dify/web/app/components/workflow/hooks/use-nodes-interactions.ts
2024-04-23 14:45:57 +08:00

864 lines
25 KiB
TypeScript

import { useCallback, useRef } from 'react'
import { useTranslation } from 'react-i18next'
import produce from 'immer'
import type {
HandleType,
NodeDragHandler,
NodeMouseHandler,
OnConnect,
OnConnectStart,
} from 'reactflow'
import {
getConnectedEdges,
getOutgoers,
useStoreApi,
} from 'reactflow'
import type { ToolDefaultValue } from '../block-selector/types'
import type {
Edge,
Node,
OnNodeAdd,
} from '../types'
import { BlockEnum } from '../types'
import { useWorkflowStore } from '../store'
import {
NODES_INITIAL_DATA,
NODE_WIDTH_X_OFFSET,
Y_OFFSET,
} from '../constants'
import {
generateNewNode,
getNodesConnectedSourceOrTargetHandleIdsMap,
} from '../utils'
import { useNodesExtraData } from './use-nodes-data'
import { useNodesSyncDraft } from './use-nodes-sync-draft'
import {
useNodesReadOnly,
useWorkflow,
} from './use-workflow'
export const useNodesInteractions = () => {
const { t } = useTranslation()
const store = useStoreApi()
const workflowStore = useWorkflowStore()
const nodesExtraData = useNodesExtraData()
const { handleSyncWorkflowDraft } = useNodesSyncDraft()
const {
getAfterNodesInSameBranch,
getTreeLeafNodes,
} = useWorkflow()
const { getNodesReadOnly } = useNodesReadOnly()
const dragNodeStartPosition = useRef({ x: 0, y: 0 } as { x: number; y: number })
const connectingNodeRef = useRef<{ nodeId: string; handleType: HandleType } | null>(null)
const handleNodeDragStart = useCallback<NodeDragHandler>((_, node) => {
workflowStore.setState({ nodeAnimation: false })
if (getNodesReadOnly())
return
dragNodeStartPosition.current = { x: node.position.x, y: node.position.y }
}, [workflowStore, getNodesReadOnly])
const handleNodeDrag = useCallback<NodeDragHandler>((e, node: Node) => {
if (getNodesReadOnly())
return
const {
getNodes,
setNodes,
} = store.getState()
const {
setHelpLineHorizontal,
setHelpLineVertical,
} = workflowStore.getState()
e.stopPropagation()
const nodes = getNodes()
const showHorizontalHelpLineNodes = nodes.filter((n) => {
if (n.id === node.id)
return false
const nY = Math.ceil(n.position.y)
const nodeY = Math.ceil(node.position.y)
if (nY - nodeY < 5 && nY - nodeY > -5)
return true
return false
}).sort((a, b) => a.position.x - b.position.x)
const showHorizontalHelpLineNodesLength = showHorizontalHelpLineNodes.length
if (showHorizontalHelpLineNodesLength > 0) {
const first = showHorizontalHelpLineNodes[0]
const last = showHorizontalHelpLineNodes[showHorizontalHelpLineNodesLength - 1]
const helpLine = {
top: first.position.y,
left: first.position.x,
width: last.position.x + last.width! - first.position.x,
}
if (node.position.x < first.position.x) {
helpLine.left = node.position.x
helpLine.width = first.position.x + first.width! - node.position.x
}
if (node.position.x > last.position.x)
helpLine.width = node.position.x + node.width! - first.position.x
setHelpLineHorizontal(helpLine)
}
else {
setHelpLineHorizontal()
}
const showVerticalHelpLineNodes = nodes.filter((n) => {
if (n.id === node.id)
return false
const nX = Math.ceil(n.position.x)
const nodeX = Math.ceil(node.position.x)
if (nX - nodeX < 5 && nX - nodeX > -5)
return true
return false
}).sort((a, b) => a.position.x - b.position.x)
const showVerticalHelpLineNodesLength = showVerticalHelpLineNodes.length
if (showVerticalHelpLineNodesLength > 0) {
const first = showVerticalHelpLineNodes[0]
const last = showVerticalHelpLineNodes[showVerticalHelpLineNodesLength - 1]
const helpLine = {
top: first.position.y,
left: first.position.x,
height: last.position.y + last.height! - first.position.y,
}
if (node.position.y < first.position.y) {
helpLine.top = node.position.y
helpLine.height = first.position.y + first.height! - node.position.y
}
if (node.position.y > last.position.y)
helpLine.height = node.position.y + node.height! - first.position.y
setHelpLineVertical(helpLine)
}
else {
setHelpLineVertical()
}
const newNodes = produce(nodes, (draft) => {
const currentNode = draft.find(n => n.id === node.id)!
