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/*
* 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 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 KeyframeAnimation_h
#define KeyframeAnimation_h
#include "AnimationBase.h"
#include "Document.h"
#include "KeyframeList.h"
namespace WebCore {
class RenderStyle;
// A KeyframeAnimation tracks the state of an explicit animation for a single RenderElement.
class KeyframeAnimation final : public AnimationBase {
public:
static RefPtr<KeyframeAnimation> create(const Animation& animation, RenderElement* renderer, int index, CompositeAnimation* compositeAnimation, RenderStyle* unanimatedStyle)
{
return adoptRef(new KeyframeAnimation(animation, renderer, index, compositeAnimation, unanimatedStyle));
}
virtual void animate(CompositeAnimation*, RenderElement*, const RenderStyle* currentStyle, RenderStyle* targetStyle, RefPtr<RenderStyle>& animatedStyle) override;
virtual void getAnimatedStyle(RefPtr<RenderStyle>&) override;
const KeyframeList& keyframes() const { return m_keyframes; }
const AtomicString& name() const { return m_keyframes.animationName(); }
int index() const { return m_index; }
void setIndex(int i) { m_index = i; }
bool hasAnimationForProperty(CSSPropertyID) const;
void setUnanimatedStyle(PassRefPtr<RenderStyle> style) { m_unanimatedStyle = style; }
RenderStyle* unanimatedStyle() const { return m_unanimatedStyle.get(); }
virtual double timeToNextService() override;
protected:
virtual void onAnimationStart(double elapsedTime) override;
virtual void onAnimationIteration(double elapsedTime) override;
virtual void onAnimationEnd(double elapsedTime) override;
virtual bool startAnimation(double timeOffset) override;
virtual void pauseAnimation(double timeOffset) override;
virtual void endAnimation() override;
virtual void overrideAnimations() override;
virtual void resumeOverriddenAnimations() override;
bool shouldSendEventForListener(Document::ListenerType inListenerType) const;
bool sendAnimationEvent(const AtomicString&, double elapsedTime);
virtual bool affectsProperty(CSSPropertyID) const override;
void validateTransformFunctionList();
void checkForMatchingFilterFunctionLists();
private:
KeyframeAnimation(const Animation&, RenderElement*, int index, CompositeAnimation*, RenderStyle* unanimatedStyle);
virtual ~KeyframeAnimation();
// Get the styles for the given property surrounding the current animation time and the progress between them.
void fetchIntervalEndpointsForProperty(CSSPropertyID, const RenderStyle*& fromStyle, const RenderStyle*& toStyle, double& progress) const;
// The keyframes that we are blending.
KeyframeList m_keyframes;
// The order in which this animation appears in the animation-name style.
int m_index;
bool m_startEventDispatched;
// The style just before we started animation
RefPtr<RenderStyle> m_unanimatedStyle;
};
} // namespace WebCore
#endif // KeyframeAnimation_h
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