001    package org.apache.myfaces.tobago.example.demo;
002    
003    /*
004     * Licensed to the Apache Software Foundation (ASF) under one or more
005     * contributor license agreements.  See the NOTICE file distributed with
006     * this work for additional information regarding copyright ownership.
007     * The ASF licenses this file to You under the Apache License, Version 2.0
008     * (the "License"); you may not use this file except in compliance with
009     * the License.  You may obtain a copy of the License at
010     *
011     *      http://www.apache.org/licenses/LICENSE-2.0
012     *
013     * Unless required by applicable law or agreed to in writing, software
014     * distributed under the License is distributed on an "AS IS" BASIS,
015     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
016     * See the License for the specific language governing permissions and
017     * limitations under the License.
018     */
019    
020    import org.apache.myfaces.tobago.util.VariableResolverUtil;
021    
022    import javax.faces.component.UIViewRoot;
023    import javax.faces.context.FacesContext;
024    import javax.faces.event.PhaseEvent;
025    import javax.faces.event.PhaseId;
026    import javax.faces.event.PhaseListener;
027    
028    public class SynchronizeNavigationPhaseListener implements PhaseListener {
029    
030      public void beforePhase(PhaseEvent event) {
031      }
032    
033      public void afterPhase(PhaseEvent event) {
034        // synchronizing direct links with controller
035        FacesContext facesContext = FacesContext.getCurrentInstance();
036        UIViewRoot viewRoot = facesContext.getViewRoot();
037        if (viewRoot.getChildCount() == 0) { // in case of direct links the ViewRoot is empty after "restore view".
038          String viewId = viewRoot.getViewId();
039          Navigation navigation = (Navigation) VariableResolverUtil.resolveVariable(facesContext, "navigation");
040          navigation.updateMarker(viewId);
041        }
042      }
043    
044      public PhaseId getPhaseId() {
045        return PhaseId.RESTORE_VIEW;
046      }
047    }