Web Animations API: Start implementation of Element.animate().

Source/core/css/resolver/StyleResolver.cpp

Index: Source/core/css/resolver/StyleResolver.cpp
diff --git a/Source/core/css/resolver/StyleResolver.cpp b/Source/core/css/resolver/StyleResolver.cpp
index 504b78502509d41b7da274a79b92bbfd7c250fb5..ff7c260b6e1ac379543d3e80ac66898ff7c95eab 100644
--- a/Source/core/css/resolver/StyleResolver.cpp
+++ b/Source/core/css/resolver/StyleResolver.cpp
@@ -858,6 +858,25 @@ void StyleResolver::keyframeStylesForAnimation(Element* e, const RenderStyle& el
     }
 }
 
+// This function is used by the WebAnimations JavaScript API method animate().
+void StyleResolver::setKeyframePropertyValues(KeyframeAnimationEffect::KeyframeVector& keyframes, Vector<RefPtr<MutableStylePropertySet> >& propertySetVector, Element* element)

[Steve Block, 2013/12/09 03:11:15]

Can propertySetVector and element be const? Also, out params like keyframes are
usually last.

[rjwright, 2013/12/09 09:04:02]

Done.
propertySetVector yes, element no.

+{
+    ASSERT(RuntimeEnabledFeatures::webAnimationsAPIEnabled());
+    ASSERT(propertySetVector.size() == keyframes.size());
+
+    StyleResolverState state(element->document(), element);
+    RefPtr<RenderStyle> style = RenderStyle::clone(element->computedStyle());

[Steve Block, 2013/12/09 03:11:15]

As discussed, I don't think this is required - we only need the style properties
that are explicitly set on the keyframe.

[rjwright, 2013/12/09 09:04:02]

Done.

+    state.setStyle(style);
+
+    for (unsigned i = 0; i < propertySetVector.size(); ++i) {
+        for (unsigned j = 0; j < propertySetVector[i]->propertyCount(); ++j) {
+            CSSPropertyID id = propertySetVector[i]->propertyAt(j).id();
+            StyleBuilder::applyProperty(id, state, propertySetVector[i]->getPropertyCSSValue(id).get());
+            keyframes[i]->setPropertyValue(id, CSSAnimatableValueFactory::create(id, *style.get()).get());
+        }
+    }
+}
+
 PassRefPtr<RenderStyle> StyleResolver::pseudoStyleForElement(Element* e, const PseudoStyleRequest& pseudoStyleRequest, RenderStyle* parentStyle)
 {
     ASSERT(document().frame());