/**
 * Copyright (C) 2009 eXo Platform SAS.
 * 
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 * 
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.exoplatform.webui.form;

import org.exoplatform.webui.application.WebuiRequestContext;

import java.io.Writer;

/**
 * Created by The eXo Platform SARL
 * Author : lxchiati  
 *          lebienthuyt@gmail.com 
 * Jun 6, 2006
 * 
 * Repesents a hidden input field
 */
public class UIFormHiddenInput extends UIFormInputBase<String>
{

   public UIFormHiddenInput(String name, String bindingExpression, String value)
   {
      super(name, bindingExpression, String.class);
      this.value_ = value;
   }

   public UIFormHiddenInput(String name, String value)
   {
      this(name, null, value);
   }

   @SuppressWarnings("unused")
   public void decode(Object input, WebuiRequestContext context) throws Exception
   {
      value_ = (String)input;
      if (value_ != null && value_.length() == 0)
         value_ = null;
   }

   public void processRender(WebuiRequestContext context) throws Exception
   {
      Writer print = context.getWriter();
      print.write("<input name='");
      print.write(getName());
      print.write("'  type='hidden'");
      print.write(" id='");
      print.write(getId());
      print.write("'");
      if (value_ != null && value_.length() > 0)
      {
         print.write(" value='");
         print.write(value_);
         print.write("'");
      }
      print.write(" />");
   }
}