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/*
* Copyright (C) 2020 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 "FrameRateAligner.h"
#include "ReducedResolutionSeconds.h"
#include "Timer.h"
#include <wtf/CancellableTask.h>
#include <wtf/CheckedRef.h>
#include <wtf/Markable.h>
#include <wtf/Seconds.h>
#include <wtf/WeakHashSet.h>
namespace WebCore {
class AnimationTimeline;
class Document;
class WeakPtrImplWithEventTargetData;
class WebAnimation;
#if ENABLE(THREADED_ANIMATION_RESOLUTION)
class AcceleratedEffectStackUpdater;
#endif
DECLARE_ALLOCATOR_WITH_HEAP_IDENTIFIER(AnimationTimelinesController);
class AnimationTimelinesController final : public CanMakeCheckedPtr<AnimationTimelinesController> {
WTF_MAKE_FAST_ALLOCATED_WITH_HEAP_IDENTIFIER(AnimationTimelinesController);
WTF_OVERRIDE_DELETE_FOR_CHECKED_PTR(AnimationTimelinesController);
public:
explicit AnimationTimelinesController(Document&);
~AnimationTimelinesController();
void addTimeline(AnimationTimeline&);
void removeTimeline(AnimationTimeline&);
void detachFromDocument();
void updateAnimationsAndSendEvents(ReducedResolutionSeconds);
std::optional<Seconds> currentTime();
std::optional<FramesPerSecond> maximumAnimationFrameRate() const { return m_frameRateAligner.maximumFrameRate(); }
std::optional<Seconds> timeUntilNextTickForAnimationsWithFrameRate(FramesPerSecond) const;
WEBCORE_EXPORT void suspendAnimations();
WEBCORE_EXPORT void resumeAnimations();
bool animationsAreSuspended() const { return m_isSuspended; }
#if ENABLE(THREADED_ANIMATION_RESOLUTION)
AcceleratedEffectStackUpdater* existingAcceleratedEffectStackUpdater() const { return m_acceleratedEffectStackUpdater.get(); }
AcceleratedEffectStackUpdater& acceleratedEffectStackUpdater();
#endif
private:
ReducedResolutionSeconds liveCurrentTime() const;
void cacheCurrentTime(ReducedResolutionSeconds);
void maybeClearCachedCurrentTime();
bool isPendingTimelineAttachment(const WebAnimation&) const;
Ref<Document> protectedDocument() const { return m_document.get(); }
#if ENABLE(THREADED_ANIMATION_RESOLUTION)
std::unique_ptr<AcceleratedEffectStackUpdater> m_acceleratedEffectStackUpdater;
#endif
UncheckedKeyHashMap<FramesPerSecond, ReducedResolutionSeconds> m_animationFrameRateToLastTickTimeMap;
WeakHashSet<AnimationTimeline> m_timelines;
TaskCancellationGroup m_currentTimeClearingTaskCancellationGroup;
WeakRef<Document, WeakPtrImplWithEventTargetData> m_document;
FrameRateAligner m_frameRateAligner;
Markable<Seconds, Seconds::MarkableTraits> m_cachedCurrentTime;
bool m_isSuspended { false };
bool m_waitingOnVMIdle { false };
};
} // namespace WebCore
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