bool SVGUseElement::hasCycleUseReferencing(SVGUseElement* use, ContainerNode* targetInstance, SVGElement*& newTarget)
{
ASSERT(referencedScope());
Element* targetElement = SVGURIReference::targetElementFromIRIString(use->hrefString(), *referencedScope());
newTarget = 0;
if (targetElement && targetElement->isSVGElement())
newTarget = toSVGElement(targetElement);
if (!newTarget)
return false;
// Shortcut for self-references
if (newTarget == this)
return true;
AtomicString targetId = newTarget->getIdAttribute();
ContainerNode* instance = targetInstance->parentNode();
while (instance && instance->isSVGElement()) {
SVGElement* element = toSVGElement(instance);
if (element->hasID() && element->getIdAttribute() == targetId && element->document() == newTarget->document())
return true;
instance = instance->parentNode();
}
return false;
}
RenderSVGResourceContainer::RenderSVGResourceContainer(SVGElement& element, PassRef<RenderStyle> style)
: RenderSVGHiddenContainer(element, std::move(style))
, m_id(element.getIdAttribute())
, m_registered(false)
, m_isInvalidating(false)
{
}
static void dumpInstanceTree(unsigned int& depth, String& text, SVGElementInstance* targetInstance)
{
SVGElement* element = targetInstance->correspondingElement();
ASSERT(element);
if (element->hasTagName(SVGNames::useTag)) {
if (toSVGUseElement(element)->cachedDocumentIsStillLoading())
return;
}
SVGElement* shadowTreeElement = targetInstance->shadowTreeElement();
ASSERT(shadowTreeElement);
SVGUseElement* directUseElement = targetInstance->directUseElement();
String directUseElementName = directUseElement ? directUseElement->nodeName() : "null";
String elementId = element->getIdAttribute();
String elementNodeName = element->nodeName();
String shadowTreeElementNodeName = shadowTreeElement->nodeName();
String parentNodeName = element->parentNode() ? element->parentNode()->nodeName() : "null";
String firstChildNodeName = element->firstChild() ? element->firstChild()->nodeName() : "null";
for (unsigned int i = 0; i < depth; ++i)
text += " ";
text += String::format("SVGElementInstance this=%p, (parentNode=%s (%p), firstChild=%s (%p), correspondingElement=%s (%p), directUseElement=%s (%p), shadowTreeElement=%s (%p), id=%s)\n",
targetInstance, parentNodeName.latin1().data(), element->parentNode(), firstChildNodeName.latin1().data(), element->firstChild(),
elementNodeName.latin1().data(), element, directUseElementName.latin1().data(), directUseElement, shadowTreeElementNodeName.latin1().data(), shadowTreeElement, elementId.latin1().data());
for (unsigned int i = 0; i < depth; ++i)
text += " ";
const HashSet<SVGElementInstance*>& elementInstances = element->instancesForElement();
text += "Corresponding element is associated with " + String::number(elementInstances.size()) + " instance(s):\n";
const HashSet<SVGElementInstance*>::const_iterator end = elementInstances.end();
for (HashSet<SVGElementInstance*>::const_iterator it = elementInstances.begin(); it != end; ++it) {
for (unsigned int i = 0; i < depth; ++i)
text += " ";
text += String::format(" -> SVGElementInstance this=%p, (refCount: %i, shadowTreeElement in document? %i)\n",
*it, (*it)->refCount(), (*it)->shadowTreeElement()->inDocument());
}
++depth;
for (SVGElementInstance* instance = targetInstance->firstChild(); instance; instance = instance->nextSibling())
dumpInstanceTree(depth, text, instance);
--depth;
}
static void writeSVGPaintingResource(TextStream& ts, RenderSVGResource* resource)
{
if (resource->resourceType() == SolidColorResourceType) {
ts << "[type=SOLID] [color=" << static_cast<RenderSVGResourceSolidColor*>(resource)->color() << "]";
return;
}
// All other resources derive from RenderSVGResourceContainer
RenderSVGResourceContainer* container = static_cast<RenderSVGResourceContainer*>(resource);
SVGElement* element = container->element();
ASSERT(element);
if (resource->resourceType() == PatternResourceType)
ts << "[type=PATTERN]";
else if (resource->resourceType() == LinearGradientResourceType)
ts << "[type=LINEAR-GRADIENT]";
else if (resource->resourceType() == RadialGradientResourceType)
ts << "[type=RADIAL-GRADIENT]";
ts << " [id=\"" << element->getIdAttribute() << "\"]";
}
static void writeSVGPaintingResource(TextStream& ts, const SVGPaintDescription& paintDescription)
{
ASSERT(paintDescription.isValid);
if (!paintDescription.resource) {
ts << "[type=SOLID] [color=" << paintDescription.color << "]";
return;
}
LayoutSVGResourcePaintServer* paintServerContainer = paintDescription.resource;
SVGElement* element = paintServerContainer->element();
ASSERT(element);
if (paintServerContainer->resourceType() == PatternResourceType)
ts << "[type=PATTERN]";
else if (paintServerContainer->resourceType() == LinearGradientResourceType)
ts << "[type=LINEAR-GRADIENT]";
else if (paintServerContainer->resourceType() == RadialGradientResourceType)
ts << "[type=RADIAL-GRADIENT]";
ts << " [id=\"" << element->getIdAttribute() << "\"]";
}