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* Minified by jsDelivr using Terser v5.39.0.\n * Original file: /npm/@flowgram.ai/free-history-plugin@1.0.3/dist/index.js\n *\n * Do NOT use SRI with dynamically generated files! More information: https://www.jsdelivr.com/using-sri-with-dynamic-files\n */\n","/**\n * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates\n * SPDX-License-Identifier: MIT\n */\n\nexport * from './create-free-history-plugin';\nexport * from './types';\nexport * from '@flowgram.ai/history';\nexport * from './free-history-config';\nexport * from './hooks';\nexport * from './free-history-registers';\n","/**\n * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates\n * SPDX-License-Identifier: MIT\n */\n\nimport { HistoryContainerModule, OperationContribution } from '@flowgram.ai/history';\nimport { bindContributions, definePluginCreator } from '@flowgram.ai/core';\n\nimport { type FreeHistoryPluginOptions } from './types';\nimport { HistoryEntityManager } from './history-entity-manager';\nimport { DragNodesHandler } from './handlers/drag-nodes-handler';\nimport { ChangeContentHandler } from './handlers/change-content-handler';\nimport { FreeHistoryRegisters } from './free-history-registers';\nimport { FreeHistoryManager } from './free-history-manager';\nimport { FreeHistoryConfig } from './free-history-config';\n\nexport const createFreeHistoryPlugin = definePluginCreator({\n onBind: ({ bind }) => {\n bindContributions(bind, FreeHistoryRegisters, [OperationContribution]);\n bind(FreeHistoryConfig).toSelf().inSingletonScope();\n bind(FreeHistoryManager).toSelf().inSingletonScope();\n bind(HistoryEntityManager).toSelf().inSingletonScope();\n bind(DragNodesHandler).toSelf().inSingletonScope();\n bind(ChangeContentHandler).toSelf().inSingletonScope();\n },\n onInit(ctx, opts): void {\n ctx.get(FreeHistoryConfig).init(ctx, opts);\n\n if (!opts.enable) {\n return;\n }\n ctx.get(FreeHistoryManager).onInit(ctx, opts);\n },\n onDispose(ctx) {\n ctx.get(HistoryEntityManager).dispose();\n },\n containerModules: [HistoryContainerModule],\n});\n","/**\n * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates\n * SPDX-License-Identifier: MIT\n */\n\n/* eslint-disable @typescript-eslint/naming-convention */\nimport { cloneDeep, isEqual } from 'lodash-es';\nimport { injectable } from 'inversify';\nimport { type Disposable, DisposableCollection } from '@flowgram.ai/utils';\nimport { type EntityData } from '@flowgram.ai/core';\n\n@injectable()\nexport class HistoryEntityManager implements Disposable {\n private _entityDataValues: Map = new Map();\n\n private _toDispose: DisposableCollection = new DisposableCollection();\n\n addEntityData(entityData: EntityData) {\n this._entityDataValues.set(entityData, cloneDeep(entityData.toJSON()));\n this._toDispose.push(\n entityData.onWillChange((event) => {\n const value = event.toJSON();\n const oldValue = this._entityDataValues.get(entityData);\n if (isEqual(value, oldValue)) {\n return;\n }\n this._entityDataValues.set(entityData, cloneDeep(value));\n })\n );\n }\n\n getValue(entityData: EntityData) {\n return this._entityDataValues.get(entityData);\n }\n\n setValue(entityData: EntityData, value: unknown) {\n return this._entityDataValues.set(entityData, value);\n }\n\n dispose() {\n this._entityDataValues.clear();\n this._toDispose.dispose();\n }\n}\n","/**\n * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates\n * SPDX-License-Identifier: MIT\n */\n\n/* eslint-disable @typescript-eslint/naming-convention */\nimport { injectable, inject } from 'inversify';\nimport { HistoryService } from '@flowgram.ai/history';\nimport { type NodesDragEndEvent } from '@flowgram.ai/free-layout-core';\nimport { TransformData } from '@flowgram.ai/core';\n\nimport { FreeOperationType, type IHandler } from '../types';\n\n@injectable()\nexport class DragNodesHandler implements IHandler {\n @inject(HistoryService)\n private _historyService: HistoryService;\n\n handle(event: NodesDragEndEvent) {\n if (event.type === 'onDragEnd') {\n this._dragNode(event);\n }\n }\n\n private _dragNode(event: NodesDragEndEvent) {\n this._historyService.pushOperation(\n {\n type: FreeOperationType.dragNodes,\n value: {\n ids: event.nodes.map((node) => node.id),\n value: event.nodes.map((node) => {\n const { x, y } = node.getData(TransformData).position;\n return {\n x,\n y,\n };\n }),\n oldValue: event.startPositions,\n },\n },\n { noApply: true }\n );\n }\n}\n","/**\n * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates\n * SPDX-License-Identifier: MIT\n */\n\n/* eslint-disable @typescript-eslint/naming-convention */\nimport { type IPoint } from '@flowgram.ai/utils';\nimport { type Operation, type OperationMeta } from '@flowgram.ai/history';\nimport {\n type WorkflowContentChangeType,\n type WorkflowContentChangeEvent,\n type WorkflowLineEntity,\n type WorkflowLinePortInfo,\n type WorkflowNodeJSON,\n type PositionMap,\n} from '@flowgram.ai/free-layout-core';\nimport { type FlowNodeEntity, type FlowNodeJSON } from '@flowgram.ai/document';\nimport { type EntityData, type PluginContext } from '@flowgram.ai/core';\n\nexport enum FreeOperationType {\n addLine = 'addLine',\n deleteLine = 'deleteLine',\n changeLineData = 'changeLineData',\n moveNode = 'moveNode',\n addNode = 'addNode',\n deleteNode = 'deleteNode',\n changeNodeData = 'changeNodeData',\n resetLayout = 'resetLayout',\n dragNodes = 'dragNodes',\n moveChildNodes = 'moveChildNodes',\n}\n\nexport interface AddOrDeleteLineOperationValue extends WorkflowLinePortInfo {\n id: string;\n}\n\nexport interface ChangeLineDataValue {\n id: string;\n oldValue: unknown;\n newValue: unknown;\n}\nexport interface AddOrDeleteWorkflowNodeOperationValue {\n node: WorkflowNodeJSON;\n parentID?: string;\n}\n\nexport interface AddLineOperation extends Operation {\n type: FreeOperationType.addLine;\n value: AddOrDeleteLineOperationValue;\n}\n\nexport interface ChangeLineDataOperation extends Operation {\n type: FreeOperationType.changeLineData;\n value: ChangeLineDataValue;\n}\n\nexport interface DeleteLineOperation extends Operation {\n type: FreeOperationType.deleteLine;\n value: AddOrDeleteLineOperationValue;\n}\n\nexport interface MoveNodeOperation extends Operation {\n type: FreeOperationType.moveNode;\n value: MoveNodeOperationValue;\n}\n\nexport interface AddWorkflowNodeOperation extends Operation {\n type: FreeOperationType.addNode;\n value: AddOrDeleteWorkflowNodeOperationValue;\n}\n\nexport interface DeleteWorkflowNodeOperation extends Operation {\n type: FreeOperationType.deleteNode;\n value: AddOrDeleteWorkflowNodeOperationValue;\n}\n\nexport interface MoveNodeOperationValue {\n id: string;\n value: {\n x: number;\n y: number;\n };\n oldValue: {\n x: number;\n y: number;\n };\n}\n\nexport interface DragNodeOperationValue {\n ids: string[];\n value: IPoint[];\n oldValue: IPoint[];\n}\n\nexport interface ResetLayoutOperationValue {\n ids: string[];\n value: PositionMap;\n oldValue: PositionMap;\n}\n\nexport interface ContentChangeTypeToOperation {\n type: WorkflowContentChangeType;\n toOperation: (event: WorkflowContentChangeEvent, ctx: PluginContext) => T | undefined;\n}\n\nexport interface EntityDataType {\n type: FreeOperationType;\n toEntityData: (node: FlowNodeEntity, ctx: PluginContext) => EntityData;\n}\n\nexport interface ChangeNodeDataValue {\n id: string;\n value: unknown;\n oldValue: unknown;\n path: string;\n}\n\nexport interface ChangeLineDataValue {\n id: string;\n newValue: unknown;\n oldValue: unknown;\n}\n\n/**\n * 将node转成json\n */\nexport type NodeToJson = (node: FlowNodeEntity) => FlowNodeJSON;\n/**\n * 将line转成json\n */\nexport type LineToJson = (node: WorkflowLineEntity) => FlowNodeJSON;\n/**\n * 根据节点id获取label\n */\nexport type GetNodeLabelById = (id: string) => string;\n/**\n * 根据节点获取label\n */\nexport type GetNodeLabel = (node: FlowNodeJSON) => string;\n/**\n * 根据分支获取label\n */\nexport type GetBlockLabel = (node: FlowNodeJSON) => string;\n/**\n * 根据节点获取URI\n */\nexport type GetNodeURI = (id: string) => string | any;\n/**\n * 根据连线获取URI\n */\nexport type GetLineURI = (id: string) => string | any;\n\n/**\n * 插件配置\n */\nexport interface FreeHistoryPluginOptions {\n enable?: boolean;\n limit?: number;\n nodeToJSON?: (ctx: CTX) => NodeToJson;\n getNodeLabelById?: (ctx: CTX) => GetNodeLabelById;\n getNodeLabel?: (ctx: CTX) => GetNodeLabel;\n