WIP: Implement CSS transitions on top of InterpolationTypes instead of AnimatableValues

third_party/WebKit/Source/core/css/resolver/StyleResolver.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
@@ skipping 17 matching lines @@
 
 #include "core/css/resolver/StyleResolver.h"
 
 #include "core/CSSPropertyNames.h"
 #include "core/HTMLNames.h"
 #include "core/MediaTypeNames.h"
 #include "core/StylePropertyShorthand.h"
 #include "core/animation/AnimationTimeline.h"
 #include "core/animation/ElementAnimations.h"
 #include "core/animation/InterpolationEnvironment.h"
-#include "core/animation/InvalidatableInterpolation.h"
 #include "core/animation/KeyframeEffect.h"
+#include "core/animation/StackableInterpolation.h"
 #include "core/animation/StyleInterpolation.h"
 #include "core/animation/animatable/AnimatableValue.h"
 #include "core/animation/css/CSSAnimatableValueFactory.h"
 #include "core/animation/css/CSSAnimations.h"
 #include "core/css/CSSCalculationValue.h"
 #include "core/css/CSSCustomIdentValue.h"
 #include "core/css/CSSDefaultStyleSheets.h"
 #include "core/css/CSSFontSelector.h"
 #include "core/css/CSSKeyframeRule.h"
 #include "core/css/CSSKeyframesRule.h"
@@ skipping 1120 matching lines @@
 template <CSSPropertyPriority priority>
 void StyleResolver::applyAnimatedProperties(StyleResolverState& state, const ActiveInterpolationsMap& activeInterpolationsMap)
 {
     // TODO(alancutter): Don't apply presentation attribute animations here,
     // they should instead apply in SVGElement::collectStyleForPresentationAttribute().
     for (const auto& entry : activeInterpolationsMap) {
         CSSPropertyID property = entry.key.isCSSProperty() ? entry.key.cssProperty() : entry.key.presentationAttribute();
         if (!CSSPropertyPriorityData<priority>::propertyHasPriority(property))
             continue;
         const Interpolation& interpolation = *entry.value.first();
-        if (interpolation.isInvalidatableInterpolation()) {
-            InterpolationEnvironment environment(state);
-            InvalidatableInterpolation::applyStack(entry.value, environment);
-        } else {
+        if (interpolation.isStyleInterpolation()) {
             // TODO(alancutter): Remove this old code path once animations have completely migrated to InterpolationTypes.
             toStyleInterpolation(interpolation).apply(state);
+        } else {
+            InterpolationEnvironment environment(state);
+            StackableInterpolation::applyStack(entry.value, environment);
         }
     }
 }
 
 static inline bool isValidCueStyleProperty(CSSPropertyID id)
 {
     switch (id) {
     case CSSPropertyBackground:
     case CSSPropertyBackgroundAttachment:
     case CSSPropertyBackgroundClip:
@@ skipping 550 matching lines @@
     visitor->trace(m_siblingRuleSet);
     visitor->trace(m_uncommonAttributeRuleSet);
     visitor->trace(m_watchedSelectorsRules);
     visitor->trace(m_treeBoundaryCrossingScopes);
     visitor->trace(m_styleSharingLists);
     visitor->trace(m_pendingStyleSheets);
     visitor->trace(m_document);
 }
 
 } // namespace blink