is completely broken\n let data = brokenClipboardAPI ? null : event.clipboardData;\n let slice = sel.content(), { dom, text } = serializeForClipboard(view, slice);\n if (data) {\n event.preventDefault();\n data.clearData();\n data.setData(\"text/html\", dom.innerHTML);\n data.setData(\"text/plain\", text);\n }\n else {\n captureCopy(view, dom);\n }\n if (cut)\n view.dispatch(view.state.tr.deleteSelection().scrollIntoView().setMeta(\"uiEvent\", \"cut\"));\n};\nfunction sliceSingleNode(slice) {\n return slice.openStart == 0 && slice.openEnd == 0 && slice.content.childCount == 1 ? slice.content.firstChild : null;\n}\nfunction capturePaste(view, event) {\n if (!view.dom.parentNode)\n return;\n let plainText = view.input.shiftKey || view.state.selection.$from.parent.type.spec.code;\n let target = view.dom.parentNode.appendChild(document.createElement(plainText ? \"textarea\" : \"div\"));\n if (!plainText)\n target.contentEditable = \"true\";\n target.style.cssText = \"position: fixed; left: -10000px; top: 10px\";\n target.focus();\n let plain = view.input.shiftKey && view.input.lastKeyCode != 45;\n setTimeout(() => {\n view.focus();\n if (target.parentNode)\n target.parentNode.removeChild(target);\n if (plainText)\n doPaste(view, target.value, null, plain, event);\n else\n doPaste(view, target.textContent, target.innerHTML, plain, event);\n }, 50);\n}\nfunction doPaste(view, text, html, preferPlain, event) {\n let slice = parseFromClipboard(view, text, html, preferPlain, view.state.selection.$from);\n if (view.someProp(\"handlePaste\", f => f(view, event, slice || prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice.empty)))\n return true;\n if (!slice)\n return false;\n let singleNode = sliceSingleNode(slice);\n let tr = singleNode\n ? view.state.tr.replaceSelectionWith(singleNode, preferPlain)\n : view.state.tr.replaceSelection(slice);\n view.dispatch(tr.scrollIntoView().setMeta(\"paste\", true).setMeta(\"uiEvent\", \"paste\"));\n return true;\n}\nfunction getText(clipboardData) {\n let text = clipboardData.getData(\"text/plain\") || clipboardData.getData(\"Text\");\n if (text)\n return text;\n let uris = clipboardData.getData(\"text/uri-list\");\n return uris ? uris.replace(/\\r?\\n/g, \" \") : \"\";\n}\neditHandlers.paste = (view, _event) => {\n let event = _event;\n // Handling paste from JavaScript during composition is very poorly\n // handled by browsers, so as a dodgy but preferable kludge, we just\n // let the browser do its native thing there, except on Android,\n // where the editor is almost always composing.\n if (view.composing && !android)\n return;\n let data = brokenClipboardAPI ? null : event.clipboardData;\n let plain = view.input.shiftKey && view.input.lastKeyCode != 45;\n if (data && doPaste(view, getText(data), data.getData(\"text/html\"), plain, event))\n event.preventDefault();\n else\n capturePaste(view, event);\n};\nclass Dragging {\n constructor(slice, move, node) {\n this.slice = slice;\n this.move = move;\n this.node = node;\n }\n}\nconst dragCopyModifier = mac ? \"altKey\" : \"ctrlKey\";\nfunction dragMoves(view, event) {\n let moves = view.someProp(\"dragCopies\", test => !test(event));\n return moves != null ? moves : !event[dragCopyModifier];\n}\nhandlers.dragstart = (view, _event) => {\n let event = _event;\n let mouseDown = view.input.mouseDown;\n if (mouseDown)\n mouseDown.done();\n if (!event.dataTransfer)\n return;\n let sel = view.state.selection;\n let pos = sel.empty ? null : view.posAtCoords(eventCoords(event));\n let node;\n if (pos && pos.pos >= sel.from && pos.pos <= (sel instanceof prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.NodeSelection ? sel.to - 1 : sel.to)) ;\n else if (mouseDown && mouseDown.mightDrag) {\n node = prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.NodeSelection.create(view.state.doc, mouseDown.mightDrag.pos);\n }\n else if (event.target && event.target.nodeType == 1) {\n let desc = view.docView.nearestDesc(event.target, true);\n if (desc && desc.node.type.spec.draggable && desc != view.docView)\n node = prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.NodeSelection.create(view.state.doc, desc.posBefore);\n }\n let draggedSlice = (node || view.state.selection).content();\n let { dom, text, slice } = serializeForClipboard(view, draggedSlice);\n // Pre-120 Chrome versions clear files when calling `clearData` (#1472)\n if (!event.dataTransfer.files.length || !chrome || chrome_version > 120)\n event.dataTransfer.clearData();\n event.dataTransfer.setData(brokenClipboardAPI ? \"Text\" : \"text/html\", dom.innerHTML);\n // See https://github.com/ProseMirror/prosemirror/issues/1156\n event.dataTransfer.effectAllowed = \"copyMove\";\n if (!brokenClipboardAPI)\n event.dataTransfer.setData(\"text/plain\", text);\n view.dragging = new Dragging(slice, dragMoves(view, event), node);\n};\nhandlers.dragend = view => {\n let dragging = view.dragging;\n window.setTimeout(() => {\n if (view.dragging == dragging)\n view.dragging = null;\n }, 50);\n};\neditHandlers.dragover = editHandlers.dragenter = (_, e) => e.preventDefault();\neditHandlers.drop = (view, event) => {\n try {\n handleDrop(view, event, view.dragging);\n }\n finally {\n view.dragging = null;\n }\n};\nfunction handleDrop(view, event, dragging) {\n if (!event.dataTransfer)\n return;\n let eventPos = view.posAtCoords(eventCoords(event));\n if (!eventPos)\n return;\n let $mouse = view.state.doc.resolve(eventPos.pos);\n let slice = dragging && dragging.slice;\n if (slice) {\n view.someProp(\"transformPasted\", f => { slice = f(slice, view, false); });\n }\n else {\n slice = parseFromClipboard(view, getText(event.dataTransfer), brokenClipboardAPI ? null : event.dataTransfer.getData(\"text/html\"), false, $mouse);\n }\n let move = !!(dragging && dragMoves(view, event));\n if (view.someProp(\"handleDrop\", f => f(view, event, slice || prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Slice.empty, move))) {\n event.preventDefault();\n return;\n }\n if (!slice)\n return;\n event.preventDefault();\n let insertPos = slice ? (0,prosemirror_transform__WEBPACK_IMPORTED_MODULE_2__.dropPoint)(view.state.doc, $mouse.pos, slice) : $mouse.pos;\n if (insertPos == null)\n insertPos = $mouse.pos;\n let tr = view.state.tr;\n if (move) {\n let { node } = dragging;\n if (node)\n node.replace(tr);\n else\n tr.deleteSelection();\n }\n let pos = tr.mapping.map(insertPos);\n let isNode = slice.openStart == 0 && slice.openEnd == 0 && slice.content.childCount == 1;\n let beforeInsert = tr.doc;\n if (isNode)\n tr.replaceRangeWith(pos, pos, slice.content.firstChild);\n else\n tr.replaceRange(pos, pos, slice);\n if (tr.doc.eq(beforeInsert))\n return;\n let $pos = tr.doc.resolve(pos);\n if (isNode && prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.NodeSelection.isSelectable(slice.content.firstChild) &&\n $pos.nodeAfter && $pos.nodeAfter.sameMarkup(slice.content.firstChild)) {\n tr.setSelection(new prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.NodeSelection($pos));\n }\n else {\n let end = tr.mapping.map(insertPos);\n tr.mapping.maps[tr.mapping.maps.length - 1].forEach((_from, _to, _newFrom, newTo) => end = newTo);\n tr.setSelection(selectionBetween(view, $pos, tr.doc.resolve(end)));\n }\n view.focus();\n view.dispatch(tr.setMeta(\"uiEvent\", \"drop\"));\n}\nhandlers.focus = view => {\n view.input.lastFocus = Date.now();\n if (!view.focused) {\n view.domObserver.stop();\n view.dom.classList.add(\"ProseMirror-focused\");\n view.domObserver.start();\n view.focused = true;\n setTimeout(() => {\n if (view.docView && view.hasFocus() && !view.domObserver.currentSelection.eq(view.domSelectionRange()))\n selectionToDOM(view);\n }, 20);\n }\n};\nhandlers.blur = (view, _event) => {\n let event = _event;\n if (view.focused) {\n view.domObserver.stop();\n view.dom.classList.remove(\"ProseMirror-focused\");\n view.domObserver.start();\n if (event.relatedTarget && view.dom.contains(event.relatedTarget))\n view.domObserver.currentSelection.clear();\n view.focused = false;\n }\n};\nhandlers.beforeinput = (view, _event) => {\n let event = _event;\n // We should probably do more with beforeinput events, but support\n // is so spotty that I'm still waiting to see where they are going.\n // Very specific hack to deal with backspace sometimes failing on\n // Chrome Android when after an uneditable node.\n if (chrome && android && event.inputType == \"deleteContentBackward\") {\n view.domObserver.flushSoon();\n let { domChangeCount } = view.input;\n setTimeout(() => {\n if (view.input.domChangeCount != domChangeCount)\n return; // Event already had some effect\n // This bug tends to close the virtual keyboard, so we refocus\n view.dom.blur();\n view.focus();\n if (view.someProp(\"handleKeyDown\", f => f(view, keyEvent(8, \"Backspace\"))))\n return;\n let { $cursor } = view.state.selection;\n // Crude approximation of backspace behavior when no command handled it\n if ($cursor && $cursor.pos > 0)\n view.dispatch(view.state.tr.delete($cursor.pos - 1, $cursor.pos).scrollIntoView());\n }, 50);\n }\n};\n// Make sure all handlers get registered\nfor (let prop in editHandlers)\n handlers[prop] = editHandlers[prop];\n\nfunction compareObjs(a, b) {\n if (a == b)\n return true;\n for (let p in a)\n if (a[p] !== b[p])\n return false;\n for (let p in b)\n if (!(p in a))\n return false;\n return true;\n}\nclass WidgetType {\n constructor(toDOM, spec) {\n this.toDOM = toDOM;\n this.spec = spec || noSpec;\n this.side = this.spec.side || 0;\n }\n map(mapping, span, offset, oldOffset) {\n let { pos, deleted } = mapping.mapResult(span.from + oldOffset, this.side < 0 ? -1 : 1);\n return deleted ? null : new Decoration(pos - offset, pos - offset, this);\n }\n valid() { return true; }\n eq(other) {\n return this == other ||\n (other instanceof WidgetType &&\n (this.spec.key && this.spec.key == other.spec.key ||\n this.toDOM == other.toDOM && compareObjs(this.spec, other.spec)));\n }\n destroy(node) {\n if (this.spec.destroy)\n this.spec.destroy(node);\n }\n}\nclass InlineType {\n constructor(attrs, spec) {\n this.attrs = attrs;\n this.spec = spec || noSpec;\n }\n map(mapping, span, offset, oldOffset) {\n let from = mapping.map(span.from + oldOffset, this.spec.inclusiveStart ? -1 : 1) - offset;\n let to = mapping.map(span.to + oldOffset, this.spec.inclusiveEnd ? 1 : -1) - offset;\n return from >= to ? null : new Decoration(from, to, this);\n }\n valid(_, span) { return span.from < span.to; }\n eq(other) {\n return this == other ||\n (other instanceof InlineType && compareObjs(this.attrs, other.attrs) &&\n compareObjs(this.spec, other.spec));\n }\n static is(span) { return span.type instanceof InlineType; }\n destroy() { }\n}\nclass NodeType {\n constructor(attrs, spec) {\n this.attrs = attrs;\n this.spec = spec || noSpec;\n }\n map(mapping, span, offset, oldOffset) {\n let from = mapping.mapResult(span.from + oldOffset, 1);\n if (from.deleted)\n return null;\n let to = mapping.mapResult(span.to + oldOffset, -1);\n if (to.deleted || to.pos <= from.pos)\n return null;\n return new Decoration(from.pos - offset, to.pos - offset, this);\n }\n valid(node, span) {\n let { index, offset } = node.content.findIndex(span.from), child;\n return offset == span.from && !(child = node.child(index)).isText && offset + child.nodeSize == span.to;\n }\n eq(other) {\n return this == other ||\n (other instanceof NodeType && compareObjs(this.attrs, other.attrs) &&\n compareObjs(this.spec, other.spec));\n }\n destroy() { }\n}\n/**\nDecoration objects can be provided to the view through the\n[`decorations` prop](https://prosemirror.net/docs/ref/#view.EditorProps.decorations). They come in\nseveral variants—see the static members of this class for details.\n*/\nclass Decoration {\n /**\n @internal\n */\n constructor(\n /**\n The start position of the decoration.\n */\n from, \n /**\n The end position. Will be the same as `from` for [widget\n decorations](https://prosemirror.net/docs/ref/#view.Decoration^widget).\n */\n to, \n /**\n @internal\n */\n type) {\n this.from = from;\n this.to = to;\n this.type = type;\n }\n /**\n @internal\n */\n copy(from, to) {\n return new Decoration(from, to, this.type);\n }\n /**\n @internal\n */\n eq(other, offset = 0) {\n return this.type.eq(other.type) && this.from + offset == other.from && this.to + offset == other.to;\n }\n /**\n @internal\n */\n map(mapping, offset, oldOffset) {\n return this.type.map(mapping, this, offset, oldOffset);\n }\n /**\n Creates a widget decoration, which is a DOM node that's shown in\n the document at the given position. It is recommended that you\n delay rendering the widget by passing a function that will be\n called when the widget is actually drawn in a view, but you can\n also directly pass a DOM node. `getPos` can be used to find the\n widget's current document position.\n */\n static widget(pos, toDOM, spec) {\n return new Decoration(pos, pos, new WidgetType(toDOM, spec));\n }\n /**\n Creates an inline decoration, which adds the given attributes to\n each inline node between `from` and `to`.\n */\n static inline(from, to, attrs, spec) {\n return new Decoration(from, to, new InlineType(attrs, spec));\n }\n /**\n Creates a node decoration. `from` and `to` should point precisely\n before and after a node in the document. That node, and only that\n node, will receive the given attributes.\n */\n static node(from, to, attrs, spec) {\n return new Decoration(from, to, new NodeType(attrs, spec));\n }\n /**\n The spec provided when creating this decoration. Can be useful\n if you've stored extra information in that object.\n */\n get spec() { return this.type.spec; }\n /**\n @internal\n */\n get inline() { return this.type instanceof InlineType; }\n /**\n @internal\n */\n get widget() { return this.type instanceof WidgetType; }\n}\nconst none = [], noSpec = {};\n/**\nA collection of [decorations](https://prosemirror.net/docs/ref/#view.Decoration), organized in such\na way that the drawing algorithm can efficiently use and compare\nthem. This is a persistent data structure—it is not modified,\nupdates create a new value.\n*/\nclass DecorationSet {\n /**\n @internal\n */\n constructor(local, children) {\n this.local = local.length ? local : none;\n this.children = children.length ? children : none;\n }\n /**\n Create a set of decorations, using the structure of the given\n document. This will consume (modify) the `decorations` array, so\n you must make a copy if you want need to preserve that.\n */\n static create(doc, decorations) {\n return decorations.length ? buildTree(decorations, doc, 0, noSpec) : empty;\n }\n /**\n Find all decorations in this set which touch the given range\n (including decorations that start or end directly at the\n boundaries) and match the given predicate on their spec. When\n `start` and `end` are omitted, all decorations in the set are\n considered. When `predicate` isn't given, all decorations are\n assumed to match.\n */\n find(start, end, predicate) {\n let result = [];\n this.findInner(start == null ? 0 : start, end == null ? 1e9 : end, result, 0, predicate);\n return result;\n }\n findInner(start, end, result, offset, predicate) {\n for (let i = 0; i < this.local.length; i++) {\n let span = this.local[i];\n if (span.from <= end && span.to >= start && (!predicate || predicate(span.spec)))\n result.push(span.copy(span.from + offset, span.to + offset));\n }\n for (let i = 0; i < this.children.length; i += 3) {\n if (this.children[i] < end && this.children[i + 1] > start) {\n let childOff = this.children[i] + 1;\n this.children[i + 2].findInner(start - childOff, end - childOff, result, offset + childOff, predicate);\n }\n }\n }\n /**\n Map the set of decorations in response to a change in the\n document.\n */\n map(mapping, doc, options) {\n if (this == empty || mapping.maps.length == 0)\n return this;\n return this.mapInner(mapping, doc, 0, 0, options || noSpec);\n }\n /**\n @internal\n */\n mapInner(mapping, node, offset, oldOffset, options) {\n let newLocal;\n for (let i = 0; i < this.local.length; i++) {\n let mapped = this.local[i].map(mapping, offset, oldOffset);\n if (mapped && mapped.type.valid(node, mapped))\n (newLocal || (newLocal = [])).push(mapped);\n else if (options.onRemove)\n options.onRemove(this.local[i].spec);\n }\n if (this.children.length)\n return mapChildren(this.children, newLocal || [], mapping, node, offset, oldOffset, options);\n else\n return newLocal ? new DecorationSet(newLocal.sort(byPos), none) : empty;\n }\n /**\n Add the given array of decorations to the ones in the set,\n producing a new set. Consumes the `decorations` array. Needs\n access to the current document to create the appropriate tree\n structure.\n */\n add(doc, decorations) {\n if (!decorations.length)\n return this;\n if (this == empty)\n return DecorationSet.create(doc, decorations);\n return this.addInner(doc, decorations, 0);\n }\n addInner(doc, decorations, offset) {\n let children, childIndex = 0;\n doc.forEach((childNode, childOffset) => {\n let baseOffset = childOffset + offset, found;\n if (!(found = takeSpansForNode(decorations, childNode, baseOffset)))\n return;\n if (!children)\n children = this.children.slice();\n while (childIndex < children.length && children[childIndex] < childOffset)\n childIndex += 3;\n if (children[childIndex] == childOffset)\n children[childIndex + 2] = children[childIndex + 2].addInner(childNode, found, baseOffset + 1);\n else\n children.splice(childIndex, 0, childOffset, childOffset + childNode.nodeSize, buildTree(found, childNode, baseOffset + 1, noSpec));\n childIndex += 3;\n });\n let local = moveSpans(childIndex ? withoutNulls(decorations) : decorations, -offset);\n for (let i = 0; i < local.length; i++)\n if (!local[i].type.valid(doc, local[i]))\n local.splice(i--, 1);\n return new DecorationSet(local.length ? this.local.concat(local).sort(byPos) : this.local, children || this.children);\n }\n /**\n Create a new set that contains the decorations in this set, minus\n the ones in the given array.\n */\n remove(decorations) {\n if (decorations.length == 0 || this == empty)\n return this;\n return this.removeInner(decorations, 0);\n }\n removeInner(decorations, offset) {\n let children = this.children, local = this.local;\n for (let i = 0; i < children.length; i += 3) {\n let found;\n let from = children[i] + offset, to = children[i + 1] + offset;\n for (let j = 0, span; j < decorations.length; j++)\n if (span = decorations[j]) {\n if (span.from > from && span.to < to) {\n decorations[j] = null;\n (found || (found = [])).push(span);\n }\n }\n if (!found)\n continue;\n if (children == this.children)\n children = this.children.slice();\n let removed = children[i + 2].removeInner(found, from + 1);\n if (removed != empty) {\n children[i + 2] = removed;\n }\n else {\n children.splice(i, 3);\n i -= 3;\n }\n }\n if (local.length)\n for (let i = 0, span; i < decorations.length; i++)\n if (span = decorations[i]) {\n for (let j = 0; j < local.length; j++)\n if (local[j].eq(span, offset)) {\n if (local == this.local)\n local = this.local.slice();\n local.splice(j--, 1);\n }\n }\n if (children == this.children && local == this.local)\n return this;\n return local.length || children.length ? new DecorationSet(local, children) : empty;\n }\n forChild(offset, node) {\n if (this == empty)\n return this;\n if (node.isLeaf)\n return DecorationSet.empty;\n let child, local;\n for (let i = 0; i < this.children.length; i += 3)\n if (this.children[i] >= offset) {\n if (this.children[i] == offset)\n child = this.children[i + 2];\n break;\n }\n let start = offset + 1, end = start + node.content.size;\n for (let i = 0; i < this.local.length; i++) {\n let dec = this.local[i];\n if (dec.from < end && dec.to > start && (dec.type instanceof InlineType)) {\n let from = Math.max(start, dec.from) - start, to = Math.min(end, dec.to) - start;\n if (from < to)\n (local || (local = [])).push(dec.copy(from, to));\n }\n }\n if (local) {\n let localSet = new DecorationSet(local.sort(byPos), none);\n return child ? new DecorationGroup([localSet, child]) : localSet;\n }\n return child || empty;\n }\n /**\n @internal\n */\n eq(other) {\n if (this == other)\n return true;\n if (!(other instanceof DecorationSet) ||\n this.local.length != other.local.length ||\n this.children.length != other.children.length)\n return false;\n for (let i = 0; i < this.local.length; i++)\n if (!this.local[i].eq(other.local[i]))\n return false;\n for (let i = 0; i < this.children.length; i += 3)\n if (this.children[i] != other.children[i] ||\n this.children[i + 1] != other.children[i + 1] ||\n !this.children[i + 2].eq(other.children[i + 2]))\n return false;\n return true;\n }\n /**\n @internal\n */\n locals(node) {\n return removeOverlap(this.localsInner(node));\n }\n /**\n @internal\n */\n localsInner(node) {\n if (this == empty)\n return none;\n if (node.inlineContent || !this.local.some(InlineType.is))\n return this.local;\n let result = [];\n for (let i = 0; i < this.local.length; i++) {\n if (!(this.local[i].type instanceof InlineType))\n result.push(this.local[i]);\n }\n return result;\n }\n forEachSet(f) { f(this); }\n}\n/**\nThe empty set of decorations.\n*/\nDecorationSet.empty = new DecorationSet([], []);\n/**\n@internal\n*/\nDecorationSet.removeOverlap = removeOverlap;\nconst empty = DecorationSet.empty;\n// An abstraction that allows the code dealing with decorations to\n// treat multiple DecorationSet objects as if it were a single object\n// with (a subset of) the same interface.\nclass DecorationGroup {\n constructor(members) {\n this.members = members;\n }\n map(mapping, doc) {\n const mappedDecos = this.members.map(member => member.map(mapping, doc, noSpec));\n return DecorationGroup.from(mappedDecos);\n }\n forChild(offset, child) {\n if (child.isLeaf)\n return DecorationSet.empty;\n let found = [];\n for (let i = 0; i < this.members.length; i++) {\n let result = this.members[i].forChild(offset, child);\n if (result == empty)\n continue;\n if (result instanceof DecorationGroup)\n found = found.concat(result.members);\n else\n found.push(result);\n }\n return DecorationGroup.from(found);\n }\n eq(other) {\n if (!(other instanceof DecorationGroup) ||\n other.members.length != this.members.length)\n return false;\n for (let i = 0; i < this.members.length; i++)\n if (!this.members[i].eq(other.members[i]))\n return false;\n return true;\n }\n locals(node) {\n let result, sorted = true;\n for (let i = 0; i < this.members.length; i++) {\n let locals = this.members[i].localsInner(node);\n if (!locals.length)\n continue;\n if (!result) {\n result = locals;\n }\n else {\n if (sorted) {\n result = result.slice();\n sorted = false;\n }\n for (let j = 0; j < locals.length; j++)\n result.push(locals[j]);\n }\n }\n return result ? removeOverlap(sorted ? result : result.sort(byPos)) : none;\n }\n // Create a group for the given array of decoration sets, or return\n // a single set when possible.\n static from(members) {\n switch (members.length) {\n case 0: return empty;\n case 1: return members[0];\n default: return new DecorationGroup(members.every(m => m instanceof DecorationSet) ? members :\n members.reduce((r, m) => r.concat(m instanceof DecorationSet ? m : m.members), []));\n }\n }\n forEachSet(f) {\n for (let i = 0; i < this.members.length; i++)\n this.members[i].forEachSet(f);\n }\n}\nfunction mapChildren(oldChildren, newLocal, mapping, node, offset, oldOffset, options) {\n let children = oldChildren.slice();\n // Mark the children that are directly touched by changes, and\n // move those that are after the changes.\n for (let i = 0, baseOffset = oldOffset; i < mapping.maps.length; i++) {\n let moved = 0;\n mapping.maps[i].forEach((oldStart, oldEnd, newStart, newEnd) => {\n let dSize = (newEnd - newStart) - (oldEnd - oldStart);\n for (let i = 0; i < children.length; i += 3) {\n let end = children[i + 1];\n if (end < 0 || oldStart > end + baseOffset - moved)\n continue;\n let start = children[i] + baseOffset - moved;\n if (oldEnd >= start) {\n children[i + 1] = oldStart <= start ? -2 : -1;\n }\n else if (oldStart >= baseOffset && dSize) {\n children[i] += dSize;\n children[i + 1] += dSize;\n }\n }\n moved += dSize;\n });\n baseOffset = mapping.maps[i].map(baseOffset, -1);\n }\n // Find the child nodes that still correspond to a single node,\n // recursively call mapInner on them and update their positions.\n let mustRebuild = false;\n for (let i = 0; i < children.length; i += 3)\n if (children[i + 1] < 0) { // Touched nodes\n if (children[i + 1] == -2) {\n mustRebuild = true;\n children[i + 1] = -1;\n continue;\n }\n let from = mapping.map(oldChildren[i] + oldOffset), fromLocal = from - offset;\n if (fromLocal < 0 || fromLocal >= node.content.size) {\n mustRebuild = true;\n continue;\n }\n // Must read oldChildren because children was tagged with -1\n let to = mapping.map(oldChildren[i + 1] + oldOffset, -1), toLocal = to - offset;\n let { index, offset: childOffset } = node.content.findIndex(fromLocal);\n let childNode = node.maybeChild(index);\n if (childNode && childOffset == fromLocal && childOffset + childNode.nodeSize == toLocal) {\n let mapped = children[i + 2]\n .mapInner(mapping, childNode, from + 1, oldChildren[i] + oldOffset + 1, options);\n if (mapped != empty) {\n children[i] = fromLocal;\n children[i + 1] = toLocal;\n children[i + 2] = mapped;\n }\n else {\n children[i + 1] = -2;\n mustRebuild = true;\n }\n }\n else {\n mustRebuild = true;\n }\n }\n // Remaining children must be collected and rebuilt into the appropriate structure\n if (mustRebuild) {\n let decorations = mapAndGatherRemainingDecorations(children, oldChildren, newLocal, mapping, offset, oldOffset, options);\n let built = buildTree(decorations, node, 0, options);\n newLocal = built.local;\n for (let i = 0; i < children.length; i += 3)\n if (children[i + 1] < 0) {\n children.splice(i, 3);\n i -= 3;\n }\n for (let i = 0, j = 0; i < built.children.length; i += 3) {\n let from = built.children[i];\n while (j < children.length && children[j] < from)\n j += 3;\n children.splice(j, 0, built.children[i], built.children[i + 1], built.children[i + 2]);\n }\n }\n return new DecorationSet(newLocal.sort(byPos), children);\n}\nfunction moveSpans(spans, offset) {\n if (!offset || !spans.length)\n return spans;\n let result = [];\n for (let i = 0; i < spans.length; i++) {\n let span = spans[i];\n result.push(new Decoration(span.from + offset, span.to + offset, span.type));\n }\n return result;\n}\nfunction mapAndGatherRemainingDecorations(children, oldChildren, decorations, mapping, offset, oldOffset, options) {\n // Gather all decorations from the remaining marked children\n function gather(set, oldOffset) {\n for (let i = 0; i < set.local.length; i++) {\n let mapped = set.local[i].map(mapping, offset, oldOffset);\n if (mapped)\n decorations.push(mapped);\n else if (options.onRemove)\n options.onRemove(set.local[i].spec);\n }\n for (let i = 0; i < set.children.length; i += 3)\n gather(set.children[i + 2], set.children[i] + oldOffset + 1);\n }\n for (let i = 0; i < children.length; i += 3)\n if (children[i + 1] == -1)\n gather(children[i + 2], oldChildren[i] + oldOffset + 1);\n return decorations;\n}\nfunction takeSpansForNode(spans, node, offset) {\n if (node.isLeaf)\n return null;\n let end = offset + node.nodeSize, found = null;\n for (let i = 0, span; i < spans.length; i++) {\n if ((span = spans[i]) && span.from > offset && span.to < end) {\n (found || (found = [])).push(span);\n spans[i] = null;\n }\n }\n return found;\n}\nfunction withoutNulls(array) {\n let result = [];\n for (let i = 0; i < array.length; i++)\n if (array[i] != null)\n result.push(array[i]);\n return result;\n}\n// Build up a tree that corresponds to a set of decorations. `offset`\n// is a base offset that should be subtracted from the `from` and `to`\n// positions in the spans (so that we don't have to allocate new spans\n// for recursive calls).\nfunction buildTree(spans, node, offset, options) {\n let children = [], hasNulls = false;\n node.forEach((childNode, localStart) => {\n let found = takeSpansForNode(spans, childNode, localStart + offset);\n if (found) {\n hasNulls = true;\n let subtree = buildTree(found, childNode, offset + localStart + 1, options);\n if (subtree != empty)\n children.push(localStart, localStart + childNode.nodeSize, subtree);\n }\n });\n let locals = moveSpans(hasNulls ? withoutNulls(spans) : spans, -offset).sort(byPos);\n for (let i = 0; i < locals.length; i++)\n if (!locals[i].type.valid(node, locals[i])) {\n if (options.onRemove)\n options.onRemove(locals[i].spec);\n locals.splice(i--, 1);\n }\n return locals.length || children.length ? new DecorationSet(locals, children) : empty;\n}\n// Used to sort decorations so that ones with a low start position\n// come first, and within a set with the same start position, those\n// with an smaller end position come first.\nfunction byPos(a, b) {\n return a.from - b.from || a.to - b.to;\n}\n// Scan a sorted array of decorations for partially overlapping spans,\n// and split those so that only fully overlapping spans are left (to\n// make subsequent rendering easier). Will return the input array if\n// no partially overlapping spans are found (the common case).\nfunction removeOverlap(spans) {\n let working = spans;\n for (let i = 0; i < working.length - 1; i++) {\n let span = working[i];\n if (span.from != span.to)\n for (let j = i + 1; j < working.length; j++) {\n let next = working[j];\n if (next.from == span.from) {\n if (next.to != span.to) {\n if (working == spans)\n working = spans.slice();\n // Followed by a partially overlapping larger span. Split that\n // span.\n working[j] = next.copy(next.from, span.to);\n insertAhead(working, j + 1, next.copy(span.to, next.to));\n }\n continue;\n }\n else {\n if (next.from < span.to) {\n if (working == spans)\n working = spans.slice();\n // The end of this one overlaps with a subsequent span. Split\n // this one.\n working[i] = span.copy(span.from, next.from);\n insertAhead(working, j, span.copy(next.from, span.to));\n }\n break;\n }\n }\n }\n return working;\n}\nfunction insertAhead(array, i, deco) {\n while (i < array.length && byPos(deco, array[i]) > 0)\n i++;\n array.splice(i, 0, deco);\n}\n// Get the decorations associated with the current props of a view.\nfunction viewDecorations(view) {\n let found = [];\n view.someProp(\"decorations\", f => {\n let result = f(view.state);\n if (result && result != empty)\n found.push(result);\n });\n if (view.cursorWrapper)\n found.push(DecorationSet.create(view.state.doc, [view.cursorWrapper.deco]));\n return DecorationGroup.from(found);\n}\n\nconst observeOptions = {\n childList: true,\n characterData: true,\n characterDataOldValue: true,\n attributes: true,\n attributeOldValue: true,\n subtree: true\n};\n// IE11 has very broken mutation observers, so we also listen to DOMCharacterDataModified\nconst useCharData = ie && ie_version <= 11;\nclass SelectionState {\n constructor() {\n this.anchorNode = null;\n this.anchorOffset = 0;\n this.focusNode = null;\n this.focusOffset = 0;\n }\n set(sel) {\n this.anchorNode = sel.anchorNode;\n this.anchorOffset = sel.anchorOffset;\n this.focusNode = sel.focusNode;\n this.focusOffset = sel.focusOffset;\n }\n clear() {\n this.anchorNode = this.focusNode = null;\n }\n eq(sel) {\n return sel.anchorNode == this.anchorNode && sel.anchorOffset == this.anchorOffset &&\n sel.focusNode == this.focusNode && sel.focusOffset == this.focusOffset;\n }\n}\nclass DOMObserver {\n constructor(view, handleDOMChange) {\n this.view = view;\n this.handleDOMChange = handleDOMChange;\n this.queue = [];\n this.flushingSoon = -1;\n this.observer = null;\n this.currentSelection = new SelectionState;\n this.onCharData = null;\n this.suppressingSelectionUpdates = false;\n this.lastChangedTextNode = null;\n this.observer = window.MutationObserver &&\n new window.MutationObserver(mutations => {\n for (let i = 0; i < mutations.length; i++)\n this.queue.push(mutations[i]);\n if (ie && ie_version <= 11 && mutations.some(m => m.type == \"childList\" && m.removedNodes.length ||\n m.type == \"characterData\" && m.oldValue.length > m.target.nodeValue.length)) {\n // IE11 will sometimes (on backspacing out a single character\n // text node after a BR node) call the observer callback\n // before actually updating the DOM, which will cause\n // ProseMirror to miss the change (see #930)\n this.flushSoon();\n }\n else if (safari && view.composing && mutations.some(m => m.type == \"childList\" && m.target.nodeName == \"TR\")) {\n // Safari does weird stuff when finishing a composition in a\n // table cell, which tends to involve inserting inappropriate\n // nodes in the table row.\n view.input.badSafariComposition = true;\n this.flushSoon();\n }\n else {\n this.flush();\n }\n });\n if (useCharData) {\n this.onCharData = e => {\n this.queue.push({ target: e.target, type: \"characterData\", oldValue: e.prevValue });\n this.flushSoon();\n };\n }\n this.onSelectionChange = this.onSelectionChange.bind(this);\n }\n flushSoon() {\n if (this.flushingSoon < 0)\n this.flushingSoon = window.setTimeout(() => { this.flushingSoon = -1; this.flush(); }, 20);\n }\n forceFlush() {\n if (this.flushingSoon > -1) {\n window.clearTimeout(this.flushingSoon);\n this.flushingSoon = -1;\n this.flush();\n }\n }\n start() {\n if (this.observer) {\n this.observer.takeRecords();\n this.observer.observe(this.view.dom, observeOptions);\n }\n if (this.onCharData)\n this.view.dom.addEventListener(\"DOMCharacterDataModified\", this.onCharData);\n this.connectSelection();\n }\n stop() {\n if (this.observer) {\n let take = this.observer.takeRecords();\n if (take.length) {\n for (let i = 0; i < take.length; i++)\n this.queue.push(take[i]);\n window.setTimeout(() => this.flush(), 20);\n }\n this.observer.disconnect();\n }\n if (this.onCharData)\n this.view.dom.removeEventListener(\"DOMCharacterDataModified\", this.onCharData);\n this.disconnectSelection();\n }\n connectSelection() {\n this.view.dom.ownerDocument.addEventListener(\"selectionchange\", this.onSelectionChange);\n }\n disconnectSelection() {\n this.view.dom.ownerDocument.removeEventListener(\"selectionchange\", this.onSelectionChange);\n }\n suppressSelectionUpdates() {\n this.suppressingSelectionUpdates = true;\n setTimeout(() => this.suppressingSelectionUpdates = false, 50);\n }\n onSelectionChange() {\n if (!hasFocusAndSelection(this.view))\n return;\n if (this.suppressingSelectionUpdates)\n return selectionToDOM(this.view);\n // Deletions on IE11 fire their events in the wrong order, giving\n // us a selection change event before the DOM changes are\n // reported.\n if (ie && ie_version <= 11 && !this.view.state.selection.empty) {\n let sel = this.view.domSelectionRange();\n // Selection.isCollapsed isn't reliable on IE\n if (sel.focusNode && isEquivalentPosition(sel.focusNode, sel.focusOffset, sel.anchorNode, sel.anchorOffset))\n return this.flushSoon();\n }\n this.flush();\n }\n setCurSelection() {\n this.currentSelection.set(this.view.domSelectionRange());\n }\n ignoreSelectionChange(sel) {\n if (!sel.focusNode)\n return true;\n let ancestors = new Set, container;\n for (let scan = sel.focusNode; scan; scan = parentNode(scan))\n ancestors.add(scan);\n for (let scan = sel.anchorNode; scan; scan = parentNode(scan))\n if (ancestors.has(scan)) {\n container = scan;\n break;\n }\n let desc = container && this.view.docView.nearestDesc(container);\n if (desc && desc.ignoreMutation({\n type: \"selection\",\n target: container.nodeType == 3 ? container.parentNode : container\n })) {\n this.setCurSelection();\n return true;\n }\n }\n pendingRecords() {\n if (this.observer)\n for (let mut of this.observer.takeRecords())\n this.queue.push(mut);\n return this.queue;\n }\n flush() {\n let { view } = this;\n if (!view.docView || this.flushingSoon > -1)\n return;\n let mutations = this.pendingRecords();\n if (mutations.length)\n this.queue = [];\n let sel = view.domSelectionRange();\n let newSel = !this.suppressingSelectionUpdates && !this.currentSelection.eq(sel) && hasFocusAndSelection(view) && !this.ignoreSelectionChange(sel);\n let from = -1, to = -1, typeOver = false, added = [];\n if (view.editable) {\n for (let i = 0; i < mutations.length; i++) {\n let result = this.registerMutation(mutations[i], added);\n if (result) {\n from = from < 0 ? result.from : Math.min(result.from, from);\n to = to < 0 ? result.to : Math.max(result.to, to);\n if (result.typeOver)\n typeOver = true;\n }\n }\n }\n if (added.some(n => n.nodeName == \"BR\") && (view.input.lastKeyCode == 8 || view.input.lastKeyCode == 46)) {\n // Browsers sometimes insert a bogus break node if you\n // backspace out the last bit of text before an inline-flex node (#1552)\n for (let node of added)\n if (node.nodeName == \"BR\" && node.parentNode) {\n let after = node.nextSibling;\n if (after && after.nodeType == 1 && after.contentEditable == \"false\")\n node.parentNode.removeChild(node);\n }\n }\n else if (gecko && added.length) {\n let brs = added.filter(n => n.nodeName == \"BR\");\n if (brs.length == 2) {\n let [a, b] = brs;\n if (a.parentNode && a.parentNode.parentNode == b.parentNode)\n b.remove();\n else\n a.remove();\n }\n else {\n let { focusNode } = this.currentSelection;\n for (let br of brs) {\n let parent = br.parentNode;\n if (parent && parent.nodeName == \"LI\" && (!focusNode || blockParent(view, focusNode) != parent))\n br.remove();\n }\n }\n }\n let readSel = null;\n // If it looks like the browser has reset the selection to the\n // start of the document after focus, restore the selection from\n // the state\n if (from < 0 && newSel && view.input.lastFocus > Date.now() - 200 &&\n Math.max(view.input.lastTouch, view.input.lastClick.time) < Date.now() - 300 &&\n selectionCollapsed(sel) && (readSel = selectionFromDOM(view)) &&\n readSel.eq(prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.Selection.near(view.state.doc.resolve(0), 1))) {\n view.input.lastFocus = 0;\n selectionToDOM(view);\n this.currentSelection.set(sel);\n view.scrollToSelection();\n }\n else if (from > -1 || newSel) {\n if (from > -1) {\n view.docView.markDirty(from, to);\n checkCSS(view);\n }\n if (view.input.badSafariComposition) {\n view.input.badSafariComposition = false;\n fixUpBadSafariComposition(view, added);\n }\n this.handleDOMChange(from, to, typeOver, added);\n if (view.docView && view.docView.dirty)\n view.updateState(view.state);\n else if (!this.currentSelection.eq(sel))\n selectionToDOM(view);\n this.currentSelection.set(sel);\n }\n }\n registerMutation(mut, added) {\n // Ignore mutations inside nodes that were already noted as inserted\n if (added.indexOf(mut.target) > -1)\n return null;\n let desc = this.view.docView.nearestDesc(mut.target);\n if (mut.type == \"attributes\" &&\n (desc == this.view.docView || mut.attributeName == \"contenteditable\" ||\n // Firefox sometimes fires spurious events for null/empty styles\n (mut.attributeName == \"style\" && !mut.oldValue && !mut.target.getAttribute(\"style\"))))\n return null;\n if (!desc || desc.ignoreMutation(mut))\n return null;\n if (mut.type == \"childList\") {\n for (let i = 0; i < mut.addedNodes.length; i++) {\n let node = mut.addedNodes[i];\n added.push(node);\n if (node.nodeType == 3)\n this.lastChangedTextNode = node;\n }\n if (desc.contentDOM && desc.contentDOM != desc.dom && !desc.contentDOM.contains(mut.target))\n return { from: desc.posBefore, to: desc.posAfter };\n let prev = mut.previousSibling, next = mut.nextSibling;\n if (ie && ie_version <= 11 && mut.addedNodes.length) {\n // IE11 gives us incorrect next/prev siblings for some\n // insertions, so if there are added nodes, recompute those\n for (let i = 0; i < mut.addedNodes.length; i++) {\n let { previousSibling, nextSibling } = mut.addedNodes[i];\n if (!previousSibling || Array.prototype.indexOf.call(mut.addedNodes, previousSibling) < 0)\n prev = previousSibling;\n if (!nextSibling || Array.prototype.indexOf.call(mut.addedNodes, nextSibling) < 0)\n next = nextSibling;\n }\n }\n let fromOffset = prev && prev.parentNode == mut.target\n ? domIndex(prev) + 1 : 0;\n let from = desc.localPosFromDOM(mut.target, fromOffset, -1);\n let toOffset = next && next.parentNode == mut.target\n ? domIndex(next) : mut.target.childNodes.length;\n let to = desc.localPosFromDOM(mut.target, toOffset, 1);\n return { from, to };\n }\n else if (mut.type == \"attributes\") {\n return { from: desc.posAtStart - desc.border, to: desc.posAtEnd + desc.border };\n }\n else { // \"characterData\"\n this.lastChangedTextNode = mut.target;\n return {\n from: desc.posAtStart,\n to: desc.posAtEnd,\n // An event was generated for a text change that didn't change\n // any text. Mark the dom change to fall back to assuming the\n // selection was typed over with an identical value if it can't\n // find another change.\n typeOver: mut.target.nodeValue == mut.oldValue\n };\n }\n }\n}\nlet cssChecked = new WeakMap();\nlet cssCheckWarned = false;\nfunction checkCSS(view) {\n if (cssChecked.has(view))\n return;\n cssChecked.set(view, null);\n if (['normal', 'nowrap', 'pre-line'].indexOf(getComputedStyle(view.dom).whiteSpace) !== -1) {\n view.requiresGeckoHackNode = gecko;\n if (cssCheckWarned)\n return;\n console[\"warn\"](\"ProseMirror expects the CSS white-space property to be set, preferably to 'pre-wrap'. It is recommended to load style/prosemirror.css from the prosemirror-view package.\");\n cssCheckWarned = true;\n }\n}\nfunction rangeToSelectionRange(view, range) {\n let anchorNode = range.startContainer, anchorOffset = range.startOffset;\n let focusNode = range.endContainer, focusOffset = range.endOffset;\n let currentAnchor = view.domAtPos(view.state.selection.anchor);\n // Since such a range doesn't distinguish between anchor and head,\n // use a heuristic that flips it around if its end matches the\n // current anchor.\n if (isEquivalentPosition(currentAnchor.node, currentAnchor.offset, focusNode, focusOffset))\n [anchorNode, anchorOffset, focusNode, focusOffset] = [focusNode, focusOffset, anchorNode, anchorOffset];\n return { anchorNode, anchorOffset, focusNode, focusOffset };\n}\n// Used to work around a Safari Selection/shadow DOM bug\n// Based on https://github.com/codemirror/dev/issues/414 fix\nfunction safariShadowSelectionRange(view, selection) {\n if (selection.getComposedRanges) {\n let range = selection.getComposedRanges(view.root)[0];\n if (range)\n return rangeToSelectionRange(view, range);\n }\n let found;\n function read(event) {\n event.preventDefault();\n event.stopImmediatePropagation();\n found = event.getTargetRanges()[0];\n }\n // Because Safari (at least in 2018-2022) doesn't provide regular\n // access to the selection inside a shadowRoot, we have to perform a\n // ridiculous hack to get at it—using `execCommand` to trigger a\n // `beforeInput` event so that we can read the target range from the\n // event.\n view.dom.addEventListener(\"beforeinput\", read, true);\n document.execCommand(\"indent\");\n view.dom.removeEventListener(\"beforeinput\", read, true);\n return found ? rangeToSelectionRange(view, found) : null;\n}\nfunction blockParent(view, node) {\n for (let p = node.parentNode; p && p != view.dom; p = p.parentNode) {\n let desc = view.docView.nearestDesc(p, true);\n if (desc && desc.node.isBlock)\n return p;\n }\n return null;\n}\n// Kludge for a Safari bug where, on ending a composition in an\n// otherwise empty table cell, it randomly moves the composed text\n// into the table row around that cell, greatly confusing everything\n// (#188).\nfunction fixUpBadSafariComposition(view, addedNodes) {\n var _a;\n let { focusNode, focusOffset } = view.domSelectionRange();\n for (let node of addedNodes) {\n if (((_a = node.parentNode) === null || _a === void 0 ? void 0 : _a.nodeName) == \"TR\") {\n let nextCell = node.nextSibling;\n while (nextCell && (nextCell.nodeName != \"TD\" && nextCell.nodeName != \"TH\"))\n nextCell = nextCell.nextSibling;\n if (nextCell) {\n let parent = nextCell;\n for (;;) {\n let first = parent.firstChild;\n if (!first || first.nodeType != 1 || first.contentEditable == \"false\" ||\n /^(BR|IMG)$/.test(first.nodeName))\n break;\n parent = first;\n }\n parent.insertBefore(node, parent.firstChild);\n if (focusNode == node)\n view.domSelection().collapse(node, focusOffset);\n }\n else {\n node.parentNode.removeChild(node);\n }\n }\n }\n}\n\n// Note that all referencing and parsing is done with the\n// start-of-operation selection and document, since that's the one\n// that the DOM represents. If any changes came in in the meantime,\n// the modification is mapped over those before it is applied, in\n// readDOMChange.\nfunction parseBetween(view, from_, to_) {\n let { node: parent, fromOffset, toOffset, from, to } = view.docView.parseRange(from_, to_);\n let domSel = view.domSelectionRange();\n let find;\n let anchor = domSel.anchorNode;\n if (anchor && view.dom.contains(anchor.nodeType == 1 ? anchor : anchor.parentNode)) {\n find = [{ node: anchor, offset: domSel.anchorOffset }];\n if (!selectionCollapsed(domSel))\n find.push({ node: domSel.focusNode, offset: domSel.focusOffset });\n }\n // Work around issue in Chrome where backspacing sometimes replaces\n // the deleted content with a random BR node (issues #799, #831)\n if (chrome && view.input.lastKeyCode === 8) {\n for (let off = toOffset; off > fromOffset; off--) {\n let node = parent.childNodes[off - 1], desc = node.pmViewDesc;\n if (node.nodeName == \"BR\" && !desc) {\n toOffset = off;\n break;\n }\n if (!desc || desc.size)\n break;\n }\n }\n let startDoc = view.state.doc;\n let parser = view.someProp(\"domParser\") || prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.DOMParser.fromSchema(view.state.schema);\n let $from = startDoc.resolve(from);\n let sel = null, doc = parser.parse(parent, {\n topNode: $from.parent,\n topMatch: $from.parent.contentMatchAt($from.index()),\n topOpen: true,\n from: fromOffset,\n to: toOffset,\n preserveWhitespace: $from.parent.type.whitespace == \"pre\" ? \"full\" : true,\n findPositions: find,\n ruleFromNode,\n context: $from\n });\n if (find && find[0].pos != null) {\n let anchor = find[0].pos, head = find[1] && find[1].pos;\n if (head == null)\n head = anchor;\n sel = { anchor: anchor + from, head: head + from };\n }\n return { doc, sel, from, to };\n}\nfunction ruleFromNode(dom) {\n let desc = dom.pmViewDesc;\n if (desc) {\n return desc.parseRule();\n }\n else if (dom.nodeName == \"BR\" && dom.parentNode) {\n // Safari replaces the list item or table cell with a BR\n // directly in the list node (?!) if you delete the last\n // character in a list item or table cell (#708, #862)\n if (safari && /^(ul|ol)$/i.test(dom.parentNode.nodeName)) {\n let skip = document.createElement(\"div\");\n skip.appendChild(document.createElement(\"li\"));\n return { skip };\n }\n else if (dom.parentNode.lastChild == dom || safari && /^(tr|table)$/i.test(dom.parentNode.nodeName)) {\n return { ignore: true };\n }\n }\n else if (dom.nodeName == \"IMG\" && dom.getAttribute(\"mark-placeholder\")) {\n return { ignore: true };\n }\n return null;\n}\nconst isInline = /^(a|abbr|acronym|b|bd[io]|big|br|button|cite|code|data(list)?|del|dfn|em|i|img|ins|kbd|label|map|mark|meter|output|q|ruby|s|samp|small|span|strong|su[bp]|time|u|tt|var)$/i;\nfunction readDOMChange(view, from, to, typeOver, addedNodes) {\n let compositionID = view.input.compositionPendingChanges || (view.composing ? view.input.compositionID : 0);\n view.input.compositionPendingChanges = 0;\n if (from < 0) {\n let origin = view.input.lastSelectionTime > Date.now() - 50 ? view.input.lastSelectionOrigin : null;\n let newSel = selectionFromDOM(view, origin);\n if (newSel && !view.state.selection.eq(newSel)) {\n if (chrome && android &&\n view.input.lastKeyCode === 13 && Date.now() - 100 < view.input.lastKeyCodeTime &&\n view.someProp(\"handleKeyDown\", f => f(view, keyEvent(13, \"Enter\"))))\n return;\n let tr = view.state.tr.setSelection(newSel);\n if (origin == \"pointer\")\n tr.setMeta(\"pointer\", true);\n else if (origin == \"key\")\n tr.scrollIntoView();\n if (compositionID)\n tr.setMeta(\"composition\", compositionID);\n view.dispatch(tr);\n }\n return;\n }\n let $before = view.state.doc.resolve(from);\n let shared = $before.sharedDepth(to);\n from = $before.before(shared + 1);\n to = view.state.doc.resolve(to).after(shared + 1);\n let sel = view.state.selection;\n let parse = parseBetween(view, from, to);\n let doc = view.state.doc, compare = doc.slice(parse.from, parse.to);\n let preferredPos, preferredSide;\n // Prefer anchoring to end when Backspace is pressed\n if (view.input.lastKeyCode === 8 && Date.now() - 100 < view.input.lastKeyCodeTime) {\n preferredPos = view.state.selection.to;\n preferredSide = \"end\";\n }\n else {\n preferredPos = view.state.selection.from;\n preferredSide = \"start\";\n }\n view.input.lastKeyCode = null;\n let change = findDiff(compare.content, parse.doc.content, parse.from, preferredPos, preferredSide);\n if (change)\n view.input.domChangeCount++;\n if ((ios && view.input.lastIOSEnter > Date.now() - 225 || android) &&\n addedNodes.some(n => n.nodeType == 1 && !isInline.test(n.nodeName)) &&\n (!change || change.endA >= change.endB) &&\n view.someProp(\"handleKeyDown\", f => f(view, keyEvent(13, \"Enter\")))) {\n view.input.lastIOSEnter = 0;\n return;\n }\n if (!change) {\n if (typeOver && sel instanceof prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.TextSelection && !sel.empty && sel.$head.sameParent(sel.$anchor) &&\n !view.composing && !(parse.sel && parse.sel.anchor != parse.sel.head)) {\n change = { start: sel.from, endA: sel.to, endB: sel.to };\n }\n else {\n if (parse.sel) {\n let sel = resolveSelection(view, view.state.doc, parse.sel);\n if (sel && !sel.eq(view.state.selection)) {\n let tr = view.state.tr.setSelection(sel);\n if (compositionID)\n tr.setMeta(\"composition\", compositionID);\n view.dispatch(tr);\n }\n }\n return;\n }\n }\n // Handle the case where overwriting a selection by typing matches\n // the start or end of the selected content, creating a change\n // that's smaller than what was actually overwritten.\n if (view.state.selection.from < view.state.selection.to &&\n change.start == change.endB &&\n view.state.selection instanceof prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.TextSelection) {\n if (change.start > view.state.selection.from && change.start <= view.state.selection.from + 2 &&\n view.state.selection.from >= parse.from) {\n change.start = view.state.selection.from;\n }\n else if (change.endA < view.state.selection.to && change.endA >= view.state.selection.to - 2 &&\n view.state.selection.to <= parse.to) {\n change.endB += (view.state.selection.to - change.endA);\n change.endA = view.state.selection.to;\n }\n }\n // IE11 will insert a non-breaking space _ahead_ of the space after\n // the cursor space when adding a space before another space. When\n // that happened, adjust the change to cover the space instead.\n if (ie && ie_version <= 11 && change.endB == change.start + 1 &&\n change.endA == change.start && change.start > parse.from &&\n parse.doc.textBetween(change.start - parse.from - 1, change.start - parse.from + 1) == \" \\u00a0\") {\n change.start--;\n change.endA--;\n change.endB--;\n }\n let $from = parse.doc.resolveNoCache(change.start - parse.from);\n let $to = parse.doc.resolveNoCache(change.endB - parse.from);\n let $fromA = doc.resolve(change.start);\n let inlineChange = $from.sameParent($to) && $from.parent.inlineContent && $fromA.end() >= change.endA;\n // If this looks like the effect of pressing Enter (or was recorded\n // as being an iOS enter press), just dispatch an Enter key instead.\n if (((ios && view.input.lastIOSEnter > Date.now() - 225 &&\n (!inlineChange || addedNodes.some(n => n.nodeName == \"DIV\" || n.nodeName == \"P\"))) ||\n (!inlineChange && $from.pos < parse.doc.content.size &&\n (!$from.sameParent($to) || !$from.parent.inlineContent) &&\n $from.pos < $to.pos && !/\\S/.test(parse.doc.textBetween($from.pos, $to.pos, \"\", \"\")))) &&\n view.someProp(\"handleKeyDown\", f => f(view, keyEvent(13, \"Enter\")))) {\n view.input.lastIOSEnter = 0;\n return;\n }\n // Same for backspace\n if (view.state.selection.anchor > change.start &&\n looksLikeBackspace(doc, change.start, change.endA, $from, $to) &&\n view.someProp(\"handleKeyDown\", f => f(view, keyEvent(8, \"Backspace\")))) {\n if (android && chrome)\n view.domObserver.suppressSelectionUpdates(); // #820\n return;\n }\n // Chrome will occasionally, during composition, delete the\n // entire composition and then immediately insert it again. This is\n // used to detect that situation.\n if (chrome && change.endB == change.start)\n view.input.lastChromeDelete = Date.now();\n // This tries to detect Android virtual keyboard\n // enter-and-pick-suggestion action. That sometimes (see issue\n // #1059) first fires a DOM mutation, before moving the selection to\n // the newly created block. And then, because ProseMirror cleans up\n // the DOM selection, it gives up moving the selection entirely,\n // leaving the cursor in the wrong place. When that happens, we drop\n // the new paragraph from the initial change, and fire a simulated\n // enter key afterwards.\n if (android && !inlineChange && $from.start() != $to.start() && $to.parentOffset == 0 && $from.depth == $to.depth &&\n parse.sel && parse.sel.anchor == parse.sel.head && parse.sel.head == change.endA) {\n change.endB -= 2;\n $to = parse.doc.resolveNoCache(change.endB - parse.from);\n setTimeout(() => {\n view.someProp(\"handleKeyDown\", function (f) { return f(view, keyEvent(13, \"Enter\")); });\n }, 20);\n }\n let chFrom = change.start, chTo = change.endA;\n let mkTr = (base) => {\n let tr = base || view.state.tr.replace(chFrom, chTo, parse.doc.slice(change.start - parse.from, change.endB - parse.from));\n if (parse.sel) {\n let sel = resolveSelection(view, tr.doc, parse.sel);\n // Chrome will sometimes, during composition, report the\n // selection in the wrong place. If it looks like that is\n // happening, don't update the selection.\n // Edge just doesn't move the cursor forward when you start typing\n // in an empty block or between br nodes.\n if (sel && !(chrome && view.composing && sel.empty &&\n (change.start != change.endB || view.input.lastChromeDelete < Date.now() - 100) &&\n (sel.head == chFrom || sel.head == tr.mapping.map(chTo) - 1) ||\n ie && sel.empty && sel.head == chFrom))\n tr.setSelection(sel);\n }\n if (compositionID)\n tr.setMeta(\"composition\", compositionID);\n return tr.scrollIntoView();\n };\n let markChange;\n if (inlineChange) {\n if ($from.pos == $to.pos) { // Deletion\n // IE11 sometimes weirdly moves the DOM selection around after\n // backspacing out the first element in a textblock\n if (ie && ie_version <= 11 && $from.parentOffset == 0) {\n view.domObserver.suppressSelectionUpdates();\n setTimeout(() => selectionToDOM(view), 20);\n }\n let tr = mkTr(view.state.tr.delete(chFrom, chTo));\n let marks = doc.resolve(change.start).marksAcross(doc.resolve(change.endA));\n if (marks)\n tr.ensureMarks(marks);\n view.dispatch(tr);\n }\n else if ( // Adding or removing a mark\n change.endA == change.endB &&\n (markChange = isMarkChange($from.parent.content.cut($from.parentOffset, $to.parentOffset), $fromA.parent.content.cut($fromA.parentOffset, change.endA - $fromA.start())))) {\n let tr = mkTr(view.state.tr);\n if (markChange.type == \"add\")\n tr.addMark(chFrom, chTo, markChange.mark);\n else\n tr.removeMark(chFrom, chTo, markChange.mark);\n view.dispatch(tr);\n }\n else if ($from.parent.child($from.index()).isText && $from.index() == $to.index() - ($to.textOffset ? 