/*
* Copyright (C) 2007 Rob Manning
* manningr@users.sourceforge.net
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package net.sourceforge.squirrel_sql.client.preferences;
import java.awt.*;
import java.awt.event.*;
import javax.swing.BorderFactory;
import javax.swing.Box;
import javax.swing.ButtonGroup;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JSeparator;
import javax.swing.JTextField;
import javax.swing.SwingConstants;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import net.sourceforge.squirrel_sql.client.IApplication;
import net.sourceforge.squirrel_sql.client.preferences.UpdateChannelComboBoxEntry.ChannelType;
import net.sourceforge.squirrel_sql.client.update.UpdateCheckFrequency;
import net.sourceforge.squirrel_sql.client.update.UpdateUtil;
import net.sourceforge.squirrel_sql.client.update.UpdateUtilImpl;
import net.sourceforge.squirrel_sql.fw.util.StringManager;
import net.sourceforge.squirrel_sql.fw.util.StringManagerFactory;
import org.apache.commons.lang.StringUtils;
public class UpdatePreferencesPanel extends JPanel
{
private static final Color CONNECTION_FAILURE_COLOR = Color.RED;
private static final Color CONNECTION_SUCCESS_COLOR = new Color(67, 181, 118);
/** Internationalized strings for this class. */
private static final StringManager s_stringMgr =
StringManagerFactory.getStringManager(UpdatePreferencesPanel.class);
private static final UpdateUtil _updateUtil = new UpdateUtilImpl();
static interface i18n
{
// i18n[UpdatePreferencesPanel.atStartupLabel=At Startup]
String AT_STARTUP_LABEL = s_stringMgr.getString("UpdatePreferencesPanel.atStartupLabel");
// i18n[UpdatePreferencesPanel.autoBorderLabel=Automatic Updates]
String AUTO_BORDER_LABEL = s_stringMgr.getString("UpdatePreferencesPanel.autoBorderLabel");
// i18n[UpdatePreferencesPanel.autoCheckFrequency=How often to check for
// updates:]
String AUTO_CHECK_FREQUENCY = s_stringMgr.getString("UpdatePreferencesPanel.autoCheckFrequency");
// i18n[UpdatePreferencesPanel.channel=Channel:]
String CHANNEL = s_stringMgr.getString("UpdatePreferencesPanel.channel");
// i18n[UpdatePreferencesPanel.updateSiteBorderLabel=Update Site]
String UPDATE_SITE_BORDER_LABEL = s_stringMgr.getString("UpdatePreferencesPanel.updateSiteBorderLabel");
// i18n[UpdatePreferencesPanel.enableAutoUpdate=Enable Automatic Updates]
String ENABLE_AUTO_UPDATE = s_stringMgr.getString("UpdatePreferencesPanel.enableAutoUpdate");
// i18n[UpdatePreferencesPanel.localPathLabel=Local Path:]
String LOCAL_PATH = s_stringMgr.getString("UpdatePreferencesPanel.localPathLabel");
// i18n[UpdatePreferencesPanel.localSiteButtonLabel=Local]
String LOCAL_SITE_BUTTON_LABEL = s_stringMgr.getString("UpdatePreferencesPanel.localSiteButtonLabel");
// i18n[UpdatePreferencesPanel.path=Path:]
String PATH = s_stringMgr.getString("UpdatePreferencesPanel.path");
// i18n[UpdatePreferencesPanel.port=Port:]
String PORT = s_stringMgr.getString("UpdatePreferencesPanel.port");
// i18n[UpdatePreferencesPanel.server=Server:]
String SERVER = s_stringMgr.getString("UpdatePreferencesPanel.server");
// i18n[UpdatePreferencesPanel.dailyLabel=Daily]
String DAILY_LABEL = s_stringMgr.getString("UpdatePreferencesPanel.dailyLabel");
// i18n[UpdatePreferencesPanel.weeklyLabel=Weekly]
String WEEKLY_LABEL = s_stringMgr.getString("UpdatePreferencesPanel.weeklyLabel");
// i18n[UpdatePreferencesPanel.remoteSiteButtonLabel=Remote]
String REMOTE_SITE_BUTTON_LABEL = s_stringMgr.getString("UpdatePreferencesPanel.remoteSiteButtonLabel");
// i18n[UpdatePreferencesPanel.siteTypeLabel=Site Type:]
String SITE_TYPE_LABEL = s_stringMgr.getString("UpdatePreferencesPanel.siteTypeLabel");
// i18n[UpdatePreferencesPanel.testLabel=Test Connection]
String TEST_LABEL = s_stringMgr.getString("UpdatePreferencesPanel.testLabel");
// i18n[UpdatePreferencesPanel.urlLabel=Url:]
String URL = s_stringMgr.getString("UpdatePreferencesPanel.urlLabel");
// i18n[UpdatePreferencesPanel.statusLableSuccessMsg=Connected Successfully]
String STATUS_LABEL_SUCCESS_MSG = s_stringMgr.getString("UpdatePreferencesPanel.statusLableSuccessMsg");
// i18n[UpdatePreferencesPanel.statusLableFailureMsg=Connection failed. See log for error.]
