video全屏参考：https://www.thecssninja.com/javascript/fullscreen
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>JS全屏</title>
<style>
html:-moz-full-screen {background: red}
html:-webkit-full-screen {background: red}
html:fullscreen {background: red}
</style>
</head> <body>
<a href="#" onClick="fullscreen()">fullscreen</a> | <a href="#" onClick="exitFullscreen()">exitFullscreen</a>
<p id="state">no</p>
<script>
// 全屏
function fullscreen() {
var docElm = document.documentElement;
if (docElm.requestFullscreen) {
docElm.requestFullscreen();
} else if (docElm.mozRequestFullScreen) {
docElm.mozRequestFullScreen();
} else if (docElm.webkitRequestFullScreen) {
docElm.webkitRequestFullScreen();
} else if (docElm.msRequestFullscreen) {
docElm.msRequestFullscreen();
}
} // 退出全屏
function exitFullscreen() {
if (document.exitFullscreen) {
document.exitFullscreen();
} else if (document.mozCancelFullScreen) {
document.mozCancelFullScreen();
} else if (document.webkitCancelFullScreen) {
document.webkitCancelFullScreen();
} else if (document.msExitFullscreen) {
document.msExitFullscreen();
}
} // 监听是否全屏
window.onload = function() {
var elem = document.getElementById('state');
document.addEventListener('fullscreenchange',
function() {
elem.innerText = document.fullscreen ? 'yes': 'no';
},
false);
document.addEventListener('mozfullscreenchange',
function() {
elem.innerText = document.mozFullScreen ? 'yes': 'no';
},
false);
document.addEventListener('webkitfullscreenchange',
function() {
elem.innerText = document.webkitIsFullScreen ? 'yes': 'no';
},
false);
document.addEventListener('msfullscreenchange',
function() {
elem.innerText = document.msFullscreenElement ? 'yes': 'no';
},
false);
}
</script>
</body>
</html>