Tooltip

<template>
  <a-tooltip>
    <template slot='title'>
      prompt text
    </template>
    Tooltip will show when mouse enter.
  </a-tooltip>
</template>

<template>
  <div id="components-a-tooltip-demo-placement">
    <div :style="{ marginLeft: `${buttonWidth}px`, whiteSpace: 'nowrap' }">
      <a-tooltip placement="topLeft" >
        <template slot="title">
          <span>prompt text</span>
        </template>
        <a-button>TL</a-button>
      </a-tooltip>
      <a-tooltip placement="top" >
        <template slot="title">
          <span>prompt text</span>
        </template>
        <a-button>Top</a-button>
      </a-tooltip>
      <a-tooltip placement="topRight" >
        <template slot="title">
          <span>prompt text</span>
        </template>
        <a-button>TR</a-button>
      </a-tooltip>
    </div>
    <div :style="{ width: `${buttonWidth}px`, float: 'left' }">
      <a-tooltip placement="leftTop" >
        <template slot="title">
          <span>prompt text</span>
        </template>
        <a-button>LT</a-button>
      </a-tooltip>
      <a-tooltip placement="left" >
        <template slot="title">
          <span>prompt text</span>
        </template>
        <a-button>Left</a-button>
      </a-tooltip>
      <a-tooltip placement="leftBottom" >
        <template slot="title">
          <span>prompt text</span>
        </template>
        <a-button>LB</a-button>
      </a-tooltip>
    </div>
    <div :style="{ width: `${buttonWidth}px`, marginLeft: `${buttonWidth * 4 + 24 }px`}">
      <a-tooltip placement="rightTop" >
        <template slot="title">
          <span>prompt text</span>
        </template>
        <a-button>RT</a-button>
      </a-tooltip>
      <a-tooltip placement="right" >
        <template slot="title">
          <span>prompt text</span>
        </template>
        <a-button>Right</a-button>
      </a-tooltip>
      <a-tooltip placement="rightBottom" >
        <template slot="title">
          <span>prompt text</span>
        </template>
        <a-button>RB</a-button>
      </a-tooltip>
    </div>
    <div :style="{ marginLeft: `${buttonWidth}px`, clear: 'both', whiteSpace: 'nowrap' }">
      <a-tooltip placement="bottomLeft" >
        <template slot="title">
          <span>prompt text</span>
        </template>
        <a-button>BL</a-button>
      </a-tooltip>
      <a-tooltip placement="bottom" >
        <template slot="title">
            <span>prompt text</span>
        </template>
        <a-button>Bottom</a-button>
      </a-tooltip>
      <a-tooltip placement="bottomRight" >
        <template slot="title">
          <span>prompt text</span>
        </template>
        <a-button>BR</a-button>
      </a-tooltip>
    </div>
  </div>
</template>
<script>

export default {
  data () {
    return {
      buttonWidth: 70,
    }
  },
}
</script>
<style scoped>
#components-a-tooltip-demo-placement .ant-btn {
  width: 70px;
  text-align: center;
  padding: 0;
  margin-right: 8px;
  margin-bottom: 8px;
}
</style>

<template>
  <div>
    <a-tooltip placement="topLeft" title="Prompt Text">
      <a-button>Align edge / 边缘对齐</a-button>
    </a-tooltip>
    <a-tooltip placement="topLeft" title="Prompt Text" arrowPointAtCenter>
      <a-button>Arrow points to center / 箭头指向中心</a-button>
    </a-tooltip>
  </div>
</template>

<template>
  <div :style="wrapStyles">
    <a-tooltip placement="left" title="Prompt Text" :getPopupContainer="getPopupContainer">
      <a-button>Adjust automatically / 自动调整</a-button>
    </a-tooltip>
    <br />
    <a-tooltip style="marginTop: 10px" placement="left" title="Prompt Text" :getPopupContainer="getPopupContainer" :autoAdjustOverflow="false">
      <a-button>Ingore / 不处理</a-button>
    </a-tooltip>
  </div>
</template>
<script>
const wrapStyles = {
  overflow: 'hidden',
  position: 'relative',
  padding: '24px',
  border: '1px solid #e9e9e9',
}
export default {
  data () {
    return {
      wrapStyles,
    }
  },
  methods: {
    getPopupContainer (trigger) {
      return trigger.parentElement
    },
  },
}
</script>