[Reland] Web Animations: Introduce String based KeyframeEffectModel

Source/core/animation/css/CSSAnimations.cpp

 /*
  * Copyright (C) 2013 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 79 matching lines @@
         if (RuntimeEnabledFeatures::cssTransformsUnprefixedEnabled())
             return CSSPropertyTransformOrigin;
         break;
     default:
         break;
     }
     return property;
 }
 
 static void resolveKeyframes(StyleResolver* resolver, Element* element, const Element& parentElement, const RenderStyle& style, RenderStyle* parentStyle, const AtomicString& name, TimingFunction* defaultTimingFunction,
-    KeyframeEffectModel::KeyframeVector& keyframes)
+    AnimatableValueKeyframeVector& keyframes)
 {
     // When the element is null, use its parent for scoping purposes.
     const Element* elementForScoping = element ? element : &parentElement;
     const StyleRuleKeyframes* keyframesRule = CSSAnimations::matchScopedKeyframesRule(resolver, elementForScoping, name.impl());
     if (!keyframesRule)
         return;
 
     const WillBeHeapVector<RefPtrWillBeMember<StyleKeyframe> >& styleKeyframes = keyframesRule->keyframes();
     if (styleKeyframes.isEmpty())
         return;
 
     // Construct and populate the style for each keyframe
     PropertySet specifiedPropertiesForUseCounter;
     for (size_t i = 0; i < styleKeyframes.size(); ++i) {
         const StyleKeyframe* styleKeyframe = styleKeyframes[i].get();
         // It's OK to pass a null element here.
         RefPtr<RenderStyle> keyframeStyle = resolver->styleForKeyframe(element, style, parentStyle, styleKeyframe, name);
-        RefPtrWillBeRawPtr<Keyframe> keyframe = Keyframe::create();
+        RefPtrWillBeRawPtr<AnimatableValueKeyframe> keyframe = AnimatableValueKeyframe::create();
         const Vector<double>& offsets = styleKeyframe->keys();
         ASSERT(!offsets.isEmpty());
         keyframe->setOffset(offsets[0]);
         keyframe->setEasing(defaultTimingFunction);
         const StylePropertySet& properties = styleKeyframe->properties();
         for (unsigned j = 0; j < properties.propertyCount(); j++) {
             specifiedPropertiesForUseCounter.add(properties.propertyAt(j).id());
             CSSPropertyID property = propertyForAnimation(properties.propertyAt(j).id());
             if (property == CSSPropertyWebkitAnimationTimingFunction || property == CSSPropertyAnimationTimingFunction) {
                 keyframe->setEasing(KeyframeValue::timingFunction(*keyframeStyle));
             } else if (CSSAnimations::isAnimatableProperty(property)) {
                 keyframe->setPropertyValue(property, CSSAnimatableValueFactory::create(property, *keyframeStyle).get());
             }
         }
         keyframes.append(keyframe);
         // The last keyframe specified at a given offset is used.
         for (size_t j = 1; j < offsets.size(); ++j) {
-            keyframes.append(keyframe->cloneWithOffset(offsets[j]));
+            keyframes.append(toAnimatableValueKeyframe(keyframe->cloneWithOffset(offsets[j]).get()));
         }
     }
     ASSERT(!keyframes.isEmpty());
 
     for (PropertySet::const_iterator iter = specifiedPropertiesForUseCounter.begin(); iter != specifiedPropertiesForUseCounter.end(); ++iter) {
         const CSSPropertyID property = *iter;
         ASSERT(property != CSSPropertyInvalid);
         blink::Platform::current()->histogramSparse("WebCore.Animation.CSSProperties", UseCounter::mapCSSPropertyIdToCSSSampleIdForHistogram(property));
     }
 
     // Remove duplicate keyframes. In CSS the last keyframe at a given offset takes priority.
     std::stable_sort(keyframes.begin(), keyframes.end(), Keyframe::compareOffsets);
     size_t targetIndex = 0;
     for (size_t i = 1; i < keyframes.size(); i++) {
         if (keyframes[i]->offset() != keyframes[targetIndex]->offset())
             targetIndex++;
         if (targetIndex != i)
             keyframes[targetIndex] = keyframes[i];
     }
     keyframes.shrink(targetIndex + 1);
 
