| /******************************************************************************* |
| * Copyright (c) 1998, 2008 IBM Corporation 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: |
| * Goh KONDOH - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.actf.model.dom.html.util; |
| |
| import org.eclipse.actf.model.dom.sgml.util.SgmlUtil; |
| import org.w3c.dom.Node; |
| import org.w3c.dom.html.HTMLCollection; |
| |
| |
| public class HtmlUtil { |
| public static Node commonAncester(HTMLCollection ancesters) { |
| switch (ancesters.getLength()) { |
| case 0: |
| return null; |
| case 1: |
| return ancesters.item(0).getParentNode(); |
| default: |
| Node ret = SgmlUtil |
| .commonAncester(ancesters.item(0), ancesters.item(1)); |
| for (int i = 2; i < ancesters.getLength(); i++) { |
| Node tmp = SgmlUtil.commonAncester(ancesters.item(i - 1), ancesters |
| .item(i)); |
| if (ret != tmp) { |
| ret = SgmlUtil.commonAncester(ret, tmp); |
| } |
| } |
| return ret; |
| } |
| } |
| } |
