sippeangelo
79 lines
2.5 KiB
C++
79 lines
2.5 KiB
C++
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* $Id: DOMChildNode.cpp 471747 2006-11-06 14:31:56Z amassari $
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*/
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// This class only adds the ability to have siblings
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#include <xercesc/util/XercesDefs.hpp>
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#include "DOMNodeImpl.hpp"
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#include "DOMChildNode.hpp"
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#include "DOMCasts.hpp"
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XERCES_CPP_NAMESPACE_BEGIN
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DOMChildNode::DOMChildNode()
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{
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this->previousSibling = 0;
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this->nextSibling = 0;
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}
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// This only makes a shallow copy, cloneChildren must also be called for a
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// deep clone
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DOMChildNode::DOMChildNode(const DOMChildNode &)
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{
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// Need to break the association w/ original siblings and parent
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this->previousSibling = 0;
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this->nextSibling = 0;
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}
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DOMChildNode::~DOMChildNode() {
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}
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DOMNode * DOMChildNode::getNextSibling() const {
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return nextSibling;
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}
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//
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// Note: for getParentNode and getPreviousSibling(), below, an
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// extra paramter "thisNode" is required. This is because there
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// is no way to cast from a DOMChildNode pointer back to the
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// DOMNodeImpl that it is part of. Our "this" may or may not
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// be preceded by a fParent in the object layout, and there's no
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// practical way to tell, so we just take an extra parameter instead.
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DOMNode * DOMChildNode::getParentNode(const DOMNode *thisNode) const
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{
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// if we have an owner, ownerNode is our parent, otherwise it's
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// our ownerDocument and we don't have a parent
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DOMNodeImpl *thisNodeImpl = castToNodeImpl(thisNode);
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return thisNodeImpl->isOwned() ? thisNodeImpl->fOwnerNode : 0;
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}
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DOMNode * DOMChildNode::getPreviousSibling(const DOMNode *thisNode) const {
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// if we are the firstChild, previousSibling actually refers to our
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// parent's lastChild, but we hide that
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return castToNodeImpl(thisNode)->isFirstChild() ? 0 : previousSibling;
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}
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XERCES_CPP_NAMESPACE_END
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