vue 项目全屏插件screenfull使用案例

npm install screenfull --save

npm install screenfull@4.2.0 --save

import screenfull from 'screenfull'

<template>
  <div>
    <ul>
      <li @click="clickFun">{{isFullFlag?'退出全屏':'全屏'}}</li>
      <li @click="clickFun1">{{isFullFlag1?'退出部分全屏':'部分全屏'}}</li>
    </ul>
    <!--需要全屏展示的内容-->
    <div id="content"></div>
  </div>
</template>

<script>
import screenfull from 'screenfull'
export default {
  name: "HelloWorld",
  data() {
    return {
      isFullFlag: false,
      isFullFlag1: false,
    }
  },
  mounted() {
    // 监听页面全屏
    window.addEventListener("fullscreenchange", (e) => {
      console.log(screenfull.isFullscreen)
      this.isFullFlag = screenfull.isFullscreen
    })
  },
  methods: {
    clickFun() {
      this.isFullFlag = !this.isFullFlag
      console.log(screenfull)
      if (!screenfull.enabled) {
        this.$message({
          message: 'Your browser does not work',
          type: 'warning'
        })
        return false
      }
      screenfull.toggle()
    },
    clickFun1() {
      this.isFullFlag1 = !this.isFullFlag1
      const element = document.getElementById('content');//指定全屏区域元素
      if (this.isFullFlag1) {
        // screenfull.request(element);
        element.requestFullscreen()
      } else {
        document.exitFullscreen();
      }
    },
  },
};
</script>

<i class="i_icon el-icon-full-screen" @click="isScreenFull"></i>

import screenfull from 'screenfull'
mounted() {
  this.screenFull();
},
methods: {
  //监听Esc事件；
  screenFull() {
    //监听f11事件
    window.addEventListener("keydown", this.KeyDown, true);
    //这些监听,可以监听到esc按键按下导致的全屏变化,但是监听不到F11的打开全屏的变化,isScreenFull
    document.addEventListener("fullscreenchange", () => {
      this.isFullscreen = !this.isFullscreen;//你要切换得图标使用得属性
    });
    document.addEventListener("mozfullscreenchange", () => {
      this.isFullscreen = !this.isFullscreen;
    });
    document.addEventListener("webkitfullscreenchange", () => {
      this.isFullscreen = !this.isFullscreen;
    });
    document.addEventListener("msfullscreenchange", () => {
      this.isFullscreen = !this.isFullscreen;
    });
  },
  KeyDown(event) {
    if (event.keyCode === 122) {
      event.returnValue = false;
      this.isScreenFull(); //触发全屏的方法
    }
  },
  //全屏方法
  isScreenFull() {
    if (!screenfull.isEnabled) {
      return false;
    }
    // 这个方法会请求全屏，如果当前是全屏则会退出全屏。
    // 无需自己再判断当前屏幕状态
    screenfull.toggle();
  },
}