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/*
* Copyright (C) 2005, 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.
*/
#include "core/editing/commands/RemoveNodeCommand.h"
#include "bindings/core/v8/ExceptionState.h"
#include "core/dom/Node.h"
#include "core/editing/EditingUtilities.h"
#include "core/editing/commands/EditingState.h"
#include "wtf/Assertions.h"
namespace blink {
RemoveNodeCommand::RemoveNodeCommand(
Node* node,
ShouldAssumeContentIsAlwaysEditable shouldAssumeContentIsAlwaysEditable)
: SimpleEditCommand(node->document()),
m_node(node),
m_shouldAssumeContentIsAlwaysEditable(
shouldAssumeContentIsAlwaysEditable) {
DCHECK(m_node);
DCHECK(m_node->parentNode());
}
void RemoveNodeCommand::doApply(EditingState* editingState) {
ContainerNode* parent = m_node->parentNode();
document().updateStyleAndLayoutTree();
if (!parent || (m_shouldAssumeContentIsAlwaysEditable ==
DoNotAssumeContentIsAlwaysEditable &&
!hasEditableStyle(*parent) && parent->inActiveDocument()))
return;
DCHECK(hasEditableStyle(*parent) || !parent->inActiveDocument()) << parent;
m_parent = parent;
m_refChild = m_node->nextSibling();
m_node->remove(IGNORE_EXCEPTION_FOR_TESTING);
// Node::remove dispatch synchronous events such as IFRAME unload events,
// and event handlers may break the document. We check the document state
// here in order to prevent further processing in bad situation.
ABORT_EDITING_COMMAND_IF(!m_node->document().frame());
ABORT_EDITING_COMMAND_IF(!m_node->document().documentElement());
}
void RemoveNodeCommand::doUnapply() {
ContainerNode* parent = m_parent.release();
Node* refChild = m_refChild.release();
if (!parent || !hasEditableStyle(*parent))
return;
parent->insertBefore(m_node.get(), refChild, IGNORE_EXCEPTION_FOR_TESTING);
}
DEFINE_TRACE(RemoveNodeCommand) {
visitor->trace(m_node);
visitor->trace(m_parent);
visitor->trace(m_refChild);
SimpleEditCommand::trace(visitor);
}
} // namespace blink
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