RenderSVGResourceContainer.h [plain text]
#ifndef RenderSVGResourceContainer_h
#define RenderSVGResourceContainer_h
#if ENABLE(SVG)
#include "RenderSVGHiddenContainer.h"
#include "RenderSVGResource.h"
namespace WebCore {
class RenderSVGResourceContainer : public RenderSVGHiddenContainer,
public RenderSVGResource {
public:
RenderSVGResourceContainer(SVGStyledElement* node)
: RenderSVGHiddenContainer(node)
, RenderSVGResource()
, m_id(node->getIDAttribute())
{
ASSERT(node->document());
node->document()->accessSVGExtensions()->addResource(m_id, this);
}
virtual ~RenderSVGResourceContainer()
{
ASSERT(node());
ASSERT(node()->document());
node()->document()->accessSVGExtensions()->removeResource(m_id);
}
void idChanged()
{
ASSERT(node());
ASSERT(node()->document());
SVGDocumentExtensions* extensions = node()->document()->accessSVGExtensions();
extensions->removeResource(m_id);
m_id = static_cast<Element*>(node())->getIDAttribute();
if (extensions->isPendingResource(m_id)) {
OwnPtr<HashSet<SVGStyledElement*> > clients(extensions->removePendingResource(m_id));
if (clients->isEmpty())
return;
HashSet<SVGStyledElement*>::const_iterator it = clients->begin();
const HashSet<SVGStyledElement*>::const_iterator end = clients->end();
for (; it != end; ++it) {
if (RenderObject* renderer = (*it)->renderer())
renderer->setNeedsLayout(true);
}
}
extensions->addResource(m_id, this);
}
virtual bool isSVGResourceContainer() const { return true; }
virtual bool drawsContents() { return false; }
virtual RenderSVGResourceContainer* toRenderSVGResourceContainer() { return this; }
private:
AtomicString m_id;
};
inline RenderSVGResourceContainer* getRenderSVGResourceContainerById(Document* document, const AtomicString& id)
{
if (id.isEmpty())
return 0;
if (RenderSVGResourceContainer* renderResource = document->accessSVGExtensions()->resourceById(id))
return renderResource;
return 0;
}
template<typename Renderer>
Renderer* getRenderSVGResourceById(Document* document, const AtomicString& id)
{
if (RenderSVGResourceContainer* container = getRenderSVGResourceContainerById(document, id))
return container->cast<Renderer>();
return 0;
}
}
#endif
#endif