<template>
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<div class="my-process-designer">
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<div class="my-process-designer__header" style="z-index: 999; display: table-row-group">
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<slot name="control-header"></slot>
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<template v-if="!$slots['control-header']">
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<ElButtonGroup key="file-control">
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<XButton preIcon="ep:folder-opened" title="打开文件" @click="refFile.click()" />
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<el-tooltip effect="light" placement="bottom">
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<template #content>
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<div style="color: #409eff">
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<!-- <el-button link @click="downloadProcessAsXml()">下载为XML文件</el-button> -->
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<XTextButton title="下载为XML文件" @click="downloadProcessAsXml()" />
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<br />
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<!-- <el-button link @click="downloadProcessAsSvg()">下载为SVG文件</el-button> -->
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<XTextButton title="下载为SVG文件" @click="downloadProcessAsSvg()" />
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<br />
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<!-- <el-button link @click="downloadProcessAsBpmn()">下载为BPMN文件</el-button> -->
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<XTextButton title="下载为BPMN文件" @click="downloadProcessAsBpmn()" />
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</div>
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</template>
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<XButton title="下载文件" preIcon="ep:download" />
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</el-tooltip>
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<el-tooltip effect="light">
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<XButton preIcon="ep:view" title="浏览" />
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<template #content>
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<!-- <el-button link @click="previewProcessXML">预览XML</el-button> -->
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<XTextButton title="预览XML" @click="previewProcessXML" />
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<br />
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<!-- <el-button link @click="previewProcessJson">预览JSON</el-button> -->
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<XTextButton title="预览JSON" @click="previewProcessJson" />
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</template>
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</el-tooltip>
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<el-tooltip
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v-if="props.simulation"
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effect="light"
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:content="simulationStatus ? '退出模拟' : '开启模拟'"
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>
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<XButton preIcon="ep:cpu" title="模拟" @click="processSimulation" />
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</el-tooltip>
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</ElButtonGroup>
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<ElButtonGroup key="align-control">
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<el-tooltip effect="light" content="向左对齐">
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<!-- <el-button
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class="align align-left"
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icon="el-icon-s-data"
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@click="elementsAlign('left')"
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/> -->
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<XButton
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preIcon="fa:align-left"
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class="align align-bottom"
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@click="elementsAlign('left')"
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/>
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</el-tooltip>
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<el-tooltip effect="light" content="向右对齐">
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<!-- <el-button
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class="align align-right"
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icon="el-icon-s-data"
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@click="elementsAlign('right')"
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/> -->
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<XButton
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preIcon="fa:align-left"
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class="align align-top"
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@click="elementsAlign('right')"
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/>
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</el-tooltip>
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<el-tooltip effect="light" content="向上对齐">
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<!-- <el-button
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class="align align-top"
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icon="el-icon-s-data"
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@click="elementsAlign('top')"
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/> -->
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<XButton
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preIcon="fa:align-left"
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class="align align-left"
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@click="elementsAlign('top')"
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/>
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</el-tooltip>
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<el-tooltip effect="light" content="向下对齐">
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<!-- <el-button
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class="align align-bottom"
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icon="el-icon-s-data"
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@click="elementsAlign('bottom')"
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/> -->
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<XButton
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preIcon="fa:align-left"
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class="align align-right"
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@click="elementsAlign('bottom')"
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/>
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</el-tooltip>
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<el-tooltip effect="light" content="水平居中">
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<!-- <el-button
