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- // 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_
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