0 : 1)) {\n // Both positions in the same text node -- simply insert text\n let text = $from.parent.textBetween($from.parentOffset, $to.parentOffset);\n let deflt = () => mkTr(view.state.tr.insertText(text, chFrom, chTo));\n if (!view.someProp(\"handleTextInput\", f => f(view, chFrom, chTo, text, deflt)))\n view.dispatch(deflt());\n }\n else {\n view.dispatch(mkTr());\n }\n }\n else {\n view.dispatch(mkTr());\n }\n}\nfunction resolveSelection(view, doc, parsedSel) {\n if (Math.max(parsedSel.anchor, parsedSel.head) > doc.content.size)\n return null;\n return selectionBetween(view, doc.resolve(parsedSel.anchor), doc.resolve(parsedSel.head));\n}\n// Given two same-length, non-empty fragments of inline content,\n// determine whether the first could be created from the second by\n// removing or adding a single mark type.\nfunction isMarkChange(cur, prev) {\n let curMarks = cur.firstChild.marks, prevMarks = prev.firstChild.marks;\n let added = curMarks, removed = prevMarks, type, mark, update;\n for (let i = 0; i < prevMarks.length; i++)\n added = prevMarks[i].removeFromSet(added);\n for (let i = 0; i < curMarks.length; i++)\n removed = curMarks[i].removeFromSet(removed);\n if (added.length == 1 && removed.length == 0) {\n mark = added[0];\n type = \"add\";\n update = (node) => node.mark(mark.addToSet(node.marks));\n }\n else if (added.length == 0 && removed.length == 1) {\n mark = removed[0];\n type = \"remove\";\n update = (node) => node.mark(mark.removeFromSet(node.marks));\n }\n else {\n return null;\n }\n let updated = [];\n for (let i = 0; i < prev.childCount; i++)\n updated.push(update(prev.child(i)));\n if (prosemirror_model__WEBPACK_IMPORTED_MODULE_0__.Fragment.from(updated).eq(cur))\n return { mark, type };\n}\nfunction looksLikeBackspace(old, start, end, $newStart, $newEnd) {\n if ( // The content must have shrunk\n end - start <= $newEnd.pos - $newStart.pos ||\n // newEnd must point directly at or after the end of the block that newStart points into\n skipClosingAndOpening($newStart, true, false) < $newEnd.pos)\n return false;\n let $start = old.resolve(start);\n // Handle the case where, rather than joining blocks, the change just removed an entire block\n if (!$newStart.parent.isTextblock) {\n let after = $start.nodeAfter;\n return after != null && end == start + after.nodeSize;\n }\n // Start must be at the end of a block\n if ($start.parentOffset < $start.parent.content.size || !$start.parent.isTextblock)\n return false;\n let $next = old.resolve(skipClosingAndOpening($start, true, true));\n // The next textblock must start before end and end near it\n if (!$next.parent.isTextblock || $next.pos > end ||\n skipClosingAndOpening($next, true, false) < end)\n return false;\n // The fragments after the join point must match\n return $newStart.parent.content.cut($newStart.parentOffset).eq($next.parent.content);\n}\nfunction skipClosingAndOpening($pos, fromEnd, mayOpen) {\n let depth = $pos.depth, end = fromEnd ? $pos.end() : $pos.pos;\n while (depth > 0 && (fromEnd || $pos.indexAfter(depth) == $pos.node(depth).childCount)) {\n depth--;\n end++;\n fromEnd = false;\n }\n if (mayOpen) {\n let next = $pos.node(depth).maybeChild($pos.indexAfter(depth));\n while (next && !next.isLeaf) {\n next = next.firstChild;\n end++;\n }\n }\n return end;\n}\nfunction findDiff(a, b, pos, preferredPos, preferredSide) {\n let start = a.findDiffStart(b, pos);\n if (start == null)\n return null;\n let { a: endA, b: endB } = a.findDiffEnd(b, pos + a.size, pos + b.size);\n if (preferredSide == \"end\") {\n let adjust = Math.max(0, start - Math.min(endA, endB));\n preferredPos -= endA + adjust - start;\n }\n if (endA < start && a.size < b.size) {\n let move = preferredPos <= start && preferredPos >= endA ? start - preferredPos : 0;\n start -= move;\n if (start && start < b.size && isSurrogatePair(b.textBetween(start - 1, start + 1)))\n start += move ? 1 : -1;\n endB = start + (endB - endA);\n endA = start;\n }\n else if (endB < start) {\n let move = preferredPos <= start && preferredPos >= endB ? start - preferredPos : 0;\n start -= move;\n if (start && start < a.size && isSurrogatePair(a.textBetween(start - 1, start + 1)))\n start += move ? 1 : -1;\n endA = start + (endA - endB);\n endB = start;\n }\n return { start, endA, endB };\n}\nfunction isSurrogatePair(str) {\n if (str.length != 2)\n return false;\n let a = str.charCodeAt(0), b = str.charCodeAt(1);\n return a >= 0xDC00 && a <= 0xDFFF && b >= 0xD800 && b <= 0xDBFF;\n}\n\n/**\n@internal\n*/\nconst __parseFromClipboard = parseFromClipboard;\n/**\n@internal\n*/\nconst __endComposition = endComposition;\n/**\nAn editor view manages the DOM structure that represents an\neditable document. Its state and behavior are determined by its\n[props](https://prosemirror.net/docs/ref/#view.DirectEditorProps).\n*/\nclass EditorView {\n /**\n Create a view. `place` may be a DOM node that the editor should\n be appended to, a function that will place it into the document,\n or an object whose `mount` property holds the node to use as the\n document container. If it is `null`, the editor will not be\n added to the document.\n */\n constructor(place, props) {\n this._root = null;\n /**\n @internal\n */\n this.focused = false;\n /**\n Kludge used to work around a Chrome bug @internal\n */\n this.trackWrites = null;\n this.mounted = false;\n /**\n @internal\n */\n this.markCursor = null;\n /**\n @internal\n */\n this.cursorWrapper = null;\n /**\n @internal\n */\n this.lastSelectedViewDesc = undefined;\n /**\n @internal\n */\n this.input = new InputState;\n this.prevDirectPlugins = [];\n this.pluginViews = [];\n /**\n Holds `true` when a hack node is needed in Firefox to prevent the\n [space is eaten issue](https://github.com/ProseMirror/prosemirror/issues/651)\n @internal\n */\n this.requiresGeckoHackNode = false;\n /**\n When editor content is being dragged, this object contains\n information about the dragged slice and whether it is being\n copied or moved. At any other time, it is null.\n */\n this.dragging = null;\n this._props = props;\n this.state = props.state;\n this.directPlugins = props.plugins || [];\n this.directPlugins.forEach(checkStateComponent);\n this.dispatch = this.dispatch.bind(this);\n this.dom = (place && place.mount) || document.createElement(\"div\");\n if (place) {\n if (place.appendChild)\n place.appendChild(this.dom);\n else if (typeof place == \"function\")\n place(this.dom);\n else if (place.mount)\n this.mounted = true;\n }\n this.editable = getEditable(this);\n updateCursorWrapper(this);\n this.nodeViews = buildNodeViews(this);\n this.docView = docViewDesc(this.state.doc, computeDocDeco(this), viewDecorations(this), this.dom, this);\n this.domObserver = new DOMObserver(this, (from, to, typeOver, added) => readDOMChange(this, from, to, typeOver, added));\n this.domObserver.start();\n initInput(this);\n this.updatePluginViews();\n }\n /**\n Holds `true` when a\n [composition](https://w3c.github.io/uievents/#events-compositionevents)\n is active.\n */\n get composing() { return this.input.composing; }\n /**\n The view's current [props](https://prosemirror.net/docs/ref/#view.EditorProps).\n */\n get props() {\n if (this._props.state != this.state) {\n let prev = this._props;\n this._props = {};\n for (let name in prev)\n this._props[name] = prev[name];\n this._props.state = this.state;\n }\n return this._props;\n }\n /**\n Update the view's props. Will immediately cause an update to\n the DOM.\n */\n update(props) {\n if (props.handleDOMEvents != this._props.handleDOMEvents)\n ensureListeners(this);\n let prevProps = this._props;\n this._props = props;\n if (props.plugins) {\n props.plugins.forEach(checkStateComponent);\n this.directPlugins = props.plugins;\n }\n this.updateStateInner(props.state, prevProps);\n }\n /**\n Update the view by updating existing props object with the object\n given as argument. Equivalent to `view.update(Object.assign({},\n view.props, props))`.\n */\n setProps(props) {\n let updated = {};\n for (let name in this._props)\n updated[name] = this._props[name];\n updated.state = this.state;\n for (let name in props)\n updated[name] = props[name];\n this.update(updated);\n }\n /**\n Update the editor's `state` prop, without touching any of the\n other props.\n */\n updateState(state) {\n this.updateStateInner(state, this._props);\n }\n updateStateInner(state, prevProps) {\n var _a;\n let prev = this.state, redraw = false, updateSel = false;\n // When stored marks are added, stop composition, so that they can\n // be displayed.\n if (state.storedMarks && this.composing) {\n clearComposition(this);\n updateSel = true;\n }\n this.state = state;\n let pluginsChanged = prev.plugins != state.plugins || this._props.plugins != prevProps.plugins;\n if (pluginsChanged || this._props.plugins != prevProps.plugins || this._props.nodeViews != prevProps.nodeViews) {\n let nodeViews = buildNodeViews(this);\n if (changedNodeViews(nodeViews, this.nodeViews)) {\n this.nodeViews = nodeViews;\n redraw = true;\n }\n }\n if (pluginsChanged || prevProps.handleDOMEvents != this._props.handleDOMEvents) {\n ensureListeners(this);\n }\n this.editable = getEditable(this);\n updateCursorWrapper(this);\n let innerDeco = viewDecorations(this), outerDeco = computeDocDeco(this);\n let scroll = prev.plugins != state.plugins && !prev.doc.eq(state.doc) ? \"reset\"\n : state.scrollToSelection > prev.scrollToSelection ? \"to selection\" : \"preserve\";\n let updateDoc = redraw || !this.docView.matchesNode(state.doc, outerDeco, innerDeco);\n if (updateDoc || !state.selection.eq(prev.selection))\n updateSel = true;\n let oldScrollPos = scroll == \"preserve\" && updateSel && this.dom.style.overflowAnchor == null && storeScrollPos(this);\n if (updateSel) {\n this.domObserver.stop();\n // Work around an issue in Chrome, IE, and Edge where changing\n // the DOM around an active selection puts it into a broken\n // state where the thing the user sees differs from the\n // selection reported by the Selection object (#710, #973,\n // #1011, #1013, #1035).\n let forceSelUpdate = updateDoc && (ie || chrome) && !this.composing &&\n !prev.selection.empty && !state.selection.empty && selectionContextChanged(prev.selection, state.selection);\n if (updateDoc) {\n // If the node that the selection points into is written to,\n // Chrome sometimes starts misreporting the selection, so this\n // tracks that and forces a selection reset when our update\n // did write to the node.\n let chromeKludge = chrome ? (this.trackWrites = this.domSelectionRange().focusNode) : null;\n if (this.composing)\n this.input.compositionNode = findCompositionNode(this);\n if (redraw || !this.docView.update(state.doc, outerDeco, innerDeco, this)) {\n this.docView.updateOuterDeco(outerDeco);\n this.docView.destroy();\n this.docView = docViewDesc(state.doc, outerDeco, innerDeco, this.dom, this);\n }\n if (chromeKludge && (!this.trackWrites || !this.dom.contains(this.trackWrites)))\n forceSelUpdate = true;\n }\n // Work around for an issue where an update arriving right between\n // a DOM selection change and the \"selectionchange\" event for it\n // can cause a spurious DOM selection update, disrupting mouse\n // drag selection.\n if (forceSelUpdate ||\n !(this.input.mouseDown && this.domObserver.currentSelection.eq(this.domSelectionRange()) &&\n anchorInRightPlace(this))) {\n selectionToDOM(this, forceSelUpdate);\n }\n else {\n syncNodeSelection(this, state.selection);\n this.domObserver.setCurSelection();\n }\n this.domObserver.start();\n }\n this.updatePluginViews(prev);\n if (((_a = this.dragging) === null || _a === void 0 ? void 0 : _a.node) && !prev.doc.eq(state.doc))\n this.updateDraggedNode(this.dragging, prev);\n if (scroll == \"reset\") {\n this.dom.scrollTop = 0;\n }\n else if (scroll == \"to selection\") {\n this.scrollToSelection();\n }\n else if (oldScrollPos) {\n resetScrollPos(oldScrollPos);\n }\n }\n /**\n @internal\n */\n scrollToSelection() {\n let startDOM = this.domSelectionRange().focusNode;\n if (!startDOM || !this.dom.contains(startDOM.nodeType == 1 ? startDOM : startDOM.parentNode)) ;\n else if (this.someProp(\"handleScrollToSelection\", f => f(this))) ;\n else if (this.state.selection instanceof prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.NodeSelection) {\n let target = this.docView.domAfterPos(this.state.selection.from);\n if (target.nodeType == 1)\n scrollRectIntoView(this, target.getBoundingClientRect(), startDOM);\n }\n else {\n scrollRectIntoView(this, this.coordsAtPos(this.state.selection.head, 1), startDOM);\n }\n }\n destroyPluginViews() {\n let view;\n while (view = this.pluginViews.pop())\n if (view.destroy)\n view.destroy();\n }\n updatePluginViews(prevState) {\n if (!prevState || prevState.plugins != this.state.plugins || this.directPlugins != this.prevDirectPlugins) {\n this.prevDirectPlugins = this.directPlugins;\n this.destroyPluginViews();\n for (let i = 0; i < this.directPlugins.length; i++) {\n let plugin = this.directPlugins[i];\n if (plugin.spec.view)\n this.pluginViews.push(plugin.spec.view(this));\n }\n for (let i = 0; i < this.state.plugins.length; i++) {\n let plugin = this.state.plugins[i];\n if (plugin.spec.view)\n this.pluginViews.push(plugin.spec.view(this));\n }\n }\n else {\n for (let i = 0; i < this.pluginViews.length; i++) {\n let pluginView = this.pluginViews[i];\n if (pluginView.update)\n pluginView.update(this, prevState);\n }\n }\n }\n updateDraggedNode(dragging, prev) {\n let sel = dragging.node, found = -1;\n if (this.state.doc.nodeAt(sel.from) == sel.node) {\n found = sel.from;\n }\n else {\n let movedPos = sel.from + (this.state.doc.content.size - prev.doc.content.size);\n let moved = movedPos > 0 && this.state.doc.nodeAt(movedPos);\n if (moved == sel.node)\n found = movedPos;\n }\n this.dragging = new Dragging(dragging.slice, dragging.move, found < 0 ? undefined : prosemirror_state__WEBPACK_IMPORTED_MODULE_1__.NodeSelection.create(this.state.doc, found));\n }\n someProp(propName, f) {\n let prop = this._props && this._props[propName], value;\n if (prop != null && (value = f ? f(prop) : prop))\n return value;\n for (let i = 0; i < this.directPlugins.length; i++) {\n let prop = this.directPlugins[i].props[propName];\n if (prop != null && (value = f ? f(prop) : prop))\n return value;\n }\n let plugins = this.state.plugins;\n if (plugins)\n for (let i = 0; i < plugins.length; i++) {\n let prop = plugins[i].props[propName];\n if (prop != null && (value = f ? f(prop) : prop))\n return value;\n }\n }\n /**\n Query whether the view has focus.\n */\n hasFocus() {\n // Work around IE not handling focus correctly if resize handles are shown.\n // If the cursor is inside an element with resize handles, activeElement\n // will be that element instead of this.dom.\n if (ie) {\n // If activeElement is within this.dom, and there are no other elements\n // setting `contenteditable` to false in between, treat it as focused.\n let node = this.root.activeElement;\n if (node == this.dom)\n return true;\n if (!node || !this.dom.contains(node))\n return false;\n while (node && this.dom != node && this.dom.contains(node)) {\n if (node.contentEditable == 'false')\n return false;\n node = node.parentElement;\n }\n return true;\n }\n return this.root.activeElement == this.dom;\n }\n /**\n Focus the editor.\n */\n focus() {\n this.domObserver.stop();\n if (this.editable)\n focusPreventScroll(this.dom);\n selectionToDOM(this);\n this.domObserver.start();\n }\n /**\n Get the document root in which the editor exists. This will\n usually be the top-level `document`, but might be a [shadow\n DOM](https://developer.mozilla.org/en-US/docs/Web/Web_Components/Shadow_DOM)\n root if the editor is inside one.\n */\n get root() {\n let cached = this._root;\n if (cached == null)\n for (let search = this.dom.parentNode; search; search = search.parentNode) {\n if (search.nodeType == 9 || (search.nodeType == 11 && search.host)) {\n if (!search.getSelection)\n Object.getPrototypeOf(search).getSelection = () => search.ownerDocument.getSelection();\n return this._root = search;\n }\n }\n return cached || document;\n }\n /**\n When an existing editor view is moved to a new document or\n shadow tree, call this to make it recompute its root.\n */\n updateRoot() {\n this._root = null;\n }\n /**\n Given a pair of viewport coordinates, return the document\n position that corresponds to them. May return null if the given\n coordinates aren't inside of the editor. When an object is\n returned, its `pos` property is the position nearest to the\n coordinates, and its `inside` property holds the position of the\n inner node that the position falls inside of, or -1 if it is at\n the top level, not in any node.\n */\n posAtCoords(coords) {\n return posAtCoords(this, coords);\n }\n /**\n Returns the viewport rectangle at a given document position.\n `left` and `right` will be the same number, as this returns a\n flat cursor-ish rectangle. If the position is between two things\n that aren't directly adjacent, `side` determines which element\n is used. When < 0, the element before the position is used,\n otherwise the element after.\n */\n coordsAtPos(pos, side = 1) {\n return coordsAtPos(this, pos, side);\n }\n /**\n Find the DOM position that corresponds to the given document\n position. When `side` is negative, find the position as close as\n possible to the content before the position. When positive,\n prefer positions close to the content after the position. When\n zero, prefer as shallow a position as possible.\n \n Note that you should **not** mutate the editor's internal DOM,\n only inspect it (and even that is usually not necessary).\n */\n domAtPos(pos, side = 0) {\n return this.docView.domFromPos(pos, side);\n }\n /**\n Find the DOM node that represents the document node after the\n given position. May return `null` when the position doesn't point\n in front of a node or if the node is inside an opaque node view.\n \n This is intended to be able to call things like\n `getBoundingClientRect` on that DOM node. Do **not** mutate the\n editor DOM directly, or add styling this way, since that will be\n immediately overriden by the editor as it redraws the node.\n */\n nodeDOM(pos) {\n let desc = this.docView.descAt(pos);\n return desc ? desc.nodeDOM : null;\n }\n /**\n Find the document position that corresponds to a given DOM\n position. (Whenever possible, it is preferable to inspect the\n document structure directly, rather than poking around in the\n DOM, but sometimes—for example when interpreting an event\n target—you don't have a choice.)\n \n The `bias` parameter can be used to influence which side of a DOM\n node to use when the position is inside a leaf node.\n */\n posAtDOM(node, offset, bias = -1) {\n let pos = this.docView.posFromDOM(node, offset, bias);\n if (pos == null)\n throw new RangeError(\"DOM position not inside the editor\");\n return pos;\n }\n /**\n Find out whether the selection is at the end of a textblock when\n moving in a given direction. When, for example, given `\"left\"`,\n it will return true if moving left from the current cursor\n position would leave that position's parent textblock. Will apply\n to the view's current state by default, but it is possible to\n pass a different state.\n */\n endOfTextblock(dir, state) {\n return endOfTextblock(this, state || this.state, dir);\n }\n /**\n Run the editor's paste logic with the given HTML string. The\n `event`, if given, will be passed to the\n [`handlePaste`](https://prosemirror.net/docs/ref/#view.EditorProps.handlePaste) hook.\n */\n pasteHTML(html, event) {\n return doPaste(this, \"\", html, false, event || new ClipboardEvent(\"paste\"));\n }\n /**\n Run the editor's paste logic with the given plain-text input.\n */\n pasteText(text, event) {\n return doPaste(this, text, null, true, event || new ClipboardEvent(\"paste\"));\n }\n /**\n Serialize the given slice as it would be if it was copied from\n this editor. Returns a DOM element that contains a\n representation of the slice as its children, a textual\n representation, and the transformed slice (which can be\n different from the given input due to hooks like\n [`transformCopied`](https://prosemirror.net/docs/ref/#view.EditorProps.transformCopied)).\n */\n serializeForClipboard(slice) {\n return serializeForClipboard(this, slice);\n }\n /**\n Removes the editor from the DOM and destroys all [node\n views](https://prosemirror.net/docs/ref/#view.NodeView).\n */\n destroy() {\n if (!this.docView)\n return;\n destroyInput(this);\n this.destroyPluginViews();\n if (this.mounted) {\n this.docView.update(this.state.doc, [], viewDecorations(this), this);\n this.dom.textContent = \"\";\n }\n else if (this.dom.parentNode) {\n this.dom.parentNode.removeChild(this.dom);\n }\n this.docView.destroy();\n this.docView = null;\n clearReusedRange();\n }\n /**\n This is true when the view has been\n [destroyed](https://prosemirror.net/docs/ref/#view.EditorView.destroy) (and thus should not be\n used anymore).\n */\n get isDestroyed() {\n return this.docView == null;\n }\n /**\n Used for testing.\n */\n dispatchEvent(event) {\n return dispatchEvent(this, event);\n }\n /**\n @internal\n */\n domSelectionRange() {\n let sel = this.domSelection();\n if (!sel)\n return { focusNode: null, focusOffset: 0, anchorNode: null, anchorOffset: 0 };\n return safari && this.root.nodeType === 11 &&\n deepActiveElement(this.dom.ownerDocument) == this.dom && safariShadowSelectionRange(this, sel) || sel;\n }\n /**\n @internal\n */\n domSelection() {\n return this.root.getSelection();\n }\n}\nEditorView.prototype.dispatch = function (tr) {\n let dispatchTransaction = this._props.dispatchTransaction;\n if (dispatchTransaction)\n dispatchTransaction.call(this, tr);\n else\n this.updateState(this.state.apply(tr));\n};\nfunction computeDocDeco(view) {\n let attrs = Object.create(null);\n attrs.class = \"ProseMirror\";\n attrs.contenteditable = String(view.editable);\n view.someProp(\"attributes\", value => {\n if (typeof value == \"function\")\n value = value(view.state);\n if (value)\n for (let attr in value) {\n if (attr == \"class\")\n attrs.class += \" \" + value[attr];\n else if (attr == \"style\")\n attrs.style = (attrs.style ? attrs.style + \";\" : \"\") + value[attr];\n else if (!attrs[attr] && attr != \"contenteditable\" && attr != \"nodeName\")\n attrs[attr] = String(value[attr]);\n }\n });\n if (!attrs.translate)\n attrs.translate = \"no\";\n return [Decoration.node(0, view.state.doc.content.size, attrs)];\n}\nfunction updateCursorWrapper(view) {\n if (view.markCursor) {\n let dom = document.createElement(\"img\");\n dom.className = \"ProseMirror-separator\";\n dom.setAttribute(\"mark-placeholder\", \"true\");\n dom.setAttribute(\"alt\", \"\");\n view.cursorWrapper = { dom, deco: Decoration.widget(view.state.selection.from, dom, { raw: true, marks: view.markCursor }) };\n 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RangeError(\"Plugins passed directly to the view must not have a state component\");\n}\n\n\n//# sourceURL=[module]\n//# 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{ TextSelection, NodeSelection, AllSelection, Selection } from 'prosemirror-state';\nimport { DOMSerializer, Fragment, Mark, Slice, DOMParser } from 'prosemirror-model';\nimport { dropPoint } from 'prosemirror-transform';\n\nconst domIndex = function (node) {\n    for (var index = 0;; index++) {\n        node = node.previousSibling;\n        if (!node)\n            return index;\n    }\n};\nconst parentNode = function (node) {\n    let parent = node.assignedSlot || node.parentNode;\n    return parent && parent.nodeType == 11 ? parent.host : parent;\n};\nlet reusedRange = null;\n// Note that this will always return the same range, because DOM range\n// objects are every expensive, and keep slowing down subsequent DOM\n// updates, for some reason.\nconst textRange = function (node, from, to) {\n    let range = reusedRange || (reusedRange = document.createRange());\n    range.setEnd(node, to == null ? node.nodeValue.length : to);\n    range.setStart(node, from || 0);\n    return range;\n};\nconst clearReusedRange = function () {\n    reusedRange = null;\n};\n// Scans forward and backward through DOM positions equivalent to the\n// given one to see if the two are in the same place (i.e. after a\n// text node vs at the end of that text node)\nconst isEquivalentPosition = function (node, off, targetNode, targetOff) {\n    return targetNode && (scanFor(node, off, targetNode, targetOff, -1) ||\n        scanFor(node, off, targetNode, targetOff, 1));\n};\nconst atomElements = /^(img|br|input|textarea|hr)$/i;\nfunction scanFor(node, off, targetNode, targetOff, dir) {\n    var _a;\n    for (;;) {\n        if (node == targetNode && off == targetOff)\n            return true;\n        if (off == (dir < 0 ? 0 : nodeSize(node))) {\n            let parent = node.parentNode;\n            if (!parent || parent.nodeType != 1 || hasBlockDesc(node) || atomElements.test(node.nodeName) ||\n                node.contentEditable == \"false\")\n                return false;\n            off = domIndex(node) + (dir < 0 ? 0 : 1);\n            node = parent;\n        }\n        else if (node.nodeType == 1) {\n            let child = node.childNodes[off + (dir < 0 ? -1 : 0)];\n            if (child.nodeType == 1 && child.contentEditable == \"false\") {\n                if ((_a = child.pmViewDesc) === null || _a === void 0 ? void 0 : _a.ignoreForSelection)\n                    off += dir;\n                else\n                    return false;\n            }\n            else {\n                node = child;\n                off = dir < 0 ? nodeSize(node) : 0;\n            }\n        }\n        else {\n            return false;\n        }\n    }\n}\nfunction nodeSize(node) {\n    return node.nodeType == 3 ? node.nodeValue.length : node.childNodes.length;\n}\nfunction textNodeBefore$1(node, offset) {\n    for (;;) {\n        if (node.nodeType == 3 && offset)\n            return node;\n        if (node.nodeType == 1 && offset > 0) {\n            if (node.contentEditable == \"false\")\n                return null;\n            node = node.childNodes[offset - 1];\n            offset = nodeSize(node);\n        }\n        else if (node.parentNode && !hasBlockDesc(node)) {\n            offset = domIndex(node);\n            node = node.parentNode;\n        }\n        else {\n            return null;\n        }\n    }\n}\nfunction textNodeAfter$1(node, offset) {\n    for (;;) {\n        if (node.nodeType == 3 && offset < node.nodeValue.length)\n            return node;\n        if (node.nodeType == 1 && offset < node.childNodes.length) {\n            if (node.contentEditable == \"false\")\n                return null;\n            node = node.childNodes[offset];\n            offset = 0;\n        }\n        else if (node.parentNode && !hasBlockDesc(node)) {\n            offset = domIndex(node) + 1;\n            node = node.parentNode;\n        }\n        else {\n            return null;\n        }\n    }\n}\nfunction isOnEdge(node, offset, parent) {\n    for (let atStart = offset == 0, atEnd = offset == nodeSize(node); atStart || atEnd;) {\n        if (node == parent)\n            return true;\n        let index = domIndex(node);\n        node = node.parentNode;\n        if (!node)\n            return false;\n        atStart = atStart && index == 0;\n        atEnd = atEnd && index == nodeSize(node);\n    }\n}\nfunction hasBlockDesc(dom) {\n    let desc;\n    for (let cur = dom; cur; cur = cur.parentNode)\n        if (desc = cur.pmViewDesc)\n            break;\n    return desc && desc.node && desc.node.isBlock && (desc.dom == dom || desc.contentDOM == dom);\n}\n// Work around Chrome issue https://bugs.chromium.org/p/chromium/issues/detail?id=447523\n// (isCollapsed inappropriately returns true in shadow dom)\nconst selectionCollapsed = function (domSel) {\n    return domSel.focusNode && isEquivalentPosition(domSel.focusNode, domSel.focusOffset, domSel.anchorNode, domSel.anchorOffset);\n};\nfunction keyEvent(keyCode, key) {\n    let event = document.createEvent(\"Event\");\n    event.initEvent(\"keydown\", true, true);\n    event.keyCode = keyCode;\n    event.key = event.code = key;\n    return event;\n}\nfunction deepActiveElement(doc) {\n    let elt = doc.activeElement;\n    while (elt && elt.shadowRoot)\n        elt = elt.shadowRoot.activeElement;\n    return elt;\n}\nfunction caretFromPoint(doc, x, y) {\n    if (doc.caretPositionFromPoint) {\n        try { // Firefox throws for this call in hard-to-predict circumstances (#994)\n            let pos = doc.caretPositionFromPoint(x, y);\n            // Clip the offset, because Chrome will return a text offset\n            // into <input> nodes, which can't be treated as a regular DOM\n            // offset\n            if (pos)\n                return { node: pos.offsetNode, offset: Math.min(nodeSize(pos.offsetNode), pos.offset) };\n        }\n        catch (_) { }\n    }\n    if (doc.caretRangeFromPoint) {\n        let range = doc.caretRangeFromPoint(x, y);\n        if (range)\n            return { node: range.startContainer, offset: Math.min(nodeSize(range.startContainer), range.startOffset) };\n    }\n}\n\nconst nav = typeof navigator != \"undefined\" ? navigator : null;\nconst doc = typeof document != \"undefined\" ? document : null;\nconst agent = (nav && nav.userAgent) || \"\";\nconst ie_edge = /Edge\\/(\\d+)/.exec(agent);\nconst ie_upto10 = /MSIE \\d/.exec(agent);\nconst ie_11up = /Trident\\/(?:[7-9]|\\d{2,})\\..*rv:(\\d+)/.exec(agent);\nconst ie = !!(ie_upto10 || ie_11up || ie_edge);\nconst ie_version = ie_upto10 ? document.documentMode : ie_11up ? +ie_11up[1] : ie_edge ? +ie_edge[1] : 0;\nconst gecko = !ie && /gecko\\/(\\d+)/i.test(agent);\ngecko && +(/Firefox\\/(\\d+)/.exec(agent) || [0, 0])[1];\nconst _chrome = !ie && /Chrome\\/(\\d+)/.exec(agent);\nconst chrome = !!_chrome;\nconst chrome_version = _chrome ? +_chrome[1] : 0;\nconst safari = !ie && !!nav && /Apple Computer/.test(nav.vendor);\n// Is true for both iOS and iPadOS for convenience\nconst ios = safari && (/Mobile\\/\\w+/.test(agent) || !!nav && nav.maxTouchPoints > 2);\nconst mac = ios || (nav ? /Mac/.test(nav.platform) : false);\nconst windows = nav ? /Win/.test(nav.platform) : false;\nconst android = /Android \\d/.test(agent);\nconst webkit = !!doc && \"webkitFontSmoothing\" in doc.documentElement.style;\nconst webkit_version = webkit ? +(/\\bAppleWebKit\\/(\\d+)/.exec(navigator.userAgent) || [0, 0])[1] : 0;\n\nfunction windowRect(doc) {\n    let vp = doc.defaultView && doc.defaultView.visualViewport;\n    if (vp)\n        return {\n            left: 0, right: vp.width,\n            top: 0, bottom: vp.height\n        };\n    return { left: 0, right: doc.documentElement.clientWidth,\n        top: 0, bottom: doc.documentElement.clientHeight };\n}\nfunction getSide(value, side) {\n    return typeof value == \"number\" ? value : value[side];\n}\nfunction clientRect(node) {\n    let rect = node.getBoundingClientRect();\n    // Adjust for elements with style \"transform: scale()\"\n    let scaleX = (rect.width / node.offsetWidth) || 1;\n    let scaleY = (rect.height / node.offsetHeight) || 1;\n    // Make sure scrollbar width isn't included in the rectangle\n    return { left: rect.left, right: rect.left + node.clientWidth * scaleX,\n        top: rect.top, bottom: rect.top + node.clientHeight * scaleY };\n}\nfunction scrollRectIntoView(view, rect, startDOM) {\n    let scrollThreshold = view.someProp(\"scrollThreshold\") || 0, scrollMargin = view.someProp(\"scrollMargin\") || 5;\n    let doc = view.dom.ownerDocument;\n    for (let parent = startDOM || view.dom;;) {\n        if (!parent)\n            break;\n        if (parent.nodeType != 1) {\n            parent = parentNode(parent);\n            continue;\n        }\n        let elt = parent;\n        let atTop = elt == doc.body;\n        let bounding = atTop ? windowRect(doc) : clientRect(elt);\n        let moveX = 0, moveY = 0;\n        if (rect.top < bounding.top + getSide(scrollThreshold, \"top\"))\n            moveY = -(bounding.top - rect.top + getSide(scrollMargin, \"top\"));\n        else if (rect.bottom > bounding.bottom - getSide(scrollThreshold, \"bottom\"))\n            moveY = rect.bottom - rect.top > bounding.bottom - bounding.top\n                ? rect.top + getSide(scrollMargin, \"top\") - bounding.top\n                : rect.bottom - bounding.bottom + getSide(scrollMargin, \"bottom\");\n        if (rect.left < bounding.left + getSide(scrollThreshold, \"left\"))\n            moveX = -(bounding.left - rect.left + getSide(scrollMargin, \"left\"));\n        else if (rect.right > bounding.right - getSide(scrollThreshold, \"right\"))\n            moveX = rect.right - bounding.right + getSide(scrollMargin, \"right\");\n        if (moveX || moveY) {\n            if (atTop) {\n                doc.defaultView.scrollBy(moveX, moveY);\n            }\n            else {\n                let startX = elt.scrollLeft, startY = elt.scrollTop;\n                if (moveY)\n                    elt.scrollTop += moveY;\n                if (moveX)\n                    elt.scrollLeft += moveX;\n                let dX = elt.scrollLeft - startX, dY = elt.scrollTop - startY;\n                rect = { left: rect.left - dX, top: rect.top - dY, right: rect.right - dX, bottom: rect.bottom - dY };\n            }\n        }\n        let pos = atTop ? \"fixed\" : getComputedStyle(parent).position;\n        if (/^(fixed|sticky)$/.test(pos))\n            break;\n        parent = pos == \"absolute\" ? parent.offsetParent : parentNode(parent);\n    }\n}\n// Store the scroll position of the editor's parent nodes, along with\n// the top position of an element near the top of the editor, which\n// will be used to make sure the visible viewport remains stable even\n// when the size of the content above changes.\nfunction storeScrollPos(view) {\n    let rect = view.dom.getBoundingClientRect(), startY = Math.max(0, rect.top);\n    let refDOM, refTop;\n    for (let x = (rect.left + rect.right) / 2, y = startY + 1; y < Math.min(innerHeight, rect.bottom); y += 5) {\n        let dom = view.root.elementFromPoint(x, y);\n        if (!dom || dom == view.dom || !view.dom.contains(dom))\n            continue;\n        let localRect = dom.getBoundingClientRect();\n        if (localRect.top >= startY - 20) {\n            refDOM = dom;\n            refTop = localRect.top;\n            break;\n        }\n    }\n    return { refDOM: refDOM, refTop: refTop, stack: scrollStack(view.dom) };\n}\nfunction scrollStack(dom) {\n    let stack = [], doc = dom.ownerDocument;\n    for (let cur = dom; cur; cur = parentNode(cur)) {\n        stack.push({ dom: cur, top: cur.scrollTop, left: cur.scrollLeft });\n        if (dom == doc)\n            break;\n    }\n    return stack;\n}\n// Reset the scroll position of the editor's parent nodes to that what\n// it was before, when storeScrollPos was called.\nfunction resetScrollPos({ refDOM, refTop, stack }) {\n    let newRefTop = refDOM ? refDOM.getBoundingClientRect().top : 0;\n    restoreScrollStack(stack, newRefTop == 0 ? 0 : newRefTop - refTop);\n}\nfunction restoreScrollStack(stack, dTop) {\n    for (let i = 0; i < stack.length; i++) {\n        let { dom, top, left } = stack[i];\n        if (dom.scrollTop != top + dTop)\n            dom.scrollTop = top + dTop;\n        if (dom.scrollLeft != left)\n            dom.scrollLeft = left;\n    }\n}\nlet preventScrollSupported = null;\n// Feature-detects support for .focus({preventScroll: true}), and uses\n// a fallback kludge when not supported.\nfunction focusPreventScroll(dom) {\n    if (dom.setActive)\n        return dom.setActive(); // in IE\n    if (preventScrollSupported)\n        return dom.focus(preventScrollSupported);\n    let stored = scrollStack(dom);\n    dom.focus(preventScrollSupported == null ? {\n        get preventScroll() {\n            preventScrollSupported = { preventScroll: true };\n            return true;\n        }\n    } : undefined);\n    if (!preventScrollSupported) {\n        preventScrollSupported = false;\n        restoreScrollStack(stored, 0);\n    }\n}\nfunction findOffsetInNode(node, coords) {\n    let closest, dxClosest = 2e8, coordsClosest, offset = 0;\n    let rowBot = coords.top, rowTop = coords.top;\n    let firstBelow, coordsBelow;\n    for (let child = node.firstChild, childIndex = 0; child; child = child.nextSibling, childIndex++) {\n        let rects;\n        if (child.nodeType == 1)\n            rects = child.getClientRects();\n        else if (child.nodeType == 3)\n            rects = textRange(child).getClientRects();\n        else\n            continue;\n        for (let i = 0; i < rects.length; i++) {\n            let rect = rects[i];\n            if (rect.top <= rowBot && rect.bottom >= rowTop) {\n                rowBot = Math.max(rect.bottom, rowBot);\n                rowTop = Math.min(rect.top, rowTop);\n                let dx = rect.left > coords.left ? rect.left - coords.left\n                    : rect.right < coords.left ? coords.left - rect.right : 0;\n                if (dx < dxClosest) {\n                    closest = child;\n                    dxClosest = dx;\n                    coordsClosest = dx && closest.nodeType == 3 ? {\n                        left: rect.right < coords.left ? rect.right : rect.left,\n                        top: coords.top\n                    } : coords;\n                    if (child.nodeType == 1 && dx)\n                        offset = childIndex + (coords.left >= (rect.left + rect.right) / 2 ? 1 : 0);\n                    continue;\n                }\n            }\n            else if (rect.top > coords.top && !firstBelow && rect.left <= coords.left && rect.right >= coords.left) {\n                firstBelow = child;\n                coordsBelow = { left: Math.max(rect.left, Math.min(rect.right, coords.left)), top: rect.top };\n            }\n            if (!closest && (coords.left >= rect.right && coords.top >= rect.top ||\n                coords.left >= rect.left && coords.top >= rect.bottom))\n                offset = childIndex + 1;\n        }\n    }\n    if (!closest && firstBelow) {\n        closest = firstBelow;\n        coordsClosest = coordsBelow;\n        dxClosest = 0;\n    }\n    if (closest && closest.nodeType == 3)\n        return findOffsetInText(closest, coordsClosest);\n    if (!closest || (dxClosest && closest.nodeType == 1))\n        return { node, offset };\n    return findOffsetInNode(closest, coordsClosest);\n}\nfunction findOffsetInText(node, coords) {\n    let len = node.nodeValue.length;\n    let range = document.createRange(), result;\n    for (let i = 0; i < len; i++) {\n        range.setEnd(node, i + 1);\n        range.setStart(node, i);\n        let rect = singleRect(range, 1);\n        if (rect.top == rect.bottom)\n            continue;\n        if (inRect(coords, rect)) {\n            result = { node, offset: i + (coords.left >= (rect.left + rect.right) / 2 ? 1 : 0) };\n            break;\n        }\n    }\n    range.detach();\n    return result || { node, offset: 0 };\n}\nfunction inRect(coords, rect) {\n    return coords.left >= rect.left - 1 && coords.left <= rect.right + 1 &&\n        coords.top >= rect.top - 1 && coords.top <= rect.bottom + 1;\n}\nfunction targetKludge(dom, coords) {\n    let parent = dom.parentNode;\n    if (parent && /^li$/i.test(parent.nodeName) && coords.left < dom.getBoundingClientRect().left)\n        return parent;\n    return dom;\n}\nfunction posFromElement(view, elt, coords) {\n    let { node, offset } = findOffsetInNode(elt, coords), bias = -1;\n    if (node.nodeType == 1 && !node.firstChild) {\n        let rect = node.getBoundingClientRect();\n        bias = rect.left != rect.right && coords.left > (rect.left + rect.right) / 2 ? 1 : -1;\n    }\n    return view.docView.posFromDOM(node, offset, bias);\n}\nfunction posFromCaret(view, node, offset, coords) {\n    // Browser (in caretPosition/RangeFromPoint) will agressively\n    // normalize towards nearby inline nodes. Since we are interested in\n    // positions between block nodes too, we first walk up the hierarchy\n    // of nodes to see if there are block nodes that the coordinates\n    // fall outside of. If so, we take the position before/after that\n    // block. If not, we call `posFromDOM` on the raw node/offset.\n    let outsideBlock = -1;\n    for (let cur = node, sawBlock = false;;) {\n        if (cur == view.dom)\n            break;\n        let desc = view.docView.nearestDesc(cur, true), rect;\n        if (!desc)\n            return null;\n        if (desc.dom.nodeType == 1 && (desc.node.isBlock && desc.parent || !desc.contentDOM) &&\n            // Ignore elements with zero-size bounding rectangles\n            ((rect = desc.dom.getBoundingClientRect()).width || rect.height)) {\n            if (desc.node.isBlock && desc.parent && !/^T(R|BODY|HEAD|FOOT)$/.test(desc.dom.nodeName)) {\n                // Only apply the horizontal test to the innermost block. Vertical for any parent.\n                if (!sawBlock && rect.left > coords.left || rect.top > coords.top)\n                    outsideBlock = desc.posBefore;\n                else if (!sawBlock && rect.right < coords.left || rect.bottom < coords.top)\n                    outsideBlock = desc.posAfter;\n                sawBlock = true;\n            }\n            if (!desc.contentDOM && outsideBlock < 0 && !desc.node.isText) {\n                // If we are inside a leaf, return the side of the leaf closer to the coords\n                let before = desc.node.isBlock ? coords.top < (rect.top + rect.bottom) / 2\n                    : coords.left < (rect.left + rect.right) / 2;\n                return before ? desc.posBefore : desc.posAfter;\n            }\n        }\n        cur = desc.dom.parentNode;\n    }\n    return outsideBlock > -1 ? outsideBlock : view.docView.posFromDOM(node, offset, -1);\n}\nfunction elementFromPoint(element, coords, box) {\n    let len = element.childNodes.length;\n    if (len && box.top < box.bottom) {\n        for (let startI = Math.max(0, Math.min(len - 1, Math.floor(len * (coords.top - box.top) / (box.bottom - box.top)) - 2)), i = startI;;) {\n            let child = element.childNodes[i];\n            if (child.nodeType == 1) {\n                let rects = child.getClientRects();\n                for (let j = 0; j < rects.length; j++) {\n                    let rect = rects[j];\n                    if (inRect(coords, rect))\n                        return elementFromPoint(child, coords, rect);\n                }\n            }\n            if ((i = (i + 1) % len) == startI)\n                break;\n        }\n    }\n    return element;\n}\n// Given an x,y position on the editor, get the position in the document.\nfunction posAtCoords(view, coords) {\n    let doc = view.dom.ownerDocument, node, offset = 0;\n    let caret = caretFromPoint(doc, coords.left, coords.top);\n    if (caret)\n        ({ node, offset } = caret);\n    let elt = (view.root.elementFromPoint ? view.root : doc)\n        .elementFromPoint(coords.left, coords.top);\n    let pos;\n    if (!elt || !view.dom.contains(elt.nodeType != 1 ? elt.parentNode : elt)) {\n        let box = view.dom.getBoundingClientRect();\n        if (!inRect(coords, box))\n            return null;\n        elt = elementFromPoint(view.dom, coords, box);\n        if (!elt)\n            return null;\n    }\n    // Safari's caretRangeFromPoint returns nonsense when on a draggable element\n    if (safari) {\n        for (let p = elt; node && p; p = parentNode(p))\n            if (p.draggable)\n                node = undefined;\n    }\n    elt = targetKludge(elt, coords);\n    if (node) {\n        if (gecko && node.nodeType == 1) {\n            // Firefox will sometimes return offsets into <input> nodes, which\n            // have no actual children, from caretPositionFromPoint (#953)\n            offset = Math.min(offset, node.childNodes.length);\n            // It'll also move the returned position before image nodes,\n            // even if those are behind it.\n            if (offset < node.childNodes.length) {\n                let next = node.childNodes[offset], box;\n                if (next.nodeName == \"IMG\" && (box = next.getBoundingClientRect()).right <= coords.left &&\n                    box.bottom > coords.top)\n                    offset++;\n            }\n        }\n        let prev;\n        // When clicking above the right side of an uneditable node, Chrome will report a cursor position after that node.\n        if (webkit && offset && node.nodeType == 1 && (prev = node.childNodes[offset - 1]).nodeType == 1 &&\n            prev.contentEditable == \"false\" && prev.getBoundingClientRect().top >= coords.top)\n            offset--;\n        // Suspiciously specific kludge to work around caret*FromPoint\n        // never returning a position at the end of the document\n        if (node == view.dom && offset == node.childNodes.length - 1 && node.lastChild.nodeType == 1 &&\n            coords.top > node.lastChild.getBoundingClientRect().bottom)\n            pos = view.state.doc.content.size;\n        // Ignore positions directly after a BR, since caret*FromPoint\n        // 'round up' positions that would be more accurately placed\n        // before the BR node.\n        else if (offset == 0 || node.nodeType != 1 || node.childNodes[offset - 1].nodeName != \"BR\")\n            pos = posFromCaret(view, node, offset, coords);\n    }\n    if (pos == null)\n        pos = posFromElement(view, elt, coords);\n    let desc = view.docView.nearestDesc(elt, true);\n    return { pos, inside: desc ? desc.posAtStart - desc.border : -1 };\n}\nfunction nonZero(rect) {\n    return rect.top < rect.bottom || rect.left < rect.right;\n}\nfunction singleRect(target, bias) {\n    let rects = target.getClientRects();\n    if (rects.length) {\n        let first = rects[bias < 0 ? 0 : rects.length - 1];\n        if (nonZero(first))\n            return first;\n    }\n    return Array.prototype.find.call(rects, nonZero) || target.getBoundingClientRect();\n}\nconst BIDI = /[\\u0590-\\u05f4\\u0600-\\u06ff\\u0700-\\u08ac]/;\n// Given a position in the document model, get a bounding box of the\n// character at that position, relative to the window.\nfunction coordsAtPos(view, pos, side) {\n    let { node, offset, atom } = view.docView.domFromPos(pos, side < 0 ? -1 : 1);\n    let supportEmptyRange = webkit || gecko;\n    if (node.nodeType == 3) {\n        // These browsers support querying empty text ranges. Prefer that in\n        // bidi context or when at the end of a node.\n        if (supportEmptyRange && (BIDI.test(node.nodeValue) || (side < 0 ? !offset : offset == node.nodeValue.length))) {\n            let rect = singleRect(textRange(node, offset, offset), side);\n            // Firefox returns bad results (the position before the space)\n            // when querying a position directly after line-broken\n            // whitespace. Detect this situation and and kludge around it\n            if (gecko && offset && /\\s/.test(node.nodeValue[offset - 1]) && offset < node.nodeValue.length) {\n                let rectBefore = singleRect(textRange(node, offset - 1, offset - 1), -1);\n                if (rectBefore.top == rect.top) {\n                    let rectAfter = singleRect(textRange(node, offset, offset + 1), -1);\n                    if (rectAfter.top != rect.top)\n                        return flattenV(rectAfter, rectAfter.left < rectBefore.left);\n                }\n            }\n            return rect;\n        }\n        else {\n            let from = offset, to = offset, takeSide = side < 0 ? 1 : -1;\n            if (side < 0 && !offset) {\n                to++;\n                takeSide = -1;\n            }\n            else if (side >= 0 && offset == node.nodeValue.length) {\n                from--;\n                takeSide = 1;\n            }\n            else if (side < 0) {\n                from--;\n            }\n            else {\n                to++;\n            }\n            return flattenV(singleRect(textRange(node, from, to), takeSide), takeSide < 0);\n        }\n    }\n    let $dom = view.state.doc.resolve(pos - (atom || 0));\n    // Return a horizontal line in block context\n    if (!$dom.parent.inlineContent) {\n        if (atom == null && offset && (side < 0 || offset == nodeSize(node))) {\n            let before = node.childNodes[offset - 1];\n            if (before.nodeType == 1)\n                return flattenH(before.getBoundingClientRect(), false);\n        }\n        if (atom == null && offset < nodeSize(node)) {\n            let after = node.childNodes[offset];\n            if (after.nodeType == 1)\n                return flattenH(after.getBoundingClientRect(), true);\n        }\n        return flattenH(node.getBoundingClientRect(), side >= 0);\n    }\n    // Inline, not in text node (this is not Bidi-safe)\n    if (atom == null && offset && (side < 0 || offset == nodeSize(node))) {\n        let before = node.childNodes[offset - 1];\n        let target = before.nodeType == 3 ? textRange(before, nodeSize(before) - (supportEmptyRange ? 0 : 1))\n            // BR nodes tend to only return the rectangle before them.\n            // Only use them if they are the last element in their parent\n            : before.nodeType == 1 && (before.nodeName != \"BR\" || !before.nextSibling) ? before : null;\n        if (target)\n            return flattenV(singleRect(target, 1), false);\n    }\n    if (atom == null && offset < nodeSize(node)) {\n        let after = node.childNodes[offset];\n        while (after.pmViewDesc && after.pmViewDesc.ignoreForCoords)\n            after = after.nextSibling;\n        let target = !after ? null : after.nodeType == 3 ? textRange(after, 0, (supportEmptyRange ? 0 : 1))\n            : after.nodeType == 1 ? after : null;\n        if (target)\n            return flattenV(singleRect(target, -1), true);\n    }\n    // All else failed, just try to get a rectangle for the target node\n    return flattenV(singleRect(node.nodeType == 3 ? textRange(node) : node, -side), side >= 0);\n}\nfunction flattenV(rect, left) {\n    if (rect.width == 0)\n        return rect;\n    let x = left ? rect.left : rect.right;\n    return { top: rect.top, bottom: rect.bottom, left: x, right: x };\n}\nfunction flattenH(rect, top) {\n    if (rect.height == 0)\n        return rect;\n    let y = top ? rect.top : rect.bottom;\n    return { top: y, bottom: y, left: rect.left, right: rect.right };\n}\nfunction withFlushedState(view, state, f) {\n    let viewState = view.state, active = view.root.activeElement;\n    if (viewState != state)\n        view.updateState(state);\n    if (active != view.dom)\n        view.focus();\n    try {\n        return f();\n    }\n    finally {\n        if (viewState != state)\n            view.updateState(viewState);\n        if (active != view.dom && active)\n            active.focus();\n    }\n}\n// Whether vertical position motion in a given direction\n// from a position would leave a text block.\nfunction endOfTextblockVertical(view, state, dir) {\n    let sel = state.selection;\n    let $pos = dir == \"up\" ? sel.$from : sel.$to;\n    return withFlushedState(view, state, () => {\n        let { node: dom } = view.docView.domFromPos($pos.pos, dir == \"up\" ? -1 : 1);\n        for (;;) {\n            let nearest = view.docView.nearestDesc(dom, true);\n            if (!nearest)\n                break;\n            if (nearest.node.isBlock) {\n                dom = nearest.contentDOM || nearest.dom;\n                break;\n            }\n            dom = nearest.dom.parentNode;\n        }\n        let coords = coordsAtPos(view, $pos.pos, 1);\n        for (let child = dom.firstChild; child; child = child.nextSibling) {\n            let boxes;\n            if (child.nodeType == 1)\n                boxes = child.getClientRects();\n            else if (child.nodeType == 3)\n                boxes = textRange(child, 0, child.nodeValue.length).getClientRects();\n            else\n                continue;\n            for (let i = 0; i < boxes.length; i++) {\n                let box = boxes[i];\n                if (box.bottom > box.top + 1 &&\n                    (dir == \"up\" ? coords.top - box.top > (box.bottom - coords.top) * 2\n                        : box.bottom - coords.bottom > (coords.bottom - box.top) * 2))\n                    return false;\n            }\n        }\n        return true;\n    });\n}\nconst maybeRTL = /[\\u0590-\\u08ac]/;\nfunction endOfTextblockHorizontal(view, state, dir) {\n    let { $head } = state.selection;\n    if (!$head.parent.isTextblock)\n        return false;\n    let offset = $head.parentOffset, atStart = !offset, atEnd = offset == $head.parent.content.size;\n    let sel = view.domSelection();\n    if (!sel)\n        return $head.pos == $head.start() || $head.pos == $head.end();\n    // If the textblock is all LTR, or the browser doesn't support\n    // Selection.modify (Edge), fall back to a primitive approach\n    if (!maybeRTL.test($head.parent.textContent) || !sel.modify)\n        return dir == \"left\" || dir == \"backward\" ? atStart : atEnd;\n    return withFlushedState(view, state, () => {\n        // This is a huge hack, but appears to be the best we can\n        // currently do: use `Selection.modify` to move the selection by\n        // one character, and see if that moves the cursor out of the\n        // textblock (or doesn't move it at all, when at the start/end of\n        // the document).