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class="align align-center"
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icon="el-icon-s-data"
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@click="elementsAlign('center')"
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/> -->
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<!-- class="align align-center" -->
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<XButton
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preIcon="fa:align-left"
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class="align align-center"
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@click="elementsAlign('center')"
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/>
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</el-tooltip>
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<el-tooltip effect="light" content="垂直居中">
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<!-- <el-button
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class="align align-middle"
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icon="el-icon-s-data"
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@click="elementsAlign('middle')"
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/> -->
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<XButton
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preIcon="fa:align-left"
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class="align align-middle"
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@click="elementsAlign('middle')"
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/>
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</el-tooltip>
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</ElButtonGroup>
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<ElButtonGroup key="scale-control">
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<el-tooltip effect="light" content="缩小视图">
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<!-- <el-button
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:disabled="defaultZoom < 0.2"
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icon="el-icon-zoom-out"
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@click="processZoomOut()"
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/> -->
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<XButton
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preIcon="ep:zoom-out"
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@click="processZoomOut()"
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:disabled="defaultZoom < 0.2"
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/>
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</el-tooltip>
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<el-button>{{ Math.floor(defaultZoom * 10 * 10) + '%' }}</el-button>
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<el-tooltip effect="light" content="放大视图">
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<!-- <el-button
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:disabled="defaultZoom > 4"
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icon="el-icon-zoom-in"
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@click="processZoomIn()"
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/> -->
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<XButton preIcon="ep:zoom-in" @click="processZoomIn()" :disabled="defaultZoom > 4" />
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</el-tooltip>
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<el-tooltip effect="light" content="重置视图并居中">
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<!-- <el-button icon="el-icon-c-scale-to-original" @click="processReZoom()" /> -->
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<XButton preIcon="ep:scale-to-original" @click="processReZoom()" />
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</el-tooltip>
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</ElButtonGroup>
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<ElButtonGroup key="stack-control">
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<el-tooltip effect="light" content="撤销">
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<!-- <el-button :disabled="!revocable" icon="el-icon-refresh-left" @click="processUndo()" /> -->
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<XButton preIcon="ep:refresh-left" @click="processUndo()" :disabled="!revocable" />
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</el-tooltip>
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<el-tooltip effect="light" content="恢复">
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<!-- <el-button
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:disabled="!recoverable"
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icon="el-icon-refresh-right"
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@click="processRedo()"
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/> -->
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<XButton preIcon="ep:refresh-right" @click="processRedo()" :disabled="!recoverable" />
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</el-tooltip>
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<el-tooltip effect="light" content="重新绘制">
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<!-- <el-button icon="el-icon-refresh" @click="processRestart" /> -->
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<XButton preIcon="ep:refresh" @click="processRestart()" />
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</el-tooltip>
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</ElButtonGroup>
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<XButton
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preIcon="ep:plus"
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title="保存模型"
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@click="processSave"
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:type="props.headerButtonType"
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:disabled="simulationStatus"
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/>
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</template>
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<!-- 用于打开本地文件-->
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<input
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type="file"
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id="files"
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ref="refFile"
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style="display: none"
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accept=".xml, .bpmn"
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@change="importLocalFile"
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/>
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</div>
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<div class="my-process-designer__container">
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<div
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class="my-process-designer__canvas"
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ref="bpmnCanvas"
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id="bpmnCanvas"
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style="width: 1680px; height: 800px"
