HTML5 full-screen全屏API

代码

.full {
text-align: center;
cursor: pointer;
}

.full img {
vertical-align: middle;
}

.full:hover img {
box-shadow: 2px 2px 4px rgba(0,0,0,.45);
}

.full:after {
/* 图片垂直居中显示 */
display: inline-block;
content: '';
width: 0;
height: 100%;
vertical-align: middle;
}

:-webkit-full-screen img    { height: 60%; }
:-moz-full-screen img       { height: 60%; }
:-ms-full-screen img        { height: 60%; }
:-o-full-screen img         { height: 60%; }
:full-screen img            { height: 60%; }

<div class="full" title="点击全屏浏览"><img src="http://image.zhangxinxu.com/image/study/s/s512/mm1.jpg" /></div>

(function() {
var runPrefixMethod = function(element, method) {
var usablePrefixMethod;
["webkit", "moz", "ms", "o", ""].forEach(function(prefix) {
if (usablePrefixMethod) return;
if (prefix === "") {
// 无前缀，方法首字母小写
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;
};

if (typeof window.screenX === "number") {
var eleFull = document.querySelector(".full");
eleFull.addEventListener("click", function() {
if (runPrefixMethod(document, "FullScreen") || runPrefixMethod(document, "IsFullScreen")) {
runPrefixMethod(document, "CancelFullScreen");
this.title = this.title.replace("退出", "");
} else if (runPrefixMethod(this, "RequestFullScreen")) {
this.title = this.title.replace("点击", "点击退出");
}
});
} else {
alert("爷，现在是年轻人的时代，您就暂且休息去吧~~");
}
})();