void RenderSVGResourceContainer::registerResource()
{
SVGDocumentExtensions& extensions = svgExtensionsFromElement(element());
if (!extensions.hasPendingResource(m_id)) {
extensions.addResource(m_id, this);
return;
}
OwnPtr<SVGDocumentExtensions::SVGPendingElements> clients(extensions.removePendingResource(m_id));
// Cache us with the new id.
extensions.addResource(m_id, this);
// Update cached resources of pending clients.
const SVGDocumentExtensions::SVGPendingElements::const_iterator end = clients->end();
for (SVGDocumentExtensions::SVGPendingElements::const_iterator it = clients->begin(); it != end; ++it) {
ASSERT((*it)->hasPendingResources());
extensions.clearHasPendingResourcesIfPossible(*it);
RenderObject* renderer = (*it)->renderer();
if (!renderer)
continue;
StyleDifference diff;
diff.setNeedsFullLayout();
SVGResourcesCache::clientStyleChanged(renderer, diff, renderer->style());
renderer->setNeedsLayoutAndFullPaintInvalidation();
}
}
void RenderSVGResourceContainer::idChanged()
{
// Invalidate all our current clients.
removeAllClientsFromCache();
// Remove old id, that is guaranteed to be present in cache.
svgExtensionsFromElement(element()).removeResource(m_id);
m_id = element().getIdAttribute();
registerResource();
}
void LayoutSVGResourceContainer::willBeDestroyed()
{
// Detach all clients referring to this resource. If the resource itself is
// a client, it will be detached from any such resources by the call to
// LayoutSVGHiddenContainer::willBeDestroyed() below.
detachAllClients();
for (SVGResourceClient* client : m_resourceClients)
client->filterWillBeDestroyed(toSVGFilterElement(element()));
m_resourceClients.clear();
LayoutSVGHiddenContainer::willBeDestroyed();
if (m_registered)
svgExtensionsFromElement(element()).removeResource(m_id);
}
void LayoutSVGResourceContainer::detachAllClients()
{
for (auto* client : m_clients) {
// Unlink the resource from the client's SVGResources. (The actual
// removal will be signaled after processing all the clients.)
SVGResources* resources = SVGResourcesCache::cachedResourcesForLayoutObject(client);
ASSERT(resources); // Or else the client wouldn't be in the list in the first place.
resources->resourceDestroyed(this);
// Add a pending resolution based on the id of the old resource.
Element* clientElement = toElement(client->node());
svgExtensionsFromElement(clientElement).addPendingResource(m_id, clientElement);
}
removeAllClientsFromCache();
}
void LayoutSVGResourceContainer::registerResource()
{
SVGDocumentExtensions& extensions = svgExtensionsFromElement(element());
if (!extensions.hasPendingResource(m_id)) {
extensions.addResource(m_id, this);
return;
}
SVGDocumentExtensions::SVGPendingElements* clients(extensions.removePendingResource(m_id));
// Cache us with the new id.
extensions.addResource(m_id, this);
// Update cached resources of pending clients.
for (const auto& pendingClient : *clients) {
ASSERT(pendingClient->hasPendingResources());
extensions.clearHasPendingResourcesIfPossible(pendingClient);
LayoutObject* layoutObject = pendingClient->layoutObject();
if (!layoutObject)
continue;
const ComputedStyle& style = layoutObject->styleRef();
// If the client has a layer (is a non-SVGElement) we need to signal
// invalidation in the same way as is done in markAllResourceClientsForInvalidation above.
if (layoutObject->hasLayer() && resourceType() == FilterResourceType) {
if (style.hasFilter())
toLayoutBoxModelObject(layoutObject)->layer()->filterNeedsPaintInvalidation();
// If this is the SVG root, we could have both 'filter' and
// '-webkit-filter' applied, so we need to do the invalidation
// below as well, unless we can optimistically determine that
// 'filter' does not apply to the element in question.
if (!layoutObject->isSVGRoot() || !style.svgStyle().hasFilter())
continue;
}
StyleDifference diff;
diff.setNeedsFullLayout();
SVGResourcesCache::clientStyleChanged(layoutObject, diff, style);
layoutObject->setNeedsLayoutAndFullPaintInvalidation(LayoutInvalidationReason::SvgResourceInvalidated);
}
}
RenderSVGResourceContainer::~RenderSVGResourceContainer()
{
if (m_registered)
svgExtensionsFromElement(element()).removeResource(m_id);
}