perf[Tree-Table]: refactor tree-table

src/components/TreeTable/eval.js

@@ -1,29 +1,48 @@
-/**
-* @Author: jianglei
-* @Date:   2017-10-12 12:06:49
-*/
-'use strict'
 import Vue from 'vue'
-export default function treeToArray(data, expandAll, parent = null, level = null) {
+
+// Flattened array
+export default function treeToArray(data, children = 'children') {
   let tmp = []
-  Array.from(data).forEach(function(record) {
+  data.forEach((item, index) => {
-    if (record._expanded === undefined) {
+    Vue.set(item, '_index', index)
-      Vue.set(record, '_expanded', expandAll)
+    tmp.push(item)
-    }
+    if (item[children] && item[children].length > 0) {
-    let _level = 1
+      const res = treeToArray(item[children], children)
-    if (level !== undefined && level !== null) {
+      tmp = tmp.concat(res)
-      _level = level + 1
-    }
-    Vue.set(record, '_level', _level)
-    // 如果有父元素
-    if (parent) {
-      Vue.set(record, 'parent', parent)
-    }
-    tmp.push(record)
-    if (record.children && record.children.length > 0) {
-      const children = treeToArray(record.children, expandAll, record, _level)
-      tmp = tmp.concat(children)
     }
   })
   return tmp
 }
+
+export function addAttrs(data, { parent = null, preIndex = false, level = 0, expand = false, children = 'children', show = true, select = false } = {}) {
+  data.forEach((item, index) => {
+    const _id = (preIndex ? `${preIndex}-${index}` : index) + ''
+    Vue.set(item, '_id', _id)
+    Vue.set(item, '_level', level)
+    Vue.set(item, '_expand', expand)
+    Vue.set(item, '_parent', parent)
+    Vue.set(item, '_show', show)
+    Vue.set(item, '_select', select)
+    if (item[children] && item[children].length > 0) {
+      addAttrs(item[children], {
+        parent: item,
+        level: level + 1,
+        expand,
+        preIndex: _id,
+        children,
+        status,
+        select
+      })
+    }
+  })
+}
+
+export function cleanParentAttr(data, children = 'children') {
+  data.forEach(item => {
+    item._parent = null
+    if (item[children] && item[children].length > 0) {
+      addAttrs(item[children], children)
+    }
+  })
+  return data
+}

src/components/TreeTable/index.vue

@@ -1,127 +1,183 @@
 <template>
-  <el-table :data="formatData" :row-style="showRow" v-bind="$attrs">
+  <el-table :data="tableData" :row-style="showRow" v-bind="$attrs" v-on="$listeners" >
-    <el-table-column v-if="columns.length===0" width="150">
+    <slot name="selection" />
+    <slot name="pre-column" />
+    <el-table-column
+      v-for="item in columns"
+      :label="item.label"
+      :key="item.key"
+      :width="item.width"
+      :align="item.align||'center'"
+      :header-align="item.headerAlign">
       <template slot-scope="scope">
-        <span v-for="space in scope.row._level" :key="space" class="ms-tree-space"/>
+        <slot :scope="scope" :name="item.key">
-        <span v-if="iconShow(0,scope.row)" class="tree-ctrl" @click="toggleExpanded(scope.$index)">
+          <template v-if="item.expand">
-          <i v-if="!scope.row._expanded" class="el-icon-plus"/>
+            <span :style="{'padding-left':+scope.row._level*indent + 'px'} "/>
+            <span v-show="showSperadIcon(scope.row)" class="tree-ctrl" @click="toggleExpanded(scope.$index)">
+              <i v-if="!scope.row._expand" class="el-icon-plus" />
               <i v-else class="el-icon-minus" />
             </span>
-        {{ scope.$index }}
+          </template>
+          <template v-if="item.checkbox">
+            <el-checkbox
+              v-if="scope.row[defaultChildren]&&scope.row[defaultChildren].length>0"
+              :style="{'padding-left':+scope.row._level*indent + 'px'} "
+              :indeterminate="scope.row._select"
+              v-model="scope.row._select"
+              @change="handleCheckAllChange(scope.row)" />
+            <el-checkbox
+              v-else
+              :style="{'padding-left':+scope.row._level*indent + 'px'} "
+              v-model="scope.row._select"
+              @change="handleCheckAllChange(scope.row)" />
+          </template>
+          {{ scope.row[item.key] }}
+        </slot>
       </template>
     </el-table-column>
-    <el-table-column v-for="(column, index) in columns" v-else :key="column.value" :label="column.text" :width="column.width">
-      <template slot-scope="scope">
-        <!-- Todo -->
-        <!-- eslint-disable-next-line vue/no-confusing-v-for-v-if -->
-        <span v-for="space in scope.row._level" v-if="index === 0" :key="space" class="ms-tree-space"/>
-        <span v-if="iconShow(index,scope.row)" class="tree-ctrl" @click="toggleExpanded(scope.$index)">
-          <i v-if="!scope.row._expanded" class="el-icon-plus"/>
-          <i v-else class="el-icon-minus"/>
-        </span>
-        {{ scope.row[column.value] }}
-      </template>
-    </el-table-column>
-    <slot/>
   </el-table>
 </template>
 
