VUE如何通过双击实现复制表格中内容？

<template>
 <el-table
 :data="tableData"
 height="250"
 border
 >
 <el-table-column
 prop="date"
 label="日期"
 width="180">
 </el-table-column>
 <el-table-column
 prop="name"
 label="姓名"
 width="180">
 <template slot-scope="scope">
 <span @dblclick="copyVale(scope.row.name)">
  {{scope.row.name}}
 </span>
 </template>
 </el-table-column>
 <el-table-column
 prop="address"
 label="地址">
 </el-table-column>
 </el-table>
</template>

<script>
 export default {
 data() {
 return {
 tableData: [{
  date: '2016-05-03',
  name: '张三',
  address: '上海市普陀区金沙江路 1511 弄'
 }, {
  date: '2016-05-02',
  name: '李四',
  address: '上海市普陀区金沙江路 1512 弄'
 }, {
  date: '2016-05-04',
  name: '王五',
  address: '上海市普陀区金沙江路 1513 弄'
 }]
 }
 },
 methods: {
 copyVale(v) {
 this.$message({message: '复制成功，内容为：‘' + v + ''', type:'success'})

 var inputEle = document.createElement("input");
 inputEle.style.display = "none"
 inputEle.value = v
 inputEle.select()
 document.execCommand("Copy")
 inputEle.remove()
 }
 }
 }
</script>