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| 1 // Copyright (c) 2011 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 UI_AURA_CLIENT_ACTIVATION_CLIENT_H_ |
| 6 #define UI_AURA_CLIENT_ACTIVATION_CLIENT_H_ |
| 7 #pragma once |
| 8 |
| 9 #include "ui/aura/aura_export.h" |
| 10 |
| 11 namespace aura { |
| 12 |
| 13 class Window; |
| 14 |
| 15 // An interface implemented by an object that manages window activation. |
| 16 class AURA_EXPORT ActivationClient { |
| 17 public: |
| 18 // Sets/Gets the activation client on the RootWindow. |
| 19 static void SetActivationClient(ActivationClient* client); |
| 20 static ActivationClient* GetActivationClient(); |
| 21 |
| 22 // Activates |window|. If |window| is NULL, nothing happens. |
| 23 virtual void ActivateWindow(Window* window) = 0; |
| 24 |
| 25 // Deactivates |window|. What (if anything) is activated next is up to the |
| 26 // client. If |window| is NULL, nothing happens. |
| 27 virtual void DeactivateWindow(Window* window) = 0; |
| 28 |
| 29 // Retrieves the active window, or NULL if there is none. |
| 30 virtual aura::Window* GetActiveWindow() = 0; |
| 31 |
| 32 // Returns true if |window| can be focused. To be focusable, |window| must |
| 33 // exist inside an activatable window. |
| 34 virtual bool CanFocusWindow(Window* window) const = 0; |
| 35 |
| 36 protected: |
| 37 virtual ~ActivationClient() {} |
| 38 }; |
| 39 |
| 40 } // namespace aura |
| 41 |
| 42 #endif // UI_AURA_CLIENT_ACTIVATION_CLIENT_H_ |
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