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/*
* 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 "ImplicitAnimation.h"
#include "CSSAnimationControllerPrivate.h"
#include "CSSPropertyAnimation.h"
#include "CompositeAnimation.h"
#if PLATFORM(IOS_FAMILY)
#include "ContentChangeObserver.h"
#endif
#include "EventNames.h"
#include "GeometryUtilities.h"
#include "KeyframeAnimation.h"
#include "RenderBox.h"
#include "StylePendingResources.h"
namespace WebCore {
ImplicitAnimation::ImplicitAnimation(const Animation& transition, CSSPropertyID animatingProperty, Element& element, CompositeAnimation& compositeAnimation, const RenderStyle& fromStyle)
: AnimationBase(transition, element, compositeAnimation)
, m_fromStyle(RenderStyle::clonePtr(fromStyle))
, m_transitionProperty(transition.property())
, m_animatingProperty(animatingProperty)
{
#if PLATFORM(IOS_FAMILY)
element.document().contentChangeObserver().didAddTransition(element, transition);
#endif
ASSERT(animatingProperty != CSSPropertyInvalid);
}
ImplicitAnimation::~ImplicitAnimation()
{
#if PLATFORM(IOS_FAMILY)
if (auto* element = this->element())
element->document().contentChangeObserver().didRemoveTransition(*element, m_animatingProperty);
#endif
// // Make sure to tell the renderer that we are ending. This will make sure any accelerated animations are removed.
if (!postActive())
endAnimation();
}
bool ImplicitAnimation::shouldSendEventForListener(Document::ListenerType inListenerType) const
{
return element()->document().hasListenerType(inListenerType);
}
OptionSet<AnimateChange> ImplicitAnimation::animate(CompositeAnimation& compositeAnimation, const RenderStyle& targetStyle, std::unique_ptr<RenderStyle>& animatedStyle)
{
// If we get this far and the animation is done, it means we are cleaning up a just finished animation.
// So just return. Everything is already all cleaned up.
if (postActive())
return { };
AnimationState oldState = state();
// Reset to start the transition if we are new
if (isNew())
reset(targetStyle, compositeAnimation);
// Run a cycle of animation.
// We know we will need a new render style, so make one if needed
if (!animatedStyle)
animatedStyle = RenderStyle::clonePtr(targetStyle);
CSSPropertyAnimation::blendProperties(this, m_animatingProperty, animatedStyle.get(), m_fromStyle.get(), m_toStyle.get(), progress());
// FIXME: we also need to detect cases where we have to software animate for other reasons,
// such as a child using inheriting the transform. https://bugs.webkit.org/show_bug.cgi?id=23902
// Fire the start timeout if needed
fireAnimationEventsIfNeeded();
OptionSet<AnimateChange> change(AnimateChange::StyleBlended);
if (state() != oldState)
change.add(AnimateChange::StateChange);
if ((isPausedState(oldState) || isRunningState(oldState)) != (isPausedState(state()) || isRunningState(state())))
change.add(AnimateChange::RunningStateChange);
return change;
}
void ImplicitAnimation::getAnimatedStyle(std::unique_ptr<RenderStyle>& animatedStyle)
{
if (!animatedStyle)
animatedStyle = RenderStyle::clonePtr(*m_toStyle);
CSSPropertyAnimation::blendProperties(this, m_animatingProperty, animatedStyle.get(), m_fromStyle.get(), m_toStyle.get(), progress());
}
bool ImplicitAnimation::computeExtentOfTransformAnimation(LayoutRect& bounds) const
{
ASSERT(hasStyle());
if (!is<RenderBox>(renderer()))
return true; // Non-boxes don't get transformed;
ASSERT(m_animatingProperty == CSSPropertyTransform);
RenderBox& box = downcast<RenderBox>(*renderer());
FloatRect rendererBox = snapRectToDevicePixels(box.borderBoxRect(), box.document().deviceScaleFactor());
LayoutRect startBounds = bounds;
LayoutRect endBounds = bounds;
if (transformFunctionListsMatch()) {
