001    /*
002     * Copyright 2002-2004 the original author or authors.
003     * 
004     * Licensed under the Apache License, Version 2.0 (the "License"); you may not
005     * use this file except in compliance with the License. You may obtain a copy of
006     * the License at
007     * 
008     * http://www.apache.org/licenses/LICENSE-2.0
009     * 
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
012     * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
013     * License for the specific language governing permissions and limitations under
014     * the License.
015     */
016    package org.springframework.binding.value.swing;
017    
018    import java.awt.event.FocusEvent;
019    import java.awt.event.FocusListener;
020    
021    import javax.swing.text.JTextComponent;
022    
023    import org.springframework.binding.value.ValueModel;
024    import org.springframework.binding.value.support.AbstractValueModelAdapter;
025    import org.springframework.util.Assert;
026    
027    public class FocusLostTextComponentAdapter extends AbstractValueModelAdapter implements FocusListener {
028        private final JTextComponent control;
029    
030        public FocusLostTextComponentAdapter(JTextComponent component, ValueModel valueModel) {
031            super(valueModel);
032            Assert.notNull(component);
033            this.control = component;
034            this.control.addFocusListener(this);
035            initalizeAdaptedValue();
036        }
037    
038        protected void valueModelValueChanged(Object value) {
039            control.setText((String)value);
040        }
041    
042        public void focusLost(FocusEvent e) {
043            adaptedValueChanged(control.getText());
044        }
045    
046        public void focusGained(FocusEvent e) {
047        }
048    }