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{\n\t\t\tconst revert = gantt.copy(command);\n\t\t\trevert.type = this.inverseCommands(command.type);\n\t\t\treturn revert;\n\t\t},\n\t\tinverseCommands(command: TActionType): TActionType {\n\t\t\tswitch (command) {\n\t\t\t\tcase this.type.update:\n\t\t\t\t\treturn this.type.update;\n\t\t\t\tcase this.type.remove:\n\t\t\t\t\treturn this.type.add;\n\t\t\t\tcase this.type.add:\n\t\t\t\t\treturn this.type.remove;\n\t\t\t\tcase this.type.move:\n\t\t\t\t\treturn this.type.move;\n\t\t\t\tdefault:\n\t\t\t\t\tgantt.assert(false, \"Invalid command \"+ command);\n\t\t\t\t\treturn null;\n\t\t\t}\n\t\t}\n\t};\n\n\tprivate _undoStack = [];\n\tprivate _redoStack = [];\n\n\tgetUndoStack() {\n\t\treturn this._undoStack;\n\t}\n\n\tgetRedoStack() {\n\t\treturn this._redoStack;\n\t}\n\n\tclearUndoStack() {\n\t\tthis._undoStack = [];\n\t}\n\n\tclearRedoStack() {\n\t\tthis._redoStack = [];\n\t}\n\n\tupdateConfigs() {\n\t\tthis.maxSteps = gantt.config.undo_steps || MAX_UNDO_STEPS;\n\t\tthis.command.entity = gantt.config.undo_types;\n\t\tthis.command.type = gantt.config.undo_actions;\n\t\tthis.undoEnabled = !!gantt.config.undo;\n\t\tthis.redoEnabled = (!!gantt.config.undo) && (!!gantt.config.redo);\n\t}\n\n\tundo() {\n\t\tthis.updateConfigs();\n\t\tif (!this.undoEnabled) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst action = this._pop(this._undoStack);\n\t\tif (action) {\n\t\t\tthis._reorderCommands(action);\n\t\t}\n\t\tif (gantt.callEvent(\"onBeforeUndo\", [action]) !== false) {\n\t\t\tif (action) {\n\t\t\t\tthis._applyAction(this.action.invert(action));\n\t\t\t\tthis._push(this._redoStack, gantt.copy(action));\n\t\t\t\tgantt.callEvent(\"onAfterUndo\", [action]);\n\t\t\t\treturn;\n\t\t\t}\n\t\t}\n\t\tgantt.callEvent(\"onAfterUndo\", [null]);\n\t}\n\n\tredo() {\n\t\tthis.updateConfigs();\n\t\tif (!this.redoEnabled) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst action = this._pop(this._redoStack);\n\t\tif (action) {\n\t\t\tthis._reorderCommands(action);\n\t\t}\n\n\t\tif (gantt.callEvent(\"onBeforeRedo\", [action]) !== false) {\n\t\t\tif (action) {\n\t\t\t\tthis._applyAction(action);\n\t\t\t\tthis._push(this._undoStack, gantt.copy(action));\n\t\t\t\tgantt.callEvent(\"onAfterRedo\", [action]);\n\t\t\t\treturn;\n\t\t\t}\n\t\t}\n\t\tgantt.callEvent(\"onAfterRedo\", [null]);\n\t}\n\n\t// storeUndo:\n\tlogAction(action: IUndoCommands) {\n\t\tthis._push(this._undoStack, action);\n\t\tthis._redoStack = [];\n\t}\n\n\tprivate _push(stack: TUndoStack, action: IUndoCommands): IUndoCommands {\n\t\tif (!action.commands.length) {\n\t\t\treturn;\n\t\t}\n\n\t\tconst event = stack === this._undoStack ? \"onBeforeUndoStack\" : \"onBeforeRedoStack\";\n\t\tif (gantt.callEvent(event, [action]) === false){\n\t\t\treturn;\n\t\t}\n\t\t// commands can be removed from event handler\n\t\tif (!action.commands.length) {\n\t\t\treturn;\n\t\t}\n\n\t\tstack.push(action);\n\t\twhile (stack.length > this.maxSteps) {\n\t\t\tstack.shift();\n\t\t}\n\t\treturn action;\n\t}\n\n\tprivate _pop(stack: TUndoStack): IUndoCommands {\n\t\treturn stack.pop();\n\t}\n\n\tprivate _reorderCommands(action) {\n\t\t// firstly process tasks and only then links\n\t\t// in order to ensure links are added not earlier than their tasks\n\t\t// firstly to 'move' actions and only then updates\n\t\tconst weights = { any: 0, link:1, task:2 };\n\t\tconst actionWeights = { move: 1, any:0 };\n\t\taction.commands.sort(function(a, b) {\n\t\t\tif (a.entity === \"task\" && b.entity === \"task\") {\n\t\t\t\tif (a.type !== b.type) {\n\t\t\t\t\treturn (actionWeights[b.type] || 0) - (actionWeights[a.type] || 0);\n\t\t\t\t} else if (a.type === \"move\" && a.oldValue && b.oldValue && b.oldValue.parent === a.oldValue.parent) {\n\t\t\t\t\treturn a.oldValue.$index - b.oldValue.$index;\n\t\t\t\t} else {\n\t\t\t\t\treturn 0;\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tconst weightA = weights[a.entity] || weights.any;\n\t\t\t\tconst weightB = weights[b.entity] || weights.any;\n\t\t\t\treturn weightB - weightA;\n\t\t\t}\n\n\t\t});\n\t}\n\n\tprivate _applyAction(action: IUndoCommands) {\n\t\tlet command = null;\n\t\tconst entities = this.command.entity;\n\t\tconst actions = this.command.type;\n\n\t\tconst methods = {};\n\t\tmethods[entities.task] = {\n\t\t\tadd: \"addTask\",\n\t\t\tget: \"getTask\",\n\t\t\tupdate: \"updateTask\",\n\t\t\tremove: \"deleteTask\",\n\t\t\tmove: \"moveTask\",\n\t\t\tisExists: \"isTaskExists\"\n\t\t};\n\t\tmethods[entities.link] = {\n\t\t\tadd: \"addLink\",\n\t\t\tget: \"getLink\",\n\t\t\tupdate: \"updateLink\",\n\t\t\tremove: \"deleteLink\",\n\t\t\tisExists: \"isLinkExists\"\n\t\t};\n\n\t\tgantt.batchUpdate(function() {\n\t\t\tfor (let i = 0; i < action.commands.length; i++) {\n\t\t\t\tcommand = action.commands[i];\n\t\t\t\tconst method = methods[command.entity][command.type];\n\t\t\t\tconst getMethod = methods[command.entity].get;\n\t\t\t\tconst check = methods[command.entity].isExists;\n\n\t\t\t\tif (command.type === actions.add) {\n\t\t\t\t\tgantt[method](command.oldValue, command.oldValue.parent, command.oldValue.$index);\n\t\t\t\t} else if (command.type === actions.remove) {\n\t\t\t\t\tif (gantt[check](command.value.id)) {\n\t\t\t\t\t\tgantt[method](command.value.id);\n\t\t\t\t\t}\n\t\t\t\t} else if (command.type === actions.update) {\n\t\t\t\t\tconst item = gantt[getMethod](command.value.id);\n\t\t\t\t\tfor(const prop in command.value){\n\t\t\t\t\t\tif(!prop.startsWith(\"$\") && !prop.startsWith(\"_\")){\n\t\t\t\t\t\t\titem[prop] = command.value[prop];\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\tgantt[method](command.value.id);\n\t\t\t\t} else if (command.type === actions.move) {\n\t\t\t\t\tgantt[method](command.value.id, command.value.