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/*******************************************************************************
* Copyright (c) 2006 Sybase, Inc. and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Sybase, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.pagedesigner.dom;
import org.w3c.dom.Node;
/**
* This ref position use a parent node as reference. And provide whether this
* location is at the beginning of its parent or last of its parent.
*
* @author mengbo
* @version 1.5
*/
public class DOMRefPosition2 implements IDOMRefPosition {
Node _parentNode;
boolean _last;
/**
* @param replacement
* @param _last2
*/
public DOMRefPosition2(Node parent, boolean last) {
_parentNode = parent;
_last = last;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jst.pagedesigner.dom.IDOMRefPosition#getReferenceNode()
*/
public Node getReferenceNode() {
return _parentNode;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jst.pagedesigner.dom.IDOMPosition#getSibling(boolean)
*/
public Node getSibling(boolean forward) {
if (forward) {
if (_last) {
return null;
}
return _parentNode.getFirstChild();
} else if (_last) {
return _parentNode.getLastChild();
} else {
return null;
}
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jst.pagedesigner.dom.IDOMPosition#getNextSiblingNode()
*/
public Node getNextSiblingNode() {
return getSibling(true);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jst.pagedesigner.dom.IDOMPosition#getPreviousSiblingNode()
*/
public Node getPreviousSiblingNode() {
return getSibling(false);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jst.pagedesigner.dom.IDOMPosition#getContainerNode()
*/
public Node getContainerNode() {
return _parentNode;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jst.pagedesigner.dom.IDOMPosition#getOffset()
*/
public int getOffset() {
if (!_last) {
return 0;
}
return _parentNode.getChildNodes().getLength();
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jst.pagedesigner.dom.IDOMPosition#isText()
*/
public boolean isText() {
return false;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jst.pagedesigner.dom.IDOMPosition#handleReplacement(org.w3c.dom.Node,
* org.w3c.dom.Node)
*/
public IDOMPosition handleReplacement(Node original, Node replacement) {
if (original == _parentNode) {
return new DOMRefPosition2(replacement, _last);
}
return this;
}
}
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