elementUI实现表格穿梭框

elementUI有一个穿梭框组件，但是这个组件局限性比较大，就是不能实现类似表格的效果，不像antDesign的穿梭框，可以搭配Table组件实现表格穿梭框的效果，所以就花时间用elementUI自己封装了一个（源码在最后面）。

先看效果

使用

组件借鉴了elementUI的transfer，api与方法都与trransfer类似，可以参考elementUI transfer组件。

<template>
  <div>
    <!-- 左右两侧的表格列自定义，需指定插槽名 --&gt;
    <table-transfer
        :data="dataSource"
        v-model="value"
        row-key="id"
        filterable
        :titles="['可选项', '已选项']"
        style="width: 100%;"
        :filter-method="filterMethod"
      &gt;
        <template slot="left-table"&gt;
          <el-table-column label="id" prop="id"&gt;</el-table-column&gt;
          <el-table-column label="名称" prop="name"></el-table-column>
          <el-table-column label="状态" prop="status"></el-table-column>
        </template>
        <template slot="right-table">
          <el-table-column label="id" prop="id"></el-table-column>
          <el-table-column label="名称" prop="name"></el-table-column>
          <el-table-column label="状态" prop="status"></el-table-column>
          <el-table-column label="参与评分" prop="score">
            <template slot-scope="{ row }">
              <el-checkbox v-model="row.score"></el-checkbox>
            </template>
          </el-table-column>
        </template>
      </table-transfer>

    <!-- 两侧的表格列一致，可不用指定插槽名 -->
    <table-transfer
      :data="dataSource"
      v-model="value"
      rowKey="id"
      :titles="['可选项', '已选项']"
    >
      <template>
        <el-table-column type="selection" width="55" :selectable="selectable"></el-table-column>
        <el-table-column label="id" prop="id"></el-table-column>
          <el-table-column label="名称" prop="name"></el-table-column>
          <el-table-column label="状态" prop="status"></el-table-column>
      </template>
    </table-transfer>
  </div>
</template>

import TableTransfer from '@/components/TableTransfer/index.vue'

export default {
  components: {
    TableTransfer
  },
  data() {
    data: [
      { id: 1, name: '测试1', status: '启用', score: true },
      { id: 2, name: '测试2', status: '启用', score: true },
      { id: 3, name: '测试3', status: '启用', score: true },
      { id: 4, name: '测试4', status: '启用', score: true },
      { id: 5, name: '测试5', status: '启用', score: true },
      { id: 6, name: '测试6', status: '启用', score: true }
    ],
    value: []
  },
  methods: {
    filterMethod(keyword, row) {
		return row.name.indexOf(keyword) > -1
	}
  }
}

api详细说明

Attributes

Slot

Methods

Events

源码

index.vue

<template>
  <div class="fs-transfer">
    <transfer-panel
      v-bind="$props"
      ref="leftPanel"
      :data="sourceData"
      :title="titles[0] || ''"
      :default-checked="leftDefaultChecked"
      @checked-change="onSourceCheckedChange"
    >
      <slot v-if="$slots.default" slot="table" />
      <slot v-else name="left-table" slot="table" />
      <slot name="left-footer" slot="footer"></slot>
    </transfer-panel>
    <div class="fs-transfer-option">
      <el-button
        type="primary"
        :disabled="rightChecked.length === 0"
        @click.native="addToLeft"
      >
        <i class="el-icon-arrow-left"></i>
        <span v-if="buttonTexts[0] !== undefined">{{ buttonTexts[0] }}</span>
      </el-button>
      <el-button
        type="primary"
        :disabled="leftChecked.length === 0"
        @click.native="addToRight"
      >
        <span v-if="buttonTexts[1] !== undefined">{{ buttonTexts[1] }}</span>
        <i class="el-icon-arrow-right"></i>
      </el-button>
    </div>
    <transfer-panel
      v-bind="$props"
      ref="rightPanel"
      :data="targetData"
      :title="titles[1] || ''"
      :default-checked="rightDefaultChecked"
      @checked-change="onTargetCheckedChange"
    >
      <slot v-if="$slots.default" slot="table" />
      <slot v-else name="right-table" slot="table" />
      <slot name="right-footer" slot="footer"></slot>
    </transfer-panel>
  </div>
</template>

