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ode.react.js","webpack://spa/./node_modules/draft-js/lib/DraftEffects.js","webpack://spa/./node_modules/draft-js/lib/DraftEntity.js","webpack://spa/./node_modules/draft-js/lib/DraftEntityInstance.js","webpack://spa/./node_modules/draft-js/lib/DraftEntitySegments.js","webpack://spa/./node_modules/draft-js/lib/DraftJsDebugLogging.js","webpack://spa/./node_modules/draft-js/lib/DraftModifier.js","webpack://spa/./node_modules/draft-js/lib/DraftOffsetKey.js","webpack://spa/./node_modules/draft-js/lib/DraftPasteProcessor.js","webpack://spa/./node_modules/draft-js/lib/DraftRemovableWord.js","webpack://spa/./node_modules/draft-js/lib/DraftStringKey.js","webpack://spa/./node_modules/draft-js/lib/DraftTreeAdapter.js","webpack://spa/./node_modules/draft-js/lib/DraftTreeInvariants.js","webpack://spa/./node_modules/draft-js/lib/EditorBidiService.js","webpack://spa/./node_modules/draft-js/lib/EditorState.js","webpack://spa/./node_modules/draft-js/lib/KeyBindingUtil.js","webpack://spa/./node_modules/draft-js/lib/RawDraftContentState.js","webpack://spa/./node_modules/draft-js/lib/RichTextEditorUtil.js","webpack://spa/./node_modules/draft-js/lib/SecondaryClipboard.js","webpack://spa/./node_modules/draft-js/lib/SelectionState.js","webpack://spa/./node_modules/draft-js/lib/adjustBlockDepthForContentState.js","webpack://spa/./node_modules/draft-js/lib/applyEntityToContentBlock.js","webpack://spa/./node_modules/draft-js/lib/applyEntityToContentState.js","webpack://spa/./node_modules/draft-js/lib/convertFromDraftStateToRaw.js","webpack://spa/./node_modules/draft-js/lib/convertFromHTMLToContentBlocks.js","webpack://spa/./node_modules/draft-js/lib/convertFromRawToDraftState.js","webpack://spa/./node_modules/draft-js/lib/createCharacterList.js","webpack://spa/./node_modules/draft-js/lib/decodeEntityRanges.js","webpack://spa/./node_modules/draft-js/lib/decodeInlineStyleRanges.js","webpack://spa/./node_modules/draft-js/lib/draftKeyUtils.js","webpack://spa/./node_modules/draft-js/lib/editOnBeforeInput.js","webpack://spa/./node_modules/draft-js/lib/editOnBlur.js","webpack://spa/./node_modules/draft-js/lib/editOnCompositionStart.js","webpack://spa/./node_modules/draft-js/lib/editOnCopy.js","webpack://spa/./node_modules/draft-js/lib/editOnCut.js","webpack://spa/./node_modules/draft-js/lib/editOnDragOver.js","webpack://spa/./node_modules/draft-js/lib/editOnDragStart.js","webpack://spa/./node_modules/draft-js/lib/editOnFocus.js","webpack://spa/./node_modules/draft-js/lib/editOnInput.js","webpack://spa/./node_modules/draft-js/lib/editOnKeyDown.js","webpack://spa/./node_modules/draft-js/lib/editOnPaste.js","webpack://spa/./node_modules/draft-js/lib/editOnSelect.js","webpack://spa/./node_modules/draft-js/lib/encodeEntityRanges.js","webpack://spa/./node_modules/draft-js/lib/encodeInlineStyleRanges.js","webpack://spa/./node_modules/draft-js/lib/expandRangeToStartOfLine.js","webpack://spa/./node_modules/draft-js/lib/findAncestorOffsetKey.js","webpack://spa/./node_modules/draft-js/lib/findRangesImmutable.js","webpack://spa/./node_modules/draft-js/lib/generateRandomKey.js","webpack://spa/./node_modules/draft-js/lib/getCharacterRemovalRange.js","webpack://spa/./node_modules/draft-js/lib/getContentEditableContainer.js","webpack://spa/./node_modules/draft-js/lib/getContentStateFragment.js","webpack://spa/./node_modules/draft-js/lib/getCorrectDocumentFromNode.js","webpack://spa/./node_modules/draft-js/lib/getDefaultKeyBinding.js","webpack://spa/./node_modules/draft-js/lib/getDraftEditorSelection.js","webpack://spa/./node_modules/draft-js/lib/getDraftEditorSelectionWithNodes.js","webpack://spa/./node_modules/draft-js/lib/getEntityKeyForSelection.js","webpack://spa/./node_modules/draft-js/lib/getFragmentFromSelection.js","webpack://spa/./node_modules/draft-js/lib/getNextDelimiterBlockKey.js","webpack://spa/./node_modules/draft-js/lib/getOwnObjectValues.js","webpack://spa/./node_modules/draft-js/lib/getRangeBoundingClientRect.js","webpack://spa/./node_modules/draft-js/lib/getRangeClientRects.js","webpack://spa/./node_modules/draft-js/lib/getRangesForDraftEntity.js","webpack://spa/./node_modules/draft-js/lib/getSafeBodyFromHTML.js","webpack://spa/./node_modules/draft-js/lib/getSelectionOffsetKeyForNode.js","webpack://spa/./node_modules/draft-js/lib/getTextContentFromFiles.js","webpack://spa/./node_modules/draft-js/lib/getUpdatedSelectionState.js","webpack://spa/./node_modules/draft-js/lib/getVisibleSelectionRect.js","webpack://spa/./node_modules/draft-js/lib/getWindowForNode.js","webpack://spa/./node_modules/draft-js/lib/gkx.js","webpack://spa/./node_modules/draft-js/lib/insertFragmentIntoContentState.js","webpack://spa/./node_modules/draft-js/lib/insertIntoList.js","webpack://spa/./node_modules/draft-js/lib/insertTextIntoContentState.js","webpack://spa/./node_modules/draft-js/lib/isElement.js","webpack://spa/./node_modules/draft-js/lib/isEventHandled.js","webpack://spa/./node_modules/draft-js/lib/isHTMLAnchorElement.js","webpack://spa/./node_modules/draft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* Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nfunction _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\nvar BlockMapBuilder = require(\"./BlockMapBuilder\");\n\nvar CharacterMetadata = require(\"./CharacterMetadata\");\n\nvar ContentBlock = require(\"./ContentBlock\");\n\nvar ContentBlockNode = require(\"./ContentBlockNode\");\n\nvar DraftModifier = require(\"./DraftModifier\");\n\nvar EditorState = require(\"./EditorState\");\n\nvar generateRandomKey = require(\"./generateRandomKey\");\n\nvar gkx = require(\"./gkx\");\n\nvar Immutable = require(\"immutable\");\n\nvar moveBlockInContentState = require(\"./moveBlockInContentState\");\n\nvar experimentalTreeDataSupport = gkx('draft_tree_data_support');\nvar ContentBlockRecord = experimentalTreeDataSupport ? ContentBlockNode : ContentBlock;\nvar List = Immutable.List,\n Repeat = Immutable.Repeat;\nvar AtomicBlockUtils = {\n insertAtomicBlock: function insertAtomicBlock(editorState, entityKey, character) {\n var contentState = editorState.getCurrentContent();\n var selectionState = editorState.getSelection();\n var afterRemoval = DraftModifier.removeRange(contentState, selectionState, 'backward');\n var targetSelection = afterRemoval.getSelectionAfter();\n var afterSplit = DraftModifier.splitBlock(afterRemoval, targetSelection);\n var insertionTarget = afterSplit.getSelectionAfter();\n var asAtomicBlock = DraftModifier.setBlockType(afterSplit, insertionTarget, 'atomic');\n var charData = CharacterMetadata.create({\n entity: entityKey\n });\n var atomicBlockConfig = {\n key: generateRandomKey(),\n type: 'atomic',\n text: character,\n characterList: List(Repeat(charData, character.length))\n };\n var atomicDividerBlockConfig = {\n key: generateRandomKey(),\n type: 'unstyled'\n };\n\n if (experimentalTreeDataSupport) {\n atomicBlockConfig = _objectSpread({}, atomicBlockConfig, {\n nextSibling: atomicDividerBlockConfig.key\n });\n atomicDividerBlockConfig = _objectSpread({}, atomicDividerBlockConfig, {\n prevSibling: atomicBlockConfig.key\n });\n }\n\n var fragmentArray = [new ContentBlockRecord(atomicBlockConfig), new ContentBlockRecord(atomicDividerBlockConfig)];\n var fragment = BlockMapBuilder.createFromArray(fragmentArray);\n var withAtomicBlock = DraftModifier.replaceWithFragment(asAtomicBlock, insertionTarget, fragment);\n var newContent = withAtomicBlock.merge({\n selectionBefore: selectionState,\n selectionAfter: withAtomicBlock.getSelectionAfter().set('hasFocus', true)\n });\n return EditorState.push(editorState, newContent, 'insert-fragment');\n },\n moveAtomicBlock: function moveAtomicBlock(editorState, atomicBlock, targetRange, insertionMode) {\n var contentState = editorState.getCurrentContent();\n var selectionState = editorState.getSelection();\n var withMovedAtomicBlock;\n\n if (insertionMode === 'before' || insertionMode === 'after') {\n var targetBlock = contentState.getBlockForKey(insertionMode === 'before' ? 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arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\nfunction _objectWithoutPropertiesLoose(source, excluded) { if (source == null) return {}; var target = {}; var sourceKeys = Object.keys(source); var key, i; for (i = 0; i < sourceKeys.length; i++) { key = sourceKeys[i]; if (excluded.indexOf(key) >= 0) continue; target[key] = source[key]; } return target; }\n\nvar findRangesImmutable = require(\"./findRangesImmutable\");\n\nvar getOwnObjectValues = require(\"./getOwnObjectValues\");\n\nvar Immutable = require(\"immutable\");\n\nvar List = Immutable.List,\n Repeat = Immutable.Repeat,\n Record = Immutable.Record;\n\nvar returnTrue = function returnTrue() {\n return true;\n};\n\nvar defaultLeafRange = {\n start: null,\n end: null\n};\nvar LeafRange = Record(defaultLeafRange);\nvar defaultDecoratorRange = {\n start: null,\n end: null,\n decoratorKey: null,\n leaves: null\n};\nvar DecoratorRange = Record(defaultDecoratorRange);\nvar BlockTree = {\n /**\n * Generate a block tree for a given ContentBlock/decorator pair.\n */\n generate: function generate(contentState, block, decorator) {\n var textLength = block.getLength();\n\n if (!textLength) {\n return List.of(new DecoratorRange({\n start: 0,\n end: 0,\n decoratorKey: null,\n leaves: List.of(new LeafRange({\n start: 0,\n end: 0\n }))\n }));\n }\n\n var leafSets = [];\n var decorations = decorator ? decorator.getDecorations(block, contentState) : List(Repeat(null, textLength));\n var chars = block.getCharacterList();\n findRangesImmutable(decorations, areEqual, returnTrue, function (start, end) {\n leafSets.push(new DecoratorRange({\n start: start,\n end: end,\n decoratorKey: decorations.get(start),\n leaves: generateLeaves(chars.slice(start, end).toList(), start)\n }));\n });\n return List(leafSets);\n },\n fromJS: function fromJS(_ref) {\n var leaves = _ref.leaves,\n other = _objectWithoutPropertiesLoose(_ref, [\"leaves\"]);\n\n return new DecoratorRange(_objectSpread({}, other, {\n leaves: leaves != null ? List(Array.isArray(leaves) ? leaves : getOwnObjectValues(leaves)).map(function (leaf) {\n return LeafRange(leaf);\n }) : null\n }));\n }\n};\n/**\n * Generate LeafRange records for a given character list.\n */\n\nfunction generateLeaves(characters, offset) {\n var leaves = [];\n var inlineStyles = characters.map(function (c) {\n return c.getStyle();\n }).toList();\n findRangesImmutable(inlineStyles, areEqual, returnTrue, function (start, end) {\n leaves.push(new LeafRange({\n start: start + offset,\n end: end + offset\n }));\n });\n return List(leaves);\n}\n\nfunction areEqual(a, b) {\n return a === b;\n}\n\nmodule.exports = BlockTree;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nfunction _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\nvar _require = require(\"immutable\"),\n Map = _require.Map,\n OrderedSet = _require.OrderedSet,\n Record = _require.Record; // Immutable.map is typed such that the value for every key in the map\n// must be the same type\n\n\nvar EMPTY_SET = OrderedSet();\nvar defaultRecord = {\n style: EMPTY_SET,\n entity: null\n};\nvar CharacterMetadataRecord = Record(defaultRecord);\n\nvar CharacterMetadata = /*#__PURE__*/function (_CharacterMetadataRec) {\n _inheritsLoose(CharacterMetadata, _CharacterMetadataRec);\n\n function CharacterMetadata() {\n return _CharacterMetadataRec.apply(this, arguments) || this;\n }\n\n var _proto = CharacterMetadata.prototype;\n\n _proto.getStyle = function getStyle() {\n return this.get('style');\n };\n\n _proto.getEntity = function getEntity() {\n return this.get('entity');\n };\n\n _proto.hasStyle = function hasStyle(style) {\n return this.getStyle().includes(style);\n };\n\n CharacterMetadata.applyStyle = function applyStyle(record, style) {\n var withStyle = record.set('style', record.getStyle().add(style));\n return CharacterMetadata.create(withStyle);\n };\n\n CharacterMetadata.removeStyle = function removeStyle(record, style) {\n var withoutStyle = record.set('style', record.getStyle().remove(style));\n return CharacterMetadata.create(withoutStyle);\n };\n\n CharacterMetadata.applyEntity = function applyEntity(record, entityKey) {\n var withEntity = record.getEntity() === entityKey ? record : record.set('entity', entityKey);\n return CharacterMetadata.create(withEntity);\n }\n /**\n * Use this function instead of the `CharacterMetadata` constructor.\n * Since most content generally uses only a very small number of\n * style/entity permutations, we can reuse these objects as often as\n * possible.\n */\n ;\n\n CharacterMetadata.create = function create(config) {\n if (!config) {\n return EMPTY;\n }\n\n var defaultConfig = {\n style: EMPTY_SET,\n entity: null\n }; // Fill in unspecified properties, if necessary.\n\n var configMap = Map(defaultConfig).merge(config);\n var existing = pool.get(configMap);\n\n if (existing) {\n return existing;\n }\n\n var newCharacter = new CharacterMetadata(configMap);\n pool = pool.set(configMap, newCharacter);\n return newCharacter;\n };\n\n CharacterMetadata.fromJS = function fromJS(_ref) {\n var style = _ref.style,\n entity = _ref.entity;\n return new CharacterMetadata({\n style: Array.isArray(style) ? OrderedSet(style) : style,\n entity: Array.isArray(entity) ? OrderedSet(entity) : entity\n });\n };\n\n return CharacterMetadata;\n}(CharacterMetadataRecord);\n\nvar EMPTY = new CharacterMetadata();\nvar pool = Map([[Map(defaultRecord), EMPTY]]);\nCharacterMetadata.EMPTY = EMPTY;\nmodule.exports = CharacterMetadata;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\nvar Immutable = require(\"immutable\");\n\nvar List = Immutable.List;\nvar DELIMITER = '.';\n/**\n * A CompositeDraftDecorator traverses through a list of DraftDecorator\n * instances to identify sections of a ContentBlock that should be rendered\n * in a \"decorated\" manner. For example, hashtags, mentions, and links may\n * be intended to stand out visually, be rendered as anchors, etc.\n *\n * The list of decorators supplied to the constructor will be used in the\n * order they are provided. This allows the caller to specify a priority for\n * string matching, in case of match collisions among decorators.\n *\n * For instance, I may have a link with a `#` in its text. Though this section\n * of text may match our hashtag decorator, it should not be treated as a\n * hashtag. I should therefore list my link DraftDecorator\n * before my hashtag DraftDecorator when constructing this composite\n * decorator instance.\n *\n * Thus, when a collision like this is encountered, the earlier match is\n * preserved and the new match is discarded.\n */\n\nvar CompositeDraftDecorator = /*#__PURE__*/function () {\n function CompositeDraftDecorator(decorators) {\n _defineProperty(this, \"_decorators\", void 0);\n\n // Copy the decorator array, since we use this array order to determine\n // precedence of decoration matching. If the array is mutated externally,\n // we don't want to be affected here.\n this._decorators = decorators.slice();\n }\n\n var _proto = CompositeDraftDecorator.prototype;\n\n _proto.getDecorations = function getDecorations(block, contentState) {\n var decorations = Array(block.getText().length).fill(null);\n\n this._decorators.forEach(function (\n /*object*/\n decorator,\n /*number*/\n ii) {\n var counter = 0;\n var strategy = decorator.strategy;\n\n var callback = function callback(\n /*number*/\n start,\n /*number*/\n end) {\n // Find out if any of our matching range is already occupied\n // by another decorator. If so, discard the match. Otherwise, store\n // the component key for rendering.\n if (canOccupySlice(decorations, start, end)) {\n occupySlice(decorations, start, end, ii + DELIMITER + counter);\n counter++;\n }\n };\n\n strategy(block, callback, contentState);\n });\n\n return List(decorations);\n };\n\n _proto.getComponentForKey = function getComponentForKey(key) {\n var componentKey = parseInt(key.split(DELIMITER)[0], 10);\n return this._decorators[componentKey].component;\n };\n\n _proto.getPropsForKey = function getPropsForKey(key) {\n var componentKey = parseInt(key.split(DELIMITER)[0], 10);\n return this._decorators[componentKey].props;\n };\n\n return CompositeDraftDecorator;\n}();\n/**\n * Determine whether we can occupy the specified slice of the decorations\n * array.\n */\n\n\nfunction canOccupySlice(decorations, start, end) {\n for (var ii = start; ii < end; ii++) {\n if (decorations[ii] != null) {\n return false;\n }\n }\n\n return true;\n}\n/**\n * Splice the specified component into our decoration array at the desired\n * range.\n */\n\n\nfunction occupySlice(targetArr, start, end, componentKey) {\n for (var ii = start; ii < end; ii++) {\n targetArr[ii] = componentKey;\n }\n}\n\nmodule.exports = CompositeDraftDecorator;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nfunction _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\nvar CharacterMetadata = require(\"./CharacterMetadata\");\n\nvar findRangesImmutable = require(\"./findRangesImmutable\");\n\nvar Immutable = require(\"immutable\");\n\nvar List = Immutable.List,\n Map = Immutable.Map,\n OrderedSet = Immutable.OrderedSet,\n Record = Immutable.Record,\n Repeat = Immutable.Repeat;\nvar EMPTY_SET = OrderedSet();\nvar defaultRecord = {\n key: '',\n type: 'unstyled',\n text: '',\n characterList: List(),\n depth: 0,\n data: Map()\n};\nvar ContentBlockRecord = Record(defaultRecord);\n\nvar decorateCharacterList = function decorateCharacterList(config) {\n if (!config) {\n return config;\n }\n\n var characterList = config.characterList,\n text = config.text;\n\n if (text && !characterList) {\n config.characterList = List(Repeat(CharacterMetadata.EMPTY, text.length));\n }\n\n return config;\n};\n\nvar ContentBlock = /*#__PURE__*/function (_ContentBlockRecord) {\n _inheritsLoose(ContentBlock, _ContentBlockRecord);\n\n function ContentBlock(config) {\n return _ContentBlockRecord.call(this, decorateCharacterList(config)) || this;\n }\n\n var _proto = ContentBlock.prototype;\n\n _proto.getKey = function getKey() {\n return this.get('key');\n };\n\n _proto.getType = function getType() {\n return this.get('type');\n };\n\n _proto.getText = function getText() {\n return this.get('text');\n };\n\n _proto.getCharacterList = function getCharacterList() {\n return this.get('characterList');\n };\n\n _proto.getLength = function getLength() {\n return this.getText().length;\n };\n\n _proto.getDepth = function getDepth() {\n return this.get('depth');\n };\n\n _proto.getData = function getData() {\n return this.get('data');\n };\n\n _proto.getInlineStyleAt = function getInlineStyleAt(offset) {\n var character = this.getCharacterList().get(offset);\n return character ? character.getStyle() : EMPTY_SET;\n };\n\n _proto.getEntityAt = function getEntityAt(offset) {\n var character = this.getCharacterList().get(offset);\n return character ? character.getEntity() : null;\n }\n /**\n * Execute a callback for every contiguous range of styles within the block.\n */\n ;\n\n _proto.findStyleRanges = function findStyleRanges(filterFn, callback) {\n findRangesImmutable(this.getCharacterList(), haveEqualStyle, filterFn, callback);\n }\n /**\n * Execute a callback for every contiguous range of entities within the block.\n */\n ;\n\n _proto.findEntityRanges = function findEntityRanges(filterFn, callback) {\n findRangesImmutable(this.getCharacterList(), haveEqualEntity, filterFn, callback);\n };\n\n return ContentBlock;\n}(ContentBlockRecord);\n\nfunction haveEqualStyle(charA, charB) {\n return charA.getStyle() === charB.getStyle();\n}\n\nfunction haveEqualEntity(charA, charB) {\n return charA.getEntity() === charB.getEntity();\n}\n\nmodule.exports = ContentBlock;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n *\n * This file is a fork of ContentBlock adding support for nesting references by\n * providing links to children, parent, prevSibling, and nextSibling.\n *\n * This is unstable and not part of the public API and should not be used by\n * production systems. This file may be update/removed without notice.\n */\n'use strict';\n\nfunction _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\nvar CharacterMetadata = require(\"./CharacterMetadata\");\n\nvar findRangesImmutable = require(\"./findRangesImmutable\");\n\nvar Immutable = require(\"immutable\");\n\nvar List = Immutable.List,\n Map = Immutable.Map,\n OrderedSet = Immutable.OrderedSet,\n Record = Immutable.Record,\n Repeat = Immutable.Repeat;\nvar EMPTY_SET = OrderedSet();\nvar defaultRecord = {\n parent: null,\n characterList: List(),\n data: Map(),\n depth: 0,\n key: '',\n text: '',\n type: 'unstyled',\n children: List(),\n prevSibling: null,\n nextSibling: null\n};\n\nvar haveEqualStyle = function haveEqualStyle(charA, charB) {\n return charA.getStyle() === charB.getStyle();\n};\n\nvar haveEqualEntity = function haveEqualEntity(charA, charB) {\n return charA.getEntity() === charB.getEntity();\n};\n\nvar decorateCharacterList = function decorateCharacterList(config) {\n if (!config) {\n return config;\n }\n\n var characterList = config.characterList,\n text = config.text;\n\n if (text && !characterList) {\n config.characterList = List(Repeat(CharacterMetadata.EMPTY, text.length));\n }\n\n return config;\n};\n\nvar ContentBlockNode = /*#__PURE__*/function (_ref) {\n _inheritsLoose(ContentBlockNode, _ref);\n\n function ContentBlockNode() {\n var props = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : defaultRecord;\n\n /* eslint-disable-next-line constructor-super */\n return _ref.call(this, decorateCharacterList(props)) || this;\n }\n\n var _proto = ContentBlockNode.prototype;\n\n _proto.getKey = function getKey() {\n return this.get('key');\n };\n\n _proto.getType = function getType() {\n return this.get('type');\n };\n\n _proto.getText = function getText() {\n return this.get('text');\n };\n\n _proto.getCharacterList = function getCharacterList() {\n return this.get('characterList');\n };\n\n _proto.getLength = function getLength() {\n return this.getText().length;\n };\n\n _proto.getDepth = function getDepth() {\n return this.get('depth');\n };\n\n _proto.getData = function getData() {\n return this.get('data');\n };\n\n _proto.getInlineStyleAt = function getInlineStyleAt(offset) {\n var character = this.getCharacterList().get(offset);\n return character ? character.getStyle() : EMPTY_SET;\n };\n\n _proto.getEntityAt = function getEntityAt(offset) {\n var character = this.getCharacterList().get(offset);\n return character ? character.getEntity() : null;\n };\n\n _proto.getChildKeys = function getChildKeys() {\n return this.get('children');\n };\n\n _proto.getParentKey = function getParentKey() {\n return this.get('parent');\n };\n\n _proto.getPrevSiblingKey = function getPrevSiblingKey() {\n return this.get('prevSibling');\n };\n\n _proto.getNextSiblingKey = function getNextSiblingKey() {\n return this.get('nextSibling');\n };\n\n _proto.findStyleRanges = function findStyleRanges(filterFn, callback) {\n findRangesImmutable(this.getCharacterList(), haveEqualStyle, filterFn, callback);\n };\n\n _proto.findEntityRanges = function findEntityRanges(filterFn, callback) {\n findRangesImmutable(this.getCharacterList(), haveEqualEntity, filterFn, callback);\n };\n\n return ContentBlockNode;\n}(Record(defaultRecord));\n\nmodule.exports = ContentBlockNode;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nfunction _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\nfunction _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\nvar BlockMapBuilder = require(\"./BlockMapBuilder\");\n\nvar CharacterMetadata = require(\"./CharacterMetadata\");\n\nvar ContentBlock = require(\"./ContentBlock\");\n\nvar ContentBlockNode = require(\"./ContentBlockNode\");\n\nvar DraftEntity = require(\"./DraftEntity\");\n\nvar SelectionState = require(\"./SelectionState\");\n\nvar generateRandomKey = require(\"./generateRandomKey\");\n\nvar getOwnObjectValues = require(\"./getOwnObjectValues\");\n\nvar gkx = require(\"./gkx\");\n\nvar Immutable = require(\"immutable\");\n\nvar sanitizeDraftText = require(\"./sanitizeDraftText\");\n\nvar List = Immutable.List,\n Record = Immutable.Record,\n Repeat = Immutable.Repeat,\n ImmutableMap = Immutable.Map,\n OrderedMap = Immutable.OrderedMap;\nvar defaultRecord = {\n entityMap: null,\n blockMap: null,\n selectionBefore: null,\n selectionAfter: null\n};\nvar ContentStateRecord = Record(defaultRecord);\n/* $FlowFixMe[signature-verification-failure] Supressing a `signature-\n * verification-failure` error here. TODO: T65949050 Clean up the branch for\n * this GK */\n\nvar ContentBlockNodeRecord = gkx('draft_tree_data_support') ? ContentBlockNode : ContentBlock;\n\nvar ContentState = /*#__PURE__*/function (_ContentStateRecord) {\n _inheritsLoose(ContentState, _ContentStateRecord);\n\n function ContentState() {\n return _ContentStateRecord.apply(this, arguments) || this;\n }\n\n var _proto = ContentState.prototype;\n\n _proto.getEntityMap = function getEntityMap() {\n // TODO: update this when we fully remove DraftEntity\n return DraftEntity;\n };\n\n _proto.getBlockMap = function getBlockMap() {\n return this.get('blockMap');\n };\n\n _proto.getSelectionBefore = function getSelectionBefore() {\n return this.get('selectionBefore');\n };\n\n _proto.getSelectionAfter = function getSelectionAfter() {\n return this.get('selectionAfter');\n };\n\n _proto.getBlockForKey = function getBlockForKey(key) {\n var block = this.getBlockMap().get(key);\n return block;\n };\n\n _proto.getKeyBefore = function getKeyBefore(key) {\n return this.getBlockMap().reverse().keySeq().skipUntil(function (v) {\n return v === key;\n }).skip(1).first();\n };\n\n _proto.getKeyAfter = function getKeyAfter(key) {\n return this.getBlockMap().keySeq().skipUntil(function (v) {\n return v === key;\n }).skip(1).first();\n };\n\n _proto.getBlockAfter = function getBlockAfter(key) {\n return this.getBlockMap().skipUntil(function (_, k) {\n return k === key;\n }).skip(1).first();\n };\n\n _proto.getBlockBefore = function getBlockBefore(key) {\n return this.getBlockMap().reverse().skipUntil(function (_, k) {\n return k === key;\n }).skip(1).first();\n };\n\n _proto.getBlocksAsArray = function getBlocksAsArray() {\n return this.getBlockMap().toArray();\n };\n\n _proto.getFirstBlock = function getFirstBlock() {\n return this.getBlockMap().first();\n };\n\n _proto.getLastBlock = function getLastBlock() {\n return this.getBlockMap().last();\n };\n\n _proto.getPlainText = function getPlainText(delimiter) {\n return this.getBlockMap().map(function (block) {\n return block ? block.getText() : '';\n }).join(delimiter || '\\n');\n };\n\n _proto.getLastCreatedEntityKey = function getLastCreatedEntityKey() {\n // TODO: update this when we fully remove DraftEntity\n return DraftEntity.__getLastCreatedEntityKey();\n };\n\n _proto.hasText = function hasText() {\n var blockMap = this.getBlockMap();\n return blockMap.size > 1 || // make sure that there are no zero width space chars\n escape(blockMap.first().getText()).replace(/%u200B/g, '').length > 0;\n };\n\n _proto.createEntity = function createEntity(type, mutability, data) {\n // TODO: update this when we fully remove DraftEntity\n DraftEntity.__create(type, mutability, data);\n\n return this;\n };\n\n _proto.mergeEntityData = function mergeEntityData(key, toMerge) {\n // TODO: update this when we fully remove DraftEntity\n DraftEntity.__mergeData(key, toMerge);\n\n return this;\n };\n\n _proto.replaceEntityData = function replaceEntityData(key, newData) {\n // TODO: update this when we fully remove DraftEntity\n DraftEntity.__replaceData(key, newData);\n\n return this;\n };\n\n _proto.addEntity = function addEntity(instance) {\n // TODO: update this when we fully remove DraftEntity\n DraftEntity.__add(instance);\n\n return this;\n };\n\n _proto.getEntity = function getEntity(key) {\n // TODO: update this when we fully remove DraftEntity\n return DraftEntity.__get(key);\n };\n\n _proto.getAllEntities = function getAllEntities() {\n return DraftEntity.__getAll();\n };\n\n _proto.loadWithEntities = function loadWithEntities(entities) {\n return DraftEntity.__loadWithEntities(entities);\n };\n\n ContentState.createFromBlockArray = function createFromBlockArray( // TODO: update flow type when we completely deprecate the old entity API\n blocks, entityMap) {\n // TODO: remove this when we completely deprecate the old entity API\n var theBlocks = Array.isArray(blocks) ? blocks : blocks.contentBlocks;\n var blockMap = BlockMapBuilder.createFromArray(theBlocks);\n var selectionState = blockMap.isEmpty() ? new SelectionState() : SelectionState.createEmpty(blockMap.first().getKey());\n return new ContentState({\n blockMap: blockMap,\n entityMap: entityMap || DraftEntity,\n selectionBefore: selectionState,\n selectionAfter: selectionState\n });\n };\n\n ContentState.createFromText = function createFromText(text) {\n var delimiter = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : /\\r\\n?|\\n/g;\n var strings = text.split(delimiter);\n var blocks = strings.map(function (block) {\n block = sanitizeDraftText(block);\n return new ContentBlockNodeRecord({\n key: generateRandomKey(),\n text: block,\n type: 'unstyled',\n characterList: List(Repeat(CharacterMetadata.EMPTY, block.length))\n });\n });\n return ContentState.createFromBlockArray(blocks);\n };\n\n ContentState.fromJS = function fromJS(state) {\n return new ContentState(_objectSpread({}, state, {\n blockMap: OrderedMap(state.blockMap).map(ContentState.createContentBlockFromJS),\n selectionBefore: new SelectionState(state.selectionBefore),\n selectionAfter: new SelectionState(state.selectionAfter)\n }));\n };\n\n ContentState.createContentBlockFromJS = function createContentBlockFromJS(block) {\n var characterList = block.characterList;\n return new ContentBlockNodeRecord(_objectSpread({}, block, {\n data: ImmutableMap(block.data),\n characterList: characterList != null ? List((Array.isArray(characterList) ? characterList : getOwnObjectValues(characterList)).map(function (c) {\n return CharacterMetadata.fromJS(c);\n })) : undefined\n }));\n };\n\n return ContentState;\n}(ContentStateRecord);\n\nmodule.exports = ContentState;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar CharacterMetadata = require(\"./CharacterMetadata\");\n\nvar _require = require(\"immutable\"),\n Map = _require.Map;\n\nvar ContentStateInlineStyle = {\n add: function add(contentState, selectionState, inlineStyle) {\n return modifyInlineStyle(contentState, selectionState, inlineStyle, true);\n },\n remove: function remove(contentState, selectionState, inlineStyle) {\n return modifyInlineStyle(contentState, selectionState, inlineStyle, false);\n }\n};\n\nfunction modifyInlineStyle(contentState, selectionState, inlineStyle, addOrRemove) {\n var blockMap = contentState.getBlockMap();\n var startKey = selectionState.getStartKey();\n var startOffset = selectionState.getStartOffset();\n var endKey = selectionState.getEndKey();\n var endOffset = selectionState.getEndOffset();\n var newBlocks = blockMap.skipUntil(function (_, k) {\n return k === startKey;\n }).takeUntil(function (_, k) {\n return k === endKey;\n }).concat(Map([[endKey, blockMap.get(endKey)]])).map(function (block, blockKey) {\n var sliceStart;\n var sliceEnd;\n\n if (startKey === endKey) {\n sliceStart = startOffset;\n sliceEnd = endOffset;\n } else {\n sliceStart = blockKey === startKey ? startOffset : 0;\n sliceEnd = blockKey === endKey ? endOffset : block.getLength();\n }\n\n var chars = block.getCharacterList();\n var current;\n\n while (sliceStart < sliceEnd) {\n current = chars.get(sliceStart);\n chars = chars.set(sliceStart, addOrRemove ? CharacterMetadata.applyStyle(current, inlineStyle) : CharacterMetadata.removeStyle(current, inlineStyle));\n sliceStart++;\n }\n\n return block.set('characterList', chars);\n });\n return contentState.merge({\n blockMap: blockMap.merge(newBlocks),\n selectionBefore: selectionState,\n selectionAfter: selectionState\n });\n}\n\nmodule.exports = ContentStateInlineStyle;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\nvar UserAgent = require(\"fbjs/lib/UserAgent\");\n\nvar findAncestorOffsetKey = require(\"./findAncestorOffsetKey\");\n\nvar getWindowForNode = require(\"./getWindowForNode\");\n\nvar Immutable = require(\"immutable\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar nullthrows = require(\"fbjs/lib/nullthrows\");\n\nvar Map = Immutable.Map;\n// Heavily based on Prosemirror's DOMObserver https://github.com/ProseMirror/prosemirror-view/blob/master/src/domobserver.js\nvar DOM_OBSERVER_OPTIONS = {\n subtree: true,\n characterData: true,\n childList: true,\n characterDataOldValue: false,\n attributes: false\n}; // IE11 has very broken mutation observers, so we also listen to DOMCharacterDataModified\n\nvar USE_CHAR_DATA = UserAgent.isBrowser('IE <= 11');\n\nvar DOMObserver = /*#__PURE__*/function () {\n function DOMObserver(container) {\n var _this = this;\n\n _defineProperty(this, \"observer\", void 0);\n\n _defineProperty(this, \"container\", void 0);\n\n _defineProperty(this, \"mutations\", void 0);\n\n _defineProperty(this, \"onCharData\", void 0);\n\n this.container = container;\n this.mutations = Map();\n var containerWindow = getWindowForNode(container);\n\n if (containerWindow.MutationObserver && !USE_CHAR_DATA) {\n this.observer = new containerWindow.MutationObserver(function (mutations) {\n return _this.registerMutations(mutations);\n });\n } else {\n this.onCharData = function (e) {\n !(e.target instanceof Node) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Expected target to be an instance of Node') : invariant(false) : void 0;\n\n _this.registerMutation({\n type: 'characterData',\n target: e.target\n });\n };\n }\n }\n\n var _proto = DOMObserver.prototype;\n\n _proto.start = function start() {\n if (this.observer) {\n this.observer.observe(this.container, DOM_OBSERVER_OPTIONS);\n } else {\n /* $FlowFixMe[incompatible-call] (>=0.68.0 site=www,mobile) This event\n * type is not defined by Flow's standard library */\n this.container.addEventListener('DOMCharacterDataModified', this.onCharData);\n }\n };\n\n _proto.stopAndFlushMutations = function stopAndFlushMutations() {\n var observer = this.observer;\n\n if (observer) {\n this.registerMutations(observer.takeRecords());\n observer.disconnect();\n } else {\n /* $FlowFixMe[incompatible-call] (>=0.68.0 site=www,mobile) This event\n * type is not defined by Flow's standard library */\n this.container.removeEventListener('DOMCharacterDataModified', this.onCharData);\n }\n\n var mutations = this.mutations;\n this.mutations = Map();\n return mutations;\n };\n\n _proto.registerMutations = function registerMutations(mutations) {\n for (var i = 0; i < mutations.length; i++) {\n this.registerMutation(mutations[i]);\n }\n };\n\n _proto.getMutationTextContent = function getMutationTextContent(mutation) {\n var type = mutation.type,\n target = mutation.target,\n removedNodes = mutation.removedNodes;\n\n if (type === 'characterData') {\n // When `textContent` is '', there is a race condition that makes\n // getting the offsetKey from the target not possible.\n // These events are also followed by a `childList`, which is the one\n // we are able to retrieve the offsetKey and apply the '' text.\n if (target.textContent !== '') {\n // IE 11 considers the enter keypress that concludes the composition\n // as an input char. This strips that newline character so the draft\n // state does not receive spurious newlines.\n if (USE_CHAR_DATA) {\n return target.textContent.replace('\\n', '');\n }\n\n return target.textContent;\n }\n } else if (type === 'childList') {\n if (removedNodes && removedNodes.length) {\n // `characterData` events won't happen or are ignored when\n // removing the last character of a leaf node, what happens\n // instead is a `childList` event with a `removedNodes` array.\n // For this case the textContent should be '' and\n // `DraftModifier.replaceText` will make sure the content is\n // updated properly.\n return '';\n } else if (target.textContent !== '') {\n // Typing Chinese in an empty block in MS Edge results in a\n // `childList` event with non-empty textContent.\n // See https://github.com/facebook/draft-js/issues/2082\n return target.textContent;\n }\n }\n\n return null;\n };\n\n _proto.registerMutation = function registerMutation(mutation) {\n var textContent = this.getMutationTextContent(mutation);\n\n if (textContent != null) {\n var offsetKey = nullthrows(findAncestorOffsetKey(mutation.target));\n this.mutations = this.mutations.set(offsetKey, textContent);\n }\n };\n\n return DOMObserver;\n}();\n\nmodule.exports = DOMObserver;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar React = require(\"react\");\n\nvar cx = require(\"fbjs/lib/cx\");\n\nvar _require = require(\"immutable\"),\n Map = _require.Map;\n\nvar UL_WRAP = React.createElement(\"ul\", {\n className: cx('public/DraftStyleDefault/ul')\n});\nvar OL_WRAP = React.createElement(\"ol\", {\n className: cx('public/DraftStyleDefault/ol')\n});\nvar PRE_WRAP = React.createElement(\"pre\", {\n className: cx('public/DraftStyleDefault/pre')\n});\nvar DefaultDraftBlockRenderMap = Map({\n 'header-one': {\n element: 'h1'\n },\n 'header-two': {\n element: 'h2'\n },\n 'header-three': {\n element: 'h3'\n },\n 'header-four': {\n element: 'h4'\n },\n 'header-five': {\n element: 'h5'\n },\n 'header-six': {\n element: 'h6'\n },\n section: {\n element: 'section'\n },\n article: {\n element: 'article'\n },\n 'unordered-list-item': {\n element: 'li',\n wrapper: UL_WRAP\n },\n 'ordered-list-item': {\n element: 'li',\n wrapper: OL_WRAP\n },\n blockquote: {\n element: 'blockquote'\n },\n atomic: {\n element: 'figure'\n },\n 'code-block': {\n element: 'pre',\n wrapper: PRE_WRAP\n },\n unstyled: {\n element: 'div',\n aliasedElements: ['p']\n }\n});\nmodule.exports = DefaultDraftBlockRenderMap;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nmodule.exports = {\n BOLD: {\n fontWeight: 'bold'\n },\n CODE: {\n fontFamily: 'monospace',\n wordWrap: 'break-word'\n },\n ITALIC: {\n fontStyle: 'italic'\n },\n STRIKETHROUGH: {\n textDecoration: 'line-through'\n },\n UNDERLINE: {\n textDecoration: 'underline'\n }\n};","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n */\n'use strict';\n\nvar AtomicBlockUtils = require(\"./AtomicBlockUtils\");\n\nvar BlockMapBuilder = require(\"./BlockMapBuilder\");\n\nvar CharacterMetadata = require(\"./CharacterMetadata\");\n\nvar CompositeDraftDecorator = require(\"./CompositeDraftDecorator\");\n\nvar ContentBlock = require(\"./ContentBlock\");\n\nvar ContentState = require(\"./ContentState\");\n\nvar DefaultDraftBlockRenderMap = require(\"./DefaultDraftBlockRenderMap\");\n\nvar DefaultDraftInlineStyle = require(\"./DefaultDraftInlineStyle\");\n\nvar DraftEditor = require(\"./DraftEditor.react\");\n\nvar DraftEditorBlock = require(\"./DraftEditorBlock.react\");\n\nvar DraftEntity = require(\"./DraftEntity\");\n\nvar DraftModifier = require(\"./DraftModifier\");\n\nvar DraftEntityInstance = require(\"./DraftEntityInstance\");\n\nvar EditorState = require(\"./EditorState\");\n\nvar KeyBindingUtil = require(\"./KeyBindingUtil\");\n\nvar RawDraftContentState = require(\"./RawDraftContentState\");\n\nvar RichTextEditorUtil = require(\"./RichTextEditorUtil\");\n\nvar SelectionState = require(\"./SelectionState\");\n\nvar convertFromDraftStateToRaw = require(\"./convertFromDraftStateToRaw\");\n\nvar convertFromRawToDraftState = require(\"./convertFromRawToDraftState\");\n\nvar generateRandomKey = require(\"./generateRandomKey\");\n\nvar getDefaultKeyBinding = require(\"./getDefaultKeyBinding\");\n\nvar getVisibleSelectionRect = require(\"./getVisibleSelectionRect\");\n\nvar convertFromHTML = require(\"./convertFromHTMLToContentBlocks\");\n\nvar DraftPublic = {\n Editor: DraftEditor,\n EditorBlock: DraftEditorBlock,\n EditorState: EditorState,\n CompositeDecorator: CompositeDraftDecorator,\n Entity: DraftEntity,\n EntityInstance: DraftEntityInstance,\n BlockMapBuilder: BlockMapBuilder,\n CharacterMetadata: CharacterMetadata,\n ContentBlock: ContentBlock,\n ContentState: ContentState,\n RawDraftContentState: RawDraftContentState,\n SelectionState: SelectionState,\n AtomicBlockUtils: AtomicBlockUtils,\n KeyBindingUtil: KeyBindingUtil,\n Modifier: DraftModifier,\n RichUtils: RichTextEditorUtil,\n DefaultDraftBlockRenderMap: DefaultDraftBlockRenderMap,\n DefaultDraftInlineStyle: DefaultDraftInlineStyle,\n convertFromHTML: convertFromHTML,\n convertFromRaw: convertFromRawToDraftState,\n convertToRaw: convertFromDraftStateToRaw,\n genKey: generateRandomKey,\n getDefaultKeyBinding: getDefaultKeyBinding,\n getVisibleSelectionRect: getVisibleSelectionRect\n};\nmodule.exports = DraftPublic;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @preventMunge\n * @emails oncall+draft_js\n */\n'use strict';\n\nvar _assign = require(\"object-assign\");\n\nfunction _extends() { _extends = _assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }\n\nfunction _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }\n\nfunction _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return self; }\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\nfunction _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\nvar DefaultDraftBlockRenderMap = require(\"./DefaultDraftBlockRenderMap\");\n\nvar DefaultDraftInlineStyle = require(\"./DefaultDraftInlineStyle\");\n\nvar DraftEditorCompositionHandler = require(\"./DraftEditorCompositionHandler\");\n\nvar DraftEditorContents = require(\"./DraftEditorContents.react\");\n\nvar DraftEditorDragHandler = require(\"./DraftEditorDragHandler\");\n\nvar DraftEditorEditHandler = require(\"./DraftEditorEditHandler\");\n\nvar flushControlled = require(\"./DraftEditorFlushControlled\");\n\nvar DraftEditorPlaceholder = require(\"./DraftEditorPlaceholder.react\");\n\nvar DraftEffects = require(\"./DraftEffects\");\n\nvar EditorState = require(\"./EditorState\");\n\nvar React = require(\"react\");\n\nvar Scroll = require(\"fbjs/lib/Scroll\");\n\nvar Style = require(\"fbjs/lib/Style\");\n\nvar UserAgent = require(\"fbjs/lib/UserAgent\");\n\nvar cx = require(\"fbjs/lib/cx\");\n\nvar generateRandomKey = require(\"./generateRandomKey\");\n\nvar getDefaultKeyBinding = require(\"./getDefaultKeyBinding\");\n\nvar getScrollPosition = require(\"fbjs/lib/getScrollPosition\");\n\nvar gkx = require(\"./gkx\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar isHTMLElement = require(\"./isHTMLElement\");\n\nvar nullthrows = require(\"fbjs/lib/nullthrows\");\n\nvar isIE = UserAgent.isBrowser('IE'); // IE does not support the `input` event on contentEditable, so we can't\n// observe spellcheck behavior.\n\nvar allowSpellCheck = !isIE; // Define a set of handler objects to correspond to each possible `mode`\n// of editor behavior.\n\nvar handlerMap = {\n edit: DraftEditorEditHandler,\n composite: DraftEditorCompositionHandler,\n drag: DraftEditorDragHandler,\n cut: null,\n render: null\n};\nvar didInitODS = false;\n\nvar UpdateDraftEditorFlags = /*#__PURE__*/function (_React$Component) {\n _inheritsLoose(UpdateDraftEditorFlags, _React$Component);\n\n function UpdateDraftEditorFlags() {\n return _React$Component.apply(this, arguments) || this;\n }\n\n var _proto = UpdateDraftEditorFlags.prototype;\n\n _proto.render = function render() {\n return null;\n };\n\n _proto.componentDidMount = function componentDidMount() {\n this._update();\n };\n\n _proto.componentDidUpdate = function componentDidUpdate() {\n this._update();\n };\n\n _proto._update = function _update() {\n var editor = this.props.editor;\n /**\n * Sometimes a render triggers a 'focus' or other event, and that will\n * schedule a second render pass.\n * In order to make sure the second render pass gets the latest editor\n * state, we update it here.\n * Example:\n * render #1\n * +\n * |\n * | cWU -> Nothing ... latestEditorState = STALE_STATE :(\n * |\n * | render -> this.props.editorState = FRESH_STATE\n * | + *and* set latestEditorState = FRESH_STATE\n * |\n * | |\n * | +--> triggers 'focus' event, calling 'handleFocus' with latestEditorState\n * | +\n * | |\n * +>cdU -> latestEditorState = FRESH_STATE | the 'handleFocus' call schedules render #2\n * | with latestEditorState, which is FRESH_STATE\n * |\n * render #2 <--------------------------------------+\n * +\n * |\n * | cwU -> nothing updates\n * |\n * | render -> this.props.editorState = FRESH_STATE which was passed in above\n * |\n * +>cdU fires and resets latestEditorState = FRESH_STATE\n * ---\n * Note that if we don't set latestEditorState in 'render' in the above\n * diagram, then STALE_STATE gets passed to render #2.\n */\n\n editor._latestEditorState = this.props.editorState;\n /**\n * The reason we set this 'blockSelectEvents' flag is that IE will fire a\n * 'selectionChange' event when we programmatically change the selection,\n * meaning it would trigger a new select event while we are in the middle\n * of updating.\n * We found that the 'selection.addRange' was what triggered the stray\n * selectionchange event in IE.\n * To be clear - we have not been able to reproduce specific bugs related\n * to this stray selection event, but have recorded logs that some\n * conditions do cause it to get bumped into during editOnSelect.\n */\n\n editor._blockSelectEvents = true;\n };\n\n return UpdateDraftEditorFlags;\n}(React.Component);\n/**\n * `DraftEditor` is the root editor component. It composes a `contentEditable`\n * div, and provides a wide variety of useful function props for managing the\n * state of the editor. See `DraftEditorProps` for details.\n */\n\n\nvar DraftEditor = /*#__PURE__*/function (_React$Component2) {\n _inheritsLoose(DraftEditor, _React$Component2);\n\n /**\n * Define proxies that can route events to the current handler.\n */\n function DraftEditor(props) {\n var _this;\n\n _this = _React$Component2.call(this, props) || this;\n\n _defineProperty(_assertThisInitialized(_this), \"_blockSelectEvents\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_clipboard\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_handler\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_dragCount\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_internalDrag\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_editorKey\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_placeholderAccessibilityID\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_latestEditorState\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_latestCommittedEditorState\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_pendingStateFromBeforeInput\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_onBeforeInput\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_onBlur\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_onCharacterData\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_onCompositionEnd\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_onCompositionStart\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_onCopy\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_onCut\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_onDragEnd\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_onDragOver\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_onDragStart\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_onDrop\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_onInput\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_onFocus\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_onKeyDown\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_onKeyPress\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_onKeyUp\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_onMouseDown\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_onMouseUp\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_onPaste\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_onSelect\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"editor\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"editorContainer\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"focus\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"blur\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"setMode\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"exitCurrentMode\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"restoreEditorDOM\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"setClipboard\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"getClipboard\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"getEditorKey\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"update\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"onDragEnter\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"onDragLeave\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_handleEditorContainerRef\", function (node) {\n _this.editorContainer = node; // Instead of having a direct ref on the child, we'll grab it here.\n // This is safe as long as the rendered structure is static (which it is).\n // This lets the child support ref={props.editorRef} without merging refs.\n\n _this.editor = node !== null ? node.firstChild : null;\n });\n\n _defineProperty(_assertThisInitialized(_this), \"focus\", function (scrollPosition) {\n var editorState = _this.props.editorState;\n var alreadyHasFocus = editorState.getSelection().getHasFocus();\n var editorNode = _this.editor;\n\n if (!editorNode) {\n // once in a while people call 'focus' in a setTimeout, and the node has\n // been deleted, so it can be null in that case.\n return;\n }\n\n var scrollParent = Style.getScrollParent(editorNode);\n\n var _ref = scrollPosition || getScrollPosition(scrollParent),\n x = _ref.x,\n y = _ref.y;\n\n !isHTMLElement(editorNode) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'editorNode is not an HTMLElement') : invariant(false) : void 0;\n editorNode.focus(); // Restore scroll position\n\n if (scrollParent === window) {\n window.scrollTo(x, y);\n } else {\n Scroll.setTop(scrollParent, y);\n } // On Chrome and Safari, calling focus on contenteditable focuses the\n // cursor at the first character. This is something you don't expect when\n // you're clicking on an input element but not directly on a character.\n // Put the cursor back where it was before the blur.\n\n\n if (!alreadyHasFocus) {\n _this.update(EditorState.forceSelection(editorState, editorState.getSelection()));\n }\n });\n\n _defineProperty(_assertThisInitialized(_this), \"blur\", function () {\n var editorNode = _this.editor;\n\n if (!editorNode) {\n return;\n }\n\n !isHTMLElement(editorNode) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'editorNode is not an HTMLElement') : invariant(false) : void 0;\n editorNode.blur();\n });\n\n _defineProperty(_assertThisInitialized(_this), \"setMode\", function (mode) {\n var _this$props = _this.props,\n onPaste = _this$props.onPaste,\n onCut = _this$props.onCut,\n onCopy = _this$props.onCopy;\n\n var editHandler = _objectSpread({}, handlerMap.edit);\n\n if (onPaste) {\n /* $FlowFixMe[incompatible-type] (>=0.117.0 site=www,mobile) This comment\n * suppresses an error found when Flow v0.117 was deployed. To see the\n * error delete this comment and run Flow. */\n editHandler.onPaste = onPaste;\n }\n\n if (onCut) {\n editHandler.onCut = onCut;\n }\n\n if (onCopy) {\n editHandler.onCopy = onCopy;\n }\n\n var handler = _objectSpread({}, handlerMap, {\n edit: editHandler\n });\n\n _this._handler = handler[mode];\n });\n\n _defineProperty(_assertThisInitialized(_this), \"exitCurrentMode\", function () {\n _this.setMode('edit');\n });\n\n _defineProperty(_assertThisInitialized(_this), \"restoreEditorDOM\", function (scrollPosition) {\n _this.setState({\n contentsKey: _this.state.contentsKey + 1\n }, function () {\n _this.focus(scrollPosition);\n });\n });\n\n _defineProperty(_assertThisInitialized(_this), \"setClipboard\", function (clipboard) {\n _this._clipboard = clipboard;\n });\n\n _defineProperty(_assertThisInitialized(_this), \"getClipboard\", function () {\n return _this._clipboard;\n });\n\n _defineProperty(_assertThisInitialized(_this), \"update\", function (editorState) {\n _this._latestEditorState = editorState;\n\n _this.props.onChange(editorState);\n });\n\n _defineProperty(_assertThisInitialized(_this), \"onDragEnter\", function () {\n _this._dragCount++;\n });\n\n _defineProperty(_assertThisInitialized(_this), \"onDragLeave\", function () {\n _this._dragCount--;\n\n if (_this._dragCount === 0) {\n _this.exitCurrentMode();\n }\n });\n\n _this._blockSelectEvents = false;\n _this._clipboard = null;\n _this._handler = null;\n _this._dragCount = 0;\n _this._editorKey = props.editorKey || generateRandomKey();\n _this._placeholderAccessibilityID = 'placeholder-' + _this._editorKey;\n _this._latestEditorState = props.editorState;\n _this._latestCommittedEditorState = props.editorState;\n _this._onBeforeInput = _this._buildHandler('onBeforeInput');\n _this._onBlur = _this._buildHandler('onBlur');\n _this._onCharacterData = _this._buildHandler('onCharacterData');\n _this._onCompositionEnd = _this._buildHandler('onCompositionEnd');\n _this._onCompositionStart = _this._buildHandler('onCompositionStart');\n _this._onCopy = _this._buildHandler('onCopy');\n _this._onCut = _this._buildHandler('onCut');\n _this._onDragEnd = _this._buildHandler('onDragEnd');\n _this._onDragOver = _this._buildHandler('onDragOver');\n _this._onDragStart = _this._buildHandler('onDragStart');\n _this._onDrop = _this._buildHandler('onDrop');\n _this._onInput = _this._buildHandler('onInput');\n _this._onFocus = _this._buildHandler('onFocus');\n _this._onKeyDown = _this._buildHandler('onKeyDown');\n _this._onKeyPress = _this._buildHandler('onKeyPress');\n _this._onKeyUp = _this._buildHandler('onKeyUp');\n _this._onMouseDown = _this._buildHandler('onMouseDown');\n _this._onMouseUp = _this._buildHandler('onMouseUp');\n _this._onPaste = _this._buildHandler('onPaste');\n _this._onSelect = _this._buildHandler('onSelect');\n\n _this.getEditorKey = function () {\n return _this._editorKey;\n };\n\n if (process.env.NODE_ENV !== \"production\") {\n ['onDownArrow', 'onEscape', 'onLeftArrow', 'onRightArrow', 'onTab', 'onUpArrow'].forEach(function (propName) {\n if (props.hasOwnProperty(propName)) {\n // eslint-disable-next-line no-console\n console.warn(\"Supplying an `\".concat(propName, \"` prop to `DraftEditor` has \") + 'been deprecated. If your handler needs access to the keyboard ' + 'event, supply a custom `keyBindingFn` prop that falls back to ' + 'the default one (eg. https://is.gd/wHKQ3W).');\n }\n });\n } // See `restoreEditorDOM()`.\n\n\n _this.state = {\n contentsKey: 0\n };\n return _this;\n }\n /**\n * Build a method that will pass the event to the specified handler method.\n * This allows us to look up the correct handler function for the current\n * editor mode, if any has been specified.\n */\n\n\n var _proto2 = DraftEditor.prototype;\n\n _proto2._buildHandler = function _buildHandler(eventName) {\n var _this2 = this;\n\n // Wrap event handlers in `flushControlled`. In sync mode, this is\n // effectively a no-op. In async mode, this ensures all updates scheduled\n // inside the handler are flushed before React yields to the browser.\n return function (e) {\n if (!_this2.props.readOnly) {\n var method = _this2._handler && _this2._handler[eventName];\n\n if (method) {\n if (flushControlled) {\n flushControlled(function () {\n return method(_this2, e);\n });\n } else {\n method(_this2, e);\n }\n }\n }\n };\n };\n\n _proto2._showPlaceholder = function _showPlaceholder() {\n return !!this.props.placeholder && !this.props.editorState.isInCompositionMode() && !this.props.editorState.getCurrentContent().hasText();\n };\n\n _proto2._renderPlaceholder = function _renderPlaceholder() {\n if (this._showPlaceholder()) {\n var placeHolderProps = {\n text: nullthrows(this.props.placeholder),\n editorState: this.props.editorState,\n textAlignment: this.props.textAlignment,\n accessibilityID: this._placeholderAccessibilityID\n };\n /* $FlowFixMe[incompatible-type] (>=0.112.0 site=www,mobile) This comment\n * suppresses an error found when Flow v0.112 was deployed. To see the\n * error delete this comment and run Flow. */\n\n return React.createElement(DraftEditorPlaceholder, placeHolderProps);\n }\n\n return null;\n }\n /**\n * returns ariaDescribedBy prop with '{{editor_id_placeholder}}' replaced with\n * the DOM id of the placeholder (if it exists)\n * @returns aria-describedby attribute value\n */\n ;\n\n _proto2._renderARIADescribedBy = function _renderARIADescribedBy() {\n var describedBy = this.props.ariaDescribedBy || '';\n var placeholderID = this._showPlaceholder() ? this._placeholderAccessibilityID : '';\n return describedBy.replace('{{editor_id_placeholder}}', placeholderID) || undefined;\n };\n\n _proto2.render = function render() {\n var _this$props2 = this.props,\n blockRenderMap = _this$props2.blockRenderMap,\n blockRendererFn = _this$props2.blockRendererFn,\n blockStyleFn = _this$props2.blockStyleFn,\n customStyleFn = _this$props2.customStyleFn,\n customStyleMap = _this$props2.customStyleMap,\n editorState = _this$props2.editorState,\n preventScroll = _this$props2.preventScroll,\n readOnly = _this$props2.readOnly,\n textAlignment = _this$props2.textAlignment,\n textDirectionality = _this$props2.textDirectionality;\n var rootClass = cx({\n 'DraftEditor/root': true,\n 'DraftEditor/alignLeft': textAlignment === 'left',\n 'DraftEditor/alignRight': textAlignment === 'right',\n 'DraftEditor/alignCenter': textAlignment === 'center'\n });\n var contentStyle = {\n outline: 'none',\n // fix parent-draggable Safari bug. #1326\n userSelect: 'text',\n WebkitUserSelect: 'text',\n whiteSpace: 'pre-wrap',\n wordWrap: 'break-word'\n }; // The aria-expanded and aria-haspopup properties should only be rendered\n // for a combobox.\n\n /* $FlowFixMe[prop-missing] (>=0.68.0 site=www,mobile) This comment\n * suppresses an error found when Flow v0.68 was deployed. To see the error\n * delete this comment and run Flow. */\n\n var ariaRole = this.props.role || 'textbox';\n var ariaExpanded = ariaRole === 'combobox' ? !!this.props.ariaExpanded : null;\n var editorContentsProps = {\n blockRenderMap: blockRenderMap,\n blockRendererFn: blockRendererFn,\n blockStyleFn: blockStyleFn,\n customStyleMap: _objectSpread({}, DefaultDraftInlineStyle, customStyleMap),\n customStyleFn: customStyleFn,\n editorKey: this._editorKey,\n editorState: editorState,\n preventScroll: preventScroll,\n textDirectionality: textDirectionality\n };\n return React.createElement(\"div\", {\n className: rootClass\n }, this._renderPlaceholder(), React.createElement(\"div\", {\n className: cx('DraftEditor/editorContainer'),\n ref: this._handleEditorContainerRef\n }, React.createElement(\"div\", {\n \"aria-activedescendant\": readOnly ? null : this.props.ariaActiveDescendantID,\n \"aria-autocomplete\": readOnly ? null : this.props.ariaAutoComplete,\n \"aria-controls\": readOnly ? null : this.props.ariaControls,\n \"aria-describedby\": this._renderARIADescribedBy(),\n \"aria-expanded\": readOnly ? null : ariaExpanded,\n \"aria-label\": this.props.ariaLabel,\n \"aria-labelledby\": this.props.ariaLabelledBy,\n \"aria-multiline\": this.props.ariaMultiline,\n \"aria-owns\": readOnly ? null : this.props.ariaOwneeID,\n autoCapitalize: this.props.autoCapitalize,\n autoComplete: this.props.autoComplete,\n autoCorrect: this.props.autoCorrect,\n className: cx({\n // Chrome's built-in translation feature mutates the DOM in ways\n // that Draft doesn't expect (ex: adding tags inside\n // DraftEditorLeaf spans) and causes problems. We add notranslate\n // here which makes its autotranslation skip over this subtree.\n notranslate: !readOnly,\n 'public/DraftEditor/content': true\n }),\n contentEditable: !readOnly,\n \"data-testid\": this.props.webDriverTestID,\n onBeforeInput: this._onBeforeInput,\n onBlur: this._onBlur,\n onCompositionEnd: this._onCompositionEnd,\n onCompositionStart: this._onCompositionStart,\n onCopy: this._onCopy,\n onCut: this._onCut,\n onDragEnd: this._onDragEnd,\n onDragEnter: this.onDragEnter,\n onDragLeave: this.onDragLeave,\n onDragOver: this._onDragOver,\n onDragStart: this._onDragStart,\n onDrop: this._onDrop,\n onFocus: this._onFocus,\n onInput: this._onInput,\n onKeyDown: this._onKeyDown,\n onKeyPress: this._onKeyPress,\n onKeyUp: this._onKeyUp,\n onMouseUp: this._onMouseUp,\n onPaste: this._onPaste,\n onSelect: this._onSelect,\n ref: this.props.editorRef,\n role: readOnly ? null : ariaRole,\n spellCheck: allowSpellCheck && this.props.spellCheck,\n style: contentStyle,\n suppressContentEditableWarning: true,\n tabIndex: this.props.tabIndex\n }, React.createElement(UpdateDraftEditorFlags, {\n editor: this,\n editorState: editorState\n }), React.createElement(DraftEditorContents, _extends({}, editorContentsProps, {\n key: 'contents' + this.state.contentsKey\n })))));\n };\n\n _proto2.componentDidMount = function componentDidMount() {\n this._blockSelectEvents = false;\n\n if (!didInitODS && gkx('draft_ods_enabled')) {\n didInitODS = true;\n DraftEffects.initODS();\n }\n\n this.setMode('edit');\n /**\n * IE has a hardcoded \"feature\" that attempts to convert link text into\n * anchors in contentEditable DOM. This breaks the editor's expectations of\n * the DOM, and control is lost. Disable it to make IE behave.\n * See: http://blogs.msdn.com/b/ieinternals/archive/2010/09/15/\n * ie9-beta-minor-change-list.aspx\n */\n\n if (isIE) {\n // editor can be null after mounting\n // https://stackoverflow.com/questions/44074747/componentdidmount-called-before-ref-callback\n if (!this.editor) {\n global.execCommand('AutoUrlDetect', false, false);\n } else {\n this.editor.ownerDocument.execCommand('AutoUrlDetect', false, false);\n }\n }\n };\n\n _proto2.componentDidUpdate = function componentDidUpdate() {\n this._blockSelectEvents = false;\n this._latestEditorState = this.props.editorState;\n this._latestCommittedEditorState = this.props.editorState;\n }\n /**\n * Used via `this.focus()`.\n *\n * Force focus back onto the editor node.\n *\n * We attempt to preserve scroll position when focusing. You can also pass\n * a specified scroll position (for cases like `cut` behavior where it should\n * be restored to a known position).\n */\n ;\n\n return DraftEditor;\n}(React.Component);\n\n_defineProperty(DraftEditor, \"defaultProps\", {\n ariaDescribedBy: '{{editor_id_placeholder}}',\n blockRenderMap: DefaultDraftBlockRenderMap,\n blockRendererFn: function blockRendererFn() {\n return null;\n },\n blockStyleFn: function blockStyleFn() {\n return '';\n },\n keyBindingFn: getDefaultKeyBinding,\n readOnly: false,\n spellCheck: false,\n stripPastedStyles: false\n});\n\nmodule.exports = DraftEditor;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar _assign = require(\"object-assign\");\n\nfunction _extends() { _extends = _assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }\n\nfunction _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return self; }\n\nfunction _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\nvar DraftEditorLeaf = require(\"./DraftEditorLeaf.react\");\n\nvar DraftOffsetKey = require(\"./DraftOffsetKey\");\n\nvar React = require(\"react\");\n\nvar Scroll = require(\"fbjs/lib/Scroll\");\n\nvar Style = require(\"fbjs/lib/Style\");\n\nvar UnicodeBidi = require(\"fbjs/lib/UnicodeBidi\");\n\nvar UnicodeBidiDirection = require(\"fbjs/lib/UnicodeBidiDirection\");\n\nvar cx = require(\"fbjs/lib/cx\");\n\nvar getElementPosition = require(\"fbjs/lib/getElementPosition\");\n\nvar getScrollPosition = require(\"fbjs/lib/getScrollPosition\");\n\nvar getViewportDimensions = require(\"fbjs/lib/getViewportDimensions\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar isHTMLElement = require(\"./isHTMLElement\");\n\nvar nullthrows = require(\"fbjs/lib/nullthrows\");\n\nvar SCROLL_BUFFER = 10;\n\n/**\n * Return whether a block overlaps with either edge of the `SelectionState`.\n */\nvar isBlockOnSelectionEdge = function isBlockOnSelectionEdge(selection, key) {\n return selection.getAnchorKey() === key || selection.getFocusKey() === key;\n};\n/**\n * The default block renderer for a `DraftEditor` component.\n *\n * A `DraftEditorBlock` is able to render a given `ContentBlock` to its\n * appropriate decorator and inline style components.\n */\n\n\nvar DraftEditorBlock = /*#__PURE__*/function (_React$Component) {\n _inheritsLoose(DraftEditorBlock, _React$Component);\n\n function DraftEditorBlock() {\n var _this;\n\n for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {\n args[_key] = arguments[_key];\n }\n\n _this = _React$Component.call.apply(_React$Component, [this].concat(args)) || this;\n\n _defineProperty(_assertThisInitialized(_this), \"_node\", void 0);\n\n return _this;\n }\n\n var _proto = DraftEditorBlock.prototype;\n\n _proto.shouldComponentUpdate = function shouldComponentUpdate(nextProps) {\n return this.props.block !== nextProps.block || this.props.tree !== nextProps.tree || this.props.direction !== nextProps.direction || isBlockOnSelectionEdge(nextProps.selection, nextProps.block.getKey()) && nextProps.forceSelection;\n }\n /**\n * When a block is mounted and overlaps the selection state, we need to make\n * sure that the cursor is visible to match native behavior. This may not\n * be the case if the user has pressed `RETURN` or pasted some content, since\n * programmatically creating these new blocks and setting the DOM selection\n * will miss out on the browser natively scrolling to that position.\n *\n * To replicate native behavior, if the block overlaps the selection state\n * on mount, force the scroll position. Check the scroll state of the scroll\n * parent, and adjust it to align the entire block to the bottom of the\n * scroll parent.\n */\n ;\n\n _proto.componentDidMount = function componentDidMount() {\n if (this.props.preventScroll) {\n return;\n }\n\n var selection = this.props.selection;\n var endKey = selection.getEndKey();\n\n if (!selection.getHasFocus() || endKey !== this.props.block.getKey()) {\n return;\n }\n\n var blockNode = this._node;\n\n if (blockNode == null) {\n return;\n }\n\n var scrollParent = Style.getScrollParent(blockNode);\n var scrollPosition = getScrollPosition(scrollParent);\n var scrollDelta;\n\n if (scrollParent === window) {\n var nodePosition = getElementPosition(blockNode);\n var nodeBottom = nodePosition.y + nodePosition.height;\n var viewportHeight = getViewportDimensions().height;\n scrollDelta = nodeBottom - viewportHeight;\n\n if (scrollDelta > 0) {\n window.scrollTo(scrollPosition.x, scrollPosition.y + scrollDelta + SCROLL_BUFFER);\n }\n } else {\n !isHTMLElement(blockNode) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'blockNode is not an HTMLElement') : invariant(false) : void 0;\n var blockBottom = blockNode.offsetHeight + blockNode.offsetTop;\n var pOffset = scrollParent.offsetTop + scrollParent.offsetHeight;\n var scrollBottom = pOffset + scrollPosition.y;\n scrollDelta = blockBottom - scrollBottom;\n\n if (scrollDelta > 0) {\n Scroll.setTop(scrollParent, Scroll.getTop(scrollParent) + scrollDelta + SCROLL_BUFFER);\n }\n }\n };\n\n _proto._renderChildren = function _renderChildren() {\n var _this2 = this;\n\n var block = this.props.block;\n var blockKey = block.getKey();\n var text = block.getText();\n var lastLeafSet = this.props.tree.size - 1;\n var hasSelection = isBlockOnSelectionEdge(this.props.selection, blockKey);\n return this.props.tree.map(function (leafSet, ii) {\n var leavesForLeafSet = leafSet.get('leaves'); // T44088704\n\n if (leavesForLeafSet.size === 0) {\n return null;\n }\n\n var lastLeaf = leavesForLeafSet.size - 1;\n var leaves = leavesForLeafSet.map(function (leaf, jj) {\n var offsetKey = DraftOffsetKey.encode(blockKey, ii, jj);\n var start = leaf.get('start');\n var end = leaf.get('end');\n return React.createElement(DraftEditorLeaf, {\n key: offsetKey,\n offsetKey: offsetKey,\n block: block,\n start: start,\n selection: hasSelection ? _this2.props.selection : null,\n forceSelection: _this2.props.forceSelection,\n text: text.slice(start, end),\n styleSet: block.getInlineStyleAt(start),\n customStyleMap: _this2.props.customStyleMap,\n customStyleFn: _this2.props.customStyleFn,\n isLast: ii === lastLeafSet && jj === lastLeaf\n });\n }).toArray();\n var decoratorKey = leafSet.get('decoratorKey');\n\n if (decoratorKey == null) {\n return leaves;\n }\n\n if (!