基于iview的treegrid组件

树形数据展开效果图基于iview的treegrid组件_第1张图片

页面引用

<template>
  <tree-grid :items='data'
             :columns='columns'
             @on-row-click='rowClick'
             @on-selection-change='selectionClick'
             @on-sort-change='sortClick'></tree-grid>
</template>
<script>
import TreeGrid from './TreeGrid2.0'
export default {
     
  data () {
     
    return {
     
      columns: [
        // {
     
        //   type: 'selection',
        //   width: '50',
        // },
        {
     
          title: '编码',
          key: 'code',
          sortable: true,
          width: '150',
        }, {
     
          title: '名称',
          sortable: true,
          key: 'name',
          width: '150',
        }, {
     
          title: '状态',
          key: 'status',
          width: '150',
        }, {
     
          title: '备注',
          key: 'remark',
          width: '150',
        }, {
     
          title: '操作',
          type: 'action',
          actions: [{
     
            type: 'primary',
            text: '编辑'
          }, {
     
            type: 'error',
            text: '删除'
          }],
          width: '150',
        }],
      data: [{
     
        id: '1',
        code: '0001',
        name: '一级数据1',
        status: '启用',
        remark: '一级数据说明1',
        _checked: true
      }, {
     
        id: '2',
        code: '0002',
        name: '一级数据2',
        status: '启用',
        remark: '一级数据说明2',
        children: [
          {
     
            id: '01',
            code: '00001',
            name: '二级数据1',
            status: '启用',
            remark: '二级数据说明1',
            children: [
              {
     
                id: '001',
                code: '000001',
                name: '三级数据',
                status: '启用',
                remark: '三级数据说明',

              }]
          }, {
     
            id: '02',
            code: '00002',
            name: '二级数据2',
            status: '启用',
            remark: '二级数据说明2',
          }
        ]
      }, {
     
        id: '3',
        code: '0003',
        name: '一级数据3',
        status: '启用',
        remark: '一级数据说明3'
      }, {
     
        id: '4',
        code: '0004',
        name: '一级数据4',
        status: '启用',
        remark: '一级数据说明4'
      }]
    }
  },
  components: {
     
    TreeGrid
  },
  methods: {
     
    rowClick (data, index, event, text) {
     
      console.log('当前行数据:' + data)
      console.log('点击行号:' + index)
      console.log('点击事件:' + event)
      console.log('按钮名称:' + text)  // 区分事件
    },
    selectionClick (arr) {
     
      console.log('选中数据id数组:' + arr)
    },
    sortClick (key, type) {
     
      console.log('排序字段:' + key)
      console.log('排序规则:' + type)
    }
  }
}
</script>

TreeGrid.vue文件

<!--
 * @events  @on-row-click 单击行或者单击操作按钮方法
            @on-selection-change  多选模式下 选中项变化时触发
            @on-sort-change  排序时有效,当点击排序时触发
 -->
<template>
  <div :style="{width:tableWidth}"
       class='autoTbale'>
    <table class="table table-bordered"
           id='hl-tree-table'>
      <thead>
        <tr>
          <th v-for="(column,index) in cloneColumns">
            <label v-if="column.type === 'selection'">
              <input type="checkbox"
                     v-model="checks"
                     @click="handleCheckAll">
            </label>
            <label v-else>
              {
     {
      renderHeader(column, index) }}
              <span class="ivu-table-sort"
                    v-if="column.sortable">
                <Icon type="md-arrow-dropup"
                      :class="{on: column._sortType === 'asc'}"
                      @click.native="handleSort(index, 'asc')" />
                <Icon type="md-arrow-dropdown"
                      :class="{on: column._sortType === 'desc'}"
                      @click.native="handleSort(index, 'desc')" />
              </span>
            </label>
          </th>
        </tr>
      </thead>
      <tbody>
        <tr v-for="(item,index) in initItems"
            :key="item.id"
            v-show="show(item)"
            :class="{'child-tr':item.parent}">
          <td v-for="(column,snum) in columns"
              :key="column.key"
              :style=tdStyle(column)>
            <!-- <label v-if="column.type === 'selection'">
              <input type="checkbox"
                     :value="item.id"
                     v-model="checkGroup"
                     @click="handleCheckClick(item,$event,index)">
            </label> -->
            <!-- 操作列 -->
            <div v-if="column.type === 'action'">
              <i-button :type="action.type"
                        size="small"
                        @click="RowClick(item,$event,index,action.text)"
                        v-for='action in (column.actions)'
                        :key="action.text">{
     {
     action.text}}</i-button>
            </div>
            <label @click="toggle(index,item)"
                   v-if="!column.type">
              // 展开图标
              <span  v-if='snum==iconRow()'>
               <i v-html='item.spaceHtml'></i>
                <i v-if="item.children&&item.children.length>0">
                  <Icon type="ios-arrow-forward" v-if="!item.expanded"/>
                  <Icon type="ios-arrow-down" v-else/>
                </i>
                <!-- <i v-if="item.children&&item.children.length>0"
                   class="ivu-icon"
                   :class="{'ios-arrow-forward':!item.expanded,'ivu-icon-minus-circled':item.expanded }"></i>
                <i v-else
                   class="ms-tree-space"></i> -->
              </span>
              {
     {
     renderBody(item,column) }}
            </label>
          </td>
        </tr>
      </tbody>
    </table>
  </div>
</template>
<script>
export default {
     
