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/*
* Copyright (C) 2006 Apple Inc. All rights reserved.
* Copyright (C) 2008 Nikolas Zimmermann <zimmermann@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 "SVGForeignObjectElement.h"
#include "Attribute.h"
#include "CSSPropertyNames.h"
#include "NodeRenderingContext.h"
#include "RenderSVGForeignObject.h"
#include "RenderSVGResource.h"
#include "SVGElementInstance.h"
#include "SVGLength.h"
#include "SVGNames.h"
#include "XLinkNames.h"
#include <wtf/Assertions.h>
namespace WebCore {
// Animated property definitions
DEFINE_ANIMATED_LENGTH(SVGForeignObjectElement, SVGNames::xAttr, X, x)
DEFINE_ANIMATED_LENGTH(SVGForeignObjectElement, SVGNames::yAttr, Y, y)
DEFINE_ANIMATED_LENGTH(SVGForeignObjectElement, SVGNames::widthAttr, Width, width)
DEFINE_ANIMATED_LENGTH(SVGForeignObjectElement, SVGNames::heightAttr, Height, height)
DEFINE_ANIMATED_STRING(SVGForeignObjectElement, XLinkNames::hrefAttr, Href, href)
DEFINE_ANIMATED_BOOLEAN(SVGForeignObjectElement, SVGNames::externalResourcesRequiredAttr, ExternalResourcesRequired, externalResourcesRequired)
BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGForeignObjectElement)
REGISTER_LOCAL_ANIMATED_PROPERTY(x)
REGISTER_LOCAL_ANIMATED_PROPERTY(y)
REGISTER_LOCAL_ANIMATED_PROPERTY(width)
REGISTER_LOCAL_ANIMATED_PROPERTY(height)
REGISTER_LOCAL_ANIMATED_PROPERTY(href)
REGISTER_LOCAL_ANIMATED_PROPERTY(externalResourcesRequired)
REGISTER_PARENT_ANIMATED_PROPERTIES(SVGGraphicsElement)
END_REGISTER_ANIMATED_PROPERTIES
inline SVGForeignObjectElement::SVGForeignObjectElement(const QualifiedName& tagName, Document* document)
: SVGGraphicsElement(tagName, document)
, m_x(LengthModeWidth)
, m_y(LengthModeHeight)
, m_width(LengthModeWidth)
, m_height(LengthModeHeight)
{
ASSERT(hasTagName(SVGNames::foreignObjectTag));
registerAnimatedPropertiesForSVGForeignObjectElement();
}
PassRefPtr<SVGForeignObjectElement> SVGForeignObjectElement::create(const QualifiedName& tagName, Document* document)
{
return adoptRef(new SVGForeignObjectElement(tagName, document));
}
bool SVGForeignObjectElement::isSupportedAttribute(const QualifiedName& attrName)
{
DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
if (supportedAttributes.isEmpty()) {
SVGLangSpace::addSupportedAttributes(supportedAttributes);
SVGExternalResourcesRequired::addSupportedAttributes(supportedAttributes);
supportedAttributes.add(SVGNames::xAttr);
supportedAttributes.add(SVGNames::yAttr);
supportedAttributes.add(SVGNames::widthAttr);
supportedAttributes.add(SVGNames::heightAttr);
}
return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName);
}
void SVGForeignObjectElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
{
SVGParsingError parseError = NoError;
if (!isSupportedAttribute(name))
SVGGraphicsElement::parseAttribute(name, value);
else if (name == SVGNames::xAttr)
setXBaseValue(SVGLength::construct(LengthModeWidth, value, parseError));
else if (name == SVGNames::yAttr)
setYBaseValue(SVGLength::construct(LengthModeHeight, value, parseError));
else if (name == SVGNames::widthAttr)
setWidthBaseValue(SVGLength::construct(LengthModeWidth, value, parseError));
else if (name == SVGNames::heightAttr)
setHeightBaseValue(SVGLength::construct(LengthModeHeight, value, parseError));
else if (SVGLangSpace::parseAttribute(name, value)
|| SVGExternalResourcesRequired::parseAttribute(name, value)) {
} else
ASSERT_NOT_REACHED();
reportAttributeParsingError(parseError, name, value);
}
void SVGForeignObjectElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (!isSupportedAttribute(attrName)) {
SVGGraphicsElement::svgAttributeChanged(attrName);
return;
}
SVGElementInstance::InvalidationGuard invalidationGuard(this);
bool isLengthAttribute = attrName == SVGNames::xAttr
|| attrName == SVGNames::yAttr
|| attrName == SVGNames::widthAttr
|| attrName == SVGNames::heightAttr;
if (isLengthAttribute)
updateRelativeLengthsInformation();
if (RenderObject* renderer = this->renderer())
RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
}
RenderObject* SVGForeignObjectElement::createRenderer(RenderArena* arena, RenderStyle*)
{
return new (arena) RenderSVGForeignObject(this);
}
bool SVGForeignObjectElement::childShouldCreateRenderer(const NodeRenderingContext& childContext) const
{
// Disallow arbitary SVG content. Only allow proper <svg xmlns="svgNS"> subdocuments.
if (childContext.node()->isSVGElement())
return childContext.node()->hasTagName(SVGNames::svgTag);
// Skip over SVG rules which disallow non-SVG kids
return StyledElement::childShouldCreateRenderer(childContext);
}
bool SVGForeignObjectElement::rendererIsNeeded(const NodeRenderingContext& context)
{
// Suppress foreignObject renderers in SVG hidden containers.
// (https://bugs.webkit.org/show_bug.cgi?id=87297)
// Note that we currently do not support foreignObject instantiation via <use>, hence it is safe
// to use parentElement() here. If that changes, this method should be updated to use
// parentOrShadowHostElement() instead.
Element* ancestor = parentElement();
while (ancestor && ancestor->isSVGElement()) {
if (ancestor->renderer() && ancestor->renderer()->isSVGHiddenContainer())
return false;
ancestor = ancestor->parentElement();
}
return SVGGraphicsElement::rendererIsNeeded(context);
}
bool SVGForeignObjectElement::selfHasRelativeLengths() const
{
return x().isRelative()
|| y().isRelative()
|| width().isRelative()
|| height().isRelative();
}
}
#endif
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