_this2.props.decorator) {\n return leaves;\n }\n\n var decorator = nullthrows(_this2.props.decorator);\n var DecoratorComponent = decorator.getComponentForKey(decoratorKey);\n\n if (!DecoratorComponent) {\n return leaves;\n }\n\n var decoratorProps = decorator.getPropsForKey(decoratorKey);\n var decoratorOffsetKey = DraftOffsetKey.encode(blockKey, ii, 0);\n var start = leavesForLeafSet.first().get('start');\n var end = leavesForLeafSet.last().get('end');\n var decoratedText = text.slice(start, end);\n var entityKey = block.getEntityAt(leafSet.get('start')); // Resetting dir to the same value on a child node makes Chrome/Firefox\n // confused on cursor movement. See http://jsfiddle.net/d157kLck/3/\n\n var dir = UnicodeBidiDirection.getHTMLDirIfDifferent(UnicodeBidi.getDirection(decoratedText), _this2.props.direction);\n var commonProps = {\n contentState: _this2.props.contentState,\n decoratedText: decoratedText,\n dir: dir,\n start: start,\n end: end,\n blockKey: blockKey,\n entityKey: entityKey,\n offsetKey: decoratorOffsetKey\n };\n return React.createElement(DecoratorComponent, _extends({}, decoratorProps, commonProps, {\n key: decoratorOffsetKey\n }), leaves);\n }).toArray();\n };\n\n _proto.render = function render() {\n var _this3 = this;\n\n var _this$props = this.props,\n direction = _this$props.direction,\n offsetKey = _this$props.offsetKey;\n var className = cx({\n 'public/DraftStyleDefault/block': true,\n 'public/DraftStyleDefault/ltr': direction === 'LTR',\n 'public/DraftStyleDefault/rtl': direction === 'RTL'\n });\n return React.createElement(\"div\", {\n \"data-offset-key\": offsetKey,\n className: className,\n ref: function ref(_ref) {\n return _this3._node = _ref;\n }\n }, this._renderChildren());\n };\n\n return DraftEditorBlock;\n}(React.Component);\n\nmodule.exports = DraftEditorBlock;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n *\n * This file is a fork of DraftEditorBlock.react.js and DraftEditorContents.react.js\n *\n * This is unstable and not part of the public API and should not be used by\n * production systems. This file may be update/removed without notice.\n */\n'use strict';\n\nvar _assign = require(\"object-assign\");\n\nfunction _extends() { _extends = _assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }\n\nfunction _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return self; }\n\nfunction _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\nfunction _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\nvar DraftEditorNode = require(\"./DraftEditorNode.react\");\n\nvar DraftOffsetKey = require(\"./DraftOffsetKey\");\n\nvar React = require(\"react\");\n\nvar Scroll = require(\"fbjs/lib/Scroll\");\n\nvar Style = require(\"fbjs/lib/Style\");\n\nvar getElementPosition = require(\"fbjs/lib/getElementPosition\");\n\nvar getScrollPosition = require(\"fbjs/lib/getScrollPosition\");\n\nvar getViewportDimensions = require(\"fbjs/lib/getViewportDimensions\");\n\nvar Immutable = require(\"immutable\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar isHTMLElement = require(\"./isHTMLElement\");\n\nvar SCROLL_BUFFER = 10;\nvar List = Immutable.List; // we should harden up the bellow flow types to make them more strict\n\n/**\n * Return whether a block overlaps with either edge of the `SelectionState`.\n */\nvar isBlockOnSelectionEdge = function isBlockOnSelectionEdge(selection, key) {\n return selection.getAnchorKey() === key || selection.getFocusKey() === key;\n};\n/**\n * We will use this helper to identify blocks that need to be wrapped but have siblings that\n * also share the same wrapper element, this way we can do the wrapping once the last sibling\n * is added.\n */\n\n\nvar shouldNotAddWrapperElement = function shouldNotAddWrapperElement(block, contentState) {\n var nextSiblingKey = block.getNextSiblingKey();\n return nextSiblingKey ? contentState.getBlockForKey(nextSiblingKey).getType() === block.getType() : false;\n};\n\nvar applyWrapperElementToSiblings = function applyWrapperElementToSiblings(wrapperTemplate, Element, nodes) {\n var wrappedSiblings = []; // we check back until we find a sibling that does not have same wrapper\n\n var _iteratorNormalCompletion = true;\n var _didIteratorError = false;\n var _iteratorError = undefined;\n\n try {\n for (var _iterator = nodes.reverse()[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {\n var sibling = _step.value;\n\n if (sibling.type !== Element) {\n break;\n }\n\n wrappedSiblings.push(sibling);\n } // we now should remove from acc the wrappedSiblings and add them back under same wrap\n\n } catch (err) {\n _didIteratorError = true;\n _iteratorError = err;\n } finally {\n try {\n if (!_iteratorNormalCompletion && _iterator[\"return\"] != null) {\n _iterator[\"return\"]();\n }\n } finally {\n if (_didIteratorError) {\n throw _iteratorError;\n }\n }\n }\n\n nodes.splice(nodes.indexOf(wrappedSiblings[0]), wrappedSiblings.length + 1);\n var childrenIs = wrappedSiblings.reverse();\n var key = childrenIs[0].key;\n nodes.push(React.cloneElement(wrapperTemplate, {\n key: \"\".concat(key, \"-wrap\"),\n 'data-offset-key': DraftOffsetKey.encode(key, 0, 0)\n }, childrenIs));\n return nodes;\n};\n\nvar getDraftRenderConfig = function getDraftRenderConfig(block, blockRenderMap) {\n var configForType = blockRenderMap.get(block.getType()) || blockRenderMap.get('unstyled');\n var wrapperTemplate = configForType.wrapper;\n var Element = configForType.element || blockRenderMap.get('unstyled').element;\n return {\n Element: Element,\n wrapperTemplate: wrapperTemplate\n };\n};\n\nvar getCustomRenderConfig = function getCustomRenderConfig(block, blockRendererFn) {\n var customRenderer = blockRendererFn(block);\n\n if (!customRenderer) {\n return {};\n }\n\n var CustomComponent = customRenderer.component,\n customProps = customRenderer.props,\n customEditable = customRenderer.editable;\n return {\n CustomComponent: CustomComponent,\n customProps: customProps,\n customEditable: customEditable\n };\n};\n\nvar getElementPropsConfig = function getElementPropsConfig(block, editorKey, offsetKey, blockStyleFn, customConfig, ref) {\n var elementProps = {\n 'data-block': true,\n 'data-editor': editorKey,\n 'data-offset-key': offsetKey,\n key: block.getKey(),\n ref: ref\n };\n var customClass = blockStyleFn(block);\n\n if (customClass) {\n elementProps.className = customClass;\n }\n\n if (customConfig.customEditable !== undefined) {\n elementProps = _objectSpread({}, elementProps, {\n contentEditable: customConfig.customEditable,\n suppressContentEditableWarning: true\n });\n }\n\n return elementProps;\n};\n\nvar DraftEditorBlockNode = /*#__PURE__*/function (_React$Component) {\n _inheritsLoose(DraftEditorBlockNode, _React$Component);\n\n function DraftEditorBlockNode() {\n var _this;\n\n for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {\n args[_key] = arguments[_key];\n }\n\n _this = _React$Component.call.apply(_React$Component, [this].concat(args)) || this;\n\n _defineProperty(_assertThisInitialized(_this), \"wrapperRef\", React.createRef());\n\n return _this;\n }\n\n var _proto = DraftEditorBlockNode.prototype;\n\n _proto.shouldComponentUpdate = function shouldComponentUpdate(nextProps) {\n var _this$props = this.props,\n block = _this$props.block,\n direction = _this$props.direction,\n tree = _this$props.tree;\n var isContainerNode = !block.getChildKeys().isEmpty();\n var blockHasChanged = block !== nextProps.block || tree !== nextProps.tree || direction !== nextProps.direction || isBlockOnSelectionEdge(nextProps.selection, nextProps.block.getKey()) && nextProps.forceSelection; // if we have children at this stage we always re-render container nodes\n // else if its a root node we avoid re-rendering by checking for block updates\n\n return isContainerNode || blockHasChanged;\n }\n /**\n * When a block is mounted and overlaps the selection state, we need to make\n * sure that the cursor is visible to match native behavior. This may not\n * be the case if the user has pressed `RETURN` or pasted some content, since\n * programatically creating these new blocks and setting the DOM selection\n * will miss out on the browser natively scrolling to that position.\n *\n * To replicate native behavior, if the block overlaps the selection state\n * on mount, force the scroll position. Check the scroll state of the scroll\n * parent, and adjust it to align the entire block to the bottom of the\n * scroll parent.\n */\n ;\n\n _proto.componentDidMount = function componentDidMount() {\n var selection = this.props.selection;\n var endKey = selection.getEndKey();\n\n if (!selection.getHasFocus() || endKey !== this.props.block.getKey()) {\n return;\n }\n\n var blockNode = this.wrapperRef.current;\n\n if (!blockNode) {\n // This Block Node was rendered without a wrapper element.\n return;\n }\n\n var scrollParent = Style.getScrollParent(blockNode);\n var scrollPosition = getScrollPosition(scrollParent);\n var scrollDelta;\n\n if (scrollParent === window) {\n var nodePosition = getElementPosition(blockNode);\n var nodeBottom = nodePosition.y + nodePosition.height;\n var viewportHeight = getViewportDimensions().height;\n scrollDelta = nodeBottom - viewportHeight;\n\n if (scrollDelta > 0) {\n window.scrollTo(scrollPosition.x, scrollPosition.y + scrollDelta + SCROLL_BUFFER);\n }\n } else {\n !isHTMLElement(blockNode) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'blockNode is not an HTMLElement') : invariant(false) : void 0;\n var htmlBlockNode = blockNode;\n var blockBottom = htmlBlockNode.offsetHeight + htmlBlockNode.offsetTop;\n var scrollBottom = scrollParent.offsetHeight + scrollPosition.y;\n scrollDelta = blockBottom - scrollBottom;\n\n if (scrollDelta > 0) {\n Scroll.setTop(scrollParent, Scroll.getTop(scrollParent) + scrollDelta + SCROLL_BUFFER);\n }\n }\n };\n\n _proto.render = function render() {\n var _this2 = this;\n\n var _this$props2 = this.props,\n block = _this$props2.block,\n blockRenderMap = _this$props2.blockRenderMap,\n blockRendererFn = _this$props2.blockRendererFn,\n blockStyleFn = _this$props2.blockStyleFn,\n contentState = _this$props2.contentState,\n decorator = _this$props2.decorator,\n editorKey = _this$props2.editorKey,\n editorState = _this$props2.editorState,\n customStyleFn = _this$props2.customStyleFn,\n customStyleMap = _this$props2.customStyleMap,\n direction = _this$props2.direction,\n forceSelection = _this$props2.forceSelection,\n selection = _this$props2.selection,\n tree = _this$props2.tree;\n var children = null;\n\n if (block.children.size) {\n children = block.children.reduce(function (acc, key) {\n var offsetKey = DraftOffsetKey.encode(key, 0, 0);\n var child = contentState.getBlockForKey(key);\n var customConfig = getCustomRenderConfig(child, blockRendererFn);\n var Component = customConfig.CustomComponent || DraftEditorBlockNode;\n\n var _getDraftRenderConfig = getDraftRenderConfig(child, blockRenderMap),\n Element = _getDraftRenderConfig.Element,\n wrapperTemplate = _getDraftRenderConfig.wrapperTemplate;\n\n var elementProps = getElementPropsConfig(child, editorKey, offsetKey, blockStyleFn, customConfig, null);\n\n var childProps = _objectSpread({}, _this2.props, {\n tree: editorState.getBlockTree(key),\n blockProps: customConfig.customProps,\n offsetKey: offsetKey,\n block: child\n });\n\n acc.push(React.createElement(Element, elementProps, React.createElement(Component, childProps)));\n\n if (!wrapperTemplate || shouldNotAddWrapperElement(child, contentState)) {\n return acc;\n } // if we are here it means we are the last block\n // that has a wrapperTemplate so we should wrap itself\n // and all other previous siblings that share the same wrapper\n\n\n applyWrapperElementToSiblings(wrapperTemplate, Element, acc);\n return acc;\n }, []);\n }\n\n var blockKey = block.getKey();\n var offsetKey = DraftOffsetKey.encode(blockKey, 0, 0);\n var customConfig = getCustomRenderConfig(block, blockRendererFn);\n var Component = customConfig.CustomComponent;\n var blockNode = Component != null ? React.createElement(Component, _extends({}, this.props, {\n tree: editorState.getBlockTree(blockKey),\n blockProps: customConfig.customProps,\n offsetKey: offsetKey,\n block: block\n })) : React.createElement(DraftEditorNode, {\n block: block,\n children: children,\n contentState: contentState,\n customStyleFn: customStyleFn,\n customStyleMap: customStyleMap,\n decorator: decorator,\n direction: direction,\n forceSelection: forceSelection,\n hasSelection: isBlockOnSelectionEdge(selection, blockKey),\n selection: selection,\n tree: tree\n });\n\n if (block.getParentKey()) {\n return blockNode;\n }\n\n var _getDraftRenderConfig2 = getDraftRenderConfig(block, blockRenderMap),\n Element = _getDraftRenderConfig2.Element;\n\n var elementProps = getElementPropsConfig(block, editorKey, offsetKey, blockStyleFn, customConfig, this.wrapperRef); // root block nodes needs to be wrapped\n\n return React.createElement(Element, elementProps, blockNode);\n };\n\n return DraftEditorBlockNode;\n}(React.Component);\n\nmodule.exports = DraftEditorBlockNode;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar DOMObserver = require(\"./DOMObserver\");\n\nvar DraftModifier = require(\"./DraftModifier\");\n\nvar DraftOffsetKey = require(\"./DraftOffsetKey\");\n\nvar EditorState = require(\"./EditorState\");\n\nvar Keys = require(\"fbjs/lib/Keys\");\n\nvar UserAgent = require(\"fbjs/lib/UserAgent\");\n\nvar editOnSelect = require(\"./editOnSelect\");\n\nvar getContentEditableContainer = require(\"./getContentEditableContainer\");\n\nvar getDraftEditorSelection = require(\"./getDraftEditorSelection\");\n\nvar getEntityKeyForSelection = require(\"./getEntityKeyForSelection\");\n\nvar nullthrows = require(\"fbjs/lib/nullthrows\");\n\nvar isIE = UserAgent.isBrowser('IE');\n/**\n * Millisecond delay to allow `compositionstart` to fire again upon\n * `compositionend`.\n *\n * This is used for Korean input to ensure that typing can continue without\n * the editor trying to render too quickly. More specifically, Safari 7.1+\n * triggers `compositionstart` a little slower than Chrome/FF, which\n * leads to composed characters being resolved and re-render occurring\n * sooner than we want.\n */\n\nvar RESOLVE_DELAY = 20;\n/**\n * A handful of variables used to track the current composition and its\n * resolution status. These exist at the module level because it is not\n * possible to have compositions occurring in multiple editors simultaneously,\n * and it simplifies state management with respect to the DraftEditor component.\n */\n\nvar resolved = false;\nvar stillComposing = false;\nvar domObserver = null;\n\nfunction startDOMObserver(editor) {\n if (!domObserver) {\n domObserver = new DOMObserver(getContentEditableContainer(editor));\n domObserver.start();\n }\n}\n\nvar DraftEditorCompositionHandler = {\n /**\n * A `compositionstart` event has fired while we're still in composition\n * mode. Continue the current composition session to prevent a re-render.\n */\n onCompositionStart: function onCompositionStart(editor) {\n stillComposing = true;\n startDOMObserver(editor);\n },\n\n /**\n * Attempt to end the current composition session.\n *\n * Defer handling because browser will still insert the chars into active\n * element after `compositionend`. If a `compositionstart` event fires\n * before `resolveComposition` executes, our composition session will\n * continue.\n *\n * The `resolved` flag is useful because certain IME interfaces fire the\n * `compositionend` event multiple times, thus queueing up multiple attempts\n * at handling the composition. Since handling the same composition event\n * twice could break the DOM, we only use the first event. Example: Arabic\n * Google Input Tools on Windows 8.1 fires `compositionend` three times.\n */\n onCompositionEnd: function onCompositionEnd(editor) {\n resolved = false;\n stillComposing = false;\n setTimeout(function () {\n if (!resolved) {\n DraftEditorCompositionHandler.resolveComposition(editor);\n }\n }, RESOLVE_DELAY);\n },\n onSelect: editOnSelect,\n\n /**\n * In Safari, keydown events may fire when committing compositions. If\n * the arrow keys are used to commit, prevent default so that the cursor\n * doesn't move, otherwise it will jump back noticeably on re-render.\n */\n onKeyDown: function onKeyDown(editor, e) {\n if (!stillComposing) {\n // If a keydown event is received after compositionend but before the\n // 20ms timer expires (ex: type option-E then backspace, or type A then\n // backspace in 2-Set Korean), we should immediately resolve the\n // composition and reinterpret the key press in edit mode.\n DraftEditorCompositionHandler.resolveComposition(editor);\n\n editor._onKeyDown(e);\n\n return;\n }\n\n if (e.which === Keys.RIGHT || e.which === Keys.LEFT) {\n e.preventDefault();\n }\n },\n\n /**\n * Keypress events may fire when committing compositions. In Firefox,\n * pressing RETURN commits the composition and inserts extra newline\n * characters that we do not want. `preventDefault` allows the composition\n * to be committed while preventing the extra characters.\n */\n onKeyPress: function onKeyPress(_editor, e) {\n if (e.which === Keys.RETURN) {\n e.preventDefault();\n }\n },\n\n /**\n * Attempt to insert composed characters into the document.\n *\n * If we are still in a composition session, do nothing. Otherwise, insert\n * the characters into the document and terminate the composition session.\n *\n * If no characters were composed -- for instance, the user\n * deleted all composed characters and committed nothing new --\n * force a re-render. We also re-render when the composition occurs\n * at the beginning of a leaf, to ensure that if the browser has\n * created a new text node for the composition, we will discard it.\n *\n * Resetting innerHTML will move focus to the beginning of the editor,\n * so we update to force it back to the correct place.\n */\n resolveComposition: function resolveComposition(editor) {\n if (stillComposing) {\n return;\n }\n\n var mutations = nullthrows(domObserver).stopAndFlushMutations();\n domObserver = null;\n resolved = true;\n var editorState = EditorState.set(editor._latestEditorState, {\n inCompositionMode: false\n });\n editor.exitCurrentMode();\n\n if (!mutations.size) {\n editor.update(editorState);\n return;\n } // TODO, check if Facebook still needs this flag or if it could be removed.\n // Since there can be multiple mutations providing a `composedChars` doesn't\n // apply well on this new model.\n // if (\n // gkx('draft_handlebeforeinput_composed_text') &&\n // editor.props.handleBeforeInput &&\n // isEventHandled(\n // editor.props.handleBeforeInput(\n // composedChars,\n // editorState,\n // event.timeStamp,\n // ),\n // )\n // ) {\n // return;\n // }\n\n\n var contentState = editorState.getCurrentContent();\n mutations.forEach(function (composedChars, offsetKey) {\n var _DraftOffsetKey$decod = DraftOffsetKey.decode(offsetKey),\n blockKey = _DraftOffsetKey$decod.blockKey,\n decoratorKey = _DraftOffsetKey$decod.decoratorKey,\n leafKey = _DraftOffsetKey$decod.leafKey;\n\n var _editorState$getBlock = editorState.getBlockTree(blockKey).getIn([decoratorKey, 'leaves', leafKey]),\n start = _editorState$getBlock.start,\n end = _editorState$getBlock.end;\n\n var replacementRange = editorState.getSelection().merge({\n anchorKey: blockKey,\n focusKey: blockKey,\n anchorOffset: start,\n focusOffset: end,\n isBackward: false\n });\n var entityKey = getEntityKeyForSelection(contentState, replacementRange);\n var currentStyle = contentState.getBlockForKey(blockKey).getInlineStyleAt(start);\n contentState = DraftModifier.replaceText(contentState, replacementRange, composedChars, currentStyle, entityKey); // We need to update the editorState so the leaf node ranges are properly\n // updated and multiple mutations are correctly applied.\n\n editorState = EditorState.set(editorState, {\n currentContent: contentState\n });\n }); // When we apply the text changes to the ContentState, the selection always\n // goes to the end of the field, but it should just stay where it is\n // after compositionEnd.\n\n var documentSelection = getDraftEditorSelection(editorState, getContentEditableContainer(editor));\n var compositionEndSelectionState = documentSelection.selectionState;\n editor.restoreEditorDOM(); // See:\n // - https://github.com/facebook/draft-js/issues/2093\n // - https://github.com/facebook/draft-js/pull/2094\n // Apply this fix only in IE for now. We can test it in\n // other browsers in the future to ensure no regressions\n\n var editorStateWithUpdatedSelection = isIE ? EditorState.forceSelection(editorState, compositionEndSelectionState) : EditorState.acceptSelection(editorState, compositionEndSelectionState);\n editor.update(EditorState.push(editorStateWithUpdatedSelection, contentState, 'insert-characters'));\n }\n};\nmodule.exports = DraftEditorCompositionHandler;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar _assign = require(\"object-assign\");\n\nfunction _extends() { _extends = _assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }\n\nfunction _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\nfunction _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\nvar DraftEditorBlock = require(\"./DraftEditorBlock.react\");\n\nvar DraftOffsetKey = require(\"./DraftOffsetKey\");\n\nvar React = require(\"react\");\n\nvar cx = require(\"fbjs/lib/cx\");\n\nvar joinClasses = require(\"fbjs/lib/joinClasses\");\n\nvar nullthrows = require(\"fbjs/lib/nullthrows\");\n\n/**\n * Provide default styling for list items. This way, lists will be styled with\n * proper counters and indentation even if the caller does not specify\n * their own styling at all. If more than five levels of nesting are needed,\n * the necessary CSS classes can be provided via `blockStyleFn` configuration.\n */\nvar getListItemClasses = function getListItemClasses(type, depth, shouldResetCount, direction) {\n return cx({\n 'public/DraftStyleDefault/unorderedListItem': type === 'unordered-list-item',\n 'public/DraftStyleDefault/orderedListItem': type === 'ordered-list-item',\n 'public/DraftStyleDefault/reset': shouldResetCount,\n 'public/DraftStyleDefault/depth0': depth === 0,\n 'public/DraftStyleDefault/depth1': depth === 1,\n 'public/DraftStyleDefault/depth2': depth === 2,\n 'public/DraftStyleDefault/depth3': depth === 3,\n 'public/DraftStyleDefault/depth4': depth >= 4,\n 'public/DraftStyleDefault/listLTR': direction === 'LTR',\n 'public/DraftStyleDefault/listRTL': direction === 'RTL'\n });\n};\n/**\n * `DraftEditorContents` is the container component for all block components\n * rendered for a `DraftEditor`. It is optimized to aggressively avoid\n * re-rendering blocks whenever possible.\n *\n * This component is separate from `DraftEditor` because certain props\n * (for instance, ARIA props) must be allowed to update without affecting\n * the contents of the editor.\n */\n\n\nvar DraftEditorContents = /*#__PURE__*/function (_React$Component) {\n _inheritsLoose(DraftEditorContents, _React$Component);\n\n function DraftEditorContents() {\n return _React$Component.apply(this, arguments) || this;\n }\n\n var _proto = DraftEditorContents.prototype;\n\n _proto.shouldComponentUpdate = function shouldComponentUpdate(nextProps) {\n var prevEditorState = this.props.editorState;\n var nextEditorState = nextProps.editorState;\n var prevDirectionMap = prevEditorState.getDirectionMap();\n var nextDirectionMap = nextEditorState.getDirectionMap(); // Text direction has changed for one or more blocks. We must re-render.\n\n if (prevDirectionMap !== nextDirectionMap) {\n return true;\n }\n\n var didHaveFocus = prevEditorState.getSelection().getHasFocus();\n var nowHasFocus = nextEditorState.getSelection().getHasFocus();\n\n if (didHaveFocus !== nowHasFocus) {\n return true;\n }\n\n var nextNativeContent = nextEditorState.getNativelyRenderedContent();\n var wasComposing = prevEditorState.isInCompositionMode();\n var nowComposing = nextEditorState.isInCompositionMode(); // If the state is unchanged or we're currently rendering a natively\n // rendered state, there's nothing new to be done.\n\n if (prevEditorState === nextEditorState || nextNativeContent !== null && nextEditorState.getCurrentContent() === nextNativeContent || wasComposing && nowComposing) {\n return false;\n }\n\n var prevContent = prevEditorState.getCurrentContent();\n var nextContent = nextEditorState.getCurrentContent();\n var prevDecorator = prevEditorState.getDecorator();\n var nextDecorator = nextEditorState.getDecorator();\n return wasComposing !== nowComposing || prevContent !== nextContent || prevDecorator !== nextDecorator || nextEditorState.mustForceSelection();\n };\n\n _proto.render = function render() {\n var _this$props = this.props,\n blockRenderMap = _this$props.blockRenderMap,\n blockRendererFn = _this$props.blockRendererFn,\n blockStyleFn = _this$props.blockStyleFn,\n customStyleMap = _this$props.customStyleMap,\n customStyleFn = _this$props.customStyleFn,\n editorState = _this$props.editorState,\n editorKey = _this$props.editorKey,\n preventScroll = _this$props.preventScroll,\n textDirectionality = _this$props.textDirectionality;\n var content = editorState.getCurrentContent();\n var selection = editorState.getSelection();\n var forceSelection = editorState.mustForceSelection();\n var decorator = editorState.getDecorator();\n var directionMap = nullthrows(editorState.getDirectionMap());\n var blocksAsArray = content.getBlocksAsArray();\n var processedBlocks = [];\n var currentDepth = null;\n var lastWrapperTemplate = null;\n\n for (var ii = 0; ii < blocksAsArray.length; ii++) {\n var _block = blocksAsArray[ii];\n\n var key = _block.getKey();\n\n var blockType = _block.getType();\n\n var customRenderer = blockRendererFn(_block);\n var CustomComponent = void 0,\n customProps = void 0,\n customEditable = void 0;\n\n if (customRenderer) {\n CustomComponent = customRenderer.component;\n customProps = customRenderer.props;\n customEditable = customRenderer.editable;\n }\n\n var direction = textDirectionality ? textDirectionality : directionMap.get(key);\n var offsetKey = DraftOffsetKey.encode(key, 0, 0);\n var componentProps = {\n contentState: content,\n block: _block,\n blockProps: customProps,\n blockStyleFn: blockStyleFn,\n customStyleMap: customStyleMap,\n customStyleFn: customStyleFn,\n decorator: decorator,\n direction: direction,\n forceSelection: forceSelection,\n offsetKey: offsetKey,\n preventScroll: preventScroll,\n selection: selection,\n tree: editorState.getBlockTree(key)\n };\n var configForType = blockRenderMap.get(blockType) || blockRenderMap.get('unstyled');\n var wrapperTemplate = configForType.wrapper;\n var Element = configForType.element || blockRenderMap.get('unstyled').element;\n\n var depth = _block.getDepth();\n\n var _className = '';\n\n if (blockStyleFn) {\n _className = blockStyleFn(_block);\n } // List items are special snowflakes, since we handle nesting and\n // counters manually.\n\n\n if (Element === 'li') {\n var shouldResetCount = lastWrapperTemplate !== wrapperTemplate || currentDepth === null || depth > currentDepth;\n _className = joinClasses(_className, getListItemClasses(blockType, depth, shouldResetCount, direction));\n }\n\n var Component = CustomComponent || DraftEditorBlock;\n var childProps = {\n className: _className,\n 'data-block': true,\n 'data-editor': editorKey,\n 'data-offset-key': offsetKey,\n key: key\n };\n\n if (customEditable !== undefined) {\n childProps = _objectSpread({}, childProps, {\n contentEditable: customEditable,\n suppressContentEditableWarning: true\n });\n }\n\n var child = React.createElement(Element, childProps,\n /* $FlowFixMe[incompatible-type] (>=0.112.0 site=www,mobile) This\n * comment suppresses an error found when Flow v0.112 was deployed. To\n * see the error delete this comment and run Flow. */\n React.createElement(Component, _extends({}, componentProps, {\n key: key\n })));\n processedBlocks.push({\n block: child,\n wrapperTemplate: wrapperTemplate,\n key: key,\n offsetKey: offsetKey\n });\n\n if (wrapperTemplate) {\n currentDepth = _block.getDepth();\n } else {\n currentDepth = null;\n }\n\n lastWrapperTemplate = wrapperTemplate;\n } // Group contiguous runs of blocks that have the same wrapperTemplate\n\n\n var outputBlocks = [];\n\n for (var _ii = 0; _ii < processedBlocks.length;) {\n var info = processedBlocks[_ii];\n\n if (info.wrapperTemplate) {\n var blocks = [];\n\n do {\n blocks.push(processedBlocks[_ii].block);\n _ii++;\n } while (_ii < processedBlocks.length && processedBlocks[_ii].wrapperTemplate === info.wrapperTemplate);\n\n var wrapperElement = React.cloneElement(info.wrapperTemplate, {\n key: info.key + '-wrap',\n 'data-offset-key': info.offsetKey\n }, blocks);\n outputBlocks.push(wrapperElement);\n } else {\n outputBlocks.push(info.block);\n _ii++;\n }\n }\n\n return React.createElement(\"div\", {\n \"data-contents\": \"true\"\n }, outputBlocks);\n };\n\n return DraftEditorContents;\n}(React.Component);\n\nmodule.exports = DraftEditorContents;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n */\n'use strict';\n\nvar gkx = require(\"./gkx\");\n\nvar experimentalTreeDataSupport = gkx('draft_tree_data_support');\nmodule.exports = experimentalTreeDataSupport ? require(\"./DraftEditorContentsExperimental.react\") : require(\"./DraftEditorContents-core.react\");","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n *\n * This file is a fork of DraftEditorContents.react.js for tree nodes\n *\n * This is unstable and not part of the public API and should not be used by\n * production systems. This file may be update/removed without notice.\n */\n'use strict';\n\nvar _assign = require(\"object-assign\");\n\nfunction _extends() { _extends = _assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }\n\nfunction _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\nvar DraftEditorBlockNode = require(\"./DraftEditorBlockNode.react\");\n\nvar DraftOffsetKey = require(\"./DraftOffsetKey\");\n\nvar React = require(\"react\");\n\nvar nullthrows = require(\"fbjs/lib/nullthrows\");\n\n/**\n * `DraftEditorContents` is the container component for all block components\n * rendered for a `DraftEditor`. It is optimized to aggressively avoid\n * re-rendering blocks whenever possible.\n *\n * This component is separate from `DraftEditor` because certain props\n * (for instance, ARIA props) must be allowed to update without affecting\n * the contents of the editor.\n */\nvar DraftEditorContentsExperimental = /*#__PURE__*/function (_React$Component) {\n _inheritsLoose(DraftEditorContentsExperimental, _React$Component);\n\n function DraftEditorContentsExperimental() {\n return _React$Component.apply(this, arguments) || this;\n }\n\n var _proto = DraftEditorContentsExperimental.prototype;\n\n _proto.shouldComponentUpdate = function shouldComponentUpdate(nextProps) {\n var prevEditorState = this.props.editorState;\n var nextEditorState = nextProps.editorState;\n var prevDirectionMap = prevEditorState.getDirectionMap();\n var nextDirectionMap = nextEditorState.getDirectionMap(); // Text direction has changed for one or more blocks. We must re-render.\n\n if (prevDirectionMap !== nextDirectionMap) {\n return true;\n }\n\n var didHaveFocus = prevEditorState.getSelection().getHasFocus();\n var nowHasFocus = nextEditorState.getSelection().getHasFocus();\n\n if (didHaveFocus !== nowHasFocus) {\n return true;\n }\n\n var nextNativeContent = nextEditorState.getNativelyRenderedContent();\n var wasComposing = prevEditorState.isInCompositionMode();\n var nowComposing = nextEditorState.isInCompositionMode(); // If the state is unchanged or we're currently rendering a natively\n // rendered state, there's nothing new to be done.\n\n if (prevEditorState === nextEditorState || nextNativeContent !== null && nextEditorState.getCurrentContent() === nextNativeContent || wasComposing && nowComposing) {\n return false;\n }\n\n var prevContent = prevEditorState.getCurrentContent();\n var nextContent = nextEditorState.getCurrentContent();\n var prevDecorator = prevEditorState.getDecorator();\n var nextDecorator = nextEditorState.getDecorator();\n return wasComposing !== nowComposing || prevContent !== nextContent || prevDecorator !== nextDecorator || nextEditorState.mustForceSelection();\n };\n\n _proto.render = function render() {\n var _this$props = this.props,\n blockRenderMap = _this$props.blockRenderMap,\n blockRendererFn = _this$props.blockRendererFn,\n blockStyleFn = _this$props.blockStyleFn,\n customStyleMap = _this$props.customStyleMap,\n customStyleFn = _this$props.customStyleFn,\n editorState = _this$props.editorState,\n editorKey = _this$props.editorKey,\n textDirectionality = _this$props.textDirectionality;\n var content = editorState.getCurrentContent();\n var selection = editorState.getSelection();\n var forceSelection = editorState.mustForceSelection();\n var decorator = editorState.getDecorator();\n var directionMap = nullthrows(editorState.getDirectionMap());\n var blocksAsArray = content.getBlocksAsArray();\n var rootBlock = blocksAsArray[0];\n var processedBlocks = [];\n var nodeBlock = rootBlock;\n\n while (nodeBlock) {\n var blockKey = nodeBlock.getKey();\n var blockProps = {\n blockRenderMap: blockRenderMap,\n blockRendererFn: blockRendererFn,\n blockStyleFn: blockStyleFn,\n contentState: content,\n customStyleFn: customStyleFn,\n customStyleMap: customStyleMap,\n decorator: decorator,\n editorKey: editorKey,\n editorState: editorState,\n forceSelection: forceSelection,\n selection: selection,\n block: nodeBlock,\n direction: textDirectionality ? textDirectionality : directionMap.get(blockKey),\n tree: editorState.getBlockTree(blockKey)\n };\n var configForType = blockRenderMap.get(nodeBlock.getType()) || blockRenderMap.get('unstyled');\n var wrapperTemplate = configForType.wrapper;\n processedBlocks.push({\n /* $FlowFixMe[incompatible-type] (>=0.112.0 site=www,mobile) This\n * comment suppresses an error found when Flow v0.112 was deployed. To\n * see the error delete this comment and run Flow. */\n block: React.createElement(DraftEditorBlockNode, _extends({\n key: blockKey\n }, blockProps)),\n wrapperTemplate: wrapperTemplate,\n key: blockKey,\n offsetKey: DraftOffsetKey.encode(blockKey, 0, 0)\n });\n var nextBlockKey = nodeBlock.getNextSiblingKey();\n nodeBlock = nextBlockKey ? content.getBlockForKey(nextBlockKey) : null;\n } // Group contiguous runs of blocks that have the same wrapperTemplate\n\n\n var outputBlocks = [];\n\n for (var ii = 0; ii < processedBlocks.length;) {\n var info = processedBlocks[ii];\n\n if (info.wrapperTemplate) {\n var blocks = [];\n\n do {\n blocks.push(processedBlocks[ii].block);\n ii++;\n } while (ii < processedBlocks.length && processedBlocks[ii].wrapperTemplate === info.wrapperTemplate);\n\n var wrapperElement = React.cloneElement(info.wrapperTemplate, {\n key: info.key + '-wrap',\n 'data-offset-key': info.offsetKey\n }, blocks);\n outputBlocks.push(wrapperElement);\n } else {\n outputBlocks.push(info.block);\n ii++;\n }\n }\n\n return React.createElement(\"div\", {\n \"data-contents\": \"true\"\n }, outputBlocks);\n };\n\n return DraftEditorContentsExperimental;\n}(React.Component);\n\nmodule.exports = DraftEditorContentsExperimental;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n *\n * This is unstable and not part of the public API and should not be used by\n * production systems. This file may be update/removed without notice.\n */\n'use strict';\n\nvar _assign = require(\"object-assign\");\n\nfunction _extends() { _extends = _assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }\n\nfunction _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\nvar DraftOffsetKey = require(\"./DraftOffsetKey\");\n\nvar React = require(\"react\");\n\nvar UnicodeBidi = require(\"fbjs/lib/UnicodeBidi\");\n\nvar UnicodeBidiDirection = require(\"fbjs/lib/UnicodeBidiDirection\");\n\nvar DraftEditorDecoratedLeaves = /*#__PURE__*/function (_React$Component) {\n _inheritsLoose(DraftEditorDecoratedLeaves, _React$Component);\n\n function DraftEditorDecoratedLeaves() {\n return _React$Component.apply(this, arguments) || this;\n }\n\n var _proto = DraftEditorDecoratedLeaves.prototype;\n\n _proto.render = function render() {\n var _this$props = this.props,\n block = _this$props.block,\n children = _this$props.children,\n contentState = _this$props.contentState,\n decorator = _this$props.decorator,\n decoratorKey = _this$props.decoratorKey,\n direction = _this$props.direction,\n leafSet = _this$props.leafSet,\n text = _this$props.text;\n var blockKey = block.getKey();\n var leavesForLeafSet = leafSet.get('leaves');\n var DecoratorComponent = decorator.getComponentForKey(decoratorKey);\n var decoratorProps = decorator.getPropsForKey(decoratorKey);\n var decoratorOffsetKey = DraftOffsetKey.encode(blockKey, parseInt(decoratorKey, 10), 0);\n var decoratedText = text.slice(leavesForLeafSet.first().get('start'), leavesForLeafSet.last().get('end')); // Resetting dir to the same value on a child node makes Chrome/Firefox\n // confused on cursor movement. See http://jsfiddle.net/d157kLck/3/\n\n var dir = UnicodeBidiDirection.getHTMLDirIfDifferent(UnicodeBidi.getDirection(decoratedText), direction);\n return React.createElement(DecoratorComponent, _extends({}, decoratorProps, {\n contentState: contentState,\n decoratedText: decoratedText,\n dir: dir,\n key: decoratorOffsetKey,\n entityKey: block.getEntityAt(leafSet.get('start')),\n offsetKey: decoratorOffsetKey\n }), children);\n };\n\n return DraftEditorDecoratedLeaves;\n}(React.Component);\n\nmodule.exports = DraftEditorDecoratedLeaves;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar DataTransfer = require(\"fbjs/lib/DataTransfer\");\n\nvar DraftModifier = require(\"./DraftModifier\");\n\nvar EditorState = require(\"./EditorState\");\n\nvar findAncestorOffsetKey = require(\"./findAncestorOffsetKey\");\n\nvar getCorrectDocumentFromNode = require(\"./getCorrectDocumentFromNode\");\n\nvar getTextContentFromFiles = require(\"./getTextContentFromFiles\");\n\nvar getUpdatedSelectionState = require(\"./getUpdatedSelectionState\");\n\nvar getWindowForNode = require(\"./getWindowForNode\");\n\nvar isEventHandled = require(\"./isEventHandled\");\n\nvar nullthrows = require(\"fbjs/lib/nullthrows\");\n/**\n * Get a SelectionState for the supplied mouse event.\n */\n\n\nfunction getSelectionForEvent(event, editorState) {\n var node = null;\n var offset = null;\n var eventTargetDocument = getCorrectDocumentFromNode(event.currentTarget);\n /* $FlowFixMe[prop-missing] (>=0.68.0 site=www,mobile) This comment\n * suppresses an error found when Flow v0.68 was deployed. To see the error\n * delete this comment and run Flow. */\n\n if (typeof eventTargetDocument.caretRangeFromPoint === 'function') {\n /* $FlowFixMe[incompatible-use] (>=0.68.0 site=www,mobile) This comment\n * suppresses an error found when Flow v0.68 was deployed. To see the error\n * delete this comment and run Flow. */\n var dropRange = eventTargetDocument.caretRangeFromPoint(event.x, event.y);\n node = dropRange.startContainer;\n offset = dropRange.startOffset;\n } else if (event.rangeParent) {\n node = event.rangeParent;\n offset = event.rangeOffset;\n } else {\n return null;\n }\n\n node = nullthrows(node);\n offset = nullthrows(offset);\n var offsetKey = nullthrows(findAncestorOffsetKey(node));\n return getUpdatedSelectionState(editorState, offsetKey, offset, offsetKey, offset);\n}\n\nvar DraftEditorDragHandler = {\n /**\n * Drag originating from input terminated.\n */\n onDragEnd: function onDragEnd(editor) {\n editor.exitCurrentMode();\n endDrag(editor);\n },\n\n /**\n * Handle data being dropped.\n */\n onDrop: function onDrop(editor, e) {\n var data = new DataTransfer(e.nativeEvent.dataTransfer);\n var editorState = editor._latestEditorState;\n var dropSelection = getSelectionForEvent(e.nativeEvent, editorState);\n e.preventDefault();\n editor._dragCount = 0;\n editor.exitCurrentMode();\n\n if (dropSelection == null) {\n return;\n }\n\n var files = data.getFiles();\n\n if (files.length > 0) {\n if (editor.props.handleDroppedFiles && isEventHandled(editor.props.handleDroppedFiles(dropSelection, files))) {\n return;\n }\n /* $FlowFixMe[incompatible-call] This comment suppresses an error found\n * DataTransfer was typed. getFiles() returns an array of , not Blob */\n\n\n getTextContentFromFiles(files, function (fileText) {\n fileText && editor.update(insertTextAtSelection(editorState, dropSelection, fileText));\n });\n return;\n }\n\n var dragType = editor._internalDrag ? 'internal' : 'external';\n\n if (editor.props.handleDrop && isEventHandled(editor.props.handleDrop(dropSelection, data, dragType))) {// handled\n } else if (editor._internalDrag) {\n editor.update(moveText(editorState, dropSelection));\n } else {\n editor.update(insertTextAtSelection(editorState, dropSelection, data.getText()));\n }\n\n endDrag(editor);\n }\n};\n\nfunction endDrag(editor) {\n editor._internalDrag = false; // Fix issue #1383\n // Prior to React v16.5.0 onDrop breaks onSelect event:\n // https://github.com/facebook/react/issues/11379.\n // Dispatching a mouseup event on DOM node will make it go back to normal.\n\n var editorNode = editor.editorContainer;\n\n if (editorNode) {\n var mouseUpEvent = new MouseEvent('mouseup', {\n view: getWindowForNode(editorNode),\n bubbles: true,\n cancelable: true\n });\n editorNode.dispatchEvent(mouseUpEvent);\n }\n}\n\nfunction moveText(editorState, targetSelection) {\n var newContentState = DraftModifier.moveText(editorState.getCurrentContent(), editorState.getSelection(), targetSelection);\n return EditorState.push(editorState, newContentState, 'insert-fragment');\n}\n/**\n * Insert text at a specified selection.\n */\n\n\nfunction insertTextAtSelection(editorState, selection, text) {\n var newContentState = DraftModifier.insertText(editorState.getCurrentContent(), selection, text, editorState.getCurrentInlineStyle());\n return EditorState.push(editorState, newContentState, 'insert-fragment');\n}\n\nmodule.exports = DraftEditorDragHandler;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar UserAgent = require(\"fbjs/lib/UserAgent\");\n\nvar onBeforeInput = require(\"./editOnBeforeInput\");\n\nvar onBlur = require(\"./editOnBlur\");\n\nvar onCompositionStart = require(\"./editOnCompositionStart\");\n\nvar onCopy = require(\"./editOnCopy\");\n\nvar onCut = require(\"./editOnCut\");\n\nvar onDragOver = require(\"./editOnDragOver\");\n\nvar onDragStart = require(\"./editOnDragStart\");\n\nvar onFocus = require(\"./editOnFocus\");\n\nvar onInput = require(\"./editOnInput\");\n\nvar onKeyDown = require(\"./editOnKeyDown\");\n\nvar onPaste = require(\"./editOnPaste\");\n\nvar onSelect = require(\"./editOnSelect\");\n\nvar isChrome = UserAgent.isBrowser('Chrome');\nvar isFirefox = UserAgent.isBrowser('Firefox');\nvar selectionHandler = isChrome || isFirefox ? onSelect : function (e) {};\nvar DraftEditorEditHandler = {\n onBeforeInput: onBeforeInput,\n onBlur: onBlur,\n onCompositionStart: onCompositionStart,\n onCopy: onCopy,\n onCut: onCut,\n onDragOver: onDragOver,\n onDragStart: onDragStart,\n onFocus: onFocus,\n onInput: onInput,\n onKeyDown: onKeyDown,\n onPaste: onPaste,\n onSelect: onSelect,\n // In certain cases, contenteditable on chrome does not fire the onSelect\n // event, causing problems with cursor positioning. Therefore, the selection\n // state update handler is added to more events to ensure that the selection\n // state is always synced with the actual cursor positions.\n onMouseUp: selectionHandler,\n onKeyUp: selectionHandler\n};\nmodule.exports = DraftEditorEditHandler;","\"use strict\";\n\n/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\nvar ReactDOMComet = require(\"react-dom\");\n\nvar flushControlled = ReactDOMComet.unstable_flushControlled;\nmodule.exports = flushControlled;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar _assign = require(\"object-assign\");\n\nfunction _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return self; }\n\nfunction _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\nvar DraftEditorTextNode = require(\"./DraftEditorTextNode.react\");\n\nvar React = require(\"react\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar isHTMLBRElement = require(\"./isHTMLBRElement\");\n\nvar setDraftEditorSelection = require(\"./setDraftEditorSelection\").setDraftEditorSelection;\n\n/**\n * All leaf nodes in the editor are spans with single text nodes. Leaf\n * elements are styled based on the merging of an optional custom style map\n * and a default style map.\n *\n * `DraftEditorLeaf` also provides a wrapper for calling into the imperative\n * DOM Selection API. In this way, top-level components can declaratively\n * maintain the selection state.\n */\nvar DraftEditorLeaf = /*#__PURE__*/function (_React$Component) {\n _inheritsLoose(DraftEditorLeaf, _React$Component);\n\n function DraftEditorLeaf() {\n var _this;\n\n for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {\n args[_key] = arguments[_key];\n }\n\n _this = _React$Component.call.apply(_React$Component, [this].concat(args)) || this;\n\n _defineProperty(_assertThisInitialized(_this), \"leaf\", void 0);\n\n return _this;\n }\n\n var _proto = DraftEditorLeaf.prototype;\n\n _proto._setSelection = function _setSelection() {\n var selection = this.props.selection; // If selection state is irrelevant to the parent block, no-op.\n\n if (selection == null || !selection.getHasFocus()) {\n return;\n }\n\n var _this$props = this.props,\n block = _this$props.block,\n start = _this$props.start,\n text = _this$props.text;\n var blockKey = block.getKey();\n var end = start + text.length;\n\n if (!selection.hasEdgeWithin(blockKey, start, end)) {\n return;\n } // Determine the appropriate target node for selection. If the child\n // is not a text node, it is a
spacer. In this case, use the\n // itself as the selection target.\n\n\n var node = this.leaf;\n !node ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Missing node') : invariant(false) : void 0;\n var child = node.firstChild;\n !child ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Missing child') : invariant(false) : void 0;\n var targetNode;\n\n if (child.nodeType === Node.TEXT_NODE) {\n targetNode = child;\n } else if (isHTMLBRElement(child)) {\n targetNode = node;\n } else {\n targetNode = child.firstChild;\n !targetNode ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Missing targetNode') : invariant(false) : void 0;\n }\n\n setDraftEditorSelection(selection, targetNode, blockKey, start, end);\n };\n\n _proto.shouldComponentUpdate = function shouldComponentUpdate(nextProps) {\n var leafNode = this.leaf;\n !leafNode ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Missing leafNode') : invariant(false) : void 0;\n var shouldUpdate = leafNode.textContent !== nextProps.text || nextProps.styleSet !== this.props.styleSet || nextProps.forceSelection;\n return shouldUpdate;\n };\n\n _proto.componentDidUpdate = function componentDidUpdate() {\n this._setSelection();\n };\n\n _proto.componentDidMount = function componentDidMount() {\n this._setSelection();\n };\n\n _proto.render = function render() {\n var _this2 = this;\n\n var block = this.props.block;\n var text = this.props.text; // If the leaf is at the end of its block and ends in a soft newline, append\n // an extra line feed character. Browsers collapse trailing newline\n // characters, which leaves the cursor in the wrong place after a\n // shift+enter. The extra character repairs this.\n\n if (text.endsWith('\\n') && this.props.isLast) {\n text += '\\n';\n }\n\n var _this$props2 = this.props,\n customStyleMap = _this$props2.customStyleMap,\n customStyleFn = _this$props2.customStyleFn,\n offsetKey = _this$props2.offsetKey,\n styleSet = _this$props2.styleSet;\n var styleObj = styleSet.reduce(function (map, styleName) {\n var mergedStyles = {};\n var style = customStyleMap[styleName];\n\n if (style !== undefined && map.textDecoration !== style.textDecoration) {\n // .trim() is necessary for IE9/10/11 and Edge\n mergedStyles.textDecoration = [map.textDecoration, style.textDecoration].join(' ').trim();\n }\n\n return _assign(map, style, mergedStyles);\n }, {});\n\n if (customStyleFn) {\n var newStyles = customStyleFn(styleSet, block);\n styleObj = _assign(styleObj, newStyles);\n }\n\n return React.createElement(\"span\", {\n \"data-offset-key\": offsetKey,\n ref: function ref(_ref) {\n return _this2.leaf = _ref;\n },\n style: styleObj\n }, React.createElement(DraftEditorTextNode, null, text));\n };\n\n return DraftEditorLeaf;\n}(React.Component);\n\nmodule.exports = DraftEditorLeaf;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n *\n * This is unstable and not part of the public API and should not be used by\n * production systems. This file may be update/removed without notice.\n */\n'use strict';\n\nfunction _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\nvar DraftEditorDecoratedLeaves = require(\"./DraftEditorDecoratedLeaves.react\");\n\nvar DraftEditorLeaf = require(\"./DraftEditorLeaf.react\");\n\nvar DraftOffsetKey = require(\"./DraftOffsetKey\");\n\nvar Immutable = require(\"immutable\");\n\nvar React = require(\"react\");\n\nvar cx = require(\"fbjs/lib/cx\");\n\nvar List = Immutable.List;\n\nvar DraftEditorNode = /*#__PURE__*/function (_React$Component) {\n _inheritsLoose(DraftEditorNode, _React$Component);\n\n function DraftEditorNode() {\n return _React$Component.apply(this, arguments) || this;\n }\n\n var _proto = DraftEditorNode.prototype;\n\n _proto.render = function render() {\n var _this$props = this.props,\n block = _this$props.block,\n contentState = _this$props.contentState,\n customStyleFn = _this$props.customStyleFn,\n customStyleMap = _this$props.customStyleMap,\n decorator = _this$props.decorator,\n direction = _this$props.direction,\n forceSelection = _this$props.forceSelection,\n hasSelection = _this$props.hasSelection,\n selection = _this$props.selection,\n tree = _this$props.tree;\n var blockKey = block.getKey();\n var text = block.getText();\n var lastLeafSet = tree.size - 1;\n var children = this.props.children || tree.map(function (leafSet, ii) {\n var decoratorKey = leafSet.get('decoratorKey');\n var leavesForLeafSet = leafSet.get('leaves');\n var lastLeaf = leavesForLeafSet.size - 1;\n var Leaves = leavesForLeafSet.map(function (leaf, jj) {\n var offsetKey = DraftOffsetKey.encode(blockKey, ii, jj);\n var start = leaf.get('start');\n var end = leaf.get('end');\n return React.createElement(DraftEditorLeaf, {\n key: offsetKey,\n offsetKey: offsetKey,\n block: block,\n start: start,\n selection: hasSelection ? selection : null,\n forceSelection: forceSelection,\n text: text.slice(start, end),\n styleSet: block.getInlineStyleAt(start),\n customStyleMap: customStyleMap,\n customStyleFn: customStyleFn,\n isLast: decoratorKey === lastLeafSet && jj === lastLeaf\n });\n }).toArray();\n\n if (!decoratorKey || !decorator) {\n return Leaves;\n }\n\n return React.createElement(DraftEditorDecoratedLeaves, {\n block: block,\n children: Leaves,\n contentState: contentState,\n decorator: decorator,\n decoratorKey: decoratorKey,\n direction: direction,\n leafSet: leafSet,\n text: text,\n key: ii\n });\n }).toArray();\n return React.createElement(\"div\", {\n \"data-offset-key\": DraftOffsetKey.encode(blockKey, 0, 0),\n className: cx({\n 'public/DraftStyleDefault/block': true,\n 'public/DraftStyleDefault/ltr': direction === 'LTR',\n 'public/DraftStyleDefault/rtl': direction === 'RTL'\n })\n }, children);\n };\n\n return DraftEditorNode;\n}(React.Component);\n\nmodule.exports = DraftEditorNode;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nfunction _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\nvar React = require(\"react\");\n\nvar cx = require(\"fbjs/lib/cx\");\n\n/**\n * This component is responsible for rendering placeholder text for the\n * `DraftEditor` component.\n *\n * Override placeholder style via CSS.\n */\nvar DraftEditorPlaceholder = /*#__PURE__*/function (_React$Component) {\n _inheritsLoose(DraftEditorPlaceholder, _React$Component);\n\n function DraftEditorPlaceholder() {\n return _React$Component.apply(this, arguments) || this;\n }\n\n var _proto = DraftEditorPlaceholder.prototype;\n\n _proto.shouldComponentUpdate = function shouldComponentUpdate(nextProps) {\n return this.props.text !== nextProps.text || this.props.editorState.getSelection().getHasFocus() !== nextProps.editorState.getSelection().getHasFocus();\n };\n\n _proto.render = function render() {\n var hasFocus = this.props.editorState.getSelection().getHasFocus();\n var className = cx({\n 'public/DraftEditorPlaceholder/root': true,\n 'public/DraftEditorPlaceholder/hasFocus': hasFocus\n });\n var contentStyle = {\n whiteSpace: 'pre-wrap'\n };\n return React.createElement(\"div\", {\n className: className\n }, React.createElement(\"div\", {\n className: cx('public/DraftEditorPlaceholder/inner'),\n id: this.props.accessibilityID,\n style: contentStyle\n }, this.props.text));\n };\n\n return DraftEditorPlaceholder;\n}(React.Component);\n\nmodule.exports = DraftEditorPlaceholder;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nfunction _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return self; }\n\nfunction _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\nvar React = require(\"react\");\n\nvar UserAgent = require(\"fbjs/lib/UserAgent\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar isElement = require(\"./isElement\"); // In IE, spans with
tags render as two newlines. By rendering a span\n// with only a newline character, we can be sure to render a single line.\n\n\nvar useNewlineChar = UserAgent.isBrowser('IE <= 11');\n/**\n * Check whether the node should be considered a newline.\n */\n\nfunction isNewline(node) {\n return useNewlineChar ? node.textContent === '\\n' : node.tagName === 'BR';\n}\n/**\n * Placeholder elements for empty text content.\n *\n * What is this `data-text` attribute, anyway? It turns out that we need to\n * put an attribute on the lowest-level text node in order to preserve correct\n * spellcheck handling. If the is naked, Chrome and Safari may do\n * bizarre things to do the DOM -- split text nodes, create extra spans, etc.\n * If the has an attribute, this appears not to happen.\n * See http://jsfiddle.net/9khdavod/ for the failure case, and\n * http://jsfiddle.net/7pg143f7/ for the fixed case.\n */\n\n\nvar NEWLINE_A = function NEWLINE_A(ref) {\n return useNewlineChar ? React.createElement(\"span\", {\n key: \"A\",\n \"data-text\": \"true\",\n ref: ref\n }, '\\n') : React.createElement(\"br\", {\n key: \"A\",\n \"data-text\": \"true\",\n ref: ref\n });\n};\n\nvar NEWLINE_B = function NEWLINE_B(ref) {\n return useNewlineChar ? React.createElement(\"span\", {\n key: \"B\",\n \"data-text\": \"true\",\n ref: ref\n }, '\\n') : React.createElement(\"br\", {\n key: \"B\",\n \"data-text\": \"true\",\n ref: ref\n });\n};\n\n/**\n * The lowest-level component in a `DraftEditor`, the text node component\n * replaces the default React text node implementation. This allows us to\n * perform custom handling of newline behavior and avoid re-rendering text\n * nodes with DOM state that already matches the expectations of our immutable\n * editor state.\n */\nvar DraftEditorTextNode = /*#__PURE__*/function (_React$Component) {\n _inheritsLoose(DraftEditorTextNode, _React$Component);\n\n function DraftEditorTextNode(props) {\n var _this;\n\n _this = _React$Component.call(this, props) || this; // By flipping this flag, we also keep flipping keys which forces\n // React to remount this node every time it rerenders.\n\n _defineProperty(_assertThisInitialized(_this), \"_forceFlag\", void 0);\n\n _defineProperty(_assertThisInitialized(_this), \"_node\", void 0);\n\n _this._forceFlag = false;\n return _this;\n }\n\n var _proto = DraftEditorTextNode.prototype;\n\n _proto.shouldComponentUpdate = function shouldComponentUpdate(nextProps) {\n var node = this._node;\n var shouldBeNewline = nextProps.children === '';\n !isElement(node) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'node is not an Element') : invariant(false) : void 0;\n var elementNode = node;\n\n if (shouldBeNewline) {\n return !isNewline(elementNode);\n }\n\n return elementNode.textContent !== nextProps.children;\n };\n\n _proto.componentDidMount = function componentDidMount() {\n this._forceFlag = !this._forceFlag;\n };\n\n _proto.componentDidUpdate = function componentDidUpdate() {\n this._forceFlag = !this._forceFlag;\n };\n\n _proto.render = function render() {\n var _this2 = this;\n\n if (this.props.children === '') {\n return this._forceFlag ? NEWLINE_A(function (ref) {\n return _this2._node = ref;\n }) : NEWLINE_B(function (ref) {\n return _this2._node = ref;\n });\n }\n\n return React.createElement(\"span\", {\n key: this._forceFlag ? 'A' : 'B',\n \"data-text\": \"true\",\n ref: function ref(_ref) {\n return _this2._node = _ref;\n }\n }, this.props.children);\n };\n\n return DraftEditorTextNode;\n}(React.Component);\n\nmodule.exports = DraftEditorTextNode;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n */\n'use strict';\n\nmodule.exports = {\n initODS: function initODS() {},\n handleExtensionCausedError: function handleExtensionCausedError() {}\n};","\"use strict\";\n\nfunction _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\n/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\nvar DraftEntityInstance = require(\"./DraftEntityInstance\");\n\nvar Immutable = require(\"immutable\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar uuid = require(\"./uuid\");\n\nvar Map = Immutable.Map;\nvar instances = Map();\nvar instanceKey = uuid();\n/**\n * Temporary utility for generating the warnings\n */\n\nfunction logWarning(oldMethodCall, newMethodCall) {\n console.warn('WARNING: ' + oldMethodCall + ' will be deprecated soon!\\nPlease use \"' + newMethodCall + '\" instead.');\n}\n\n/**\n * A \"document entity\" is an object containing metadata associated with a\n * piece of text in a ContentBlock.\n *\n * For example, a `link` entity might include a `uri` property. When a\n * ContentBlock is rendered in the browser, text that refers to that link\n * entity may be rendered as an anchor, with the `uri` as the href value.\n *\n * In a ContentBlock, every position in the text may correspond to zero\n * or one entities. This correspondence is tracked using a key string,\n * generated via DraftEntity.create() and used to obtain entity metadata\n * via DraftEntity.get().\n */\nvar DraftEntity = {\n /**\n * WARNING: This method will be deprecated soon!\n * Please use 'contentState.getLastCreatedEntityKey' instead.\n * ---\n * Get the random key string from whatever entity was last created.\n * We need this to support the new API, as part of transitioning to put Entity\n * storage in contentState.\n */\n getLastCreatedEntityKey: function getLastCreatedEntityKey() {\n logWarning('DraftEntity.getLastCreatedEntityKey', 'contentState.getLastCreatedEntityKey');\n return DraftEntity.__getLastCreatedEntityKey();\n },\n\n /**\n * WARNING: This method will be deprecated soon!\n * Please use 'contentState.createEntity' instead.\n * ---\n * Create a DraftEntityInstance and store it for later retrieval.\n *\n * A random key string will be generated and returned. This key may\n * be used to track the entity's usage in a ContentBlock, and for\n * retrieving data about the entity at render time.\n */\n create: function create(type, mutability, data) {\n logWarning('DraftEntity.create', 'contentState.createEntity');\n return DraftEntity.__create(type, mutability, data);\n },\n\n /**\n * WARNING: This method will be deprecated soon!\n * Please use 'contentState.addEntity' instead.\n * ---\n * Add an existing DraftEntityInstance to the DraftEntity map. This is\n * useful when restoring instances from the server.\n */\n add: function add(instance) {\n logWarning('DraftEntity.add', 'contentState.addEntity');\n return DraftEntity.__add(instance);\n },\n\n /**\n * WARNING: This method will be deprecated soon!\n * Please use 'contentState.getEntity' instead.\n * ---\n * Retrieve the entity corresponding to the supplied key string.\n */\n get: function get(key) {\n logWarning('DraftEntity.get', 'contentState.getEntity');\n return DraftEntity.__get(key);\n },\n\n /**\n * Get all the entities in the content state.\n */\n __getAll: function __getAll() {\n return instances;\n },\n\n /**\n * Load the entity map with the given set of entities.\n */\n __loadWithEntities: function __loadWithEntities(entities) {\n instances = entities;\n instanceKey = uuid();\n },\n\n /**\n * WARNING: This method will be deprecated soon!\n * Please use 'contentState.mergeEntityData' instead.\n * ---\n * Entity instances are immutable. If you need to update the data for an\n * instance, this method will merge your data updates and return a new\n * instance.\n */\n mergeData: function mergeData(key, toMerge) {\n logWarning('DraftEntity.mergeData', 'contentState.mergeEntityData');\n return DraftEntity.__mergeData(key, toMerge);\n },\n\n /**\n * WARNING: This method will be deprecated soon!\n * Please use 'contentState.replaceEntityData' instead.\n * ---\n * Completely replace the data for a given instance.\n */\n replaceData: function replaceData(key, newData) {\n logWarning('DraftEntity.replaceData', 'contentState.replaceEntityData');\n return DraftEntity.__replaceData(key, newData);\n },\n // ***********************************WARNING******************************\n // --- the above public API will be deprecated in the next version of Draft!\n // The methods below this line are private - don't call them directly.\n\n /**\n * Get the random key string from whatever entity was last created.\n * We need this to support the new API, as part of transitioning to put Entity\n * storage in contentState.\n */\n __getLastCreatedEntityKey: function __getLastCreatedEntityKey() {\n return instanceKey;\n },\n\n /**\n * Create a DraftEntityInstance and store it for later retrieval.\n *\n * A random key string will be generated and returned. This key may\n * be used to track the entity's usage in a ContentBlock, and for\n * retrieving data about the entity at render time.\n */\n __create: function __create(type, mutability, data) {\n return DraftEntity.__add(new DraftEntityInstance({\n type: type,\n mutability: mutability,\n data: data || {}\n }));\n },\n\n /**\n * Add an existing DraftEntityInstance to the DraftEntity map. This is\n * useful when restoring instances from the server.\n */\n __add: function __add(instance) {\n instanceKey = uuid();\n instances = instances.set(instanceKey, instance);\n return instanceKey;\n },\n\n /**\n * Retrieve the entity corresponding to the supplied key string.\n */\n __get: function __get(key) {\n var instance = instances.get(key);\n !!!instance ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Unknown DraftEntity key: %s.', key) : invariant(false) : void 0;\n return instance;\n },\n\n /**\n * Entity instances are immutable. If you need to update the data for an\n * instance, this method will merge your data updates and return a new\n * instance.\n */\n __mergeData: function __mergeData(key, toMerge) {\n var instance = DraftEntity.__get(key);\n\n var newData = _objectSpread({}, instance.getData(), toMerge);\n\n var newInstance = instance.set('data', newData);\n instances = instances.set(key, newInstance);\n return newInstance;\n },\n\n /**\n * Completely replace the data for a given instance.\n */\n __replaceData: function __replaceData(key, newData) {\n var instance = DraftEntity.__get(key);\n\n var newInstance = instance.set('data', newData);\n instances = instances.set(key, newInstance);\n return newInstance;\n }\n};\nmodule.exports = DraftEntity;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @legacyServerCallableInstance\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nfunction _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\nvar Immutable = require(\"immutable\");\n\nvar Record = Immutable.Record;\nvar DraftEntityInstanceRecord = Record({\n type: 'TOKEN',\n mutability: 'IMMUTABLE',\n data: Object\n});\n/**\n * An instance of a document entity, consisting of a `type` and relevant\n * `data`, metadata about the entity.\n *\n * For instance, a \"link\" entity might provide a URI, and a \"mention\"\n * entity might provide the mentioned user's ID. These pieces of data\n * may be used when rendering the entity as part of a ContentBlock DOM\n * representation. For a link, the data would be used as an href for\n * the rendered anchor. For a mention, the ID could be used to retrieve\n * a hovercard.\n */\n\nvar DraftEntityInstance = /*#__PURE__*/function (_DraftEntityInstanceR) {\n _inheritsLoose(DraftEntityInstance, _DraftEntityInstanceR);\n\n function DraftEntityInstance() {\n return _DraftEntityInstanceR.apply(this, arguments) || this;\n }\n\n var _proto = DraftEntityInstance.prototype;\n\n _proto.getType = function getType() {\n return this.get('type');\n };\n\n _proto.getMutability = function getMutability() {\n return this.get('mutability');\n };\n\n _proto.getData = function getData() {\n return this.get('data');\n };\n\n return DraftEntityInstance;\n}(DraftEntityInstanceRecord);\n\nmodule.exports = DraftEntityInstance;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\n/**\n * Identify the range to delete from a segmented entity.\n *\n * Rules:\n *\n * Example: 'John F. Kennedy'\n *\n * - Deletion from within any non-whitespace (i.e. ['John', 'F.', 'Kennedy'])\n * will return the range of that text.\n *\n * 'John F. Kennedy' -> 'John F.'\n * ^\n *\n * - Forward deletion of whitespace will remove the following section:\n *\n * 'John F. Kennedy' -> 'John Kennedy'\n * ^\n *\n * - Backward deletion of whitespace will remove the previous section:\n *\n * 'John F. Kennedy' -> 'F. Kennedy'\n * ^\n */\nvar DraftEntitySegments = {\n getRemovalRange: function getRemovalRange(selectionStart, selectionEnd, text, entityStart, direction) {\n var segments = text.split(' ');\n segments = segments.map(function (\n /*string*/\n segment,\n /*number*/\n ii) {\n if (direction === 'forward') {\n if (ii > 0) {\n return ' ' + segment;\n }\n } else if (ii < segments.length - 1) {\n return segment + ' ';\n }\n\n return segment;\n });\n var segmentStart = entityStart;\n var segmentEnd;\n var segment;\n var removalStart = null;\n var removalEnd = null;\n\n for (var jj = 0; jj < segments.length; jj++) {\n segment = segments[jj];\n segmentEnd = segmentStart + segment.length; // Our selection overlaps this segment.\n\n if (selectionStart < segmentEnd && segmentStart < selectionEnd) {\n if (removalStart !== null) {\n removalEnd = segmentEnd;\n } else {\n removalStart = segmentStart;\n removalEnd = segmentEnd;\n }\n } else if (removalStart !== null) {\n break;\n }\n\n segmentStart = segmentEnd;\n }\n\n var entityEnd = entityStart + text.length;\n var atStart = removalStart === entityStart;\n var atEnd = removalEnd === entityEnd;\n\n if (!atStart && atEnd || atStart && !atEnd) {\n if (direction === 'forward') {\n if (removalEnd !== entityEnd) {\n removalEnd++;\n }\n } else if (removalStart !== entityStart) {\n removalStart--;\n }\n }\n\n return {\n start: removalStart,\n end: removalEnd\n };\n }\n};\nmodule.exports = DraftEntitySegments;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n */\n'use strict';\n\nmodule.exports = {\n logBlockedSelectionEvent: function logBlockedSelectionEvent() {\n return null;\n },\n logSelectionStateFailure: function logSelectionStateFailure() {\n return null;\n }\n};","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar CharacterMetadata = require(\"./CharacterMetadata\");\n\nvar ContentStateInlineStyle = require(\"./ContentStateInlineStyle\");\n\nvar applyEntityToContentState = require(\"./applyEntityToContentState\");\n\nvar getCharacterRemovalRange = require(\"./getCharacterRemovalRange\");\n\nvar getContentStateFragment = require(\"./getContentStateFragment\");\n\nvar Immutable = require(\"immutable\");\n\nvar insertFragmentIntoContentState = require(\"./insertFragmentIntoContentState\");\n\nvar insertTextIntoContentState = require(\"./insertTextIntoContentState\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar modifyBlockForContentState = require(\"./modifyBlockForContentState\");\n\nvar removeEntitiesAtEdges = require(\"./removeEntitiesAtEdges\");\n\nvar removeRangeFromContentState = require(\"./removeRangeFromContentState\");\n\nvar splitBlockInContentState = require(\"./splitBlockInContentState\");\n\nvar OrderedSet = Immutable.OrderedSet;\n/**\n * `DraftModifier` provides a set of convenience methods that apply\n * modifications to a `ContentState` object based on a target `SelectionState`.