getBlockLabel?: (ctx: CTX) => GetBlockLabel;\n getNodeURI?: (ctx: CTX) => GetNodeURI;\n getLineURI?: (ctx: CTX) => GetLineURI;\n operationMetas?: OperationMeta[];\n enableChangeNode?: boolean; // default true\n enableChangeLineData?: boolean; // default true\n uri?: string | any;\n}\n\nexport interface IHandler {\n handle: (event: E, ctx: PluginContext) => void | Promise;\n}\n","/**\n * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates\n * SPDX-License-Identifier: MIT\n */\n\n/* eslint-disable @typescript-eslint/naming-convention */\nimport { injectable, inject } from 'inversify';\nimport { HistoryService, Operation } from '@flowgram.ai/history';\nimport {\n type WorkflowContentChangeEvent,\n WorkflowContentChangeType,\n} from '@flowgram.ai/free-layout-core';\nimport { type PluginContext } from '@flowgram.ai/core';\n\nimport { type IHandler } from '../types';\nimport { FreeHistoryConfig } from '../free-history-config';\nimport changes from '../changes';\n\n@injectable()\nexport class ChangeContentHandler implements IHandler {\n @inject(HistoryService)\n private _historyService: HistoryService;\n\n @inject(FreeHistoryConfig) private _historyConfig: FreeHistoryConfig;\n\n handle(event: WorkflowContentChangeEvent, ctx: PluginContext) {\n if (!this._historyService.undoRedoService.canPush()) {\n return;\n }\n if (\n !this._historyConfig.enableChangeLineData &&\n event.type === WorkflowContentChangeType.LINE_DATA_CHANGE\n ) {\n return;\n }\n\n const change = changes.find((c) => c.type === event.type);\n if (!change) {\n return;\n }\n const operation: Operation | undefined = change.toOperation(event, ctx);\n if (!operation) {\n return;\n }\n\n this._historyService.pushOperation(operation, { noApply: true });\n }\n}\n","/**\n * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates\n * SPDX-License-Identifier: MIT\n */\n\nimport { injectable } from 'inversify';\nimport { type FlowNodeEntity, type FlowNodeJSON } from '@flowgram.ai/document';\nimport { type PluginContext } from '@flowgram.ai/core';\n\nimport {\n type FreeHistoryPluginOptions,\n type GetBlockLabel,\n type GetLineURI,\n type GetNodeLabel,\n type GetNodeLabelById,\n type GetNodeURI,\n type NodeToJson,\n} from './types';\n\n@injectable()\nexport class FreeHistoryConfig {\n init(ctx: PluginContext, options: FreeHistoryPluginOptions) {\n this.enable = !!options?.enable;\n\n if (options.nodeToJSON) {\n this.nodeToJSON = options.nodeToJSON(ctx);\n }\n\n if (options.getNodeLabelById) {\n this.getNodeLabelById = options.getNodeLabelById(ctx);\n }\n\n if (options.getNodeLabel) {\n this.getNodeLabel = options.getNodeLabel(ctx);\n }\n\n if (options.getBlockLabel) {\n this.getBlockLabel = options.getBlockLabel(ctx);\n }\n\n if (options.getNodeURI) {\n this.getNodeURI = options.getNodeURI(ctx);\n }\n\n if (options.getLineURI) {\n this.getLineURI = options.getLineURI(ctx);\n }\n if (options.enableChangeNode !== undefined) {\n this.enableChangeNode = options.enableChangeNode;\n }\n if (options.enableChangeLineData !== undefined) {\n this.enableChangeLineData = options.enableChangeLineData;\n }\n }\n\n enableChangeNode = true;\n\n enableChangeLineData = true;\n\n enable = false;\n\n nodeToJSON: NodeToJson = (node: FlowNodeEntity) => node.toJSON();\n\n getNodeLabelById: GetNodeLabelById = (id: string) => id;\n\n getNodeLabel: GetNodeLabel = (node: FlowNodeJSON) => node.id;\n\n getBlockLabel: GetBlockLabel = (node: FlowNodeJSON) => node.id;\n\n getNodeURI: GetNodeURI = (id: string) => `node:${id}`;\n\n getLineURI: GetLineURI = (id: string) => `line:${id}`;\n}\n","/**\n * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates\n * SPDX-License-Identifier: MIT\n */\n\nimport { WorkflowContentChangeType } from '@flowgram.ai/free-layout-core';\nimport { type FlowNodeEntity } from '@flowgram.ai/document';\n\nimport {\n type ContentChangeTypeToOperation,\n FreeOperationType,\n type DeleteWorkflowNodeOperation,\n} from '../types';\nimport { FreeHistoryConfig } from '../free-history-config';\n\nexport const deleteNodeChange: ContentChangeTypeToOperation = {\n type: WorkflowContentChangeType.DELETE_NODE,\n toOperation: (event, ctx) => {\n const config = ctx.get(FreeHistoryConfig);\n