/*!
* screenfull
* v3.3.1 - 2017-07-07
* (c) Sindre Sorhus; MIT License
*/

!function(){"use strict";var a="undefined"!=typeof window&&void 0!==window.document?window.document:{},b="undefined"!=typeof module&&module.exports,c="undefined"!=typeof Element&&"ALLOW_KEYBOARD_INPUT"in Element,d=function(){for(var b,c=[["requestFullscreen","exitFullscreen","fullscreenElement","fullscreenEnabled","fullscreenchange","fullscreenerror"],["webkitRequestFullscreen","webkitExitFullscreen","webkitFullscreenElement","webkitFullscreenEnabled","webkitfullscreenchange","webkitfullscreenerror"],["webkitRequestFullScreen","webkitCancelFullScreen","webkitCurrentFullScreenElement","webkitCancelFullScreen","webkitfullscreenchange","webkitfullscreenerror"],["mozRequestFullScreen","mozCancelFullScreen","mozFullScreenElement","mozFullScreenEnabled","mozfullscreenchange","mozfullscreenerror"],["msRequestFullscreen","msExitFullscreen","msFullscreenElement","msFullscreenEnabled","MSFullscreenChange","MSFullscreenError"]],d=0,e=c.length,f={};d<e;d++)if((b=c[d])&&b[1]in a){for(d=0;d<b.length;d++)f[c[0][d]]=b[d];return f}return!1}(),e={change:d.fullscreenchange,error:d.fullscreenerror},f={request:function(b){var e=d.requestFullscreen;b=b||a.documentElement,/5\.1[.\d]* Safari/.test(navigator.userAgent)?b[e]():b[e](c&&Element.ALLOW_KEYBOARD_INPUT)},exit:function(){a[d.exitFullscreen]()},toggle:function(a){this.isFullscreen?this.exit():this.request(a)},onchange:function(a){this.on("change",a)},onerror:function(a){this.on("error",a)},on:function(b,c){var d=e[b];d&&a.addEventListener(d,c,!1)},off:function(b,c){var d=e[b];d&&a.removeEventListener(d,c,!1)},raw:d};if(!d)return void(b?module.exports=!1:window.screenfull=!1);Object.defineProperties(f,{isFullscreen:{get:function(){return Boolean(a[d.fullscreenElement])}},element:{enumerable:!0,get:function(){return a[d.fullscreenElement]}},enabled:{enumerable:!0,get:function(){return Boolean(a[d.fullscreenEnabled])}}}),b?module.exports=f:window.screenfull=f}();