\n *\n * Any change to a `ContentState` should be decomposable into a series of\n * transaction functions that apply the required changes and return output\n * `ContentState` objects.\n *\n * These functions encapsulate some of the most common transaction sequences.\n */\n\nvar DraftModifier = {\n replaceText: function replaceText(contentState, rangeToReplace, text, inlineStyle, entityKey) {\n var withoutEntities = removeEntitiesAtEdges(contentState, rangeToReplace);\n var withoutText = removeRangeFromContentState(withoutEntities, rangeToReplace);\n var character = CharacterMetadata.create({\n style: inlineStyle || OrderedSet(),\n entity: entityKey || null\n });\n return insertTextIntoContentState(withoutText, withoutText.getSelectionAfter(), text, character);\n },\n insertText: function insertText(contentState, targetRange, text, inlineStyle, entityKey) {\n !targetRange.isCollapsed() ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Target range must be collapsed for `insertText`.') : invariant(false) : void 0;\n return DraftModifier.replaceText(contentState, targetRange, text, inlineStyle, entityKey);\n },\n moveText: function moveText(contentState, removalRange, targetRange) {\n var movedFragment = getContentStateFragment(contentState, removalRange);\n var afterRemoval = DraftModifier.removeRange(contentState, removalRange, 'backward');\n return DraftModifier.replaceWithFragment(afterRemoval, targetRange, movedFragment);\n },\n replaceWithFragment: function replaceWithFragment(contentState, targetRange, fragment) {\n var mergeBlockData = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 'REPLACE_WITH_NEW_DATA';\n var withoutEntities = removeEntitiesAtEdges(contentState, targetRange);\n var withoutText = removeRangeFromContentState(withoutEntities, targetRange);\n return insertFragmentIntoContentState(withoutText, withoutText.getSelectionAfter(), fragment, mergeBlockData);\n },\n removeRange: function removeRange(contentState, rangeToRemove, removalDirection) {\n var startKey, endKey, startBlock, endBlock;\n\n if (rangeToRemove.getIsBackward()) {\n rangeToRemove = rangeToRemove.merge({\n anchorKey: rangeToRemove.getFocusKey(),\n anchorOffset: rangeToRemove.getFocusOffset(),\n focusKey: rangeToRemove.getAnchorKey(),\n focusOffset: rangeToRemove.getAnchorOffset(),\n isBackward: false\n });\n }\n\n startKey = rangeToRemove.getAnchorKey();\n endKey = rangeToRemove.getFocusKey();\n startBlock = contentState.getBlockForKey(startKey);\n endBlock = contentState.getBlockForKey(endKey);\n var startOffset = rangeToRemove.getStartOffset();\n var endOffset = rangeToRemove.getEndOffset();\n var startEntityKey = startBlock.getEntityAt(startOffset);\n var endEntityKey = endBlock.getEntityAt(endOffset - 1); // Check whether the selection state overlaps with a single entity.\n // If so, try to remove the appropriate substring of the entity text.\n\n if (startKey === endKey) {\n if (startEntityKey && startEntityKey === endEntityKey) {\n var adjustedRemovalRange = getCharacterRemovalRange(contentState.getEntityMap(), startBlock, endBlock, rangeToRemove, removalDirection);\n return removeRangeFromContentState(contentState, adjustedRemovalRange);\n }\n }\n\n var withoutEntities = removeEntitiesAtEdges(contentState, rangeToRemove);\n return removeRangeFromContentState(withoutEntities, rangeToRemove);\n },\n splitBlock: function splitBlock(contentState, selectionState) {\n var withoutEntities = removeEntitiesAtEdges(contentState, selectionState);\n var withoutText = removeRangeFromContentState(withoutEntities, selectionState);\n return splitBlockInContentState(withoutText, withoutText.getSelectionAfter());\n },\n applyInlineStyle: function applyInlineStyle(contentState, selectionState, inlineStyle) {\n return ContentStateInlineStyle.add(contentState, selectionState, inlineStyle);\n },\n removeInlineStyle: function removeInlineStyle(contentState, selectionState, inlineStyle) {\n return ContentStateInlineStyle.remove(contentState, selectionState, inlineStyle);\n },\n setBlockType: function setBlockType(contentState, selectionState, blockType) {\n return modifyBlockForContentState(contentState, selectionState, function (block) {\n return block.merge({\n type: blockType,\n depth: 0\n });\n });\n },\n setBlockData: function setBlockData(contentState, selectionState, blockData) {\n return modifyBlockForContentState(contentState, selectionState, function (block) {\n return block.merge({\n data: blockData\n });\n });\n },\n mergeBlockData: function mergeBlockData(contentState, selectionState, blockData) {\n return modifyBlockForContentState(contentState, selectionState, function (block) {\n return block.merge({\n data: block.getData().merge(blockData)\n });\n });\n },\n applyEntity: function applyEntity(contentState, selectionState, entityKey) {\n var withoutEntities = removeEntitiesAtEdges(contentState, selectionState);\n return applyEntityToContentState(withoutEntities, selectionState, entityKey);\n }\n};\nmodule.exports = DraftModifier;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar KEY_DELIMITER = '-';\nvar DraftOffsetKey = {\n encode: function encode(blockKey, decoratorKey, leafKey) {\n return blockKey + KEY_DELIMITER + decoratorKey + KEY_DELIMITER + leafKey;\n },\n decode: function decode(offsetKey) {\n // Extracts the last two parts of offsetKey and captures the rest in blockKeyParts\n var _offsetKey$split$reve = offsetKey.split(KEY_DELIMITER).reverse(),\n leafKey = _offsetKey$split$reve[0],\n decoratorKey = _offsetKey$split$reve[1],\n blockKeyParts = _offsetKey$split$reve.slice(2);\n\n return {\n // Recomposes the parts of blockKey after reversing them\n blockKey: blockKeyParts.reverse().join(KEY_DELIMITER),\n decoratorKey: parseInt(decoratorKey, 10),\n leafKey: parseInt(leafKey, 10)\n };\n }\n};\nmodule.exports = DraftOffsetKey;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nfunction _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\nvar ContentBlock = require(\"./ContentBlock\");\n\nvar ContentBlockNode = require(\"./ContentBlockNode\");\n\nvar convertFromHTMLToContentBlocks = require(\"./convertFromHTMLToContentBlocks\");\n\nvar generateRandomKey = require(\"./generateRandomKey\");\n\nvar getSafeBodyFromHTML = require(\"./getSafeBodyFromHTML\");\n\nvar gkx = require(\"./gkx\");\n\nvar Immutable = require(\"immutable\");\n\nvar sanitizeDraftText = require(\"./sanitizeDraftText\");\n\nvar List = Immutable.List,\n Repeat = Immutable.Repeat;\nvar experimentalTreeDataSupport = gkx('draft_tree_data_support');\nvar ContentBlockRecord = experimentalTreeDataSupport ? ContentBlockNode : ContentBlock;\nvar DraftPasteProcessor = {\n processHTML: function processHTML(html, blockRenderMap) {\n return convertFromHTMLToContentBlocks(html, getSafeBodyFromHTML, blockRenderMap);\n },\n processText: function processText(textBlocks, character, type) {\n return textBlocks.reduce(function (acc, textLine, index) {\n textLine = sanitizeDraftText(textLine);\n var key = generateRandomKey();\n var blockNodeConfig = {\n key: key,\n type: type,\n text: textLine,\n characterList: List(Repeat(character, textLine.length))\n }; // next block updates previous block\n\n if (experimentalTreeDataSupport && index !== 0) {\n var prevSiblingIndex = index - 1; // update previous block\n\n var previousBlock = acc[prevSiblingIndex] = acc[prevSiblingIndex].merge({\n nextSibling: key\n });\n blockNodeConfig = _objectSpread({}, blockNodeConfig, {\n prevSibling: previousBlock.getKey()\n });\n }\n\n acc.push(new ContentBlockRecord(blockNodeConfig));\n return acc;\n }, []);\n }\n};\nmodule.exports = DraftPasteProcessor;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar TokenizeUtil = require(\"fbjs/lib/TokenizeUtil\");\n\nvar punctuation = TokenizeUtil.getPunctuation(); // The apostrophe and curly single quotes behave in a curious way: when\n// surrounded on both sides by word characters, they behave as word chars; when\n// either neighbor is punctuation or an end of the string, they behave as\n// punctuation.\n\nvar CHAMELEON_CHARS = \"['\\u2018\\u2019]\"; // Remove the underscore, which should count as part of the removable word. The\n// \"chameleon chars\" also count as punctuation in this regex.\n\nvar WHITESPACE_AND_PUNCTUATION = '\\\\s|(?![_])' + punctuation;\nvar DELETE_STRING = '^' + '(?:' + WHITESPACE_AND_PUNCTUATION + ')*' + '(?:' + CHAMELEON_CHARS + '|(?!' + WHITESPACE_AND_PUNCTUATION + ').)*' + '(?:(?!' + WHITESPACE_AND_PUNCTUATION + ').)';\nvar DELETE_REGEX = new RegExp(DELETE_STRING);\nvar BACKSPACE_STRING = '(?:(?!' + WHITESPACE_AND_PUNCTUATION + ').)' + '(?:' + CHAMELEON_CHARS + '|(?!' + WHITESPACE_AND_PUNCTUATION + ').)*' + '(?:' + WHITESPACE_AND_PUNCTUATION + ')*' + '$';\nvar BACKSPACE_REGEX = new RegExp(BACKSPACE_STRING);\n\nfunction getRemovableWord(text, isBackward) {\n var matches = isBackward ? BACKSPACE_REGEX.exec(text) : DELETE_REGEX.exec(text);\n return matches ? matches[0] : text;\n}\n\nvar DraftRemovableWord = {\n getBackward: function getBackward(text) {\n return getRemovableWord(text, true);\n },\n getForward: function getForward(text) {\n return getRemovableWord(text, false);\n }\n};\nmodule.exports = DraftRemovableWord;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar DraftStringKey = {\n stringify: function stringify(key) {\n return '_' + String(key);\n },\n unstringify: function unstringify(key) {\n return key.slice(1);\n }\n};\nmodule.exports = DraftStringKey;","\"use strict\";\n\nfunction _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\n/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n *\n * This is unstable and not part of the public API and should not be used by\n * production systems. This file may be update/removed without notice.\n */\nvar generateRandomKey = require(\"./generateRandomKey\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar traverseInDepthOrder = function traverseInDepthOrder(blocks, fn) {\n var stack = [].concat(blocks).reverse();\n\n while (stack.length) {\n var _block = stack.pop();\n\n fn(_block);\n var children = _block.children;\n !Array.isArray(children) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Invalid tree raw block') : invariant(false) : void 0;\n stack = stack.concat([].concat(children.reverse()));\n }\n};\n\nvar isListBlock = function isListBlock(block) {\n if (!(block && block.type)) {\n return false;\n }\n\n var type = block.type;\n return type === 'unordered-list-item' || type === 'ordered-list-item';\n};\n\nvar addDepthToChildren = function addDepthToChildren(block) {\n if (Array.isArray(block.children)) {\n block.children = block.children.map(function (child) {\n return child.type === block.type ? _objectSpread({}, child, {\n depth: (block.depth || 0) + 1\n }) : child;\n });\n }\n};\n/**\n * This adapter is intended to be be used as an adapter to draft tree data\n *\n * draft state <=====> draft tree state\n */\n\n\nvar DraftTreeAdapter = {\n /**\n * Converts from a tree raw state back to draft raw state\n */\n fromRawTreeStateToRawState: function fromRawTreeStateToRawState(draftTreeState) {\n var blocks = draftTreeState.blocks;\n var transformedBlocks = [];\n !Array.isArray(blocks) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Invalid raw state') : invariant(false) : void 0;\n\n if (!Array.isArray(blocks) || !blocks.length) {\n return draftTreeState;\n }\n\n traverseInDepthOrder(blocks, function (block) {\n var newBlock = _objectSpread({}, block);\n\n if (isListBlock(block)) {\n newBlock.depth = newBlock.depth || 0;\n addDepthToChildren(block); // if it's a non-leaf node, we don't do anything else\n\n if (block.children != null && block.children.length > 0) {\n return;\n }\n }\n\n delete newBlock.children;\n transformedBlocks.push(newBlock);\n });\n draftTreeState.blocks = transformedBlocks;\n return _objectSpread({}, draftTreeState, {\n blocks: transformedBlocks\n });\n },\n\n /**\n * Converts from draft raw state to tree draft state\n */\n fromRawStateToRawTreeState: function fromRawStateToRawTreeState(draftState) {\n var transformedBlocks = [];\n var parentStack = [];\n draftState.blocks.forEach(function (block) {\n var isList = isListBlock(block);\n var depth = block.depth || 0;\n\n var treeBlock = _objectSpread({}, block, {\n children: []\n });\n\n if (!isList) {\n transformedBlocks.push(treeBlock);\n return;\n }\n\n var lastParent = parentStack[0]; // block is non-nested & there are no nested blocks, directly push block\n\n if (lastParent == null && depth === 0) {\n transformedBlocks.push(treeBlock); // block is first nested block or previous nested block is at a lower level\n } else if (lastParent == null || lastParent.depth < depth - 1) {\n // create new parent block\n var newParent = {\n key: generateRandomKey(),\n text: '',\n depth: depth - 1,\n type: block.type,\n children: [],\n entityRanges: [],\n inlineStyleRanges: []\n };\n parentStack.unshift(newParent);\n\n if (depth === 1) {\n // add as a root-level block\n transformedBlocks.push(newParent);\n } else if (lastParent != null) {\n // depth > 1 => also add as previous parent's child\n lastParent.children.push(newParent);\n }\n\n newParent.children.push(treeBlock);\n } else if (lastParent.depth === depth - 1) {\n // add as child of last parent\n lastParent.children.push(treeBlock);\n } else {\n // pop out parents at levels above this one from the parent stack\n while (lastParent != null && lastParent.depth >= depth) {\n parentStack.shift();\n lastParent = parentStack[0];\n }\n\n if (depth > 0) {\n lastParent.children.push(treeBlock);\n } else {\n transformedBlocks.push(treeBlock);\n }\n }\n });\n return _objectSpread({}, draftState, {\n blocks: transformedBlocks\n });\n }\n};\nmodule.exports = DraftTreeAdapter;","\"use strict\";\n\n/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n *\n * This is unstable and not part of the public API and should not be used by\n * production systems. This file may be update/removed without notice.\n */\nvar warning = require(\"fbjs/lib/warning\");\n\nvar DraftTreeInvariants = {\n /**\n * Check if the block is valid\n */\n isValidBlock: function isValidBlock(block, blockMap) {\n var key = block.getKey(); // is its parent's child\n\n var parentKey = block.getParentKey();\n\n if (parentKey != null) {\n var parent = blockMap.get(parentKey);\n\n if (!parent.getChildKeys().includes(key)) {\n process.env.NODE_ENV !== \"production\" ? warning(true, 'Tree is missing parent -> child pointer on %s', key) : void 0;\n return false;\n }\n } // is its children's parent\n\n\n var children = block.getChildKeys().map(function (k) {\n return blockMap.get(k);\n });\n\n if (!children.every(function (c) {\n return c.getParentKey() === key;\n })) {\n process.env.NODE_ENV !== \"production\" ? warning(true, 'Tree is missing child -> parent pointer on %s', key) : void 0;\n return false;\n } // is its previous sibling's next sibling\n\n\n var prevSiblingKey = block.getPrevSiblingKey();\n\n if (prevSiblingKey != null) {\n var prevSibling = blockMap.get(prevSiblingKey);\n\n if (prevSibling.getNextSiblingKey() !== key) {\n process.env.NODE_ENV !== \"production\" ? warning(true, \"Tree is missing nextSibling pointer on %s's prevSibling\", key) : void 0;\n return false;\n }\n } // is its next sibling's previous sibling\n\n\n var nextSiblingKey = block.getNextSiblingKey();\n\n if (nextSiblingKey != null) {\n var nextSibling = blockMap.get(nextSiblingKey);\n\n if (nextSibling.getPrevSiblingKey() !== key) {\n process.env.NODE_ENV !== \"production\" ? warning(true, \"Tree is missing prevSibling pointer on %s's nextSibling\", key) : void 0;\n return false;\n }\n } // no 2-node cycles\n\n\n if (nextSiblingKey !== null && prevSiblingKey !== null) {\n if (prevSiblingKey === nextSiblingKey) {\n process.env.NODE_ENV !== \"production\" ? warning(true, 'Tree has a two-node cycle at %s', key) : void 0;\n return false;\n }\n } // if it's a leaf node, it has text but no children\n\n\n if (block.text != '') {\n if (block.getChildKeys().size > 0) {\n process.env.NODE_ENV !== \"production\" ? warning(true, 'Leaf node %s has children', key) : void 0;\n return false;\n }\n }\n\n return true;\n },\n\n /**\n * Checks that this is a connected tree on all the blocks\n * starting from the first block, traversing nextSibling and child pointers\n * should be a tree (preorder traversal - parent, then children)\n * num of connected node === number of blocks\n */\n isConnectedTree: function isConnectedTree(blockMap) {\n // exactly one node has no previous sibling + no parent\n var eligibleFirstNodes = blockMap.toArray().filter(function (block) {\n return block.getParentKey() == null && block.getPrevSiblingKey() == null;\n });\n\n if (eligibleFirstNodes.length !== 1) {\n process.env.NODE_ENV !== \"production\" ? warning(true, 'Tree is not connected. More or less than one first node') : void 0;\n return false;\n }\n\n var firstNode = eligibleFirstNodes.shift();\n var nodesSeen = 0;\n var currentKey = firstNode.getKey();\n var visitedStack = [];\n\n while (currentKey != null) {\n var currentNode = blockMap.get(currentKey);\n var childKeys = currentNode.getChildKeys();\n var nextSiblingKey = currentNode.getNextSiblingKey(); // if the node has children, add parent's next sibling to stack and go to children\n\n if (childKeys.size > 0) {\n if (nextSiblingKey != null) {\n visitedStack.unshift(nextSiblingKey);\n }\n\n var children = childKeys.map(function (k) {\n return blockMap.get(k);\n });\n\n var _firstNode = children.find(function (block) {\n return block.getPrevSiblingKey() == null;\n });\n\n if (_firstNode == null) {\n process.env.NODE_ENV !== \"production\" ? warning(true, '%s has no first child', currentKey) : void 0;\n return false;\n }\n\n currentKey = _firstNode.getKey(); // TODO(T32490138): Deal with multi-node cycles here\n } else {\n if (currentNode.getNextSiblingKey() != null) {\n currentKey = currentNode.getNextSiblingKey();\n } else {\n currentKey = visitedStack.shift();\n }\n }\n\n nodesSeen++;\n }\n\n if (nodesSeen !== blockMap.size) {\n process.env.NODE_ENV !== \"production\" ? warning(true, 'Tree is not connected. %s nodes were seen instead of %s', nodesSeen, blockMap.size) : void 0;\n return false;\n }\n\n return true;\n },\n\n /**\n * Checks that the block map is a connected tree with valid blocks\n */\n isValidTree: function isValidTree(blockMap) {\n var _this = this;\n\n var blocks = blockMap.toArray();\n\n if (!blocks.every(function (block) {\n return _this.isValidBlock(block, blockMap);\n })) {\n return false;\n }\n\n return this.isConnectedTree(blockMap);\n }\n};\nmodule.exports = DraftTreeInvariants;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar UnicodeBidiService = require(\"fbjs/lib/UnicodeBidiService\");\n\nvar Immutable = require(\"immutable\");\n\nvar nullthrows = require(\"fbjs/lib/nullthrows\");\n\nvar OrderedMap = Immutable.OrderedMap;\nvar bidiService;\nvar EditorBidiService = {\n getDirectionMap: function getDirectionMap(content, prevBidiMap) {\n if (!bidiService) {\n bidiService = new UnicodeBidiService();\n } else {\n bidiService.reset();\n }\n\n var blockMap = content.getBlockMap();\n var nextBidi = blockMap.valueSeq().map(function (block) {\n return nullthrows(bidiService).getDirection(block.getText());\n });\n var bidiMap = OrderedMap(blockMap.keySeq().zip(nextBidi));\n\n if (prevBidiMap != null && Immutable.is(prevBidiMap, bidiMap)) {\n return prevBidiMap;\n }\n\n return bidiMap;\n }\n};\nmodule.exports = EditorBidiService;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nfunction _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\nvar BlockTree = require(\"./BlockTree\");\n\nvar ContentState = require(\"./ContentState\");\n\nvar EditorBidiService = require(\"./EditorBidiService\");\n\nvar SelectionState = require(\"./SelectionState\");\n\nvar Immutable = require(\"immutable\");\n\nvar OrderedSet = Immutable.OrderedSet,\n Record = Immutable.Record,\n Stack = Immutable.Stack,\n OrderedMap = Immutable.OrderedMap,\n List = Immutable.List; // When configuring an editor, the user can chose to provide or not provide\n// basically all keys. `currentContent` varies, so this type doesn't include it.\n// (See the types defined below.)\n\nvar defaultRecord = {\n allowUndo: true,\n currentContent: null,\n decorator: null,\n directionMap: null,\n forceSelection: false,\n inCompositionMode: false,\n inlineStyleOverride: null,\n lastChangeType: null,\n nativelyRenderedContent: null,\n redoStack: Stack(),\n selection: null,\n treeMap: null,\n undoStack: Stack()\n};\nvar EditorStateRecord = Record(defaultRecord);\n\nvar EditorState = /*#__PURE__*/function () {\n EditorState.createEmpty = function createEmpty(decorator) {\n return this.createWithText('', decorator);\n };\n\n EditorState.createWithText = function createWithText(text, decorator) {\n return EditorState.createWithContent(ContentState.createFromText(text), decorator);\n };\n\n EditorState.createWithContent = function createWithContent(contentState, decorator) {\n if (contentState.getBlockMap().count() === 0) {\n return EditorState.createEmpty(decorator);\n }\n\n var firstKey = contentState.getBlockMap().first().getKey();\n return EditorState.create({\n currentContent: contentState,\n undoStack: Stack(),\n redoStack: Stack(),\n decorator: decorator || null,\n selection: SelectionState.createEmpty(firstKey)\n });\n };\n\n EditorState.create = function create(config) {\n var currentContent = config.currentContent,\n decorator = config.decorator;\n\n var recordConfig = _objectSpread({}, config, {\n treeMap: generateNewTreeMap(currentContent, decorator),\n directionMap: EditorBidiService.getDirectionMap(currentContent)\n });\n\n return new EditorState(new EditorStateRecord(recordConfig));\n };\n\n EditorState.fromJS = function fromJS(config) {\n return new EditorState(new EditorStateRecord(_objectSpread({}, config, {\n directionMap: config.directionMap != null ? OrderedMap(config.directionMap) : config.directionMap,\n inlineStyleOverride: config.inlineStyleOverride != null ? OrderedSet(config.inlineStyleOverride) : config.inlineStyleOverride,\n nativelyRenderedContent: config.nativelyRenderedContent != null ? ContentState.fromJS(config.nativelyRenderedContent) : config.nativelyRenderedContent,\n redoStack: config.redoStack != null ? Stack(config.redoStack.map(function (v) {\n return ContentState.fromJS(v);\n })) : config.redoStack,\n selection: config.selection != null ? new SelectionState(config.selection) : config.selection,\n treeMap: config.treeMap != null ? OrderedMap(config.treeMap).map(function (v) {\n return List(v).map(function (v) {\n return BlockTree.fromJS(v);\n });\n }) : config.treeMap,\n undoStack: config.undoStack != null ? Stack(config.undoStack.map(function (v) {\n return ContentState.fromJS(v);\n })) : config.undoStack,\n currentContent: ContentState.fromJS(config.currentContent)\n })));\n };\n\n EditorState.set = function set(editorState, put) {\n var map = editorState.getImmutable().withMutations(function (state) {\n var existingDecorator = state.get('decorator');\n var decorator = existingDecorator;\n\n if (put.decorator === null) {\n decorator = null;\n } else if (put.decorator) {\n decorator = put.decorator;\n }\n\n var newContent = put.currentContent || editorState.getCurrentContent();\n\n if (decorator !== existingDecorator) {\n var treeMap = state.get('treeMap');\n var newTreeMap;\n\n if (decorator && existingDecorator) {\n newTreeMap = regenerateTreeForNewDecorator(newContent, newContent.getBlockMap(), treeMap, decorator, existingDecorator);\n } else {\n newTreeMap = generateNewTreeMap(newContent, decorator);\n }\n\n state.merge({\n decorator: decorator,\n treeMap: newTreeMap,\n nativelyRenderedContent: null\n });\n return;\n }\n\n var existingContent = editorState.getCurrentContent();\n\n if (newContent !== existingContent) {\n state.set('treeMap', regenerateTreeForNewBlocks(editorState, newContent.getBlockMap(), newContent.getEntityMap(), decorator));\n }\n\n state.merge(put);\n });\n return new EditorState(map);\n };\n\n var _proto = EditorState.prototype;\n\n _proto.toJS = function toJS() {\n return this.getImmutable().toJS();\n };\n\n _proto.getAllowUndo = function getAllowUndo() {\n return this.getImmutable().get('allowUndo');\n };\n\n _proto.getCurrentContent = function getCurrentContent() {\n return this.getImmutable().get('currentContent');\n };\n\n _proto.getUndoStack = function getUndoStack() {\n return this.getImmutable().get('undoStack');\n };\n\n _proto.getRedoStack = function getRedoStack() {\n return this.getImmutable().get('redoStack');\n };\n\n _proto.getSelection = function getSelection() {\n return this.getImmutable().get('selection');\n };\n\n _proto.getDecorator = function getDecorator() {\n return this.getImmutable().get('decorator');\n };\n\n _proto.isInCompositionMode = function isInCompositionMode() {\n return this.getImmutable().get('inCompositionMode');\n };\n\n _proto.mustForceSelection = function mustForceSelection() {\n return this.getImmutable().get('forceSelection');\n };\n\n _proto.getNativelyRenderedContent = function getNativelyRenderedContent() {\n return this.getImmutable().get('nativelyRenderedContent');\n };\n\n _proto.getLastChangeType = function getLastChangeType() {\n return this.getImmutable().get('lastChangeType');\n }\n /**\n * While editing, the user may apply inline style commands with a collapsed\n * cursor, intending to type text that adopts the specified style. In this\n * case, we track the specified style as an \"override\" that takes precedence\n * over the inline style of the text adjacent to the cursor.\n *\n * If null, there is no override in place.\n */\n ;\n\n _proto.getInlineStyleOverride = function getInlineStyleOverride() {\n return this.getImmutable().get('inlineStyleOverride');\n };\n\n EditorState.setInlineStyleOverride = function setInlineStyleOverride(editorState, inlineStyleOverride) {\n return EditorState.set(editorState, {\n inlineStyleOverride: inlineStyleOverride\n });\n }\n /**\n * Get the appropriate inline style for the editor state. If an\n * override is in place, use it. Otherwise, the current style is\n * based on the location of the selection state.\n */\n ;\n\n _proto.getCurrentInlineStyle = function getCurrentInlineStyle() {\n var override = this.getInlineStyleOverride();\n\n if (override != null) {\n return override;\n }\n\n var content = this.getCurrentContent();\n var selection = this.getSelection();\n\n if (selection.isCollapsed()) {\n return getInlineStyleForCollapsedSelection(content, selection);\n }\n\n return getInlineStyleForNonCollapsedSelection(content, selection);\n };\n\n _proto.getBlockTree = function getBlockTree(blockKey) {\n return this.getImmutable().getIn(['treeMap', blockKey]);\n };\n\n _proto.isSelectionAtStartOfContent = function isSelectionAtStartOfContent() {\n var firstKey = this.getCurrentContent().getBlockMap().first().getKey();\n return this.getSelection().hasEdgeWithin(firstKey, 0, 0);\n };\n\n _proto.isSelectionAtEndOfContent = function isSelectionAtEndOfContent() {\n var content = this.getCurrentContent();\n var blockMap = content.getBlockMap();\n var last = blockMap.last();\n var end = last.getLength();\n return this.getSelection().hasEdgeWithin(last.getKey(), end, end);\n };\n\n _proto.getDirectionMap = function getDirectionMap() {\n return this.getImmutable().get('directionMap');\n }\n /**\n * Incorporate native DOM selection changes into the EditorState. This\n * method can be used when we simply want to accept whatever the DOM\n * has given us to represent selection, and we do not need to re-render\n * the editor.\n *\n * To forcibly move the DOM selection, see `EditorState.forceSelection`.\n */\n ;\n\n EditorState.acceptSelection = function acceptSelection(editorState, selection) {\n return updateSelection(editorState, selection, false);\n }\n /**\n * At times, we need to force the DOM selection to be where we\n * need it to be. This can occur when the anchor or focus nodes\n * are non-text nodes, for instance. In this case, we want to trigger\n * a re-render of the editor, which in turn forces selection into\n * the correct place in the DOM. The `forceSelection` method\n * accomplishes this.\n *\n * This method should be used in cases where you need to explicitly\n * move the DOM selection from one place to another without a change\n * in ContentState.\n */\n ;\n\n EditorState.forceSelection = function forceSelection(editorState, selection) {\n if (!selection.getHasFocus()) {\n selection = selection.set('hasFocus', true);\n }\n\n return updateSelection(editorState, selection, true);\n }\n /**\n * Move selection to the end of the editor without forcing focus.\n */\n ;\n\n EditorState.moveSelectionToEnd = function moveSelectionToEnd(editorState) {\n var content = editorState.getCurrentContent();\n var lastBlock = content.getLastBlock();\n var lastKey = lastBlock.getKey();\n var length = lastBlock.getLength();\n return EditorState.acceptSelection(editorState, new SelectionState({\n anchorKey: lastKey,\n anchorOffset: length,\n focusKey: lastKey,\n focusOffset: length,\n isBackward: false\n }));\n }\n /**\n * Force focus to the end of the editor. This is useful in scenarios\n * where we want to programmatically focus the input and it makes sense\n * to allow the user to continue working seamlessly.\n */\n ;\n\n EditorState.moveFocusToEnd = function moveFocusToEnd(editorState) {\n var afterSelectionMove = EditorState.moveSelectionToEnd(editorState);\n return EditorState.forceSelection(afterSelectionMove, afterSelectionMove.getSelection());\n }\n /**\n * Push the current ContentState onto the undo stack if it should be\n * considered a boundary state, and set the provided ContentState as the\n * new current content.\n */\n ;\n\n EditorState.push = function push(editorState, contentState, changeType) {\n var forceSelection = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : true;\n\n if (editorState.getCurrentContent() === contentState) {\n return editorState;\n }\n\n var directionMap = EditorBidiService.getDirectionMap(contentState, editorState.getDirectionMap());\n\n if (!editorState.getAllowUndo()) {\n return EditorState.set(editorState, {\n currentContent: contentState,\n directionMap: directionMap,\n lastChangeType: changeType,\n selection: contentState.getSelectionAfter(),\n forceSelection: forceSelection,\n inlineStyleOverride: null\n });\n }\n\n var selection = editorState.getSelection();\n var currentContent = editorState.getCurrentContent();\n var undoStack = editorState.getUndoStack();\n var newContent = contentState;\n\n if (selection !== currentContent.getSelectionAfter() || mustBecomeBoundary(editorState, changeType)) {\n undoStack = undoStack.push(currentContent);\n newContent = newContent.set('selectionBefore', selection);\n } else if (changeType === 'insert-characters' || changeType === 'backspace-character' || changeType === 'delete-character') {\n // Preserve the previous selection.\n newContent = newContent.set('selectionBefore', currentContent.getSelectionBefore());\n }\n\n var inlineStyleOverride = editorState.getInlineStyleOverride(); // Don't discard inline style overrides for the following change types:\n\n var overrideChangeTypes = ['adjust-depth', 'change-block-type', 'split-block'];\n\n if (overrideChangeTypes.indexOf(changeType) === -1) {\n inlineStyleOverride = null;\n }\n\n var editorStateChanges = {\n currentContent: newContent,\n directionMap: directionMap,\n undoStack: undoStack,\n redoStack: Stack(),\n lastChangeType: changeType,\n selection: contentState.getSelectionAfter(),\n forceSelection: forceSelection,\n inlineStyleOverride: inlineStyleOverride\n };\n return EditorState.set(editorState, editorStateChanges);\n }\n /**\n * Make the top ContentState in the undo stack the new current content and\n * push the current content onto the redo stack.\n */\n ;\n\n EditorState.undo = function undo(editorState) {\n if (!editorState.getAllowUndo()) {\n return editorState;\n }\n\n var undoStack = editorState.getUndoStack();\n var newCurrentContent = undoStack.peek();\n\n if (!newCurrentContent) {\n return editorState;\n }\n\n var currentContent = editorState.getCurrentContent();\n var directionMap = EditorBidiService.getDirectionMap(newCurrentContent, editorState.getDirectionMap());\n return EditorState.set(editorState, {\n currentContent: newCurrentContent,\n directionMap: directionMap,\n undoStack: undoStack.shift(),\n redoStack: editorState.getRedoStack().push(currentContent),\n forceSelection: true,\n inlineStyleOverride: null,\n lastChangeType: 'undo',\n nativelyRenderedContent: null,\n selection: currentContent.getSelectionBefore()\n });\n }\n /**\n * Make the top ContentState in the redo stack the new current content and\n * push the current content onto the undo stack.\n */\n ;\n\n EditorState.redo = function redo(editorState) {\n if (!editorState.getAllowUndo()) {\n return editorState;\n }\n\n var redoStack = editorState.getRedoStack();\n var newCurrentContent = redoStack.peek();\n\n if (!newCurrentContent) {\n return editorState;\n }\n\n var currentContent = editorState.getCurrentContent();\n var directionMap = EditorBidiService.getDirectionMap(newCurrentContent, editorState.getDirectionMap());\n return EditorState.set(editorState, {\n currentContent: newCurrentContent,\n directionMap: directionMap,\n undoStack: editorState.getUndoStack().push(currentContent),\n redoStack: redoStack.shift(),\n forceSelection: true,\n inlineStyleOverride: null,\n lastChangeType: 'redo',\n nativelyRenderedContent: null,\n selection: newCurrentContent.getSelectionAfter()\n });\n }\n /**\n * Not for public consumption.\n */\n ;\n\n function EditorState(immutable) {\n _defineProperty(this, \"_immutable\", void 0);\n\n this._immutable = immutable;\n }\n /**\n * Not for public consumption.\n */\n\n\n _proto.getImmutable = function getImmutable() {\n return this._immutable;\n };\n\n return EditorState;\n}();\n/**\n * Set the supplied SelectionState as the new current selection, and set\n * the `force` flag to trigger manual selection placement by the view.\n */\n\n\nfunction updateSelection(editorState, selection, forceSelection) {\n return EditorState.set(editorState, {\n selection: selection,\n forceSelection: forceSelection,\n nativelyRenderedContent: null,\n inlineStyleOverride: null\n });\n}\n/**\n * Regenerate the entire tree map for a given ContentState and decorator.\n * Returns an OrderedMap that maps all available ContentBlock objects.\n */\n\n\nfunction generateNewTreeMap(contentState, decorator) {\n return contentState.getBlockMap().map(function (block) {\n return BlockTree.generate(contentState, block, decorator);\n }).toOrderedMap();\n}\n/**\n * Regenerate tree map objects for all ContentBlocks that have changed\n * between the current editorState and newContent. Returns an OrderedMap\n * with only changed regenerated tree map objects.\n */\n\n\nfunction regenerateTreeForNewBlocks(editorState, newBlockMap, newEntityMap, decorator) {\n var contentState = editorState.getCurrentContent().set('entityMap', newEntityMap);\n var prevBlockMap = contentState.getBlockMap();\n var prevTreeMap = editorState.getImmutable().get('treeMap');\n return prevTreeMap.merge(newBlockMap.toSeq().filter(function (block, key) {\n return block !== prevBlockMap.get(key);\n }).map(function (block) {\n return BlockTree.generate(contentState, block, decorator);\n }));\n}\n/**\n * Generate tree map objects for a new decorator object, preserving any\n * decorations that are unchanged from the previous decorator.\n *\n * Note that in order for this to perform optimally, decoration Lists for\n * decorators should be preserved when possible to allow for direct immutable\n * List comparison.\n */\n\n\nfunction regenerateTreeForNewDecorator(content, blockMap, previousTreeMap, decorator, existingDecorator) {\n return previousTreeMap.merge(blockMap.toSeq().filter(function (block) {\n return decorator.getDecorations(block, content) !== existingDecorator.getDecorations(block, content);\n }).map(function (block) {\n return BlockTree.generate(content, block, decorator);\n }));\n}\n/**\n * Return whether a change should be considered a boundary state, given\n * the previous change type. Allows us to discard potential boundary states\n * during standard typing or deletion behavior.\n */\n\n\nfunction mustBecomeBoundary(editorState, changeType) {\n var lastChangeType = editorState.getLastChangeType();\n return changeType !== lastChangeType || changeType !== 'insert-characters' && changeType !== 'backspace-character' && changeType !== 'delete-character';\n}\n\nfunction getInlineStyleForCollapsedSelection(content, selection) {\n var startKey = selection.getStartKey();\n var startOffset = selection.getStartOffset();\n var startBlock = content.getBlockForKey(startKey); // If the cursor is not at the start of the block, look backward to\n // preserve the style of the preceding character.\n\n if (startOffset > 0) {\n return startBlock.getInlineStyleAt(startOffset - 1);\n } // The caret is at position zero in this block. If the block has any\n // text at all, use the style of the first character.\n\n\n if (startBlock.getLength()) {\n return startBlock.getInlineStyleAt(0);\n } // Otherwise, look upward in the document to find the closest character.\n\n\n return lookUpwardForInlineStyle(content, startKey);\n}\n\nfunction getInlineStyleForNonCollapsedSelection(content, selection) {\n var startKey = selection.getStartKey();\n var startOffset = selection.getStartOffset();\n var startBlock = content.getBlockForKey(startKey); // If there is a character just inside the selection, use its style.\n\n if (startOffset < startBlock.getLength()) {\n return startBlock.getInlineStyleAt(startOffset);\n } // Check if the selection at the end of a non-empty block. Use the last\n // style in the block.\n\n\n if (startOffset > 0) {\n return startBlock.getInlineStyleAt(startOffset - 1);\n } // Otherwise, look upward in the document to find the closest character.\n\n\n return lookUpwardForInlineStyle(content, startKey);\n}\n\nfunction lookUpwardForInlineStyle(content, fromKey) {\n var lastNonEmpty = content.getBlockMap().reverse().skipUntil(function (_, k) {\n return k === fromKey;\n }).skip(1).skipUntil(function (block, _) {\n return block.getLength();\n }).first();\n\n if (lastNonEmpty) {\n return lastNonEmpty.getInlineStyleAt(lastNonEmpty.getLength() - 1);\n }\n\n return OrderedSet();\n}\n\nmodule.exports = EditorState;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar UserAgent = require(\"fbjs/lib/UserAgent\");\n\nvar isSoftNewlineEvent = require(\"./isSoftNewlineEvent\");\n\nvar isOSX = UserAgent.isPlatform('Mac OS X');\nvar KeyBindingUtil = {\n /**\n * Check whether the ctrlKey modifier is *not* being used in conjunction with\n * the altKey modifier. If they are combined, the result is an `altGraph`\n * key modifier, which should not be handled by this set of key bindings.\n */\n isCtrlKeyCommand: function isCtrlKeyCommand(e) {\n return !!e.ctrlKey && !e.altKey;\n },\n isOptionKeyCommand: function isOptionKeyCommand(e) {\n return isOSX && e.altKey;\n },\n usesMacOSHeuristics: function usesMacOSHeuristics() {\n return isOSX;\n },\n hasCommandModifier: function hasCommandModifier(e) {\n return isOSX ? !!e.metaKey && !e.altKey : KeyBindingUtil.isCtrlKeyCommand(e);\n },\n isSoftNewlineEvent: isSoftNewlineEvent\n};\nmodule.exports = KeyBindingUtil;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar DraftModifier = require(\"./DraftModifier\");\n\nvar EditorState = require(\"./EditorState\");\n\nvar adjustBlockDepthForContentState = require(\"./adjustBlockDepthForContentState\");\n\nvar nullthrows = require(\"fbjs/lib/nullthrows\");\n\nvar RichTextEditorUtil = {\n currentBlockContainsLink: function currentBlockContainsLink(editorState) {\n var selection = editorState.getSelection();\n var contentState = editorState.getCurrentContent();\n var entityMap = contentState.getEntityMap();\n return contentState.getBlockForKey(selection.getAnchorKey()).getCharacterList().slice(selection.getStartOffset(), selection.getEndOffset()).some(function (v) {\n var entity = v.getEntity();\n return !!entity && entityMap.__get(entity).getType() === 'LINK';\n });\n },\n getCurrentBlockType: function getCurrentBlockType(editorState) {\n var selection = editorState.getSelection();\n return editorState.getCurrentContent().getBlockForKey(selection.getStartKey()).getType();\n },\n getDataObjectForLinkURL: function getDataObjectForLinkURL(uri) {\n return {\n url: uri.toString()\n };\n },\n handleKeyCommand: function handleKeyCommand(editorState, command, eventTimeStamp) {\n switch (command) {\n case 'bold':\n return RichTextEditorUtil.toggleInlineStyle(editorState, 'BOLD');\n\n case 'italic':\n return RichTextEditorUtil.toggleInlineStyle(editorState, 'ITALIC');\n\n case 'underline':\n return RichTextEditorUtil.toggleInlineStyle(editorState, 'UNDERLINE');\n\n case 'code':\n return RichTextEditorUtil.toggleCode(editorState);\n\n case 'backspace':\n case 'backspace-word':\n case 'backspace-to-start-of-line':\n return RichTextEditorUtil.onBackspace(editorState);\n\n case 'delete':\n case 'delete-word':\n case 'delete-to-end-of-block':\n return RichTextEditorUtil.onDelete(editorState);\n\n default:\n // they may have custom editor commands; ignore those\n return null;\n }\n },\n insertSoftNewline: function insertSoftNewline(editorState) {\n var contentState = DraftModifier.insertText(editorState.getCurrentContent(), editorState.getSelection(), '\\n', editorState.getCurrentInlineStyle(), null);\n var newEditorState = EditorState.push(editorState, contentState, 'insert-characters');\n return EditorState.forceSelection(newEditorState, contentState.getSelectionAfter());\n },\n\n /**\n * For collapsed selections at the start of styled blocks, backspace should\n * just remove the existing style.\n */\n onBackspace: function onBackspace(editorState) {\n var selection = editorState.getSelection();\n\n if (!selection.isCollapsed() || selection.getAnchorOffset() || selection.getFocusOffset()) {\n return null;\n } // First, try to remove a preceding atomic block.\n\n\n var content = editorState.getCurrentContent();\n var startKey = selection.getStartKey();\n var blockBefore = content.getBlockBefore(startKey);\n\n if (blockBefore && blockBefore.getType() === 'atomic') {\n var blockMap = content.getBlockMap()[\"delete\"](blockBefore.getKey());\n var withoutAtomicBlock = content.merge({\n blockMap: blockMap,\n selectionAfter: selection\n });\n\n if (withoutAtomicBlock !== content) {\n return EditorState.push(editorState, withoutAtomicBlock, 'remove-range');\n }\n } // If that doesn't succeed, try to remove the current block style.\n\n\n var withoutBlockStyle = RichTextEditorUtil.tryToRemoveBlockStyle(editorState);\n\n if (withoutBlockStyle) {\n return EditorState.push(editorState, withoutBlockStyle, 'change-block-type');\n }\n\n return null;\n },\n onDelete: function onDelete(editorState) {\n var selection = editorState.getSelection();\n\n if (!selection.isCollapsed()) {\n return null;\n }\n\n var content = editorState.getCurrentContent();\n var startKey = selection.getStartKey();\n var block = content.getBlockForKey(startKey);\n var length = block.getLength(); // The cursor is somewhere within the text. Behave normally.\n\n if (selection.getStartOffset() < length) {\n return null;\n }\n\n var blockAfter = content.getBlockAfter(startKey);\n\n if (!blockAfter || blockAfter.getType() !== 'atomic') {\n return null;\n }\n\n var atomicBlockTarget = selection.merge({\n focusKey: blockAfter.getKey(),\n focusOffset: blockAfter.getLength()\n });\n var withoutAtomicBlock = DraftModifier.removeRange(content, atomicBlockTarget, 'forward');\n\n if (withoutAtomicBlock !== content) {\n return EditorState.push(editorState, withoutAtomicBlock, 'remove-range');\n }\n\n return null;\n },\n onTab: function onTab(event, editorState, maxDepth) {\n var selection = editorState.getSelection();\n var key = selection.getAnchorKey();\n\n if (key !== selection.getFocusKey()) {\n return editorState;\n }\n\n var content = editorState.getCurrentContent();\n var block = content.getBlockForKey(key);\n var type = block.getType();\n\n if (type !== 'unordered-list-item' && type !== 'ordered-list-item') {\n return editorState;\n }\n\n event.preventDefault();\n var depth = block.getDepth();\n\n if (!event.shiftKey && depth === maxDepth) {\n return editorState;\n }\n\n var withAdjustment = adjustBlockDepthForContentState(content, selection, event.shiftKey ? -1 : 1, maxDepth);\n return EditorState.push(editorState, withAdjustment, 'adjust-depth');\n },\n toggleBlockType: function toggleBlockType(editorState, blockType) {\n var selection = editorState.getSelection();\n var startKey = selection.getStartKey();\n var endKey = selection.getEndKey();\n var content = editorState.getCurrentContent();\n var target = selection; // Triple-click can lead to a selection that includes offset 0 of the\n // following block. The `SelectionState` for this case is accurate, but\n // we should avoid toggling block type for the trailing block because it\n // is a confusing interaction.\n\n if (startKey !== endKey && selection.getEndOffset() === 0) {\n var blockBefore = nullthrows(content.getBlockBefore(endKey));\n endKey = blockBefore.getKey();\n target = target.merge({\n anchorKey: startKey,\n anchorOffset: selection.getStartOffset(),\n focusKey: endKey,\n focusOffset: blockBefore.getLength(),\n isBackward: false\n });\n }\n\n var hasAtomicBlock = content.getBlockMap().skipWhile(function (_, k) {\n return k !== startKey;\n }).reverse().skipWhile(function (_, k) {\n return k !== endKey;\n }).some(function (v) {\n return v.getType() === 'atomic';\n });\n\n if (hasAtomicBlock) {\n return editorState;\n }\n\n var typeToSet = content.getBlockForKey(startKey).getType() === blockType ? 'unstyled' : blockType;\n return EditorState.push(editorState, DraftModifier.setBlockType(content, target, typeToSet), 'change-block-type');\n },\n toggleCode: function toggleCode(editorState) {\n var selection = editorState.getSelection();\n var anchorKey = selection.getAnchorKey();\n var focusKey = selection.getFocusKey();\n\n if (selection.isCollapsed() || anchorKey !== focusKey) {\n return RichTextEditorUtil.toggleBlockType(editorState, 'code-block');\n }\n\n return RichTextEditorUtil.toggleInlineStyle(editorState, 'CODE');\n },\n\n /**\n * Toggle the specified inline style for the selection. If the\n * user's selection is collapsed, apply or remove the style for the\n * internal state. If it is not collapsed, apply the change directly\n * to the document state.\n */\n toggleInlineStyle: function toggleInlineStyle(editorState, inlineStyle) {\n var selection = editorState.getSelection();\n var currentStyle = editorState.getCurrentInlineStyle(); // If the selection is collapsed, toggle the specified style on or off and\n // set the result as the new inline style override. This will then be\n // used as the inline style for the next character to be inserted.\n\n if (selection.isCollapsed()) {\n return EditorState.setInlineStyleOverride(editorState, currentStyle.has(inlineStyle) ? currentStyle.remove(inlineStyle) : currentStyle.add(inlineStyle));\n } // If characters are selected, immediately apply or remove the\n // inline style on the document state itself.\n\n\n var content = editorState.getCurrentContent();\n var newContent; // If the style is already present for the selection range, remove it.\n // Otherwise, apply it.\n\n if (currentStyle.has(inlineStyle)) {\n newContent = DraftModifier.removeInlineStyle(content, selection, inlineStyle);\n } else {\n newContent = DraftModifier.applyInlineStyle(content, selection, inlineStyle);\n }\n\n return EditorState.push(editorState, newContent, 'change-inline-style');\n },\n toggleLink: function toggleLink(editorState, targetSelection, entityKey) {\n var withoutLink = DraftModifier.applyEntity(editorState.getCurrentContent(), targetSelection, entityKey);\n return EditorState.push(editorState, withoutLink, 'apply-entity');\n },\n\n /**\n * When a collapsed cursor is at the start of a styled block, changes block\n * type to 'unstyled'. Returns null if selection does not meet that criteria.\n */\n tryToRemoveBlockStyle: function tryToRemoveBlockStyle(editorState) {\n var selection = editorState.getSelection();\n var offset = selection.getAnchorOffset();\n\n if (selection.isCollapsed() && offset === 0) {\n var key = selection.getAnchorKey();\n var content = editorState.getCurrentContent();\n var block = content.getBlockForKey(key);\n var type = block.getType();\n var blockBefore = content.getBlockBefore(key);\n\n if (type === 'code-block' && blockBefore && blockBefore.getType() === 'code-block' && blockBefore.getLength() !== 0) {\n return null;\n }\n\n if (type !== 'unstyled') {\n return DraftModifier.setBlockType(content, selection, 'unstyled');\n }\n }\n\n return null;\n }\n};\nmodule.exports = RichTextEditorUtil;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar DraftModifier = require(\"./DraftModifier\");\n\nvar EditorState = require(\"./EditorState\");\n\nvar getContentStateFragment = require(\"./getContentStateFragment\");\n\nvar nullthrows = require(\"fbjs/lib/nullthrows\");\n\nvar clipboard = null;\n/**\n * Some systems offer a \"secondary\" clipboard to allow quick internal cut\n * and paste behavior. For instance, Ctrl+K (cut) and Ctrl+Y (paste).\n */\n\nvar SecondaryClipboard = {\n cut: function cut(editorState) {\n var content = editorState.getCurrentContent();\n var selection = editorState.getSelection();\n var targetRange = null;\n\n if (selection.isCollapsed()) {\n var anchorKey = selection.getAnchorKey();\n var blockEnd = content.getBlockForKey(anchorKey).getLength();\n\n if (blockEnd === selection.getAnchorOffset()) {\n var keyAfter = content.getKeyAfter(anchorKey);\n\n if (keyAfter == null) {\n return editorState;\n }\n\n targetRange = selection.set('focusKey', keyAfter).set('focusOffset', 0);\n } else {\n targetRange = selection.set('focusOffset', blockEnd);\n }\n } else {\n targetRange = selection;\n }\n\n targetRange = nullthrows(targetRange); // TODO: This should actually append to the current state when doing\n // successive ^K commands without any other cursor movement\n\n clipboard = getContentStateFragment(content, targetRange);\n var afterRemoval = DraftModifier.removeRange(content, targetRange, 'forward');\n\n if (afterRemoval === content) {\n return editorState;\n }\n\n return EditorState.push(editorState, afterRemoval, 'remove-range');\n },\n paste: function paste(editorState) {\n if (!clipboard) {\n return editorState;\n }\n\n var newContent = DraftModifier.replaceWithFragment(editorState.getCurrentContent(), editorState.getSelection(), clipboard);\n return EditorState.push(editorState, newContent, 'insert-fragment');\n }\n};\nmodule.exports = SecondaryClipboard;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nfunction _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\nvar Immutable = require(\"immutable\");\n\nvar Record = Immutable.Record;\nvar defaultRecord = {\n anchorKey: '',\n anchorOffset: 0,\n focusKey: '',\n focusOffset: 0,\n isBackward: false,\n hasFocus: false\n};\n/* $FlowFixMe[unclear-type] This comment suppresses an error found when\n * automatically adding a type annotation with the codemod Komodo/Annotate_\n * exports. To see the error delete this comment and run Flow. */\n\nvar SelectionStateRecord = Record(defaultRecord);\n\nvar SelectionState = /*#__PURE__*/function (_SelectionStateRecord) {\n _inheritsLoose(SelectionState, _SelectionStateRecord);\n\n function SelectionState() {\n return _SelectionStateRecord.apply(this, arguments) || this;\n }\n\n var _proto = SelectionState.prototype;\n\n _proto.serialize = function serialize() {\n return 'Anchor: ' + this.getAnchorKey() + ':' + this.getAnchorOffset() + ', ' + 'Focus: ' + this.getFocusKey() + ':' + this.getFocusOffset() + ', ' + 'Is Backward: ' + String(this.getIsBackward()) + ', ' + 'Has Focus: ' + String(this.getHasFocus());\n };\n\n _proto.getAnchorKey = function getAnchorKey() {\n return this.get('anchorKey');\n };\n\n _proto.getAnchorOffset = function getAnchorOffset() {\n return this.get('anchorOffset');\n };\n\n _proto.getFocusKey = function getFocusKey() {\n return this.get('focusKey');\n };\n\n _proto.getFocusOffset = function getFocusOffset() {\n return this.get('focusOffset');\n };\n\n _proto.getIsBackward = function getIsBackward() {\n return this.get('isBackward');\n };\n\n _proto.getHasFocus = function getHasFocus() {\n return this.get('hasFocus');\n }\n /**\n * Return whether the specified range overlaps with an edge of the\n * SelectionState.\n */\n ;\n\n _proto.hasEdgeWithin = function hasEdgeWithin(blockKey, start, end) {\n var anchorKey = this.getAnchorKey();\n var focusKey = this.getFocusKey();\n\n if (anchorKey === focusKey && anchorKey === blockKey) {\n var selectionStart = this.getStartOffset();\n var selectionEnd = this.getEndOffset();\n return start <= selectionStart && selectionStart <= end || // selectionStart is between start and end, or\n start <= selectionEnd && selectionEnd <= end // selectionEnd is between start and end\n ;\n }\n\n if (blockKey !== anchorKey && blockKey !== focusKey) {\n return false;\n }\n\n var offsetToCheck = blockKey === anchorKey ? this.getAnchorOffset() : this.getFocusOffset();\n return start <= offsetToCheck && end >= offsetToCheck;\n };\n\n _proto.isCollapsed = function isCollapsed() {\n return this.getAnchorKey() === this.getFocusKey() && this.getAnchorOffset() === this.getFocusOffset();\n };\n\n _proto.getStartKey = function getStartKey() {\n return this.getIsBackward() ? this.getFocusKey() : this.getAnchorKey();\n };\n\n _proto.getStartOffset = function getStartOffset() {\n return this.getIsBackward() ? this.getFocusOffset() : this.getAnchorOffset();\n };\n\n _proto.getEndKey = function getEndKey() {\n return this.getIsBackward() ? this.getAnchorKey() : this.getFocusKey();\n };\n\n _proto.getEndOffset = function getEndOffset() {\n return this.getIsBackward() ? this.getAnchorOffset() : this.getFocusOffset();\n };\n\n SelectionState.createEmpty = function createEmpty(key) {\n return new SelectionState({\n anchorKey: key,\n anchorOffset: 0,\n focusKey: key,\n focusOffset: 0,\n isBackward: false,\n hasFocus: false\n });\n };\n\n return SelectionState;\n}(SelectionStateRecord);\n\nmodule.exports = SelectionState;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nfunction adjustBlockDepthForContentState(contentState, selectionState, adjustment, maxDepth) {\n var startKey = selectionState.getStartKey();\n var endKey = selectionState.getEndKey();\n var blockMap = contentState.getBlockMap();\n var blocks = blockMap.toSeq().skipUntil(function (_, k) {\n return k === startKey;\n }).takeUntil(function (_, k) {\n return k === endKey;\n }).concat([[endKey, blockMap.get(endKey)]]).map(function (block) {\n var depth = block.getDepth() + adjustment;\n depth = Math.max(0, Math.min(depth, maxDepth));\n return block.set('depth', depth);\n });\n blockMap = blockMap.merge(blocks);\n return contentState.merge({\n blockMap: blockMap,\n selectionBefore: selectionState,\n selectionAfter: selectionState\n });\n}\n\nmodule.exports = adjustBlockDepthForContentState;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar CharacterMetadata = require(\"./CharacterMetadata\");\n\nfunction applyEntityToContentBlock(contentBlock, startArg, end, entityKey) {\n var start = startArg;\n var characterList = contentBlock.getCharacterList();\n\n while (start < end) {\n characterList = characterList.set(start, CharacterMetadata.applyEntity(characterList.get(start), entityKey));\n start++;\n }\n\n return contentBlock.set('characterList', characterList);\n}\n\nmodule.exports = applyEntityToContentBlock;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar applyEntityToContentBlock = require(\"./applyEntityToContentBlock\");\n\nvar Immutable = require(\"immutable\");\n\nfunction applyEntityToContentState(contentState, selectionState, entityKey) {\n var blockMap = contentState.getBlockMap();\n var startKey = selectionState.getStartKey();\n var startOffset = selectionState.getStartOffset();\n var endKey = selectionState.getEndKey();\n var endOffset = selectionState.getEndOffset();\n var newBlocks = blockMap.skipUntil(function (_, k) {\n return k === startKey;\n }).takeUntil(function (_, k) {\n return k === endKey;\n }).toOrderedMap().merge(Immutable.OrderedMap([[endKey, blockMap.get(endKey)]])).map(function (block, blockKey) {\n var sliceStart = blockKey === startKey ? startOffset : 0;\n var sliceEnd = blockKey === endKey ? endOffset : block.getLength();\n return applyEntityToContentBlock(block, sliceStart, sliceEnd, entityKey);\n });\n return contentState.merge({\n blockMap: blockMap.merge(newBlocks),\n selectionBefore: selectionState,\n selectionAfter: selectionState\n });\n}\n\nmodule.exports = applyEntityToContentState;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nfunction _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\nvar ContentBlock = require(\"./ContentBlock\");\n\nvar ContentBlockNode = require(\"./ContentBlockNode\");\n\nvar DraftStringKey = require(\"./DraftStringKey\");\n\nvar encodeEntityRanges = require(\"./encodeEntityRanges\");\n\nvar encodeInlineStyleRanges = require(\"./encodeInlineStyleRanges\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar createRawBlock = function createRawBlock(block, entityStorageMap) {\n return {\n key: block.getKey(),\n text: block.getText(),\n type: block.getType(),\n depth: block.getDepth(),\n inlineStyleRanges: encodeInlineStyleRanges(block),\n entityRanges: encodeEntityRanges(block, entityStorageMap),\n data: block.getData().toObject()\n };\n};\n\nvar insertRawBlock = function insertRawBlock(block, entityMap, rawBlocks, blockCacheRef) {\n if (block instanceof ContentBlock) {\n rawBlocks.push(createRawBlock(block, entityMap));\n return;\n }\n\n !(block instanceof ContentBlockNode) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'block is not a BlockNode') : invariant(false) : void 0;\n var parentKey = block.getParentKey();\n\n var rawBlock = blockCacheRef[block.getKey()] = _objectSpread({}, createRawBlock(block, entityMap), {\n children: []\n });\n\n if (parentKey) {\n blockCacheRef[parentKey].children.push(rawBlock);\n return;\n }\n\n rawBlocks.push(rawBlock);\n};\n\nvar encodeRawBlocks = function encodeRawBlocks(contentState, rawState) {\n var entityMap = rawState.entityMap;\n var rawBlocks = [];\n var blockCacheRef = {};\n var entityCacheRef = {};\n var entityStorageKey = 0;\n contentState.getBlockMap().forEach(function (block) {\n block.findEntityRanges(function (character) {\n return character.getEntity() !== null;\n }, function (start) {\n var entityKey = block.getEntityAt(start); // Stringify to maintain order of otherwise numeric keys.\n\n var stringifiedEntityKey = DraftStringKey.stringify(entityKey); // This makes this function resilient to two entities\n // erroneously having the same key\n\n if (entityCacheRef[stringifiedEntityKey]) {\n return;\n }\n\n entityCacheRef[stringifiedEntityKey] = entityKey; // we need the `any` casting here since this is a temporary state\n // where we will later on flip the entity map and populate it with\n // real entity, at this stage we just need to map back the entity\n // key used by the BlockNode\n\n entityMap[stringifiedEntityKey] = \"\".concat(entityStorageKey);\n entityStorageKey++;\n });\n insertRawBlock(block, entityMap, rawBlocks, blockCacheRef);\n });\n return {\n blocks: rawBlocks,\n entityMap: entityMap\n };\n}; // Flip storage map so that our storage keys map to global\n// DraftEntity keys.\n\n\nvar encodeRawEntityMap = function encodeRawEntityMap(contentState, rawState) {\n var blocks = rawState.blocks,\n entityMap = rawState.entityMap;\n var rawEntityMap = {};\n Object.keys(entityMap).forEach(function (key, index) {\n var entity = contentState.getEntity(DraftStringKey.unstringify(key));\n rawEntityMap[index] = {\n type: entity.getType(),\n mutability: entity.getMutability(),\n data: entity.getData()\n };\n });\n return {\n blocks: blocks,\n entityMap: rawEntityMap\n };\n};\n\nvar convertFromDraftStateToRaw = function convertFromDraftStateToRaw(contentState) {\n var rawDraftContentState = {\n entityMap: {},\n blocks: []\n }; // add blocks\n\n rawDraftContentState = encodeRawBlocks(contentState, rawDraftContentState); // add entities\n\n rawDraftContentState = encodeRawEntityMap(contentState, rawDraftContentState);\n return rawDraftContentState;\n};\n\nmodule.exports = convertFromDraftStateToRaw;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar _knownListItemDepthCl;\n\nfunction _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\nvar CharacterMetadata = require(\"./CharacterMetadata\");\n\nvar ContentBlock = require(\"./ContentBlock\");\n\nvar ContentBlockNode = require(\"./ContentBlockNode\");\n\nvar DefaultDraftBlockRenderMap = require(\"./DefaultDraftBlockRenderMap\");\n\nvar DraftEntity = require(\"./DraftEntity\");\n\nvar URI = require(\"fbjs/lib/URI\");\n\nvar cx = require(\"fbjs/lib/cx\");\n\nvar generateRandomKey = require(\"./generateRandomKey\");\n\nvar getSafeBodyFromHTML = require(\"./getSafeBodyFromHTML\");\n\nvar gkx = require(\"./gkx\");\n\nvar _require = require(\"immutable\"),\n List = _require.List,\n Map = _require.Map,\n OrderedSet = _require.OrderedSet;\n\nvar isHTMLAnchorElement = require(\"./isHTMLAnchorElement\");\n\nvar isHTMLBRElement = require(\"./isHTMLBRElement\");\n\nvar isHTMLElement = require(\"./isHTMLElement\");\n\nvar isHTMLImageElement = require(\"./isHTMLImageElement\");\n\nvar experimentalTreeDataSupport = gkx('draft_tree_data_support');\nvar NBSP = ' ';\nvar SPACE = ' '; // used for replacing characters in HTML\n\nvar REGEX_CR = new RegExp('\\r', 'g');\nvar REGEX_LF = new RegExp('\\n', 'g');\nvar REGEX_LEADING_LF = new RegExp('^\\n', 'g');\nvar REGEX_NBSP = new RegExp(NBSP, 'g');\nvar REGEX_CARRIAGE = new RegExp(' ?', 'g');\nvar REGEX_ZWS = new RegExp('​?', 'g'); // https://developer.mozilla.org/en-US/docs/Web/CSS/font-weight\n\nvar boldValues = ['bold', 'bolder', '500', '600', '700', '800', '900'];\nvar notBoldValues = ['light', 'lighter', 'normal', '100', '200', '300', '400'];\nvar anchorAttr = ['className', 'href', 'rel', 'target', 'title'];\nvar imgAttr = ['alt', 'className', 'height', 'src', 'width'];\nvar knownListItemDepthClasses = (_knownListItemDepthCl = {}, _defineProperty(_knownListItemDepthCl, cx('public/DraftStyleDefault/depth0'), 0), _defineProperty(_knownListItemDepthCl, cx('public/DraftStyleDefault/depth1'), 1), _defineProperty(_knownListItemDepthCl, cx('public/DraftStyleDefault/depth2'), 2), _defineProperty(_knownListItemDepthCl, cx('public/DraftStyleDefault/depth3'), 3), _defineProperty(_knownListItemDepthCl, cx('public/DraftStyleDefault/depth4'), 4), _knownListItemDepthCl);\nvar HTMLTagToRawInlineStyleMap = Map({\n b: 'BOLD',\n code: 'CODE',\n del: 'STRIKETHROUGH',\n em: 'ITALIC',\n i: 'ITALIC',\n s: 'STRIKETHROUGH',\n strike: 'STRIKETHROUGH',\n strong: 'BOLD',\n u: 'UNDERLINE',\n mark: 'HIGHLIGHT'\n});\n\n/**\n * Build a mapping from HTML tags to draftjs block types\n * out of a BlockRenderMap.\n *\n * The BlockTypeMap for the default BlockRenderMap looks like this:\n * Map({\n * h1: 'header-one',\n * h2: 'header-two',\n * h3: 'header-three',\n * h4: 'header-four',\n * h5: 'header-five',\n * h6: 'header-six',\n * blockquote: 'blockquote',\n * figure: 'atomic',\n * pre: ['code-block'],\n * div: 'unstyled',\n * p: 'unstyled',\n * li: ['ordered-list-item', 'unordered-list-item'],\n * })\n */\nvar buildBlockTypeMap = function buildBlockTypeMap(blockRenderMap) {\n var blockTypeMap = {};\n blockRenderMap.mapKeys(function (blockType, desc) {\n var elements = [desc.element];\n\n if (desc.aliasedElements !== undefined) {\n elements.push.apply(elements, desc.aliasedElements);\n }\n\n elements.forEach(function (element) {\n if (blockTypeMap[element] === undefined) {\n blockTypeMap[element] = blockType;\n } else if (typeof blockTypeMap[element] === 'string') {\n blockTypeMap[element] = [blockTypeMap[element], blockType];\n } else {\n blockTypeMap[element].push(blockType);\n }\n });\n });\n return Map(blockTypeMap);\n};\n\nvar detectInlineStyle = function detectInlineStyle(node) {\n if (isHTMLElement(node)) {\n var element = node; // Currently only used to detect preformatted inline code\n\n if (element.style.fontFamily.includes('monospace')) {\n return 'CODE';\n }\n }\n\n return null;\n};\n/**\n * If we're pasting from one DraftEditor to another we can check to see if\n * existing list item depth classes are being used and preserve this style\n */\n\n\nvar getListItemDepth = function getListItemDepth(node) {\n var depth = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;\n Object.keys(knownListItemDepthClasses).some(function (depthClass) {\n if (node.classList.contains(depthClass)) {\n depth = knownListItemDepthClasses[depthClass];\n }\n });\n return depth;\n};\n/**\n * Return true if the provided HTML Element can be used to build a\n * Draftjs-compatible link.\n */\n\n\nvar isValidAnchor = function isValidAnchor(node) {\n if (!isHTMLAnchorElement(node)) {\n return false;\n }\n\n var anchorNode = node;\n\n if (!anchorNode.href || anchorNode.protocol !== 'http:' && anchorNode.protocol !== 'https:' && anchorNode.protocol !== 'mailto:' && anchorNode.protocol !== 'tel:') {\n return false;\n }\n\n try {\n // Just checking whether we can actually create a URI\n var _ = new URI(anchorNode.href);\n\n return true; // We need our catch statements to have arguments, else\n // UglifyJS (which we use for our OSS builds) will crash.\n // eslint-disable-next-line fb-www/no-unused-catch-bindings\n } catch (_) {\n return false;\n }\n};\n/**\n * Return true if the provided HTML Element can be used to build a\n * Draftjs-compatible image.\n */\n\n\nvar isValidImage = function isValidImage(node) {\n if (!isHTMLImageElement(node)) {\n return false;\n }\n\n var imageNode = node;\n return !!(imageNode.attributes.getNamedItem('src') && imageNode.attributes.getNamedItem('src').value);\n};\n/**\n * Try to guess the inline style of an HTML element based on its css\n * styles (font-weight, font-style and text-decoration).\n */\n\n\nvar styleFromNodeAttributes = function styleFromNodeAttributes(node, style) {\n if (!isHTMLElement(node)) {\n return style;\n }\n\n var htmlElement = node;\n var fontWeight = htmlElement.style.fontWeight;\n var fontStyle = htmlElement.style.fontStyle;\n var textDecoration = htmlElement.style.textDecoration;\n return style.withMutations(function (style) {\n if (boldValues.indexOf(fontWeight) >= 0) {\n style.add('BOLD');\n } else if (notBoldValues.indexOf(fontWeight) >= 0) {\n style.remove('BOLD');\n }\n\n if (fontStyle === 'italic') {\n style.add('ITALIC');\n } else if (fontStyle === 'normal') {\n style.remove('ITALIC');\n }\n\n if (textDecoration === 'underline') {\n style.add('UNDERLINE');\n }\n\n if (textDecoration === 'line-through') {\n style.add('STRIKETHROUGH');\n }\n\n if (textDecoration === 'none') {\n style.remove('UNDERLINE');\n style.remove('STRIKETHROUGH');\n }\n });\n};\n/**\n * Determine if a nodeName is a list type, 'ul' or 'ol'\n */\n\n\nvar isListNode = function isListNode(nodeName) {\n return nodeName === 'ul' || nodeName === 'ol';\n};\n/**\n * ContentBlockConfig is a mutable data structure that holds all\n * the information required to build a ContentBlock and an array of\n * all the child nodes (childConfigs).\n * It is being used a temporary data structure by the\n * ContentBlocksBuilder class.\n */\n\n\n/**\n * ContentBlocksBuilder builds a list of ContentBlocks and an Entity Map\n * out of one (or several) HTMLElement(s).\n *\n * The algorithm has two passes: first it builds a tree of ContentBlockConfigs\n * by walking through the HTML nodes and their children, then it walks the\n * ContentBlockConfigs tree to compute parents/siblings and create\n * the actual ContentBlocks.\n *\n * Typical usage is:\n * new ContentBlocksBuilder()\n * .addDOMNode(someHTMLNode)\n * .addDOMNode(someOtherHTMLNode)\n * .getContentBlocks();\n *\n */\nvar ContentBlocksBuilder = /*#__PURE__*/function () {\n // Most of the method in the class depend on the state of the content builder\n // (i.e. currentBlockType, currentDepth, currentEntity etc.). Though it may\n // be confusing at first, it made the code simpler than the alternative which\n // is to pass those values around in every call.\n // The following attributes are used to accumulate text and styles\n // as we are walking the HTML node tree.