const node = event.entity as FlowNodeEntity;\n const json = event.toJSON();\n const parentID = node.parent?.id;\n\n return {\n type: FreeOperationType.deleteNode,\n value: {\n node: json,\n parentID,\n },\n uri: config.getNodeURI(node.id),\n };\n },\n};\n","/**\n * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates\n * SPDX-License-Identifier: MIT\n */\n\nimport { type WorkflowLineEntity } from '@flowgram.ai/free-layout-core';\nimport { WorkflowContentChangeType } from '@flowgram.ai/free-layout-core';\n\nimport {\n type AddOrDeleteLineOperationValue,\n type ContentChangeTypeToOperation,\n type DeleteLineOperation,\n FreeOperationType,\n} from '../types';\nimport { FreeHistoryConfig } from '../free-history-config';\n\nexport const deleteLineChange: ContentChangeTypeToOperation = {\n type: WorkflowContentChangeType.DELETE_LINE,\n toOperation: (event, ctx) => {\n const config = ctx.get(FreeHistoryConfig);\n const line = event.entity as WorkflowLineEntity;\n const value: AddOrDeleteLineOperationValue = {\n from: line.info.from,\n to: line.info.to || '',\n fromPort: line.info.fromPort || '',\n toPort: line.info.toPort || '',\n data: line.info.data,\n id: line.id,\n };\n return {\n type: FreeOperationType.deleteLine,\n value,\n uri: config.getNodeURI(line.id),\n };\n },\n};\n","/**\n * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates\n * SPDX-License-Identifier: MIT\n */\n\nimport { type WorkflowLineEntity } from '@flowgram.ai/free-layout-core';\nimport { WorkflowContentChangeType } from '@flowgram.ai/free-layout-core';\n\nimport {\n type ChangeLineDataOperation,\n type ChangeLineDataValue,\n type ContentChangeTypeToOperation,\n FreeOperationType,\n} from '../types';\nimport { FreeHistoryConfig } from '../free-history-config';\n\nexport const changeLineData: ContentChangeTypeToOperation = {\n type: WorkflowContentChangeType.LINE_DATA_CHANGE,\n toOperation: (event, ctx) => {\n const config = ctx.get(FreeHistoryConfig);\n const line = event.entity as WorkflowLineEntity;\n const value: ChangeLineDataValue = {\n id: line.id,\n oldValue: event.oldValue,\n newValue: line.lineData,\n };\n return {\n type: FreeOperationType.changeLineData,\n value,\n uri: config.getLineURI(line.id),\n };\n },\n};\n","/**\n * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates\n * SPDX-License-Identifier: MIT\n */\n\nimport { WorkflowDocument, type WorkflowNodeJSON } from '@flowgram.ai/free-layout-core';\nimport { WorkflowContentChangeType } from '@flowgram.ai/free-layout-core';\nimport { type FlowNodeEntity } from '@flowgram.ai/document';\n\nimport {\n type AddWorkflowNodeOperation,\n type ContentChangeTypeToOperation,\n FreeOperationType,\n} from '../types';\nimport { FreeHistoryConfig } from '../free-history-config';\n\nexport const addNodeChange: ContentChangeTypeToOperation = {\n type: WorkflowContentChangeType.ADD_NODE,\n toOperation: (event, ctx) => {\n const config = ctx.get(FreeHistoryConfig);\n const document = ctx.get(WorkflowDocument);\n const node = event.entity as FlowNodeEntity;\n const parentID = node.parent?.id;\n const json: WorkflowNodeJSON = document.toNodeJSON(node);\n\n return {\n type: FreeOperationType.addNode,\n value: {\n node: json,\n parentID,\n },\n uri: config.getNodeURI(node.id),\n };\n },\n};\n","/**\n * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates\n * SPDX-License-Identifier: MIT\n */\n\nimport { type WorkflowLineEntity } from '@flowgram.ai/free-layout-core';\nimport { WorkflowContentChangeType } from '@flowgram.ai/free-layout-core';\n\nimport {\n type AddLineOperation,\n type AddOrDeleteLineOperationValue,\n type ContentChangeTypeToOperation,\n FreeOperationType,\n} from '../types';\nimport { FreeHistoryConfig } from '../free-history-config';\n\nexport const addLineChange: ContentChangeTypeToOperation = {\n type: WorkflowContentChangeType.ADD_LINE,\n toOperation: (event, ctx) => {\n const config = ctx.get(FreeHistoryConfig);\n const line = event.entity as WorkflowLineEntity;\n const value: AddOrDeleteLineOperationValue = {\n from: line.info.from,\n to: line.info.to || '',\n fromPort: line.info.fromPort || '',\n toPort: line.info.toPort || '',\n data: line.info.data,\n