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/*
* Copyright (C) 2005, 2006 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 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 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 "DeleteSelectionCommand.h"
#include "DocumentFragment.h"
#include "ReplaceSelectionCommand.h"
namespace WebCore {
MoveSelectionCommand::MoveSelectionCommand(Ref<DocumentFragment>&& fragment, const Position& position, bool smartInsert, bool smartDelete)
: CompositeEditCommand(position.anchorNode()->document())
, m_fragment(WTFMove(fragment))
, m_position(position)
, m_smartInsert(smartInsert)
, m_smartDelete(smartDelete)
{
}
void MoveSelectionCommand::doApply()
{
ASSERT(endingSelection().isNonOrphanedRange());
Position pos = m_position;
if (pos.isNull())
return;
// Update the position otherwise it may become invalid after the selection is deleted.
Position selectionEnd = endingSelection().end();
if (pos.anchorType() == Position::PositionIsOffsetInAnchor && selectionEnd.anchorType() == Position::PositionIsOffsetInAnchor
&& selectionEnd.containerNode() == pos.containerNode() && selectionEnd.offsetInContainerNode() < pos.offsetInContainerNode()) {
pos.moveToOffset(pos.offsetInContainerNode() - selectionEnd.offsetInContainerNode());
Position selectionStart = endingSelection().start();
if (selectionStart.anchorType() == Position::PositionIsOffsetInAnchor && selectionStart.containerNode() == pos.containerNode())
pos.moveToOffset(pos.offsetInContainerNode() + selectionStart.offsetInContainerNode());
}
{
auto deleteSelection = DeleteSelectionCommand::create(document(), m_smartDelete, true, false, true, true, EditActionDeleteByDrag);
deleteSelection->setParent(this);
deleteSelection->apply();
m_commands.append(WTFMove(deleteSelection));
}
// 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.anchorNode()->isConnected())
pos = endingSelection().start();
cleanupAfterDeletion(pos);
setEndingSelection(VisibleSelection(pos, endingSelection().affinity(), endingSelection().isDirectional()));
setStartingSelection(endingSelection());
if (!pos.anchorNode()->isConnected()) {
// Document was modified out from under us.
return;
}
ReplaceSelectionCommand::CommandOptions options = ReplaceSelectionCommand::SelectReplacement | ReplaceSelectionCommand::PreventNesting;
if (m_smartInsert)
options |= ReplaceSelectionCommand::SmartReplace;
{
auto replaceSelection = ReplaceSelectionCommand::create(document(), WTFMove(m_fragment), options, EditActionInsertFromDrop);
replaceSelection->setParent(this);
replaceSelection->apply();
m_commands.append(WTFMove(replaceSelection));
}
}
EditAction MoveSelectionCommand::editingAction() const
{
return EditActionDeleteByDrag;
}
} // namespace WebCore