1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_TAB_ID_MAP_H_ 6 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_TAB_ID_MAP_H_ 7 #pragma once 8 9 #include <map> 10 #include <utility> 11 12 #include "base/basictypes.h" 13 #include "base/memory/singleton.h" 14 15 // This class keeps track of a map between renderer IDs and tab/window IDs, for 16 // use on the IO thread. All methods should be called on the IO thread except 17 // for Init and Shutdown. 18 class ExtensionTabIdMap { 19 public: 20 static ExtensionTabIdMap* GetInstance(); 21 22 // These are called on the UI thread to start and stop listening to tab 23 // notifications. 24 void Init(); 25 void Shutdown(); 26 27 // Looks up the tab and window ID for a given render view. Returns true 28 // if we have the IDs in our map. Called on the IO thread. 29 bool GetTabAndWindowId( 30 int render_process_host_id, int routing_id, int* tab_id, int* window_id); 31 32 private: 33 class TabObserver; 34 friend class TabObserver; 35 friend struct DefaultSingletonTraits<ExtensionTabIdMap>; 36 37 typedef std::pair<int, int> RenderId; 38 typedef std::pair<int, int> TabAndWindowId; 39 typedef std::map<RenderId, TabAndWindowId> TabAndWindowIdMap; 40 41 ExtensionTabIdMap(); 42 ~ExtensionTabIdMap(); 43 44 // Adds or removes a render view from our map. 45 void SetTabAndWindowId( 46 int render_process_host_id, int routing_id, int tab_id, int window_id); 47 void ClearTabAndWindowId( 48 int render_process_host_id, int routing_id); 49 50 TabObserver* observer_; 51 TabAndWindowIdMap map_; 52 53 DISALLOW_COPY_AND_ASSIGN(ExtensionTabIdMap); 54 }; 55 56 #endif // CHROME_BROWSER_EXTENSIONS_EXTENSION_TAB_ID_MAP_H_ 57
