/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you 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 org.apache.myfaces.view.facelets.pss.acid.component;
  
  import java.util.Iterator;
  
  import javax.faces.component.FacesComponent;
  import javax.faces.component.UIComponent;
  import javax.faces.component.UIComponentBase;
  import javax.faces.component.UIViewRoot;
  import javax.faces.component.html.HtmlInputText;
  import javax.faces.component.html.HtmlPanelGroup;
  import javax.faces.context.FacesContext;
  import javax.faces.event.AbortProcessingException;
  import javax.faces.event.PreRenderViewEvent;
  import javax.faces.event.SystemEvent;
  import javax.faces.event.SystemEventListener;
  
  @FacesComponent(value = "com.myapp.UIInputComponent")
  public class UIInputComponent extends UIComponentBase implements
          SystemEventListener
  {
  
      //
      // Constructor
      //
  
      public UIInputComponent()
      {
  
          setRendererType("testcomponent");
  
          FacesContext context = FacesContext.getCurrentInstance();
          UIViewRoot root = context.getViewRoot();
  
          root.subscribeToViewEvent(PreRenderViewEvent.class, this);
      }
  
      //
      // Public methods
      //
  
      @Override
      public String getFamily()
      {
  
          return "com.myapp";
      }
  
      public boolean isListenerForSource(Object source)
      {
  
          return (source instanceof UIViewRoot);
      }
  
      public void processEvent(SystemEvent event) throws AbortProcessingException
      {
  
          FacesContext context = FacesContext.getCurrentInstance();
  
          if (!context.isPostback())
          {
  
              UIComponent originalComponent = getChildren().remove(0);
  
              HtmlPanelGroup panelGroup = new HtmlPanelGroup();
              panelGroup
                      .setStyle("border: 1px dashed blue; padding: 5px; margin: 5px");
              getChildren().add(panelGroup);
  
              // Move original HtmlInputText inside new HtmlPanelGroup
  
              panelGroup.getChildren().add(originalComponent);
          }
          else
          {
              // If the algorithm do a refresh, the inputText is added again, but since it is inside
              // the HtmlPanelGroup, it is not affected by the c:if add/delete algorithm. We need to
              // remove that duplicate.
              for (Iterator<UIComponent> it = getChildren().iterator(); it
                      .hasNext();)
              {
                  if (it.next() instanceof HtmlInputText)
                 {
                     it.remove();
                 }
             }
         }
     }
 }