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* Copyright 2021 Harness Inc. All rights reserved.
* Use of this source code is governed by the PolyForm Shield 1.0.0 license
* that can be found in the licenses directory at the root of this repository, also available at
* https://polyformproject.org/wp-content/uploads/2020/06/PolyForm-Shield-1.0.0.txt.
*/
import type {
DiagramModelOptions as DiagramModelCoreOptions,
BaseModel,
LayerModel
} from '@projectstorm/react-canvas-core'
import { isNil } from 'lodash-es'
import {
DiagramModel as DiagramModelCore,
DiagramModelGenerics as DiagramModelGenericsCore,
NodeLayerModel,
PortModel,
PortModelGenerics
} from '@projectstorm/react-diagrams-core'
import type { Point } from '@projectstorm/geometry'
import { DefaultLinkModel } from '../link/DefaultLinkModel'
import { DefaultNodeModel } from '../node/DefaultNodeModel'
import { StepGroupNodeLayerModel } from '../node-layer/StepGroupNodeLayerModel'
import { EmptyNodeModel } from '../node/EmptyNode/EmptyNodeModel'
import { PortName } from '../Constants'
import css from './DiagramModel.module.scss'
export interface DiagramModelOptions extends DiagramModelCoreOptions {
autoPosition?: boolean
startX?: number
startY?: number
gapX?: number
gapY?: number
}
export interface DiagramModelGenerics extends DiagramModelGenericsCore {
OPTIONS: DiagramModelOptions
}
export class DiagramModel<G extends DiagramModelGenerics = DiagramModelGenerics> extends DiagramModelCore<G> {
autoPosition: boolean
startX: number
startY: number
gapX: number
gapY: number
stepGroupLayers: StepGroupNodeLayerModel[] = []
constructor(options: G['OPTIONS'] = {}) {
super(options)
options.gridSize = 100
this.autoPosition = options.autoPosition || true
this.startX = options.startX || 100
this.startY = options.startY || 100
this.gapX = options.gapX || 200
this.gapY = options.gapY || 140
this.stepGroupLayers = []
}
clearAllLinksForNodeAndNode(id: string): void {
const node = this.getNodeFromId(id)
if (node) {
const ports = node.getPorts()
for (const portKey in ports) {
const port = ports[portKey]
const links = port.getLinks()
for (const keyLink in links) {
const link = links[keyLink]
link.getSourcePort().removeLink(link)
link.getTargetPort().removeLink(link)
this.removeLink(link)
}
}
this.removeNode(node)
}
}
clearLinksForPort(port: PortModel<PortModelGenerics>): void {
const links = port.getLinks()
for (const keyLink in links) {
const link = links[keyLink]
link.getSourcePort().removeLink(link)
link.getTargetPort().removeLink(link)
this.removeLink(link)
}
}
clearAllLinksForGroupLayer(id: string): void {
const layer = this.getGroupLayer(id)
Eif (layer) {
const groupNodes = layer.getNodes()
this.clearAllLinksForNodeAndNode(layer.startNode.getID())
this.clearAllLinksForNodeAndNode(layer.endNode.getID())
for (const key in groupNodes) {
const node = groupNodes[key]
this.clearAllLinksForNodeAndNode(node.getID())
}
this.stepGroupLayers.splice(
this.stepGroupLayers.findIndex(item => item.getID() === id),
1
)
layer.remove()
}
}
clearAllLinks(): void {
const linkLayers = this.getLinkLayers()
for (const layerKey in linkLayers) {
const linkLayer = linkLayers[layerKey]
const links = linkLayer.getLinks()
for (const key in links) {
const link = links[key]
this.removeLink(link)
}
}
}
clearAllListeners(): void {
const nodeLayers = this.getNodeLayers()
for (const key in nodeLayers) {
const nodeLayer = nodeLayers[key]
nodeLayer.clearListeners()
const nodes = nodeLayer.getNodes()
for (const nodeKey in nodes) {
nodes[nodeKey].clearListeners()
}
}
const linkLayers = this.getLinkLayers()
for (const layerKey in linkLayers) {
const linkLayer = linkLayers[layerKey]
linkLayer.clearListeners()
const links = linkLayer.getLinks()
for (const key in links) {
const link = links[key]
link.clearListeners()
}
}
this.stepGroupLayers.forEach(layer => {
layer.clearListeners()
})
}
clearAllNodesAndLinks(): void {
this.clearAllLinks()
const nodeLayers = this.getNodeLayers()
for (const key in nodeLayers) {
const nodeLayer = nodeLayers[key]
const nodes = nodeLayer.getNodes()
for (const nodeKey in nodes) {
this.removeNode(nodes[nodeKey])
}
}
this.stepGroupLayers.forEach(layer => {
layer.clearListeners()
layer.remove()
})
this.stepGroupLayers = []
}
addLayer(layer: LayerModel): void {
super.addLayer(layer)
this.layers = this.layers.sort((lay: LayerModel) => (lay.getOptions().isSvg ? 1 : -1))