<script>
import TransferPanel from './transferPanel.vue'

export default {
  name: 'TableTransfer',
  components: {
    TransferPanel,
  },
  props: {
    data: {
      type: Array,
      default() {
        return []
      }
    },
    rowKey: {
      type: String,
      required: true
    },
    value: {
      type: Array,
      default() {
        return []
      }
    },
    buttonTexts: {
      type: Array,
      default() {
        return []
      }
    },
    leftDefaultChecked: {
      type: Array,
      default() {
        return []
      }
    },
    beforeRightButtonClick: Function,
    beforeLeftButtonClick: Function,
    rightDefaultChecked: {
      type: Array,
      default() {
        return []
      }
    },
    filterable: {
      type: Boolean,
      default: false
    },
    filterPlaceholder: {
      type: String,
      default: '请输入搜索内容'
    },
    filterMethod: Function,
    selectable: Function,
    panelStyle: {
      type: Object,
      default() {
        return {}
      }
    },
    targetOrder: {
      type: String,
      default: 'original'
    },
    titles: {
      type: Array,
      default() {
        return []
      }
    },
    format: {
      type: Object,
      default() {
        return {}
      }
    },
    tableProps: Object
  },
  data() {
    return {
      leftChecked: [],
      rightChecked: []
    }
  },
  computed: {
    dataObj() {
      const key = this.rowKey
      return this.data.reduce((o, cur) => (o[cur[key]] = cur) &amp;&amp; o, {})
    },
    sourceData() {
      return this.data.filter(i => !this.value.includes(i[this.rowKey]))
    },
    targetData() {
      if (this.targetOrder === 'original') {
        return this.data.filter(i => this.value.includes(i[this.rowKey]))
      } else {
        return this.value.reduce((arr, cur) => {
          const val = this.dataObj[cur]
          if (val) {
            arr.push(val)
          }
          return arr
        }, [])
      }
    }
  },
  methods: {
    addToLeft() {
      if (this.beforeLeftButtonClick) {
        if (!this.beforeLeftButtonClick()) return
      }
      let currentValue = this.value.slice()
      const key = this.rowKey
      this.rightChecked.forEach(item => {
        const index = currentValue.indexOf(item[key])
        if (index > -1) {
          currentValue.splice(index, 1)
        }
      })
      this.$emit('input', currentValue)
      this.$emit('change', currentValue, 'left', this.rightChecked)
    },
    addToRight() {
      if (this.beforeRightButtonClick) {
        if (!this.beforeRightButtonClick()) return
      }
      let currentValue = this.value.slice()
      const itemsToBeMoved = []
      const key = this.rowKey
      this.data.forEach(item => {
        const itemKey = item[key]
        if (
          this.leftChecked.findIndex(i => i[key] === itemKey) > -1 &amp;&amp;
          this.value.indexOf(itemKey) === -1
        ) {
          itemsToBeMoved.push(itemKey)
        }
      })
      currentValue = this.targetOrder === 'unshift'
        ? itemsToBeMoved.concat(currentValue)
        : currentValue.concat(itemsToBeMoved)
      this.$emit('input', currentValue)
      this.$emit('change', currentValue, 'right', this.leftChecked)
    },
    onSourceCheckedChange(val, movedKeys, checkedRows) {
      this.leftChecked = checkedRows || []
      if (movedKeys === undefined) return
      this.$emit('left-check-change', val, movedKeys, checkedRows)
    },
    onTargetCheckedChange(val, movedKeys, checkedRows) {
      this.rightChecked = checkedRows || []
      if (movedKeys === undefined) return
      this.$emit('right-check-change', val, movedKeys, checkedRows)
    },
    clearQuery(direction) {
      if (direction === 'left') {
        this.$refs.leftPanel.clearQuery()
      } else if (direction === 'right') {
        this.$refs.rightPanel.clearQuery()
      }
    }
  }
}
</script>

<style lang="scss" scoped>
.fs-transfer {
  text-align: left;
  height: 450px;
  display: flex;
  align-items: center;
  width: 850px;

  .fs-transfer-option {
    display: inline-block;
    vertical-align: middle;
    margin: 0 20px;
  }
}
</style>

transferPanel.vue

<template>
  <div class="fs-transfer-panel" :style="panelStyle">
    <div class="fs-transfer-panel_header">
      <el-checkbox
        v-model="allChecked"
        @change="handleAllCheckedChange"
        :indeterminate="isIndeterminate"
      >
        {{ title }}
      </el-checkbox>
      <span>{{ checkedSummary }}</span>
    </div>
    <div class="el-transfer-panel_filter" v-if="filterable">
      <el-input
        class="fs-teansfer-input"
        size="small"
        :placeholder="filterPlaceholder"
        prefix-icon="el-icon-search"
        v-model="keywords"
      />
    </div>
    <div class="fs-transfer-panel_body" ref="panelBody">
      <el-table
        v-bind="tableProps"
        :data="filteredData"
        pagination
        style="min-height: 100%"
        :height="tableHeight"
        @selection-change="selectionChange"
        :empty-text="emptyText"
        ref="table"
      >
        <el-table-column type="selection" width="55" :selectable="selectable" fixed="left"></el-table-column>
        <slot name="table" />
      </el-table>
    </div>
    <div class="fs-transfer-panel_footer" v-if="$slots.footer">
      <slot name="footer" />
    </div>
  </div>
</template>

