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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.
*/
#pragma once
#include "LegacyRenderSVGHiddenContainer.h"
#include "LegacyRenderSVGResource.h"
#include "SVGDocumentExtensions.h"
#include <wtf/WeakHashSet.h>
namespace WebCore {
class RenderLayer;
class LegacyRenderSVGResourceContainer : public LegacyRenderSVGHiddenContainer, public LegacyRenderSVGResource {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED(LegacyRenderSVGResourceContainer);
WTF_OVERRIDE_DELETE_FOR_CHECKED_PTR(LegacyRenderSVGResourceContainer);
public:
virtual ~LegacyRenderSVGResourceContainer();
void layout() override;
void styleDidChange(StyleDifference, const RenderStyle* oldStyle) final;
static float computeTextPaintingScale(const RenderElement&);
static AffineTransform transformOnNonScalingStroke(RenderObject*, const AffineTransform& resourceTransform);
void idChanged();
void markAllClientsForRepaint();
void addClientRenderLayer(RenderLayer&);
void removeClientRenderLayer(RenderLayer&);
void markAllClientLayersForInvalidation();
protected:
LegacyRenderSVGResourceContainer(Type, SVGElement&, 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 markAllClientsForInvalidationIfNeeded(InvalidationMode, SingleThreadWeakHashSet<RenderObject>* visitedRenderers);
void markClientForInvalidation(RenderObject&, InvalidationMode);
private:
friend class SVGResourcesCache;
void addClient(RenderElement&);
void removeClient(RenderElement&);
void willBeDestroyed() final;
void registerResource();
AtomString m_id;
SingleThreadWeakHashSet<RenderElement> m_clients;
SingleThreadWeakHashSet<RenderLayer> m_clientLayers;
bool m_registered { false };
bool m_isInvalidating { false };
};
inline LegacyRenderSVGResourceContainer* getRenderSVGResourceContainerById(TreeScope& treeScope, const AtomString& id)
{
if (id.isEmpty())
return nullptr;
if (LegacyRenderSVGResourceContainer* renderResource = treeScope.lookupLegacySVGResoureById(id))
return renderResource;
return nullptr;
}
template<typename Renderer>
Renderer* getRenderSVGResourceById(TreeScope& treeScope, const AtomString& id)
{
// Using the LegacyRenderSVGResource type here avoids ambiguous casts for types that
// descend from both RenderObject and LegacyRenderSVGResourceContainer.
LegacyRenderSVGResource* container = getRenderSVGResourceContainerById(treeScope, id);
return dynamicDowncast<Renderer>(container);
}
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(LegacyRenderSVGResourceContainer, isLegacyRenderSVGResourceContainer())
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