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/*
* Copyright (C) 2016 Igalia S.L.
* Copyright (C) 2021 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. 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 INC. 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.
*/
#pragma once
#include "ScrollAnimation.h"
namespace WebCore {
class FloatPoint;
class TimingFunction;
class ScrollAnimationSmooth final: public ScrollAnimation {
public:
ScrollAnimationSmooth(ScrollAnimationClient&);
virtual ~ScrollAnimationSmooth();
bool startAnimatedScrollToDestination(const FloatPoint& fromOffset, const FloatPoint& destinationOffset);
bool retargetActiveAnimation(const FloatPoint& newOffset) final;
std::optional<FloatPoint> destinationOffset() const final { return m_destinationOffset; }
private:
void updateScrollExtents() final;
void serviceAnimation(MonotonicTime) final;
String debugDescription() const final;
Seconds durationFromDistance(const FloatSize&) const;
bool animateScroll(MonotonicTime);
Seconds m_duration;
FloatPoint m_startOffset;
FloatPoint m_destinationOffset;
RefPtr<TimingFunction> m_timingFunction;
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_SCROLL_ANIMATION(WebCore::ScrollAnimationSmooth, type() == WebCore::ScrollAnimation::Type::Smooth)