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/*
* Copyright (C) 2018 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 "CSSTransition.h"
#include "Animation.h"
#include "DocumentTimeline.h"
#include "InspectorInstrumentation.h"
#include "KeyframeEffect.h"
#include "StyleResolver.h"
#include "TransitionEvent.h"
#include <wtf/IsoMallocInlines.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(CSSTransition);
Ref<CSSTransition> CSSTransition::create(const Styleable& owningElement, CSSPropertyID property, MonotonicTime generationTime, const Animation& backingAnimation, const RenderStyle* oldStyle, const RenderStyle& newStyle, Seconds delay, Seconds duration, const RenderStyle& reversingAdjustedStartStyle, double reversingShorteningFactor)
{
ASSERT(oldStyle);
auto result = adoptRef(*new CSSTransition(owningElement, property, generationTime, backingAnimation, *oldStyle, newStyle, reversingAdjustedStartStyle, reversingShorteningFactor));
result->initialize(oldStyle, newStyle, { nullptr });
result->setTimingProperties(delay, duration);
InspectorInstrumentation::didCreateWebAnimation(result.get());
return result;
}
CSSTransition::CSSTransition(const Styleable& styleable, CSSPropertyID property, MonotonicTime generationTime, const Animation& backingAnimation, const RenderStyle& oldStyle, const RenderStyle& targetStyle, const RenderStyle& reversingAdjustedStartStyle, double reversingShorteningFactor)
: DeclarativeAnimation(styleable, backingAnimation)
, m_property(property)
, m_generationTime(generationTime)
, m_timelineTimeAtCreation(styleable.element.document().timeline().currentTime())
, m_targetStyle(RenderStyle::clonePtr(targetStyle))
, m_currentStyle(RenderStyle::clonePtr(oldStyle))
, m_reversingAdjustedStartStyle(RenderStyle::clonePtr(reversingAdjustedStartStyle))
, m_reversingShorteningFactor(reversingShorteningFactor)
{
}
void CSSTransition::resolve(RenderStyle& targetStyle, const Style::ResolutionContext& resolutionContext, std::optional<Seconds> startTime)
{
DeclarativeAnimation::resolve(targetStyle, resolutionContext, startTime);
m_currentStyle = RenderStyle::clonePtr(targetStyle);
}
void CSSTransition::animationDidFinish()
{
if (auto owningElement = this->owningElement())
owningElement->removeDeclarativeAnimationFromListsForOwningElement(*this);
}
void CSSTransition::setTimingProperties(Seconds delay, Seconds duration)
{
suspendEffectInvalidation();
// This method is only called from CSSTransition::create() where we're guaranteed to have an effect.
auto* animationEffect = effect();
ASSERT(animationEffect);
// In order for CSS Transitions to be seeked backwards, they need to have their fill mode set to backwards
// such that the original CSS value applied prior to the transition is used for a negative current time.
animationEffect->setFill(FillMode::Backwards);
animationEffect->setDelay(delay);
animationEffect->setIterationDuration(duration);
animationEffect->setTimingFunction(backingAnimation().timingFunction());
animationEffect->updateStaticTimingProperties();
effectTimingDidChange();
unsuspendEffectInvalidation();
}
Ref<AnimationEventBase> CSSTransition::createEvent(const AtomString& eventType, double elapsedTime, const String& pseudoId, std::optional<Seconds> timelineTime)
{
return TransitionEvent::create(eventType, getPropertyNameString(m_property), elapsedTime, pseudoId, timelineTime, this);
}
} // namespace WebCore
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