id: line.id,\n };\n return {\n type: FreeOperationType.addLine,\n value,\n uri: config.getLineURI(line.id),\n };\n },\n};\n","/**\n * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates\n * SPDX-License-Identifier: MIT\n */\n\nimport { deleteNodeChange } from './delete-node-change';\nimport { deleteLineChange } from './delete-line-change';\nimport { changeLineData } from './change-line-data';\nimport { addNodeChange } from './add-node-change';\nimport { addLineChange } from './add-line-change';\n\nexport default [addLineChange, deleteLineChange, addNodeChange, deleteNodeChange, changeLineData];\n","/**\n * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates\n * SPDX-License-Identifier: MIT\n */\n\nimport { injectable } from 'inversify';\nimport { type OperationContribution, type OperationRegistry } from '@flowgram.ai/history';\n\nimport { operationMetas } from './operation-metas';\n\n@injectable()\nexport class FreeHistoryRegisters implements OperationContribution {\n registerOperationMeta(operationRegistry: OperationRegistry): void {\n operationMetas.forEach(operationMeta => {\n operationRegistry.registerOperationMeta(operationMeta);\n });\n }\n}\n","/**\n * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates\n * SPDX-License-Identifier: MIT\n */\n\nimport { type PluginContext } from '@flowgram.ai/core';\nimport { WorkflowResetLayoutService } from '@flowgram.ai/free-layout-core';\nimport { type OperationMeta } from '@flowgram.ai/history';\n\nimport { FreeOperationType, type ResetLayoutOperationValue } from '../types';\nimport { baseOperationMeta } from './base';\n\nexport const resetLayoutOperationMeta: OperationMeta<\n ResetLayoutOperationValue,\n PluginContext,\n void\n> = {\n ...baseOperationMeta,\n type: FreeOperationType.resetLayout,\n inverse: op => ({\n ...op,\n value: {\n ...op.value,\n value: op.value.oldValue,\n oldValue: op.value.value,\n },\n }),\n apply: async (operation, ctx: PluginContext) => {\n const reset = ctx.get(WorkflowResetLayoutService);\n await reset.layoutToPositions(operation.value.ids, operation.value.value);\n },\n shouldMerge: () => false,\n};\n","/**\n * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates\n * SPDX-License-Identifier: MIT\n */\n\nimport { type OperationMeta } from '@flowgram.ai/history';\n\nexport const baseOperationMeta: Partial = {\n shouldMerge: (_op, prev, element) => {\n if (!prev) {\n return false;\n }\n\n if (\n // 合并500ms内的操作, 如删除节点会联动删除线条\n Date.now() - element.getTimestamp() <\n 500\n ) {\n return true;\n }\n return false;\n },\n};\n","/**\n * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates\n * SPDX-License-Identifier: MIT\n */\n\nimport { OperationMeta } from '@flowgram.ai/history';\nimport { WorkflowDocument } from '@flowgram.ai/free-layout-core';\nimport { MoveChildNodesOperationValue, OperationType } from '@flowgram.ai/document';\nimport { FlowNodeBaseType } from '@flowgram.ai/document';\nimport { PluginContext, TransformData } from '@flowgram.ai/core';\n\nimport { baseOperationMeta } from './base';\n\nexport const moveChildNodesOperationMeta: OperationMeta<\n MoveChildNodesOperationValue,\n PluginContext,\n void\n> = {\n ...baseOperationMeta,\n type: OperationType.moveChildNodes,\n inverse: (op) => ({\n ...op,\n value: {\n ...op.value,\n fromIndex: op.value.toIndex,\n toIndex: op.value.fromIndex,\n fromParentId: op.value.toParentId,\n toParentId: op.value.fromParentId,\n },\n }),\n apply: (operation, ctx: PluginContext) => {\n const document = ctx.get(WorkflowDocument);\n document.moveChildNodes(operation.value);\n const fromContainer = document.getNode(operation.value.fromParentId);\n requestAnimationFrame(() => {\n if (fromContainer && fromContainer.flowNodeType !