  name: 'treeGrid',
  props: {
     
    columns: Array,
    items: {
     
      type: Array,
      default: function () {
     
        return [];
      }
    }
  },
  data () {
     
    return {
     
      initItems: [], //处理后数据数组
      cloneColumns: [], //处理后的表头数据
      checkGroup: [], //复选框数组
      checks: false, //全选
      screenWidth: document.body.clientWidth, //自适应宽
      tdsWidth: 0, //td总宽
      timer: false, //控制监听时长
      dataLength: 0, //树形数据长度
    }
  },
  computed: {
     
    tableWidth () {
     
      return this.tdsWidth > this.screenWidth && this.screenWidth > 0 ? this.screenWidth + 'px' : '100%'
    }
  },
  watch: {
     
    screenWidth (val) {
     
      if (!this.timer) {
     
        this.screenWidth = val
        this.timer = true
        setTimeout(() => {
     
          this.timer = false
        }, 400)
      }
    },
    items () {
     
      if (this.items) {
     
        this.dataLength = this.Length(this.items)
        this.initData(this.deepCopy(this.items), 1, null);
        this.checkGroup = this.renderCheck(this.items)
        if (this.checkGroup.length == this.dataLength) {
     
          this.checks = true
        } else {
     
          this.checks = false
        }
      }
    },
    columns: {
     
      handler () {
     
        this.cloneColumns = this.makeColumns();
      },
      deep: true
    },
    checkGroup (data) {
     
      this.checkAllGroupChange(data)
    },
  },
  mounted () {
     
    if (this.items) {
     
      this.dataLength = this.Length(this.items)
      this.initData(this.deepCopy(this.items), 1, null);
      this.cloneColumns = this.makeColumns();
      this.checkGroup = this.renderCheck(this.items)
      if (this.checkGroup.length == this.dataLength) {
     
        this.checks = true
      } else {
     
        this.checks = false
      }
    }
    // 绑定onresize事件 监听屏幕变化设置宽
    this.$nextTick(() => {
     
      this.screenWidth = document.body.clientWidth
    })
    window.onresize = () => {
     
      return (() => {
     
        window.screenWidth = document.body.clientWidth
        this.screenWidth = window.screenWidth
      })()
    }
  },
  methods: {
     
    // 有无多选框折叠位置优化
    iconRow () {
     
      for (var i = 0, len = this.columns.length; i < len; i++) {
     
        if (this.columns[i].type == 'selection') {
     
          return 1
        }
      }
      return 0
    },
    // 设置td宽度,td的align
    tdStyle (column) {
     
      var style = {
     }
      if (column.align) {
     
        style["text-align"] = column.align;
      }
      if (column.width) {
     
        style["min-width"] = column.width + 'px';
      }
      return style;
    },

    // 排序事件
    handleSort (index, type) {
     
      this.cloneColumns.forEach((col) => col._sortType = 'normal');
      if (this.cloneColumns[index]._sortType === type) {
     
        this.cloneColumns[index]._sortType = 'normal'
      } else {
     
        this.cloneColumns[index]._sortType = type
      }
      this.$emit('on-sort-change', this.cloneColumns[index]['key'], this.cloneColumns[index]['_sortType'])
    },
    // 点击某一行事件
    RowClick (data, event, index, text) {
     
      let result = this.makeData(data)
      this.$emit('on-row-click', result, event, index, text)
    },
    // 点击事件 返回数据处理
    makeData (data) {
     
