admin-sjzx/src/views/system/bpm/model/editor/index.vue

<template>
  <ContentWrap>
    <!-- 流程设计器，负责绘制流程等 -->
    <MyProcessDesigner
        key='designer'
        v-if='xmlString !== undefined'
        v-model='xmlString'
        :value='xmlString'
        v-bind='controlForm'
        keyboard
        ref='processDesigner'
        @init-finished='initModeler'
        :additionalModel='controlForm.additionalModel'
        @save='save'
    />
    <!-- 流程属性器，负责编辑每个流程节点的属性 -->
    <MyProcessPenal
        key='penal'
        :bpmnModeler='modeler as any'
        :prefix='controlForm.prefix'
        class='process-panel'
        :model='model'
    />
  </ContentWrap>
</template>

<script lang='ts' setup>
import ContentWrap from '@/components/ContentWrap/src/ContentWrap.vue'
import { onMounted, provide, ref } from 'vue'
import { ElMessage } from 'element-plus'
import { useRoute, useRouter } from 'vue-router'
import { MyProcessDesigner, MyProcessPenal } from '@/components/bpmnProcessDesigner/package'
// 自定义元素选中时的弹出菜单（修改 默认任务 为 用户任务）
import CustomContentPadProvider from '@/components/bpmnProcessDesigner/package/designer/plugins/content-pad'
// 自定义左侧菜单（修改 默认任务 为 用户任务）
import CustomPaletteProvider from '@/components/bpmnProcessDesigner/package/designer/plugins/palette'
import { addModel, getById, updateModel } from '@/api/bpm-boot/model'

defineOptions({ name: 'BpmModelEditor' })

const { push, currentRoute, go } = useRouter() // 路由
const { query } = useRoute() // 路由信息


const xmlString = ref(undefined) // BPMN XML
const modeler = ref(null) // BPMN Modeler
const controlForm = ref({
  simulation: true,
  labelEditing: false,
  labelVisible: false,
  prefix: 'flowable',
  headerButtonSize: 'mini',
  additionalModel: [CustomContentPadProvider, CustomPaletteProvider]
})

type ProcessDefinitionVO = {
  id: string
  version: number
  deploymentTIme: string
  suspensionState: number
}

type ModelVO = {
  id: number
  formName: string
  key: string
  name: string
  description: string
  category: string
  formType: number
  formId: number
  formCustomCreatePath: string
  formCustomViewPath: string
  processDefinition: ProcessDefinitionVO
  status: number
  remark: string
  createTime: string
  bpmnXml: string
}


const model = ref<ModelVO>() // 流程模型的信息

/** 初始化 modeler */
const initModeler = (item: any) => {
  setTimeout(() => {
    modeler.value = item
  }, 10)
}

/** 添加/修改模型 */
const save = async (bpmnXml: any) => {
  const data = {
    ...model.value,
    bpmnXml: bpmnXml // bpmnXml 只是初始化流程图，后续修改无法通过它获得
  } as unknown as ModelVO
  // 提交
  if (data.id) {
    await updateModel(data)
    ElMessage.success('修改成功')
  } else {
    await addModel(data)
    ElMessage.success('新增成功')
  }
  // 跳转回去
  go(-1)
}


/** 初始化 */
onMounted(async () => {
  const modelId = query.modelId as unknown as string
  if (!modelId) {
    ElMessage.error('缺少模型 modelId 编号')
    return
  }
  // 查询模型
  let data = {
    bpmnXml: '',
    key: '',
    name: ''
  }
  await getById(modelId).then(res => {
    data = res.data
  })
  if (!data.bpmnXml) {
    // 首次创建的 Model 模型，它是没有 bpmnXml，此时需要给它一个默认的
    data.bpmnXml = ` <?xml version="1.0" encoding="UTF-8"?>
<definitions xmlns="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:xsd="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.activiti.org/processdef">
  <process id="${data.key}" name="${data.name}" isExecutable="true" />
  <bpmndi:BPMNDiagram id="BPMNDiagram">
    <bpmndi:BPMNPlane id="${data.key}_di" bpmnElement="${data.key}" />
  </bpmndi:BPMNDiagram>
</definitions>`
  }
  model.value = {
    ...data,
    bpmnXml: undefined // 清空 bpmnXml 属性
  }
  xmlString.value = data.bpmnXml
})
</script>
<style lang='scss'>
.process-panel__container {
  position: absolute;
  top: 190px;
  right: 20px;
}
</style>