/*

  * $Id$

  *

  * The contents of this file are subject to the Mozilla Public License 

  * Version 1.1 (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.mozilla.org/MPL/ 

  *

  * Software distributed under the License is distributed on an "AS IS" basis, 

  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License 

  * for the specific language governing rights and limitations under the License.

  *

  * The Original Code is XML Hammer code. (org.xmlhammer.*)

  *

  * The Initial Developer of the Original Code is Edwin Dankert. Portions created 

  * by the Initial Developer are Copyright (C) 2005 - 2006 the Initial Developer. 

  * All Rights Reserved.

  *

  * Contributor(s): Edwin Dankert <edankert@gmail.com>

  */

 package org.xmlhammer.gui.history;

 import javax.swing.InputVerifier;

 import javax.swing.JComponent;

 public class HistoryInputVerifier extends InputVerifier {

     private HistoryComboBox combo = null;

     public HistoryInputVerifier(HistoryComboBox combo) {

         this.combo = combo;

     }

     @Override

     public boolean verify(JComponent component) {

         setValue();

         return true;

     }

     public HistoryComboBox getCombo() {

         return combo;        

     }

     protected void setValue() {

         if (!combo.isEmpty()) {

             Object previous = combo.getSelectedItem();

             if ( previous != null) {

                 previous = previous.toString().trim();

             }

             HistoryComboBoxModel model = (HistoryComboBoxModel)combo.getModel();

             String value = combo.getEditor().getItem().toString().trim();

             if ( value != previous && !value.equals(previous)) {

 //            if ( value != null && value.length() > 0) {

                 ((HistoryComboBoxEditor)combo.getEditor()).setChangable(false);

                 model.add(value);

                 combo.setSelectedItem(value);

                 ((HistoryComboBoxEditor)combo.getEditor()).setChangable(true);

 //                if ( value != previous && !value.equals(previous)) {

                     combo.getEditor().setItem( value);

 //                }

             }

         } else {

             ((HistoryComboBoxEditor)combo.getEditor()).setChangable(false);

             combo.setSelectedItem(null);

             ((HistoryComboBoxEditor)combo.getEditor()).setChangable(true);

         }

     }

 }