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/*
* Copyright (C) 2019 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 "AnimationList.h"
#include "CSSPropertyNames.h"
#include "WebAnimationTypes.h"
#include <wtf/Vector.h>
#include <wtf/WeakPtr.h>
namespace WebCore {
class Document;
class KeyframeEffect;
class RenderStyle;
namespace Style {
struct ResolutionContext;
}
class KeyframeEffectStack {
WTF_MAKE_FAST_ALLOCATED;
public:
explicit KeyframeEffectStack();
~KeyframeEffectStack();
bool addEffect(KeyframeEffect&);
void removeEffect(KeyframeEffect&);
bool hasEffects() const { return !m_effects.isEmpty(); }
Vector<WeakPtr<KeyframeEffect>> sortedEffects();
const AnimationList* cssAnimationList() const { return m_cssAnimationList.get(); }
void setCSSAnimationList(RefPtr<const AnimationList>&&);
bool containsProperty(CSSPropertyID) const;
bool isCurrentlyAffectingProperty(CSSPropertyID) const;
bool requiresPseudoElement() const;
OptionSet<AnimationImpact> applyKeyframeEffects(RenderStyle& targetStyle, HashSet<AnimatableProperty>& affectedProperties, const RenderStyle* previousLastStyleChangeEventStyle, const Style::ResolutionContext&);
bool hasEffectWithImplicitKeyframes() const;
void effectAbilityToBeAcceleratedDidChange(const KeyframeEffect&);
bool allowsAcceleration() const;
void clearInvalidCSSAnimationNames();
bool hasInvalidCSSAnimationNames() const;
bool containsInvalidCSSAnimationName(const String&) const;
void addInvalidCSSAnimationName(const String&);
void lastStyleChangeEventStyleDidChange(const RenderStyle* previousStyle, const RenderStyle* currentStyle);
void cascadeDidOverrideProperties(const HashSet<AnimatableProperty>&, const Document&);
const HashSet<AnimatableProperty>& acceleratedPropertiesOverriddenByCascade() const { return m_acceleratedPropertiesOverriddenByCascade; }
void applyPendingAcceleratedActions() const;
private:
void ensureEffectsAreSorted();
bool hasMatchingEffect(const Function<bool(const KeyframeEffect&)>&) const;
void startAcceleratedAnimationsIfPossible();
void stopAcceleratedAnimations();
Vector<WeakPtr<KeyframeEffect>> m_effects;
HashSet<String> m_invalidCSSAnimationNames;
HashSet<AnimatableProperty> m_acceleratedPropertiesOverriddenByCascade;
RefPtr<const AnimationList> m_cssAnimationList;
bool m_isSorted { true };
};
} // namespace WebCore
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