 <script>
-/**
+import treeToArray, { addAttrs } from './eval.js'
-  Auth: Lei.j1ang
+
-  Created: 2018/1/19-13:59
-*/
-import treeToArray from './eval'
 export default {
   name: 'TreeTable',
   props: {
-    /* eslint-disable */
     data: {
-      type: [Array, Object],
+      type: Array,
-      required: true
+      required: true,
+      default: () => []
     },
     columns: {
       type: Array,
       default: () => []
     },
-    evalFunc: Function,
+    defaultExpandAll: {
-    evalArgs: Array,
-    expandAll: {
       type: Boolean,
       default: false
+    },
+    defaultChildren: {
+      type: String,
+      default: 'children'
+    },
+    indent: {
+      type: Number,
+      default: 50
+    }
+  },
+  data() {
+    return {
+      guard: 1
     }
   },
   computed: {
-    // 格式化数据源
+    children() {
-    formatData: function() {
+      return this.defaultChildren
-      let tmp
+    },
-      if (!Array.isArray(this.data)) {
+    tableData() {
-        tmp = [this.data]
+      const data = this.data
-      } else {
+      if (this.data.length === 0) {
-        tmp = this.data
+        return []
       }
+<<<<<<< HEAD
       const func = this.evalFunc || treeToArray
       const args = this.evalArgs ? [].concat([tmp, this.expandAll], this.evalArgs) : [tmp, this.expandAll]
       return func.apply(null, args)
+=======
+      addAttrs(data, {
+        expand: this.defaultExpandAll,
+        children: this.defaultChildren
+      })
+
+      const retval = treeToArray(data, this.defaultChildren)
+      return retval
+>>>>>>> dc6030b... perf[Tree-Table]: refactor tree-table (#1587)
     }
   },
   methods: {
-    showRow: function(row) {
+    addBrother(row, data) {
-      const show = (row.row.parent ? (row.row.parent._expanded && row.row.parent._show) : true)
+      if (row._parent) {
-      row.row._show = show
+        row._parent.children.push(data)
-      return show ? 'animation:treeTableShow 1s;-webkit-animation:treeTableShow 1s;' : 'display:none;'
+      } else {
+        this.data.push(data)
+      }
     },
-    // 切换下级是否展开
+    addChild(row, data) {
-    toggleExpanded: function(trIndex) {
+      if (!row.children) {
-      const record = this.formatData[trIndex]
+        this.$set(row, 'children', [])
-      record._expanded = !record._expanded
+      }
+      row.children.push(data)
     },
-    // 图标显示
+    delete(row) {
-    iconShow(index, record) {
+      const { _index, _parent } = row
-      return (index === 0 && record.children && record.children.length > 0)
+      if (_parent) {
+        _parent.children.splice(_index, 1)
+      } else {
+        this.data.splice(_index, 1)
+      }
+    },
+    getData() {
+      return this.tableData
+    },
+    showRow: function({ row }) {
+      const parent = row._parent
+      const show = parent ? parent._expand && parent._show : true
+      row._show = show
+      return show
+        ? 'animation:treeTableShow 1s;-webkit-animation:treeTableShow 1s;'
+        : 'display:none;'
+    },
+    showSperadIcon(record) {
+      return record[this.children] && record[this.children].length > 0
+    },
+    toggleExpanded(trIndex) {
+      const record = this.tableData[trIndex]
+      const expand = !record._expand
+      record._expand = expand
+    },
+    handleCheckAllChange(row) {
+      this.selcetRecursion(row, row._select, this.defaultChildren)
+      this.isIndeterminate = row._select
+    },
+    selcetRecursion(row, select, children = 'children') {
+      if (select) {
+        this.$set(row, '_expand', true)
+        this.$set(row, '_show', true)
+      }
+      const sub_item = row[children]
+      if (sub_item && sub_item.length > 0) {
+        sub_item.map(child => {
+          child._select = select
+          this.selcetRecursion(child, select, children)
+        })
+      }
     }
   }
 }
 </script>
-<style rel="stylesheet/css">
+
+<style>
 @keyframes treeTableShow {
-    from {opacity: 0;}
+  from {
-    to {opacity: 1;}
+    opacity: 0;
+  }
+  to {
+    opacity: 1;
+  }
 }
 @-webkit-keyframes treeTableShow {
-    from {opacity: 0;}
+  from {
-    to {opacity: 1;}
+    opacity: 0;
   }
-</style>
+  to {
-
+    opacity: 1;
-<style lang="scss" rel="stylesheet/scss" scoped>
-  $color-blue: #2196F3;
-  $space-width: 18px;
-  .ms-tree-space {
-    position: relative;
-    top: 1px;
-    display: inline-block;
-    font-style: normal;
-    font-weight: 400;
-    line-height: 1;
-    width: $space-width;
-    height: 14px;
-    &::before {
-      content: ""
   }
 }
-  .processContainer{
-    width: 100%;
-    height: 100%;
-  }
-  table td {
-    line-height: 26px;
-  }
 