currentNode.position = {
x: showVerticalHelpLineNodesLength > 0 ? showVerticalHelpLineNodes[0].position.x : node.position.x,
y: showHorizontalHelpLineNodesLength > 0 ? showHorizontalHelpLineNodes[0].position.y : node.position.y,
}
})
setNodes(newNodes)
}, [store, workflowStore, getNodesReadOnly])
const handleNodeDragStop = useCallback<NodeDragHandler>((_, node) => {
const {
setHelpLineHorizontal,
setHelpLineVertical,
} = workflowStore.getState()
if (getNodesReadOnly())
return
const { x, y } = dragNodeStartPosition.current
if (!(x === node.position.x && y === node.position.y)) {
setHelpLineHorizontal()
setHelpLineVertical()
handleSyncWorkflowDraft()
}
}, [handleSyncWorkflowDraft, workflowStore, getNodesReadOnly])
const handleNodeEnter = useCallback<NodeMouseHandler>((_, node) => {
if (getNodesReadOnly())
return
const {
getNodes,
setNodes,
edges,
setEdges,
} = store.getState()
const nodes = getNodes()
if (connectingNodeRef.current && connectingNodeRef.current.nodeId !== node.id) {
const connectingNode: Node = nodes.find(n => n.id === connectingNodeRef.current!.nodeId)!
const handleType = connectingNodeRef.current.handleType
const currentNodeIndex = nodes.findIndex(n => n.id === node.id)
const availablePrevNodes = nodesExtraData[connectingNode.data.type].availablePrevNodes
const availableNextNodes = nodesExtraData[connectingNode.data.type].availableNextNodes
const availableNodes = handleType === 'source' ? availableNextNodes : [...availablePrevNodes, BlockEnum.Start]
const newNodes = produce(nodes, (draft) => {
if (!availableNodes.includes(draft[currentNodeIndex].data.type))
draft[currentNodeIndex].data._isInvalidConnection = true
})
setNodes(newNodes)
}
const newEdges = produce(edges, (draft) => {
const connectedEdges = getConnectedEdges([node], edges)
connectedEdges.forEach((edge) => {
const currentEdge = draft.find(e => e.id === edge.id)
if (currentEdge)
currentEdge.data._connectedNodeIsHovering = true
})
})
setEdges(newEdges)
}, [store, nodesExtraData, getNodesReadOnly])
const handleNodeLeave = useCallback<NodeMouseHandler>(() => {
if (getNodesReadOnly())
return
const {
getNodes,
setNodes,
edges,
setEdges,
} = store.getState()
const newNodes = produce(getNodes(), (draft) => {
draft.forEach((node) => {
node.data._isInvalidConnection = false
})
})
setNodes(newNodes)
const newEdges = produce(edges, (draft) => {
draft.forEach((edge) => {
edge.data._connectedNodeIsHovering = false
})
})
setEdges(newEdges)
}, [store, getNodesReadOnly])
const handleNodeSelect = useCallback((nodeId: string, cancelSelection?: boolean) => {
if (getNodesReadOnly() && !workflowStore.getState().isRestoring)
return
const {
getNodes,
setNodes,
edges,
setEdges,
} = store.getState()
const nodes = getNodes()
const selectedNode = nodes.find(node => node.data.selected)
if (!cancelSelection && selectedNode?.id === nodeId)
return
const newNodes = produce(nodes, (draft) => {
draft.forEach((node) => {
if (node.id === nodeId)
node.data.selected = !cancelSelection
else
node.data.selected = false
})
})
setNodes(newNodes)
const connectedEdges = getConnectedEdges([{ id: nodeId } as Node], edges).map(edge => edge.id)
const newEdges = produce(edges, (draft) => {
draft.forEach((edge) => {
if (connectedEdges.includes(edge.id)) {
edge.data = {
...edge.data,
_connectedNodeIsSelected: !cancelSelection,
}
}
else {
edge.data = {
...edge.data,
_connectedNodeIsSelected: false,
}
}
})
})
setEdges(newEdges)
handleSyncWorkflowDraft()
}, [store, handleSyncWorkflowDraft, getNodesReadOnly, workflowStore])
const handleNodeClick = useCallback<NodeMouseHandler>((_, node) => {
if (getNodesReadOnly() && !workflowStore.getState().isRestoring)
return
handleNodeSelect(node.id)
}, [handleNodeSelect, getNodesReadOnly, workflowStore])
const handleNodeConnect = useCallback<OnConnect>(({
source,
sourceHandle,
target,
targetHandle,
}) => {
if (source === target)
return
if (getNodesReadOnly())
return
const {
getNodes,
setNodes,
edges,
setEdges,
} = store.getState()
const nodes = getNodes()
const targetNode = nodes.find(node => node.id === target!)
