/*
    * 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.trinidad.event;
  
  import javax.faces.component.UIComponent;
  
  import javax.faces.event.FacesEvent;
  import javax.faces.event.FacesListener;
  
  
  /** 
   * Event delivered when expanding or collapsing a component.
   * <p>
   * @version $Name:  $ ($Revision: adfrt/faces/adf-faces-api/src/main/java/oracle/adf/view/faces/event/DisclosureEvent.java#0 $) $Date: 10-nov-2005.19:09:00 $
   */
  public class DisclosureEvent extends FacesEvent
  {
    public DisclosureEvent(UIComponent source, boolean expanded)
    {
      super(source);
      _expanded = expanded;
    }
  
    public boolean isExpanded()
    {
      return _expanded;
    }
  
    @Override
    public void processListener(FacesListener listener)
    {
      ((DisclosureListener) listener).processDisclosure(this);
    }
  
    @Override
    public boolean isAppropriateListener(FacesListener listener)
    {
      return (listener instanceof DisclosureListener);
    }
    
    @Override
    public int hashCode()
    {
      int expandedHC = (_expanded ? Boolean.TRUE.hashCode() 
                                  : Boolean.FALSE.hashCode());
      return (expandedHC << 4) ^
             (getPhaseId().hashCode() << 8) ^
             (getComponent().hashCode());
    }
    
    @Override
    public boolean equals(Object o)
    {
      if (o instanceof DisclosureEvent)
      {
        DisclosureEvent that = (DisclosureEvent)o;
        return (this._expanded == that._expanded &&
                this.getComponent().equals(that.getComponent()) &&
                this.getPhaseId().equals(that.getPhaseId()));
      }
      
      return false;
    }
  
    @Override
    public String toString()
    {
      StringBuffer sb = new StringBuffer();
      sb.append(getClass().getName());
      sb.append("[phaseId=");
      sb.append(getPhaseId());
      sb.append(",component=");
      sb.append(getComponent());
      sb.append(",expanded=");
      sb.append(isExpanded());
      sb.append(']');
      return sb.toString();
    }
  
    private final boolean _expanded;
    private static final long serialVersionUID = 1L;
  }