useWindowFocus

使用 window.onfocus 和 window.onblur 事件反应式性地跟踪窗口焦点。

¥Reactively track window focus with window.onfocus and window.onblur events.

示例

源代码演练场

💡 Click somewhere outside of the document to unfocus.

用法

¥Usage

<script setup lang="ts">
import { useWindowFocus } from '@vueuse/core'

const focused = useWindowFocus()
</script>

<template>
  <div>{{ focused }}</div>
</template>

组件用法

¥Component Usage

<template>
  <UseWindowFocus v-slot="{ focused }">
    Document Focus: {{ focused }}
  </UseWindowFocus>
</template>