SVGMPathElement.cpp [plain text]
#include "config.h"
#include "SVGMPathElement.h"
#include "Document.h"
#include "SVGAnimateMotionElement.h"
#include "SVGDocumentExtensions.h"
#include "SVGNames.h"
#include "SVGPathElement.h"
#include "XLinkNames.h"
#include <wtf/NeverDestroyed.h>
namespace WebCore {
DEFINE_ANIMATED_STRING(SVGMPathElement, XLinkNames::hrefAttr, Href, href)
DEFINE_ANIMATED_BOOLEAN(SVGMPathElement, SVGNames::externalResourcesRequiredAttr, ExternalResourcesRequired, externalResourcesRequired)
BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGMPathElement)
REGISTER_LOCAL_ANIMATED_PROPERTY(href)
REGISTER_LOCAL_ANIMATED_PROPERTY(externalResourcesRequired)
END_REGISTER_ANIMATED_PROPERTIES
inline SVGMPathElement::SVGMPathElement(const QualifiedName& tagName, Document& document)
: SVGElement(tagName, document)
{
ASSERT(hasTagName(SVGNames::mpathTag));
registerAnimatedPropertiesForSVGMPathElement();
}
PassRefPtr<SVGMPathElement> SVGMPathElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(new SVGMPathElement(tagName, document));
}
SVGMPathElement::~SVGMPathElement()
{
clearResourceReferences();
}
void SVGMPathElement::buildPendingResource()
{
clearResourceReferences();
if (!inDocument())
return;
String id;
Element* target = SVGURIReference::targetElementFromIRIString(href(), document(), &id);
if (!target) {
if (document().accessSVGExtensions()->isPendingResource(this, id))
return;
if (!id.isEmpty()) {
document().accessSVGExtensions()->addPendingResource(id, this);
ASSERT(hasPendingResources());
}
} else if (target->isSVGElement()) {
document().accessSVGExtensions()->addElementReferencingTarget(this, toSVGElement(target));
}
targetPathChanged();
}
void SVGMPathElement::clearResourceReferences()
{
document().accessSVGExtensions()->removeAllTargetReferencesForElement(this);
}
Node::InsertionNotificationRequest SVGMPathElement::insertedInto(ContainerNode& rootParent)
{
SVGElement::insertedInto(rootParent);
if (rootParent.inDocument())
return InsertionShouldCallDidNotifySubtreeInsertions;
return InsertionDone;
}
void SVGMPathElement::didNotifySubtreeInsertions(ContainerNode*)
{
buildPendingResource();
}
void SVGMPathElement::removedFrom(ContainerNode& rootParent)
{
SVGElement::removedFrom(rootParent);
notifyParentOfPathChange(&rootParent);
if (rootParent.inDocument())
clearResourceReferences();
}
bool SVGMPathElement::isSupportedAttribute(const QualifiedName& attrName)
{
static NeverDestroyed<HashSet<QualifiedName>> supportedAttributes;
if (supportedAttributes.get().isEmpty()) {
SVGURIReference::addSupportedAttributes(supportedAttributes);
SVGExternalResourcesRequired::addSupportedAttributes(supportedAttributes);
}
return supportedAttributes.get().contains<SVGAttributeHashTranslator>(attrName);
}
void SVGMPathElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
{
if (!isSupportedAttribute(name)) {
SVGElement::parseAttribute(name, value);
return;
}
if (SVGURIReference::parseAttribute(name, value))
return;
if (SVGExternalResourcesRequired::parseAttribute(name, value))
return;
ASSERT_NOT_REACHED();
}
void SVGMPathElement::svgAttributeChanged(const QualifiedName& attrName)
{
if (!isSupportedAttribute(attrName)) {
SVGElement::svgAttributeChanged(attrName);
return;
}
SVGElementInstance::InvalidationGuard invalidationGuard(this);
if (SVGURIReference::isKnownAttribute(attrName)) {
buildPendingResource();
return;
}
if (SVGExternalResourcesRequired::isKnownAttribute(attrName))
return;
ASSERT_NOT_REACHED();
}
SVGPathElement* SVGMPathElement::pathElement()
{
Element* target = targetElementFromIRIString(href(), document());
if (target && target->hasTagName(SVGNames::pathTag))
return toSVGPathElement(target);
return 0;
}
void SVGMPathElement::targetPathChanged()
{
notifyParentOfPathChange(parentNode());
}
void SVGMPathElement::notifyParentOfPathChange(ContainerNode* parent)
{
if (parent && isSVGAnimateMotionElement(parent))
toSVGAnimateMotionElement(parent)->updateAnimationPath();
}
}