antV G6流程图在Vue中的使用

原文首发于个人博客,欢迎点击查看得到更好的阅读体验~css

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最近我司项目中须要加入流程图制做功能,因而乎百度各类找可视化绘制拓扑图的轮子,大部分都是国外的,看文档太吃力,不过好在最终让我发现了AntV G6流程图图表库,最新版为2.0,不过编辑器在2.0版本尚未进行开源,因此只能退而求其次,使用了1.2.8版本。但愿2.0版本的编辑器尽早开源,在交互方面1.2.8版本仍是差了一些。github

该组件并**非开箱即食**,须要根据本身的业务进行修改,右侧属性表单部分若是有时间考虑改成插槽形式,方便之后复用~npm

技术栈

效果图

工做流图.gif

引入

index.html中进行了全局引用json

<script src="./static/plugin/g6.min.js"></script>

复制代码

实例代码

仿照2.0版本的编辑器将G6做为了一个组件使用,代码:api

<template>
  <div id="flowChart">
    <div class="operating">
      <div class="btn-group">
        <div class="btn" @click="addCircle" title="起始节点">
          <i class="iconfont icon-circle-oeps"></i>
        </div>
        <div class="btn" @click="addRect" title="常规节点">
          <i class="iconfont icon-square-oeps"></i>
        </div>
        <div class="btn" @click="addRhombus" title="条件节点">
          <i class="iconfont icon-square-ling"></i>
        </div>
      </div>
      <div class="btn-group">
        <div class="btn" @click="addLine" title="直线">
          <i class="iconfont icon-zhixian"></i>
        </div>
        <div class="btn" @click="addSmooth" title="曲线">
          <i class="iconfont icon-quxian"></i>
        </div>
        <div class="btn" @click="addArrowLine" title="箭头直线">
          <i class="iconfont icon-jiantouzhixian"></i>
        </div>
        <div class="btn" @click="addArrowSmooth" title="箭头曲线">
          <i class="iconfont icon-jiantouquxian"></i>
        </div>
      </div>
      <div class="btn-group">
        <div class="btn" @click="changeMode('edit')" title="选择模式">
          <i class="iconfont icon-chose"></i>
        </div>
        <div class="btn" @click="changeMode('drag')" title="拖拽模式">
          <i class="iconfont icon-move"></i>
        </div>
      </div>
      <div class="btn-group">
        <div class="btn" @click="del" style="margin-top: 5px;" title="删除">
          <i class="el-icon-delete"></i>
        </div>
        <div class="btn" @click="save" title="保存">
          <i class="iconfont icon-baocun"></i>
        </div>
      </div>
      <div class="btn-group">
        <el-input size="mini" v-model="workflowName" placeholder="请输入流图名称..."></el-input>
      </div>
    </div>
    <div class="info">
      <div class="title">
        <span>{{infoTitle}}属性</span>
      </div>
      <div class="content">
        <el-checkbox v-if="isBlank === true" v-model="checked">网格对齐</el-checkbox>
        <el-form v-else label-position="left" label-width="60px">
          <el-form-item v-if="isNode !== true" label="动做">
            <el-select v-model="action" size="mini" filterable placeholder="绑定动做" value="">
              <el-option
                v-for="item in actionList"
                :key="item.id"
                :label="item.label"
                :value="item.id">
              </el-option>
            </el-select>
          </el-form-item>   <!-- 线-->
          <el-form-item v-if="isNode === true" label="名称">
            <el-input size="mini" v-model="name"></el-input>
          </el-form-item>
          <el-form-item v-if="isNode === true" label="功能">
            <el-select v-model="func" size="mini" filterable placeholder="绑定功能" value="">
              <el-option
                v-for="item in funcList"
                :key="item.id"
                :label="item.label"
                :value="item.id">
              </el-option>
            </el-select>
          </el-form-item>
          <el-form-item v-if="isNode === true" label="帐号">
            <el-select v-model="account" size="mini" filterable multiple
                       collapse-tags placeholder="绑定帐号" value="">
              <el-option
                v-for="item in accountList"
                :key="item.id"
                :label="item.label"
                :value="item.id">
              </el-option>
            </el-select>
          </el-form-item>
          <el-form-item v-if="isNode === true" label="流图">
            <el-select v-model="workflow" size="mini" filterable clearable placeholder="绑定流图" value="">
              <el-option
                v-for="item in workflowList"
                :key="item.id"
                :label="item.label"
                :value="item.id">
              </el-option>
            </el-select>
          </el-form-item>
          <el-form-item v-if="isNode === true" label="类型">
            <el-select v-model="nodeType" size="mini" filterable placeholder="请选择类型" value="">
              <el-option
                v-for="item in nodeTypeList"
                :key="item.id"
                :label="item.label"
                :value="item.id">
              </el-option>
            </el-select>
          </el-form-item>
          <el-form-item label="颜色">
            <el-color-picker v-model="color"></el-color-picker>
          </el-form-item>
        </el-form>
      </div>
    </div>
  </div>
</template>

