1/*
2 * Copyright (C) 2007 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1.  Redistributions of source code must retain the above copyright
9 *     notice, this list of conditions and the following disclaimer.
10 * 2.  Redistributions in binary form must reproduce the above copyright
11 *     notice, this list of conditions and the following disclaimer in the
12 *     documentation and/or other materials provided with the distribution.
13 * 3.  Neither the name of Apple Inc. ("Apple") nor the names of
14 *     its contributors may be used to endorse or promote products derived
15 *     from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef CompositeAnimation_h
30#define CompositeAnimation_h
31
32#include "ImplicitAnimation.h"
33#include "KeyframeAnimation.h"
34#include <wtf/HashMap.h>
35#include <wtf/Noncopyable.h>
36#include <wtf/text/AtomicString.h>
37
38namespace WebCore {
39
40class AnimationControllerPrivate;
41class AnimationController;
42class RenderElement;
43class RenderStyle;
44
45// A CompositeAnimation represents a collection of animations that are running
46// on a single RenderElement, such as a number of properties transitioning at once.
47class CompositeAnimation : public RefCounted<CompositeAnimation> {
48public:
49    static PassRefPtr<CompositeAnimation> create(AnimationControllerPrivate* animationController)
50    {
51        return adoptRef(new CompositeAnimation(animationController));
52    };
53
54    ~CompositeAnimation();
55
56    void clearRenderer();
57
58    PassRef<RenderStyle> animate(RenderElement&, RenderStyle* currentStyle, RenderStyle& targetStyle);
59    PassRefPtr<RenderStyle> getAnimatedStyle() const;
60
61    double timeToNextService() const;
62
63    AnimationControllerPrivate* animationController() const { return m_animationController; }
64
65    void suspendAnimations();
66    void resumeAnimations();
67    bool isSuspended() const { return m_suspended; }
68
69    bool hasAnimations() const  { return !m_transitions.isEmpty() || !m_keyframeAnimations.isEmpty(); }
70
71    bool isAnimatingProperty(CSSPropertyID, bool acceleratedOnly, AnimationBase::RunningState) const;
72
73    PassRefPtr<KeyframeAnimation> getAnimationForProperty(CSSPropertyID) const;
74
75    void overrideImplicitAnimations(CSSPropertyID);
76    void resumeOverriddenImplicitAnimations(CSSPropertyID);
77
78    bool pauseAnimationAtTime(const AtomicString& name, double t);
79    bool pauseTransitionAtTime(CSSPropertyID, double);
80    unsigned numberOfActiveAnimations() const;
81
82private:
83    CompositeAnimation(AnimationControllerPrivate*);
84
85    void updateTransitions(RenderElement*, RenderStyle* currentStyle, RenderStyle* targetStyle);
86    void updateKeyframeAnimations(RenderElement*, RenderStyle* currentStyle, RenderStyle* targetStyle);
87
88    typedef HashMap<int, RefPtr<ImplicitAnimation>> CSSPropertyTransitionsMap;
89    typedef HashMap<AtomicStringImpl*, RefPtr<KeyframeAnimation>>  AnimationNameMap;
90
91    AnimationControllerPrivate* m_animationController;
92    CSSPropertyTransitionsMap m_transitions;
93    AnimationNameMap m_keyframeAnimations;
94    Vector<AtomicStringImpl*> m_keyframeAnimationOrderMap;
95    bool m_suspended;
96};
97
98} // namespace WebCore
99
100#endif // CompositeAnimation_h
101