114 lines
3.2 KiB
JavaScript
114 lines
3.2 KiB
JavaScript
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if (typeof Object.create !== 'function') {
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Object.create = function (o) {
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function F() {}
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F.prototype = o;
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return new F();
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};
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}
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function $tryCatch() {
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for (var i = 0, l = arguments.length; i < l; i++){
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try {
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return arguments[i]();
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} catch(e){}
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}
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return null;
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};
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var Browser = {
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Engine: {name: 'unknown', version: 0},
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Platform: {name: (window.orientation != undefined) ? 'ipod' : (navigator.platform.match(/mac|win|linux/i) || ['other'])[0].toLowerCase()},
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Features: {xpath: !!(document.evaluate), air: !!(window.runtime), query: !!(document.querySelector)},
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Plugins: {},
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Engines: {
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presto: function(){
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return (!window.opera) ? false : ((arguments.callee.caller) ? 960 : ((document.getElementsByClassName) ? 950 : 925));
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},
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trident: function(){
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return (!window.ActiveXObject) ? false : ((window.XMLHttpRequest) ? ((document.querySelectorAll) ? 6 : 5) : 4);
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},
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webkit: function(){
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return (navigator.taintEnabled) ? false : ((Browser.Features.xpath) ? ((Browser.Features.query) ? 525 : 420) : 419);
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},
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gecko: function(){
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return (!document.getBoxObjectFor && window.mozInnerScreenX == null) ? false : ((document.getElementsByClassName) ? 19 : 18);
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}
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}
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};
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Browser.Platform[Browser.Platform.name] = true;
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Browser.detect = function(){
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for (var engine in this.Engines){
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var version = this.Engines[engine]();
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if (version){
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this.Engine = {name: engine, version: version};
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this.Engine[engine] = this.Engine[engine + version] = true;
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break;
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}
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}
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return {name: engine, version: version};
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};
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Browser.detect();
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Browser.Request = function(){
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return $tryCatch(function(){
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return new XMLHttpRequest();
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}, function(){
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return new ActiveXObject('MSXML2.XMLHTTP');
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}, function(){
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return new ActiveXObject('Microsoft.XMLHTTP');
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});
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};
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Browser.Features.xhr = !!(Browser.Request());
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Browser.Plugins.Flash = (function(){
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var version = ($tryCatch(function(){
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return navigator.plugins['Shockwave Flash'].description;
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}, function(){
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return new ActiveXObject('ShockwaveFlash.ShockwaveFlash').GetVariable('$version');
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}) || '0 r0').match(/\d+/g);
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return {version: parseInt(version[0] || 0 + '.' + version[1], 10) || 0, build: parseInt(version[2], 10) || 0};
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})();
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function $exec(text){
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if (!text) return text;
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if (window.execScript){
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window.execScript(text);
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} else {
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var script = document.createElement('script');
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script.setAttribute('type', 'text/javascript');
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script[(Browser.Engine.webkit && Browser.Engine.version < 420) ? 'innerText' : 'text'] = text;
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document.head.appendChild(script);
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document.head.removeChild(script);
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}
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return text;
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};
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function getPosition(element) {
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var xPosition = 0;
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var yPosition = 0;
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while(element) {
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xPosition += (element.offsetLeft - element.scrollLeft + element.clientLeft);
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yPosition += (element.offsetTop - element.scrollTop + element.clientTop);
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element = element.offsetParent;
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}
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return { x: xPosition, y: yPosition };
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}
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