[svg2] Make 'x' and 'y' presentation attributes

Source/core/svg/SVGUseElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
  * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved.
  * Copyright (C) 2011 Torch Mobile (Beijing) Co. Ltd. All rights reserved.
  * Copyright (C) 2012 University of Szeged
  * Copyright (C) 2012 Renata Hodovan <reni@webkit.org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 164 matching lines @@
             shadowElement->setAttribute(SVGNames::widthAttr, AtomicString(use.width()->currentValue()->valueAsString()));
         else
             shadowElement->setAttribute(SVGNames::widthAttr, originalElement.getAttribute(SVGNames::widthAttr));
         if (use.height()->isSpecified())
             shadowElement->setAttribute(SVGNames::heightAttr, AtomicString(use.height()->currentValue()->valueAsString()));
         else
             shadowElement->setAttribute(SVGNames::heightAttr, originalElement.getAttribute(SVGNames::heightAttr));
     }
 }
 
+bool SVGUseElement::isPresentationAttribute(const QualifiedName& attrName) const
+{
+    if (attrName == SVGNames::xAttr || attrName == SVGNames::yAttr)
+        return true;
+    return SVGGraphicsElement::isPresentationAttribute(attrName);
+}
+
+void SVGUseElement::collectStyleForPresentationAttribute(const QualifiedName& name, const AtomicString& value, MutableStylePropertySet* style)
+{
+    RefPtrWillBeRawPtr<SVGAnimatedPropertyBase> property = propertyFromAttribute(name);
+    if (property == m_x)
+        addPropertyToPresentationAttributeStyle(style, CSSPropertyX, m_x->currentValue()->valueInSpecifiedUnits(), m_x->currentValue()->cssUnitTypeQuirk());
+    else if (property == m_y)
+        addPropertyToPresentationAttributeStyle(style, CSSPropertyY, m_y->currentValue()->valueInSpecifiedUnits(), m_y->currentValue()->cssUnitTypeQuirk());
+    else
+        SVGGraphicsElement::collectStyleForPresentationAttribute(name, value, style);
+}
+
 void SVGUseElement::svgAttributeChanged(const QualifiedName& attrName)
 {
     if (!isSupportedAttribute(attrName)) {
         SVGGraphicsElement::svgAttributeChanged(attrName);
         return;
     }
 
     SVGElement::InvalidationGuard invalidationGuard(this);
 
+    if (attrName == SVGNames::xAttr
+        || attrName == SVGNames::yAttr) {
+        invalidateSVGPresentationAttributeStyle();
+        setNeedsStyleRecalc(LocalStyleChange,
+            StyleChangeReasonForTracing::fromAttribute(attrName));
+    }
+
     RenderObject* renderer = this->renderer();
     if (attrName == SVGNames::xAttr
         || attrName == SVGNames::yAttr
         || attrName == SVGNames::widthAttr
         || attrName == SVGNames::heightAttr) {
         updateRelativeLengthsInformation();
         if (m_targetElementInstance) {
             ASSERT(m_targetElementInstance->correspondingElement());
             transferUseWidthAndHeightIfNeeded(*this, m_targetElementInstance.get(), *m_targetElementInstance->correspondingElement());
         }
@@ skipping 551 matching lines @@
 
     if (m_resource)
         m_resource->removeClient(this);
 
     m_resource = resource;
     if (m_resource)
         m_resource->addClient(this);
 }
 
 }