\n        let { focusNode: oldNode, focusOffset: oldOff, anchorNode, anchorOffset } = view.domSelectionRange();\n        let oldBidiLevel = sel.caretBidiLevel // Only for Firefox\n        ;\n        sel.modify(\"move\", dir, \"character\");\n        let parentDOM = $head.depth ? view.docView.domAfterPos($head.before()) : view.dom;\n        let { focusNode: newNode, focusOffset: newOff } = view.domSelectionRange();\n        let result = newNode && !parentDOM.contains(newNode.nodeType == 1 ? newNode : newNode.parentNode) ||\n            (oldNode == newNode && oldOff == newOff);\n        // Restore the previous selection\n        try {\n            sel.collapse(anchorNode, anchorOffset);\n            if (oldNode && (oldNode != anchorNode || oldOff != anchorOffset) && sel.extend)\n                sel.extend(oldNode, oldOff);\n        }\n        catch (_) { }\n        if (oldBidiLevel != null)\n            sel.caretBidiLevel = oldBidiLevel;\n        return result;\n    });\n}\nlet cachedState = null;\nlet cachedDir = null;\nlet cachedResult = false;\nfunction endOfTextblock(view, state, dir) {\n    if (cachedState == state && cachedDir == dir)\n        return cachedResult;\n    cachedState = state;\n    cachedDir = dir;\n    return cachedResult = dir == \"up\" || dir == \"down\"\n        ? endOfTextblockVertical(view, state, dir)\n        : endOfTextblockHorizontal(view, state, dir);\n}\n\n// View descriptions are data structures that describe the DOM that is\n// used to represent the editor's content. They are used for:\n//\n// - Incremental redrawing when the document changes\n//\n// - Figuring out what part of the document a given DOM position\n//   corresponds to\n//\n// - Wiring in custom implementations of the editing interface for a\n//   given node\n//\n// They form a doubly-linked mutable tree, starting at `view.docView`.\nconst NOT_DIRTY = 0, CHILD_DIRTY = 1, CONTENT_DIRTY = 2, NODE_DIRTY = 3;\n// Superclass for the various kinds of descriptions. Defines their\n// basic structure and shared methods.\nclass ViewDesc {\n    constructor(parent, children, dom, \n    // This is the node that holds the child views. It may be null for\n    // descs that don't have children.\n    contentDOM) {\n        this.parent = parent;\n        this.children = children;\n        this.dom = dom;\n        this.contentDOM = contentDOM;\n        this.dirty = NOT_DIRTY;\n        // An expando property on the DOM node provides a link back to its\n        // description.\n        dom.pmViewDesc = this;\n    }\n    // Used to check whether a given description corresponds to a\n    // widget/mark/node.\n    matchesWidget(widget) { return false; }\n    matchesMark(mark) { return false; }\n    matchesNode(node, outerDeco, innerDeco) { return false; }\n    matchesHack(nodeName) { return false; }\n    // When parsing in-editor content (in domchange.js), we allow\n    // descriptions to determine the parse rules that should be used to\n    // parse them.\n    parseRule() { return null; }\n    // Used by the editor's event handler to ignore events that come\n    // from certain descs.\n    stopEvent(event) { return false; }\n    // The size of the content represented by this desc.\n    get size() {\n        let size = 0;\n        for (let i = 0; i < this.children.length; i++)\n            size += this.children[i].size;\n        return size;\n    }\n    // For block nodes, this represents the space taken up by their\n    // start/end tokens.\n    get border() { return 0; }\n    destroy() {\n        this.parent = undefined;\n        if (this.dom.pmViewDesc == this)\n            this.dom.pmViewDesc = undefined;\n        for (let i = 0; i < this.children.length; i++)\n            this.children[i].destroy();\n    }\n    posBeforeChild(child) {\n        for (let i = 0, pos = this.posAtStart;; i++) {\n            let cur = this.children[i];\n            if (cur == child)\n                return pos;\n            pos += cur.size;\n        }\n    }\n    get posBefore() {\n        return this.parent.posBeforeChild(this);\n    }\n    get posAtStart() {\n        return this.parent ? this.parent.posBeforeChild(this) + this.border : 0;\n    }\n    get posAfter() {\n        return this.posBefore + this.size;\n    }\n    get posAtEnd() {\n        return this.posAtStart + this.size - 2 * this.border;\n    }\n    localPosFromDOM(dom, offset, bias) {\n        // If the DOM position is in the content, use the child desc after\n        // it to figure out a position.\n        if (this.contentDOM && this.contentDOM.contains(dom.nodeType == 1 ? dom : dom.parentNode)) {\n            if (bias < 0) {\n                let domBefore, desc;\n                if (dom == this.contentDOM) {\n                    domBefore = dom.childNodes[offset - 1];\n                }\n                else {\n                    while (dom.parentNode != this.contentDOM)\n                        dom = dom.parentNode;\n                    domBefore = dom.previousSibling;\n                }\n                while (domBefore && !((desc = domBefore.pmViewDesc) && desc.parent == this))\n                    domBefore = domBefore.previousSibling;\n                return domBefore ? this.posBeforeChild(desc) + desc.size : this.posAtStart;\n            }\n            else {\n                let domAfter, desc;\n                if (dom == this.contentDOM) {\n                    domAfter = dom.childNodes[offset];\n                }\n                else {\n                    while (dom.parentNode != this.contentDOM)\n                        dom = dom.parentNode;\n                    domAfter = dom.nextSibling;\n                }\n                while (domAfter && !((desc = domAfter.pmViewDesc) && desc.parent == this))\n                    domAfter = domAfter.nextSibling;\n                return domAfter ? this.posBeforeChild(desc) : this.posAtEnd;\n            }\n        }\n        // Otherwise, use various heuristics, falling back on the bias\n        // parameter, to determine whether to return the position at the\n        // start or at the end of this view desc.\n        let atEnd;\n        if (dom == this.dom && this.contentDOM) {\n            atEnd = offset > domIndex(this.contentDOM);\n        }\n        else if (this.contentDOM && this.contentDOM != this.dom && this.dom.contains(this.contentDOM)) {\n            atEnd = dom.compareDocumentPosition(this.contentDOM) & 2;\n        }\n        else if (this.dom.firstChild) {\n            if (offset == 0)\n                for (let search = dom;; search = search.parentNode) {\n                    if (search == this.dom) {\n                        atEnd = false;\n                        break;\n                    }\n                    if (search.previousSibling)\n                        break;\n                }\n            if (atEnd == null && offset == dom.childNodes.length)\n                for (let search = dom;; search = search.parentNode) {\n                    if (search == this.dom) {\n                        atEnd = true;\n                        break;\n                    }\n                    if (search.nextSibling)\n                        break;\n                }\n        }\n        return (atEnd == null ? bias > 0 : atEnd) ? this.posAtEnd : this.posAtStart;\n    }\n    nearestDesc(dom, onlyNodes = false) {\n        for (let first = true, cur = dom; cur; cur = cur.parentNode) {\n            let desc = this.getDesc(cur), nodeDOM;\n            if (desc && (!onlyNodes || desc.node)) {\n                // If dom is outside of this desc's nodeDOM, don't count it.\n                if (first && (nodeDOM = desc.nodeDOM) &&\n                    !(nodeDOM.nodeType == 1 ? nodeDOM.contains(dom.nodeType == 1 ? dom : dom.parentNode) : nodeDOM == dom))\n                    first = false;\n                else\n                    return desc;\n            }\n        }\n    }\n    getDesc(dom) {\n        let desc = dom.pmViewDesc;\n        for (let cur = desc; cur; cur = cur.parent)\n            if (cur == this)\n                return desc;\n    }\n    posFromDOM(dom, offset, bias) {\n        for (let scan = dom; scan; scan = scan.parentNode) {\n            let desc = this.getDesc(scan);\n            if (desc)\n                return desc.localPosFromDOM(dom, offset, bias);\n        }\n        return -1;\n    }\n    // Find the desc for the node after the given pos, if any. (When a\n    // parent node overrode rendering, there might not be one.)\n    descAt(pos) {\n        for (let i = 0, offset = 0; i < this.children.length; i++) {\n            let child = this.children[i], end = offset + child.size;\n            if (offset == pos && end != offset) {\n                while (!child.border && child.children.length) {\n                    for (let i = 0; i < child.children.length; i++) {\n                        let inner = child.children[i];\n                        if (inner.size) {\n                            child = inner;\n                            break;\n                        }\n                    }\n                }\n                return child;\n            }\n            if (pos < end)\n                return child.descAt(pos - offset - child.border);\n            offset = end;\n        }\n    }\n    domFromPos(pos, side) {\n        if (!this.contentDOM)\n            return { node: this.dom, offset: 0, atom: pos + 1 };\n        // First find the position in the child array\n        let i = 0, offset = 0;\n        for (let curPos = 0; i < this.children.length; i++) {\n            let child = this.children[i], end = curPos + child.size;\n            if (end > pos || child instanceof TrailingHackViewDesc) {\n                offset = pos - curPos;\n                break;\n            }\n            curPos = end;\n        }\n        // If this points into the middle of a child, call through\n        if (offset)\n            return this.children[i].domFromPos(offset - this.children[i].border, side);\n        // Go back if there were any zero-length widgets with side >= 0 before this point\n        for (let prev; i && !(prev = this.children[i - 1]).size && prev instanceof WidgetViewDesc && prev.side >= 0; i--) { }\n        // Scan towards the first useable node\n        if (side <= 0) {\n            let prev, enter = true;\n            for (;; i--, enter = false) {\n                prev = i ? this.children[i - 1] : null;\n                if (!prev || prev.dom.parentNode == this.contentDOM)\n                    break;\n            }\n            if (prev && side && enter && !prev.border && !prev.domAtom)\n                return prev.domFromPos(prev.size, side);\n            return { node: this.contentDOM, offset: prev ? domIndex(prev.dom) + 1 : 0 };\n        }\n        else {\n            let next, enter = true;\n            for (;; i++, enter = false) {\n                next = i < this.children.length ? this.children[i] : null;\n                if (!next || next.dom.parentNode == this.contentDOM)\n                    break;\n            }\n            if (next && enter && !next.border && !next.domAtom)\n                return next.domFromPos(0, side);\n            return { node: this.contentDOM, offset: next ? domIndex(next.dom) : this.contentDOM.childNodes.length };\n        }\n    }\n    // Used to find a DOM range in a single parent for a given changed\n    // range.\n    parseRange(from, to, base = 0) {\n        if (this.children.length == 0)\n            return { node: this.contentDOM, from, to, fromOffset: 0, toOffset: this.contentDOM.childNodes.length };\n        let fromOffset = -1, toOffset = -1;\n        for (let offset = base, i = 0;; i++) {\n            let child = this.children[i], end = offset + child.size;\n            if (fromOffset == -1 && from <= end) {\n                let childBase = offset + child.border;\n                // FIXME maybe descend mark views to parse a narrower range?\n                if (from >= childBase && to <= end - child.border && child.node &&\n                    child.contentDOM && this.contentDOM.contains(child.contentDOM))\n                    return child.parseRange(from, to, childBase);\n                from = offset;\n                for (let j = i; j > 0; j--) {\n                    let prev = this.children[j - 1];\n                    if (prev.size && prev.dom.parentNode == this.contentDOM && !prev.emptyChildAt(1)) {\n                        fromOffset = domIndex(prev.dom) + 1;\n                        break;\n                    }\n                    from -= prev.size;\n                }\n                if (fromOffset == -1)\n                    fromOffset = 0;\n            }\n            if (fromOffset > -1 && (end > to || i == this.children.length - 1)) {\n                to = end;\n                for (let j = i + 1; j < this.children.length; j++) {\n                    let next = this.children[j];\n                    if (next.size && next.dom.parentNode == this.contentDOM && !next.emptyChildAt(-1)) {\n                        toOffset = domIndex(next.dom);\n                        break;\n                    }\n                    to += next.size;\n                }\n                if (toOffset == -1)\n                    toOffset = this.contentDOM.childNodes.length;\n                break;\n            }\n            offset = end;\n        }\n        return { node: this.contentDOM, from, to, fromOffset, toOffset };\n    }\n    emptyChildAt(side) {\n        if (this.border || !this.contentDOM || !this.children.length)\n            return false;\n        let child = this.children[side < 0 ? 0 : this.children.length - 1];\n        return child.size == 0 || child.emptyChildAt(side);\n    }\n    domAfterPos(pos) {\n        let { node, offset } = this.domFromPos(pos, 0);\n        if (node.nodeType != 1 || offset == node.childNodes.length)\n            throw new RangeError(\"No node after pos \" + pos);\n        return node.childNodes[offset];\n    }\n    // View descs are responsible for setting any selection that falls\n    // entirely inside of them, so that custom implementations can do\n    // custom things with the selection. Note that this falls apart when\n    // a selection starts in such a node and ends in another, in which\n    // case we just use whatever domFromPos produces as a best effort.\n    setSelection(anchor, head, view, force = false) {\n        // If the selection falls entirely in a child, give it to that child\n        let from = Math.min(anchor, head), to = Math.max(anchor, head);\n        for (let i = 0, offset = 0; i < this.children.length; i++) {\n            let child = this.children[i], end = offset + child.size;\n            if (from > offset && to < end)\n                return child.setSelection(anchor - offset - child.border, head - offset - child.border, view, force);\n            offset = end;\n        }\n        let anchorDOM = this.domFromPos(anchor, anchor ? -1 : 1);\n        let headDOM = head == anchor ? anchorDOM : this.domFromPos(head, head ? -1 : 1);\n        let domSel = view.root.getSelection();\n        let selRange = view.domSelectionRange();\n        let brKludge = false;\n        // On Firefox, using Selection.collapse to put the cursor after a\n        // BR node for some reason doesn't always work (#1073). On Safari,\n        // the cursor sometimes inexplicable visually lags behind its\n        // reported position in such situations (#1092).\n        if ((gecko || safari) && anchor == head) {\n            let { node, offset } = anchorDOM;\n            if (node.nodeType == 3) {\n                brKludge = !!(offset && node.nodeValue[offset - 1] == \"\\n\");\n                // Issue #1128\n                if (brKludge && offset == node.nodeValue.length) {\n                    for (let scan = node, after; scan; scan = scan.parentNode) {\n                        if (after = scan.nextSibling) {\n                            if (after.nodeName == \"BR\")\n                                anchorDOM = headDOM = { node: after.parentNode, offset: domIndex(after) + 1 };\n                            break;\n                        }\n                        let desc = scan.pmViewDesc;\n                        if (desc && desc.node && desc.node.isBlock)\n                            break;\n                    }\n                }\n            }\n            else {\n                let prev = node.childNodes[offset - 1];\n                brKludge = prev && (prev.nodeName == \"BR\" || prev.contentEditable == \"false\");\n            }\n        }\n        // Firefox can act strangely when the selection is in front of an\n        // uneditable node. See #1163 and https://bugzilla.mozilla.org/show_bug.cgi?id=1709536\n        if (gecko && selRange.focusNode && selRange.focusNode != headDOM.node && selRange.focusNode.nodeType == 1) {\n            let after = selRange.focusNode.childNodes[selRange.focusOffset];\n            if (after && after.contentEditable == \"false\")\n                force = true;\n        }\n        if (!(force || brKludge && safari) &&\n            isEquivalentPosition(anchorDOM.node, anchorDOM.offset, selRange.anchorNode, selRange.anchorOffset) &&\n            isEquivalentPosition(headDOM.node, headDOM.offset, selRange.focusNode, selRange.focusOffset))\n            return;\n        // Selection.extend can be used to create an 'inverted' selection\n        // (one where the focus is before the anchor), but not all\n        // browsers support it yet.\n        let domSelExtended = false;\n        if ((domSel.extend || anchor == head) && !(brKludge && gecko)) {\n            domSel.collapse(anchorDOM.node, anchorDOM.offset);\n            try {\n                if (anchor != head)\n                    domSel.extend(headDOM.node, headDOM.offset);\n                domSelExtended = true;\n            }\n            catch (_) {\n                // In some cases with Chrome the selection is empty after calling\n                // collapse, even when it should be valid. This appears to be a bug, but\n                // it is difficult to isolate. If this happens fallback to the old path\n                // without using extend.\n                // Similarly, this could crash on Safari if the editor is hidden, and\n                // there was no selection.\n            }\n        }\n        if (!domSelExtended) {\n            if (anchor > head) {\n                let tmp = anchorDOM;\n                anchorDOM = headDOM;\n                headDOM = tmp;\n            }\n            let range = document.createRange();\n            range.setEnd(headDOM.node, headDOM.offset);\n            range.setStart(anchorDOM.node, anchorDOM.offset);\n            domSel.removeAllRanges();\n            domSel.addRange(range);\n        }\n    }\n    ignoreMutation(mutation) {\n        return !this.contentDOM && mutation.type != \"selection\";\n    }\n    get contentLost() {\n        return this.contentDOM && this.contentDOM != this.dom && !this.dom.contains(this.contentDOM);\n    }\n    // Remove a subtree of the element tree that has been touched\n    // by a DOM change, so that the next update will redraw it.\n    markDirty(from, to) {\n        for (let offset = 0, i = 0; i < this.children.length; i++) {\n            let child = this.children[i], end = offset + child.size;\n            if (offset == end ? from <= end && to >= offset : from < end && to > offset) {\n                let startInside = offset + child.border, endInside = end - child.border;\n                if (from >= startInside && to <= endInside) {\n                    this.dirty = from == offset || to == end ? CONTENT_DIRTY : CHILD_DIRTY;\n                    if (from == startInside && to == endInside &&\n                        (child.contentLost || child.dom.parentNode != this.contentDOM))\n                        child.dirty = NODE_DIRTY;\n                    else\n                        child.markDirty(from - startInside, to - startInside);\n                    return;\n                }\n                else {\n                    child.dirty = child.dom == child.contentDOM && child.dom.parentNode == this.contentDOM && !child.children.length\n                        ? CONTENT_DIRTY : NODE_DIRTY;\n                }\n            }\n            offset = end;\n        }\n        this.dirty = CONTENT_DIRTY;\n    }\n    markParentsDirty() {\n        let level = 1;\n        for (let node = this.parent; node; node = node.parent, level++) {\n            let dirty = level == 1 ? CONTENT_DIRTY : CHILD_DIRTY;\n            if (node.dirty < dirty)\n                node.dirty = dirty;\n        }\n    }\n    get domAtom() { return false; }\n    get ignoreForCoords() { return false; }\n    get ignoreForSelection() { return false; }\n    isText(text) { return false; }\n}\n// A widget desc represents a widget decoration, which is a DOM node\n// drawn between the document nodes.\nclass WidgetViewDesc extends ViewDesc {\n    constructor(parent, widget, view, pos) {\n        let self, dom = widget.type.toDOM;\n        if (typeof dom == \"function\")\n            dom = dom(view, () => {\n                if (!self)\n                    return pos;\n                if (self.parent)\n                    return self.parent.posBeforeChild(self);\n            });\n        if (!widget.type.spec.raw) {\n            if (dom.nodeType != 1) {\n                let wrap = document.createElement(\"span\");\n                wrap.appendChild(dom);\n                dom = wrap;\n            }\n            dom.contentEditable = \"false\";\n            dom.classList.add(\"ProseMirror-widget\");\n        }\n        super(parent, [], dom, null);\n        this.widget = widget;\n        this.widget = widget;\n        self = this;\n    }\n    matchesWidget(widget) {\n        return this.dirty == NOT_DIRTY && widget.type.eq(this.widget.type);\n    }\n    parseRule() { return { ignore: true }; }\n    stopEvent(event) {\n        let stop = this.widget.spec.stopEvent;\n        return stop ? stop(event) : false;\n    }\n    ignoreMutation(mutation) {\n        return mutation.type != \"selection\" || this.widget.spec.ignoreSelection;\n    }\n    destroy() {\n        this.widget.type.destroy(this.dom);\n        super.destroy();\n    }\n    get domAtom() { return true; }\n    get ignoreForSelection() { return !!this.widget.type.spec.relaxedSide; }\n    get side() { return this.widget.type.side; }\n}\nclass CompositionViewDesc extends ViewDesc {\n    constructor(parent, dom, textDOM, text) {\n        super(parent, [], dom, null);\n        this.textDOM = textDOM;\n        this.text = text;\n    }\n    get size() { return this.text.length; }\n    localPosFromDOM(dom, offset) {\n        if (dom != this.textDOM)\n            return this.posAtStart + (offset ? this.size : 0);\n        return this.posAtStart + offset;\n    }\n    domFromPos(pos) {\n        return { node: this.textDOM, offset: pos };\n    }\n    ignoreMutation(mut) {\n        return mut.type === 'characterData' && mut.target.nodeValue == mut.oldValue;\n    }\n}\n// A mark desc represents a mark. May have multiple children,\n// depending on how the mark is split. Note that marks are drawn using\n// a fixed nesting order, for simplicity and predictability, so in\n// some cases they will be split more often than would appear\n// necessary.\nclass MarkViewDesc extends ViewDesc {\n    constructor(parent, mark, dom, contentDOM, spec) {\n        super(parent, [], dom, contentDOM);\n        this.mark = mark;\n        this.spec = spec;\n    }\n    static create(parent, mark, inline, view) {\n        let custom = view.nodeViews[mark.type.name];\n        let spec = custom && custom(mark, view, inline);\n        if (!spec || !spec.dom)\n            spec = DOMSerializer.renderSpec(document, mark.type.spec.toDOM(mark, inline), null, mark.attrs);\n        return new MarkViewDesc(parent, mark, spec.dom, spec.contentDOM || spec.dom, spec);\n    }\n    parseRule() {\n        if ((this.dirty & NODE_DIRTY) || this.mark.type.spec.reparseInView)\n            return null;\n        return { mark: this.mark.type.name, attrs: this.mark.attrs, contentElement: this.contentDOM };\n    }\n    matchesMark(mark) { return this.dirty != NODE_DIRTY && this.mark.eq(mark); }\n    markDirty(from, to) {\n        super.markDirty(from, to);\n        // Move dirty info to nearest node view\n        if (this.dirty != NOT_DIRTY) {\n            let parent = this.parent;\n            while (!parent.node)\n                parent = parent.parent;\n            if (parent.dirty < this.dirty)\n                parent.dirty = this.dirty;\n            this.dirty = NOT_DIRTY;\n        }\n    }\n    slice(from, to, view) {\n        let copy = MarkViewDesc.create(this.parent, this.mark, true, view);\n        let nodes = this.children, size = this.size;\n        if (to < size)\n            nodes = replaceNodes(nodes, to, size, view);\n        if (from > 0)\n            nodes = replaceNodes(nodes, 0, from, view);\n        for (let i = 0; i < nodes.length; i++)\n            nodes[i].parent = copy;\n        copy.children = nodes;\n        return copy;\n    }\n    ignoreMutation(mutation) {\n        return this.spec.ignoreMutation ? this.spec.ignoreMutation(mutation) : super.ignoreMutation(mutation);\n    }\n    destroy() {\n        if (this.spec.destroy)\n            this.spec.destroy();\n        super.destroy();\n    }\n}\n// Node view descs are the main, most common type of view desc, and\n// correspond to an actual node in the document. Unlike mark descs,\n// they populate their child array themselves.\nclass NodeViewDesc extends ViewDesc {\n    constructor(parent, node, outerDeco, innerDeco, dom, contentDOM, nodeDOM, view, pos) {\n        super(parent, [], dom, contentDOM);\n        this.node = node;\n        this.outerDeco = outerDeco;\n        this.innerDeco = innerDeco;\n        this.nodeDOM = nodeDOM;\n    }\n    // By default, a node is rendered using the `toDOM` method from the\n    // node type spec. But client code can use the `nodeViews` spec to\n    // supply a custom node view, which can influence various aspects of\n    // the way the node works.\n    //\n    // (Using subclassing for this was intentionally decided against,\n    // since it'd require exposing a whole slew of finicky\n    // implementation details to the user code that they probably will\n    // never need.)\n    static create(parent, node, outerDeco, innerDeco, view, pos) {\n        let custom = view.nodeViews[node.type.name], descObj;\n        let spec = custom && custom(node, view, () => {\n            // (This is a function that allows the custom view to find its\n            // own position)\n            if (!descObj)\n                return pos;\n            if (descObj.parent)\n                return descObj.parent.posBeforeChild(descObj);\n        }, outerDeco, innerDeco);\n        let dom = spec && spec.dom, contentDOM = spec && spec.contentDOM;\n        if (node.isText) {\n            if (!dom)\n                dom = document.createTextNode(node.text);\n            else if (dom.nodeType != 3)\n                throw new RangeError(\"Text must be rendered as a DOM text node\");\n        }\n        else if (!dom) {\n            let spec = DOMSerializer.renderSpec(document, node.type.spec.toDOM(node), null, node.attrs);\n            ({ dom, contentDOM } = spec);\n        }\n        if (!contentDOM && !node.isText && dom.nodeName != \"BR\") { // Chrome gets confused by <br contenteditable=false>\n            if (!dom.hasAttribute(\"contenteditable\"))\n                dom.contentEditable = \"false\";\n            if (node.type.spec.draggable)\n                dom.draggable = true;\n        }\n        let nodeDOM = dom;\n        dom = applyOuterDeco(dom, outerDeco, node);\n        if (spec)\n            return descObj = new CustomNodeViewDesc(parent, node, outerDeco, innerDeco, dom, contentDOM || null, nodeDOM, spec, view, pos + 1);\n        else if (node.isText)\n            return new TextViewDesc(parent, node, outerDeco, innerDeco, dom, nodeDOM, view);\n        else\n            return new NodeViewDesc(parent, node, outerDeco, innerDeco, dom, contentDOM || null, nodeDOM, view, pos + 1);\n    }\n    parseRule() {\n        // Experimental kludge to allow opt-in re-parsing of nodes\n        if (this.node.type.spec.reparseInView)\n            return null;\n        // FIXME the assumption that this can always return the current\n        // attrs means that if the user somehow manages to change the\n        // attrs in the dom, that won't be picked up. Not entirely sure\n        // whether this is a problem\n        let rule = { node: this.node.type.name, attrs: this.node.attrs };\n        if (this.node.type.whitespace == \"pre\")\n            rule.preserveWhitespace = \"full\";\n        if (!this.contentDOM) {\n            rule.getContent = () => this.node.content;\n        }\n        else if (!this.contentLost) {\n            rule.contentElement = this.contentDOM;\n        }\n        else {\n            // Chrome likes to randomly recreate parent nodes when\n            // backspacing things. When that happens, this tries to find the\n            // new parent.\n            for (let i = this.children.length - 1; i >= 0; i--) {\n                let child = this.children[i];\n                if (this.dom.contains(child.dom.parentNode)) {\n                    rule.contentElement = child.dom.parentNode;\n                    break;\n                }\n            }\n            if (!rule.contentElement)\n                rule.getContent = () => Fragment.empty;\n        }\n        return rule;\n    }\n    matchesNode(node, outerDeco, innerDeco) {\n        return this.dirty == NOT_DIRTY && node.eq(this.node) &&\n            sameOuterDeco(outerDeco, this.outerDeco) && innerDeco.eq(this.innerDeco);\n    }\n    get size() { return this.node.nodeSize; }\n    get border() { return this.node.isLeaf ? 0 : 1; }\n    // Syncs `this.children` to match `this.node.content` and the local\n    // decorations, possibly introducing nesting for marks. Then, in a\n    // separate step, syncs the DOM inside `this.contentDOM` to\n    // `this.children`.\n    updateChildren(view, pos) {\n        let inline = this.node.inlineContent, off = pos;\n        let composition = view.composing ? this.localCompositionInfo(view, pos) : null;\n        let localComposition = composition && composition.pos > -1 ? composition : null;\n        let compositionInChild = composition && composition.pos < 0;\n        let updater = new ViewTreeUpdater(this, localComposition && localComposition.node, view);\n        iterDeco(this.node, this.innerDeco, (widget, i, insideNode) => {\n            if (widget.spec.marks)\n                updater.syncToMarks(widget.spec.marks, inline, view, i);\n            else if (widget.type.side >= 0 && !insideNode)\n                updater.syncToMarks(i == this.node.childCount ? Mark.none : this.node.child(i).marks, inline, view, i);\n            // If the next node is a desc matching this widget, reuse it,\n            // otherwise insert the widget as a new view desc.\n            updater.placeWidget(widget, view, off);\n        }, (child, outerDeco, innerDeco, i) => {\n            // Make sure the wrapping mark descs match the node's marks.\n            updater.syncToMarks(child.marks, inline, view, i);\n            // Try several strategies for drawing this node\n            let compIndex;\n            if (updater.findNodeMatch(child, outerDeco, innerDeco, i)) ;\n            else if (compositionInChild && view.state.selection.from > off &&\n                view.state.selection.to < off + child.nodeSize &&\n                (compIndex = updater.findIndexWithChild(composition.node)) > -1 &&\n                updater.updateNodeAt(child, outerDeco, innerDeco, compIndex, view)) ;\n            else if (updater.updateNextNode(child, outerDeco, innerDeco, view, i, off)) ;\n            else {\n                // Add it as a new view\n                updater.addNode(child, outerDeco, innerDeco, view, off);\n            }\n            off += child.nodeSize;\n        });\n        // Drop all remaining descs after the current position.\n        updater.syncToMarks([], inline, view, 0);\n        if (this.node.isTextblock)\n            updater.addTextblockHacks();\n        updater.destroyRest();\n        // Sync the DOM if anything changed\n        if (updater.changed || this.dirty == CONTENT_DIRTY) {\n            // May have to protect focused DOM from being changed if a composition is active\n            if (localComposition)\n                this.protectLocalComposition(view, localComposition);\n            renderDescs(this.contentDOM, this.children, view);\n            if (ios)\n                iosHacks(this.dom);\n        }\n    }\n    localCompositionInfo(view, pos) {\n        // Only do something if both the selection and a focused text node\n        // are inside of this node\n        let { from, to } = view.state.selection;\n        if (!(view.state.selection instanceof TextSelection) || from < pos || to > pos + this.node.content.size)\n            return null;\n        let textNode = view.input.compositionNode;\n        if (!textNode || !this.dom.contains(textNode.parentNode))\n            return null;\n        if (this.node.inlineContent) {\n            // Find the text in the focused node in the node, stop if it's not\n            // there (may have been modified through other means, in which\n            // case it should overwritten)\n            let text = textNode.nodeValue;\n            let textPos = findTextInFragment(this.node.content, text, from - pos, to - pos);\n            return textPos < 0 ? null : { node: textNode, pos: textPos, text };\n        }\n        else {\n            return { node: textNode, pos: -1, text: \"\" };\n        }\n    }\n    protectLocalComposition(view, { node, pos, text }) {\n        // The node is already part of a local view desc, leave it there\n        if (this.getDesc(node))\n            return;\n        // Create a composition view for the orphaned nodes\n        let topNode = node;\n        for (;; topNode = topNode.parentNode) {\n            if (topNode.parentNode == this.contentDOM)\n                break;\n            while (topNode.previousSibling)\n                topNode.parentNode.removeChild(topNode.previousSibling);\n            while (topNode.nextSibling)\n                topNode.parentNode.removeChild(topNode.nextSibling);\n            if (topNode.pmViewDesc)\n                topNode.pmViewDesc = undefined;\n        }\n        let desc = new CompositionViewDesc(this, topNode, node, text);\n        view.input.compositionNodes.push(desc);\n        // Patch up this.children to contain the composition view\n        this.children = replaceNodes(this.children, pos, pos + text.length, view, desc);\n    }\n    // If this desc must be updated to match the given node decoration,\n    // do so and return true.\n    update(node, outerDeco, innerDeco, view) {\n        if (this.dirty == NODE_DIRTY ||\n            !node.sameMarkup(this.node))\n            return false;\n        this.updateInner(node, outerDeco, innerDeco, view);\n        return true;\n    }\n    updateInner(node, outerDeco, innerDeco, view) {\n        this.updateOuterDeco(outerDeco);\n        this.node = node;\n        this.innerDeco = innerDeco;\n        if (this.contentDOM)\n            this.updateChildren(view, this.posAtStart);\n        this.dirty = NOT_DIRTY;\n    }\n    updateOuterDeco(outerDeco) {\n        if (sameOuterDeco(outerDeco, this.outerDeco))\n            return;\n        let needsWrap = this.nodeDOM.nodeType != 1;\n        let oldDOM = this.dom;\n        this.dom = patchOuterDeco(this.dom, this.nodeDOM, computeOuterDeco(this.outerDeco, this.node, needsWrap), computeOuterDeco(outerDeco, this.node, needsWrap));\n        if (this.dom != oldDOM) {\n            oldDOM.pmViewDesc = undefined;\n            this.dom.pmViewDesc = this;\n        }\n        this.outerDeco = outerDeco;\n    }\n    // Mark this node as being the selected node.\n    selectNode() {\n        if (this.nodeDOM.nodeType == 1) {\n            this.nodeDOM.classList.add(\"ProseMirror-selectednode\");\n            if (this.contentDOM || !this.node.type.spec.draggable)\n                this.nodeDOM.draggable = true;\n        }\n    }\n    // Remove selected node marking from this node.\n    deselectNode() {\n        if (this.nodeDOM.nodeType == 1) {\n            this.nodeDOM.classList.remove(\"ProseMirror-selectednode\");\n            if (this.contentDOM || !this.node.type.spec.draggable)\n                this.nodeDOM.removeAttribute(\"draggable\");\n        }\n    }\n    get domAtom() { return this.node.isAtom; }\n}\n// Create a view desc for the top-level document node, to be exported\n// and used by the view class.\nfunction docViewDesc(doc, outerDeco, innerDeco, dom, view) {\n    applyOuterDeco(dom, outerDeco, doc);\n    let docView = new NodeViewDesc(undefined, doc, outerDeco, innerDeco, dom, dom, dom, view, 0);\n    if (docView.contentDOM)\n        docView.updateChildren(view, 0);\n    return docView;\n}\nclass TextViewDesc extends NodeViewDesc {\n    constructor(parent, node, outerDeco, innerDeco, dom, nodeDOM, view) {\n        super(parent, node, outerDeco, innerDeco, dom, null, nodeDOM, view, 0);\n    }\n    parseRule() {\n        let skip = this.nodeDOM.parentNode;\n        while (skip && skip != this.dom && !skip.pmIsDeco)\n            skip = skip.parentNode;\n        return { skip: (skip || true) };\n    }\n    update(node, outerDeco, innerDeco, view) {\n        if (this.dirty == NODE_DIRTY || (this.dirty != NOT_DIRTY && !this.inParent()) ||\n            !node.sameMarkup(this.node))\n            return false;\n        this.updateOuterDeco(outerDeco);\n        if ((this.dirty != NOT_DIRTY || node.text != this.node.text) && node.text != this.nodeDOM.nodeValue) {\n            this.nodeDOM.nodeValue = node.text;\n            if (view.trackWrites == this.nodeDOM)\n                view.trackWrites = null;\n        }\n        this.node = node;\n        this.dirty = NOT_DIRTY;\n        return true;\n    }\n    inParent() {\n        let parentDOM = this.parent.contentDOM;\n        for (let n = this.nodeDOM; n; n = n.parentNode)\n            if (n == parentDOM)\n                return true;\n        return false;\n    }\n    domFromPos(pos) {\n        return { node: this.nodeDOM, offset: pos };\n    }\n    localPosFromDOM(dom, offset, bias) {\n        if (dom == this.nodeDOM)\n            return this.posAtStart + Math.min(offset, this.node.text.length);\n        return super.localPosFromDOM(dom, offset, bias);\n    }\n    ignoreMutation(mutation) {\n        return mutation.type != \"characterData\" && mutation.type != \"selection\";\n    }\n    slice(from, to, view) {\n        let node = this.node.cut(from, to), dom = document.createTextNode(node.text);\n        return new TextViewDesc(this.parent, node, this.outerDeco, this.innerDeco, dom, dom, view);\n    }\n    markDirty(from, to) {\n        super.markDirty(from, to);\n        if (this.dom != this.nodeDOM && (from == 0 || to == this.nodeDOM.nodeValue.length))\n            this.dirty = NODE_DIRTY;\n    }\n    get domAtom() { return false; }\n    isText(text) { return this.node.text == text; }\n}\n// A dummy desc used to tag trailing BR or IMG nodes created to work\n// around contentEditable terribleness.\nclass TrailingHackViewDesc extends ViewDesc {\n    parseRule() { return { ignore: true }; }\n    matchesHack(nodeName) { return this.dirty == NOT_DIRTY && this.dom.nodeName == nodeName; }\n    get domAtom() { return true; }\n    get ignoreForCoords() { return this.dom.nodeName == \"IMG\"; }\n}\n// A separate subclass is used for customized node views, so that the\n// extra checks only have to be made for nodes that are actually\n// customized.\nclass CustomNodeViewDesc extends NodeViewDesc {\n    constructor(parent, node, outerDeco, innerDeco, dom, contentDOM, nodeDOM, spec, view, pos) {\n        super(parent, node, outerDeco, innerDeco, dom, contentDOM, nodeDOM, view, pos);\n        this.spec = spec;\n    }\n    // A custom `update` method gets to decide whether the update goes\n    // through. If it does, and there's a `contentDOM` node, our logic\n    // updates the children.\n    update(node, outerDeco, innerDeco, view) {\n        if (this.dirty == NODE_DIRTY)\n            return false;\n        if (this.spec.update && (this.node.type == node.type || this.spec.multiType)) {\n            let result = this.spec.update(node, outerDeco, innerDeco);\n            if (result)\n                this.updateInner(node, outerDeco, innerDeco, view);\n            return result;\n        }\n        else if (!this.contentDOM && !node.isLeaf) {\n            return false;\n        }\n        else {\n            return super.update(node, outerDeco, innerDeco, view);\n        }\n    }\n    selectNode() {\n        this.spec.selectNode ? this.spec.selectNode() : super.selectNode();\n    }\n    deselectNode() {\n        this.spec.deselectNode ? this.spec.deselectNode() : super.deselectNode();\n    }\n    setSelection(anchor, head, view, force) {\n        this.spec.setSelection ? this.spec.setSelection(anchor, head, view.root)\n            : super.setSelection(anchor, head, view, force);\n    }\n    destroy() {\n        if (this.spec.destroy)\n            this.spec.destroy();\n        super.destroy();\n    }\n    stopEvent(event) {\n        return this.spec.stopEvent ? this.spec.stopEvent(event) : false;\n    }\n    ignoreMutation(mutation) {\n        return this.spec.ignoreMutation ? this.spec.ignoreMutation(mutation) : super.ignoreMutation(mutation);\n    }\n}\n// Sync the content of the given DOM node with the nodes associated\n// with the given array of view descs, recursing into mark descs\n// because this should sync the subtree for a whole node at a time.\nfunction renderDescs(parentDOM, descs, view) {\n    let dom = parentDOM.firstChild, written = false;\n    for (let i = 0; i < descs.length; i++) {\n        let desc = descs[i], childDOM = desc.dom;\n        if (childDOM.parentNode == parentDOM) {\n            while (childDOM != dom) {\n                dom = rm(dom);\n                written = true;\n            }\n            dom = dom.nextSibling;\n        }\n        else {\n            written = true;\n            parentDOM.insertBefore(childDOM, dom);\n        }\n        if (desc instanceof MarkViewDesc) {\n            let pos = dom ? dom.previousSibling : parentDOM.lastChild;\n            renderDescs(desc.contentDOM, desc.children, view);\n            dom = pos ? pos.nextSibling : parentDOM.firstChild;\n        }\n    }\n    while (dom) {\n        dom = rm(dom);\n        written = true;\n    }\n    if (written && view.trackWrites == parentDOM)\n        view.trackWrites = null;\n}\nconst OuterDecoLevel = function (nodeName) {\n    if (nodeName)\n        this.nodeName = nodeName;\n};\nOuterDecoLevel.prototype = Object.create(null);\nconst noDeco = [new OuterDecoLevel];\nfunction computeOuterDeco(outerDeco, node, needsWrap) {\n    if (outerDeco.length == 0)\n        return noDeco;\n    let top = needsWrap ? noDeco[0] : new OuterDecoLevel, result = [top];\n    for (let i = 0; i < outerDeco.length; i++) {\n        let attrs = outerDeco[i].type.attrs;\n        if (!attrs)\n            continue;\n        if (attrs.nodeName)\n            result.push(top = new OuterDecoLevel(attrs.nodeName));\n        for (let name in attrs) {\n            let val = attrs[name];\n            if (val == null)\n                continue;\n            if (needsWrap && result.length == 1)\n                result.push(top = new OuterDecoLevel(node.isInline ? \"span\" : \"div\"));\n            if (name == \"class\")\n                top.class = (top.class ? top.class + \" \" : \"\") + val;\n            else if (name == \"style\")\n                top.style = (top.style ? top.style + \";\" : \"\") + val;\n            else if (name != \"nodeName\")\n                top[name] = val;\n        }\n    }\n    return result;\n}\nfunction patchOuterDeco(outerDOM, nodeDOM, prevComputed, curComputed) {\n    // Shortcut for trivial case\n    if (prevComputed == noDeco && curComputed == noDeco)\n        return nodeDOM;\n    let curDOM = nodeDOM;\n    for (let i = 0; i < curComputed.length; i++) {\n        let deco = curComputed[i], prev = prevComputed[i];\n        if (i) {\n            let parent;\n            if (prev && prev.nodeName == deco.nodeName && curDOM != outerDOM &&\n                (parent = curDOM.parentNode) && parent.nodeName.toLowerCase() == deco.nodeName) {\n                curDOM = parent;\n            }\n            else {\n                parent = document.createElement(deco.nodeName);\n                parent.pmIsDeco = true;\n                parent.appendChild(curDOM);\n                prev = noDeco[0];\n                curDOM = parent;\n            }\n        }\n        patchAttributes(curDOM, prev || noDeco[0], deco);\n    }\n    return curDOM;\n}\nfunction patchAttributes(dom, prev, cur) {\n    for (let name in prev)\n        if (name != \"class\" && name != \"style\" && name != \"nodeName\" && !(name in cur))\n            dom.removeAttribute(name);\n    for (let name in cur)\n        if (name != \"class\" && name != \"style\" && name != \"nodeName\" && cur[name] != prev[name])\n            dom.setAttribute(name, cur[name]);\n    if (prev.class != cur.class) {\n        let prevList = prev.class ? prev.class.split(\" \").filter(Boolean) : [];\n        let curList = cur.class ? cur.class.split(\" \").filter(Boolean) : [];\n        for (let i = 0; i < prevList.length; i++)\n            if (curList.indexOf(prevList[i]) == -1)\n                dom.classList.remove(prevList[i]);\n        for (let i = 0; i < curList.length; i++)\n            if (prevList.indexOf(curList[i]) == -1)\n                dom.classList.add(curList[i]);\n        if (dom.classList.length == 0)\n            dom.removeAttribute(\"class\");\n    }\n    if (prev.style != cur.style) {\n        if (prev.style) {\n            let prop = /\\s*([\\w\\-\\xa1-\\uffff]+)\\s*:(?:\"(?:\\\\.|[^\"])*\"|'(?:\\\\.|[^'])*'|\\(.*?\\)|[^;])*/g, m;\n            while (m = prop.exec(prev.style))\n                dom.style.removeProperty(m[1]);\n        }\n        if (cur.style)\n            dom.style.cssText += cur.style;\n    }\n}\nfunction applyOuterDeco(dom, deco, node) {\n    return patchOuterDeco(dom, dom, noDeco, computeOuterDeco(deco, node, dom.nodeType != 1));\n}\nfunction sameOuterDeco(a, b) {\n    if (a.length != b.length)\n        return false;\n    for (let i = 0; i < a.length; i++)\n        if (!a[i].type.eq(b[i].type))\n            return false;\n    return true;\n}\n// Remove a DOM node and return its next sibling.\nfunction rm(dom) {\n    let next = dom.nextSibling;\n    dom.parentNode.removeChild(dom);\n    return next;\n}\n// Helper class for incrementally updating a tree of mark descs and\n// the widget and node descs inside of them.\nclass ViewTreeUpdater {\n    constructor(top, lock, view) {\n        this.lock = lock;\n        this.view = view;\n        // Index into `this.top`'s child array, represents the current\n        // update position.\n        this.index = 0;\n        // When entering a mark, the current top and index are pushed\n        // onto this.\n        this.stack = [];\n        // Tracks whether anything was changed\n        this.changed = false;\n        this.top = top;\n        this.preMatch = preMatch(top.node.content, top);\n    }\n    // Destroy and remove the children between the given indices in\n    // `this.top`.\n    destroyBetween(start, end) {\n        if (start == end)\n            return;\n        for (let i = start; i < end; i++)\n            this.top.children[i].destroy();\n        this.top.children.splice(start, end - start);\n        this.changed = true;\n    }\n    // Destroy all remaining children in `this.top`.\n    destroyRest() {\n        this.destroyBetween(this.index, this.top.children.length);\n    }\n    // Sync the current stack of mark descs with the given array of\n    // marks, reusing existing mark descs when possible.\n    syncToMarks(marks, inline, view, parentIndex) {\n        let keep = 0, depth = this.stack.length >> 1;\n        let maxKeep = Math.min(depth, marks.length);\n        while (keep < maxKeep &&\n            (keep == depth - 1 ? this.top : this.stack[(keep + 1) << 1])\n                .matchesMark(marks[keep]) && marks[keep].type.spec.spanning !== false)\n            keep++;\n        while (keep < depth) {\n            this.destroyRest();\n            this.top.dirty = NOT_DIRTY;\n            this.index = this.stack.pop();\n            this.top = this.stack.pop();\n            depth--;\n        }\n        while (depth < marks.length) {\n            this.stack.push(this.top, this.index + 1);\n            let found = -1, scanTo = this.top.children.length;\n            if (parentIndex < this.preMatch.index)\n                scanTo = Math.min(this.index + 3, scanTo);\n            for (let i = this.index; i < scanTo; i++) {\n                let next = this.top.children[i];\n                if (next.matchesMark(marks[depth]) && !this.isLocked(next.dom)) {\n                    found = i;\n                    break;\n                }\n            }\n            if (found > -1) {\n                if (found > this.index) {\n                    this.changed = true;\n                    this.destroyBetween(this.index, found);\n                }\n                this.top = this.top.children[this.index];\n            }\n            else {\n                let markDesc = MarkViewDesc.create(this.top, marks[depth], inline, view);\n                this.top.children.splice(this.index, 0, markDesc);\n                this.top = markDesc;\n                this.changed = true;\n            }\n            this.index = 0;\n            depth++;\n        }\n    }\n    // Try to find a node desc matching the given data. Skip over it and\n    // return true when successful.\n    findNodeMatch(node, outerDeco, innerDeco, index) {\n        let found = -1, targetDesc;\n        if (index >= this.preMatch.index &&\n            (targetDesc = this.preMatch.matches[index - this.preMatch.index]).parent == this.top &&\n            targetDesc.matchesNode(node, outerDeco, innerDeco)) {\n            found = this.top.children.indexOf(targetDesc, this.index);\n        }\n        else {\n            for (let i = this.index, e = Math.min(this.top.children.length, i + 5); i < e; i++) {\n                let child = this.top.children[i];\n                if (child.matchesNode(node, outerDeco, innerDeco) && !this.preMatch.matched.has(child)) {\n                    found = i;\n                    break;\n                }\n            }\n        }\n        if (found < 0)\n            return false;\n        this.destroyBetween(this.index, found);\n        this.index++;\n        return true;\n    }\n    updateNodeAt(node, outerDeco, innerDeco, index, view) {\n        let child = this.top.children[index];\n        if (child.dirty == NODE_DIRTY && child.dom == child.contentDOM)\n            child.dirty = CONTENT_DIRTY;\n        if (!child.update(node, outerDeco, innerDeco, view))\n            return false;\n        this.destroyBetween(this.index, index);\n        this.index++;\n        return true;\n    }\n    findIndexWithChild(domNode) {\n        for (;;) {\n            let parent = domNode.parentNode;\n            if (!parent)\n                return -1;\n            if (parent == this.top.contentDOM) {\n                let desc = domNode.pmViewDesc;\n                if (desc)\n                    for (let i = this.index; i < this.top.children.length; i++) {\n                        if (this.top.children[i] == desc)\n                            return i;\n                    }\n                return -1;\n            }\n            domNode = parent;\n        }\n    }\n    // Try to update the next node, if any, to the given data. Checks\n    // pre-matches to avoid overwriting nodes that could still be used.\n    updateNextNode(node, outerDeco, innerDeco, view, index, pos) {\n        for (let i = this.index; i < this.top.children.length; i++) {\n            let next = this.top.children[i];\n            if (next instanceof NodeViewDesc) {\n                let preMatch = this.preMatch.matched.get(next);\n                if (preMatch != null && preMatch != index)\n                    return false;\n                let nextDOM = next.dom, updated;\n                // Can't update if nextDOM is or contains this.lock, except if\n                // it's a text node whose content already matches the new text\n                // and whose decorations match the new ones.\n                let locked = this.isLocked(nextDOM) &&\n                    !(node.isText && next.node && next.node.isText && next.nodeDOM.nodeValue == node.text &&\n                        next.dirty != NODE_DIRTY && sameOuterDeco(outerDeco, next.outerDeco));\n                if (!locked && next.update(node, outerDeco, innerDeco, view)) {\n                    this.destroyBetween(this.index, i);\n                    if (next.dom != nextDOM)\n                        this.changed = true;\n                    this.index++;\n                    return true;\n                }\n                else if (!locked && (updated = this.recreateWrapper(next, node, outerDeco, innerDeco, view, pos))) {\n                    this.destroyBetween(this.index, i);\n                    this.top.children[this.index] = updated;\n                    if (updated.contentDOM) {\n                        updated.dirty = CONTENT_DIRTY;\n                        updated.updateChildren(view, pos + 1);\n                        updated.dirty = NOT_DIRTY;\n                    }\n                    this.changed = true;\n                    this.index++;\n                    return true;\n                }\n                break;\n            }\n        }\n        return false;\n    }\n    // When a node with content is replaced by a different node with\n    // identical content, move over its children.\n    recreateWrapper(next, node, outerDeco, innerDeco, view, pos) {\n        if (next.dirty || node.isAtom || !next.children.length ||\n            !next.node.content.eq(node.content) ||\n            !sameOuterDeco(outerDeco, next.outerDeco) || !innerDeco.eq(next.innerDeco))\n            return null;\n        let wrapper = NodeViewDesc.create(this.top, node, outerDeco, innerDeco, view, pos);\n        if (wrapper.contentDOM) {\n            wrapper.children = next.children;\n            next.children = [];\n            for (let ch of wrapper.children)\n                ch.parent = wrapper;\n        }\n        next.destroy();\n        return wrapper;\n    }\n    // Insert the node as a newly created node desc.\n    addNode(node, outerDeco, innerDeco, view, pos) {\n        let desc = NodeViewDesc.create(this.top, node, outerDeco, innerDeco, view, pos);\n        if (desc.contentDOM)\n            desc.updateChildren(view, pos + 1);\n        this.top.children.splice(this.index++, 0, desc);\n        this.changed = true;\n    }\n    placeWidget(widget, view, pos) {\n        let next = this.index < this.top.children.length ? this.top.children[this.index] : null;\n        if (next && next.matchesWidget(widget) &&\n            (widget == next.widget || !next.widget.type.toDOM.parentNode)) {\n            this.index++;\n        }\n        else {\n            let desc = new WidgetViewDesc(this.top, widget, view, pos);\n            this.top.children.splice(this.index++, 0, desc);\n            this.changed = true;\n        }\n    }\n    // Make sure a textblock looks and behaves correctly in\n    // contentEditable.