 .tree-ctrl {
   position: relative;
   cursor: pointer;
-    color: $color-blue;
+  color: #2196f3;
-    margin-left: -$space-width;
 }
 </style>

src/components/TreeTable/readme.md

@@ -1,27 +1,51 @@
 ## 写在前面
-此组件仅提供一个创建TreeTable的解决思路
+
+此组件仅提供一个创建 TreeTable 的解决思路，本组件充分利用 vue 插槽的特性，方便用户自定义
+
+evel.js 里面 `addAttrs` 方法会给数据添加几个属性，treeTotable 会对数组扁平化。这些操作都不会破坏源数据，只是会新增属性。
+
+调用 addAttrs 后，因\_\_parent 属性，会造成数据循环引用，使用 JSON.stringify()报错，所以转成 JSON 之前需要清除\_\_parent 属性。
 
 ## prop 说明
-#### *data*
-  **必填**
 
-  原始数据,要求是一个数组或者对象
+- data（原始数据，要求是一个数组或者对象）
-  ```javascript
+- columns（列属性,要求是一个数组）
-    [{
+- renderContent（数组扁平化方法（可选））
+- defaultExpandAll（默认是否全部展开，默认全部展开）
+- defaultChildren（子元素名，默认为 children）
+- spreadOffset（扩展符号的偏移量，默认为 50px）
+- checkboxOffset（复选框的偏移量，默认为 50px）
+
+---
+
+### 代码示例
+
+- data(**必填**)
+
+原始数据,
+
+```js
+const data = [
+  {
     key1: value1,
     key2: value2,
-      children: [{
+    children: [
+      {
         key1: value1
       },
       {
         key1: value1
-      }]
+      }
+    ]
   },
   {
     key1: value1
-    }]
+  }
+]
 ```
+
 或者
+
 ```javascript
    {
      key1: value1,
@@ -35,55 +59,41 @@
    }
 ```
 
