| /* |
| * Copyright (C) 2007 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. |
| * 3. Neither the name of Apple Inc. ("Apple") nor the names of |
| * its contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "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 OR ITS 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 "CompositeAnimation.h" |
| |
| #include "AnimationControllerPrivate.h" |
| #include "CSSPropertyAnimation.h" |
| #include "CSSPropertyNames.h" |
| #include "ImplicitAnimation.h" |
| #include "KeyframeAnimation.h" |
| #include "Logging.h" |
| #include "RenderElement.h" |
| #include "RenderStyle.h" |
| #include <wtf/NeverDestroyed.h> |
| #include <wtf/text/CString.h> |
| |
| namespace WebCore { |
| |
| CompositeAnimation::CompositeAnimation(AnimationControllerPrivate& animationController) |
| : m_animationController(animationController) |
| { |
| m_suspended = m_animationController.isSuspended() && !m_animationController.allowsNewAnimationsWhileSuspended(); |
| } |
| |
| CompositeAnimation::~CompositeAnimation() |
| { |
| // Toss the refs to all animations, but make sure we remove them from |
| // any waiting lists first. |
| |
| clearRenderer(); |
| m_transitions.clear(); |
| m_keyframeAnimations.clear(); |
| } |
| |
| void CompositeAnimation::clearRenderer() |
| { |
| if (!m_transitions.isEmpty()) { |
| // Clear the renderers from all running animations, in case we are in the middle of |
| // an animation callback (see https://bugs.webkit.org/show_bug.cgi?id=22052) |
| for (auto& transition : m_transitions.values()) { |
| animationController().animationWillBeRemoved(transition.get()); |
| transition->clear(); |
| } |
| } |
| if (!m_keyframeAnimations.isEmpty()) { |
| m_keyframeAnimations.checkConsistency(); |
| for (auto& animation : m_keyframeAnimations.values()) { |
| animationController().animationWillBeRemoved(animation.get()); |
| animation->clear(); |
| } |
| } |
| } |
| |
| void CompositeAnimation::updateTransitions(RenderElement* renderer, RenderStyle* currentStyle, RenderStyle* targetStyle) |
| { |
| // If currentStyle is null or there are no old or new transitions, just skip it |
| if (!currentStyle || (!targetStyle->transitions() && m_transitions.isEmpty())) |
| return; |
| |
| // Mark all existing transitions as no longer active. We will mark the still active ones |
| // in the next loop and then toss the ones that didn't get marked. |
| for (auto& transition : m_transitions.values()) |
| transition->setActive(false); |
| |
| RefPtr<RenderStyle> modifiedCurrentStyle; |
| |
| // Check to see if we need to update the active transitions |
| if (targetStyle->transitions()) { |
| for (size_t i = 0; i < targetStyle->transitions()->size(); ++i) { |
| Animation& animation = targetStyle->transitions()->animation(i); |
| bool isActiveTransition = !m_suspended && (animation.duration() || animation.delay() > 0); |
| |
| Animation::AnimationMode mode = animation.animationMode(); |
| if (mode == Animation::AnimateNone) |
| continue; |
| |
| CSSPropertyID prop = animation.property(); |
| |
| bool all = mode == Animation::AnimateAll; |
| |
| // Handle both the 'all' and single property cases. For the single prop case, we make only one pass |
| // through the loop. |
| for (int propertyIndex = 0; propertyIndex < CSSPropertyAnimation::getNumProperties(); ++propertyIndex) { |
| if (all) { |
| // Get the next property which is not a shorthand. |
| bool isShorthand; |
| prop = CSSPropertyAnimation::getPropertyAtIndex(propertyIndex, isShorthand); |
| if (isShorthand) |
| continue; |
| } |
| |
| // ImplicitAnimations are always hashed by actual properties, never animateAll. |
| ASSERT(prop >= firstCSSProperty && prop < (firstCSSProperty + numCSSProperties)); |
| |
| // If there is a running animation for this property, the transition is overridden |
| // and we have to use the unanimatedStyle from the animation. We do the test |
| // against the unanimated style here, but we "override" the transition later. |
