用html5 js实现浏览器全屏-H5教程

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();
}

复制代码

退出全屏

if (document.exitFullscreen) {
document.exitFullscreen();
}
else if (document.mozCancelFullScreen) {
document.mozCancelFullScreen();
}
else if (document.webkitCancelFullScreen) {
document.webkitCancelFullScreen();
}
else if (document.m**itFullscreen) {
document.m**itFullscreen();
}

复制代码

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);

复制代码

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;
}

复制代码

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