Web Animations: Add SVGRectInterpolationType

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

Index: third_party/WebKit/Source/core/animation/SVGRectInterpolationType.cpp
diff --git a/third_party/WebKit/Source/core/animation/SVGRectInterpolationType.cpp b/third_party/WebKit/Source/core/animation/SVGRectInterpolationType.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..2cad227a809334a757ff2ebc4b17a2faa75f49a2
--- /dev/null
+++ b/third_party/WebKit/Source/core/animation/SVGRectInterpolationType.cpp
@@ -0,0 +1,55 @@
+// 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/SVGRectInterpolationType.h"
+
+#include "core/animation/InterpolationEnvironment.h"
+#include "core/animation/StringKeyframe.h"
+#include "core/svg/SVGRect.h"
+#include "wtf/StdLibExtras.h"
+
+namespace blink {
+
+enum RectComponentIndex {
+    RectX,
+    RectY,
+    RectWidth,
+    RectHeight,
+    RectComponentIndexCount,
+};
+
+PassOwnPtr<InterpolationValue> SVGRectInterpolationType::maybeConvertNeutral(const UnderlyingValue&, ConversionCheckers&) const
+{
+    OwnPtr<InterpolableList> result = InterpolableList::create(RectComponentIndexCount);
+    for (size_t i = 0; i < RectComponentIndexCount; i++)
+        result->set(i, InterpolableNumber::create(0));
+    return InterpolationValue::create(*this, result.release());
+}
+
+PassOwnPtr<InterpolationValue> SVGRectInterpolationType::maybeConvertSVGValue(const SVGPropertyBase& svgValue) const
+{
+    if (svgValue.type() != AnimatedRect)
+        return nullptr;
+
+    const SVGRect& rect = toSVGRect(svgValue);
+    OwnPtr<InterpolableList> result = InterpolableList::create(RectComponentIndexCount);
+    result->set(RectX, InterpolableNumber::create(rect.x()));
+    result->set(RectY, InterpolableNumber::create(rect.y()));
+    result->set(RectWidth, InterpolableNumber::create(rect.width()));
+    result->set(RectHeight, InterpolableNumber::create(rect.height()));
+    return InterpolationValue::create(*this, result.release());
+}
+
+PassRefPtrWillBeRawPtr<SVGPropertyBase> SVGRectInterpolationType::appliedSVGValue(const InterpolableValue& interpolableValue, const NonInterpolableValue*) const
+{
+    const InterpolableList& list = toInterpolableList(interpolableValue);
+    RefPtrWillBeRawPtr<SVGRect> result = SVGRect::create();
+    result->setX(toInterpolableNumber(list.get(RectX))->value());
+    result->setY(toInterpolableNumber(list.get(RectY))->value());
+    result->setWidth(toInterpolableNumber(list.get(RectWidth))->value());
+    result->setHeight(toInterpolableNumber(list.get(RectHeight))->value());
+    return result;
+}
+
+} // namespace blink