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/*
* Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
*
* 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.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#if ENABLE(SVG)
#include "SVGGElement.h"
#include "RenderSVGHiddenContainer.h"
#include "RenderSVGResource.h"
#include "RenderSVGTransformableContainer.h"
#include "SVGElementInstance.h"
#include "SVGNames.h"
namespace WebCore {
// Animated property definitions
DEFINE_ANIMATED_BOOLEAN(SVGGElement, SVGNames::externalResourcesRequiredAttr, ExternalResourcesRequired, externalResourcesRequired)
BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGGElement)
REGISTER_LOCAL_ANIMATED_PROPERTY(externalResourcesRequired)
REGISTER_PARENT_ANIMATED_PROPERTIES(SVGGraphicsElement)
END_REGISTER_ANIMATED_PROPERTIES
SVGGElement::SVGGElement(const QualifiedName& tagName, Document* document, ConstructionType constructionType)
: SVGGraphicsElement(tagName, document, constructionType)
{
ASSERT(hasTagName(SVGNames::gTag));
registerAnimatedPropertiesForSVGGElement();
}
PassRefPtr<SVGGElement> SVGGElement::create(const QualifiedName& tagName, Document* document)
{
return adoptRef(new SVGGElement(tagName, document));
}
bool SVGGElement::isSupportedAttribute(const QualifiedName& attrName)
{
DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
if (supportedAttributes.isEmpty()) {
SVGLangSpace::addSupportedAttributes(supportedAttributes);
SVGExternalResourcesRequired::addSupportedAttributes(supportedAttributes);
}
return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName);
}
void SVGGElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
{
if (!isSupportedAttribute(name)) {
SVGGraphicsElement::parseAttribute(name, value);
return;
}
if (SVGLangSpace::parseAttribute(name, value))
return;
if (SVGExternalResourcesRequired::parseAttribute(name, value))
return;
ASSERT_NOT_REACHED();
}
void SVGGElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (!isSupportedAttribute(attrName)) {
SVGGraphicsElement::svgAttributeChanged(attrName);
return;
}
SVGElementInstance::InvalidationGuard invalidationGuard(this);
if (RenderObject* renderer = this->renderer())
RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
}
RenderObject* SVGGElement::createRenderer(RenderArena* arena, RenderStyle* style)
{
// SVG 1.1 testsuite explicitely uses constructs like <g display="none"><linearGradient>
// We still have to create renderers for the <g> & <linearGradient> element, though the
// subtree may be hidden - we only want the resource renderers to exist so they can be
// referenced from somewhere else.
if (style->display() == NONE)
return new (arena) RenderSVGHiddenContainer(this);
return new (arena) RenderSVGTransformableContainer(this);
}
bool SVGGElement::rendererIsNeeded(const NodeRenderingContext&)
{
// Unlike SVGStyledElement::rendererIsNeeded(), we still create renderers, even if
// display is set to 'none' - which is special to SVG <g> container elements.
return parentOrShadowHostElement() && parentOrShadowHostElement()->isSVGElement();
}
}
#endif // ENABLE(SVG)
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