Refactor SVGAnimatedLength negative values mode

third_party/WebKit/Source/core/svg/SVGLength.cpp

 /*
  * Copyright (C) 2004, 2005, 2006 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
  * Copyright (C) 2007 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 179 matching lines @@
     typedef HashMap<QualifiedName, SVGLengthMode> LengthModeForLengthAttributeMap;
     DEFINE_STATIC_LOCAL(LengthModeForLengthAttributeMap, s_lengthModeMap, ());
 
     if (s_lengthModeMap.isEmpty()) {
         s_lengthModeMap.set(SVGNames::xAttr, SVGLengthMode::Width);
         s_lengthModeMap.set(SVGNames::yAttr, SVGLengthMode::Height);
         s_lengthModeMap.set(SVGNames::cxAttr, SVGLengthMode::Width);
         s_lengthModeMap.set(SVGNames::cyAttr, SVGLengthMode::Height);
         s_lengthModeMap.set(SVGNames::dxAttr, SVGLengthMode::Width);
         s_lengthModeMap.set(SVGNames::dyAttr, SVGLengthMode::Height);
+        s_lengthModeMap.set(SVGNames::frAttr, SVGLengthMode::Other);
         s_lengthModeMap.set(SVGNames::fxAttr, SVGLengthMode::Width);
         s_lengthModeMap.set(SVGNames::fyAttr, SVGLengthMode::Height);
         s_lengthModeMap.set(SVGNames::rAttr, SVGLengthMode::Other);
         s_lengthModeMap.set(SVGNames::rxAttr, SVGLengthMode::Width);
         s_lengthModeMap.set(SVGNames::ryAttr, SVGLengthMode::Height);
         s_lengthModeMap.set(SVGNames::widthAttr, SVGLengthMode::Width);
         s_lengthModeMap.set(SVGNames::heightAttr, SVGLengthMode::Height);
         s_lengthModeMap.set(SVGNames::x1Attr, SVGLengthMode::Width);
         s_lengthModeMap.set(SVGNames::x2Attr, SVGLengthMode::Width);
         s_lengthModeMap.set(SVGNames::y1Attr, SVGLengthMode::Height);
         s_lengthModeMap.set(SVGNames::y2Attr, SVGLengthMode::Height);
         s_lengthModeMap.set(SVGNames::refXAttr, SVGLengthMode::Width);
         s_lengthModeMap.set(SVGNames::refYAttr, SVGLengthMode::Height);
         s_lengthModeMap.set(SVGNames::markerWidthAttr, SVGLengthMode::Width);
         s_lengthModeMap.set(SVGNames::markerHeightAttr, SVGLengthMode::Height);
         s_lengthModeMap.set(SVGNames::textLengthAttr, SVGLengthMode::Width);
         s_lengthModeMap.set(SVGNames::startOffsetAttr, SVGLengthMode::Width);
     }
 
     if (s_lengthModeMap.contains(attrName))
         return s_lengthModeMap.get(attrName);
 
     return SVGLengthMode::Other;
 }
 
+bool SVGLength::negativeValuesForbiddenForAnimatedLengthAttribute(const QualifiedName& attrName)
+{
+    DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, s_noNegativeValuesSet, ());
+
+    if (s_noNegativeValuesSet.isEmpty()) {
+        s_noNegativeValuesSet.add(SVGNames::frAttr);
+        s_noNegativeValuesSet.add(SVGNames::rAttr);
+        s_noNegativeValuesSet.add(SVGNames::rxAttr);
+        s_noNegativeValuesSet.add(SVGNames::ryAttr);
+        s_noNegativeValuesSet.add(SVGNames::widthAttr);
+        s_noNegativeValuesSet.add(SVGNames::heightAttr);
+        s_noNegativeValuesSet.add(SVGNames::markerWidthAttr);
+        s_noNegativeValuesSet.add(SVGNames::markerHeightAttr);
+        s_noNegativeValuesSet.add(SVGNames::textLengthAttr);
+    }
+
+    return s_noNegativeValuesSet.contains(attrName);
+}
+
 void SVGLength::add(PassRefPtrWillBeRawPtr<SVGPropertyBase> other, SVGElement* contextElement)
 {
     SVGLengthContext lengthContext(contextElement);
     setValue(value(lengthContext) + toSVGLength(other)->value(lengthContext), lengthContext);
 }
 
 void SVGLength::calculateAnimatedValue(SVGAnimationElement* animationElement,
     float percentage,
     unsigned repeatCount,
     PassRefPtrWillBeRawPtr<SVGPropertyBase> fromValue,
@@ skipping 19 matching lines @@
 
 float SVGLength::calculateDistance(PassRefPtrWillBeRawPtr<SVGPropertyBase> toValue, SVGElement* contextElement)
 {
     SVGLengthContext lengthContext(contextElement);
     RefPtrWillBeRawPtr<SVGLength> toLength = toSVGLength(toValue);
 
     return fabsf(toLength->value(lengthContext) - value(lengthContext));
 }
 
 }