static void cloneDataAndChildren(SVGElement& replacementClone, SVGElement& originalClone)
{
// This assertion checks that we don't call this with the arguments backwards.
// The replacement clone is new and so it's not installed in a parent yet.
ASSERT(!replacementClone.parentNode());
replacementClone.cloneDataFromElement(originalClone);
originalClone.cloneChildNodes(&replacementClone);
associateReplacementClonesWithOriginals(replacementClone, originalClone);
removeDisallowedElementsFromSubtree(replacementClone);
}
static void associateReplacementClonesWithOriginals(SVGElement& replacementClone, SVGElement& originalClone)
{
// This assertion checks that we don't call this with the arguments backwards.
// The replacement clone is new and so it's not installed in a parent yet.
ASSERT(!replacementClone.parentNode());
// The loop below works because we are associating these clones immediately, before
// doing transformations like removing disallowed elements or expanding elements.
associateReplacementCloneWithOriginal(replacementClone, originalClone);
for (auto pair : descendantsOfType<SVGElement>(replacementClone, originalClone))
associateReplacementCloneWithOriginal(pair.first, pair.second);
}
void dumpInstanceTree(unsigned int& depth, String& text, SVGElementInstance* targetInstance)
{
SVGElement* element = targetInstance->correspondingElement();
ASSERT(element);
String elementId = element->getIDAttribute();
String elementNodeName = element->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 (parentNode=%s, firstChild=%s, correspondingElement=%s, id=%s)\n",
parentNodeName.latin1().data(), firstChildNodeName.latin1().data(), elementNodeName.latin1().data(), elementId.latin1().data());
depth++;
for (SVGElementInstance* instance = targetInstance->firstChild(); instance; instance = instance->nextSibling())
dumpInstanceTree(depth, text, instance);
depth--;
}
void SVGUseElement::updateContainerOffsets()
{
if (!m_targetElementInstance)
return;
// Update root container offset (not reachable through instance tree)
SVGElement* shadowRoot = m_targetElementInstance->shadowTreeElement();
ASSERT(shadowRoot);
Node* parentNode = shadowRoot->parentNode();
ASSERT(parentNode);
ASSERT(parentNode->isSVGElement());
ASSERT(parentNode->hasTagName(SVGNames::gTag));
ASSERT(static_cast<SVGGElement*>(parentNode)->isShadowTreeContainerElement());
SVGShadowTreeContainerElement* containerElement = static_cast<SVGShadowTreeContainerElement*>(parentNode);
containerElement->setContainerOffset(x(), y());
// Update whole subtree, scanning for shadow container elements, marking a cloned use subtree
updateContainerOffset(m_targetElementInstance.get());
if (renderer())
renderer()->setNeedsLayout(true);
}
void SVGUseElement::updateContainerOffsets()
{
if (!m_targetElementInstance)
return;
// Update root container offset (not reachable through instance tree)
SVGElement* shadowRoot = m_targetElementInstance->shadowTreeElement();
ASSERT(shadowRoot);
ContainerNode* parentNode = shadowRoot->parentNode();
ASSERT(parentNode);
ASSERT(parentNode->isSVGElement());
ASSERT(parentNode->hasTagName(SVGNames::gTag));
ASSERT(static_cast<SVGGElement*>(parentNode)->isShadowTreeContainerElement());
SVGShadowTreeContainerElement* containerElement = static_cast<SVGShadowTreeContainerElement*>(parentNode);
containerElement->setContainerOffset(x(), y());
// Update whole subtree, scanning for shadow container elements, marking a cloned use subtree
updateContainerOffset(m_targetElementInstance.get());
if (RenderObject* object = renderer())
RenderSVGResource::markForLayoutAndParentResourceInvalidation(object);
}