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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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