\n // Describes the future ContentState as a tree of content blocks\n // The content blocks generated from the blockConfigs\n // Entity map use to store links and images found in the HTML nodes\n // Map HTML tags to draftjs block types and disambiguation function\n function ContentBlocksBuilder(blockTypeMap, disambiguate) {\n _defineProperty(this, \"characterList\", List());\n\n _defineProperty(this, \"currentBlockType\", 'unstyled');\n\n _defineProperty(this, \"currentDepth\", 0);\n\n _defineProperty(this, \"currentEntity\", null);\n\n _defineProperty(this, \"currentText\", '');\n\n _defineProperty(this, \"wrapper\", null);\n\n _defineProperty(this, \"blockConfigs\", []);\n\n _defineProperty(this, \"contentBlocks\", []);\n\n _defineProperty(this, \"entityMap\", DraftEntity);\n\n _defineProperty(this, \"blockTypeMap\", void 0);\n\n _defineProperty(this, \"disambiguate\", void 0);\n\n this.clear();\n this.blockTypeMap = blockTypeMap;\n this.disambiguate = disambiguate;\n }\n /**\n * Clear the internal state of the ContentBlocksBuilder\n */\n\n\n var _proto = ContentBlocksBuilder.prototype;\n\n _proto.clear = function clear() {\n this.characterList = List();\n this.blockConfigs = [];\n this.currentBlockType = 'unstyled';\n this.currentDepth = 0;\n this.currentEntity = null;\n this.currentText = '';\n this.entityMap = DraftEntity;\n this.wrapper = null;\n this.contentBlocks = [];\n }\n /**\n * Add an HTMLElement to the ContentBlocksBuilder\n */\n ;\n\n _proto.addDOMNode = function addDOMNode(node) {\n var _this$blockConfigs;\n\n this.contentBlocks = [];\n this.currentDepth = 0; // Converts the HTML node to block config\n\n (_this$blockConfigs = this.blockConfigs).push.apply(_this$blockConfigs, this._toBlockConfigs([node], OrderedSet())); // There might be some left over text in the builder's\n // internal state, if so make a ContentBlock out of it.\n\n\n this._trimCurrentText();\n\n if (this.currentText !== '') {\n this.blockConfigs.push(this._makeBlockConfig());\n } // for chaining\n\n\n return this;\n }\n /**\n * Return the ContentBlocks and the EntityMap that corresponds\n * to the previously added HTML nodes.\n */\n ;\n\n _proto.getContentBlocks = function getContentBlocks() {\n if (this.contentBlocks.length === 0) {\n if (experimentalTreeDataSupport) {\n this._toContentBlocks(this.blockConfigs);\n } else {\n this._toFlatContentBlocks(this.blockConfigs);\n }\n }\n\n return {\n contentBlocks: this.contentBlocks,\n entityMap: this.entityMap\n };\n } // ***********************************WARNING******************************\n // The methods below this line are private - don't call them directly.\n\n /**\n * Generate a new ContentBlockConfig out of the current internal state\n * of the builder, then clears the internal state.\n */\n ;\n\n _proto._makeBlockConfig = function _makeBlockConfig() {\n var config = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n var key = config.key || generateRandomKey();\n\n var block = _objectSpread({\n key: key,\n type: this.currentBlockType,\n text: this.currentText,\n characterList: this.characterList,\n depth: this.currentDepth,\n parent: null,\n children: List(),\n prevSibling: null,\n nextSibling: null,\n childConfigs: []\n }, config);\n\n this.characterList = List();\n this.currentBlockType = 'unstyled';\n this.currentText = '';\n return block;\n }\n /**\n * Converts an array of HTML elements to a multi-root tree of content\n * block configs. Some text content may be left in the builders internal\n * state to enable chaining sucessive calls.\n */\n ;\n\n _proto._toBlockConfigs = function _toBlockConfigs(nodes, style) {\n var blockConfigs = [];\n\n for (var i = 0; i < nodes.length; i++) {\n var node = nodes[i];\n var nodeName = node.nodeName.toLowerCase();\n\n if (nodeName === 'body' || isListNode(nodeName)) {\n // body, ol and ul are 'block' type nodes so create a block config\n // with the text accumulated so far (if any)\n this._trimCurrentText();\n\n if (this.currentText !== '') {\n blockConfigs.push(this._makeBlockConfig());\n } // body, ol and ul nodes are ignored, but their children are inlined in\n // the parent block config.\n\n\n var wasCurrentDepth = this.currentDepth;\n var wasWrapper = this.wrapper;\n\n if (isListNode(nodeName)) {\n this.wrapper = nodeName;\n\n if (isListNode(wasWrapper)) {\n this.currentDepth++;\n }\n }\n\n blockConfigs.push.apply(blockConfigs, this._toBlockConfigs(Array.from(node.childNodes), style));\n this.currentDepth = wasCurrentDepth;\n this.wrapper = wasWrapper;\n continue;\n }\n\n var blockType = this.blockTypeMap.get(nodeName);\n\n if (blockType !== undefined) {\n // 'block' type node means we need to create a block config\n // with the text accumulated so far (if any)\n this._trimCurrentText();\n\n if (this.currentText !== '') {\n blockConfigs.push(this._makeBlockConfig());\n }\n\n var _wasCurrentDepth = this.currentDepth;\n var _wasWrapper = this.wrapper;\n this.wrapper = nodeName === 'pre' ? 'pre' : this.wrapper;\n\n if (typeof blockType !== 'string') {\n blockType = this.disambiguate(nodeName, this.wrapper) || blockType[0] || 'unstyled';\n }\n\n if (!experimentalTreeDataSupport && isHTMLElement(node) && (blockType === 'unordered-list-item' || blockType === 'ordered-list-item')) {\n var htmlElement = node;\n this.currentDepth = getListItemDepth(htmlElement, this.currentDepth);\n }\n\n var key = generateRandomKey();\n\n var childConfigs = this._toBlockConfigs(Array.from(node.childNodes), style);\n\n this._trimCurrentText();\n\n blockConfigs.push(this._makeBlockConfig({\n key: key,\n childConfigs: childConfigs,\n type: blockType\n }));\n this.currentDepth = _wasCurrentDepth;\n this.wrapper = _wasWrapper;\n continue;\n }\n\n if (nodeName === '#text') {\n this._addTextNode(node, style);\n\n continue;\n }\n\n if (nodeName === 'br') {\n this._addBreakNode(node, style);\n\n continue;\n }\n\n if (isValidImage(node)) {\n this._addImgNode(node, style);\n\n continue;\n }\n\n if (isValidAnchor(node)) {\n this._addAnchorNode(node, blockConfigs, style);\n\n continue;\n }\n\n var newStyle = style;\n\n if (HTMLTagToRawInlineStyleMap.has(nodeName)) {\n newStyle = newStyle.add(HTMLTagToRawInlineStyleMap.get(nodeName));\n }\n\n newStyle = styleFromNodeAttributes(node, newStyle);\n var inlineStyle = detectInlineStyle(node);\n\n if (inlineStyle != null) {\n newStyle = newStyle.add(inlineStyle);\n }\n\n blockConfigs.push.apply(blockConfigs, this._toBlockConfigs(Array.from(node.childNodes), newStyle));\n }\n\n return blockConfigs;\n }\n /**\n * Append a string of text to the internal buffer.\n */\n ;\n\n _proto._appendText = function _appendText(text, style) {\n var _this$characterList;\n\n this.currentText += text;\n var characterMetadata = CharacterMetadata.create({\n style: style,\n entity: this.currentEntity\n });\n this.characterList = (_this$characterList = this.characterList).push.apply(_this$characterList, Array(text.length).fill(characterMetadata));\n }\n /**\n * Trim the text in the internal buffer.\n */\n ;\n\n _proto._trimCurrentText = function _trimCurrentText() {\n var l = this.currentText.length;\n var begin = l - this.currentText.trimLeft().length;\n var end = this.currentText.trimRight().length; // We should not trim whitespaces for which an entity is defined.\n\n var entity = this.characterList.findEntry(function (characterMetadata) {\n return characterMetadata.getEntity() !== null;\n });\n begin = entity !== undefined ? Math.min(begin, entity[0]) : begin;\n entity = this.characterList.reverse().findEntry(function (characterMetadata) {\n return characterMetadata.getEntity() !== null;\n });\n end = entity !== undefined ? Math.max(end, l - entity[0]) : end;\n\n if (begin > end) {\n this.currentText = '';\n this.characterList = List();\n } else {\n this.currentText = this.currentText.slice(begin, end);\n this.characterList = this.characterList.slice(begin, end);\n }\n }\n /**\n * Add the content of an HTML text node to the internal state\n */\n ;\n\n _proto._addTextNode = function _addTextNode(node, style) {\n var text = node.textContent;\n var trimmedText = text.trim(); // If we are not in a pre block and the trimmed content is empty,\n // normalize to a single space.\n\n if (trimmedText === '' && this.wrapper !== 'pre') {\n text = ' ';\n }\n\n if (this.wrapper !== 'pre') {\n // Trim leading line feed, which is invisible in HTML\n text = text.replace(REGEX_LEADING_LF, ''); // Can't use empty string because MSWord\n\n text = text.replace(REGEX_LF, SPACE);\n }\n\n this._appendText(text, style);\n };\n\n _proto._addBreakNode = function _addBreakNode(node, style) {\n if (!isHTMLBRElement(node)) {\n return;\n }\n\n this._appendText('\\n', style);\n }\n /**\n * Add the content of an HTML img node to the internal state\n */\n ;\n\n _proto._addImgNode = function _addImgNode(node, style) {\n if (!isHTMLImageElement(node)) {\n return;\n }\n\n var image = node;\n var entityConfig = {};\n imgAttr.forEach(function (attr) {\n var imageAttribute = image.getAttribute(attr);\n\n if (imageAttribute) {\n entityConfig[attr] = imageAttribute;\n }\n }); // TODO: T15530363 update this when we remove DraftEntity entirely\n\n this.currentEntity = this.entityMap.__create('IMAGE', 'IMMUTABLE', entityConfig); // The child text node cannot just have a space or return as content (since\n // we strip those out), unless the image is for presentation only.\n // See https://github.com/facebook/draft-js/issues/231 for some context.\n\n if (gkx('draftjs_fix_paste_for_img')) {\n if (image.getAttribute('role') !== 'presentation') {\n this._appendText(\"\\uD83D\\uDCF7\", style);\n }\n } else {\n this._appendText(\"\\uD83D\\uDCF7\", style);\n }\n\n this.currentEntity = null;\n }\n /**\n * Add the content of an HTML 'a' node to the internal state. Child nodes\n * (if any) are converted to Block Configs and appended to the provided\n * blockConfig array.\n */\n ;\n\n _proto._addAnchorNode = function _addAnchorNode(node, blockConfigs, style) {\n // The check has already been made by isValidAnchor but\n // we have to do it again to keep flow happy.\n if (!isHTMLAnchorElement(node)) {\n return;\n }\n\n var anchor = node;\n var entityConfig = {};\n anchorAttr.forEach(function (attr) {\n var anchorAttribute = anchor.getAttribute(attr);\n\n if (anchorAttribute) {\n entityConfig[attr] = anchorAttribute;\n }\n });\n entityConfig.url = new URI(anchor.href).toString(); // TODO: T15530363 update this when we remove DraftEntity completely\n\n this.currentEntity = this.entityMap.__create('LINK', 'MUTABLE', entityConfig || {});\n blockConfigs.push.apply(blockConfigs, this._toBlockConfigs(Array.from(node.childNodes), style));\n this.currentEntity = null;\n }\n /**\n * Walk the BlockConfig tree, compute parent/children/siblings,\n * and generate the corresponding ContentBlockNode\n */\n ;\n\n _proto._toContentBlocks = function _toContentBlocks(blockConfigs) {\n var parent = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;\n var l = blockConfigs.length - 1;\n\n for (var i = 0; i <= l; i++) {\n var config = blockConfigs[i];\n config.parent = parent;\n config.prevSibling = i > 0 ? blockConfigs[i - 1].key : null;\n config.nextSibling = i < l ? blockConfigs[i + 1].key : null;\n config.children = List(config.childConfigs.map(function (child) {\n return child.key;\n }));\n this.contentBlocks.push(new ContentBlockNode(_objectSpread({}, config)));\n\n this._toContentBlocks(config.childConfigs, config.key);\n }\n }\n /**\n * Remove 'useless' container nodes from the block config hierarchy, by\n * replacing them with their children.\n */\n ;\n\n _proto._hoistContainersInBlockConfigs = function _hoistContainersInBlockConfigs(blockConfigs) {\n var _this = this;\n\n var hoisted = List(blockConfigs).flatMap(function (blockConfig) {\n // Don't mess with useful blocks\n if (blockConfig.type !== 'unstyled' || blockConfig.text !== '') {\n return [blockConfig];\n }\n\n return _this._hoistContainersInBlockConfigs(blockConfig.childConfigs);\n });\n return hoisted;\n } // ***********************************************************************\n // The two methods below are used for backward compatibility when\n // experimentalTreeDataSupport is disabled.\n\n /**\n * Same as _toContentBlocks but replaces nested blocks by their\n * text content.\n */\n ;\n\n _proto._toFlatContentBlocks = function _toFlatContentBlocks(blockConfigs) {\n var _this2 = this;\n\n var cleanConfigs = this._hoistContainersInBlockConfigs(blockConfigs);\n\n cleanConfigs.forEach(function (config) {\n var _this2$_extractTextFr = _this2._extractTextFromBlockConfigs(config.childConfigs),\n text = _this2$_extractTextFr.text,\n characterList = _this2$_extractTextFr.characterList;\n\n _this2.contentBlocks.push(new ContentBlock(_objectSpread({}, config, {\n text: config.text + text,\n characterList: config.characterList.concat(characterList)\n })));\n });\n }\n /**\n * Extract the text and the associated inline styles form an\n * array of content block configs.\n */\n ;\n\n _proto._extractTextFromBlockConfigs = function _extractTextFromBlockConfigs(blockConfigs) {\n var l = blockConfigs.length - 1;\n var text = '';\n var characterList = List();\n\n for (var i = 0; i <= l; i++) {\n var config = blockConfigs[i];\n text += config.text;\n characterList = characterList.concat(config.characterList);\n\n if (text !== '' && config.type !== 'unstyled') {\n text += '\\n';\n characterList = characterList.push(characterList.last());\n }\n\n var children = this._extractTextFromBlockConfigs(config.childConfigs);\n\n text += children.text;\n characterList = characterList.concat(children.characterList);\n }\n\n return {\n text: text,\n characterList: characterList\n };\n };\n\n return ContentBlocksBuilder;\n}();\n/**\n * Converts an HTML string to an array of ContentBlocks and an EntityMap\n * suitable to initialize the internal state of a Draftjs component.\n */\n\n\nvar convertFromHTMLToContentBlocks = function convertFromHTMLToContentBlocks(html) {\n var DOMBuilder = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : getSafeBodyFromHTML;\n var blockRenderMap = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : DefaultDraftBlockRenderMap;\n // Be ABSOLUTELY SURE that the dom builder you pass here won't execute\n // arbitrary code in whatever environment you're running this in. For an\n // example of how we try to do this in-browser, see getSafeBodyFromHTML.\n // Remove funky characters from the HTML string\n html = html.trim().replace(REGEX_CR, '').replace(REGEX_NBSP, SPACE).replace(REGEX_CARRIAGE, '').replace(REGEX_ZWS, ''); // Build a DOM tree out of the HTML string\n\n var safeBody = DOMBuilder(html);\n\n if (!safeBody) {\n return null;\n } // Build a BlockTypeMap out of the BlockRenderMap\n\n\n var blockTypeMap = buildBlockTypeMap(blockRenderMap); // Select the proper block type for the cases where the blockRenderMap\n // uses multiple block types for the same html tag.\n\n var disambiguate = function disambiguate(tag, wrapper) {\n if (tag === 'li') {\n return wrapper === 'ol' ? 'ordered-list-item' : 'unordered-list-item';\n }\n\n return null;\n };\n\n return new ContentBlocksBuilder(blockTypeMap, disambiguate).addDOMNode(safeBody).getContentBlocks();\n};\n\nmodule.exports = convertFromHTMLToContentBlocks;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nfunction _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\nvar ContentBlock = require(\"./ContentBlock\");\n\nvar ContentBlockNode = require(\"./ContentBlockNode\");\n\nvar ContentState = require(\"./ContentState\");\n\nvar DraftEntity = require(\"./DraftEntity\");\n\nvar DraftTreeAdapter = require(\"./DraftTreeAdapter\");\n\nvar DraftTreeInvariants = require(\"./DraftTreeInvariants\");\n\nvar SelectionState = require(\"./SelectionState\");\n\nvar createCharacterList = require(\"./createCharacterList\");\n\nvar decodeEntityRanges = require(\"./decodeEntityRanges\");\n\nvar decodeInlineStyleRanges = require(\"./decodeInlineStyleRanges\");\n\nvar generateRandomKey = require(\"./generateRandomKey\");\n\nvar gkx = require(\"./gkx\");\n\nvar Immutable = require(\"immutable\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar experimentalTreeDataSupport = gkx('draft_tree_data_support');\nvar List = Immutable.List,\n Map = Immutable.Map,\n OrderedMap = Immutable.OrderedMap;\n\nvar decodeBlockNodeConfig = function decodeBlockNodeConfig(block, entityMap) {\n var key = block.key,\n type = block.type,\n data = block.data,\n text = block.text,\n depth = block.depth;\n var blockNodeConfig = {\n text: text,\n depth: depth || 0,\n type: type || 'unstyled',\n key: key || generateRandomKey(),\n data: Map(data),\n characterList: decodeCharacterList(block, entityMap)\n };\n return blockNodeConfig;\n};\n\nvar decodeCharacterList = function decodeCharacterList(block, entityMap) {\n var text = block.text,\n rawEntityRanges = block.entityRanges,\n rawInlineStyleRanges = block.inlineStyleRanges;\n var entityRanges = rawEntityRanges || [];\n var inlineStyleRanges = rawInlineStyleRanges || []; // Translate entity range keys to the DraftEntity map.\n\n return createCharacterList(decodeInlineStyleRanges(text, inlineStyleRanges), decodeEntityRanges(text, entityRanges.filter(function (range) {\n return entityMap.hasOwnProperty(range.key);\n }).map(function (range) {\n return _objectSpread({}, range, {\n key: entityMap[range.key]\n });\n })));\n};\n\nvar addKeyIfMissing = function addKeyIfMissing(block) {\n return _objectSpread({}, block, {\n key: block.key || generateRandomKey()\n });\n};\n/**\n * Node stack is responsible to ensure we traverse the tree only once\n * in depth order, while also providing parent refs to inner nodes to\n * construct their links.\n */\n\n\nvar updateNodeStack = function updateNodeStack(stack, nodes, parentRef) {\n var nodesWithParentRef = nodes.map(function (block) {\n return _objectSpread({}, block, {\n parentRef: parentRef\n });\n }); // since we pop nodes from the stack we need to insert them in reverse\n\n return stack.concat(nodesWithParentRef.reverse());\n};\n/**\n * This will build a tree draft content state by creating the node\n * reference links into a single tree walk. Each node has a link\n * reference to \"parent\", \"children\", \"nextSibling\" and \"prevSibling\"\n * blockMap will be created using depth ordering.\n */\n\n\nvar decodeContentBlockNodes = function decodeContentBlockNodes(blocks, entityMap) {\n return blocks // ensure children have valid keys to enable sibling links\n .map(addKeyIfMissing).reduce(function (blockMap, block, index) {\n !Array.isArray(block.children) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'invalid RawDraftContentBlock can not be converted to ContentBlockNode') : invariant(false) : void 0; // ensure children have valid keys to enable sibling links\n\n var children = block.children.map(addKeyIfMissing); // root level nodes\n\n var contentBlockNode = new ContentBlockNode(_objectSpread({}, decodeBlockNodeConfig(block, entityMap), {\n prevSibling: index === 0 ? null : blocks[index - 1].key,\n nextSibling: index === blocks.length - 1 ? null : blocks[index + 1].key,\n children: List(children.map(function (child) {\n return child.key;\n }))\n })); // push root node to blockMap\n\n blockMap = blockMap.set(contentBlockNode.getKey(), contentBlockNode); // this stack is used to ensure we visit all nodes respecting depth ordering\n\n var stack = updateNodeStack([], children, contentBlockNode); // start computing children nodes\n\n while (stack.length > 0) {\n // we pop from the stack and start processing this node\n var node = stack.pop(); // parentRef already points to a converted ContentBlockNode\n\n var parentRef = node.parentRef;\n var siblings = parentRef.getChildKeys();\n\n var _index = siblings.indexOf(node.key);\n\n var isValidBlock = Array.isArray(node.children);\n\n if (!isValidBlock) {\n !isValidBlock ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'invalid RawDraftContentBlock can not be converted to ContentBlockNode') : invariant(false) : void 0;\n break;\n } // ensure children have valid keys to enable sibling links\n\n\n var _children = node.children.map(addKeyIfMissing);\n\n var _contentBlockNode = new ContentBlockNode(_objectSpread({}, decodeBlockNodeConfig(node, entityMap), {\n parent: parentRef.getKey(),\n children: List(_children.map(function (child) {\n return child.key;\n })),\n prevSibling: _index === 0 ? null : siblings.get(_index - 1),\n nextSibling: _index === siblings.size - 1 ? null : siblings.get(_index + 1)\n })); // push node to blockMap\n\n\n blockMap = blockMap.set(_contentBlockNode.getKey(), _contentBlockNode); // this stack is used to ensure we visit all nodes respecting depth ordering\n\n stack = updateNodeStack(stack, _children, _contentBlockNode);\n }\n\n return blockMap;\n }, OrderedMap());\n};\n\nvar decodeContentBlocks = function decodeContentBlocks(blocks, entityMap) {\n return OrderedMap(blocks.map(function (block) {\n var contentBlock = new ContentBlock(decodeBlockNodeConfig(block, entityMap));\n return [contentBlock.getKey(), contentBlock];\n }));\n};\n\nvar decodeRawBlocks = function decodeRawBlocks(rawState, entityMap) {\n var isTreeRawBlock = rawState.blocks.find(function (block) {\n return Array.isArray(block.children) && block.children.length > 0;\n });\n var rawBlocks = experimentalTreeDataSupport && !isTreeRawBlock ? DraftTreeAdapter.fromRawStateToRawTreeState(rawState).blocks : rawState.blocks;\n\n if (!experimentalTreeDataSupport) {\n return decodeContentBlocks(isTreeRawBlock ? DraftTreeAdapter.fromRawTreeStateToRawState(rawState).blocks : rawBlocks, entityMap);\n }\n\n var blockMap = decodeContentBlockNodes(rawBlocks, entityMap); // in dev mode, check that the tree invariants are met\n\n if (process.env.NODE_ENV !== \"production\") {\n !DraftTreeInvariants.isValidTree(blockMap) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Should be a valid tree') : invariant(false) : void 0;\n }\n\n return blockMap;\n};\n\nvar decodeRawEntityMap = function decodeRawEntityMap(rawState) {\n var rawEntityMap = rawState.entityMap;\n var entityMap = {}; // TODO: Update this once we completely remove DraftEntity\n\n Object.keys(rawEntityMap).forEach(function (rawEntityKey) {\n var _rawEntityMap$rawEnti = rawEntityMap[rawEntityKey],\n type = _rawEntityMap$rawEnti.type,\n mutability = _rawEntityMap$rawEnti.mutability,\n data = _rawEntityMap$rawEnti.data; // get the key reference to created entity\n\n entityMap[rawEntityKey] = DraftEntity.__create(type, mutability, data || {});\n });\n return entityMap;\n};\n\nvar convertFromRawToDraftState = function convertFromRawToDraftState(rawState) {\n !Array.isArray(rawState.blocks) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'invalid RawDraftContentState') : invariant(false) : void 0; // decode entities\n\n var entityMap = decodeRawEntityMap(rawState); // decode blockMap\n\n var blockMap = decodeRawBlocks(rawState, entityMap); // create initial selection\n\n var selectionState = blockMap.isEmpty() ? new SelectionState() : SelectionState.createEmpty(blockMap.first().getKey());\n return new ContentState({\n blockMap: blockMap,\n entityMap: entityMap,\n selectionBefore: selectionState,\n selectionAfter: selectionState\n });\n};\n\nmodule.exports = convertFromRawToDraftState;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar CharacterMetadata = require(\"./CharacterMetadata\");\n\nvar Immutable = require(\"immutable\");\n\nvar List = Immutable.List;\n\nfunction createCharacterList(inlineStyles, entities) {\n var characterArray = inlineStyles.map(function (style, ii) {\n var entity = entities[ii];\n return CharacterMetadata.create({\n style: style,\n entity: entity\n });\n });\n return List(characterArray);\n}\n\nmodule.exports = createCharacterList;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar UnicodeUtils = require(\"fbjs/lib/UnicodeUtils\");\n\nvar substr = UnicodeUtils.substr;\n/**\n * Convert to native JavaScript string lengths to determine ranges.\n */\n\nfunction decodeEntityRanges(text, ranges) {\n var entities = Array(text.length).fill(null);\n\n if (ranges) {\n ranges.forEach(function (range) {\n // Using Unicode-enabled substrings converted to JavaScript lengths,\n // fill the output array with entity keys.\n var start = substr(text, 0, range.offset).length;\n var end = start + substr(text, range.offset, range.length).length;\n\n for (var ii = start; ii < end; ii++) {\n entities[ii] = range.key;\n }\n });\n }\n\n return entities;\n}\n\nmodule.exports = decodeEntityRanges;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar UnicodeUtils = require(\"fbjs/lib/UnicodeUtils\");\n\nvar _require = require(\"immutable\"),\n OrderedSet = _require.OrderedSet;\n\nvar substr = UnicodeUtils.substr;\nvar EMPTY_SET = OrderedSet();\n/**\n * Convert to native JavaScript string lengths to determine ranges.\n */\n\nfunction decodeInlineStyleRanges(text, ranges) {\n var styles = Array(text.length).fill(EMPTY_SET);\n\n if (ranges) {\n ranges.forEach(function (range) {\n var cursor = substr(text, 0, range.offset).length;\n var end = cursor + substr(text, range.offset, range.length).length;\n\n while (cursor < end) {\n styles[cursor] = styles[cursor].add(range.style);\n cursor++;\n }\n });\n }\n\n return styles;\n}\n\nmodule.exports = decodeInlineStyleRanges;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * Provides utilities for handling draftjs keys.\n *\n * @emails oncall+draft_js\n * \n * @format\n */\n'use strict';\n\nfunction notEmptyKey(key) {\n return key != null && key != '';\n}\n\nmodule.exports = {\n notEmptyKey: notEmptyKey\n};","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar DraftModifier = require(\"./DraftModifier\");\n\nvar EditorState = require(\"./EditorState\");\n\nvar UserAgent = require(\"fbjs/lib/UserAgent\");\n\nvar getEntityKeyForSelection = require(\"./getEntityKeyForSelection\");\n\nvar isEventHandled = require(\"./isEventHandled\");\n\nvar isSelectionAtLeafStart = require(\"./isSelectionAtLeafStart\");\n\nvar nullthrows = require(\"fbjs/lib/nullthrows\");\n\nvar setImmediate = require(\"fbjs/lib/setImmediate\"); // When nothing is focused, Firefox regards two characters, `'` and `/`, as\n// commands that should open and focus the \"quickfind\" search bar. This should\n// *never* happen while a contenteditable is focused, but as of v28, it\n// sometimes does, even when the keypress event target is the contenteditable.\n// This breaks the input. Special case these characters to ensure that when\n// they are typed, we prevent default on the event to make sure not to\n// trigger quickfind.\n\n\nvar FF_QUICKFIND_CHAR = \"'\";\nvar FF_QUICKFIND_LINK_CHAR = '/';\nvar isFirefox = UserAgent.isBrowser('Firefox');\n\nfunction mustPreventDefaultForCharacter(character) {\n return isFirefox && (character == FF_QUICKFIND_CHAR || character == FF_QUICKFIND_LINK_CHAR);\n}\n/**\n * Replace the current selection with the specified text string, with the\n * inline style and entity key applied to the newly inserted text.\n */\n\n\nfunction replaceText(editorState, text, inlineStyle, entityKey, forceSelection) {\n var contentState = DraftModifier.replaceText(editorState.getCurrentContent(), editorState.getSelection(), text, inlineStyle, entityKey);\n return EditorState.push(editorState, contentState, 'insert-characters', forceSelection);\n}\n/**\n * When `onBeforeInput` executes, the browser is attempting to insert a\n * character into the editor. Apply this character data to the document,\n * allowing native insertion if possible.\n *\n * Native insertion is encouraged in order to limit re-rendering and to\n * preserve spellcheck highlighting, which disappears or flashes if re-render\n * occurs on the relevant text nodes.\n */\n\n\nfunction editOnBeforeInput(editor, e) {\n if (editor._pendingStateFromBeforeInput !== undefined) {\n editor.update(editor._pendingStateFromBeforeInput);\n editor._pendingStateFromBeforeInput = undefined;\n }\n\n var editorState = editor._latestEditorState;\n var chars = e.data; // In some cases (ex: IE ideographic space insertion) no character data\n // is provided. There's nothing to do when this happens.\n\n if (!chars) {\n return;\n } // Allow the top-level component to handle the insertion manually. This is\n // useful when triggering interesting behaviors for a character insertion,\n // Simple examples: replacing a raw text ':)' with a smile emoji or image\n // decorator, or setting a block to be a list item after typing '- ' at the\n // start of the block.\n\n\n if (editor.props.handleBeforeInput && isEventHandled(editor.props.handleBeforeInput(chars, editorState, e.timeStamp))) {\n e.preventDefault();\n return;\n } // If selection is collapsed, conditionally allow native behavior. This\n // reduces re-renders and preserves spellcheck highlighting. If the selection\n // is not collapsed, we will re-render.\n\n\n var selection = editorState.getSelection();\n var selectionStart = selection.getStartOffset();\n var anchorKey = selection.getAnchorKey();\n\n if (!selection.isCollapsed()) {\n e.preventDefault();\n editor.update(replaceText(editorState, chars, editorState.getCurrentInlineStyle(), getEntityKeyForSelection(editorState.getCurrentContent(), editorState.getSelection()), true));\n return;\n }\n\n var newEditorState = replaceText(editorState, chars, editorState.getCurrentInlineStyle(), getEntityKeyForSelection(editorState.getCurrentContent(), editorState.getSelection()), false); // Bunch of different cases follow where we need to prevent native insertion.\n\n var mustPreventNative = false;\n\n if (!mustPreventNative) {\n // Browsers tend to insert text in weird places in the DOM when typing at\n // the start of a leaf, so we'll handle it ourselves.\n mustPreventNative = isSelectionAtLeafStart(editor._latestCommittedEditorState);\n }\n\n if (!mustPreventNative) {\n // Let's say we have a decorator that highlights hashtags. In many cases\n // we need to prevent native behavior and rerender ourselves --\n // particularly, any case *except* where the inserted characters end up\n // anywhere except exactly where you put them.\n //\n // Using [] to denote a decorated leaf, some examples:\n //\n // 1. 'hi #' and append 'f'\n // desired rendering: 'hi [#f]'\n // native rendering would be: 'hi #f' (incorrect)\n //\n // 2. 'x [#foo]' and insert '#' before 'f'\n // desired rendering: 'x #[#foo]'\n // native rendering would be: 'x [##foo]' (incorrect)\n //\n // 3. '[#foobar]' and insert ' ' between 'foo' and 'bar'\n // desired rendering: '[#foo] bar'\n // native rendering would be: '[#foo bar]' (incorrect)\n //\n // 4. '[#foo]' and delete '#' [won't use this beforeinput codepath though]\n // desired rendering: 'foo'\n // native rendering would be: '[foo]' (incorrect)\n //\n // 5. '[#foo]' and append 'b'\n // desired rendering: '[#foob]'\n // native rendering would be: '[#foob]'\n // (native insertion here would be ok for decorators like simple spans,\n // but not more complex decorators. To be safe, we need to prevent it.)\n //\n // It is safe to allow native insertion if and only if the full list of\n // decorator ranges matches what we expect native insertion to give, and\n // the range lengths have not changed. We don't need to compare the content\n // because the only possible mutation to consider here is inserting plain\n // text and decorators can't affect text content.\n var oldBlockTree = editorState.getBlockTree(anchorKey);\n var newBlockTree = newEditorState.getBlockTree(anchorKey);\n mustPreventNative = oldBlockTree.size !== newBlockTree.size || oldBlockTree.zip(newBlockTree).some(function (_ref) {\n var oldLeafSet = _ref[0],\n newLeafSet = _ref[1];\n // selectionStart is guaranteed to be selectionEnd here\n var oldStart = oldLeafSet.get('start');\n var adjustedStart = oldStart + (oldStart >= selectionStart ? chars.length : 0);\n var oldEnd = oldLeafSet.get('end');\n var adjustedEnd = oldEnd + (oldEnd >= selectionStart ? chars.length : 0);\n var newStart = newLeafSet.get('start');\n var newEnd = newLeafSet.get('end');\n var newDecoratorKey = newLeafSet.get('decoratorKey');\n return (// Different decorators\n oldLeafSet.get('decoratorKey') !== newDecoratorKey || // Different number of inline styles\n oldLeafSet.get('leaves').size !== newLeafSet.get('leaves').size || // Different effective decorator position\n adjustedStart !== newStart || adjustedEnd !== newEnd || // Decorator already existed and its length changed\n newDecoratorKey != null && newEnd - newStart !== oldEnd - oldStart\n );\n });\n }\n\n if (!mustPreventNative) {\n mustPreventNative = mustPreventDefaultForCharacter(chars);\n }\n\n if (!mustPreventNative) {\n mustPreventNative = nullthrows(newEditorState.getDirectionMap()).get(anchorKey) !== nullthrows(editorState.getDirectionMap()).get(anchorKey);\n }\n\n if (mustPreventNative) {\n e.preventDefault();\n newEditorState = EditorState.set(newEditorState, {\n forceSelection: true\n });\n editor.update(newEditorState);\n return;\n } // We made it all the way! Let the browser do its thing and insert the char.\n\n\n newEditorState = EditorState.set(newEditorState, {\n nativelyRenderedContent: newEditorState.getCurrentContent()\n }); // The native event is allowed to occur. To allow user onChange handlers to\n // change the inserted text, we wait until the text is actually inserted\n // before we actually update our state. That way when we rerender, the text\n // we see in the DOM will already have been inserted properly.\n\n editor._pendingStateFromBeforeInput = newEditorState;\n setImmediate(function () {\n if (editor._pendingStateFromBeforeInput !== undefined) {\n editor.update(editor._pendingStateFromBeforeInput);\n editor._pendingStateFromBeforeInput = undefined;\n }\n });\n}\n\nmodule.exports = editOnBeforeInput;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar EditorState = require(\"./EditorState\");\n\nvar containsNode = require(\"fbjs/lib/containsNode\");\n\nvar getActiveElement = require(\"fbjs/lib/getActiveElement\");\n\nfunction editOnBlur(editor, e) {\n // In a contentEditable element, when you select a range and then click\n // another active element, this does trigger a `blur` event but will not\n // remove the DOM selection from the contenteditable.\n // This is consistent across all browsers, but we prefer that the editor\n // behave like a textarea, where a `blur` event clears the DOM selection.\n // We therefore force the issue to be certain, checking whether the active\n // element is `body` to force it when blurring occurs within the window (as\n // opposed to clicking to another tab or window).\n var ownerDocument = e.currentTarget.ownerDocument;\n\n if ( // This ESLint rule conflicts with `sketchy-null-bool` flow check\n // eslint-disable-next-line no-extra-boolean-cast\n !Boolean(editor.props.preserveSelectionOnBlur) && getActiveElement(ownerDocument) === ownerDocument.body) {\n var _selection = ownerDocument.defaultView.getSelection();\n\n var editorNode = editor.editor;\n\n if (_selection.rangeCount === 1 && containsNode(editorNode, _selection.anchorNode) && containsNode(editorNode, _selection.focusNode)) {\n _selection.removeAllRanges();\n }\n }\n\n var editorState = editor._latestEditorState;\n var currentSelection = editorState.getSelection();\n\n if (!currentSelection.getHasFocus()) {\n return;\n }\n\n var selection = currentSelection.set('hasFocus', false);\n editor.props.onBlur && editor.props.onBlur(e);\n editor.update(EditorState.acceptSelection(editorState, selection));\n}\n\nmodule.exports = editOnBlur;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar EditorState = require(\"./EditorState\");\n/**\n * The user has begun using an IME input system. Switching to `composite` mode\n * allows handling composition input and disables other edit behavior.\n */\n\n\nfunction editOnCompositionStart(editor, e) {\n editor.setMode('composite');\n editor.update(EditorState.set(editor._latestEditorState, {\n inCompositionMode: true\n })); // Allow composition handler to interpret the compositionstart event\n\n editor._onCompositionStart(e);\n}\n\nmodule.exports = editOnCompositionStart;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar getFragmentFromSelection = require(\"./getFragmentFromSelection\");\n/**\n * If we have a selection, create a ContentState fragment and store\n * it in our internal clipboard. Subsequent paste events will use this\n * fragment if no external clipboard data is supplied.\n */\n\n\nfunction editOnCopy(editor, e) {\n var editorState = editor._latestEditorState;\n var selection = editorState.getSelection(); // No selection, so there's nothing to copy.\n\n if (selection.isCollapsed()) {\n e.preventDefault();\n return;\n }\n\n editor.setClipboard(getFragmentFromSelection(editor._latestEditorState));\n}\n\nmodule.exports = editOnCopy;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar DraftModifier = require(\"./DraftModifier\");\n\nvar EditorState = require(\"./EditorState\");\n\nvar Style = require(\"fbjs/lib/Style\");\n\nvar getFragmentFromSelection = require(\"./getFragmentFromSelection\");\n\nvar getScrollPosition = require(\"fbjs/lib/getScrollPosition\");\n\nvar isNode = require(\"./isInstanceOfNode\");\n/**\n * On `cut` events, native behavior is allowed to occur so that the system\n * clipboard is set properly. This means that we need to take steps to recover\n * the editor DOM state after the `cut` has occurred in order to maintain\n * control of the component.\n *\n * In addition, we can keep a copy of the removed fragment, including all\n * styles and entities, for use as an internal paste.\n */\n\n\nfunction editOnCut(editor, e) {\n var editorState = editor._latestEditorState;\n var selection = editorState.getSelection();\n var element = e.target;\n var scrollPosition; // No selection, so there's nothing to cut.\n\n if (selection.isCollapsed()) {\n e.preventDefault();\n return;\n } // Track the current scroll position so that it can be forced back in place\n // after the editor regains control of the DOM.\n\n\n if (isNode(element)) {\n var node = element;\n scrollPosition = getScrollPosition(Style.getScrollParent(node));\n }\n\n var fragment = getFragmentFromSelection(editorState);\n editor.setClipboard(fragment); // Set `cut` mode to disable all event handling temporarily.\n\n editor.setMode('cut'); // Let native `cut` behavior occur, then recover control.\n\n setTimeout(function () {\n editor.restoreEditorDOM(scrollPosition);\n editor.exitCurrentMode();\n editor.update(removeFragment(editorState));\n }, 0);\n}\n\nfunction removeFragment(editorState) {\n var newContent = DraftModifier.removeRange(editorState.getCurrentContent(), editorState.getSelection(), 'forward');\n return EditorState.push(editorState, newContent, 'remove-range');\n}\n\nmodule.exports = editOnCut;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\n/**\n * Drag behavior has begun from outside the editor element.\n */\nfunction editOnDragOver(editor, e) {\n editor.setMode('drag');\n e.preventDefault();\n}\n\nmodule.exports = editOnDragOver;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\n/**\n * A `dragstart` event has begun within the text editor component.\n */\nfunction editOnDragStart(editor) {\n editor._internalDrag = true;\n editor.setMode('drag');\n}\n\nmodule.exports = editOnDragStart;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar EditorState = require(\"./EditorState\");\n\nvar UserAgent = require(\"fbjs/lib/UserAgent\");\n\nfunction editOnFocus(editor, e) {\n var editorState = editor._latestEditorState;\n var currentSelection = editorState.getSelection();\n\n if (currentSelection.getHasFocus()) {\n return;\n }\n\n var selection = currentSelection.set('hasFocus', true);\n editor.props.onFocus && editor.props.onFocus(e); // When the tab containing this text editor is hidden and the user does a\n // find-in-page in a _different_ tab, Chrome on Mac likes to forget what the\n // selection was right after sending this focus event and (if you let it)\n // moves the cursor back to the beginning of the editor, so we force the\n // selection here instead of simply accepting it in order to preserve the\n // old cursor position. See https://crbug.com/540004.\n // But it looks like this is fixed in Chrome 60.0.3081.0.\n // Other browsers also don't have this bug, so we prefer to acceptSelection\n // when possible, to ensure that unfocusing and refocusing a Draft editor\n // doesn't preserve the selection, matching how textareas work.\n\n if (UserAgent.isBrowser('Chrome < 60.0.3081.0')) {\n editor.update(EditorState.forceSelection(editorState, selection));\n } else {\n editor.update(EditorState.acceptSelection(editorState, selection));\n }\n}\n\nmodule.exports = editOnFocus;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar DraftModifier = require(\"./DraftModifier\");\n\nvar DraftOffsetKey = require(\"./DraftOffsetKey\");\n\nvar EditorState = require(\"./EditorState\");\n\nvar UserAgent = require(\"fbjs/lib/UserAgent\");\n\nvar _require = require(\"./draftKeyUtils\"),\n notEmptyKey = _require.notEmptyKey;\n\nvar findAncestorOffsetKey = require(\"./findAncestorOffsetKey\");\n\nvar keyCommandPlainBackspace = require(\"./keyCommandPlainBackspace\");\n\nvar nullthrows = require(\"fbjs/lib/nullthrows\");\n\nvar isGecko = UserAgent.isEngine('Gecko');\nvar DOUBLE_NEWLINE = '\\n\\n';\n\nfunction onInputType(inputType, editorState) {\n switch (inputType) {\n case 'deleteContentBackward':\n return keyCommandPlainBackspace(editorState);\n }\n\n return editorState;\n}\n/**\n * This function serves two purposes\n *\n * 1. To update the editorState and call onChange method with the new\n * editorState. This editorState is calculated in editOnBeforeInput but the\n * onChange method is not called with the new state until this method does it.\n * It is done to handle a specific case where certain character inputs might\n * be replaced with something else. E.g. snippets ('rc' might be replaced\n * with boilerplate code for react component). More information on the\n * exact problem can be found here -\n * https://github.com/facebook/draft-js/commit/07892ba479bd4dfc6afd1e0ed179aaf51cd138b1\n *\n * 2. intended to handle spellcheck and autocorrect changes,\n * which occur in the DOM natively without any opportunity to observe or\n * interpret the changes before they occur.\n *\n * The `input` event fires in contentEditable elements reliably for non-IE\n * browsers, immediately after changes occur to the editor DOM. Since our other\n * handlers override or otherwise handle cover other varieties of text input,\n * the DOM state should match the model in all controlled input cases. Thus,\n * when an `input` change leads to a DOM/model mismatch, the change should be\n * due to a spellcheck change, and we can incorporate it into our model.\n */\n\n\nfunction editOnInput(editor, e) {\n if (editor._pendingStateFromBeforeInput !== undefined) {\n editor.update(editor._pendingStateFromBeforeInput);\n editor._pendingStateFromBeforeInput = undefined;\n } // at this point editor is not null for sure (after input)\n\n\n var castedEditorElement = editor.editor;\n var domSelection = castedEditorElement.ownerDocument.defaultView.getSelection();\n var anchorNode = domSelection.anchorNode,\n isCollapsed = domSelection.isCollapsed;\n var isNotTextOrElementNode = (anchorNode === null || anchorNode === void 0 ? void 0 : anchorNode.nodeType) !== Node.TEXT_NODE && (anchorNode === null || anchorNode === void 0 ? void 0 : anchorNode.nodeType) !== Node.ELEMENT_NODE;\n\n if (anchorNode == null || isNotTextOrElementNode) {\n // TODO: (t16149272) figure out context for this change\n return;\n }\n\n if (anchorNode.nodeType === Node.TEXT_NODE && (anchorNode.previousSibling !== null || anchorNode.nextSibling !== null)) {\n // When typing at the beginning of a visual line, Chrome splits the text\n // nodes into two. Why? No one knows. This commit is suspicious:\n // https://chromium.googlesource.com/chromium/src/+/a3b600981286b135632371477f902214c55a1724\n // To work around, we'll merge the sibling text nodes back into this one.\n var span = anchorNode.parentNode;\n\n if (span == null) {\n // Handle null-parent case.\n return;\n }\n\n anchorNode.nodeValue = span.textContent;\n\n for (var child = span.firstChild; child != null; child = child.nextSibling) {\n if (child !== anchorNode) {\n span.removeChild(child);\n }\n }\n }\n\n var domText = anchorNode.textContent;\n var editorState = editor._latestEditorState;\n var offsetKey = nullthrows(findAncestorOffsetKey(anchorNode));\n\n var _DraftOffsetKey$decod = DraftOffsetKey.decode(offsetKey),\n blockKey = _DraftOffsetKey$decod.blockKey,\n decoratorKey = _DraftOffsetKey$decod.decoratorKey,\n leafKey = _DraftOffsetKey$decod.leafKey;\n\n var _editorState$getBlock = editorState.getBlockTree(blockKey).getIn([decoratorKey, 'leaves', leafKey]),\n start = _editorState$getBlock.start,\n end = _editorState$getBlock.end;\n\n var content = editorState.getCurrentContent();\n var block = content.getBlockForKey(blockKey);\n var modelText = block.getText().slice(start, end); // Special-case soft newlines here. If the DOM text ends in a soft newline,\n // we will have manually inserted an extra soft newline in DraftEditorLeaf.\n // We want to remove this extra newline for the purpose of our comparison\n // of DOM and model text.\n\n if (domText.endsWith(DOUBLE_NEWLINE)) {\n domText = domText.slice(0, -1);\n } // No change -- the DOM is up to date. Nothing to do here.\n\n\n if (domText === modelText) {\n // This can be buggy for some Android keyboards because they don't fire\n // standard onkeydown/pressed events and only fired editOnInput\n // so domText is already changed by the browser and ends up being equal\n // to modelText unexpectedly.\n // Newest versions of Android support the dom-inputevent-inputtype\n // and we can use the `inputType` to properly apply the state changes.\n\n /* $FlowFixMe[prop-missing] inputType is only defined on a draft of a\n * standard. https://w3c.github.io/input-events/#dom-inputevent-inputtype\n */\n var inputType = e.nativeEvent.inputType;\n\n if (inputType) {\n var newEditorState = onInputType(inputType, editorState);\n\n if (newEditorState !== editorState) {\n editor.restoreEditorDOM();\n editor.update(newEditorState);\n return;\n }\n }\n\n return;\n }\n\n var selection = editorState.getSelection(); // We'll replace the entire leaf with the text content of the target.\n\n var targetRange = selection.merge({\n anchorOffset: start,\n focusOffset: end,\n isBackward: false\n });\n var entityKey = block.getEntityAt(start);\n var entity = notEmptyKey(entityKey) ? content.getEntity(entityKey) : null;\n var entityType = entity != null ? entity.getMutability() : null;\n var preserveEntity = entityType === 'MUTABLE'; // Immutable or segmented entities cannot properly be handled by the\n // default browser undo, so we have to use a different change type to\n // force using our internal undo method instead of falling through to the\n // native browser undo.\n\n var changeType = preserveEntity ? 'spellcheck-change' : 'apply-entity';\n var newContent = DraftModifier.replaceText(content, targetRange, domText, block.getInlineStyleAt(start), preserveEntity ? block.getEntityAt(start) : null);\n var anchorOffset, focusOffset, startOffset, endOffset;\n\n if (isGecko) {\n // Firefox selection does not change while the context menu is open, so\n // we preserve the anchor and focus values of the DOM selection.\n anchorOffset = domSelection.anchorOffset;\n focusOffset = domSelection.focusOffset;\n startOffset = start + Math.min(anchorOffset, focusOffset);\n endOffset = startOffset + Math.abs(anchorOffset - focusOffset);\n anchorOffset = startOffset;\n focusOffset = endOffset;\n } else {\n // Browsers other than Firefox may adjust DOM selection while the context\n // menu is open, and Safari autocorrect is prone to providing an inaccurate\n // DOM selection. Don't trust it. Instead, use our existing SelectionState\n // and adjust it based on the number of characters changed during the\n // mutation.\n var charDelta = domText.length - modelText.length;\n startOffset = selection.getStartOffset();\n endOffset = selection.getEndOffset();\n anchorOffset = isCollapsed ? endOffset + charDelta : startOffset;\n focusOffset = endOffset + charDelta;\n } // Segmented entities are completely or partially removed when their\n // text content changes. For this case we do not want any text to be selected\n // after the change, so we are not merging the selection.\n\n\n var contentWithAdjustedDOMSelection = newContent.merge({\n selectionBefore: content.getSelectionAfter(),\n selectionAfter: selection.merge({\n anchorOffset: anchorOffset,\n focusOffset: focusOffset\n })\n });\n editor.update(EditorState.push(editorState, contentWithAdjustedDOMSelection, changeType));\n}\n\nmodule.exports = editOnInput;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar DraftModifier = require(\"./DraftModifier\");\n\nvar EditorState = require(\"./EditorState\");\n\nvar KeyBindingUtil = require(\"./KeyBindingUtil\");\n\nvar Keys = require(\"fbjs/lib/Keys\");\n\nvar SecondaryClipboard = require(\"./SecondaryClipboard\");\n\nvar UserAgent = require(\"fbjs/lib/UserAgent\");\n\nvar isEventHandled = require(\"./isEventHandled\");\n\nvar keyCommandBackspaceToStartOfLine = require(\"./keyCommandBackspaceToStartOfLine\");\n\nvar keyCommandBackspaceWord = require(\"./keyCommandBackspaceWord\");\n\nvar keyCommandDeleteWord = require(\"./keyCommandDeleteWord\");\n\nvar keyCommandInsertNewline = require(\"./keyCommandInsertNewline\");\n\nvar keyCommandMoveSelectionToEndOfBlock = require(\"./keyCommandMoveSelectionToEndOfBlock\");\n\nvar keyCommandMoveSelectionToStartOfBlock = require(\"./keyCommandMoveSelectionToStartOfBlock\");\n\nvar keyCommandPlainBackspace = require(\"./keyCommandPlainBackspace\");\n\nvar keyCommandPlainDelete = require(\"./keyCommandPlainDelete\");\n\nvar keyCommandTransposeCharacters = require(\"./keyCommandTransposeCharacters\");\n\nvar keyCommandUndo = require(\"./keyCommandUndo\");\n\nvar isOptionKeyCommand = KeyBindingUtil.isOptionKeyCommand;\nvar isChrome = UserAgent.isBrowser('Chrome');\n/**\n * Map a `DraftEditorCommand` command value to a corresponding function.\n */\n\nfunction onKeyCommand(command, editorState, e) {\n switch (command) {\n case 'redo':\n return EditorState.redo(editorState);\n\n case 'delete':\n return keyCommandPlainDelete(editorState);\n\n case 'delete-word':\n return keyCommandDeleteWord(editorState);\n\n case 'backspace':\n return keyCommandPlainBackspace(editorState);\n\n case 'backspace-word':\n return keyCommandBackspaceWord(editorState);\n\n case 'backspace-to-start-of-line':\n return keyCommandBackspaceToStartOfLine(editorState, e);\n\n case 'split-block':\n return keyCommandInsertNewline(editorState);\n\n case 'transpose-characters':\n return keyCommandTransposeCharacters(editorState);\n\n case 'move-selection-to-start-of-block':\n return keyCommandMoveSelectionToStartOfBlock(editorState);\n\n case 'move-selection-to-end-of-block':\n return keyCommandMoveSelectionToEndOfBlock(editorState);\n\n case 'secondary-cut':\n return SecondaryClipboard.cut(editorState);\n\n case 'secondary-paste':\n return SecondaryClipboard.paste(editorState);\n\n default:\n return editorState;\n }\n}\n/**\n * Intercept keydown behavior to handle keys and commands manually, if desired.\n *\n * Keydown combinations may be mapped to `DraftCommand` values, which may\n * correspond to command functions that modify the editor or its contents.\n *\n * See `getDefaultKeyBinding` for defaults. Alternatively, the top-level\n * component may provide a custom mapping via the `keyBindingFn` prop.\n */\n\n\nfunction editOnKeyDown(editor, e) {\n var keyCode = e.which;\n var editorState = editor._latestEditorState;\n\n function callDeprecatedHandler(handlerName) {\n var deprecatedHandler = editor.props[handlerName];\n\n if (deprecatedHandler) {\n deprecatedHandler(e);\n return true;\n } else {\n return false;\n }\n }\n\n switch (keyCode) {\n case Keys.RETURN:\n e.preventDefault(); // The top-level component may manually handle newline insertion. If\n // no special handling is performed, fall through to command handling.\n\n if (editor.props.handleReturn && isEventHandled(editor.props.handleReturn(e, editorState))) {\n return;\n }\n\n break;\n\n case Keys.ESC:\n e.preventDefault();\n\n if (callDeprecatedHandler('onEscape')) {\n return;\n }\n\n break;\n\n case Keys.TAB:\n if (callDeprecatedHandler('onTab')) {\n return;\n }\n\n break;\n\n case Keys.UP:\n if (callDeprecatedHandler('onUpArrow')) {\n return;\n }\n\n break;\n\n case Keys.RIGHT:\n if (callDeprecatedHandler('onRightArrow')) {\n return;\n }\n\n break;\n\n case Keys.DOWN:\n if (callDeprecatedHandler('onDownArrow')) {\n return;\n }\n\n break;\n\n case Keys.LEFT:\n if (callDeprecatedHandler('onLeftArrow')) {\n return;\n }\n\n break;\n\n case Keys.SPACE:\n // Prevent Chrome on OSX behavior where option + space scrolls.\n if (isChrome && isOptionKeyCommand(e)) {\n e.preventDefault();\n }\n\n }\n\n var command = editor.props.keyBindingFn(e); // If no command is specified, allow keydown event to continue.\n\n if (command == null || command === '') {\n if (keyCode === Keys.SPACE && isChrome && isOptionKeyCommand(e)) {\n // The default keydown event has already been prevented in order to stop\n // Chrome from scrolling. Insert a nbsp into the editor as OSX would for\n // other browsers.\n var contentState = DraftModifier.replaceText(editorState.getCurrentContent(), editorState.getSelection(), \"\\xA0\");\n editor.update(EditorState.push(editorState, contentState, 'insert-characters'));\n }\n\n return;\n }\n\n if (command === 'undo') {\n // Since undo requires some special updating behavior to keep the editor\n // in sync, handle it separately.\n keyCommandUndo(e, editorState, editor.update);\n return;\n } // At this point, we know that we're handling a command of some kind, so\n // we don't want to insert a character following the keydown.\n\n\n e.preventDefault(); // Allow components higher up the tree to handle the command first.\n\n if (editor.props.handleKeyCommand && isEventHandled(editor.props.handleKeyCommand(command, editorState, e.timeStamp))) {\n return;\n }\n\n var newState = onKeyCommand(command, editorState, e);\n\n if (newState !== editorState) {\n editor.update(newState);\n }\n}\n\nmodule.exports = editOnKeyDown;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar BlockMapBuilder = require(\"./BlockMapBuilder\");\n\nvar CharacterMetadata = require(\"./CharacterMetadata\");\n\nvar DataTransfer = require(\"fbjs/lib/DataTransfer\");\n\nvar DraftModifier = require(\"./DraftModifier\");\n\nvar DraftPasteProcessor = require(\"./DraftPasteProcessor\");\n\nvar EditorState = require(\"./EditorState\");\n\nvar RichTextEditorUtil = require(\"./RichTextEditorUtil\");\n\nvar getEntityKeyForSelection = require(\"./getEntityKeyForSelection\");\n\nvar getTextContentFromFiles = require(\"./getTextContentFromFiles\");\n\nvar isEventHandled = require(\"./isEventHandled\");\n\nvar splitTextIntoTextBlocks = require(\"./splitTextIntoTextBlocks\");\n/**\n * Paste content.\n */\n\n\nfunction editOnPaste(editor, e) {\n e.preventDefault();\n var data = new DataTransfer(e.clipboardData); // Get files, unless this is likely to be a string the user wants inline.\n\n if (!data.isRichText()) {\n var files = data.getFiles();\n var defaultFileText = data.getText();\n\n if (files.length > 0) {\n // Allow customized paste handling for images, etc. Otherwise, fall\n // through to insert text contents into the editor.\n if (editor.props.handlePastedFiles && isEventHandled(editor.props.handlePastedFiles(files))) {\n return;\n }\n /* $FlowFixMe[incompatible-call] This comment suppresses an error found\n * DataTransfer was typed. getFiles() returns an array of , not Blob */\n\n\n getTextContentFromFiles(files, function (\n /*string*/\n fileText) {\n fileText = fileText || defaultFileText;\n\n if (!fileText) {\n return;\n }\n\n var editorState = editor._latestEditorState;\n var blocks = splitTextIntoTextBlocks(fileText);\n var character = CharacterMetadata.create({\n style: editorState.getCurrentInlineStyle(),\n entity: getEntityKeyForSelection(editorState.getCurrentContent(), editorState.getSelection())\n });\n var currentBlockType = RichTextEditorUtil.getCurrentBlockType(editorState);\n var text = DraftPasteProcessor.processText(blocks, character, currentBlockType);\n var fragment = BlockMapBuilder.createFromArray(text);\n var withInsertedText = DraftModifier.replaceWithFragment(editorState.getCurrentContent(), editorState.getSelection(), fragment);\n editor.update(EditorState.push(editorState, withInsertedText, 'insert-fragment'));\n });\n return;\n }\n }\n\n var textBlocks = [];\n var text = data.getText();\n var html = data.getHTML();\n var editorState = editor._latestEditorState;\n\n if (editor.props.formatPastedText) {\n var _editor$props$formatP = editor.props.formatPastedText(text, html),\n formattedText = _editor$props$formatP.text,\n formattedHtml = _editor$props$formatP.html;\n\n text = formattedText;\n html = formattedHtml;\n }\n\n if (editor.props.handlePastedText && isEventHandled(editor.props.handlePastedText(text, html, editorState))) {\n return;\n }\n\n if (text) {\n textBlocks = splitTextIntoTextBlocks(text);\n }\n\n if (!editor.props.stripPastedStyles) {\n // If the text from the paste event is rich content that matches what we\n // already have on the internal clipboard, assume that we should just use\n // the clipboard fragment for the paste. This will allow us to preserve\n // styling and entities, if any are present. Note that newlines are\n // stripped during comparison -- this is because copy/paste within the\n // editor in Firefox and IE will not include empty lines. The resulting\n // paste will preserve the newlines correctly.\n var internalClipboard = editor.getClipboard();\n\n if (!editor.props.formatPastedText && data.isRichText() && internalClipboard) {\n var _html;\n\n if ( // If the editorKey is present in the pasted HTML, it should be safe to\n // assume this is an internal paste.\n ((_html = html) === null || _html === void 0 ? void 0 : _html.indexOf(editor.getEditorKey())) !== -1 || // The copy may have been made within a single block, in which case the\n // editor key won't be part of the paste. In this case, just check\n // whether the pasted text matches the internal clipboard.\n textBlocks.length === 1 && internalClipboard.size === 1 && internalClipboard.first().getText() === text) {\n editor.update(insertFragment(editor._latestEditorState, internalClipboard));\n return;\n }\n } else if (internalClipboard && data.types.includes('com.apple.webarchive') && !data.types.includes('text/html') && areTextBlocksAndClipboardEqual(textBlocks, internalClipboard)) {\n // Safari does not properly store text/html in some cases.\n // Use the internalClipboard if present and equal to what is on\n // the clipboard. See https://bugs.webkit.org/show_bug.cgi?id=19893.\n editor.update(insertFragment(editor._latestEditorState, internalClipboard));\n return;\n } // If there is html paste data, try to parse that.\n\n\n if (html) {\n var htmlFragment = DraftPasteProcessor.processHTML(html, editor.props.blockRenderMap);\n\n if (htmlFragment) {\n var contentBlocks = htmlFragment.contentBlocks,\n entityMap = htmlFragment.entityMap;\n\n if (contentBlocks) {\n var htmlMap = BlockMapBuilder.createFromArray(contentBlocks);\n editor.update(insertFragment(editor._latestEditorState, htmlMap, entityMap));\n return;\n }\n }\n } // Otherwise, create a new fragment from our pasted text. Also\n // empty the internal clipboard, since it's no longer valid.\n\n\n editor.setClipboard(null);\n }\n\n if (textBlocks.length) {\n var character = CharacterMetadata.create({\n style: editorState.getCurrentInlineStyle(),\n entity: getEntityKeyForSelection(editorState.getCurrentContent(), editorState.getSelection())\n });\n var currentBlockType = RichTextEditorUtil.getCurrentBlockType(editorState);\n var textFragment = DraftPasteProcessor.processText(textBlocks, character, currentBlockType);\n var textMap = BlockMapBuilder.createFromArray(textFragment);\n editor.update(insertFragment(editor._latestEditorState, textMap));\n }\n}\n\nfunction insertFragment(editorState, fragment, entityMap) {\n var newContent = DraftModifier.replaceWithFragment(editorState.getCurrentContent(), editorState.getSelection(), fragment); // TODO: merge the entity map once we stop using DraftEntity\n // like this:\n // const mergedEntityMap = newContent.getEntityMap().merge(entityMap);\n\n return EditorState.push(editorState, newContent.set('entityMap', entityMap), 'insert-fragment');\n}\n\nfunction areTextBlocksAndClipboardEqual(textBlocks, blockMap) {\n return textBlocks.length === blockMap.size && blockMap.valueSeq().every(function (block, ii) {\n return block.getText() === textBlocks[ii];\n });\n}\n\nmodule.exports = editOnPaste;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar DraftJsDebugLogging = require(\"./DraftJsDebugLogging\");\n\nvar EditorState = require(\"./EditorState\");\n\nvar getContentEditableContainer = require(\"./getContentEditableContainer\");\n\nvar getDraftEditorSelection = require(\"./getDraftEditorSelection\");\n\nfunction editOnSelect(editor) {\n if (editor._blockSelectEvents || editor._latestEditorState !== editor.props.editorState) {\n if (editor._blockSelectEvents) {\n var _editorState = editor.props.editorState;\n\n var selectionState = _editorState.getSelection();\n\n DraftJsDebugLogging.logBlockedSelectionEvent({\n // For now I don't think we need any other info\n anonymizedDom: 'N/A',\n extraParams: JSON.stringify({\n stacktrace: new Error().stack\n }),\n selectionState: JSON.stringify(selectionState.toJS())\n });\n }\n\n return;\n }\n\n var editorState = editor.props.editorState;\n var documentSelection = getDraftEditorSelection(editorState, getContentEditableContainer(editor));\n var updatedSelectionState = documentSelection.selectionState;\n\n if (updatedSelectionState !== editorState.getSelection()) {\n if (documentSelection.needsRecovery) {\n editorState = EditorState.forceSelection(editorState, updatedSelectionState);\n } else {\n editorState = EditorState.acceptSelection(editorState, updatedSelectionState);\n }\n\n editor.update(editorState);\n }\n}\n\nmodule.exports = editOnSelect;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar DraftStringKey = require(\"./DraftStringKey\");\n\nvar UnicodeUtils = require(\"fbjs/lib/UnicodeUtils\");\n\nvar strlen = UnicodeUtils.strlen;\n/**\n * Convert to UTF-8 character counts for storage.\n */\n\nfunction encodeEntityRanges(block, storageMap) {\n var encoded = [];\n block.findEntityRanges(function (character) {\n return !!character.getEntity();\n }, function (\n /*number*/\n start,\n /*number*/\n end) {\n var text = block.getText();\n var key = block.getEntityAt(start);\n encoded.push({\n offset: strlen(text.slice(0, start)),\n length: strlen(text.slice(start, end)),\n // Encode the key as a number for range storage.\n key: Number(storageMap[DraftStringKey.stringify(key)])\n });\n });\n return encoded;\n}\n\nmodule.exports = encodeEntityRanges;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar UnicodeUtils = require(\"fbjs/lib/UnicodeUtils\");\n\nvar findRangesImmutable = require(\"./findRangesImmutable\");\n\nvar areEqual = function areEqual(a, b) {\n return a === b;\n};\n\nvar isTruthy = function isTruthy(a) {\n return !!a;\n};\n\nvar EMPTY_ARRAY = [];\n/**\n * Helper function for getting encoded styles for each inline style. Convert\n * to UTF-8 character counts for storage.\n */\n\nfunction getEncodedInlinesForType(block, styleList, styleToEncode) {\n var ranges = []; // Obtain an array with ranges for only the specified style.\n\n var filteredInlines = styleList.map(function (style) {\n return style.has(styleToEncode);\n }).toList();\n findRangesImmutable(filteredInlines, areEqual, // We only want to keep ranges with nonzero style values.\n isTruthy, function (start, end) {\n var text = block.getText();\n ranges.push({\n offset: UnicodeUtils.strlen(text.slice(0, start)),\n length: UnicodeUtils.strlen(text.slice(start, end)),\n style: styleToEncode\n });\n });\n return ranges;\n}\n/*\n * Retrieve the encoded arrays of inline styles, with each individual style\n * treated separately.\n */\n\n\nfunction encodeInlineStyleRanges(block) {\n var styleList = block.getCharacterList().map(function (c) {\n return c.getStyle();\n }).toList();\n var ranges = styleList.flatten().toSet().map(function (style) {\n return getEncodedInlinesForType(block, styleList, style);\n });\n return Array.prototype.concat.apply(EMPTY_ARRAY, ranges.toJS());\n}\n\nmodule.exports = encodeInlineStyleRanges;","\"use strict\";\n\n/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\nvar UnicodeUtils = require(\"fbjs/lib/UnicodeUtils\");\n\nvar getCorrectDocumentFromNode = require(\"./getCorrectDocumentFromNode\");\n\nvar getRangeClientRects = require(\"./getRangeClientRects\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n/**\n * Return the computed line height, in pixels, for the provided element.\n */\n\n\nfunction getLineHeightPx(element) {\n var computed = getComputedStyle(element);\n var correctDocument = getCorrectDocumentFromNode(element);\n var div = correctDocument.createElement('div');\n div.style.fontFamily = computed.fontFamily;\n div.style.fontSize = computed.fontSize;\n div.style.fontStyle = computed.fontStyle;\n div.style.fontWeight = computed.fontWeight;\n div.style.lineHeight = computed.lineHeight;\n div.style.position = 'absolute';\n div.textContent = 'M';\n var documentBody = correctDocument.body;\n !documentBody ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Missing document.body') : invariant(false) : void 0; // forced layout here\n\n documentBody.appendChild(div);\n var rect = div.getBoundingClientRect();\n documentBody.removeChild(div);\n return rect.height;\n}\n/**\n * Return whether every ClientRect in the provided list lies on the same line.\n *\n * We assume that the rects on the same line all contain the baseline, so the\n * lowest top line needs to be above the highest bottom line (i.e., if you were\n * to project the rects onto the y-axis, their intersection would be nonempty).\n *\n * In addition, we require that no two boxes are lineHeight (or more) apart at\n * either top or bottom, which helps protect against false positives for fonts\n * with extremely large glyph heights (e.g., with a font size of 17px, Zapfino\n * produces rects of height 58px!).\n */\n\n\nfunction areRectsOnOneLine(rects, lineHeight) {\n var minTop = Infinity;\n var minBottom = Infinity;\n var maxTop = -Infinity;\n var maxBottom = -Infinity;\n\n for (var ii = 0; ii < rects.length; ii++) {\n var rect = rects[ii];\n\n if (rect.width === 0 || rect.width === 1) {\n // When a range starts or ends a soft wrap, many browsers (Chrome, IE,\n // Safari) include an empty rect on the previous or next line. When the\n // text lies in a container whose position is not integral (e.g., from\n // margin: auto), Safari makes these empty rects have width 1 (instead of\n // 0). Having one-pixel-wide characters seems unlikely (and most browsers\n // report widths in subpixel precision anyway) so it's relatively safe to\n // skip over them.\n continue;\n }\n\n minTop = Math.min(minTop, rect.top);\n minBottom = Math.min(minBottom, rect.bottom);\n maxTop = Math.max(maxTop, rect.top);\n maxBottom = Math.max(maxBottom, rect.bottom);\n }\n\n return maxTop <= minBottom && maxTop - minTop < lineHeight && maxBottom - minBottom < lineHeight;\n}\n/**\n * Return the length of a node, as used by Range offsets.\n */\n\n\nfunction getNodeLength(node) {\n // http://www.w3.org/TR/dom/#concept-node-length\n switch (node.nodeType) {\n case Node.DOCUMENT_TYPE_NODE:\n return 0;\n\n case Node.TEXT_NODE:\n case Node.PROCESSING_INSTRUCTION_NODE:\n case Node.COMMENT_NODE:\n return node.length;\n\n default:\n return node.childNodes.length;\n }\n}\n/**\n * Given a collapsed range, move the start position backwards as far as\n * possible while the range still spans only a single line.\n */\n\n\nfunction expandRangeToStartOfLine(range) {\n !range.collapsed ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'expandRangeToStartOfLine: Provided range is not collapsed.') : invariant(false) : void 0;\n range = range.cloneRange();\n var containingElement = range.startContainer;\n\n if (containingElement.nodeType !== 1) {\n containingElement = containingElement.parentNode;\n }\n\n var lineHeight = getLineHeightPx(containingElement); // Imagine our text looks like:\n //
once upon a time, there was a boy\n // who lived under^ the\n // stairs in a small closet.
