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1 // Copyright (c) 2012 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_VIEWS_COREWM_SHADOW_CONTROLLER_H_ | |
6 #define UI_VIEWS_COREWM_SHADOW_CONTROLLER_H_ | |
7 | |
8 #include <map> | |
9 | |
10 #include "base/basictypes.h" | |
11 #include "base/compiler_specific.h" | |
12 #include "base/memory/ref_counted.h" | |
13 #include "ui/aura/client/activation_change_observer.h" | |
14 #include "ui/views/views_export.h" | |
15 | |
16 namespace aura { | |
17 class Window; | |
18 namespace client { | |
19 class ActivationClient; | |
20 } | |
21 } | |
22 namespace gfx { | |
23 class Rect; | |
24 } | |
25 | |
26 namespace views { | |
27 namespace corewm { | |
28 | |
29 class Shadow; | |
30 | |
31 // ShadowController observes changes to windows and creates and updates drop | |
32 // shadows as needed. ShadowController itself is light weight and per | |
33 // ActivationClient. ShadowController delegates to its implementation class, | |
34 // which observes all window creation. | |
35 class VIEWS_EXPORT ShadowController : | |
36 public aura::client::ActivationChangeObserver { | |
37 public: | |
38 class VIEWS_EXPORT TestApi { | |
39 public: | |
40 explicit TestApi(ShadowController* controller) : controller_(controller) {} | |
41 ~TestApi() {} | |
42 | |
43 Shadow* GetShadowForWindow(aura::Window* window); | |
44 | |
45 private: | |
46 ShadowController* controller_; // not owned | |
47 | |
48 DISALLOW_COPY_AND_ASSIGN(TestApi); | |
49 }; | |
50 | |
51 explicit ShadowController(aura::client::ActivationClient* activation_client); | |
52 virtual ~ShadowController(); | |
53 | |
54 // aura::client::ActivationChangeObserver overrides: | |
55 virtual void OnWindowActivated(aura::Window* gained_active, | |
56 aura::Window* lost_active) OVERRIDE; | |
57 | |
58 private: | |
59 class Impl; | |
60 | |
61 aura::client::ActivationClient* activation_client_; | |
62 | |
63 scoped_refptr<Impl> impl_; | |
64 | |
65 DISALLOW_COPY_AND_ASSIGN(ShadowController); | |
66 }; | |
67 | |
68 } // namespace corewm | |
69 } // namespace views | |
70 | |
71 #endif // UI_VIEWS_COREWM_SHADOW_CONTROLLER_H_ | |
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