/*
 * GNU LESSER GENERAL PUBLIC LICENSE Copyright (C) 2006 The Lobo Project
 * 
 * This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 * 
 * Contact info: xamjadmin@users.sourceforge.net
 */
/*
 * Created on Dec 3, 2005
 */
package org.cobra_grendel.html.domimpl;

import org.cobra_grendel.js.AbstractScriptableDelegate;
import org.w3c.dom.Node;
import org.w3c.dom.html2.HTMLCollection;

public class ChildHTMLCollection extends AbstractScriptableDelegate implements HTMLCollection
{
    /**
	 * 
	 */
    private static final long serialVersionUID = 1L;
    private final NodeImpl rootNode;

    /**
     * @param node
     */
    public ChildHTMLCollection(final NodeImpl node, final int transactionId)
    {
        super(transactionId);
        rootNode = node;
    }

    @Override
    public int getLength()
    {
        return rootNode.getChildCount();
    }

    public int indexOf(final Node node)
    {
        return rootNode.getChildIndex(node);
    }

    @Override
    public Node item(final int index)
    {
        return rootNode.getChildAtIndex(index);
    }

    @Override
    public Node namedItem(final String name)
    {
        org.w3c.dom.Document doc = rootNode.getOwnerDocument();
        if (doc == null)
        {
            return null;
        }
        // TODO: This might get elements that are not descendents.
        Node node = doc.getElementById(name);
        if (node != null && node.getParentNode() == rootNode)
        {
            return node;
        }
        return null;
    }
}