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/*
* Copyright (C) 2005, 2006 Apple Computer, 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.
*/
#include "config.h"
#include "MoveSelectionCommand.h"
#include "DocumentFragment.h"
#include "ReplaceSelectionCommand.h"
namespace WebCore {
MoveSelectionCommand::MoveSelectionCommand(PassRefPtr<DocumentFragment> fragment, const Position& position, bool smartInsert, bool smartDelete)
: CompositeEditCommand(position.node()->document()), m_fragment(fragment), m_position(position), m_smartInsert(smartInsert), m_smartDelete(smartDelete)
{
ASSERT(m_fragment);
}
void MoveSelectionCommand::doApply()
{
VisibleSelection selection = endingSelection();
ASSERT(selection.isRange());
Position pos = m_position;
if (pos.isNull())
return;
// Update the position otherwise it may become invalid after the selection is deleted.
Node *positionNode = m_position.node();
int positionOffset = m_position.deprecatedEditingOffset();
Position selectionEnd = selection.end();
int selectionEndOffset = selectionEnd.deprecatedEditingOffset();
if (selectionEnd.node() == positionNode && selectionEndOffset < positionOffset) {
positionOffset -= selectionEndOffset;
Position selectionStart = selection.start();
if (selectionStart.node() == positionNode) {
positionOffset += selectionStart.deprecatedEditingOffset();
}
pos = Position(positionNode, positionOffset);
}
deleteSelection(m_smartDelete);
// If the node for the destination has been removed as a result of the deletion,
// set the destination to the ending point after the deletion.
// Fixes: <rdar://problem/3910425> REGRESSION (Mail): Crash in ReplaceSelectionCommand;
// selection is empty, leading to null deref
if (!pos.node()->inDocument())
pos = endingSelection().start();
setEndingSelection(VisibleSelection(pos, endingSelection().affinity()));
if (!positionNode->inDocument()) {
// Document was modified out from under us.
return;
}
applyCommandToComposite(ReplaceSelectionCommand::create(positionNode->document(), m_fragment, true, m_smartInsert));
}
EditAction MoveSelectionCommand::editingAction() const
{
return EditActionDrag;
}
} // namespace WebCore
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