com.ocpsoft.pretty.util.FacesStateUtils Maven / Gradle / Ivy

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/*
 * 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.util;

import java.util.Map;

import javax.faces.context.FacesContext;

/**
 * @author lb3
 */
public class FacesStateUtils
{
    /**
     * Determine if the current request/FacesContext is in PostBack state
     */
    public boolean isPostback()
    {
        FacesContext facesContext = FacesContext.getCurrentInstance();
        Map requestScope = (Map) facesContext.getApplication().createValueBinding("#{requestScope}").getValue(
                facesContext);
        boolean ispostback = ((Boolean) requestScope.get("ispostback")).booleanValue();
        return ispostback;
    }
}