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/*
* Copyright (C) 2025 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_ANIMATIONS)
#include "ProgressResolutionData.h"
#include "TimelineIdentifier.h"
#include <wtf/Seconds.h>
#include <wtf/TZoneMalloc.h>
#include <wtf/Variant.h>
namespace WebCore {
class AcceleratedTimeline : public RefCounted<AcceleratedTimeline> {
WTF_MAKE_TZONE_ALLOCATED(AcceleratedTimeline);
public:
static Ref<AcceleratedTimeline> create(const TimelineIdentifier&, Seconds originTime);
static Ref<AcceleratedTimeline> create(const TimelineIdentifier&, ProgressResolutionData);
bool isMonotonic() const { return !!originTime(); }
bool isProgressBased() const { return !isMonotonic(); }
WEBCORE_EXPORT std::optional<Seconds> originTime() const;
WEBCORE_EXPORT std::optional<ProgressResolutionData> progressResolutionData() const;
// Encoding support.
using Data = Variant<Seconds, ProgressResolutionData>;
WEBCORE_EXPORT static Ref<AcceleratedTimeline> create(TimelineIdentifier&&, Data&&);
const TimelineIdentifier& identifier() const { return m_identifier; }
const Data& data() const { return m_data; }
virtual ~AcceleratedTimeline() = default;
private:
AcceleratedTimeline(const TimelineIdentifier&, Seconds originTime);
AcceleratedTimeline(const TimelineIdentifier&, ProgressResolutionData);
AcceleratedTimeline(TimelineIdentifier&&, Data&&);
TimelineIdentifier m_identifier;
Data m_data;
};
} // namespace WebCore
#endif // ENABLE(THREADED_ANIMATIONS)
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