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

Source/core/svg/SVGSVGElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2006 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2010 Rob Buis <buis@kde.org>
  * Copyright (C) 2007 Apple Inc. All rights reserved.
  * Copyright (C) 2014 Google, Inc.
  *
  * 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 225 matching lines @@
     } else if (SVGZoomAndPan::parseAttribute(name, value)) {
     } else {
         parseAttributeNew(name, value);
     }
 }
 
 bool SVGSVGElement::isPresentationAttribute(const QualifiedName& name) const
 {
     if (isOutermostSVGSVGElement() && (name == SVGNames::widthAttr || name == SVGNames::heightAttr))
         return true;
+    else if (name == SVGNames::xAttr || name == SVGNames::yAttr)
+        return true;
+
     return SVGGraphicsElement::isPresentationAttribute(name);
 }
 
 void SVGSVGElement::collectStyleForPresentationAttribute(const QualifiedName& name, const AtomicString& value, MutableStylePropertySet* style)
 {
-    if (isOutermostSVGSVGElement() && (name == SVGNames::widthAttr || name == SVGNames::heightAttr)) {
+    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 if (isOutermostSVGSVGElement() && (property == m_width || property == m_height)) {
         RefPtrWillBeRawPtr<SVGLength> length = SVGLength::create(LengthModeOther);
         TrackExceptionState exceptionState;
         length->setValueAsString(value, exceptionState);
         if (!exceptionState.hadException()) {
-            if (name == SVGNames::widthAttr)
+            if (property == m_width)
                 addPropertyToPresentationAttributeStyle(style, CSSPropertyWidth, value);
-            else if (name == SVGNames::heightAttr)
+            else if (property == m_height)
                 addPropertyToPresentationAttributeStyle(style, CSSPropertyHeight, value);
         }
     } else {
         SVGGraphicsElement::collectStyleForPresentationAttribute(name, value, style);
     }
 }
 
 void SVGSVGElement::svgAttributeChanged(const QualifiedName& attrName)
 {
     bool updateRelativeLengthsOrViewBox = false;
@@ skipping 12 matching lines @@
         //
         // FIXME: For width/height animated as XML attributes on SVG
         // roots, there is an attribute synchronization missing. See
         // http://crbug.com/364807
         if (widthChanged || heightChanged) {
             RenderObject* renderObject = renderer();
             if (renderObject && renderObject->isSVGRoot()) {
                 invalidateSVGPresentationAttributeStyle();
                 setNeedsStyleRecalc(LocalStyleChange, StyleChangeReasonForTracing::create(StyleChangeReason::SVGContainerSizeChange));
             }
+        } else {
+            invalidateSVGPresentationAttributeStyle();
+            setNeedsStyleRecalc(LocalStyleChange,
+                StyleChangeReasonForTracing::fromAttribute(attrName));
         }
     }
 
     if (SVGFitToViewBox::isKnownAttribute(attrName)) {
         updateRelativeLengthsOrViewBox = true;
         if (RenderObject* object = renderer())
             object->setNeedsTransformUpdate();
     }
 
     SVGElement::InvalidationGuard invalidationGuard(this);
@@ skipping 470 matching lines @@
     visitor->trace(m_width);
     visitor->trace(m_height);
     visitor->trace(m_translation);
     visitor->trace(m_timeContainer);
     visitor->trace(m_viewSpec);
     SVGGraphicsElement::trace(visitor);
     SVGFitToViewBox::trace(visitor);
 }
 
 } // namespace blink