SVG Web Animations: Add SVGIntegerOptionalIntegerInterpolationType

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

Index: third_party/WebKit/Source/core/animation/SVGIntegerOptionalIntegerInterpolationType.cpp
diff --git a/third_party/WebKit/Source/core/animation/SVGIntegerOptionalIntegerInterpolationType.cpp b/third_party/WebKit/Source/core/animation/SVGIntegerOptionalIntegerInterpolationType.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..5292ce2280eca71eaa3753fbd0a00ab7e69dcb70
--- /dev/null
+++ b/third_party/WebKit/Source/core/animation/SVGIntegerOptionalIntegerInterpolationType.cpp
@@ -0,0 +1,53 @@
+// 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/SVGIntegerOptionalIntegerInterpolationType.h"
+
+#include "core/animation/InterpolationEnvironment.h"
+#include "core/animation/StringKeyframe.h"
+#include "core/svg/SVGIntegerOptionalInteger.h"
+#include "core/svg/properties/SVGAnimatedProperty.h"
+
+namespace blink {
+
+namespace {
+
+PassRefPtrWillBeRawPtr<SVGInteger> toPositiveInteger(const InterpolableValue* number)
+{
+    return SVGInteger::create(clampTo<int>(roundf(toInterpolableNumber(number)->value()), 1));
+}
+
+} // namespace
+
+PassOwnPtr<InterpolationValue> SVGIntegerOptionalIntegerInterpolationType::maybeConvertNeutral() const
+{
+    return InterpolationValue::create(*this, InterpolableNumber::create(0));
+}
+
+PassOwnPtr<InterpolationValue> SVGIntegerOptionalIntegerInterpolationType::maybeConvertSVGValue(const SVGPropertyBase& svgValue) const
+{
+    if (svgValue.type() != AnimatedIntegerOptionalInteger)
+        return nullptr;
+    const SVGIntegerOptionalInteger& integerOptionalInteger = toSVGIntegerOptionalInteger(svgValue);
+    OwnPtr<InterpolableList> result = InterpolableList::create(2);
+    result->set(0, InterpolableNumber::create(integerOptionalInteger.firstInteger()->value()));
+    result->set(1, InterpolableNumber::create(integerOptionalInteger.secondInteger()->value()));
+    return InterpolationValue::create(*this, result.release());
+}
+
+PassOwnPtr<InterpolationValue> SVGIntegerOptionalIntegerInterpolationType::maybeConvertUnderlyingValue(const InterpolationEnvironment& environment) const
+{
+    return maybeConvertSVGValue(environment.svgBaseValue());
+}
+
+RefPtrWillBeRawPtr<SVGPropertyBase> SVGIntegerOptionalIntegerInterpolationType::appliedSVGValue(const InterpolableValue& interpolableValue, const NonInterpolableValue*) const
+{
+    const InterpolableList& list = toInterpolableList(interpolableValue);
+    return SVGIntegerOptionalInteger::create(
+        toPositiveInteger(list.get(0)),
+        toPositiveInteger(list.get(1)));
+}
+
+} // namespace blink