if (!computeTransformedExtentViaTransformList(rendererBox, *m_fromStyle, startBounds))
return false;
if (!computeTransformedExtentViaTransformList(rendererBox, *m_toStyle, endBounds))
return false;
} else {
if (!computeTransformedExtentViaMatrix(rendererBox, *m_fromStyle, startBounds))
return false;
if (!computeTransformedExtentViaMatrix(rendererBox, *m_toStyle, endBounds))
return false;
}
bounds = unionRect(startBounds, endBounds);
return true;
}
bool ImplicitAnimation::affectsAcceleratedProperty() const
{
return CSSPropertyAnimation::animationOfPropertyIsAccelerated(m_animatingProperty);
}
bool ImplicitAnimation::startAnimation(double timeOffset)
{
if (auto* renderer = this->renderer())
return renderer->startTransition(timeOffset, m_animatingProperty, m_fromStyle.get(), m_toStyle.get());
return false;
}
void ImplicitAnimation::pauseAnimation(double timeOffset)
{
if (auto* renderer = this->renderer())
renderer->transitionPaused(timeOffset, m_animatingProperty);
// Restore the original (unanimated) style
if (!paused())
setNeedsStyleRecalc(element());
}
void ImplicitAnimation::clear()
{
#if PLATFORM(IOS_FAMILY)
if (auto* element = this->element())
element->document().contentChangeObserver().didRemoveTransition(*element, m_animatingProperty);
#endif
AnimationBase::clear();
}
void ImplicitAnimation::endAnimation(bool)
{
if (auto* renderer = this->renderer())
renderer->transitionFinished(m_animatingProperty);
}
void ImplicitAnimation::onAnimationEnd(double elapsedTime)
{
#if PLATFORM(IOS_FAMILY)
if (auto* element = this->element())
element->document().contentChangeObserver().didFinishTransition(*element, m_animatingProperty);
#endif
// If we have a keyframe animation on this property, this transition is being overridden. The keyframe
// animation keeps an unanimated style in case a transition starts while the keyframe animation is
// running. But now that the transition has completed, we need to update this style with its new
// destination. If we didn't, the next time through we would think a transition had started
// (comparing the old unanimated style with the new final style of the transition).
if (auto* animation = m_compositeAnimation->animationForProperty(m_animatingProperty))
animation->setUnanimatedStyle(RenderStyle::clonePtr(*m_toStyle));
sendTransitionEvent(eventNames().transitionendEvent, elapsedTime);
endAnimation();
}
bool ImplicitAnimation::sendTransitionEvent(const AtomString& eventType, double elapsedTime)
{
if (eventType == eventNames().transitionendEvent) {
Document::ListenerType listenerType = Document::TRANSITIONEND_LISTENER;
if (shouldSendEventForListener(listenerType)) {
String propertyName = getPropertyNameString(m_animatingProperty);
// Dispatch the event
auto element = makeRefPtr(this->element());
ASSERT(!element || element->document().pageCacheState() == Document::NotInPageCache);
if (!element)
return false;
// Schedule event handling
m_compositeAnimation->animationController().addEventToDispatch(*element, eventType, propertyName, elapsedTime);
// Restore the original (unanimated) style
if (eventType == eventNames().transitionendEvent && element->renderer())
setNeedsStyleRecalc(element.get());
return true; // Did dispatch an event
}
}
return false; // Didn't dispatch an event
}
void ImplicitAnimation::reset(const RenderStyle& to, CompositeAnimation& compositeAnimation)
{
ASSERT(m_fromStyle);
m_toStyle = RenderStyle::clonePtr(to);
if (element())
Style::loadPendingResources(*m_toStyle, element()->document(), element());
// Restart the transition.
if (m_fromStyle && m_toStyle && !compositeAnimation.isSuspended())
updateStateMachine(AnimationStateInput::RestartAnimation, -1);
// Set the transform animation list.
