text: /*
   * Copyright (C) 2007 Apple Inc. All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1.  Redistributions of source code must retain the above copyright
   *     notice, this list of conditions and the following disclaimer. 
   * 2.  Redistributions in binary form must reproduce the above copyright
   *     notice, this list of conditions and the following disclaimer in the
   *     documentation and/or other materials provided with the distribution. 
   * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
   *     its contributors may be used to endorse or promote products derived
   *     from this software without specific prior written permission. 
   *
   * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
   * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
   * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #ifndef CompositeAnimation_h
  #define CompositeAnimation_h
  
  #include "AtomicString.h"
  
  #include "ImplicitAnimation.h"
  #include "KeyframeAnimation.h"
  #include <wtf/HashMap.h>
  #include <wtf/Noncopyable.h>
  
  namespace WebCore {
  
  class AnimationControllerPrivate;
  class AnimationController;
  class RenderObject;
  class RenderStyle;
  
  // A CompositeAnimation represents a collection of animations that are running
  // on a single RenderObject, such as a number of properties transitioning at once.
  class CompositeAnimation : public RefCounted<CompositeAnimation> {
  public:
      static PassRefPtr<CompositeAnimation> create(AnimationControllerPrivate* animationController)
      {
          return adoptRef(new CompositeAnimation(animationController));
      };
  
      ~CompositeAnimation();
      
      void clearRenderer();
  
      PassRefPtr<RenderStyle> animate(RenderObject*, RenderStyle* currentStyle, RenderStyle* targetStyle);
      PassRefPtr<RenderStyle> getAnimatedStyle() const;
  
      double timeToNextService() const;
      
      AnimationControllerPrivate* animationController() const { return m_animationController; }
  
      void suspendAnimations();
      void resumeAnimations();
      bool isSuspended() const { return m_isSuspended; }
      
      bool hasAnimations() const  { return !m_transitions.isEmpty() || !m_keyframeAnimations.isEmpty(); }
  
      void setAnimating(bool);
      bool isAnimatingProperty(int property, bool isRunningNow) const;
      
      PassRefPtr<KeyframeAnimation> getAnimationForProperty(int property) const;
  
      void overrideImplicitAnimations(int property);
      void resumeOverriddenImplicitAnimations(int property);
  
      bool pauseAnimationAtTime(const AtomicString& name, double t);
      bool pauseTransitionAtTime(int property, double t);
      unsigned numberOfActiveAnimations() const;
  
  private:
      CompositeAnimation(AnimationControllerPrivate* animationController)
          : m_animationController(animationController)
          , m_numStyleAvailableWaiters(0)
          , m_isSuspended(false)
      {
      }
  
      void updateTransitions(RenderObject*, RenderStyle* currentStyle, RenderStyle* targetStyle);
      void updateKeyframeAnimations(RenderObject*, RenderStyle* currentStyle, RenderStyle* targetStyle);
      
      typedef HashMap<int, RefPtr<ImplicitAnimation> > CSSPropertyTransitionsMap;
      typedef HashMap<AtomicStringImpl*, RefPtr<KeyframeAnimation> >  AnimationNameMap;
  
      AnimationControllerPrivate* m_animationController;
      CSSPropertyTransitionsMap m_transitions;
      AnimationNameMap m_keyframeAnimations;
      Vector<AtomicStringImpl*> m_keyframeAnimationOrderMap;
      unsigned m_numStyleAvailableWaiters;
      bool m_isSuspended;
  };
  
  } // namespace WebCore
  
  #endif // CompositeAnimation_h
  