Issue 492 - Implemented popup blocking for Safari

safari/ext/content.js

 /*
  * This file is part of Adblock Plus <http://adblockplus.org/>,
  * Copyright (C) 2006-2014 Eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 20 matching lines @@
   var isTopLevel = window == window.top;
   var isPrerendered = document.visibilityState == "prerender";
 
   var documentInfo = safari.self.tab.canLoad(
     beforeLoadEvent,
     {
       category: "loading",
       url: document.location.href,
       referrer: document.referrer,
       isTopLevel: isTopLevel,
-      isPrerendered: isPrerendered
+      isPrerendered: isPrerendered,
+      isPopup: window.opener != null
     }
   );
 
   if (isTopLevel && isPrerendered)
   {
     var onVisibilitychange = function()
     {
       safari.self.tab.dispatchMessage("replaced", {pageId: documentInfo.pageId});
       document.removeEventListener("visibilitychange", onVisibilitychange);
     };
@@ skipping 355 matching lines @@
             messageProxy.handleResponse(event.message);
             break;
           case "proxyCallback":
             backgroundPageProxy.handleCallback(event.message);
             break;
         }
       }
     }
   });
 })();