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></div>
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<!-- <div id="js-properties-panel" class="panel"></div> -->
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<!-- <div class="my-process-designer__canvas" ref="bpmn-canvas"></div> -->
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</div>
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<Dialog
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title="预览"
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v-model="previewModelVisible"
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width="80%"
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:scroll="true"
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max-height="600px"
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>
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<!-- append-to-body -->
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<div v-highlight>
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<code class="hljs">
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<!-- 高亮代码块 -->
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{{ previewResult }}
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</code>
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</div>
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</Dialog>
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</div>
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</template>
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<script lang="ts" setup>
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// import 'bpmn-js/dist/assets/diagram-js.css' // 左边工具栏以及编辑节点的样式
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// import 'bpmn-js/dist/assets/bpmn-font/css/bpmn.css'
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// import 'bpmn-js/dist/assets/bpmn-font/css/bpmn-codes.css'
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// import 'bpmn-js/dist/assets/bpmn-font/css/bpmn-embedded.css'
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// import 'bpmn-js-properties-panel/dist/assets/bpmn-js-properties-panel.css' // 右侧框样式
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import { ElMessage, ElMessageBox } from 'element-plus'
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import BpmnModeler from 'bpmn-js/lib/Modeler'
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import DefaultEmptyXML from './plugins/defaultEmpty'
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// 翻译方法
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import customTranslate from './plugins/translate/customTranslate'
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import translationsCN from './plugins/translate/zh'
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// 模拟流转流程
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import tokenSimulation from 'bpmn-js-token-simulation'
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// 标签解析构建器
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// import bpmnPropertiesProvider from "bpmn-js-properties-panel/lib/provider/bpmn";
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// import propertiesPanelModule from 'bpmn-js-properties-panel'
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// import propertiesProviderModule from 'bpmn-js-properties-panel/lib/provider/camunda'
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// 标签解析 Moddle
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import camundaModdleDescriptor from './plugins/descriptor/camundaDescriptor.json'
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import activitiModdleDescriptor from './plugins/descriptor/activitiDescriptor.json'
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import flowableModdleDescriptor from './plugins/descriptor/flowableDescriptor.json'
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// 标签解析 Extension
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import camundaModdleExtension from './plugins/extension-moddle/camunda'
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import activitiModdleExtension from './plugins/extension-moddle/activiti'
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import flowableModdleExtension from './plugins/extension-moddle/flowable'
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// 引入json转换与高亮
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// import xml2js from 'xml-js'
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// import xml2js from 'fast-xml-parser'
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import { XmlNode, XmlNodeType, parseXmlString } from 'steady-xml'
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// 代码高亮插件
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// import hljs from 'highlight.js/lib/highlight'
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// import 'highlight.js/styles/github-gist.css'
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// hljs.registerLanguage('xml', 'highlight.js/lib/languages/xml')
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// hljs.registerLanguage('json', 'highlight.js/lib/languages/json')
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// const eventName = reactive({
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// name: ''
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// })
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defineOptions({ name: 'MyProcessDesigner' })
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const bpmnCanvas = ref()
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const refFile = ref()
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const emit = defineEmits([
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'destroy',
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'init-finished',
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'save',
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'commandStack-changed',
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'input',
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'change',
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'canvas-viewbox-changed',
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// eventName.name
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'element-click'
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])
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const props = defineProps({
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value: String, // xml 字符串
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// valueWatch: true, // xml 字符串的 watch 状态
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processId: String, // 流程 key 标识
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processName: String, // 流程 name 名字
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formId: Number, // 流程 form 表单编号
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translations: {
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// 自定义的翻译文件
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type: Object,
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default: () => {}
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},
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additionalModel: [Object, Array], // 自定义model