== FlowNodeBaseType.ROOT) {\n const fromContainerTransformData = fromContainer.getData(TransformData);\n fromContainerTransformData.fireChange();\n }\n });\n },\n};\n","/**\n * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates\n * SPDX-License-Identifier: MIT\n */\n\nimport { type OperationMeta } from '@flowgram.ai/history';\nimport { WorkflowDocument } from '@flowgram.ai/free-layout-core';\nimport { type PluginContext, TransformData } from '@flowgram.ai/core';\n\nimport { type DragNodeOperationValue, FreeOperationType } from '../types';\nimport { baseOperationMeta } from './base';\n\nexport const dragNodesOperationMeta: OperationMeta = {\n ...baseOperationMeta,\n type: FreeOperationType.dragNodes,\n inverse: (op) => ({\n ...op,\n value: {\n ...op.value,\n value: op.value.oldValue,\n oldValue: op.value.value,\n },\n }),\n apply: (operation, ctx) => {\n operation.value.ids.forEach((id, index) => {\n const document = ctx.get(WorkflowDocument);\n const node = document.getNode(id);\n if (!node) {\n return;\n }\n\n const transform = node.getData(TransformData);\n const point = operation.value.value[index];\n transform.update({\n position: {\n x: point.x,\n y: point.y,\n },\n });\n document.layout.updateAffectedTransform(node);\n });\n },\n};\n","/**\n * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates\n * SPDX-License-Identifier: MIT\n */\n\nimport { type PluginContext } from '@flowgram.ai/core';\nimport { WorkflowDocument } from '@flowgram.ai/free-layout-core';\nimport { type OperationMeta } from '@flowgram.ai/history';\n\nimport { type AddOrDeleteWorkflowNodeOperationValue, FreeOperationType } from '../types';\nimport { FreeHistoryConfig } from '../free-history-config';\nimport { baseOperationMeta } from './base';\n\nexport const deleteNodeOperationMeta: OperationMeta<\n AddOrDeleteWorkflowNodeOperationValue,\n PluginContext,\n void\n> = {\n ...baseOperationMeta,\n type: FreeOperationType.deleteNode,\n inverse: op => ({\n ...op,\n type: FreeOperationType.addNode,\n }),\n apply: (operation, ctx: PluginContext) => {\n const document = ctx.get(WorkflowDocument);\n const node = document.getNode(operation.value.node.id);\n if (node) {\n node.dispose();\n }\n },\n getLabel: (op, ctx) => {\n const config = ctx.get(FreeHistoryConfig);\n return `Delete Node ${config.getNodeLabel(op.value.node)}`;\n },\n getDescription: (op, ctx) => {\n const config = ctx.get(FreeHistoryConfig);\n let desc = `Delete Node ${config.getNodeLabel(op.value.node)}`;\n if (op.value.node.meta?.position) {\n desc += ` at ${op.value.node.meta.position.x},${op.value.node.meta.position.y}`;\n }\n return desc;\n },\n};\n","/**\n * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates\n * SPDX-License-Identifier: MIT\n */\n\nimport { type OperationMeta } from '@flowgram.ai/history';\nimport { WorkflowDocument } from '@flowgram.ai/free-layout-core';\nimport { type PluginContext } from '@flowgram.ai/core';\n\nimport { type AddOrDeleteLineOperationValue, FreeOperationType } from '../types';\nimport { FreeHistoryConfig } from '../free-history-config';\nimport { baseOperationMeta } from './base';\n\nexport const deleteLineOperationMeta: OperationMeta<\n AddOrDeleteLineOperationValue,\n PluginContext,\n void\n> = {\n ...baseOperationMeta,\n type: FreeOperationType.deleteLine,\n inverse: (op) => ({\n ...op,\n type: FreeOperationType.addLine,\n }),\n apply: (operation, ctx: PluginContext) => {\n const document = ctx.get(WorkflowDocument);\n document.removeNode(operation.value.id);\n },\n getLabel: (op, ctx) => 'Delete Line',\n getDescription: (op, ctx) => {\n const config = ctx.get(FreeHistoryConfig);\n const { value } = op;\n if (!value.from || !value.to) {\n return 'Delete Line';\n }\n\n const fromName = config.getNodeLabelById(value.from);\n const toName = config.getNodeLabelById(value.to);\n return `Delete Line from ${fromName} to ${toName}`;\n },\n};\n","/**\n * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates\n * SPDX-License-Identifier: MIT\n */\n\nimport { type OperationMeta } from '@flowgram.ai/history';\nimport { WorkflowLinesManager } from '@flowgram.ai/free-layout-core';\nimport { type PluginContext } from '@flowgram.ai/core';\n\nimport { FreeOperationType, type ChangeLineDataValue } from '../types';\nimport { baseOperationMeta } from './base';\n\nexport const changeLineDataOperationMeta: OperationMeta =\n {\n ...baseOperationMeta,\n type: FreeOperationType.changeLineData,\n inverse: (op) => ({\n ...op,\n value: {\n ...op.value,\n newValue: op.value.oldValue,\n oldValue: op.value.newValue,\n },\n }),\n apply: (op, ctx: PluginContext) => {\n const linesManager = ctx.get(WorkflowLinesManager);\n