| RefPtr<KeyframeAnimation> keyframeAnim = getAnimationForProperty(prop); |
| RenderStyle* fromStyle = keyframeAnim ? keyframeAnim->unanimatedStyle() : currentStyle; |
| |
| // See if there is a current transition for this prop |
| ImplicitAnimation* implAnim = m_transitions.get(prop); |
| bool equal = true; |
| |
| if (implAnim) { |
| // If we are post active don't bother setting the active flag. This will cause |
| // this animation to get removed at the end of this function. |
| if (!implAnim->postActive()) |
| implAnim->setActive(true); |
| |
| // This might be a transition that is just finishing. That would be the case |
| // if it were postActive. But we still need to check for equality because |
| // it could be just finishing AND changing to a new goal state. |
| // |
| // This implAnim might also not be an already running transition. It might be |
| // newly added to the list in a previous iteration. This would happen if |
| // you have both an explicit transition-property and 'all' in the same |
| // list. In this case, the latter one overrides the earlier one, so we |
| // behave as though this is a running animation being replaced. |
| if (!implAnim->isTargetPropertyEqual(prop, targetStyle)) { |
| // For accelerated animations we need to return a new RenderStyle with the _current_ value |
| // of the property, so that restarted transitions use the correct starting point. |
| if (CSSPropertyAnimation::animationOfPropertyIsAccelerated(prop) && implAnim->isAccelerated()) { |
| if (!modifiedCurrentStyle) |
| modifiedCurrentStyle = RenderStyle::clone(currentStyle); |
| |
| implAnim->blendPropertyValueInStyle(prop, modifiedCurrentStyle.get()); |
| } |
| LOG(Animations, "Removing existing ImplicitAnimation %p for property %s", implAnim, getPropertyName(prop)); |
| animationController().animationWillBeRemoved(implAnim); |
| m_transitions.remove(prop); |
| equal = false; |
| } |
| } else { |
| // We need to start a transition if it is active and the properties don't match |
| equal = !isActiveTransition || CSSPropertyAnimation::propertiesEqual(prop, fromStyle, targetStyle); |
| } |
| |
| // We can be in this loop with an inactive transition (!isActiveTransition). We need |
| // to do that to check to see if we are canceling a transition. But we don't want to |
| // start one of the inactive transitions. So short circuit that here. (See |
| // <https://bugs.webkit.org/show_bug.cgi?id=24787> |
| if (!equal && isActiveTransition) { |
| // Add the new transition |
| RefPtr<ImplicitAnimation> implicitAnimation = ImplicitAnimation::create(animation, prop, renderer, this, modifiedCurrentStyle ? modifiedCurrentStyle.get() : fromStyle); |
| LOG(Animations, "Created ImplicitAnimation %p on renderer %p for property %s duration %.2f delay %.2f", implicitAnimation.get(), renderer, getPropertyName(prop), animation.duration(), animation.delay()); |
| m_transitions.set(prop, implicitAnimation.release()); |
| } |
| |
| // We only need one pass for the single prop case |
| if (!all) |
| break; |
| } |
| } |
| } |
| |
| // Make a list of transitions to be removed |
| Vector<int> toBeRemoved; |
| for (auto& transition : m_transitions.values()) { |
| if (!transition->active()) { |
| animationController().animationWillBeRemoved(transition.get()); |
| toBeRemoved.append(transition->animatingProperty()); |
| LOG(Animations, "Removing ImplicitAnimation %p from renderer %p for property %s", transition.get(), renderer, getPropertyName(transition->animatingProperty())); |
| } |
| } |
| |
| // Now remove the transitions from the list |
| for (auto propertyToRemove : toBeRemoved) |
| m_transitions.remove(propertyToRemove); |
| } |
| |
| void CompositeAnimation::updateKeyframeAnimations(RenderElement* renderer, RenderStyle* currentStyle, RenderStyle* targetStyle) |
| { |
| // Nothing to do if we don't have any animations, and didn't have any before |
| if (m_keyframeAnimations.isEmpty() && !targetStyle->hasAnimations()) |
| return; |
| |
| m_keyframeAnimations.checkConsistency(); |
| |