$index, command.value.parent);\n\t\t\t\t}\n\t\t\t}\n\t\t});\n\t}\n}","declare var gantt;\n\nimport { IInlineEditState, IMonitor, IUndo, IUndoCommand, TActionType, TEntityType, TUndoValue } from \"./types\";\n\nconst noTrack = {\n\tonBeforeUndo: \"onAfterUndo\",\n\tonBeforeRedo: \"onAfterRedo\"\n};\n\nconst batchActions = [\n\t\"onTaskDragStart\",\n\t\"onAfterTaskUpdate\",\n\t\"onAfterTaskDelete\",\n\t\"onBeforeBatchUpdate\"\n];\n\nexport class Monitor implements IMonitor {\n\tprivate _batchAction = null;\n\tprivate _batchMode = false;\n\tprivate _ignore = false;\n\tprivate _ignoreMoveEvents = false;\n\tprivate _initialTasks = {};\n\tprivate _initialLinks = {};\n\tprivate _nestedTasks =  {};\n\tprivate _nestedLinks = {};\n\tprivate _timeout;\n\tprivate _undo;\n\tconstructor(undo: IUndo) {\n\t\tthis._undo = undo;\n\t\tthis._attachEvents();\n\t}\n\n\tstore(id: TaskID | LinkID, type: TEntityType, overwrite: boolean = false) {\n\t\tif (type === gantt.config.undo_types.task) {\n\t\t\treturn this._storeTask(id, overwrite);\n\t\t}\n\t\tif (type === gantt.config.undo_types.link) {\n\t\t\treturn this._storeLink(id, overwrite);\n\t\t}\n\t\treturn false;\n\t}\n\tisMoveEventsIgnored() {\n\t\treturn this._ignoreMoveEvents;\n\t}\n\ttoggleIgnoreMoveEvents(newValue?: boolean) {\n\t\tthis._ignoreMoveEvents = newValue || false;\n\t}\n\tstartIgnore() {\n\t\tthis._ignore = true;\n\t}\n\tstopIgnore() {\n\t\tthis._ignore = false;\n\t}\n\tstartBatchAction() {\n\t\t// try catching updates made from event handlers using timeout\n\t\tif (this._timeout) {\n\t\t\tclearTimeout(this._timeout);\n\t\t}\n\t\tthis._timeout = setTimeout(() => {\n\t\t\tthis.stopBatchAction();\n\t\t}, 10);\n\n\t\tif (this._ignore || this._batchMode) {\n\t\t\treturn;\n\t\t}\n\n\t\tthis._batchMode = true;\n\t\tthis._batchAction = this._undo.action.create();\n\t}\n\tstopBatchAction() {\n\t\tif (this._ignore) {\n\t\t\treturn;\n\t\t}\n\t\tconst undo = this._undo;\n\t\tif (this._batchAction) {\n\t\t\tundo.logAction(this._batchAction);\n\t\t}\n\t\tthis._batchMode = false;\n\t\tthis._batchAction = null;\n\t}\n\tonTaskAdded(task: ITask) {\n\t\tif (!this._ignore) {\n\t\t\tthis._storeTaskCommand(task, this._undo.command.type.add);\n\t\t}\n\t}\n\tonTaskUpdated(task: ITask) {\n\t\tif (!this._ignore) {\n\t\t\tthis._storeTaskCommand(task, this._undo.command.type.update);\n\t\t}\n\t}\n\tonTaskMoved(task: ITask) {\n\t\tif (!this._ignore) {\n\t\t\tthis._storeEntityCommand(\n\t\t\t\ttask,\n\t\t\t\tthis.getInitialTask(task.id),\n\t\t\t\tthis._undo.command.type.move,\n\t\t\t\tthis._undo.command.entity.task\n\t\t\t);\n\t\t}\n\t}\n\tonTaskDeleted(task: ITask) {\n\t\tif (!this._ignore) {\n\t\t\tthis._storeTaskCommand(task, this._undo.command.type.remove);\n\t\t\tif (this._nestedTasks[task.id]) {\n\t\t\t\tconst children = this._nestedTasks[task.id];\n\t\t\t\tfor (let i = 0; i < children.length; i++) {\n\t\t\t\t\tthis._storeTaskCommand(children[i], this._undo.command.type.remove);\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (this._nestedLinks[task.id]) {\n\t\t\t\tconst childrenLinks = this._nestedLinks[task.id];\n\t\t\t\tfor (let i = 0; i < childrenLinks.length; i++) {\n\t\t\t\t\tthis._storeLinkCommand(childrenLinks[i], this._undo.command.type.remove);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\tonLinkAdded(link: ILink) {\n\t\tif (!this._ignore) {\n\t\t\tthis._storeLinkCommand(link, this._undo.command.type.add);\n\t\t}\n\t}\n\tonLinkUpdated(link: ILink) {\n\t\tif (!this._ignore) {\n\t\t\tthis._storeLinkCommand(link, this._undo.command.type.update);\n\t\t}\n\t}\n\tonLinkDeleted(link: ILink) {\n\t\tif (!this._ignore) {\n\t\t\tthis._storeLinkCommand(link, this._undo.command.type.remove);\n\t\t}\n\t}\n\tsetNestedTasks(id: TaskID, taskIds: TaskID[]) {\n\t\tlet task = null;\n\t\tconst tasks = [];\n\t\tlet\tlinkIds = this._getLinks(gantt.getTask(id));\n\n\t\tfor (let i = 0; i < taskIds.length; i++) {\n\t\t\ttask = this.setInitialTask(taskIds[i]);\n\t\t\tlinkIds = linkIds.concat(this._getLinks(task));\n\t\t\ttasks.push(task);\n\t\t}\n\n\t\tconst uniqueLinks = {};\n\t\tfor (let i = 0; i < linkIds.length; i++) {\n\t\t\tuniqueLinks[linkIds[i]] = true;\n\t\t}\n\t\tconst links = [];\n\t\tfor (const i in uniqueLinks) {\n\t\t\tlinks.push(this.setInitialLink(i));\n\t\t}\n\t\tthis._nestedTasks[id] = tasks;\n\t\tthis._nestedLinks[id] = links;\n\t}\n\tsetInitialTask(id: TaskID, overwrite?: boolean) {\n\t\tif (overwrite || (!this._initialTasks[id] || !this._batchMode)) {\n\t\t\tconst task = gantt.copy(gantt.getTask(id));\n\t\t\ttask.$index = gantt.getTaskIndex(id);\n\t\t\tthis.setInitialTaskObject(id, task);\n\t\t}\n\t\treturn this._initialTasks[id];\n\t}\n\tgetInitialTask(id: TaskID) {\n\t\treturn this._initialTasks[id];\n\t}\n\tclearInitialTasks() {\n\t\tthis._initialTasks = {};\n\t}\n\tsetInitialTaskObject(id: TaskID, object: ITask) {\n\t\tthis._initialTasks[id] = object;\n\t}\n\tsetInitialLink(id: LinkID, overwrite?: boolean) {\n\t\tif (!this._initialLinks[id] || !this._batchMode) {\n\t\t\tthis._initialLinks[id] = gantt.copy(gantt.getLink(id));\n\t\t}\n\t\treturn this._initialLinks[id];\n\t}\n\tgetInitialLink(id: LinkID) {\n\t\treturn this._initialLinks[id];\n\t}\n\tclearInitialLinks() {\n\t\tthis._initialLinks = {};\n\t}\n\tprivate _attachEvents() {\n\t\tlet deleteCacheCooldown = null;\n\n\t\tconst saveInitialAll = () => {\n\t\t\tif (!deleteCacheCooldown) {\n\t\t\t\tdeleteCacheCooldown = setTimeout(() => {\n\t\t\t\t\tdeleteCacheCooldown = null;\n\t\t\t\t});\n\n\t\t\t\tthis.clearInitialTasks();\n\t\t\t\tgantt.eachTask((task: ITask) => {\n\t\t\t\t\tthis.setInitialTask(task.id);\n\t\t\t\t});\n\n\t\t\t\tthis.clearInitialLinks();\n\t\t\t\tgantt.getLinks().forEach((link: ILink) => {\n\t\t\t\t\tthis.setInitialLink(link.id);\n\t\t\t\t});\n\t\t\t}\n\t\t};\n\t\tconst getMoveObjectByTaskId = (id: TaskID) => {\n\t\t\treturn gantt.copy(gantt.getTask(id));\n\t\t};\n\n\t\tfor (const i in noTrack) {\n\t\t\tgantt.attachEvent(i, () => {\n\t\t\t\tthis.startIgnore();\n\t\t\t\treturn true;\n\t\t\t});\n\t\t\tgantt.attachEvent(noTrack[i], () => {\n\t\t\t\tthis.stopIgnore();\n\t\t\t\treturn true;\n\t\t\t});\n\t\t}\n\n\t\tfor (let i  = 0; i < batchActions.length; i++) {\n\t\t\tgantt.attachEvent(batchActions[i], () => {\n\t\t\t\tthis.startBatchAction();\n\t\t\t\treturn true;\n\t\t\t});\n\t\t}\n\n\t\tgantt.attachEvent(\"onParse\", () => {\n\t\t\tthis._undo.clearUndoStack();\n\t\t\tthis._undo.clearRedoStack();\n\t\t\tsaveInitialAll();\n\t\t});\n\t\tgantt.attachEvent(\"onAfterTaskAdd\", (id: TaskID, task: ITask) => {\n\t\t\tthis.setInitialTask(id, true);\n\t\t\tthis.onTaskAdded(task);\n\t\t});\n\t\tgantt.attachEvent(\"onAfterTaskUpdate\", (id: TaskID, task: ITask) => {\n\t\t\tthis.onTaskUpdated(task);\n\t\t});\n\t\tgantt.attachEvent(\"onAfterTaskDelete\", (id: TaskID, task: ITask) => {\n\t\t\tthis.onTaskDeleted(task);\n\t\t});\n\t\tgantt.attachEvent(\"onAfterLinkAdd\", (id: LinkID, link: ILink) => {\n\t\t\tthis.setInitialLink(id, true);\n\t\t\tthis.onLinkAdded(link);\n\t\t});\n\t\tgantt.attachEvent(\"onAfterLinkUpdate\", (id: LinkID, link: ILink) => {\n\t\t\tthis.onLinkUpdated(link);\n\t\t});\n\t\tgantt.attachEvent(\"onAfterLinkDelete\", (id: LinkID, link: ILink) => {\n\t\t\tthis.onLinkDeleted(link);\n\t\t});\n\t\tgantt.attachEvent(\"onRowDragEnd\", (id: TaskID, target: TaskID) => {\n\t\t\tthis.onTaskMoved(getMoveObjectByTaskId(id));\n\t\t\tthis.toggleIgnoreMoveEvents();\n\t\t\treturn true;\n\t\t});\n\t\tgantt.attachEvent(\"onBeforeTaskDelete\", (id: TaskID) => {\n\t\t\tthis.store(id, gantt.config.undo_types.task);\n\t\t\tconst nested = [];\n\n\t\t\t// remember task indexes in case their being deleted in a loop, so they could be restored in the correct order\n\t\t\tsaveInitialAll();\n\n\t\t\tgantt.eachTask((task: ITask) => {\n\t\t\t\tnested.push(task.id);\n\t\t\t}, id);\n\t\t\tthis.setNestedTasks(id, nested);\n\t\t\treturn true;\n\t\t});\n\t\tconst datastore = gantt.getDatastore(\"task\");\n\n\t\tdatastore.attachEvent(\"onBeforeItemMove\", (id: TaskID, parent: TaskID, tindex: number) => {\n\t\t\tif (!this.isMoveEventsIgnored()) {\n\t\t\t\tsaveInitialAll();\n\t\t\t}\n\t\t\treturn true;\n\t\t});\n\n\t\tdatastore.attachEvent(\"onAfterItemMove\", (id: TaskID, parent: TaskID, tindex: number) => {\n\t\t\tif (!this.isMoveEventsIgnored()) {\n\t\t\t\tthis.onTaskMoved(getMoveObjectByTaskId(id));\n\t\t\t}\n\t\t\treturn true;\n\t\t});\n\n\t\tgantt.attachEvent(\"onRowDragStart\", (id: TaskID, target: TaskID, e: Event) => {\n\t\t\tthis.toggleIgnoreMoveEvents(true);\n\t\t\tsaveInitialAll();\n\t\t\treturn true;\n\t\t});\n\n\t\tgantt.attachEvent(\"onBeforeTaskDrag\", (taskId: TaskID) => this.store(taskId, gantt.config.undo_types.task));\n\n\t\tgantt.attachEvent(\"onLightbox\", (taskId: