78 lines
2.7 KiB
C++
78 lines
2.7 KiB
C++
/*
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* Copyright (C) 2020 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "ReducedResolutionSeconds.h"
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#include "Timer.h"
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#include <wtf/CancellableTask.h>
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#include <wtf/Markable.h>
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#include <wtf/Seconds.h>
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#include <wtf/WeakHashSet.h>
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namespace WebCore {
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class CSSTransition;
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class Document;
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class DocumentTimeline;
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class WebAnimation;
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class DocumentTimelinesController {
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WTF_MAKE_FAST_ALLOCATED;
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public:
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explicit DocumentTimelinesController(Document&);
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~DocumentTimelinesController();
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void addTimeline(DocumentTimeline&);
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void removeTimeline(DocumentTimeline&);
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void detachFromDocument();
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void updateAnimationsAndSendEvents(ReducedResolutionSeconds);
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std::optional<Seconds> currentTime();
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WEBCORE_EXPORT void suspendAnimations();
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WEBCORE_EXPORT void resumeAnimations();
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WEBCORE_EXPORT bool animationsAreSuspended() const;
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private:
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struct AnimationsToProcess {
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Vector<RefPtr<WebAnimation>> animationsToRemove;
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Vector<RefPtr<CSSTransition>> completedTransitions;
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};
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ReducedResolutionSeconds liveCurrentTime() const;
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void cacheCurrentTime(ReducedResolutionSeconds);
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void maybeClearCachedCurrentTime();
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WeakHashSet<DocumentTimeline> m_timelines;
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TaskCancellationGroup m_currentTimeClearingTaskCancellationGroup;
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Document& m_document;
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Markable<Seconds, Seconds::MarkableTraits> m_cachedCurrentTime;
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bool m_isSuspended { false };
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bool m_waitingOnVMIdle { false };
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};
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} // namespace WebCore
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