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/*
* Copyright (C) 2006 Apple Computer, Inc.
*
* 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 FrameTree_h
#define FrameTree_h
#include "AtomicString.h"
namespace WebCore {
class Frame;
class FrameTree : public Noncopyable {
public:
FrameTree(Frame* thisFrame, Frame* parentFrame)
: m_thisFrame(thisFrame)
, m_parent(parentFrame)
, m_previousSibling(0)
, m_lastChild(0)
, m_childCount(0)
{
}
~FrameTree();
const AtomicString& name() const { return m_name; }
void setName(const AtomicString&);
void clearName();
Frame* parent(bool checkForDisconnectedFrame = false) const;
void setParent(Frame* parent) { m_parent = parent; }
Frame* nextSibling() const { return m_nextSibling.get(); }
Frame* previousSibling() const { return m_previousSibling; }
Frame* firstChild() const { return m_firstChild.get(); }
Frame* lastChild() const { return m_lastChild; }
unsigned childCount() const { return m_childCount; }
bool isDescendantOf(const Frame* ancestor) const;
Frame* traverseNext(const Frame* stayWithin = 0) const;
Frame* traverseNextWithWrap(bool) const;
Frame* traversePreviousWithWrap(bool) const;
void appendChild(PassRefPtr<Frame>);
void detachFromParent() { m_parent = 0; }
void removeChild(Frame*);
Frame* child(unsigned index) const;
Frame* child(const AtomicString& name) const;
Frame* find(const AtomicString& name) const;
AtomicString uniqueChildName(const AtomicString& requestedName) const;
Frame* top(bool checkForDisconnectedFrame = false) const;
private:
Frame* deepLastChild() const;
Frame* m_thisFrame;
Frame* m_parent;
AtomicString m_name;
// FIXME: use ListRefPtr?
RefPtr<Frame> m_nextSibling;
Frame* m_previousSibling;
RefPtr<Frame> m_firstChild;
Frame* m_lastChild;
unsigned m_childCount;
};
} // namespace WebCore
#endif // FrameTree_h
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