1/*
2 Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)
3
4 This library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Library General Public
6 License as published by the Free Software Foundation; either
7 version 2 of the License, or (at your option) any later version.
8
9 This library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12 Library General Public License for more details.
13
14 You should have received a copy of the GNU Library General Public License
15 along with this library; see the file COPYING.LIB.  If not, write to
16 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 Boston, MA 02110-1301, USA.
18 */
19
20#ifndef GraphicsLayerAnimation_h
21#define GraphicsLayerAnimation_h
22
23#if USE(ACCELERATED_COMPOSITING)
24
25#include "GraphicsLayer.h"
26#include "TransformationMatrix.h"
27#include <wtf/HashMap.h>
28#include <wtf/text/StringHash.h>
29
30namespace WebCore {
31
32class GraphicsLayerAnimation {
33public:
34    enum AnimationState { PlayingState, PausedState, StoppedState };
35    class Client {
36    public:
37        virtual void setAnimatedTransform(const TransformationMatrix&) = 0;
38        virtual void setAnimatedOpacity(float) = 0;
39#if ENABLE(CSS_FILTERS)
40        virtual void setAnimatedFilters(const FilterOperations&) = 0;
41#endif
42    };
43
44    GraphicsLayerAnimation()
45        : m_keyframes(AnimatedPropertyInvalid)
46    { }
47    GraphicsLayerAnimation(const String&, const KeyframeValueList&, const IntSize&, const Animation*, double, bool);
48    void apply(Client*);
49    void pause(double);
50    void resume();
51    double computeTotalRunningTime();
52    AnimationState state() const { return m_state; }
53    void setState(AnimationState s, double pauseTime = 0)
54    {
55        m_state = s;
56        m_pauseTime = pauseTime;
57    }
58    AnimatedPropertyID property() const { return m_keyframes.property(); }
59    bool isActive() const;
60    String name() const { return m_name; }
61    IntSize boxSize() const { return m_boxSize; }
62    double startTime() const { return m_startTime; }
63    double pauseTime() const { return m_pauseTime; }
64    PassRefPtr<Animation> animation() const { return m_animation.get(); }
65    const KeyframeValueList& keyframes() const { return m_keyframes; }
66    bool listsMatch() const { return m_listsMatch; }
67
68private:
69    void applyInternal(Client*, const AnimationValue& from, const AnimationValue& to, float progress);
70    KeyframeValueList m_keyframes;
71    IntSize m_boxSize;
72    RefPtr<Animation> m_animation;
73    String m_name;
74    bool m_listsMatch;
75    double m_startTime;
76    double m_pauseTime;
77    double m_totalRunningTime;
78    double m_lastRefreshedTime;
79    AnimationState m_state;
80};
81
82class GraphicsLayerAnimations {
83public:
84    GraphicsLayerAnimations() { }
85
86    void add(const GraphicsLayerAnimation&);
87    void remove(const String& name);
88    void remove(const String& name, AnimatedPropertyID);
89    void pause(const String&, double);
90    void suspend(double);
91    void resume();
92    void apply(GraphicsLayerAnimation::Client*);
93    bool isEmpty() const { return m_animations.isEmpty(); }
94    size_t size() const { return m_animations.size(); }
95    const Vector<GraphicsLayerAnimation>& animations() const { return m_animations; }
96    Vector<GraphicsLayerAnimation>& animations() { return m_animations; }
97
98    bool hasRunningAnimations() const;
99    bool hasActiveAnimationsOfType(AnimatedPropertyID type) const;
100
101    GraphicsLayerAnimations getActiveAnimations() const;
102
103private:
104    Vector<GraphicsLayerAnimation> m_animations;
105};
106
107}
108#endif
109
110#endif // GraphicsLayerAnimation_h
111