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/*
* Copyright (C) Research In Motion Limited 2010. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef RenderSVGResourceContainer_h
#define RenderSVGResourceContainer_h
#include "RenderSVGHiddenContainer.h"
#include "RenderSVGResource.h"
namespace WebCore {
class RenderLayer;
class RenderSVGResourceContainer : public RenderSVGHiddenContainer,
public RenderSVGResource {
public:
virtual ~RenderSVGResourceContainer();
virtual void layout() override;
virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) override final;
virtual bool isSVGResourceContainer() const override final { return true; }
static bool shouldTransformOnTextPainting(const RenderElement&, AffineTransform&);
static AffineTransform transformOnNonScalingStroke(RenderObject*, const AffineTransform& resourceTransform);
void idChanged();
void addClientRenderLayer(RenderLayer*);
void removeClientRenderLayer(RenderLayer*);
protected:
RenderSVGResourceContainer(SVGElement&, Ref<RenderStyle>&&);
enum InvalidationMode {
LayoutAndBoundariesInvalidation,
BoundariesInvalidation,
RepaintInvalidation,
ParentOnlyInvalidation
};
// Used from the invalidateClient/invalidateClients methods from classes, inheriting from us.
virtual bool selfNeedsClientInvalidation() const { return everHadLayout() && selfNeedsLayout(); }
void markAllClientsForInvalidation(InvalidationMode);
void markAllClientLayersForInvalidation();
void markClientForInvalidation(RenderObject&, InvalidationMode);
private:
friend class SVGResourcesCache;
void addClient(RenderElement&);
void removeClient(RenderElement&);
virtual void willBeDestroyed() override final;
void registerResource();
AtomicString m_id;
bool m_registered : 1;
bool m_isInvalidating : 1;
HashSet<RenderElement*> m_clients;
HashSet<RenderLayer*> m_clientLayers;
};
inline RenderSVGResourceContainer* getRenderSVGResourceContainerById(Document& document, const AtomicString& id)
{
if (id.isEmpty())
return nullptr;
if (RenderSVGResourceContainer* renderResource = document.accessSVGExtensions().resourceById(id))
return renderResource;
return nullptr;
}
template<typename Renderer>
Renderer* getRenderSVGResourceById(Document& document, const AtomicString& id)
{
// Using the RenderSVGResource type here avoids ambiguous casts for types that
// descend from both RenderObject and RenderSVGResourceContainer.
RenderSVGResource* container = getRenderSVGResourceContainerById(document, id);
if (is<Renderer>(container))
return downcast<Renderer>(container);
return nullptr;
}
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderSVGResourceContainer, isSVGResourceContainer())
#endif // RenderSVGResourceContainer_h
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