最近遇到需求要求给 element 的 tabs 组件实现拖拽,通过查资料找到 Sortable 插件
此插件既能支持拖拽 tabs,也能支持拖拽 table,具体使用代码如下:

1.table 拖拽

<script>
import { fetchList } from '@/api/article'
import Sortable from 'sortablejs'

export default {
  name: 'DragTable',
  filters: {
    statusFilter(status) {
      const statusMap = {
        published: 'success',
        draft: 'info',
        deleted: 'danger'
      }
      return statusMap[status]
    }
  },
  data() {
    return {
      list: null,
      total: null,
      listLoading: true,
      listQuery: {
        page: 1,
        limit: 10
      },
      sortable: null,
      oldList: [],
      newList: []
    }
  },
  created() {
    this.getList()
  },
  methods: {
    async getList() {
      this.listLoading = true
      const { data } = await fetchList(this.listQuery)
      this.list = data.items
      this.total = data.total
      this.listLoading = false
      this.oldList = this.list.map(v => v.id)
      this.newList = this.oldList.slice()
      this.$nextTick(() => {
        this.setSort()
      })
    },
    setSort() {
      const el = this.$refs.dragTable.$el.querySelectorAll('.el-table__body-wrapper > table > tbody')[0]
      this.sortable = Sortable.create(el, {
        ghostClass: 'sortable-ghost', // Class name for the drop placeholder,
        setData: function(dataTransfer) {
          // to avoid Firefox bug
          // Detail see : https://github.com/RubaXa/Sortable/issues/1012
          dataTransfer.setData('Text', '')
        },
        onEnd: evt => {
          const targetRow = this.list.splice(evt.oldIndex, 1)[0]
          this.list.splice(evt.newIndex, 0, targetRow)

          // for show the changes, you can delete in you code
          const tempIndex = this.newList.splice(evt.oldIndex, 1)[0]
          this.newList.splice(evt.newIndex, 0, tempIndex)
        }
      })
    }
  }
}
</script>

<style>
.sortable-ghost{
  opacity: .8;
  color: #fff!important;
  background: #42b983!important;
}
</style>

2.tabs 拖拽

import Sortable from "sortablejs";

  mounted() {
    this.getList()
  }

  async getList() {
    this.listLoading = true
    const { data } = await fetchList(this.listQuery)
    this.list = data.items
    this.total = data.total
    this.listLoading = false
    this.oldList = this.list.map(v => v.id)
    this.newList = this.oldList.slice()
    this.$nextTick(() => {
      this.setSort()
    })
  }

 setSort() {
    const el = document.querySelector(".el-tabs__nav");
    const that = this;
    Sortable.create(el, {
      onEnd: (evt) => {
        console.log("change: ", evt.oldIndex, evt.newIndex);
        const tempIndex = that.terminals.splice(evt.oldIndex, 1)[0];
        that.terminals.splice(evt.newIndex, 0, tempIndex);
      },
    });
  }