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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.
*/
#include "config.h"
#include "KeyframeEffectStack.h"
#include "CSSAnimation.h"
#include "CSSTransition.h"
#include "KeyframeEffect.h"
#include "WebAnimation.h"
#include "WebAnimationUtilities.h"
#include <wtf/PointerComparison.h>
namespace WebCore {
KeyframeEffectStack::KeyframeEffectStack()
{
}
KeyframeEffectStack::~KeyframeEffectStack()
{
}
bool KeyframeEffectStack::addEffect(KeyframeEffect& effect)
{
// To qualify for membership in an effect stack, an effect must have a target, an animation, a timeline and be relevant.
// This method will be called in WebAnimation and KeyframeEffect as those properties change.
if (!effect.targetStyleable() || !effect.animation() || !effect.animation()->timeline() || !effect.animation()->isRelevant())
return false;
effect.invalidate();
m_effects.append(effect);
m_isSorted = false;
return true;
}
void KeyframeEffectStack::removeEffect(KeyframeEffect& effect)
{
m_effects.removeFirst(&effect);
}
bool KeyframeEffectStack::requiresPseudoElement() const
{
for (auto& effect : m_effects) {
if (effect->requiresPseudoElement())
return true;
}
return false;
}
bool KeyframeEffectStack::hasEffectWithImplicitKeyframes() const
{
for (auto& effect : m_effects) {
if (effect->hasImplicitKeyframes())
return true;
}
return false;
}
bool KeyframeEffectStack::isCurrentlyAffectingProperty(CSSPropertyID property) const
{
for (auto& effect : m_effects) {
if (effect->isCurrentlyAffectingProperty(property) || effect->isRunningAcceleratedAnimationForProperty(property))
return true;
}
return false;
}
Vector<WeakPtr<KeyframeEffect>> KeyframeEffectStack::sortedEffects()
{
ensureEffectsAreSorted();
return m_effects;
}
void KeyframeEffectStack::ensureEffectsAreSorted()
{
if (m_isSorted || m_effects.size() < 2)
return;
std::stable_sort(m_effects.begin(), m_effects.end(), [&](auto& lhs, auto& rhs) {
RELEASE_ASSERT(lhs.get());
RELEASE_ASSERT(rhs.get());
auto* lhsAnimation = lhs->animation();
auto* rhsAnimation = rhs->animation();
RELEASE_ASSERT(lhsAnimation);
RELEASE_ASSERT(rhsAnimation);
return compareAnimationsByCompositeOrder(*lhsAnimation, *rhsAnimation);
});
m_isSorted = true;
}
void KeyframeEffectStack::setCSSAnimationList(RefPtr<const AnimationList>&& cssAnimationList)
{
m_cssAnimationList = WTFMove(cssAnimationList);
// Since the list of animation names has changed, the sorting order of the animation effects may have changed as well.
m_isSorted = false;
}
OptionSet<AnimationImpact> KeyframeEffectStack::applyKeyframeEffects(RenderStyle& targetStyle, const RenderStyle& previousLastStyleChangeEventStyle, const Style::ResolutionContext& resolutionContext)
{
OptionSet<AnimationImpact> impact;
auto transformRelatedPropertyChanged = [&]() -> bool {
return !arePointingToEqualData(targetStyle.translate(), previousLastStyleChangeEventStyle.translate())
|| !arePointingToEqualData(targetStyle.scale(), previousLastStyleChangeEventStyle.scale())
|| !arePointingToEqualData(targetStyle.rotate(), previousLastStyleChangeEventStyle.rotate())
|| targetStyle.transform() != previousLastStyleChangeEventStyle.transform();
}();
for (const auto& effect : sortedEffects()) {
ASSERT(effect->animation());
effect->animation()->resolve(targetStyle, resolutionContext);
if (effect->isRunningAccelerated() || effect->isAboutToRunAccelerated())
impact.add(AnimationImpact::RequiresRecomposite);
if (effect->triggersStackingContext())
impact.add(AnimationImpact::ForcesStackingContext);
if (transformRelatedPropertyChanged && effect->isRunningAcceleratedTransformRelatedAnimation())
effect->transformRelatedPropertyDidChange();
}
return impact;
}
void KeyframeEffectStack::stopAcceleratingTransformRelatedProperties(UseAcceleratedAction useAcceleratedAction)
{
for (auto& effect : m_effects)
effect->stopAcceleratingTransformRelatedProperties(useAcceleratedAction);
}
} // namespace WebCore