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/*
* Copyright (C) 2005, 2006, 2008 Apple 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 COMPUTER, INC. OR
* 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 DeleteSelectionCommand_h
#define DeleteSelectionCommand_h
#include "CompositeEditCommand.h"
namespace WebCore {
class EditingStyle;
class DeleteSelectionCommand : public CompositeEditCommand {
public:
static PassRefPtr<DeleteSelectionCommand> create(Document* document, bool smartDelete = false, bool mergeBlocksAfterDelete = true, bool replace = false, bool expandForSpecialElements = false)
{
return adoptRef(new DeleteSelectionCommand(document, smartDelete, mergeBlocksAfterDelete, replace, expandForSpecialElements));
}
static PassRefPtr<DeleteSelectionCommand> create(const VisibleSelection& selection, bool smartDelete = false, bool mergeBlocksAfterDelete = true, bool replace = false, bool expandForSpecialElements = false)
{
return adoptRef(new DeleteSelectionCommand(selection, smartDelete, mergeBlocksAfterDelete, replace, expandForSpecialElements));
}
private:
DeleteSelectionCommand(Document*, bool smartDelete, bool mergeBlocksAfterDelete, bool replace, bool expandForSpecialElements);
DeleteSelectionCommand(const VisibleSelection&, bool smartDelete, bool mergeBlocksAfterDelete, bool replace, bool expandForSpecialElements);
virtual void doApply();
virtual EditAction editingAction() const;
virtual bool preservesTypingStyle() const;
void initializeStartEnd(Position&, Position&);
void setStartingSelectionOnSmartDelete(const Position&, const Position&);
void initializePositionData();
void saveTypingStyleState();
void insertPlaceholderForAncestorBlockContent();
bool handleSpecialCaseBRDelete();
void handleGeneralDelete();
void fixupWhitespace();
void mergeParagraphs();
void removePreviouslySelectedEmptyTableRows();
void calculateEndingPosition();
void calculateTypingStyleAfterDelete();
void clearTransientState();
virtual void removeNode(PassRefPtr<Node>);
virtual void deleteTextFromNode(PassRefPtr<Text>, unsigned, unsigned);
bool m_hasSelectionToDelete;
bool m_smartDelete;
bool m_mergeBlocksAfterDelete;
bool m_needPlaceholder;
bool m_replace;
bool m_expandForSpecialElements;
bool m_pruneStartBlockIfNecessary;
bool m_startsAtEmptyLine;
// This data is transient and should be cleared at the end of the doApply function.
VisibleSelection m_selectionToDelete;
Position m_upstreamStart;
Position m_downstreamStart;
Position m_upstreamEnd;
Position m_downstreamEnd;
Position m_endingPosition;
Position m_leadingWhitespace;
Position m_trailingWhitespace;
RefPtr<Node> m_startBlock;
RefPtr<Node> m_endBlock;
RefPtr<EditingStyle> m_typingStyle;
RefPtr<EditingStyle> m_deleteIntoBlockquoteStyle;
RefPtr<Node> m_startRoot;
RefPtr<Node> m_endRoot;
RefPtr<Node> m_startTableRow;
RefPtr<Node> m_endTableRow;
RefPtr<Node> m_temporaryPlaceholder;
};
} // namespace WebCore
#endif // DeleteSelectionCommand_h
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