perf: bpm 流程模型表单代码优化. 去掉大量watch 代码. 用依赖注入替换props 传递流程数据. 增加导入导出

src/views/bpm/model/editor/index.vue

@@ -3,6 +3,7 @@
     <!-- 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"
@@ -15,7 +16,7 @@
     />
     <!-- 流程属性器，负责编辑每个流程节点的属性 -->
     <MyProcessPenal
-      v-if="isModelerReady && modeler"
+      v-if="modeler"
       key="penal"
       :bpmnModeler="modeler"
       :prefix="controlForm.prefix"
@@ -37,8 +38,8 @@ defineOptions({ name: 'BpmModelEditor' })
 
 const props = defineProps<{
   modelId?: string
-  modelKey?: string
-  modelName?: string
+  modelKey: string
+  modelName: string
   value?: string
 }>()
 
@@ -51,10 +52,11 @@ const formType = ref(20)
 provide('formFields', formFields)
 provide('formType', formType)
 
-const xmlString = ref<string>('') // BPMN XML
+//注入 流程数据
+const xmlString = inject('processData') as Ref
+
 const modeler = shallowRef() // BPMN Modeler
 const processDesigner = ref()
-const isModelerReady = ref(false)
 const controlForm = ref({
   simulation: true,
   labelEditing: false,
@@ -65,154 +67,27 @@ const controlForm = ref({
 })
 const model = ref<ModelApi.ModelVO>() // 流程模型的信息
 
-// 初始化 bpmnInstances
-const initBpmnInstances = () => {
-  if (!modeler.value) return false
-  try {
-    const instances = {
-      modeler: modeler.value,
-      modeling: modeler.value.get('modeling'),
-      moddle: modeler.value.get('moddle'),
-      eventBus: modeler.value.get('eventBus'),
-      bpmnFactory: modeler.value.get('bpmnFactory'),
-      elementFactory: modeler.value.get('elementFactory'),
-      elementRegistry: modeler.value.get('elementRegistry'),
-      replace: modeler.value.get('replace'),
-      selection: modeler.value.get('selection')
-    }
-
-    // 检查所有实例是否都存在
-    return Object.values(instances).every((instance) => instance)
-  } catch (error) {
-    console.error('初始化 bpmnInstances 失败:', error)
-    return false
-  }
-}
 
 /** 初始化 modeler */
 const initModeler = async (item) => {
-  try {
-    modeler.value = item
-    // 等待 modeler 初始化完成
-    await nextTick()
-
-    // 确保 modeler 的所有实例都已经准备好
-    if (initBpmnInstances()) {
-      isModelerReady.value = true
-      emit('init-finished')
-
-      // 初始化完成后，设置初始值
-      if (props.modelId) {
-        // 编辑模式
-        const data = await ModelApi.getModel(props.modelId)
-        model.value = {
-          ...data,
-          bpmnXml: undefined // 清空 bpmnXml 属性
-        }
-        xmlString.value = data.bpmnXml || getDefaultBpmnXml(data.key, data.name)
-      } else if (props.modelKey && props.modelName) {
-        // 新建模式
-        xmlString.value = props.value || getDefaultBpmnXml(props.modelKey, props.modelName)
-        model.value = {
-          key: props.modelKey,
-          name: props.modelName
-        } as ModelApi.ModelVO
-      }
-
-      // 导入XML并刷新视图
-      await nextTick()
-      try {
-        await modeler.value.importXML(xmlString.value)
-        if (processDesigner.value?.refresh) {
-          processDesigner.value.refresh()
-        }
-      } catch (error) {
-        console.error('导入XML失败:', error)
-      }
-    } else {
-      console.error('modeler 实例未完全初始化')
-    }
-  } catch (error) {
-    console.error('初始化 modeler 失败:', error)
-  }
+  modeler.value = item
 }
 
-/** 获取默认的BPMN XML */
-const getDefaultBpmnXml = (key: string, name: string) => {
-  return `<?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="${key}" name="${name}" isExecutable="true" />
-  <bpmndi:BPMNDiagram id="BPMNDiagram">
-    <bpmndi:BPMNPlane id="${key}_di" bpmnElement="${key}" />
-  </bpmndi:BPMNDiagram>
-</definitions>`
-}
 
 /** 添加/修改模型 */
 const save = async (bpmnXml: string) => {
   try {
     xmlString.value = bpmnXml
-    if (props.modelId) {
-      // 编辑模式
-      const data = {
-        ...model.value,
-        bpmnXml: bpmnXml
-      } as unknown as ModelApi.ModelVO
-      await ModelApi.updateModelBpmn(data)
-      emit('success')
-    } else {
-      // 新建模式，直接返回XML
-      emit('success', bpmnXml)
-    }
+    emit('success', bpmnXml)
   } catch (error) {
     console.error('保存失败:', error)
     message.error('保存失败')
   }
 }
 
-// 监听 key、name 和 value 的变化
-watch(
-  [() => props.modelKey, () => props.modelName, () => props.value],
-  async ([newKey, newName, newValue]) => {
-    if (!props.modelId && isModelerReady.value) {
-      let shouldRefresh = false
-
-      if (newKey && newName) {
-        const newXml = newValue || getDefaultBpmnXml(newKey, newName)
-        if (newXml !== xmlString.value) {
-          xmlString.value = newXml
-          shouldRefresh = true
-        }
-        model.value = {
-          ...model.value,
-          key: newKey,
-          name: newName
-        } as ModelApi.ModelVO
-      } else if (newValue && newValue !== xmlString.value) {
-        xmlString.value = newValue
-        shouldRefresh = true
-      }
-
-      if (shouldRefresh) {
-        // 确保更新后重新渲染
-        await nextTick()
-        if (processDesigner.value?.refresh) {
-          try {
-            await modeler.value?.importXML(xmlString.value)
-            processDesigner.value.refresh()
-          } catch (error) {
-            console.error('导入XML失败:', error)
-          }
-        }
-      }
-    }
-  },
-  { deep: true }
-)
 
 // 在组件卸载时清理
 onBeforeUnmount(() => {
-  isModelerReady.value = false
   modeler.value = null
   // 清理全局实例
   const w = window as any
@@ -221,54 +96,7 @@ onBeforeUnmount(() => {
   }
 })
 
-/** 获取 XML 字符串 */
-const saveXML = async () => {
-  if (!modeler.value) {
-    return { xml: xmlString.value }
-  }
-  try {
-    const result = await modeler.value.saveXML({ format: true })
-    xmlString.value = result.xml
-    return result
-  } catch (error) {
-    console.error('获取XML失败:', error)
-    return { xml: xmlString.value }
-  }
-}
 
-/** 获取SVG字符串 */
-const saveSVG = async () => {
-  if (!modeler.value) {
-    return { svg: undefined }
-  }
-  try {
-    return await modeler.value.saveSVG()
-  } catch (error) {
-    console.error('获取SVG失败:', error)
-    return { svg: undefined }
-  }
-}
-
-/** 刷新视图 */
-const refresh = async () => {
-  if (processDesigner.value?.refresh && modeler.value) {
-    try {
-      await modeler.value.importXML(xmlString.value)
-      processDesigner.value.refresh()
-    } catch (error) {
-      console.error('刷新视图失败:', error)
-    }
-  }
-}
-
-// 暴露必要的属性和方法给父组件
-defineExpose({
-  modeler,
-  isModelerReady,
-  saveXML,
-  saveSVG,
-  refresh
-})
 </script>
 <style lang="scss">
 .process-panel__container {