can/bower_components/mootools/Source/Browser/Browser.js

MIT-licensed, client-side, JavaScript framework that makes building rich web applications easy.

/*
---

name: Browser

description: The Browser Object. Contains Browser initialization, Window and Document, and the Browser Hash.

license: MIT-style license.

requires: [Array, Function, Number, String]

provides: [Browser, Window, Document]

...
*/

(function(){

var document = this.document;
var window = document.window = this;

var parse = function(ua, platform){
	ua = ua.toLowerCase();
	platform = (platform ? platform.toLowerCase() : '');

	// chrome is included in the edge UA, so need to check for edge first,
	// before checking if it's chrome.
	var UA = ua.match(/(edge)[\s\/:]([\w\d\.]+)/);
	if (!UA){
		UA = ua.match(/(opera|ie|firefox|chrome|trident|crios|version)[\s\/:]([\w\d\.]+)?.*?(safari|(?:rv[\s\/:]|version[\s\/:])([\w\d\.]+)|$)/) || [null, 'unknown', 0];
	}

	if (UA[1] == 'trident'){
		UA[1] = 'ie';
		if (UA[4]) UA[2] = UA[4];
	} else if (UA[1] == 'crios'){
		UA[1] = 'chrome';
	}

	platform = ua.match(/ip(?:ad|od|hone)/) ? 'ios' : (ua.match(/(?:webos|android)/) || ua.match(/mac|win|linux/) || ['other'])[0];
	if (platform == 'win') platform = 'windows';

	return {
		extend: Function.prototype.extend,
		name: (UA[1] == 'version') ? UA[3] : UA[1],
		version: parseFloat((UA[1] == 'opera' && UA[4]) ? UA[4] : UA[2]),
		platform: platform
	};
};

var Browser = this.Browser = parse(navigator.userAgent, navigator.platform);

if (Browser.name == 'ie' && document.documentMode){
	Browser.version = document.documentMode;
}

Browser.extend({
	Features: {
		xpath: !!(document.evaluate),
		air: !!(window.runtime),
		query: !!(document.querySelector),
		json: !!(window.JSON)
	},
	parseUA: parse
});

//<1.4compat>
Browser[Browser.name] = true;
Browser[Browser.name + parseInt(Browser.version, 10)] = true;

if (Browser.name == 'ie' && Browser.version >= '11'){
	delete Browser.ie;
}

var platform = Browser.platform;
if (platform == 'windows'){
	platform = 'win';
}
Browser.Platform = {
	name: platform
};
Browser.Platform[platform] = true;
//</1.4compat>

// Request

Browser.Request = (function(){

	var XMLHTTP = function(){
		return new XMLHttpRequest();
	};

	var MSXML2 = function(){
		return new ActiveXObject('MSXML2.XMLHTTP');
	};

	var MSXML = function(){
		return new ActiveXObject('Microsoft.XMLHTTP');
	};

	return Function.attempt(function(){
		XMLHTTP();
		return XMLHTTP;
	}, function(){
		MSXML2();
		return MSXML2;
	}, function(){
		MSXML();
		return MSXML;
	});

})();

Browser.Features.xhr = !!(Browser.Request);

//<1.4compat>

// Flash detection

var version = (Function.attempt(function(){
	return navigator.plugins['Shockwave Flash'].description;
}, function(){
	return new ActiveXObject('ShockwaveFlash.ShockwaveFlash').GetVariable('$version');
}) || '0 r0').match(/\d+/g);

Browser.Plugins = {
	Flash: {
		version: Number(version[0] || '0.' + version[1]) || 0,
		build: Number(version[2]) || 0
	}
};

//</1.4compat>

// String scripts

Browser.exec = function(text){
	if (!text) return text;
	if (window.execScript){
		window.execScript(text);
	} else {
		var script = document.createElement('script');
		script.setAttribute('type', 'text/javascript');
		script.text = text;
		document.head.appendChild(script);
		document.head.removeChild(script);
	}
	return text;
};

String.implement('stripScripts', function(exec){
	var scripts = '';
	var text = this.replace(/<script[^>]*>([\s\S]*?)<\/script>/gi, function(all, code){
		scripts += code + '\n';
		return '';
	});
	if (exec === true) Browser.exec(scripts);
	else if (typeOf(exec) == 'function') exec(scripts, text);
	return text;
});

// Window, Document

Browser.extend({
	Document: this.Document,
	Window: this.Window,
	Element: this.Element,
	Event: this.Event
});

this.Window = this.$constructor = new Type('Window', function(){});

this.$family = Function.from('window').hide();

Window.mirror(function(name, method){
	window[name] = method;
});

this.Document = document.$constructor = new Type('Document', function(){});

document.$family = Function.from('document').hide();

Document.mirror(function(name, method){
	document[name] = method;
});

document.html = document.documentElement;
if (!document.head) document.head = document.getElementsByTagName('head')[0];

if (document.execCommand) try {
	document.execCommand("BackgroundImageCache", false, true);
} catch (e){}

/*<ltIE9>*/
if (this.attachEvent && !this.addEventListener){
	var unloadEvent = function(){
		this.detachEvent('onunload', unloadEvent);
		document.head = document.html = document.window = null;
		window = this.Window = document = null;
	};
	this.attachEvent('onunload', unloadEvent);
}

// IE fails on collections and <select>.options (refers to <select>)
var arrayFrom = Array.from;
try {
	arrayFrom(document.html.childNodes);
} catch(e){
	Array.from = function(item){
		if (typeof item != 'string' && Type.isEnumerable(item) && typeOf(item) != 'array'){
			var i = item.length, array = new Array(i);
			while (i--) array[i] = item[i];
			return array;
		}
		return arrayFrom(item);
	};

	var prototype = Array.prototype,
		slice = prototype.slice;
	['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift', 'concat', 'join', 'slice'].each(function(name){
		var method = prototype[name];
		Array[name] = function(item){
			return method.apply(Array.from(item), slice.call(arguments, 1));
		};
	});
}
/*</ltIE9>*/

//<1.2compat>

if (Browser.Platform.ios) Browser.Platform.ipod = true;

Browser.Engine = {};

var setEngine = function(name, version){
	Browser.Engine.name = name;
	Browser.Engine[name + version] = true;
	Browser.Engine.version = version;
};

if (Browser.ie){
	Browser.Engine.trident = true;

	switch (Browser.version){
		case 6: setEngine('trident', 4); break;
		case 7: setEngine('trident', 5); break;
		case 8: setEngine('trident', 6);
	}
}

if (Browser.firefox){
	Browser.Engine.gecko = true;

	if (Browser.version >= 3) setEngine('gecko', 19);
	else setEngine('gecko', 18);
}

if (Browser.safari || Browser.chrome){
	Browser.Engine.webkit = true;

	switch (Browser.version){
		case 2: setEngine('webkit', 419); break;
		case 3: setEngine('webkit', 420); break;
		case 4: setEngine('webkit', 525);
	}
}

if (Browser.opera){
	Browser.Engine.presto = true;

	if (Browser.version >= 9.6) setEngine('presto', 960);
	else if (Browser.version >= 9.5) setEngine('presto', 950);
	else setEngine('presto', 925);
}

if (Browser.name == 'unknown'){
	switch ((navigator.userAgent.toLowerCase().match(/(?:webkit|khtml|gecko)/) || [])[0]){
		case 'webkit':
		case 'khtml':
			Browser.Engine.webkit = true;
		break;
		case 'gecko':
			Browser.Engine.gecko = true;
	}
}

this.$exec = Browser.exec;

//</1.2compat>

})();