Web Animations: Remove legacy animations engine.

Source/core/frame/animation/ImplicitAnimation.cpp

Index: Source/core/frame/animation/ImplicitAnimation.cpp
diff --git a/Source/core/frame/animation/ImplicitAnimation.cpp b/Source/core/frame/animation/ImplicitAnimation.cpp
deleted file mode 100644
index 2cf82b64b2b44d28ad033bb4304cd8277f06647b..0000000000000000000000000000000000000000
--- a/Source/core/frame/animation/ImplicitAnimation.cpp
+++ /dev/null
@@ -1,283 +0,0 @@
-/*
- * 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 Computer, 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 "core/events/ThreadLocalEventNames.h"
-#include "core/frame/UseCounter.h"
-#include "core/frame/animation/AnimationControllerPrivate.h"
-#include "core/frame/animation/CSSPropertyAnimation.h"
-#include "core/frame/animation/CompositeAnimation.h"
-#include "core/frame/animation/ImplicitAnimation.h"
-#include "core/frame/animation/KeyframeAnimation.h"
-#include "core/rendering/RenderBoxModelObject.h"
-#include "public/platform/Platform.h"
-
-namespace WebCore {
-
-ImplicitAnimation::ImplicitAnimation(const CSSAnimationData* transition, CSSPropertyID animatingProperty, RenderObject& renderer, CompositeAnimation* compAnim, RenderStyle* fromStyle)
-    : AnimationBase(transition, renderer, compAnim)
-    , m_transitionProperty(transition->property())
-    , m_animatingProperty(animatingProperty)
-    , m_overridden(false)
-    , m_active(true)
-    , m_fromStyle(fromStyle)
-{
-    ASSERT(animatingProperty != CSSPropertyInvalid);
-    blink::Platform::current()->histogramSparse("WebCore.Animation.CSSProperties", UseCounter::mapCSSPropertyIdToCSSSampleIdForHistogram(m_animatingProperty));
-}
-
-ImplicitAnimation::~ImplicitAnimation()
-{
-    // // 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 m_object->document().hasListenerType(inListenerType);
-}
-
-void ImplicitAnimation::animate(CompositeAnimation*, RenderObject*, const RenderStyle*, RenderStyle* targetStyle, RefPtr<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;
-
-    // Reset to start the transition if we are new
-    if (isNew())
-        reset(targetStyle);
-
-    // Run a cycle of animation.
-    // We know we will need a new render style, so make one if needed
-    if (!animatedStyle)
-        animatedStyle = RenderStyle::clone(targetStyle);
-
-    bool needsAnim = CSSPropertyAnimation::blendProperties(this, m_animatingProperty, animatedStyle.get(), m_fromStyle.get(), m_toStyle.get(), progress(1, 0, 0));
-    // 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
-    if (!needsAnim)
-        // If we are running an accelerated animation, set a flag in the style which causes the style
-        // to compare as different to any other style. This ensures that changes to the property
-        // that is animating are correctly detected during the animation (e.g. when a transition
-        // gets interrupted).
-        animatedStyle->setIsRunningAcceleratedAnimation();
-
-    // Fire the start timeout if needed
-    fireAnimationEventsIfNeeded();
-}
-
-void ImplicitAnimation::getAnimatedStyle(RefPtr<RenderStyle>& animatedStyle)
-{
-    if (!animatedStyle)
-        animatedStyle = RenderStyle::clone(m_toStyle.get());
-
-    CSSPropertyAnimation::blendProperties(this, m_animatingProperty, animatedStyle.get(), m_fromStyle.get(), m_toStyle.get(), progress(1, 0, 0));
-}
-
-void ImplicitAnimation::startAnimation(double timeOffset)
-{
-    if (m_object && m_object->compositingState() == PaintsIntoOwnBacking)
-        m_isAccelerated = toRenderBoxModelObject(m_object)->startTransition(timeOffset, m_animatingProperty, m_fromStyle.get(), m_toStyle.get());
-}
-
-void ImplicitAnimation::pauseAnimation(double timeOffset)
-{
-    if (!m_object)
-        return;
-
-    if (m_object && m_object->compositingState() == PaintsIntoOwnBacking && isAccelerated())
-        toRenderBoxModelObject(m_object)->transitionPaused(timeOffset, m_animatingProperty);
-
-    // Restore the original (unanimated) style
-    if (!paused())
-        setNeedsStyleRecalc(m_object->node());
-}
-
-void ImplicitAnimation::endAnimation()
-{
-    if (m_object && m_object->compositingState() == PaintsIntoOwnBacking && isAccelerated())
-        toRenderBoxModelObject(m_object)->transitionFinished(m_animatingProperty);
-    m_isAccelerated = false;
-}
-
-void ImplicitAnimation::onAnimationEnd(double elapsedTime)
-{
-    // 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).
