/*
Script: Browser.js
The Browser Core. Contains Browser initialization, Window and Document, and the Browser Hash.
License:
MIT-style license.
*/
var Browser = new Hash({
Engine: {name: 'unknown', version: ''},
Platform: {name: (navigator.platform.match(/mac|win|linux/i) || ['other'])[0].toLowerCase()},
Features: {xpath: !!(document.evaluate), air: !!(window.runtime)},
Plugins: {}
});
if (window.opera) Browser.Engine = {name: 'presto', version: (document.getElementsByClassName) ? 950 : 925};
else if (window.ActiveXObject) Browser.Engine = {name: 'trident', version: (window.XMLHttpRequest) ? 5 : 4};
else if (!navigator.taintEnabled) Browser.Engine = {name: 'webkit', version: (Browser.Features.xpath) ? 420 : 419};
else if (document.getBoxObjectFor != null) Browser.Engine = {name: 'gecko', version: (document.getElementsByClassName) ? 19 : 18};
Browser.Engine[Browser.Engine.name] = Browser.Engine[Browser.Engine.name + Browser.Engine.version] = true;
if (window.orientation != undefined) Browser.Platform.name = 'ipod';
Browser.Platform[Browser.Platform.name] = true;
Browser.Request = function(){
return $try(function(){
return new XMLHttpRequest();
}, function(){
return new ActiveXObject('MSXML2.XMLHTTP');
});
};
Browser.Features.xhr = !!(Browser.Request());
Browser.Plugins.Flash = (function(){
var version = ($try(function(){
return navigator.plugins['Shockwave Flash'].description;
}, function(){
return new ActiveXObject('ShockwaveFlash.ShockwaveFlash').GetVariable('$version');
}) || '0 r0').match(/\d+/g);
return {version: parseInt(version[0] || 0 + '.' + version[1] || 0), build: parseInt(version[2] || 0)};
})();
function $exec(text){
if (!text) return text;
if (window.execScript){
window.execScript(text);
} else {
eval(text);
/*var script = document.createElement('script');
script.setAttribute('type', 'text/javascript');
script.text = text;
document.head.appendChild(script);
document.head.removeChild(script);*/
}
return text;
};
Native.UID = 1;
var $uid = (Browser.Engine.trident) ? function(item){
return (item.uid || (item.uid = [Native.UID++]))[0];
} : function(item){
return item.uid || (item.uid = Native.UID++);
};
var Window = new Native({
name: 'Window',
legacy: (Browser.Engine.trident) ? null: window.Window,
initialize: function(win){
$uid(win);
if (!win.Element){
win.Element = $empty;
if (Browser.Engine.webkit) win.document.createElement("iframe"); //fixes safari 2
win.Element.prototype = (Browser.Engine.webkit) ? window["[[DOMElement.prototype]]"] : {};
}
return $extend(win, Window.Prototype);
},
afterImplement: function(property, value){
window[property] = Window.Prototype[property] = value;
}
});
Window.Prototype = {$family: {name: 'window'}};
new Window(window);
var Document = new Native({
name: 'Document',
legacy: (Browser.Engine.trident) ? null: window.Document,
initialize: function(doc){
$uid(doc);
doc.head = doc.getElementsByTagName('head')[0];
doc.html = doc.getElementsByTagName('html')[0];
doc.window = doc.defaultView || doc.parentWindow;
if (Browser.Engine.trident4) $try(function(){
doc.execCommand("BackgroundImageCache", false, true);
});
return $extend(doc, Document.Prototype);
},
afterImplement: function(property, value){
document[property] = Document.Prototype[property] = value;
}
});
Document.Prototype = {$family: {name: 'document'}};
new Document(document);