Issue 1868 - Create overlays for <img> elements to work around issues with <area> elements

include.postload.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 326 matching lines @@
 
 // Turn on the choose element to create filter thing
 function clickHide_activate() {
   if(document == null)
     return;
 
   // If we are already selecting, abort now
   if (clickHide_activated || clickHideFiltersDialog)
     clickHide_deactivate();
 
-  // Add overlays for blockable elements that don't emit mouse events that they can still be selected
-  var elts = document.querySelectorAll('object,embed,iframe,frame');
+  // Add overlays for blockable elements that don't emit mouse events that they
+  // can still be selected. While images generally emit mouse events we have
+  // also to add overlays for them, in case <area> elments are used (#1868).
+  var elts = document.querySelectorAll('object,embed,iframe,frame,img');
   for(var i=0; i<elts.length; i++)
   {
     var element = elts[i];
     if (isBlockable(element))
       addElementOverlay(element);
   }
 
   clickHide_activated = true;
   document.addEventListener("mouseover", clickHide_mouseOver, true);
   document.addEventListener("mouseout", clickHide_mouseOut, true);
@@ skipping 370 matching lines @@
           lastRightClickEventValid = false;
         else
           lastRightClickEvent = null;
         break;
     }
   });
 
   if (window == window.top)
     ext.backgroundPage.sendMessage({type: "report-html-page"});
 }