<script>
export default {
  name: 'FsTransferPanel',
  props: {
    data: {
      type: Array,
      default() {
        return []
      }
    },
    title: String,
    defaultChecked: Array,
    filterable: Boolean,
    filterPlaceholder: String,
    filterMethod: Function,
    targetOrder: String,
    format: Object,
    rowKey: String,
    selectable: Function,
    panelStyle: Object,
    tableProps: Object
  },
  data() {
    return {
      allChecked: false,
      checked: [],
      keywords: '',
      checkChangeByUser: true,
      tableHeight: 200
    }
  },
  mounted() {
    this.$nextTick(() => {
      this.tableHeight = parseFloat(getComputedStyle(this.$refs.panelBody).height)
    })
  },
  computed: {
    filteredData() {
      return this.data.filter(item => {
        if (typeof this.filterMethod === 'function') {
          return this.filterMethod(this.keywords, item)
        } else {
          return true
        }
      })
    },
    emptyText() {
      if (this.keywords.length &amp;&amp; this.filteredData.length === 0) {
        return '无匹配数据'
      }
      return '暂无数据'
    },
    isIndeterminate() {
      if (this.checked.length) {
        if (this.checked.length === this.selectableLength) {
          return false
        } else {
          return true
        }
      }
      return false
    },
    selectableLength() {
      if (typeof this.selectable === 'function') {
        return this.filteredData.filter(this.selectable).length
      } else {
        return this.filteredData.length
      }
    },
    checkableData() {
      if (typeof this.selectable === 'function') {
        return this.filteredData.filter(this.selectable)
      } else {
        return this.filteredData
      }
    },
    checkedSummary() {
      const checkedLength = this.checked.length
      const dataLength = this.data.length
      const { noChecked, hasChecked } = this.format
      if (noChecked &amp;&amp; hasChecked) {
        return checkedLength > 0
          ? hasChecked.replace(/${checked}/g, checkedLength).replace(/${total}/g, dataLength)
          : noChecked.replace(/${total}/g, dataLength)
      } else {
        return `${ checkedLength }/${ dataLength }`
      }
    },
  },
  watch: {
    checked(val, oldVal) {
      const valArr = val.map(i => i[this.rowKey])
      const oldValArr = oldVal.map(i => i[this.rowKey])
      if (this.checkChangeByUser) {
        const movedKeys = valArr.concat(oldValArr)
          .filter(v => valArr.indexOf(v) === -1 || oldValArr.indexOf(v) === -1)
        this.$emit('checked-change', valArr, movedKeys, val)
      } else {
        this.$emit('checked-change', valArr)
        this.checkChangeByUser = true
      }
    },
    defaultChecked: {
      immediate: true,
      handler(val, oldVal) {
        if (oldVal &amp;&amp; val.length === oldVal.length &amp;&
          val.every(item => oldVal.indexOf(item) > -1)) return;
        const checked = [];
        this.checkableData.forEach(row => {
          if (val.indexOf(row[this.rowKey]) > -1) {
            checked.push(row)
            this.$nextTick(() => {
              this.$refs.table.toggleRowSelection(row, true)
            })
          }
        })
        this.checkChangeByUser = false
        this.checked = checked
      }
    }
  },
  methods: {
    selectionChange(val) {
      this.checked = val
      if (val.length && !this.isIndeterminate) {
        this.allChecked = true
      } else {
        this.allChecked = false
      }
    },
    handleAllCheckedChange(val) {
      if (this.selectableLength === 0) {
        this.allChecked = false
        return
      }
      if (val) {
        this.$refs.table.toggleAllSelection(true)
      } else {
        this.$refs.table.toggleAllSelection(false)
      }
    },
    clearQuery() {
      this.keywords = ''
    }
  }
}
</script>

<style lang="scss" scoped>
$--border-color: #ebeef5;
.fs-transfer-panel {
  display: inline-flex;
  flex-direction: column;
  vertical-align: middle;
  height: 100%;
  overflow: hidden;
  border: 1px solid $--border-color;
  border-radius: 5px;
  min-width: 200px;
  flex: 1;

  .fs-transfer-panel_header {
    height: 40px;
    line-height: 40px;
    background: #f5f7fa;
    border-bottom: 1px solid $--border-color;
    padding: 0 15px;
    span:nth-last-child(1) {
      float: right;
      font-size: 12px;
      color: #909399;
      margin-left: 10px;
    }
  }

  .el-transfer-panel_filter {
    padding: 10px;
  }

  .fs-transfer-panel_footer {
    padding: 10px;
    border-top: 1px solid $--border-color;
  }

  .fs-transfer-panel_body {
    padding: 0 10px;
    // overflow-y: overlay;
    overflow: hidden;
    flex: 1;
  }
}

::v-deep .el-table::before {
  height: 0;
}

::v-deep .el-input__inner {
  border-radius: 28px;
}

::v-deep .el-table__fixed::before {
  height: 0;
}
</style>

代码007普通

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