screenfull.js

Simple wrapper for cross-browser usage of the JavaScript Fullscreen API, which lets you bring the page or any element into fullscreen. Smoothens out the browser implementation differences, so you don't have too.

Demo

Check out my other projects

Install

Only 0.7 KB gzipped (1.6 KB minified)

Manually

Download the production version or the development version.

Bower

bower install --save screenfull

npm

npm install --save screenfull

cdnjs

//cdnjs.cloudflare.com/ajax/libs/screenfull.js/1.0.4/screenfull.min.js

Why?

Screenfull

if (screenfull.enabled) {
	screenfull.request();
}

Vanilla JavaScript

document.fullscreenEnabled = document.fullscreenEnabled || document.mozFullScreenEnabled || document.documentElement.webkitRequestFullScreen;

function requestFullscreen(element) {
	if (element.requestFullscreen) {
		element.requestFullscreen();
	} else if (element.mozRequestFullScreen) {
		element.mozRequestFullScreen();
	} else if (element.webkitRequestFullScreen) {
		element.webkitRequestFullScreen(Element.ALLOW_KEYBOARD_INPUT);
	}
}

if (document.fullscreenEnabled) {
	requestFullscreen(document.documentElement);
}

// Actually it's more if you want it to work in Safari, but let's not go there...

Support

Supported browsers

Safari 5.1 doesn't support use of the keyboard in fullscreen.

Documentation

Examples

Fullscreen the page

document.getElementById('button').addEventListener('click', function () {
	if (screenfull.enabled) {
		screenfull.request();
	} else {
		// Ignore or do something else
	}
});

Fullscreen an element

var elem = document.getElementById('target');
document.getElementById('button').addEventListener('click', function () {
	if (screenfull.enabled) {
		screenfull.request(elem);
	}
});

Fullscreen an element with jQuery

var target = $('#target')[0]; // Get DOM element from jQuery collection
$('#button').click(function () {
	if (screenfull.enabled) {
		screenfull.request(target);
	}
});

Toggle fullscreen on a image with jQuery

$('img').click(function () {
	if (screenfull.enabled) {
		// We can use `this` since we want the clicked element
		screenfull.toggle(this);
	}
});

Detect fullscreen change

if (screenfull.enabled) {
	document.addEventListener(screenfull.raw.fullscreenchange, function () {
		console.log('Am I fullscreen? ' + (screenfull.isFullscreen ? 'Yes' : 'No'));
	});
}

See the demo for more examples, and view the source.

You can check for fullscreen support by checking the truthy/falsy value of screenfull as done in the example above.

Methods

.request()

Make an element fullscreen.

Accepts a DOM element. Default is <html>. If called with another element than the currently active, it will switch to that if it's a decendant.

If your page is inside an <iframe> you will need to add a allowfullscreen attribute (+ webkitallowfullscreen and mozallowfullscreen).

Keep in mind that the browser will only enter fullscreen when initiated by user events like click, touch, key.

.exit()

Brings you out of fullscreen.

.toggle()

Requests fullscreen if not active, otherwise exits.

.onchange()

~~Override this method to get notified about fullscreen changes.~~

You should rather use a real event listener:

document.addEventListener(screenfull.raw.fullscreenchange, function () {});

.onerror()

~~Override this method to get notified about fullscreen errors.~~

You should rather use a real event listener:

document.addEventListener(screenfull.raw.fullscreenerror, function () {});

Properties

.isFullscreen

Returns a boolean whether fullscreen is active.

.element

Returns the element currently in fullscreen, otherwise null.

.enabled

Returns a boolean whether you are allowed to enter fullscreen. If your page is inside an <iframe> you will need to add a allowfullscreen attribute (+ webkitallowfullscreen and mozallowfullscreen).

.raw

Exposes the raw properties (prefixed if needed) used internally: requestFullscreen, exitFullscreen, fullscreenElement, fullscreenEnabled, fullscreenchange, fullscreenerror

$(document).on(screenfull.raw.fullscreenchange, function () {
	console.log('Fullscreen change');
});

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screenfull.js's Introduction