/*
 * 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. 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

#if ENABLE(THREADED_ANIMATION_RESOLUTION)

#include "AcceleratedEffect.h"
#include <wtf/HashSet.h>
#include <wtf/Seconds.h>

namespace WebCore {

class Document;
class Element;
struct Styleable;

DECLARE_ALLOCATOR_WITH_HEAP_IDENTIFIER(AcceleratedTimeline);
class AcceleratedTimeline {
    WTF_MAKE_FAST_ALLOCATED_WITH_HEAP_IDENTIFIER(AcceleratedTimeline);
public:
    AcceleratedTimeline(Document&);

    void updateEffectStacks();
    void updateEffectStackForTarget(const Styleable&);
    
    Seconds timeOrigin() const { return m_timeOrigin; }
    
protected:
    
private:
    using HashedStyleable = std::pair<Element*, std::optional<Style::PseudoElementIdentifier>>;
    HashSet<HashedStyleable> m_targetsPendingUpdate;
    Seconds m_timeOrigin;
};

} // namespace WebCore

#endif // ENABLE(THREADED_ANIMATION_RESOLUTION)