if (targetNode && targetNode?.data.type === BlockEnum.VariableAssigner) {
const treeNodes = getTreeLeafNodes(target!)
if (!treeNodes.find(treeNode => treeNode.id === source))
return
}
const needDeleteEdges = edges.filter((edge) => {
if (edge.source === source) {
if (edge.sourceHandle)
return edge.sourceHandle === sourceHandle
else
return true
}
if (edge.target === target) {
if (edge.targetHandle)
return edge.targetHandle === targetHandle
else
return true
}
return false
})
const needDeleteEdgesIds = needDeleteEdges.map(edge => edge.id)
const newEdge = {
id: `${source}-${target}`,
type: 'custom',
source: source!,
target: target!,
sourceHandle,
targetHandle,
data: {
sourceType: nodes.find(node => node.id === source)!.data.type,
targetType: nodes.find(node => node.id === target)!.data.type,
},
}
const nodesConnectedSourceOrTargetHandleIdsMap = getNodesConnectedSourceOrTargetHandleIdsMap(
[
...needDeleteEdges.map(edge => ({ type: 'remove', edge })),
{ type: 'add', edge: newEdge },
],
nodes,
)
const newNodes = produce(nodes, (draft: Node[]) => {
draft.forEach((node) => {
if (nodesConnectedSourceOrTargetHandleIdsMap[node.id]) {
node.data = {
...node.data,
...nodesConnectedSourceOrTargetHandleIdsMap[node.id],
}
}
})
})
setNodes(newNodes)
const newEdges = produce(edges, (draft) => {
const filtered = draft.filter(edge => !needDeleteEdgesIds.includes(edge.id))
filtered.push(newEdge)
return filtered
})
setEdges(newEdges)
handleSyncWorkflowDraft()
}, [store, handleSyncWorkflowDraft, getNodesReadOnly, getTreeLeafNodes])
const handleNodeConnectStart = useCallback<OnConnectStart>((_, { nodeId, handleType }) => {
if (nodeId && handleType) {
connectingNodeRef.current = {
nodeId,
handleType,
}
}
}, [])
const handleNodeConnectEnd = useCallback(() => {
connectingNodeRef.current = null
}, [])
const handleNodeDelete = useCallback((nodeId: string) => {
if (getNodesReadOnly())
return
const {
getNodes,
setNodes,
edges,
setEdges,
} = store.getState()
const nodes = getNodes()
const currentNodeIndex = nodes.findIndex(node => node.id === nodeId)
if (nodes[currentNodeIndex].data.type === BlockEnum.Start)
return
const connectedEdges = getConnectedEdges([{ id: nodeId } as Node], edges)
const nodesConnectedSourceOrTargetHandleIdsMap = getNodesConnectedSourceOrTargetHandleIdsMap(connectedEdges.map(edge => ({ type: 'remove', edge })), nodes)
const newNodes = produce(nodes, (draft: Node[]) => {
draft.forEach((node) => {
if (nodesConnectedSourceOrTargetHandleIdsMap[node.id]) {
node.data = {
...node.data,
...nodesConnectedSourceOrTargetHandleIdsMap[node.id],
}
}
})
draft.splice(currentNodeIndex, 1)
})
setNodes(newNodes)
const newEdges = produce(edges, (draft) => {
return draft.filter(edge => !connectedEdges.find(connectedEdge => connectedEdge.id === edge.id))
})
setEdges(newEdges)
handleSyncWorkflowDraft()
}, [store, handleSyncWorkflowDraft, getNodesReadOnly])
const handleNodeAdd = useCallback<OnNodeAdd>((
{
nodeType,
sourceHandle = 'source',
targetHandle = 'target',
toolDefaultValue,
},
{
prevNodeId,
