js实现点击一个按钮达到浏览器全屏效果

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/