source: Dev/trunk/src/client/dojo/gears.js @ 527

define(["./_base/lang", "./sniff"], function(lang, has){

// module:
//              dojo/gears

var gears = {
        // summary:
        //              TODOC
};
lang.setObject("dojo.gears", gears);

gears._gearsObject = function(){
        // summary:
        //              factory method to get a Google Gears plugin instance to
        //              expose in the browser runtime environment, if present
        var factory;

        var gearsObj = lang.getObject("google.gears");
        if(gearsObj){ return gearsObj; } // already defined elsewhere

        if(typeof GearsFactory != "undefined"){ // Firefox
                factory = new GearsFactory();
        }else{
                if(has("ie")){
                        // IE
                        try{
                                factory = new ActiveXObject("Gears.Factory");
                        }catch(e){
                                // ok to squelch; there's no gears factory.  move on.
                        }
                }else if(navigator.mimeTypes["application/x-googlegears"]){
                        // Safari?
                        factory = document.createElement("object");
                        factory.setAttribute("type", "application/x-googlegears");
                        factory.setAttribute("width", 0);
                        factory.setAttribute("height", 0);
                        factory.style.display = "none";
                        document.documentElement.appendChild(factory);
                }
        }

        // still nothing?
        if(!factory){ return null; }

        // define the global objects now; don't overwrite them though if they
        // were somehow set internally by the Gears plugin, which is on their
        // dev roadmap for the future
        lang.setObject("google.gears.factory", factory);
        return lang.getObject("google.gears");
};


// see if we have Google Gears installed, and if
// so, make it available in the runtime environment
// and in the Google standard 'google.gears' global object
gears.available = (!!gears._gearsObject())||0;
/*=====
 gears.available = {
 // summary:
 //             True if client is using Google Gears
 };
 =====*/

return gears;
});