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/*
* Copyright (C) 2023 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. ``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
* 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 "AnimationTimeline.h"
#include "ScrollAxis.h"
#include "ScrollTimelineOptions.h"
#include <wtf/Ref.h>
#include <wtf/WeakPtr.h>
namespace WebCore {
class CSSScrollValue;
class Element;
class ScrollTimeline : public AnimationTimeline {
public:
static Ref<ScrollTimeline> create(ScrollTimelineOptions&& = { });
static Ref<ScrollTimeline> create(const AtomString&, ScrollAxis);
static Ref<ScrollTimeline> createFromCSSValue(const CSSScrollValue&);
Element* source() const { return m_source.get(); }
ScrollAxis axis() const { return m_axis; }
void setAxis(ScrollAxis axis) { m_axis = axis; }
const AtomString& name() const { return m_name; }
void setName(const AtomString& name) { m_name = name; }
virtual Ref<CSSValue> toCSSValue() const;
protected:
explicit ScrollTimeline(const AtomString&, ScrollAxis);
private:
enum class Scroller : uint8_t { Nearest, Root, Self };
explicit ScrollTimeline(ScrollTimelineOptions&& = { });
explicit ScrollTimeline(Scroller, ScrollAxis);
bool isScrollTimeline() const final { return true; }
WeakPtr<Element, WeakPtrImplWithEventTargetData> m_source;
ScrollAxis m_axis { ScrollAxis::Block };
AtomString m_name;
Scroller m_scroller { Scroller::Nearest };
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_ANIMATION_TIMELINE(ScrollTimeline, isScrollTimeline())
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