-#### columns
+- columns
-  列属性,要求是一个数组
 
-  1. text: 显示在表头的文字
+1. label: 显示在表头的文字
-  2. value: 对应data的key。treeTable将显示相应的value
+2. key: 对应 data 的 key。treeTable 将显示相应的 value
 3. width: 每列的宽度，为一个数字(可选)
 
-  如果你想要每个字段都有自定义的样式或者嵌套其他组件，columns可不提供，直接像在el-table一样写即可，如果没有自定义内容，提供columns将更加的便捷方便
+树表组件将会根据 columns 的 key 属性生成具名插槽，如果你需要对列数据进行自定义，通过插槽即可实现
 
-  如果你有几个字段是需要自定义的，几个不需要，那么可以将不需要自定义的字段放入columns，将需要自定义的内容放入到slot中，详情见后文
 ```javascript
-  [{
+const columns = [
-    value:string,
+  // 建议第一列做展开收缩操作
-    text:string,
+  { label: '', key: '__spread', width: '200' },
+  // 如果添加复选框
+  { label: '', key: '__checkbox', width: '200' },
+  {
+    label: string,
+    key: string,
     width: number
-  },{
+  },
-    value:string,
+  {
-    text:string,
+    label: string,
+    key: string,
     width: number
-  }]
+  }
+]
 ```
 
-#### expandAll
+#### renderContent
-  是否默认全部展开，boolean值，默认为false
 
-#### evalFunc
 解析函数，function，非必须
 
 如果不提供，将使用默认的[evalFunc](./eval.js)
 
-  如果提供了evalFunc,那么会用提供的evalFunc去解析data，并返回treeTable渲染所需要的值。如何编写一个evalFunc，请参考[*eval.js*](https://github.com/PanJiaChen/vue-element-admin/blob/master/src/components/TreeTable/eval.js)或[*customEval.js*](https://github.com/PanJiaChen/vue-element-admin/blob/master/src/views/table/treeTable/customEval.js)
+如果提供了 evalFunc,那么会用提供的 evalFunc 去解析 data，并返回 treeTable 渲染所需要的值。
-
-#### evalArgs
-  解析函数的参数，是一个数组
-
-  **请注意，自定义的解析函数参数第一个为this.data，第二个参数为， this.expandAll,你不需要在evalArgs填写。一定记住，这两个参数是强制性的，并且位置不可颠倒** *this.data为需要解析的数据，this.expandAll为是否默认展开*
-
-  如你的解析函数需要的参数为`(this.data, this.expandAll,1,2,3,4)`，那么你只需要将`[1,2,3,4]`赋值给`evalArgs`就可以了
-
-  如果你的解析函数参数只有`(this.data, this.expandAll)`,那么就可以不用填写evalArgs了
-
-  具体可参考[*customEval.js*](https://github.com/PanJiaChen/vue-element-admin/blob/master/src/views/table/treeTable/customEval.js)的函数参数和[customTreeTable](https://github.com/PanJiaChen/vue-element-admin/blob/master/src/views/table/treeTable/customTreeTable.vue)的`evalArgs`属性值
-
- ## slot
- 这是一个自定义列的插槽。
-
- 默认情况下，treeTable只有一行行展示数据的功能。但是一般情况下，我们会要给行加上一个操作按钮或者根据当行数据展示不同的样式，这时我们就需要自定义列了。请参考[customTreeTable](https://github.com/PanJiaChen/vue-element-admin/blob/master/src/views/table/treeTable/customTreeTable.vue)，[实例效果](https://panjiachen.github.io/vue-element-admin/#/table/tree-table)
-
- `slot`和`columns属性`可同时存在,columns里面的数据列会在slot自定义列的左边展示
 
