| // Copyright 2016 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_TRANSIENT_WINDOW_CLIENT_OBSERVER_H_ |
| #define UI_AURA_CLIENT_TRANSIENT_WINDOW_CLIENT_OBSERVER_H_ |
| |
| #include "ui/aura/aura_export.h" |
| |
| namespace aura { |
| |
| class Window; |
| |
| namespace client { |
| |
| class AURA_EXPORT TransientWindowClientObserver { |
| public: |
| // Called when a window is added as a transient child. This is called once |
| // the child is added as a transient, but before any restacking occurs. |
| virtual void OnTransientChildWindowAdded(Window* parent, |
| Window* transient_child) = 0; |
| |
| // Called when a window is removed as a transient child. This is called once |
| // the child is removed as a transient, but before any restacking occurs. |
| virtual void OnTransientChildWindowRemoved(Window* parent, |
| Window* transient_child) = 0; |
| |
| protected: |
| virtual ~TransientWindowClientObserver() {} |
| }; |
| |
| } // namespace client |
| } // namespace aura |
| |
| #endif // UI_AURA_CLIENT_TRANSIENT_WINDOW_CLIENT_OBSERVER_H_ |