     // Add 0% and 100% keyframes if absent.
-    RefPtrWillBeRawPtr<Keyframe> startKeyframe = keyframes[0];
+    RefPtrWillBeRawPtr<AnimatableValueKeyframe> startKeyframe = keyframes[0];
     if (startKeyframe->offset()) {
-        startKeyframe = Keyframe::create();
+        startKeyframe = AnimatableValueKeyframe::create();
         startKeyframe->setOffset(0);
         keyframes.prepend(startKeyframe);
     }
-    RefPtrWillBeRawPtr<Keyframe> endKeyframe = keyframes[keyframes.size() - 1];
+    RefPtrWillBeRawPtr<AnimatableValueKeyframe> endKeyframe = keyframes[keyframes.size() - 1];
     if (endKeyframe->offset() != 1) {
-        endKeyframe = Keyframe::create();
+        endKeyframe = AnimatableValueKeyframe::create();
         endKeyframe->setOffset(1);
         keyframes.append(endKeyframe);
     }
     ASSERT(keyframes.size() >= 2);
     ASSERT(!keyframes.first()->offset());
     ASSERT(keyframes.last()->offset() == 1);
 
     // Snapshot current property values for 0% and 100% if missing.
     PropertySet allProperties;
     size_t numKeyframes = keyframes.size();
@@ skipping 156 matching lines @@
                         ASSERT(!activeAnimations || !activeAnimations->isAnimationStyleChange());
                         update->toggleAnimationPaused(animationName);
                     }
                     continue;
                 }
             }
 
             Timing timing;
             bool isPaused;
             RefPtr<TimingFunction> keyframeTimingFunction = timingFromAnimationData(animationData, timing, isPaused);
-            KeyframeEffectModel::KeyframeVector resolvedKeyframes;
+            AnimatableValueKeyframeVector resolvedKeyframes;
             resolveKeyframes(resolver, element, parentElement, style, parentStyle, animationName, keyframeTimingFunction.get(), resolvedKeyframes);
             if (!resolvedKeyframes.isEmpty()) {
                 ASSERT(!activeAnimations || !activeAnimations->isAnimationStyleChange());
-                update->startAnimation(animationName, InertAnimation::create(KeyframeEffectModel::create(resolvedKeyframes), timing, isPaused));
+                update->startAnimation(animationName, InertAnimation::create(AnimatableValueKeyframeEffectModel::create(resolvedKeyframes), timing, isPaused));
             }
         }
     }
 
     ASSERT(inactive.isEmpty() || cssAnimations);
     for (HashSet<AtomicString>::const_iterator iter = inactive.begin(); iter != inactive.end(); ++iter) {
         ASSERT(!activeAnimations || !activeAnimations->isAnimationStyleChange());
         update->cancelAnimation(*iter, *cssAnimations->m_animations.get(*iter));
     }
 }
@@ skipping 66 matching lines @@
         OwnPtr<TransitionEventDelegate> eventDelegate = adoptPtr(new TransitionEventDelegate(element, newTransition.eventId));
 
         RefPtrWillBeRawPtr<AnimationEffect> effect = inertAnimation->effect();
 