}
useStepGroupLayer(stepGroupLayers: StepGroupNodeLayerModel): void {
if (this.stepGroupLayers.indexOf(stepGroupLayers) === -1) {
this.stepGroupLayers.push(stepGroupLayers)
this.addLayer(stepGroupLayers)
}
this.activeNodeLayer = stepGroupLayers as any
}
useNormalLayer(): void {
const layers = this.getNodeLayers()
layers.forEach(layer => {
Eif (layer instanceof NodeLayerModel) {
this.activeNodeLayer = layer
}
})
}
checkNodeNotAdded(node: DefaultNodeModel | undefined): boolean {
const nodeId = node?.getID()
const nodeRendered = this.getNode(nodeId || '')
return isNil(nodeRendered)
}
protected connectedParentToNode(
node: DefaultNodeModel,
parent: DefaultNodeModel,
allowAdd = true,
strokeDasharray = 0,
color = 'var(--diagram-link)',
maxLinePartLength?: { type: 'in' | 'out'; size: number }
): void {
const inPort = node.getPort(PortName.In) || node.addInPort(PortName.In)
const links = inPort.getLinks()
let isConnectedToParent = false
for (const linkId in links) {
const link = links[linkId] as DefaultLinkModel
const nodeId = link.getSourcePort().getNode().getID()
if (nodeId === parent.getID()) {
isConnectedToParent = true
link.setColorOfLink(color)
}
}
// NOTE: parent.getOutPorts().length === 0 solve the issue with missing line at the end of graph
if (!isConnectedToParent || parent.getOutPorts().length === 0) {
const parentPort = parent.getPort(PortName.Out) || parent.addOutPort(PortName.Out)
Eif (parentPort && inPort) {
const link = new DefaultLinkModel({ allowAdd, strokeDasharray, color, maxLinePartLength: maxLinePartLength })
link.setSourcePort(parentPort)
link.setTargetPort(inPort)
inPort.reportPosition()
parentPort.reportPosition()
this.addLink(link)
}
}
}
protected connectMultipleParentsToNode(
node: DefaultNodeModel,
parents: DefaultNodeModel[],
allowAdd = true,
strokeDasharray = 0,
color = 'var(--diagram-link)',
maxLinePartLength?: { type: 'in' | 'out'; size: number }
): void {
let highestMidX = 0
parents.forEach(parent => {
const inPort = node.getPort(PortName.In) || node.addInPort(PortName.In)
const parentPort = parent.getPort(PortName.Out) || parent.addOutPort(PortName.Out)
const midX =
parent instanceof EmptyNodeModel
? (inPort.getPosition().x + parentPort.getPosition().x) / 2
: (inPort.getPosition().x + parentPort.getPosition().x + this.gapX / 2) / 2
if (midX > highestMidX) {
highestMidX = midX
}
})
parents.forEach(parent => {
this.connectedParentToNode(node, parent, allowAdd, strokeDasharray, color, maxLinePartLength)
})
}
getNodeLinkAtPosition(position: Point): BaseModel | undefined {
const nodes = this.getActiveNodeLayer().getNodes()
const nearByNodes: DefaultNodeModel[] = []
for (const key in nodes) {
const node = nodes[key] as DefaultNodeModel
const dom = document.querySelector(`[data-nodeid="${node.getID()}"]`)
if (node.getBoundingBox().containsPoint(position)) {
nearByNodes.push(node)
}
dom?.classList.remove(css.selected)
}
const links = this.getActiveLinkLayer().getLinks()
const nearByLinks: DefaultLinkModel[] = []
for (const key in links) {
const link = links[key] as DefaultLinkModel
const dom = document.querySelector(`[data-linkid="${link.getID()}"]`)
if (link.getBoundingBox().containsPoint(position)) {
nearByLinks.push(link)
}
dom?.classList.remove(css.selectedLink)
}
if (nearByNodes.length === 1) {
return nearByNodes[0]
} else if (nearByLinks.length === 1) {
return nearByLinks[0]
}
return undefined
}
highlightNodesAndLink(position: Point): BaseModel | undefined {
const nodeLink = this.getNodeLinkAtPosition(position)
if (nodeLink instanceof DefaultNodeModel) {
const dom = document.querySelector(`[data-nodeid="${nodeLink.getID()}"]`)
dom?.classList.add(css.selected)
} else if (nodeLink instanceof DefaultLinkModel) {
const dom = document.querySelector(`[data-linkid="${nodeLink.getID()}"]`)
dom?.classList.add(css.selectedLink)
}
return nodeLink
}
getGroupLayer(id: string): StepGroupNodeLayerModel | undefined {
return this.stepGroupLayers.filter(layer => layer.getID() === id)[0]
}
getNodeFromId(id: string): DefaultNodeModel | undefined {
let node: DefaultNodeModel | undefined = undefined
this.layers.forEach(layer => {
if (layer instanceof NodeLayerModel || layer instanceof StepGroupNodeLayerModel) {
const nodes = layer.getNodes()
if (nodes[id]) {
node = nodes[id]
}
}
})
return node
}
}
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