<script>

  export default {
    name: "index",
    components: {},
    mounted() {
      this.initG6();
    },
    props: {
      actionList: {
        type: Array, default: []
      },
      funcList: {
        type: Array, default: []
      },
      accountList: {
        type: Array, default: []
      },
      workflowList: {
        type: Array, default: []
      },
      nodeTypeList: {
        type: Array, default: () => {
          return [
            {id: 0, label: '普通节点'},
            {id: 1, label: '入口节点'},
            {id: 2, label: '出口节点'}
          ]
        }
      }
    },
    data() {
      return {
        action: '',
        name: '',
        func: '',
        account: '',
        workflow: '',
        nodeType: 0,
        color: '',

        net: '',
        Util: '',
        workflowName: '',
        activation: '', //当前激活的节点
        isNode: false, //当前是节点
        isBlank: true,   //当前是空白区
        checked: true,  //网格对齐
        infoTitle: '画布',//属性标题
        oldColor: '',    //获取节点自己颜色
        type: '',        //有值为编辑状态
      }
    },
    methods: {
      initG6() {
        let self = this;
        self.Util = G6.Util;
        let grid;
        if (self.checked) {
          grid = {
            forceAlign: true, // 是否支持网格对齐
            cell: 25,         // 网格大小
          };
        } else {
          grid = null;
        }
        self.net = new G6.Net({
          id: 'flowChart',      // 容器ID
          mode: 'edit',
          grid: grid,
          /*width: 500,    // 画布宽*/
          height: 800    // 画布高
        });
        /*self.net.tooltip({
          title: '信息', // @type {String} 标题
          split: ':',  // @type {String} 分割符号
          dx: 0,       // @type {Number} 水平偏移
          dy: 0        // @type {Number} 竖直偏移
        });*/

        /**
         *点击空白处
         */
        self.net.on('click', (ev) => {
          if (!self.Util.isNull(ev.item)) {
            self.isBlank = false
          } else {
            self.isBlank = true;
            self.infoTitle = '画布'
          }
        });
        /**
         *点击节点
         */
        self.net.on('itemclick', function (ev) {
          self.isNode = self.Util.isNode(ev.item);   //是否为Node
          self.activation = ev.item;
          if (self.isNode) {
            /* 激活节点后节点名称input聚焦*/
            self.$nextTick(()=>{
              self.$refs.inputFocus.$el.querySelector('input').focus();
            });
            self.infoTitle = '节点';
            self.name = ev.item.get('model').label;
            self.func = ev.item.get('model').func;
            self.account = ev.item.get('model').account || [];
            self.workflow = ev.item.get('model').workflow;
            self.nodeType = ev.item.get('model').nodeType;
          } else {
            self.infoTitle = '边';
            self.action = ev.item.get('model').action;
          }
          self.color = self.oldColor;
        });
        /**
         * 鼠标移入移出事件改变颜色
         */
        self.net.on('itemmouseenter', ev => {
          const item = ev.item;
          self.oldColor = item.get('model').color;     //获取节点颜色
          self.net.update(item, {
            color: '#108EE9',
          });
          self.net.refresh();
        });
        self.net.on('itemmouseleave', ev => {
          const item = ev.item;
          self.net.update(item, {
            color: self.oldColor
          });
          self.net.refresh();
        });
        /**
         * 提示信息
         */
       /* self.net.node().tooltip(['label', 'func', 'role', 'color']);
        self.net.edge().tooltip(['label', 'color']);*/
        /**
         * 渲染
         */
        /*self.net.source(self.nodes, self.edges);*/  //加载资源数据
        self.net.render();
      },
      addCircle() {
        this.net.beginAdd('node', {
          shape: 'circle',
          nodeType: 0
        })
      },//添加起始节点
      addRect() {
        this.net.beginAdd('node', {
          shape: 'rect',
          nodeType: 0
        })
      },//添加常规节点
      addRhombus() {
        this.net.beginAdd('node', {
          shape: 'rhombus',
          nodeType: 0
        })
      }, //添加条件节点
      addLine() {
        this.net.beginAdd('edge', {
          shape: 'line'
        });
      }, //添加直线
      addSmooth() {
        this.net.beginAdd('edge', {
          shape: 'smooth'
        })
      },  //添加曲线
      addArrowSmooth() {
        this.net.beginAdd('edge', {
          shape: 'smoothArrow'
        })
      }, //添加箭头曲线
      addArrowLine() {
        this.net.beginAdd('edge', {
          shape: 'arrow'
        });
      }, //添加箭头直线
      addPolyLine() {
        this.net.beginAdd('edge', {
          shape: 'polyLineFlow'
        });
      }, //添加折线
      changeMode(mode) {
        this.net.changeMode(mode)
      }, //拖拽与编辑模式的切换
      del() {
        this.net.del()
      },//删除
      save() {
        /* 验证流图名称*/
        if (this.workflowName !== '') {
          let data = this.net.save();
          if (data.source.nodes.length === 0) {
            this.$message({type: 'error', message: '流图内容不能为空'});
            return false
          }
          /* 验证节点名称*/
          for (let item of data.source.nodes) {
            if (item.label === '' || item.label === null || item.label === undefined) {
              this.$message({type: 'error', message: '节点名称不能为空'});
              return false
            }
          }
          data.source['name'] = this.workflowName;
          /*let json = JSON.stringify(data, null, 2);*/
          this.$emit('saveData', data.source, this.type);
        } else {
          this.$message({type: 'error', message: '流图名称不能为空'})
        }
        /*console.log(saveData, json);*/
      },//保存
      update() {
        if (this.activation.get('type') === 'node') {
          this.net.update(this.activation, {
            label: this.name,
            func: this.func,
            account: this.account,
            workflow: this.workflow,
            nodeType: this.nodeType,
            color: this.color
          });
        } else {
          /* 根据ID取出label*/
          let label = this.actionList.map(item => {
            if (item.id === this.action) {
              return item.label
            }
          }).join('');
          this.net.update(this.activation, {
            label: label,
            color: this.color,
            action: this.action
          });
        }
      },  //更新节点
      clearView() {
        this.type = '';
        this.workflowName = '';
        this.net.changeData()
      },   //清空视图
      source(nodes, edges, name, type) {
        this.type = type;
        this.workflowName = name;
        this.net.changeData(nodes, edges)
      },  //更新数据
    },
    watch: {
      /**
       * 监听输入框
       */
      action: function () {
        this.update()
      },
      name: function () {
        this.update()
      },
      func: function () {
        this.update()
      },
      account: function () {
        this.update()
      },
      workflow: function () {
        this.update()
      },
      nodeType: function () {
        this.update()
      },
      color: function () {
        this.update()
      },
      /**
       * 网格切换
       */
      checked: function () {
        let _saveData = this.net.save();
        this.net.destroy();  //销毁画布
        this.initG6();
        this.net.read(_saveData);
        this.net.render()
      }
    }
  }
</script>