         if (retargetedCompositorTransitions.contains(id)) {
             const std::pair<RefPtr<Animation>, double>& oldTransition = retargetedCompositorTransitions.get(id);
             RefPtr<Animation> oldAnimation = oldTransition.first;
             double oldStartTime = oldTransition.second;
             double inheritedTime = isNull(oldStartTime) ? 0 : element->document().transitionTimeline().currentTime() - oldStartTime;
             oldAnimation->updateInheritedTime(inheritedTime);
-            KeyframeEffectModel* oldEffect = toKeyframeEffectModel(inertAnimation->effect());
-            const KeyframeEffectModel::KeyframeVector& frames = oldEffect->getFrames();
-            KeyframeEffectModel::KeyframeVector newFrames;
-            newFrames.append(frames[0]->clone());
+            AnimatableValueKeyframeEffectModel* oldEffect = toAnimatableValueKeyframeEffectModel(inertAnimation->effect());
+            const KeyframeVector& frames = oldEffect->getFrames();
+            AnimatableValueKeyframeVector newFrames;
+            newFrames.append(toAnimatableValueKeyframe(frames[0]->clone().get()));
             newFrames[0]->clearPropertyValue(id);
             ASSERT(oldAnimation->activeInterpolations().size() == 1);
-            const AnimatableValue* value = toLegacyStyleInterpolation(oldAnimation->activeInterpolations()[0].get())->currentValue();
-            newFrames[0]->setPropertyValue(id, value);
-            newFrames.append(frames[1]->clone());
-            effect = KeyframeEffectModel::create(newFrames);
+            RefPtrWillBeRawPtr<AnimatableValue> value = toLegacyStyleInterpolation(oldAnimation->activeInterpolations()[0].get())->currentValue();
+            newFrames[0]->setPropertyValue(id, value.release());
+            newFrames.append(toAnimatableValueKeyframe(frames[1]->clone().get()));
+            effect = AnimatableValueKeyframeEffectModel::create(newFrames);
         }
         RefPtr<Animation> transition = Animation::create(element, effect, inertAnimation->specifiedTiming(), Animation::TransitionPriority, eventDelegate.release());
         RefPtr<AnimationPlayer> player = element->document().transitionTimeline().createAnimationPlayer(transition.get());
         player->update();
         element->document().cssPendingAnimations().add(player.get());
         runningTransition.transition = transition.get();
         m_transitions.set(id, runningTransition);
         ASSERT(id != CSSPropertyInvalid);
         blink::Platform::current()->histogramSparse("WebCore.Animation.CSSProperties", UseCounter::mapCSSPropertyIdToCSSSampleIdForHistogram(id));
     }
@@ skipping 28 matching lines @@
     if (AnimatableValue::usesDefaultInterpolation(to.get(), from.get()))
         return;
 
     Timing timing;
     bool isPaused;
     RefPtr<TimingFunction> timingFunction = timingFromAnimationData(anim, timing, isPaused);
     ASSERT(!isPaused);
     // Note that the backwards part is required for delay to work.
     timing.fillMode = Timing::FillModeBoth;
 
-    KeyframeEffectModel::KeyframeVector keyframes;
+    AnimatableValueKeyframeVector keyframes;
 
-    RefPtrWillBeRawPtr<Keyframe> startKeyframe = Keyframe::create();
+    RefPtrWillBeRawPtr<AnimatableValueKeyframe> startKeyframe = AnimatableValueKeyframe::create();
     startKeyframe->setPropertyValue(id, from.get());
     startKeyframe->setOffset(0);
     startKeyframe->setEasing(timingFunction);
     keyframes.append(startKeyframe);
 
-    RefPtrWillBeRawPtr<Keyframe> endKeyframe = Keyframe::create();
+    RefPtrWillBeRawPtr<AnimatableValueKeyframe> endKeyframe = AnimatableValueKeyframe::create();
     endKeyframe->setPropertyValue(id, to.get());
     endKeyframe->setOffset(1);
     keyframes.append(endKeyframe);
 
-    RefPtrWillBeRawPtr<KeyframeEffectModel> effect = KeyframeEffectModel::create(keyframes);
+    RefPtrWillBeRawPtr<AnimatableValueKeyframeEffectModel> effect = AnimatableValueKeyframeEffectModel::create(keyframes);
 
     CSSPropertyID eventId = anim->animationMode() == CSSAnimationData::AnimateAll ? id : anim->property();
     update->startTransition(id, eventId, from.get(), to.get(), InertAnimation::create(effect, timing, isPaused));
     ASSERT(!element->activeAnimations() || !element->activeAnimations()->isAnimationStyleChange());
 }
 
 void CSSAnimations::calculateTransitionUpdate(CSSAnimationUpdate* update, const Element* element, const RenderStyle& style)
 {
     if (!element)
         return;
@@ skipping 324 matching lines @@
 }
 
 void CSSAnimationUpdate::trace(Visitor* visitor)
 {
     visitor->trace(m_newTransitions);
     visitor->trace(m_activeInterpolationsForAnimations);
     visitor->trace(m_activeInterpolationsForTransitions);
 }
 
 } // namespace WebCore