prevNodeSourceHandle,
nextNodeId,
nextNodeTargetHandle,
},
) => {
if (getNodesReadOnly())
return
if (nodeType === BlockEnum.VariableAssigner)
targetHandle = 'varNotSet'
const {
getNodes,
setNodes,
edges,
setEdges,
} = store.getState()
const nodes = getNodes()
const nodesWithSameType = nodes.filter(node => node.data.type === nodeType)
const newNode = generateNewNode({
data: {
...NODES_INITIAL_DATA[nodeType],
title: nodesWithSameType.length > 0 ? `${t(`workflow.blocks.${nodeType}`)} ${nodesWithSameType.length + 1}` : t(`workflow.blocks.${nodeType}`),
...(toolDefaultValue || {}),
selected: true,
},
position: {
x: 0,
y: 0,
},
})
if (prevNodeId && !nextNodeId) {
const prevNodeIndex = nodes.findIndex(node => node.id === prevNodeId)
const prevNode = nodes[prevNodeIndex]
const outgoers = getOutgoers(prevNode, nodes, edges).sort((a, b) => a.position.y - b.position.y)
const lastOutgoer = outgoers[outgoers.length - 1]
if (prevNode.data.type === BlockEnum.KnowledgeRetrieval)
targetHandle = prevNodeId
newNode.data._connectedTargetHandleIds = [targetHandle]
newNode.data._connectedSourceHandleIds = []
newNode.position = {
x: lastOutgoer ? lastOutgoer.position.x : prevNode.position.x + NODE_WIDTH_X_OFFSET,
y: lastOutgoer ? lastOutgoer.position.y + lastOutgoer.height! + Y_OFFSET : prevNode.position.y,
}
const newEdge = {
id: `${prevNodeId}-${newNode.id}`,
type: 'custom',
source: prevNodeId,
sourceHandle: prevNodeSourceHandle,
target: newNode.id,
targetHandle,
data: {
sourceType: prevNode.data.type,
targetType: newNode.data.type,
_connectedNodeIsSelected: true,
},
}
const newNodes = produce(nodes, (draft: Node[]) => {
draft.forEach((node) => {
node.data.selected = false
if (node.id === prevNode.id)
node.data._connectedSourceHandleIds?.push(prevNodeSourceHandle!)
})
draft.push(newNode)
})
setNodes(newNodes)
const newEdges = produce(edges, (draft) => {
draft.forEach((item) => {
item.data = {
...item.data,
_connectedNodeIsSelected: false,
}
})
draft.push(newEdge)
})
setEdges(newEdges)
}
if (!prevNodeId && nextNodeId) {
const nextNodeIndex = nodes.findIndex(node => node.id === nextNodeId)
const nextNode = nodes[nextNodeIndex]!
newNode.data._connectedSourceHandleIds = [sourceHandle]
newNode.data._connectedTargetHandleIds = []
newNode.position = {
x: nextNode.position.x,
y: nextNode.position.y,
}
const newEdge = {
id: `${newNode.id}-${nextNodeId}`,
type: 'custom',
source: newNode.id,
sourceHandle,
target: nextNodeId,
targetHandle: nextNodeTargetHandle,
data: {
sourceType: newNode.data.type,
targetType: nextNode.data.type,
_connectedNodeIsSelected: true,
},
}
const afterNodesInSameBranch = getAfterNodesInSameBranch(nextNodeId!)
const afterNodesInSameBranchIds = afterNodesInSameBranch.map(node => node.id)
const newNodes = produce(nodes, (draft) => {
draft.forEach((node) => {
node.data.selected = false
if (afterNodesInSameBranchIds.includes(node.id))
node.position.x += NODE_WIDTH_X_OFFSET
if (node.id === nextNodeId)
node.data._connectedTargetHandleIds?.push(nextNodeTargetHandle!)
