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
14namespace aura {
15class Window;
16}
17namespace ui {
18class Layer;
19class LayerTreeOwner;
20}
21namespace 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.
26namespace ash {
27
28// An extension of the window animations provided by CoreWm. These should be
29// Ash-specific only.
30enum 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.
40enum LayerScaleAnimationDirection {
41  LAYER_SCALE_ANIMATION_ABOVE,
42  LAYER_SCALE_ANIMATION_BELOW,
43};
44
45// Amount of time for the cross fade animation.
46extern 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.
52ASH_EXPORT base::TimeDelta CrossFadeAnimation(
53    aura::Window* window,
54    scoped_ptr<ui::LayerTreeOwner> old_layer_owner,
55    gfx::Tween::Type tween_type);
56
57ASH_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.
63ASH_EXPORT std::vector<ui::LayerAnimationSequence*>
64CreateBrightnessGrayscaleAnimationSequence(float target_value,
65                                           base::TimeDelta duration);
66
67// Applies scale related to the specified AshWindowScaleType.
68ASH_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.
75ASH_EXPORT gfx::Rect GetMinimizeAnimationTargetBoundsInScreen(
76    aura::Window* window);
77
78}  // namespace ash
79
80#endif  // ASH_WM_WINDOW_ANIMATIONS_H_
81