/*
    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: lobochief@users.sourceforge.net
 */
/*
 * Created on Dec 3, 2005
 */
package org.lobobrowser.html.domimpl;

import org.lobobrowser.js.AbstractScriptableDelegate;
import org.w3c.dom.Node;
import org.w3c.dom.html.HTMLCollection;

public class ChildHTMLCollection extends AbstractScriptableDelegate implements HTMLCollection {
  private final NodeImpl rootNode;

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

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

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

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

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