\n // where the caret represents the cursor. First, we crawl up the tree until\n // the range spans multiple lines (setting the start point to before\n // \"\", then before \"
\"), then at each level we do a search to\n // find the latest point which is still on a previous line. We'll find that\n // the break point is inside the span, then inside the , then in its text\n // node child, the actual break point before \"who\".\n\n var bestContainer = range.endContainer;\n var bestOffset = range.endOffset;\n range.setStart(range.startContainer, 0);\n\n while (areRectsOnOneLine(getRangeClientRects(range), lineHeight)) {\n bestContainer = range.startContainer;\n bestOffset = range.startOffset;\n !bestContainer.parentNode ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Found unexpected detached subtree when traversing.') : invariant(false) : void 0;\n range.setStartBefore(bestContainer);\n\n if (bestContainer.nodeType === 1 && getComputedStyle(bestContainer).display !== 'inline') {\n // The start of the line is never in a different block-level container.\n break;\n }\n } // In the above example, range now spans from \"
\" to \"under\",\n // bestContainer is
, and bestOffset is 1 (index of inside
)].\n // Picking out which child to recurse into here is a special case since we\n // don't want to check past -- once we find that the final range starts\n // in , we can look at all of its children (and all of their children)\n // to find the break point.\n // At all times, (bestContainer, bestOffset) is the latest single-line start\n // point that we know of.\n\n\n var currentContainer = bestContainer;\n var maxIndexToConsider = bestOffset - 1;\n\n do {\n var nodeValue = currentContainer.nodeValue;\n var ii = maxIndexToConsider;\n\n for (; ii >= 0; ii--) {\n if (nodeValue != null && ii > 0 && UnicodeUtils.isSurrogatePair(nodeValue, ii - 1)) {\n // We're in the middle of a surrogate pair -- skip over so we never\n // return a range with an endpoint in the middle of a code point.\n continue;\n }\n\n range.setStart(currentContainer, ii);\n\n if (areRectsOnOneLine(getRangeClientRects(range), lineHeight)) {\n bestContainer = currentContainer;\n bestOffset = ii;\n } else {\n break;\n }\n }\n\n if (ii === -1 || currentContainer.childNodes.length === 0) {\n // If ii === -1, then (bestContainer, bestOffset), which is equal to\n // (currentContainer, 0), was a single-line start point but a start\n // point before currentContainer wasn't, so the line break seems to\n // have occurred immediately after currentContainer's start tag\n //\n // If currentContainer.childNodes.length === 0, we're already at a\n // terminal node (e.g., text node) and should return our current best.\n break;\n }\n\n currentContainer = currentContainer.childNodes[ii];\n maxIndexToConsider = getNodeLength(currentContainer);\n } while (true);\n\n range.setStart(bestContainer, bestOffset);\n return range;\n}\n\nmodule.exports = expandRangeToStartOfLine;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar getCorrectDocumentFromNode = require(\"./getCorrectDocumentFromNode\");\n\nvar getSelectionOffsetKeyForNode = require(\"./getSelectionOffsetKeyForNode\");\n/**\n * Get the key from the node's nearest offset-aware ancestor.\n */\n\n\nfunction findAncestorOffsetKey(node) {\n var searchNode = node;\n\n while (searchNode && searchNode !== getCorrectDocumentFromNode(node).documentElement) {\n var key = getSelectionOffsetKeyForNode(searchNode);\n\n if (key != null) {\n return key;\n }\n\n searchNode = searchNode.parentNode;\n }\n\n return null;\n}\n\nmodule.exports = findAncestorOffsetKey;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\n/**\n * Search through an array to find contiguous stretches of elements that\n * match a specified filter function.\n *\n * When ranges are found, execute a specified `found` function to supply\n * the values to the caller.\n */\nfunction findRangesImmutable(haystack, areEqualFn, filterFn, foundFn) {\n if (!haystack.size) {\n return;\n }\n\n var cursor = 0;\n haystack.reduce(function (value, nextValue, nextIndex) {\n if (!areEqualFn(value, nextValue)) {\n if (filterFn(value)) {\n foundFn(cursor, nextIndex);\n }\n\n cursor = nextIndex;\n }\n\n return nextValue;\n });\n filterFn(haystack.last()) && foundFn(cursor, haystack.count());\n}\n\nmodule.exports = findRangesImmutable;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar seenKeys = {};\nvar MULTIPLIER = Math.pow(2, 24);\n\nfunction generateRandomKey() {\n var key;\n\n while (key === undefined || seenKeys.hasOwnProperty(key) || !isNaN(+key)) {\n key = Math.floor(Math.random() * MULTIPLIER).toString(32);\n }\n\n seenKeys[key] = true;\n return key;\n}\n\nmodule.exports = generateRandomKey;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar DraftEntitySegments = require(\"./DraftEntitySegments\");\n\nvar getRangesForDraftEntity = require(\"./getRangesForDraftEntity\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n/**\n * Given a SelectionState and a removal direction, determine the entire range\n * that should be removed from a ContentState. This is based on any entities\n * within the target, with their `mutability` values taken into account.\n *\n * For instance, if we are attempting to remove part of an \"immutable\" entity\n * range, the entire entity must be removed. The returned `SelectionState`\n * will be adjusted accordingly.\n */\n\n\nfunction getCharacterRemovalRange(entityMap, startBlock, endBlock, selectionState, direction) {\n var start = selectionState.getStartOffset();\n var end = selectionState.getEndOffset();\n var startEntityKey = startBlock.getEntityAt(start);\n var endEntityKey = endBlock.getEntityAt(end - 1);\n\n if (!startEntityKey && !endEntityKey) {\n return selectionState;\n }\n\n var newSelectionState = selectionState;\n\n if (startEntityKey && startEntityKey === endEntityKey) {\n newSelectionState = getEntityRemovalRange(entityMap, startBlock, newSelectionState, direction, startEntityKey, true, true);\n } else if (startEntityKey && endEntityKey) {\n var startSelectionState = getEntityRemovalRange(entityMap, startBlock, newSelectionState, direction, startEntityKey, false, true);\n var endSelectionState = getEntityRemovalRange(entityMap, endBlock, newSelectionState, direction, endEntityKey, false, false);\n newSelectionState = newSelectionState.merge({\n anchorOffset: startSelectionState.getAnchorOffset(),\n focusOffset: endSelectionState.getFocusOffset(),\n isBackward: false\n });\n } else if (startEntityKey) {\n var _startSelectionState = getEntityRemovalRange(entityMap, startBlock, newSelectionState, direction, startEntityKey, false, true);\n\n newSelectionState = newSelectionState.merge({\n anchorOffset: _startSelectionState.getStartOffset(),\n isBackward: false\n });\n } else if (endEntityKey) {\n var _endSelectionState = getEntityRemovalRange(entityMap, endBlock, newSelectionState, direction, endEntityKey, false, false);\n\n newSelectionState = newSelectionState.merge({\n focusOffset: _endSelectionState.getEndOffset(),\n isBackward: false\n });\n }\n\n return newSelectionState;\n}\n\nfunction getEntityRemovalRange(entityMap, block, selectionState, direction, entityKey, isEntireSelectionWithinEntity, isEntityAtStart) {\n var start = selectionState.getStartOffset();\n var end = selectionState.getEndOffset();\n\n var entity = entityMap.__get(entityKey);\n\n var mutability = entity.getMutability();\n var sideToConsider = isEntityAtStart ? start : end; // `MUTABLE` entities can just have the specified range of text removed\n // directly. No adjustments are needed.\n\n if (mutability === 'MUTABLE') {\n return selectionState;\n } // Find the entity range that overlaps with our removal range.\n\n\n var entityRanges = getRangesForDraftEntity(block, entityKey).filter(function (range) {\n return sideToConsider <= range.end && sideToConsider >= range.start;\n });\n !(entityRanges.length == 1) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'There should only be one entity range within this removal range.') : invariant(false) : void 0;\n var entityRange = entityRanges[0]; // For `IMMUTABLE` entity types, we will remove the entire entity range.\n\n if (mutability === 'IMMUTABLE') {\n return selectionState.merge({\n anchorOffset: entityRange.start,\n focusOffset: entityRange.end,\n isBackward: false\n });\n } // For `SEGMENTED` entity types, determine the appropriate segment to\n // remove.\n\n\n if (!isEntireSelectionWithinEntity) {\n if (isEntityAtStart) {\n end = entityRange.end;\n } else {\n start = entityRange.start;\n }\n }\n\n var removalRange = DraftEntitySegments.getRemovalRange(start, end, block.getText().slice(entityRange.start, entityRange.end), entityRange.start, direction);\n return selectionState.merge({\n anchorOffset: removalRange.start,\n focusOffset: removalRange.end,\n isBackward: false\n });\n}\n\nmodule.exports = getCharacterRemovalRange;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar isHTMLElement = require(\"./isHTMLElement\");\n\nfunction getContentEditableContainer(editor) {\n var editorNode = editor.editorContainer;\n !editorNode ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Missing editorNode') : invariant(false) : void 0;\n !isHTMLElement(editorNode.firstChild) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'editorNode.firstChild is not an HTMLElement') : invariant(false) : void 0;\n var htmlElement = editorNode.firstChild;\n return htmlElement;\n}\n\nmodule.exports = getContentEditableContainer;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar randomizeBlockMapKeys = require(\"./randomizeBlockMapKeys\");\n\nvar removeEntitiesAtEdges = require(\"./removeEntitiesAtEdges\");\n\nvar getContentStateFragment = function getContentStateFragment(contentState, selectionState) {\n var startKey = selectionState.getStartKey();\n var startOffset = selectionState.getStartOffset();\n var endKey = selectionState.getEndKey();\n var endOffset = selectionState.getEndOffset(); // Edge entities should be stripped to ensure that we don't preserve\n // invalid partial entities when the fragment is reused. We do, however,\n // preserve entities that are entirely within the selection range.\n\n var contentWithoutEdgeEntities = removeEntitiesAtEdges(contentState, selectionState);\n var blockMap = contentWithoutEdgeEntities.getBlockMap();\n var blockKeys = blockMap.keySeq();\n var startIndex = blockKeys.indexOf(startKey);\n var endIndex = blockKeys.indexOf(endKey) + 1;\n return randomizeBlockMapKeys(blockMap.slice(startIndex, endIndex).map(function (block, blockKey) {\n var text = block.getText();\n var chars = block.getCharacterList();\n\n if (startKey === endKey) {\n return block.merge({\n text: text.slice(startOffset, endOffset),\n characterList: chars.slice(startOffset, endOffset)\n });\n }\n\n if (blockKey === startKey) {\n return block.merge({\n text: text.slice(startOffset),\n characterList: chars.slice(startOffset)\n });\n }\n\n if (blockKey === endKey) {\n return block.merge({\n text: text.slice(0, endOffset),\n characterList: chars.slice(0, endOffset)\n });\n }\n\n return block;\n }));\n};\n\nmodule.exports = getContentStateFragment;","\"use strict\";\n\n/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\nfunction getCorrectDocumentFromNode(node) {\n if (!node || !node.ownerDocument) {\n return document;\n }\n\n return node.ownerDocument;\n}\n\nmodule.exports = getCorrectDocumentFromNode;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar KeyBindingUtil = require(\"./KeyBindingUtil\");\n\nvar Keys = require(\"fbjs/lib/Keys\");\n\nvar UserAgent = require(\"fbjs/lib/UserAgent\");\n\nvar isOSX = UserAgent.isPlatform('Mac OS X'); // Firefox on OSX had a bug resulting in navigation instead of cursor movement.\n// This bug was fixed in Firefox 29. Feature detection is virtually impossible\n// so we just check the version number. See #342765.\n\nvar shouldFixFirefoxMovement = isOSX && UserAgent.isBrowser('Firefox < 29');\nvar hasCommandModifier = KeyBindingUtil.hasCommandModifier,\n isCtrlKeyCommand = KeyBindingUtil.isCtrlKeyCommand;\n\nfunction shouldRemoveWord(e) {\n return isOSX && e.altKey || isCtrlKeyCommand(e);\n}\n/**\n * Get the appropriate undo/redo command for a Z key command.\n */\n\n\nfunction getZCommand(e) {\n if (!hasCommandModifier(e)) {\n return null;\n }\n\n return e.shiftKey ? 'redo' : 'undo';\n}\n\nfunction getDeleteCommand(e) {\n // Allow default \"cut\" behavior for PCs on Shift + Delete.\n if (!isOSX && e.shiftKey) {\n return null;\n }\n\n return shouldRemoveWord(e) ? 'delete-word' : 'delete';\n}\n\nfunction getBackspaceCommand(e) {\n if (hasCommandModifier(e) && isOSX) {\n return 'backspace-to-start-of-line';\n }\n\n return shouldRemoveWord(e) ? 'backspace-word' : 'backspace';\n}\n/**\n * Retrieve a bound key command for the given event.\n */\n\n\nfunction getDefaultKeyBinding(e) {\n switch (e.keyCode) {\n case 66:\n // B\n return hasCommandModifier(e) ? 'bold' : null;\n\n case 68:\n // D\n return isCtrlKeyCommand(e) ? 'delete' : null;\n\n case 72:\n // H\n return isCtrlKeyCommand(e) ? 'backspace' : null;\n\n case 73:\n // I\n return hasCommandModifier(e) ? 'italic' : null;\n\n case 74:\n // J\n return hasCommandModifier(e) ? 'code' : null;\n\n case 75:\n // K\n return isOSX && isCtrlKeyCommand(e) ? 'secondary-cut' : null;\n\n case 77:\n // M\n return isCtrlKeyCommand(e) ? 'split-block' : null;\n\n case 79:\n // O\n return isCtrlKeyCommand(e) ? 'split-block' : null;\n\n case 84:\n // T\n return isOSX && isCtrlKeyCommand(e) ? 'transpose-characters' : null;\n\n case 85:\n // U\n return hasCommandModifier(e) ? 'underline' : null;\n\n case 87:\n // W\n return isOSX && isCtrlKeyCommand(e) ? 'backspace-word' : null;\n\n case 89:\n // Y\n if (isCtrlKeyCommand(e)) {\n return isOSX ? 'secondary-paste' : 'redo';\n }\n\n return null;\n\n case 90:\n // Z\n return getZCommand(e) || null;\n\n case Keys.RETURN:\n return 'split-block';\n\n case Keys.DELETE:\n return getDeleteCommand(e);\n\n case Keys.BACKSPACE:\n return getBackspaceCommand(e);\n // LEFT/RIGHT handlers serve as a workaround for a Firefox bug.\n\n case Keys.LEFT:\n return shouldFixFirefoxMovement && hasCommandModifier(e) ? 'move-selection-to-start-of-block' : null;\n\n case Keys.RIGHT:\n return shouldFixFirefoxMovement && hasCommandModifier(e) ? 'move-selection-to-end-of-block' : null;\n\n default:\n return null;\n }\n}\n\nmodule.exports = getDefaultKeyBinding;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar getDraftEditorSelectionWithNodes = require(\"./getDraftEditorSelectionWithNodes\");\n/**\n * Convert the current selection range to an anchor/focus pair of offset keys\n * and values that can be interpreted by components.\n */\n\n\nfunction getDraftEditorSelection(editorState, root) {\n var selection = root.ownerDocument.defaultView.getSelection();\n var anchorNode = selection.anchorNode,\n anchorOffset = selection.anchorOffset,\n focusNode = selection.focusNode,\n focusOffset = selection.focusOffset,\n rangeCount = selection.rangeCount;\n\n if ( // No active selection.\n rangeCount === 0 || // No selection, ever. As in, the user hasn't selected anything since\n // opening the document.\n anchorNode == null || focusNode == null) {\n return {\n selectionState: editorState.getSelection().set('hasFocus', false),\n needsRecovery: false\n };\n }\n\n return getDraftEditorSelectionWithNodes(editorState, root, anchorNode, anchorOffset, focusNode, focusOffset);\n}\n\nmodule.exports = getDraftEditorSelection;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar findAncestorOffsetKey = require(\"./findAncestorOffsetKey\");\n\nvar getSelectionOffsetKeyForNode = require(\"./getSelectionOffsetKeyForNode\");\n\nvar getUpdatedSelectionState = require(\"./getUpdatedSelectionState\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar isElement = require(\"./isElement\");\n\nvar nullthrows = require(\"fbjs/lib/nullthrows\");\n\n/**\n * Convert the current selection range to an anchor/focus pair of offset keys\n * and values that can be interpreted by components.\n */\nfunction getDraftEditorSelectionWithNodes(editorState, root, anchorNode, anchorOffset, focusNode, focusOffset) {\n var anchorIsTextNode = anchorNode.nodeType === Node.TEXT_NODE;\n var focusIsTextNode = focusNode.nodeType === Node.TEXT_NODE; // If the selection range lies only on text nodes, the task is simple.\n // Find the nearest offset-aware elements and use the\n // offset values supplied by the selection range.\n\n if (anchorIsTextNode && focusIsTextNode) {\n return {\n selectionState: getUpdatedSelectionState(editorState, nullthrows(findAncestorOffsetKey(anchorNode)), anchorOffset, nullthrows(findAncestorOffsetKey(focusNode)), focusOffset),\n needsRecovery: false\n };\n }\n\n var anchorPoint = null;\n var focusPoint = null;\n var needsRecovery = true; // An element is selected. Convert this selection range into leaf offset\n // keys and offset values for consumption at the component level. This\n // is common in Firefox, where select-all and triple click behavior leads\n // to entire elements being selected.\n //\n // Note that we use the `needsRecovery` parameter in the callback here. This\n // is because when certain elements are selected, the behavior for subsequent\n // cursor movement (e.g. via arrow keys) is uncertain and may not match\n // expectations at the component level. For example, if an entire
is\n // selected and the user presses the right arrow, Firefox keeps the selection\n // on the
. If we allow subsequent keypresses to insert characters\n // natively, they will be inserted into a browser-created text node to the\n // right of that
. This is obviously undesirable.\n //\n // With the `needsRecovery` flag, we inform the caller that it is responsible\n // for manually setting the selection state on the rendered document to\n // ensure proper selection state maintenance.\n\n if (anchorIsTextNode) {\n anchorPoint = {\n key: nullthrows(findAncestorOffsetKey(anchorNode)),\n offset: anchorOffset\n };\n focusPoint = getPointForNonTextNode(root, focusNode, focusOffset);\n } else if (focusIsTextNode) {\n focusPoint = {\n key: nullthrows(findAncestorOffsetKey(focusNode)),\n offset: focusOffset\n };\n anchorPoint = getPointForNonTextNode(root, anchorNode, anchorOffset);\n } else {\n anchorPoint = getPointForNonTextNode(root, anchorNode, anchorOffset);\n focusPoint = getPointForNonTextNode(root, focusNode, focusOffset); // If the selection is collapsed on an empty block, don't force recovery.\n // This way, on arrow key selection changes, the browser can move the\n // cursor from a non-zero offset on one block, through empty blocks,\n // to a matching non-zero offset on other text blocks.\n\n if (anchorNode === focusNode && anchorOffset === focusOffset) {\n needsRecovery = !!anchorNode.firstChild && anchorNode.firstChild.nodeName !== 'BR';\n }\n }\n\n return {\n selectionState: getUpdatedSelectionState(editorState, anchorPoint.key, anchorPoint.offset, focusPoint.key, focusPoint.offset),\n needsRecovery: needsRecovery\n };\n}\n/**\n * Identify the first leaf descendant for the given node.\n */\n\n\nfunction getFirstLeaf(node) {\n while (node.firstChild && ( // data-blocks has no offset\n isElement(node.firstChild) && node.firstChild.getAttribute('data-blocks') === 'true' || getSelectionOffsetKeyForNode(node.firstChild))) {\n node = node.firstChild;\n }\n\n return node;\n}\n/**\n * Identify the last leaf descendant for the given node.\n */\n\n\nfunction getLastLeaf(node) {\n while (node.lastChild && ( // data-blocks has no offset\n isElement(node.lastChild) && node.lastChild.getAttribute('data-blocks') === 'true' || getSelectionOffsetKeyForNode(node.lastChild))) {\n node = node.lastChild;\n }\n\n return node;\n}\n\nfunction getPointForNonTextNode(editorRoot, startNode, childOffset) {\n var node = startNode;\n var offsetKey = findAncestorOffsetKey(node);\n !(offsetKey != null || editorRoot && (editorRoot === node || editorRoot.firstChild === node)) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Unknown node in selection range.') : invariant(false) : void 0; // If the editorRoot is the selection, step downward into the content\n // wrapper.\n\n if (editorRoot === node) {\n node = node.firstChild;\n !isElement(node) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Invalid DraftEditorContents node.') : invariant(false) : void 0;\n var castedNode = node; // assignment only added for flow :/\n // otherwise it throws in line 200 saying that node can be null or undefined\n\n node = castedNode;\n !(node.getAttribute('data-contents') === 'true') ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Invalid DraftEditorContents structure.') : invariant(false) : void 0;\n\n if (childOffset > 0) {\n childOffset = node.childNodes.length;\n }\n } // If the child offset is zero and we have an offset key, we're done.\n // If there's no offset key because the entire editor is selected,\n // find the leftmost (\"first\") leaf in the tree and use that as the offset\n // key.\n\n\n if (childOffset === 0) {\n var key = null;\n\n if (offsetKey != null) {\n key = offsetKey;\n } else {\n var firstLeaf = getFirstLeaf(node);\n key = nullthrows(getSelectionOffsetKeyForNode(firstLeaf));\n }\n\n return {\n key: key,\n offset: 0\n };\n }\n\n var nodeBeforeCursor = node.childNodes[childOffset - 1];\n var leafKey = null;\n var textLength = null;\n\n if (!getSelectionOffsetKeyForNode(nodeBeforeCursor)) {\n // Our target node may be a leaf or a text node, in which case we're\n // already where we want to be and can just use the child's length as\n // our offset.\n leafKey = nullthrows(offsetKey);\n textLength = getTextContentLength(nodeBeforeCursor);\n } else {\n // Otherwise, we'll look at the child to the left of the cursor and find\n // the last leaf node in its subtree.\n var lastLeaf = getLastLeaf(nodeBeforeCursor);\n leafKey = nullthrows(getSelectionOffsetKeyForNode(lastLeaf));\n textLength = getTextContentLength(lastLeaf);\n }\n\n return {\n key: leafKey,\n offset: textLength\n };\n}\n/**\n * Return the length of a node's textContent, regarding single newline\n * characters as zero-length. This allows us to avoid problems with identifying\n * the correct selection offset for empty blocks in IE, in which we\n * render newlines instead of break tags.\n */\n\n\nfunction getTextContentLength(node) {\n var textContent = node.textContent;\n return textContent === '\\n' ? 0 : textContent.length;\n}\n\nmodule.exports = getDraftEditorSelectionWithNodes;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar _require = require(\"./draftKeyUtils\"),\n notEmptyKey = _require.notEmptyKey;\n/**\n * Return the entity key that should be used when inserting text for the\n * specified target selection, only if the entity is `MUTABLE`. `IMMUTABLE`\n * and `SEGMENTED` entities should not be used for insertion behavior.\n */\n\n\nfunction getEntityKeyForSelection(contentState, targetSelection) {\n var entityKey;\n\n if (targetSelection.isCollapsed()) {\n var key = targetSelection.getAnchorKey();\n var offset = targetSelection.getAnchorOffset();\n\n if (offset > 0) {\n entityKey = contentState.getBlockForKey(key).getEntityAt(offset - 1);\n\n if (entityKey !== contentState.getBlockForKey(key).getEntityAt(offset)) {\n return null;\n }\n\n return filterKey(contentState.getEntityMap(), entityKey);\n }\n\n return null;\n }\n\n var startKey = targetSelection.getStartKey();\n var startOffset = targetSelection.getStartOffset();\n var startBlock = contentState.getBlockForKey(startKey);\n entityKey = startOffset === startBlock.getLength() ? null : startBlock.getEntityAt(startOffset);\n return filterKey(contentState.getEntityMap(), entityKey);\n}\n/**\n * Determine whether an entity key corresponds to a `MUTABLE` entity. If so,\n * return it. If not, return null.\n */\n\n\nfunction filterKey(entityMap, entityKey) {\n if (notEmptyKey(entityKey)) {\n var entity = entityMap.__get(entityKey);\n\n return entity.getMutability() === 'MUTABLE' ? entityKey : null;\n }\n\n return null;\n}\n\nmodule.exports = getEntityKeyForSelection;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar getContentStateFragment = require(\"./getContentStateFragment\");\n\nfunction getFragmentFromSelection(editorState) {\n var selectionState = editorState.getSelection();\n\n if (selectionState.isCollapsed()) {\n return null;\n }\n\n return getContentStateFragment(editorState.getCurrentContent(), selectionState);\n}\n\nmodule.exports = getFragmentFromSelection;","\"use strict\";\n\n/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n *\n * This is unstable and not part of the public API and should not be used by\n * production systems. This file may be update/removed without notice.\n */\nvar ContentBlockNode = require(\"./ContentBlockNode\");\n\nvar getNextDelimiterBlockKey = function getNextDelimiterBlockKey(block, blockMap) {\n var isExperimentalTreeBlock = block instanceof ContentBlockNode;\n\n if (!isExperimentalTreeBlock) {\n return null;\n }\n\n var nextSiblingKey = block.getNextSiblingKey();\n\n if (nextSiblingKey) {\n return nextSiblingKey;\n }\n\n var parent = block.getParentKey();\n\n if (!parent) {\n return null;\n }\n\n var nextNonDescendantBlock = blockMap.get(parent);\n\n while (nextNonDescendantBlock && !nextNonDescendantBlock.getNextSiblingKey()) {\n var parentKey = nextNonDescendantBlock.getParentKey();\n nextNonDescendantBlock = parentKey ? blockMap.get(parentKey) : null;\n }\n\n if (!nextNonDescendantBlock) {\n return null;\n }\n\n return nextNonDescendantBlock.getNextSiblingKey();\n};\n\nmodule.exports = getNextDelimiterBlockKey;","\"use strict\";\n\n/**\n * Copyright 2004-present Facebook. All Rights Reserved.\n *\n * \n * @typechecks\n * @format\n */\n\n/**\n * Retrieve an object's own values as an array. If you want the values in the\n * protoype chain, too, use getObjectValuesIncludingPrototype.\n *\n * If you are looking for a function that creates an Array instance based\n * on an \"Array-like\" object, use createArrayFrom instead.\n *\n * @param {object} obj An object.\n * @return {array} The object's values.\n */\nfunction getOwnObjectValues(obj) {\n return Object.keys(obj).map(function (key) {\n return obj[key];\n });\n}\n\nmodule.exports = getOwnObjectValues;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar getRangeClientRects = require(\"./getRangeClientRects\");\n\n/**\n * Like range.getBoundingClientRect() but normalizes for browser bugs.\n */\nfunction getRangeBoundingClientRect(range) {\n // \"Return a DOMRect object describing the smallest rectangle that includes\n // the first rectangle in list and all of the remaining rectangles of which\n // the height or width is not zero.\"\n // http://www.w3.org/TR/cssom-view/#dom-range-getboundingclientrect\n var rects = getRangeClientRects(range);\n var top = 0;\n var right = 0;\n var bottom = 0;\n var left = 0;\n\n if (rects.length) {\n // If the first rectangle has 0 width, we use the second, this is needed\n // because Chrome renders a 0 width rectangle when the selection contains\n // a line break.\n if (rects.length > 1 && rects[0].width === 0) {\n var _rects$ = rects[1];\n top = _rects$.top;\n right = _rects$.right;\n bottom = _rects$.bottom;\n left = _rects$.left;\n } else {\n var _rects$2 = rects[0];\n top = _rects$2.top;\n right = _rects$2.right;\n bottom = _rects$2.bottom;\n left = _rects$2.left;\n }\n\n for (var ii = 1; ii < rects.length; ii++) {\n var rect = rects[ii];\n\n if (rect.height !== 0 && rect.width !== 0) {\n top = Math.min(top, rect.top);\n right = Math.max(right, rect.right);\n bottom = Math.max(bottom, rect.bottom);\n left = Math.min(left, rect.left);\n }\n }\n }\n\n return {\n top: top,\n right: right,\n bottom: bottom,\n left: left,\n width: right - left,\n height: bottom - top\n };\n}\n\nmodule.exports = getRangeBoundingClientRect;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar UserAgent = require(\"fbjs/lib/UserAgent\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar isChrome = UserAgent.isBrowser('Chrome'); // In Chrome, the client rects will include the entire bounds of all nodes that\n// begin (have a start tag) within the selection, even if the selection does\n// not overlap the entire node. To resolve this, we split the range at each\n// start tag and join the client rects together.\n// https://code.google.com/p/chromium/issues/detail?id=324437\n\n/* eslint-disable consistent-return */\n\nfunction getRangeClientRectsChrome(range) {\n var tempRange = range.cloneRange();\n var clientRects = [];\n\n for (var ancestor = range.endContainer; ancestor != null; ancestor = ancestor.parentNode) {\n // If we've climbed up to the common ancestor, we can now use the\n // original start point and stop climbing the tree.\n var atCommonAncestor = ancestor === range.commonAncestorContainer;\n\n if (atCommonAncestor) {\n tempRange.setStart(range.startContainer, range.startOffset);\n } else {\n tempRange.setStart(tempRange.endContainer, 0);\n }\n\n var rects = Array.from(tempRange.getClientRects());\n clientRects.push(rects);\n\n if (atCommonAncestor) {\n var _ref;\n\n clientRects.reverse();\n return (_ref = []).concat.apply(_ref, clientRects);\n }\n\n tempRange.setEndBefore(ancestor);\n }\n\n !false ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Found an unexpected detached subtree when getting range client rects.') : invariant(false) : void 0;\n}\n/* eslint-enable consistent-return */\n\n/**\n * Like range.getClientRects() but normalizes for browser bugs.\n */\n\n\nvar getRangeClientRects = isChrome ? getRangeClientRectsChrome : function (range) {\n return Array.from(range.getClientRects());\n};\nmodule.exports = getRangeClientRects;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar invariant = require(\"fbjs/lib/invariant\");\n/**\n * Obtain the start and end positions of the range that has the\n * specified entity applied to it.\n *\n * Entity keys are applied only to contiguous stretches of text, so this\n * method searches for the first instance of the entity key and returns\n * the subsequent range.\n */\n\n\nfunction getRangesForDraftEntity(block, key) {\n var ranges = [];\n block.findEntityRanges(function (c) {\n return c.getEntity() === key;\n }, function (start, end) {\n ranges.push({\n start: start,\n end: end\n });\n });\n !!!ranges.length ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Entity key not found in this range.') : invariant(false) : void 0;\n return ranges;\n}\n\nmodule.exports = getRangesForDraftEntity;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar UserAgent = require(\"fbjs/lib/UserAgent\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar isOldIE = UserAgent.isBrowser('IE <= 9'); // Provides a dom node that will not execute scripts\n// https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation.createHTMLDocument\n// https://developer.mozilla.org/en-US/Add-ons/Code_snippets/HTML_to_DOM\n\nfunction getSafeBodyFromHTML(html) {\n var doc;\n var root = null; // Provides a safe context\n\n if (!isOldIE && document.implementation && document.implementation.createHTMLDocument) {\n doc = document.implementation.createHTMLDocument('foo');\n !doc.documentElement ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Missing doc.documentElement') : invariant(false) : void 0;\n doc.documentElement.innerHTML = html;\n root = doc.getElementsByTagName('body')[0];\n }\n\n return root;\n}\n\nmodule.exports = getSafeBodyFromHTML;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n/**\n * Get offset key from a node or it's child nodes. Return the first offset key\n * found on the DOM tree of given node.\n */\n\nvar isElement = require(\"./isElement\");\n\nfunction getSelectionOffsetKeyForNode(node) {\n if (isElement(node)) {\n var castedNode = node;\n var offsetKey = castedNode.getAttribute('data-offset-key');\n\n if (offsetKey) {\n return offsetKey;\n }\n\n for (var ii = 0; ii < castedNode.childNodes.length; ii++) {\n var childOffsetKey = getSelectionOffsetKeyForNode(castedNode.childNodes[ii]);\n\n if (childOffsetKey) {\n return childOffsetKey;\n }\n }\n }\n\n return null;\n}\n\nmodule.exports = getSelectionOffsetKeyForNode;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar TEXT_CLIPPING_REGEX = /\\.textClipping$/;\nvar TEXT_TYPES = {\n 'text/plain': true,\n 'text/html': true,\n 'text/rtf': true\n}; // Somewhat arbitrary upper bound on text size. Let's not lock up the browser.\n\nvar TEXT_SIZE_UPPER_BOUND = 5000;\n/**\n * Extract the text content from a file list.\n */\n\nfunction getTextContentFromFiles(files, callback) {\n var readCount = 0;\n var results = [];\n files.forEach(function (\n /*blob*/\n file) {\n readFile(file, function (\n /*string*/\n text) {\n readCount++;\n text && results.push(text.slice(0, TEXT_SIZE_UPPER_BOUND));\n\n if (readCount == files.length) {\n callback(results.join('\\r'));\n }\n });\n });\n}\n/**\n * todo isaac: Do work to turn html/rtf into a content fragment.\n */\n\n\nfunction readFile(file, callback) {\n if (!global.FileReader || file.type && !(file.type in TEXT_TYPES)) {\n callback('');\n return;\n }\n\n if (file.type === '') {\n var _contents = ''; // Special-case text clippings, which have an empty type but include\n // `.textClipping` in the file name. `readAsText` results in an empty\n // string for text clippings, so we force the file name to serve\n // as the text value for the file.\n\n if (TEXT_CLIPPING_REGEX.test(file.name)) {\n _contents = file.name.replace(TEXT_CLIPPING_REGEX, '');\n }\n\n callback(_contents);\n return;\n }\n\n var reader = new FileReader();\n\n reader.onload = function () {\n var result = reader.result;\n !(typeof result === 'string') ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'We should be calling \"FileReader.readAsText\" which returns a string') : invariant(false) : void 0;\n callback(result);\n };\n\n reader.onerror = function () {\n callback('');\n };\n\n reader.readAsText(file);\n}\n\nmodule.exports = getTextContentFromFiles;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar DraftOffsetKey = require(\"./DraftOffsetKey\");\n\nvar nullthrows = require(\"fbjs/lib/nullthrows\");\n\nfunction getUpdatedSelectionState(editorState, anchorKey, anchorOffset, focusKey, focusOffset) {\n var selection = nullthrows(editorState.getSelection());\n\n if (!anchorKey || !focusKey) {\n // If we cannot make sense of the updated selection state, stick to the current one.\n if (process.env.NODE_ENV !== \"production\") {\n /* eslint-disable-next-line */\n console.warn('Invalid selection state.', arguments, editorState.toJS());\n }\n\n return selection;\n }\n\n var anchorPath = DraftOffsetKey.decode(anchorKey);\n var anchorBlockKey = anchorPath.blockKey;\n var anchorLeafBlockTree = editorState.getBlockTree(anchorBlockKey);\n var anchorLeaf = anchorLeafBlockTree && anchorLeafBlockTree.getIn([anchorPath.decoratorKey, 'leaves', anchorPath.leafKey]);\n var focusPath = DraftOffsetKey.decode(focusKey);\n var focusBlockKey = focusPath.blockKey;\n var focusLeafBlockTree = editorState.getBlockTree(focusBlockKey);\n var focusLeaf = focusLeafBlockTree && focusLeafBlockTree.getIn([focusPath.decoratorKey, 'leaves', focusPath.leafKey]);\n\n if (!anchorLeaf || !focusLeaf) {\n // If we cannot make sense of the updated selection state, stick to the current one.\n if (process.env.NODE_ENV !== \"production\") {\n /* eslint-disable-next-line */\n console.warn('Invalid selection state.', arguments, editorState.toJS());\n }\n\n return selection;\n }\n\n var anchorLeafStart = anchorLeaf.get('start');\n var focusLeafStart = focusLeaf.get('start');\n var anchorBlockOffset = anchorLeaf ? anchorLeafStart + anchorOffset : null;\n var focusBlockOffset = focusLeaf ? focusLeafStart + focusOffset : null;\n var areEqual = selection.getAnchorKey() === anchorBlockKey && selection.getAnchorOffset() === anchorBlockOffset && selection.getFocusKey() === focusBlockKey && selection.getFocusOffset() === focusBlockOffset;\n\n if (areEqual) {\n return selection;\n }\n\n var isBackward = false;\n\n if (anchorBlockKey === focusBlockKey) {\n var anchorLeafEnd = anchorLeaf.get('end');\n var focusLeafEnd = focusLeaf.get('end');\n\n if (focusLeafStart === anchorLeafStart && focusLeafEnd === anchorLeafEnd) {\n isBackward = focusOffset < anchorOffset;\n } else {\n isBackward = focusLeafStart < anchorLeafStart;\n }\n } else {\n var startKey = editorState.getCurrentContent().getBlockMap().keySeq().skipUntil(function (v) {\n return v === anchorBlockKey || v === focusBlockKey;\n }).first();\n isBackward = startKey === focusBlockKey;\n }\n\n return selection.merge({\n anchorKey: anchorBlockKey,\n anchorOffset: anchorBlockOffset,\n focusKey: focusBlockKey,\n focusOffset: focusBlockOffset,\n isBackward: isBackward\n });\n}\n\nmodule.exports = getUpdatedSelectionState;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar getRangeBoundingClientRect = require(\"./getRangeBoundingClientRect\");\n/**\n * Return the bounding ClientRect for the visible DOM selection, if any.\n * In cases where there are no selected ranges or the bounding rect is\n * temporarily invalid, return null.\n *\n * When using from an iframe, you should pass the iframe window object\n */\n\n\nfunction getVisibleSelectionRect(global) {\n var selection = global.getSelection();\n\n if (!selection.rangeCount) {\n return null;\n }\n\n var range = selection.getRangeAt(0);\n var boundingRect = getRangeBoundingClientRect(range);\n var top = boundingRect.top,\n right = boundingRect.right,\n bottom = boundingRect.bottom,\n left = boundingRect.left; // When a re-render leads to a node being removed, the DOM selection will\n // temporarily be placed on an ancestor node, which leads to an invalid\n // bounding rect. Discard this state.\n\n if (top === 0 && right === 0 && bottom === 0 && left === 0) {\n return null;\n }\n\n return boundingRect;\n}\n\nmodule.exports = getVisibleSelectionRect;","\"use strict\";\n\n/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\nfunction getWindowForNode(node) {\n if (!node || !node.ownerDocument || !node.ownerDocument.defaultView) {\n return window;\n }\n\n return node.ownerDocument.defaultView;\n}\n\nmodule.exports = getWindowForNode;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n */\n'use strict';\n\nmodule.exports = function (name) {\n if (typeof window !== 'undefined' && window.__DRAFT_GKX) {\n return !!window.__DRAFT_GKX[name];\n }\n\n return false;\n};","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar BlockMapBuilder = require(\"./BlockMapBuilder\");\n\nvar ContentBlockNode = require(\"./ContentBlockNode\");\n\nvar Immutable = require(\"immutable\");\n\nvar insertIntoList = require(\"./insertIntoList\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar randomizeBlockMapKeys = require(\"./randomizeBlockMapKeys\");\n\nvar List = Immutable.List;\n\nvar updateExistingBlock = function updateExistingBlock(contentState, selectionState, blockMap, fragmentBlock, targetKey, targetOffset) {\n var mergeBlockData = arguments.length > 6 && arguments[6] !== undefined ? arguments[6] : 'REPLACE_WITH_NEW_DATA';\n var targetBlock = blockMap.get(targetKey);\n var text = targetBlock.getText();\n var chars = targetBlock.getCharacterList();\n var finalKey = targetKey;\n var finalOffset = targetOffset + fragmentBlock.getText().length;\n var data = null;\n\n switch (mergeBlockData) {\n case 'MERGE_OLD_DATA_TO_NEW_DATA':\n data = fragmentBlock.getData().merge(targetBlock.getData());\n break;\n\n case 'REPLACE_WITH_NEW_DATA':\n data = fragmentBlock.getData();\n break;\n }\n\n var type = targetBlock.getType();\n\n if (text && type === 'unstyled') {\n type = fragmentBlock.getType();\n }\n\n var newBlock = targetBlock.merge({\n text: text.slice(0, targetOffset) + fragmentBlock.getText() + text.slice(targetOffset),\n characterList: insertIntoList(chars, fragmentBlock.getCharacterList(), targetOffset),\n type: type,\n data: data\n });\n return contentState.merge({\n blockMap: blockMap.set(targetKey, newBlock),\n selectionBefore: selectionState,\n selectionAfter: selectionState.merge({\n anchorKey: finalKey,\n anchorOffset: finalOffset,\n focusKey: finalKey,\n focusOffset: finalOffset,\n isBackward: false\n })\n });\n};\n/**\n * Appends text/characterList from the fragment first block to\n * target block.\n */\n\n\nvar updateHead = function updateHead(block, targetOffset, fragment) {\n var text = block.getText();\n var chars = block.getCharacterList(); // Modify head portion of block.\n\n var headText = text.slice(0, targetOffset);\n var headCharacters = chars.slice(0, targetOffset);\n var appendToHead = fragment.first();\n return block.merge({\n text: headText + appendToHead.getText(),\n characterList: headCharacters.concat(appendToHead.getCharacterList()),\n type: headText ? block.getType() : appendToHead.getType(),\n data: appendToHead.getData()\n });\n};\n/**\n * Appends offset text/characterList from the target block to the last\n * fragment block.\n */\n\n\nvar updateTail = function updateTail(block, targetOffset, fragment) {\n // Modify tail portion of block.\n var text = block.getText();\n var chars = block.getCharacterList(); // Modify head portion of block.\n\n var blockSize = text.length;\n var tailText = text.slice(targetOffset, blockSize);\n var tailCharacters = chars.slice(targetOffset, blockSize);\n var prependToTail = fragment.last();\n return prependToTail.merge({\n text: prependToTail.getText() + tailText,\n characterList: prependToTail.getCharacterList().concat(tailCharacters),\n data: prependToTail.getData()\n });\n};\n\nvar getRootBlocks = function getRootBlocks(block, blockMap) {\n var headKey = block.getKey();\n var rootBlock = block;\n var rootBlocks = []; // sometimes the fragment head block will not be part of the blockMap itself this can happen when\n // the fragment head is used to update the target block, however when this does not happen we need\n // to make sure that we include it on the rootBlocks since the first block of a fragment is always a\n // fragment root block\n\n if (blockMap.get(headKey)) {\n rootBlocks.push(headKey);\n }\n\n while (rootBlock && rootBlock.getNextSiblingKey()) {\n var lastSiblingKey = rootBlock.getNextSiblingKey();\n\n if (!lastSiblingKey) {\n break;\n }\n\n rootBlocks.push(lastSiblingKey);\n rootBlock = blockMap.get(lastSiblingKey);\n }\n\n return rootBlocks;\n};\n\nvar updateBlockMapLinks = function updateBlockMapLinks(blockMap, originalBlockMap, targetBlock, fragmentHeadBlock) {\n return blockMap.withMutations(function (blockMapState) {\n var targetKey = targetBlock.getKey();\n var headKey = fragmentHeadBlock.getKey();\n var targetNextKey = targetBlock.getNextSiblingKey();\n var targetParentKey = targetBlock.getParentKey();\n var fragmentRootBlocks = getRootBlocks(fragmentHeadBlock, blockMap);\n var lastRootFragmentBlockKey = fragmentRootBlocks[fragmentRootBlocks.length - 1];\n\n if (blockMapState.get(headKey)) {\n // update the fragment head when it is part of the blockMap otherwise\n blockMapState.setIn([targetKey, 'nextSibling'], headKey);\n blockMapState.setIn([headKey, 'prevSibling'], targetKey);\n } else {\n // update the target block that had the fragment head contents merged into it\n blockMapState.setIn([targetKey, 'nextSibling'], fragmentHeadBlock.getNextSiblingKey());\n blockMapState.setIn([fragmentHeadBlock.getNextSiblingKey(), 'prevSibling'], targetKey);\n } // update the last root block fragment\n\n\n blockMapState.setIn([lastRootFragmentBlockKey, 'nextSibling'], targetNextKey); // update the original target next block\n\n if (targetNextKey) {\n blockMapState.setIn([targetNextKey, 'prevSibling'], lastRootFragmentBlockKey);\n } // update fragment parent links\n\n\n fragmentRootBlocks.forEach(function (blockKey) {\n return blockMapState.setIn([blockKey, 'parent'], targetParentKey);\n }); // update targetBlock parent child links\n\n if (targetParentKey) {\n var targetParent = blockMap.get(targetParentKey);\n var originalTargetParentChildKeys = targetParent.getChildKeys();\n var targetBlockIndex = originalTargetParentChildKeys.indexOf(targetKey);\n var insertionIndex = targetBlockIndex + 1;\n var newChildrenKeysArray = originalTargetParentChildKeys.toArray(); // insert fragment children\n\n newChildrenKeysArray.splice.apply(newChildrenKeysArray, [insertionIndex, 0].concat(fragmentRootBlocks));\n blockMapState.setIn([targetParentKey, 'children'], List(newChildrenKeysArray));\n }\n });\n};\n\nvar insertFragment = function insertFragment(contentState, selectionState, blockMap, fragment, targetKey, targetOffset) {\n var isTreeBasedBlockMap = blockMap.first() instanceof ContentBlockNode;\n var newBlockArr = [];\n var fragmentSize = fragment.size;\n var target = blockMap.get(targetKey);\n var head = fragment.first();\n var tail = fragment.last();\n var finalOffset = tail.getLength();\n var finalKey = tail.getKey();\n var shouldNotUpdateFromFragmentBlock = isTreeBasedBlockMap && (!target.getChildKeys().isEmpty() || !head.getChildKeys().isEmpty());\n blockMap.forEach(function (block, blockKey) {\n if (blockKey !== targetKey) {\n newBlockArr.push(block);\n return;\n }\n\n if (shouldNotUpdateFromFragmentBlock) {\n newBlockArr.push(block);\n } else {\n newBlockArr.push(updateHead(block, targetOffset, fragment));\n } // Insert fragment blocks after the head and before the tail.\n\n\n fragment // when we are updating the target block with the head fragment block we skip the first fragment\n // head since its contents have already been merged with the target block otherwise we include\n // the whole fragment\n .slice(shouldNotUpdateFromFragmentBlock ? 0 : 1, fragmentSize - 1).forEach(function (fragmentBlock) {\n return newBlockArr.push(fragmentBlock);\n }); // update tail\n\n newBlockArr.push(updateTail(block, targetOffset, fragment));\n });\n var updatedBlockMap = BlockMapBuilder.createFromArray(newBlockArr);\n\n if (isTreeBasedBlockMap) {\n updatedBlockMap = updateBlockMapLinks(updatedBlockMap, blockMap, target, head);\n }\n\n return contentState.merge({\n blockMap: updatedBlockMap,\n selectionBefore: selectionState,\n selectionAfter: selectionState.merge({\n anchorKey: finalKey,\n anchorOffset: finalOffset,\n focusKey: finalKey,\n focusOffset: finalOffset,\n isBackward: false\n })\n });\n};\n\nvar insertFragmentIntoContentState = function insertFragmentIntoContentState(contentState, selectionState, fragmentBlockMap) {\n var mergeBlockData = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 'REPLACE_WITH_NEW_DATA';\n !selectionState.isCollapsed() ? process.env.NODE_ENV !== \"production\" ? invariant(false, '`insertFragment` should only be called with a collapsed selection state.') : invariant(false) : void 0;\n var blockMap = contentState.getBlockMap();\n var fragment = randomizeBlockMapKeys(fragmentBlockMap);\n var targetKey = selectionState.getStartKey();\n var targetOffset = selectionState.getStartOffset();\n var targetBlock = blockMap.get(targetKey);\n\n if (targetBlock instanceof ContentBlockNode) {\n !targetBlock.getChildKeys().isEmpty() ? process.env.NODE_ENV !== \"production\" ? invariant(false, '`insertFragment` should not be called when a container node is selected.') : invariant(false) : void 0;\n } // When we insert a fragment with a single block we simply update the target block\n // with the contents of the inserted fragment block\n\n\n if (fragment.size === 1) {\n return updateExistingBlock(contentState, selectionState, blockMap, fragment.first(), targetKey, targetOffset, mergeBlockData);\n }\n\n return insertFragment(contentState, selectionState, blockMap, fragment, targetKey, targetOffset);\n};\n\nmodule.exports = insertFragmentIntoContentState;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\n/**\n * Maintain persistence for target list when appending and prepending.\n */\nfunction insertIntoList(targetListArg, toInsert, offset) {\n var targetList = targetListArg;\n\n if (offset === targetList.count()) {\n toInsert.forEach(function (c) {\n targetList = targetList.push(c);\n });\n } else if (offset === 0) {\n toInsert.reverse().forEach(function (c) {\n targetList = targetList.unshift(c);\n });\n } else {\n var head = targetList.slice(0, offset);\n var tail = targetList.slice(offset);\n targetList = head.concat(toInsert, tail).toList();\n }\n\n return targetList;\n}\n\nmodule.exports = insertIntoList;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar Immutable = require(\"immutable\");\n\nvar insertIntoList = require(\"./insertIntoList\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar Repeat = Immutable.Repeat;\n\nfunction insertTextIntoContentState(contentState, selectionState, text, characterMetadata) {\n !selectionState.isCollapsed() ? process.env.NODE_ENV !== \"production\" ? invariant(false, '`insertText` should only be called with a collapsed range.') : invariant(false) : void 0;\n var len = null;\n\n if (text != null) {\n len = text.length;\n }\n\n if (len == null || len === 0) {\n return contentState;\n }\n\n var blockMap = contentState.getBlockMap();\n var key = selectionState.getStartKey();\n var offset = selectionState.getStartOffset();\n var block = blockMap.get(key);\n var blockText = block.getText();\n var newBlock = block.merge({\n text: blockText.slice(0, offset) + text + blockText.slice(offset, block.getLength()),\n characterList: insertIntoList(block.getCharacterList(), Repeat(characterMetadata, len).toList(), offset)\n });\n var newOffset = offset + len;\n return contentState.merge({\n blockMap: blockMap.set(key, newBlock),\n selectionAfter: selectionState.merge({\n anchorOffset: newOffset,\n focusOffset: newOffset\n })\n });\n}\n\nmodule.exports = insertTextIntoContentState;","\"use strict\";\n\n/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\nfunction isElement(node) {\n if (!node || !node.ownerDocument) {\n return false;\n }\n\n return node.nodeType === Node.ELEMENT_NODE;\n}\n\nmodule.exports = isElement;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\n/**\n * Utility method for determining whether or not the value returned\n * from a handler indicates that it was handled.\n */\nfunction isEventHandled(value) {\n return value === 'handled' || value === true;\n}\n\nmodule.exports = isEventHandled;","\"use strict\";\n\n/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\nvar isElement = require(\"./isElement\");\n\nfunction isHTMLAnchorElement(node) {\n if (!node || !node.ownerDocument) {\n return false;\n }\n\n return isElement(node) && node.nodeName === 'A';\n}\n\nmodule.exports = isHTMLAnchorElement;","\"use strict\";\n\n/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\nvar isElement = require(\"./isElement\");\n\nfunction isHTMLBRElement(node) {\n if (!node || !node.ownerDocument) {\n return false;\n }\n\n return isElement(node) && node.nodeName === 'BR';\n}\n\nmodule.exports = isHTMLBRElement;","\"use strict\";\n\n/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\nfunction isHTMLElement(node) {\n if (!node || !node.ownerDocument) {\n return false;\n }\n\n if (!node.ownerDocument.defaultView) {\n return node instanceof HTMLElement;\n }\n\n if (node instanceof node.ownerDocument.defaultView.HTMLElement) {\n return true;\n }\n\n return false;\n}\n\nmodule.exports = isHTMLElement;","\"use strict\";\n\n/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\nvar isElement = require(\"./isElement\");\n\nfunction isHTMLImageElement(node) {\n if (!node || !node.ownerDocument) {\n return false;\n }\n\n return isElement(node) && node.nodeName === 'IMG';\n}\n\nmodule.exports = isHTMLImageElement;","\"use strict\";\n\n/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\nfunction isInstanceOfNode(target) {\n // we changed the name because of having duplicate module provider (fbjs)\n if (!target || !('ownerDocument' in target)) {\n return false;\n }\n\n if ('ownerDocument' in target) {\n var node = target;\n\n if (!node.ownerDocument.defaultView) {\n return node instanceof Node;\n }\n\n if (node instanceof node.ownerDocument.defaultView.Node) {\n return true;\n }\n }\n\n return false;\n}\n\nmodule.exports = isInstanceOfNode;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nfunction isSelectionAtLeafStart(editorState) {\n var selection = editorState.getSelection();\n var anchorKey = selection.getAnchorKey();\n var blockTree = editorState.getBlockTree(anchorKey);\n var offset = selection.getStartOffset();\n var isAtStart = false;\n blockTree.some(function (leafSet) {\n if (offset === leafSet.get('start')) {\n isAtStart = true;\n return true;\n }\n\n if (offset < leafSet.get('end')) {\n return leafSet.get('leaves').some(function (leaf) {\n var leafStart = leaf.get('start');\n\n if (offset === leafStart) {\n isAtStart = true;\n return true;\n }\n\n return false;\n });\n }\n\n return false;\n });\n return isAtStart;\n}\n\nmodule.exports = isSelectionAtLeafStart;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar Keys = require(\"fbjs/lib/Keys\");\n\nfunction isSoftNewlineEvent(e) {\n return e.which === Keys.RETURN && (e.getModifierState('Shift') || e.getModifierState('Alt') || e.getModifierState('Control'));\n}\n\nmodule.exports = isSoftNewlineEvent;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar EditorState = require(\"./EditorState\");\n\nvar expandRangeToStartOfLine = require(\"./expandRangeToStartOfLine\");\n\nvar getDraftEditorSelectionWithNodes = require(\"./getDraftEditorSelectionWithNodes\");\n\nvar moveSelectionBackward = require(\"./moveSelectionBackward\");\n\nvar removeTextWithStrategy = require(\"./removeTextWithStrategy\");\n\nfunction keyCommandBackspaceToStartOfLine(editorState, e) {\n var afterRemoval = removeTextWithStrategy(editorState, function (strategyState) {\n var selection = strategyState.getSelection();\n\n if (selection.isCollapsed() && selection.getAnchorOffset() === 0) {\n return moveSelectionBackward(strategyState, 1);\n }\n\n var ownerDocument = e.currentTarget.ownerDocument;\n var domSelection = ownerDocument.defaultView.getSelection(); // getRangeAt can technically throw if there's no selection, but we know\n // there is one here because text editor has focus (the cursor is a\n // selection of length 0). Therefore, we don't need to wrap this in a\n // try-catch block.\n\n var range = domSelection.getRangeAt(0);\n range = expandRangeToStartOfLine(range);\n return getDraftEditorSelectionWithNodes(strategyState, null, range.endContainer, range.endOffset, range.startContainer, range.startOffset).selectionState;\n }, 'backward');\n\n if (afterRemoval === editorState.getCurrentContent()) {\n return editorState;\n }\n\n return EditorState.push(editorState, afterRemoval, 'remove-range');\n}\n\nmodule.exports = keyCommandBackspaceToStartOfLine;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar DraftRemovableWord = require(\"./DraftRemovableWord\");\n\nvar EditorState = require(\"./EditorState\");\n\nvar moveSelectionBackward = require(\"./moveSelectionBackward\");\n\nvar removeTextWithStrategy = require(\"./removeTextWithStrategy\");\n/**\n * Delete the word that is left of the cursor, as well as any spaces or\n * punctuation after the word.\n */\n\n\nfunction keyCommandBackspaceWord(editorState) {\n var afterRemoval = removeTextWithStrategy(editorState, function (strategyState) {\n var selection = strategyState.getSelection();\n var offset = selection.getStartOffset(); // If there are no words before the cursor, remove the preceding newline.\n\n if (offset === 0) {\n return moveSelectionBackward(strategyState, 1);\n }\n\n var key = selection.getStartKey();\n var content = strategyState.getCurrentContent();\n var text = content.getBlockForKey(key).getText().slice(0, offset);\n var toRemove = DraftRemovableWord.getBackward(text);\n return moveSelectionBackward(strategyState, toRemove.length || 1);\n }, 'backward');\n\n if (afterRemoval === editorState.getCurrentContent()) {\n return editorState;\n }\n\n return EditorState.push(editorState, afterRemoval, 'remove-range');\n}\n\nmodule.exports = keyCommandBackspaceWord;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar DraftRemovableWord = require(\"./DraftRemovableWord\");\n\nvar EditorState = require(\"./EditorState\");\n\nvar moveSelectionForward = require(\"./moveSelectionForward\");\n\nvar removeTextWithStrategy = require(\"./removeTextWithStrategy\");\n/**\n * Delete the word that is right of the cursor, as well as any spaces or\n * punctuation before the word.\n */\n\n\nfunction keyCommandDeleteWord(editorState) {\n var afterRemoval = removeTextWithStrategy(editorState, function (strategyState) {\n var selection = strategyState.getSelection();\n var offset = selection.getStartOffset();\n var key = selection.getStartKey();\n var content = strategyState.getCurrentContent();\n var text = content.getBlockForKey(key).getText().slice(offset);\n var toRemove = DraftRemovableWord.getForward(text); // If there are no words in front of the cursor, remove the newline.\n\n return moveSelectionForward(strategyState, toRemove.length || 1);\n }, 'forward');\n\n if (afterRemoval === editorState.getCurrentContent()) {\n return editorState;\n }\n\n return EditorState.push(editorState, afterRemoval, 'remove-range');\n}\n\nmodule.exports = keyCommandDeleteWord;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar DraftModifier = require(\"./DraftModifier\");\n\nvar EditorState = require(\"./EditorState\");\n\nfunction keyCommandInsertNewline(editorState) {\n var contentState = DraftModifier.splitBlock(editorState.getCurrentContent(), editorState.getSelection());\n return EditorState.push(editorState, contentState, 'split-block');\n}\n\nmodule.exports = keyCommandInsertNewline;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar EditorState = require(\"./EditorState\");\n/**\n * See comment for `moveSelectionToStartOfBlock`.\n */\n\n\nfunction keyCommandMoveSelectionToEndOfBlock(editorState) {\n var selection = editorState.getSelection();\n var endKey = selection.getEndKey();\n var content = editorState.getCurrentContent();\n var textLength = content.getBlockForKey(endKey).getLength();\n return EditorState.set(editorState, {\n selection: selection.merge({\n anchorKey: endKey,\n anchorOffset: textLength,\n focusKey: endKey,\n focusOffset: textLength,\n isBackward: false\n }),\n forceSelection: true\n });\n}\n\nmodule.exports = keyCommandMoveSelectionToEndOfBlock;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar EditorState = require(\"./EditorState\");\n/**\n * Collapse selection at the start of the first selected block. This is used\n * for Firefox versions that attempt to navigate forward/backward instead of\n * moving the cursor. Other browsers are able to move the cursor natively.\n */\n\n\nfunction keyCommandMoveSelectionToStartOfBlock(editorState) {\n var selection = editorState.getSelection();\n var startKey = selection.getStartKey();\n return EditorState.set(editorState, {\n selection: selection.merge({\n anchorKey: startKey,\n anchorOffset: 0,\n focusKey: startKey,\n focusOffset: 0,\n isBackward: false\n }),\n forceSelection: true\n });\n}\n\nmodule.exports = keyCommandMoveSelectionToStartOfBlock;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar EditorState = require(\"./EditorState\");\n\nvar UnicodeUtils = require(\"fbjs/lib/UnicodeUtils\");\n\nvar moveSelectionBackward = require(\"./moveSelectionBackward\");\n\nvar removeTextWithStrategy = require(\"./removeTextWithStrategy\");\n/**\n * Remove the selected range. If the cursor is collapsed, remove the preceding\n * character. This operation is Unicode-aware, so removing a single character\n * will remove a surrogate pair properly as well.