\n    addTextblockHacks() {\n        let lastChild = this.top.children[this.index - 1], parent = this.top;\n        while (lastChild instanceof MarkViewDesc) {\n            parent = lastChild;\n            lastChild = parent.children[parent.children.length - 1];\n        }\n        if (!lastChild || // Empty textblock\n            !(lastChild instanceof TextViewDesc) ||\n            /\\n$/.test(lastChild.node.text) ||\n            (this.view.requiresGeckoHackNode && /\\s$/.test(lastChild.node.text))) {\n            // Avoid bugs in Safari's cursor drawing (#1165) and Chrome's mouse selection (#1152)\n            if ((safari || chrome) && lastChild && lastChild.dom.contentEditable == \"false\")\n                this.addHackNode(\"IMG\", parent);\n            this.addHackNode(\"BR\", this.top);\n        }\n    }\n    addHackNode(nodeName, parent) {\n        if (parent == this.top && this.index < parent.children.length && parent.children[this.index].matchesHack(nodeName)) {\n            this.index++;\n        }\n        else {\n            let dom = document.createElement(nodeName);\n            if (nodeName == \"IMG\") {\n                dom.className = \"ProseMirror-separator\";\n                dom.alt = \"\";\n            }\n            if (nodeName == \"BR\")\n                dom.className = \"ProseMirror-trailingBreak\";\n            let hack = new TrailingHackViewDesc(this.top, [], dom, null);\n            if (parent != this.top)\n                parent.children.push(hack);\n            else\n                parent.children.splice(this.index++, 0, hack);\n            this.changed = true;\n        }\n    }\n    isLocked(node) {\n        return this.lock && (node == this.lock || node.nodeType == 1 && node.contains(this.lock.parentNode));\n    }\n}\n// Iterate from the end of the fragment and array of descs to find\n// directly matching ones, in order to avoid overeagerly reusing those\n// for other nodes.\nfunction preMatch(frag, parentDesc) {\n    let curDesc = parentDesc, descI = curDesc.children.length;\n    let fI = frag.childCount, matched = new Map, matches = [];\n    outer: while (fI > 0) {\n        let desc;\n        for (;;) {\n            if (descI) {\n                let next = curDesc.children[descI - 1];\n                if (next instanceof MarkViewDesc) {\n                    curDesc = next;\n                    descI = next.children.length;\n                }\n                else {\n                    desc = next;\n                    descI--;\n                    break;\n                }\n            }\n            else if (curDesc == parentDesc) {\n                break outer;\n            }\n            else {\n                descI = curDesc.parent.children.indexOf(curDesc);\n                curDesc = curDesc.parent;\n            }\n        }\n        let node = desc.node;\n        if (!node)\n            continue;\n        if (node != frag.child(fI - 1))\n            break;\n        --fI;\n        matched.set(desc, fI);\n        matches.push(desc);\n    }\n    return { index: fI, matched, matches: matches.reverse() };\n}\nfunction compareSide(a, b) {\n    return a.type.side - b.type.side;\n}\n// This function abstracts iterating over the nodes and decorations in\n// a fragment. Calls `onNode` for each node, with its local and child\n// decorations. Splits text nodes when there is a decoration starting\n// or ending inside of them. Calls `onWidget` for each widget.\nfunction iterDeco(parent, deco, onWidget, onNode) {\n    let locals = deco.locals(parent), offset = 0;\n    // Simple, cheap variant for when there are no local decorations\n    if (locals.length == 0) {\n        for (let i = 0; i < parent.childCount; i++) {\n            let child = parent.child(i);\n            onNode(child, locals, deco.forChild(offset, child), i);\n            offset += child.nodeSize;\n        }\n        return;\n    }\n    let decoIndex = 0, active = [], restNode = null;\n    for (let parentIndex = 0;;) {\n        let widget, widgets;\n        while (decoIndex < locals.length && locals[decoIndex].to == offset) {\n            let next = locals[decoIndex++];\n            if (next.widget) {\n                if (!widget)\n                    widget = next;\n                else\n                    (widgets || (widgets = [widget])).push(next);\n            }\n        }\n        if (widget) {\n            if (widgets) {\n                widgets.sort(compareSide);\n                for (let i = 0; i < widgets.length; i++)\n                    onWidget(widgets[i], parentIndex, !!restNode);\n            }\n            else {\n                onWidget(widget, parentIndex, !!restNode);\n            }\n        }\n        let child, index;\n        if (restNode) {\n            index = -1;\n            child = restNode;\n            restNode = null;\n        }\n        else if (parentIndex < parent.childCount) {\n            index = parentIndex;\n            child = parent.child(parentIndex++);\n        }\n        else {\n            break;\n        }\n        for (let i = 0; i < active.length; i++)\n            if (active[i].to <= offset)\n                active.splice(i--, 1);\n        while (decoIndex < locals.length && locals[decoIndex].from <= offset && locals[decoIndex].to > offset)\n            active.push(locals[decoIndex++]);\n        let end = offset + child.nodeSize;\n        if (child.isText) {\n            let cutAt = end;\n            if (decoIndex < locals.length && locals[decoIndex].from < cutAt)\n                cutAt = locals[decoIndex].from;\n            for (let i = 0; i < active.length; i++)\n                if (active[i].to < cutAt)\n                    cutAt = active[i].to;\n            if (cutAt < end) {\n                restNode = child.cut(cutAt - offset);\n                child = child.cut(0, cutAt - offset);\n                end = cutAt;\n                index = -1;\n            }\n        }\n        else {\n            while (decoIndex < locals.length && locals[decoIndex].to < end)\n                decoIndex++;\n        }\n        let outerDeco = child.isInline && !child.isLeaf ? active.filter(d => !d.inline) : active.slice();\n        onNode(child, outerDeco, deco.forChild(offset, child), index);\n        offset = end;\n    }\n}\n// List markers in Mobile Safari will mysteriously disappear\n// sometimes. This works around that.\nfunction iosHacks(dom) {\n    if (dom.nodeName == \"UL\" || dom.nodeName == \"OL\") {\n        let oldCSS = dom.style.cssText;\n        dom.style.cssText = oldCSS + \"; list-style: square !important\";\n        window.getComputedStyle(dom).listStyle;\n        dom.style.cssText = oldCSS;\n    }\n}\n// Find a piece of text in an inline fragment, overlapping from-to\nfunction findTextInFragment(frag, text, from, to) {\n    for (let i = 0, pos = 0; i < frag.childCount && pos <= to;) {\n        let child = frag.child(i++), childStart = pos;\n        pos += child.nodeSize;\n        if (!child.isText)\n            continue;\n        let str = child.text;\n        while (i < frag.childCount) {\n            let next = frag.child(i++);\n            pos += next.nodeSize;\n            if (!next.isText)\n                break;\n            str += next.text;\n        }\n        if (pos >= from) {\n            if (pos >= to && str.slice(to - text.length - childStart, to - childStart) == text)\n                return to - text.length;\n            let found = childStart < to ? str.lastIndexOf(text, to - childStart - 1) : -1;\n            if (found >= 0 && found + text.length + childStart >= from)\n                return childStart + found;\n            if (from == to && str.length >= (to + text.length) - childStart &&\n                str.slice(to - childStart, to - childStart + text.length) == text)\n                return to;\n        }\n    }\n    return -1;\n}\n// Replace range from-to in an array of view descs with replacement\n// (may be null to just delete). This goes very much against the grain\n// of the rest of this code, which tends to create nodes with the\n// right shape in one go, rather than messing with them after\n// creation, but is necessary in the composition hack.\nfunction replaceNodes(nodes, from, to, view, replacement) {\n    let result = [];\n    for (let i = 0, off = 0; i < nodes.length; i++) {\n        let child = nodes[i], start = off, end = off += child.size;\n        if (start >= to || end <= from) {\n            result.push(child);\n        }\n        else {\n            if (start < from)\n                result.push(child.slice(0, from - start, view));\n            if (replacement) {\n                result.push(replacement);\n                replacement = undefined;\n            }\n            if (end > to)\n                result.push(child.slice(to - start, child.size, view));\n        }\n    }\n    return result;\n}\n\nfunction selectionFromDOM(view, origin = null) {\n    let domSel = view.domSelectionRange(), doc = view.state.doc;\n    if (!domSel.focusNode)\n        return null;\n    let nearestDesc = view.docView.nearestDesc(domSel.focusNode), inWidget = nearestDesc && nearestDesc.size == 0;\n    let head = view.docView.posFromDOM(domSel.focusNode, domSel.focusOffset, 1);\n    if (head < 0)\n        return null;\n    let $head = doc.resolve(head), anchor, selection;\n    if (selectionCollapsed(domSel)) {\n        anchor = head;\n        while (nearestDesc && !nearestDesc.node)\n            nearestDesc = nearestDesc.parent;\n        let nearestDescNode = nearestDesc.node;\n        if (nearestDesc && nearestDescNode.isAtom && NodeSelection.isSelectable(nearestDescNode) && nearestDesc.parent\n            && !(nearestDescNode.isInline && isOnEdge(domSel.focusNode, domSel.focusOffset, nearestDesc.dom))) {\n            let pos = nearestDesc.posBefore;\n            selection = new NodeSelection(head == pos ? $head : doc.resolve(pos));\n        }\n    }\n    else {\n        if (domSel instanceof view.dom.ownerDocument.defaultView.Selection && domSel.rangeCount > 1) {\n            let min = head, max = head;\n            for (let i = 0; i < domSel.rangeCount; i++) {\n                let range = domSel.getRangeAt(i);\n                min = Math.min(min, view.docView.posFromDOM(range.startContainer, range.startOffset, 1));\n                max = Math.max(max, view.docView.posFromDOM(range.endContainer, range.endOffset, -1));\n            }\n            if (min < 0)\n                return null;\n            [anchor, head] = max == view.state.selection.anchor ? [max, min] : [min, max];\n            $head = doc.resolve(head);\n        }\n        else {\n            anchor = view.docView.posFromDOM(domSel.anchorNode, domSel.anchorOffset, 1);\n        }\n        if (anchor < 0)\n            return null;\n    }\n    let $anchor = doc.resolve(anchor);\n    if (!selection) {\n        let bias = origin == \"pointer\" || (view.state.selection.head < $head.pos && !inWidget) ? 1 : -1;\n        selection = selectionBetween(view, $anchor, $head, bias);\n    }\n    return selection;\n}\nfunction editorOwnsSelection(view) {\n    return view.editable ? view.hasFocus() :\n        hasSelection(view) && document.activeElement && document.activeElement.contains(view.dom);\n}\nfunction selectionToDOM(view, force = false) {\n    let sel = view.state.selection;\n    syncNodeSelection(view, sel);\n    if (!editorOwnsSelection(view))\n        return;\n    // The delayed drag selection causes issues with Cell Selections\n    // in Safari. And the drag selection delay is to workarond issues\n    // which only present in Chrome.\n    if (!force && view.input.mouseDown && view.input.mouseDown.allowDefault && chrome) {\n        let domSel = view.domSelectionRange(), curSel = view.domObserver.currentSelection;\n        if (domSel.anchorNode && curSel.anchorNode &&\n            isEquivalentPosition(domSel.anchorNode, domSel.anchorOffset, curSel.anchorNode, curSel.anchorOffset)) {\n            view.input.mouseDown.delayedSelectionSync = true;\n            view.domObserver.setCurSelection();\n            return;\n        }\n    }\n    view.domObserver.disconnectSelection();\n    if (view.cursorWrapper) {\n        selectCursorWrapper(view);\n    }\n    else {\n        let { anchor, head } = sel, resetEditableFrom, resetEditableTo;\n        if (brokenSelectBetweenUneditable && !(sel instanceof TextSelection)) {\n            if (!sel.$from.parent.inlineContent)\n                resetEditableFrom = temporarilyEditableNear(view, sel.from);\n            if (!sel.empty && !sel.$from.parent.inlineContent)\n                resetEditableTo = temporarilyEditableNear(view, sel.to);\n        }\n        view.docView.setSelection(anchor, head, view, force);\n        if (brokenSelectBetweenUneditable) {\n            if (resetEditableFrom)\n                resetEditable(resetEditableFrom);\n            if (resetEditableTo)\n                resetEditable(resetEditableTo);\n        }\n        if (sel.visible) {\n            view.dom.classList.remove(\"ProseMirror-hideselection\");\n        }\n        else {\n            view.dom.classList.add(\"ProseMirror-hideselection\");\n            if (\"onselectionchange\" in document)\n                removeClassOnSelectionChange(view);\n        }\n    }\n    view.domObserver.setCurSelection();\n    view.domObserver.connectSelection();\n}\n// Kludge to work around Webkit not allowing a selection to start/end\n// between non-editable block nodes. We briefly make something\n// editable, set the selection, then set it uneditable again.\nconst brokenSelectBetweenUneditable = safari || chrome && chrome_version < 63;\nfunction temporarilyEditableNear(view, pos) {\n    let { node, offset } = view.docView.domFromPos(pos, 0);\n    let after = offset < node.childNodes.length ? node.childNodes[offset] : null;\n    let before = offset ? node.childNodes[offset - 1] : null;\n    if (safari && after && after.contentEditable == \"false\")\n        return setEditable(after);\n    if ((!after || after.contentEditable == \"false\") &&\n        (!before || before.contentEditable == \"false\")) {\n        if (after)\n            return setEditable(after);\n        else if (before)\n            return setEditable(before);\n    }\n}\nfunction setEditable(element) {\n    element.contentEditable = \"true\";\n    if (safari && element.draggable) {\n        element.draggable = false;\n        element.wasDraggable = true;\n    }\n    return element;\n}\nfunction resetEditable(element) {\n    element.contentEditable = \"false\";\n    if (element.wasDraggable) {\n        element.draggable = true;\n        element.wasDraggable = null;\n    }\n}\nfunction removeClassOnSelectionChange(view) {\n    let doc = view.dom.ownerDocument;\n    doc.removeEventListener(\"selectionchange\", view.input.hideSelectionGuard);\n    let domSel = view.domSelectionRange();\n    let node = domSel.anchorNode, offset = domSel.anchorOffset;\n    doc.addEventListener(\"selectionchange\", view.input.hideSelectionGuard = () => {\n        if (domSel.anchorNode != node || domSel.anchorOffset != offset) {\n            doc.removeEventListener(\"selectionchange\", view.input.hideSelectionGuard);\n            setTimeout(() => {\n                if (!editorOwnsSelection(view) || view.state.selection.visible)\n                    view.dom.classList.remove(\"ProseMirror-hideselection\");\n            }, 20);\n        }\n    });\n}\nfunction selectCursorWrapper(view) {\n    let domSel = view.domSelection();\n    if (!domSel)\n        return;\n    let node = view.cursorWrapper.dom, img = node.nodeName == \"IMG\";\n    if (img)\n        domSel.collapse(node.parentNode, domIndex(node) + 1);\n    else\n        domSel.collapse(node, 0);\n    // Kludge to kill 'control selection' in IE11 when selecting an\n    // invisible cursor wrapper, since that would result in those weird\n    // resize handles and a selection that considers the absolutely\n    // positioned wrapper, rather than the root editable node, the\n    // focused element.\n    if (!img && !view.state.selection.visible && ie && ie_version <= 11) {\n        node.disabled = true;\n        node.disabled = false;\n    }\n}\nfunction syncNodeSelection(view, sel) {\n    if (sel instanceof NodeSelection) {\n        let desc = view.docView.descAt(sel.from);\n        if (desc != view.lastSelectedViewDesc) {\n            clearNodeSelection(view);\n            if (desc)\n                desc.selectNode();\n            view.lastSelectedViewDesc = desc;\n        }\n    }\n    else {\n        clearNodeSelection(view);\n    }\n}\n// Clear all DOM statefulness of the last node selection.\nfunction clearNodeSelection(view) {\n    if (view.lastSelectedViewDesc) {\n        if (view.lastSelectedViewDesc.parent)\n            view.lastSelectedViewDesc.deselectNode();\n        view.lastSelectedViewDesc = undefined;\n    }\n}\nfunction selectionBetween(view, $anchor, $head, bias) {\n    return view.someProp(\"createSelectionBetween\", f => f(view, $anchor, $head))\n        || TextSelection.between($anchor, $head, bias);\n}\nfunction hasFocusAndSelection(view) {\n    if (view.editable && !view.hasFocus())\n        return false;\n    return hasSelection(view);\n}\nfunction hasSelection(view) {\n    let sel = view.domSelectionRange();\n    if (!sel.anchorNode)\n        return false;\n    try {\n        // Firefox will raise 'permission denied' errors when accessing\n        // properties of `sel.anchorNode` when it's in a generated CSS\n        // element.\n        return view.dom.contains(sel.anchorNode.nodeType == 3 ? sel.anchorNode.parentNode : sel.anchorNode) &&\n            (view.editable || view.dom.contains(sel.focusNode.nodeType == 3 ? sel.focusNode.parentNode : sel.focusNode));\n    }\n    catch (_) {\n        return false;\n    }\n}\nfunction anchorInRightPlace(view) {\n    let anchorDOM = view.docView.domFromPos(view.state.selection.anchor, 0);\n    let domSel = view.domSelectionRange();\n    return isEquivalentPosition(anchorDOM.node, anchorDOM.offset, domSel.anchorNode, domSel.anchorOffset);\n}\n\nfunction moveSelectionBlock(state, dir) {\n    let { $anchor, $head } = state.selection;\n    let $side = dir > 0 ? $anchor.max($head) : $anchor.min($head);\n    let $start = !$side.parent.inlineContent ? $side : $side.depth ? state.doc.resolve(dir > 0 ? $side.after() : $side.before()) : null;\n    return $start && Selection.findFrom($start, dir);\n}\nfunction apply(view, sel) {\n    view.dispatch(view.state.tr.setSelection(sel).scrollIntoView());\n    return true;\n}\nfunction selectHorizontally(view, dir, mods) {\n    let sel = view.state.selection;\n    if (sel instanceof TextSelection) {\n        if (mods.indexOf(\"s\") > -1) {\n            let { $head } = sel, node = $head.textOffset ? null : dir < 0 ? $head.nodeBefore : $head.nodeAfter;\n            if (!node || node.isText || !node.isLeaf)\n                return false;\n            let $newHead = view.state.doc.resolve($head.pos + node.nodeSize * (dir < 0 ? -1 : 1));\n            return apply(view, new TextSelection(sel.$anchor, $newHead));\n        }\n        else if (!sel.empty) {\n            return false;\n        }\n        else if (view.endOfTextblock(dir > 0 ? \"forward\" : \"backward\")) {\n            let next = moveSelectionBlock(view.state, dir);\n            if (next && (next instanceof NodeSelection))\n                return apply(view, next);\n            return false;\n        }\n        else if (!(mac && mods.indexOf(\"m\") > -1)) {\n            let $head = sel.$head, node = $head.textOffset ? null : dir < 0 ? $head.nodeBefore : $head.nodeAfter, desc;\n            if (!node || node.isText)\n                return false;\n            let nodePos = dir < 0 ? $head.pos - node.nodeSize : $head.pos;\n            if (!(node.isAtom || (desc = view.docView.descAt(nodePos)) && !desc.contentDOM))\n                return false;\n            if (NodeSelection.isSelectable(node)) {\n                return apply(view, new NodeSelection(dir < 0 ? view.state.doc.resolve($head.pos - node.nodeSize) : $head));\n            }\n            else if (webkit) {\n                // Chrome and Safari will introduce extra pointless cursor\n                // positions around inline uneditable nodes, so we have to\n                // take over and move the cursor past them (#937)\n                return apply(view, new TextSelection(view.state.doc.resolve(dir < 0 ? nodePos : nodePos + node.nodeSize)));\n            }\n            else {\n                return false;\n            }\n        }\n    }\n    else if (sel instanceof NodeSelection && sel.node.isInline) {\n        return apply(view, new TextSelection(dir > 0 ? sel.$to : sel.$from));\n    }\n    else {\n        let next = moveSelectionBlock(view.state, dir);\n        if (next)\n            return apply(view, next);\n        return false;\n    }\n}\nfunction nodeLen(node) {\n    return node.nodeType == 3 ? node.nodeValue.length : node.childNodes.length;\n}\nfunction isIgnorable(dom, dir) {\n    let desc = dom.pmViewDesc;\n    return desc && desc.size == 0 && (dir < 0 || dom.nextSibling || dom.nodeName != \"BR\");\n}\nfunction skipIgnoredNodes(view, dir) {\n    return dir < 0 ? skipIgnoredNodesBefore(view) : skipIgnoredNodesAfter(view);\n}\n// Make sure the cursor isn't directly after one or more ignored\n// nodes, which will confuse the browser's cursor motion logic.\nfunction skipIgnoredNodesBefore(view) {\n    let sel = view.domSelectionRange();\n    let node = sel.focusNode, offset = sel.focusOffset;\n    if (!node)\n        return;\n    let moveNode, moveOffset, force = false;\n    // Gecko will do odd things when the selection is directly in front\n    // of a non-editable node, so in that case, move it into the next\n    // node if possible. Issue prosemirror/prosemirror#832.\n    if (gecko && node.nodeType == 1 && offset < nodeLen(node) && isIgnorable(node.childNodes[offset], -1))\n        force = true;\n    for (;;) {\n        if (offset > 0) {\n            if (node.nodeType != 1) {\n                break;\n            }\n            else {\n                let before = node.childNodes[offset - 1];\n                if (isIgnorable(before, -1)) {\n                    moveNode = node;\n                    moveOffset = --offset;\n                }\n                else if (before.nodeType == 3) {\n                    node = before;\n                    offset = node.nodeValue.length;\n                }\n                else\n                    break;\n            }\n        }\n        else if (isBlockNode(node)) {\n            break;\n        }\n        else {\n            let prev = node.previousSibling;\n            while (prev && isIgnorable(prev, -1)) {\n                moveNode = node.parentNode;\n                moveOffset = domIndex(prev);\n                prev = prev.previousSibling;\n            }\n            if (!prev) {\n                node = node.parentNode;\n                if (node == view.dom)\n                    break;\n                offset = 0;\n            }\n            else {\n                node = prev;\n                offset = nodeLen(node);\n            }\n        }\n    }\n    if (force)\n        setSelFocus(view, node, offset);\n    else if (moveNode)\n        setSelFocus(view, moveNode, moveOffset);\n}\n// Make sure the cursor isn't directly before one or more ignored\n// nodes.\nfunction skipIgnoredNodesAfter(view) {\n    let sel = view.domSelectionRange();\n    let node = sel.focusNode, offset = sel.focusOffset;\n    if (!node)\n        return;\n    let len = nodeLen(node);\n    let moveNode, moveOffset;\n    for (;;) {\n        if (offset < len) {\n            if (node.nodeType != 1)\n                break;\n            let after = node.childNodes[offset];\n            if (isIgnorable(after, 1)) {\n                moveNode = node;\n                moveOffset = ++offset;\n            }\n            else\n                break;\n        }\n        else if (isBlockNode(node)) {\n            break;\n        }\n        else {\n            let next = node.nextSibling;\n            while (next && isIgnorable(next, 1)) {\n                moveNode = next.parentNode;\n                moveOffset = domIndex(next) + 1;\n                next = next.nextSibling;\n            }\n            if (!next) {\n                node = node.parentNode;\n                if (node == view.dom)\n                    break;\n                offset = len = 0;\n            }\n            else {\n                node = next;\n                offset = 0;\n                len = nodeLen(node);\n            }\n        }\n    }\n    if (moveNode)\n        setSelFocus(view, moveNode, moveOffset);\n}\nfunction isBlockNode(dom) {\n    let desc = dom.pmViewDesc;\n    return desc && desc.node && desc.node.isBlock;\n}\nfunction textNodeAfter(node, offset) {\n    while (node && offset == node.childNodes.length && !hasBlockDesc(node)) {\n        offset = domIndex(node) + 1;\n        node = node.parentNode;\n    }\n    while (node && offset < node.childNodes.length) {\n        let next = node.childNodes[offset];\n        if (next.nodeType == 3)\n            return next;\n        if (next.nodeType == 1 && next.contentEditable == \"false\")\n            break;\n        node = next;\n        offset = 0;\n    }\n}\nfunction textNodeBefore(node, offset) {\n    while (node && !offset && !hasBlockDesc(node)) {\n        offset = domIndex(node);\n        node = node.parentNode;\n    }\n    while (node && offset) {\n        let next = node.childNodes[offset - 1];\n        if (next.nodeType == 3)\n            return next;\n        if (next.nodeType == 1 && next.contentEditable == \"false\")\n            break;\n        node = next;\n        offset = node.childNodes.length;\n    }\n}\nfunction setSelFocus(view, node, offset) {\n    if (node.nodeType != 3) {\n        let before, after;\n        if (after = textNodeAfter(node, offset)) {\n            node = after;\n            offset = 0;\n        }\n        else if (before = textNodeBefore(node, offset)) {\n            node = before;\n            offset = before.nodeValue.length;\n        }\n    }\n    let sel = view.domSelection();\n    if (!sel)\n        return;\n    if (selectionCollapsed(sel)) {\n        let range = document.createRange();\n        range.setEnd(node, offset);\n        range.setStart(node, offset);\n        sel.removeAllRanges();\n        sel.addRange(range);\n    }\n    else if (sel.extend) {\n        sel.extend(node, offset);\n    }\n    view.domObserver.setCurSelection();\n    let { state } = view;\n    // If no state update ends up happening, reset the selection.\n    setTimeout(() => {\n        if (view.state == state)\n            selectionToDOM(view);\n    }, 50);\n}\nfunction findDirection(view, pos) {\n    let $pos = view.state.doc.resolve(pos);\n    if (!(chrome || windows) && $pos.parent.inlineContent) {\n        let coords = view.coordsAtPos(pos);\n        if (pos > $pos.start()) {\n            let before = view.coordsAtPos(pos - 1);\n            let mid = (before.top + before.bottom) / 2;\n            if (mid > coords.top && mid < coords.bottom && Math.abs(before.left - coords.left) > 1)\n                return before.left < coords.left ? \"ltr\" : \"rtl\";\n        }\n        if (pos < $pos.end()) {\n            let after = view.coordsAtPos(pos + 1);\n            let mid = (after.top + after.bottom) / 2;\n            if (mid > coords.top && mid < coords.bottom && Math.abs(after.left - coords.left) > 1)\n                return after.left > coords.left ? \"ltr\" : \"rtl\";\n        }\n    }\n    let computed = getComputedStyle(view.dom).direction;\n    return computed == \"rtl\" ? \"rtl\" : \"ltr\";\n}\n// Check whether vertical selection motion would involve node\n// selections. If so, apply it (if not, the result is left to the\n// browser)\nfunction selectVertically(view, dir, mods) {\n    let sel = view.state.selection;\n    if (sel instanceof TextSelection && !sel.empty || mods.indexOf(\"s\") > -1)\n        return false;\n    if (mac && mods.indexOf(\"m\") > -1)\n        return false;\n    let { $from, $to } = sel;\n    if (!$from.parent.inlineContent || view.endOfTextblock(dir < 0 ? \"up\" : \"down\")) {\n        let next = moveSelectionBlock(view.state, dir);\n        if (next && (next instanceof NodeSelection))\n            return apply(view, next);\n    }\n    if (!$from.parent.inlineContent) {\n        let side = dir < 0 ? $from : $to;\n        let beyond = sel instanceof AllSelection ? Selection.near(side, dir) : Selection.findFrom(side, dir);\n        return beyond ? apply(view, beyond) : false;\n    }\n    return false;\n}\nfunction stopNativeHorizontalDelete(view, dir) {\n    if (!(view.state.selection instanceof TextSelection))\n        return true;\n    let { $head, $anchor, empty } = view.state.selection;\n    if (!$head.sameParent($anchor))\n        return true;\n    if (!empty)\n        return false;\n    if (view.endOfTextblock(dir > 0 ? \"forward\" : \"backward\"))\n        return true;\n    let nextNode = !$head.textOffset && (dir < 0 ? $head.nodeBefore : $head.nodeAfter);\n    if (nextNode && !nextNode.isText) {\n        let tr = view.state.tr;\n        if (dir < 0)\n            tr.delete($head.pos - nextNode.nodeSize, $head.pos);\n        else\n            tr.delete($head.pos, $head.pos + nextNode.nodeSize);\n        view.dispatch(tr);\n        return true;\n    }\n    return false;\n}\nfunction switchEditable(view, node, state) {\n    view.domObserver.stop();\n    node.contentEditable = state;\n    view.domObserver.start();\n}\n// Issue #867 / #1090 / https://bugs.chromium.org/p/chromium/issues/detail?id=903821\n// In which Safari (and at some point in the past, Chrome) does really\n// wrong things when the down arrow is pressed when the cursor is\n// directly at the start of a textblock and has an uneditable node\n// after it\nfunction safariDownArrowBug(view) {\n    if (!safari || view.state.selection.$head.parentOffset > 0)\n        return false;\n    let { focusNode, focusOffset } = view.domSelectionRange();\n    if (focusNode && focusNode.nodeType == 1 && focusOffset == 0 &&\n        focusNode.firstChild && focusNode.firstChild.contentEditable == \"false\") {\n        let child = focusNode.firstChild;\n        switchEditable(view, child, \"true\");\n        setTimeout(() => switchEditable(view, child, \"false\"), 20);\n    }\n    return false;\n}\n// A backdrop key mapping used to make sure we always suppress keys\n// that have a dangerous default effect, even if the commands they are\n// bound to return false, and to make sure that cursor-motion keys\n// find a cursor (as opposed to a node selection) when pressed. For\n// cursor-motion keys, the code in the handlers also takes care of\n// block selections.\nfunction getMods(event) {\n    let result = \"\";\n    if (event.ctrlKey)\n        result += \"c\";\n    if (event.metaKey)\n        result += \"m\";\n    if (event.altKey)\n        result += \"a\";\n    if (event.shiftKey)\n        result += \"s\";\n    return result;\n}\nfunction captureKeyDown(view, event) {\n    let code = event.keyCode, mods = getMods(event);\n    if (code == 8 || (mac && code == 72 && mods == \"c\")) { // Backspace, Ctrl-h on Mac\n        return stopNativeHorizontalDelete(view, -1) || skipIgnoredNodes(view, -1);\n    }\n    else if ((code == 46 && !event.shiftKey) || (mac && code == 68 && mods == \"c\")) { // Delete, Ctrl-d on Mac\n        return stopNativeHorizontalDelete(view, 1) || skipIgnoredNodes(view, 1);\n    }\n    else if (code == 13 || code == 27) { // Enter, Esc\n        return true;\n    }\n    else if (code == 37 || (mac && code == 66 && mods == \"c\")) { // Left arrow, Ctrl-b on Mac\n        let dir = code == 37 ? (findDirection(view, view.state.selection.from) == \"ltr\" ? -1 : 1) : -1;\n        return selectHorizontally(view, dir, mods) || skipIgnoredNodes(view, dir);\n    }\n    else if (code == 39 || (mac && code == 70 && mods == \"c\")) { // Right arrow, Ctrl-f on Mac\n        let dir = code == 39 ? (findDirection(view, view.state.selection.from) == \"ltr\" ? 1 : -1) : 1;\n        return selectHorizontally(view, dir, mods) || skipIgnoredNodes(view, dir);\n    }\n    else if (code == 38 || (mac && code == 80 && mods == \"c\")) { // Up arrow, Ctrl-p on Mac\n        return selectVertically(view, -1, mods) || skipIgnoredNodes(view, -1);\n    }\n    else if (code == 40 || (mac && code == 78 && mods == \"c\")) { // Down arrow, Ctrl-n on Mac\n        return safariDownArrowBug(view) || selectVertically(view, 1, mods) || skipIgnoredNodes(view, 1);\n    }\n    else if (mods == (mac ? \"m\" : \"c\") &&\n        (code == 66 || code == 73 || code == 89 || code == 90)) { // Mod-[biyz]\n        return true;\n    }\n    return false;\n}\n\nfunction serializeForClipboard(view, slice) {\n    view.someProp(\"transformCopied\", f => { slice = f(slice, view); });\n    let context = [], { content, openStart, openEnd } = slice;\n    while (openStart > 1 && openEnd > 1 && content.childCount == 1 && content.firstChild.childCount == 1) {\n        openStart--;\n        openEnd--;\n        let node = content.firstChild;\n        context.push(node.type.name, node.attrs != node.type.defaultAttrs ? node.attrs : null);\n        content = node.content;\n    }\n    let serializer = view.someProp(\"clipboardSerializer\") || DOMSerializer.fromSchema(view.state.schema);\n    let doc = detachedDoc(), wrap = doc.createElement(\"div\");\n    wrap.appendChild(serializer.serializeFragment(content, { document: doc }));\n    let firstChild = wrap.firstChild, needsWrap, wrappers = 0;\n    while (firstChild && firstChild.nodeType == 1 && (needsWrap = wrapMap[firstChild.nodeName.toLowerCase()])) {\n        for (let i = needsWrap.length - 1; i >= 0; i--) {\n            let wrapper = doc.createElement(needsWrap[i]);\n            while (wrap.firstChild)\n                wrapper.appendChild(wrap.firstChild);\n            wrap.appendChild(wrapper);\n            wrappers++;\n        }\n        firstChild = wrap.firstChild;\n    }\n    if (firstChild && firstChild.nodeType == 1)\n        firstChild.setAttribute(\"data-pm-slice\", `${openStart} ${openEnd}${wrappers ? ` -${wrappers}` : \"\"} ${JSON.stringify(context)}`);\n    let text = view.someProp(\"clipboardTextSerializer\", f => f(slice, view)) ||\n        slice.content.textBetween(0, slice.content.size, \"\\n\\n\");\n    return { dom: wrap, text, slice };\n}\n// Read a slice of content from the clipboard (or drop data).\nfunction parseFromClipboard(view, text, html, plainText, $context) {\n    let inCode = $context.parent.type.spec.code;\n    let dom, slice;\n    if (!html && !text)\n        return null;\n    let asText = !!text && (plainText || inCode || !html);\n    if (asText) {\n        view.someProp(\"transformPastedText\", f => { text = f(text, inCode || plainText, view); });\n        if (inCode) {\n            slice = new Slice(Fragment.from(view.state.schema.text(text.replace(/\\r\\n?/g, \"\\n\"))), 0, 0);\n            view.someProp(\"transformPasted\", f => { slice = f(slice, view, true); });\n            return slice;\n        }\n        let parsed = view.someProp(\"clipboardTextParser\", f => f(text, $context, plainText, view));\n        if (parsed) {\n            slice = parsed;\n        }\n        else {\n            let marks = $context.marks();\n            let { schema } = view.state, serializer = DOMSerializer.fromSchema(schema);\n            dom = document.createElement(\"div\");\n            text.split(/(?:\\r\\n?|\\n)+/).forEach(block => {\n                let p = dom.appendChild(document.createElement(\"p\"));\n                if (block)\n                    p.appendChild(serializer.serializeNode(schema.text(block, marks)));\n            });\n        }\n    }\n    else {\n        view.someProp(\"transformPastedHTML\", f => { html = f(html, view); });\n        dom = readHTML(html);\n        if (webkit)\n            restoreReplacedSpaces(dom);\n    }\n    let contextNode = dom && dom.querySelector(\"[data-pm-slice]\");\n    let sliceData = contextNode && /^(\\d+) (\\d+)(?: -(\\d+))? (.*)/.exec(contextNode.getAttribute(\"data-pm-slice\") || \"\");\n    if (sliceData && sliceData[3])\n        for (let i = +sliceData[3]; i > 0; i--) {\n            let child = dom.firstChild;\n            while (child && child.nodeType != 1)\n                child = child.nextSibling;\n            if (!child)\n                break;\n            dom = child;\n        }\n    if (!slice) {\n        let parser = view.someProp(\"clipboardParser\") || view.someProp(\"domParser\") || DOMParser.fromSchema(view.state.schema);\n        slice = parser.parseSlice(dom, {\n            preserveWhitespace: !!(asText || sliceData),\n            context: $context,\n            ruleFromNode(dom) {\n                if (dom.nodeName == \"BR\" && !dom.nextSibling &&\n                    dom.parentNode && !inlineParents.test(dom.parentNode.nodeName))\n                    return { ignore: true };\n                return null;\n            }\n        });\n    }\n    if (sliceData) {\n        slice = addContext(closeSlice(slice, +sliceData[1], +sliceData[2]), sliceData[4]);\n    }\n    else { // HTML wasn't created by ProseMirror. Make sure top-level siblings are coherent\n        slice = Slice.maxOpen(normalizeSiblings(slice.content, $context), true);\n        if (slice.openStart || slice.openEnd) {\n            let openStart = 0, openEnd = 0;\n            for (let node = slice.content.firstChild; openStart < slice.openStart && !node.type.spec.isolating; openStart++, node = node.firstChild) { }\n            for (let node = slice.content.lastChild; openEnd < slice.openEnd && !node.type.spec.isolating; openEnd++, node = node.lastChild) { }\n            slice = closeSlice(slice, openStart, openEnd);\n        }\n    }\n    view.someProp(\"transformPasted\", f => { slice = f(slice, view, asText); });\n    return slice;\n}\nconst inlineParents = /^(a|abbr|acronym|b|cite|code|del|em|i|ins|kbd|label|output|q|ruby|s|samp|span|strong|sub|sup|time|u|tt|var)$/i;\n// Takes a slice parsed with parseSlice, which means there hasn't been\n// any content-expression checking done on the top nodes, tries to\n// find a parent node in the current context that might fit the nodes,\n// and if successful, rebuilds the slice so that it fits into that parent.\n//\n// This addresses the problem that Transform.replace expects a\n// coherent slice, and will fail to place a set of siblings that don't\n// fit anywhere in the schema.\nfunction normalizeSiblings(fragment, $context) {\n    if (fragment.childCount < 2)\n        return fragment;\n    for (let d = $context.depth; d >= 0; d--) {\n        let parent = $context.node(d);\n        let match = parent.contentMatchAt($context.index(d));\n        let lastWrap, result = [];\n        fragment.forEach(node => {\n            if (!result)\n                return;\n            let wrap = match.findWrapping(node.type), inLast;\n            if (!wrap)\n                return result = null;\n            if (inLast = result.length && lastWrap.length && addToSibling(wrap, lastWrap, node, result[result.length - 1], 0)) {\n                result[result.length - 1] = inLast;\n            }\n            else {\n                if (result.length)\n                    result[result.length - 1] = closeRight(result[result.length - 1], lastWrap.length);\n                let wrapped = withWrappers(node, wrap);\n                result.push(wrapped);\n                match = match.matchType(wrapped.type);\n                lastWrap = wrap;\n            }\n        });\n        if (result)\n            return Fragment.from(result);\n    }\n    return fragment;\n}\nfunction withWrappers(node, wrap, from = 0) {\n    for (let i = wrap.length - 1; i >= from; i--)\n        node = wrap[i].create(null, Fragment.from(node));\n    return node;\n}\n// Used to group adjacent nodes wrapped in similar parents by\n// normalizeSiblings into the same parent node\nfunction addToSibling(wrap, lastWrap, node, sibling, depth) {\n    if (depth < wrap.length && depth < lastWrap.length && wrap[depth] == lastWrap[depth]) {\n        let inner = addToSibling(wrap, lastWrap, node, sibling.lastChild, depth + 1);\n        if (inner)\n            return sibling.copy(sibling.content.replaceChild(sibling.childCount - 1, inner));\n        let match = sibling.contentMatchAt(sibling.childCount);\n        if (match.matchType(depth == wrap.length - 1 ? node.type : wrap[depth + 1]))\n            return sibling.copy(sibling.content.append(Fragment.from(withWrappers(node, wrap, depth + 1))));\n    }\n}\nfunction closeRight(node, depth) {\n    if (depth == 0)\n        return node;\n    let fragment = node.content.replaceChild(node.childCount - 1, closeRight(node.lastChild, depth - 1));\n    let fill = node.contentMatchAt(node.childCount).fillBefore(Fragment.empty, true);\n    return node.copy(fragment.append(fill));\n}\nfunction closeRange(fragment, side, from, to, depth, openEnd) {\n    let node = side < 0 ? fragment.firstChild : fragment.lastChild, inner = node.content;\n    if (fragment.childCount > 1)\n        openEnd = 0;\n    if (depth < to - 1)\n        inner = closeRange(inner, side, from, to, depth + 1, openEnd);\n    if (depth >= from)\n        inner = side < 0 ? node.contentMatchAt(0).fillBefore(inner, openEnd <= depth).append(inner)\n            : inner.append(node.contentMatchAt(node.childCount).fillBefore(Fragment.empty, true));\n    return fragment.replaceChild(side < 0 ? 0 : fragment.childCount - 1, node.copy(inner));\n}\nfunction closeSlice(slice, openStart, openEnd) {\n    if (openStart < slice.openStart)\n        slice = new Slice(closeRange(slice.content, -1, openStart, slice.openStart, 0, slice.openEnd), openStart, slice.openEnd);\n    if (openEnd < slice.openEnd)\n        slice = new Slice(closeRange(slice.content, 1, openEnd, slice.openEnd, 0, 0), slice.openStart, openEnd);\n    return slice;\n}\n// Trick from jQuery -- some elements must be wrapped in other\n// elements for innerHTML to work. I.e. if you do `div.innerHTML =\n// \"<td>..</td>\"` the table cells are ignored.\nconst wrapMap = {\n    thead: [\"table\"],\n    tbody: [\"table\"],\n    tfoot: [\"table\"],\n    caption: [\"table\"],\n    colgroup: [\"table\"],\n    col: [\"table\", \"colgroup\"],\n    tr: [\"table\", \"tbody\"],\n    td: [\"table\", \"tbody\", \"tr\"],\n    th: [\"table\", \"tbody\", \"tr\"]\n};\nlet _detachedDoc = null;\nfunction detachedDoc() {\n    return _detachedDoc || (_detachedDoc = document.implementation.createHTMLDocument(\"title\"));\n}\nlet _policy = null;\nfunction maybeWrapTrusted(html) {\n    let trustedTypes = window.trustedTypes;\n    if (!trustedTypes)\n        return html;\n    // With the require-trusted-types-for CSP, Chrome will block\n    // innerHTML, even on a detached document. This wraps the string in\n    // a way that makes the browser allow us to use its parser again.\n    if (!_policy)\n        _policy = trustedTypes.defaultPolicy || trustedTypes.createPolicy(\"ProseMirrorClipboard\", { createHTML: (s) => s });\n    return _policy.createHTML(html);\n}\nfunction readHTML(html) {\n    let metas = /^(\\s*<meta [^>]*>)*/.exec(html);\n    if (metas)\n        html = html.slice(metas[0].length);\n    let elt = detachedDoc().createElement(\"div\");\n    let firstTag = /<([a-z][^>\\s]+)/i.exec(html), wrap;\n    if (wrap = firstTag && wrapMap[firstTag[1].toLowerCase()])\n        html = wrap.map(n => \"<\" + n + \">\").join(\"\") + html + wrap.map(n => \"</\" + n + \">\").reverse().join(\"\");\n    elt.innerHTML = maybeWrapTrusted(html);\n    if (wrap)\n        for (let i = 0; i < wrap.length; i++)\n            elt = elt.querySelector(wrap[i]) || elt;\n    return elt;\n}\n// Webkit browsers do some hard-to-predict replacement of regular\n// spaces with non-breaking spaces when putting content on the\n// clipboard. This tries to convert such non-breaking spaces (which\n// will be wrapped in a plain span on Chrome, a span with class\n// Apple-converted-space on Safari) back to regular spaces.\nfunction restoreReplacedSpaces(dom) {\n    let nodes = dom.querySelectorAll(chrome ? \"span:not([class]):not([style])\" : \"span.Apple-converted-space\");\n    for (let i = 0; i < nodes.length; i++) {\n        let node = nodes[i];\n        if (node.childNodes.length == 1 && node.textContent == \"\\u00a0\" && node.parentNode)\n            node.parentNode.replaceChild(dom.ownerDocument.createTextNode(\" \"), node);\n    }\n}\nfunction addContext(slice, context) {\n    if (!slice.size)\n        return slice;\n    let schema = slice.content.firstChild.type.schema, array;\n    try {\n        array = JSON.parse(context);\n    }\n    catch (e) {\n        return slice;\n    }\n    let { content, openStart, openEnd } = slice;\n    for (let i = array.length - 2; i >= 0; i -= 2) {\n        let type = schema.nodes[array[i]];\n        if (!type || type.hasRequiredAttrs())\n            break;\n        content = Fragment.from(type.create(array[i + 1], content));\n        openStart++;\n        openEnd++;\n    }\n    return new Slice(content, openStart, openEnd);\n}\n\n// A collection of DOM events that occur within the editor, and callback functions\n// to invoke when the event fires.\nconst handlers = {};\nconst editHandlers = {};\nconst passiveHandlers = { touchstart: true, touchmove: true };\nclass InputState {\n    constructor() {\n        this.shiftKey = false;\n        this.mouseDown = null;\n        this.lastKeyCode = null;\n        this.lastKeyCodeTime = 0;\n        this.lastClick = { time: 0, x: 0, y: 0, type: \"\", button: 0 };\n        this.lastSelectionOrigin = null;\n        this.lastSelectionTime = 0;\n        this.lastIOSEnter = 0;\n        this.lastIOSEnterFallbackTimeout = -1;\n        this.lastFocus = 0;\n        this.lastTouch = 0;\n        this.lastChromeDelete = 0;\n        this.composing = false;\n        this.compositionNode = null;\n        this.composingTimeout = -1;\n        this.compositionNodes = [];\n        this.compositionEndedAt = -2e8;\n        this.compositionID = 1;\n        this.badSafariComposition = false;\n        // Set to a composition ID when there are pending changes at compositionend\n        this.compositionPendingChanges = 0;\n        this.domChangeCount = 0;\n        this.eventHandlers = Object.create(null);\n        this.hideSelectionGuard = null;\n    }\n}\nfunction initInput(view) {\n    for (let event in handlers) {\n        let handler = handlers[event];\n        view.dom.addEventListener(event, view.input.eventHandlers[event] = (event) => {\n            if (eventBelongsToView(view, event) && !runCustomHandler(view, event) &&\n                (view.editable || !(event.type in editHandlers)))\n                handler(view, event);\n        }, passiveHandlers[event] ? { passive: true } : undefined);\n    }\n    // On Safari, for reasons beyond my understanding, adding an input\n    // event handler makes an issue where the composition vanishes when\n    // you press enter go away.\n    if (safari)\n        view.dom.addEventListener(\"input\", () => null);\n    ensureListeners(view);\n}\nfunction setSelectionOrigin(view, origin) {\n    view.input.lastSelectionOrigin = origin;\n    view.input.lastSelectionTime = Date.now();\n}\nfunction destroyInput(view) {\n    view.domObserver.stop();\n    for (let type in view.input.eventHandlers)\n        view.dom.removeEventListener(type, view.input.eventHandlers[type]);\n    clearTimeout(view.input.composingTimeout);\n    clearTimeout(view.input.lastIOSEnterFallbackTimeout);\n}\nfunction ensureListeners(view) {\n    view.someProp(\"handleDOMEvents\", currentHandlers => {\n        for (let type in currentHandlers)\n            if (!view.input.eventHandlers[type])\n                view.dom.addEventListener(type, view.input.eventHandlers[type] = event => runCustomHandler(view, event));\n    });\n}\nfunction runCustomHandler(view, event) {\n    return view.someProp(\"handleDOMEvents\", handlers => {\n        let handler = handlers[event.type];\n        return handler ? handler(view, event) || event.defaultPrevented : false;\n    });\n}\nfunction eventBelongsToView(view, event) {\n    if (!event.bubbles)\n        return true;\n    if (event.defaultPrevented)\n        return false;\n    for (let node = event.target; node != view.dom; node = node.parentNode)\n        if (!node || node.nodeType == 11 ||\n            (node.pmViewDesc && node.pmViewDesc.stopEvent(event)))\n            return false;\n    return true;\n}\nfunction dispatchEvent(view, event) {\n    if (!runCustomHandler(view, event) && handlers[event.type] &&\n        (view.editable || !(event.type in editHandlers)))\n        handlers[event.type](view, event);\n}\neditHandlers.keydown = (view, _event) => {\n    let event = _event;\n    view.input.shiftKey = event.keyCode == 16 || event.shiftKey;\n    if (inOrNearComposition(view, event))\n        return;\n    view.input.lastKeyCode = event.keyCode;\n    view.input.lastKeyCodeTime = Date.now();\n    // Suppress enter key events on Chrome Android, because those tend\n    // to be part of a confused sequence of composition events fired,\n    // and handling them eagerly tends to corrupt the input.\n    if (android && chrome && event.keyCode == 13)\n        return;\n    if (event.keyCode != 229)\n        view.domObserver.forceFlush();\n    // On iOS, if we preventDefault enter key presses, the virtual\n    // keyboard gets confused. So the hack here is to set a flag that\n    // makes the DOM change code recognize that what just happens should\n    // be replaced by whatever the Enter key handlers do.\n    if (ios && event.keyCode == 13 && !event.ctrlKey && !event.altKey && !event.metaKey) {\n        let now = Date.now();\n        view.input.lastIOSEnter = now;\n        view.input.lastIOSEnterFallbackTimeout = setTimeout(() => {\n            if (view.input.lastIOSEnter == now) {\n                view.someProp(\"handleKeyDown\", f => f(view, keyEvent(13, \"Enter\")));\n                view.input.lastIOSEnter = 0;\n            }\n        }, 200);\n    }\n    else if (view.someProp(\"handleKeyDown\", f => f(view, event)) || captureKeyDown(view, event)) {\n        event.preventDefault();\n    }\n    else {\n        setSelectionOrigin(view, \"key\");\n    }\n};\neditHandlers.keyup = (view, event) => {\n    if (event.keyCode == 16)\n        view.input.shiftKey = false;\n};\neditHandlers.keypress = (view, _event) => {\n    let event = _event;\n    if (inOrNearComposition(view, event) || !event.charCode ||\n        event.ctrlKey && !event.altKey || mac && event.metaKey)\n        return;\n    if (view.someProp(\"handleKeyPress\", f => f(view, event))) {\n        event.preventDefault();\n        return;\n    }\n    let sel = view.state.selection;\n    if (!(sel instanceof TextSelection) || !sel.$from.sameParent(sel.$to)) {\n        let text = String.fromCharCode(event.charCode);\n        let deflt = () => view.state.tr.insertText(text).scrollIntoView();\n        if (!/[\\r\\n]/.test(text) && !view.someProp(\"handleTextInput\", f => f(view, sel.$from.pos, sel.$to.pos, text, deflt)))\n            view.dispatch(deflt());\n        event.preventDefault();\n    }\n};\nfunction eventCoords(event) { return { left: event.clientX, top: event.clientY }; }\nfunction isNear(event, click) {\n    let dx = click.x - event.clientX, dy = click.y - event.clientY;\n    return dx * dx + dy * dy < 100;\n}\nfunction runHandlerOnContext(view, propName, pos, inside, event) {\n    if (inside == -1)\n        return false;\n    let $pos = view.state.doc.resolve(inside);\n    for (let i = $pos.depth + 1; i > 0; i--) {\n        if (view.someProp(propName, f => i > $pos.depth ? f(view, pos, $pos.nodeAfter, $pos.before(i), event, true)\n            : f(view, pos, $pos.node(i), $pos.before(i), event, false)))\n            return true;\n    }\n    return false;\n}\nfunction updateSelection(view, selection, origin) {\n    if (!view.focused)\n        view.focus();\n    if (view.state.selection.eq(selection))\n        return;\n    let tr = view.state.tr.setSelection(selection);\n    if (origin == \"pointer\")\n        tr.setMeta(\"pointer\", true);\n    view.dispatch(tr);\n}\nfunction selectClickedLeaf(view, inside) {\n    if (inside == -1)\n        return false;\n    let $pos = view.state.doc.resolve(inside), node = $pos.nodeAfter;\n    if (node && node.isAtom && NodeSelection.isSelectable(node)) {\n        updateSelection(view, new NodeSelection($pos), \"pointer\");\n        return true;\n    }\n    return false;\n}\nfunction selectClickedNode(view, inside) {\n    if (inside == -1)\n        return false;\n    let sel = view.state.selection, selectedNode, selectAt;\n    if (sel instanceof NodeSelection)\n        selectedNode = sel.node;\n    let $pos = view.state.doc.resolve(inside);\n    for (let i = $pos.depth + 1; i > 0; i--) {\n        let node = i > $pos.depth ? $pos.nodeAfter : $pos.node(i);\n        if (NodeSelection.isSelectable(node)) {\n            if (selectedNode && sel.$from.depth > 0 &&\n                i >= sel.$from.depth && $pos.before(sel.$from.depth + 1) == sel.$from.pos)\n                selectAt = $pos.before(sel.