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moddleExtension: {
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// 自定义moddle
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type: Object,
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default: () => {}
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},
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onlyCustomizeAddi: {
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type: Boolean,
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default: false
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},
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onlyCustomizeModdle: {
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type: Boolean,
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default: false
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},
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simulation: {
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type: Boolean,
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default: true
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},
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keyboard: {
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type: Boolean,
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default: true
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},
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prefix: {
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type: String,
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default: 'camunda'
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},
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events: {
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type: Array,
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default: () => ['element.click']
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},
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headerButtonSize: {
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type: String,
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default: 'small',
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validator: (value: string) => ['default', 'medium', 'small', 'mini'].indexOf(value) !== -1
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},
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headerButtonType: {
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type: String,
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default: 'primary',
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validator: (value: string) =>
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['default', 'primary', 'success', 'warning', 'danger', 'info'].indexOf(value) !== -1
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}
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})
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provide('configGlobal', props)
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let bpmnModeler: any = null
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const defaultZoom = ref(1)
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const previewModelVisible = ref(false)
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const simulationStatus = ref(false)
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const previewResult = ref('')
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const previewType = ref('xml')
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const recoverable = ref(false)
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const revocable = ref(false)
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const additionalModules = computed(() => {
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console.log(props.additionalModel, 'additionalModel')
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const Modules: any[] = []
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// 仅保留用户自定义扩展模块
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if (props.onlyCustomizeAddi) {
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if (Object.prototype.toString.call(props.additionalModel) == '[object Array]') {
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return props.additionalModel || []
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}
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return [props.additionalModel]
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}
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// 插入用户自定义扩展模块
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if (Object.prototype.toString.call(props.additionalModel) == '[object Array]') {
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Modules.push(...(props.additionalModel as any[]))
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} else {
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props.additionalModel && Modules.push(props.additionalModel)
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}
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// 翻译模块
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const TranslateModule = {
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translate: ['value', customTranslate(props.translations || translationsCN)]
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}
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Modules.push(TranslateModule)
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// 模拟流转模块
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if (props.simulation) {
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Modules.push(tokenSimulation)
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}
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// 根据需要的流程类型设置扩展元素构建模块
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// if (this.prefix === "bpmn") {
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// Modules.push(bpmnModdleExtension);
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// }
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console.log(props.prefix, 'props.prefix ')
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if (props.prefix === 'camunda') {
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Modules.push(camundaModdleExtension)
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}
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if (props.prefix === 'flowable') {
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Modules.push(flowableModdleExtension)
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}
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if (props.prefix === 'activiti') {
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Modules.push(activitiModdleExtension)
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}
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return Modules
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})
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const moddleExtensions = computed(() => {
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console.log(props.onlyCustomizeModdle, 'props.onlyCustomizeModdle')
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console.log(props.moddleExtension, 'props.moddleExtension')
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console.log(props.prefix, 'props.prefix')
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const Extensions: any = {}
