FacesStateUtils.java

/*
 * Copyright 2010 Lincoln Baxter, III
 * 
 * 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 com.ocpsoft.pretty.faces.util;

import javax.faces.FactoryFinder;
import javax.faces.context.FacesContext;
import javax.faces.render.RenderKit;
import javax.faces.render.RenderKitFactory;

/**
 * @author lb3
 */
public class FacesStateUtils
{
   /**
    * Determine if the current request/FacesContext is in PostBack state
    */
   public static boolean isPostback(final FacesContext context)
   {
      RenderKitFactory factory = (RenderKitFactory) FactoryFinder.getFactory(FactoryFinder.RENDER_KIT_FACTORY);
      RenderKit renderKit = factory.getRenderKit(context, RenderKitFactory.HTML_BASIC_RENDER_KIT);
      return renderKit.getResponseStateManager().isPostback(context);
   }
}