SVGElementInstance* SVGUseElement::instanceForShadowTreeElement(Node* element) const
{
if (!m_targetElementInstance) {
ASSERT(!inDocument());
return 0;
}
return instanceForShadowTreeElement(element, m_targetElementInstance.get());
}
SVGElementInstance* SVGUseElement::instanceForShadowTreeElement(Node* element, SVGElementInstance* instance) const
{
ASSERT(element);
ASSERT(instance);
ASSERT(instance->shadowTreeElement());
if (element == instance->shadowTreeElement())
return instance;
for (SVGElementInstance* current = instance->firstChild(); current; current = current->nextSibling()) {
SVGElementInstance* search = instanceForShadowTreeElement(element, current);
if (search)
return search;
}
return 0;
}
SVGElementInstance* SVGUseElement::instanceForShadowTreeElement(Node* element, SVGElementInstance* instance) const
{
ASSERT(element);
ASSERT(instance);
// We're dispatching a mutation event during shadow tree construction
// this instance hasn't yet been associated to a shadowTree element.
if (!instance->shadowTreeElement())
return 0;
if (element == instance->shadowTreeElement())
return instance;
for (SVGElementInstance* current = instance->firstChild(); current; current = current->nextSibling()) {
if (SVGElementInstance* search = instanceForShadowTreeElement(element, current))
return search;
}
return 0;
}
SVGElementInstance* SVGUseElement::instanceForShadowTreeElement(Node* element) const
{
return instanceForShadowTreeElement(element, m_targetElementInstance.get());
}