Web Animations: Trigger and update CSS Animations backed by the Web Animations model

Source/core/dom/Element.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Peter Kelly (pmk@post.com)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013 Apple Inc. All rights reserved.
  *           (C) 2007 Eric Seidel (eric@webkit.org)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 192 matching lines @@
 
     if (PropertySetCSSStyleDeclaration* cssomWrapper = inlineStyleCSSOMWrapper())
         cssomWrapper->clearParentElement();
 
     if (hasRareData()) {
         ElementRareData* data = elementRareData();
         data->setPseudoElement(BEFORE, 0);
         data->setPseudoElement(AFTER, 0);
         data->setPseudoElement(BACKDROP, 0);
         data->clearShadow();
+
+        if (RuntimeEnabledFeatures::webAnimationsCSSEnabled()) {
+            if (ActiveAnimations* activeAnimations = data->activeAnimations())
+                activeAnimations->cssAnimations()->cancel();
+        }
     }
 
     if (isCustomElement())
         CustomElement::wasDestroyed(this);
 
     if (hasSyntheticAttrChildNodes())
         detachAllAttrNodesFromElement();
 
     if (hasPendingResources()) {
         document()->accessSVGExtensions()->removeElementFromPendingResources(this);
@@ skipping 1137 matching lines @@
     cancelFocusAppearanceUpdate();
     if (hasRareData()) {
         ElementRareData* data = elementRareData();
         data->setPseudoElement(BEFORE, 0);
         data->setPseudoElement(AFTER, 0);
         data->setPseudoElement(BACKDROP, 0);
         data->setIsInCanvasSubtree(false);
         data->resetComputedStyle();
         data->resetDynamicRestyleObservations();
         data->setIsInsideRegion(false);
+
+        if (RuntimeEnabledFeatures::webAnimationsCSSEnabled() && !context.performingReattach) {
+            if (ActiveAnimations* activeAnimations = data->activeAnimations())
+                activeAnimations->cssAnimations()->cancel();
+        }
     }
     if (ElementShadow* shadow = this->shadow())
         shadow->detach(context);
     ContainerNode::detach(context);
 }
 
 bool Element::pseudoStyleCacheIsInvalid(const RenderStyle* currentStyle, RenderStyle* newStyle)
 {
     ASSERT(currentStyle == renderStyle());
     ASSERT(renderer());
@@ skipping 87 matching lines @@
             clearChildNeedsStyleRecalc();
 
             if (hasCustomStyleCallbacks())
                 didRecalcStyle(change);
             return true;
         }
 
         InspectorInstrumentation::didRecalculateStyleForElement(this);
 
         if (RenderObject* renderer = this->renderer()) {
-            if (localChange != NoChange || pseudoStyleCacheIsInvalid(currentStyle.get(), newStyle.get()) || (change == Force && renderer->requiresForcedStyleRecalcPropagation()) || shouldNotifyRendererWithIdenticalStyles())
+            if (localChange != NoChange || pseudoStyleCacheIsInvalid(currentStyle.get(), newStyle.get()) || (change == Force && renderer->requiresForcedStyleRecalcPropagation()) || shouldNotifyRendererWithIdenticalStyles()) {
                 renderer->setAnimatableStyle(newStyle.get());
-            else if (needsStyleRecalc()) {
+            } else if (needsStyleRecalc()) {
                 // Although no change occurred, we use the new style so that the cousin style sharing code won't get
                 // fooled into believing this style is the same.
                 renderer->setStyleInternal(newStyle.get());
             }
         }
 
         // If "rem" units are used anywhere in the document, and if the document element's font size changes, then go ahead and force font updating
         // all the way down the tree. This is simpler than having to maintain a cache of objects (and such font size changes should be rare anyway).
         if (document()->styleSheetCollection()->usesRemUnits() && document()->documentElement() == this && localChange != NoChange && currentStyle && newStyle && currentStyle->fontSize() != newStyle->fontSize()) {
             // Cached RenderStyles may depend on the re units.
@@ skipping 2110 matching lines @@
     return 0;
 }
 
 Attribute* UniqueElementData::attributeItem(unsigned index)
 {
     ASSERT_WITH_SECURITY_IMPLICATION(index < length());
     return &m_attributeVector.at(index);
 }
 
 } // namespace WebCore