/*
 *  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 org.apache.myfaces.trinidad.component;

import java.io.IOException;

import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;


/**
 * Base class for the switcher componnet.
 * <p>
 * @version $Name:  $ ($Revision: 518820 $) $Date: 2007-03-16 02:02:36 +0100 (Fri, 16 Mar 2007) $
 */
abstract public class UIXSwitcherTemplate extends UIXComponentBase
{
/**/ // Abstract methods implemented by code gen
/**/  abstract public String getFacetName();
/**/  abstract public String getDefaultFacet();

  /**
   * Only decode the currently active facet.
   */
  @Override
  public void processDecodes(FacesContext context)
  {
    UIComponent facet = _getFacet();
    if (facet != null)
      facet.processDecodes(context);
  }

  /**
   * Only process validations on the currently active facet.
   */
  @Override
  public void processValidators(FacesContext context)
  {
    UIComponent facet = _getFacet();
    if (facet != null)
      facet.processValidators(context);
  }


  /**
   * Only process updates on the currently active facet.
   */
  @Override
  public void processUpdates(FacesContext context)
  {
    UIComponent facet = _getFacet();
    if (facet != null)
      facet.processUpdates(context);
  }


  /**
   * Only render the currently active facet.
   */
  @Override
  public void encodeChildren(FacesContext context)
    throws IOException
  {
    UIComponent facet = _getFacet();
    if (facet != null)
      __encodeRecursive(context, facet);
  }


  /**
   * Override to return true.
   */
  @Override
  public boolean getRendersChildren()
  {
    return true;
  }

  private UIComponent _getFacet()
  {
    if (!isRendered())
      return null;

    String facetName = getFacetName();
    if (facetName != null)
    {
      UIComponent facet = getFacet(facetName);
      if (facet != null)
        return facet;
    }

    String defaultFacet = getDefaultFacet();
    if (defaultFacet != null)
      return getFacet(defaultFacet);

    return null;
  }

}

