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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 "third_party/blink/renderer/core/editing/commands/remove_node_command.h"
#include "third_party/blink/renderer/core/dom/node.h"
#include "third_party/blink/renderer/core/editing/commands/editing_state.h"
#include "third_party/blink/renderer/core/editing/editing_utilities.h"
#include "third_party/blink/renderer/platform/bindings/exception_state.h"
#include "third_party/blink/renderer/platform/wtf/assertions.h"
namespace blink {
RemoveNodeCommand::RemoveNodeCommand(
Node* node,
ShouldAssumeContentIsAlwaysEditable
should_assume_content_is_always_editable)
: SimpleEditCommand(node->GetDocument()),
node_(node),
should_assume_content_is_always_editable_(
should_assume_content_is_always_editable) {
DCHECK(node_);
DCHECK(node_->parentNode());
}
void RemoveNodeCommand::DoApply(EditingState* editing_state) {
ContainerNode* parent = node_->parentNode();
GetDocument().UpdateStyleAndLayoutTree();
if (!parent || (should_assume_content_is_always_editable_ ==
kDoNotAssumeContentIsAlwaysEditable &&
!HasEditableStyle(*parent) && parent->InActiveDocument()))
return;
DCHECK(HasEditableStyle(*parent) || !parent->InActiveDocument()) << parent;
parent_ = parent;
ref_child_ = node_->nextSibling();
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(!node_->GetDocument().GetFrame());
ABORT_EDITING_COMMAND_IF(!node_->GetDocument().documentElement());
}
void RemoveNodeCommand::DoUnapply() {
ContainerNode* parent = parent_.Release();
Node* ref_child = ref_child_.Release();
if (!parent || !HasEditableStyle(*parent))
return;
parent->InsertBefore(node_.Get(), ref_child, IGNORE_EXCEPTION_FOR_TESTING);
}
void RemoveNodeCommand::Trace(blink::Visitor* visitor) {
visitor->Trace(node_);
visitor->Trace(parent_);
visitor->Trace(ref_child_);
SimpleEditCommand::Trace(visitor);
}
} // namespace blink
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