$from.depth);\n            else\n                selectAt = $pos.before(i);\n            break;\n        }\n    }\n    if (selectAt != null) {\n        updateSelection(view, NodeSelection.create(view.state.doc, selectAt), \"pointer\");\n        return true;\n    }\n    else {\n        return false;\n    }\n}\nfunction handleSingleClick(view, pos, inside, event, selectNode) {\n    return runHandlerOnContext(view, \"handleClickOn\", pos, inside, event) ||\n        view.someProp(\"handleClick\", f => f(view, pos, event)) ||\n        (selectNode ? selectClickedNode(view, inside) : selectClickedLeaf(view, inside));\n}\nfunction handleDoubleClick(view, pos, inside, event) {\n    return runHandlerOnContext(view, \"handleDoubleClickOn\", pos, inside, event) ||\n        view.someProp(\"handleDoubleClick\", f => f(view, pos, event));\n}\nfunction handleTripleClick(view, pos, inside, event) {\n    return runHandlerOnContext(view, \"handleTripleClickOn\", pos, inside, event) ||\n        view.someProp(\"handleTripleClick\", f => f(view, pos, event)) ||\n        defaultTripleClick(view, inside, event);\n}\nfunction defaultTripleClick(view, inside, event) {\n    if (event.button != 0)\n        return false;\n    let doc = view.state.doc;\n    if (inside == -1) {\n        if (doc.inlineContent) {\n            updateSelection(view, TextSelection.create(doc, 0, doc.content.size), \"pointer\");\n            return true;\n        }\n        return false;\n    }\n    let $pos = doc.resolve(inside);\n    for (let i = $pos.depth + 1; i > 0; i--) {\n        let node = i > $pos.depth ? $pos.nodeAfter : $pos.node(i);\n        let nodePos = $pos.before(i);\n        if (node.inlineContent)\n            updateSelection(view, TextSelection.create(doc, nodePos + 1, nodePos + 1 + node.content.size), \"pointer\");\n        else if (NodeSelection.isSelectable(node))\n            updateSelection(view, NodeSelection.create(doc, nodePos), \"pointer\");\n        else\n            continue;\n        return true;\n    }\n}\nfunction forceDOMFlush(view) {\n    return endComposition(view);\n}\nconst selectNodeModifier = mac ? \"metaKey\" : \"ctrlKey\";\nhandlers.mousedown = (view, _event) => {\n    let event = _event;\n    view.input.shiftKey = event.shiftKey;\n    let flushed = forceDOMFlush(view);\n    let now = Date.now(), type = \"singleClick\";\n    if (now - view.input.lastClick.time < 500 && isNear(event, view.input.lastClick) && !event[selectNodeModifier] &&\n        view.input.lastClick.button == event.button) {\n        if (view.input.lastClick.type == \"singleClick\")\n            type = \"doubleClick\";\n        else if (view.input.lastClick.type == \"doubleClick\")\n            type = \"tripleClick\";\n    }\n    view.input.lastClick = { time: now, x: event.clientX, y: event.clientY, type, button: event.button };\n    let pos = view.posAtCoords(eventCoords(event));\n    if (!pos)\n        return;\n    if (type == \"singleClick\") {\n        if (view.input.mouseDown)\n            view.input.mouseDown.done();\n        view.input.mouseDown = new MouseDown(view, pos, event, !!flushed);\n    }\n    else if ((type == \"doubleClick\" ? handleDoubleClick : handleTripleClick)(view, pos.pos, pos.inside, event)) {\n        event.preventDefault();\n    }\n    else {\n        setSelectionOrigin(view, \"pointer\");\n    }\n};\nclass MouseDown {\n    constructor(view, pos, event, flushed) {\n        this.view = view;\n        this.pos = pos;\n        this.event = event;\n        this.flushed = flushed;\n        this.delayedSelectionSync = false;\n        this.mightDrag = null;\n        this.startDoc = view.state.doc;\n        this.selectNode = !!event[selectNodeModifier];\n        this.allowDefault = event.shiftKey;\n        let targetNode, targetPos;\n        if (pos.inside > -1) {\n            targetNode = view.state.doc.nodeAt(pos.inside);\n            targetPos = pos.inside;\n        }\n        else {\n            let $pos = view.state.doc.resolve(pos.pos);\n            targetNode = $pos.parent;\n            targetPos = $pos.depth ? $pos.before() : 0;\n        }\n        const target = flushed ? null : event.target;\n        const targetDesc = target ? view.docView.nearestDesc(target, true) : null;\n        this.target = targetDesc && targetDesc.nodeDOM.nodeType == 1 ? targetDesc.nodeDOM : null;\n        let { selection } = view.state;\n        if (event.button == 0 &&\n            targetNode.type.spec.draggable && targetNode.type.spec.selectable !== false ||\n            selection instanceof NodeSelection && selection.from <= targetPos && selection.to > targetPos)\n            this.mightDrag = {\n                node: targetNode,\n                pos: targetPos,\n                addAttr: !!(this.target && !this.target.draggable),\n                setUneditable: !!(this.target && gecko && !this.target.hasAttribute(\"contentEditable\"))\n            };\n        if (this.target && this.mightDrag && (this.mightDrag.addAttr || this.mightDrag.setUneditable)) {\n            this.view.domObserver.stop();\n            if (this.mightDrag.addAttr)\n                this.target.draggable = true;\n            if (this.mightDrag.setUneditable)\n                setTimeout(() => {\n                    if (this.view.input.mouseDown == this)\n                        this.target.setAttribute(\"contentEditable\", \"false\");\n                }, 20);\n            this.view.domObserver.start();\n        }\n        view.root.addEventListener(\"mouseup\", this.up = this.up.bind(this));\n        view.root.addEventListener(\"mousemove\", this.move = this.move.bind(this));\n        setSelectionOrigin(view, \"pointer\");\n    }\n    done() {\n        this.view.root.removeEventListener(\"mouseup\", this.up);\n        this.view.root.removeEventListener(\"mousemove\", this.move);\n        if (this.mightDrag && this.target) {\n            this.view.domObserver.stop();\n            if (this.mightDrag.addAttr)\n                this.target.removeAttribute(\"draggable\");\n            if (this.mightDrag.setUneditable)\n                this.target.removeAttribute(\"contentEditable\");\n            this.view.domObserver.start();\n        }\n        if (this.delayedSelectionSync)\n            setTimeout(() => selectionToDOM(this.view));\n        this.view.input.mouseDown = null;\n    }\n    up(event) {\n        this.done();\n        if (!this.view.dom.contains(event.target))\n            return;\n        let pos = this.pos;\n        if (this.view.state.doc != this.startDoc)\n            pos = this.view.posAtCoords(eventCoords(event));\n        this.updateAllowDefault(event);\n        if (this.allowDefault || !pos) {\n            setSelectionOrigin(this.view, \"pointer\");\n        }\n        else if (handleSingleClick(this.view, pos.pos, pos.inside, event, this.selectNode)) {\n            event.preventDefault();\n        }\n        else if (event.button == 0 &&\n            (this.flushed ||\n                // Safari ignores clicks on draggable elements\n                (safari && this.mightDrag && !this.mightDrag.node.isAtom) ||\n                // Chrome will sometimes treat a node selection as a\n                // cursor, but still report that the node is selected\n                // when asked through getSelection. You'll then get a\n                // situation where clicking at the point where that\n                // (hidden) cursor is doesn't change the selection, and\n                // thus doesn't get a reaction from ProseMirror. This\n                // works around that.\n                (chrome && !this.view.state.selection.visible &&\n                    Math.min(Math.abs(pos.pos - this.view.state.selection.from), Math.abs(pos.pos - this.view.state.selection.to)) <= 2))) {\n            updateSelection(this.view, Selection.near(this.view.state.doc.resolve(pos.pos)), \"pointer\");\n            event.preventDefault();\n        }\n        else {\n            setSelectionOrigin(this.view, \"pointer\");\n        }\n    }\n    move(event) {\n        this.updateAllowDefault(event);\n        setSelectionOrigin(this.view, \"pointer\");\n        if (event.buttons == 0)\n            this.done();\n    }\n    updateAllowDefault(event) {\n        if (!this.allowDefault && (Math.abs(this.event.x - event.clientX) > 4 ||\n            Math.abs(this.event.y - event.clientY) > 4))\n            this.allowDefault = true;\n    }\n}\nhandlers.touchstart = view => {\n    view.input.lastTouch = Date.now();\n    forceDOMFlush(view);\n    setSelectionOrigin(view, \"pointer\");\n};\nhandlers.touchmove = view => {\n    view.input.lastTouch = Date.now();\n    setSelectionOrigin(view, \"pointer\");\n};\nhandlers.contextmenu = view => forceDOMFlush(view);\nfunction inOrNearComposition(view, event) {\n    if (view.composing)\n        return true;\n    // See https://www.stum.de/2016/06/24/handling-ime-events-in-javascript/.\n    // On Japanese input method editors (IMEs), the Enter key is used to confirm character\n    // selection. On Safari, when Enter is pressed, compositionend and keydown events are\n    // emitted. The keydown event triggers newline insertion, which we don't want.\n    // This method returns true if the keydown event should be ignored.\n    // We only ignore it once, as pressing Enter a second time *should* insert a newline.\n    // Furthermore, the keydown event timestamp must be close to the compositionEndedAt timestamp.\n    // This guards against the case where compositionend is triggered without the keyboard\n    // (e.g. character confirmation may be done with the mouse), and keydown is triggered\n    // afterwards- we wouldn't want to ignore the keydown event in this case.\n    if (safari && Math.abs(event.timeStamp - view.input.compositionEndedAt) < 500) {\n        view.input.compositionEndedAt = -2e8;\n        return true;\n    }\n    return false;\n}\n// Drop active composition after 5 seconds of inactivity on Android\nconst timeoutComposition = android ? 5000 : -1;\neditHandlers.compositionstart = editHandlers.compositionupdate = view => {\n    if (!view.composing) {\n        view.domObserver.flush();\n        let { state } = view, $pos = state.selection.$to;\n        if (state.selection instanceof TextSelection &&\n            (state.storedMarks ||\n                (!$pos.textOffset && $pos.parentOffset && $pos.nodeBefore.marks.some(m => m.type.spec.inclusive === false)) ||\n                chrome && windows && selectionBeforeUneditable(view))) { // Issue #1500\n            // Need to wrap the cursor in mark nodes different from the ones in the DOM context\n            view.markCursor = view.state.storedMarks || $pos.marks();\n            endComposition(view, true);\n            view.markCursor = null;\n        }\n        else {\n            endComposition(view, !state.selection.empty);\n            // In firefox, if the cursor is after but outside a marked node,\n            // the inserted text won't inherit the marks. So this moves it\n            // inside if necessary.\n            if (gecko && state.selection.empty && $pos.parentOffset && !$pos.textOffset && $pos.nodeBefore.marks.length) {\n                let sel = view.domSelectionRange();\n                for (let node = sel.focusNode, offset = sel.focusOffset; node && node.nodeType == 1 && offset != 0;) {\n                    let before = offset < 0 ? node.lastChild : node.childNodes[offset - 1];\n                    if (!before)\n                        break;\n                    if (before.nodeType == 3) {\n                        let sel = view.domSelection();\n                        if (sel)\n                            sel.collapse(before, before.nodeValue.length);\n                        break;\n                    }\n                    else {\n                        node = before;\n                        offset = -1;\n                    }\n                }\n            }\n        }\n        view.input.composing = true;\n    }\n    scheduleComposeEnd(view, timeoutComposition);\n};\nfunction selectionBeforeUneditable(view) {\n    let { focusNode, focusOffset } = view.domSelectionRange();\n    if (!focusNode || focusNode.nodeType != 1 || focusOffset >= focusNode.childNodes.length)\n        return false;\n    let next = focusNode.childNodes[focusOffset];\n    return next.nodeType == 1 && next.contentEditable == \"false\";\n}\neditHandlers.compositionend = (view, event) => {\n    if (view.composing) {\n        view.input.composing = false;\n        view.input.compositionEndedAt = event.timeStamp;\n        view.input.compositionPendingChanges = view.domObserver.pendingRecords().length ? view.input.compositionID : 0;\n        view.input.compositionNode = null;\n        if (view.input.badSafariComposition)\n            view.domObserver.forceFlush();\n        else if (view.input.compositionPendingChanges)\n            Promise.resolve().then(() => view.domObserver.flush());\n        view.input.compositionID++;\n        scheduleComposeEnd(view, 20);\n    }\n};\nfunction scheduleComposeEnd(view, delay) {\n    clearTimeout(view.input.composingTimeout);\n    if (delay > -1)\n        view.input.composingTimeout = setTimeout(() => endComposition(view), delay);\n}\nfunction clearComposition(view) {\n    if (view.composing) {\n        view.input.composing = false;\n        view.input.compositionEndedAt = timestampFromCustomEvent();\n    }\n    while (view.input.compositionNodes.length > 0)\n        view.input.compositionNodes.pop().markParentsDirty();\n}\nfunction findCompositionNode(view) {\n    let sel = view.domSelectionRange();\n    if (!sel.focusNode)\n        return null;\n    let textBefore = textNodeBefore$1(sel.focusNode, sel.focusOffset);\n    let textAfter = textNodeAfter$1(sel.focusNode, sel.focusOffset);\n    if (textBefore && textAfter && textBefore != textAfter) {\n        let descAfter = textAfter.pmViewDesc, lastChanged = view.domObserver.lastChangedTextNode;\n        if (textBefore == lastChanged || textAfter == lastChanged)\n            return lastChanged;\n        if (!descAfter || !descAfter.isText(textAfter.nodeValue)) {\n            return textAfter;\n        }\n        else if (view.input.compositionNode == textAfter) {\n            let descBefore = textBefore.pmViewDesc;\n            if (!(!descBefore || !descBefore.isText(textBefore.nodeValue)))\n                return textAfter;\n        }\n    }\n    return textBefore || textAfter;\n}\nfunction timestampFromCustomEvent() {\n    let event = document.createEvent(\"Event\");\n    event.initEvent(\"event\", true, true);\n    return event.timeStamp;\n}\n/**\n@internal\n*/\nfunction endComposition(view, restarting = false) {\n    if (android && view.domObserver.flushingSoon >= 0)\n        return;\n    view.domObserver.forceFlush();\n    clearComposition(view);\n    if (restarting || view.docView && view.docView.dirty) {\n        let sel = selectionFromDOM(view), cur = view.state.selection;\n        if (sel && !sel.eq(cur))\n            view.dispatch(view.state.tr.setSelection(sel));\n        else if ((view.markCursor || restarting) && !cur.$from.node(cur.$from.sharedDepth(cur.to)).inlineContent)\n            view.dispatch(view.state.tr.deleteSelection());\n        else\n            view.updateState(view.state);\n        return true;\n    }\n    return false;\n}\nfunction captureCopy(view, dom) {\n    // The extra wrapper is somehow necessary on IE/Edge to prevent the\n    // content from being mangled when it is put onto the clipboard\n    if (!view.dom.parentNode)\n        return;\n    let wrap = view.dom.parentNode.appendChild(document.createElement(\"div\"));\n    wrap.appendChild(dom);\n    wrap.style.cssText = \"position: fixed; left: -10000px; top: 10px\";\n    let sel = getSelection(), range = document.createRange();\n    range.selectNodeContents(dom);\n    // Done because IE will fire a selectionchange moving the selection\n    // to its start when removeAllRanges is called and the editor still\n    // has focus (which will mess up the editor's selection state).\n    view.dom.blur();\n    sel.removeAllRanges();\n    sel.addRange(range);\n    setTimeout(() => {\n        if (wrap.parentNode)\n            wrap.parentNode.removeChild(wrap);\n        view.focus();\n    }, 50);\n}\n// This is very crude, but unfortunately both these browsers _pretend_\n// that they have a clipboard API—all the objects and methods are\n// there, they just don't work, and they are hard to test.\nconst brokenClipboardAPI = (ie && ie_version < 15) ||\n    (ios && webkit_version < 604);\nhandlers.copy = editHandlers.cut = (view, _event) => {\n    let event = _event;\n    let sel = view.state.selection, cut = event.type == \"cut\";\n    if (sel.empty)\n        return;\n    // IE and Edge's clipboard interface is completely broken\n    let data = brokenClipboardAPI ? null : event.clipboardData;\n    let slice = sel.content(), { dom, text } = serializeForClipboard(view, slice);\n    if (data) {\n        event.preventDefault();\n        data.clearData();\n        data.setData(\"text/html\", dom.innerHTML);\n        data.setData(\"text/plain\", text);\n    }\n    else {\n        captureCopy(view, dom);\n    }\n    if (cut)\n        view.dispatch(view.state.tr.deleteSelection().scrollIntoView().setMeta(\"uiEvent\", \"cut\"));\n};\nfunction sliceSingleNode(slice) {\n    return slice.openStart == 0 && slice.openEnd == 0 && slice.content.childCount == 1 ? slice.content.firstChild : null;\n}\nfunction capturePaste(view, event) {\n    if (!view.dom.parentNode)\n        return;\n    let plainText = view.input.shiftKey || view.state.selection.$from.parent.type.spec.code;\n    let target = view.dom.parentNode.appendChild(document.createElement(plainText ? \"textarea\" : \"div\"));\n    if (!plainText)\n        target.contentEditable = \"true\";\n    target.style.cssText = \"position: fixed; left: -10000px; top: 10px\";\n    target.focus();\n    let plain = view.input.shiftKey && view.input.lastKeyCode != 45;\n    setTimeout(() => {\n        view.focus();\n        if (target.parentNode)\n            target.parentNode.removeChild(target);\n        if (plainText)\n            doPaste(view, target.value, null, plain, event);\n        else\n            doPaste(view, target.textContent, target.innerHTML, plain, event);\n    }, 50);\n}\nfunction doPaste(view, text, html, preferPlain, event) {\n    let slice = parseFromClipboard(view, text, html, preferPlain, view.state.selection.$from);\n    if (view.someProp(\"handlePaste\", f => f(view, event, slice || Slice.empty)))\n        return true;\n    if (!slice)\n        return false;\n    let singleNode = sliceSingleNode(slice);\n    let tr = singleNode\n        ? view.state.tr.replaceSelectionWith(singleNode, preferPlain)\n        : view.state.tr.replaceSelection(slice);\n    view.dispatch(tr.scrollIntoView().setMeta(\"paste\", true).setMeta(\"uiEvent\", \"paste\"));\n    return true;\n}\nfunction getText(clipboardData) {\n    let text = clipboardData.getData(\"text/plain\") || clipboardData.getData(\"Text\");\n    if (text)\n        return text;\n    let uris = clipboardData.getData(\"text/uri-list\");\n    return uris ? uris.replace(/\\r?\\n/g, \" \") : \"\";\n}\neditHandlers.paste = (view, _event) => {\n    let event = _event;\n    // Handling paste from JavaScript during composition is very poorly\n    // handled by browsers, so as a dodgy but preferable kludge, we just\n    // let the browser do its native thing there, except on Android,\n    // where the editor is almost always composing.\n    if (view.composing && !android)\n        return;\n    let data = brokenClipboardAPI ? null : event.clipboardData;\n    let plain = view.input.shiftKey && view.input.lastKeyCode != 45;\n    if (data && doPaste(view, getText(data), data.getData(\"text/html\"), plain, event))\n        event.preventDefault();\n    else\n        capturePaste(view, event);\n};\nclass Dragging {\n    constructor(slice, move, node) {\n        this.slice = slice;\n        this.move = move;\n        this.node = node;\n    }\n}\nconst dragCopyModifier = mac ? \"altKey\" : \"ctrlKey\";\nfunction dragMoves(view, event) {\n    let moves = view.someProp(\"dragCopies\", test => !test(event));\n    return moves != null ? moves : !event[dragCopyModifier];\n}\nhandlers.dragstart = (view, _event) => {\n    let event = _event;\n    let mouseDown = view.input.mouseDown;\n    if (mouseDown)\n        mouseDown.done();\n    if (!event.dataTransfer)\n        return;\n    let sel = view.state.selection;\n    let pos = sel.empty ? null : view.posAtCoords(eventCoords(event));\n    let node;\n    if (pos && pos.pos >= sel.from && pos.pos <= (sel instanceof NodeSelection ? sel.to - 1 : sel.to)) ;\n    else if (mouseDown && mouseDown.mightDrag) {\n        node = NodeSelection.create(view.state.doc, mouseDown.mightDrag.pos);\n    }\n    else if (event.target && event.target.nodeType == 1) {\n        let desc = view.docView.nearestDesc(event.target, true);\n        if (desc && desc.node.type.spec.draggable && desc != view.docView)\n            node = NodeSelection.create(view.state.doc, desc.posBefore);\n    }\n    let draggedSlice = (node || view.state.selection).content();\n    let { dom, text, slice } = serializeForClipboard(view, draggedSlice);\n    // Pre-120 Chrome versions clear files when calling `clearData` (#1472)\n    if (!event.dataTransfer.files.length || !chrome || chrome_version > 120)\n        event.dataTransfer.clearData();\n    event.dataTransfer.setData(brokenClipboardAPI ? \"Text\" : \"text/html\", dom.innerHTML);\n    // See https://github.com/ProseMirror/prosemirror/issues/1156\n    event.dataTransfer.effectAllowed = \"copyMove\";\n    if (!brokenClipboardAPI)\n        event.dataTransfer.setData(\"text/plain\", text);\n    view.dragging = new Dragging(slice, dragMoves(view, event), node);\n};\nhandlers.dragend = view => {\n    let dragging = view.dragging;\n    window.setTimeout(() => {\n        if (view.dragging == dragging)\n            view.dragging = null;\n    }, 50);\n};\neditHandlers.dragover = editHandlers.dragenter = (_, e) => e.preventDefault();\neditHandlers.drop = (view, event) => {\n    try {\n        handleDrop(view, event, view.dragging);\n    }\n    finally {\n        view.dragging = null;\n    }\n};\nfunction handleDrop(view, event, dragging) {\n    if (!event.dataTransfer)\n        return;\n    let eventPos = view.posAtCoords(eventCoords(event));\n    if (!eventPos)\n        return;\n    let $mouse = view.state.doc.resolve(eventPos.pos);\n    let slice = dragging && dragging.slice;\n    if (slice) {\n        view.someProp(\"transformPasted\", f => { slice = f(slice, view, false); });\n    }\n    else {\n        slice = parseFromClipboard(view, getText(event.dataTransfer), brokenClipboardAPI ? null : event.dataTransfer.getData(\"text/html\"), false, $mouse);\n    }\n    let move = !!(dragging && dragMoves(view, event));\n    if (view.someProp(\"handleDrop\", f => f(view, event, slice || Slice.empty, move))) {\n        event.preventDefault();\n        return;\n    }\n    if (!slice)\n        return;\n    event.preventDefault();\n    let insertPos = slice ? dropPoint(view.state.doc, $mouse.pos, slice) : $mouse.pos;\n    if (insertPos == null)\n        insertPos = $mouse.pos;\n    let tr = view.state.tr;\n    if (move) {\n        let { node } = dragging;\n        if (node)\n            node.replace(tr);\n        else\n            tr.deleteSelection();\n    }\n    let pos = tr.mapping.map(insertPos);\n    let isNode = slice.openStart == 0 && slice.openEnd == 0 && slice.content.childCount == 1;\n    let beforeInsert = tr.doc;\n    if (isNode)\n        tr.replaceRangeWith(pos, pos, slice.content.firstChild);\n    else\n        tr.replaceRange(pos, pos, slice);\n    if (tr.doc.eq(beforeInsert))\n        return;\n    let $pos = tr.doc.resolve(pos);\n    if (isNode && NodeSelection.isSelectable(slice.content.firstChild) &&\n        $pos.nodeAfter && $pos.nodeAfter.sameMarkup(slice.content.firstChild)) {\n        tr.setSelection(new NodeSelection($pos));\n    }\n    else {\n        let end = tr.mapping.map(insertPos);\n        tr.mapping.maps[tr.mapping.maps.length - 1].forEach((_from, _to, _newFrom, newTo) => end = newTo);\n        tr.setSelection(selectionBetween(view, $pos, tr.doc.resolve(end)));\n    }\n    view.focus();\n    view.dispatch(tr.setMeta(\"uiEvent\", \"drop\"));\n}\nhandlers.focus = view => {\n    view.input.lastFocus = Date.now();\n    if (!view.focused) {\n        view.domObserver.stop();\n        view.dom.classList.add(\"ProseMirror-focused\");\n        view.domObserver.start();\n        view.focused = true;\n        setTimeout(() => {\n            if (view.docView && view.hasFocus() && !view.domObserver.currentSelection.eq(view.domSelectionRange()))\n                selectionToDOM(view);\n        }, 20);\n    }\n};\nhandlers.blur = (view, _event) => {\n    let event = _event;\n    if (view.focused) {\n        view.domObserver.stop();\n        view.dom.classList.remove(\"ProseMirror-focused\");\n        view.domObserver.start();\n        if (event.relatedTarget && view.dom.contains(event.relatedTarget))\n            view.domObserver.currentSelection.clear();\n        view.focused = false;\n    }\n};\nhandlers.beforeinput = (view, _event) => {\n    let event = _event;\n    // We should probably do more with beforeinput events, but support\n    // is so spotty that I'm still waiting to see where they are going.\n    // Very specific hack to deal with backspace sometimes failing on\n    // Chrome Android when after an uneditable node.\n    if (chrome && android && event.inputType == \"deleteContentBackward\") {\n        view.domObserver.flushSoon();\n        let { domChangeCount } = view.input;\n        setTimeout(() => {\n            if (view.input.domChangeCount != domChangeCount)\n                return; // Event already had some effect\n            // This bug tends to close the virtual keyboard, so we refocus\n            view.dom.blur();\n            view.focus();\n            if (view.someProp(\"handleKeyDown\", f => f(view, keyEvent(8, \"Backspace\"))))\n                return;\n            let { $cursor } = view.state.selection;\n            // Crude approximation of backspace behavior when no command handled it\n            if ($cursor && $cursor.pos > 0)\n                view.dispatch(view.state.tr.delete($cursor.pos - 1, $cursor.pos).scrollIntoView());\n        }, 50);\n    }\n};\n// Make sure all handlers get registered\nfor (let prop in editHandlers)\n    handlers[prop] = editHandlers[prop];\n\nfunction compareObjs(a, b) {\n    if (a == b)\n        return true;\n    for (let p in a)\n        if (a[p] !== b[p])\n            return false;\n    for (let p in b)\n        if (!(p in a))\n            return false;\n    return true;\n}\nclass WidgetType {\n    constructor(toDOM, spec) {\n        this.toDOM = toDOM;\n        this.spec = spec || noSpec;\n        this.side = this.spec.side || 0;\n    }\n    map(mapping, span, offset, oldOffset) {\n        let { pos, deleted } = mapping.mapResult(span.from + oldOffset, this.side < 0 ? -1 : 1);\n        return deleted ? null : new Decoration(pos - offset, pos - offset, this);\n    }\n    valid() { return true; }\n    eq(other) {\n        return this == other ||\n            (other instanceof WidgetType &&\n                (this.spec.key && this.spec.key == other.spec.key ||\n                    this.toDOM == other.toDOM && compareObjs(this.spec, other.spec)));\n    }\n    destroy(node) {\n        if (this.spec.destroy)\n            this.spec.destroy(node);\n    }\n}\nclass InlineType {\n    constructor(attrs, spec) {\n        this.attrs = attrs;\n        this.spec = spec || noSpec;\n    }\n    map(mapping, span, offset, oldOffset) {\n        let from = mapping.map(span.from + oldOffset, this.spec.inclusiveStart ? -1 : 1) - offset;\n        let to = mapping.map(span.to + oldOffset, this.spec.inclusiveEnd ? 1 : -1) - offset;\n        return from >= to ? null : new Decoration(from, to, this);\n    }\n    valid(_, span) { return span.from < span.to; }\n    eq(other) {\n        return this == other ||\n            (other instanceof InlineType && compareObjs(this.attrs, other.attrs) &&\n                compareObjs(this.spec, other.spec));\n    }\n    static is(span) { return span.type instanceof InlineType; }\n    destroy() { }\n}\nclass NodeType {\n    constructor(attrs, spec) {\n        this.attrs = attrs;\n        this.spec = spec || noSpec;\n    }\n    map(mapping, span, offset, oldOffset) {\n        let from = mapping.mapResult(span.from + oldOffset, 1);\n        if (from.deleted)\n            return null;\n        let to = mapping.mapResult(span.to + oldOffset, -1);\n        if (to.deleted || to.pos <= from.pos)\n            return null;\n        return new Decoration(from.pos - offset, to.pos - offset, this);\n    }\n    valid(node, span) {\n        let { index, offset } = node.content.findIndex(span.from), child;\n        return offset == span.from && !(child = node.child(index)).isText && offset + child.nodeSize == span.to;\n    }\n    eq(other) {\n        return this == other ||\n            (other instanceof NodeType && compareObjs(this.attrs, other.attrs) &&\n                compareObjs(this.spec, other.spec));\n    }\n    destroy() { }\n}\n/**\nDecoration objects can be provided to the view through the\n[`decorations` prop](https://prosemirror.net/docs/ref/#view.EditorProps.decorations). They come in\nseveral variants—see the static members of this class for details.\n*/\nclass Decoration {\n    /**\n    @internal\n    */\n    constructor(\n    /**\n    The start position of the decoration.\n    */\n    from, \n    /**\n    The end position. Will be the same as `from` for [widget\n    decorations](https://prosemirror.net/docs/ref/#view.Decoration^widget).\n    */\n    to, \n    /**\n    @internal\n    */\n    type) {\n        this.from = from;\n        this.to = to;\n        this.type = type;\n    }\n    /**\n    @internal\n    */\n    copy(from, to) {\n        return new Decoration(from, to, this.type);\n    }\n    /**\n    @internal\n    */\n    eq(other, offset = 0) {\n        return this.type.eq(other.type) && this.from + offset == other.from && this.to + offset == other.to;\n    }\n    /**\n    @internal\n    */\n    map(mapping, offset, oldOffset) {\n        return this.type.map(mapping, this, offset, oldOffset);\n    }\n    /**\n    Creates a widget decoration, which is a DOM node that's shown in\n    the document at the given position. It is recommended that you\n    delay rendering the widget by passing a function that will be\n    called when the widget is actually drawn in a view, but you can\n    also directly pass a DOM node. `getPos` can be used to find the\n    widget's current document position.\n    */\n    static widget(pos, toDOM, spec) {\n        return new Decoration(pos, pos, new WidgetType(toDOM, spec));\n    }\n    /**\n    Creates an inline decoration, which adds the given attributes to\n    each inline node between `from` and `to`.\n    */\n    static inline(from, to, attrs, spec) {\n        return new Decoration(from, to, new InlineType(attrs, spec));\n    }\n    /**\n    Creates a node decoration. `from` and `to` should point precisely\n    before and after a node in the document. That node, and only that\n    node, will receive the given attributes.\n    */\n    static node(from, to, attrs, spec) {\n        return new Decoration(from, to, new NodeType(attrs, spec));\n    }\n    /**\n    The spec provided when creating this decoration. Can be useful\n    if you've stored extra information in that object.\n    */\n    get spec() { return this.type.spec; }\n    /**\n    @internal\n    */\n    get inline() { return this.type instanceof InlineType; }\n    /**\n    @internal\n    */\n    get widget() { return this.type instanceof WidgetType; }\n}\nconst none = [], noSpec = {};\n/**\nA collection of [decorations](https://prosemirror.net/docs/ref/#view.Decoration), organized in such\na way that the drawing algorithm can efficiently use and compare\nthem. This is a persistent data structure—it is not modified,\nupdates create a new value.\n*/\nclass DecorationSet {\n    /**\n    @internal\n    */\n    constructor(local, children) {\n        this.local = local.length ? local : none;\n        this.children = children.length ? children : none;\n    }\n    /**\n    Create a set of decorations, using the structure of the given\n    document. This will consume (modify) the `decorations` array, so\n    you must make a copy if you want need to preserve that.\n    */\n    static create(doc, decorations) {\n        return decorations.length ? buildTree(decorations, doc, 0, noSpec) : empty;\n    }\n    /**\n    Find all decorations in this set which touch the given range\n    (including decorations that start or end directly at the\n    boundaries) and match the given predicate on their spec. When\n    `start` and `end` are omitted, all decorations in the set are\n    considered. When `predicate` isn't given, all decorations are\n    assumed to match.\n    */\n    find(start, end, predicate) {\n        let result = [];\n        this.findInner(start == null ? 0 : start, end == null ? 1e9 : end, result, 0, predicate);\n        return result;\n    }\n    findInner(start, end, result, offset, predicate) {\n        for (let i = 0; i < this.local.length; i++) {\n            let span = this.local[i];\n            if (span.from <= end && span.to >= start && (!predicate || predicate(span.spec)))\n                result.push(span.copy(span.from + offset, span.to + offset));\n        }\n        for (let i = 0; i < this.children.length; i += 3) {\n            if (this.children[i] < end && this.children[i + 1] > start) {\n                let childOff = this.children[i] + 1;\n                this.children[i + 2].findInner(start - childOff, end - childOff, result, offset + childOff, predicate);\n            }\n        }\n    }\n    /**\n    Map the set of decorations in response to a change in the\n    document.\n    */\n    map(mapping, doc, options) {\n        if (this == empty || mapping.maps.length == 0)\n            return this;\n        return this.mapInner(mapping, doc, 0, 0, options || noSpec);\n    }\n    /**\n    @internal\n    */\n    mapInner(mapping, node, offset, oldOffset, options) {\n        let newLocal;\n        for (let i = 0; i < this.local.length; i++) {\n            let mapped = this.local[i].map(mapping, offset, oldOffset);\n            if (mapped && mapped.type.valid(node, mapped))\n                (newLocal || (newLocal = [])).push(mapped);\n            else if (options.onRemove)\n                options.onRemove(this.local[i].spec);\n        }\n        if (this.children.length)\n            return mapChildren(this.children, newLocal || [], mapping, node, offset, oldOffset, options);\n        else\n            return newLocal ? new DecorationSet(newLocal.sort(byPos), none) : empty;\n    }\n    /**\n    Add the given array of decorations to the ones in the set,\n    producing a new set. Consumes the `decorations` array. Needs\n    access to the current document to create the appropriate tree\n    structure.\n    */\n    add(doc, decorations) {\n        if (!decorations.length)\n            return this;\n        if (this == empty)\n            return DecorationSet.create(doc, decorations);\n        return this.addInner(doc, decorations, 0);\n    }\n    addInner(doc, decorations, offset) {\n        let children, childIndex = 0;\n        doc.forEach((childNode, childOffset) => {\n            let baseOffset = childOffset + offset, found;\n            if (!(found = takeSpansForNode(decorations, childNode, baseOffset)))\n                return;\n            if (!children)\n                children = this.children.slice();\n            while (childIndex < children.length && children[childIndex] < childOffset)\n                childIndex += 3;\n            if (children[childIndex] == childOffset)\n                children[childIndex + 2] = children[childIndex + 2].addInner(childNode, found, baseOffset + 1);\n            else\n                children.splice(childIndex, 0, childOffset, childOffset + childNode.nodeSize, buildTree(found, childNode, baseOffset + 1, noSpec));\n            childIndex += 3;\n        });\n        let local = moveSpans(childIndex ? withoutNulls(decorations) : decorations, -offset);\n        for (let i = 0; i < local.length; i++)\n            if (!local[i].type.valid(doc, local[i]))\n                local.splice(i--, 1);\n        return new DecorationSet(local.length ? this.local.concat(local).sort(byPos) : this.local, children || this.children);\n    }\n    /**\n    Create a new set that contains the decorations in this set, minus\n    the ones in the given array.\n    */\n    remove(decorations) {\n        if (decorations.length == 0 || this == empty)\n            return this;\n        return this.removeInner(decorations, 0);\n    }\n    removeInner(decorations, offset) {\n        let children = this.children, local = this.local;\n        for (let i = 0; i < children.length; i += 3) {\n            let found;\n            let from = children[i] + offset, to = children[i + 1] + offset;\n            for (let j = 0, span; j < decorations.length; j++)\n                if (span = decorations[j]) {\n                    if (span.from > from && span.to < to) {\n                        decorations[j] = null;\n                        (found || (found = [])).push(span);\n                    }\n                }\n            if (!found)\n                continue;\n            if (children == this.children)\n                children = this.children.slice();\n            let removed = children[i + 2].removeInner(found, from + 1);\n            if (removed != empty) {\n                children[i + 2] = removed;\n            }\n            else {\n                children.splice(i, 3);\n                i -= 3;\n            }\n        }\n        if (local.length)\n            for (let i = 0, span; i < decorations.length; i++)\n                if (span = decorations[i]) {\n                    for (let j = 0; j < local.length; j++)\n                        if (local[j].eq(span, offset)) {\n                            if (local == this.local)\n                                local = this.local.slice();\n                            local.splice(j--, 1);\n                        }\n                }\n        if (children == this.children && local == this.local)\n            return this;\n        return local.length || children.length ? new DecorationSet(local, children) : empty;\n    }\n    forChild(offset, node) {\n        if (this == empty)\n            return this;\n        if (node.isLeaf)\n            return DecorationSet.empty;\n        let child, local;\n        for (let i = 0; i < this.children.length; i += 3)\n            if (this.children[i] >= offset) {\n                if (this.children[i] == offset)\n                    child = this.children[i + 2];\n                break;\n            }\n        let start = offset + 1, end = start + node.content.size;\n        for (let i = 0; i < this.local.length; i++) {\n            let dec = this.local[i];\n            if (dec.from < end && dec.to > start && (dec.type instanceof InlineType)) {\n                let from = Math.max(start, dec.from) - start, to = Math.min(end, dec.to) - start;\n                if (from < to)\n                    (local || (local = [])).push(dec.copy(from, to));\n            }\n        }\n        if (local) {\n            let localSet = new DecorationSet(local.sort(byPos), none);\n            return child ? new DecorationGroup([localSet, child]) : localSet;\n        }\n        return child || empty;\n    }\n    /**\n    @internal\n    */\n    eq(other) {\n        if (this == other)\n            return true;\n        if (!(other instanceof DecorationSet) ||\n            this.local.length != other.local.length ||\n            this.children.length != other.children.length)\n            return false;\n        for (let i = 0; i < this.local.length; i++)\n            if (!this.local[i].eq(other.local[i]))\n                return false;\n        for (let i = 0; i < this.children.length; i += 3)\n            if (this.children[i] != other.children[i] ||\n                this.children[i + 1] != other.children[i + 1] ||\n                !this.children[i + 2].eq(other.children[i + 2]))\n                return false;\n        return true;\n    }\n    /**\n    @internal\n    */\n    locals(node) {\n        return removeOverlap(this.localsInner(node));\n    }\n    /**\n    @internal\n    */\n    localsInner(node) {\n        if (this == empty)\n            return none;\n        if (node.inlineContent || !this.local.some(InlineType.is))\n            return this.local;\n        let result = [];\n        for (let i = 0; i < this.local.length; i++) {\n            if (!(this.local[i].type instanceof InlineType))\n                result.push(this.local[i]);\n        }\n        return result;\n    }\n    forEachSet(f) { f(this); }\n}\n/**\nThe empty set of decorations.\n*/\nDecorationSet.empty = new DecorationSet([], []);\n/**\n@internal\n*/\nDecorationSet.removeOverlap = removeOverlap;\nconst empty = DecorationSet.empty;\n// An abstraction that allows the code dealing with decorations to\n// treat multiple DecorationSet objects as if it were a single object\n// with (a subset of) the same interface.\nclass DecorationGroup {\n    constructor(members) {\n        this.members = members;\n    }\n    map(mapping, doc) {\n        const mappedDecos = this.members.map(member => member.map(mapping, doc, noSpec));\n        return DecorationGroup.from(mappedDecos);\n    }\n    forChild(offset, child) {\n        if (child.isLeaf)\n            return DecorationSet.empty;\n        let found = [];\n        for (let i = 0; i < this.members.length; i++) {\n            let result = this.members[i].forChild(offset, child);\n            if (result == empty)\n                continue;\n            if (result instanceof DecorationGroup)\n                found = found.concat(result.members);\n            else\n                found.push(result);\n        }\n        return DecorationGroup.from(found);\n    }\n    eq(other) {\n        if (!(other instanceof DecorationGroup) ||\n            other.members.length != this.members.length)\n            return false;\n        for (let i = 0; i < this.members.length; i++)\n            if (!this.members[i].eq(other.members[i]))\n                return false;\n        return true;\n    }\n    locals(node) {\n        let result, sorted = true;\n        for (let i = 0; i < this.members.length; i++) {\n            let locals = this.members[i].localsInner(node);\n            if (!locals.length)\n                continue;\n            if (!result) {\n                result = locals;\n            }\n            else {\n                if (sorted) {\n                    result = result.slice();\n                    sorted = false;\n                }\n                for (let j = 0; j < locals.length; j++)\n                    result.push(locals[j]);\n            }\n        }\n        return result ? removeOverlap(sorted ? result : result.sort(byPos)) : none;\n    }\n    // Create a group for the given array of decoration sets, or return\n    // a single set when possible.\n    static from(members) {\n        switch (members.length) {\n            case 0: return empty;\n            case 1: return members[0];\n            default: return new DecorationGroup(members.every(m => m instanceof DecorationSet) ? members :\n                members.reduce((r, m) => r.concat(m instanceof DecorationSet ? m : m.members), []));\n        }\n    }\n    forEachSet(f) {\n        for (let i = 0; i < this.members.length; i++)\n            this.members[i].forEachSet(f);\n    }\n}\nfunction mapChildren(oldChildren, newLocal, mapping, node, offset, oldOffset, options) {\n    let children = oldChildren.slice();\n    // Mark the children that are directly touched by changes, and\n    // move those that are after the changes.\n    for (let i = 0, baseOffset = oldOffset; i < mapping.maps.length; i++) {\n        let moved = 0;\n        mapping.maps[i].forEach((oldStart, oldEnd, newStart, newEnd) => {\n            let dSize = (newEnd - newStart) - (oldEnd - oldStart);\n            for (let i = 0; i < children.length; i += 3) {\n                let end = children[i + 1];\n                if (end < 0 || oldStart > end + baseOffset - moved)\n                    continue;\n                let start = children[i] + baseOffset - moved;\n                if (oldEnd >= start) {\n                    children[i + 1] = oldStart <= start ? -2 : -1;\n                }\n                else if (oldStart >= baseOffset && dSize) {\n                    children[i] += dSize;\n                    children[i + 1] += dSize;\n                }\n            }\n            moved += dSize;\n        });\n        baseOffset = mapping.maps[i].map(baseOffset, -1);\n    }\n    // Find the child nodes that still correspond to a single node,\n    // recursively call mapInner on them and update their positions.\n    let mustRebuild = false;\n    for (let i = 0; i < children.length; i += 3)\n        if (children[i + 1] < 0) { // Touched nodes\n            if (children[i + 1] == -2) {\n                mustRebuild = true;\n                children[i + 1] = -1;\n                continue;\n            }\n            let from = mapping.map(oldChildren[i] + oldOffset), fromLocal = from - offset;\n            if (fromLocal < 0 || fromLocal >= node.content.size) {\n                mustRebuild = true;\n                continue;\n            }\n            // Must read oldChildren because children was tagged with -1\n            let to = mapping.map(oldChildren[i + 1] + oldOffset, -1), toLocal = to - offset;\n            let { index, offset: childOffset } = node.content.findIndex(fromLocal);\n            let childNode = node.maybeChild(index);\n            if (childNode && childOffset == fromLocal && childOffset + childNode.nodeSize == toLocal) {\n                let mapped = children[i + 2]\n                    .mapInner(mapping, childNode, from + 1, oldChildren[i] + oldOffset + 1, options);\n                if (mapped != empty) {\n                    children[i] = fromLocal;\n                    children[i + 1] = toLocal;\n                    children[i + 2] = mapped;\n                }\n                else {\n                    children[i + 1] = -2;\n                    mustRebuild = true;\n                }\n            }\n            else {\n                mustRebuild = true;\n            }\n        }\n    // Remaining children must be collected and rebuilt into the appropriate structure\n    if (mustRebuild) {\n        let decorations = mapAndGatherRemainingDecorations(children, oldChildren, newLocal, mapping, offset, oldOffset, options);\n        let built = buildTree(decorations, node, 0, options);\n        newLocal = built.local;\n        for (let i = 0; i < children.length; i += 3)\n            if (children[i + 1] < 0) {\n                children.splice(i, 3);\n                i -= 3;\n            }\n        for (let i = 0, j = 0; i < built.children.length; i += 3) {\n            let from = built.children[i];\n            while (j < children.length && children[j] < from)\n                j += 3;\n            children.splice(j, 0, built.children[i], built.children[i + 1], built.children[i + 2]);\n        }\n    }\n    return new DecorationSet(newLocal.sort(byPos), children);\n}\nfunction moveSpans(spans, offset) {\n    if (!offset || !spans.length)\n        return spans;\n    let result = [];\n    for (let i = 0; i < spans.length; i++) {\n        let span = spans[i];\n        result.push(new Decoration(span.from + offset, span.to + offset, span.type));\n    }\n    return result;\n}\nfunction mapAndGatherRemainingDecorations(children, oldChildren, decorations, mapping, offset, oldOffset, options) {\n    // Gather all decorations from the remaining marked children\n    function gather(set, oldOffset) {\n        for (let i = 0; i < set.local.length; i++) {\n            let mapped = set.local[i].map(mapping, offset, oldOffset);\n            if (mapped)\n                decorations.push(mapped);\n            else if (options.onRemove)\n                options.onRemove(set.local[i].spec);\n        }\n        for (let i = 0; i < set.children.length; i += 3)\n            gather(set.children[i + 2], set.children[i] + oldOffset + 1);\n    }\n    for (let i = 0; i < children.length; i += 3)\n        if (children[i + 1] == -1)\n            gather(children[i + 2], oldChildren[i] + oldOffset + 1);\n    return decorations;\n}\nfunction takeSpansForNode(spans, node, offset) {\n    if (node.isLeaf)\n        return null;\n    let end = offset + node.nodeSize, found = null;\n    for (let i = 0, span; i < spans.length; i++) {\n        if ((span = spans[i]) && span.from > offset && span.to < end) {\n            (found || (found = [])).push(span);\n            spans[i] = null;\n        }\n    }\n    return found;\n}\nfunction withoutNulls(array) {\n    let result = [];\n    for (let i = 0; i < array.length; i++)\n        if (array[i] != null)\n            result.push(array[i]);\n    return result;\n}\n// Build up a tree that corresponds to a set of decorations. `offset`\n// is a base offset that should be subtracted from the `from` and `to`\n// positions in the spans (so that we don't have to allocate new spans\n// for recursive calls).\nfunction buildTree(spans, node, offset, options) {\n    let children = [], hasNulls = false;\n    node.forEach((childNode, localStart) => {\n        let found = takeSpansForNode(spans, childNode, localStart + offset);\n        if (found) {\n            hasNulls = true;\n            let subtree = buildTree(found, childNode, offset + localStart + 1, options);\n            if (subtree != empty)\n                children.push(localStart, localStart + childNode.nodeSize, subtree);\n        }\n    });\n    let locals = moveSpans(hasNulls ? withoutNulls(spans) : spans, -offset).sort(byPos);\n    for (let i = 0; i < locals.length; i++)\n        if (!locals[i].type.valid(node, locals[i])) {\n            if (options.onRemove)\n                options.onRemove(locals[i].spec);\n            locals.splice(i--, 1);\n        }\n    return locals.length || children.length ? new DecorationSet(locals, children) : empty;\n}\n// Used to sort decorations so that ones with a low start position\n// come first, and within a set with the same start position, those\n// with an smaller end position come first.\nfunction byPos(a, b) {\n    return a.from - b.from || a.to - b.to;\n}\n// Scan a sorted array of decorations for partially overlapping spans,\n// and split those so that only fully overlapping spans are left (to\n// make subsequent rendering easier). Will return the input array if\n// no partially overlapping spans are found (the common case).\nfunction removeOverlap(spans) {\n    let working = spans;\n    for (let i = 0; i < working.length - 1; i++) {\n        let span = working[i];\n        if (span.from != span.to)\n            for (let j = i + 1; j < working.length; j++) {\n                let next = working[j];\n                if (next.from == span.from) {\n                    if (next.to != span.to) {\n                        if (working == spans)\n                            working = spans.slice();\n                        // Followed by a partially overlapping larger span. Split that\n                        // span.\n                        working[j] = next.copy(next.from, span.to);\n                        insertAhead(working, j + 1, next.copy(span.to, next.to));\n                    }\n                    continue;\n                }\n                else {\n                    if (next.from < span.to) {\n                        if (working == spans)\n                            working = spans.slice();\n                        // The end of this one overlaps with a subsequent span. Split\n                        // this one.\n                        working[i] = span.copy(span.from, next.from);\n                        insertAhead(working, j, span.copy(next.from, span.to));\n                    }\n                    break;\n                }\n            }\n    }\n    return working;\n}\nfunction insertAhead(array, i, deco) {\n    while (i < array.length && byPos(deco, array[i]) > 0)\n        i++;\n    array.splice(i, 0, deco);\n}\n// Get the decorations associated with the current props of a view.\nfunction viewDecorations(view) {\n    let found = [];\n    view.someProp(\"decorations\", f => {\n        let result = f(view.state);\n        if (result && result != empty)\n            found.push(result);\n    });\n    if (view.cursorWrapper)\n        found.push(DecorationSet.create(view.state.doc, [view.cursorWrapper.deco]));\n    return DecorationGroup.from(found);\n}\n\nconst observeOptions = {\n    childList: true,\n    characterData: true,\n    characterDataOldValue: true,\n    attributes: true,\n    attributeOldValue: true,\n    subtree: true\n};\n// IE11 has very broken mutation observers, so we also listen to DOMCharacterDataModified\nconst useCharData = ie && ie_version <= 11;\nclass SelectionState {\n    constructor() {\n        this.anchorNode = null;\n        this.anchorOffset = 0;\n        this.focusNode = null;\n        this.focusOffset = 0;\n    }\n    set(sel) {\n        this.anchorNode = sel.anchorNode;\n        this.anchorOffset = sel.anchorOffset;\n        this.focusNode = sel.focusNode;\n        this.focusOffset = sel.focusOffset;\n    }\n    clear() {\n        this.anchorNode = this.focusNode = null;\n    }\n    eq(sel) {\n        return sel.anchorNode == this.anchorNode && sel.anchorOffset == this.anchorOffset &&\n            sel.focusNode == this.focusNode && sel.focusOffset == this.focusOffset;\n    }\n}\nclass DOMObserver {\n    constructor(view, handleDOMChange) {\n        this.view = view;\n        this.handleDOMChange = handleDOMChange;\n        this.queue = [];\n        this.flushingSoon = -1;\n        this.observer = null;\n        this.currentSelection = new SelectionState;\n        this.onCharData = null;\n        this.suppressingSelectionUpdates = false;\n        this.lastChangedTextNode = null;\n        this.observer = window.MutationObserver &&\n            new window.MutationObserver(mutations => {\n                for (let i = 0; i < mutations.length; i++)\n                    this.queue.push(mutations[i]);\n                if (ie && ie_version <= 11 && mutations.some(m => m.type == \"childList\" && m.removedNodes.length ||\n                    m.type == \"characterData\" && m.oldValue.length > m.target.nodeValue.length)) {\n                    // IE11 will sometimes (on backspacing out a single character\n                    // text node after a BR node) call the observer callback\n                    // before actually updating the DOM, which will cause\n                    // ProseMirror to miss the change (see #930)\n                    this.flushSoon();\n                }\n                else if (safari && view.composing && mutations.some(m => m.type == \"childList\" && m.target.nodeName == \"TR\")) {\n                    // Safari does weird stuff when finishing a composition in a\n                    // table cell, which tends to involve inserting inappropriate\n                    // nodes in the table row.\n                    view.input.badSafariComposition = true;\n                    this.flushSoon();\n                }\n                else {\n                    this.flush();\n                }\n            });\n        if (useCharData) {\n            this.onCharData = e => {\n                this.queue.push({ target: e.target, type: \"characterData\", oldValue: e.prevValue });\n                this.flushSoon();\n            };\n        }\n        this.onSelectionChange = this.onSelectionChange.bind(this);\n    }\n    flushSoon() {\n        if (this.flushingSoon < 0)\n            this.flushingSoon = window.setTimeout(() => { this.flushingSoon = -1; this.flush(); }, 20);\n    }\n    forceFlush() {\n        if (this.flushingSoon > -1) {\n            window.clearTimeout(this.flushingSoon);\n            this.flushingSoon = -1;\n            this.flush();\n        }\n    }\n    start() {\n        if (this.observer) {\n            this.observer.takeRecords();\n            this.observer.observe(this.view.dom, observeOptions);\n        }\n        if (this.onCharData)\n            this.view.dom.addEventListener(\"DOMCharacterDataModified\", this.onCharData);\n        this.connectSelection();\n    }\n    stop() {\n        if (this.observer) {\n            let take = this.observer.takeRecords();\n            if (take.length) {\n                for (let i = 0; i < take.length; i++)\n                    this.queue.push(take[i]);\n                window.setTimeout(() => this.flush(), 20);\n            }\n            this.observer.disconnect();\n        }\n        if (this.onCharData)\n            this.view.dom.removeEventListener(\"DOMCharacterDataModified\", this.onCharData);\n        this.disconnectSelection();\n    }\n    connectSelection() {\n        this.view.dom.ownerDocument.addEventListener(\"selectionchange\", this.onSelectionChange);\n    }\n    disconnectSelection() {\n        this.view.dom.ownerDocument.removeEventListener(\"selectionchange\", this.onSelectionChange);\n    }\n    suppressSelectionUpdates() {\n        this.suppressingSelectionUpdates = true;\n        setTimeout(() => this.suppressingSelectionUpdates = false, 50);\n    }\n    onSelectionChange() {\n        if (!hasFocusAndSelection(this.view))\n            return;\n        if (this.suppressingSelectionUpdates)\n            return selectionToDOM(this.view);\n        // Deletions on IE11 fire their events in the wrong order, giving\n        // us a selection change event before the DOM changes are\n        // reported.