# 8.5 指向性气泡（popover）

指向性气泡用于针对页面具体位置的内容进行说明/提示。

# 需求场景

指向性气泡

# 实例

# 基础用法

<template>
  <div class="wrapper">
    <dof-minibar title="指向性气泡"></dof-minibar>
    <scroller class="scroller">
      <dof-button
        ref="btn"
        class="m-b-60"
        text="top"
        size="small"
        @dofButtonClicked="$refs['popover'].dofPopoverShow()"
      ></dof-button>
      <dof-button
        ref="btn2"
        class="m-b-60"
        text="bottom"
        size="small"
        @dofButtonClicked="$refs['popover2'].dofPopoverShow()"
      ></dof-button>
      <dof-button
        ref="btn3"
        class="m-b-60"
        text="left"
        size="small"
        @dofButtonClicked="$refs['popover3'].dofPopoverShow()"
      ></dof-button>
      <dof-button
        ref="btn4"
        class="m-b-60"
        text="right"
        size="small"
        @dofButtonClicked="$refs['popover4'].dofPopoverShow()"
      ></dof-button>
    </scroller>
    <dof-popover2
      ref="popover"
      :elPos="elPos1"
      :arrowPosition="{ x: 60, pos: 'top' }"
      :textContent="textContent1"
      :coverColor="'rgba(0, 0, 0, 0)'"
      :innerBgColor="'#E3EBF9'"
      :isShowClose="true"
      @clickedCloseBtn="$refs['popover'].hideAction()"
    ></dof-popover2>
    <dof-popover2
      ref="popover2"
      :elPos="elPos2"
      :arrowPosition="{ x: 60, pos: 'bottom' }"
      :textContent="textContent1"
      :coverColor="'rgba(0, 0, 0, 0)'"
      :innerBgColor="'#E6f3F8'"
      :isShowClose="true"
      @clickedCloseBtn="$refs['popover2'].hideAction()"
    ></dof-popover2>
    <dof-popover2
      ref="popover3"
      :elPos="elPos3"
      :arrowPosition="{ y: 35, pos: 'left' }"
      :textContent="textContent1"
      :coverColor="'rgba(0, 0, 0, 0)'"
      :innerBgColor="'#E3F3F1'"
      :isShowClose="true"
      :width="240"
      @clickedCloseBtn="$refs['popover3'].hideAction()"
    ></dof-popover2>
    <dof-popover2
      ref="popover4"
      :elPos="elPos4"
      :arrowPosition="{ y: 35, pos: 'right' }"
      :textContent="textContent1"
      :coverColor="'rgba(0, 0, 0, 0)'"
      :innerBgColor="'#F8F0E4'"
      :isShowClose="true"
      :width="240"
      @clickedCloseBtn="$refs['popover4'].hideAction()"
    ></dof-popover2>
  </div>
</template>

<style scoped>
.wrapper {
  background-color: #f9f9f9;
}
.scroller {
  padding: 102px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.m-b-60 {
  margin-bottom: 60px;
}
</style>

<script>
import { DofMinibar, DofButton, DofPopover2 } from 'dolphin-weex-ui'

export default {
  components: { DofMinibar, DofButton, DofPopover2 },
  data: () => ({
    textContent1: '向左滑动拨档,即可切换冷风',
    elPos1: {},
    elPos2: {},
    elPos3: {},
    elPos4: {}
  }),
  created() {},
  mounted() {
    this.elPos1 = { el: this.$refs['btn'], offsetX: 0, offsetY: 10 }
    this.elPos2 = { el: this.$refs['btn2'], offsetX: 0, offsetY: 0 }
    this.elPos3 = { el: this.$refs['btn3'], offsetX: 0, offsetY: 0 }
    this.elPos4 = { el: this.$refs['btn4'], offsetX: 0, offsetY: 0 }
  },
  methods: {}
}
</script>

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# Attributes

Prop	Type	Required	Default	Description
`elPos`	`Object`	`Y`	`null`	{ el: 指向性气泡目标元素， offsetX: x轴偏移量， offsetY: y轴偏移量 }
`arrowPosition`	`Object`	`Y`	`{ pos: 'top', x: 0, y: 0 }`	{ pos: 箭头位于气泡的位置， x: 相对于气泡x轴位置， y: 相对于气泡y轴位置 }
`width`	`Number`	`N`	`0`	指向性气泡宽度
`isShowClose`	`Boolean`	`N`	`false`	是否展示关闭图标
`isClickCoverHide`	`Boolean`	`N`	`true`	点击页面空白区是否关闭气泡
`innerBgColor`	`String`	`N`	``	气泡背景颜色
`textContent`	`String`	`N`	``	气泡文字内容
`hasAnimation`	`Boolean`	`N`	`true`	是否展示动画
`coverColor`	`String`	`N`	`rgba(0, 0, 0, 0.1)`	空白处背景颜色

# Events

事件名	说明	回调参数
`dofPopoverCoverClicked`	点击空白处回调	``
`clickedCloseBtn`	点击关闭图标	``