chrome/browser/extensions/window_controller_list.h

   1 // Copyright (c) 2012 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_WINDOW_CONTROLLER_LIST_H_
   6 #define CHROME_BROWSER_EXTENSIONS_WINDOW_CONTROLLER_LIST_H_
   7
   8 #include <list>
   9
  10 #include "base/compiler_specific.h"
  11 #include "base/memory/singleton.h"
  12 #include "base/observer_list.h"
  13 #include "chrome/browser/extensions/window_controller.h"
  14
  15 class Profile;
  16 class ChromeAsyncExtensionFunction;
  17
  18 namespace extensions {
  19
  20 class WindowControllerListObserver;
  21
  22 // Class to maintain a list of WindowControllers.
  23 class WindowControllerList {
  24  public:
  25   typedef std::list<WindowController*> ControllerList;
  26
  27   WindowControllerList();
  28   ~WindowControllerList();
  29
  30   void AddExtensionWindow(WindowController* window);
  31   void RemoveExtensionWindow(WindowController* window);
  32
  33   void AddObserver(WindowControllerListObserver* observer);
  34   void RemoveObserver(WindowControllerListObserver* observer);
  35
  36   // Returns a window matching |id|.
  37   WindowController* FindWindowById(int id) const;
  38
  39   // Returns a window matching the context the function was invoked in.
  40   WindowController* FindWindowForFunctionById(
  41       const ChromeAsyncExtensionFunction* function,
  42       int id) const;
  43
  44   // Returns the focused or last added window matching the context the function
  45   // was invoked in.
  46   WindowController* CurrentWindowForFunction(
  47       const ChromeAsyncExtensionFunction* function) const;
  48
  49   const ControllerList& windows() const { return windows_; }
  50
  51   static WindowControllerList* GetInstance();
  52
  53  private:
  54   friend struct DefaultSingletonTraits<WindowControllerList>;
  55
  56   // Entries are not owned by this class and must be removed when destroyed.
  57   ControllerList windows_;
  58
  59   ObserverList<WindowControllerListObserver> observers_;
  60
  61   DISALLOW_COPY_AND_ASSIGN(WindowControllerList);
  62 };
  63
  64 }  // namespace extensions
  65
  66 #endif  // CHROME_BROWSER_EXTENSIONS_WINDOW_CONTROLLER_LIST_H_