/*******************************************************************************

  * Copyright (c) 2008 Ketan Padegaonkar 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:

  *     Ketan Padegaonkar - initial API and implementation

  *******************************************************************************/

 package org.eclipse.swtbot.swt.finder.resolvers;

 import java.util.ArrayList;

 import java.util.Iterator;

 import java.util.List;

 import org.eclipse.swt.widgets.Widget;

 /**

  * @author Ketan Padegaonkar <KetanPadegaonkar [at] gmail [dot] com>

  * @version $Id$

  */

 public class DefaultChildrenResolver extends Resolvable implements IChildrenResolver {

         public List getChildren(Widget w) {

                 List result = new ArrayList();

                 if (!hasChildren(w))

                         return result;

                 List resolvers = resolver.getResolvers(w.getClass());

                 for (Iterator iterator = resolvers.iterator(); iterator.hasNext();) {

                         IChildrenResolver resolver = (IChildrenResolver) iterator.next();

                         if (resolver.canResolve(w) && resolver.hasChildren(w)) {

                                 List children = resolver.getChildren(w);

                                 if (children != null) {

                                         result.addAll(children);

                                         return result;

                                 }

                         }

                 }

                 return result;

         }

         public boolean hasChildren(Widget w) {

                 List resolvers = resolver.getResolvers(w.getClass());

                 for (Iterator iterator = resolvers.iterator(); iterator.hasNext();) {

                         IChildrenResolver resolver = (IChildrenResolver) iterator.next();

                         if (resolver.canResolve(w) && resolver.hasChildren(w))

                                 return true;

                 }

                 return false;

         }

 }