VUE-全屏展示

碰到一个需求，需要点击控制把页面中打开的 PDF 文档给全屏展示，撸了以下代码，撸完才发现VUE有插件直接就实现了，下面先是自己撸的

<template>
  <div class="app-container-home">
    <button @click="fullScreenAndExit()">全屏和退出</button>
    <div>PDF文档</div>
  </div>
</template>
<script>
export default {
  name: "index",
  data() {
    return {
      isFullScreen: false
    };
  },
  methods:{
    // 点击事件
    fullScreenAndExit() {
      const el = document.querySelector('.app-container-home')
      this.toggleFullScreen(el)
    },
    /**
     * 切换全屏
     * @param {HTMLElement} element dom元素
     */
    toggleFullScreen (element) {
      if (!this.isFullScreen) {
        this.fullScreen(element)
      } else {
        this.exitFullScreen()
      }
      this.isFullScreen = !this.isFullScreen
    },
    /**
     * 全屏
     * @param {HTMLElement} element dom元素
     */
    fullScreen(element) {
      const requestMethod = element.requestFullScreen
                          || element.webkitRequestFullScreen
                          || element.mozRequestFullScreen
                          || element.msRequestFullScreen

      if (requestMethod) {
        requestMethod.call(element)
      }
      if (typeof window.ActiveXObject !== 'undefined') {
        let wscript = new ActiveXObject('WScript.Shell')
        if (wscript !== null) {
          wscript.SendKeys('{F11}')
        }
      }
    },
    /**
     * 退出全屏
     */
    exitFullScreen () {
      const documentElement = document
      const cfs = documentElement.cancelFullScreen
                || documentElement.webkitCancelFullScreen
                || documentElement.mozCancelFullScreen
                || documentElement.exitFullScreen

      if (cfs) {
        cfs.call(documentElement)
      } else if (typeof window.ActiveXObject !== 'undefined') {
        // for IE，这里和fullScreen相同，模拟按下F11键退出全屏
        const wscript = new ActiveXObject('WScript.Shell')
        if (wscript != null) {
          wscript.SendKeys('{F11}')
        }
      }
    },
  }
};
</script>
<style scoped lang="scss"></style>

VUE 插件实现

安装插件
npm install screenfull@5.0.2 --save
实际使用

<template>
  <div>
    <svg-icon :icon-class="isFullscreen?'exit-fullscreen':'fullscreen'" @click="click" />
  </div>
</template>
<script>
import screenfull from 'screenfull'
export default {
  name: 'Screenfull',
  data() {
    return {
      isFullscreen: false
    }
  },
  mounted() {
    this.init()
  },
  beforeDestroy() {
    this.destroy()
  },
  methods: {
    click() {
      if (!screenfull.isEnabled) {
        this.$message({ message: '你的浏览器不支持全屏', type: 'warning' })
        return false
      }
      screenfull.toggle()
    },
    change() {
      this.isFullscreen = screenfull.isFullscreen
    },
    init() {
      if (screenfull.isEnabled) {
        screenfull.on('change', this.change)
      }
    },
    destroy() {
      if (screenfull.isEnabled) {
        screenfull.off('change', this.change)
      }
    }
  }
}
</script>
<style scoped>
.screenfull-svg {
  display: inline-block;
  cursor: pointer;
  fill: #5a5e66;;
  width: 20px;
  height: 20px;
  vertical-align: 10px;
}
</style>