Issue 3532 - Generate animation images at runtime

chrome/ext/background.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2016 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 81 matching lines @@
       }
 
       chrome.tabs.query(rawInfo, function(tabs)
       {
         callback(tabs.map(function(tab)
         {
           return new Page(tab);
         }));
       });
     },
-    onLoading: new ext._EventTarget()
+    onLoading: new ext._EventTarget(),
+    onActivated: new ext._EventTarget()
   };
 
   chrome.tabs.onUpdated.addListener(function(tabId, changeInfo, tab)
   {
     if (changeInfo.status == "loading")
       ext.pages.onLoading._dispatch(new Page(tab));
   });
 
   chrome.webNavigation.onBeforeNavigate.addListener(function(details)
   {
@@ skipping 27 matching lines @@
     ext._removeFromAllPageMaps(tabId);
     delete framesOfTabs[tabId];
   }
 
   chrome.tabs.onReplaced.addListener(function(addedTabId, removedTabId)
   {
     forgetTab(removedTabId);
   });
 
   chrome.tabs.onRemoved.addListener(forgetTab);
+
+  chrome.tabs.onActivated.addListener(details =>
+  {
+    ext.pages.onActivated._dispatch(new Page({id: details.tabId}));
+  });
 
 
   /* Browser actions */
 
   var BrowserAction = function(tabId)
   {
     this._tabId = tabId;
     this._changes = null;
   };
   BrowserAction.prototype = {
@@ skipping 408 matching lines @@
             callback(new Page(tab));
         }
         else
         {
           ext.pages.open(optionsUrl, callback);
         }
       });
     });
   };
 })();