 ## 其他
+
 如果有其他的需求，请参考[el-table](http://element-cn.eleme.io/#/en-US/component/table)的 api 自行修改 index.vue

src/views/table/treeTable/customEval.js

@@ -1,48 +0,0 @@
-/**
-* @Author: jianglei
-* @Date:   2017-10-12 12:06:49
-*/
-'use strict'
-import Vue from 'vue'
-export default function treeToArray(data, expandAll, parent, level, item) {
-  const marLTemp = []
-  let tmp = []
-  Array.from(data).forEach(function(record) {
-    if (record._expanded === undefined) {
-      Vue.set(record, '_expanded', expandAll)
-    }
-    let _level = 1
-    if (level !== undefined && level !== null) {
-      _level = level + 1
-    }
-    Vue.set(record, '_level', _level)
-    // 如果有父元素
-    if (parent) {
-      Vue.set(record, 'parent', parent)
-      // 如果父元素有偏移量，需要计算在this的偏移量中
-      // 偏移量还与前面同级元素有关，需要加上前面所有元素的长度和
-      if (!marLTemp[_level]) {
-        marLTemp[_level] = 0
-      }
-      Vue.set(record, '_marginLeft', marLTemp[_level] + parent._marginLeft)
-      Vue.set(record, '_width', record[item] / parent[item] * parent._width)
-      // 在本次计算过偏移量后加上自己长度，以供下一个元素使用
-      marLTemp[_level] += record._width
-    } else {
-      // 如果为根
-      // 初始化偏移量存储map
-      marLTemp[record.id] = []
-      // map中是一个数组，存储的是每级的长度和
-      // 初始情况下为0
-      marLTemp[record.id][_level] = 0
-      Vue.set(record, '_marginLeft', 0)
-      Vue.set(record, '_width', 1)
-    }
-    tmp.push(record)
-    if (record.children && record.children.length > 0) {
-      const children = treeToArray(record.children, expandAll, record, _level, item)
-      tmp = tmp.concat(children)
-    }
-  })
-  return tmp
-}

src/views/table/treeTable/customTreeTable.vue

@@ -1,137 +1,162 @@
 <template>
+  <div>
     <div class="app-container">
-
       <el-tag style="margin-bottom:20px;">
-      <a href="https://github.com/PanJiaChen/vue-element-admin/tree/master/src/components/TreeTable" target="_blank">Documentation</a>
+        <a
+          href="https://github.com/PanJiaChen/vue-element-admin/tree/master/src/components/TreeTable"
+          target="_blank"
+        >Documentation</a>
       </el-tag>
 
