You can activate full screen mode using vanilla JavaScript without jQuery.
<!DOCTYPE html>
<html>
<head>
<title>Full Screen Test</title>
</head>
<body id="body">
<h1>test</h1>
<script>
var elem = document.getElementById("body");
elem.onclick = function() {
req = elem.requestFullScreen || elem.webkitRequestFullScreen || elem.mozRequestFullScreen;
req.call(elem);
}
</script>
</body>
</html>
One thing that is important to note, you can only request full screen mode when a user performs an action (e.g. a click). You can't request full screen mode without a user action[1] (e.g. on page load).
Here is a cross browser function to toggle full screen mode (as obtained from the MDN):
function toggleFullScreen() {
if (!document.fullscreenElement && // alternative standard method
!document.mozFullScreenElement && !document.webkitFullscreenElement && !document.msFullscreenElement ) { // current working methods
if (document.documentElement.requestFullscreen) {
document.documentElement.requestFullscreen();
} else if (document.documentElement.msRequestFullscreen) {
document.documentElement.msRequestFullscreen();
} else if (document.documentElement.mozRequestFullScreen) {
document.documentElement.mozRequestFullScreen();
} else if (document.documentElement.webkitRequestFullscreen) {
document.documentElement.webkitRequestFullscreen(Element.ALLOW_KEYBOARD_INPUT);
}
} else {
if (document.exitFullscreen) {
document.exitFullscreen();
} else if (document.msExitFullscreen) {
document.msExitFullscreen();
} else if (document.mozCancelFullScreen) {
document.mozCancelFullScreen();
} else if (document.webkitExitFullscreen) {
document.webkitExitFullscreen();
}
}
}
For more information, check out the MDN page on full screen APIs.
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