/**
 * Copyright (c) 2009 Juwi MacMillan Group GmbH
 *
 * Licensed 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 de.juwimm.cms.gui.controls;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;

import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.JComponent;
import javax.swing.JSpinner;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.event.TableModelEvent;
import javax.swing.event.TableModelListener;

/**
 * @author <a href="florin.zalum@juwimm.com">Florin Zalum</a>
 * @version $Id$
 * Used for different control types(JTextField,JComboBox,JSpinner,JTable) to detect value changes.
 */
public abstract class DirtyInputListener {

	/**
	 * Called when a control changes his value.
	 */
	public abstract void onChangeValue();

	public static void addDirtyInputListener(JComponent component, final DirtyInputListener listener) {
		if (component instanceof JTextField) {
			((JTextField) component).getDocument().addDocumentListener(new DocumentListener() {

				public void changedUpdate(DocumentEvent e) {
					listener.onChangeValue();
				}

				public void insertUpdate(DocumentEvent e) {
					listener.onChangeValue();
				}

				public void removeUpdate(DocumentEvent e) {
					listener.onChangeValue();
				}

			});
		} else if (component instanceof JComboBox) {
			((JComboBox) component).addItemListener(new ItemListener() {
				public void itemStateChanged(ItemEvent e) {
					listener.onChangeValue();
				}
			});
		} else if (component instanceof JSpinner) {
			((JSpinner) component).addChangeListener(new ChangeListener() {
				public void stateChanged(ChangeEvent e) {
					listener.onChangeValue();
				}

			});
		} else if (component instanceof JTable) {
			JTable table = (JTable) component;
			table.getModel().addTableModelListener(new TableModelListener() {
				public void tableChanged(TableModelEvent e) {
					listener.onChangeValue();
				}
			});
		} else if (component instanceof JButton) {
			JButton button = (JButton) component;
			button.addActionListener(new ActionListener() {
				public void actionPerformed(ActionEvent e) {
					listener.onChangeValue();
				}

			});
		} else if (component instanceof JCheckBox) {
			JCheckBox checkbox = (JCheckBox) component;
			checkbox.addActionListener(new ActionListener() {

				public void actionPerformed(ActionEvent e) {
					listener.onChangeValue();
				}

			});
		}
	}

}