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66 lines
1.7 KiB
JavaScript
66 lines
1.7 KiB
JavaScript
define("dojo/gears", ["./_base/lang", "./sniff"], function(lang, has){
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// module:
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// dojo/gears
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var gears = {
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// summary:
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// TODOC
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};
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lang.setObject("dojo.gears", gears);
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gears._gearsObject = function(){
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// summary:
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// factory method to get a Google Gears plugin instance to
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// expose in the browser runtime environment, if present
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var factory;
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var gearsObj = lang.getObject("google.gears");
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if(gearsObj){ return gearsObj; } // already defined elsewhere
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if(typeof GearsFactory != "undefined"){ // Firefox
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factory = new GearsFactory();
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}else{
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if(has("ie")){
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// IE
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try{
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factory = new ActiveXObject("Gears.Factory");
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}catch(e){
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// ok to squelch; there's no gears factory. move on.
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}
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}else if(navigator.mimeTypes["application/x-googlegears"]){
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// Safari?
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factory = document.createElement("object");
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factory.setAttribute("type", "application/x-googlegears");
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factory.setAttribute("width", 0);
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factory.setAttribute("height", 0);
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factory.style.display = "none";
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document.documentElement.appendChild(factory);
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}
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}
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// still nothing?
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if(!factory){ return null; }
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// define the global objects now; don't overwrite them though if they
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// were somehow set internally by the Gears plugin, which is on their
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// dev roadmap for the future
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lang.setObject("google.gears.factory", factory);
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return lang.getObject("google.gears");
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};
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// see if we have Google Gears installed, and if
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// so, make it available in the runtime environment
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// and in the Google standard 'google.gears' global object
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gears.available = (!!gears._gearsObject())||0;
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/*=====
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gears.available = {
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// summary:
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// True if client is using Google Gears
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};
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=====*/
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return gears;
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});
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