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// 仅使用用户自定义模块
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if (props.onlyCustomizeModdle) {
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return props.moddleExtension || null
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}
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// 插入用户自定义模块
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if (props.moddleExtension) {
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for (let key in props.moddleExtension) {
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Extensions[key] = props.moddleExtension[key]
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}
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}
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// 根据需要的 "流程类型" 设置 对应的解析文件
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if (props.prefix === 'activiti') {
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Extensions.activiti = activitiModdleDescriptor
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}
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if (props.prefix === 'flowable') {
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Extensions.flowable = flowableModdleDescriptor
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}
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if (props.prefix === 'camunda') {
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Extensions.camunda = camundaModdleDescriptor
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}
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return Extensions
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})
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console.log(additionalModules, 'additionalModules()')
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console.log(moddleExtensions, 'moddleExtensions()')
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const initBpmnModeler = () => {
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if (bpmnModeler) return
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let data = document.getElementById('bpmnCanvas')
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console.log(data, 'data')
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console.log(props.keyboard, 'props.keyboard')
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console.log(additionalModules, 'additionalModules()')
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console.log(moddleExtensions, 'moddleExtensions()')
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bpmnModeler = new BpmnModeler({
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// container: this.$refs['bpmn-canvas'],
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// container: getCurrentInstance(),
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// container: needClass,
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// container: bpmnCanvas.value,
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container: data,
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// width: '100%',
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// 添加控制板
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// propertiesPanel: {
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// parent: '#js-properties-panel'
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// },
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keyboard: props.keyboard ? { bindTo: document } : null,
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// additionalModules: additionalModules.value,
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additionalModules: additionalModules.value,
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moddleExtensions: moddleExtensions.value
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// additionalModules: [
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// additionalModules.value
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// propertiesPanelModule,
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// propertiesProviderModule
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// propertiesProviderModule
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// ],
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// moddleExtensions: { camunda: moddleExtensions.value }
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})
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// bpmnModeler.createDiagram()
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// console.log(bpmnModeler, 'bpmnModeler111111')
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emit('init-finished', bpmnModeler)
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initModelListeners()
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}
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const initModelListeners = () => {
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const EventBus = bpmnModeler.get('eventBus')
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console.log(EventBus, 'EventBus')
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// 注册需要的监听事件, 将. 替换为 - , 避免解析异常
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props.events.forEach((event: any) => {
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EventBus.on(event, function (eventObj) {
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let eventName = event.replace(/\./g, '-')
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// eventName.name = eventName
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let element = eventObj ? eventObj.element : null
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console.log(eventName, 'eventName')
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console.log(element, 'element')
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emit('element-click', element, eventObj)
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// emit(eventName, element, eventObj)
|
})
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})
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// 监听图形改变返回xml
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EventBus.on('commandStack.changed', async (event) => {
|
try {
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recoverable.value = bpmnModeler.get('commandStack').canRedo()
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revocable.value = bpmnModeler.get('commandStack').canUndo()
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let { xml } = await bpmnModeler.saveXML({ format: true })
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emit('commandStack-changed', event)
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emit('input', xml)
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emit('change', xml)
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} catch (e: any) {
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console.error(`[Process Designer Warn]: ${e.message || e}`)
|
}
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})
|
// 监听视图缩放变化
|
bpmnModeler.on('canvas.viewbox.changed', ({ viewbox }) => {
|
emit('canvas-viewbox-changed', { viewbox })
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const { scale } = viewbox
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defaultZoom.value = Math.floor(scale * 100) / 100
