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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  
20  package org.apache.myfaces.tobago.internal.ajax;
21  
22  import org.slf4j.Logger;
23  import org.slf4j.LoggerFactory;
24  
25  import javax.faces.context.FacesContext;
26  import javax.faces.event.PhaseEvent;
27  import javax.faces.event.PhaseId;
28  import javax.faces.event.PhaseListener;
29  
30  public class AjaxNavigationListener implements PhaseListener {
31  
32    private static final Logger LOG = LoggerFactory.getLogger(AjaxNavigationListener.class);
33  
34    @Override
35    public void afterPhase(final PhaseEvent phaseEvent) {
36      final FacesContext facesContext = phaseEvent.getFacesContext();
37      debug(facesContext);
38      if (!facesContext.getResponseComplete()) {
39        if (phaseEvent.getPhaseId() == PhaseId.RESTORE_VIEW) {
40          AjaxNavigationState.afterRestoreView(facesContext);
41        } else if (phaseEvent.getPhaseId() == PhaseId.INVOKE_APPLICATION) {
42          AjaxNavigationState.afterInvokeApplication(facesContext);
43        }
44      }
45      debug(facesContext);
46    }
47  
48    @Override
49    public void beforePhase(final PhaseEvent phaseEvent) {
50      final FacesContext facesContext = phaseEvent.getFacesContext();
51      debug(facesContext);
52      if (!facesContext.getResponseComplete() && phaseEvent.getPhaseId() == PhaseId.RESTORE_VIEW) {
53        AjaxNavigationState.beforeRestoreView(facesContext);
54      }
55      debug(facesContext);
56    }
57  
58    private void debug(FacesContext facesContext) {
59      if (LOG.isTraceEnabled()) {
60        LOG.trace("### debug getRenderResponse = {}", facesContext.getRenderResponse());
61        if (facesContext.getViewRoot() != null) {
62          LOG.trace("### debug getViewId = {}", facesContext.getViewRoot().getViewId());
63        }
64      }
65    }
66  
67    @Override
68    public PhaseId getPhaseId() {
69      return PhaseId.ANY_PHASE;
70    }
71  
72  }