/*
    * 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.context.impl;
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.HashSet;
  import java.util.List;
  import java.util.Set;
  
  import org.seasar.uruma.binding.enables.EnablesDependingDef;
  import org.seasar.uruma.context.ApplicationContext;
  import org.seasar.uruma.context.PartContext;
  import org.seasar.uruma.context.WidgetHandle;
  import org.seasar.uruma.context.WindowContext;
  import org.seasar.uruma.desc.FormDesc;
  import org.seasar.uruma.desc.PartActionDesc;
  import org.seasar.uruma.exception.DuplicateComponentIdException;
  import org.seasar.uruma.util.AssertionUtil;
  
  /**
   * {@link WindowContext} の実装クラスです。<br />
   * 
   * @author y-komori
   */
  public class WindowContextImpl extends AbstractWidgetHolder implements
          WindowContext {
  
      private String windowName;
  
      private List<PartContext> partContextList = new ArrayList<PartContext>();
  
      private ApplicationContextImpl parent;
  
      private List<EnablesDependingDef> enablesDependingDefList = new ArrayList<EnablesDependingDef>();
  
      private Object partActionObj;
  
      private PartActionDesc partActionDesc;
  
      /**
       * {@link WindowContextImpl} を構築します。<br />
       * 
       * @param windowName
       *            ウィンドウ名称
       * @param parent
       *            親 {@link ApplicationContext}
       */
      public WindowContextImpl(final String windowName,
              final ApplicationContext parent) {
          super();
  
          this.windowName = windowName;
          this.parent = (ApplicationContextImpl) parent;
      }
  
      /*
       * @see org.seasar.uruma.context.WindowContext#getWindowName()
       */
      public String getName() {
          return this.windowName;
      }
  
      /*
       * @see org.seasar.uruma.context.WindowContext#getPartContext()
       */
      public PartContext getPartContext() {
          if ((partContextList != null) && (partContextList.size() > 0)) {
              return partContextList.get(0);
          } else {
              return null;
          }
      }
  
      /*
       * @see org.seasar.uruma.context.WindowContext#getPartContext(java.lang.String)
       */
      public PartContext getPartContext(final String partName) {
          for (PartContext context : partContextList) {
              if (context.getName().equals(partName)) {
                  return context;
              }
          }
          return null;
      }
  
     /*
      * @see org.seasar.uruma.context.WindowContext#getPartContextList()
      */
     public List<PartContext> getPartContextList() {
         return Collections.unmodifiableList(partContextList);
     }
 
     /*
      * @see org.seasar.uruma.context.WindowContext#getApplicationContext()
      */
     public ApplicationContext getApplicationContext() {
         return parent;
     }
 
     /**
      * {@link PartContext} オブジェクトを追加します。<br />
      * 
      * @param context
      *            {@link PartContext} オブジェクト
      * @throws DuplicateComponentIdException
      *             パート名称が既に登録されている場合
      */
     public void addPartContext(final PartContext context) {
         if (getPartContext(context.getName()) == null) {
             partContextList.add(context);
         } else {
             throw new DuplicateComponentIdException(context.getName());
         }
     }
 
     /**
      * {@link PartContext} オブジェクトを削除します。<br />
      * 
      * @param partName
      *            パート名称
      */
     public void disposePartContext(final String partName) {
         PartContext partContext = getPartContext(partName);
         if (partContext != null) {
             partContextList.remove(partContext);
         }
     }
 
     /**
      * この {@link WindowContext} を親 {@link ApplicationContext} から削除します。<br />
      */
     public void dispose() {
         for (PartContext part : partContextList) {
             disposePartContext(part.getName());
         }
         parent.disposeWindowContext(windowName);
         parent = null;
     }
 
     /*
      * @see org.seasar.uruma.context.WindowContext#findWidgetHandles(java.lang.String)
      */
     public Set<WidgetHandle> findWidgetHandles(final String handleId) {
         Set<WidgetHandle> results = new HashSet<WidgetHandle>();
 
         WidgetHandle handle = getWidgetHandle(handleId);
         if (handle != null) {
             results.add(handle);
         }
 
         for (PartContext part : getPartContextList()) {
             handle = part.getWidgetHandle(handleId);
             if (handle != null) {
                 results.add(handle);
             }
         }
         return results;
     }
 
     /*
      * @see org.seasar.uruma.context.WindowContext#getAllWidgetHandles(java.lang.Class)
      */
     public Set<WidgetHandle> getAllWidgetHandles(final Class<?> clazz) {
         Set<WidgetHandle> handles = new HashSet<WidgetHandle>();
         handles.addAll(getWidgetHandles(clazz));
 
         for (PartContext part : getPartContextList()) {
             handles.addAll(part.getWidgetHandles(clazz));
         }
 
         return handles;
     }
 
     /*
      * @see org.seasar.uruma.context.WindowContext#addEnablesDependingDef(org.seasar
      *      .uruma.binding.enables.EnablesDependingDef)
      */
     public void addEnablesDependingDef(
             final EnablesDependingDef enablesDependingDef) {
         AssertionUtil.assertNotNull("enablesDependingDef", enablesDependingDef);
         enablesDependingDefList.add(enablesDependingDef);
     }
 
     /*
      * @see org.seasar.uruma.context.WindowContext#getEnablesDependingDefList()
      */
     public List<EnablesDependingDef> getEnablesDependingDefList() {
         return Collections.unmodifiableList(enablesDependingDefList);
     }
 
     /*
      * @see org.seasar.uruma.context.PartContext#getPartActionObject()
      */
     public Object getPartActionObject() {
         return this.partActionObj;
     }
 
     /*
      * @see org.seasar.uruma.context.PartContext#getPartActionObject()
      */
     public void setPartActionDesc(final PartActionDesc desc) {
         this.partActionDesc = desc;
     }
 
     /*
      * @see org.seasar.uruma.context.PartContext#setPartActionObject(java.
      *      lang.Object)
      */
     public void setPartActionObject(final Object partActionObj) {
         this.partActionObj = partActionObj;
     }
 
     /*
      * @see org.seasar.uruma.context.PartContext#getPartActionDesc()
      */
     public PartActionDesc getPartActionDesc() {
         return this.partActionDesc;
     }
 
     /*
      * @see org.seasar.uruma.context.PartContext#getPartActionDesc()
      */
     public WindowContext getWindowContext() {
         return this;
     }
 
     /*
      * @see org.seasar.uruma.context.PartContext#getFormDesc()
      */
     public FormDesc getFormDesc() {
         // Do noting
         return null;
     }
 
     /*
      * @see org.seasar.uruma.context.PartContext#getFormObject()
      */
     public Object getFormObject() {
         // Do noting
         return null;
     }
 
     /*
      * @see org.seasar.uruma.context.PartContext#setFormDesc()
      */
     public void setFormDesc(final FormDesc desc) {
         // Do noting
     }
 
     /*
      * @see org.seasar.uruma.context.PartContext#setFormObject()
      */
     public void setFormObject(final Object object) {
         // Do noting
     }
 
 }