validateTransformFunctionList();
checkForMatchingFilterFunctionLists();
#if ENABLE(FILTERS_LEVEL_2)
checkForMatchingBackdropFilterFunctionLists();
#endif
checkForMatchingColorFilterFunctionLists();
}
void ImplicitAnimation::setOverridden(bool b)
{
if (b == m_overridden)
return;
m_overridden = b;
updateStateMachine(m_overridden ? AnimationStateInput::PauseOverride : AnimationStateInput::ResumeOverride, -1);
}
bool ImplicitAnimation::affectsProperty(CSSPropertyID property) const
{
return (m_animatingProperty == property);
}
bool ImplicitAnimation::isTargetPropertyEqual(CSSPropertyID prop, const RenderStyle* targetStyle)
{
// We can get here for a transition that has not started yet. This would make m_toStyle unset and null.
// So we check that here (see <https://bugs.webkit.org/show_bug.cgi?id=26706>)
if (!m_toStyle)
return false;
return CSSPropertyAnimation::propertiesEqual(prop, m_toStyle.get(), targetStyle);
}
void ImplicitAnimation::blendPropertyValueInStyle(CSSPropertyID prop, RenderStyle* currentStyle)
{
// We should never add a transition with a 0 duration and delay. But if we ever did
// it would have a null toStyle. So just in case, let's check that here. (See
// <https://bugs.webkit.org/show_bug.cgi?id=24787>
if (!m_toStyle)
return;
CSSPropertyAnimation::blendProperties(this, prop, currentStyle, m_fromStyle.get(), m_toStyle.get(), progress());
}
void ImplicitAnimation::validateTransformFunctionList()
{
m_transformFunctionListsMatch = false;
if (!m_fromStyle || !m_toStyle)
return;
const TransformOperations* val = &m_fromStyle->transform();
const TransformOperations* toVal = &m_toStyle->transform();
if (val->operations().isEmpty())
val = toVal;
if (val->operations().isEmpty())
return;
// An empty transform list matches anything.
if (val != toVal && !toVal->operations().isEmpty() && !val->operationsMatch(*toVal))
return;
// Transform lists match.
m_transformFunctionListsMatch = true;
}
static bool filterOperationsMatch(const FilterOperations* fromOperations, const FilterOperations& toOperations)
{
if (fromOperations->operations().isEmpty())
fromOperations = &toOperations;
if (fromOperations->operations().isEmpty())
return false;
if (fromOperations != &toOperations && !toOperations.operations().isEmpty() && !fromOperations->operationsMatch(toOperations))
return false;
return true;
}
void ImplicitAnimation::checkForMatchingFilterFunctionLists()
{
m_filterFunctionListsMatch = false;
if (!m_fromStyle || !m_toStyle)
return;
m_filterFunctionListsMatch = filterOperationsMatch(&m_fromStyle->filter(), m_toStyle->filter());
}
#if ENABLE(FILTERS_LEVEL_2)
void ImplicitAnimation::checkForMatchingBackdropFilterFunctionLists()
{
m_backdropFilterFunctionListsMatch = false;
if (!m_fromStyle || !m_toStyle)
return;
m_backdropFilterFunctionListsMatch = filterOperationsMatch(&m_fromStyle->backdropFilter(), m_toStyle->backdropFilter());
}
#endif
void ImplicitAnimation::checkForMatchingColorFilterFunctionLists()
{
m_filterFunctionListsMatch = false;
if (!m_fromStyle || !m_toStyle)
return;
m_colorFilterFunctionListsMatch = filterOperationsMatch(&m_fromStyle->appleColorFilter(), m_toStyle->appleColorFilter());
}
Optional<Seconds> ImplicitAnimation::timeToNextService()
{
Optional<Seconds> t = AnimationBase::timeToNextService();
if (!t || t.value() != 0_s || preActive())
return t;
// A return value of 0 means we need service. But if this is an accelerated animation we
// only need service at the end of the transition.
if (CSSPropertyAnimation::animationOfPropertyIsAccelerated(m_animatingProperty) && isAccelerated()) {
bool isLooping;
getTimeToNextEvent(t.value(), isLooping);
}
return t;
}
} // namespace WebCore