用html5 js实现点击一个按钮达到浏览器全屏效果_javascript技巧

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/