| /* |
| * 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 "CSSPropertyAnimation.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; |
| |
| if (m_effects.size() > 1 && effect.preventsAcceleration()) |
| stopAcceleratedAnimations(); |
| |
| return true; |
| } |
| |
| void KeyframeEffectStack::removeEffect(KeyframeEffect& effect) |
| { |
| auto removedEffect = m_effects.removeFirst(&effect); |
| if (removedEffect && !m_effects.isEmpty() && !effect.canBeAccelerated()) |
| startAcceleratedAnimationsIfPossible(); |
| } |
| |
| 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& previousStyle = previousLastStyleChangeEventStyle ? *previousLastStyleChangeEventStyle : RenderStyle::defaultStyle(); |
| |
| auto transformRelatedPropertyChanged = [&]() -> bool { |
| return !arePointingToEqualData(targetStyle.translate(), previousStyle.translate()) |
| || !arePointingToEqualData(targetStyle.scale(), previousStyle.scale()) |
| || !arePointingToEqualData(targetStyle.rotate(), previousStyle.rotate()) |
| || targetStyle.transform() != previousStyle.transform(); |
| }(); |
| |
| auto fontSizeChanged = previousLastStyleChangeEventStyle && previousLastStyleChangeEventStyle->computedFontSize() != targetStyle.computedFontSize(); |
| auto propertyAffectingLogicalPropertiesChanged = previousLastStyleChangeEventStyle && (previousLastStyleChangeEventStyle->direction() != targetStyle.direction() || previousLastStyleChangeEventStyle->writingMode() != targetStyle.writingMode()); |
| |
| auto unanimatedStyle = RenderStyle::clone(targetStyle); |
| |
| for (const auto& effect : sortedEffects()) { |
| ASSERT(effect->animation()); |
| |
| auto inheritedPropertyChanged = [&]() { |
| if (previousLastStyleChangeEventStyle) { |
| for (auto property : effect->inheritedProperties()) { |
| if (!CSSPropertyAnimation::propertiesEqual(property, *previousLastStyleChangeEventStyle, targetStyle)) |
| return true; |
| } |
| } |
| return false; |
| }; |
| |
| if (propertyAffectingLogicalPropertiesChanged || fontSizeChanged || inheritedPropertyChanged()) |
| effect->propertyAffectingKeyframeResolutionDidChange(unanimatedStyle, resolutionContext); |
| |
| 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::clearInvalidCSSAnimationNames() |
| { |
| m_invalidCSSAnimationNames.clear(); |
| } |
| |
| bool KeyframeEffectStack::hasInvalidCSSAnimationNames() const |
| { |
| return !m_invalidCSSAnimationNames.isEmpty(); |
| } |
| |
| bool KeyframeEffectStack::containsInvalidCSSAnimationName(const String& name) const |
| { |
| return m_invalidCSSAnimationNames.contains(name); |
| } |
| |
| void KeyframeEffectStack::addInvalidCSSAnimationName(const String& name) |
| { |
| m_invalidCSSAnimationNames.add(name); |
| } |
| |
| void KeyframeEffectStack::effectAbilityToBeAcceleratedDidChange(const KeyframeEffect& effect) |
| { |
| ASSERT(m_effects.contains(&effect)); |
| if (effect.preventsAcceleration()) |
| stopAcceleratedAnimations(); |
| else |
| startAcceleratedAnimationsIfPossible(); |
| } |
| |
| bool KeyframeEffectStack::allowsAcceleration() const |
| { |
| // We could try and be a lot smarter here and do this on a per-property basis and |
| // account for fully replacing effects which could co-exist with effects that |
| // don't support acceleration lower in the stack, etc. But, if we are not able to run |
| // all effects that could support acceleration using acceleration, then we might |
| // as well not run any at all since we'll be updating effects for this stack |
| // for each animation frame. So for now, we simply return false if any effect in the |
| // stack is unable to be accelerated. |
| for (auto& effect : m_effects) { |
| if (effect->preventsAcceleration()) |
| return false; |
| } |
| return true; |
| } |
| |
| void KeyframeEffectStack::startAcceleratedAnimationsIfPossible() |
| { |
| if (!allowsAcceleration()) |
| return; |
| |
| for (auto& effect : m_effects) |
| effect->effectStackNoLongerPreventsAcceleration(); |
| } |
| |
| void KeyframeEffectStack::stopAcceleratedAnimations() |
| { |
| for (auto& effect : m_effects) |
| effect->effectStackNoLongerAllowsAcceleration(); |
| } |
| |
| void KeyframeEffectStack::lastStyleChangeEventStyleDidChange(const RenderStyle* previousStyle, const RenderStyle* currentStyle) |
| { |
| for (auto& effect : m_effects) |
| effect->lastStyleChangeEventStyleDidChange(previousStyle, currentStyle); |
| } |
| |
| } // namespace WebCore |