How to exit fullscreen onclick using Javascript?

Question

Not sure if the following code snip will work embedded on SO, as it didn\'t work when pasting it, however it does work stand-alone.

The problem, is I want this to be a t

Answer 1

Figured it out.

Apparently, to enter full screen, you need to use the Element, however to exit fullscreen, you use document.

Here is the complete javascript function to toggle fullscreen that works !!!

function fullscreen() {
    var isInFullScreen = (document.fullscreenElement && document.fullscreenElement !== null) ||
        (document.webkitFullscreenElement && document.webkitFullscreenElement !== null) ||
        (document.mozFullScreenElement && document.mozFullScreenElement !== null) ||
        (document.msFullscreenElement && document.msFullscreenElement !== null);

    var docElm = document.documentElement;
    if (!isInFullScreen) {
        if (docElm.requestFullscreen) {
            docElm.requestFullscreen();
        } else if (docElm.mozRequestFullScreen) {
            docElm.mozRequestFullScreen();
        } else if (docElm.webkitRequestFullScreen) {
            docElm.webkitRequestFullScreen();
        } else if (docElm.msRequestFullscreen) {
            docElm.msRequestFullscreen();
        }
    } else {
        if (document.exitFullscreen) {
            document.exitFullscreen();
        } else if (document.webkitExitFullscreen) {
            document.webkitExitFullscreen();
        } else if (document.mozCancelFullScreen) {
            document.mozCancelFullScreen();
        } else if (document.msExitFullscreen) {
            document.msExitFullscreen();
        }
    }
}

And a simple case on how to use it :

Toggle FullScreen

You need to make sure that this is a short method called when the user does an action on the page. From what the documentation says, is this is a feature that requires a higher access mode, and thus you can not (at this time) automatically force fullscreen on things like when the page has loaded, or async events (unless they are events from a users action like Click), etc.