-    <tree-table :data="data" :eval-func="func" :eval-args="args" :expand-all="expandAll" border>
+      <tree-table
-      <el-table-column label="事件">
+        ref="TreeTable"
-        <template slot-scope="scope">
+        :data="tableData"
-          <span style="color:sandybrown">{{ scope.row.event }}</span>
+        :default-expand-all="true"
-          <el-tag>{{ scope.row.timeLine+'ms' }}</el-tag>
+        :columns="columns"
+        border
+        default-children="children"
+        @selection-change	="selectChange"
+      >
+
+        <template slot="selection">
+          <el-table-column type="selection" align="center" width="55"/>
+        </template>
+
+        <template slot="pre-column">
+          <el-table-column type="expand" width="55">
+            <template>
+              <el-tag type="info">
+                Here is just a placeholder slot, you can display anything.
+              </el-tag>
             </template>
           </el-table-column>
-      <el-table-column label="时间线">
+        </template>
-        <template slot-scope="scope">
+
+        <template slot="timeline" slot-scope="{scope}">
+
           <el-tooltip :content="scope.row.timeLine+'ms'" effect="dark" placement="left">
             <div class="processContainer">
               <div
-                :style="{ width:scope.row._width * 500+'px',
+                :style="{ width:(scope.row.timeLine||0) * 3+'px',
-                          background:scope.row._width>0.5?'rgba(233,0,0,.5)':'rgba(0,0,233,0.5)',
+                          background:scope.row.timeLine>50?'rgba(233,0,0,.5)':'rgba(0,0,233,0.5)',
-                          marginLeft:scope.row._marginLeft * 500+'px' }"
+                          marginLeft:scope.row._level * 50+'px' }"
                 class="process">
                 <span style="display:inline-block"/>
               </div>
             </div>
           </el-tooltip>
+
         </template>
-      </el-table-column>
+
-      <el-table-column label="操作" width="200">
+        <template slot="append" slot-scope="{scope}">
-        <template slot-scope="scope">
+          <el-button
-          <el-button type="text" @click="message(scope.row)">点击</el-button>
+            size="mini"
+            type="primary"
+            @click="addMenuItem(scope.row,'brother')"
+          >Append Brother
+          </el-button>
+          <el-button
+            size="mini"
+            type="primary"
+            @click="addMenuItem(scope.row,'children')"
+          >Append Child
+          </el-button>
+        </template>
+        <template slot="operation" slot-scope="{scope}">
+          <el-button size="mini" type="success" @click="editItem(scope.row)">Edit</el-button>
+          <el-button size="mini" type="danger" @click="deleteItem(scope.row)">Delete</el-button>
         </template>
-      </el-table-column>
       </tree-table>
     </div>
+
+    <el-dialog :visible.sync="dialogFormVisible" title="Edit">
+      <el-form :model="tempItem" label-width="100px" style="width:600px">
+        <el-form-item label="Name">
+          <el-input v-model.trim="tempItem.name" placeholder="Name"/>
+        </el-form-item>
+      </el-form>
+      <span slot="footer" class="dialog-footer">
+        <el-button @click="dialogFormVisible = false">Cancel</el-button>
+        <el-button type="primary" @click="updateItem">Confirm</el-button>
+      </span>
+    </el-dialog>
+
+  </div>
 </template>
 
 <script>
-/**
+
-  Auth: Lei.j1ang
+import TreeTable from '@/components/TreeTable'
-  Created: 2018/1/19-14:54
+import { data } from './data.js'
-*/
-import treeTable from '@/components/TreeTable'
-import treeToArray from './customEval'
 
 export default {
-  name: 'CustomTreeTableDemo',
+  components: { TreeTable },
-  components: { treeTable },
   data() {
     return {
-      func: treeToArray,
+      tableData: [],
-      expandAll: false,
+      tempItem: {},
-      data:
+      dialogFormVisible: false,
+      columns: [
         {
-          id: 1,
+          label: 'Name',
-          event: '事件1',
+          key: 'name',
-          timeLine: 100,
+          expand: true
-          comment: '无',
-          children: [
-            {
-              id: 2,
-              event: '事件2',
-              timeLine: 10,
-              comment: '无'
         },
         {
-              id: 3,
+          label: 'Timeline',
-              event: '事件3',
+          key: 'timeline'
-              timeLine: 90,
-              comment: '无',
-              children: [
-                {
-                  id: 4,
-                  event: '事件4',
-                  timeLine: 5,
-                  comment: '无'
         },
         {
-                  id: 5,
+          label: 'Append',
-                  event: '事件5',
+          key: 'append',
-                  timeLine: 10,
+          width: 300
-                  comment: '无'
         },
         {
-                  id: 6,
+          label: 'Operation',
-                  event: '事件6',
+          key: 'operation',
-                  timeLine: 75,
+          width: 160
-                  comment: '无',
-                  children: [
-                    {
-                      id: 7,
-                      event: '事件7',
-                      timeLine: 50,
-                      comment: '无',
-                      children: [
-                        {
-                          id: 71,
-                          event: '事件71',
-                          timeLine: 25,
-                          comment: 'xx'
-                        },
-                        {
-                          id: 72,
-                          event: '事件72',
-                          timeLine: 5,
-                          comment: 'xx'
-                        },
-                        {
-                          id: 73,
-                          event: '事件73',
-                          timeLine: 20,
-                          comment: 'xx'
-                        }
-                      ]
-                    },
-                    {
-                      id: 8,
-                      event: '事件8',
-                      timeLine: 25,
-                      comment: '无'
         }
       ]
     }
-              ]
-            }
-          ]
   },
-      args: [null, null, 'timeLine']
+  created() {
-    }
+    this.getData()
   },
   methods: {
-    message(row) {
+    getData() {
-      this.$message.info(row.event)
+      this.tableData = data
+    },
+    editItem(row) {
+      this.tempItem = Object.assign({}, row)
+      this.dialogFormVisible = true
+    },
+    updateItem() {
+      const data = this.$refs.TreeTable.getData()
+      const { _id } = this.tempItem
+
+      for (let i = 0; i < data.length; i++) {
+        if (data[i]._id === _id) {
+          data.splice(i, 1, Object.assign({}, this.tempItem))
+          break
+        }
+      }
+
+      this.dialogFormVisible = false
+    },
+    addMenuItem(row, type) {
+      if (type === 'children') {
+        this.$refs.TreeTable.addChild(row, { name: 'child' })
+      }
+
+      if (type === 'brother') {
+        this.$refs.TreeTable.addBrother(row, { name: 'brother' })
+      }
+    },
+    deleteItem(row) {
+      this.$refs.TreeTable.delete(row)
+    },
+    selectChange(val) {
+      console.log(val)
     }
   }
 }