\n */\n\n\nfunction keyCommandPlainBackspace(editorState) {\n var afterRemoval = removeTextWithStrategy(editorState, function (strategyState) {\n var selection = strategyState.getSelection();\n var content = strategyState.getCurrentContent();\n var key = selection.getAnchorKey();\n var offset = selection.getAnchorOffset();\n var charBehind = content.getBlockForKey(key).getText()[offset - 1];\n return moveSelectionBackward(strategyState, charBehind ? UnicodeUtils.getUTF16Length(charBehind, 0) : 1);\n }, 'backward');\n\n if (afterRemoval === editorState.getCurrentContent()) {\n return editorState;\n }\n\n var selection = editorState.getSelection();\n return EditorState.push(editorState, afterRemoval.set('selectionBefore', selection), selection.isCollapsed() ? 'backspace-character' : 'remove-range');\n}\n\nmodule.exports = keyCommandPlainBackspace;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar EditorState = require(\"./EditorState\");\n\nvar UnicodeUtils = require(\"fbjs/lib/UnicodeUtils\");\n\nvar moveSelectionForward = require(\"./moveSelectionForward\");\n\nvar removeTextWithStrategy = require(\"./removeTextWithStrategy\");\n/**\n * Remove the selected range. If the cursor is collapsed, remove the following\n * character. This operation is Unicode-aware, so removing a single character\n * will remove a surrogate pair properly as well.\n */\n\n\nfunction keyCommandPlainDelete(editorState) {\n var afterRemoval = removeTextWithStrategy(editorState, function (strategyState) {\n var selection = strategyState.getSelection();\n var content = strategyState.getCurrentContent();\n var key = selection.getAnchorKey();\n var offset = selection.getAnchorOffset();\n var charAhead = content.getBlockForKey(key).getText()[offset];\n return moveSelectionForward(strategyState, charAhead ? UnicodeUtils.getUTF16Length(charAhead, 0) : 1);\n }, 'forward');\n\n if (afterRemoval === editorState.getCurrentContent()) {\n return editorState;\n }\n\n var selection = editorState.getSelection();\n return EditorState.push(editorState, afterRemoval.set('selectionBefore', selection), selection.isCollapsed() ? 'delete-character' : 'remove-range');\n}\n\nmodule.exports = keyCommandPlainDelete;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar DraftModifier = require(\"./DraftModifier\");\n\nvar EditorState = require(\"./EditorState\");\n\nvar getContentStateFragment = require(\"./getContentStateFragment\");\n/**\n * Transpose the characters on either side of a collapsed cursor, or\n * if the cursor is at the end of the block, transpose the last two\n * characters.\n */\n\n\nfunction keyCommandTransposeCharacters(editorState) {\n var selection = editorState.getSelection();\n\n if (!selection.isCollapsed()) {\n return editorState;\n }\n\n var offset = selection.getAnchorOffset();\n\n if (offset === 0) {\n return editorState;\n }\n\n var blockKey = selection.getAnchorKey();\n var content = editorState.getCurrentContent();\n var block = content.getBlockForKey(blockKey);\n var length = block.getLength(); // Nothing to transpose if there aren't two characters.\n\n if (length <= 1) {\n return editorState;\n }\n\n var removalRange;\n var finalSelection;\n\n if (offset === length) {\n // The cursor is at the end of the block. Swap the last two characters.\n removalRange = selection.set('anchorOffset', offset - 1);\n finalSelection = selection;\n } else {\n removalRange = selection.set('focusOffset', offset + 1);\n finalSelection = removalRange.set('anchorOffset', offset + 1);\n } // Extract the character to move as a fragment. This preserves its\n // styling and entity, if any.\n\n\n var movedFragment = getContentStateFragment(content, removalRange);\n var afterRemoval = DraftModifier.removeRange(content, removalRange, 'backward'); // After the removal, the insertion target is one character back.\n\n var selectionAfter = afterRemoval.getSelectionAfter();\n var targetOffset = selectionAfter.getAnchorOffset() - 1;\n var targetRange = selectionAfter.merge({\n anchorOffset: targetOffset,\n focusOffset: targetOffset\n });\n var afterInsert = DraftModifier.replaceWithFragment(afterRemoval, targetRange, movedFragment);\n var newEditorState = EditorState.push(editorState, afterInsert, 'insert-fragment');\n return EditorState.acceptSelection(newEditorState, finalSelection);\n}\n\nmodule.exports = keyCommandTransposeCharacters;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar EditorState = require(\"./EditorState\");\n\nfunction keyCommandUndo(e, editorState, updateFn) {\n var undoneState = EditorState.undo(editorState); // If the last change to occur was a spellcheck change, allow the undo\n // event to fall through to the browser. This allows the browser to record\n // the unwanted change, which should soon lead it to learn not to suggest\n // the correction again.\n\n if (editorState.getLastChangeType() === 'spellcheck-change') {\n var nativelyRenderedContent = undoneState.getCurrentContent();\n updateFn(EditorState.set(undoneState, {\n nativelyRenderedContent: nativelyRenderedContent\n }));\n return;\n } // Otheriwse, manage the undo behavior manually.\n\n\n e.preventDefault();\n\n if (!editorState.getNativelyRenderedContent()) {\n updateFn(undoneState);\n return;\n } // Trigger a re-render with the current content state to ensure that the\n // component tree has up-to-date props for comparison.\n\n\n updateFn(EditorState.set(editorState, {\n nativelyRenderedContent: null\n })); // Wait to ensure that the re-render has occurred before performing\n // the undo action.\n\n setTimeout(function () {\n updateFn(undoneState);\n }, 0);\n}\n\nmodule.exports = keyCommandUndo;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar Immutable = require(\"immutable\");\n\nvar Map = Immutable.Map;\n\nfunction modifyBlockForContentState(contentState, selectionState, operation) {\n var startKey = selectionState.getStartKey();\n var endKey = selectionState.getEndKey();\n var blockMap = contentState.getBlockMap();\n var newBlocks = blockMap.toSeq().skipUntil(function (_, k) {\n return k === startKey;\n }).takeUntil(function (_, k) {\n return k === endKey;\n }).concat(Map([[endKey, blockMap.get(endKey)]])).map(operation);\n return contentState.merge({\n blockMap: blockMap.merge(newBlocks),\n selectionBefore: selectionState,\n selectionAfter: selectionState\n });\n}\n\nmodule.exports = modifyBlockForContentState;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar ContentBlockNode = require(\"./ContentBlockNode\");\n\nvar getNextDelimiterBlockKey = require(\"./getNextDelimiterBlockKey\");\n\nvar Immutable = require(\"immutable\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar OrderedMap = Immutable.OrderedMap,\n List = Immutable.List;\n\nvar transformBlock = function transformBlock(key, blockMap, func) {\n if (!key) {\n return;\n }\n\n var block = blockMap.get(key);\n\n if (!block) {\n return;\n }\n\n blockMap.set(key, func(block));\n};\n\nvar updateBlockMapLinks = function updateBlockMapLinks(blockMap, originalBlockToBeMoved, originalTargetBlock, insertionMode, isExperimentalTreeBlock) {\n if (!isExperimentalTreeBlock) {\n return blockMap;\n } // possible values of 'insertionMode' are: 'after', 'before'\n\n\n var isInsertedAfterTarget = insertionMode === 'after';\n var originalBlockKey = originalBlockToBeMoved.getKey();\n var originalTargetKey = originalTargetBlock.getKey();\n var originalParentKey = originalBlockToBeMoved.getParentKey();\n var originalNextSiblingKey = originalBlockToBeMoved.getNextSiblingKey();\n var originalPrevSiblingKey = originalBlockToBeMoved.getPrevSiblingKey();\n var newParentKey = originalTargetBlock.getParentKey();\n var newNextSiblingKey = isInsertedAfterTarget ? originalTargetBlock.getNextSiblingKey() : originalTargetKey;\n var newPrevSiblingKey = isInsertedAfterTarget ? originalTargetKey : originalTargetBlock.getPrevSiblingKey();\n return blockMap.withMutations(function (blocks) {\n // update old parent\n transformBlock(originalParentKey, blocks, function (block) {\n var parentChildrenList = block.getChildKeys();\n return block.merge({\n children: parentChildrenList[\"delete\"](parentChildrenList.indexOf(originalBlockKey))\n });\n }); // update old prev\n\n transformBlock(originalPrevSiblingKey, blocks, function (block) {\n return block.merge({\n nextSibling: originalNextSiblingKey\n });\n }); // update old next\n\n transformBlock(originalNextSiblingKey, blocks, function (block) {\n return block.merge({\n prevSibling: originalPrevSiblingKey\n });\n }); // update new next\n\n transformBlock(newNextSiblingKey, blocks, function (block) {\n return block.merge({\n prevSibling: originalBlockKey\n });\n }); // update new prev\n\n transformBlock(newPrevSiblingKey, blocks, function (block) {\n return block.merge({\n nextSibling: originalBlockKey\n });\n }); // update new parent\n\n transformBlock(newParentKey, blocks, function (block) {\n var newParentChildrenList = block.getChildKeys();\n var targetBlockIndex = newParentChildrenList.indexOf(originalTargetKey);\n var insertionIndex = isInsertedAfterTarget ? targetBlockIndex + 1 : targetBlockIndex !== 0 ? targetBlockIndex - 1 : 0;\n var newChildrenArray = newParentChildrenList.toArray();\n newChildrenArray.splice(insertionIndex, 0, originalBlockKey);\n return block.merge({\n children: List(newChildrenArray)\n });\n }); // update block\n\n transformBlock(originalBlockKey, blocks, function (block) {\n return block.merge({\n nextSibling: newNextSiblingKey,\n prevSibling: newPrevSiblingKey,\n parent: newParentKey\n });\n });\n });\n};\n\nvar moveBlockInContentState = function moveBlockInContentState(contentState, blockToBeMoved, targetBlock, insertionMode) {\n !(insertionMode !== 'replace') ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Replacing blocks is not supported.') : invariant(false) : void 0;\n var targetKey = targetBlock.getKey();\n var blockKey = blockToBeMoved.getKey();\n !(blockKey !== targetKey) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Block cannot be moved next to itself.') : invariant(false) : void 0;\n var blockMap = contentState.getBlockMap();\n var isExperimentalTreeBlock = blockToBeMoved instanceof ContentBlockNode;\n var blocksToBeMoved = [blockToBeMoved];\n var blockMapWithoutBlocksToBeMoved = blockMap[\"delete\"](blockKey);\n\n if (isExperimentalTreeBlock) {\n blocksToBeMoved = [];\n blockMapWithoutBlocksToBeMoved = blockMap.withMutations(function (blocks) {\n var nextSiblingKey = blockToBeMoved.getNextSiblingKey();\n var nextDelimiterBlockKey = getNextDelimiterBlockKey(blockToBeMoved, blocks);\n blocks.toSeq().skipUntil(function (block) {\n return block.getKey() === blockKey;\n }).takeWhile(function (block) {\n var key = block.getKey();\n var isBlockToBeMoved = key === blockKey;\n var hasNextSiblingAndIsNotNextSibling = nextSiblingKey && key !== nextSiblingKey;\n var doesNotHaveNextSiblingAndIsNotDelimiter = !nextSiblingKey && block.getParentKey() && (!nextDelimiterBlockKey || key !== nextDelimiterBlockKey);\n return !!(isBlockToBeMoved || hasNextSiblingAndIsNotNextSibling || doesNotHaveNextSiblingAndIsNotDelimiter);\n }).forEach(function (block) {\n blocksToBeMoved.push(block);\n blocks[\"delete\"](block.getKey());\n });\n });\n }\n\n var blocksBefore = blockMapWithoutBlocksToBeMoved.toSeq().takeUntil(function (v) {\n return v === targetBlock;\n });\n var blocksAfter = blockMapWithoutBlocksToBeMoved.toSeq().skipUntil(function (v) {\n return v === targetBlock;\n }).skip(1);\n var slicedBlocks = blocksToBeMoved.map(function (block) {\n return [block.getKey(), block];\n });\n var newBlocks = OrderedMap();\n\n if (insertionMode === 'before') {\n var blockBefore = contentState.getBlockBefore(targetKey);\n !(!blockBefore || blockBefore.getKey() !== blockToBeMoved.getKey()) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Block cannot be moved next to itself.') : invariant(false) : void 0;\n newBlocks = blocksBefore.concat([].concat(slicedBlocks, [[targetKey, targetBlock]]), blocksAfter).toOrderedMap();\n } else if (insertionMode === 'after') {\n var blockAfter = contentState.getBlockAfter(targetKey);\n !(!blockAfter || blockAfter.getKey() !== blockKey) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Block cannot be moved next to itself.') : invariant(false) : void 0;\n newBlocks = blocksBefore.concat([[targetKey, targetBlock]].concat(slicedBlocks), blocksAfter).toOrderedMap();\n }\n\n return contentState.merge({\n blockMap: updateBlockMapLinks(newBlocks, blockToBeMoved, targetBlock, insertionMode, isExperimentalTreeBlock),\n selectionBefore: contentState.getSelectionAfter(),\n selectionAfter: contentState.getSelectionAfter().merge({\n anchorKey: blockKey,\n focusKey: blockKey\n })\n });\n};\n\nmodule.exports = moveBlockInContentState;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar warning = require(\"fbjs/lib/warning\");\n/**\n * Given a collapsed selection, move the focus `maxDistance` backward within\n * the selected block. If the selection will go beyond the start of the block,\n * move focus to the end of the previous block, but no further.\n *\n * This function is not Unicode-aware, so surrogate pairs will be treated\n * as having length 2.\n */\n\n\nfunction moveSelectionBackward(editorState, maxDistance) {\n var selection = editorState.getSelection(); // Should eventually make this an invariant\n\n process.env.NODE_ENV !== \"production\" ? warning(selection.isCollapsed(), 'moveSelectionBackward should only be called with a collapsed SelectionState') : void 0;\n var content = editorState.getCurrentContent();\n var key = selection.getStartKey();\n var offset = selection.getStartOffset();\n var focusKey = key;\n var focusOffset = 0;\n\n if (maxDistance > offset) {\n var keyBefore = content.getKeyBefore(key);\n\n if (keyBefore == null) {\n focusKey = key;\n } else {\n focusKey = keyBefore;\n var blockBefore = content.getBlockForKey(keyBefore);\n focusOffset = blockBefore.getText().length;\n }\n } else {\n focusOffset = offset - maxDistance;\n }\n\n return selection.merge({\n focusKey: focusKey,\n focusOffset: focusOffset,\n isBackward: true\n });\n}\n\nmodule.exports = moveSelectionBackward;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar warning = require(\"fbjs/lib/warning\");\n/**\n * Given a collapsed selection, move the focus `maxDistance` forward within\n * the selected block. If the selection will go beyond the end of the block,\n * move focus to the start of the next block, but no further.\n *\n * This function is not Unicode-aware, so surrogate pairs will be treated\n * as having length 2.\n */\n\n\nfunction moveSelectionForward(editorState, maxDistance) {\n var selection = editorState.getSelection(); // Should eventually make this an invariant\n\n process.env.NODE_ENV !== \"production\" ? warning(selection.isCollapsed(), 'moveSelectionForward should only be called with a collapsed SelectionState') : void 0;\n var key = selection.getStartKey();\n var offset = selection.getStartOffset();\n var content = editorState.getCurrentContent();\n var focusKey = key;\n var focusOffset;\n var block = content.getBlockForKey(key);\n\n if (maxDistance > block.getText().length - offset) {\n focusKey = content.getKeyAfter(key);\n focusOffset = 0;\n } else {\n focusOffset = offset + maxDistance;\n }\n\n return selection.merge({\n focusKey: focusKey,\n focusOffset: focusOffset\n });\n}\n\nmodule.exports = moveSelectionForward;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar ContentBlockNode = require(\"./ContentBlockNode\");\n\nvar generateRandomKey = require(\"./generateRandomKey\");\n\nvar Immutable = require(\"immutable\");\n\nvar OrderedMap = Immutable.OrderedMap;\n\nvar randomizeContentBlockNodeKeys = function randomizeContentBlockNodeKeys(blockMap) {\n var newKeysRef = {}; // we keep track of root blocks in order to update subsequent sibling links\n\n var lastRootBlock;\n return OrderedMap(blockMap.withMutations(function (blockMapState) {\n blockMapState.forEach(function (block, index) {\n var oldKey = block.getKey();\n var nextKey = block.getNextSiblingKey();\n var prevKey = block.getPrevSiblingKey();\n var childrenKeys = block.getChildKeys();\n var parentKey = block.getParentKey(); // new key that we will use to build linking\n\n var key = generateRandomKey(); // we will add it here to re-use it later\n\n newKeysRef[oldKey] = key;\n\n if (nextKey) {\n var nextBlock = blockMapState.get(nextKey);\n\n if (nextBlock) {\n blockMapState.setIn([nextKey, 'prevSibling'], key);\n } else {\n // this can happen when generating random keys for fragments\n blockMapState.setIn([oldKey, 'nextSibling'], null);\n }\n }\n\n if (prevKey) {\n var prevBlock = blockMapState.get(prevKey);\n\n if (prevBlock) {\n blockMapState.setIn([prevKey, 'nextSibling'], key);\n } else {\n // this can happen when generating random keys for fragments\n blockMapState.setIn([oldKey, 'prevSibling'], null);\n }\n }\n\n if (parentKey && blockMapState.get(parentKey)) {\n var parentBlock = blockMapState.get(parentKey);\n var parentChildrenList = parentBlock.getChildKeys();\n blockMapState.setIn([parentKey, 'children'], parentChildrenList.set(parentChildrenList.indexOf(block.getKey()), key));\n } else {\n // blocks will then be treated as root block nodes\n blockMapState.setIn([oldKey, 'parent'], null);\n\n if (lastRootBlock) {\n blockMapState.setIn([lastRootBlock.getKey(), 'nextSibling'], key);\n blockMapState.setIn([oldKey, 'prevSibling'], newKeysRef[lastRootBlock.getKey()]);\n }\n\n lastRootBlock = blockMapState.get(oldKey);\n }\n\n childrenKeys.forEach(function (childKey) {\n var childBlock = blockMapState.get(childKey);\n\n if (childBlock) {\n blockMapState.setIn([childKey, 'parent'], key);\n } else {\n blockMapState.setIn([oldKey, 'children'], block.getChildKeys().filter(function (child) {\n return child !== childKey;\n }));\n }\n });\n });\n }).toArray().map(function (block) {\n return [newKeysRef[block.getKey()], block.set('key', newKeysRef[block.getKey()])];\n }));\n};\n\nvar randomizeContentBlockKeys = function randomizeContentBlockKeys(blockMap) {\n return OrderedMap(blockMap.toArray().map(function (block) {\n var key = generateRandomKey();\n return [key, block.set('key', key)];\n }));\n};\n\nvar randomizeBlockMapKeys = function randomizeBlockMapKeys(blockMap) {\n var isTreeBasedBlockMap = blockMap.first() instanceof ContentBlockNode;\n\n if (!isTreeBasedBlockMap) {\n return randomizeContentBlockKeys(blockMap);\n }\n\n return randomizeContentBlockNodeKeys(blockMap);\n};\n\nmodule.exports = randomizeBlockMapKeys;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar CharacterMetadata = require(\"./CharacterMetadata\");\n\nvar findRangesImmutable = require(\"./findRangesImmutable\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nfunction removeEntitiesAtEdges(contentState, selectionState) {\n var blockMap = contentState.getBlockMap();\n var entityMap = contentState.getEntityMap();\n var updatedBlocks = {};\n var startKey = selectionState.getStartKey();\n var startOffset = selectionState.getStartOffset();\n var startBlock = blockMap.get(startKey);\n var updatedStart = removeForBlock(entityMap, startBlock, startOffset);\n\n if (updatedStart !== startBlock) {\n updatedBlocks[startKey] = updatedStart;\n }\n\n var endKey = selectionState.getEndKey();\n var endOffset = selectionState.getEndOffset();\n var endBlock = blockMap.get(endKey);\n\n if (startKey === endKey) {\n endBlock = updatedStart;\n }\n\n var updatedEnd = removeForBlock(entityMap, endBlock, endOffset);\n\n if (updatedEnd !== endBlock) {\n updatedBlocks[endKey] = updatedEnd;\n }\n\n if (!Object.keys(updatedBlocks).length) {\n return contentState.set('selectionAfter', selectionState);\n }\n\n return contentState.merge({\n blockMap: blockMap.merge(updatedBlocks),\n selectionAfter: selectionState\n });\n}\n/**\n * Given a list of characters and an offset that is in the middle of an entity,\n * returns the start and end of the entity that is overlapping the offset.\n * Note: This method requires that the offset be in an entity range.\n */\n\n\nfunction getRemovalRange(characters, entityKey, offset) {\n var removalRange; // Iterates through a list looking for ranges of matching items\n // based on the 'isEqual' callback.\n // Then instead of returning the result, call the 'found' callback\n // with each range.\n // Then filters those ranges based on the 'filter' callback\n //\n // Here we use it to find ranges of characters with the same entity key.\n\n findRangesImmutable(characters, // the list to iterate through\n function (a, b) {\n return a.getEntity() === b.getEntity();\n }, // 'isEqual' callback\n function (element) {\n return element.getEntity() === entityKey;\n }, // 'filter' callback\n function (start, end) {\n // 'found' callback\n if (start <= offset && end >= offset) {\n // this entity overlaps the offset index\n removalRange = {\n start: start,\n end: end\n };\n }\n });\n !(typeof removalRange === 'object') ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Removal range must exist within character list.') : invariant(false) : void 0;\n return removalRange;\n}\n\nfunction removeForBlock(entityMap, block, offset) {\n var chars = block.getCharacterList();\n var charBefore = offset > 0 ? chars.get(offset - 1) : undefined;\n var charAfter = offset < chars.count() ? chars.get(offset) : undefined;\n var entityBeforeCursor = charBefore ? charBefore.getEntity() : undefined;\n var entityAfterCursor = charAfter ? charAfter.getEntity() : undefined;\n\n if (entityAfterCursor && entityAfterCursor === entityBeforeCursor) {\n var entity = entityMap.__get(entityAfterCursor);\n\n if (entity.getMutability() !== 'MUTABLE') {\n var _getRemovalRange = getRemovalRange(chars, entityAfterCursor, offset),\n start = _getRemovalRange.start,\n end = _getRemovalRange.end;\n\n var current;\n\n while (start < end) {\n current = chars.get(start);\n chars = chars.set(start, CharacterMetadata.applyEntity(current, null));\n start++;\n }\n\n return block.set('characterList', chars);\n }\n }\n\n return block;\n}\n\nmodule.exports = removeEntitiesAtEdges;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar ContentBlockNode = require(\"./ContentBlockNode\");\n\nvar getNextDelimiterBlockKey = require(\"./getNextDelimiterBlockKey\");\n\nvar Immutable = require(\"immutable\");\n\nvar List = Immutable.List,\n Map = Immutable.Map;\n\nvar transformBlock = function transformBlock(key, blockMap, func) {\n if (!key) {\n return;\n }\n\n var block = blockMap.get(key);\n\n if (!block) {\n return;\n }\n\n blockMap.set(key, func(block));\n};\n/**\n * Ancestors needs to be preserved when there are non selected\n * children to make sure we do not leave any orphans behind\n */\n\n\nvar getAncestorsKeys = function getAncestorsKeys(blockKey, blockMap) {\n var parents = [];\n\n if (!blockKey) {\n return parents;\n }\n\n var blockNode = blockMap.get(blockKey);\n\n while (blockNode && blockNode.getParentKey()) {\n var parentKey = blockNode.getParentKey();\n\n if (parentKey) {\n parents.push(parentKey);\n }\n\n blockNode = parentKey ? blockMap.get(parentKey) : null;\n }\n\n return parents;\n};\n/**\n * Get all next delimiter keys until we hit a root delimiter and return\n * an array of key references\n */\n\n\nvar getNextDelimitersBlockKeys = function getNextDelimitersBlockKeys(block, blockMap) {\n var nextDelimiters = [];\n\n if (!block) {\n return nextDelimiters;\n }\n\n var nextDelimiter = getNextDelimiterBlockKey(block, blockMap);\n\n while (nextDelimiter && blockMap.get(nextDelimiter)) {\n var _block = blockMap.get(nextDelimiter);\n\n nextDelimiters.push(nextDelimiter); // we do not need to keep checking all root node siblings, just the first occurance\n\n nextDelimiter = _block.getParentKey() ? getNextDelimiterBlockKey(_block, blockMap) : null;\n }\n\n return nextDelimiters;\n};\n\nvar getNextValidSibling = function getNextValidSibling(block, blockMap, originalBlockMap) {\n if (!block) {\n return null;\n } // note that we need to make sure we refer to the original block since this\n // function is called within a withMutations\n\n\n var nextValidSiblingKey = originalBlockMap.get(block.getKey()).getNextSiblingKey();\n\n while (nextValidSiblingKey && !blockMap.get(nextValidSiblingKey)) {\n nextValidSiblingKey = originalBlockMap.get(nextValidSiblingKey).getNextSiblingKey() || null;\n }\n\n return nextValidSiblingKey;\n};\n\nvar getPrevValidSibling = function getPrevValidSibling(block, blockMap, originalBlockMap) {\n if (!block) {\n return null;\n } // note that we need to make sure we refer to the original block since this\n // function is called within a withMutations\n\n\n var prevValidSiblingKey = originalBlockMap.get(block.getKey()).getPrevSiblingKey();\n\n while (prevValidSiblingKey && !blockMap.get(prevValidSiblingKey)) {\n prevValidSiblingKey = originalBlockMap.get(prevValidSiblingKey).getPrevSiblingKey() || null;\n }\n\n return prevValidSiblingKey;\n};\n\nvar updateBlockMapLinks = function updateBlockMapLinks(blockMap, startBlock, endBlock, originalBlockMap) {\n return blockMap.withMutations(function (blocks) {\n // update start block if its retained\n transformBlock(startBlock.getKey(), blocks, function (block) {\n return block.merge({\n nextSibling: getNextValidSibling(block, blocks, originalBlockMap),\n prevSibling: getPrevValidSibling(block, blocks, originalBlockMap)\n });\n }); // update endblock if its retained\n\n transformBlock(endBlock.getKey(), blocks, function (block) {\n return block.merge({\n nextSibling: getNextValidSibling(block, blocks, originalBlockMap),\n prevSibling: getPrevValidSibling(block, blocks, originalBlockMap)\n });\n }); // update start block parent ancestors\n\n getAncestorsKeys(startBlock.getKey(), originalBlockMap).forEach(function (parentKey) {\n return transformBlock(parentKey, blocks, function (block) {\n return block.merge({\n children: block.getChildKeys().filter(function (key) {\n return blocks.get(key);\n }),\n nextSibling: getNextValidSibling(block, blocks, originalBlockMap),\n prevSibling: getPrevValidSibling(block, blocks, originalBlockMap)\n });\n });\n }); // update start block next - can only happen if startBlock == endBlock\n\n transformBlock(startBlock.getNextSiblingKey(), blocks, function (block) {\n return block.merge({\n prevSibling: startBlock.getPrevSiblingKey()\n });\n }); // update start block prev\n\n transformBlock(startBlock.getPrevSiblingKey(), blocks, function (block) {\n return block.merge({\n nextSibling: getNextValidSibling(block, blocks, originalBlockMap)\n });\n }); // update end block next\n\n transformBlock(endBlock.getNextSiblingKey(), blocks, function (block) {\n return block.merge({\n prevSibling: getPrevValidSibling(block, blocks, originalBlockMap)\n });\n }); // update end block prev\n\n transformBlock(endBlock.getPrevSiblingKey(), blocks, function (block) {\n return block.merge({\n nextSibling: endBlock.getNextSiblingKey()\n });\n }); // update end block parent ancestors\n\n getAncestorsKeys(endBlock.getKey(), originalBlockMap).forEach(function (parentKey) {\n transformBlock(parentKey, blocks, function (block) {\n return block.merge({\n children: block.getChildKeys().filter(function (key) {\n return blocks.get(key);\n }),\n nextSibling: getNextValidSibling(block, blocks, originalBlockMap),\n prevSibling: getPrevValidSibling(block, blocks, originalBlockMap)\n });\n });\n }); // update next delimiters all the way to a root delimiter\n\n getNextDelimitersBlockKeys(endBlock, originalBlockMap).forEach(function (delimiterKey) {\n return transformBlock(delimiterKey, blocks, function (block) {\n return block.merge({\n nextSibling: getNextValidSibling(block, blocks, originalBlockMap),\n prevSibling: getPrevValidSibling(block, blocks, originalBlockMap)\n });\n });\n }); // if parent (startBlock) was deleted\n\n if (blockMap.get(startBlock.getKey()) == null && blockMap.get(endBlock.getKey()) != null && endBlock.getParentKey() === startBlock.getKey() && endBlock.getPrevSiblingKey() == null) {\n var prevSiblingKey = startBlock.getPrevSiblingKey(); // endBlock becomes next sibling of parent's prevSibling\n\n transformBlock(endBlock.getKey(), blocks, function (block) {\n return block.merge({\n prevSibling: prevSiblingKey\n });\n });\n transformBlock(prevSiblingKey, blocks, function (block) {\n return block.merge({\n nextSibling: endBlock.getKey()\n });\n }); // Update parent for previous parent's children, and children for that parent\n\n var prevSibling = prevSiblingKey ? blockMap.get(prevSiblingKey) : null;\n var newParentKey = prevSibling ? prevSibling.getParentKey() : null;\n startBlock.getChildKeys().forEach(function (childKey) {\n transformBlock(childKey, blocks, function (block) {\n return block.merge({\n parent: newParentKey // set to null if there is no parent\n\n });\n });\n });\n\n if (newParentKey != null) {\n var newParent = blockMap.get(newParentKey);\n transformBlock(newParentKey, blocks, function (block) {\n return block.merge({\n children: newParent.getChildKeys().concat(startBlock.getChildKeys())\n });\n });\n } // last child of deleted parent should point to next sibling\n\n\n transformBlock(startBlock.getChildKeys().find(function (key) {\n var block = blockMap.get(key);\n return block.getNextSiblingKey() === null;\n }), blocks, function (block) {\n return block.merge({\n nextSibling: startBlock.getNextSiblingKey()\n });\n });\n }\n });\n};\n\nvar removeRangeFromContentState = function removeRangeFromContentState(contentState, selectionState) {\n if (selectionState.isCollapsed()) {\n return contentState;\n }\n\n var blockMap = contentState.getBlockMap();\n var startKey = selectionState.getStartKey();\n var startOffset = selectionState.getStartOffset();\n var endKey = selectionState.getEndKey();\n var endOffset = selectionState.getEndOffset();\n var startBlock = blockMap.get(startKey);\n var endBlock = blockMap.get(endKey); // we assume that ContentBlockNode and ContentBlocks are not mixed together\n\n var isExperimentalTreeBlock = startBlock instanceof ContentBlockNode; // used to retain blocks that should not be deleted to avoid orphan children\n\n var parentAncestors = [];\n\n if (isExperimentalTreeBlock) {\n var endBlockchildrenKeys = endBlock.getChildKeys();\n var endBlockAncestors = getAncestorsKeys(endKey, blockMap); // endBlock has unselected siblings so we can not remove its ancestors parents\n\n if (endBlock.getNextSiblingKey()) {\n parentAncestors = parentAncestors.concat(endBlockAncestors);\n } // endBlock has children so can not remove this block or any of its ancestors\n\n\n if (!endBlockchildrenKeys.isEmpty()) {\n parentAncestors = parentAncestors.concat(endBlockAncestors.concat([endKey]));\n } // we need to retain all ancestors of the next delimiter block\n\n\n parentAncestors = parentAncestors.concat(getAncestorsKeys(getNextDelimiterBlockKey(endBlock, blockMap), blockMap));\n }\n\n var characterList;\n\n if (startBlock === endBlock) {\n characterList = removeFromList(startBlock.getCharacterList(), startOffset, endOffset);\n } else {\n characterList = startBlock.getCharacterList().slice(0, startOffset).concat(endBlock.getCharacterList().slice(endOffset));\n }\n\n var modifiedStart = startBlock.merge({\n text: startBlock.getText().slice(0, startOffset) + endBlock.getText().slice(endOffset),\n characterList: characterList\n }); // If cursor (collapsed) is at the start of the first child, delete parent\n // instead of child\n\n var shouldDeleteParent = isExperimentalTreeBlock && startOffset === 0 && endOffset === 0 && endBlock.getParentKey() === startKey && endBlock.getPrevSiblingKey() == null;\n var newBlocks = shouldDeleteParent ? Map([[startKey, null]]) : blockMap.toSeq().skipUntil(function (_, k) {\n return k === startKey;\n }).takeUntil(function (_, k) {\n return k === endKey;\n }).filter(function (_, k) {\n return parentAncestors.indexOf(k) === -1;\n }).concat(Map([[endKey, null]])).map(function (_, k) {\n return k === startKey ? modifiedStart : null;\n });\n var updatedBlockMap = blockMap.merge(newBlocks).filter(function (block) {\n return !!block;\n }); // Only update tree block pointers if the range is across blocks\n\n if (isExperimentalTreeBlock && startBlock !== endBlock) {\n updatedBlockMap = updateBlockMapLinks(updatedBlockMap, startBlock, endBlock, blockMap);\n }\n\n return contentState.merge({\n blockMap: updatedBlockMap,\n selectionBefore: selectionState,\n selectionAfter: selectionState.merge({\n anchorKey: startKey,\n anchorOffset: startOffset,\n focusKey: startKey,\n focusOffset: startOffset,\n isBackward: false\n })\n });\n};\n/**\n * Maintain persistence for target list when removing characters on the\n * head and tail of the character list.\n */\n\n\nvar removeFromList = function removeFromList(targetList, startOffset, endOffset) {\n if (startOffset === 0) {\n while (startOffset < endOffset) {\n targetList = targetList.shift();\n startOffset++;\n }\n } else if (endOffset === targetList.count()) {\n while (endOffset > startOffset) {\n targetList = targetList.pop();\n endOffset--;\n }\n } else {\n var head = targetList.slice(0, startOffset);\n var tail = targetList.slice(endOffset);\n targetList = head.concat(tail).toList();\n }\n\n return targetList;\n};\n\nmodule.exports = removeRangeFromContentState;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar DraftModifier = require(\"./DraftModifier\");\n\nvar gkx = require(\"./gkx\");\n\nvar experimentalTreeDataSupport = gkx('draft_tree_data_support');\n/**\n * For a collapsed selection state, remove text based on the specified strategy.\n * If the selection state is not collapsed, remove the entire selected range.\n */\n\nfunction removeTextWithStrategy(editorState, strategy, direction) {\n var selection = editorState.getSelection();\n var content = editorState.getCurrentContent();\n var target = selection;\n var anchorKey = selection.getAnchorKey();\n var focusKey = selection.getFocusKey();\n var anchorBlock = content.getBlockForKey(anchorKey);\n\n if (experimentalTreeDataSupport) {\n if (direction === 'forward') {\n if (anchorKey !== focusKey) {\n // For now we ignore forward delete across blocks,\n // if there is demand for this we will implement it.\n return content;\n }\n }\n }\n\n if (selection.isCollapsed()) {\n if (direction === 'forward') {\n if (editorState.isSelectionAtEndOfContent()) {\n return content;\n }\n\n if (experimentalTreeDataSupport) {\n var isAtEndOfBlock = selection.getAnchorOffset() === content.getBlockForKey(anchorKey).getLength();\n\n if (isAtEndOfBlock) {\n var anchorBlockSibling = content.getBlockForKey(anchorBlock.nextSibling);\n\n if (!anchorBlockSibling || anchorBlockSibling.getLength() === 0) {\n // For now we ignore forward delete at the end of a block,\n // if there is demand for this we will implement it.\n return content;\n }\n }\n }\n } else if (editorState.isSelectionAtStartOfContent()) {\n return content;\n }\n\n target = strategy(editorState);\n\n if (target === selection) {\n return content;\n }\n }\n\n return DraftModifier.removeRange(content, target, direction);\n}\n\nmodule.exports = removeTextWithStrategy;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar REGEX_BLOCK_DELIMITER = new RegExp('\\r', 'g');\n\nfunction sanitizeDraftText(input) {\n return input.replace(REGEX_BLOCK_DELIMITER, '');\n}\n\nmodule.exports = sanitizeDraftText;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar DraftEffects = require(\"./DraftEffects\");\n\nvar DraftJsDebugLogging = require(\"./DraftJsDebugLogging\");\n\nvar UserAgent = require(\"fbjs/lib/UserAgent\");\n\nvar containsNode = require(\"fbjs/lib/containsNode\");\n\nvar getActiveElement = require(\"fbjs/lib/getActiveElement\");\n\nvar getCorrectDocumentFromNode = require(\"./getCorrectDocumentFromNode\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar isElement = require(\"./isElement\");\n\nvar isIE = UserAgent.isBrowser('IE');\n\nfunction getAnonymizedDOM(node, getNodeLabels) {\n if (!node) {\n return '[empty]';\n }\n\n var anonymized = anonymizeTextWithin(node, getNodeLabels);\n\n if (anonymized.nodeType === Node.TEXT_NODE) {\n return anonymized.textContent;\n }\n\n !isElement(anonymized) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Node must be an Element if it is not a text node.') : invariant(false) : void 0;\n var castedElement = anonymized;\n return castedElement.outerHTML;\n}\n\nfunction anonymizeTextWithin(node, getNodeLabels) {\n var labels = getNodeLabels !== undefined ? getNodeLabels(node) : [];\n\n if (node.nodeType === Node.TEXT_NODE) {\n var length = node.textContent.length;\n return getCorrectDocumentFromNode(node).createTextNode('[text ' + length + (labels.length ? ' | ' + labels.join(', ') : '') + ']');\n }\n\n var clone = node.cloneNode();\n\n if (clone.nodeType === 1 && labels.length) {\n clone.setAttribute('data-labels', labels.join(', '));\n }\n\n var childNodes = node.childNodes;\n\n for (var ii = 0; ii < childNodes.length; ii++) {\n clone.appendChild(anonymizeTextWithin(childNodes[ii], getNodeLabels));\n }\n\n return clone;\n}\n\nfunction getAnonymizedEditorDOM(node, getNodeLabels) {\n // grabbing the DOM content of the Draft editor\n var currentNode = node; // this should only be used after checking with isElement\n\n var castedNode = currentNode;\n\n while (currentNode) {\n if (isElement(currentNode) && castedNode.hasAttribute('contenteditable')) {\n // found the Draft editor container\n return getAnonymizedDOM(currentNode, getNodeLabels);\n } else {\n currentNode = currentNode.parentNode;\n castedNode = currentNode;\n }\n }\n\n return 'Could not find contentEditable parent of node';\n}\n\nfunction getNodeLength(node) {\n return node.nodeValue === null ? node.childNodes.length : node.nodeValue.length;\n}\n/**\n * In modern non-IE browsers, we can support both forward and backward\n * selections.\n *\n * Note: IE10+ supports the Selection object, but it does not support\n * the `extend` method, which means that even in modern IE, it's not possible\n * to programatically create a backward selection. Thus, for all IE\n * versions, we use the old IE API to create our selections.\n */\n\n\nfunction setDraftEditorSelection(selectionState, node, blockKey, nodeStart, nodeEnd) {\n // It's possible that the editor has been removed from the DOM but\n // our selection code doesn't know it yet. Forcing selection in\n // this case may lead to errors, so just bail now.\n var documentObject = getCorrectDocumentFromNode(node);\n\n if (!containsNode(documentObject.documentElement, node)) {\n return;\n }\n\n var selection = documentObject.defaultView.getSelection();\n var anchorKey = selectionState.getAnchorKey();\n var anchorOffset = selectionState.getAnchorOffset();\n var focusKey = selectionState.getFocusKey();\n var focusOffset = selectionState.getFocusOffset();\n var isBackward = selectionState.getIsBackward(); // IE doesn't support backward selection. Swap key/offset pairs.\n\n if (!selection.extend && isBackward) {\n var tempKey = anchorKey;\n var tempOffset = anchorOffset;\n anchorKey = focusKey;\n anchorOffset = focusOffset;\n focusKey = tempKey;\n focusOffset = tempOffset;\n isBackward = false;\n }\n\n var hasAnchor = anchorKey === blockKey && nodeStart <= anchorOffset && nodeEnd >= anchorOffset;\n var hasFocus = focusKey === blockKey && nodeStart <= focusOffset && nodeEnd >= focusOffset; // If the selection is entirely bound within this node, set the selection\n // and be done.\n\n if (hasAnchor && hasFocus) {\n selection.removeAllRanges();\n addPointToSelection(selection, node, anchorOffset - nodeStart, selectionState);\n addFocusToSelection(selection, node, focusOffset - nodeStart, selectionState);\n return;\n }\n\n if (!isBackward) {\n // If the anchor is within this node, set the range start.\n if (hasAnchor) {\n selection.removeAllRanges();\n addPointToSelection(selection, node, anchorOffset - nodeStart, selectionState);\n } // If the focus is within this node, we can assume that we have\n // already set the appropriate start range on the selection, and\n // can simply extend the selection.\n\n\n if (hasFocus) {\n addFocusToSelection(selection, node, focusOffset - nodeStart, selectionState);\n }\n } else {\n // If this node has the focus, set the selection range to be a\n // collapsed range beginning here. Later, when we encounter the anchor,\n // we'll use this information to extend the selection.\n if (hasFocus) {\n selection.removeAllRanges();\n addPointToSelection(selection, node, focusOffset - nodeStart, selectionState);\n } // If this node has the anchor, we may assume that the correct\n // focus information is already stored on the selection object.\n // We keep track of it, reset the selection range, and extend it\n // back to the focus point.\n\n\n if (hasAnchor) {\n var storedFocusNode = selection.focusNode;\n var storedFocusOffset = selection.focusOffset;\n selection.removeAllRanges();\n addPointToSelection(selection, node, anchorOffset - nodeStart, selectionState);\n addFocusToSelection(selection, storedFocusNode, storedFocusOffset, selectionState);\n }\n }\n}\n/**\n * Extend selection towards focus point.\n */\n\n\nfunction addFocusToSelection(selection, node, offset, selectionState) {\n var activeElement = getActiveElement();\n var extend = selection.extend; // containsNode returns false if node is null.\n // Let's refine the type of this value out here so flow knows.\n\n if (extend && node != null && containsNode(activeElement, node)) {\n // If `extend` is called while another element has focus, an error is\n // thrown. We therefore disable `extend` if the active element is somewhere\n // other than the node we are selecting. This should only occur in Firefox,\n // since it is the only browser to support multiple selections.\n // See https://bugzilla.mozilla.org/show_bug.cgi?id=921444.\n // logging to catch bug that is being reported in t16250795\n if (offset > getNodeLength(node)) {\n // the call to 'selection.extend' is about to throw\n DraftJsDebugLogging.logSelectionStateFailure({\n anonymizedDom: getAnonymizedEditorDOM(node),\n extraParams: JSON.stringify({\n offset: offset\n }),\n selectionState: JSON.stringify(selectionState.toJS())\n });\n } // logging to catch bug that is being reported in t18110632\n\n\n var nodeWasFocus = node === selection.focusNode;\n\n try {\n // Fixes some reports of \"InvalidStateError: Failed to execute 'extend' on\n // 'Selection': This Selection object doesn't have any Ranges.\"\n // Note: selection.extend does not exist in IE.\n if (selection.rangeCount > 0 && selection.extend) {\n selection.extend(node, offset);\n }\n } catch (e) {\n DraftJsDebugLogging.logSelectionStateFailure({\n anonymizedDom: getAnonymizedEditorDOM(node, function (n) {\n var labels = [];\n\n if (n === activeElement) {\n labels.push('active element');\n }\n\n if (n === selection.anchorNode) {\n labels.push('selection anchor node');\n }\n\n if (n === selection.focusNode) {\n labels.push('selection focus node');\n }\n\n return labels;\n }),\n extraParams: JSON.stringify({\n activeElementName: activeElement ? activeElement.nodeName : null,\n nodeIsFocus: node === selection.focusNode,\n nodeWasFocus: nodeWasFocus,\n selectionRangeCount: selection.rangeCount,\n selectionAnchorNodeName: selection.anchorNode ? selection.anchorNode.nodeName : null,\n selectionAnchorOffset: selection.anchorOffset,\n selectionFocusNodeName: selection.focusNode ? selection.focusNode.nodeName : null,\n selectionFocusOffset: selection.focusOffset,\n message: e ? '' + e : null,\n offset: offset\n }, null, 2),\n selectionState: JSON.stringify(selectionState.toJS(), null, 2)\n }); // allow the error to be thrown -\n // better than continuing in a broken state\n\n throw e;\n }\n } else {\n // IE doesn't support extend. This will mean no backward selection.\n // Extract the existing selection range and add focus to it.\n // Additionally, clone the selection range. IE11 throws an\n // InvalidStateError when attempting to access selection properties\n // after the range is detached.\n if (node && selection.rangeCount > 0) {\n var range = selection.getRangeAt(0);\n range.setEnd(node, offset);\n selection.addRange(range.cloneRange());\n }\n }\n}\n\nfunction addPointToSelection(selection, node, offset, selectionState) {\n var range = getCorrectDocumentFromNode(node).createRange(); // logging to catch bug that is being reported in t16250795\n\n if (offset > getNodeLength(node)) {\n // in this case we know that the call to 'range.setStart' is about to throw\n DraftJsDebugLogging.logSelectionStateFailure({\n anonymizedDom: getAnonymizedEditorDOM(node),\n extraParams: JSON.stringify({\n offset: offset\n }),\n selectionState: JSON.stringify(selectionState.toJS())\n });\n DraftEffects.handleExtensionCausedError();\n }\n\n range.setStart(node, offset); // IE sometimes throws Unspecified Error when trying to addRange\n\n if (isIE) {\n try {\n selection.addRange(range);\n } catch (e) {\n if (process.env.NODE_ENV !== \"production\") {\n /* eslint-disable-next-line no-console */\n console.warn('Call to selection.addRange() threw exception: ', e);\n }\n }\n } else {\n selection.addRange(range);\n }\n}\n\nmodule.exports = {\n setDraftEditorSelection: setDraftEditorSelection,\n addFocusToSelection: addFocusToSelection\n};","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar ContentBlockNode = require(\"./ContentBlockNode\");\n\nvar generateRandomKey = require(\"./generateRandomKey\");\n\nvar Immutable = require(\"immutable\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar modifyBlockForContentState = require(\"./modifyBlockForContentState\");\n\nvar List = Immutable.List,\n Map = Immutable.Map;\n\nvar transformBlock = function transformBlock(key, blockMap, func) {\n if (!key) {\n return;\n }\n\n var block = blockMap.get(key);\n\n if (!block) {\n return;\n }\n\n blockMap.set(key, func(block));\n};\n\nvar updateBlockMapLinks = function updateBlockMapLinks(blockMap, originalBlock, belowBlock) {\n return blockMap.withMutations(function (blocks) {\n var originalBlockKey = originalBlock.getKey();\n var belowBlockKey = belowBlock.getKey(); // update block parent\n\n transformBlock(originalBlock.getParentKey(), blocks, function (block) {\n var parentChildrenList = block.getChildKeys();\n var insertionIndex = parentChildrenList.indexOf(originalBlockKey) + 1;\n var newChildrenArray = parentChildrenList.toArray();\n newChildrenArray.splice(insertionIndex, 0, belowBlockKey);\n return block.merge({\n children: List(newChildrenArray)\n });\n }); // update original next block\n\n transformBlock(originalBlock.getNextSiblingKey(), blocks, function (block) {\n return block.merge({\n prevSibling: belowBlockKey\n });\n }); // update original block\n\n transformBlock(originalBlockKey, blocks, function (block) {\n return block.merge({\n nextSibling: belowBlockKey\n });\n }); // update below block\n\n transformBlock(belowBlockKey, blocks, function (block) {\n return block.merge({\n prevSibling: originalBlockKey\n });\n });\n });\n};\n\nvar splitBlockInContentState = function splitBlockInContentState(contentState, selectionState) {\n !selectionState.isCollapsed() ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Selection range must be collapsed.') : invariant(false) : void 0;\n var key = selectionState.getAnchorKey();\n var blockMap = contentState.getBlockMap();\n var blockToSplit = blockMap.get(key);\n var text = blockToSplit.getText();\n\n if (!text) {\n var blockType = blockToSplit.getType();\n\n if (blockType === 'unordered-list-item' || blockType === 'ordered-list-item') {\n return modifyBlockForContentState(contentState, selectionState, function (block) {\n return block.merge({\n type: 'unstyled',\n depth: 0\n });\n });\n }\n }\n\n var offset = selectionState.getAnchorOffset();\n var chars = blockToSplit.getCharacterList();\n var keyBelow = generateRandomKey();\n var isExperimentalTreeBlock = blockToSplit instanceof ContentBlockNode;\n var blockAbove = blockToSplit.merge({\n text: text.slice(0, offset),\n characterList: chars.slice(0, offset)\n });\n var blockBelow = blockAbove.merge({\n key: keyBelow,\n text: text.slice(offset),\n characterList: chars.slice(offset),\n data: Map()\n });\n var blocksBefore = blockMap.toSeq().takeUntil(function (v) {\n return v === blockToSplit;\n });\n var blocksAfter = blockMap.toSeq().skipUntil(function (v) {\n return v === blockToSplit;\n }).rest();\n var newBlocks = blocksBefore.concat([[key, blockAbove], [keyBelow, blockBelow]], blocksAfter).toOrderedMap();\n\n if (isExperimentalTreeBlock) {\n !blockToSplit.getChildKeys().isEmpty() ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'ContentBlockNode must not have children') : invariant(false) : void 0;\n newBlocks = updateBlockMapLinks(newBlocks, blockAbove, blockBelow);\n }\n\n return contentState.merge({\n blockMap: newBlocks,\n selectionBefore: selectionState,\n selectionAfter: selectionState.merge({\n anchorKey: keyBelow,\n anchorOffset: 0,\n focusKey: keyBelow,\n focusOffset: 0,\n isBackward: false\n })\n });\n};\n\nmodule.exports = splitBlockInContentState;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar NEWLINE_REGEX = /\\r\\n?|\\n/g;\n\nfunction splitTextIntoTextBlocks(text) {\n return text.split(NEWLINE_REGEX);\n}\n\nmodule.exports = splitTextIntoTextBlocks;","\"use strict\";\n\n/**\n * Copyright 2004-present Facebook. All Rights Reserved.\n *\n * @typechecks\n * \n * @format\n */\n\n/*eslint-disable no-bitwise */\n\n/**\n * Based on the rfc4122-compliant solution posted at\n * http://stackoverflow.com/questions/105034\n */\nfunction uuid() {\n return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {\n var r = Math.random() * 16 | 0;\n var v = c == 'x' ? r : r & 0x3 | 0x8;\n return v.toString(16);\n });\n}\n\nmodule.exports = uuid;","/**\n * Copyright (c) 2014-2015, Facebook, Inc.\n * All rights reserved.\n *\n * This source code is licensed under the BSD-style license found in the\n * LICENSE file in the root directory of this source tree. An additional grant\n * of patent rights can be found in the PATENTS file in the same directory.\n */\n\n(function (global, factory) {\n typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :\n typeof define === 'function' && define.amd ? define(factory) :\n global.Immutable = factory();\n}(this, function () { 'use strict';var SLICE$0 = Array.prototype.slice;\n\n function createClass(ctor, superClass) {\n if (superClass) {\n ctor.prototype = Object.create(superClass.prototype);\n }\n ctor.prototype.constructor = ctor;\n }\n\n function Iterable(value) {\n return isIterable(value) ? value : Seq(value);\n }\n\n\n createClass(KeyedIterable, Iterable);\n function KeyedIterable(value) {\n return isKeyed(value) ? value : KeyedSeq(value);\n }\n\n\n createClass(IndexedIterable, Iterable);\n function IndexedIterable(value) {\n return isIndexed(value) ? value : IndexedSeq(value);\n }\n\n\n createClass(SetIterable, Iterable);\n function SetIterable(value) {\n return isIterable(value) && !isAssociative(value) ? value : SetSeq(value);\n }\n\n\n\n function isIterable(maybeIterable) {\n return !!(maybeIterable && maybeIterable[IS_ITERABLE_SENTINEL]);\n }\n\n function isKeyed(maybeKeyed) {\n return !!(maybeKeyed && maybeKeyed[IS_KEYED_SENTINEL]);\n }\n\n function isIndexed(maybeIndexed) {\n return !!(maybeIndexed && maybeIndexed[IS_INDEXED_SENTINEL]);\n }\n\n function isAssociative(maybeAssociative) {\n return isKeyed(maybeAssociative) || isIndexed(maybeAssociative);\n }\n\n function isOrdered(maybeOrdered) {\n return !!(maybeOrdered && maybeOrdered[IS_ORDERED_SENTINEL]);\n }\n\n Iterable.isIterable = isIterable;\n Iterable.isKeyed = isKeyed;\n Iterable.isIndexed = isIndexed;\n Iterable.isAssociative = isAssociative;\n Iterable.isOrdered = isOrdered;\n\n Iterable.Keyed = KeyedIterable;\n Iterable.Indexed = IndexedIterable;\n Iterable.Set = SetIterable;\n\n\n var IS_ITERABLE_SENTINEL = '@@__IMMUTABLE_ITERABLE__@@';\n var IS_KEYED_SENTINEL = '@@__IMMUTABLE_KEYED__@@';\n var IS_INDEXED_SENTINEL = '@@__IMMUTABLE_INDEXED__@@';\n var IS_ORDERED_SENTINEL = '@@__IMMUTABLE_ORDERED__@@';\n\n // Used for setting prototype methods that IE8 chokes on.\n var DELETE = 'delete';\n\n // Constants describing the size of trie nodes.\n var SHIFT = 5; // Resulted in best performance after ______?\n var SIZE = 1 << SHIFT;\n var MASK = SIZE - 1;\n\n // A consistent shared value representing \"not set\" which equals nothing other\n // than itself, and nothing that could be provided externally.\n var NOT_SET = {};\n\n // Boolean references, Rough equivalent of `bool &`.\n var CHANGE_LENGTH = { value: false };\n var DID_ALTER = { value: false };\n\n function MakeRef(ref) {\n ref.value = false;\n return ref;\n }\n\n function SetRef(ref) {\n ref && (ref.value = true);\n }\n\n // A function which returns a value representing an \"owner\" for transient writes\n // to tries. The return value will only ever equal itself, and will not equal\n // the return of any subsequent call of this function.\n function OwnerID() {}\n\n // http://jsperf.com/copy-array-inline\n function arrCopy(arr, offset) {\n offset = offset || 0;\n var len = Math.max(0, arr.length - offset);\n var newArr = new Array(len);\n for (var ii = 0; ii < len; ii++) {\n newArr[ii] = arr[ii + offset];\n }\n return newArr;\n }\n\n function ensureSize(iter) {\n if (iter.size === undefined) {\n iter.size = iter.__iterate(returnTrue);\n }\n return iter.size;\n }\n\n function wrapIndex(iter, index) {\n // This implements \"is array index\" which the ECMAString spec defines as:\n //\n // A String property name P is an array index if and only if\n // ToString(ToUint32(P)) is equal to P and ToUint32(P) is not equal\n // to 2^32−1.\n //\n // http://www.ecma-international.org/ecma-262/6.0/#sec-array-exotic-objects\n if (typeof index !== 'number') {\n var uint32Index = index >>> 0; // N >>> 0 is shorthand for ToUint32\n if ('' + uint32Index !== index || uint32Index === 4294967295) {\n return NaN;\n }\n index = uint32Index;\n }\n return index < 0 ? ensureSize(iter) + index : index;\n }\n\n function returnTrue() {\n return true;\n }\n\n function wholeSlice(begin, end, size) {\n return (begin === 0 || (size !== undefined && begin <= -size)) &&\n (end === undefined || (size !== undefined && end >= size));\n }\n\n function resolveBegin(begin, size) {\n return resolveIndex(begin, size, 0);\n }\n\n function resolveEnd(end, size) {\n return resolveIndex(end, size, size);\n }\n\n function resolveIndex(index, size, defaultIndex) {\n return index === undefined ?\n defaultIndex :\n index < 0 ?\n Math.max(0, size + index) :\n size === undefined ?\n index :\n Math.min(size, index);\n }\n\n /* global Symbol */\n\n var ITERATE_KEYS = 0;\n var ITERATE_VALUES = 1;\n var ITERATE_ENTRIES = 2;\n\n var REAL_ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;\n var FAUX_ITERATOR_SYMBOL = '@@iterator';\n\n var ITERATOR_SYMBOL = REAL_ITERATOR_SYMBOL || FAUX_ITERATOR_SYMBOL;\n\n\n function Iterator(next) {\n this.next = next;\n }\n\n Iterator.prototype.toString = function() {\n return '[Iterator]';\n };\n\n\n Iterator.KEYS = ITERATE_KEYS;\n Iterator.VALUES = ITERATE_VALUES;\n Iterator.ENTRIES = ITERATE_ENTRIES;\n\n Iterator.prototype.inspect =\n Iterator.prototype.toSource = function () { return this.toString(); }\n Iterator.prototype[ITERATOR_SYMBOL] = function () {\n return this;\n };\n\n\n function iteratorValue(type, k, v, iteratorResult) {\n var value = type === 0 ? k : type === 1 ? v : [k, v];\n iteratorResult ? (iteratorResult.value = value) : (iteratorResult = {\n value: value, done: false\n });\n return iteratorResult;\n }\n\n function iteratorDone() {\n return { value: undefined, done: true };\n }\n\n function hasIterator(maybeIterable) {\n return !!getIteratorFn(maybeIterable);\n }\n\n function isIterator(maybeIterator) {\n return maybeIterator && typeof maybeIterator.next === 'function';\n }\n\n function getIterator(iterable) {\n var iteratorFn = getIteratorFn(iterable);\n return iteratorFn && iteratorFn.call(iterable);\n }\n\n function getIteratorFn(iterable) {\n var iteratorFn = iterable && (\n (REAL_ITERATOR_SYMBOL && iterable[REAL_ITERATOR_SYMBOL]) ||\n iterable[FAUX_ITERATOR_SYMBOL]\n );\n if (typeof iteratorFn === 'function') {\n return iteratorFn;\n }\n }\n\n function isArrayLike(value) {\n return value && typeof value.length === 'number';\n }\n\n createClass(Seq, Iterable);\n function Seq(value) {\n return value === null || value === undefined ? emptySequence() :\n isIterable(value) ? value.toSeq() : seqFromValue(value);\n }\n\n Seq.of = function(/*...values*/) {\n return Seq(arguments);\n };\n\n Seq.prototype.toSeq = function() {\n return this;\n };\n\n Seq.prototype.toString = function() {\n return this.__toString('Seq {', '}');\n };\n\n Seq.prototype.cacheResult = function() {\n if (!this._cache && this.__iterateUncached) {\n this._cache = this.entrySeq().toArray();\n this.size = this._cache.length;\n }\n return this;\n };\n\n // abstract __iterateUncached(fn, reverse)\n\n Seq.prototype.__iterate = function(fn, reverse) {\n return seqIterate(this, fn, reverse, true);\n };\n\n // abstract __iteratorUncached(type, reverse)\n\n Seq.prototype.__iterator = function(type, reverse) {\n return seqIterator(this, type, reverse, true);\n };\n\n\n\n createClass(KeyedSeq, Seq);\n function KeyedSeq(value) {\n return value === null || value === undefined ?\n emptySequence().toKeyedSeq() :\n isIterable(value) ?\n (isKeyed(value) ? value.toSeq() : value.fromEntrySeq()) :\n keyedSeqFromValue(value);\n }\n\n KeyedSeq.prototype.toKeyedSeq = function() {\n return this;\n };\n\n\n\n createClass(IndexedSeq, Seq);\n function IndexedSeq(value) {\n return value === null || value === undefined ? emptySequence() :\n !isIterable(value) ? indexedSeqFromValue(value) :\n isKeyed(value) ? value.entrySeq() : value.toIndexedSeq();\n }\n\n IndexedSeq.of = function(/*...values*/) {\n return IndexedSeq(arguments);\n };\n\n IndexedSeq.prototype.toIndexedSeq = function() {\n return this;\n };\n\n IndexedSeq.prototype.toString = function() {\n return this.__toString('Seq [', ']');\n };\n\n IndexedSeq.prototype.__iterate = function(fn, reverse) {\n return seqIterate(this, fn, reverse, false);\n };\n\n IndexedSeq.prototype.__iterator = function(type, reverse) {\n return seqIterator(this, type, reverse, false);\n };\n\n\n\n createClass(SetSeq, Seq);\n function SetSeq(value) {\n return (\n value === null || value === undefined ? emptySequence() :\n !isIterable(value) ? indexedSeqFromValue(value) :\n isKeyed(value) ? value.entrySeq() : value\n ).toSetSeq();\n }\n\n SetSeq.of = function(/*...values*/) {\n return SetSeq(arguments);\n };\n\n SetSeq.prototype.toSetSeq = function() {\n return this;\n };\n\n\n\n Seq.isSeq = isSeq;\n Seq.Keyed = KeyedSeq;\n Seq.Set = SetSeq;\n Seq.Indexed = IndexedSeq;\n\n var IS_SEQ_SENTINEL = '@@__IMMUTABLE_SEQ__@@';\n\n Seq.prototype[IS_SEQ_SENTINEL] = true;\n\n\n\n createClass(ArraySeq, IndexedSeq);\n function ArraySeq(array) {\n this._array = array;\n this.size = array.length;\n }\n\n ArraySeq.prototype.get = function(index, notSetValue) {\n return this.has(index) ? this._array[wrapIndex(this, index)] : notSetValue;\n };\n\n ArraySeq.prototype.__iterate = function(fn, reverse) {\n var array = this._array;\n var maxIndex = array.length - 1;\n for (var ii = 0; ii <= maxIndex; ii++) {\n if (fn(array[reverse ? maxIndex - ii : ii], ii, this) === false) {\n return ii + 1;\n }\n }\n return ii;\n };\n\n ArraySeq.prototype.