<style rel="stylesheet/scss" lang="scss" scoped>
  #flowChart {
    border: 1px solid #ebeef5;
    position: relative;
    overflow: hidden;
  }

  .operating {
    position: absolute;
    z-index: 99;
    background-color: #ffffff;
    padding: 20px 10px;
    box-shadow: 1px 1px 4px 0 #0a0a0a2e;
  }

  .info {
    position: absolute;
    right: 0;
    z-index: 99;
    box-shadow: 1px 1px 4px 0 #0a0a0a2e;
    .title {
      height: 40px;
      padding-left: 10px;
      border-top: 1px solid #DCE3E8;
      border-bottom: 1px solid #DCE3E8;
      border-left: 1px solid #DCE3E8;
      background: rgb(235, 238, 242);
      line-height: 40px;
      span {
        font-size: 14px;
      }
    }
    .content {
      background: rgba(247, 249, 251, 0.45);
      width: 200px;
      height: 800px;
      border-left: 1px solid #E6E9ED;
      padding: 10px;
    }
  }

  .btn-group {
    border-right: 1px solid #efefef;
    display: inline-block;
    padding-left: 10px;
    padding-right: 14px;
    &:last-of-type {
      border-right: 0;
    }
    .btn {
      display: inline-block;
      margin: 2px;
      width: 30px;
      height: 30px;
      line-height: 30px;
      text-align: center;
      cursor: pointer;
      border: 1px solid rgba(233, 233, 233, 0);
      i {
        font-size: 20px;
      }
      &:hover {
        border: 1px solid #E9E9E9;
        color: #767A85;
        border-radius: 2px;
        background: #FAFAFE;
      }
    }
    .el-form-item {
      margin-bottom: 0 !important;
    }
  }
</style>
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流图属性

参数 说明 类型 可选值 默认值
actionList 动做数据 Array —— []
funcList 功能数据 Array —— []
accountList 帐号数据 Array —— []
workflowList 流图数据 Array —— []
nodeTypeList 节点类型数据 Array —— [{id: 0, label: '普通节点'},{id: 1, label: '入口节点'},{id: 2, label: '出口节点'}]

全部属性接收的数据格式须要与nodeTypeList的默认值相同bash

流图事件

事件名 说明 参数
saveData 当用户手动点击保存触发事件 source,type

参数type可为空,在此项目中主要用来区分新建编辑

流图方法

方法名 说明 参数
clearView 清空当前视图 ——
source 渲染数据 nodes, edges, name, type

参数type与事件中相同,参数name的做用是用来取流图名

参考文档

使用 G6关系图类库 开发流程图工具

旧版本G6 1.x API 文档

新版本G6 2.x API 文档

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