src/views/table/treeTable/data.js

@@ -0,0 +1,49 @@
+export const data = [
+  {
+    name: '1',
+    timeLine: 100,
+    children: [
+      {
+        name: '1-1',
+        timeLine: 20
+      },
+      {
+        name: '1-2',
+        timeLine: 60,
+        children: [
+          {
+            name: '1-2-1',
+            timeLine: 35
+          },
+          {
+            name: '1-2-2',
+            timeLine: 25
+          }
+        ]
+      }
+    ]
+  },
+  {
+    name: '2',
+    timeLine: 80,
+    children: [
+      {
+        name: '2-1',
+        timeLine: 30
+      },
+      {
+        name: '2-2',
+        timeLine: 50
+      },
+      {
+        name: '2-3',
+        timeLine: 60
+      }
+    ]
+  },
+  {
+    name: '3',
+    timeLine: 40
+  }
+]
+

src/views/table/treeTable/treeTable.vue

@@ -1,20 +1,48 @@
 <template>
   <div class="app-container">
 
-    <el-tag style="margin-bottom:20px;">
+    <div style="margin-bottom:20px;">
-      <a href="https://github.com/PanJiaChen/vue-element-admin/tree/master/src/components/TreeTable" target="_blank">Documentation</a>
-    </el-tag>
 
-    <tree-table :data="data" :columns="columns" border/>
+      <el-button type="primary" class="option-item">
+        <a href="https://github.com/PanJiaChen/vue-element-admin/tree/master/src/components/TreeTable" target="_blank">Documentation</a>
+      </el-button>
+
+      <div class="option-item">
+        <el-tag>Expand All</el-tag>
+        <el-switch
+          v-model="defaultExpandAll"
+          active-color="#13ce66"
+          inactive-color="#ff4949"
+          @change="reset"/>
+      </div>
+
+      <div class="option-item">
+        <el-tag>Show Checkbox</el-tag>
+        <el-switch
+          v-model="showCheckbox"
+          active-color="#13ce66"
+          inactive-color="#ff4949"
+        />
+      </div>
+
+    </div>
+
+    <tree-table :key="key" :default-expand-all="defaultExpandAll" :data="data" :columns="columns" border>
+      <template slot="scope" slot-scope="{scope}">
+        <el-tag>level: {{ scope.row._level }}</el-tag>
+        <el-tag>expand: {{ scope.row._expand }}</el-tag>
+        <el-tag>select: {{ scope.row._select }}</el-tag>
+      </template>
+      <template slot="operation" slot-scope="{scope}">
+        <el-button type="primary" size="" @click="click(scope)">Click</el-button>
+      </template>
+    </tree-table>
 