\n        if (ie && ie_version <= 11 && !this.view.state.selection.empty) {\n            let sel = this.view.domSelectionRange();\n            // Selection.isCollapsed isn't reliable on IE\n            if (sel.focusNode && isEquivalentPosition(sel.focusNode, sel.focusOffset, sel.anchorNode, sel.anchorOffset))\n                return this.flushSoon();\n        }\n        this.flush();\n    }\n    setCurSelection() {\n        this.currentSelection.set(this.view.domSelectionRange());\n    }\n    ignoreSelectionChange(sel) {\n        if (!sel.focusNode)\n            return true;\n        let ancestors = new Set, container;\n        for (let scan = sel.focusNode; scan; scan = parentNode(scan))\n            ancestors.add(scan);\n        for (let scan = sel.anchorNode; scan; scan = parentNode(scan))\n            if (ancestors.has(scan)) {\n                container = scan;\n                break;\n            }\n        let desc = container && this.view.docView.nearestDesc(container);\n        if (desc && desc.ignoreMutation({\n            type: \"selection\",\n            target: container.nodeType == 3 ? container.parentNode : container\n        })) {\n            this.setCurSelection();\n            return true;\n        }\n    }\n    pendingRecords() {\n        if (this.observer)\n            for (let mut of this.observer.takeRecords())\n                this.queue.push(mut);\n        return this.queue;\n    }\n    flush() {\n        let { view } = this;\n        if (!view.docView || this.flushingSoon > -1)\n            return;\n        let mutations = this.pendingRecords();\n        if (mutations.length)\n            this.queue = [];\n        let sel = view.domSelectionRange();\n        let newSel = !this.suppressingSelectionUpdates && !this.currentSelection.eq(sel) && hasFocusAndSelection(view) && !this.ignoreSelectionChange(sel);\n        let from = -1, to = -1, typeOver = false, added = [];\n        if (view.editable) {\n            for (let i = 0; i < mutations.length; i++) {\n                let result = this.registerMutation(mutations[i], added);\n                if (result) {\n                    from = from < 0 ? result.from : Math.min(result.from, from);\n                    to = to < 0 ? result.to : Math.max(result.to, to);\n                    if (result.typeOver)\n                        typeOver = true;\n                }\n            }\n        }\n        if (added.some(n => n.nodeName == \"BR\") && (view.input.lastKeyCode == 8 || view.input.lastKeyCode == 46)) {\n            // Browsers sometimes insert a bogus break node if you\n            // backspace out the last bit of text before an inline-flex node (#1552)\n            for (let node of added)\n                if (node.nodeName == \"BR\" && node.parentNode) {\n                    let after = node.nextSibling;\n                    if (after && after.nodeType == 1 && after.contentEditable == \"false\")\n                        node.parentNode.removeChild(node);\n                }\n        }\n        else if (gecko && added.length) {\n            let brs = added.filter(n => n.nodeName == \"BR\");\n            if (brs.length == 2) {\n                let [a, b] = brs;\n                if (a.parentNode && a.parentNode.parentNode == b.parentNode)\n                    b.remove();\n                else\n                    a.remove();\n            }\n            else {\n                let { focusNode } = this.currentSelection;\n                for (let br of brs) {\n                    let parent = br.parentNode;\n                    if (parent && parent.nodeName == \"LI\" && (!focusNode || blockParent(view, focusNode) != parent))\n                        br.remove();\n                }\n            }\n        }\n        let readSel = null;\n        // If it looks like the browser has reset the selection to the\n        // start of the document after focus, restore the selection from\n        // the state\n        if (from < 0 && newSel && view.input.lastFocus > Date.now() - 200 &&\n            Math.max(view.input.lastTouch, view.input.lastClick.time) < Date.now() - 300 &&\n            selectionCollapsed(sel) && (readSel = selectionFromDOM(view)) &&\n            readSel.eq(Selection.near(view.state.doc.resolve(0), 1))) {\n            view.input.lastFocus = 0;\n            selectionToDOM(view);\n            this.currentSelection.set(sel);\n            view.scrollToSelection();\n        }\n        else if (from > -1 || newSel) {\n            if (from > -1) {\n                view.docView.markDirty(from, to);\n                checkCSS(view);\n            }\n            if (view.input.badSafariComposition) {\n                view.input.badSafariComposition = false;\n                fixUpBadSafariComposition(view, added);\n            }\n            this.handleDOMChange(from, to, typeOver, added);\n            if (view.docView && view.docView.dirty)\n                view.updateState(view.state);\n            else if (!this.currentSelection.eq(sel))\n                selectionToDOM(view);\n            this.currentSelection.set(sel);\n        }\n    }\n    registerMutation(mut, added) {\n        // Ignore mutations inside nodes that were already noted as inserted\n        if (added.indexOf(mut.target) > -1)\n            return null;\n        let desc = this.view.docView.nearestDesc(mut.target);\n        if (mut.type == \"attributes\" &&\n            (desc == this.view.docView || mut.attributeName == \"contenteditable\" ||\n                // Firefox sometimes fires spurious events for null/empty styles\n                (mut.attributeName == \"style\" && !mut.oldValue && !mut.target.getAttribute(\"style\"))))\n            return null;\n        if (!desc || desc.ignoreMutation(mut))\n            return null;\n        if (mut.type == \"childList\") {\n            for (let i = 0; i < mut.addedNodes.length; i++) {\n                let node = mut.addedNodes[i];\n                added.push(node);\n                if (node.nodeType == 3)\n                    this.lastChangedTextNode = node;\n            }\n            if (desc.contentDOM && desc.contentDOM != desc.dom && !desc.contentDOM.contains(mut.target))\n                return { from: desc.posBefore, to: desc.posAfter };\n            let prev = mut.previousSibling, next = mut.nextSibling;\n            if (ie && ie_version <= 11 && mut.addedNodes.length) {\n                // IE11 gives us incorrect next/prev siblings for some\n                // insertions, so if there are added nodes, recompute those\n                for (let i = 0; i < mut.addedNodes.length; i++) {\n                    let { previousSibling, nextSibling } = mut.addedNodes[i];\n                    if (!previousSibling || Array.prototype.indexOf.call(mut.addedNodes, previousSibling) < 0)\n                        prev = previousSibling;\n                    if (!nextSibling || Array.prototype.indexOf.call(mut.addedNodes, nextSibling) < 0)\n                        next = nextSibling;\n                }\n            }\n            let fromOffset = prev && prev.parentNode == mut.target\n                ? domIndex(prev) + 1 : 0;\n            let from = desc.localPosFromDOM(mut.target, fromOffset, -1);\n            let toOffset = next && next.parentNode == mut.target\n                ? domIndex(next) : mut.target.childNodes.length;\n            let to = desc.localPosFromDOM(mut.target, toOffset, 1);\n            return { from, to };\n        }\n        else if (mut.type == \"attributes\") {\n            return { from: desc.posAtStart - desc.border, to: desc.posAtEnd + desc.border };\n        }\n        else { // \"characterData\"\n            this.lastChangedTextNode = mut.target;\n            return {\n                from: desc.posAtStart,\n                to: desc.posAtEnd,\n                // An event was generated for a text change that didn't change\n                // any text. Mark the dom change to fall back to assuming the\n                // selection was typed over with an identical value if it can't\n                // find another change.\n                typeOver: mut.target.nodeValue == mut.oldValue\n            };\n        }\n    }\n}\nlet cssChecked = new WeakMap();\nlet cssCheckWarned = false;\nfunction checkCSS(view) {\n    if (cssChecked.has(view))\n        return;\n    cssChecked.set(view, null);\n    if (['normal', 'nowrap', 'pre-line'].indexOf(getComputedStyle(view.dom).whiteSpace) !== -1) {\n        view.requiresGeckoHackNode = gecko;\n        if (cssCheckWarned)\n            return;\n        console[\"warn\"](\"ProseMirror expects the CSS white-space property to be set, preferably to 'pre-wrap'. It is recommended to load style/prosemirror.css from the prosemirror-view package.\");\n        cssCheckWarned = true;\n    }\n}\nfunction rangeToSelectionRange(view, range) {\n    let anchorNode = range.startContainer, anchorOffset = range.startOffset;\n    let focusNode = range.endContainer, focusOffset = range.endOffset;\n    let currentAnchor = view.domAtPos(view.state.selection.anchor);\n    // Since such a range doesn't distinguish between anchor and head,\n    // use a heuristic that flips it around if its end matches the\n    // current anchor.\n    if (isEquivalentPosition(currentAnchor.node, currentAnchor.offset, focusNode, focusOffset))\n        [anchorNode, anchorOffset, focusNode, focusOffset] = [focusNode, focusOffset, anchorNode, anchorOffset];\n    return { anchorNode, anchorOffset, focusNode, focusOffset };\n}\n// Used to work around a Safari Selection/shadow DOM bug\n// Based on https://github.com/codemirror/dev/issues/414 fix\nfunction safariShadowSelectionRange(view, selection) {\n    if (selection.getComposedRanges) {\n        let range = selection.getComposedRanges(view.root)[0];\n        if (range)\n            return rangeToSelectionRange(view, range);\n    }\n    let found;\n    function read(event) {\n        event.preventDefault();\n        event.stopImmediatePropagation();\n        found = event.getTargetRanges()[0];\n    }\n    // Because Safari (at least in 2018-2022) doesn't provide regular\n    // access to the selection inside a shadowRoot, we have to perform a\n    // ridiculous hack to get at it—using `execCommand` to trigger a\n    // `beforeInput` event so that we can read the target range from the\n    // event.\n    view.dom.addEventListener(\"beforeinput\", read, true);\n    document.execCommand(\"indent\");\n    view.dom.removeEventListener(\"beforeinput\", read, true);\n    return found ? rangeToSelectionRange(view, found) : null;\n}\nfunction blockParent(view, node) {\n    for (let p = node.parentNode; p && p != view.dom; p = p.parentNode) {\n        let desc = view.docView.nearestDesc(p, true);\n        if (desc && desc.node.isBlock)\n            return p;\n    }\n    return null;\n}\n// Kludge for a Safari bug where, on ending a composition in an\n// otherwise empty table cell, it randomly moves the composed text\n// into the table row around that cell, greatly confusing everything\n// (#188).\nfunction fixUpBadSafariComposition(view, addedNodes) {\n    var _a;\n    let { focusNode, focusOffset } = view.domSelectionRange();\n    for (let node of addedNodes) {\n        if (((_a = node.parentNode) === null || _a === void 0 ? void 0 : _a.nodeName) == \"TR\") {\n            let nextCell = node.nextSibling;\n            while (nextCell && (nextCell.nodeName != \"TD\" && nextCell.nodeName != \"TH\"))\n                nextCell = nextCell.nextSibling;\n            if (nextCell) {\n                let parent = nextCell;\n                for (;;) {\n                    let first = parent.firstChild;\n                    if (!first || first.nodeType != 1 || first.contentEditable == \"false\" ||\n                        /^(BR|IMG)$/.test(first.nodeName))\n                        break;\n                    parent = first;\n                }\n                parent.insertBefore(node, parent.firstChild);\n                if (focusNode == node)\n                    view.domSelection().collapse(node, focusOffset);\n            }\n            else {\n                node.parentNode.removeChild(node);\n            }\n        }\n    }\n}\n\n// Note that all referencing and parsing is done with the\n// start-of-operation selection and document, since that's the one\n// that the DOM represents. If any changes came in in the meantime,\n// the modification is mapped over those before it is applied, in\n// readDOMChange.\nfunction parseBetween(view, from_, to_) {\n    let { node: parent, fromOffset, toOffset, from, to } = view.docView.parseRange(from_, to_);\n    let domSel = view.domSelectionRange();\n    let find;\n    let anchor = domSel.anchorNode;\n    if (anchor && view.dom.contains(anchor.nodeType == 1 ? anchor : anchor.parentNode)) {\n        find = [{ node: anchor, offset: domSel.anchorOffset }];\n        if (!selectionCollapsed(domSel))\n            find.push({ node: domSel.focusNode, offset: domSel.focusOffset });\n    }\n    // Work around issue in Chrome where backspacing sometimes replaces\n    // the deleted content with a random BR node (issues #799, #831)\n    if (chrome && view.input.lastKeyCode === 8) {\n        for (let off = toOffset; off > fromOffset; off--) {\n            let node = parent.childNodes[off - 1], desc = node.pmViewDesc;\n            if (node.nodeName == \"BR\" && !desc) {\n                toOffset = off;\n                break;\n            }\n            if (!desc || desc.size)\n                break;\n        }\n    }\n    let startDoc = view.state.doc;\n    let parser = view.someProp(\"domParser\") || DOMParser.fromSchema(view.state.schema);\n    let $from = startDoc.resolve(from);\n    let sel = null, doc = parser.parse(parent, {\n        topNode: $from.parent,\n        topMatch: $from.parent.contentMatchAt($from.index()),\n        topOpen: true,\n        from: fromOffset,\n        to: toOffset,\n        preserveWhitespace: $from.parent.type.whitespace == \"pre\" ? \"full\" : true,\n        findPositions: find,\n        ruleFromNode,\n        context: $from\n    });\n    if (find && find[0].pos != null) {\n        let anchor = find[0].pos, head = find[1] && find[1].pos;\n        if (head == null)\n            head = anchor;\n        sel = { anchor: anchor + from, head: head + from };\n    }\n    return { doc, sel, from, to };\n}\nfunction ruleFromNode(dom) {\n    let desc = dom.pmViewDesc;\n    if (desc) {\n        return desc.parseRule();\n    }\n    else if (dom.nodeName == \"BR\" && dom.parentNode) {\n        // Safari replaces the list item or table cell with a BR\n        // directly in the list node (?!) if you delete the last\n        // character in a list item or table cell (#708, #862)\n        if (safari && /^(ul|ol)$/i.test(dom.parentNode.nodeName)) {\n            let skip = document.createElement(\"div\");\n            skip.appendChild(document.createElement(\"li\"));\n            return { skip };\n        }\n        else if (dom.parentNode.lastChild == dom || safari && /^(tr|table)$/i.test(dom.parentNode.nodeName)) {\n            return { ignore: true };\n        }\n    }\n    else if (dom.nodeName == \"IMG\" && dom.getAttribute(\"mark-placeholder\")) {\n        return { ignore: true };\n    }\n    return null;\n}\nconst isInline = /^(a|abbr|acronym|b|bd[io]|big|br|button|cite|code|data(list)?|del|dfn|em|i|img|ins|kbd|label|map|mark|meter|output|q|ruby|s|samp|small|span|strong|su[bp]|time|u|tt|var)$/i;\nfunction readDOMChange(view, from, to, typeOver, addedNodes) {\n    let compositionID = view.input.compositionPendingChanges || (view.composing ? view.input.compositionID : 0);\n    view.input.compositionPendingChanges = 0;\n    if (from < 0) {\n        let origin = view.input.lastSelectionTime > Date.now() - 50 ? view.input.lastSelectionOrigin : null;\n        let newSel = selectionFromDOM(view, origin);\n        if (newSel && !view.state.selection.eq(newSel)) {\n            if (chrome && android &&\n                view.input.lastKeyCode === 13 && Date.now() - 100 < view.input.lastKeyCodeTime &&\n                view.someProp(\"handleKeyDown\", f => f(view, keyEvent(13, \"Enter\"))))\n                return;\n            let tr = view.state.tr.setSelection(newSel);\n            if (origin == \"pointer\")\n                tr.setMeta(\"pointer\", true);\n            else if (origin == \"key\")\n                tr.scrollIntoView();\n            if (compositionID)\n                tr.setMeta(\"composition\", compositionID);\n            view.dispatch(tr);\n        }\n        return;\n    }\n    let $before = view.state.doc.resolve(from);\n    let shared = $before.sharedDepth(to);\n    from = $before.before(shared + 1);\n    to = view.state.doc.resolve(to).after(shared + 1);\n    let sel = view.state.selection;\n    let parse = parseBetween(view, from, to);\n    let doc = view.state.doc, compare = doc.slice(parse.from, parse.to);\n    let preferredPos, preferredSide;\n    // Prefer anchoring to end when Backspace is pressed\n    if (view.input.lastKeyCode === 8 && Date.now() - 100 < view.input.lastKeyCodeTime) {\n        preferredPos = view.state.selection.to;\n        preferredSide = \"end\";\n    }\n    else {\n        preferredPos = view.state.selection.from;\n        preferredSide = \"start\";\n    }\n    view.input.lastKeyCode = null;\n    let change = findDiff(compare.content, parse.doc.content, parse.from, preferredPos, preferredSide);\n    if (change)\n        view.input.domChangeCount++;\n    if ((ios && view.input.lastIOSEnter > Date.now() - 225 || android) &&\n        addedNodes.some(n => n.nodeType == 1 && !isInline.test(n.nodeName)) &&\n        (!change || change.endA >= change.endB) &&\n        view.someProp(\"handleKeyDown\", f => f(view, keyEvent(13, \"Enter\")))) {\n        view.input.lastIOSEnter = 0;\n        return;\n    }\n    if (!change) {\n        if (typeOver && sel instanceof TextSelection && !sel.empty && sel.$head.sameParent(sel.$anchor) &&\n            !view.composing && !(parse.sel && parse.sel.anchor != parse.sel.head)) {\n            change = { start: sel.from, endA: sel.to, endB: sel.to };\n        }\n        else {\n            if (parse.sel) {\n                let sel = resolveSelection(view, view.state.doc, parse.sel);\n                if (sel && !sel.eq(view.state.selection)) {\n                    let tr = view.state.tr.setSelection(sel);\n                    if (compositionID)\n                        tr.setMeta(\"composition\", compositionID);\n                    view.dispatch(tr);\n                }\n            }\n            return;\n        }\n    }\n    // Handle the case where overwriting a selection by typing matches\n    // the start or end of the selected content, creating a change\n    // that's smaller than what was actually overwritten.\n    if (view.state.selection.from < view.state.selection.to &&\n        change.start == change.endB &&\n        view.state.selection instanceof TextSelection) {\n        if (change.start > view.state.selection.from && change.start <= view.state.selection.from + 2 &&\n            view.state.selection.from >= parse.from) {\n            change.start = view.state.selection.from;\n        }\n        else if (change.endA < view.state.selection.to && change.endA >= view.state.selection.to - 2 &&\n            view.state.selection.to <= parse.to) {\n            change.endB += (view.state.selection.to - change.endA);\n            change.endA = view.state.selection.to;\n        }\n    }\n    // IE11 will insert a non-breaking space _ahead_ of the space after\n    // the cursor space when adding a space before another space. When\n    // that happened, adjust the change to cover the space instead.\n    if (ie && ie_version <= 11 && change.endB == change.start + 1 &&\n        change.endA == change.start && change.start > parse.from &&\n        parse.doc.textBetween(change.start - parse.from - 1, change.start - parse.from + 1) == \" \\u00a0\") {\n        change.start--;\n        change.endA--;\n        change.endB--;\n    }\n    let $from = parse.doc.resolveNoCache(change.start - parse.from);\n    let $to = parse.doc.resolveNoCache(change.endB - parse.from);\n    let $fromA = doc.resolve(change.start);\n    let inlineChange = $from.sameParent($to) && $from.parent.inlineContent && $fromA.end() >= change.endA;\n    // If this looks like the effect of pressing Enter (or was recorded\n    // as being an iOS enter press), just dispatch an Enter key instead.\n    if (((ios && view.input.lastIOSEnter > Date.now() - 225 &&\n        (!inlineChange || addedNodes.some(n => n.nodeName == \"DIV\" || n.nodeName == \"P\"))) ||\n        (!inlineChange && $from.pos < parse.doc.content.size &&\n            (!$from.sameParent($to) || !$from.parent.inlineContent) &&\n            $from.pos < $to.pos && !/\\S/.test(parse.doc.textBetween($from.pos, $to.pos, \"\", \"\")))) &&\n        view.someProp(\"handleKeyDown\", f => f(view, keyEvent(13, \"Enter\")))) {\n        view.input.lastIOSEnter = 0;\n        return;\n    }\n    // Same for backspace\n    if (view.state.selection.anchor > change.start &&\n        looksLikeBackspace(doc, change.start, change.endA, $from, $to) &&\n        view.someProp(\"handleKeyDown\", f => f(view, keyEvent(8, \"Backspace\")))) {\n        if (android && chrome)\n            view.domObserver.suppressSelectionUpdates(); // #820\n        return;\n    }\n    // Chrome will occasionally, during composition, delete the\n    // entire composition and then immediately insert it again. This is\n    // used to detect that situation.\n    if (chrome && change.endB == change.start)\n        view.input.lastChromeDelete = Date.now();\n    // This tries to detect Android virtual keyboard\n    // enter-and-pick-suggestion action. That sometimes (see issue\n    // #1059) first fires a DOM mutation, before moving the selection to\n    // the newly created block. And then, because ProseMirror cleans up\n    // the DOM selection, it gives up moving the selection entirely,\n    // leaving the cursor in the wrong place. When that happens, we drop\n    // the new paragraph from the initial change, and fire a simulated\n    // enter key afterwards.\n    if (android && !inlineChange && $from.start() != $to.start() && $to.parentOffset == 0 && $from.depth == $to.depth &&\n        parse.sel && parse.sel.anchor == parse.sel.head && parse.sel.head == change.endA) {\n        change.endB -= 2;\n        $to = parse.doc.resolveNoCache(change.endB - parse.from);\n        setTimeout(() => {\n            view.someProp(\"handleKeyDown\", function (f) { return f(view, keyEvent(13, \"Enter\")); });\n        }, 20);\n    }\n    let chFrom = change.start, chTo = change.endA;\n    let mkTr = (base) => {\n        let tr = base || view.state.tr.replace(chFrom, chTo, parse.doc.slice(change.start - parse.from, change.endB - parse.from));\n        if (parse.sel) {\n            let sel = resolveSelection(view, tr.doc, parse.sel);\n            // Chrome will sometimes, during composition, report the\n            // selection in the wrong place. If it looks like that is\n            // happening, don't update the selection.\n            // Edge just doesn't move the cursor forward when you start typing\n            // in an empty block or between br nodes.\n            if (sel && !(chrome && view.composing && sel.empty &&\n                (change.start != change.endB || view.input.lastChromeDelete < Date.now() - 100) &&\n                (sel.head == chFrom || sel.head == tr.mapping.map(chTo) - 1) ||\n                ie && sel.empty && sel.head == chFrom))\n                tr.setSelection(sel);\n        }\n        if (compositionID)\n            tr.setMeta(\"composition\", compositionID);\n        return tr.scrollIntoView();\n    };\n    let markChange;\n    if (inlineChange) {\n        if ($from.pos == $to.pos) { // Deletion\n            // IE11 sometimes weirdly moves the DOM selection around after\n            // backspacing out the first element in a textblock\n            if (ie && ie_version <= 11 && $from.parentOffset == 0) {\n                view.domObserver.suppressSelectionUpdates();\n                setTimeout(() => selectionToDOM(view), 20);\n            }\n            let tr = mkTr(view.state.tr.delete(chFrom, chTo));\n            let marks = doc.resolve(change.start).marksAcross(doc.resolve(change.endA));\n            if (marks)\n                tr.ensureMarks(marks);\n            view.dispatch(tr);\n        }\n        else if ( // Adding or removing a mark\n        change.endA == change.endB &&\n            (markChange = isMarkChange($from.parent.content.cut($from.parentOffset, $to.parentOffset), $fromA.parent.content.cut($fromA.parentOffset, change.endA - $fromA.start())))) {\n            let tr = mkTr(view.state.tr);\n            if (markChange.type == \"add\")\n                tr.addMark(chFrom, chTo, markChange.mark);\n            else\n                tr.removeMark(chFrom, chTo, markChange.mark);\n            view.dispatch(tr);\n        }\n        else if ($from.parent.child($from.index()).isText && $from.index() == $to.index() - ($to.textOffset ? 0 : 1)) {\n            // Both positions in the same text node -- simply insert text\n            let text = $from.parent.textBetween($from.parentOffset, $to.parentOffset);\n            let deflt = () => mkTr(view.state.tr.insertText(text, chFrom, chTo));\n            if (!view.someProp(\"handleTextInput\", f => f(view, chFrom, chTo, text, deflt)))\n                view.dispatch(deflt());\n        }\n        else {\n            view.dispatch(mkTr());\n        }\n    }\n    else {\n        view.dispatch(mkTr());\n    }\n}\nfunction resolveSelection(view, doc, parsedSel) {\n    if (Math.max(parsedSel.anchor, parsedSel.head) > doc.content.size)\n        return null;\n    return selectionBetween(view, doc.resolve(parsedSel.anchor), doc.resolve(parsedSel.head));\n}\n// Given two same-length, non-empty fragments of inline content,\n// determine whether the first could be created from the second by\n// removing or adding a single mark type.\nfunction isMarkChange(cur, prev) {\n    let curMarks = cur.firstChild.marks, prevMarks = prev.firstChild.marks;\n    let added = curMarks, removed = prevMarks, type, mark, update;\n    for (let i = 0; i < prevMarks.length; i++)\n        added = prevMarks[i].removeFromSet(added);\n    for (let i = 0; i < curMarks.length; i++)\n        removed = curMarks[i].removeFromSet(removed);\n    if (added.length == 1 && removed.length == 0) {\n        mark = added[0];\n        type = \"add\";\n        update = (node) => node.mark(mark.addToSet(node.marks));\n    }\n    else if (added.length == 0 && removed.length == 1) {\n        mark = removed[0];\n        type = \"remove\";\n        update = (node) => node.mark(mark.removeFromSet(node.marks));\n    }\n    else {\n        return null;\n    }\n    let updated = [];\n    for (let i = 0; i < prev.childCount; i++)\n        updated.push(update(prev.child(i)));\n    if (Fragment.from(updated).eq(cur))\n        return { mark, type };\n}\nfunction looksLikeBackspace(old, start, end, $newStart, $newEnd) {\n    if ( // The content must have shrunk\n    end - start <= $newEnd.pos - $newStart.pos ||\n        // newEnd must point directly at or after the end of the block that newStart points into\n        skipClosingAndOpening($newStart, true, false) < $newEnd.pos)\n        return false;\n    let $start = old.resolve(start);\n    // Handle the case where, rather than joining blocks, the change just removed an entire block\n    if (!$newStart.parent.isTextblock) {\n        let after = $start.nodeAfter;\n        return after != null && end == start + after.nodeSize;\n    }\n    // Start must be at the end of a block\n    if ($start.parentOffset < $start.parent.content.size || !$start.parent.isTextblock)\n        return false;\n    let $next = old.resolve(skipClosingAndOpening($start, true, true));\n    // The next textblock must start before end and end near it\n    if (!$next.parent.isTextblock || $next.pos > end ||\n        skipClosingAndOpening($next, true, false) < end)\n        return false;\n    // The fragments after the join point must match\n    return $newStart.parent.content.cut($newStart.parentOffset).eq($next.parent.content);\n}\nfunction skipClosingAndOpening($pos, fromEnd, mayOpen) {\n    let depth = $pos.depth, end = fromEnd ? $pos.end() : $pos.pos;\n    while (depth > 0 && (fromEnd || $pos.indexAfter(depth) == $pos.node(depth).childCount)) {\n        depth--;\n        end++;\n        fromEnd = false;\n    }\n    if (mayOpen) {\n        let next = $pos.node(depth).maybeChild($pos.indexAfter(depth));\n        while (next && !next.isLeaf) {\n            next = next.firstChild;\n            end++;\n        }\n    }\n    return end;\n}\nfunction findDiff(a, b, pos, preferredPos, preferredSide) {\n    let start = a.findDiffStart(b, pos);\n    if (start == null)\n        return null;\n    let { a: endA, b: endB } = a.findDiffEnd(b, pos + a.size, pos + b.size);\n    if (preferredSide == \"end\") {\n        let adjust = Math.max(0, start - Math.min(endA, endB));\n        preferredPos -= endA + adjust - start;\n    }\n    if (endA < start && a.size < b.size) {\n        let move = preferredPos <= start && preferredPos >= endA ? start - preferredPos : 0;\n        start -= move;\n        if (start && start < b.size && isSurrogatePair(b.textBetween(start - 1, start + 1)))\n            start += move ? 1 : -1;\n        endB = start + (endB - endA);\n        endA = start;\n    }\n    else if (endB < start) {\n        let move = preferredPos <= start && preferredPos >= endB ? start - preferredPos : 0;\n        start -= move;\n        if (start && start < a.size && isSurrogatePair(a.textBetween(start - 1, start + 1)))\n            start += move ? 1 : -1;\n        endA = start + (endA - endB);\n        endB = start;\n    }\n    return { start, endA, endB };\n}\nfunction isSurrogatePair(str) {\n    if (str.length != 2)\n        return false;\n    let a = str.charCodeAt(0), b = str.charCodeAt(1);\n    return a >= 0xDC00 && a <= 0xDFFF && b >= 0xD800 && b <= 0xDBFF;\n}\n\n/**\n@internal\n*/\nconst __parseFromClipboard = parseFromClipboard;\n/**\n@internal\n*/\nconst __endComposition = endComposition;\n/**\nAn editor view manages the DOM structure that represents an\neditable document. Its state and behavior are determined by its\n[props](https://prosemirror.net/docs/ref/#view.DirectEditorProps).\n*/\nclass EditorView {\n    /**\n    Create a view. `place` may be a DOM node that the editor should\n    be appended to, a function that will place it into the document,\n    or an object whose `mount` property holds the node to use as the\n    document container. If it is `null`, the editor will not be\n    added to the document.\n    */\n    constructor(place, props) {\n        this._root = null;\n        /**\n        @internal\n        */\n        this.focused = false;\n        /**\n        Kludge used to work around a Chrome bug @internal\n        */\n        this.trackWrites = null;\n        this.mounted = false;\n        /**\n        @internal\n        */\n        this.markCursor = null;\n        /**\n        @internal\n        */\n        this.cursorWrapper = null;\n        /**\n        @internal\n        */\n        this.lastSelectedViewDesc = undefined;\n        /**\n        @internal\n        */\n        this.input = new InputState;\n        this.prevDirectPlugins = [];\n        this.pluginViews = [];\n        /**\n        Holds `true` when a hack node is needed in Firefox to prevent the\n        [space is eaten issue](https://github.com/ProseMirror/prosemirror/issues/651)\n        @internal\n        */\n        this.requiresGeckoHackNode = false;\n        /**\n        When editor content is being dragged, this object contains\n        information about the dragged slice and whether it is being\n        copied or moved. At any other time, it is null.\n        */\n        this.dragging = null;\n        this._props = props;\n        this.state = props.state;\n        this.directPlugins = props.plugins || [];\n        this.directPlugins.forEach(checkStateComponent);\n        this.dispatch = this.dispatch.bind(this);\n        this.dom = (place && place.mount) || document.createElement(\"div\");\n        if (place) {\n            if (place.appendChild)\n                place.appendChild(this.dom);\n            else if (typeof place == \"function\")\n                place(this.dom);\n            else if (place.mount)\n                this.mounted = true;\n        }\n        this.editable = getEditable(this);\n        updateCursorWrapper(this);\n        this.nodeViews = buildNodeViews(this);\n        this.docView = docViewDesc(this.state.doc, computeDocDeco(this), viewDecorations(this), this.dom, this);\n        this.domObserver = new DOMObserver(this, (from, to, typeOver, added) => readDOMChange(this, from, to, typeOver, added));\n        this.domObserver.start();\n        initInput(this);\n        this.updatePluginViews();\n    }\n    /**\n    Holds `true` when a\n    [composition](https://w3c.github.io/uievents/#events-compositionevents)\n    is active.\n    */\n    get composing() { return this.input.composing; }\n    /**\n    The view's current [props](https://prosemirror.net/docs/ref/#view.EditorProps).\n    */\n    get props() {\n        if (this._props.state != this.state) {\n            let prev = this._props;\n            this._props = {};\n            for (let name in prev)\n                this._props[name] = prev[name];\n            this._props.state = this.state;\n        }\n        return this._props;\n    }\n    /**\n    Update the view's props. Will immediately cause an update to\n    the DOM.\n    */\n    update(props) {\n        if (props.handleDOMEvents != this._props.handleDOMEvents)\n            ensureListeners(this);\n        let prevProps = this._props;\n        this._props = props;\n        if (props.plugins) {\n            props.plugins.forEach(checkStateComponent);\n            this.directPlugins = props.plugins;\n        }\n        this.updateStateInner(props.state, prevProps);\n    }\n    /**\n    Update the view by updating existing props object with the object\n    given as argument. Equivalent to `view.update(Object.assign({},\n    view.props, props))`.\n    */\n    setProps(props) {\n        let updated = {};\n        for (let name in this._props)\n            updated[name] = this._props[name];\n        updated.state = this.state;\n        for (let name in props)\n            updated[name] = props[name];\n        this.update(updated);\n    }\n    /**\n    Update the editor's `state` prop, without touching any of the\n    other props.\n    */\n    updateState(state) {\n        this.updateStateInner(state, this._props);\n    }\n    updateStateInner(state, prevProps) {\n        var _a;\n        let prev = this.state, redraw = false, updateSel = false;\n        // When stored marks are added, stop composition, so that they can\n        // be displayed.\n        if (state.storedMarks && this.composing) {\n            clearComposition(this);\n            updateSel = true;\n        }\n        this.state = state;\n        let pluginsChanged = prev.plugins != state.plugins || this._props.plugins != prevProps.plugins;\n        if (pluginsChanged || this._props.plugins != prevProps.plugins || this._props.nodeViews != prevProps.nodeViews) {\n            let nodeViews = buildNodeViews(this);\n            if (changedNodeViews(nodeViews, this.nodeViews)) {\n                this.nodeViews = nodeViews;\n                redraw = true;\n            }\n        }\n        if (pluginsChanged || prevProps.handleDOMEvents != this._props.handleDOMEvents) {\n            ensureListeners(this);\n        }\n        this.editable = getEditable(this);\n        updateCursorWrapper(this);\n        let innerDeco = viewDecorations(this), outerDeco = computeDocDeco(this);\n        let scroll = prev.plugins != state.plugins && !prev.doc.eq(state.doc) ? \"reset\"\n            : state.scrollToSelection > prev.scrollToSelection ? \"to selection\" : \"preserve\";\n        let updateDoc = redraw || !this.docView.matchesNode(state.doc, outerDeco, innerDeco);\n        if (updateDoc || !state.selection.eq(prev.selection))\n            updateSel = true;\n        let oldScrollPos = scroll == \"preserve\" && updateSel && this.dom.style.overflowAnchor == null && storeScrollPos(this);\n        if (updateSel) {\n            this.domObserver.stop();\n            // Work around an issue in Chrome, IE, and Edge where changing\n            // the DOM around an active selection puts it into a broken\n            // state where the thing the user sees differs from the\n            // selection reported by the Selection object (#710, #973,\n            // #1011, #1013, #1035).\n            let forceSelUpdate = updateDoc && (ie || chrome) && !this.composing &&\n                !prev.selection.empty && !state.selection.empty && selectionContextChanged(prev.selection, state.selection);\n            if (updateDoc) {\n                // If the node that the selection points into is written to,\n                // Chrome sometimes starts misreporting the selection, so this\n                // tracks that and forces a selection reset when our update\n                // did write to the node.\n                let chromeKludge = chrome ? (this.trackWrites = this.domSelectionRange().focusNode) : null;\n                if (this.composing)\n                    this.input.compositionNode = findCompositionNode(this);\n                if (redraw || !this.docView.update(state.doc, outerDeco, innerDeco, this)) {\n                    this.docView.updateOuterDeco(outerDeco);\n                    this.docView.destroy();\n                    this.docView = docViewDesc(state.doc, outerDeco, innerDeco, this.dom, this);\n                }\n                if (chromeKludge && (!this.trackWrites || !this.dom.contains(this.trackWrites)))\n                    forceSelUpdate = true;\n            }\n            // Work around for an issue where an update arriving right between\n            // a DOM selection change and the \"selectionchange\" event for it\n            // can cause a spurious DOM selection update, disrupting mouse\n            // drag selection.\n            if (forceSelUpdate ||\n                !(this.input.mouseDown && this.domObserver.currentSelection.eq(this.domSelectionRange()) &&\n                    anchorInRightPlace(this))) {\n                selectionToDOM(this, forceSelUpdate);\n            }\n            else {\n                syncNodeSelection(this, state.selection);\n                this.domObserver.setCurSelection();\n            }\n            this.domObserver.start();\n        }\n        this.updatePluginViews(prev);\n        if (((_a = this.dragging) === null || _a === void 0 ? void 0 : _a.node) && !prev.doc.eq(state.doc))\n            this.updateDraggedNode(this.dragging, prev);\n        if (scroll == \"reset\") {\n            this.dom.scrollTop = 0;\n        }\n        else if (scroll == \"to selection\") {\n            this.scrollToSelection();\n        }\n        else if (oldScrollPos) {\n            resetScrollPos(oldScrollPos);\n        }\n    }\n    /**\n    @internal\n    */\n    scrollToSelection() {\n        let startDOM = this.domSelectionRange().focusNode;\n        if (!startDOM || !this.dom.contains(startDOM.nodeType == 1 ? startDOM : startDOM.parentNode)) ;\n        else if (this.someProp(\"handleScrollToSelection\", f => f(this))) ;\n        else if (this.state.selection instanceof NodeSelection) {\n            let target = this.docView.domAfterPos(this.state.selection.from);\n            if (target.nodeType == 1)\n                scrollRectIntoView(this, target.getBoundingClientRect(), startDOM);\n        }\n        else {\n            scrollRectIntoView(this, this.coordsAtPos(this.state.selection.head, 1), startDOM);\n        }\n    }\n    destroyPluginViews() {\n        let view;\n        while (view = this.pluginViews.pop())\n            if (view.destroy)\n                view.destroy();\n    }\n    updatePluginViews(prevState) {\n        if (!prevState || prevState.plugins != this.state.plugins || this.directPlugins != this.prevDirectPlugins) {\n            this.prevDirectPlugins = this.directPlugins;\n            this.destroyPluginViews();\n            for (let i = 0; i < this.directPlugins.length; i++) {\n                let plugin = this.directPlugins[i];\n                if (plugin.spec.view)\n                    this.pluginViews.push(plugin.spec.view(this));\n            }\n            for (let i = 0; i < this.state.plugins.length; i++) {\n                let plugin = this.state.plugins[i];\n                if (plugin.spec.view)\n                    this.pluginViews.push(plugin.spec.view(this));\n            }\n        }\n        else {\n            for (let i = 0; i < this.pluginViews.length; i++) {\n                let pluginView = this.pluginViews[i];\n                if (pluginView.update)\n                    pluginView.update(this, prevState);\n            }\n        }\n    }\n    updateDraggedNode(dragging, prev) {\n        let sel = dragging.node, found = -1;\n        if (this.state.doc.nodeAt(sel.from) == sel.node) {\n            found = sel.from;\n        }\n        else {\n            let movedPos = sel.from + (this.state.doc.content.size - prev.doc.content.size);\n            let moved = movedPos > 0 && this.state.doc.nodeAt(movedPos);\n            if (moved == sel.node)\n                found = movedPos;\n        }\n        this.dragging = new Dragging(dragging.slice, dragging.move, found < 0 ? undefined : NodeSelection.create(this.state.doc, found));\n    }\n    someProp(propName, f) {\n        let prop = this._props && this._props[propName], value;\n        if (prop != null && (value = f ? f(prop) : prop))\n            return value;\n        for (let i = 0; i < this.directPlugins.length; i++) {\n            let prop = this.directPlugins[i].props[propName];\n            if (prop != null && (value = f ? f(prop) : prop))\n                return value;\n        }\n        let plugins = this.state.plugins;\n        if (plugins)\n            for (let i = 0; i < plugins.length; i++) {\n                let prop = plugins[i].props[propName];\n                if (prop != null && (value = f ? f(prop) : prop))\n                    return value;\n            }\n    }\n    /**\n    Query whether the view has focus.\n    */\n    hasFocus() {\n        // Work around IE not handling focus correctly if resize handles are shown.\n        // If the cursor is inside an element with resize handles, activeElement\n        // will be that element instead of this.dom.\n        if (ie) {\n            // If activeElement is within this.dom, and there are no other elements\n            // setting `contenteditable` to false in between, treat it as focused.\n            let node = this.root.activeElement;\n            if (node == this.dom)\n                return true;\n            if (!node || !this.dom.contains(node))\n                return false;\n            while (node && this.dom != node && this.dom.contains(node)) {\n                if (node.contentEditable == 'false')\n                    return false;\n                node = node.parentElement;\n            }\n            return true;\n        }\n        return this.root.activeElement == this.dom;\n    }\n    /**\n    Focus the editor.\n    */\n    focus() {\n        this.domObserver.stop();\n        if (this.editable)\n            focusPreventScroll(this.dom);\n        selectionToDOM(this);\n        this.domObserver.start();\n    }\n    /**\n    Get the document root in which the editor exists. This will\n    usually be the top-level `document`, but might be a [shadow\n    DOM](https://developer.mozilla.org/en-US/docs/Web/Web_Components/Shadow_DOM)\n    root if the editor is inside one.\n    */\n    get root() {\n        let cached = this._root;\n        if (cached == null)\n            for (let search = this.dom.parentNode; search; search = search.parentNode) {\n                if (search.nodeType == 9 || (search.nodeType == 11 && search.host)) {\n                    if (!search.getSelection)\n                        Object.getPrototypeOf(search).getSelection = () => search.ownerDocument.getSelection();\n                    return this._root = search;\n                }\n            }\n        return cached || document;\n    }\n    /**\n    When an existing editor view is moved to a new document or\n    shadow tree, call this to make it recompute its root.\n    */\n    updateRoot() {\n        this._root = null;\n    }\n    /**\n    Given a pair of viewport coordinates, return the document\n    position that corresponds to them. May return null if the given\n    coordinates aren't inside of the editor. When an object is\n    returned, its `pos` property is the position nearest to the\n    coordinates, and its `inside` property holds the position of the\n    inner node that the position falls inside of, or -1 if it is at\n    the top level, not in any node.\n    */\n    posAtCoords(coords) {\n        return posAtCoords(this, coords);\n    }\n    /**\n    Returns the viewport rectangle at a given document position.\n    `left` and `right` will be the same number, as this returns a\n    flat cursor-ish rectangle. If the position is between two things\n    that aren't directly adjacent, `side` determines which element\n    is used. When < 0, the element before the position is used,\n    otherwise the element after.\n    */\n    coordsAtPos(pos, side = 1) {\n        return coordsAtPos(this, pos, side);\n    }\n    /**\n    Find the DOM position that corresponds to the given document\n    position. When `side` is negative, find the position as close as\n    possible to the content before the position. When positive,\n    prefer positions close to the content after the position. When\n    zero, prefer as shallow a position as possible.\n    \n    Note that you should **not** mutate the editor's internal DOM,\n    only inspect it (and even that is usually not necessary).\n    */\n    domAtPos(pos, side = 0) {\n        return this.docView.domFromPos(pos, side);\n    }\n    /**\n    Find the DOM node that represents the document node after the\n    given position. May return `null` when the position doesn't point\n    in front of a node or if the node is inside an opaque node view.\n    \n    This is intended to be able to call things like\n    `getBoundingClientRect` on that DOM node. Do **not** mutate the\n    editor DOM directly, or add styling this way, since that will be\n    immediately overriden by the editor as it redraws the node.\n    */\n    nodeDOM(pos) {\n        let desc = this.docView.descAt(pos);\n        return desc ? desc.nodeDOM : null;\n    }\n    /**\n    Find the document position that corresponds to a given DOM\n    position. (Whenever possible, it is preferable to inspect the\n    document structure directly, rather than poking around in the\n    DOM, but sometimes—for example when interpreting an event\n    target—you don't have a choice.)\n    \n    The `bias` parameter can be used to influence which side of a DOM\n    node to use when the position is inside a leaf node.\n    */\n    posAtDOM(node, offset, bias = -1) {\n        let pos = this.docView.posFromDOM(node, offset, bias);\n        if (pos == null)\n            throw new RangeError(\"DOM position not inside the editor\");\n        return pos;\n    }\n    /**\n    Find out whether the selection is at the end of a textblock when\n    moving in a given direction. When, for example, given `\"left\"`,\n    it will return true if moving left from the current cursor\n    position would leave that position's parent textblock. Will apply\n    to the view's current state by default, but it is possible to\n    pass a different state.\n    */\n    endOfTextblock(dir, state) {\n        return endOfTextblock(this, state || this.state, dir);\n    }\n    /**\n    Run the editor's paste logic with the given HTML string. The\n    `event`, if given, will be passed to the\n    [`handlePaste`](https://prosemirror.net/docs/ref/#view.EditorProps.handlePaste) hook.\n    */\n    pasteHTML(html, event) {\n        return doPaste(this, \"\", html, false, event || new ClipboardEvent(\"paste\"));\n    }\n    /**\n    Run the editor's paste logic with the given plain-text input.\n    */\n    pasteText(text, event) {\n        return doPaste(this, text, null, true, event || new ClipboardEvent(\"paste\"));\n    }\n    /**\n    Serialize the given slice as it would be if it was copied from\n    this editor. Returns a DOM element that contains a\n    representation of the slice as its children, a textual\n    representation, and the transformed slice (which can be\n    different from the given input due to hooks like\n    [`transformCopied`](https://prosemirror.net/docs/ref/#view.EditorProps.transformCopied)).\n    */\n    serializeForClipboard(slice) {\n        return serializeForClipboard(this, slice);\n    }\n    /**\n    Removes the editor from the DOM and destroys all [node\n    views](https://prosemirror.net/docs/ref/#view.NodeView).\n    */\n    destroy() {\n        if (!this.docView)\n            return;\n        destroyInput(this);\n        this.destroyPluginViews();\n        if (this.mounted) {\n            this.docView.update(this.state.doc, [], viewDecorations(this), this);\n            this.dom.textContent = \"\";\n        }\n        else if (this.dom.parentNode) {\n            this.dom.parentNode.removeChild(this.dom);\n        }\n        this.docView.destroy();\n        this.docView = null;\n        clearReusedRange();\n    }\n    /**\n    This is true when the view has been\n    [destroyed](https://prosemirror.net/docs/ref/#view.EditorView.destroy) (and thus should not be\n    used anymore).\n    */\n    get isDestroyed() {\n        return this.docView == null;\n    }\n    /**\n    Used for testing.\n    */\n    dispatchEvent(event) {\n        return dispatchEvent(this, event);\n    }\n    /**\n    @internal\n    */\n    domSelectionRange() {\n        let sel = this.domSelection();\n        if (!sel)\n            return { focusNode: null, focusOffset: 0, anchorNode: null, anchorOffset: 0 };\n        return safari && this.root.nodeType === 11 &&\n            deepActiveElement(this.dom.ownerDocument) == this.dom && safariShadowSelectionRange(this, sel) || sel;\n    }\n    /**\n    @internal\n    */\n    domSelection() {\n        return this.root.getSelection();\n    }\n}\nEditorView.prototype.dispatch = function (tr) {\n    let dispatchTransaction = this._props.dispatchTransaction;\n    if (dispatchTransaction)\n        dispatchTransaction.call(this, tr);\n    else\n        this.updateState(this.state.apply(tr));\n};\nfunction computeDocDeco(view) {\n    let attrs = Object.create(null);\n    attrs.class = \"ProseMirror\";\n    attrs.contenteditable = String(view.editable);\n    view.someProp(\"attributes\", value => {\n        if (typeof value == \"function\")\n            value = value(view.state);\n        if (value)\n            for (let attr in value) {\n                if (attr == \"class\")\n                    attrs.class += \" \" + value[attr];\n                else if (attr == \"style\")\n                    attrs.style = (attrs.style ? attrs.style + \";\" : \"\") + value[attr];\n                else if (!attrs[attr] && attr != \"contenteditable\" && attr != \"nodeName\")\n                    attrs[attr] = String(value[attr]);\n            }\n    });\n    if (!attrs.translate)\n        attrs.translate = \"no\";\n    return [Decoration.node(0, view.state.doc.content.size, attrs)];\n}\nfunction updateCursorWrapper(view) {\n    if (view.markCursor) {\n        let dom = document.createElement(\"img\");\n        dom.className = \"ProseMirror-separator\";\n        dom.setAttribute(\"mark-placeholder\", \"true\");\n        dom.setAttribute(\"alt\", \"\");\n        view.cursorWrapper = { dom, deco: Decoration.widget(view.state.selection.from, dom, { raw: true, marks: view.markCursor }) };\n    }\n    else {\n        view.cursorWrapper = null;\n    }\n}\nfunction getEditable(view) {\n    return !view.someProp(\"editable\", value => value(view.state) === false);\n}\nfunction selectionContextChanged(sel1, sel2) {\n    let depth = Math.min(sel1.$anchor.sharedDepth(sel1.head), sel2.$anchor.sharedDepth(sel2.head));\n    return sel1.$anchor.start(depth) != sel2.$anchor.start(depth);\n}\nfunction buildNodeViews(view) {\n    let result = Object.create(null);\n    function add(obj) {\n        for (let prop in obj)\n            if (!Object.prototype.hasOwnProperty.call(result, prop))\n                result[prop] = obj[prop];\n    }\n    view.someProp(\"nodeViews\", add);\n    view.someProp(\"markViews\", add);\n    return result;\n}\nfunction changedNodeViews(a, b) {\n    let nA = 0, nB = 0;\n    for (let prop in a) {\n        if (a[prop] != b[prop])\n            return true;\n        nA++;\n    }\n    for (let _ in b)\n        nB++;\n    return nA != nB;\n}\nfunction checkStateComponent(plugin) {\n    if (plugin.spec.state || plugin.spec.filterTransaction || plugin.spec.appendTransaction)\n        throw new RangeError(\"Plugins passed directly to the view must not have a state component\");\n}\n\nexport { Decoration, DecorationSet, EditorView, __endComposition, __parseFromClipboard };\n"],"names":[],"ignoreList":[0],"sourceRoot":""}\n//# sourceURL=webpack-internal:///(ssr)/./node_modules/prosemirror-view/dist/index.js\n");
-
-/***/ })
-
-};
-;
\ No newline at end of file
diff --git a/.next/server/vendor-chunks/react-easy-crop.js b/.next/server/vendor-chunks/react-easy-crop.js
deleted file mode 100644
index 82f01c5..0000000
--- a/.next/server/vendor-chunks/react-easy-crop.js
+++ /dev/null
@@ -1,25 +0,0 @@
-"use strict";
-/*
- * ATTENTION: An "eval-source-map" devtool has been used.
