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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_VISIBILITY_CONTROLLER_H_ | |
6 #define UI_VIEWS_COREWM_VISIBILITY_CONTROLLER_H_ | |
7 | |
8 #include "base/compiler_specific.h" | |
9 #include "base/logging.h" | |
10 #include "ui/aura/client/visibility_client.h" | |
11 #include "ui/views/views_export.h" | |
12 | |
13 namespace views { | |
14 namespace corewm { | |
15 | |
16 class VIEWS_EXPORT VisibilityController | |
17 : public aura::client::VisibilityClient { | |
18 public: | |
19 VisibilityController(); | |
20 virtual ~VisibilityController(); | |
21 | |
22 protected: | |
23 // Subclasses override if they want to call a different implementation of | |
24 // this function. | |
25 // TODO(beng): potentially replace by an actual window animator class in | |
26 // window_animations.h. | |
27 virtual bool CallAnimateOnChildWindowVisibilityChanged(aura::Window* window, | |
28 bool visible); | |
29 | |
30 private: | |
31 // Overridden from aura::client::VisibilityClient: | |
32 virtual void UpdateLayerVisibility(aura::Window* window, | |
33 bool visible) OVERRIDE; | |
34 | |
35 DISALLOW_COPY_AND_ASSIGN(VisibilityController); | |
36 }; | |
37 | |
38 // Suspends the animations for visibility changes during the lifetime of an | |
39 // instance of this class. | |
40 // | |
41 // Example: | |
42 // | |
43 // void ViewName::UnanimatedAction() { | |
44 // SuspendChildWindowVisibilityAnimations suspend(parent); | |
45 // // Perform unanimated action here. | |
46 // // ... | |
47 // // When the method finishes, visibility animations will return to their | |
48 // // previous state. | |
49 // } | |
50 // | |
51 class VIEWS_EXPORT SuspendChildWindowVisibilityAnimations { | |
52 public: | |
53 // Suspend visibility animations of child windows. | |
54 explicit SuspendChildWindowVisibilityAnimations(aura::Window* window); | |
55 | |
56 // Restore visibility animations to their original state. | |
57 ~SuspendChildWindowVisibilityAnimations(); | |
58 | |
59 private: | |
60 // The window to manage. | |
61 aura::Window* window_; | |
62 | |
63 // Whether the visibility animations on child windows were originally enabled. | |
64 const bool original_enabled_; | |
65 | |
66 DISALLOW_COPY_AND_ASSIGN(SuspendChildWindowVisibilityAnimations); | |
67 }; | |
68 | |
69 // Tells |window| to animate visibility changes to its children. | |
70 void VIEWS_EXPORT SetChildWindowVisibilityChangesAnimated(aura::Window* window); | |
71 | |
72 } // namespace corewm | |
73 } // namespace views | |
74 | |
75 #endif // UI_VIEWS_COREWM_VISIBILITY_CONTROLLER_H_ | |
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