描述 {#描述}

使用的是点击触发弹出内容，目标是在弹出内容的情况下，上下来回滚动鼠标，弹出内容和点击按钮不分离

通过监听页面滚动来实现功能，当监听到页面有滚动时，通过组件的updatePopper()方法来更新组件的位置

代码 {#代码}

<el-popover 
    ref="popover"
    placement="right"
    width="400"
    trigger="click"
    style="position: relative">
    <el-table :data="gridData">
      <el-table-column width="150" property="date" label="日期"></el-table-column>
      <el-table-column width="100" property="name" label="姓名"></el-table-column>
      <el-table-column width="300" property="address" label="地址"></el-table-column>
    </el-table>
    <el-button slot="reference">click 激活</el-button>
</el-popover>
`<script>
export default {
data() {
return {
gridData: [{
date: '2016-05-02',
name: '王小虎',
address: '上海市普陀区金沙江路 1518 弄'
}, {
date: '2016-05-04',
name: '王小虎',
address: '上海市普陀区金沙江路 1518 弄'
}, {
date: '2016-05-01',
name: '王小虎',
address: '上海市普陀区金沙江路 1518 弄'
}, {
date: '2016-05-03',
name: '王小虎',
address: '上海市普陀区金沙江路 1518 弄'
}]
};
},
mounted() {
window.addEventListener('scroll', this.handleScroll, true)
},
methods: {
handleScroll() {
this.$refs.popover.updatePopper()
}
}
};
</script>
`