用html5 js实现浏览器全屏

项目中需要将后台浏览器的窗口全屏，也就是我们点击一个按钮要实现按F11全屏的效果。 在HTML5中,W3C制定了关于全屏的API，就可以实现全屏幕的效果，也可以让页面中的图片，视频等全屏目前只有google chrome 15 +, safri5.1+,firfox10+,IE11支持

全屏

var docElm = document.documentElement;
//W3C  
if (docElm.requestFullscreen) {  
    docElm.requestFullscreen();  
}
//FireFox  
else if (docElm.mozRequestFullScreen) {  
    docElm.mozRequestFullScreen();  
}
//Chrome等  
else if (docElm.webkitRequestFullScreen) {  
    docElm.webkitRequestFullScreen();  
}
//IE11
else if (elem.msRequestFullscreen) {
  elem.msRequestFullscreen();
}

退出全屏

if (document.exitFullscreen) {  
    document.exitFullscreen();  
}  
else if (document.mozCancelFullScreen) {  
    document.mozCancelFullScreen();  
}  
else if (document.webkitCancelFullScreen) {  
    document.webkitCancelFullScreen();  
}
else if (document.msExitFullscreen) {
      document.msExitFullscreen();
} 

事件监听

document.addEventListener("fullscreenchange", function () {  
    fullscreenState.innerHTML = (document.fullscreen)? "" : "not ";}, false);  
  
document.addEventListener("mozfullscreenchange", function () {  
    fullscreenState.innerHTML = (document.mozFullScreen)? "" : "not ";}, false);  
  
document.addEventListener("webkitfullscreenchange", function () {  
    fullscreenState.innerHTML = (document.webkitIsFullScreen)? "" : "not ";}, false);
document.addEventListener("msfullscreenchange", function () {
    fullscreenState.innerHTML = (document.msFullscreenElement)? "" : "not ";}, false);

全屏样式设置

在浏览器全屏的使用我们还可以进行样式设置

html:-moz-full-screen {  
    background: red;  
}  
  
html:-webkit-full-screen {  
    background: red;  
}  
  
html:fullscreen {  
    background: red;  
}

附录

1 一个在线的Demo

    http://robnyman.github.io/fullscreen/

2   HTML5全屏API之网络钓鱼

      http://www.36ria.com/5807

3   jquery封装的全屏插件

     http://johndyer.name/native-fullscreen-javascript-api-plus-jquery-plugin/

4  更加详细的全屏API介绍

    4.1 https://developer.mozilla.org/en-US/docs/Web/Guide/API/DOM/Using_full_screen_mode

    4.2  https://dvcs.w3.org/hg/fullscreen/raw-file/tip/Overview.html

5  HTML5全屏API在FireFox/Chrome中的显示差异

   http://www.zhangxinxu.com/wordpress/2012/10/html5-full-screen-api-firefox-chrome-difference/