-    RefPtr<KeyframeAnimation> keyframeAnim = m_compAnim->getAnimationForProperty(m_animatingProperty);
-    if (keyframeAnim)
-        keyframeAnim->setUnanimatedStyle(m_toStyle);
-
-    sendTransitionEvent(EventTypeNames::transitionend, elapsedTime);
-    endAnimation();
-}
-
-bool ImplicitAnimation::sendTransitionEvent(const AtomicString& eventType, double elapsedTime)
-{
-    if (eventType == EventTypeNames::transitionend) {
-        Document::ListenerType listenerType = Document::TRANSITIONEND_LISTENER;
-
-        if (shouldSendEventForListener(listenerType)) {
-            String propertyName = getPropertyNameString(m_animatingProperty);
-
-            // Dispatch the event
-            RefPtr<Element> element = 0;
-            if (m_object->node() && m_object->node()->isElementNode())
-                element = toElement(m_object->node());
-
-            if (!element)
-                return false;
-
-            // Schedule event handling
-            m_compAnim->animationController()->addEventToDispatch(element, eventType, propertyName, elapsedTime);
-
-            // Restore the original (unanimated) style
-            if (eventType == EventTypeNames::transitionend && element->renderer())
-                setNeedsStyleRecalc(element.get());
-
-            return true; // Did dispatch an event
-        }
-    }
-
-    return false; // Didn't dispatch an event
-}
-
-void ImplicitAnimation::reset(RenderStyle* to)
-{
-    ASSERT(to);
-    ASSERT(m_fromStyle);
-
-    m_toStyle = to;
-
-    // Restart the transition
-    if (m_fromStyle && m_toStyle)
-        updateStateMachine(AnimationStateInputRestartAnimation, -1);
-
-    // set the transform animation list
-    validateTransformFunctionList();
-    checkForMatchingFilterFunctionLists();
-}
-
-void ImplicitAnimation::setOverridden(bool b)
-{
-    if (b == m_overridden)
-        return;
-
-    m_overridden = b;
-    updateStateMachine(m_overridden ? AnimationStateInputPauseOverride : AnimationStateInputResumeOverride, -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(1, 0, 0));
-}
-
-void ImplicitAnimation::validateTransformFunctionList()
-{
-    m_transformFunctionListValid = 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 emtpy transform list matches anything.
-    if (val != toVal && !toVal->operations().isEmpty() && !val->operationsMatch(*toVal))
-        return;
-
-    // Transform lists match.
-    m_transformFunctionListValid = true;
-}
-
-void ImplicitAnimation::checkForMatchingFilterFunctionLists()
-{
-    m_filterFunctionListsMatch = false;
-
-    if (!m_fromStyle || !m_toStyle)
-        return;
-
-    const FilterOperations* val = &m_fromStyle->filter();
-    const FilterOperations* toVal = &m_toStyle->filter();
-
-    if (!val->canInterpolateWith(*toVal))
-        return;
-
-    // Filter lists match.
-    m_filterFunctionListsMatch = true;
-}
-
-double ImplicitAnimation::timeToNextService()
-{
-    double t = AnimationBase::timeToNextService();
-    if (t != 0 || 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, isLooping);
-    }
-
-    return t;
-}
-
-} // namespace WebCore