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HTML5 video播放器全屏(fullScreen)方法實例

  發(fā)布時間：2015-04-24 15:41:14   作者：佚名   我要評論
這篇文章主要介紹了HTML5 video播放器全屏(fullScreen)方法實例,本文直接給出一個完整代碼實例,需要的朋友可以參考下

首先來說，這個標(biāo)題具有誤導(dǎo)性，但這樣設(shè)置改標(biāo)題也是主要因為video使用的比較多

在html5中，全屏方法可以適用于很多html 元素，不僅僅是video

復(fù)制代碼
代碼如下:

<!doctype html>
<html>
<head>
<meta charset="utf-8" />
<title>全屏問題</title>
<meta http-equiv="content-type" content="text/html; charset=utf-8"/>
<meta http-equiv="imagetoolbar" content="no"/>
<meta name="apple-mobile-web-app-capable" content="yes"/>
<meta http-equiv="X-UA-Compatible" content="IE=Edge">
<style type="text/css">
*{
padding: 0px;
margin: 0px;
}

body div.videobox{
width: 400px;
height: 320px;
margin: 100px auto;
background-color:#000;
}

body div.videobox video.video
{
width: 100%;
height: 100%;
}

:-webkit-full-screen {

}

:-moz-full-screen {

}

:-ms-fullscreen {

}

:-o-fullscreen {

}

:full-screen {

}

:fullscreen {

}

:-webkit-full-screen video {
width: 100%;
height: 100%;
}
:-moz-full-screen video{
width: 100%;
height: 100%;
}
</style>
</head>
<body>


<div id="videobox">

<video controls="controls" preload="preload" id="video" poster="poster.jpg">
<source src="./movie.ogg" type="video/ogg" />
<source src="./movie.mp4" type="video/mp4" />
<source src="./movie.webm" type="video/webm" />
<object data="./movie.mp4" width="100%" height="100%">
<embed width="100%" height="100%" src="./movie.swf" />
</object>

</video>
<button id="fullScreenBtn">全屏</button>
</div>


<script type="text/javascript">

//反射調(diào)用
var invokeFieldOrMethod = function(element, method)
{
var usablePrefixMethod;
["webkit", "moz", "ms", "o", ""].forEach(function(prefix) {
if (usablePrefixMethod) return;
if (prefix === "") {
// 無前綴，方法首字母小寫
method = method.slice(0,1).toLowerCase() + method.slice(1);
}
var typePrefixMethod = typeof element[prefix + method];
if (typePrefixMethod + "" !== "undefined") {
if (typePrefixMethod === "function") {
usablePrefixMethod = element[prefix + method]();
} else {
usablePrefixMethod = element[prefix + method];
}
}
});

return usablePrefixMethod;
};

//進入全屏
function launchFullscreen(element)
{
//此方法不可以在異步任務(wù)中執(zhí)行，否則火狐無法全屏
if(element.requestFullscreen) {
element.requestFullscreen();
} else if(element.mozRequestFullScreen) {
element.mozRequestFullScreen();
} else if(element.msRequestFullscreen){
element.msRequestFullscreen();
} else if(element.oRequestFullscreen){
element.oRequestFullscreen();
}
else if(element.webkitRequestFullscreen)
{
element.webkitRequestFullScreen();
}else{

var docHtml = document.documentElement;
var docBody = document.body;
var videobox = document.getElementById('videobox');
var cssText = 'width:100%;height:100%;overflow:hidden;';
docHtml.style.cssText = cssText;
docBody.style.cssText = cssText;
videobox.style.cssText = cssText+';'+'margin:0px;padding:0px;';
document.IsFullScreen = true;

}
}
//退出全屏
function exitFullscreen()
{
if (document.exitFullscreen) {
document.exitFullscreen();
} else if (document.msExitFullscreen) {
document.msExitFullscreen();
} else if (document.mozCancelFullScreen) {
document.mozCancelFullScreen();
} else if(document.oRequestFullscreen){
document.oCancelFullScreen();
}else if (document.webkitExitFullscreen){
document.webkitExitFullscreen();
}else{
var docHtml = document.documentElement;
var docBody = document.body;
var videobox = document.getElementById('videobox');
docHtml.style.cssText = "";
docBody.style.cssText = "";
videobox.style.cssText = "";
document.IsFullScreen = false;
}
}
document.getElementById('fullScreenBtn').addEventListener('click',function(){
launchFullscreen(document.getElementById('video'));
window.setTimeout(function exit(){
//檢查瀏覽器是否處於全屏
if(invokeFieldOrMethod(document,'FullScreen') || invokeFieldOrMethod(document,'IsFullScreen') || document.IsFullScreen)
{
exitFullscreen();
}
},5*1000);
},false);

</script>
</body>

</html>

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