__iterator = function(type, reverse) {\n var array = this._array;\n var maxIndex = array.length - 1;\n var ii = 0;\n return new Iterator(function() \n {return ii > maxIndex ?\n iteratorDone() :\n iteratorValue(type, ii, array[reverse ? maxIndex - ii++ : ii++])}\n );\n };\n\n\n\n createClass(ObjectSeq, KeyedSeq);\n function ObjectSeq(object) {\n var keys = Object.keys(object);\n this._object = object;\n this._keys = keys;\n this.size = keys.length;\n }\n\n ObjectSeq.prototype.get = function(key, notSetValue) {\n if (notSetValue !== undefined && !this.has(key)) {\n return notSetValue;\n }\n return this._object[key];\n };\n\n ObjectSeq.prototype.has = function(key) {\n return this._object.hasOwnProperty(key);\n };\n\n ObjectSeq.prototype.__iterate = function(fn, reverse) {\n var object = this._object;\n var keys = this._keys;\n var maxIndex = keys.length - 1;\n for (var ii = 0; ii <= maxIndex; ii++) {\n var key = keys[reverse ? maxIndex - ii : ii];\n if (fn(object[key], key, this) === false) {\n return ii + 1;\n }\n }\n return ii;\n };\n\n ObjectSeq.prototype.__iterator = function(type, reverse) {\n var object = this._object;\n var keys = this._keys;\n var maxIndex = keys.length - 1;\n var ii = 0;\n return new Iterator(function() {\n var key = keys[reverse ? maxIndex - ii : ii];\n return ii++ > maxIndex ?\n iteratorDone() :\n iteratorValue(type, key, object[key]);\n });\n };\n\n ObjectSeq.prototype[IS_ORDERED_SENTINEL] = true;\n\n\n createClass(IterableSeq, IndexedSeq);\n function IterableSeq(iterable) {\n this._iterable = iterable;\n this.size = iterable.length || iterable.size;\n }\n\n IterableSeq.prototype.__iterateUncached = function(fn, reverse) {\n if (reverse) {\n return this.cacheResult().__iterate(fn, reverse);\n }\n var iterable = this._iterable;\n var iterator = getIterator(iterable);\n var iterations = 0;\n if (isIterator(iterator)) {\n var step;\n while (!(step = iterator.next()).done) {\n if (fn(step.value, iterations++, this) === false) {\n break;\n }\n }\n }\n return iterations;\n };\n\n IterableSeq.prototype.__iteratorUncached = function(type, reverse) {\n if (reverse) {\n return this.cacheResult().__iterator(type, reverse);\n }\n var iterable = this._iterable;\n var iterator = getIterator(iterable);\n if (!isIterator(iterator)) {\n return new Iterator(iteratorDone);\n }\n var iterations = 0;\n return new Iterator(function() {\n var step = iterator.next();\n return step.done ? step : iteratorValue(type, iterations++, step.value);\n });\n };\n\n\n\n createClass(IteratorSeq, IndexedSeq);\n function IteratorSeq(iterator) {\n this._iterator = iterator;\n this._iteratorCache = [];\n }\n\n IteratorSeq.prototype.__iterateUncached = function(fn, reverse) {\n if (reverse) {\n return this.cacheResult().__iterate(fn, reverse);\n }\n var iterator = this._iterator;\n var cache = this._iteratorCache;\n var iterations = 0;\n while (iterations < cache.length) {\n if (fn(cache[iterations], iterations++, this) === false) {\n return iterations;\n }\n }\n var step;\n while (!(step = iterator.next()).done) {\n var val = step.value;\n cache[iterations] = val;\n if (fn(val, iterations++, this) === false) {\n break;\n }\n }\n return iterations;\n };\n\n IteratorSeq.prototype.__iteratorUncached = function(type, reverse) {\n if (reverse) {\n return this.cacheResult().__iterator(type, reverse);\n }\n var iterator = this._iterator;\n var cache = this._iteratorCache;\n var iterations = 0;\n return new Iterator(function() {\n if (iterations >= cache.length) {\n var step = iterator.next();\n if (step.done) {\n return step;\n }\n cache[iterations] = step.value;\n }\n return iteratorValue(type, iterations, cache[iterations++]);\n });\n };\n\n\n\n\n // # pragma Helper functions\n\n function isSeq(maybeSeq) {\n return !!(maybeSeq && maybeSeq[IS_SEQ_SENTINEL]);\n }\n\n var EMPTY_SEQ;\n\n function emptySequence() {\n return EMPTY_SEQ || (EMPTY_SEQ = new ArraySeq([]));\n }\n\n function keyedSeqFromValue(value) {\n var seq =\n Array.isArray(value) ? new ArraySeq(value).fromEntrySeq() :\n isIterator(value) ? new IteratorSeq(value).fromEntrySeq() :\n hasIterator(value) ? new IterableSeq(value).fromEntrySeq() :\n typeof value === 'object' ? new ObjectSeq(value) :\n undefined;\n if (!seq) {\n throw new TypeError(\n 'Expected Array or iterable object of [k, v] entries, '+\n 'or keyed object: ' + value\n );\n }\n return seq;\n }\n\n function indexedSeqFromValue(value) {\n var seq = maybeIndexedSeqFromValue(value);\n if (!seq) {\n throw new TypeError(\n 'Expected Array or iterable object of values: ' + value\n );\n }\n return seq;\n }\n\n function seqFromValue(value) {\n var seq = maybeIndexedSeqFromValue(value) ||\n (typeof value === 'object' && new ObjectSeq(value));\n if (!seq) {\n throw new TypeError(\n 'Expected Array or iterable object of values, or keyed object: ' + value\n );\n }\n return seq;\n }\n\n function maybeIndexedSeqFromValue(value) {\n return (\n isArrayLike(value) ? new ArraySeq(value) :\n isIterator(value) ? new IteratorSeq(value) :\n hasIterator(value) ? new IterableSeq(value) :\n undefined\n );\n }\n\n function seqIterate(seq, fn, reverse, useKeys) {\n var cache = seq._cache;\n if (cache) {\n var maxIndex = cache.length - 1;\n for (var ii = 0; ii <= maxIndex; ii++) {\n var entry = cache[reverse ? maxIndex - ii : ii];\n if (fn(entry[1], useKeys ? entry[0] : ii, seq) === false) {\n return ii + 1;\n }\n }\n return ii;\n }\n return seq.__iterateUncached(fn, reverse);\n }\n\n function seqIterator(seq, type, reverse, useKeys) {\n var cache = seq._cache;\n if (cache) {\n var maxIndex = cache.length - 1;\n var ii = 0;\n return new Iterator(function() {\n var entry = cache[reverse ? maxIndex - ii : ii];\n return ii++ > maxIndex ?\n iteratorDone() :\n iteratorValue(type, useKeys ? entry[0] : ii - 1, entry[1]);\n });\n }\n return seq.__iteratorUncached(type, reverse);\n }\n\n function fromJS(json, converter) {\n return converter ?\n fromJSWith(converter, json, '', {'': json}) :\n fromJSDefault(json);\n }\n\n function fromJSWith(converter, json, key, parentJSON) {\n if (Array.isArray(json)) {\n return converter.call(parentJSON, key, IndexedSeq(json).map(function(v, k) {return fromJSWith(converter, v, k, json)}));\n }\n if (isPlainObj(json)) {\n return converter.call(parentJSON, key, KeyedSeq(json).map(function(v, k) {return fromJSWith(converter, v, k, json)}));\n }\n return json;\n }\n\n function fromJSDefault(json) {\n if (Array.isArray(json)) {\n return IndexedSeq(json).map(fromJSDefault).toList();\n }\n if (isPlainObj(json)) {\n return KeyedSeq(json).map(fromJSDefault).toMap();\n }\n return json;\n }\n\n function isPlainObj(value) {\n return value && (value.constructor === Object || value.constructor === undefined);\n }\n\n /**\n * An extension of the \"same-value\" algorithm as [described for use by ES6 Map\n * and Set](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map#Key_equality)\n *\n * NaN is considered the same as NaN, however -0 and 0 are considered the same\n * value, which is different from the algorithm described by\n * [`Object.is`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is).\n *\n * This is extended further to allow Objects to describe the values they\n * represent, by way of `valueOf` or `equals` (and `hashCode`).\n *\n * Note: because of this extension, the key equality of Immutable.Map and the\n * value equality of Immutable.Set will differ from ES6 Map and Set.\n *\n * ### Defining custom values\n *\n * The easiest way to describe the value an object represents is by implementing\n * `valueOf`. For example, `Date` represents a value by returning a unix\n * timestamp for `valueOf`:\n *\n * var date1 = new Date(1234567890000); // Fri Feb 13 2009 ...\n * var date2 = new Date(1234567890000);\n * date1.valueOf(); // 1234567890000\n * assert( date1 !== date2 );\n * assert( Immutable.is( date1, date2 ) );\n *\n * Note: overriding `valueOf` may have other implications if you use this object\n * where JavaScript expects a primitive, such as implicit string coercion.\n *\n * For more complex types, especially collections, implementing `valueOf` may\n * not be performant. An alternative is to implement `equals` and `hashCode`.\n *\n * `equals` takes another object, presumably of similar type, and returns true\n * if the it is equal. Equality is symmetrical, so the same result should be\n * returned if this and the argument are flipped.\n *\n * assert( a.equals(b) === b.equals(a) );\n *\n * `hashCode` returns a 32bit integer number representing the object which will\n * be used to determine how to store the value object in a Map or Set. You must\n * provide both or neither methods, one must not exist without the other.\n *\n * Also, an important relationship between these methods must be upheld: if two\n * values are equal, they *must* return the same hashCode. If the values are not\n * equal, they might have the same hashCode; this is called a hash collision,\n * and while undesirable for performance reasons, it is acceptable.\n *\n * if (a.equals(b)) {\n * assert( a.hashCode() === b.hashCode() );\n * }\n *\n * All Immutable collections implement `equals` and `hashCode`.\n *\n */\n function is(valueA, valueB) {\n if (valueA === valueB || (valueA !== valueA && valueB !== valueB)) {\n return true;\n }\n if (!valueA || !valueB) {\n return false;\n }\n if (typeof valueA.valueOf === 'function' &&\n typeof valueB.valueOf === 'function') {\n valueA = valueA.valueOf();\n valueB = valueB.valueOf();\n if (valueA === valueB || (valueA !== valueA && valueB !== valueB)) {\n return true;\n }\n if (!valueA || !valueB) {\n return false;\n }\n }\n if (typeof valueA.equals === 'function' &&\n typeof valueB.equals === 'function' &&\n valueA.equals(valueB)) {\n return true;\n }\n return false;\n }\n\n function deepEqual(a, b) {\n if (a === b) {\n return true;\n }\n\n if (\n !isIterable(b) ||\n a.size !== undefined && b.size !== undefined && a.size !== b.size ||\n a.__hash !== undefined && b.__hash !== undefined && a.__hash !== b.__hash ||\n isKeyed(a) !== isKeyed(b) ||\n isIndexed(a) !== isIndexed(b) ||\n isOrdered(a) !== isOrdered(b)\n ) {\n return false;\n }\n\n if (a.size === 0 && b.size === 0) {\n return true;\n }\n\n var notAssociative = !isAssociative(a);\n\n if (isOrdered(a)) {\n var entries = a.entries();\n return b.every(function(v, k) {\n var entry = entries.next().value;\n return entry && is(entry[1], v) && (notAssociative || is(entry[0], k));\n }) && entries.next().done;\n }\n\n var flipped = false;\n\n if (a.size === undefined) {\n if (b.size === undefined) {\n if (typeof a.cacheResult === 'function') {\n a.cacheResult();\n }\n } else {\n flipped = true;\n var _ = a;\n a = b;\n b = _;\n }\n }\n\n var allEqual = true;\n var bSize = b.__iterate(function(v, k) {\n if (notAssociative ? !a.has(v) :\n flipped ? !is(v, a.get(k, NOT_SET)) : !is(a.get(k, NOT_SET), v)) {\n allEqual = false;\n return false;\n }\n });\n\n return allEqual && a.size === bSize;\n }\n\n createClass(Repeat, IndexedSeq);\n\n function Repeat(value, times) {\n if (!(this instanceof Repeat)) {\n return new Repeat(value, times);\n }\n this._value = value;\n this.size = times === undefined ? Infinity : Math.max(0, times);\n if (this.size === 0) {\n if (EMPTY_REPEAT) {\n return EMPTY_REPEAT;\n }\n EMPTY_REPEAT = this;\n }\n }\n\n Repeat.prototype.toString = function() {\n if (this.size === 0) {\n return 'Repeat []';\n }\n return 'Repeat [ ' + this._value + ' ' + this.size + ' times ]';\n };\n\n Repeat.prototype.get = function(index, notSetValue) {\n return this.has(index) ? this._value : notSetValue;\n };\n\n Repeat.prototype.includes = function(searchValue) {\n return is(this._value, searchValue);\n };\n\n Repeat.prototype.slice = function(begin, end) {\n var size = this.size;\n return wholeSlice(begin, end, size) ? this :\n new Repeat(this._value, resolveEnd(end, size) - resolveBegin(begin, size));\n };\n\n Repeat.prototype.reverse = function() {\n return this;\n };\n\n Repeat.prototype.indexOf = function(searchValue) {\n if (is(this._value, searchValue)) {\n return 0;\n }\n return -1;\n };\n\n Repeat.prototype.lastIndexOf = function(searchValue) {\n if (is(this._value, searchValue)) {\n return this.size;\n }\n return -1;\n };\n\n Repeat.prototype.__iterate = function(fn, reverse) {\n for (var ii = 0; ii < this.size; ii++) {\n if (fn(this._value, ii, this) === false) {\n return ii + 1;\n }\n }\n return ii;\n };\n\n Repeat.prototype.__iterator = function(type, reverse) {var this$0 = this;\n var ii = 0;\n return new Iterator(function() \n {return ii < this$0.size ? iteratorValue(type, ii++, this$0._value) : iteratorDone()}\n );\n };\n\n Repeat.prototype.equals = function(other) {\n return other instanceof Repeat ?\n is(this._value, other._value) :\n deepEqual(other);\n };\n\n\n var EMPTY_REPEAT;\n\n function invariant(condition, error) {\n if (!condition) throw new Error(error);\n }\n\n createClass(Range, IndexedSeq);\n\n function Range(start, end, step) {\n if (!(this instanceof Range)) {\n return new Range(start, end, step);\n }\n invariant(step !== 0, 'Cannot step a Range by 0');\n start = start || 0;\n if (end === undefined) {\n end = Infinity;\n }\n step = step === undefined ? 1 : Math.abs(step);\n if (end < start) {\n step = -step;\n }\n this._start = start;\n this._end = end;\n this._step = step;\n this.size = Math.max(0, Math.ceil((end - start) / step - 1) + 1);\n if (this.size === 0) {\n if (EMPTY_RANGE) {\n return EMPTY_RANGE;\n }\n EMPTY_RANGE = this;\n }\n }\n\n Range.prototype.toString = function() {\n if (this.size === 0) {\n return 'Range []';\n }\n return 'Range [ ' +\n this._start + '...' + this._end +\n (this._step > 1 ? ' by ' + this._step : '') +\n ' ]';\n };\n\n Range.prototype.get = function(index, notSetValue) {\n return this.has(index) ?\n this._start + wrapIndex(this, index) * this._step :\n notSetValue;\n };\n\n Range.prototype.includes = function(searchValue) {\n var possibleIndex = (searchValue - this._start) / this._step;\n return possibleIndex >= 0 &&\n possibleIndex < this.size &&\n possibleIndex === Math.floor(possibleIndex);\n };\n\n Range.prototype.slice = function(begin, end) {\n if (wholeSlice(begin, end, this.size)) {\n return this;\n }\n begin = resolveBegin(begin, this.size);\n end = resolveEnd(end, this.size);\n if (end <= begin) {\n return new Range(0, 0);\n }\n return new Range(this.get(begin, this._end), this.get(end, this._end), this._step);\n };\n\n Range.prototype.indexOf = function(searchValue) {\n var offsetValue = searchValue - this._start;\n if (offsetValue % this._step === 0) {\n var index = offsetValue / this._step;\n if (index >= 0 && index < this.size) {\n return index\n }\n }\n return -1;\n };\n\n Range.prototype.lastIndexOf = function(searchValue) {\n return this.indexOf(searchValue);\n };\n\n Range.prototype.__iterate = function(fn, reverse) {\n var maxIndex = this.size - 1;\n var step = this._step;\n var value = reverse ? this._start + maxIndex * step : this._start;\n for (var ii = 0; ii <= maxIndex; ii++) {\n if (fn(value, ii, this) === false) {\n return ii + 1;\n }\n value += reverse ? -step : step;\n }\n return ii;\n };\n\n Range.prototype.__iterator = function(type, reverse) {\n var maxIndex = this.size - 1;\n var step = this._step;\n var value = reverse ? this._start + maxIndex * step : this._start;\n var ii = 0;\n return new Iterator(function() {\n var v = value;\n value += reverse ? -step : step;\n return ii > maxIndex ? iteratorDone() : iteratorValue(type, ii++, v);\n });\n };\n\n Range.prototype.equals = function(other) {\n return other instanceof Range ?\n this._start === other._start &&\n this._end === other._end &&\n this._step === other._step :\n deepEqual(this, other);\n };\n\n\n var EMPTY_RANGE;\n\n createClass(Collection, Iterable);\n function Collection() {\n throw TypeError('Abstract');\n }\n\n\n createClass(KeyedCollection, Collection);function KeyedCollection() {}\n\n createClass(IndexedCollection, Collection);function IndexedCollection() {}\n\n createClass(SetCollection, Collection);function SetCollection() {}\n\n\n Collection.Keyed = KeyedCollection;\n Collection.Indexed = IndexedCollection;\n Collection.Set = SetCollection;\n\n var imul =\n typeof Math.imul === 'function' && Math.imul(0xffffffff, 2) === -2 ?\n Math.imul :\n function imul(a, b) {\n a = a | 0; // int\n b = b | 0; // int\n var c = a & 0xffff;\n var d = b & 0xffff;\n // Shift by 0 fixes the sign on the high part.\n return (c * d) + ((((a >>> 16) * d + c * (b >>> 16)) << 16) >>> 0) | 0; // int\n };\n\n // v8 has an optimization for storing 31-bit signed numbers.\n // Values which have either 00 or 11 as the high order bits qualify.\n // This function drops the highest order bit in a signed number, maintaining\n // the sign bit.\n function smi(i32) {\n return ((i32 >>> 1) & 0x40000000) | (i32 & 0xBFFFFFFF);\n }\n\n function hash(o) {\n if (o === false || o === null || o === undefined) {\n return 0;\n }\n if (typeof o.valueOf === 'function') {\n o = o.valueOf();\n if (o === false || o === null || o === undefined) {\n return 0;\n }\n }\n if (o === true) {\n return 1;\n }\n var type = typeof o;\n if (type === 'number') {\n var h = o | 0;\n if (h !== o) {\n h ^= o * 0xFFFFFFFF;\n }\n while (o > 0xFFFFFFFF) {\n o /= 0xFFFFFFFF;\n h ^= o;\n }\n return smi(h);\n }\n if (type === 'string') {\n return o.length > STRING_HASH_CACHE_MIN_STRLEN ? cachedHashString(o) : hashString(o);\n }\n if (typeof o.hashCode === 'function') {\n return o.hashCode();\n }\n if (type === 'object') {\n return hashJSObj(o);\n }\n if (typeof o.toString === 'function') {\n return hashString(o.toString());\n }\n throw new Error('Value type ' + type + ' cannot be hashed.');\n }\n\n function cachedHashString(string) {\n var hash = stringHashCache[string];\n if (hash === undefined) {\n hash = hashString(string);\n if (STRING_HASH_CACHE_SIZE === STRING_HASH_CACHE_MAX_SIZE) {\n STRING_HASH_CACHE_SIZE = 0;\n stringHashCache = {};\n }\n STRING_HASH_CACHE_SIZE++;\n stringHashCache[string] = hash;\n }\n return hash;\n }\n\n // http://jsperf.com/hashing-strings\n function hashString(string) {\n // This is the hash from JVM\n // The hash code for a string is computed as\n // s[0] * 31 ^ (n - 1) + s[1] * 31 ^ (n - 2) + ... + s[n - 1],\n // where s[i] is the ith character of the string and n is the length of\n // the string. We \"mod\" the result to make it between 0 (inclusive) and 2^31\n // (exclusive) by dropping high bits.\n var hash = 0;\n for (var ii = 0; ii < string.length; ii++) {\n hash = 31 * hash + string.charCodeAt(ii) | 0;\n }\n return smi(hash);\n }\n\n function hashJSObj(obj) {\n var hash;\n if (usingWeakMap) {\n hash = weakMap.get(obj);\n if (hash !== undefined) {\n return hash;\n }\n }\n\n hash = obj[UID_HASH_KEY];\n if (hash !== undefined) {\n return hash;\n }\n\n if (!canDefineProperty) {\n hash = obj.propertyIsEnumerable && obj.propertyIsEnumerable[UID_HASH_KEY];\n if (hash !== undefined) {\n return hash;\n }\n\n hash = getIENodeHash(obj);\n if (hash !== undefined) {\n return hash;\n }\n }\n\n hash = ++objHashUID;\n if (objHashUID & 0x40000000) {\n objHashUID = 0;\n }\n\n if (usingWeakMap) {\n weakMap.set(obj, hash);\n } else if (isExtensible !== undefined && isExtensible(obj) === false) {\n throw new Error('Non-extensible objects are not allowed as keys.');\n } else if (canDefineProperty) {\n Object.defineProperty(obj, UID_HASH_KEY, {\n 'enumerable': false,\n 'configurable': false,\n 'writable': false,\n 'value': hash\n });\n } else if (obj.propertyIsEnumerable !== undefined &&\n obj.propertyIsEnumerable === obj.constructor.prototype.propertyIsEnumerable) {\n // Since we can't define a non-enumerable property on the object\n // we'll hijack one of the less-used non-enumerable properties to\n // save our hash on it. Since this is a function it will not show up in\n // `JSON.stringify` which is what we want.\n obj.propertyIsEnumerable = function() {\n return this.constructor.prototype.propertyIsEnumerable.apply(this, arguments);\n };\n obj.propertyIsEnumerable[UID_HASH_KEY] = hash;\n } else if (obj.nodeType !== undefined) {\n // At this point we couldn't get the IE `uniqueID` to use as a hash\n // and we couldn't use a non-enumerable property to exploit the\n // dontEnum bug so we simply add the `UID_HASH_KEY` on the node\n // itself.\n obj[UID_HASH_KEY] = hash;\n } else {\n throw new Error('Unable to set a non-enumerable property on object.');\n }\n\n return hash;\n }\n\n // Get references to ES5 object methods.\n var isExtensible = Object.isExtensible;\n\n // True if Object.defineProperty works as expected. IE8 fails this test.\n var canDefineProperty = (function() {\n try {\n Object.defineProperty({}, '@', {});\n return true;\n } catch (e) {\n return false;\n }\n }());\n\n // IE has a `uniqueID` property on DOM nodes. We can construct the hash from it\n // and avoid memory leaks from the IE cloneNode bug.\n function getIENodeHash(node) {\n if (node && node.nodeType > 0) {\n switch (node.nodeType) {\n case 1: // Element\n return node.uniqueID;\n case 9: // Document\n return node.documentElement && node.documentElement.uniqueID;\n }\n }\n }\n\n // If possible, use a WeakMap.\n var usingWeakMap = typeof WeakMap === 'function';\n var weakMap;\n if (usingWeakMap) {\n weakMap = new WeakMap();\n }\n\n var objHashUID = 0;\n\n var UID_HASH_KEY = '__immutablehash__';\n if (typeof Symbol === 'function') {\n UID_HASH_KEY = Symbol(UID_HASH_KEY);\n }\n\n var STRING_HASH_CACHE_MIN_STRLEN = 16;\n var STRING_HASH_CACHE_MAX_SIZE = 255;\n var STRING_HASH_CACHE_SIZE = 0;\n var stringHashCache = {};\n\n function assertNotInfinite(size) {\n invariant(\n size !== Infinity,\n 'Cannot perform this action with an infinite size.'\n );\n }\n\n createClass(Map, KeyedCollection);\n\n // @pragma Construction\n\n function Map(value) {\n return value === null || value === undefined ? emptyMap() :\n isMap(value) && !isOrdered(value) ? value :\n emptyMap().withMutations(function(map ) {\n var iter = KeyedIterable(value);\n assertNotInfinite(iter.size);\n iter.forEach(function(v, k) {return map.set(k, v)});\n });\n }\n\n Map.prototype.toString = function() {\n return this.__toString('Map {', '}');\n };\n\n // @pragma Access\n\n Map.prototype.get = function(k, notSetValue) {\n return this._root ?\n this._root.get(0, undefined, k, notSetValue) :\n notSetValue;\n };\n\n // @pragma Modification\n\n Map.prototype.set = function(k, v) {\n return updateMap(this, k, v);\n };\n\n Map.prototype.setIn = function(keyPath, v) {\n return this.updateIn(keyPath, NOT_SET, function() {return v});\n };\n\n Map.prototype.remove = function(k) {\n return updateMap(this, k, NOT_SET);\n };\n\n Map.prototype.deleteIn = function(keyPath) {\n return this.updateIn(keyPath, function() {return NOT_SET});\n };\n\n Map.prototype.update = function(k, notSetValue, updater) {\n return arguments.length === 1 ?\n k(this) :\n this.updateIn([k], notSetValue, updater);\n };\n\n Map.prototype.updateIn = function(keyPath, notSetValue, updater) {\n if (!updater) {\n updater = notSetValue;\n notSetValue = undefined;\n }\n var updatedValue = updateInDeepMap(\n this,\n forceIterator(keyPath),\n notSetValue,\n updater\n );\n return updatedValue === NOT_SET ? undefined : updatedValue;\n };\n\n Map.prototype.clear = function() {\n if (this.size === 0) {\n return this;\n }\n if (this.__ownerID) {\n this.size = 0;\n this._root = null;\n this.__hash = undefined;\n this.__altered = true;\n return this;\n }\n return emptyMap();\n };\n\n // @pragma Composition\n\n Map.prototype.merge = function(/*...iters*/) {\n return mergeIntoMapWith(this, undefined, arguments);\n };\n\n Map.prototype.mergeWith = function(merger) {var iters = SLICE$0.call(arguments, 1);\n return mergeIntoMapWith(this, merger, iters);\n };\n\n Map.prototype.mergeIn = function(keyPath) {var iters = SLICE$0.call(arguments, 1);\n return this.updateIn(\n keyPath,\n emptyMap(),\n function(m ) {return typeof m.merge === 'function' ?\n m.merge.apply(m, iters) :\n iters[iters.length - 1]}\n );\n };\n\n Map.prototype.mergeDeep = function(/*...iters*/) {\n return mergeIntoMapWith(this, deepMerger, arguments);\n };\n\n Map.prototype.mergeDeepWith = function(merger) {var iters = SLICE$0.call(arguments, 1);\n return mergeIntoMapWith(this, deepMergerWith(merger), iters);\n };\n\n Map.prototype.mergeDeepIn = function(keyPath) {var iters = SLICE$0.call(arguments, 1);\n return this.updateIn(\n keyPath,\n emptyMap(),\n function(m ) {return typeof m.mergeDeep === 'function' ?\n m.mergeDeep.apply(m, iters) :\n iters[iters.length - 1]}\n );\n };\n\n Map.prototype.sort = function(comparator) {\n // Late binding\n return OrderedMap(sortFactory(this, comparator));\n };\n\n Map.prototype.sortBy = function(mapper, comparator) {\n // Late binding\n return OrderedMap(sortFactory(this, comparator, mapper));\n };\n\n // @pragma Mutability\n\n Map.prototype.withMutations = function(fn) {\n var mutable = this.asMutable();\n fn(mutable);\n return mutable.wasAltered() ? mutable.__ensureOwner(this.__ownerID) : this;\n };\n\n Map.prototype.asMutable = function() {\n return this.__ownerID ? this : this.__ensureOwner(new OwnerID());\n };\n\n Map.prototype.asImmutable = function() {\n return this.__ensureOwner();\n };\n\n Map.prototype.wasAltered = function() {\n return this.__altered;\n };\n\n Map.prototype.__iterator = function(type, reverse) {\n return new MapIterator(this, type, reverse);\n };\n\n Map.prototype.__iterate = function(fn, reverse) {var this$0 = this;\n var iterations = 0;\n this._root && this._root.iterate(function(entry ) {\n iterations++;\n return fn(entry[1], entry[0], this$0);\n }, reverse);\n return iterations;\n };\n\n Map.prototype.__ensureOwner = function(ownerID) {\n if (ownerID === this.__ownerID) {\n return this;\n }\n if (!ownerID) {\n this.__ownerID = ownerID;\n this.__altered = false;\n return this;\n }\n return makeMap(this.size, this._root, ownerID, this.__hash);\n };\n\n\n function isMap(maybeMap) {\n return !!(maybeMap && maybeMap[IS_MAP_SENTINEL]);\n }\n\n Map.isMap = isMap;\n\n var IS_MAP_SENTINEL = '@@__IMMUTABLE_MAP__@@';\n\n var MapPrototype = Map.prototype;\n MapPrototype[IS_MAP_SENTINEL] = true;\n MapPrototype[DELETE] = MapPrototype.remove;\n MapPrototype.removeIn = MapPrototype.deleteIn;\n\n\n // #pragma Trie Nodes\n\n\n\n function ArrayMapNode(ownerID, entries) {\n this.ownerID = ownerID;\n this.entries = entries;\n }\n\n ArrayMapNode.prototype.get = function(shift, keyHash, key, notSetValue) {\n var entries = this.entries;\n for (var ii = 0, len = entries.length; ii < len; ii++) {\n if (is(key, entries[ii][0])) {\n return entries[ii][1];\n }\n }\n return notSetValue;\n };\n\n ArrayMapNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {\n var removed = value === NOT_SET;\n\n var entries = this.entries;\n var idx = 0;\n for (var len = entries.length; idx < len; idx++) {\n if (is(key, entries[idx][0])) {\n break;\n }\n }\n var exists = idx < len;\n\n if (exists ? entries[idx][1] === value : removed) {\n return this;\n }\n\n SetRef(didAlter);\n (removed || !exists) && SetRef(didChangeSize);\n\n if (removed && entries.length === 1) {\n return; // undefined\n }\n\n if (!exists && !removed && entries.length >= MAX_ARRAY_MAP_SIZE) {\n return createNodes(ownerID, entries, key, value);\n }\n\n var isEditable = ownerID && ownerID === this.ownerID;\n var newEntries = isEditable ? entries : arrCopy(entries);\n\n if (exists) {\n if (removed) {\n idx === len - 1 ? newEntries.pop() : (newEntries[idx] = newEntries.pop());\n } else {\n newEntries[idx] = [key, value];\n }\n } else {\n newEntries.push([key, value]);\n }\n\n if (isEditable) {\n this.entries = newEntries;\n return this;\n }\n\n return new ArrayMapNode(ownerID, newEntries);\n };\n\n\n\n\n function BitmapIndexedNode(ownerID, bitmap, nodes) {\n this.ownerID = ownerID;\n this.bitmap = bitmap;\n this.nodes = nodes;\n }\n\n BitmapIndexedNode.prototype.get = function(shift, keyHash, key, notSetValue) {\n if (keyHash === undefined) {\n keyHash = hash(key);\n }\n var bit = (1 << ((shift === 0 ? keyHash : keyHash >>> shift) & MASK));\n var bitmap = this.bitmap;\n return (bitmap & bit) === 0 ? notSetValue :\n this.nodes[popCount(bitmap & (bit - 1))].get(shift + SHIFT, keyHash, key, notSetValue);\n };\n\n BitmapIndexedNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {\n if (keyHash === undefined) {\n keyHash = hash(key);\n }\n var keyHashFrag = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;\n var bit = 1 << keyHashFrag;\n var bitmap = this.bitmap;\n var exists = (bitmap & bit) !== 0;\n\n if (!exists && value === NOT_SET) {\n return this;\n }\n\n var idx = popCount(bitmap & (bit - 1));\n var nodes = this.nodes;\n var node = exists ? nodes[idx] : undefined;\n var newNode = updateNode(node, ownerID, shift + SHIFT, keyHash, key, value, didChangeSize, didAlter);\n\n if (newNode === node) {\n return this;\n }\n\n if (!exists && newNode && nodes.length >= MAX_BITMAP_INDEXED_SIZE) {\n return expandNodes(ownerID, nodes, bitmap, keyHashFrag, newNode);\n }\n\n if (exists && !newNode && nodes.length === 2 && isLeafNode(nodes[idx ^ 1])) {\n return nodes[idx ^ 1];\n }\n\n if (exists && newNode && nodes.length === 1 && isLeafNode(newNode)) {\n return newNode;\n }\n\n var isEditable = ownerID && ownerID === this.ownerID;\n var newBitmap = exists ? newNode ? bitmap : bitmap ^ bit : bitmap | bit;\n var newNodes = exists ? newNode ?\n setIn(nodes, idx, newNode, isEditable) :\n spliceOut(nodes, idx, isEditable) :\n spliceIn(nodes, idx, newNode, isEditable);\n\n if (isEditable) {\n this.bitmap = newBitmap;\n this.nodes = newNodes;\n return this;\n }\n\n return new BitmapIndexedNode(ownerID, newBitmap, newNodes);\n };\n\n\n\n\n function HashArrayMapNode(ownerID, count, nodes) {\n this.ownerID = ownerID;\n this.count = count;\n this.nodes = nodes;\n }\n\n HashArrayMapNode.prototype.get = function(shift, keyHash, key, notSetValue) {\n if (keyHash === undefined) {\n keyHash = hash(key);\n }\n var idx = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;\n var node = this.nodes[idx];\n return node ? node.get(shift + SHIFT, keyHash, key, notSetValue) : notSetValue;\n };\n\n HashArrayMapNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {\n if (keyHash === undefined) {\n keyHash = hash(key);\n }\n var idx = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;\n var removed = value === NOT_SET;\n var nodes = this.nodes;\n var node = nodes[idx];\n\n if (removed && !node) {\n return this;\n }\n\n var newNode = updateNode(node, ownerID, shift + SHIFT, keyHash, key, value, didChangeSize, didAlter);\n if (newNode === node) {\n return this;\n }\n\n var newCount = this.count;\n if (!node) {\n newCount++;\n } else if (!newNode) {\n newCount--;\n if (newCount < MIN_HASH_ARRAY_MAP_SIZE) {\n return packNodes(ownerID, nodes, newCount, idx);\n }\n }\n\n var isEditable = ownerID && ownerID === this.ownerID;\n var newNodes = setIn(nodes, idx, newNode, isEditable);\n\n if (isEditable) {\n this.count = newCount;\n this.nodes = newNodes;\n return this;\n }\n\n return new HashArrayMapNode(ownerID, newCount, newNodes);\n };\n\n\n\n\n function HashCollisionNode(ownerID, keyHash, entries) {\n this.ownerID = ownerID;\n this.keyHash = keyHash;\n this.entries = entries;\n }\n\n HashCollisionNode.prototype.get = function(shift, keyHash, key, notSetValue) {\n var entries = this.entries;\n for (var ii = 0, len = entries.length; ii < len; ii++) {\n if (is(key, entries[ii][0])) {\n return entries[ii][1];\n }\n }\n return notSetValue;\n };\n\n HashCollisionNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {\n if (keyHash === undefined) {\n keyHash = hash(key);\n }\n\n var removed = value === NOT_SET;\n\n if (keyHash !== this.keyHash) {\n if (removed) {\n return this;\n }\n SetRef(didAlter);\n SetRef(didChangeSize);\n return mergeIntoNode(this, ownerID, shift, keyHash, [key, value]);\n }\n\n var entries = this.entries;\n var idx = 0;\n for (var len = entries.length; idx < len; idx++) {\n if (is(key, entries[idx][0])) {\n break;\n }\n }\n var exists = idx < len;\n\n if (exists ? entries[idx][1] === value : removed) {\n return this;\n }\n\n SetRef(didAlter);\n (removed || !exists) && SetRef(didChangeSize);\n\n if (removed && len === 2) {\n return new ValueNode(ownerID, this.keyHash, entries[idx ^ 1]);\n }\n\n var isEditable = ownerID && ownerID === this.ownerID;\n var newEntries = isEditable ? entries : arrCopy(entries);\n\n if (exists) {\n if (removed) {\n idx === len - 1 ? newEntries.pop() : (newEntries[idx] = newEntries.pop());\n } else {\n newEntries[idx] = [key, value];\n }\n } else {\n newEntries.push([key, value]);\n }\n\n if (isEditable) {\n this.entries = newEntries;\n return this;\n }\n\n return new HashCollisionNode(ownerID, this.keyHash, newEntries);\n };\n\n\n\n\n function ValueNode(ownerID, keyHash, entry) {\n this.ownerID = ownerID;\n this.keyHash = keyHash;\n this.entry = entry;\n }\n\n ValueNode.prototype.get = function(shift, keyHash, key, notSetValue) {\n return is(key, this.entry[0]) ? this.entry[1] : notSetValue;\n };\n\n ValueNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {\n var removed = value === NOT_SET;\n var keyMatch = is(key, this.entry[0]);\n if (keyMatch ? value === this.entry[1] : removed) {\n return this;\n }\n\n SetRef(didAlter);\n\n if (removed) {\n SetRef(didChangeSize);\n return; // undefined\n }\n\n if (keyMatch) {\n if (ownerID && ownerID === this.ownerID) {\n this.entry[1] = value;\n return this;\n }\n return new ValueNode(ownerID, this.keyHash, [key, value]);\n }\n\n SetRef(didChangeSize);\n return mergeIntoNode(this, ownerID, shift, hash(key), [key, value]);\n };\n\n\n\n // #pragma Iterators\n\n ArrayMapNode.prototype.iterate =\n HashCollisionNode.prototype.iterate = function (fn, reverse) {\n var entries = this.entries;\n for (var ii = 0, maxIndex = entries.length - 1; ii <= maxIndex; ii++) {\n if (fn(entries[reverse ? maxIndex - ii : ii]) === false) {\n return false;\n }\n }\n }\n\n BitmapIndexedNode.prototype.iterate =\n HashArrayMapNode.prototype.iterate = function (fn, reverse) {\n var nodes = this.nodes;\n for (var ii = 0, maxIndex = nodes.length - 1; ii <= maxIndex; ii++) {\n var node = nodes[reverse ? maxIndex - ii : ii];\n if (node && node.iterate(fn, reverse) === false) {\n return false;\n }\n }\n }\n\n ValueNode.prototype.iterate = function (fn, reverse) {\n return fn(this.entry);\n }\n\n createClass(MapIterator, Iterator);\n\n function MapIterator(map, type, reverse) {\n this._type = type;\n this._reverse = reverse;\n this._stack = map._root && mapIteratorFrame(map._root);\n }\n\n MapIterator.prototype.next = function() {\n var type = this._type;\n var stack = this._stack;\n while (stack) {\n var node = stack.node;\n var index = stack.index++;\n var maxIndex;\n if (node.entry) {\n if (index === 0) {\n return mapIteratorValue(type, node.entry);\n }\n } else if (node.entries) {\n maxIndex = node.entries.length - 1;\n if (index <= maxIndex) {\n return mapIteratorValue(type, node.entries[this._reverse ? maxIndex - index : index]);\n }\n } else {\n maxIndex = node.nodes.length - 1;\n if (index <= maxIndex) {\n var subNode = node.nodes[this._reverse ? maxIndex - index : index];\n if (subNode) {\n if (subNode.entry) {\n return mapIteratorValue(type, subNode.entry);\n }\n stack = this._stack = mapIteratorFrame(subNode, stack);\n }\n continue;\n }\n }\n stack = this._stack = this._stack.__prev;\n }\n return iteratorDone();\n };\n\n\n function mapIteratorValue(type, entry) {\n return iteratorValue(type, entry[0], entry[1]);\n }\n\n function mapIteratorFrame(node, prev) {\n return {\n node: node,\n index: 0,\n __prev: prev\n };\n }\n\n function makeMap(size, root, ownerID, hash) {\n var map = Object.create(MapPrototype);\n map.size = size;\n map._root = root;\n map.__ownerID = ownerID;\n map.__hash = hash;\n map.__altered = false;\n return map;\n }\n\n var EMPTY_MAP;\n function emptyMap() {\n return EMPTY_MAP || (EMPTY_MAP = makeMap(0));\n }\n\n function updateMap(map, k, v) {\n var newRoot;\n var newSize;\n if (!map._root) {\n if (v === NOT_SET) {\n return map;\n }\n newSize = 1;\n newRoot = new ArrayMapNode(map.__ownerID, [[k, v]]);\n } else {\n var didChangeSize = MakeRef(CHANGE_LENGTH);\n var didAlter = MakeRef(DID_ALTER);\n newRoot = updateNode(map._root, map.__ownerID, 0, undefined, k, v, didChangeSize, didAlter);\n if (!didAlter.value) {\n return map;\n }\n newSize = map.size + (didChangeSize.value ? v === NOT_SET ? -1 : 1 : 0);\n }\n if (map.__ownerID) {\n map.size = newSize;\n map._root = newRoot;\n map.__hash = undefined;\n map.__altered = true;\n return map;\n }\n return newRoot ? makeMap(newSize, newRoot) : emptyMap();\n }\n\n function updateNode(node, ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {\n if (!node) {\n if (value === NOT_SET) {\n return node;\n }\n SetRef(didAlter);\n SetRef(didChangeSize);\n return new ValueNode(ownerID, keyHash, [key, value]);\n }\n return node.update(ownerID, shift, keyHash, key, value, didChangeSize, didAlter);\n }\n\n function isLeafNode(node) {\n return node.constructor === ValueNode || node.constructor === HashCollisionNode;\n }\n\n function mergeIntoNode(node, ownerID, shift, keyHash, entry) {\n if (node.keyHash === keyHash) {\n return new HashCollisionNode(ownerID, keyHash, [node.entry, entry]);\n }\n\n var idx1 = (shift === 0 ? node.keyHash : node.keyHash >>> shift) & MASK;\n var idx2 = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;\n\n var newNode;\n var nodes = idx1 === idx2 ?\n [mergeIntoNode(node, ownerID, shift + SHIFT, keyHash, entry)] :\n ((newNode = new ValueNode(ownerID, keyHash, entry)), idx1 < idx2 ? [node, newNode] : [newNode, node]);\n\n return new BitmapIndexedNode(ownerID, (1 << idx1) | (1 << idx2), nodes);\n }\n\n function createNodes(ownerID, entries, key, value) {\n if (!ownerID) {\n ownerID = new OwnerID();\n }\n var node = new ValueNode(ownerID, hash(key), [key, value]);\n for (var ii = 0; ii < entries.length; ii++) {\n var entry = entries[ii];\n node = node.update(ownerID, 0, undefined, entry[0], entry[1]);\n }\n return node;\n }\n\n function packNodes(ownerID, nodes, count, excluding) {\n var bitmap = 0;\n var packedII = 0;\n var packedNodes = new Array(count);\n for (var ii = 0, bit = 1, len = nodes.length; ii < len; ii++, bit <<= 1) {\n var node = nodes[ii];\n if (node !== undefined && ii !== excluding) {\n bitmap |= bit;\n packedNodes[packedII++] = node;\n }\n }\n return new BitmapIndexedNode(ownerID, bitmap, packedNodes);\n }\n\n function expandNodes(ownerID, nodes, bitmap, including, node) {\n var count = 0;\n var expandedNodes = new Array(SIZE);\n for (var ii = 0; bitmap !== 0; ii++, bitmap >>>= 1) {\n expandedNodes[ii] = bitmap & 1 ? nodes[count++] : undefined;\n }\n expandedNodes[including] = node;\n return new HashArrayMapNode(ownerID, count + 1, expandedNodes);\n }\n\n function mergeIntoMapWith(map, merger, iterables) {\n var iters = [];\n for (var ii = 0; ii < iterables.length; ii++) {\n var value = iterables[ii];\n var iter = KeyedIterable(value);\n if (!isIterable(value)) {\n iter = iter.map(function(v ) {return fromJS(v)});\n }\n iters.push(iter);\n }\n return mergeIntoCollectionWith(map, merger, iters);\n }\n\n function deepMerger(existing, value, key) {\n return existing && existing.mergeDeep && isIterable(value) ?\n existing.mergeDeep(value) :\n is(existing, value) ? existing : value;\n }\n\n function deepMergerWith(merger) {\n return function(existing, value, key) {\n if (existing && existing.mergeDeepWith && isIterable(value)) {\n return existing.mergeDeepWith(merger, value);\n }\n var nextValue = merger(existing, value, key);\n return is(existing, nextValue) ? existing : nextValue;\n };\n }\n\n function mergeIntoCollectionWith(collection, merger, iters) {\n iters = iters.filter(function(x ) {return x.size !== 0});\n if (iters.length === 0) {\n return collection;\n }\n if (collection.size === 0 && !collection.__ownerID && iters.length === 1) {\n return collection.constructor(iters[0]);\n }\n return collection.withMutations(function(collection ) {\n var mergeIntoMap = merger ?\n function(value, key) {\n collection.update(key, NOT_SET, function(existing )\n {return existing === NOT_SET ? value : merger(existing, value, key)}\n );\n } :\n function(value, key) {\n collection.set(key, value);\n }\n for (var ii = 0; ii < iters.length; ii++) {\n iters[ii].forEach(mergeIntoMap);\n }\n });\n }\n\n function updateInDeepMap(existing, keyPathIter, notSetValue, updater) {\n var isNotSet = existing === NOT_SET;\n var step = keyPathIter.next();\n if (step.done) {\n var existingValue = isNotSet ? notSetValue : existing;\n var newValue = updater(existingValue);\n return newValue === existingValue ? existing : newValue;\n }\n invariant(\n isNotSet || (existing && existing.set),\n 'invalid keyPath'\n );\n var key = step.value;\n var nextExisting = isNotSet ? NOT_SET : existing.get(key, NOT_SET);\n var nextUpdated = updateInDeepMap(\n nextExisting,\n keyPathIter,\n notSetValue,\n updater\n );\n return nextUpdated === nextExisting ? existing :\n nextUpdated === NOT_SET ? existing.remove(key) :\n (isNotSet ? emptyMap() : existing).set(key, nextUpdated);\n }\n\n function popCount(x) {\n x = x - ((x >> 1) & 0x55555555);\n x = (x & 0x33333333) + ((x >> 2) & 0x33333333);\n x = (x + (x >> 4)) & 0x0f0f0f0f;\n x = x + (x >> 8);\n x = x + (x >> 16);\n return x & 0x7f;\n }\n\n function setIn(array, idx, val, canEdit) {\n var newArray = canEdit ? array : arrCopy(array);\n newArray[idx] = val;\n return newArray;\n }\n\n function spliceIn(array, idx, val, canEdit) {\n var newLen = array.length + 1;\n if (canEdit && idx + 1 === newLen) {\n array[idx] = val;\n return array;\n }\n var newArray = new Array(newLen);\n var after = 0;\n for (var ii = 0; ii < newLen; ii++) {\n if (ii === idx) {\n newArray[ii] = val;\n after = -1;\n } else {\n newArray[ii] = array[ii + after];\n }\n }\n return newArray;\n }\n\n function spliceOut(array, idx, canEdit) {\n var newLen = array.length - 1;\n if (canEdit && idx === newLen) {\n array.pop();\n return array;\n }\n var newArray = new Array(newLen);\n var after = 0;\n for (var ii = 0; ii < newLen; ii++) {\n if (ii === idx) {\n after = 1;\n }\n newArray[ii] = array[ii + after];\n }\n return newArray;\n }\n\n var MAX_ARRAY_MAP_SIZE = SIZE / 4;\n var MAX_BITMAP_INDEXED_SIZE = SIZE / 2;\n var MIN_HASH_ARRAY_MAP_SIZE = SIZE / 4;\n\n createClass(List, IndexedCollection);\n\n // @pragma Construction\n\n function List(value) {\n var empty = emptyList();\n if (value === null || value === undefined) {\n return empty;\n }\n if (isList(value)) {\n return value;\n }\n var iter = IndexedIterable(value);\n var size = iter.size;\n if (size === 0) {\n return empty;\n }\n assertNotInfinite(size);\n if (size > 0 && size < SIZE) {\n return makeList(0, size, SHIFT, null, new VNode(iter.toArray()));\n }\n return empty.withMutations(function(list ) {\n list.setSize(size);\n iter.forEach(function(v, i) {return list.set(i, v)});\n });\n }\n\n List.of = function(/*...values*/) {\n return this(arguments);\n };\n\n List.prototype.toString = function() {\n return this.__toString('List [', ']');\n };\n\n // @pragma Access\n\n List.prototype.get = function(index, notSetValue) {\n index = wrapIndex(this, index);\n if (index >= 0 && index < this.size) {\n index += this._origin;\n var node = listNodeFor(this, index);\n return node && node.array[index & MASK];\n }\n return notSetValue;\n };\n\n // @pragma Modification\n\n List.prototype.set = function(index, value) {\n return updateList(this, index, value);\n };\n\n List.prototype.remove = function(index) {\n return !this.has(index) ? this :\n index === 0 ? this.shift() :\n index === this.size - 1 ? this.pop() :\n this.splice(index, 1);\n };\n\n List.prototype.insert = function(index, value) {\n return this.splice(index, 0, value);\n };\n\n List.prototype.clear = function() {\n if (this.size === 0) {\n return this;\n }\n if (this.__ownerID) {\n this.size = this._origin = this._capacity = 0;\n this._level = SHIFT;\n this._root = this._tail = null;\n this.__hash = undefined;\n this.__altered = true;\n return this;\n }\n return emptyList();\n };\n\n List.prototype.push = function(/*...values*/) {\n var values = arguments;\n var oldSize = this.size;\n return this.withMutations(function(list ) {\n setListBounds(list, 0, oldSize + values.length);\n for (var ii = 0; ii < values.length; ii++) {\n list.set(oldSize + ii, values[ii]);\n }\n });\n };\n\n List.prototype.pop = function() {\n return setListBounds(this, 0, -1);\n };\n\n List.prototype.unshift = function(/*...values*/) {\n var values = arguments;\n return this.withMutations(function(list ) {\n setListBounds(list, -values.length);\n for (var ii = 0; ii < values.length; ii++) {\n list.set(ii, values[ii]);\n }\n });\n };\n\n List.prototype.shift = function() {\n return setListBounds(this, 1);\n };\n\n // @pragma Composition\n\n List.prototype.merge = function(/*...iters*/) {\n return mergeIntoListWith(this, undefined, arguments);\n };\n\n List.prototype.mergeWith = function(merger) {var iters = SLICE$0.call(arguments, 1);\n return mergeIntoListWith(this, merger, iters);\n };\n\n List.prototype.mergeDeep = function(/*...iters*/) {\n return mergeIntoListWith(this, deepMerger, arguments);\n };\n\n List.prototype.mergeDeepWith = function(merger) {var iters = SLICE$0.call(arguments, 1);\n return mergeIntoListWith(this, deepMergerWith(merger), iters);\n };\n\n List.prototype.setSize = function(size) {\n return setListBounds(this, 0, size);\n };\n\n // @pragma Iteration\n\n List.prototype.slice = function(begin, end) {\n var size = this.size;\n if (wholeSlice(begin, end, size)) {\n return this;\n }\n return setListBounds(\n this,\n resolveBegin(begin, size),\n resolveEnd(end, size)\n );\n };\n\n List.prototype.__iterator = function(type, reverse) {\n var index = 0;\n var values = iterateList(this, reverse);\n return new Iterator(function() {\n var value = values();\n return value === DONE ?\n iteratorDone() :\n iteratorValue(type, index++, value);\n });\n };\n\n List.prototype.__iterate = function(fn, reverse) {\n var index = 0;\n var values = iterateList(this, reverse);\n var value;\n while ((value = values()) !== DONE) {\n if (fn(value, index++, this) === false) {\n break;\n }\n }\n return index;\n };\n\n List.prototype.__ensureOwner = function(ownerID) {\n if (ownerID === this.__ownerID) {\n return this;\n }\n if (!ownerID) {\n this.__ownerID = ownerID;\n return this;\n }\n return makeList(this._origin, this._capacity, this._level, this._root, this._tail, ownerID, this.__hash);\n };\n\n\n function isList(maybeList) {\n return !!(maybeList && maybeList[IS_LIST_SENTINEL]);\n }\n\n List.isList = isList;\n\n var IS_LIST_SENTINEL = '@@__IMMUTABLE_LIST__@@';\n\n var ListPrototype = List.prototype;\n ListPrototype[IS_LIST_SENTINEL] = true;\n ListPrototype[DELETE] = ListPrototype.remove;\n ListPrototype.setIn = MapPrototype.setIn;\n ListPrototype.deleteIn =\n ListPrototype.removeIn = MapPrototype.removeIn;\n ListPrototype.update = MapPrototype.update;\n ListPrototype.updateIn = MapPrototype.updateIn;\n ListPrototype.mergeIn = MapPrototype.mergeIn;\n ListPrototype.mergeDeepIn = MapPrototype.mergeDeepIn;\n ListPrototype.withMutations = MapPrototype.withMutations;\n ListPrototype.asMutable = MapPrototype.asMutable;\n ListPrototype.asImmutable = MapPrototype.asImmutable;\n ListPrototype.wasAltered = MapPrototype.wasAltered;\n\n\n\n function VNode(array, ownerID) {\n this.array = array;\n this.ownerID = ownerID;\n }\n\n // TODO: seems like these methods are very similar\n\n VNode.prototype.removeBefore = function(ownerID, level, index) {\n if (index === level ? 1 << level : 0 || this.array.length === 0) {\n return this;\n }\n var originIndex = (index >>> level) & MASK;\n if (originIndex >= this.array.length) {\n return new VNode([], ownerID);\n }\n var removingFirst = originIndex === 0;\n var newChild;\n if (level > 0) {\n var oldChild = this.array[originIndex];\n newChild = oldChild && oldChild.removeBefore(ownerID, level - SHIFT, index);\n if (newChild === oldChild && removingFirst) {\n return this;\n }\n }\n if (removingFirst && !newChild) {\n return this;\n }\n var editable = editableVNode(this, ownerID);\n if (!removingFirst) {\n for (var ii = 0; ii < originIndex; ii++) {\n editable.array[ii] = undefined;\n }\n }\n if (newChild) {\n editable.array[originIndex] = newChild;\n }\n return editable;\n };\n\n VNode.prototype.removeAfter = function(ownerID, level, index) {\n if (index === (level ? 1 << level : 0) || this.array.length === 0) {\n return this;\n }\n var sizeIndex = ((index - 1) >>> level) & MASK;\n if (sizeIndex >= this.array.length) {\n return this;\n }\n\n var newChild;\n if (level > 0) {\n var oldChild = this.array[sizeIndex];\n newChild = oldChild && oldChild.removeAfter(ownerID, level - SHIFT, index);\n if (newChild === oldChild && sizeIndex === this.array.length - 1) {\n return this;\n }\n }\n\n var editable = editableVNode(this, ownerID);\n editable.array.splice(sizeIndex + 1);\n if (newChild) {\n editable.array[sizeIndex] = newChild;\n }\n return editable;\n };\n\n\n\n var DONE = {};\n\n function iterateList(list, reverse) {\n var left = list._origin;\n var right = list._capacity;\n var tailPos = getTailOffset(right);\n var tail = list._tail;\n\n return iterateNodeOrLeaf(list._root, list._level, 0);\n\n function iterateNodeOrLeaf(node, level, offset) {\n return level === 0 ?\n iterateLeaf(node, offset) :\n iterateNode(node, level, offset);\n }\n\n function iterateLeaf(node, offset) {\n var array = offset === tailPos ? tail && tail.array : node && node.array;\n var from = offset > left ? 0 : left - offset;\n var to = right - offset;\n if (to > SIZE) {\n to = SIZE;\n }\n return function() {\n if (from === to) {\n return DONE;\n }\n var idx = reverse ? --to : from++;\n return array && array[idx];\n };\n }\n\n function iterateNode(node, level, offset) {\n var values;\n var array = node && node.array;\n var from = offset > left ? 0 : (left - offset) >> level;\n var to = ((right - offset) >> level) + 1;\n if (to > SIZE) {\n to = SIZE;\n }\n return function() {\n do {\n if (values) {\n var value = values();\n if (value !== DONE) {\n return value;\n }\n values = null;\n }\n if (from === to) {\n return DONE;\n }\n var idx = reverse ? --to : from++;\n values = iterateNodeOrLeaf(\n array && array[idx], level - SHIFT, offset + (idx << level)\n );\n } while (true);\n };\n }\n }\n\n function makeList(origin, capacity, level, root, tail, ownerID, hash) {\n var list = Object.create(ListPrototype);\n list.size = capacity - origin;\n list._origin = origin;\n list._capacity = capacity;\n list._level = level;\n list._root = root;\n list._tail = tail;\n list.__ownerID = ownerID;\n list.__hash = hash;\n list.__altered = false;\n return list;\n }\n\n var EMPTY_LIST;\n function emptyList() {\n return EMPTY_LIST || (EMPTY_LIST = makeList(0, 0, SHIFT));\n }\n\n function updateList(list, index, value) {\n index = wrapIndex(list, index);\n\n if (index !== index) {\n return list;\n }\n\n if (index >= list.size || index < 0) {\n return list.withMutations(function(list ) {\n index < 0 ?\n setListBounds(list, index).set(0, value) :\n setListBounds(list, 0, index + 1).set(index, value)\n });\n }\n\n index += list._origin;\n\n var newTail = list._tail;\n var newRoot = list._root;\n var didAlter = MakeRef(DID_ALTER);\n if (index >= getTailOffset(list._capacity)) {\n newTail = updateVNode(newTail, list.__ownerID, 0, index, value, didAlter);\n } else {\n newRoot = updateVNode(newRoot, list.__ownerID, list._level, index, value, didAlter);\n }\n\n if (!didAlter.value) {\n return list;\n }\n\n if (list.__ownerID) {\n list._root = newRoot;\n list._tail = newTail;\n list.__hash = undefined;\n list.__altered = true;\n return list;\n }\n return makeList(list._origin, list._capacity, list._level, newRoot, newTail);\n }\n\n function updateVNode(node, ownerID, level, index, value, didAlter) {\n var idx = (index >>> level) & MASK;\n var nodeHas = node && idx < node.array.length;\n if (!nodeHas && value === undefined) {\n return node;\n }\n\n var newNode;\n\n if (level > 0) {\n var lowerNode = node && node.array[idx];\n var newLowerNode = updateVNode(lowerNode, ownerID, level - SHIFT, index, value, didAlter);\n if (newLowerNode === lowerNode) {\n return node;\n }\n newNode = editableVNode(node, ownerID);\n newNode.array[idx] = newLowerNode;\n return newNode;\n }\n\n if (nodeHas && node.array[idx] === value) {\n return node;\n }\n\n SetRef(didAlter);\n\n newNode = editableVNode(node, ownerID);\n if (value === undefined && idx === newNode.array.length - 1) {\n newNode.array.pop();\n } else {\n newNode.array[idx] = value;\n }\n return newNode;\n }\n\n function editableVNode(node, ownerID) {\n if (ownerID && node && ownerID === node.ownerID) {\n return node;\n }\n return new VNode(node ? node.array.slice() : [], ownerID);\n }\n\n function listNodeFor(list, rawIndex) {\n if (rawIndex >= getTailOffset(list._capacity)) {\n return list._tail;\n }\n if (rawIndex < 1 << (list._level + SHIFT)) {\n var node = list._root;\n var level = list._level;\n while (node && level > 0) {\n node = node.array[(rawIndex >>> level) & MASK];\n level -= SHIFT;\n }\n return node;\n }\n }\n\n function setListBounds(list, begin, end) {\n // Sanitize begin & end using this shorthand for ToInt32(argument)\n // http://www.ecma-international.org/ecma-262/6.0/#sec-toint32\n if (begin !== undefined) {\n begin = begin | 0;\n }\n if (end !== undefined) {\n end = end | 0;\n }\n var owner = list.__ownerID || new OwnerID();\n var oldOrigin = list._origin;\n var oldCapacity = list._capacity;\n var newOrigin = oldOrigin + begin;\n var newCapacity = end === undefined ? oldCapacity : end < 0 ? oldCapacity + end : oldOrigin + end;\n if (newOrigin === oldOrigin && newCapacity === oldCapacity) {\n return list;\n }\n\n // If it's going to end after it starts, it's empty.\n if (newOrigin >= newCapacity) {\n return list.clear();\n }\n\n var newLevel = list._level;\n var newRoot = list._root;\n\n // New origin might need creating a higher root.\n var offsetShift = 0;\n while (newOrigin + offsetShift < 0) {\n newRoot = new VNode(newRoot && newRoot.array.length ? [undefined, newRoot] : [], owner);\n newLevel += SHIFT;\n offsetShift += 1 << newLevel;\n }\n if (offsetShift) {\n newOrigin += offsetShift;\n oldOrigin += offsetShift;\n newCapacity += offsetShift;\n oldCapacity += offsetShift;\n }\n\n var oldTailOffset = getTailOffset(oldCapacity);\n var newTailOffset = getTailOffset(newCapacity);\n\n // New size might need creating a higher root.\n while (newTailOffset >= 1 << (newLevel + SHIFT)) {\n newRoot = new VNode(newRoot && newRoot.array.length ? [newRoot] : [], owner);\n newLevel += SHIFT;\n }\n\n // Locate or create the new tail.\n var oldTail = list._tail;\n var newTail = newTailOffset < oldTailOffset ?\n listNodeFor(list, newCapacity - 1) :\n newTailOffset > oldTailOffset ? new VNode([], owner) : oldTail;\n\n // Merge Tail into tree.\n if (oldTail && newTailOffset > oldTailOffset && newOrigin < oldCapacity && oldTail.array.length) {\n newRoot = editableVNode(newRoot, owner);\n var node = newRoot;\n for (var level = newLevel; level > SHIFT; level -= SHIFT) {\n var idx = (oldTailOffset >>> level) & MASK;\n node = node.array[idx] = editableVNode(node.array[idx], owner);\n }\n node.array[(oldTailOffset >>> SHIFT) & MASK] = oldTail;\n }\n\n // If the size has been reduced, there's a chance the tail needs to be trimmed.\n if (newCapacity < oldCapacity) {\n newTail = newTail && newTail.removeAfter(owner, 0, newCapacity);\n }\n\n // If the new origin is within the tail, then we do not need a root.\n if (newOrigin >= newTailOffset) {\n newOrigin -= newTailOffset;\n newCapacity -= newTailOffset;\n newLevel = SHIFT;\n newRoot = null;\n newTail = newTail && newTail.removeBefore(owner, 0, newOrigin);\n\n // Otherwise, if the root has been trimmed, garbage collect.\n } else if (newOrigin > oldOrigin || newTailOffset < oldTailOffset) {\n offsetShift = 0;\n\n // Identify the new top root node of the subtree of the old root.\n while (newRoot) {\n var beginIndex = (newOrigin >>> newLevel) & MASK;\n if (beginIndex !== (newTailOffset >>> newLevel) & MASK) {\n break;\n }\n if (beginIndex) {\n offsetShift += (1 << newLevel) * beginIndex;\n }\n newLevel -= SHIFT;\n newRoot = newRoot.array[beginIndex];\n }\n\n // Trim the new sides of the new root.\n if (newRoot && newOrigin > oldOrigin) {\n newRoot = newRoot.removeBefore(owner, newLevel, newOrigin - offsetShift);\n }\n if (newRoot && newTailOffset < oldTailOffset) {\n newRoot = newRoot.removeAfter(owner, newLevel, newTailOffset - offsetShift);\n }\n if (offsetShift) {\n newOrigin -= offsetShift;\n newCapacity -= offsetShift;\n }\n }\n\n if (list.__ownerID) {\n list.size = newCapacity - newOrigin;\n list._origin = newOrigin;\n list._capacity = newCapacity;\n list._level = newLevel;\n list._root = newRoot;\n list._tail = newTail;\n list.__hash = undefined;\n list.__altered = true;\n return list;\n }\n return makeList(newOrigin, newCapacity, newLevel, newRoot, newTail);\n }\n\n function mergeIntoListWith(list, merger, iterables) {\n var iters = [];\n var maxSize = 0;\n for (var ii = 0; ii < iterables.length; ii++) {\n var value = iterables[ii];\n var iter = IndexedIterable(value);\n if (iter.size > maxSize) {\n maxSize = iter.size;\n }\n if (!isIterable(value)) {\n iter = iter.map(function(v ) {return fromJS(v)});\n }\n iters.push(iter);\n }\n if (maxSize > list.size) {\n list = list.setSize(maxSize);\n }\n return mergeIntoCollectionWith(list, merger, iters);\n }\n\n function getTailOffset(size) {\n return size < SIZE ? 0 : (((size - 1) >>> SHIFT) << SHIFT);\n }\n\n createClass(OrderedMap, Map);\n\n // @pragma Construction\n\n function OrderedMap(value) {\n return value === null || value === undefined ? emptyOrderedMap() :\n isOrderedMap(value) ? value :\n emptyOrderedMap().withMutations(function(map ) {\n var iter = KeyedIterable(value);\n assertNotInfinite(iter.size);\n iter.forEach(function(v, k) {return map.set(k, v)});\n });\n }\n\n OrderedMap.of = function(/*...values*/) {\n return this(arguments);\n };\n\n OrderedMap.prototype.toString = function() {\n return this.__toString('OrderedMap {', '}');\n };\n\n // @pragma Access\n\n OrderedMap.prototype.get = function(k, notSetValue) {\n var index = this._map.get(k);\n return index !== undefined ? this._list.get(index)[1] : notSetValue;\n };\n\n // @pragma Modification\n\n OrderedMap.prototype.clear = function() {\n if (this.size === 0) {\n return this;\n }\n if (this.__ownerID) {\n this.size = 0;\n this._map.clear();\n this._list.clear();\n return this;\n }\n return emptyOrderedMap();\n };\n\n OrderedMap.prototype.set = function(k, v) {\n return updateOrderedMap(this, k, v);\n };\n\n OrderedMap.prototype.remove = function(k) {\n return updateOrderedMap(this, k, NOT_SET);\n };\n\n OrderedMap.prototype.wasAltered = function() {\n return this._map.wasAltered() || this._list.wasAltered();\n };\n\n OrderedMap.prototype.__iterate = function(fn, reverse) {var this$0 = this;\n return this._list.__iterate(\n function(entry ) {return entry && fn(entry[1], entry[0], this$0)},\n reverse\n );\n };\n\n OrderedMap.prototype.__iterator = function(type, reverse) {\n return this._list.fromEntrySeq().