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_OBSERVER_H_ 6 #define CHROME_BROWSER_EXTENSIONS_WINDOW_CONTROLLER_LIST_OBSERVER_H_ 7 8 namespace extensions { 9 10 class WindowController; 11 12 // Implementations must not change the contents of the WindowControllerList 13 // inside any of these methods. 14 class WindowControllerListObserver { 15 public: 16 // Called immediately after a window controller is added to the list OnWindowControllerAdded(WindowController * window_controller)17 virtual void OnWindowControllerAdded(WindowController* window_controller) {} 18 19 // Called immediately after a window controller is removed from the list OnWindowControllerRemoved(WindowController * window_controller)20 virtual void OnWindowControllerRemoved(WindowController* window_controller) {} 21 22 protected: ~WindowControllerListObserver()23 virtual ~WindowControllerListObserver() {} 24 }; 25 26 } // namespace extensions 27 28 #endif // CHROME_BROWSER_EXTENSIONS_WINDOW_CONTROLLER_LIST_OBSERVER_H_ 29