| if (currentStyle && currentStyle->hasAnimations() && targetStyle->hasAnimations() && *(currentStyle->animations()) == *(targetStyle->animations())) { |
| // The current and target animations are the same so we just need to toss any |
| // animation which is finished (postActive). |
| for (auto& animation : m_keyframeAnimations.values()) { |
| if (animation->postActive()) |
| animation->setIndex(-1); |
| } |
| } else { |
| // Mark all existing animations as no longer active. |
| for (auto& animation : m_keyframeAnimations.values()) |
| animation->setIndex(-1); |
| |
| #if ENABLE(CSS_ANIMATIONS_LEVEL_2) |
| m_hasScrollTriggeredAnimation = false; |
| #endif |
| |
| // Toss the animation order map. |
| m_keyframeAnimationOrderMap.clear(); |
| |
| static NeverDestroyed<const AtomicString> none("none", AtomicString::ConstructFromLiteral); |
| |
| // Now mark any still active animations as active and add any new animations. |
| if (targetStyle->animations()) { |
| int numAnims = targetStyle->animations()->size(); |
| for (int i = 0; i < numAnims; ++i) { |
| Animation& animation = targetStyle->animations()->animation(i); |
| AtomicString animationName(animation.name()); |
| |
| if (!animation.isValidAnimation()) |
| continue; |
| |
| // See if there is a current animation for this name. |
| RefPtr<KeyframeAnimation> keyframeAnim = m_keyframeAnimations.get(animationName.impl()); |
| |
| if (keyframeAnim) { |
| // If this animation is postActive, skip it so it gets removed at the end of this function. |
| if (keyframeAnim->postActive()) |
| continue; |
| |
| #if ENABLE(CSS_ANIMATIONS_LEVEL_2) |
| if (animation.trigger()->isScrollAnimationTrigger()) |
| m_hasScrollTriggeredAnimation = true; |
| #endif |
| |
| // This one is still active. |
| |
| // Animations match, but play states may differ. Update if needed. |
| keyframeAnim->updatePlayState(animation.playState()); |
| |
| // Set the saved animation to this new one, just in case the play state has changed. |
| keyframeAnim->setAnimation(animation); |
| keyframeAnim->setIndex(i); |
| } else if ((animation.duration() || animation.delay()) && animation.iterationCount() && animationName != none) { |
| keyframeAnim = KeyframeAnimation::create(animation, renderer, i, this, targetStyle); |
| LOG(Animations, "Creating KeyframeAnimation %p on renderer %p with keyframes %s, duration %.2f, delay %.2f, iterations %.2f", keyframeAnim.get(), renderer, animation.name().utf8().data(), animation.duration(), animation.delay(), animation.iterationCount()); |
| if (m_suspended) { |
| keyframeAnim->updatePlayState(AnimPlayStatePaused); |
| LOG(Animations, " (created in suspended/paused state)"); |
| } |
| #if !LOG_DISABLED |
| for (auto propertyID : keyframeAnim->keyframes().properties()) |
| LOG(Animations, " property %s", getPropertyName(propertyID)); |
| #endif |
| |
| #if ENABLE(CSS_ANIMATIONS_LEVEL_2) |
| if (animation.trigger()->isScrollAnimationTrigger()) |
| m_hasScrollTriggeredAnimation = true; |
| #endif |
| |
| m_keyframeAnimations.set(keyframeAnim->name().impl(), keyframeAnim); |
| } |
| |
| // Add this to the animation order map. |
| if (keyframeAnim) |
| m_keyframeAnimationOrderMap.append(keyframeAnim->name().impl()); |
| } |
| } |
| } |
| |
| // Make a list of animations to be removed. |
| Vector<AtomicStringImpl*> animsToBeRemoved; |
| for (auto& animation : m_keyframeAnimations.values()) { |
| if (animation->index() < 0) { |
| animsToBeRemoved.append(animation->name().impl()); |
| animationController().animationWillBeRemoved(animation.get()); |
| animation->clear(); |
| LOG(Animations, "Removing KeyframeAnimation %p from renderer %p", animation.get(), renderer); |
| } |
| } |
| |
| // Now remove the animations from the list. |
| for (auto* nameForRemoval : animsToBeRemoved) |
| m_keyframeAnimations.remove(nameForRemoval); |
| } |
| |
| bool CompositeAnimation::animate(RenderElement& renderer, RenderStyle* currentStyle, RenderStyle& targetStyle, Ref<RenderStyle>& blendedStyle) |
| { |
| // We don't do any transitions if we don't have a currentStyle (on startup). |
