vue中使用element来创建目录列表

<template>
    <div v-loading="isLoading" class="comp-tree" @click="hiddenMenu">
        <el-tree ref="SlotTree"
            :data="treeData"
            :props="defaultProps"
            :expand-on-click-node="true"
            highlight-current
            :node-key="NODE_KEY"
            @node-click="handleNodeClick"
            @node-contextmenu="rightClick"
            @node-drag-start = "handleDragStart"
      @node-drop="handleDrop"
            :draggable = draggable
            default-expand-all
        >
            <div class="comp-tr-node" slot-scope="{ node, data }">
                <!-- 编辑状态 -->
                <template v-if="node.isEdit">
                    <el-input v-model="data.menuName"
                        autofocus
                        size="mini"
                        :ref="‘slotTreeInput‘+data.recordId"
                        @keyup.enter.native="handleInput(node, data)">
                    </el-input>
                </template>

                <!-- 非编辑状态 -->
                <template v-else>
                    <!-- 名称： 新增节点增加class（is-new） -->
                    <span>
                        <span>
                            {{ node.label }}
                        </span>
                    </span>
                </template>
            </div>
        </el-tree>

         <!-- 鼠标右键产生的选项 -->
      <div v-show="menuVisible" id="menu">
        <el-menu
          class="el-menu-vertical rightClickMenu"
          @select="handleRightSelect"
                    text-color="#303133"
                    active-text-color = "#303133"
                    >
          <el-menu-item index="1" class="menuItem">
            <i class="el-icon-edit"></i>
            <span slot="title">重命名</span>
          </el-menu-item>
          <el-menu-item index="2" class="menuItem">
            <i class="el-icon-folder-add"></i>
            <span slot="title">新建文件夹</span>
          </el-menu-item>
          <el-menu-item index="3" class="menuItem">
            <i class="el-icon-delete"></i>
            <span slot="title">删除</span>
          </el-menu-item>
        </el-menu>
      </div>
            <detail-win v-if="isShow" @close="closeWin" :node = NODE v-bind="$attrs" v-on="$listeners"></detail-win>
    </div>
</template>

<script>
  import detailWin from ‘./detail-win‘
  import { baseWarn } from ‘src/common/fn‘
 
  export default {
    components: {
      detailWin
    },
    data () {
      return {
        isLoading: false, // 是否加载
        NODE_KEY: ‘recordId‘, // id对应字段
        defaultProps: {// 默认设置
          children: ‘children‘,
          label: ‘menuName‘
        },
        menuVisible: false,
        isShow: false,
        clickNode: ‘‘,
        DATA: null,
        NODE: null,
        objectID: null,
        dragPid: null,
        dragIndex: null,
        newParentId: null,
        oldMenuName: null
      }
    },
    computed: {
      treeData () {
        return this.$sysStore.fileTreeData
      },
      addNode () {
        return this.$sysStore.addNode
      },
      draggable () {
        if (!this.$store.state.user.isOuterUser) {
          return true
        } else {
          return false
        }
      }
    },
    watch: {
    },
    created () {
    },
    mounted () {
    },
    methods: {
      // 修改节点
      handleInput (node, data) {
        // 退出编辑状态
        if (node.isEdit) {
          this.$set(node, ‘isEdit‘, false)
        }
        if (this.oldMenuName === data.menuName) {

        } else {
          this.$axios({
            url: ‘........‘,
            method: ‘post‘,
            data: {
              ...
            }
          })
            .then(res => {
              this.$message({ type: ‘success‘, message: ‘重命名成功‘ })
            })
            .catch(function (error) {
              this.$message({ type: ‘error‘, message: ‘重命名失败‘ })
              console.log(error)
            })
        }
      },

      // 重命名
      handleEdit (node, data) {
        // 模板文件夹名称不能重命名
        if (data.isTemplate === 1) {
          this.$message.error(‘该文件夹无法重命名‘)
        } else {
          // 设置编辑状态
          if (!node.isEdit) {
            this.$set(node, ‘isEdit‘, true)
          }

          // 输入框聚焦
          this.$nextTick(() => {
            if (this.$refs[‘slotTreeInput‘ + data.recordId]) {
              this.$refs[‘slotTreeInput‘ + data.recordId].$refs.input.focus()
            }
          })
        }
      },
      // 新增节点
      handleAdd (node, data) {
        // console.log(node,data)
        if (data.fileSum !== 0) {
          this.$message.error(‘此文件夹已存在上传文件，不能新增文件夹！‘)
          return
        }
        this.isShow = true
      },
      // 删除节点
      handleDelete (node, data) {
        if (data.children && data.children.length !== 0) {
          this.$message.error(‘此文件夹内含有其他文件夹，不可删除！‘)
          return
        }
        if (data.fileSum !== 0) {
          this.$message.error(‘此文件夹内含有上传文件，不可删除！‘)
        } else {
          this.$confirm(`是否删除${node.label}？`, ‘提示‘, {
            confirmButtonText: ‘确认‘,
            cancelButtonText: ‘取消‘,
            type: ‘warning‘
          }).then(() => {
            this.deleteProj(node, data)
          }).catch(() => {})
        }
      },
      deleteProj (node, data) {
        this.$axios({
          url: ‘...‘,
          method: ‘post‘,
          data: {
            ...
          }
        })
          .then(res => {
            if (res.success) {
              let _list = node.parent.data.children || node.parent.data// 节点同级数据
              let _index = _list.map((c) => c.recordId).indexOf(data.recordId)
              _list.splice(_index, 1)
              this.$message.success(‘删除成功‘)
              // 使右侧列表消失
              this.$parent.$parent.disabled = true
              // 直接改变vuex中treeData的数值
              let fileTreeData = this.filter(this.treeData, node.data.kid)
              this.$store.dispatch(`${this.wpstore}/setFileTreeData`, fileTreeData)
            } else {
              this.$message.error(‘删除失败，请重试‘)
            }
          })
      },

