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- // Copyright (c) 2012 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #ifndef UI_AURA_CLIENT_FOCUS_CHANGE_OBSERVER_H_
- #define UI_AURA_CLIENT_FOCUS_CHANGE_OBSERVER_H_
- #include "ui/aura/aura_export.h"
- namespace aura {
- class Window;
- namespace client {
- // TODO(beng): this interface will be OBSOLETE by FocusChangeEvent.
- class AURA_EXPORT FocusChangeObserver {
- public:
- // Called when focus moves from |lost_focus| to |gained_focus|.
- virtual void OnWindowFocused(Window* gained_focus, Window* lost_focus) = 0;
- protected:
- virtual ~FocusChangeObserver() {}
- };
- AURA_EXPORT FocusChangeObserver* GetFocusChangeObserver(Window* window);
- AURA_EXPORT void SetFocusChangeObserver(
- Window* window,
- FocusChangeObserver* focus_change_observer);
- } // namespace client
- } // namespace aura
- #endif // UI_AURA_CLIENT_FOCUS_CHANGE_OBSERVER_H_
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