/*

  * Copyright 2004-2008 the Seasar Foundation and the Others.

  *

  * Licensed under the Apache License, Version 2.0 (the "License");

  * you may not use this file except in compliance with the License.

  * You may obtain a copy of the License at

  *

  *     http://www.apache.org/licenses/LICENSE-2.0

  *

  * Unless required by applicable law or agreed to in writing, software

  * distributed under the License is distributed on an "AS IS" BASIS,

  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, 

  * either express or implied. See the License for the specific language

  * governing permissions and limitations under the License.

  */

 package org.seasar.uruma.binding.enables;

 import java.util.Set;

 import org.seasar.uruma.context.WidgetHandle;

 import org.seasar.uruma.context.WindowContext;

 import org.seasar.uruma.core.UrumaMessageCodes;

 import org.seasar.uruma.exception.NotFoundException;

 /**

  * EnablesDepending のセットアップを行うクラスです。<br />

  * 

  * @author y-komori

  */

 public class EnablesDependingListenerSupport {

     private EnablesDependingListenerSupport() {

     }

     /**

      * {@link WindowContext} が保持する {@link EnablesDependingDef} について、{@link EnablesDependingListener}

      * をセットアップして EnablesDepending が機能するようにします。<br />

      * 

      * @param context

      *            {@link WindowContext} オブジェクト

      */

     public static void setupEnableDependingListeners(final WindowContext context) {

         for (EnablesDependingDef def : context.getEnablesDependingDefList()) {

             String targetId = def.getTargetId();

             Set<WidgetHandle> handles = context.findWidgetHandles(targetId);

             if (handles.size() > 0) {

                 for (WidgetHandle handle : handles) {

                     EnablesDependingListener listener = EnablesDependingListenerFactory

                             .getListener(handle, def.getWidgetHandle(), def

                                     .getType());

                     listener.setupListener();

                     listener.updateEnableState();

                 }

             } else {

                 throw new NotFoundException(

                         UrumaMessageCodes.ENABLES_DEPENDING_TARGET_NOT_FOUND,

                         targetId);

             }

         }

     }

 }