SVG Web Animations: Add SVGInterpolationType pipeline

third_party/WebKit/Source/core/animation/SVGInterpolationType.cpp

Index: third_party/WebKit/Source/core/animation/SVGInterpolationType.cpp
diff --git a/third_party/WebKit/Source/core/animation/SVGInterpolationType.cpp b/third_party/WebKit/Source/core/animation/SVGInterpolationType.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..82435d989bcd424ca7aac04e18fd8814df829d42
--- /dev/null
+++ b/third_party/WebKit/Source/core/animation/SVGInterpolationType.cpp
@@ -0,0 +1,38 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "config.h"
+#include "core/animation/SVGInterpolationType.h"
+
+#include "core/animation/InterpolationEnvironment.h"
+#include "core/animation/StringKeyframe.h"
+#include "core/svg/SVGAnimateElement.h"
+
+namespace blink {
+
+PassOwnPtr<InterpolationValue> SVGInterpolationType::maybeConvertSingle(const PropertySpecificKeyframe& keyframe, const InterpolationEnvironment& environment, const UnderlyingValue&, ConversionCheckers&) const
+{
+    if (keyframe.isNeutral())
+        return maybeConvertNeutral();
+
+    RefPtrWillBeRawPtr<SVGPropertyBase> svgValue = environment.svgBaseValue().cloneForAnimation(toSVGPropertySpecificKeyframe(keyframe).value());
+    return maybeConvertSVGValue(*svgValue);
+}
+
+void SVGInterpolationType::apply(const InterpolableValue& interpolableValue, const NonInterpolableValue* nonInterpolableValue, InterpolationEnvironment& environment) const
+{
+    SVGElement& targetElement = environment.svgElement();
+    SVGElement::InstanceUpdateBlocker blocker(&targetElement);
+    RefPtrWillBeRawPtr<SVGPropertyBase> appliedValue = appliedSVGValue(interpolableValue, nonInterpolableValue);
+    for (SVGElement* instance : SVGAnimateElement::findElementInstances(&targetElement)) {
+        RefPtrWillBeRawPtr<SVGAnimatedPropertyBase> animatedProperty = instance->propertyFromAttribute(attribute());
+        if (animatedProperty) {
+            animatedProperty->setAnimatedValue(appliedValue);
+            instance->invalidateSVGAttributes();
+            instance->svgAttributeChanged(attribute());
+        }
+    }
+}
+
+} // namespace blink