@logicflow/extension/src/bpmn-elements/utils.ts

LogicFlow Extensions

/* eslint-disable no-bitwise */
export function groupRule(this: any) {
  const rule = {
    message: '分组外的节点不允许连接分组内的',
    validate: (
      _sourceNode: any,
      _targetNode: any,
      // _sourceAnchor: any,
      // _targetAnchor: any,
    ) => {
      const isSourceNodeInsideTheGroup = !!_sourceNode.properties.parent
      const isTargetNodeInsideTheGroup = !!_targetNode.properties.parent

      return !(!isSourceNodeInsideTheGroup && isTargetNodeInsideTheGroup)
    },
  }
  this.targetRules.push(rule)
}

/* eslint-disable no-bitwise */
class IDs {
  private _ids: Set<string>

  constructor() {
    globalThis._ids = this
    this._ids = new Set()
  }

  generateId() {
    const id = 'xxxxxxx'.replace(/[x]/g, (c) => {
      const r = (Math.random() * 16) | 0
      const v = c === 'x' ? r : (r & 0x3) | 0x8
      return v.toString(16)
    })
    return id
  }

  next() {
    let id = this.generateId()
    while (this._ids.has(id)) {
      id = this.generateId()
    }
    this._ids.add(id)
    return id
  }
}

const ids = globalThis?._ids || new IDs()

export function genBpmnId(): string {
  return ids.next()
}