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/*
* Copyright (C) 2004, 2005, 2006, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
*
* 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 SVGUseElement_h
#define SVGUseElement_h
#if ENABLE(SVG)
#include "SVGAnimatedBoolean.h"
#include "SVGAnimatedLength.h"
#include "SVGExternalResourcesRequired.h"
#include "SVGLangSpace.h"
#include "SVGStyledTransformableElement.h"
#include "SVGTests.h"
#include "SVGURIReference.h"
namespace WebCore {
class SVGElementInstance;
class SVGShadowTreeRootElement;
class SVGUseElement : public SVGStyledTransformableElement,
public SVGTests,
public SVGLangSpace,
public SVGExternalResourcesRequired,
public SVGURIReference {
public:
static PassRefPtr<SVGUseElement> create(const QualifiedName&, Document*);
SVGElementInstance* instanceRoot();
SVGElementInstance* animatedInstanceRoot() const;
SVGElementInstance* instanceForShadowTreeElement(Node*) const;
void invalidateShadowTree();
RenderObject* rendererClipChild() const;
private:
SVGUseElement(const QualifiedName&, Document*);
virtual bool isValid() const { return SVGTests::isValid(); }
virtual bool supportsFocus() const { return true; }
virtual void insertedIntoDocument();
virtual void removedFromDocument();
virtual void buildPendingResource();
bool isSupportedAttribute(const QualifiedName&);
virtual void parseAttribute(Attribute*) OVERRIDE;
virtual void svgAttributeChanged(const QualifiedName&);
virtual bool willRecalcStyle(StyleChange);
virtual void didRecalcStyle(StyleChange);
virtual RenderObject* createRenderer(RenderArena*, RenderStyle*);
virtual void attach();
virtual void detach();
virtual void toClipPath(Path&);
static void removeDisallowedElementsFromSubtree(Node* element);
void setUpdatesBlocked(bool blocked) { m_updatesBlocked = blocked; }
friend class RenderSVGShadowTreeRootContainer;
friend class SVGElement;
void buildShadowAndInstanceTree(SVGShadowTreeRootElement*);
void detachInstance();
virtual bool selfHasRelativeLengths() const;
// Instance tree handling
void buildInstanceTree(SVGElement* target, SVGElementInstance* targetInstance, bool& foundCycle);
bool hasCycleUseReferencing(SVGUseElement*, SVGElementInstance* targetInstance, SVGElement*& newTarget);
// Shadow tree handling
void buildShadowTree(SVGShadowTreeRootElement*, SVGElement* target, SVGElementInstance* targetInstance);
void expandUseElementsInShadowTree(Node* element);
void expandSymbolElementsInShadowTree(Node* element);
// "Tree connector"
void associateInstancesWithShadowTreeElements(Node* target, SVGElementInstance* targetInstance);
SVGElementInstance* instanceForShadowTreeElement(Node* element, SVGElementInstance* instance) const;
void transferUseAttributesToReplacedElement(SVGElement* from, SVGElement* to) const;
void transferEventListenersToShadowTree(SVGElementInstance* target);
void updateContainerOffsets();
void updateContainerSizes();
BEGIN_DECLARE_ANIMATED_PROPERTIES(SVGUseElement)
DECLARE_ANIMATED_LENGTH(X, x)
DECLARE_ANIMATED_LENGTH(Y, y)
DECLARE_ANIMATED_LENGTH(Width, width)
DECLARE_ANIMATED_LENGTH(Height, height)
DECLARE_ANIMATED_STRING(Href, href)
DECLARE_ANIMATED_BOOLEAN(ExternalResourcesRequired, externalResourcesRequired)
END_DECLARE_ANIMATED_PROPERTIES
// SVGTests
virtual void synchronizeRequiredFeatures() { SVGTests::synchronizeRequiredFeatures(this); }
virtual void synchronizeRequiredExtensions() { SVGTests::synchronizeRequiredExtensions(this); }
virtual void synchronizeSystemLanguage() { SVGTests::synchronizeSystemLanguage(this); }
bool m_updatesBlocked;
bool m_needsShadowTreeRecreation;
String m_resourceId;
RefPtr<SVGElementInstance> m_targetElementInstance;
};
}
#endif
#endif
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