/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you 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 javax.faces.view.facelets;
  
  import java.io.IOException;
  
  import javax.faces.FactoryFinder;
  import javax.faces.component.UIComponent;
  
  /**
   * @since 2.0
   */
  public abstract class DelegatingMetaTagHandler extends MetaTagHandler
  {
      protected TagHandlerDelegateFactory delegateFactory;
      private TagAttribute binding;
      private TagAttribute disabled;
      
      public DelegatingMetaTagHandler(TagConfig config)
      {
          super(config);
          
          delegateFactory = (TagHandlerDelegateFactory)
              FactoryFinder.getFactory (FactoryFinder.TAG_HANDLER_DELEGATE_FACTORY);
          binding = getAttribute ("binding");
          disabled = getAttribute ("disabled");
      }
  
      /**
       * {@inheritDoc}
       */
      public void apply(FaceletContext ctx, UIComponent parent) throws IOException
      {
          getTagHandlerDelegate().apply(ctx, parent);
      }
  
      public void applyNextHandler(FaceletContext ctx, UIComponent c) throws IOException
      {
          nextHandler.apply (ctx, c);
      }
  
      public TagAttribute getBinding()
      {
          return binding;
      }
  
      public Tag getTag()
      {
          return tag;
      }
  
      public TagAttribute getTagAttribute(String localName)
      {
          return super.getAttribute (localName);
      }
  
      public String getTagId()
      {
          return tagId;
      }
  
      public boolean isDisabled(FaceletContext ctx)
      {
          if (disabled == null)
          {
              return false;
          }
          
          return disabled.getBoolean (ctx);
      }
  
      public void setAttributes(FaceletContext ctx, Object instance)
      {
          super.setAttributes (ctx, instance);
      }
  
      /**
       * {@inheritDoc}
       */
      @Override
      protected MetaRuleset createMetaRuleset(Class type)
      {
          return getTagHandlerDelegate().createMetaRuleset(type);
     }
 
     protected abstract TagHandlerDelegate getTagHandlerDelegate();
 
 }