- * This devtool is neither made for production nor for readable output files.
- * It uses "eval()" calls to create a separate source file with attached SourceMaps in the browser devtools.
- * If you are trying to read the output file, select a different devtool (https://webpack.js.org/configuration/devtool/)
- * or disable the default devtool with "devtool: false".
- * If you are looking for production-ready output files, see mode: "production" (https://webpack.js.org/configuration/mode/).
- */
-exports.id = "vendor-chunks/react-easy-crop";
-exports.ids = ["vendor-chunks/react-easy-crop"];
-exports.modules = {
-
-/***/ "(ssr)/./node_modules/react-easy-crop/index.module.mjs":
-/*!*******************************************************!*\
- !*** ./node_modules/react-easy-crop/index.module.mjs ***!
- \*******************************************************/
-/***/ ((__unused_webpack___webpack_module__, __webpack_exports__, __webpack_require__) => {
-
-eval("__webpack_require__.r(__webpack_exports__);\n/* harmony export */ __webpack_require__.d(__webpack_exports__, {\n/* harmony export */ \"default\": () => (/* binding */ Cropper),\n/* harmony export */ getInitialCropFromCroppedAreaPercentages: () => (/* binding */ getInitialCropFromCroppedAreaPercentages),\n/* harmony export */ getInitialCropFromCroppedAreaPixels: () => (/* binding */ getInitialCropFromCroppedAreaPixels)\n/* harmony export */ });\n/* harmony import */ var tslib__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! tslib */ \"(ssr)/./node_modules/tslib/tslib.es6.mjs\");\n/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! react */ \"(ssr)/./node_modules/next/dist/server/route-modules/app-page/vendored/ssr/react.js\");\n/* harmony import */ var normalize_wheel__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! normalize-wheel */ \"(ssr)/./node_modules/normalize-wheel/index.js\");\n\n\n\n\n/**\r\n * Compute the dimension of the crop area based on media size,\r\n * aspect ratio and optionally rotation\r\n */\nfunction getCropSize(mediaWidth, mediaHeight, containerWidth, containerHeight, aspect, rotation) {\n if (rotation === void 0) {\n rotation = 0;\n }\n var _a = rotateSize(mediaWidth, mediaHeight, rotation),\n width = _a.width,\n height = _a.height;\n var fittingWidth = Math.min(width, containerWidth);\n var fittingHeight = Math.min(height, containerHeight);\n if (fittingWidth > fittingHeight * aspect) {\n return {\n width: fittingHeight * aspect,\n height: fittingHeight\n };\n }\n return {\n width: fittingWidth,\n height: fittingWidth / aspect\n };\n}\n/**\r\n * Compute media zoom.\r\n * We fit the media into the container with \"max-width: 100%; max-height: 100%;\"\r\n */\nfunction getMediaZoom(mediaSize) {\n // Take the axis with more pixels to improve accuracy\n return mediaSize.width > mediaSize.height ? mediaSize.width / mediaSize.naturalWidth : mediaSize.height / mediaSize.naturalHeight;\n}\n/**\r\n * Ensure a new media position stays in the crop area.\r\n */\nfunction restrictPosition(position, mediaSize, cropSize, zoom, rotation) {\n if (rotation === void 0) {\n rotation = 0;\n }\n var _a = rotateSize(mediaSize.width, mediaSize.height, rotation),\n width = _a.width,\n height = _a.height;\n return {\n x: restrictPositionCoord(position.x, width, cropSize.width, zoom),\n y: restrictPositionCoord(position.y, height, cropSize.height, zoom)\n };\n}\nfunction restrictPositionCoord(position, mediaSize, cropSize, zoom) {\n var maxPosition = mediaSize * zoom / 2 - cropSize / 2;\n return clamp(position, -maxPosition, maxPosition);\n}\nfunction getDistanceBetweenPoints(pointA, pointB) {\n return Math.sqrt(Math.pow(pointA.y - pointB.y, 2) + Math.pow(pointA.x - pointB.x, 2));\n}\nfunction getRotationBetweenPoints(pointA, pointB) {\n return Math.atan2(pointB.y - pointA.y, pointB.x - pointA.x) * 180 / Math.PI;\n}\n/**\r\n * Compute the output cropped area of the media in percentages and pixels.\r\n * x/y are the top-left coordinates on the src media\r\n */\nfunction computeCroppedArea(crop, mediaSize, cropSize, aspect, zoom, rotation, restrictPosition) {\n if (rotation === void 0) {\n rotation = 0;\n }\n if (restrictPosition === void 0) {\n restrictPosition = true;\n }\n // if the media is rotated by the user, we cannot limit the position anymore\n // as it might need to be negative.\n var limitAreaFn = restrictPosition ? limitArea : noOp;\n var mediaBBoxSize = rotateSize(mediaSize.width, mediaSize.height, rotation);\n var mediaNaturalBBoxSize = rotateSize(mediaSize.naturalWidth, mediaSize.naturalHeight, rotation);\n // calculate the crop area in percentages\n // in the rotated space\n var croppedAreaPercentages = {\n x: limitAreaFn(100, ((mediaBBoxSize.width - cropSize.width / zoom) / 2 - crop.x / zoom) / mediaBBoxSize.width * 100),\n y: limitAreaFn(100, ((mediaBBoxSize.height - cropSize.height / zoom) / 2 - crop.y / zoom) / mediaBBoxSize.height * 100),\n width: limitAreaFn(100, cropSize.width / mediaBBoxSize.width * 100 / zoom),\n height: limitAreaFn(100, cropSize.height / mediaBBoxSize.height * 100 / zoom)\n };\n // we compute the pixels size naively\n var widthInPixels = Math.round(limitAreaFn(mediaNaturalBBoxSize.width, croppedAreaPercentages.width * mediaNaturalBBoxSize.width / 100));\n var heightInPixels = Math.round(limitAreaFn(mediaNaturalBBoxSize.height, croppedAreaPercentages.height * mediaNaturalBBoxSize.height / 100));\n var isImgWiderThanHigh = mediaNaturalBBoxSize.width >= mediaNaturalBBoxSize.height * aspect;\n // then we ensure the width and height exactly match the aspect (to avoid rounding approximations)\n // if the media is wider than high, when zoom is 0, the crop height will be equals to image height\n // thus we want to compute the width from the height and aspect for accuracy.\n // Otherwise, we compute the height from width and aspect.\n var sizePixels = isImgWiderThanHigh ? {\n width: Math.round(heightInPixels * aspect),\n height: heightInPixels\n } : {\n width: widthInPixels,\n height: Math.round(widthInPixels / aspect)\n };\n var croppedAreaPixels = (0,tslib__WEBPACK_IMPORTED_MODULE_2__.__assign)((0,tslib__WEBPACK_IMPORTED_MODULE_2__.__assign)({}, sizePixels), {\n x: Math.round(limitAreaFn(mediaNaturalBBoxSize.width - sizePixels.width, croppedAreaPercentages.x * mediaNaturalBBoxSize.width / 100)),\n y: Math.round(limitAreaFn(mediaNaturalBBoxSize.height - sizePixels.height, croppedAreaPercentages.y * mediaNaturalBBoxSize.height / 100))\n });\n return {\n croppedAreaPercentages: croppedAreaPercentages,\n croppedAreaPixels: croppedAreaPixels\n };\n}\n/**\r\n * Ensure the returned value is between 0 and max\r\n */\nfunction limitArea(max, value) {\n return Math.min(max, Math.max(0, value));\n}\nfunction noOp(_max, value) {\n return value;\n}\n/**\r\n * Compute crop and zoom from the croppedAreaPercentages.\r\n */\nfunction getInitialCropFromCroppedAreaPercentages(croppedAreaPercentages, mediaSize, rotation, cropSize, minZoom, maxZoom) {\n var mediaBBoxSize = rotateSize(mediaSize.width, mediaSize.height, rotation);\n // This is the inverse process of computeCroppedArea\n var zoom = clamp(cropSize.width / mediaBBoxSize.width * (100 / croppedAreaPercentages.width), minZoom, maxZoom);\n var crop = {\n x: zoom * mediaBBoxSize.width / 2 - cropSize.width / 2 - mediaBBoxSize.width * zoom * (croppedAreaPercentages.x / 100),\n y: zoom * mediaBBoxSize.height / 2 - cropSize.height / 2 - mediaBBoxSize.height * zoom * (croppedAreaPercentages.y / 100)\n };\n return {\n crop: crop,\n zoom: zoom\n };\n}\n/**\r\n * Compute zoom from the croppedAreaPixels\r\n */\nfunction getZoomFromCroppedAreaPixels(croppedAreaPixels, mediaSize, cropSize) {\n var mediaZoom = getMediaZoom(mediaSize);\n return cropSize.height > cropSize.width ? cropSize.height / (croppedAreaPixels.height * mediaZoom) : cropSize.width / (croppedAreaPixels.width * mediaZoom);\n}\n/**\r\n * Compute crop and zoom from the croppedAreaPixels\r\n */\nfunction getInitialCropFromCroppedAreaPixels(croppedAreaPixels, mediaSize, rotation, cropSize, minZoom, maxZoom) {\n if (rotation === void 0) {\n rotation = 0;\n }\n var mediaNaturalBBoxSize = rotateSize(mediaSize.naturalWidth, mediaSize.naturalHeight, rotation);\n var zoom = clamp(getZoomFromCroppedAreaPixels(croppedAreaPixels, mediaSize, cropSize), minZoom, maxZoom);\n var cropZoom = cropSize.height > cropSize.width ? cropSize.height / croppedAreaPixels.height : cropSize.width / croppedAreaPixels.width;\n var crop = {\n x: ((mediaNaturalBBoxSize.width - croppedAreaPixels.width) / 2 - croppedAreaPixels.x) * cropZoom,\n y: ((mediaNaturalBBoxSize.height - croppedAreaPixels.height) / 2 - croppedAreaPixels.y) * cropZoom\n };\n return {\n crop: crop,\n zoom: zoom\n };\n}\n/**\r\n * Return the point that is the center of point a and b\r\n */\nfunction getCenter(a, b) {\n return {\n x: (b.x + a.x) / 2,\n y: (b.y + a.y) / 2\n };\n}\nfunction getRadianAngle(degreeValue) {\n return degreeValue * Math.PI / 180;\n}\n/**\r\n * Returns the new bounding area of a rotated rectangle.\r\n */\nfunction rotateSize(width, height, rotation) {\n var rotRad = getRadianAngle(rotation);\n return {\n width: Math.abs(Math.cos(rotRad) * width) + Math.abs(Math.sin(rotRad) * height),\n height: Math.abs(Math.sin(rotRad) * width) + Math.abs(Math.cos(rotRad) * height)\n };\n}\n/**\r\n * Clamp value between min and max\r\n */\nfunction clamp(value, min, max) {\n return Math.min(Math.max(value, min), max);\n}\n/**\r\n * Combine multiple class names into a single string.\r\n */\nfunction classNames() {\n var args = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n args[_i] = arguments[_i];\n }\n return args.filter(function (value) {\n if (typeof value === 'string' && value.length > 0) {\n return true;\n }\n return false;\n }).join(' ').trim();\n}\n\nvar css_248z = \".reactEasyCrop_Container {\\n position: absolute;\\n top: 0;\\n left: 0;\\n right: 0;\\n bottom: 0;\\n overflow: hidden;\\n user-select: none;\\n touch-action: none;\\n cursor: move;\\n display: flex;\\n justify-content: center;\\n align-items: center;\\n}\\n\\n.reactEasyCrop_Image,\\n.reactEasyCrop_Video {\\n will-change: transform; /* this improves performances and prevent painting issues on iOS Chrome */\\n}\\n\\n.reactEasyCrop_Contain {\\n max-width: 100%;\\n max-height: 100%;\\n margin: auto;\\n position: absolute;\\n top: 0;\\n bottom: 0;\\n left: 0;\\n right: 0;\\n}\\n.reactEasyCrop_Cover_Horizontal {\\n width: 100%;\\n height: auto;\\n}\\n.reactEasyCrop_Cover_Vertical {\\n width: auto;\\n height: 100%;\\n}\\n\\n.reactEasyCrop_CropArea {\\n position: absolute;\\n left: 50%;\\n top: 50%;\\n transform: translate(-50%, -50%);\\n border: 1px solid rgba(255, 255, 255, 0.5);\\n box-sizing: border-box;\\n box-shadow: 0 0 0 9999em;\\n color: rgba(0, 0, 0, 0.5);\\n overflow: hidden;\\n}\\n\\n.reactEasyCrop_CropAreaRound {\\n border-radius: 50%;\\n}\\n\\n.reactEasyCrop_CropAreaGrid::before {\\n content: ' ';\\n box-sizing: border-box;\\n position: absolute;\\n border: 1px solid rgba(255, 255, 255, 0.5);\\n top: 0;\\n bottom: 0;\\n left: 33.33%;\\n right: 33.33%;\\n border-top: 0;\\n border-bottom: 0;\\n}\\n\\n.reactEasyCrop_CropAreaGrid::after {\\n content: ' ';\\n box-sizing: border-box;\\n position: absolute;\\n border: 1px solid rgba(255, 255, 255, 0.5);\\n top: 33.33%;\\n bottom: 33.33%;\\n left: 0;\\n right: 0;\\n border-left: 0;\\n border-right: 0;\\n}\\n\";\n\nvar MIN_ZOOM = 1;\nvar MAX_ZOOM = 3;\nvar KEYBOARD_STEP = 1;\nvar Cropper = /** @class */function (_super) {\n (0,tslib__WEBPACK_IMPORTED_MODULE_2__.__extends)(Cropper, _super);\n function Cropper() {\n var _this = _super !== null && _super.apply(this, arguments) || this;\n _this.cropperRef = react__WEBPACK_IMPORTED_MODULE_0__.createRef();\n _this.imageRef = react__WEBPACK_IMPORTED_MODULE_0__.createRef();\n _this.videoRef = react__WEBPACK_IMPORTED_MODULE_0__.createRef();\n _this.containerPosition = {\n x: 0,\n y: 0\n };\n _this.containerRef = null;\n _this.styleRef = null;\n _this.containerRect = null;\n _this.mediaSize = {\n width: 0,\n height: 0,\n naturalWidth: 0,\n naturalHeight: 0\n };\n _this.dragStartPosition = {\n x: 0,\n y: 0\n };\n _this.dragStartCrop = {\n x: 0,\n y: 0\n };\n _this.gestureZoomStart = 0;\n _this.gestureRotationStart = 0;\n _this.isTouching = false;\n _this.lastPinchDistance = 0;\n _this.lastPinchRotation = 0;\n _this.rafDragTimeout = null;\n _this.rafPinchTimeout = null;\n _this.wheelTimer = null;\n _this.currentDoc = typeof document !== 'undefined' ? document : null;\n _this.currentWindow = typeof window !== 'undefined' ? window : null;\n _this.resizeObserver = null;\n _this.previousCropSize = null;\n _this.isInitialized = false;\n _this.state = {\n cropSize: null,\n hasWheelJustStarted: false,\n mediaObjectFit: undefined\n };\n _this.initResizeObserver = function () {\n if (typeof window.ResizeObserver === 'undefined' || !_this.containerRef) {\n return;\n }\n var isFirstResize = true;\n _this.resizeObserver = new window.ResizeObserver(function (entries) {\n if (isFirstResize) {\n isFirstResize = false; // observe() is called on mount, we don't want to trigger a recompute on mount\n return;\n }\n _this.computeSizes();\n });\n _this.resizeObserver.observe(_this.containerRef);\n };\n // this is to prevent Safari on iOS >= 10 to zoom the page\n _this.preventZoomSafari = function (e) {\n return e.preventDefault();\n };\n _this.cleanEvents = function () {\n if (!_this.currentDoc) return;\n _this.currentDoc.removeEventListener('mousemove', _this.onMouseMove);\n _this.currentDoc.removeEventListener('mouseup', _this.onDragStopped);\n _this.currentDoc.removeEventListener('touchmove', _this.onTouchMove);\n _this.currentDoc.removeEventListener('touchend', _this.onDragStopped);\n _this.currentDoc.removeEventListener('gesturechange', _this.onGestureChange);\n _this.currentDoc.removeEventListener('gestureend', _this.onGestureEnd);\n _this.currentDoc.removeEventListener('scroll', _this.onScroll);\n };\n _this.clearScrollEvent = function () {\n if (_this.containerRef) _this.containerRef.removeEventListener('wheel', _this.onWheel);\n if (_this.wheelTimer) {\n clearTimeout(_this.wheelTimer);\n }\n };\n _this.onMediaLoad = function () {\n var cropSize = _this.computeSizes();\n if (cropSize) {\n _this.previousCropSize = cropSize;\n _this.emitCropData();\n _this.setInitialCrop(cropSize);\n _this.isInitialized = true;\n }\n if (_this.props.onMediaLoaded) {\n _this.props.onMediaLoaded(_this.mediaSize);\n }\n };\n _this.setInitialCrop = function (cropSize) {\n if (_this.props.initialCroppedAreaPercentages) {\n var _a = getInitialCropFromCroppedAreaPercentages(_this.props.initialCroppedAreaPercentages, _this.mediaSize, _this.props.rotation, cropSize, _this.props.minZoom, _this.props.maxZoom),\n crop = _a.crop,\n zoom = _a.zoom;\n _this.props.onCropChange(crop);\n _this.props.onZoomChange && _this.props.onZoomChange(zoom);\n } else if (_this.props.initialCroppedAreaPixels) {\n var _b = getInitialCropFromCroppedAreaPixels(_this.props.initialCroppedAreaPixels, _this.mediaSize, _this.props.rotation, cropSize, _this.props.minZoom, _this.props.maxZoom),\n crop = _b.crop,\n zoom = _b.zoom;\n _this.props.onCropChange(crop);\n _this.props.onZoomChange && _this.props.onZoomChange(zoom);\n }\n };\n _this.computeSizes = function () {\n var _a, _b, _c, _d, _e, _f;\n var mediaRef = _this.imageRef.current || _this.videoRef.current;\n if (mediaRef && _this.containerRef) {\n _this.containerRect = _this.containerRef.getBoundingClientRect();\n _this.saveContainerPosition();\n var containerAspect = _this.containerRect.width / _this.containerRect.height;\n var naturalWidth = ((_a = _this.imageRef.current) === null || _a === void 0 ? void 0 : _a.naturalWidth) || ((_b = _this.videoRef.current) === null || _b === void 0 ? void 0 : _b.videoWidth) || 0;\n var naturalHeight = ((_c = _this.imageRef.current) === null || _c === void 0 ? void 0 : _c.naturalHeight) || ((_d = _this.videoRef.current) === null || _d === void 0 ? void 0 : _d.videoHeight) || 0;\n var isMediaScaledDown = mediaRef.offsetWidth < naturalWidth || mediaRef.offsetHeight < naturalHeight;\n var mediaAspect = naturalWidth / naturalHeight;\n // We do not rely on the offsetWidth/offsetHeight if the media is scaled down\n // as the values they report are rounded. That will result in precision losses\n // when calculating zoom. We use the fact that the media is positionned relative\n // to the container. That allows us to use the container's dimensions\n // and natural aspect ratio of the media to calculate accurate media size.\n // However, for this to work, the container should not be rotated\n var renderedMediaSize = void 0;\n if (isMediaScaledDown) {\n switch (_this.state.mediaObjectFit) {\n default:\n case 'contain':\n renderedMediaSize = containerAspect > mediaAspect ? {\n width: _this.containerRect.height * mediaAspect,\n height: _this.containerRect.height\n } : {\n width: _this.containerRect.width,\n height: _this.containerRect.width / mediaAspect\n };\n break;\n case 'horizontal-cover':\n renderedMediaSize = {\n width: _this.containerRect.width,\n height: _this.containerRect.width / mediaAspect\n };\n break;\n case 'vertical-cover':\n renderedMediaSize = {\n width: _this.containerRect.height * mediaAspect,\n height: _this.containerRect.height\n };\n break;\n }\n } else {\n renderedMediaSize = {\n width: mediaRef.offsetWidth,\n height: mediaRef.offsetHeight\n };\n }\n _this.mediaSize = (0,tslib__WEBPACK_IMPORTED_MODULE_2__.__assign)((0,tslib__WEBPACK_IMPORTED_MODULE_2__.__assign)({}, renderedMediaSize), {\n naturalWidth: naturalWidth,\n naturalHeight: naturalHeight\n });\n // set media size in the parent\n if (_this.props.setMediaSize) {\n _this.props.setMediaSize(_this.mediaSize);\n }\n var cropSize = _this.props.cropSize ? _this.props.cropSize : getCropSize(_this.mediaSize.width, _this.mediaSize.height, _this.containerRect.width, _this.containerRect.height, _this.props.aspect, _this.props.rotation);\n if (((_e = _this.state.cropSize) === null || _e === void 0 ? void 0 : _e.height) !== cropSize.height || ((_f = _this.state.cropSize) === null || _f === void 0 ? void 0 : _f.width) !== cropSize.width) {\n _this.props.onCropSizeChange && _this.props.onCropSizeChange(cropSize);\n }\n _this.setState({\n cropSize: cropSize\n }, _this.recomputeCropPosition);\n // pass crop size to parent\n if (_this.props.setCropSize) {\n _this.props.setCropSize(cropSize);\n }\n return cropSize;\n }\n };\n _this.saveContainerPosition = function () {\n if (_this.containerRef) {\n var bounds = _this.containerRef.getBoundingClientRect();\n _this.containerPosition = {\n x: bounds.left,\n y: bounds.top\n };\n }\n };\n _this.onMouseDown = function (e) {\n if (!_this.currentDoc) return;\n e.preventDefault();\n _this.currentDoc.addEventListener('mousemove', _this.onMouseMove);\n _this.currentDoc.addEventListener('mouseup', _this.onDragStopped);\n _this.saveContainerPosition();\n _this.onDragStart(Cropper.getMousePoint(e));\n };\n _this.onMouseMove = function (e) {\n return _this.onDrag(Cropper.getMousePoint(e));\n };\n _this.onScroll = function (e) {\n if (!_this.currentDoc) return;\n e.preventDefault();\n _this.saveContainerPosition();\n };\n _this.onTouchStart = function (e) {\n if (!_this.currentDoc) return;\n _this.isTouching = true;\n if (_this.props.onTouchRequest && !_this.props.onTouchRequest(e)) {\n return;\n }\n _this.currentDoc.addEventListener('touchmove', _this.onTouchMove, {\n passive: false\n }); // iOS 11 now defaults to passive: true\n _this.currentDoc.addEventListener('touchend', _this.onDragStopped);\n _this.saveContainerPosition();\n if (e.touches.length === 2) {\n _this.onPinchStart(e);\n } else if (e.touches.length === 1) {\n _this.onDragStart(Cropper.getTouchPoint(e.touches[0]));\n }\n };\n _this.onTouchMove = function (e) {\n // Prevent whole page from scrolling on iOS.\n e.preventDefault();\n if (e.touches.length === 2) {\n _this.onPinchMove(e);\n } else if (e.touches.length === 1) {\n _this.onDrag(Cropper.getTouchPoint(e.touches[0]));\n }\n };\n _this.onGestureStart = function (e) {\n if (!_this.currentDoc) return;\n e.preventDefault();\n _this.currentDoc.addEventListener('gesturechange', _this.onGestureChange);\n _this.currentDoc.addEventListener('gestureend', _this.onGestureEnd);\n _this.gestureZoomStart = _this.props.zoom;\n _this.gestureRotationStart = _this.props.rotation;\n };\n _this.onGestureChange = function (e) {\n e.preventDefault();\n if (_this.isTouching) {\n // this is to avoid conflict between gesture and touch events\n return;\n }\n var point = Cropper.getMousePoint(e);\n var newZoom = _this.gestureZoomStart - 1 + e.scale;\n _this.setNewZoom(newZoom, point, {\n shouldUpdatePosition: true\n });\n if (_this.props.onRotationChange) {\n var newRotation = _this.gestureRotationStart + e.rotation;\n _this.props.onRotationChange(newRotation);\n }\n };\n _this.onGestureEnd = function (e) {\n _this.cleanEvents();\n };\n _this.onDragStart = function (_a) {\n var _b, _c;\n var x = _a.x,\n y = _a.y;\n _this.dragStartPosition = {\n x: x,\n y: y\n };\n _this.dragStartCrop = (0,tslib__WEBPACK_IMPORTED_MODULE_2__.__assign)({}, _this.props.crop);\n (_c = (_b = _this.props).onInteractionStart) === null || _c === void 0 ? void 0 : _c.call(_b);\n };\n _this.onDrag = function (_a) {\n var x = _a.x,\n y = _a.y;\n if (!_this.currentWindow) return;\n if (_this.rafDragTimeout) _this.currentWindow.cancelAnimationFrame(_this.rafDragTimeout);\n _this.rafDragTimeout = _this.currentWindow.requestAnimationFrame(function () {\n if (!_this.state.cropSize) return;\n if (x === undefined || y === undefined) return;\n var offsetX = x - _this.dragStartPosition.x;\n var offsetY = y - _this.dragStartPosition.y;\n var requestedPosition = {\n x: _this.dragStartCrop.x + offsetX,\n y: _this.dragStartCrop.y + offsetY\n };\n var newPosition = _this.props.restrictPosition ? restrictPosition(requestedPosition, _this.mediaSize, _this.state.cropSize, _this.props.zoom, _this.props.rotation) : requestedPosition;\n _this.props.onCropChange(newPosition);\n });\n };\n _this.onDragStopped = function () {\n var _a, _b;\n _this.isTouching = false;\n _this.cleanEvents();\n _this.emitCropData();\n (_b = (_a = _this.props).onInteractionEnd) === null || _b === void 0 ? void 0 : _b.call(_a);\n };\n _this.onWheel = function (e) {\n if (!_this.currentWindow) return;\n if (_this.props.onWheelRequest && !_this.props.onWheelRequest(e)) {\n return;\n }\n e.preventDefault();\n var point = Cropper.getMousePoint(e);\n var pixelY = normalize_wheel__WEBPACK_IMPORTED_MODULE_1__(e).pixelY;\n var newZoom = _this.props.zoom - pixelY * _this.props.zoomSpeed / 200;\n _this.setNewZoom(newZoom, point, {\n shouldUpdatePosition: true\n });\n if (!_this.state.hasWheelJustStarted) {\n _this.setState({\n hasWheelJustStarted: true\n }, function () {\n var _a, _b;\n return (_b = (_a = _this.props).onInteractionStart) === null || _b === void 0 ? void 0 : _b.call(_a);\n });\n }\n if (_this.wheelTimer) {\n clearTimeout(_this.wheelTimer);\n }\n _this.wheelTimer = _this.currentWindow.setTimeout(function () {\n return _this.setState({\n hasWheelJustStarted: false\n }, function () {\n var _a, _b;\n return (_b = (_a = _this.props).onInteractionEnd) === null || _b === void 0 ? void 0 : _b.call(_a);\n });\n }, 250);\n };\n _this.getPointOnContainer = function (_a, containerTopLeft) {\n var x = _a.x,\n y = _a.y;\n if (!_this.containerRect) {\n throw new Error('The Cropper is not mounted');\n }\n return {\n x: _this.containerRect.width / 2 - (x - containerTopLeft.x),\n y: _this.containerRect.height / 2 - (y - containerTopLeft.y)\n };\n };\n _this.getPointOnMedia = function (_a) {\n var x = _a.x,\n y = _a.y;\n var _b = _this.props,\n crop = _b.crop,\n zoom = _b.zoom;\n return {\n x: (x + crop.x) / zoom,\n y: (y + crop.y) / zoom\n };\n };\n _this.setNewZoom = function (zoom, point, _a) {\n var _b = _a === void 0 ? {} : _a,\n _c = _b.shouldUpdatePosition,\n shouldUpdatePosition = _c === void 0 ? true : _c;\n if (!_this.state.cropSize || !_this.props.onZoomChange) return;\n var newZoom = clamp(zoom, _this.props.minZoom, _this.props.maxZoom);\n if (shouldUpdatePosition) {\n var zoomPoint = _this.getPointOnContainer(point, _this.containerPosition);\n var zoomTarget = _this.getPointOnMedia(zoomPoint);\n var requestedPosition = {\n x: zoomTarget.x * newZoom - zoomPoint.x,\n y: zoomTarget.y * newZoom - zoomPoint.y\n };\n var newPosition = _this.props.restrictPosition ? restrictPosition(requestedPosition, _this.mediaSize, _this.state.cropSize, newZoom, _this.props.rotation) : requestedPosition;\n _this.props.onCropChange(newPosition);\n }\n _this.props.onZoomChange(newZoom);\n };\n _this.getCropData = function () {\n if (!_this.state.cropSize) {\n return null;\n }\n // this is to ensure the crop is correctly restricted after a zoom back (https://github.com/ValentinH/react-easy-crop/issues/6)\n var restrictedPosition = _this.props.restrictPosition ? restrictPosition(_this.props.crop, _this.mediaSize, _this.state.cropSize, _this.props.zoom, _this.props.rotation) : _this.props.crop;\n return computeCroppedArea(restrictedPosition, _this.mediaSize, _this.state.cropSize, _this.getAspect(), _this.props.zoom, _this.props.rotation, _this.props.restrictPosition);\n };\n _this.emitCropData = function () {\n var cropData = _this.getCropData();\n if (!cropData) return;\n var croppedAreaPercentages = cropData.croppedAreaPercentages,\n croppedAreaPixels = cropData.croppedAreaPixels;\n if (_this.props.onCropComplete) {\n _this.props.onCropComplete(croppedAreaPercentages, croppedAreaPixels);\n }\n if (_this.props.onCropAreaChange) {\n _this.props.onCropAreaChange(croppedAreaPercentages, croppedAreaPixels);\n }\n };\n _this.emitCropAreaChange = function () {\n var cropData = _this.getCropData();\n if (!cropData) return;\n var croppedAreaPercentages = cropData.croppedAreaPercentages,\n croppedAreaPixels = cropData.croppedAreaPixels;\n if (_this.props.onCropAreaChange) {\n _this.props.onCropAreaChange(croppedAreaPercentages, croppedAreaPixels);\n }\n };\n _this.recomputeCropPosition = function () {\n var _a, _b;\n if (!_this.state.cropSize) return;\n var adjustedCrop = _this.props.crop;\n // Only scale if we're initialized and this is a legitimate resize\n if (_this.isInitialized && ((_a = _this.previousCropSize) === null || _a === void 0 ? void 0 : _a.width) && ((_b = _this.previousCropSize) === null || _b === void 0 ? void 0 : _b.height)) {\n var sizeChanged = Math.abs(_this.previousCropSize.width - _this.state.cropSize.width) > 1e-6 || Math.abs(_this.previousCropSize.height - _this.state.cropSize.height) > 1e-6;\n if (sizeChanged) {\n var scaleX = _this.state.cropSize.width / _this.previousCropSize.width;\n var scaleY = _this.state.cropSize.height / _this.previousCropSize.height;\n adjustedCrop = {\n x: _this.props.crop.x * scaleX,\n y: _this.props.crop.y * scaleY\n };\n }\n }\n var newPosition = _this.props.restrictPosition ? restrictPosition(adjustedCrop, _this.mediaSize, _this.state.cropSize, _this.props.zoom, _this.props.rotation) : adjustedCrop;\n _this.previousCropSize = _this.state.cropSize;\n _this.props.onCropChange(newPosition);\n _this.emitCropData();\n };\n _this.onKeyDown = function (event) {\n var _a, _b;\n var _c = _this.props,\n crop = _c.crop,\n onCropChange = _c.onCropChange,\n keyboardStep = _c.keyboardStep,\n zoom = _c.zoom,\n rotation = _c.rotation;\n var step = keyboardStep;\n if (!_this.state.cropSize) return;\n // if the shift key is pressed, reduce the step to allow finer control\n if (event.shiftKey) {\n step *= 0.2;\n }\n var newCrop = (0,tslib__WEBPACK_IMPORTED_MODULE_2__.__assign)({}, crop);\n switch (event.key) {\n case 'ArrowUp':\n newCrop.y -= step;\n event.preventDefault();\n break;\n case 'ArrowDown':\n newCrop.y += step;\n event.preventDefault();\n break;\n case 'ArrowLeft':\n newCrop.x -= step;\n event.preventDefault();\n break;\n case 'ArrowRight':\n newCrop.x += step;\n event.preventDefault();\n break;\n default:\n return;\n }\n if (_this.props.restrictPosition) {\n newCrop = restrictPosition(newCrop, _this.mediaSize, _this.state.cropSize, zoom, rotation);\n }\n if (!event.repeat) {\n (_b = (_a = _this.props).onInteractionStart) === null || _b === void 0 ? void 0 : _b.call(_a);\n }\n onCropChange(newCrop);\n };\n _this.onKeyUp = function (event) {\n var _a, _b;\n switch (event.key) {\n case 'ArrowUp':\n case 'ArrowDown':\n case 'ArrowLeft':\n case 'ArrowRight':\n event.preventDefault();\n break;\n default:\n return;\n }\n _this.emitCropData();\n (_b = (_a = _this.props).onInteractionEnd) === null || _b === void 0 ? void 0 : _b.call(_a);\n };\n return _this;\n }\n Cropper.prototype.componentDidMount = function () {\n if (!this.currentDoc || !this.currentWindow) return;\n if (this.containerRef) {\n if (this.containerRef.ownerDocument) {\n this.currentDoc = this.containerRef.ownerDocument;\n }\n if (this.currentDoc.defaultView) {\n this.currentWindow = this.currentDoc.defaultView;\n }\n this.initResizeObserver();\n // only add window resize listener if ResizeObserver is not supported. Otherwise, it would be redundant\n if (typeof window.ResizeObserver === 'undefined') {\n this.currentWindow.addEventListener('resize', this.computeSizes);\n }\n this.props.zoomWithScroll && this.containerRef.addEventListener('wheel', this.onWheel, {\n passive: false\n });\n this.containerRef.addEventListener('gesturestart', this.onGestureStart);\n }\n this.currentDoc.addEventListener('scroll', this.onScroll);\n if (!this.props.disableAutomaticStylesInjection) {\n this.styleRef = this.currentDoc.createElement('style');\n this.styleRef.setAttribute('type', 'text/css');\n if (this.props.nonce) {\n this.styleRef.setAttribute('nonce', this.props.nonce);\n }\n this.styleRef.innerHTML = css_248z;\n this.currentDoc.head.appendChild(this.styleRef);\n }\n // when rendered via SSR, the image can already be loaded and its onLoad callback will never be called\n if (this.imageRef.current && this.imageRef.current.complete) {\n this.onMediaLoad();\n }\n // set image and video refs in the parent if the callbacks exist\n if (this.props.setImageRef) {\n this.props.setImageRef(this.imageRef);\n }\n if (this.props.setVideoRef) {\n this.props.setVideoRef(this.videoRef);\n }\n if (this.props.setCropperRef) {\n this.props.setCropperRef(this.cropperRef);\n }\n };\n Cropper.prototype.componentWillUnmount = function () {\n var _a, _b;\n if (!this.currentDoc || !this.currentWindow) return;\n if (typeof window.ResizeObserver === 'undefined') {\n this.currentWindow.removeEventListener('resize', this.computeSizes);\n }\n (_a = this.resizeObserver) === null || _a === void 0 ? void 0 : _a.disconnect();\n if (this.containerRef) {\n this.containerRef.removeEventListener('gesturestart', this.preventZoomSafari);\n }\n if (this.styleRef) {\n (_b = this.styleRef.parentNode) === null || _b === void 0 ? void 0 : _b.removeChild(this.styleRef);\n }\n this.cleanEvents();\n this.props.zoomWithScroll && this.clearScrollEvent();\n };\n Cropper.prototype.componentDidUpdate = function (prevProps) {\n var _a, _b, _c, _d, _e, _f, _g, _h, _j;\n if (prevProps.rotation !== this.props.rotation) {\n this.computeSizes();\n this.recomputeCropPosition();\n } else if (prevProps.aspect !== this.props.aspect) {\n this.computeSizes();\n } else if (prevProps.objectFit !== this.props.objectFit) {\n this.computeSizes();\n } else if (prevProps.zoom !== this.props.zoom) {\n this.recomputeCropPosition();\n } else if (((_a = prevProps.cropSize) === null || _a === void 0 ? void 0 : _a.height) !== ((_b = this.props.cropSize) === null || _b === void 0 ? void 0 : _b.height) || ((_c = prevProps.cropSize) === null || _c === void 0 ? void 0 : _c.width) !== ((_d = this.props.cropSize) === null || _d === void 0 ? void 0 : _d.width)) {\n this.computeSizes();\n } else if (((_e = prevProps.crop) === null || _e === void 0 ? void 0 : _e.x) !== ((_f = this.props.crop) === null || _f === void 0 ? void 0 : _f.x) || ((_g = prevProps.crop) === null || _g === void 0 ? void 0 : _g.y) !== ((_h = this.props.crop) === null || _h === void 0 ? void 0 : _h.y)) {\n this.emitCropAreaChange();\n }\n if (prevProps.zoomWithScroll !== this.props.zoomWithScroll && this.containerRef) {\n this.props.zoomWithScroll ? this.containerRef.addEventListener('wheel', this.onWheel, {\n passive: false\n }) : this.clearScrollEvent();\n }\n if (prevProps.video !== this.props.video) {\n (_j = this.videoRef.current) === null || _j === void 0 ? void 0 : _j.load();\n }\n var objectFit = this.getObjectFit();\n if (objectFit !== this.state.mediaObjectFit) {\n this.setState({\n mediaObjectFit: objectFit\n }, this.computeSizes);\n }\n };\n Cropper.prototype.getAspect = function () {\n var _a = this.props,\n cropSize = _a.cropSize,\n aspect = _a.aspect;\n if (cropSize) {\n return cropSize.width / cropSize.height;\n }\n return aspect;\n };\n Cropper.prototype.getObjectFit = function () {\n var _a, _b, _c, _d;\n if (this.props.objectFit === 'cover') {\n var mediaRef = this.imageRef.current || this.videoRef.current;\n if (mediaRef && this.containerRef) {\n this.containerRect = this.containerRef.getBoundingClientRect();\n var containerAspect = this.containerRect.width / this.containerRect.height;\n var naturalWidth = ((_a = this.imageRef.current) === null || _a === void 0 ? void 0 : _a.naturalWidth) || ((_b = this.videoRef.current) === null || _b === void 0 ? void 0 : _b.videoWidth) || 0;\n var naturalHeight = ((_c = this.imageRef.current) === null || _c === void 0 ? void 0 : _c.naturalHeight) || ((_d = this.videoRef.current) === null || _d === void 0 ? void 0 : _d.videoHeight) || 0;\n var mediaAspect = naturalWidth / naturalHeight;\n return mediaAspect < containerAspect ? 'horizontal-cover' : 'vertical-cover';\n }\n return 'horizontal-cover';\n }\n return this.props.objectFit;\n };\n Cropper.prototype.onPinchStart = function (e) {\n var pointA = Cropper.getTouchPoint(e.touches[0]);\n var pointB = Cropper.getTouchPoint(e.touches[1]);\n this.lastPinchDistance = getDistanceBetweenPoints(pointA, pointB);\n this.lastPinchRotation = getRotationBetweenPoints(pointA, pointB);\n this.onDragStart(getCenter(pointA, pointB));\n };\n Cropper.prototype.onPinchMove = function (e) {\n var _this = this;\n if (!this.currentDoc || !this.currentWindow) return;\n var pointA = Cropper.getTouchPoint(e.touches[0]);\n var pointB = Cropper.getTouchPoint(e.touches[1]);\n var center = getCenter(pointA, pointB);\n this.onDrag(center);\n if (this.rafPinchTimeout) this.currentWindow.cancelAnimationFrame(this.rafPinchTimeout);\n this.rafPinchTimeout = this.currentWindow.requestAnimationFrame(function () {\n var distance = getDistanceBetweenPoints(pointA, pointB);\n var newZoom = _this.props.zoom * (distance / _this.lastPinchDistance);\n _this.setNewZoom(newZoom, center, {\n shouldUpdatePosition: false\n });\n _this.lastPinchDistance = distance;\n var rotation = getRotationBetweenPoints(pointA, pointB);\n var newRotation = _this.props.rotation + (rotation - _this.lastPinchRotation);\n _this.props.onRotationChange && _this.props.onRotationChange(newRotation);\n _this.lastPinchRotation = rotation;\n });\n };\n Cropper.prototype.render = function () {\n var _this = this;\n var _a;\n var _b = this.props,\n image = _b.image,\n video = _b.video,\n mediaProps = _b.mediaProps,\n cropperProps = _b.cropperProps,\n transform = _b.transform,\n _c = _b.crop,\n x = _c.x,\n y = _c.y,\n rotation = _b.rotation,\n zoom = _b.zoom,\n cropShape = _b.cropShape,\n showGrid = _b.showGrid,\n roundCropAreaPixels = _b.roundCropAreaPixels,\n _d = _b.style,\n containerStyle = _d.containerStyle,\n cropAreaStyle = _d.cropAreaStyle,\n mediaStyle = _d.mediaStyle,\n _e = _b.classes,\n containerClassName = _e.containerClassName,\n cropAreaClassName = _e.cropAreaClassName,\n mediaClassName = _e.mediaClassName;\n var objectFit = (_a = this.state.mediaObjectFit) !== null && _a !== void 0 ? _a : this.getObjectFit();\n return react__WEBPACK_IMPORTED_MODULE_0__.createElement(\"div\", {\n onMouseDown: this.onMouseDown,\n onTouchStart: this.onTouchStart,\n ref: function ref(el) {\n return _this.containerRef = el;\n },\n \"data-testid\": \"container\",\n style: containerStyle,\n className: classNames('reactEasyCrop_Container', containerClassName)\n }, image ? react__WEBPACK_IMPORTED_MODULE_0__.createElement(\"img\", (0,tslib__WEBPACK_IMPORTED_MODULE_2__.__assign)({\n alt: \"\",\n className: classNames('reactEasyCrop_Image', objectFit === 'contain' && 'reactEasyCrop_Contain', objectFit === 'horizontal-cover' && 'reactEasyCrop_Cover_Horizontal', objectFit === 'vertical-cover' && 'reactEasyCrop_Cover_Vertical', mediaClassName)\n }, mediaProps, {\n src: image,\n ref: this.imageRef,\n style: (0,tslib__WEBPACK_IMPORTED_MODULE_2__.__assign)((0,tslib__WEBPACK_IMPORTED_MODULE_2__.__assign)({}, mediaStyle), {\n transform: transform || \"translate(\".concat(x, \"px, \").concat(y, \"px) rotate(\").concat(rotation, \"deg) scale(\").concat(zoom, \")\")\n }),\n onLoad: this.onMediaLoad\n })) : video && react__WEBPACK_IMPORTED_MODULE_0__.createElement(\"video\", (0,tslib__WEBPACK_IMPORTED_MODULE_2__.__assign)({\n autoPlay: true,\n playsInline: true,\n loop: true,\n muted: true,\n className: classNames('reactEasyCrop_Video', objectFit === 'contain' && 'reactEasyCrop_Contain', objectFit === 'horizontal-cover' && 'reactEasyCrop_Cover_Horizontal', objectFit === 'vertical-cover' && 'reactEasyCrop_Cover_Vertical', mediaClassName)\n }, mediaProps, {\n ref: this.videoRef,\n onLoadedMetadata: this.onMediaLoad,\n style: (0,tslib__WEBPACK_IMPORTED_MODULE_2__.__assign)((0,tslib__WEBPACK_IMPORTED_MODULE_2__.__assign)({}, mediaStyle), {\n transform: transform || \"translate(\".concat(x, \"px, \").concat(y, \"px) rotate(\").concat(rotation, \"deg) scale(\").concat(zoom, \")\")\n }),\n controls: false\n }), (Array.isArray(video) ? video : [{\n src: video\n }]).map(function (item) {\n return react__WEBPACK_IMPORTED_MODULE_0__.createElement(\"source\", (0,tslib__WEBPACK_IMPORTED_MODULE_2__.__assign)({\n key: item.src\n }, item));\n })), this.state.cropSize && react__WEBPACK_IMPORTED_MODULE_0__.createElement(\"div\", (0,tslib__WEBPACK_IMPORTED_MODULE_2__.__assign)({\n ref: this.cropperRef,\n style: (0,tslib__WEBPACK_IMPORTED_MODULE_2__.__assign)((0,tslib__WEBPACK_IMPORTED_MODULE_2__.__assign)({}, cropAreaStyle), {\n width: roundCropAreaPixels ? Math.round(this.state.cropSize.width) : this.state.cropSize.width,\n height: roundCropAreaPixels ? Math.round(this.state.cropSize.height) : this.state.cropSize.height\n }),\n tabIndex: 0,\n onKeyDown: this.onKeyDown,\n onKeyUp: this.onKeyUp,\n \"data-testid\": \"cropper\",\n className: classNames('reactEasyCrop_CropArea', cropShape === 'round' && 'reactEasyCrop_CropAreaRound', showGrid && 'reactEasyCrop_CropAreaGrid', cropAreaClassName)\n }, cropperProps)));\n };\n Cropper.defaultProps = {\n zoom: 1,\n rotation: 0,\n aspect: 4 / 3,\n maxZoom: MAX_ZOOM,\n minZoom: MIN_ZOOM,\n cropShape: 'rect',\n objectFit: 'contain',\n showGrid: true,\n style: {},\n classes: {},\n mediaProps: {},\n cropperProps: {},\n zoomSpeed: 1,\n restrictPosition: true,\n zoomWithScroll: true,\n keyboardStep: KEYBOARD_STEP\n };\n Cropper.getMousePoint = function (e) {\n return {\n x: Number(e.clientX),\n y: Number(e.clientY)\n };\n };\n Cropper.getTouchPoint = function (touch) {\n return {\n x: Number(touch.clientX),\n y: Number(touch.clientY)\n };\n };\n return Cropper;\n}(react__WEBPACK_IMPORTED_MODULE_0__.Component);\n\n\n//# sourceMappingURL=index.module.mjs.map\n//# sourceURL=[module]\n//# 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{ __assign, __extends } from 'tslib';\nimport * as React from 'react';\nimport normalizeWheel from 'normalize-wheel';\n\n/**\r\n * Compute the dimension of the crop area based on media size,\r\n * aspect ratio and optionally rotation\r\n */\nfunction getCropSize(mediaWidth, mediaHeight, containerWidth, containerHeight, aspect, rotation) {\n  if (rotation === void 0) {\n    rotation = 0;\n  }\n  var _a = rotateSize(mediaWidth, mediaHeight, rotation),\n    width = _a.width,\n    height = _a.height;\n  var fittingWidth = Math.min(width, containerWidth);\n  var fittingHeight = Math.min(height, containerHeight);\n  if (fittingWidth > fittingHeight * aspect) {\n    return {\n      width: fittingHeight * aspect,\n      height: fittingHeight\n    };\n  }\n  return {\n    width: fittingWidth,\n    height: fittingWidth / aspect\n  };\n}\n/**\r\n * Compute media zoom.\r\n * We fit the media into the container with \"max-width: 100%; max-height: 100%;\"\r\n */\nfunction getMediaZoom(mediaSize) {\n  // Take the axis with more pixels to improve accuracy\n  return mediaSize.width > mediaSize.height ? mediaSize.width / mediaSize.naturalWidth : mediaSize.height / mediaSize.naturalHeight;\n}\n/**\r\n * Ensure a new media position stays in the crop area.\r\n */\nfunction restrictPosition(position, mediaSize, cropSize, zoom, rotation) {\n  if (rotation === void 0) {\n    rotation = 0;\n  }\n  var _a = rotateSize(mediaSize.width, mediaSize.height, rotation),\n    width = _a.width,\n    height = _a.height;\n  return {\n    x: restrictPositionCoord(position.x, width, cropSize.width, zoom),\n    y: restrictPositionCoord(position.y, height, cropSize.height, zoom)\n  };\n}\nfunction restrictPositionCoord(position, mediaSize, cropSize, zoom) {\n  var maxPosition = mediaSize * zoom / 2 - cropSize / 2;\n  return clamp(position, -maxPosition, maxPosition);\n}\nfunction getDistanceBetweenPoints(pointA, pointB) {\n  return Math.sqrt(Math.pow(pointA.y - pointB.y, 2) + Math.pow(pointA.x - pointB.x, 2));\n}\nfunction getRotationBetweenPoints(pointA, pointB) {\n  return Math.atan2(pointB.y - pointA.y, pointB.x - pointA.x) * 180 / Math.PI;\n}\n/**\r\n * Compute the output cropped area of the media in percentages and pixels.\r\n * x/y are the top-left coordinates on the src media\r\n */\nfunction computeCroppedArea(crop, mediaSize, cropSize, aspect, zoom, rotation, restrictPosition) {\n  if (rotation === void 0) {\n    rotation = 0;\n  }\n  if (restrictPosition === void 0) {\n    restrictPosition = true;\n  }\n  // if the media is rotated by the user, we cannot limit the position anymore\n  // as it might need to be negative.\n  var limitAreaFn = restrictPosition ? limitArea : noOp;\n  var mediaBBoxSize = rotateSize(mediaSize.width, mediaSize.height, rotation);\n  var mediaNaturalBBoxSize = rotateSize(mediaSize.naturalWidth, mediaSize.naturalHeight, rotation);\n  // calculate the crop area in percentages\n  // in the rotated space\n  var croppedAreaPercentages = {\n    x: limitAreaFn(100, ((mediaBBoxSize.width - cropSize.width / zoom) / 2 - crop.x / zoom) / mediaBBoxSize.width * 100),\n    y: limitAreaFn(100, ((mediaBBoxSize.height - cropSize.height / zoom) / 2 - crop.y / zoom) / mediaBBoxSize.height * 100),\n    width: limitAreaFn(100, cropSize.width / mediaBBoxSize.width * 100 / zoom),\n    height: limitAreaFn(100, cropSize.height / mediaBBoxSize.height * 100 / zoom)\n  };\n  // we compute the pixels size naively\n  var widthInPixels = Math.round(limitAreaFn(mediaNaturalBBoxSize.width, croppedAreaPercentages.width * mediaNaturalBBoxSize.width / 100));\n  var heightInPixels = Math.round(limitAreaFn(mediaNaturalBBoxSize.height, croppedAreaPercentages.height * mediaNaturalBBoxSize.height / 100));\n  var isImgWiderThanHigh = mediaNaturalBBoxSize.width >= mediaNaturalBBoxSize.height * aspect;\n  // then we ensure the width and height exactly match the aspect (to avoid rounding approximations)\n  // if the media is wider than high, when zoom is 0, the crop height will be equals to image height\n  // thus we want to compute the width from the height and aspect for accuracy.\n  // Otherwise, we compute the height from width and aspect.\n  var sizePixels = isImgWiderThanHigh ? {\n    width: Math.round(heightInPixels * aspect),\n    height: heightInPixels\n  } : {\n    width: widthInPixels,\n    height: Math.round(widthInPixels / aspect)\n  };\n  var croppedAreaPixels = __assign(__assign({}, sizePixels), {\n    x: Math.round(limitAreaFn(mediaNaturalBBoxSize.width - sizePixels.width, croppedAreaPercentages.x * mediaNaturalBBoxSize.width / 100)),\n    y: Math.round(limitAreaFn(mediaNaturalBBoxSize.height - sizePixels.height, croppedAreaPercentages.y * mediaNaturalBBoxSize.height / 100))\n  });\n  return {\n    croppedAreaPercentages: croppedAreaPercentages,\n    croppedAreaPixels: croppedAreaPixels\n  };\n}\n/**\r\n * Ensure the returned value is between 0 and max\r\n */\nfunction limitArea(max, value) {\n  return Math.min(max, Math.max(0, value));\n}\nfunction noOp(_max, value) {\n  return value;\n}\n/**\r\n * Compute crop and zoom from the croppedAreaPercentages.\r\n */\nfunction getInitialCropFromCroppedAreaPercentages(croppedAreaPercentages, mediaSize, rotation, cropSize, minZoom, maxZoom) {\n  var mediaBBoxSize = rotateSize(mediaSize.width, mediaSize.height, rotation);\n  // This is the inverse process of computeCroppedArea\n  var zoom = clamp(cropSize.width / mediaBBoxSize.width * (100 / croppedAreaPercentages.width), minZoom, maxZoom);\n  var crop = {\n    x: zoom * mediaBBoxSize.width / 2 - cropSize.width / 2 - mediaBBoxSize.width * zoom * (croppedAreaPercentages.x / 100),\n    y: zoom * mediaBBoxSize.height / 2 - cropSize.height / 2 - mediaBBoxSize.height * zoom * (croppedAreaPercentages.y / 100)\n  };\n  return {\n    crop: crop,\n    zoom: zoom\n  };\n}\n/**\r\n * Compute zoom from the croppedAreaPixels\r\n */\nfunction getZoomFromCroppedAreaPixels(croppedAreaPixels, mediaSize, cropSize) {\n  var mediaZoom = getMediaZoom(mediaSize);\n  return cropSize.height > cropSize.width ? cropSize.height / (croppedAreaPixels.height * mediaZoom) : cropSize.width / (croppedAreaPixels.width * mediaZoom);\n}\n/**\r\n * Compute crop and zoom from the croppedAreaPixels\r\n */\nfunction getInitialCropFromCroppedAreaPixels(croppedAreaPixels, mediaSize, rotation, cropSize, minZoom, maxZoom) {\n  if (rotation === void 0) {\n    rotation = 0;\n  }\n  var mediaNaturalBBoxSize = rotateSize(mediaSize.naturalWidth, mediaSize.naturalHeight, rotation);\n  var zoom = clamp(getZoomFromCroppedAreaPixels(croppedAreaPixels, mediaSize, cropSize), minZoom, maxZoom);\n  var cropZoom = cropSize.height > cropSize.width ? cropSize.height / croppedAreaPixels.height : cropSize.width / croppedAreaPixels.width;\n  var crop = {\n    x: ((mediaNaturalBBoxSize.width - croppedAreaPixels.width) / 2 - croppedAreaPixels.x) * cropZoom,\n    y: ((mediaNaturalBBoxSize.height - croppedAreaPixels.height) / 2 - croppedAreaPixels.y) * cropZoom\n  };\n  return {\n    crop: crop,\n    zoom: zoom\n  };\n}\n/**\r\n * Return the point that is the center of point a and b\r\n */\nfunction getCenter(a, b) {\n  return {\n    x: (b.x + a.x) / 2,\n    y: (b.y + a.y) / 2\n  };\n}\nfunction getRadianAngle(degreeValue) {\n  return degreeValue * Math.PI / 180;\n}\n/**\r\n * Returns the new bounding area of a rotated rectangle.\r\n */\nfunction rotateSize(width, height, rotation) {\n  var rotRad = getRadianAngle(rotation);\n  return {\n    width: Math.abs(Math.cos(rotRad) * width) + Math.abs(Math.sin(rotRad) * height),\n    height: Math.abs(Math.sin(rotRad) * width) + Math.abs(Math.cos(rotRad) * height)\n  };\n}\n/**\r\n * Clamp value between min and max\r\n */\nfunction clamp(value, min, max) {\n  return Math.min(Math.max(value, min), max);\n}\n/**\r\n * Combine multiple class names into a single string.