|
})
|
}
|
/* 创建新的流程图 */
|
const createNewDiagram = async (xml) => {
|
console.log(xml, 'xml')
|
// 将字符串转换成图显示出来
|
let newId = props.processId || `Process_${new Date().getTime()}`
|
let newName = props.processName || `业务流程_${new Date().getTime()}`
|
let xmlString = xml || DefaultEmptyXML(newId, newName, props.prefix)
|
try {
|
// console.log(xmlString, 'xmlString')
|
// console.log(this.bpmnModeler.importXML);
|
let { warnings } = await bpmnModeler.importXML(xmlString)
|
console.log(warnings, 'warnings')
|
if (warnings && warnings.length) {
|
warnings.forEach((warn) => console.warn(warn))
|
}
|
} catch (e: any) {
|
console.error(`[Process Designer Warn]: ${e.message || e}`)
|
}
|
}
|
|
// 下载流程图到本地
|
const downloadProcess = async (type) => {
|
try {
|
// 按需要类型创建文件并下载
|
if (type === 'xml' || type === 'bpmn') {
|
const { err, xml } = await bpmnModeler.saveXML()
|
// 读取异常时抛出异常
|
if (err) {
|
console.error(`[Process Designer Warn ]: ${err.message || err}`)
|
}
|
let { href, filename } = setEncoded(type.toUpperCase(), xml)
|
downloadFunc(href, filename)
|
} else {
|
const { err, svg } = await bpmnModeler.saveSVG()
|
// 读取异常时抛出异常
|
if (err) {
|
return console.error(err)
|
}
|
let { href, filename } = setEncoded('SVG', svg)
|
downloadFunc(href, filename)
|
}
|
} catch (e: any) {
|
console.error(`[Process Designer Warn ]: ${e.message || e}`)
|
}
|
// 文件下载方法
|
function downloadFunc(href, filename) {
|
if (href && filename) {
|
let a = document.createElement('a')
|
a.download = filename //指定下载的文件名
|
a.href = href // URL对象
|
a.click() // 模拟点击
|
URL.revokeObjectURL(a.href) // 释放URL 对象
|
}
|
}
|
}
|
|
// 根据所需类型进行转码并返回下载地址
|
const setEncoded = (type, data) => {
|
const filename = 'diagram'
|
const encodedData = encodeURIComponent(data)
|
return {
|
filename: `${filename}.${type}`,
|
href: `data:application/${
|
type === 'svg' ? 'text/xml' : 'bpmn20-xml'
|
};charset=UTF-8,${encodedData}`,
|
data: data
|
}
|
}
|
|
// 加载本地文件
|
const importLocalFile = () => {
|
const file = refFile.value.files[0]
|
const reader = new FileReader()
|
reader.readAsText(file)
|
reader.onload = function () {
|
let xmlStr = this.result
|
createNewDiagram(xmlStr)
|
}
|
}
|
/* ------------------------------------------------ refs methods ------------------------------------------------------ */
|
const downloadProcessAsXml = () => {
|
downloadProcess('xml')
|
}
|
const downloadProcessAsBpmn = () => {
|
downloadProcess('bpmn')
|
}
|
const downloadProcessAsSvg = () => {
|
downloadProcess('svg')
|
}
|
const processSimulation = () => {
|
simulationStatus.value = !simulationStatus.value
|
console.log(bpmnModeler.get('toggleMode', 'strict'), "bpmnModeler.get('toggleMode')")
|
props.simulation && bpmnModeler.get('toggleMode', 'strict').toggleMode()
|
}
|
const processRedo = () => {
|
bpmnModeler.get('commandStack').redo()
|
}
|
const processUndo = () => {
|
bpmnModeler.get('commandStack').undo()
|
}
|
const processZoomIn = (zoomStep = 0.1) => {
|
let newZoom = Math.floor(defaultZoom.value * 100 + zoomStep * 100) / 100
|
if (newZoom > 4) {
|
throw new Error('[Process Designer Warn ]: The zoom ratio cannot be greater than 4')
|
}
|
defaultZoom.value = newZoom
|
bpmnModeler.get('canvas').zoom(defaultZoom.value)
|
}
|
const processZoomOut = (zoomStep = 0.1) => {
|
let newZoom = Math.floor(defaultZoom.value * 100 - zoomStep * 100) / 100
|
if (newZoom < 0.2) {
|
throw new Error('[Process Designer Warn ]: The zoom ratio cannot be less than 0.2')
|
}
|
defaultZoom.value = newZoom
|
bpmnModeler.get('canvas').zoom(defaultZoom.value)
|
}
|
// const processZoomTo = (newZoom = 1) => {
|
// if (newZoom < 0.2) {
|
// throw new Error('[Process Designer Warn ]: The zoom ratio cannot be less than 0.2')
|
// }
|
// if (newZoom > 4) {
|
// throw new Error('[Process Designer Warn ]: The zoom ratio cannot be greater than 4')
|
// }
|
// defaultZoom = newZoom
|
// bpmnModeler.get('canvas').zoom(newZoom)
|
// }
|
const processReZoom = () => {
|
defaultZoom.value = 1
|
bpmnModeler.get('canvas').zoom('fit-viewport', 'auto')
|
}
|
const processRestart = () => {
|
recoverable.value = false
|
revocable.value = false
|
createNewDiagram(null)
|
}
|
const elementsAlign = (align) => {
|
const Align = bpmnModeler.get('alignElements')
|
const Selection = bpmnModeler.get('selection')
|
const SelectedElements = Selection.get()
|
if (!SelectedElements || SelectedElements.length <= 1) {
|
ElMessage.warning('请按住 Shift 键选择多个元素对齐')
|
// alert('请按住 Ctrl 键选择多个元素对齐
|
return
|
}
|
ElMessageBox.confirm('自动对齐可能造成图形变形，是否继续？', '警告', {
|
confirmButtonText: '确定',
|
cancelButtonText: '取消',
|
type: 'warning'
|
}).then(() => {
|
Align.trigger(SelectedElements, align)
|
})
|
}
|
/*----------------------------- 方法结束 ---------------------------------*/
|
const previewProcessXML = () => {
|
console.log(bpmnModeler.saveXML, 'bpmnModeler')
|
bpmnModeler.saveXML({ format: true }).then(({ xml }) => {
|
// console.log(xml, 'xml111111')
|
previewResult.value = xml
|
previewType.value = 'xml'
|
previewModelVisible.value = true
|
})
|
}
|
const previewProcessJson = () => {
|
bpmnModeler.saveXML({ format: true }).then(({ xml }) => {
|
// console.log(xml, 'xml')
|
|
// const rootNode = parseXmlString(xml)
|
// console.log(rootNode, 'rootNoderootNode')
|
const rootNodes = new XmlNode(XmlNodeType.Root, parseXmlString(xml))
|
// console.log(rootNodes, 'rootNodesrootNodesrootNodes')
|
// console.log(rootNodes.parent.toJsObject(), 'rootNodes.toJSON()')
|
// console.log(JSON.stringify(rootNodes.parent.toJsObject()), 'rootNodes.toJSON()')
|
// console.log(JSON.stringify(rootNodes.parent.toJSON()), 'rootNodes.toJSON()')
|
|
// const parser = new xml2js.XMLParser()
|
// let jObj = parser.parse(xml)
|
// console.log(jObj, 'jObjjObjjObjjObjjObj')
|
// const builder = new xml2js.XMLBuilder(xml)
|
// const xmlContent = builder
|
// console.log(xmlContent, 'xmlContent')
|
// console.log(xml2js, 'convertconvertconvert')
|
previewResult.value = rootNodes.parent?.toJSON() as unknown as string
|
// previewResult.value = jObj
|
// previewResult.value = convert.xml2json(xml, {explicitArray : false},{ spaces: 2 })
|
previewType.value = 'json'
|
previewModelVisible.value = true
|
})
|
}
|
/* ------------------------------------------------ 芋道源码 methods ------------------------------------------------------ */
|
const processSave = async () => {
|
// console.log(bpmnModeler, 'bpmnModelerbpmnModelerbpmnModelerbpmnModeler')
|
const { err, xml } = await bpmnModeler.saveXML()
|
// console.log(err, 'errerrerrerrerr')
|
// console.log(xml, 'xmlxmlxmlxmlxml')
|
// 读取异常时抛出异常
|
if (err) {
|
// this.$modal.msgError('保存模型失败，请重试！')
|
alert('保存模型失败，请重试！')
|
return
|
}
|
// 触发 save 事件
|
emit('save', xml)
|
}
|
/** 高亮显示 */
|
// const highlightedCode = (previewType, previewResult) => {
|
// console.log(previewType, 'previewType, previewResult')
|
// console.log(previewResult, 'previewType, previewResult')
|
// console.log(hljs.highlight, 'hljs.highlight')
|
// const result = hljs.highlight(previewType, previewResult.value || '', true)
|
// return result.value || ' '
|
// }
|
onBeforeMount(() => {
|
console.log(props, 'propspropspropsprops')
|
})
|
onMounted(() => {
|
initBpmnModeler()
|
createNewDiagram(props.value)
|
})
|
onBeforeUnmount(() => {
|
// this.$once('hook:beforeDestroy', () => {
|
// })
|
if (bpmnModeler) bpmnModeler.destroy()
|
emit('destroy', bpmnModeler)
|
bpmnModeler = null
|
})
|
</script>
|