      const t = this.type(data);
      let o;
      if (t === 'array') {
     
        o = [];
      } else if (t === 'object') {
     
        o = {
     };
      } else {
     
        return data;
      }

      if (t === 'array') {
     
        for (let i = 0; i < data.length; i++) {
     
          o.push(this.makeData(data[i]));
        }
      } else if (t === 'object') {
     
        for (let i in data) {
     
          if (i != 'spaceHtml' && i != 'parent' && i != 'level' && i != 'expanded' && i != 'isShow' && i !=
            'load') {
     
            o[i] = this.makeData(data[i]);
          }
        }
      }
      return o;
    },
    // 处理表头数据
    makeColumns () {
     
      let columns = this.deepCopy(this.columns);
      this.tdsWidth = 0
      columns.forEach((column, index) => {
     
        column._index = index;
        column._width = column.width ? column.width : '';
        column._sortType = 'normal';
        this.tdsWidth += column.width ? parseFloat(column.width) : 0;
      });
      return columns;
    },
    // 数据处理 增加自定义属性监听
    initData (items, level, parent) {
     
      this.initItems = []
      let spaceHtml = "";
      for (var i = 1; i < level; i++) {
     
        spaceHtml += ""
      }
      items.forEach((item, index) => {
     
        item = Object.assign({
     }, item, {
     
          "parent": parent,
          "level": level,
          "spaceHtml": spaceHtml
        });
        if ((typeof item.expanded) == "undefined") {
     
          item = Object.assign({
     }, item, {
     
            "expanded": false
          });
        }
        if ((typeof item.show) == "undefined") {
     
          item = Object.assign({
     }, item, {
     
            "isShow": false
          });
        }
        if ((typeof item.isChecked) == "undefined") {
     
          item = Object.assign({
     }, item, {
     
            "isChecked": false
          });
        }
        item = Object.assign({
     }, item, {
     
          "load": (item.expanded ? true : false)
        });
        this.initItems.push(item);
        if (item.children && item.expanded) {
     
          this.initData(item.children, level + 1, item);
        }
      })
    },
    //  隐藏显示
    show (item) {
     
      return ((item.level == 1) || (item.parent && item.parent.expanded && item.isShow));
    },
    toggle (index, item) {
     
      let level = item.level + 1;
      let spaceHtml = "";
      for (var i = 1; i < level; i++) {
     
        spaceHtml += ""
      }
      if (item.children) {
     
        if (item.expanded) {
     
          item.expanded = !item.expanded;
          this.close(index, item);
        } else {
     
          item.expanded = !item.expanded;
          if (item.load) {
     
            this.open(index, item);
          } else {
     
            item.load = true;
            item.children.forEach((child, childIndex) => {
     
              this.initItems.splice((index + childIndex + 1), 0, child);
              //设置监听属性
              this.$set(this.initItems[index + childIndex + 1], 'parent', item);
              this.$set(this.initItems[index + childIndex + 1], 'level', level);
              this.$set(this.initItems[index + childIndex + 1], 'spaceHtml', spaceHtml);
              this.$set(this.initItems[index + childIndex + 1], 'isShow', true);
              this.$set(this.initItems[index + childIndex + 1], 'expanded', false);
            })
          }
        }
      }
    },
    open (index, item) {
     
      if (item.children) {
     
        item.children.forEach((child, childIndex) => {
     
          child.isShow = true;
          if (child.children && child.expanded) {
     
            this.open(index + childIndex + 1, child);
          }
        })
      }
    },
    close (index, item) {
     
      if (item.children) {
     
        item.children.forEach((child, childIndex) => {
     
          child.isShow = false;
          child.expanded = false;
          if (child.children) {
     
            this.close(index + childIndex + 1, child);
          }
        })
      }
    },
    //点击check勾选框,判断是否有children节点 如果有就一并勾选
    handleCheckClick (data, event, index) {
     
      data.isChecked = !data.isChecked;
      var arr = data.children;
      if (arr) {
     
        if (data.isChecked) {
     
          this.checkGroup.push(data.id);
          for (let i = 0; i < arr.length; i++) {
     
            this.checkGroup.push(arr[i].id)
          }
        } else {
     
          for (var i = 0; i < this.checkGroup.length; i++) {
     
            if (this.checkGroup[i] == data.id) {
     
              this.checkGroup.splice(i, 1)
            }
            for (var j = 0; j < arr.length; j++) {
     
              if (this.checkGroup[i] == arr[j].id) {
     
                this.checkGroup.splice(i, 1);
              }
            }
          }
        }
      }
    },
    //checkbox 全选 选择事件
    handleCheckAll () {
     
      this.checks = !this.checks;
      if (this.checks) {
     
        this.checkGroup = this.getArray(this.checkGroup.concat(this.All(this.items)))
      } else {
     