const line = linesManager.getLineById(op.value.id);\n\n if (!line) {\n return;\n }\n\n line.lineData = op.value.newValue;\n },\n shouldMerge: (op, prev, element) => {\n if (!prev) {\n return false;\n }\n\n if (Date.now() - element.getTimestamp() < 500) {\n if (\n op.type === prev.type && // 相同类型\n op.value.id === prev.value.id // 相同节点\n ) {\n return {\n type: op.type,\n value: {\n ...op.value,\n newValue: op.value.newValue,\n oldValue: prev.value.oldValue,\n },\n };\n }\n return true;\n }\n return false;\n },\n };\n","/**\n * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates\n * SPDX-License-Identifier: MIT\n */\n\nimport { cloneDeep } from 'lodash-es';\nimport { type OperationMeta } from '@flowgram.ai/history';\nimport { WorkflowDocument, type WorkflowNodeJSON } from '@flowgram.ai/free-layout-core';\nimport { type PluginContext } from '@flowgram.ai/core';\n\nimport { type AddOrDeleteWorkflowNodeOperationValue, FreeOperationType } from '../types';\nimport { FreeHistoryConfig } from '../free-history-config';\nimport { baseOperationMeta } from './base';\n\nexport const addNodeOperationMeta: OperationMeta<\n AddOrDeleteWorkflowNodeOperationValue,\n PluginContext,\n void\n> = {\n ...baseOperationMeta,\n type: FreeOperationType.addNode,\n inverse: (op) => ({\n ...op,\n type: FreeOperationType.deleteNode,\n }),\n apply: async (operation, ctx: PluginContext) => {\n const document = ctx.get(WorkflowDocument);\n await document.createWorkflowNode(\n cloneDeep(operation.value.node) as WorkflowNodeJSON,\n false,\n operation.value.parentID\n );\n },\n getLabel: (op, ctx) => {\n const config = ctx.get(FreeHistoryConfig);\n return `Create Node ${config.getNodeLabel(op.value.node)}`;\n },\n getDescription: (op, ctx) => {\n const config = ctx.get(FreeHistoryConfig);\n let desc = `Create Node ${config.getNodeLabel(op.value.node)}`;\n if (op.value.node.meta?.position) {\n desc += ` at ${op.value.node.meta.position.x},${op.value.node.meta.position.y}`;\n }\n return desc;\n },\n};\n","/**\n * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates\n * SPDX-License-Identifier: MIT\n */\n\nimport { type PluginContext } from '@flowgram.ai/core';\nimport { WorkflowLinesManager } from '@flowgram.ai/free-layout-core';\nimport { type OperationMeta } from '@flowgram.ai/history';\n\nimport { type AddOrDeleteLineOperationValue, FreeOperationType } from '../types';\nimport { FreeHistoryConfig } from '../free-history-config';\nimport { baseOperationMeta } from './base';\n\nexport const addLineOperationMeta: OperationMeta<\n AddOrDeleteLineOperationValue,\n PluginContext,\n void\n> = {\n ...baseOperationMeta,\n type: FreeOperationType.addLine,\n inverse: op => ({\n ...op,\n type: FreeOperationType.deleteLine,\n }),\n apply: (operation, ctx: PluginContext) => {\n const linesManager = ctx.get(WorkflowLinesManager);\n linesManager.createLine({\n ...operation.value,\n key: operation.value.id,\n });\n },\n getLabel: (op, ctx) => 'Create Line',\n getDescription: (op, ctx) => {\n const config = ctx.get(FreeHistoryConfig);\n const { value } = op;\n if (!value.from || !value.to) {\n return 'Create Line';\n }\n\n const fromName = config.getNodeLabelById(value.from);\n const toName = config.getNodeLabelById(value.to);\n return `Create Line from ${fromName} to ${toName}`;\n },\n};\n","/**\n * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates\n * SPDX-License-Identifier: MIT\n */\n\nimport { resetLayoutOperationMeta } from './reset-layout';\nimport { moveChildNodesOperationMeta } from './move-child-nodes';\nimport { dragNodesOperationMeta } from './drag-nodes';\nimport { deleteNodeOperationMeta } from './delete-node';\nimport { deleteLineOperationMeta } from './delete-line';\nimport { changeLineDataOperationMeta } from './change-line-data';\nimport { addNodeOperationMeta } from './add-node';\nimport { addLineOperationMeta } from './add-line';\n\nexport const operationMetas = [\n addLineOperationMeta,\n deleteLineOperationMeta,\n addNodeOperationMeta,\n deleteNodeOperationMeta,\n resetLayoutOperationMeta,\n dragNodesOperationMeta,\n moveChildNodesOperationMeta,\n changeLineDataOperationMeta,\n];\n","/**\n * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates\n * SPDX-License-Identifier: MIT\n */\n\n/* eslint-disable @typescript-eslint/naming-convention */\nimport { injectable, inject } from 'inversify';\nimport { DisposableCollection } from '@flowgram.ai/utils';\nimport { HistoryService } from '@flowgram.ai/history';\nimport {\n WorkflowDocument,\n WorkflowResetLayoutService,\n WorkflowDragService,\n WorkflowOperationBaseService,\n} from '@flowgram.ai/free-layout-core';\nimport { OperationType } from '@flowgram.ai/document';\nimport { type PluginContext, PositionData } from '@flowgram.ai/core';\n\nimport { DragNodeOperationValue, type FreeHistoryPluginOptions, FreeOperationType } from './types';\nimport { HistoryEntityManager } from './history-entity-manager';\nimport { DragNodesHandler } from './handlers/drag-nodes-handler';\nimport { ChangeContentHandler } from './handlers/change-content-handler';\n\n/**\n * 历史管理\n */\n@injectable()\nexport class FreeHistoryManager {\n @inject(DragNodesHandler)\n private _dragNodesHandler: DragNodesHandler;\n\n @inject(ChangeContentHandler)\n private _changeContentHandler: ChangeContentHandler;\n\n @inject(HistoryEntityManager)\n private _entityManager: HistoryEntityManager;\n\n private _toDispose: DisposableCollection = new DisposableCollection();\n\n @inject(WorkflowOperationBaseService)\n private _operationService: WorkflowOperationBaseService;\n\n onInit(ctx: PluginContext, opts: FreeHistoryPluginOptions) {\n const document = ctx.get(WorkflowDocument);\n const historyService = ctx.get(HistoryService);\n const dragService = ctx.get(WorkflowDragService);\n\n const resetLayoutService = ctx.get(WorkflowResetLayoutService);\n\n if (opts?.limit) {\n historyService.limit(opts.limit);\n }\n historyService.context.source = ctx;\n\n this._toDispose.pushAll([\n dragService.onNodesDrag(async (event) => {\n if (event.type !== 'onDragEnd') {\n return;\n }\n this._dragNodesHandler.handle(event);\n }),\n document.onNodeCreate(({ node, data }) => {\n const positionData = node.getData(PositionData);\n if (positionData) {\n this._entityManager.addEntityData(positionData);\n }\n }),\n document.onContentChange((event) => {\n this._changeContentHandler.handle(event, ctx);\n }),\n document.onReload((_event) => {\n historyService.clear();\n }),\n resetLayoutService.onResetLayout((event) => {\n historyService.pushOperation(\n {\n type: FreeOperationType.resetLayout,\n value: {\n ids: event.nodeIds,\n value: event.positionMap,\n oldValue: event.oldPositionMap,\n },\n },\n { noApply: true }\n );\n }),\n this._operationService.onNodeMove(({ node, fromParent, fromIndex, toParent, toIndex }) => {\n historyService.pushOperation(\n {\n type: OperationType.moveChildNodes,\n value: {\n fromParentId: fromParent.id,\n fromIndex,\n nodeIds: [node.id],\n toParentId: toParent.id,\n toIndex,\n },\n },\n {\n noApply: true,\n }\n );\n }),\n this._operationService.onNodePostionUpdate((event) => {\n const value: DragNodeOperationValue = {\n ids: [event.node.id],\n value: [event.newPosition],\n oldValue: [event.oldPosition],\n };\n historyService.pushOperation(\n {\n type: FreeOperationType.dragNodes,\n value,\n },\n {\n noApply: true,\n }\n );\n }),\n ]);\n }\n\n dispose() {\n this._entityManager.dispose();\n this._toDispose.dispose();\n }\n}\n","/**\n * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates\n * SPDX-License-Identifier: MIT\n */\n\nimport { useEffect, useState } from 'react';\n\nimport { useService } from '@flowgram.ai/core';\nimport { HistoryService } from '@flowgram.ai/history';\n\ninterface UndoRedo {\n canUndo: boolean;\n canRedo: boolean;\n undo: () => Promise;\n redo: () => Promise;\n}\n\nexport function useUndoRedo(): UndoRedo {\n const historyService = useService(HistoryService);\n const [canUndo, setCanUndo] = useState(false);\n const [canRedo, setCanRedo] = useState(false);\n\n useEffect(() => {\n const toDispose = historyService.undoRedoService.onChange(() => {\n setCanUndo(historyService.canUndo());\n setCanRedo(historyService.canRedo());\n });\n return () => {\n toDispose.dispose();\n };\n }, []);\n\n return {\n canUndo,\n canRedo,\n undo: () => historyService.undo(),\n redo: () => historyService.redo(),\n };\n}\n"]}