/*

 * Copyright (C) 2009 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 AnimationControllerPrivate_h

#define AnimationControllerPrivate_h

#include "AtomicString.h"

#include "CSSPropertyNames.h"

#include "PlatformString.h"

#include "Timer.h"

#include <wtf/HashMap.h>

#include <wtf/PassRefPtr.h>

#include <wtf/RefPtr.h>

#include <wtf/Vector.h>

namespace WebCore {

class AnimationBase;

class CompositeAnimation;

class Document;

class Element;

class Frame;

class Node;

class RenderObject;

class RenderStyle;

class AnimationControllerPrivate : public Noncopyable {

public:

    AnimationControllerPrivate(Frame*);

    ~AnimationControllerPrivate();

    PassRefPtr<CompositeAnimation> accessCompositeAnimation(RenderObject*);

    bool clear(RenderObject*);

    void animationTimerFired(Timer<AnimationControllerPrivate>*);

    void updateAnimationTimer(bool callSetChanged = false);

    void updateStyleIfNeededDispatcherFired(Timer<AnimationControllerPrivate>*);

    void startUpdateStyleIfNeededDispatcher();

    void addEventToDispatch(PassRefPtr<Element> element, const AtomicString& eventType, const String& name, double elapsedTime);

    void addNodeChangeToDispatch(PassRefPtr<Node>);

    bool hasAnimations() const { return !m_compositeAnimations.isEmpty(); }

    void suspendAnimations(Document*);

    void resumeAnimations(Document*);

    bool isRunningAnimationOnRenderer(RenderObject*, CSSPropertyID, bool isRunningNow) const;

    bool isRunningAcceleratedAnimationOnRenderer(RenderObject*, CSSPropertyID, bool isRunningNow) const;

    bool pauseAnimationAtTime(RenderObject*, const String& name, double t);

    bool pauseTransitionAtTime(RenderObject*, const String& property, double t);

    unsigned numberOfActiveAnimations() const;

    PassRefPtr<RenderStyle> getAnimatedStyleForRenderer(RenderObject* renderer);

    double beginAnimationUpdateTime();

    void setBeginAnimationUpdateTime(double t) { m_beginAnimationUpdateTime = t; }

    void endAnimationUpdate();

    void receivedStartTimeResponse(double);

    void addToStyleAvailableWaitList(AnimationBase*);

    void removeFromStyleAvailableWaitList(AnimationBase*);    

    void addToStartTimeResponseWaitList(AnimationBase*, bool willGetResponse);

    void removeFromStartTimeResponseWaitList(AnimationBase*);    

    void startTimeResponse(double t);

private:

    void styleAvailable();

    void fireEventsAndUpdateStyle();

    typedef HashMap<RenderObject*, RefPtr<CompositeAnimation> > RenderObjectAnimationMap;

    RenderObjectAnimationMap m_compositeAnimations;

    Timer<AnimationControllerPrivate> m_animationTimer;

    Timer<AnimationControllerPrivate> m_updateStyleIfNeededDispatcher;

    Frame* m_frame;

    class EventToDispatch {

    public:

        RefPtr<Element> element;

        AtomicString eventType;

        String name;

        double elapsedTime;

    };

    Vector<EventToDispatch> m_eventsToDispatch;

    Vector<RefPtr<Node> > m_nodeChangesToDispatch;

    double m_beginAnimationUpdateTime;

    AnimationBase* m_styleAvailableWaiters;

    AnimationBase* m_lastStyleAvailableWaiter;

    AnimationBase* m_responseWaiters;

    AnimationBase* m_lastResponseWaiter;

    bool m_waitingForResponse;

};

} // namespace WebCore

#endif // AnimationControllerPrivate_h