| updateTransitions(&renderer, currentStyle, &targetStyle); |
| updateKeyframeAnimations(&renderer, currentStyle, &targetStyle); |
| m_keyframeAnimations.checkConsistency(); |
| |
| RefPtr<RenderStyle> animatedStyle; |
| bool animationStateChanged = false; |
| |
| if (currentStyle) { |
| // Now that we have transition objects ready, let them know about the new goal state. We want them |
| // to fill in a RenderStyle*& only if needed. |
| for (auto& transition : m_transitions.values()) { |
| if (transition->animate(this, &renderer, currentStyle, &targetStyle, animatedStyle)) |
| animationStateChanged = true; |
| } |
| } |
| |
| // Now that we have animation objects ready, let them know about the new goal state. We want them |
| // to fill in a RenderStyle*& only if needed. |
| for (auto& name : m_keyframeAnimationOrderMap) { |
| RefPtr<KeyframeAnimation> keyframeAnim = m_keyframeAnimations.get(name); |
| if (keyframeAnim && keyframeAnim->animate(this, &renderer, currentStyle, &targetStyle, animatedStyle)) |
| animationStateChanged = true; |
| } |
| |
| if (animatedStyle) |
| blendedStyle = animatedStyle.releaseNonNull(); |
| else |
| blendedStyle = targetStyle; |
| |
| return animationStateChanged; |
| } |
| |
| PassRefPtr<RenderStyle> CompositeAnimation::getAnimatedStyle() const |
| { |
| RefPtr<RenderStyle> resultStyle; |
| for (auto& transition : m_transitions.values()) |
| transition->getAnimatedStyle(resultStyle); |
| |
| m_keyframeAnimations.checkConsistency(); |
| |
| for (auto& name : m_keyframeAnimationOrderMap) { |
| RefPtr<KeyframeAnimation> keyframeAnimation = m_keyframeAnimations.get(name); |
| if (keyframeAnimation) |
| keyframeAnimation->getAnimatedStyle(resultStyle); |
| } |
| |
| return resultStyle; |
| } |
| |
| double CompositeAnimation::timeToNextService() const |
| { |
| // Returns the time at which next service is required. -1 means no service is required. 0 means |
| // service is required now, and > 0 means service is required that many seconds in the future. |
| double minT = -1; |
| |
| if (!m_transitions.isEmpty()) { |
| for (auto& transition : m_transitions.values()) { |
| double t = transition->timeToNextService(); |
| if (t < minT || minT == -1) |
| minT = t; |
| if (minT == 0) |
| return 0; |
| } |
| } |
| if (!m_keyframeAnimations.isEmpty()) { |
| m_keyframeAnimations.checkConsistency(); |
| for (auto& animation : m_keyframeAnimations.values()) { |
| double t = animation->timeToNextService(); |
| if (t < minT || minT == -1) |
| minT = t; |
| if (minT == 0) |
| return 0; |
| } |
| } |
| |
| return minT; |
| } |
| |
| PassRefPtr<KeyframeAnimation> CompositeAnimation::getAnimationForProperty(CSSPropertyID property) const |
| { |
| RefPtr<KeyframeAnimation> retval; |
| |
| // We want to send back the last animation with the property if there are multiples. |
| // So we need to iterate through all animations |
| if (!m_keyframeAnimations.isEmpty()) { |
| m_keyframeAnimations.checkConsistency(); |
| for (auto& animation : m_keyframeAnimations.values()) { |
| if (animation->hasAnimationForProperty(property)) |
| retval = animation; |
| } |
| } |
| |
| return retval; |
| } |
| |
| bool CompositeAnimation::computeExtentOfTransformAnimation(LayoutRect& bounds) const |
| { |
| // If more than one transition and animation affect transform, give up. |
| bool seenTransformAnimation = false; |
| |
| for (auto& animation : m_keyframeAnimations.values()) { |
| if (!animation->hasAnimationForProperty(CSSPropertyTransform)) |
| continue; |
| |
| if (seenTransformAnimation) |
| return false; |
| |
| seenTransformAnimation = true; |
| |
| if (!animation->computeExtentOfTransformAnimation(bounds)) |
| return false; |
| } |
| |
| for (auto& transition : m_transitions.values()) { |
| if (transition->animatingProperty() != CSSPropertyTransform || !transition->hasStyle()) |
| continue; |
| |
| if (seenTransformAnimation) |
| return false; |
| |
| if (!transition->computeExtentOfTransformAnimation(bounds)) |
| return false; |
| } |
| |
| return true; |
| } |