      /**
       * 删除或者更改treeData中指定kid的子节点
       *
       * @returns arr
       */
      filter (arr, kid) {
        for (var i = 0; i < arr.length; i++) {
          var el = arr[i]
          if (el.kid === kid) {
            arr.splice(i, 1)
          } else {
            if (el.children && el.children.length) {
              this.filter(el.children, kid)
            }
          }
        }
        return arr
      },

      // 点击节点
      handleNodeClick (node) {
        this.menuVisible = false
        this.$store.dispatch(`${this.wpstore}/selectNode`, node)
      },

      // 拖拽开始时记录该节点的pid及其在原来数组中的原始数据
      handleDragStart (node) {
        this.dragPid = node.data.recordPid
        let p = this.$refs.SlotTree.getNode(this.dragPid)
        let _list = p.data.children // 节点同级数据
        let _index = _list.map((c) => c.recordId).indexOf(node.data.recordId)
        this.dragIndex = _index
      },

      // 拖拽成功时触发请求
      handleDrop (draggingNode, dropNode, dropType, e) {
        // debugger
        if (dropNode.data.fileSum !== 0 && dropType === ‘inner‘) {
          baseWarn(‘该文件夹内含有上传文件，拖拽失败‘, null, null, null)
          let _list = dropNode.data.children // 节点同级数据
          let _index = _list.map((c) => c.recordId).indexOf(draggingNode.data.recordId)
          _list.splice(_index, 1)
          // 将节点返回到原来的位置上
          let p = this.$refs.SlotTree.getNode(this.dragPid)
          // console.log(p,‘p‘)
          p.data.children.splice(this.dragIndex, 0, draggingNode.data)
        } else if (dropNode.data.recordPid === ‘root‘) {
          baseWarn(‘无法拖拽为根文件夹‘, null, null, null)
          this.$refs.SlotTree.remove(draggingNode.data.recordId)
          let p = this.$refs.SlotTree.getNode(this.dragPid)
          p.data.children.splice(this.dragIndex, 0, draggingNode.data)
        } else {
          // 算出子节点对于父节点的相对位置
          let _list = dropNode.parent.data.children // 拖拽节点同级数据
          let _index = _list.map((c) => c.recordId).indexOf(draggingNode.data.recordId)
          if (_index === -1) {
            _list = dropNode.childNodes
            _index = _list.map((c) => c.data.recordId).indexOf(draggingNode.data.recordId)
          }
          // 得出目标节点的recordId
          if (dropNode.parent.data.recordId === this.dragPid) {
            // 相同的父节点
            this.newParentId = this.dragPid
          } else {
            this.newParentId = dropNode.parent.data.recordId
          }
          // 发送请求
          this.$axios({
            url: ‘...‘,
            method: ‘post‘,
            data: {
              ...
            }
          })
            .then(res => {
              this.$message({ type: ‘success‘, message: ‘拖拽成功‘ })
            })
            .catch(function (error) {
              console.log(error)
            })
        }
      },

      // 鼠标右击
      rightClick (event, object, value, element) {
        this.oldMenuName = object.menuName
        if (this.$store.state.user.isOuterUser) {
          this.menuVisible = false
        } else {
          if (this.objectID !== object.recordId) {
            this.objectID = object.recordId
            this.menuVisible = true
            this.DATA = object
            this.NODE = value
          } else {
            this.menuVisible = !this.menuVisible
          }
          // document.addEventListener(‘click‘, (e) => {
          //   this.menuVisible = false
          // })
          this.hiddenMenu()
          let menu = document.querySelector(‘.rightClickMenu‘)
          /* 菜单定位基于鼠标点击位置 */
          let height = document.documentElement.clientHeight || document.body.clientHeight
          if (event.clientY + 168 > height) {
            menu.style.left = event.clientX - 5 + ‘px‘
            menu.style.top = event.clientY - 10 - 168 + ‘px‘
          } else {
            menu.style.left = event.clientX + 10 + ‘px‘
            menu.style.top = event.clientY + 5 + ‘px‘
          }
          menu.style.position = ‘fixed‘
        }
      },
      handleRightSelect (key) {
        this.menuVisible = false
        if (key == 1) {
          this.handleEdit(this.NODE, this.DATA)
        } else if (key == 2) {
          this.handleAdd(this.NODE, this.DATA)
        } else if (key == 3) {
          this.handleDelete(this.NODE, this.DATA)
        }
      },
      hiddenMenu () {
        document.addEventListener(‘click‘, this.hide, true)
        document.removeEventListener(‘click‘, this.hide)
      },

      hide() {
        this.menuVisible = false
      },
      closeWin (val) {
        this.isShow = val
      }
    }
  }
</script>

<style lang="scss" scoped>
.el-menu {
    border: solid 1px #e6e6e6
}

.comp-tree {
    margin-top: 1em;
    overflow-y: hidden;
  overflow-x: scroll;
}

 .el-tree {
     min-width: 100%;
     display:inline-block !important;
 }

.rightClickMenu {
    z-index: 999
}

</style>