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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 ASH_WM_WINDOW_ANIMATIONS_H_
6 #define ASH_WM_WINDOW_ANIMATIONS_H_
7 
8 #include "ash/ash_export.h"
9 #include "base/memory/scoped_ptr.h"
10 #include "ui/gfx/animation/tween.h"
11 #include "ui/gfx/transform.h"
12 #include "ui/wm/core/window_animations.h"
13 
14 namespace aura {
15 class Window;
16 }
17 namespace ui {
18 class Layer;
19 class LayerTreeOwner;
20 }
21 namespace views {
22 }
23 
24 // This is only for animations specific to Ash. For window animations shared
25 // with desktop Chrome, see ui/views/corewm/window_animations.h.
26 namespace ash {
27 
28 // An extension of the window animations provided by CoreWm. These should be
29 // Ash-specific only.
30 enum WindowVisibilityAnimationType {
31   // Window scale/rotates down to its launcher icon.
32   WINDOW_VISIBILITY_ANIMATION_TYPE_MINIMIZE =
33       ::wm::WINDOW_VISIBILITY_ANIMATION_MAX,
34   // Fade in/out using brightness and grayscale web filters.
35   WINDOW_VISIBILITY_ANIMATION_TYPE_BRIGHTNESS_GRAYSCALE
36 };
37 
38 // Direction for ash-specific window animations used in workspaces and
39 // lock/unlock animations.
40 enum LayerScaleAnimationDirection {
41   LAYER_SCALE_ANIMATION_ABOVE,
42   LAYER_SCALE_ANIMATION_BELOW,
43 };
44 
45 // Amount of time for the cross fade animation.
46 extern const int kCrossFadeDurationMS;
47 
48 // Implementation of cross fading. Window is the window being cross faded. It
49 // should be at the target bounds. |old_layer_owner| contains the previous layer
50 // from |window|.  |tween_type| specifies the tween type of the cross fade
51 // animation.
52 ASH_EXPORT base::TimeDelta CrossFadeAnimation(
53     aura::Window* window,
54     scoped_ptr<ui::LayerTreeOwner> old_layer_owner,
55     gfx::Tween::Type tween_type);
56 
57 ASH_EXPORT bool AnimateOnChildWindowVisibilityChanged(aura::Window* window,
58                                                       bool visible);
59 
60 // Creates vector of animation sequences that lasts for |duration| and changes
61 // brightness and grayscale to |target_value|. Caller takes ownership of
62 // returned LayerAnimationSequence objects.
63 ASH_EXPORT std::vector<ui::LayerAnimationSequence*>
64 CreateBrightnessGrayscaleAnimationSequence(float target_value,
65                                            base::TimeDelta duration);
66 
67 // Applies scale related to the specified AshWindowScaleType.
68 ASH_EXPORT void SetTransformForScaleAnimation(
69     ui::Layer* layer,
70     LayerScaleAnimationDirection type);
71 
72 // Returns the approximate bounds to which |window| will be animated when it
73 // is minimized. The bounds are approximate because the minimize animation
74 // involves rotation.
75 ASH_EXPORT gfx::Rect GetMinimizeAnimationTargetBoundsInScreen(
76     aura::Window* window);
77 
78 }  // namespace ash
79 
80 #endif  // ASH_WM_WINDOW_ANIMATIONS_H_
81