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/*
* Copyright (C) 2007 Apple Inc. All rights reserved.
* Copyright (C) 2012 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef DOMSelection_h
#define DOMSelection_h
#include "bindings/v8/ScriptWrappable.h"
#include "core/frame/DOMWindowProperty.h"
#include "wtf/Forward.h"
#include "wtf/PassRefPtr.h"
#include "wtf/RefCounted.h"
namespace WebCore {
class ExceptionState;
class Frame;
class Node;
class Position;
class Range;
class TreeScope;
class VisibleSelection;
class DOMSelection : public RefCounted<DOMSelection>, public ScriptWrappable, public DOMWindowProperty {
public:
static PassRefPtr<DOMSelection> create(const TreeScope* treeScope) { return adoptRef(new DOMSelection(treeScope)); }
void clearTreeScope();
// Safari Selection Object API
// These methods return the valid equivalents of internal editing positions.
Node* baseNode() const;
Node* extentNode() const;
int baseOffset() const;
int extentOffset() const;
String type() const;
void setBaseAndExtent(Node* baseNode, int baseOffset, Node* extentNode, int extentOffset, ExceptionState&);
void setPosition(Node*, int offset, ExceptionState&);
void modify(const String& alter, const String& direction, const String& granularity);
// Mozilla Selection Object API
// In Firefox, anchor/focus are the equal to the start/end of the selection,
// but reflect the direction in which the selection was made by the user. That does
// not mean that they are base/extent, since the base/extent don't reflect
// expansion.
// These methods return the valid equivalents of internal editing positions.
Node* anchorNode() const;
int anchorOffset() const;
Node* focusNode() const;
int focusOffset() const;
bool isCollapsed() const;
int rangeCount() const;
void collapse(Node*, int offset, ExceptionState&);
void collapseToEnd(ExceptionState&);
void collapseToStart(ExceptionState&);
void extend(Node*, int offset, ExceptionState&);
PassRefPtr<Range> getRangeAt(int, ExceptionState&);
void removeAllRanges();
void addRange(Range*);
void deleteFromDocument();
bool containsNode(const Node*, bool partlyContained) const;
void selectAllChildren(Node*, ExceptionState&);
String toString();
// Microsoft Selection Object API
void empty();
private:
const TreeScope* m_treeScope;
explicit DOMSelection(const TreeScope*);
// Convenience method for accessors, does not check m_frame present.
const VisibleSelection& visibleSelection() const;
Node* shadowAdjustedNode(const Position&) const;
int shadowAdjustedOffset(const Position&) const;
bool isValidForPosition(Node*) const;
};
} // namespace WebCore
#endif // DOMSelection_h
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