| |
| void CompositeAnimation::suspendAnimations() |
| { |
| if (m_suspended) |
| return; |
| |
| m_suspended = true; |
| |
| if (!m_keyframeAnimations.isEmpty()) { |
| m_keyframeAnimations.checkConsistency(); |
| for (auto& animation : m_keyframeAnimations.values()) |
| animation->updatePlayState(AnimPlayStatePaused); |
| } |
| |
| if (!m_transitions.isEmpty()) { |
| for (auto& transition : m_transitions.values()) { |
| if (transition->hasStyle()) |
| transition->updatePlayState(AnimPlayStatePaused); |
| } |
| } |
| } |
| |
| void CompositeAnimation::resumeAnimations() |
| { |
| if (!m_suspended) |
| return; |
| |
| m_suspended = false; |
| |
| if (!m_keyframeAnimations.isEmpty()) { |
| m_keyframeAnimations.checkConsistency(); |
| for (auto& animation : m_keyframeAnimations.values()) { |
| if (animation->playStatePlaying()) |
| animation->updatePlayState(AnimPlayStatePlaying); |
| } |
| } |
| |
| if (!m_transitions.isEmpty()) { |
| for (auto& transition : m_transitions.values()) { |
| if (transition->hasStyle()) |
| transition->updatePlayState(AnimPlayStatePlaying); |
| } |
| } |
| } |
| |
| void CompositeAnimation::overrideImplicitAnimations(CSSPropertyID property) |
| { |
| if (!m_transitions.isEmpty()) { |
| for (auto& transition : m_transitions.values()) { |
| if (transition->animatingProperty() == property) |
| transition->setOverridden(true); |
| } |
| } |
| } |
| |
| void CompositeAnimation::resumeOverriddenImplicitAnimations(CSSPropertyID property) |
| { |
| if (!m_transitions.isEmpty()) { |
| for (auto& transition : m_transitions.values()) { |
| if (transition->animatingProperty() == property) |
| transition->setOverridden(false); |
| } |
| } |
| } |
| |
| bool CompositeAnimation::isAnimatingProperty(CSSPropertyID property, bool acceleratedOnly, AnimationBase::RunningState runningState) const |
| { |
| if (!m_keyframeAnimations.isEmpty()) { |
| m_keyframeAnimations.checkConsistency(); |
| for (auto& animation : m_keyframeAnimations.values()) { |
| if (animation->isAnimatingProperty(property, acceleratedOnly, runningState)) |
| return true; |
| } |
| } |
| |
| if (!m_transitions.isEmpty()) { |
| for (auto& transition : m_transitions.values()) { |
| if (transition->isAnimatingProperty(property, acceleratedOnly, runningState)) |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| bool CompositeAnimation::pauseAnimationAtTime(const AtomicString& name, double t) |
| { |
| m_keyframeAnimations.checkConsistency(); |
| |
| RefPtr<KeyframeAnimation> keyframeAnim = m_keyframeAnimations.get(name.impl()); |
| if (!keyframeAnim || !keyframeAnim->running()) |
| return false; |
| |
| keyframeAnim->freezeAtTime(t); |
| return true; |
| } |
| |
| bool CompositeAnimation::pauseTransitionAtTime(CSSPropertyID property, double t) |
| { |
| if ((property < firstCSSProperty) || (property >= firstCSSProperty + numCSSProperties)) |
| return false; |
| |
| ImplicitAnimation* implAnim = m_transitions.get(property); |
| if (!implAnim) { |
| // Check to see if this property is being animated via a shorthand. |
| // This code is only used for testing, so performance is not critical here. |
| HashSet<CSSPropertyID> shorthandProperties = CSSPropertyAnimation::animatableShorthandsAffectingProperty(property); |
| bool anyPaused = false; |
| for (auto propertyID : shorthandProperties) { |
| if (pauseTransitionAtTime(propertyID, t)) |
| anyPaused = true; |
| } |
| return anyPaused; |
| } |
| |
| if (!implAnim->running()) |
| return false; |
| |
| if ((t >= 0.0) && (t <= implAnim->duration())) { |
| implAnim->freezeAtTime(t); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| unsigned CompositeAnimation::numberOfActiveAnimations() const |
| { |
| unsigned count = 0; |
| |
| m_keyframeAnimations.checkConsistency(); |
| for (auto& animation : m_keyframeAnimations.values()) { |
| if (animation->running()) |
| ++count; |
| } |
| |
| for (auto& transition : m_transitions.values()) { |
| if (transition->running()) |
| ++count; |
| } |
| |
| return count; |
| } |
| |
| } // namespace WebCore |
