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author | Upstream <upstream-import@none> | 1970-01-12 13:46:40 +0000 |
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committer | Upstream <upstream-import@none> | 1970-01-12 13:46:40 +0000 |
commit | d8543bb6618c17b12da906afa77d216f58cf4058 (patch) | |
tree | c58dc05ed86825bd0ef8d305d58c8205106b540f /WebCore/editing/MoveSelectionCommand.cpp | |
download | external_webkit-d8543bb6618c17b12da906afa77d216f58cf4058.zip external_webkit-d8543bb6618c17b12da906afa77d216f58cf4058.tar.gz external_webkit-d8543bb6618c17b12da906afa77d216f58cf4058.tar.bz2 |
external/webkit r30707
Diffstat (limited to 'WebCore/editing/MoveSelectionCommand.cpp')
-rw-r--r-- | WebCore/editing/MoveSelectionCommand.cpp | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/WebCore/editing/MoveSelectionCommand.cpp b/WebCore/editing/MoveSelectionCommand.cpp new file mode 100644 index 0000000..b2637a7 --- /dev/null +++ b/WebCore/editing/MoveSelectionCommand.cpp @@ -0,0 +1,85 @@ +/* + * 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 smartMove) + : CompositeEditCommand(position.node()->document()), m_fragment(fragment), m_position(position), m_smartMove(smartMove) +{ + ASSERT(m_fragment); +} + +MoveSelectionCommand::~MoveSelectionCommand() +{ +} + +void MoveSelectionCommand::doApply() +{ + Selection 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.offset(); + Position selectionEnd = selection.end(); + int selectionEndOffset = selectionEnd.offset(); + if (selectionEnd.node() == positionNode && selectionEndOffset < positionOffset) { + positionOffset -= selectionEndOffset; + Position selectionStart = selection.start(); + if (selectionStart.node() == positionNode) { + positionOffset += selectionStart.offset(); + } + pos = Position(positionNode, positionOffset); + } + + deleteSelection(m_smartMove); + + // 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(Selection(pos, endingSelection().affinity())); + applyCommandToComposite(new ReplaceSelectionCommand(positionNode->document(), m_fragment.get(), true, m_smartMove)); +} + +EditAction MoveSelectionCommand::editingAction() const +{ + return EditActionDrag; +} + +} // namespace WebCore |