})
draft.push(newNode)
})
setNodes(newNodes)
const newEdges = produce(edges, (draft) => {
draft.forEach((item) => {
item.data = {
...item.data,
_connectedNodeIsSelected: false,
}
})
draft.push(newEdge)
})
setEdges(newEdges)
}
if (prevNodeId && nextNodeId) {
const prevNode = nodes.find(node => node.id === prevNodeId)!
const nextNode = nodes.find(node => node.id === nextNodeId)!
if (prevNode.data.type === BlockEnum.KnowledgeRetrieval)
targetHandle = prevNodeId
newNode.data._connectedTargetHandleIds = [targetHandle]
newNode.data._connectedSourceHandleIds = [sourceHandle]
newNode.position = {
x: nextNode.position.x,
y: nextNode.position.y,
}
const currentEdgeIndex = edges.findIndex(edge => edge.source === prevNodeId && edge.target === nextNodeId)
const newPrevEdge = {
id: `${prevNodeId}-${newNode.id}`,
type: 'custom',
source: prevNodeId,
sourceHandle: prevNodeSourceHandle,
target: newNode.id,
targetHandle,
data: {
sourceType: prevNode.data.type,
targetType: newNode.data.type,
_connectedNodeIsSelected: true,
},
}
let newNextEdge: Edge | null = null
if (nodeType !== BlockEnum.IfElse && nodeType !== BlockEnum.QuestionClassifier) {
newNextEdge = {
id: `${newNode.id}-${nextNodeId}`,
type: 'custom',
source: newNode.id,
sourceHandle,
target: nextNodeId,
targetHandle: nextNodeTargetHandle,
data: {
sourceType: newNode.data.type,
targetType: nextNode.data.type,
_connectedNodeIsSelected: true,
},
}
}
const nodesConnectedSourceOrTargetHandleIdsMap = getNodesConnectedSourceOrTargetHandleIdsMap(
[
{ type: 'remove', edge: edges[currentEdgeIndex] },
{ type: 'add', edge: newPrevEdge },
...(newNextEdge ? [{ type: 'add', edge: newNextEdge }] : []),
],
[...nodes, newNode],
)
const afterNodesInSameBranch = getAfterNodesInSameBranch(nextNodeId!)
const afterNodesInSameBranchIds = afterNodesInSameBranch.map(node => node.id)
const newNodes = produce(nodes, (draft) => {
draft.forEach((node) => {
node.data.selected = false
if (nodesConnectedSourceOrTargetHandleIdsMap[node.id]) {
node.data = {
...node.data,
...nodesConnectedSourceOrTargetHandleIdsMap[node.id],
}
}
if (afterNodesInSameBranchIds.includes(node.id))
node.position.x += NODE_WIDTH_X_OFFSET
})
draft.push(newNode)
})
setNodes(newNodes)
const newEdges = produce(edges, (draft) => {
draft.splice(currentEdgeIndex, 1)
draft.forEach((item) => {
item.data = {
...item.data,
_connectedNodeIsSelected: false,
}
})
draft.push(newPrevEdge)
if (newNextEdge)
draft.push(newNextEdge)
})
setEdges(newEdges)
}
handleSyncWorkflowDraft()
}, [store, handleSyncWorkflowDraft, getAfterNodesInSameBranch, getNodesReadOnly, t])
const handleNodeChange = useCallback((
currentNodeId: string,
nodeType: BlockEnum,
sourceHandle: string,
toolDefaultValue?: ToolDefaultValue,
) => {
if (getNodesReadOnly())
return
const {
getNodes,
setNodes,
edges,
setEdges,
} = store.getState()
const nodes = getNodes()
const currentNode = nodes.find(node => node.id === currentNodeId)!
