@logicflow/extension/src/bpmn/gateways/ExclusiveGateway.ts

LogicFlow Extensions

import LogicFlow, {
  h,
  GraphModel,
  PolygonNode,
  PolygonNodeModel,
} from '@logicflow/core'
import { getBpmnId } from '../getBpmnId'

import NodeConfig = LogicFlow.NodeConfig

export class ExclusiveGatewayModel extends PolygonNodeModel {
  static extendKey = 'ExclusiveGatewayModel'

  constructor(data: NodeConfig, graphModel: GraphModel) {
    if (!data.id) {
      data.id = `Gateway_${getBpmnId()}`
    }
    if (!data.text) {
      data.text = ''
    }
    if (data.text && typeof data.text === 'string') {
      data.text = {
        value: data.text,
        x: data.x,
        y: data.y + 40,
      }
    }
    super(data, graphModel)
    this.points = [
      [25, 0],
      [50, 25],
      [25, 50],
      [0, 25],
    ]
  }
}

export class ExclusiveGatewayView extends PolygonNode {
  static extendKey = 'ExclusiveGatewayNode'

  getShape(): h.JSX.Element {
    const { model } = this.props
    const { x, y, width, height, points } = model as PolygonNodeModel
    const style = model.getNodeStyle()
    return h(
      'g',
      {
        transform: `matrix(1 0 0 1 ${x - width / 2} ${y - height / 2})`,
      },
      // @ts-ignore TODO: 确认 h('polygon') 报错的问题
      h('polygon', {
        ...style,
        x,
        y,
        points,
      }),
      h('path', {
        d: 'm 16,15 7.42857142857143,9.714285714285715 -7.42857142857143,9.714285714285715 3.428571428571429,0 5.714285714285715,-7.464228571428572 5.714285714285715,7.464228571428572 3.428571428571429,0 -7.42857142857143,-9.714285714285715 7.42857142857143,-9.714285714285715 -3.428571428571429,0 -5.714285714285715,7.464228571428572 -5.714285714285715,-7.464228571428572 -3.428571428571429,0 z',
        ...style,
      }),
    )
  }
}

export const ExclusiveGateway = {
  type: 'bpmn:exclusiveGateway',
  view: ExclusiveGatewayView,
  model: ExclusiveGatewayModel,
}

export default ExclusiveGateway