        this.checkGroup = []
      }
      // this.$emit('on-selection-change', this.checkGroup)
    },
    // 数组去重
    getArray (a) {
     
      var hash = {
     },
        len = a.length,
        result = [];
      for (var i = 0; i < len; i++) {
     
        if (!hash[a[i]]) {
     
          hash[a[i]] = true;
          result.push(a[i]);
        }
      }
      return result;
    },
    checkAllGroupChange (data) {
     
      if (this.dataLength > 0 && data.length === this.dataLength) {
     
        this.checks = true;
      } else {
     
        this.checks = false;
      }
      this.$emit('on-selection-change', this.checkGroup)
    },
    All (data) {
     
      let arr = []
      data.forEach((item) => {
     
        arr.push(item.id)
        if (item.children && item.children.length > 0) {
     
          arr = arr.concat(this.All(item.children));
        }
      })
      return arr
    },
    // 返回树形数据长度
    Length (data) {
     
      let length = data.length
      data.forEach((child) => {
     
        if (child.children) {
     
          length += this.Length(child.children)
        }
      })
      return length;
    },
    // 返回表头
    renderHeader (column, $index) {
     
      if ('renderHeader' in this.columns[$index]) {
     
        return this.columns[$index].renderHeader(column, $index);
      } else {
     
        return column.title || '#';
      }
    },

    // 返回内容
    renderBody (row, column, index) {
     
      return row[column.key]
    },
    // 默认选中
    renderCheck (data) {
     
      let arr = []
      data.forEach((item) => {
     
        if (item._checked) {
     
          arr.push(item.id)
        }
        if (item.children && item.children.length > 0) {
     
          arr = arr.concat(this.renderCheck(item.children));
        }
      })
      return arr
    },
    // 深度拷贝函数
    deepCopy (data) {
     
      var t = this.type(data),
        o, i, ni;
      if (t === 'array') {
     
        o = [];
      } else if (t === 'object') {
     
        o = {
     };
      } else {
     
        return data;
      }
      if (t === 'array') {
     
        for (i = 0, ni = data.length; i < ni; i++) {
     
          o.push(this.deepCopy(data[i]));
        }
        return o;
      } else if (t === 'object') {
     
        for (i in data) {
     
          o[i] = this.deepCopy(data[i]);
        }
        return o;
      }

    },
    type (obj) {
     
      var toString = Object.prototype.toString;
      var map = {
     
        '[object Boolean]': 'boolean',
        '[object Number]': 'number',
        '[object String]': 'string',
        '[object Function]': 'function',
        '[object Array]': 'array',
        '[object Date]': 'date',
        '[object RegExp]': 'regExp',
        '[object Undefined]': 'undefined',
        '[object Null]': 'null',
        '[object Object]': 'object'
      };
      return map[toString.call(obj)];
    }
  },
  beforeDestroy () {
     
    window.onresize = null
  }
}
</script>
<style>
.autoTbale {
     
  overflow: auto;
}

table {
     
  width: 100%;
  border-spacing: 0;
  border-collapse: collapse;
}

.table-bordered {
     
  border: 1px solid #ebebeb;
}

.table > tbody > tr > td,
.table > tbody > tr > th,
.table > thead > tr > td,
.table > thead > tr > th {
     
  border-top: 1px solid #e7eaec;
  line-height: 1.42857;
  padding: 8px;
  vertical-align: middle;
}

.table-bordered > tbody > tr > td,
.table-bordered > tbody > tr > th,
.table-bordered > tfoot > tr > td,
.table-bordered > tfoot > tr > th,
.table-bordered > thead > tr > td,
.table-bordered > thead > tr > th {
     
  border: 1px solid #e7e7e7;
}

.table > thead > tr > th {
     
  border-bottom: 1px solid #ddd;
}

.table-bordered > thead > tr > td,
.table-bordered > thead > tr > th {
     
  background-color: #f5f5f6;
}

#hl-tree-table > tbody > tr {
     
  background-color: #fbfbfb;
}

#hl-tree-table > tbody > .child-tr {
     
  background-color: #fff;
}

label {
     
  margin: 0 8px;
}

.ms-tree-space {
     
  position: relative;
  top: 1px;
  display: inline-block;
  font-style: normal;
  font-weight: 400;
  line-height: 1;
  width: 14px;
  height: 14px;
}

.ms-tree-space::before {
     
  content: '';
}

#hl-tree-table th > label {
     
  margin: 0;
}
</style>

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