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/*
* This file is part of the DOM implementation for KDE.
*
* (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 2000 Gunnstein Lye (gunnstein@netcom.no)
* (C) 2000 Frederik Holljen (frederik.holljen@hig.no)
* (C) 2001 Peter Kelly (pmk@post.com)
* Copyright (C) 2004, 2005, 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 Range_h
#define Range_h
#include <wtf/RefCounted.h>
#include <wtf/Forward.h>
#include <wtf/RefPtr.h>
#include <wtf/Vector.h>
namespace WebCore {
typedef int ExceptionCode;
class DocumentFragment;
class Document;
class IntRect;
class Node;
class Position;
class String;
class Range : public RefCounted<Range>
{
public:
Range(Document*);
Range(Document*, Node* startContainer, int startOffset, Node* endContainer, int endOffset);
Range(Document*, const Position&, const Position&);
~Range();
Document* ownerDocument() const { return m_ownerDocument.get(); }
Node* startContainer(ExceptionCode&) const;
int startOffset(ExceptionCode&) const;
Node* endContainer(ExceptionCode&) const;
int endOffset(ExceptionCode&) const;
bool collapsed(ExceptionCode&) const;
Node* commonAncestorContainer(ExceptionCode&) const;
static Node* commonAncestorContainer(Node* containerA, Node* containerB);
void setStart(Node* container, int offset, ExceptionCode&);
void setEnd(Node* container, int offset, ExceptionCode&);
void collapse(bool toStart, ExceptionCode&);
bool isPointInRange(Node* refNode, int offset, ExceptionCode& ec);
short comparePoint(Node* refNode, int offset, ExceptionCode& ec);
enum CompareResults { NODE_BEFORE, NODE_AFTER, NODE_BEFORE_AND_AFTER, NODE_INSIDE };
CompareResults compareNode(Node* refNode, ExceptionCode&);
enum CompareHow { START_TO_START, START_TO_END, END_TO_END, END_TO_START };
short compareBoundaryPoints(CompareHow, const Range* sourceRange, ExceptionCode&) const;
static short compareBoundaryPoints(Node* containerA, int offsetA, Node* containerB, int offsetB);
static short compareBoundaryPoints(const Position&, const Position&);
bool boundaryPointsValid() const;
bool intersectsNode(Node* refNode, ExceptionCode&);
void deleteContents(ExceptionCode&);
PassRefPtr<DocumentFragment> extractContents(ExceptionCode&);
PassRefPtr<DocumentFragment> cloneContents(ExceptionCode&);
void insertNode(PassRefPtr<Node>, ExceptionCode&);
String toString(ExceptionCode&) const;
String toHTML() const;
String text() const;
PassRefPtr<DocumentFragment> createContextualFragment(const String& html, ExceptionCode&) const;
void detach(ExceptionCode&);
bool isDetached() const;
PassRefPtr<Range> cloneRange(ExceptionCode&) const;
void setStartAfter(Node*, ExceptionCode&);
void setEndBefore(Node*, ExceptionCode&);
void setEndAfter(Node*, ExceptionCode&);
void selectNode(Node*, ExceptionCode&);
void selectNodeContents(Node*, ExceptionCode&);
void surroundContents(PassRefPtr<Node>, ExceptionCode&);
void setStartBefore(Node*, ExceptionCode&);
enum ActionType {
DELETE_CONTENTS,
EXTRACT_CONTENTS,
CLONE_CONTENTS
};
PassRefPtr<DocumentFragment> processContents(ActionType, ExceptionCode&);
Position startPosition() const;
Position endPosition() const;
Node* startNode() const;
Node* pastEndNode() const;
Position editingStartPosition() const;
IntRect boundingBox();
void addLineBoxRects(Vector<IntRect>&, bool useSelectionHeight = false);
#ifndef NDEBUG
void formatForDebugger(char* buffer, unsigned length) const;
#endif
private:
RefPtr<Document> m_ownerDocument;
RefPtr<Node> m_startContainer;
unsigned m_startOffset;
RefPtr<Node> m_endContainer;
unsigned m_endOffset;
bool m_detached;
void checkNodeWOffset(Node*, int offset, ExceptionCode&) const;
void checkNodeBA(Node*, ExceptionCode&) const;
void checkDeleteExtract(ExceptionCode&);
bool containedByReadOnly() const;
unsigned maxStartOffset() const;
unsigned maxEndOffset() const;
};
PassRefPtr<Range> rangeOfContents(Node*);
bool operator==(const Range&, const Range&);
inline bool operator!=(const Range& a, const Range& b) { return !(a == b); }
} // namespace
#endif
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