Home | History | Annotate | Download | only in animation 
      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 Computer, 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 "core/frame/animation/ImplicitAnimation.h"
     33 #include "core/frame/animation/KeyframeAnimation.h"
     34 #include "wtf/HashMap.h"
     35 
     36 namespace WebCore {
     37 
     38 class AnimationControllerPrivate;
     39 class AnimationController;
     40 class RenderObject;
     41 class RenderStyle;
     42 
     43 // A CompositeAnimation represents a collection of animations that are running
     44 // on a single RenderObject, such as a number of properties transitioning at once.
     45 class CompositeAnimation : public RefCounted<CompositeAnimation> {
     46 public:
     47     static PassRefPtr<CompositeAnimation> create(AnimationControllerPrivate* animationController)
     48     {
     49         return adoptRef(new CompositeAnimation(animationController));
     50     };
     51 
     52     ~CompositeAnimation();
     53 
     54     void clearRenderer();
     55 
     56     PassRefPtr<RenderStyle> animate(RenderObject&, RenderStyle* currentStyle, RenderStyle& targetStyle);
     57     PassRefPtr<RenderStyle> getAnimatedStyle() const;
     58 
     59     double timeToNextService() const;
     60     double timeToNextEvent() const;
     61 
     62     AnimationControllerPrivate* animationController() const { return m_animationController; }
     63 
     64     bool hasAnimations() const  { return !m_transitions.isEmpty() || !m_keyframeAnimations.isEmpty(); }
     65 
     66     bool isAnimatingProperty(CSSPropertyID, bool acceleratedOnly, bool isRunningNow) const;
     67 
     68     PassRefPtr<KeyframeAnimation> getAnimationForProperty(CSSPropertyID) const;
     69 
     70     void overrideImplicitAnimations(CSSPropertyID);
     71     void resumeOverriddenImplicitAnimations(CSSPropertyID);
     72 
     73     void pauseAnimationsForTesting(double t);
     74     unsigned numberOfActiveAnimations() const;
     75 
     76 private:
     77     CompositeAnimation(AnimationControllerPrivate* animationController)
     78         : m_animationController(animationController)
     79     {
     80     }
     81 
     82     void updateTransitions(RenderObject&, RenderStyle* currentStyle, RenderStyle& targetStyle);
     83     void updateKeyframeAnimations(RenderObject&, RenderStyle* currentStyle, RenderStyle& targetStyle);
     84 
     85     typedef HashMap<int, RefPtr<ImplicitAnimation> > CSSPropertyTransitionsMap;
     86     typedef HashMap<AtomicString, RefPtr<KeyframeAnimation> > AnimationNameMap;
     87 
     88     AnimationControllerPrivate* m_animationController;
     89     CSSPropertyTransitionsMap m_transitions;
     90     AnimationNameMap m_keyframeAnimations;
     91     Vector<AtomicString> m_keyframeAnimationOrderList;
     92 };
     93 
     94 } // namespace WebCore
     95 
     96 #endif // CompositeAnimation_h
     97