   </div>
 </template>
 
 <script>
-/**
+
-  Auth: Lei.j1ang
-  Created: 2018/1/19-14:54
-*/
 import treeTable from '@/components/TreeTable'
 
 export default {
@@ -22,99 +50,103 @@ export default {
   components: { treeTable },
   data() {
     return {
+      defaultExpandAll: false,
+      showCheckbox: true,
+      key: 1,
       columns: [
         {
-          text: '事件',
+          label: 'Checkbox',
-          value: 'event',
+          checkbox: true
-          width: 200
         },
         {
-          text: 'ID',
+          label: '',
-          value: 'id'
+          key: 'id',
+          expand: true
         },
         {
-          text: '时间线',
+          label: 'Event',
-          value: 'timeLine'
+          key: 'event',
+          width: 200,
+          align: 'left'
         },
         {
-          text: '备注',
+          label: 'Scope',
-          value: 'comment'
+          key: 'scope'
+        },
+        {
+          label: 'Operation',
+          key: 'operation'
         }
       ],
       data: [
         {
           id: 0,
-          event: '事件1',
+          event: 'Event-0',
-          timeLine: 50,
+          timeLine: 50
-          comment: '无'
         },
         {
           id: 1,
-          event: '事件1',
+          event: 'Event-1',
           timeLine: 100,
-          comment: '无',
           children: [
             {
               id: 2,
-              event: '事件2',
+              event: 'Event-2',
-              timeLine: 10,
+              timeLine: 10
-              comment: '无'
+
             },
             {
               id: 3,
-              event: '事件3',
+              event: 'Event-3',
               timeLine: 90,
-              comment: '无',
               children: [
                 {
                   id: 4,
-                  event: '事件4',
+                  event: 'Event-4',
-                  timeLine: 5,
+                  timeLine: 5
-                  comment: '无'
+
                 },
                 {
                   id: 5,
-                  event: '事件5',
+                  event: 'Event-5',
-                  timeLine: 10,
+                  timeLine: 10
-                  comment: '无'
+
                 },
                 {
                   id: 6,
-                  event: '事件6',
+                  event: 'Event-6',
                   timeLine: 75,
-                  comment: '无',
+
                   children: [
                     {
                       id: 7,
-                      event: '事件7',
+                      event: 'Event-7',
                       timeLine: 50,
-                      comment: '无',
+
                       children: [
                         {
                           id: 71,
-                          event: '事件71',
+                          event: 'Event-7-1',
-                          timeLine: 25,
+                          timeLine: 25
-                          comment: 'xx'
+
                         },
                         {
                           id: 72,
-                          event: '事件72',
+                          event: 'Event-7-2',
-                          timeLine: 5,
+                          timeLine: 5
-                          comment: 'xx'
+
                         },
                         {
                           id: 73,
-                          event: '事件73',
+                          event: 'Event-7-3',
-                          timeLine: 20,
+                          timeLine: 20
-                          comment: 'xx'
                         }
                       ]
                     },
                     {
                       id: 8,
-                      event: '事件8',
+                      event: 'Event-8',
-                      timeLine: 25,
+                      timeLine: 25
-                      comment: '无'
                     }
                   ]
                 }
@@ -124,6 +156,34 @@ export default {
         }
       ]
     }
+  },
+  watch: {
+    showCheckbox(val) {
+      if (val) {
+        this.columns.unshift({
+          label: 'Checkbox',
+          checkbox: true
+        })
+      } else {
+        this.columns.shift()
+      }
+      this.reset()
+    }
+  },
+  methods: {
+    reset() {
+      ++this.key
+    },
+    click(scope) {
+      console.log(scope)
+    }
   }
 }
 </script>
+
+<style scoped>
+.option-item{
+  display: inline-block;
+  margin-right: 15px;
+}
+</style>