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| /*global Element */
| (function (window, document) {
| 'use strict';
|
| var keyboardAllowed = typeof Element !== 'undefined' && 'ALLOW_KEYBOARD_INPUT' in Element, // IE6 throws without typeof check
|
| fn = (function () {
| var val, valLength;
| var fnMap = [
| [
| 'requestFullscreen',
| 'exitFullscreen',
| 'fullscreenElement',
| 'fullscreenEnabled',
| 'fullscreenchange',
| 'fullscreenerror'
| ],
| // new WebKit
| [
| 'webkitRequestFullscreen',
| 'webkitExitFullscreen',
| 'webkitFullscreenElement',
| 'webkitFullscreenEnabled',
| 'webkitfullscreenchange',
| 'webkitfullscreenerror'
|
| ],
| // old WebKit (Safari 5.1)
| [
| 'webkitRequestFullScreen',
| 'webkitCancelFullScreen',
| 'webkitCurrentFullScreenElement',
| 'webkitCancelFullScreen',
| 'webkitfullscreenchange',
| 'webkitfullscreenerror'
|
| ],
| [
| 'mozRequestFullScreen',
| 'mozCancelFullScreen',
| 'mozFullScreenElement',
| 'mozFullScreenEnabled',
| 'mozfullscreenchange',
| 'mozfullscreenerror'
| ],
| [
| 'msRequestFullscreen',
| 'msExitFullscreen',
| 'msFullscreenElement',
| 'msFullscreenEnabled',
| 'MSFullscreenchange',
| 'MSFullscreenerror'
| ]
| ];
| var i = 0;
| var l = fnMap.length;
| var ret = {};
|
| for (; i < l; i++) {
| val = fnMap[i];
| if (val && val[1] in document) {
| for (i = 0, valLength = val.length; i < valLength; i++) {
| ret[fnMap[0][i]] = val[i];
| }
| return ret;
| }
| }
| return false;
| })(),
|
| screenfull = {
| request: function (elem) {
| var request = fn.requestFullscreen;
|
| elem = elem || document.documentElement;
|
| // Work around Safari 5.1 bug: reports support for
| // keyboard in fullscreen even though it doesn't.
| // Browser sniffing, since the alternative with
| // setTimeout is even worse.
| if (/5\.1[\.\d]* Safari/.test(navigator.userAgent)) {
| elem[request]();
| } else {
| elem[request](keyboardAllowed && Element.ALLOW_KEYBOARD_INPUT);
| }
| },
| exit: function () {
| document[fn.exitFullscreen]();
| },
| toggle: function (elem) {
| if (this.isFullscreen) {
| this.exit();
| } else {
| this.request(elem);
| }
| },
| onchange: function () {},
| onerror: function () {},
| raw: fn
| };
|
| if (!fn) {
| window.screenfull = false;
| return;
| }
|
| Object.defineProperties(screenfull, {
| isFullscreen: {
| get: function () {
| return !!document[fn.fullscreenElement];
| }
| },
| element: {
| enumerable: true,
| get: function () {
| return document[fn.fullscreenElement];
| }
| },
| enabled: {
| enumerable: true,
| get: function () {
| // Coerce to boolean in case of old WebKit
| return !!document[fn.fullscreenEnabled];
| }
| }
| });
|
| document.addEventListener(fn.fullscreenchange, function (e) {
| screenfull.onchange.call(screenfull, e);
| });
|
| document.addEventListener(fn.fullscreenerror, function (e) {
| screenfull.onerror.call(screenfull, e);
| });
|
| window.screenfull = screenfull;
| })(window, document);
|
|