\r\n */\nfunction classNames() {\n  var args = [];\n  for (var _i = 0; _i < arguments.length; _i++) {\n    args[_i] = arguments[_i];\n  }\n  return args.filter(function (value) {\n    if (typeof value === 'string' && value.length > 0) {\n      return true;\n    }\n    return false;\n  }).join(' ').trim();\n}\n\nvar css_248z = \".reactEasyCrop_Container {\\n  position: absolute;\\n  top: 0;\\n  left: 0;\\n  right: 0;\\n  bottom: 0;\\n  overflow: hidden;\\n  user-select: none;\\n  touch-action: none;\\n  cursor: move;\\n  display: flex;\\n  justify-content: center;\\n  align-items: center;\\n}\\n\\n.reactEasyCrop_Image,\\n.reactEasyCrop_Video {\\n  will-change: transform; /* this improves performances and prevent painting issues on iOS Chrome */\\n}\\n\\n.reactEasyCrop_Contain {\\n  max-width: 100%;\\n  max-height: 100%;\\n  margin: auto;\\n  position: absolute;\\n  top: 0;\\n  bottom: 0;\\n  left: 0;\\n  right: 0;\\n}\\n.reactEasyCrop_Cover_Horizontal {\\n  width: 100%;\\n  height: auto;\\n}\\n.reactEasyCrop_Cover_Vertical {\\n  width: auto;\\n  height: 100%;\\n}\\n\\n.reactEasyCrop_CropArea {\\n  position: absolute;\\n  left: 50%;\\n  top: 50%;\\n  transform: translate(-50%, -50%);\\n  border: 1px solid rgba(255, 255, 255, 0.5);\\n  box-sizing: border-box;\\n  box-shadow: 0 0 0 9999em;\\n  color: rgba(0, 0, 0, 0.5);\\n  overflow: hidden;\\n}\\n\\n.reactEasyCrop_CropAreaRound {\\n  border-radius: 50%;\\n}\\n\\n.reactEasyCrop_CropAreaGrid::before {\\n  content: ' ';\\n  box-sizing: border-box;\\n  position: absolute;\\n  border: 1px solid rgba(255, 255, 255, 0.5);\\n  top: 0;\\n  bottom: 0;\\n  left: 33.33%;\\n  right: 33.33%;\\n  border-top: 0;\\n  border-bottom: 0;\\n}\\n\\n.reactEasyCrop_CropAreaGrid::after {\\n  content: ' ';\\n  box-sizing: border-box;\\n  position: absolute;\\n  border: 1px solid rgba(255, 255, 255, 0.5);\\n  top: 33.33%;\\n  bottom: 33.33%;\\n  left: 0;\\n  right: 0;\\n  border-left: 0;\\n  border-right: 0;\\n}\\n\";\n\nvar MIN_ZOOM = 1;\nvar MAX_ZOOM = 3;\nvar KEYBOARD_STEP = 1;\nvar Cropper = /** @class */function (_super) {\n  __extends(Cropper, _super);\n  function Cropper() {\n    var _this = _super !== null && _super.apply(this, arguments) || this;\n    _this.cropperRef = React.createRef();\n    _this.imageRef = React.createRef();\n    _this.videoRef = React.createRef();\n    _this.containerPosition = {\n      x: 0,\n      y: 0\n    };\n    _this.containerRef = null;\n    _this.styleRef = null;\n    _this.containerRect = null;\n    _this.mediaSize = {\n      width: 0,\n      height: 0,\n      naturalWidth: 0,\n      naturalHeight: 0\n    };\n    _this.dragStartPosition = {\n      x: 0,\n      y: 0\n    };\n    _this.dragStartCrop = {\n      x: 0,\n      y: 0\n    };\n    _this.gestureZoomStart = 0;\n    _this.gestureRotationStart = 0;\n    _this.isTouching = false;\n    _this.lastPinchDistance = 0;\n    _this.lastPinchRotation = 0;\n    _this.rafDragTimeout = null;\n    _this.rafPinchTimeout = null;\n    _this.wheelTimer = null;\n    _this.currentDoc = typeof document !== 'undefined' ? document : null;\n    _this.currentWindow = typeof window !== 'undefined' ? window : null;\n    _this.resizeObserver = null;\n    _this.previousCropSize = null;\n    _this.isInitialized = false;\n    _this.state = {\n      cropSize: null,\n      hasWheelJustStarted: false,\n      mediaObjectFit: undefined\n    };\n    _this.initResizeObserver = function () {\n      if (typeof window.ResizeObserver === 'undefined' || !_this.containerRef) {\n        return;\n      }\n      var isFirstResize = true;\n      _this.resizeObserver = new window.ResizeObserver(function (entries) {\n        if (isFirstResize) {\n          isFirstResize = false; // observe() is called on mount, we don't want to trigger a recompute on mount\n          return;\n        }\n        _this.computeSizes();\n      });\n      _this.resizeObserver.observe(_this.containerRef);\n    };\n    // this is to prevent Safari on iOS >= 10 to zoom the page\n    _this.preventZoomSafari = function (e) {\n      return e.preventDefault();\n    };\n    _this.cleanEvents = function () {\n      if (!_this.currentDoc) return;\n      _this.currentDoc.removeEventListener('mousemove', _this.onMouseMove);\n      _this.currentDoc.removeEventListener('mouseup', _this.onDragStopped);\n      _this.currentDoc.removeEventListener('touchmove', _this.onTouchMove);\n      _this.currentDoc.removeEventListener('touchend', _this.onDragStopped);\n      _this.currentDoc.removeEventListener('gesturechange', _this.onGestureChange);\n      _this.currentDoc.removeEventListener('gestureend', _this.onGestureEnd);\n      _this.currentDoc.removeEventListener('scroll', _this.onScroll);\n    };\n    _this.clearScrollEvent = function () {\n      if (_this.containerRef) _this.containerRef.removeEventListener('wheel', _this.onWheel);\n      if (_this.wheelTimer) {\n        clearTimeout(_this.wheelTimer);\n      }\n    };\n    _this.onMediaLoad = function () {\n      var cropSize = _this.computeSizes();\n      if (cropSize) {\n        _this.previousCropSize = cropSize;\n        _this.emitCropData();\n        _this.setInitialCrop(cropSize);\n        _this.isInitialized = true;\n      }\n      if (_this.props.onMediaLoaded) {\n        _this.props.onMediaLoaded(_this.mediaSize);\n      }\n    };\n    _this.setInitialCrop = function (cropSize) {\n      if (_this.props.initialCroppedAreaPercentages) {\n        var _a = getInitialCropFromCroppedAreaPercentages(_this.props.initialCroppedAreaPercentages, _this.mediaSize, _this.props.rotation, cropSize, _this.props.minZoom, _this.props.maxZoom),\n          crop = _a.crop,\n          zoom = _a.zoom;\n        _this.props.onCropChange(crop);\n        _this.props.onZoomChange && _this.props.onZoomChange(zoom);\n      } else if (_this.props.initialCroppedAreaPixels) {\n        var _b = getInitialCropFromCroppedAreaPixels(_this.props.initialCroppedAreaPixels, _this.mediaSize, _this.props.rotation, cropSize, _this.props.minZoom, _this.props.maxZoom),\n          crop = _b.crop,\n          zoom = _b.zoom;\n        _this.props.onCropChange(crop);\n        _this.props.onZoomChange && _this.props.onZoomChange(zoom);\n      }\n    };\n    _this.computeSizes = function () {\n      var _a, _b, _c, _d, _e, _f;\n      var mediaRef = _this.imageRef.current || _this.videoRef.current;\n      if (mediaRef && _this.containerRef) {\n        _this.containerRect = _this.containerRef.getBoundingClientRect();\n        _this.saveContainerPosition();\n        var containerAspect = _this.containerRect.width / _this.containerRect.height;\n        var naturalWidth = ((_a = _this.imageRef.current) === null || _a === void 0 ? void 0 : _a.naturalWidth) || ((_b = _this.videoRef.current) === null || _b === void 0 ? void 0 : _b.videoWidth) || 0;\n        var naturalHeight = ((_c = _this.imageRef.current) === null || _c === void 0 ? void 0 : _c.naturalHeight) || ((_d = _this.videoRef.current) === null || _d === void 0 ? void 0 : _d.videoHeight) || 0;\n        var isMediaScaledDown = mediaRef.offsetWidth < naturalWidth || mediaRef.offsetHeight < naturalHeight;\n        var mediaAspect = naturalWidth / naturalHeight;\n        // We do not rely on the offsetWidth/offsetHeight if the media is scaled down\n        // as the values they report are rounded. That will result in precision losses\n        // when calculating zoom. We use the fact that the media is positionned relative\n        // to the container. That allows us to use the container's dimensions\n        // and natural aspect ratio of the media to calculate accurate media size.\n        // However, for this to work, the container should not be rotated\n        var renderedMediaSize = void 0;\n        if (isMediaScaledDown) {\n          switch (_this.state.mediaObjectFit) {\n            default:\n            case 'contain':\n              renderedMediaSize = containerAspect > mediaAspect ? {\n                width: _this.containerRect.height * mediaAspect,\n                height: _this.containerRect.height\n              } : {\n                width: _this.containerRect.width,\n                height: _this.containerRect.width / mediaAspect\n              };\n              break;\n            case 'horizontal-cover':\n              renderedMediaSize = {\n                width: _this.containerRect.width,\n                height: _this.containerRect.width / mediaAspect\n              };\n              break;\n            case 'vertical-cover':\n              renderedMediaSize = {\n                width: _this.containerRect.height * mediaAspect,\n                height: _this.containerRect.height\n              };\n              break;\n          }\n        } else {\n          renderedMediaSize = {\n            width: mediaRef.offsetWidth,\n            height: mediaRef.offsetHeight\n          };\n        }\n        _this.mediaSize = __assign(__assign({}, renderedMediaSize), {\n          naturalWidth: naturalWidth,\n          naturalHeight: naturalHeight\n        });\n        // set media size in the parent\n        if (_this.props.setMediaSize) {\n          _this.props.setMediaSize(_this.mediaSize);\n        }\n        var cropSize = _this.props.cropSize ? _this.props.cropSize : getCropSize(_this.mediaSize.width, _this.mediaSize.height, _this.containerRect.width, _this.containerRect.height, _this.props.aspect, _this.props.rotation);\n        if (((_e = _this.state.cropSize) === null || _e === void 0 ? void 0 : _e.height) !== cropSize.height || ((_f = _this.state.cropSize) === null || _f === void 0 ? void 0 : _f.width) !== cropSize.width) {\n          _this.props.onCropSizeChange && _this.props.onCropSizeChange(cropSize);\n        }\n        _this.setState({\n          cropSize: cropSize\n        }, _this.recomputeCropPosition);\n        // pass crop size to parent\n        if (_this.props.setCropSize) {\n          _this.props.setCropSize(cropSize);\n        }\n        return cropSize;\n      }\n    };\n    _this.saveContainerPosition = function () {\n      if (_this.containerRef) {\n        var bounds = _this.containerRef.getBoundingClientRect();\n        _this.containerPosition = {\n          x: bounds.left,\n          y: bounds.top\n        };\n      }\n    };\n    _this.onMouseDown = function (e) {\n      if (!_this.currentDoc) return;\n      e.preventDefault();\n      _this.currentDoc.addEventListener('mousemove', _this.onMouseMove);\n      _this.currentDoc.addEventListener('mouseup', _this.onDragStopped);\n      _this.saveContainerPosition();\n      _this.onDragStart(Cropper.getMousePoint(e));\n    };\n    _this.onMouseMove = function (e) {\n      return _this.onDrag(Cropper.getMousePoint(e));\n    };\n    _this.onScroll = function (e) {\n      if (!_this.currentDoc) return;\n      e.preventDefault();\n      _this.saveContainerPosition();\n    };\n    _this.onTouchStart = function (e) {\n      if (!_this.currentDoc) return;\n      _this.isTouching = true;\n      if (_this.props.onTouchRequest && !_this.props.onTouchRequest(e)) {\n        return;\n      }\n      _this.currentDoc.addEventListener('touchmove', _this.onTouchMove, {\n        passive: false\n      }); // iOS 11 now defaults to passive: true\n      _this.currentDoc.addEventListener('touchend', _this.onDragStopped);\n      _this.saveContainerPosition();\n      if (e.touches.length === 2) {\n        _this.onPinchStart(e);\n      } else if (e.touches.length === 1) {\n        _this.onDragStart(Cropper.getTouchPoint(e.touches[0]));\n      }\n    };\n    _this.onTouchMove = function (e) {\n      // Prevent whole page from scrolling on iOS.\n      e.preventDefault();\n      if (e.touches.length === 2) {\n        _this.onPinchMove(e);\n      } else if (e.touches.length === 1) {\n        _this.onDrag(Cropper.getTouchPoint(e.touches[0]));\n      }\n    };\n    _this.onGestureStart = function (e) {\n      if (!_this.currentDoc) return;\n      e.preventDefault();\n      _this.currentDoc.addEventListener('gesturechange', _this.onGestureChange);\n      _this.currentDoc.addEventListener('gestureend', _this.onGestureEnd);\n      _this.gestureZoomStart = _this.props.zoom;\n      _this.gestureRotationStart = _this.props.rotation;\n    };\n    _this.onGestureChange = function (e) {\n      e.preventDefault();\n      if (_this.isTouching) {\n        // this is to avoid conflict between gesture and touch events\n        return;\n      }\n      var point = Cropper.getMousePoint(e);\n      var newZoom = _this.gestureZoomStart - 1 + e.scale;\n      _this.setNewZoom(newZoom, point, {\n        shouldUpdatePosition: true\n      });\n      if (_this.props.onRotationChange) {\n        var newRotation = _this.gestureRotationStart + e.rotation;\n        _this.props.onRotationChange(newRotation);\n      }\n    };\n    _this.onGestureEnd = function (e) {\n      _this.cleanEvents();\n    };\n    _this.onDragStart = function (_a) {\n      var _b, _c;\n      var x = _a.x,\n        y = _a.y;\n      _this.dragStartPosition = {\n        x: x,\n        y: y\n      };\n      _this.dragStartCrop = __assign({}, _this.props.crop);\n      (_c = (_b = _this.props).onInteractionStart) === null || _c === void 0 ? void 0 : _c.call(_b);\n    };\n    _this.onDrag = function (_a) {\n      var x = _a.x,\n        y = _a.y;\n      if (!_this.currentWindow) return;\n      if (_this.rafDragTimeout) _this.currentWindow.cancelAnimationFrame(_this.rafDragTimeout);\n      _this.rafDragTimeout = _this.currentWindow.requestAnimationFrame(function () {\n        if (!_this.state.cropSize) return;\n        if (x === undefined || y === undefined) return;\n        var offsetX = x - _this.dragStartPosition.x;\n        var offsetY = y - _this.dragStartPosition.y;\n        var requestedPosition = {\n          x: _this.dragStartCrop.x + offsetX,\n          y: _this.dragStartCrop.y + offsetY\n        };\n        var newPosition = _this.props.restrictPosition ? restrictPosition(requestedPosition, _this.mediaSize, _this.state.cropSize, _this.props.zoom, _this.props.rotation) : requestedPosition;\n        _this.props.onCropChange(newPosition);\n      });\n    };\n    _this.onDragStopped = function () {\n      var _a, _b;\n      _this.isTouching = false;\n      _this.cleanEvents();\n      _this.emitCropData();\n      (_b = (_a = _this.props).onInteractionEnd) === null || _b === void 0 ? void 0 : _b.call(_a);\n    };\n    _this.onWheel = function (e) {\n      if (!_this.currentWindow) return;\n      if (_this.props.onWheelRequest && !_this.props.onWheelRequest(e)) {\n        return;\n      }\n      e.preventDefault();\n      var point = Cropper.getMousePoint(e);\n      var pixelY = normalizeWheel(e).pixelY;\n      var newZoom = _this.props.zoom - pixelY * _this.props.zoomSpeed / 200;\n      _this.setNewZoom(newZoom, point, {\n        shouldUpdatePosition: true\n      });\n      if (!_this.state.hasWheelJustStarted) {\n        _this.setState({\n          hasWheelJustStarted: true\n        }, function () {\n          var _a, _b;\n          return (_b = (_a = _this.props).onInteractionStart) === null || _b === void 0 ? void 0 : _b.call(_a);\n        });\n      }\n      if (_this.wheelTimer) {\n        clearTimeout(_this.wheelTimer);\n      }\n      _this.wheelTimer = _this.currentWindow.setTimeout(function () {\n        return _this.setState({\n          hasWheelJustStarted: false\n        }, function () {\n          var _a, _b;\n          return (_b = (_a = _this.props).onInteractionEnd) === null || _b === void 0 ? void 0 : _b.call(_a);\n        });\n      }, 250);\n    };\n    _this.getPointOnContainer = function (_a, containerTopLeft) {\n      var x = _a.x,\n        y = _a.y;\n      if (!_this.containerRect) {\n        throw new Error('The Cropper is not mounted');\n      }\n      return {\n        x: _this.containerRect.width / 2 - (x - containerTopLeft.x),\n        y: _this.containerRect.height / 2 - (y - containerTopLeft.y)\n      };\n    };\n    _this.getPointOnMedia = function (_a) {\n      var x = _a.x,\n        y = _a.y;\n      var _b = _this.props,\n        crop = _b.crop,\n        zoom = _b.zoom;\n      return {\n        x: (x + crop.x) / zoom,\n        y: (y + crop.y) / zoom\n      };\n    };\n    _this.setNewZoom = function (zoom, point, _a) {\n      var _b = _a === void 0 ? {} : _a,\n        _c = _b.shouldUpdatePosition,\n        shouldUpdatePosition = _c === void 0 ? true : _c;\n      if (!_this.state.cropSize || !_this.props.onZoomChange) return;\n      var newZoom = clamp(zoom, _this.props.minZoom, _this.props.maxZoom);\n      if (shouldUpdatePosition) {\n        var zoomPoint = _this.getPointOnContainer(point, _this.containerPosition);\n        var zoomTarget = _this.getPointOnMedia(zoomPoint);\n        var requestedPosition = {\n          x: zoomTarget.x * newZoom - zoomPoint.x,\n          y: zoomTarget.y * newZoom - zoomPoint.y\n        };\n        var newPosition = _this.props.restrictPosition ? restrictPosition(requestedPosition, _this.mediaSize, _this.state.cropSize, newZoom, _this.props.rotation) : requestedPosition;\n        _this.props.onCropChange(newPosition);\n      }\n      _this.props.onZoomChange(newZoom);\n    };\n    _this.getCropData = function () {\n      if (!_this.state.cropSize) {\n        return null;\n      }\n      // this is to ensure the crop is correctly restricted after a zoom back (https://github.com/ValentinH/react-easy-crop/issues/6)\n      var restrictedPosition = _this.props.restrictPosition ? restrictPosition(_this.props.crop, _this.mediaSize, _this.state.cropSize, _this.props.zoom, _this.props.rotation) : _this.props.crop;\n      return computeCroppedArea(restrictedPosition, _this.mediaSize, _this.state.cropSize, _this.getAspect(), _this.props.zoom, _this.props.rotation, _this.props.restrictPosition);\n    };\n    _this.emitCropData = function () {\n      var cropData = _this.getCropData();\n      if (!cropData) return;\n      var croppedAreaPercentages = cropData.croppedAreaPercentages,\n        croppedAreaPixels = cropData.croppedAreaPixels;\n      if (_this.props.onCropComplete) {\n        _this.props.onCropComplete(croppedAreaPercentages, croppedAreaPixels);\n      }\n      if (_this.props.onCropAreaChange) {\n        _this.props.onCropAreaChange(croppedAreaPercentages, croppedAreaPixels);\n      }\n    };\n    _this.emitCropAreaChange = function () {\n      var cropData = _this.getCropData();\n      if (!cropData) return;\n      var croppedAreaPercentages = cropData.croppedAreaPercentages,\n        croppedAreaPixels = cropData.croppedAreaPixels;\n      if (_this.props.onCropAreaChange) {\n        _this.props.onCropAreaChange(croppedAreaPercentages, croppedAreaPixels);\n      }\n    };\n    _this.recomputeCropPosition = function () {\n      var _a, _b;\n      if (!_this.state.cropSize) return;\n      var adjustedCrop = _this.props.crop;\n      // Only scale if we're initialized and this is a legitimate resize\n      if (_this.isInitialized && ((_a = _this.previousCropSize) === null || _a === void 0 ? void 0 : _a.width) && ((_b = _this.previousCropSize) === null || _b === void 0 ? void 0 : _b.height)) {\n        var sizeChanged = Math.abs(_this.previousCropSize.width - _this.state.cropSize.width) > 1e-6 || Math.abs(_this.previousCropSize.height - _this.state.cropSize.height) > 1e-6;\n        if (sizeChanged) {\n          var scaleX = _this.state.cropSize.width / _this.previousCropSize.width;\n          var scaleY = _this.state.cropSize.height / _this.previousCropSize.height;\n          adjustedCrop = {\n            x: _this.props.crop.x * scaleX,\n            y: _this.props.crop.y * scaleY\n          };\n        }\n      }\n      var newPosition = _this.props.restrictPosition ? restrictPosition(adjustedCrop, _this.mediaSize, _this.state.cropSize, _this.props.zoom, _this.props.rotation) : adjustedCrop;\n      _this.previousCropSize = _this.state.cropSize;\n      _this.props.onCropChange(newPosition);\n      _this.emitCropData();\n    };\n    _this.onKeyDown = function (event) {\n      var _a, _b;\n      var _c = _this.props,\n        crop = _c.crop,\n        onCropChange = _c.onCropChange,\n        keyboardStep = _c.keyboardStep,\n        zoom = _c.zoom,\n        rotation = _c.rotation;\n      var step = keyboardStep;\n      if (!_this.state.cropSize) return;\n      // if the shift key is pressed, reduce the step to allow finer control\n      if (event.shiftKey) {\n        step *= 0.2;\n      }\n      var newCrop = __assign({}, crop);\n      switch (event.key) {\n        case 'ArrowUp':\n          newCrop.y -= step;\n          event.preventDefault();\n          break;\n        case 'ArrowDown':\n          newCrop.y += step;\n          event.preventDefault();\n          break;\n        case 'ArrowLeft':\n          newCrop.x -= step;\n          event.preventDefault();\n          break;\n        case 'ArrowRight':\n          newCrop.x += step;\n          event.preventDefault();\n          break;\n        default:\n          return;\n      }\n      if (_this.props.restrictPosition) {\n        newCrop = restrictPosition(newCrop, _this.mediaSize, _this.state.cropSize, zoom, rotation);\n      }\n      if (!event.repeat) {\n        (_b = (_a = _this.props).onInteractionStart) === null || _b === void 0 ? void 0 : _b.call(_a);\n      }\n      onCropChange(newCrop);\n    };\n    _this.onKeyUp = function (event) {\n      var _a, _b;\n      switch (event.key) {\n        case 'ArrowUp':\n        case 'ArrowDown':\n        case 'ArrowLeft':\n        case 'ArrowRight':\n          event.preventDefault();\n          break;\n        default:\n          return;\n      }\n      _this.emitCropData();\n      (_b = (_a = _this.props).onInteractionEnd) === null || _b === void 0 ? void 0 : _b.call(_a);\n    };\n    return _this;\n  }\n  Cropper.prototype.componentDidMount = function () {\n    if (!this.currentDoc || !this.currentWindow) return;\n    if (this.containerRef) {\n      if (this.containerRef.ownerDocument) {\n        this.currentDoc = this.containerRef.ownerDocument;\n      }\n      if (this.currentDoc.defaultView) {\n        this.currentWindow = this.currentDoc.defaultView;\n      }\n      this.initResizeObserver();\n      // only add window resize listener if ResizeObserver is not supported. Otherwise, it would be redundant\n      if (typeof window.ResizeObserver === 'undefined') {\n        this.currentWindow.addEventListener('resize', this.computeSizes);\n      }\n      this.props.zoomWithScroll && this.containerRef.addEventListener('wheel', this.onWheel, {\n        passive: false\n      });\n      this.containerRef.addEventListener('gesturestart', this.onGestureStart);\n    }\n    this.currentDoc.addEventListener('scroll', this.onScroll);\n    if (!this.props.disableAutomaticStylesInjection) {\n      this.styleRef = this.currentDoc.createElement('style');\n      this.styleRef.setAttribute('type', 'text/css');\n      if (this.props.nonce) {\n        this.styleRef.setAttribute('nonce', this.props.nonce);\n      }\n      this.styleRef.innerHTML = css_248z;\n      this.currentDoc.head.appendChild(this.styleRef);\n    }\n    // when rendered via SSR, the image can already be loaded and its onLoad callback will never be called\n    if (this.imageRef.current && this.imageRef.current.complete) {\n      this.onMediaLoad();\n    }\n    // set image and video refs in the parent if the callbacks exist\n    if (this.props.setImageRef) {\n      this.props.setImageRef(this.imageRef);\n    }\n    if (this.props.setVideoRef) {\n      this.props.setVideoRef(this.videoRef);\n    }\n    if (this.props.setCropperRef) {\n      this.props.setCropperRef(this.cropperRef);\n    }\n  };\n  Cropper.prototype.componentWillUnmount = function () {\n    var _a, _b;\n    if (!this.currentDoc || !this.currentWindow) return;\n    if (typeof window.ResizeObserver === 'undefined') {\n      this.currentWindow.removeEventListener('resize', this.computeSizes);\n    }\n    (_a = this.resizeObserver) === null || _a === void 0 ? void 0 : _a.disconnect();\n    if (this.containerRef) {\n      this.containerRef.removeEventListener('gesturestart', this.preventZoomSafari);\n    }\n    if (this.styleRef) {\n      (_b = this.styleRef.parentNode) === null || _b === void 0 ? void 0 : _b.removeChild(this.styleRef);\n    }\n    this.cleanEvents();\n    this.props.zoomWithScroll && this.clearScrollEvent();\n  };\n  Cropper.prototype.componentDidUpdate = function (prevProps) {\n    var _a, _b, _c, _d, _e, _f, _g, _h, _j;\n    if (prevProps.rotation !== this.props.rotation) {\n      this.computeSizes();\n      this.recomputeCropPosition();\n    } else if (prevProps.aspect !== this.props.aspect) {\n      this.computeSizes();\n    } else if (prevProps.objectFit !== this.props.objectFit) {\n      this.computeSizes();\n    } else if (prevProps.zoom !== this.props.zoom) {\n      this.recomputeCropPosition();\n    } else if (((_a = prevProps.cropSize) === null || _a === void 0 ? void 0 : _a.height) !== ((_b = this.props.cropSize) === null || _b === void 0 ? void 0 : _b.height) || ((_c = prevProps.cropSize) === null || _c === void 0 ? void 0 : _c.width) !== ((_d = this.props.cropSize) === null || _d === void 0 ? void 0 : _d.width)) {\n      this.computeSizes();\n    } else if (((_e = prevProps.crop) === null || _e === void 0 ? void 0 : _e.x) !== ((_f = this.props.crop) === null || _f === void 0 ? void 0 : _f.x) || ((_g = prevProps.crop) === null || _g === void 0 ? void 0 : _g.y) !== ((_h = this.props.crop) === null || _h === void 0 ? void 0 : _h.y)) {\n      this.emitCropAreaChange();\n    }\n    if (prevProps.zoomWithScroll !== this.props.zoomWithScroll && this.containerRef) {\n      this.props.zoomWithScroll ? this.containerRef.addEventListener('wheel', this.onWheel, {\n        passive: false\n      }) : this.clearScrollEvent();\n    }\n    if (prevProps.video !== this.props.video) {\n      (_j = this.videoRef.current) === null || _j === void 0 ? void 0 : _j.load();\n    }\n    var objectFit = this.getObjectFit();\n    if (objectFit !== this.state.mediaObjectFit) {\n      this.setState({\n        mediaObjectFit: objectFit\n      }, this.computeSizes);\n    }\n  };\n  Cropper.prototype.getAspect = function () {\n    var _a = this.props,\n      cropSize = _a.cropSize,\n      aspect = _a.aspect;\n    if (cropSize) {\n      return cropSize.width / cropSize.height;\n    }\n    return aspect;\n  };\n  Cropper.prototype.getObjectFit = function () {\n    var _a, _b, _c, _d;\n    if (this.props.objectFit === 'cover') {\n      var mediaRef = this.imageRef.current || this.videoRef.current;\n      if (mediaRef && this.containerRef) {\n        this.containerRect = this.containerRef.getBoundingClientRect();\n        var containerAspect = this.containerRect.width / this.containerRect.height;\n        var naturalWidth = ((_a = this.imageRef.current) === null || _a === void 0 ? void 0 : _a.naturalWidth) || ((_b = this.videoRef.current) === null || _b === void 0 ? void 0 : _b.videoWidth) || 0;\n        var naturalHeight = ((_c = this.imageRef.current) === null || _c === void 0 ? void 0 : _c.naturalHeight) || ((_d = this.videoRef.current) === null || _d === void 0 ? void 0 : _d.videoHeight) || 0;\n        var mediaAspect = naturalWidth / naturalHeight;\n        return mediaAspect < containerAspect ? 'horizontal-cover' : 'vertical-cover';\n      }\n      return 'horizontal-cover';\n    }\n    return this.props.objectFit;\n  };\n  Cropper.prototype.onPinchStart = function (e) {\n    var pointA = Cropper.getTouchPoint(e.touches[0]);\n    var pointB = Cropper.getTouchPoint(e.touches[1]);\n    this.lastPinchDistance = getDistanceBetweenPoints(pointA, pointB);\n    this.lastPinchRotation = getRotationBetweenPoints(pointA, pointB);\n    this.onDragStart(getCenter(pointA, pointB));\n  };\n  Cropper.prototype.onPinchMove = function (e) {\n    var _this = this;\n    if (!this.currentDoc || !this.currentWindow) return;\n    var pointA = Cropper.getTouchPoint(e.touches[0]);\n    var pointB = Cropper.getTouchPoint(e.touches[1]);\n    var center = getCenter(pointA, pointB);\n    this.onDrag(center);\n    if (this.rafPinchTimeout) this.currentWindow.cancelAnimationFrame(this.rafPinchTimeout);\n    this.rafPinchTimeout = this.currentWindow.requestAnimationFrame(function () {\n      var distance = getDistanceBetweenPoints(pointA, pointB);\n      var newZoom = _this.props.zoom * (distance / _this.lastPinchDistance);\n      _this.setNewZoom(newZoom, center, {\n        shouldUpdatePosition: false\n      });\n      _this.lastPinchDistance = distance;\n      var rotation = getRotationBetweenPoints(pointA, pointB);\n      var newRotation = _this.props.rotation + (rotation - _this.lastPinchRotation);\n      _this.props.onRotationChange && _this.props.onRotationChange(newRotation);\n      _this.lastPinchRotation = rotation;\n    });\n  };\n  Cropper.prototype.render = function () {\n    var _this = this;\n    var _a;\n    var _b = this.props,\n      image = _b.image,\n      video = _b.video,\n      mediaProps = _b.mediaProps,\n      cropperProps = _b.cropperProps,\n      transform = _b.transform,\n      _c = _b.crop,\n      x = _c.x,\n      y = _c.y,\n      rotation = _b.rotation,\n      zoom = _b.zoom,\n      cropShape = _b.cropShape,\n      showGrid = _b.showGrid,\n      roundCropAreaPixels = _b.roundCropAreaPixels,\n      _d = _b.style,\n      containerStyle = _d.containerStyle,\n      cropAreaStyle = _d.cropAreaStyle,\n      mediaStyle = _d.mediaStyle,\n      _e = _b.classes,\n      containerClassName = _e.containerClassName,\n      cropAreaClassName = _e.cropAreaClassName,\n      mediaClassName = _e.mediaClassName;\n    var objectFit = (_a = this.state.mediaObjectFit) !== null && _a !== void 0 ? _a : this.getObjectFit();\n    return React.createElement(\"div\", {\n      onMouseDown: this.onMouseDown,\n      onTouchStart: this.onTouchStart,\n      ref: function ref(el) {\n        return _this.containerRef = el;\n      },\n      \"data-testid\": \"container\",\n      style: containerStyle,\n      className: classNames('reactEasyCrop_Container', containerClassName)\n    }, image ? React.createElement(\"img\", __assign({\n      alt: \"\",\n      className: classNames('reactEasyCrop_Image', objectFit === 'contain' && 'reactEasyCrop_Contain', objectFit === 'horizontal-cover' && 'reactEasyCrop_Cover_Horizontal', objectFit === 'vertical-cover' && 'reactEasyCrop_Cover_Vertical', mediaClassName)\n    }, mediaProps, {\n      src: image,\n      ref: this.imageRef,\n      style: __assign(__assign({}, mediaStyle), {\n        transform: transform || \"translate(\".concat(x, \"px, \").concat(y, \"px) rotate(\").concat(rotation, \"deg) scale(\").concat(zoom, \")\")\n      }),\n      onLoad: this.onMediaLoad\n    })) : video && React.createElement(\"video\", __assign({\n      autoPlay: true,\n      playsInline: true,\n      loop: true,\n      muted: true,\n      className: classNames('reactEasyCrop_Video', objectFit === 'contain' && 'reactEasyCrop_Contain', objectFit === 'horizontal-cover' && 'reactEasyCrop_Cover_Horizontal', objectFit === 'vertical-cover' && 'reactEasyCrop_Cover_Vertical', mediaClassName)\n    }, mediaProps, {\n      ref: this.videoRef,\n      onLoadedMetadata: this.onMediaLoad,\n      style: __assign(__assign({}, mediaStyle), {\n        transform: transform || \"translate(\".concat(x, \"px, \").concat(y, \"px) rotate(\").concat(rotation, \"deg) scale(\").concat(zoom, \")\")\n      }),\n      controls: false\n    }), (Array.isArray(video) ? video : [{\n      src: video\n    }]).map(function (item) {\n      return React.createElement(\"source\", __assign({\n        key: item.src\n      }, item));\n    })), this.state.cropSize && React.createElement(\"div\", __assign({\n      ref: this.cropperRef,\n      style: __assign(__assign({}, cropAreaStyle), {\n        width: roundCropAreaPixels ? Math.round(this.state.cropSize.width) : this.state.cropSize.width,\n        height: roundCropAreaPixels ? Math.round(this.state.cropSize.height) : this.state.cropSize.height\n      }),\n      tabIndex: 0,\n      onKeyDown: this.onKeyDown,\n      onKeyUp: this.onKeyUp,\n      \"data-testid\": \"cropper\",\n      className: classNames('reactEasyCrop_CropArea', cropShape === 'round' && 'reactEasyCrop_CropAreaRound', showGrid && 'reactEasyCrop_CropAreaGrid', cropAreaClassName)\n    }, cropperProps)));\n  };\n  Cropper.defaultProps = {\n    zoom: 1,\n    rotation: 0,\n    aspect: 4 / 3,\n    maxZoom: MAX_ZOOM,\n    minZoom: MIN_ZOOM,\n    cropShape: 'rect',\n    objectFit: 'contain',\n    showGrid: true,\n    style: {},\n    classes: {},\n    mediaProps: {},\n    cropperProps: {},\n    zoomSpeed: 1,\n    restrictPosition: true,\n    zoomWithScroll: true,\n    keyboardStep: KEYBOARD_STEP\n  };\n  Cropper.getMousePoint = function (e) {\n    return {\n      x: Number(e.clientX),\n      y: Number(e.clientY)\n    };\n  };\n  Cropper.getTouchPoint = function (touch) {\n    return {\n      x: Number(touch.clientX),\n      y: Number(touch.clientY)\n    };\n  };\n  return Cropper;\n}(React.Component);\n\nexport { Cropper as default, getInitialCropFromCroppedAreaPercentages, getInitialCropFromCroppedAreaPixels };\n//# sourceMappingURL=index.module.mjs.map\n"],"names":[],"ignoreList":[0],"sourceRoot":""}\n//# sourceURL=webpack-internal:///(ssr)/./node_modules/react-easy-crop/index.module.mjs\n");
-
-/***/ })
-
-};
-;
\ No newline at end of file
diff --git a/.next/server/vendor-chunks/react-hook-form.js b/.next/server/vendor-chunks/react-hook-form.js
deleted file mode 100644
index 751be1e..0000000
--- a/.next/server/vendor-chunks/react-hook-form.js
+++ /dev/null
@@ -1,25 +0,0 @@
-"use strict";
-/*
- * ATTENTION: An "eval-source-map" devtool has been used.
- * This devtool is neither made for production nor for readable output files.
- * It uses "eval()" calls to create a separate source file with attached SourceMaps in the browser devtools.
- * If you are trying to read the output file, select a different devtool (https://webpack.js.org/configuration/devtool/)
- * or disable the default devtool with "devtool: false".
- * If you are looking for production-ready output files, see mode: "production" (https://webpack.js.org/configuration/mode/).
- */
-exports.id = "vendor-chunks/react-hook-form";
-exports.ids = ["vendor-chunks/react-hook-form"];
-exports.modules = {
-
-/***/ "(ssr)/./node_modules/react-hook-form/dist/index.esm.mjs":
-/*!*********************************************************!*\
- !*** ./node_modules/react-hook-form/dist/index.esm.mjs ***!
- \*********************************************************/
-/***/ ((__unused_webpack___webpack_module__, __webpack_exports__, __webpack_require__) => {
-
-eval("__webpack_require__.r(__webpack_exports__);\n/* harmony export */ __webpack_require__.d(__webpack_exports__, {\n/* harmony export */ Controller: () => (/* binding */ Controller),\n/* harmony export */ Form: () => (/* binding */ Form),\n/* harmony export */ FormProvider: () => (/* binding */ FormProvider),\n/* harmony export */ FormStateSubscribe: () => (/* binding */ FormStateSubscribe),\n/* harmony export */ Watch: () => (/* binding */ Watch),\n/* harmony export */ appendErrors: () => (/* binding */ appendErrors),\n/* harmony export */ createFormControl: () => (/* binding */ createFormControl),\n/* harmony export */ get: () => (/* binding */ get),\n/* harmony export */ set: () => (/* binding */ set),\n/* harmony export */ useController: () => (/* binding */ useController),\n/* harmony export */ useFieldArray: () => (/* binding */ useFieldArray),\n/* harmony export */ useForm: () => (/* binding */ useForm),\n/* harmony export */ useFormContext: () => (/* binding */ useFormContext),\n/* harmony export */ useFormState: () => (/* binding */ useFormState),\n/* harmony export */ useWatch: () => (/* binding */ useWatch)\n/* harmony export */ });\n/* harmony import */ var react__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! react */ \"(ssr)/./node_modules/next/dist/server/route-modules/app-page/vendored/ssr/react.js\");\n\n\nvar isCheckBoxInput = (element) => element.type === 'checkbox';\n\nvar isDateObject = (value) => value instanceof Date;\n\nvar isNullOrUndefined = (value) => value == null;\n\nconst isObjectType = (value) => typeof value === 'object';\nvar isObject = (value) => !isNullOrUndefined(value) &&\n !Array.isArray(value) &&\n isObjectType(value) &&\n !isDateObject(value);\n\nvar getEventValue = (event) => isObject(event) && event.target\n ? isCheckBoxInput(event.target)\n ? event.target.checked\n : event.target.value\n : event;\n\nvar getNodeParentName = (name) => name.substring(0, name.search(/\\.\\d+(\\.|$)/)) || name;\n\nvar isNameInFieldArray = (names, name) => names.has(getNodeParentName(name));\n\nvar isPlainObject = (tempObject) => {\n const prototypeCopy = tempObject.constructor && tempObject.constructor.prototype;\n return (isObject(prototypeCopy) && prototypeCopy.hasOwnProperty('isPrototypeOf'));\n};\n\nvar isWeb = typeof window !== 'undefined' &&\n typeof window.HTMLElement !== 'undefined' &&\n typeof document !== 'undefined';\n\nfunction cloneObject(data) {\n if (data instanceof Date) {\n return new Date(data);\n }\n const isFileListInstance = typeof FileList !== 'undefined' && data instanceof FileList;\n if (isWeb && (data instanceof Blob || isFileListInstance)) {\n return data;\n }\n const isArray = Array.isArray(data);\n if (!isArray && !(isObject(data) && isPlainObject(data))) {\n return data;\n }\n const copy = isArray ? [] : Object.create(Object.getPrototypeOf(data));\n for (const key in data) {\n if (Object.prototype.hasOwnProperty.call(data, key)) {\n copy[key] = cloneObject(data[key]);\n }\n }\n return copy;\n}\n\nvar isKey = (value) => /^\\w*$/.test(value);\n\nvar isUndefined = (val) => val === undefined;\n\nvar compact = (value) => Array.isArray(value) ? value.filter(Boolean) : [];\n\nvar stringToPath = (input) => compact(input.replace(/[\"|']|\\]/g, '').split(/\\.|\\[/));\n\nvar get = (object, path, defaultValue) => {\n if (!path || !isObject(object)) {\n return defaultValue;\n }\n const result = (isKey(path) ? [path] : stringToPath(path)).reduce((result, key) => isNullOrUndefined(result) ? result : result[key], object);\n return isUndefined(result) || result === object\n ? isUndefined(object[path])\n ? defaultValue\n : object[path]\n : result;\n};\n\nvar isBoolean = (value) => typeof value === 'boolean';\n\nvar isFunction = (value) => typeof value === 'function';\n\nvar set = (object, path, value) => {\n let index = -1;\n const tempPath = isKey(path) ? [path] : stringToPath(path);\n const length = tempPath.length;\n const lastIndex = length - 1;\n while (++index < length) {\n const key = tempPath[index];\n let newValue = value;\n if (index !== lastIndex) {\n const objValue = object[key];\n newValue =\n isObject(objValue) || Array.isArray(objValue)\n ? objValue\n : !isNaN(+tempPath[index + 1])\n ? []\n : {};\n }\n if (key === '__proto__' || key === 'constructor' || key === 'prototype') {\n return;\n }\n object[key] = newValue;\n object = object[key];\n }\n};\n\nconst EVENTS = {\n BLUR: 'blur',\n FOCUS_OUT: 'focusout',\n CHANGE: 'change',\n};\nconst VALIDATION_MODE = {\n onBlur: 'onBlur',\n onChange: 'onChange',\n onSubmit: 'onSubmit',\n onTouched: 'onTouched',\n all: 'all',\n};\nconst INPUT_VALIDATION_RULES = {\n max: 'max',\n min: 'min',\n maxLength: 'maxLength',\n minLength: 'minLength',\n pattern: 'pattern',\n required: 'required',\n validate: 'validate',\n};\n\n/**\n * Separate context for `control` to prevent unnecessary rerenders.\n * Internal hooks that only need control use this instead of full form context.\n */\nconst HookFormControlContext = react__WEBPACK_IMPORTED_MODULE_0__.createContext(null);\nHookFormControlContext.displayName = 'HookFormControlContext';\n/**\n * @internal Internal hook to access only control from context.\n */\nconst useFormControlContext = () => react__WEBPACK_IMPORTED_MODULE_0__.useContext(HookFormControlContext);\n\nvar getProxyFormState = (formState, control, localProxyFormState, isRoot = true) => {\n const result = {\n defaultValues: control._defaultValues,\n };\n for (const key in formState) {\n Object.defineProperty(result, key, {\n get: () => {\n const _key = key;\n if (control._proxyFormState[_key] !== VALIDATION_MODE.all) {\n control._proxyFormState[_key] = !isRoot || VALIDATION_MODE.all;\n }\n localProxyFormState && (localProxyFormState[_key] = true);\n return formState[_key];\n },\n });\n }\n return result;\n};\n\nconst useIsomorphicLayoutEffect = typeof window !== 'undefined' ? react__WEBPACK_IMPORTED_MODULE_0__.useLayoutEffect : react__WEBPACK_IMPORTED_MODULE_0__.useEffect;\n\n/**\n * This custom hook allows you to subscribe to each form state, and isolate the re-render at the custom hook level. It has its scope in terms of form state subscription, so it would not affect other useFormState and useForm. Using this hook can reduce the re-render impact on large and complex form application.\n *\n * @remarks\n * [API](https://react-hook-form.com/docs/useformstate) • [Demo](https://codesandbox.io/s/useformstate-75xly)\n *\n * @param props - include options on specify fields to subscribe. {@link UseFormStateReturn}\n *\n * @example\n * ```tsx\n * function App() {\n * const { register, handleSubmit, control } = useForm({\n * defaultValues: {\n * firstName: \"firstName\"\n * }});\n * const { dirtyFields } = useFormState({\n * control\n * });\n * const onSubmit = (data) => console.log(data);\n *\n * return (\n * \n * );\n * }\n * ```\n */\nfunction useFormState(props) {\n const formControl = useFormControlContext();\n const { control = formControl, disabled, name, exact } = props || {};\n const [formState, updateFormState] = react__WEBPACK_IMPORTED_MODULE_0__.useState(control._formState);\n const _localProxyFormState = react__WEBPACK_IMPORTED_MODULE_0__.useRef({\n isDirty: false,\n isLoading: false,\n dirtyFields: false,\n touchedFields: false,\n validatingFields: false,\n isValidating: false,\n isValid: false,\n errors: false,\n });\n useIsomorphicLayoutEffect(() => control._subscribe({\n name,\n formState: _localProxyFormState.current,\n exact,\n callback: (formState) => {\n !disabled &&\n updateFormState({\n ...control._formState,\n ...formState,\n });\n },\n }), [name, disabled, exact]);\n react__WEBPACK_IMPORTED_MODULE_0__.useEffect(() => {\n _localProxyFormState.current.isValid && control._setValid(true);\n }, [control]);\n return react__WEBPACK_IMPORTED_MODULE_0__.useMemo(() => getProxyFormState(formState, control, _localProxyFormState.current, false), [formState, control]);\n}\n\nvar isString = (value) => typeof value === 'string';\n\nvar generateWatchOutput = (names, _names, formValues, isGlobal, defaultValue) => {\n if (isString(names)) {\n isGlobal && _names.watch.add(names);\n return get(formValues, names, defaultValue);\n }\n if (Array.isArray(names)) {\n return names.map((fieldName) => (isGlobal && _names.watch.add(fieldName),\n get(formValues, fieldName)));\n }\n isGlobal && (_names.watchAll = true);\n return formValues;\n};\n\nvar isPrimitive = (value) => isNullOrUndefined(value) || !isObjectType(value);\n\nfunction deepEqual(object1, object2, _internal_visited = new WeakSet()) {\n if (isPrimitive(object1) || isPrimitive(object2)) {\n return Object.is(object1, object2);\n }\n if (isDateObject(object1) && isDateObject(object2)) {\n return Object.is(object1.getTime(), object2.getTime());\n }\n const keys1 = Object.keys(object1);\n const keys2 = Object.keys(object2);\n if (keys1.length !== keys2.length) {\n return false;\n }\n if (_internal_visited.has(object1) || _internal_visited.has(object2)) {\n return true;\n }\n _internal_visited.add(object1);\n _internal_visited.add(object2);\n for (const key of keys1) {\n const val1 = object1[key];\n if (!keys2.includes(key)) {\n return false;\n }\n if (key !== 'ref') {\n const val2 = object2[key];\n if ((isDateObject(val1) && isDateObject(val2)) ||\n (isObject(val1) && isObject(val2)) ||\n (Array.isArray(val1) && Array.isArray(val2))\n ? !deepEqual(val1, val2, _internal_visited)\n : !Object.is(val1, val2)) {\n return false;\n }\n }\n }\n return true;\n}\n\n/**\n * Custom hook to subscribe to field change and isolate re-rendering at the component level.\n *\n * @remarks\n *\n * [API](https://react-hook-form.com/docs/usewatch) • [Demo](https://codesandbox.io/s/react-hook-form-v7-ts-usewatch-h9i5e)\n *\n * @example\n * ```tsx\n * const { control } = useForm();\n * const values = useWatch({\n * name: \"fieldName\"\n * control,\n * })\n * ```\n */\nfunction useWatch(props) {\n const formControl = useFormControlContext();\n const { control = formControl, name, defaultValue, disabled, exact, compute, } = props || {};\n const _defaultValue = react__WEBPACK_IMPORTED_MODULE_0__.useRef(defaultValue);\n const _compute = react__WEBPACK_IMPORTED_MODULE_0__.useRef(compute);\n const _computeFormValues = react__WEBPACK_IMPORTED_MODULE_0__.useRef(undefined);\n const _prevControl = react__WEBPACK_IMPORTED_MODULE_0__.useRef(control);\n const _prevName = react__WEBPACK_IMPORTED_MODULE_0__.useRef(name);\n _compute.current = compute;\n const [value, updateValue] = react__WEBPACK_IMPORTED_MODULE_0__.useState(() => {\n const defaultValue = control._getWatch(name, _defaultValue.current);\n return _compute.current ? _compute.current(defaultValue) : defaultValue;\n });\n const getCurrentOutput = react__WEBPACK_IMPORTED_MODULE_0__.useCallback((values) => {\n const formValues = generateWatchOutput(name, control._names, values || control._formValues, false, _defaultValue.current);\n return _compute.current ? _compute.current(formValues) : formValues;\n }, [control._formValues, control._names, name]);\n const refreshValue = react__WEBPACK_IMPORTED_MODULE_0__.useCallback((values) => {\n if (!disabled) {\n const formValues = generateWatchOutput(name, control._names, values || control._formValues, false, _defaultValue.current);\n if (_compute.current) {\n const computedFormValues = _compute.current(formValues);\n if (!deepEqual(computedFormValues, _computeFormValues.current)) {\n updateValue(computedFormValues);\n _computeFormValues.current = computedFormValues;\n }\n }\n else {\n updateValue(formValues);\n }\n }\n }, [control._formValues, control._names, disabled, name]);\n useIsomorphicLayoutEffect(() => {\n if (_prevControl.current !== control ||\n !deepEqual(_prevName.current, name)) {\n _prevControl.current = control;\n _prevName.current = name;\n refreshValue();\n }\n return control._subscribe({\n name,\n formState: {\n values: true,\n },\n exact,\n callback: (formState) => {\n refreshValue(formState.values);\n },\n });\n }, [control, exact, name, refreshValue]);\n react__WEBPACK_IMPORTED_MODULE_0__.useEffect(() => control._removeUnmounted());\n // If name or control changed for this render, synchronously reflect the\n // latest value so callers (like useController) see the correct value\n // immediately on the same render.\n // Optimize: Check control reference first before expensive deepEqual\n const controlChanged = _prevControl.current !== control;\n const prevName = _prevName.current;\n // Cache the computed output to avoid duplicate calls within the same render\n // We include shouldReturnImmediate in deps to ensure proper recomputation\n const computedOutput = react__WEBPACK_IMPORTED_MODULE_0__.useMemo(() => {\n if (disabled) {\n return null;\n }\n const nameChanged = !controlChanged && !deepEqual(prevName, name);\n const shouldReturnImmediate = controlChanged || nameChanged;\n return shouldReturnImmediate ? getCurrentOutput() : null;\n }, [disabled, controlChanged, name, prevName, getCurrentOutput]);\n return computedOutput !== null ? computedOutput : value;\n}\n\n/**\n * Custom hook to work with controlled component, this function provide you with both form and field level state. Re-render is isolated at the hook level.\n *\n * @remarks\n * [API](https://react-hook-form.com/docs/usecontroller) • [Demo](https://codesandbox.io/s/usecontroller-0o8px)\n *\n * @param props - the path name to the form field value, and validation rules.\n *\n * @returns field properties, field and form state. {@link UseControllerReturn}\n *\n * @example\n * ```tsx\n * function Input(props) {\n * const { field, fieldState, formState } = useController(props);\n * return (\n *