CompositeAnimation.cpp [plain text]
#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/text/CString.h>
namespace WebCore {
CompositeAnimation::CompositeAnimation(AnimationControllerPrivate& animationController)
: m_animationController(animationController)
{
m_suspended = m_animationController.isSuspended() && !m_animationController.allowsNewAnimationsWhileSuspended();
}
CompositeAnimation::~CompositeAnimation()
{
clearRenderer();
m_transitions.clear();
m_keyframeAnimations.clear();
}
void CompositeAnimation::clearRenderer()
{
if (!m_transitions.isEmpty()) {
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 || (!targetStyle->transitions() && m_transitions.isEmpty()))
return;
for (auto& transition : m_transitions.values())
transition->setActive(false);
RefPtr<RenderStyle> modifiedCurrentStyle;
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;
for (int propertyIndex = 0; propertyIndex < CSSPropertyAnimation::getNumProperties(); ++propertyIndex) {
if (all) {
bool isShorthand;
prop = CSSPropertyAnimation::getPropertyAtIndex(propertyIndex, isShorthand);
if (isShorthand)
continue;
}
ASSERT(prop >= firstCSSProperty && prop < (firstCSSProperty + numCSSProperties));
RefPtr<KeyframeAnimation> keyframeAnim = getAnimationForProperty(prop);
RenderStyle* fromStyle = keyframeAnim ? keyframeAnim->unanimatedStyle() : currentStyle;
ImplicitAnimation* implAnim = m_transitions.get(prop);
bool equal = true;
if (implAnim) {
if (!implAnim->postActive())
implAnim->setActive(true);
if (!implAnim->isTargetPropertyEqual(prop, targetStyle)) {
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 {
equal = !isActiveTransition || CSSPropertyAnimation::propertiesEqual(prop, fromStyle, targetStyle);
}
if (!equal && isActiveTransition) {
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());
}
if (!all)
break;
}
}
}
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()));
}
}
for (auto propertyToRemove : toBeRemoved)
m_transitions.remove(propertyToRemove);
}
void CompositeAnimation::updateKeyframeAnimations(RenderElement* renderer, RenderStyle* currentStyle, RenderStyle* targetStyle)
{
if (m_keyframeAnimations.isEmpty() && !targetStyle->hasAnimations())
return;
m_keyframeAnimations.checkConsistency();
if (currentStyle && currentStyle->hasAnimations() && targetStyle->hasAnimations() && *(currentStyle->animations()) == *(targetStyle->animations())) {
for (auto& animation : m_keyframeAnimations.values()) {
if (animation->postActive())
animation->setIndex(-1);
}
} else {
for (auto& animation : m_keyframeAnimations.values())
animation->setIndex(-1);
#if ENABLE(CSS_ANIMATIONS_LEVEL_2)
m_hasScrollTriggeredAnimation = false;
#endif
m_keyframeAnimationOrderMap.clear();
DEPRECATED_DEFINE_STATIC_LOCAL(const AtomicString, none, ("none", AtomicString::ConstructFromLiteral));
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;
RefPtr<KeyframeAnimation> keyframeAnim = m_keyframeAnimations.get(animationName.impl());
if (keyframeAnim) {
if (keyframeAnim->postActive())
continue;
#if ENABLE(CSS_ANIMATIONS_LEVEL_2)
if (animation.trigger()->isScrollAnimationTrigger())
m_hasScrollTriggeredAnimation = true;
#endif
keyframeAnim->updatePlayState(animation.playState());
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);
}
if (keyframeAnim)
m_keyframeAnimationOrderMap.append(keyframeAnim->name().impl());
}
}
}
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);
}
}
for (auto nameForRemoval : animsToBeRemoved)
m_keyframeAnimations.remove(nameForRemoval);
}
bool CompositeAnimation::animate(RenderElement& renderer, RenderStyle* currentStyle, RenderStyle& targetStyle, Ref<RenderStyle>& blendedStyle)
{
updateTransitions(&renderer, currentStyle, &targetStyle);
updateKeyframeAnimations(&renderer, currentStyle, &targetStyle);
m_keyframeAnimations.checkConsistency();
RefPtr<RenderStyle> animatedStyle;
bool animationStateChanged = false;
if (currentStyle) {
for (auto& transition : m_transitions.values()) {
if (transition->animate(this, &renderer, currentStyle, &targetStyle, animatedStyle))
animationStateChanged = true;
}
}
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
{
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;
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
{
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;
double count = keyframeAnim->m_animation->iterationCount();
if ((t >= 0.0) && ((count == Animation::IterationCountInfinite) || (t <= count * keyframeAnim->duration()))) {
keyframeAnim->freezeAtTime(t);
return true;
}
return false;
}
bool CompositeAnimation::pauseTransitionAtTime(CSSPropertyID property, double t)
{
if ((property < firstCSSProperty) || (property >= firstCSSProperty + numCSSProperties))
return false;
ImplicitAnimation* implAnim = m_transitions.get(property);
if (!implAnim) {
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;
}
}