__iterator(type, reverse);\n };\n\n OrderedMap.prototype.__ensureOwner = function(ownerID) {\n if (ownerID === this.__ownerID) {\n return this;\n }\n var newMap = this._map.__ensureOwner(ownerID);\n var newList = this._list.__ensureOwner(ownerID);\n if (!ownerID) {\n this.__ownerID = ownerID;\n this._map = newMap;\n this._list = newList;\n return this;\n }\n return makeOrderedMap(newMap, newList, ownerID, this.__hash);\n };\n\n\n function isOrderedMap(maybeOrderedMap) {\n return isMap(maybeOrderedMap) && isOrdered(maybeOrderedMap);\n }\n\n OrderedMap.isOrderedMap = isOrderedMap;\n\n OrderedMap.prototype[IS_ORDERED_SENTINEL] = true;\n OrderedMap.prototype[DELETE] = OrderedMap.prototype.remove;\n\n\n\n function makeOrderedMap(map, list, ownerID, hash) {\n var omap = Object.create(OrderedMap.prototype);\n omap.size = map ? map.size : 0;\n omap._map = map;\n omap._list = list;\n omap.__ownerID = ownerID;\n omap.__hash = hash;\n return omap;\n }\n\n var EMPTY_ORDERED_MAP;\n function emptyOrderedMap() {\n return EMPTY_ORDERED_MAP || (EMPTY_ORDERED_MAP = makeOrderedMap(emptyMap(), emptyList()));\n }\n\n function updateOrderedMap(omap, k, v) {\n var map = omap._map;\n var list = omap._list;\n var i = map.get(k);\n var has = i !== undefined;\n var newMap;\n var newList;\n if (v === NOT_SET) { // removed\n if (!has) {\n return omap;\n }\n if (list.size >= SIZE && list.size >= map.size * 2) {\n newList = list.filter(function(entry, idx) {return entry !== undefined && i !== idx});\n newMap = newList.toKeyedSeq().map(function(entry ) {return entry[0]}).flip().toMap();\n if (omap.__ownerID) {\n newMap.__ownerID = newList.__ownerID = omap.__ownerID;\n }\n } else {\n newMap = map.remove(k);\n newList = i === list.size - 1 ? list.pop() : list.set(i, undefined);\n }\n } else {\n if (has) {\n if (v === list.get(i)[1]) {\n return omap;\n }\n newMap = map;\n newList = list.set(i, [k, v]);\n } else {\n newMap = map.set(k, list.size);\n newList = list.set(list.size, [k, v]);\n }\n }\n if (omap.__ownerID) {\n omap.size = newMap.size;\n omap._map = newMap;\n omap._list = newList;\n omap.__hash = undefined;\n return omap;\n }\n return makeOrderedMap(newMap, newList);\n }\n\n createClass(ToKeyedSequence, KeyedSeq);\n function ToKeyedSequence(indexed, useKeys) {\n this._iter = indexed;\n this._useKeys = useKeys;\n this.size = indexed.size;\n }\n\n ToKeyedSequence.prototype.get = function(key, notSetValue) {\n return this._iter.get(key, notSetValue);\n };\n\n ToKeyedSequence.prototype.has = function(key) {\n return this._iter.has(key);\n };\n\n ToKeyedSequence.prototype.valueSeq = function() {\n return this._iter.valueSeq();\n };\n\n ToKeyedSequence.prototype.reverse = function() {var this$0 = this;\n var reversedSequence = reverseFactory(this, true);\n if (!this._useKeys) {\n reversedSequence.valueSeq = function() {return this$0._iter.toSeq().reverse()};\n }\n return reversedSequence;\n };\n\n ToKeyedSequence.prototype.map = function(mapper, context) {var this$0 = this;\n var mappedSequence = mapFactory(this, mapper, context);\n if (!this._useKeys) {\n mappedSequence.valueSeq = function() {return this$0._iter.toSeq().map(mapper, context)};\n }\n return mappedSequence;\n };\n\n ToKeyedSequence.prototype.__iterate = function(fn, reverse) {var this$0 = this;\n var ii;\n return this._iter.__iterate(\n this._useKeys ?\n function(v, k) {return fn(v, k, this$0)} :\n ((ii = reverse ? resolveSize(this) : 0),\n function(v ) {return fn(v, reverse ? --ii : ii++, this$0)}),\n reverse\n );\n };\n\n ToKeyedSequence.prototype.__iterator = function(type, reverse) {\n if (this._useKeys) {\n return this._iter.__iterator(type, reverse);\n }\n var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);\n var ii = reverse ? resolveSize(this) : 0;\n return new Iterator(function() {\n var step = iterator.next();\n return step.done ? step :\n iteratorValue(type, reverse ? --ii : ii++, step.value, step);\n });\n };\n\n ToKeyedSequence.prototype[IS_ORDERED_SENTINEL] = true;\n\n\n createClass(ToIndexedSequence, IndexedSeq);\n function ToIndexedSequence(iter) {\n this._iter = iter;\n this.size = iter.size;\n }\n\n ToIndexedSequence.prototype.includes = function(value) {\n return this._iter.includes(value);\n };\n\n ToIndexedSequence.prototype.__iterate = function(fn, reverse) {var this$0 = this;\n var iterations = 0;\n return this._iter.__iterate(function(v ) {return fn(v, iterations++, this$0)}, reverse);\n };\n\n ToIndexedSequence.prototype.__iterator = function(type, reverse) {\n var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);\n var iterations = 0;\n return new Iterator(function() {\n var step = iterator.next();\n return step.done ? step :\n iteratorValue(type, iterations++, step.value, step)\n });\n };\n\n\n\n createClass(ToSetSequence, SetSeq);\n function ToSetSequence(iter) {\n this._iter = iter;\n this.size = iter.size;\n }\n\n ToSetSequence.prototype.has = function(key) {\n return this._iter.includes(key);\n };\n\n ToSetSequence.prototype.__iterate = function(fn, reverse) {var this$0 = this;\n return this._iter.__iterate(function(v ) {return fn(v, v, this$0)}, reverse);\n };\n\n ToSetSequence.prototype.__iterator = function(type, reverse) {\n var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);\n return new Iterator(function() {\n var step = iterator.next();\n return step.done ? step :\n iteratorValue(type, step.value, step.value, step);\n });\n };\n\n\n\n createClass(FromEntriesSequence, KeyedSeq);\n function FromEntriesSequence(entries) {\n this._iter = entries;\n this.size = entries.size;\n }\n\n FromEntriesSequence.prototype.entrySeq = function() {\n return this._iter.toSeq();\n };\n\n FromEntriesSequence.prototype.__iterate = function(fn, reverse) {var this$0 = this;\n return this._iter.__iterate(function(entry ) {\n // Check if entry exists first so array access doesn't throw for holes\n // in the parent iteration.\n if (entry) {\n validateEntry(entry);\n var indexedIterable = isIterable(entry);\n return fn(\n indexedIterable ? entry.get(1) : entry[1],\n indexedIterable ? entry.get(0) : entry[0],\n this$0\n );\n }\n }, reverse);\n };\n\n FromEntriesSequence.prototype.__iterator = function(type, reverse) {\n var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);\n return new Iterator(function() {\n while (true) {\n var step = iterator.next();\n if (step.done) {\n return step;\n }\n var entry = step.value;\n // Check if entry exists first so array access doesn't throw for holes\n // in the parent iteration.\n if (entry) {\n validateEntry(entry);\n var indexedIterable = isIterable(entry);\n return iteratorValue(\n type,\n indexedIterable ? entry.get(0) : entry[0],\n indexedIterable ? entry.get(1) : entry[1],\n step\n );\n }\n }\n });\n };\n\n\n ToIndexedSequence.prototype.cacheResult =\n ToKeyedSequence.prototype.cacheResult =\n ToSetSequence.prototype.cacheResult =\n FromEntriesSequence.prototype.cacheResult =\n cacheResultThrough;\n\n\n function flipFactory(iterable) {\n var flipSequence = makeSequence(iterable);\n flipSequence._iter = iterable;\n flipSequence.size = iterable.size;\n flipSequence.flip = function() {return iterable};\n flipSequence.reverse = function () {\n var reversedSequence = iterable.reverse.apply(this); // super.reverse()\n reversedSequence.flip = function() {return iterable.reverse()};\n return reversedSequence;\n };\n flipSequence.has = function(key ) {return iterable.includes(key)};\n flipSequence.includes = function(key ) {return iterable.has(key)};\n flipSequence.cacheResult = cacheResultThrough;\n flipSequence.__iterateUncached = function (fn, reverse) {var this$0 = this;\n return iterable.__iterate(function(v, k) {return fn(k, v, this$0) !== false}, reverse);\n }\n flipSequence.__iteratorUncached = function(type, reverse) {\n if (type === ITERATE_ENTRIES) {\n var iterator = iterable.__iterator(type, reverse);\n return new Iterator(function() {\n var step = iterator.next();\n if (!step.done) {\n var k = step.value[0];\n step.value[0] = step.value[1];\n step.value[1] = k;\n }\n return step;\n });\n }\n return iterable.__iterator(\n type === ITERATE_VALUES ? ITERATE_KEYS : ITERATE_VALUES,\n reverse\n );\n }\n return flipSequence;\n }\n\n\n function mapFactory(iterable, mapper, context) {\n var mappedSequence = makeSequence(iterable);\n mappedSequence.size = iterable.size;\n mappedSequence.has = function(key ) {return iterable.has(key)};\n mappedSequence.get = function(key, notSetValue) {\n var v = iterable.get(key, NOT_SET);\n return v === NOT_SET ?\n notSetValue :\n mapper.call(context, v, key, iterable);\n };\n mappedSequence.__iterateUncached = function (fn, reverse) {var this$0 = this;\n return iterable.__iterate(\n function(v, k, c) {return fn(mapper.call(context, v, k, c), k, this$0) !== false},\n reverse\n );\n }\n mappedSequence.__iteratorUncached = function (type, reverse) {\n var iterator = iterable.__iterator(ITERATE_ENTRIES, reverse);\n return new Iterator(function() {\n var step = iterator.next();\n if (step.done) {\n return step;\n }\n var entry = step.value;\n var key = entry[0];\n return iteratorValue(\n type,\n key,\n mapper.call(context, entry[1], key, iterable),\n step\n );\n });\n }\n return mappedSequence;\n }\n\n\n function reverseFactory(iterable, useKeys) {\n var reversedSequence = makeSequence(iterable);\n reversedSequence._iter = iterable;\n reversedSequence.size = iterable.size;\n reversedSequence.reverse = function() {return iterable};\n if (iterable.flip) {\n reversedSequence.flip = function () {\n var flipSequence = flipFactory(iterable);\n flipSequence.reverse = function() {return iterable.flip()};\n return flipSequence;\n };\n }\n reversedSequence.get = function(key, notSetValue) \n {return iterable.get(useKeys ? key : -1 - key, notSetValue)};\n reversedSequence.has = function(key )\n {return iterable.has(useKeys ? key : -1 - key)};\n reversedSequence.includes = function(value ) {return iterable.includes(value)};\n reversedSequence.cacheResult = cacheResultThrough;\n reversedSequence.__iterate = function (fn, reverse) {var this$0 = this;\n return iterable.__iterate(function(v, k) {return fn(v, k, this$0)}, !reverse);\n };\n reversedSequence.__iterator =\n function(type, reverse) {return iterable.__iterator(type, !reverse)};\n return reversedSequence;\n }\n\n\n function filterFactory(iterable, predicate, context, useKeys) {\n var filterSequence = makeSequence(iterable);\n if (useKeys) {\n filterSequence.has = function(key ) {\n var v = iterable.get(key, NOT_SET);\n return v !== NOT_SET && !!predicate.call(context, v, key, iterable);\n };\n filterSequence.get = function(key, notSetValue) {\n var v = iterable.get(key, NOT_SET);\n return v !== NOT_SET && predicate.call(context, v, key, iterable) ?\n v : notSetValue;\n };\n }\n filterSequence.__iterateUncached = function (fn, reverse) {var this$0 = this;\n var iterations = 0;\n iterable.__iterate(function(v, k, c) {\n if (predicate.call(context, v, k, c)) {\n iterations++;\n return fn(v, useKeys ? k : iterations - 1, this$0);\n }\n }, reverse);\n return iterations;\n };\n filterSequence.__iteratorUncached = function (type, reverse) {\n var iterator = iterable.__iterator(ITERATE_ENTRIES, reverse);\n var iterations = 0;\n return new Iterator(function() {\n while (true) {\n var step = iterator.next();\n if (step.done) {\n return step;\n }\n var entry = step.value;\n var key = entry[0];\n var value = entry[1];\n if (predicate.call(context, value, key, iterable)) {\n return iteratorValue(type, useKeys ? key : iterations++, value, step);\n }\n }\n });\n }\n return filterSequence;\n }\n\n\n function countByFactory(iterable, grouper, context) {\n var groups = Map().asMutable();\n iterable.__iterate(function(v, k) {\n groups.update(\n grouper.call(context, v, k, iterable),\n 0,\n function(a ) {return a + 1}\n );\n });\n return groups.asImmutable();\n }\n\n\n function groupByFactory(iterable, grouper, context) {\n var isKeyedIter = isKeyed(iterable);\n var groups = (isOrdered(iterable) ? OrderedMap() : Map()).asMutable();\n iterable.__iterate(function(v, k) {\n groups.update(\n grouper.call(context, v, k, iterable),\n function(a ) {return (a = a || [], a.push(isKeyedIter ? [k, v] : v), a)}\n );\n });\n var coerce = iterableClass(iterable);\n return groups.map(function(arr ) {return reify(iterable, coerce(arr))});\n }\n\n\n function sliceFactory(iterable, begin, end, useKeys) {\n var originalSize = iterable.size;\n\n // Sanitize begin & end using this shorthand for ToInt32(argument)\n // http://www.ecma-international.org/ecma-262/6.0/#sec-toint32\n if (begin !== undefined) {\n begin = begin | 0;\n }\n if (end !== undefined) {\n end = end | 0;\n }\n\n if (wholeSlice(begin, end, originalSize)) {\n return iterable;\n }\n\n var resolvedBegin = resolveBegin(begin, originalSize);\n var resolvedEnd = resolveEnd(end, originalSize);\n\n // begin or end will be NaN if they were provided as negative numbers and\n // this iterable's size is unknown. In that case, cache first so there is\n // a known size and these do not resolve to NaN.\n if (resolvedBegin !== resolvedBegin || resolvedEnd !== resolvedEnd) {\n return sliceFactory(iterable.toSeq().cacheResult(), begin, end, useKeys);\n }\n\n // Note: resolvedEnd is undefined when the original sequence's length is\n // unknown and this slice did not supply an end and should contain all\n // elements after resolvedBegin.\n // In that case, resolvedSize will be NaN and sliceSize will remain undefined.\n var resolvedSize = resolvedEnd - resolvedBegin;\n var sliceSize;\n if (resolvedSize === resolvedSize) {\n sliceSize = resolvedSize < 0 ? 0 : resolvedSize;\n }\n\n var sliceSeq = makeSequence(iterable);\n\n // If iterable.size is undefined, the size of the realized sliceSeq is\n // unknown at this point unless the number of items to slice is 0\n sliceSeq.size = sliceSize === 0 ? sliceSize : iterable.size && sliceSize || undefined;\n\n if (!useKeys && isSeq(iterable) && sliceSize >= 0) {\n sliceSeq.get = function (index, notSetValue) {\n index = wrapIndex(this, index);\n return index >= 0 && index < sliceSize ?\n iterable.get(index + resolvedBegin, notSetValue) :\n notSetValue;\n }\n }\n\n sliceSeq.__iterateUncached = function(fn, reverse) {var this$0 = this;\n if (sliceSize === 0) {\n return 0;\n }\n if (reverse) {\n return this.cacheResult().__iterate(fn, reverse);\n }\n var skipped = 0;\n var isSkipping = true;\n var iterations = 0;\n iterable.__iterate(function(v, k) {\n if (!(isSkipping && (isSkipping = skipped++ < resolvedBegin))) {\n iterations++;\n return fn(v, useKeys ? k : iterations - 1, this$0) !== false &&\n iterations !== sliceSize;\n }\n });\n return iterations;\n };\n\n sliceSeq.__iteratorUncached = function(type, reverse) {\n if (sliceSize !== 0 && reverse) {\n return this.cacheResult().__iterator(type, reverse);\n }\n // Don't bother instantiating parent iterator if taking 0.\n var iterator = sliceSize !== 0 && iterable.__iterator(type, reverse);\n var skipped = 0;\n var iterations = 0;\n return new Iterator(function() {\n while (skipped++ < resolvedBegin) {\n iterator.next();\n }\n if (++iterations > sliceSize) {\n return iteratorDone();\n }\n var step = iterator.next();\n if (useKeys || type === ITERATE_VALUES) {\n return step;\n } else if (type === ITERATE_KEYS) {\n return iteratorValue(type, iterations - 1, undefined, step);\n } else {\n return iteratorValue(type, iterations - 1, step.value[1], step);\n }\n });\n }\n\n return sliceSeq;\n }\n\n\n function takeWhileFactory(iterable, predicate, context) {\n var takeSequence = makeSequence(iterable);\n takeSequence.__iterateUncached = function(fn, reverse) {var this$0 = this;\n if (reverse) {\n return this.cacheResult().__iterate(fn, reverse);\n }\n var iterations = 0;\n iterable.__iterate(function(v, k, c) \n {return predicate.call(context, v, k, c) && ++iterations && fn(v, k, this$0)}\n );\n return iterations;\n };\n takeSequence.__iteratorUncached = function(type, reverse) {var this$0 = this;\n if (reverse) {\n return this.cacheResult().__iterator(type, reverse);\n }\n var iterator = iterable.__iterator(ITERATE_ENTRIES, reverse);\n var iterating = true;\n return new Iterator(function() {\n if (!iterating) {\n return iteratorDone();\n }\n var step = iterator.next();\n if (step.done) {\n return step;\n }\n var entry = step.value;\n var k = entry[0];\n var v = entry[1];\n if (!predicate.call(context, v, k, this$0)) {\n iterating = false;\n return iteratorDone();\n }\n return type === ITERATE_ENTRIES ? step :\n iteratorValue(type, k, v, step);\n });\n };\n return takeSequence;\n }\n\n\n function skipWhileFactory(iterable, predicate, context, useKeys) {\n var skipSequence = makeSequence(iterable);\n skipSequence.__iterateUncached = function (fn, reverse) {var this$0 = this;\n if (reverse) {\n return this.cacheResult().__iterate(fn, reverse);\n }\n var isSkipping = true;\n var iterations = 0;\n iterable.__iterate(function(v, k, c) {\n if (!(isSkipping && (isSkipping = predicate.call(context, v, k, c)))) {\n iterations++;\n return fn(v, useKeys ? k : iterations - 1, this$0);\n }\n });\n return iterations;\n };\n skipSequence.__iteratorUncached = function(type, reverse) {var this$0 = this;\n if (reverse) {\n return this.cacheResult().__iterator(type, reverse);\n }\n var iterator = iterable.__iterator(ITERATE_ENTRIES, reverse);\n var skipping = true;\n var iterations = 0;\n return new Iterator(function() {\n var step, k, v;\n do {\n step = iterator.next();\n if (step.done) {\n if (useKeys || type === ITERATE_VALUES) {\n return step;\n } else if (type === ITERATE_KEYS) {\n return iteratorValue(type, iterations++, undefined, step);\n } else {\n return iteratorValue(type, iterations++, step.value[1], step);\n }\n }\n var entry = step.value;\n k = entry[0];\n v = entry[1];\n skipping && (skipping = predicate.call(context, v, k, this$0));\n } while (skipping);\n return type === ITERATE_ENTRIES ? step :\n iteratorValue(type, k, v, step);\n });\n };\n return skipSequence;\n }\n\n\n function concatFactory(iterable, values) {\n var isKeyedIterable = isKeyed(iterable);\n var iters = [iterable].concat(values).map(function(v ) {\n if (!isIterable(v)) {\n v = isKeyedIterable ?\n keyedSeqFromValue(v) :\n indexedSeqFromValue(Array.isArray(v) ? v : [v]);\n } else if (isKeyedIterable) {\n v = KeyedIterable(v);\n }\n return v;\n }).filter(function(v ) {return v.size !== 0});\n\n if (iters.length === 0) {\n return iterable;\n }\n\n if (iters.length === 1) {\n var singleton = iters[0];\n if (singleton === iterable ||\n isKeyedIterable && isKeyed(singleton) ||\n isIndexed(iterable) && isIndexed(singleton)) {\n return singleton;\n }\n }\n\n var concatSeq = new ArraySeq(iters);\n if (isKeyedIterable) {\n concatSeq = concatSeq.toKeyedSeq();\n } else if (!isIndexed(iterable)) {\n concatSeq = concatSeq.toSetSeq();\n }\n concatSeq = concatSeq.flatten(true);\n concatSeq.size = iters.reduce(\n function(sum, seq) {\n if (sum !== undefined) {\n var size = seq.size;\n if (size !== undefined) {\n return sum + size;\n }\n }\n },\n 0\n );\n return concatSeq;\n }\n\n\n function flattenFactory(iterable, depth, useKeys) {\n var flatSequence = makeSequence(iterable);\n flatSequence.__iterateUncached = function(fn, reverse) {\n var iterations = 0;\n var stopped = false;\n function flatDeep(iter, currentDepth) {var this$0 = this;\n iter.__iterate(function(v, k) {\n if ((!depth || currentDepth < depth) && isIterable(v)) {\n flatDeep(v, currentDepth + 1);\n } else if (fn(v, useKeys ? k : iterations++, this$0) === false) {\n stopped = true;\n }\n return !stopped;\n }, reverse);\n }\n flatDeep(iterable, 0);\n return iterations;\n }\n flatSequence.__iteratorUncached = function(type, reverse) {\n var iterator = iterable.__iterator(type, reverse);\n var stack = [];\n var iterations = 0;\n return new Iterator(function() {\n while (iterator) {\n var step = iterator.next();\n if (step.done !== false) {\n iterator = stack.pop();\n continue;\n }\n var v = step.value;\n if (type === ITERATE_ENTRIES) {\n v = v[1];\n }\n if ((!depth || stack.length < depth) && isIterable(v)) {\n stack.push(iterator);\n iterator = v.__iterator(type, reverse);\n } else {\n return useKeys ? step : iteratorValue(type, iterations++, v, step);\n }\n }\n return iteratorDone();\n });\n }\n return flatSequence;\n }\n\n\n function flatMapFactory(iterable, mapper, context) {\n var coerce = iterableClass(iterable);\n return iterable.toSeq().map(\n function(v, k) {return coerce(mapper.call(context, v, k, iterable))}\n ).flatten(true);\n }\n\n\n function interposeFactory(iterable, separator) {\n var interposedSequence = makeSequence(iterable);\n interposedSequence.size = iterable.size && iterable.size * 2 -1;\n interposedSequence.__iterateUncached = function(fn, reverse) {var this$0 = this;\n var iterations = 0;\n iterable.__iterate(function(v, k) \n {return (!iterations || fn(separator, iterations++, this$0) !== false) &&\n fn(v, iterations++, this$0) !== false},\n reverse\n );\n return iterations;\n };\n interposedSequence.__iteratorUncached = function(type, reverse) {\n var iterator = iterable.__iterator(ITERATE_VALUES, reverse);\n var iterations = 0;\n var step;\n return new Iterator(function() {\n if (!step || iterations % 2) {\n step = iterator.next();\n if (step.done) {\n return step;\n }\n }\n return iterations % 2 ?\n iteratorValue(type, iterations++, separator) :\n iteratorValue(type, iterations++, step.value, step);\n });\n };\n return interposedSequence;\n }\n\n\n function sortFactory(iterable, comparator, mapper) {\n if (!comparator) {\n comparator = defaultComparator;\n }\n var isKeyedIterable = isKeyed(iterable);\n var index = 0;\n var entries = iterable.toSeq().map(\n function(v, k) {return [k, v, index++, mapper ? mapper(v, k, iterable) : v]}\n ).toArray();\n entries.sort(function(a, b) {return comparator(a[3], b[3]) || a[2] - b[2]}).forEach(\n isKeyedIterable ?\n function(v, i) { entries[i].length = 2; } :\n function(v, i) { entries[i] = v[1]; }\n );\n return isKeyedIterable ? KeyedSeq(entries) :\n isIndexed(iterable) ? IndexedSeq(entries) :\n SetSeq(entries);\n }\n\n\n function maxFactory(iterable, comparator, mapper) {\n if (!comparator) {\n comparator = defaultComparator;\n }\n if (mapper) {\n var entry = iterable.toSeq()\n .map(function(v, k) {return [v, mapper(v, k, iterable)]})\n .reduce(function(a, b) {return maxCompare(comparator, a[1], b[1]) ? b : a});\n return entry && entry[0];\n } else {\n return iterable.reduce(function(a, b) {return maxCompare(comparator, a, b) ? b : a});\n }\n }\n\n function maxCompare(comparator, a, b) {\n var comp = comparator(b, a);\n // b is considered the new max if the comparator declares them equal, but\n // they are not equal and b is in fact a nullish value.\n return (comp === 0 && b !== a && (b === undefined || b === null || b !== b)) || comp > 0;\n }\n\n\n function zipWithFactory(keyIter, zipper, iters) {\n var zipSequence = makeSequence(keyIter);\n zipSequence.size = new ArraySeq(iters).map(function(i ) {return i.size}).min();\n // Note: this a generic base implementation of __iterate in terms of\n // __iterator which may be more generically useful in the future.\n zipSequence.__iterate = function(fn, reverse) {\n /* generic:\n var iterator = this.__iterator(ITERATE_ENTRIES, reverse);\n var step;\n var iterations = 0;\n while (!(step = iterator.next()).done) {\n iterations++;\n if (fn(step.value[1], step.value[0], this) === false) {\n break;\n }\n }\n return iterations;\n */\n // indexed:\n var iterator = this.__iterator(ITERATE_VALUES, reverse);\n var step;\n var iterations = 0;\n while (!(step = iterator.next()).done) {\n if (fn(step.value, iterations++, this) === false) {\n break;\n }\n }\n return iterations;\n };\n zipSequence.__iteratorUncached = function(type, reverse) {\n var iterators = iters.map(function(i )\n {return (i = Iterable(i), getIterator(reverse ? i.reverse() : i))}\n );\n var iterations = 0;\n var isDone = false;\n return new Iterator(function() {\n var steps;\n if (!isDone) {\n steps = iterators.map(function(i ) {return i.next()});\n isDone = steps.some(function(s ) {return s.done});\n }\n if (isDone) {\n return iteratorDone();\n }\n return iteratorValue(\n type,\n iterations++,\n zipper.apply(null, steps.map(function(s ) {return s.value}))\n );\n });\n };\n return zipSequence\n }\n\n\n // #pragma Helper Functions\n\n function reify(iter, seq) {\n return isSeq(iter) ? seq : iter.constructor(seq);\n }\n\n function validateEntry(entry) {\n if (entry !== Object(entry)) {\n throw new TypeError('Expected [K, V] tuple: ' + entry);\n }\n }\n\n function resolveSize(iter) {\n assertNotInfinite(iter.size);\n return ensureSize(iter);\n }\n\n function iterableClass(iterable) {\n return isKeyed(iterable) ? KeyedIterable :\n isIndexed(iterable) ? IndexedIterable :\n SetIterable;\n }\n\n function makeSequence(iterable) {\n return Object.create(\n (\n isKeyed(iterable) ? KeyedSeq :\n isIndexed(iterable) ? IndexedSeq :\n SetSeq\n ).prototype\n );\n }\n\n function cacheResultThrough() {\n if (this._iter.cacheResult) {\n this._iter.cacheResult();\n this.size = this._iter.size;\n return this;\n } else {\n return Seq.prototype.cacheResult.call(this);\n }\n }\n\n function defaultComparator(a, b) {\n return a > b ? 1 : a < b ? -1 : 0;\n }\n\n function forceIterator(keyPath) {\n var iter = getIterator(keyPath);\n if (!iter) {\n // Array might not be iterable in this environment, so we need a fallback\n // to our wrapped type.\n if (!isArrayLike(keyPath)) {\n throw new TypeError('Expected iterable or array-like: ' + keyPath);\n }\n iter = getIterator(Iterable(keyPath));\n }\n return iter;\n }\n\n createClass(Record, KeyedCollection);\n\n function Record(defaultValues, name) {\n var hasInitialized;\n\n var RecordType = function Record(values) {\n if (values instanceof RecordType) {\n return values;\n }\n if (!(this instanceof RecordType)) {\n return new RecordType(values);\n }\n if (!hasInitialized) {\n hasInitialized = true;\n var keys = Object.keys(defaultValues);\n setProps(RecordTypePrototype, keys);\n RecordTypePrototype.size = keys.length;\n RecordTypePrototype._name = name;\n RecordTypePrototype._keys = keys;\n RecordTypePrototype._defaultValues = defaultValues;\n }\n this._map = Map(values);\n };\n\n var RecordTypePrototype = RecordType.prototype = Object.create(RecordPrototype);\n RecordTypePrototype.constructor = RecordType;\n\n return RecordType;\n }\n\n Record.prototype.toString = function() {\n return this.__toString(recordName(this) + ' {', '}');\n };\n\n // @pragma Access\n\n Record.prototype.has = function(k) {\n return this._defaultValues.hasOwnProperty(k);\n };\n\n Record.prototype.get = function(k, notSetValue) {\n if (!this.has(k)) {\n return notSetValue;\n }\n var defaultVal = this._defaultValues[k];\n return this._map ? this._map.get(k, defaultVal) : defaultVal;\n };\n\n // @pragma Modification\n\n Record.prototype.clear = function() {\n if (this.__ownerID) {\n this._map && this._map.clear();\n return this;\n }\n var RecordType = this.constructor;\n return RecordType._empty || (RecordType._empty = makeRecord(this, emptyMap()));\n };\n\n Record.prototype.set = function(k, v) {\n if (!this.has(k)) {\n throw new Error('Cannot set unknown key \"' + k + '\" on ' + recordName(this));\n }\n var newMap = this._map && this._map.set(k, v);\n if (this.__ownerID || newMap === this._map) {\n return this;\n }\n return makeRecord(this, newMap);\n };\n\n Record.prototype.remove = function(k) {\n if (!this.has(k)) {\n return this;\n }\n var newMap = this._map && this._map.remove(k);\n if (this.__ownerID || newMap === this._map) {\n return this;\n }\n return makeRecord(this, newMap);\n };\n\n Record.prototype.wasAltered = function() {\n return this._map.wasAltered();\n };\n\n Record.prototype.__iterator = function(type, reverse) {var this$0 = this;\n return KeyedIterable(this._defaultValues).map(function(_, k) {return this$0.get(k)}).__iterator(type, reverse);\n };\n\n Record.prototype.__iterate = function(fn, reverse) {var this$0 = this;\n return KeyedIterable(this._defaultValues).map(function(_, k) {return this$0.get(k)}).__iterate(fn, reverse);\n };\n\n Record.prototype.__ensureOwner = function(ownerID) {\n if (ownerID === this.__ownerID) {\n return this;\n }\n var newMap = this._map && this._map.__ensureOwner(ownerID);\n if (!ownerID) {\n this.__ownerID = ownerID;\n this._map = newMap;\n return this;\n }\n return makeRecord(this, newMap, ownerID);\n };\n\n\n var RecordPrototype = Record.prototype;\n RecordPrototype[DELETE] = RecordPrototype.remove;\n RecordPrototype.deleteIn =\n RecordPrototype.removeIn = MapPrototype.removeIn;\n RecordPrototype.merge = MapPrototype.merge;\n RecordPrototype.mergeWith = MapPrototype.mergeWith;\n RecordPrototype.mergeIn = MapPrototype.mergeIn;\n RecordPrototype.mergeDeep = MapPrototype.mergeDeep;\n RecordPrototype.mergeDeepWith = MapPrototype.mergeDeepWith;\n RecordPrototype.mergeDeepIn = MapPrototype.mergeDeepIn;\n RecordPrototype.setIn = MapPrototype.setIn;\n RecordPrototype.update = MapPrototype.update;\n RecordPrototype.updateIn = MapPrototype.updateIn;\n RecordPrototype.withMutations = MapPrototype.withMutations;\n RecordPrototype.asMutable = MapPrototype.asMutable;\n RecordPrototype.asImmutable = MapPrototype.asImmutable;\n\n\n function makeRecord(likeRecord, map, ownerID) {\n var record = Object.create(Object.getPrototypeOf(likeRecord));\n record._map = map;\n record.__ownerID = ownerID;\n return record;\n }\n\n function recordName(record) {\n return record._name || record.constructor.name || 'Record';\n }\n\n function setProps(prototype, names) {\n try {\n names.forEach(setProp.bind(undefined, prototype));\n } catch (error) {\n // Object.defineProperty failed. Probably IE8.\n }\n }\n\n function setProp(prototype, name) {\n Object.defineProperty(prototype, name, {\n get: function() {\n return this.get(name);\n },\n set: function(value) {\n invariant(this.__ownerID, 'Cannot set on an immutable record.');\n this.set(name, value);\n }\n });\n }\n\n createClass(Set, SetCollection);\n\n // @pragma Construction\n\n function Set(value) {\n return value === null || value === undefined ? emptySet() :\n isSet(value) && !isOrdered(value) ? value :\n emptySet().withMutations(function(set ) {\n var iter = SetIterable(value);\n assertNotInfinite(iter.size);\n iter.forEach(function(v ) {return set.add(v)});\n });\n }\n\n Set.of = function(/*...values*/) {\n return this(arguments);\n };\n\n Set.fromKeys = function(value) {\n return this(KeyedIterable(value).keySeq());\n };\n\n Set.prototype.toString = function() {\n return this.__toString('Set {', '}');\n };\n\n // @pragma Access\n\n Set.prototype.has = function(value) {\n return this._map.has(value);\n };\n\n // @pragma Modification\n\n Set.prototype.add = function(value) {\n return updateSet(this, this._map.set(value, true));\n };\n\n Set.prototype.remove = function(value) {\n return updateSet(this, this._map.remove(value));\n };\n\n Set.prototype.clear = function() {\n return updateSet(this, this._map.clear());\n };\n\n // @pragma Composition\n\n Set.prototype.union = function() {var iters = SLICE$0.call(arguments, 0);\n iters = iters.filter(function(x ) {return x.size !== 0});\n if (iters.length === 0) {\n return this;\n }\n if (this.size === 0 && !this.__ownerID && iters.length === 1) {\n return this.constructor(iters[0]);\n }\n return this.withMutations(function(set ) {\n for (var ii = 0; ii < iters.length; ii++) {\n SetIterable(iters[ii]).forEach(function(value ) {return set.add(value)});\n }\n });\n };\n\n Set.prototype.intersect = function() {var iters = SLICE$0.call(arguments, 0);\n if (iters.length === 0) {\n return this;\n }\n iters = iters.map(function(iter ) {return SetIterable(iter)});\n var originalSet = this;\n return this.withMutations(function(set ) {\n originalSet.forEach(function(value ) {\n if (!iters.every(function(iter ) {return iter.includes(value)})) {\n set.remove(value);\n }\n });\n });\n };\n\n Set.prototype.subtract = function() {var iters = SLICE$0.call(arguments, 0);\n if (iters.length === 0) {\n return this;\n }\n iters = iters.map(function(iter ) {return SetIterable(iter)});\n var originalSet = this;\n return this.withMutations(function(set ) {\n originalSet.forEach(function(value ) {\n if (iters.some(function(iter ) {return iter.includes(value)})) {\n set.remove(value);\n }\n });\n });\n };\n\n Set.prototype.merge = function() {\n return this.union.apply(this, arguments);\n };\n\n Set.prototype.mergeWith = function(merger) {var iters = SLICE$0.call(arguments, 1);\n return this.union.apply(this, iters);\n };\n\n Set.prototype.sort = function(comparator) {\n // Late binding\n return OrderedSet(sortFactory(this, comparator));\n };\n\n Set.prototype.sortBy = function(mapper, comparator) {\n // Late binding\n return OrderedSet(sortFactory(this, comparator, mapper));\n };\n\n Set.prototype.wasAltered = function() {\n return this._map.wasAltered();\n };\n\n Set.prototype.__iterate = function(fn, reverse) {var this$0 = this;\n return this._map.__iterate(function(_, k) {return fn(k, k, this$0)}, reverse);\n };\n\n Set.prototype.__iterator = function(type, reverse) {\n return this._map.map(function(_, k) {return k}).__iterator(type, reverse);\n };\n\n Set.prototype.__ensureOwner = function(ownerID) {\n if (ownerID === this.__ownerID) {\n return this;\n }\n var newMap = this._map.__ensureOwner(ownerID);\n if (!ownerID) {\n this.__ownerID = ownerID;\n this._map = newMap;\n return this;\n }\n return this.__make(newMap, ownerID);\n };\n\n\n function isSet(maybeSet) {\n return !!(maybeSet && maybeSet[IS_SET_SENTINEL]);\n }\n\n Set.isSet = isSet;\n\n var IS_SET_SENTINEL = '@@__IMMUTABLE_SET__@@';\n\n var SetPrototype = Set.prototype;\n SetPrototype[IS_SET_SENTINEL] = true;\n SetPrototype[DELETE] = SetPrototype.remove;\n SetPrototype.mergeDeep = SetPrototype.merge;\n SetPrototype.mergeDeepWith = SetPrototype.mergeWith;\n SetPrototype.withMutations = MapPrototype.withMutations;\n SetPrototype.asMutable = MapPrototype.asMutable;\n SetPrototype.asImmutable = MapPrototype.asImmutable;\n\n SetPrototype.__empty = emptySet;\n SetPrototype.__make = makeSet;\n\n function updateSet(set, newMap) {\n if (set.__ownerID) {\n set.size = newMap.size;\n set._map = newMap;\n return set;\n }\n return newMap === set._map ? set :\n newMap.size === 0 ? set.__empty() :\n set.__make(newMap);\n }\n\n function makeSet(map, ownerID) {\n var set = Object.create(SetPrototype);\n set.size = map ? map.size : 0;\n set._map = map;\n set.__ownerID = ownerID;\n return set;\n }\n\n var EMPTY_SET;\n function emptySet() {\n return EMPTY_SET || (EMPTY_SET = makeSet(emptyMap()));\n }\n\n createClass(OrderedSet, Set);\n\n // @pragma Construction\n\n function OrderedSet(value) {\n return value === null || value === undefined ? emptyOrderedSet() :\n isOrderedSet(value) ? value :\n emptyOrderedSet().withMutations(function(set ) {\n var iter = SetIterable(value);\n assertNotInfinite(iter.size);\n iter.forEach(function(v ) {return set.add(v)});\n });\n }\n\n OrderedSet.of = function(/*...values*/) {\n return this(arguments);\n };\n\n OrderedSet.fromKeys = function(value) {\n return this(KeyedIterable(value).keySeq());\n };\n\n OrderedSet.prototype.toString = function() {\n return this.__toString('OrderedSet {', '}');\n };\n\n\n function isOrderedSet(maybeOrderedSet) {\n return isSet(maybeOrderedSet) && isOrdered(maybeOrderedSet);\n }\n\n OrderedSet.isOrderedSet = isOrderedSet;\n\n var OrderedSetPrototype = OrderedSet.prototype;\n OrderedSetPrototype[IS_ORDERED_SENTINEL] = true;\n\n OrderedSetPrototype.__empty = emptyOrderedSet;\n OrderedSetPrototype.__make = makeOrderedSet;\n\n function makeOrderedSet(map, ownerID) {\n var set = Object.create(OrderedSetPrototype);\n set.size = map ? map.size : 0;\n set._map = map;\n set.__ownerID = ownerID;\n return set;\n }\n\n var EMPTY_ORDERED_SET;\n function emptyOrderedSet() {\n return EMPTY_ORDERED_SET || (EMPTY_ORDERED_SET = makeOrderedSet(emptyOrderedMap()));\n }\n\n createClass(Stack, IndexedCollection);\n\n // @pragma Construction\n\n function Stack(value) {\n return value === null || value === undefined ? emptyStack() :\n isStack(value) ? value :\n emptyStack().unshiftAll(value);\n }\n\n Stack.of = function(/*...values*/) {\n return this(arguments);\n };\n\n Stack.prototype.toString = function() {\n return this.__toString('Stack [', ']');\n };\n\n // @pragma Access\n\n Stack.prototype.get = function(index, notSetValue) {\n var head = this._head;\n index = wrapIndex(this, index);\n while (head && index--) {\n head = head.next;\n }\n return head ? head.value : notSetValue;\n };\n\n Stack.prototype.peek = function() {\n return this._head && this._head.value;\n };\n\n // @pragma Modification\n\n Stack.prototype.push = function(/*...values*/) {\n if (arguments.length === 0) {\n return this;\n }\n var newSize = this.size + arguments.length;\n var head = this._head;\n for (var ii = arguments.length - 1; ii >= 0; ii--) {\n head = {\n value: arguments[ii],\n next: head\n };\n }\n if (this.__ownerID) {\n this.size = newSize;\n this._head = head;\n this.__hash = undefined;\n this.__altered = true;\n return this;\n }\n return makeStack(newSize, head);\n };\n\n Stack.prototype.pushAll = function(iter) {\n iter = IndexedIterable(iter);\n if (iter.size === 0) {\n return this;\n }\n assertNotInfinite(iter.size);\n var newSize = this.size;\n var head = this._head;\n iter.reverse().forEach(function(value ) {\n newSize++;\n head = {\n value: value,\n next: head\n };\n });\n if (this.__ownerID) {\n this.size = newSize;\n this._head = head;\n this.__hash = undefined;\n this.__altered = true;\n return this;\n }\n return makeStack(newSize, head);\n };\n\n Stack.prototype.pop = function() {\n return this.slice(1);\n };\n\n Stack.prototype.unshift = function(/*...values*/) {\n return this.push.apply(this, arguments);\n };\n\n Stack.prototype.unshiftAll = function(iter) {\n return this.pushAll(iter);\n };\n\n Stack.prototype.shift = function() {\n return this.pop.apply(this, arguments);\n };\n\n Stack.prototype.clear = function() {\n if (this.size === 0) {\n return this;\n }\n if (this.__ownerID) {\n this.size = 0;\n this._head = undefined;\n this.__hash = undefined;\n this.__altered = true;\n return this;\n }\n return emptyStack();\n };\n\n Stack.prototype.slice = function(begin, end) {\n if (wholeSlice(begin, end, this.size)) {\n return this;\n }\n var resolvedBegin = resolveBegin(begin, this.size);\n var resolvedEnd = resolveEnd(end, this.size);\n if (resolvedEnd !== this.size) {\n // super.slice(begin, end);\n return IndexedCollection.prototype.slice.call(this, begin, end);\n }\n var newSize = this.size - resolvedBegin;\n var head = this._head;\n while (resolvedBegin--) {\n head = head.next;\n }\n if (this.__ownerID) {\n this.size = newSize;\n this._head = head;\n this.__hash = undefined;\n this.__altered = true;\n return this;\n }\n return makeStack(newSize, head);\n };\n\n // @pragma Mutability\n\n Stack.prototype.__ensureOwner = function(ownerID) {\n if (ownerID === this.__ownerID) {\n return this;\n }\n if (!ownerID) {\n this.__ownerID = ownerID;\n this.__altered = false;\n return this;\n }\n return makeStack(this.size, this._head, ownerID, this.__hash);\n };\n\n // @pragma Iteration\n\n Stack.prototype.__iterate = function(fn, reverse) {\n if (reverse) {\n return this.reverse().__iterate(fn);\n }\n var iterations = 0;\n var node = this._head;\n while (node) {\n if (fn(node.value, iterations++, this) === false) {\n break;\n }\n node = node.next;\n }\n return iterations;\n };\n\n Stack.prototype.__iterator = function(type, reverse) {\n if (reverse) {\n return this.reverse().__iterator(type);\n }\n var iterations = 0;\n var node = this._head;\n return new Iterator(function() {\n if (node) {\n var value = node.value;\n node = node.next;\n return iteratorValue(type, iterations++, value);\n }\n return iteratorDone();\n });\n };\n\n\n function isStack(maybeStack) {\n return !!(maybeStack && maybeStack[IS_STACK_SENTINEL]);\n }\n\n Stack.isStack = isStack;\n\n var IS_STACK_SENTINEL = '@@__IMMUTABLE_STACK__@@';\n\n var StackPrototype = Stack.prototype;\n StackPrototype[IS_STACK_SENTINEL] = true;\n StackPrototype.withMutations = MapPrototype.withMutations;\n StackPrototype.asMutable = MapPrototype.asMutable;\n StackPrototype.asImmutable = MapPrototype.asImmutable;\n StackPrototype.wasAltered = MapPrototype.wasAltered;\n\n\n function makeStack(size, head, ownerID, hash) {\n var map = Object.create(StackPrototype);\n map.size = size;\n map._head = head;\n map.__ownerID = ownerID;\n map.__hash = hash;\n map.__altered = false;\n return map;\n }\n\n var EMPTY_STACK;\n function emptyStack() {\n return EMPTY_STACK || (EMPTY_STACK = makeStack(0));\n }\n\n /**\n * Contributes additional methods to a constructor\n */\n function mixin(ctor, methods) {\n var keyCopier = function(key ) { ctor.prototype[key] = methods[key]; };\n Object.keys(methods).forEach(keyCopier);\n Object.getOwnPropertySymbols &&\n Object.getOwnPropertySymbols(methods).forEach(keyCopier);\n return ctor;\n }\n\n Iterable.Iterator = Iterator;\n\n mixin(Iterable, {\n\n // ### Conversion to other types\n\n toArray: function() {\n assertNotInfinite(this.size);\n var array = new Array(this.size || 0);\n this.valueSeq().__iterate(function(v, i) { array[i] = v; });\n return array;\n },\n\n toIndexedSeq: function() {\n return new ToIndexedSequence(this);\n },\n\n toJS: function() {\n return this.toSeq().map(\n function(value ) {return value && typeof value.toJS === 'function' ? value.toJS() : value}\n ).__toJS();\n },\n\n toJSON: function() {\n return this.toSeq().map(\n function(value ) {return value && typeof value.toJSON === 'function' ? value.toJSON() : value}\n ).__toJS();\n },\n\n toKeyedSeq: function() {\n return new ToKeyedSequence(this, true);\n },\n\n toMap: function() {\n // Use Late Binding here to solve the circular dependency.\n return Map(this.toKeyedSeq());\n },\n\n toObject: function() {\n assertNotInfinite(this.size);\n var object = {};\n this.__iterate(function(v, k) { object[k] = v; });\n return object;\n },\n\n toOrderedMap: function() {\n // Use Late Binding here to solve the circular dependency.\n return OrderedMap(this.toKeyedSeq());\n },\n\n toOrderedSet: function() {\n // Use Late Binding here to solve the circular dependency.\n return OrderedSet(isKeyed(this) ? this.valueSeq() : this);\n },\n\n toSet: function() {\n // Use Late Binding here to solve the circular dependency.\n return Set(isKeyed(this) ? this.valueSeq() : this);\n },\n\n toSetSeq: function() {\n return new ToSetSequence(this);\n },\n\n toSeq: function() {\n return isIndexed(this) ? this.toIndexedSeq() :\n isKeyed(this) ? this.toKeyedSeq() :\n this.toSetSeq();\n },\n\n toStack: function() {\n // Use Late Binding here to solve the circular dependency.\n return Stack(isKeyed(this) ? this.valueSeq() : this);\n },\n\n toList: function() {\n // Use Late Binding here to solve the circular dependency.\n return List(isKeyed(this) ? this.valueSeq() : this);\n },\n\n\n // ### Common JavaScript methods and properties\n\n toString: function() {\n return '[Iterable]';\n },\n\n __toString: function(head, tail) {\n if (this.size === 0) {\n return head + tail;\n }\n return head + ' ' + this.toSeq().map(this.__toStringMapper).join(', ') + ' ' + tail;\n },\n\n\n // ### ES6 Collection methods (ES6 Array and Map)\n\n concat: function() {var values = SLICE$0.call(arguments, 0);\n return reify(this, concatFactory(this, values));\n },\n\n includes: function(searchValue) {\n return this.some(function(value ) {return is(value, searchValue)});\n },\n\n entries: function() {\n return this.__iterator(ITERATE_ENTRIES);\n },\n\n every: function(predicate, context) {\n assertNotInfinite(this.size);\n var returnValue = true;\n this.__iterate(function(v, k, c) {\n if (!predicate.call(context, v, k, c)) {\n returnValue = false;\n return false;\n }\n });\n return returnValue;\n },\n\n filter: function(predicate, context) {\n return reify(this, filterFactory(this, predicate, context, true));\n },\n\n find: function(predicate, context, notSetValue) {\n var entry = this.findEntry(predicate, context);\n return entry ? entry[1] : notSetValue;\n },\n\n findEntry: function(predicate, context) {\n var found;\n this.__iterate(function(v, k, c) {\n if (predicate.call(context, v, k, c)) {\n found = [k, v];\n return false;\n }\n });\n return found;\n },\n\n findLastEntry: function(predicate, context) {\n return this.toSeq().reverse().findEntry(predicate, context);\n },\n\n forEach: function(sideEffect, context) {\n assertNotInfinite(this.size);\n return this.__iterate(context ? sideEffect.bind(context) : sideEffect);\n },\n\n join: function(separator) {\n assertNotInfinite(this.size);\n separator = separator !== undefined ? '' + separator : ',';\n var joined = '';\n var isFirst = true;\n this.__iterate(function(v ) {\n isFirst ? (isFirst = false) : (joined += separator);\n joined += v !== null && v !== undefined ? v.toString() : '';\n });\n return joined;\n },\n\n keys: function() {\n return this.__iterator(ITERATE_KEYS);\n },\n\n map: function(mapper, context) {\n return reify(this, mapFactory(this, mapper, context));\n },\n\n reduce: function(reducer, initialReduction, context) {\n assertNotInfinite(this.size);\n var reduction;\n var useFirst;\n if (arguments.length < 2) {\n useFirst = true;\n } else {\n reduction = initialReduction;\n }\n this.__iterate(function(v, k, c) {\n if (useFirst) {\n useFirst = false;\n reduction = v;\n } else {\n reduction = reducer.call(context, reduction, v, k, c);\n }\n });\n return reduction;\n },\n\n reduceRight: function(reducer, initialReduction, context) {\n var reversed = this.toKeyedSeq().reverse();\n return reversed.reduce.apply(reversed, arguments);\n },\n\n reverse: function() {\n return reify(this, reverseFactory(this, true));\n },\n\n slice: function(begin, end) {\n return reify(this, sliceFactory(this, begin, end, true));\n },\n\n some: function(predicate, context) {\n return !this.every(not(predicate), context);\n },\n\n sort: function(comparator) {\n return reify(this, sortFactory(this, comparator));\n },\n\n values: function() {\n return this.__iterator(ITERATE_VALUES);\n },\n\n\n // ### More sequential methods\n\n butLast: function() {\n return this.slice(0, -1);\n },\n\n isEmpty: function() {\n return this.size !== undefined ? this.size === 0 : !this.some(function() {return true});\n },\n\n count: function(predicate, context) {\n return ensureSize(\n predicate ? this.toSeq().filter(predicate, context) : this\n );\n },\n\n countBy: function(grouper, context) {\n return countByFactory(this, grouper, context);\n },\n\n equals: function(other) {\n return deepEqual(this, other);\n },\n\n entrySeq: function() {\n var iterable = this;\n if (iterable._cache) {\n // We cache as an entries array, so we can just return the cache!\n return new ArraySeq(iterable._cache);\n }\n var entriesSequence = iterable.toSeq().map(entryMapper).toIndexedSeq();\n entriesSequence.fromEntrySeq = function() {return iterable.toSeq()};\n return entriesSequence;\n },\n\n filterNot: function(predicate, context) {\n return this.filter(not(predicate), context);\n },\n\n findLast: function(predicate, context, notSetValue) {\n return this.toKeyedSeq().reverse().find(predicate, context, notSetValue);\n },\n\n first: function() {\n return this.find(returnTrue);\n },\n\n flatMap: function(mapper, context) {\n return reify(this, flatMapFactory(this, mapper, context));\n },\n\n flatten: function(depth) {\n return reify(this, flattenFactory(this, depth, true));\n },\n\n fromEntrySeq: function() {\n return new FromEntriesSequence(this);\n },\n\n get: function(searchKey, notSetValue) {\n return this.find(function(_, key) {return is(key, searchKey)}, undefined, notSetValue);\n },\n\n getIn: function(searchKeyPath, notSetValue) {\n var nested = this;\n // Note: in an ES6 environment, we would prefer:\n // for (var key of searchKeyPath) {\n var iter = forceIterator(searchKeyPath);\n var step;\n while (!(step = iter.next()).done) {\n var key = step.value;\n nested = nested && nested.get ? nested.get(key, NOT_SET) : NOT_SET;\n if (nested === NOT_SET) {\n return notSetValue;\n }\n }\n return nested;\n },\n\n groupBy: function(grouper, context) {\n return groupByFactory(this, grouper, context);\n },\n\n has: function(searchKey) {\n return this.get(searchKey, NOT_SET) !== NOT_SET;\n },\n\n hasIn: function(searchKeyPath) {\n return this.getIn(searchKeyPath, NOT_SET) !== NOT_SET;\n },\n\n isSubset: function(iter) {\n iter = typeof iter.includes === 'function' ? iter : Iterable(iter);\n return this.every(function(value ) {return iter.includes(value)});\n },\n\n isSuperset: function(iter) {\n iter = typeof iter.isSubset === 'function' ? iter : Iterable(iter);\n return iter.isSubset(this);\n },\n\n keySeq: function() {\n return this.toSeq().map(keyMapper).toIndexedSeq();\n },\n\n last: function() {\n return this.toSeq().reverse().first();\n },\n\n max: function(comparator) {\n return maxFactory(this, comparator);\n },\n\n maxBy: function(mapper, comparator) {\n return maxFactory(this, comparator, mapper);\n },\n\n min: function(comparator) {\n return maxFactory(this, comparator ? neg(comparator) : defaultNegComparator);\n },\n\n minBy: function(mapper, comparator) {\n return maxFactory(this, comparator ? neg(comparator) : defaultNegComparator, mapper);\n },\n\n rest: function() {\n return this.slice(1);\n },\n\n skip: function(amount) {\n return this.slice(Math.max(0, amount));\n },\n\n skipLast: function(amount) {\n return reify(this, this.toSeq().reverse().skip(amount).reverse());\n },\n\n skipWhile: function(predicate, context) {\n return reify(this, skipWhileFactory(this, predicate, context, true));\n },\n\n skipUntil: function(predicate, context) {\n return this.skipWhile(not(predicate), context);\n },\n\n sortBy: function(mapper, comparator) {\n return reify(this, sortFactory(this, comparator, mapper));\n },\n\n take: function(amount) {\n return this.slice(0, Math.max(0, amount));\n },\n\n takeLast: function(amount) {\n return reify(this, this.toSeq().reverse().take(amount).reverse());\n },\n\n takeWhile: function(predicate, context) {\n return reify(this, takeWhileFactory(this, predicate, context));\n },\n\n takeUntil: function(predicate, context) {\n return this.takeWhile(not(predicate), context);\n },\n\n valueSeq: function() {\n return this.toIndexedSeq();\n },\n\n\n // ### Hashable Object\n\n hashCode: function() {\n return this.__hash || (this.__hash = hashIterable(this));\n }\n\n\n // ### Internal\n\n // abstract __iterate(fn, reverse)\n\n // abstract __iterator(type, reverse)\n });\n\n // var IS_ITERABLE_SENTINEL = '@@__IMMUTABLE_ITERABLE__@@';\n // var IS_KEYED_SENTINEL = '@@__IMMUTABLE_KEYED__@@';\n // var IS_INDEXED_SENTINEL = '@@__IMMUTABLE_INDEXED__@@';\n // var IS_ORDERED_SENTINEL = '@@__IMMUTABLE_ORDERED__@@';\n\n var IterablePrototype = Iterable.prototype;\n IterablePrototype[IS_ITERABLE_SENTINEL] = true;\n IterablePrototype[ITERATOR_SYMBOL] = IterablePrototype.values;\n IterablePrototype.__toJS = IterablePrototype.toArray;\n IterablePrototype.__toStringMapper = quoteString;\n IterablePrototype.inspect =\n IterablePrototype.toSource = function() { return this.toString(); };\n IterablePrototype.chain = IterablePrototype.flatMap;\n IterablePrototype.contains = IterablePrototype.includes;\n\n // Temporary warning about using length\n (function () {\n try {\n Object.defineProperty(IterablePrototype, 'length', {\n get: function () {\n if (!Iterable.noLengthWarning) {\n var stack;\n try {\n throw new Error();\n } catch (error) {\n stack = error.stack;\n }\n if (stack.indexOf('_wrapObject') === -1) {\n console && console.warn && console.warn(\n 'iterable.length has been deprecated, '+\n 'use iterable.size or iterable.count(). '+\n 'This warning will become a silent error in a future version. ' +\n stack\n );\n return this.size;\n }\n }\n }\n });\n } catch (e) {}\n })();\n\n\n\n mixin(KeyedIterable, {\n\n // ### More sequential methods\n\n flip: function() {\n return reify(this, flipFactory(this));\n },\n\n findKey: function(predicate, context) {\n var entry = this.findEntry(predicate, context);\n return entry && entry[0];\n },\n\n findLastKey: function(predicate, context) {\n return this.toSeq().reverse().findKey(predicate, context);\n },\n\n keyOf: function(searchValue) {\n return this.findKey(function(value ) {return is(value, searchValue)});\n },\n\n lastKeyOf: function(searchValue) {\n return this.findLastKey(function(value ) {return is(value, searchValue)});\n },\n\n mapEntries: function(mapper, context) {var this$0 = this;\n var iterations = 0;\n return reify(this,\n this.toSeq().map(\n function(v, k) {return mapper.call(context, [k, v], iterations++, this$0)}\n ).fromEntrySeq()\n );\n },\n\n mapKeys: function(mapper, context) {var this$0 = this;\n return reify(this,\n this.toSeq().flip().map(\n function(k, v) {return mapper.call(context, k, v, this$0)}\n ).flip()\n );\n }\n\n });\n\n var KeyedIterablePrototype = KeyedIterable.prototype;\n KeyedIterablePrototype[IS_KEYED_SENTINEL] = true;\n KeyedIterablePrototype[ITERATOR_SYMBOL] = IterablePrototype.entries;\n KeyedIterablePrototype.__toJS = IterablePrototype.toObject;\n KeyedIterablePrototype.__toStringMapper = function(v, k) {return JSON.stringify(k) + ': ' + quoteString(v)};\n\n\n\n mixin(IndexedIterable, {\n\n // ### Conversion to other types\n\n toKeyedSeq: function() {\n return new ToKeyedSequence(this, false);\n },\n\n\n // ### ES6 Collection methods (ES6 Array and Map)\n\n filter: function(predicate, context) {\n return reify(this, filterFactory(this, predicate, context, false));\n },\n\n findIndex: function(predicate, context) {\n var entry = this.findEntry(predicate, context);\n return entry ? entry[0] : -1;\n },\n\n indexOf: function(searchValue) {\n var key = this.toKeyedSeq().keyOf(searchValue);\n return key === undefined ? -1 : key;\n },\n\n lastIndexOf: function(searchValue) {\n var key = this.toKeyedSeq().reverse().keyOf(searchValue);\n return key === undefined ? -1 : key;\n\n // var index =\n // return this.toSeq().reverse().indexOf(searchValue);\n },\n\n reverse: function() {\n return reify(this, reverseFactory(this, false));\n },\n\n slice: function(begin, end) {\n return reify(this, sliceFactory(this, begin, end, false));\n },\n\n splice: function(index, removeNum /*, ...values*/) {\n var numArgs = arguments.length;\n removeNum = Math.max(removeNum | 0, 0);\n if (numArgs === 0 || (numArgs === 2 && !removeNum)) {\n return this;\n }\n // If index is negative, it should resolve relative to the size of the\n // collection. However size may be expensive to compute if not cached, so\n // only call count() if the number is in fact negative.\n index = resolveBegin(index, index < 0 ? this.count() : this.size);\n var spliced = this.slice(0, index);\n return reify(\n this,\n numArgs === 1 ?\n spliced :\n spliced.concat(arrCopy(arguments, 2), this.slice(index + removeNum))\n );\n },\n\n\n // ### More collection methods\n\n findLastIndex: function(predicate, context) {\n var key = this.toKeyedSeq().findLastKey(predicate, context);\n return key === undefined ? -1 : key;\n },\n\n first: function() {\n return this.get(0);\n },\n\n flatten: function(depth) {\n return reify(this, flattenFactory(this, depth, false));\n },\n\n get: function(index, notSetValue) {\n index = wrapIndex(this, index);\n return (index < 0 || (this.size === Infinity ||\n (this.size !== undefined && index > this.size))) ?\n notSetValue :\n this.find(function(_, key) {return key === index}, undefined, notSetValue);\n },\n\n has: function(index) {\n index = wrapIndex(this, index);\n return index >= 0 && (this.size !== undefined ?\n this.size === Infinity || index < this.size :\n this.indexOf(index) !== -1\n );\n },\n\n interpose: function(separator) {\n return reify(this, interposeFactory(this, separator));\n },\n\n interleave: function(/*...iterables*/) {\n var iterables = [this].concat(arrCopy(arguments));\n var zipped = zipWithFactory(this.toSeq(), IndexedSeq.of, iterables);\n var interleaved = zipped.flatten(true);\n if (zipped.size) {\n interleaved.size = zipped.size * iterables.length;\n }\n return reify(this, interleaved);\n },\n\n last: function() {\n return this.get(-1);\n },\n\n skipWhile: function(predicate, context) {\n return reify(this, skipWhileFactory(this, predicate, context, false));\n },\n\n zip: function(/*, ...iterables */) {\n var iterables = [this].concat(arrCopy(arguments));\n return reify(this, zipWithFactory(this, defaultZipper, iterables));\n },\n\n zipWith: function(zipper/*, ...iterables */) {\n var iterables = arrCopy(arguments);\n iterables[0] = this;\n return reify(this, zipWithFactory(this, zipper, iterables));\n }\n\n });\n\n IndexedIterable.prototype[IS_INDEXED_SENTINEL] = true;\n IndexedIterable.prototype[IS_ORDERED_SENTINEL] = true;\n\n\n\n mixin(SetIterable, {\n\n // ### ES6 Collection methods (ES6 Array and Map)\n\n get: function(value, notSetValue) {\n return this.has(value) ? value : notSetValue;\n },\n\n includes: function(value) {\n return this.has(value);\n },\n\n\n // ### More sequential methods\n\n keySeq: function() {\n return this.valueSeq();\n }\n\n });\n\n SetIterable.prototype.has = IterablePrototype.includes;\n\n\n // Mixin subclasses\n\n mixin(KeyedSeq, KeyedIterable.prototype);\n mixin(IndexedSeq, IndexedIterable.prototype);\n mixin(SetSeq, SetIterable.prototype);\n\n mixin(KeyedCollection, KeyedIterable.prototype);\n mixin(IndexedCollection, IndexedIterable.prototype);\n mixin(SetCollection, SetIterable.prototype);\n\n\n // #pragma Helper functions\n\n function keyMapper(v, k) {\n return k;\n }\n\n function entryMapper(v, k) {\n return [k, v];\n }\n\n function not(predicate) {\n return function() {\n return !predicate.apply(this, arguments);\n }\n }\n\n function neg(predicate) {\n return function() {\n return -predicate.apply(this, arguments);\n }\n }\n\n function quoteString(value) {\n return typeof value === 'string' ? JSON.stringify(value) : value;\n }\n\n function defaultZipper() {\n return arrCopy(arguments);\n }\n\n function defaultNegComparator(a, b) {\n return a < b ? 1 : a > b ? -1 : 0;\n }\n\n function hashIterable(iterable) {\n if (iterable.size === Infinity) {\n return 0;\n }\n var ordered = isOrdered(iterable);\n var keyed = isKeyed(iterable);\n var h = ordered ? 1 : 0;\n var size = iterable.__iterate(\n keyed ?\n ordered ?\n function(v, k) { h = 31 * h + hashMerge(hash(v), hash(k)) | 0; } :\n function(v, k) { h = h + hashMerge(hash(v), hash(k)) | 0; } :\n ordered ?\n function(v ) { h = 31 * h + hash(v) | 0; } :\n function(v ) { h = h + hash(v) | 0; }\n );\n return murmurHashOfSize(size, h);\n }\n\n function murmurHashOfSize(size, h) {\n h = imul(h, 0xCC9E2D51);\n h = imul(h << 15 | h >>> -15, 0x1B873593);\n h = imul(h << 13 | h >>> -13, 5);\n h = (h + 0xE6546B64 | 0) ^ size;\n h = imul(h ^ h >>> 16, 0x85EBCA6B);\n h = imul(h ^ h >>> 13, 0xC2B2AE35);\n h = smi(h ^ h >>> 16);\n return h;\n }\n\n function hashMerge(a, b) {\n return a ^ b + 0x9E3779B9 + (a << 6) + (a >> 2) | 0; // int\n }\n\n var Immutable = {\n\n Iterable: Iterable,\n\n Seq: Seq,\n Collection: Collection,\n Map: Map,\n OrderedMap: OrderedMap,\n List: List,\n Stack: Stack,\n Set: Set,\n OrderedSet: OrderedSet,\n\n Record: Record,\n Range: Range,\n Repeat: Repeat,\n\n is: is,\n fromJS: fromJS\n\n };\n\n return Immutable;\n\n}));"],"names":[],"sourceRoot":""}