TaskID) => this.store(taskId, gantt.config.undo_types.task));\n\n\t\tgantt.attachEvent(\"onBeforeTaskAutoSchedule\", (task: ITask) => {\n\t\t\tthis.store(task.id, gantt.config.undo_types.task);\n\t\t\treturn true;\n\t\t});\n\n\t\tif (gantt.ext.inlineEditors) {\n\t\t\tgantt.ext.inlineEditors.attachEvent(\"onEditStart\", (state: IInlineEditState) => {\n\t\t\t\tthis.store(state.id, gantt.config.undo_types.task);\n\t\t\t});\n\t\t}\n\t}\n\n\tprivate _storeCommand(command: IUndoCommand) {\n\t\tconst undo = this._undo;\n\t\tundo.updateConfigs();\n\n\t\tif (!undo.undoEnabled) {\n\t\t\treturn;\n\t\t}\n\n\t\tif (this._batchMode) {\n\t\t\tthis._batchAction.commands.push(command);\n\t\t} else {\n\t\t\tconst action = undo.action.create([command]);\n\t\t\tundo.logAction(action);\n\t\t}\n\t}\n\tprivate _storeEntityCommand(obj: TUndoValue, old: TUndoValue, actionType: TActionType, entityType: TEntityType) {\n\t\tconst undo = this._undo;\n\t\tconst command = undo.command.create(obj, old, actionType, entityType);\n\t\tthis._storeCommand(command);\n\t}\n\tprivate _storeTaskCommand(obj: ITask, type: TActionType) {\n\t\tthis._storeEntityCommand(obj, this.getInitialTask(obj.id), type, this._undo.command.entity.task);\n\t}\n\tprivate _storeLinkCommand(obj: ILink, type: TActionType) {\n\t\tthis._storeEntityCommand(obj, this.getInitialLink(obj.id), type, this._undo.command.entity.link);\n\t}\n\tprivate _getLinks(task: ITask) {\n\t\treturn task.$source.concat(task.$target);\n\t}\n\tprivate _storeTask(taskId: TaskID, overwrite: boolean = false) {\n\t\tthis.setInitialTask(taskId, overwrite);\n\t\tgantt.eachTask((child: ITask) => {\n\t\t\tthis.setInitialTask(child.id);\n\t\t}, taskId);\n\t\treturn true;\n\t}\n\tprivate _storeLink(linkId: LinkID, overwrite: boolean = false) {\n\t\tthis.setInitialLink(linkId, overwrite);\n\t\treturn true;\n\t}\n}","declare var gantt;\n\nimport { Monitor } from \"./monitor\";\nimport { IMonitor, IUndoCommand, TEntityType, TUndoStack } from \"./types\";\nimport { Undo } from \"./undo\";\nconst _undo = new Undo();\nconst monitor: IMonitor = new Monitor(_undo);\n\ngantt.config.undo = true;\ngantt.config.redo = true;\n\n/**\n * entities that require different processing for undoing-redoing changes\n * @type {{link: string, task: string}}\n */\ngantt.config.undo_types = {\n\tlink: \"link\",\n\ttask: \"task\"\n};\n\n/**\n * types of traced actions\n * @type {{update: string, remove: string, add: string}}\n */\ngantt.config.undo_actions = {\n\tupdate: \"update\",\n\tremove: \"remove\", // remove item from datastore\n\tadd: \"add\",\n\tmove: \"move\" // move task in grid\n};\n\nif (!gantt.ext) {\n\tgantt.ext = {};\n}\n\ngantt.ext.undo = {\n\tundo: () => _undo.undo(),\n\tredo: () => _undo.redo(),\n\tgetUndoStack: () => _undo.getUndoStack(),\n\tgetRedoStack: () => _undo.getRedoStack(),\n\tclearUndoStack: () => _undo.clearUndoStack(),\n\tclearRedoStack: () => _undo.clearRedoStack(),\n\tsaveState: (id: TaskID | LinkID, type: TEntityType) => monitor.store(id, type, true)\n};\n\ngantt.undo = gantt.ext.undo.undo;\ngantt.redo = gantt.ext.undo.redo;\ngantt.getUndoStack = gantt.ext.undo.getUndoStack;\ngantt.getRedoStack = gantt.ext.undo.getRedoStack;\ngantt.clearUndoStack = gantt.ext.undo.clearUndoStack;\ngantt.clearRedoStack = gantt.ext.undo.clearRedoStack;\n\nfunction updTask(task: ITask, oldId: TaskID, newId: TaskID) {\n\tif (!task) { return; }\n\n\tif (task.id === oldId) {\n\t\ttask.id = newId;\n\t}\n\n\tif (task.parent === oldId) {\n\t\ttask.parent = newId;\n\t}\n}\n\nfunction changeTaskCommandId(command: IUndoCommand, oldId: TaskID, newId: TaskID) {\n\tupdTask(command.value, oldId, newId);\n\tupdTask(command.oldValue, oldId, newId);\n}\n\nfunction updLink(link: ILink, oldTaskId: TaskID, newTaskId: TaskID) {\n\tif (!link) { return; }\n\tif (link.source === oldTaskId) {\n\t\tlink.source = newTaskId;\n\t}\n\tif (link.target === oldTaskId) {\n\t\tlink.target = newTaskId;\n\t}\n}\n\nfunction changeLinkCommandId(command: IUndoCommand, oldId: LinkID, newId: LinkID) {\n\tupdLink(command.value, oldId, newId);\n\tupdLink(command.oldValue, oldId, newId);\n}\n\nfunction updateTasksIds(log: TUndoStack, oldId: TaskID, newId: TaskID) {\n\tconst undo = _undo;\n\n\tfor (let i = 0; i < log.length; i++) {\n\t\tconst entry = log[i];\n\t\tfor (let j = 0; j < entry.commands.length; j++) {\n\t\t\tif (entry.commands[j].entity === undo.command.entity.task) {\n\t\t\t\tchangeTaskCommandId(entry.commands[j], oldId, newId);\n\t\t\t} else if (entry.commands[j].entity === undo.command.entity.link) {\n\t\t\t\tchangeLinkCommandId(entry.commands[j], oldId, newId);\n\t\t\t}\n\t\t}\n\t}\n}\n\nfunction updateLinksIds(log: TUndoStack, oldId: LinkID, newId: LinkID) {\n\tconst undo = _undo;\n\n\tfor (let i = 0; i < log.length; i++) {\n\t\tconst entry = log[i];\n\t\tfor (let j = 0; j < entry.commands.length; j++) {\n\t\t\tconst command = entry.commands[j];\n\t\t\tif (command.entity === undo.command.entity.link) {\n\t\t\t\tif (command.value && command.value.id === oldId) {\n\t\t\t\t\tcommand.value.id = newId;\n\t\t\t\t}\n\t\t\t\tif (command.oldValue && command.oldValue.id === oldId) {\n\t\t\t\t\tcommand.oldValue.id = newId;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n}\n\ngantt.attachEvent(\"onTaskIdChange\", (oldId: TaskID, newId: TaskID) => {\n\tconst undo = _undo;\n\tupdateTasksIds(undo.getUndoStack(), oldId, newId);\n\tupdateTasksIds(undo.getRedoStack(), oldId, newId);\n});\n\ngantt.attachEvent(\"onLinkIdChange\", (oldId: LinkID, newId: LinkID) => {\n\tconst undo = _undo;\n\tupdateLinksIds(undo.getUndoStack(), oldId, newId);\n\tupdateLinksIds(undo.getRedoStack(), oldId, newId);\n});\n\ngantt.attachEvent(\"onGanttReady\", () => {\n\t_undo.updateConfigs();\n});\n"],"sourceRoot":""}