const connectedEdges = getConnectedEdges([currentNode], edges)
const nodesWithSameType = nodes.filter(node => node.data.type === nodeType)
const newCurrentNode = generateNewNode({
data: {
...NODES_INITIAL_DATA[nodeType],
title: nodesWithSameType.length > 0 ? `${t(`workflow.blocks.${nodeType}`)} ${nodesWithSameType.length + 1}` : t(`workflow.blocks.${nodeType}`),
...(toolDefaultValue || {}),
_connectedSourceHandleIds: [],
_connectedTargetHandleIds: [],
selected: currentNode.data.selected,
},
position: {
x: currentNode.position.x,
y: currentNode.position.y,
},
})
const nodesConnectedSourceOrTargetHandleIdsMap = getNodesConnectedSourceOrTargetHandleIdsMap(
[
...connectedEdges.map(edge => ({ type: 'remove', edge })),
],
nodes,
)
const newNodes = produce(nodes, (draft) => {
draft.forEach((node) => {
node.data.selected = false
if (nodesConnectedSourceOrTargetHandleIdsMap[node.id]) {
node.data = {
...node.data,
...nodesConnectedSourceOrTargetHandleIdsMap[node.id],
}
}
})
const index = draft.findIndex(node => node.id === currentNodeId)
draft.splice(index, 1, newCurrentNode)
})
setNodes(newNodes)
const newEdges = produce(edges, (draft) => {
const filtered = draft.filter(edge => !connectedEdges.find(connectedEdge => connectedEdge.id === edge.id))
return filtered
})
setEdges(newEdges)
handleSyncWorkflowDraft()
}, [store, handleSyncWorkflowDraft, getNodesReadOnly, t])
const handleNodeCopySelected = useCallback((): undefined | Node[] => {
if (getNodesReadOnly())
return
const {
setClipboardElements,
shortcutsDisabled,
} = workflowStore.getState()
if (shortcutsDisabled)
return
const {
getNodes,
} = store.getState()
const nodes = getNodes()
const nodesToCopy = nodes.filter(node => node.data.selected && node.data.type !== BlockEnum.Start)
setClipboardElements(nodesToCopy)
return nodesToCopy
}, [getNodesReadOnly, store, workflowStore])
const handleNodePaste = useCallback((): undefined | Node[] => {
if (getNodesReadOnly())
return
const {
clipboardElements,
shortcutsDisabled,
} = workflowStore.getState()
if (shortcutsDisabled)
return
const {
getNodes,
setNodes,
} = store.getState()
const nodesToPaste: Node[] = []
const nodes = getNodes()
for (const nodeToPaste of clipboardElements) {
const nodeType = nodeToPaste.data.type
const nodesWithSameType = nodes.filter(node => node.data.type === nodeType)
const newNode = generateNewNode({
data: {
...NODES_INITIAL_DATA[nodeType],
...nodeToPaste.data,
_connectedSourceHandleIds: [],
_connectedTargetHandleIds: [],
title: nodesWithSameType.length > 0 ? `${t(`workflow.blocks.${nodeType}`)} ${nodesWithSameType.length + 1}` : t(`workflow.blocks.${nodeType}`),
selected: true,
},
position: {
x: nodeToPaste.position.x + 10,
y: nodeToPaste.position.y + 10,
},
})
nodesToPaste.push(newNode)
}
setNodes([...nodes.map((n: Node) => ({ ...n, selected: false, data: { ...n.data, selected: false } })), ...nodesToPaste])
handleSyncWorkflowDraft()
return nodesToPaste
}, [getNodesReadOnly, handleSyncWorkflowDraft, store, t, workflowStore])
const handleNodeDuplicateSelected = useCallback(() => {
if (getNodesReadOnly())
return
handleNodeCopySelected()
handleNodePaste()
}, [getNodesReadOnly, handleNodeCopySelected, handleNodePaste])
const handleNodeCut = useCallback(() => {
if (getNodesReadOnly())
return
const nodesToCut = handleNodeCopySelected()
if (!nodesToCut)
return
for (const node of nodesToCut)
handleNodeDelete(node.id)
}, [getNodesReadOnly, handleNodeCopySelected, handleNodeDelete])
const handleNodeDeleteSelected = useCallback(() => {
if (getNodesReadOnly())
return
const {
shortcutsDisabled,
} = workflowStore.getState()
if (shortcutsDisabled)
return
const {
getNodes,
edges,
} = store.getState()
const currentEdgeIndex = edges.findIndex(edge => edge.selected)
if (currentEdgeIndex > -1)
return
const nodes = getNodes()
const nodesToDelete = nodes.filter(node => node.data.selected)
if (!nodesToDelete)
return
for (const node of nodesToDelete)
handleNodeDelete(node.id)
}, [getNodesReadOnly, handleNodeDelete, store, workflowStore])
return {
handleNodeDragStart,
handleNodeDrag,
handleNodeDragStop,
handleNodeEnter,
handleNodeLeave,
handleNodeSelect,
handleNodeClick,
handleNodeConnect,
handleNodeConnectStart,
handleNodeConnectEnd,
handleNodeDelete,
handleNodeChange,
handleNodeAdd,
handleNodeDuplicateSelected,
handleNodeCopySelected,
handleNodeCut,
handleNodeDeleteSelected,
handleNodePaste,
}
}