OLD | NEW |
| (Empty) |
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_DELEGATE_H_ | |
6 #define UI_AURA_CLIENT_ACTIVATION_DELEGATE_H_ | |
7 #pragma once | |
8 | |
9 #include "ui/aura/aura_export.h" | |
10 | |
11 namespace aura { | |
12 | |
13 class Event; | |
14 class Window; | |
15 | |
16 // An interface implemented by an object that configures and responds to changes | |
17 // to a window's activation state. | |
18 class AURA_EXPORT ActivationDelegate { | |
19 public: | |
20 // Sets/Gets the ActivationDelegate on the Window. No ownership changes. | |
21 static void SetActivationDelegate(Window* window, | |
22 ActivationDelegate* delegate); | |
23 static ActivationDelegate* GetActivationDelegate(Window* window); | |
24 | |
25 // Returns true if the window should be activated. |event| is either the mouse | |
26 // event supplied if the activation is the result of a mouse, or the touch | |
27 // event if the activation is the result of a touch, or NULL if activation is | |
28 // attempted for another reason. | |
29 virtual bool ShouldActivate(Event* event) = 0; | |
30 | |
31 // Sent when the window is activated. | |
32 virtual void OnActivated() = 0; | |
33 | |
34 // Sent when the window loses active status. | |
35 virtual void OnLostActive() = 0; | |
36 | |
37 protected: | |
38 virtual ~ActivationDelegate() {} | |
39 }; | |
40 | |
41 } // namespace aura | |
42 | |
43 #endif // UI_AURA_CLIENT_ACTIVATION_DELEGATE_H_ | |
OLD | NEW |