Web Animations: Animate d presentation attribute using InterpolableValue

third_party/WebKit/Source/core/animation/PathInterpolation.h

+// Copyright 2016 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.
+
+#ifndef PathInterpolation_h
+#define PathInterpolation_h
+
+#include "core/animation/InterpolationType.h"
+#include "core/svg/SVGPathByteStream.h"
+
+namespace blink {
+
+class PathInterpolation {

[alancutter (OOO until 2018), 2016/01/15 05:16:44]

s/PathInterpolation/PathInterpolationFunctions/ for consistency with other
*InterpolationFunctions utility classes.

[Eric Willigers, 2016/01/18 06:19:54]

Done.

+public:
+    static PassRefPtr<SVGPathByteStream> appliedValue(const InterpolableValue&, const NonInterpolableValue*);
+
+    static void composite(UnderlyingValue&, double underlyingFraction, const InterpolationValue&);
+
+    static PassOwnPtr<InterpolationValue> convertValue(const InterpolationType&, const SVGPathByteStream&);
+
+    static PassOwnPtr<InterpolationValue> maybeConvertNeutral(const InterpolationType&, const UnderlyingValue&, InterpolationType::ConversionCheckers&);
+
+    static PassOwnPtr<PairwisePrimitiveInterpolation> mergeSingleConversions(const InterpolationType&, InterpolationValue& startValue, InterpolationValue& endValue);
+};
+
+} // namespace blink
+
+#endif // PathInterpolation_h