Vue使用screenfull实现全屏效果

npm install --save screenfull

import screenfull from 'screenfull'

// 全屏事件 兼容
clickFullscreen() {
 let element = document.documentElement;
 if (this.isFullscreen) {
  if (document.exitFullscreen) {
  document.exitFullscreen();
  } else if (document.webkitCancelFullScreen) {
  document.webkitCancelFullScreen();
  } else if (document.mozCancelFullScreen) {
  document.mozCancelFullScreen();
  } else if (document.msExitFullscreen) {
  document.msExitFullscreen();
  }
 } else {
  if (element.requestFullscreen) {
  element.requestFullscreen();
  } else if (element.webkitRequestFullScreen) {
  element.webkitRequestFullScreen();
  } else if (element.mozRequestFullScreen) {
  element.mozRequestFullScreen();
  } else if (element.msRequestFullscreen) {
  // IE11
  element.msRequestFullscreen();
  }
 }
 this.isFullscreen= !this.isFullscreen;
}