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/*
* (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, 2007, 2008, 2009 Apple Inc. 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.
*
*/
#ifndef Range_h
#define Range_h
#include "FloatQuad.h"
#include "RangeBoundaryPoint.h"
#include <wtf/Forward.h>
#include <wtf/RefCounted.h>
#include <wtf/Vector.h>
namespace WebCore {
class ClientRect;
class ClientRectList;
class DocumentFragment;
class NodeWithIndex;
class Text;
class Range : public RefCounted<Range> {
public:
static PassRefPtr<Range> create(PassRefPtr<Document>);
static PassRefPtr<Range> create(PassRefPtr<Document>, PassRefPtr<Node> startContainer, int startOffset, PassRefPtr<Node> endContainer, int endOffset);
static PassRefPtr<Range> create(PassRefPtr<Document>, const Position&, const Position&);
~Range();
Document* ownerDocument() const { return m_ownerDocument.get(); }
Node* startContainer() const { return m_start.container(); }
int startOffset() const { return m_start.offset(); }
Node* endContainer() const { return m_end.container(); }
int endOffset() const { return m_end.offset(); }
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(PassRefPtr<Node> container, int offset, ExceptionCode&);
void setEnd(PassRefPtr<Node> container, int offset, ExceptionCode&);
void collapse(bool toStart, ExceptionCode&);
bool isPointInRange(Node* refNode, int offset, ExceptionCode&);
short comparePoint(Node* refNode, int offset, ExceptionCode&) const;
enum CompareResults { NODE_BEFORE, NODE_AFTER, NODE_BEFORE_AND_AFTER, NODE_INSIDE };
CompareResults compareNode(Node* refNode, ExceptionCode&) const;
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, ExceptionCode&);
static short compareBoundaryPoints(const RangeBoundaryPoint& boundaryA, const RangeBoundaryPoint& boundaryB, ExceptionCode&);
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&);
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&);
const Position startPosition() const { return m_start.toPosition(); }
const Position endPosition() const { return m_end.toPosition(); }
Node* firstNode() const;
Node* pastLastNode() const;
Position editingStartPosition() const;
Node* shadowTreeRootNode() const;
IntRect boundingBox();
// Not transform-friendly
void textRects(Vector<IntRect>&, bool useSelectionHeight = false);
// Transform-friendly
void textQuads(Vector<FloatQuad>&, bool useSelectionHeight = false) const;
void getBorderAndTextQuads(Vector<FloatQuad>&) const;
FloatRect boundingRect() const;
void nodeChildrenChanged(ContainerNode*);
void nodeChildrenWillBeRemoved(ContainerNode*);
void nodeWillBeRemoved(Node*);
void textInserted(Node*, unsigned offset, unsigned length);
void textRemoved(Node*, unsigned offset, unsigned length);
void textNodesMerged(NodeWithIndex& oldNode, unsigned offset);
void textNodeSplit(Text* oldNode);
// Expand range to a unit (word or sentence or block or document) boundary.
// Please refer to https://bugs.webkit.org/show_bug.cgi?id=27632 comment #5
// for details.
void expand(const String&, ExceptionCode&);
PassRefPtr<ClientRectList> getClientRects() const;
PassRefPtr<ClientRect> getBoundingClientRect() const;
#ifndef NDEBUG
void formatForDebugger(char* buffer, unsigned length) const;
#endif
private:
Range(PassRefPtr<Document>);
Range(PassRefPtr<Document>, PassRefPtr<Node> startContainer, int startOffset, PassRefPtr<Node> endContainer, int endOffset);
void setDocument(Document*);
Node* checkNodeWOffset(Node*, int offset, ExceptionCode&) const;
void checkNodeBA(Node*, ExceptionCode&) const;
void checkDeleteExtract(ExceptionCode&);
bool containedByReadOnly() const;
int maxStartOffset() const;
int maxEndOffset() const;
enum ActionType { DELETE_CONTENTS, EXTRACT_CONTENTS, CLONE_CONTENTS };
PassRefPtr<DocumentFragment> processContents(ActionType, ExceptionCode&);
static PassRefPtr<Node> processContentsBetweenOffsets(ActionType, PassRefPtr<DocumentFragment>, Node*, unsigned startOffset, unsigned endOffset, ExceptionCode&);
static void processNodes(ActionType, Vector<RefPtr<Node> >&, PassRefPtr<Node> oldContainer, PassRefPtr<Node> newContainer, ExceptionCode&);
enum ContentsProcessDirection { ProcessContentsForward, ProcessContentsBackward };
static PassRefPtr<Node> processAncestorsAndTheirSiblings(ActionType, Node* container, ContentsProcessDirection, PassRefPtr<Node> clonedContainer, Node* commonRoot, ExceptionCode&);
RefPtr<Document> m_ownerDocument;
RangeBoundaryPoint m_start;
RangeBoundaryPoint m_end;
};
PassRefPtr<Range> rangeOfContents(Node*);
bool areRangesEqual(const Range*, const Range*);
} // namespace
#ifndef NDEBUG
// Outside the WebCore namespace for ease of invocation from gdb.
void showTree(const WebCore::Range*);
#endif
#endif
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