1 /* See license.txt for terms of usage */
  2 
  3 define([
  4 ],
  5 function() {
  6 
  7 // ********************************************************************************************* //
  8 // Constants
  9 
 10 const Cc = Components.classes;
 11 const Ci = Components.interfaces;
 12 
 13 // ********************************************************************************************* //
 14 // Base observer
 15 
 16 var BaseObserver =
 17 {
 18     QueryInterface : function (aIID) 
 19     {
 20         if (aIID.equals(Ci.nsIObserver) ||
 21             aIID.equals(Ci.nsISupportsWeakReference) ||
 22             aIID.equals(Ci.nsISupports))
 23         {
 24             return this;
 25         }
 26 
 27         throw Components.results.NS_NOINTERFACE;
 28     }
 29 };
 30 
 31 // ********************************************************************************************* //
 32 
 33 return BaseObserver;
 34 
 35 // ********************************************************************************************* //
 36 });
 37 
 38