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112 lines
3.8 KiB
C++
112 lines
3.8 KiB
C++
/*
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Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
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This file is part of the KDE project
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#ifndef SVGElementInstance_h
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#define SVGElementInstance_h
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#if ENABLE(SVG)
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/*#include "EventTarget.h"*/
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#include "Document.h" //khtml
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#include <wtf/RefPtr.h>
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#include <wtf/PassRefPtr.h>
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namespace WebCore {
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class SVGElement;
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class SVGUseElement;
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class SVGElementInstanceList;
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class SVGElementInstance /*: public EventTarget*/ {
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public:
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SVGElementInstance(SVGUseElement*, PassRefPtr<SVGElement> originalElement);
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virtual ~SVGElementInstance();
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// 'SVGElementInstance' functions
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SVGElement* correspondingElement() const;
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SVGUseElement* correspondingUseElement() const;
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SVGElementInstance* parentNode() const;
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PassRefPtr<SVGElementInstanceList> childNodes();
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SVGElementInstance* previousSibling() const;
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SVGElementInstance* nextSibling() const;
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SVGElementInstance* firstChild() const;
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SVGElementInstance* lastChild() const;
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// Internal usage only!
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SVGElement* shadowTreeElement() const;
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void setShadowTreeElement(SVGElement*);
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// Model the TreeShared concept, integrated within EventTarget inheritance.
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virtual void refEventTarget() { ++m_refCount; }
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virtual void derefEventTarget() { if (--m_refCount <= 0 && !m_parent) delete this; }
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// khtml compat
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virtual void ref() { refEventTarget(); }
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virtual void deref() { derefEventTarget(); }
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bool hasOneRef() { return m_refCount == 1; }
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int refCount() const { return m_refCount; }
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void setParent(SVGElementInstance* parent) { m_parent = parent; }
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SVGElementInstance* parent() const { return m_parent; }
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// SVGElementInstance supports both toSVGElementInstance and toNode since so much mouse handling code depends on toNode returning a valid node.
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virtual EventTargetNode* toNode();
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virtual SVGElementInstance* toSVGElementInstance();
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virtual void addEventListener(const AtomicString& eventType, PassRefPtr<EventListener>, bool useCapture);
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virtual void removeEventListener(const AtomicString& eventType, EventListener*, bool useCapture);
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virtual bool dispatchEvent(PassRefPtr<Event>, ExceptionCode&, bool tempEvent = false);
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private:
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SVGElementInstance(const SVGElementInstance&);
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SVGElementInstance& operator=(const SVGElementInstance&);
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private: // Helper methods
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friend class SVGUseElement;
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void appendChild(PassRefPtr<SVGElementInstance> child);
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friend class SVGStyledElement;
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void updateInstance(SVGElement*);
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private:
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int m_refCount;
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SVGElementInstance* m_parent;
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SVGUseElement* m_useElement;
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RefPtr<SVGElement> m_element;
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SVGElement* m_shadowTreeElement;
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SVGElementInstance* m_previousSibling;
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SVGElementInstance* m_nextSibling;
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SVGElementInstance* m_firstChild;
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SVGElementInstance* m_lastChild;
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};
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} // namespace WebCore
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#endif // ENABLE(SVG)
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#endif
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// vim:ts=4:noet
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