Issue 3223 - Implement context menu fallback for SeaMonkey Mail and Thunderbird

lib/ui.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2015 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 1587 matching lines @@
    * up.
    */
   fillContentContextMenu: function(/**Element*/ popup)
   {
     let window = popup.ownerDocument.defaultView;
     let data = window.gContextMenuContentData;
     if (!data)
     {
       // This is SeaMonkey Mail or Thunderbird, they won't get context menu data
       // for us. Send the notification ourselves.
-      let event = new Event("contextmenu");

[tschuster, 2015/12/02 12:14:17]

Isn't event = {target: popup.triggernode} enough?

[Wladimir Palant, 2015/12/02 12:20:54]

Fair enough, no point faking the notification properly if nobody other than us
will be listening to it.

-      Object.defineProperty(event, "target", {"get": () => popup.triggerNode});
       data = {
-        event: event,
+        event: {target: popup.triggerNode},
         addonInfo: {},
         get wrappedJSObject() {return this;}
       };
       Services.obs.notifyObservers(data, "AdblockPlus:content-contextmenu", null);
     }
 
     if (typeof data.addonInfo != "object" || typeof data.addonInfo.adblockplus != "object")
       return;
 
     let items = data.addonInfo.adblockplus;
@@ skipping 276 matching lines @@
   ["abp-command-contribute-hide", "command", UI.hideContributeButton.bind(UI)],
   ["abp-command-toggleshownotifications", "command", Notification.toggleIgnoreCategory.bind(Notification, "*", null)]
 ];
 
 onShutdown.add(function()
 {
   for (let window of UI.applicationWindows)
     if (UI.isBottombarOpen(window))
       UI.toggleBottombar(window);
 });