String STATUS_LABEL_FAILURE_MSG = s_stringMgr.getString("UpdatePreferencesPanel.statusLableFailureMsg");
// i18n[UpdatePreferencesPanel.connectionFailureDialogMsg=Unable to download release.xml from the
// specified location]
String CONNECTION_FAILURE_DIALOG_MSG =
s_stringMgr.getString("UpdatePreferencesPanel.connectionFailureDialogMsg");
}
private static final long serialVersionUID = 6411907298042579120L;
private JLabel _serverLabel = null;
private JLabel _portLabel = null;
private JLabel _pathLabel = null;
private JLabel _localPathLabel = null;
private JLabel _channelLabel = null;
private JLabel _urlLabel = null;
private JTextField _updateServerName = new JTextField();
private JTextField _updateServerPort = new JTextField();
private JTextField _updateServerPath = new JTextField();
private JTextField _localPath = new JTextField();
private JTextField _updateUrl = new JTextField();
private JLabel siteTypeLabel = null;
private JRadioButton _remoteTypeButton = new JRadioButton(i18n.REMOTE_SITE_BUTTON_LABEL);
private JRadioButton _localTypeButton = new JRadioButton(i18n.LOCAL_SITE_BUTTON_LABEL);
private ButtonGroup _updateSiteTypeGroup = new ButtonGroup();
private UpdateChannelComboBoxEntry stableChannel =
new UpdateChannelComboBoxEntry(ChannelType.STABLE, "stable");
private UpdateChannelComboBoxEntry snapshotChannel =
new UpdateChannelComboBoxEntry(ChannelType.SNAPSHOT, "snapshot");
private JComboBox _updateServerChannel = new JComboBox(new Object[] { stableChannel, snapshotChannel });
private JCheckBox _enableAutoUpdateChk = new JCheckBox(i18n.ENABLE_AUTO_UPDATE);
private UpdateCheckFrequencyComboBoxEntry checkAtStartup =
new UpdateCheckFrequencyComboBoxEntry(UpdateCheckFrequency.STARTUP, i18n.AT_STARTUP_LABEL);
private UpdateCheckFrequencyComboBoxEntry checkDaily =
new UpdateCheckFrequencyComboBoxEntry(UpdateCheckFrequency.DAILY, i18n.DAILY_LABEL);
private UpdateCheckFrequencyComboBoxEntry checkWeekly =
new UpdateCheckFrequencyComboBoxEntry(UpdateCheckFrequency.WEEKLY, i18n.WEEKLY_LABEL);
private JComboBox _updateCheckFrequency =
new JComboBox(new Object[] { checkAtStartup, checkDaily, checkWeekly });
private JButton _testConnectionButton = new JButton(i18n.TEST_LABEL);
private JLabel _testConnectionStatusLabel = new JLabel();
private final Insets SEP_INSETS = new Insets(10, 14, 0, 14);
private final Insets LABEL_INSETS = new Insets(2, 28, 6, 0);
private final Insets FIELD_INSETS = new Insets(2, 8, 6, 28);
private IApplication _app;
private PrefrenceTabActvivationListener _prefrenceTabActvivationListener;
public UpdatePreferencesPanel(PrefrenceTabActvivationListener prefrenceTabActvivationListener)
{
super(new GridBagLayout());
_prefrenceTabActvivationListener = prefrenceTabActvivationListener;
createUserInterface();
}
void loadData(SquirrelPreferences prefs)
{
final IUpdateSettings updateSettings = prefs.getUpdateSettings();
_updateServerName.setText(updateSettings.getUpdateServer());
_updateServerPort.setText(updateSettings.getUpdateServerPort());
_updateServerPath.setText(updateSettings.getUpdateServerPath());
String channelStr = updateSettings.getUpdateServerChannel();
_updateServerChannel.setSelectedItem(stableChannel);
if (channelStr != null && channelStr.equals(ChannelType.SNAPSHOT.name()))
{
_updateServerChannel.setSelectedItem(snapshotChannel);
}
_enableAutoUpdateChk.setSelected(updateSettings.isEnableAutomaticUpdates());
UpdateCheckFrequency updateCheckFrequency =
UpdateCheckFrequency.getEnumForString(updateSettings.getUpdateCheckFrequency());
if (updateCheckFrequency == UpdateCheckFrequency.DAILY)
{
_updateCheckFrequency.setSelectedItem(checkDaily);
}
if (updateCheckFrequency == UpdateCheckFrequency.STARTUP)
{
_updateCheckFrequency.setSelectedItem(checkAtStartup);
}
if (updateCheckFrequency == UpdateCheckFrequency.WEEKLY)
{
_updateCheckFrequency.setSelectedItem(checkWeekly);
}
if (updateSettings.isRemoteUpdateSite())
{
_remoteTypeButton.setSelected(true);
enableRemoteSite();
}
else
{
_localTypeButton.setSelected(true);
enableLocalPath();
}
_localPath.setText(updateSettings.getFileSystemUpdatePath());
updateControlStatus();
updateUrl();
}
void applyChanges(SquirrelPreferences prefs)
{
final IUpdateSettings updateSettings = new UpdateSettings();
updateSettings.setUpdateServer(_updateServerName.getText());
updateSettings.setUpdateServerPort(_updateServerPort.getText());
updateSettings.setUpdateServerPath(_updateServerPath.getText());
UpdateChannelComboBoxEntry channelEntry =
(UpdateChannelComboBoxEntry) _updateServerChannel.getSelectedItem();
String channelStr = ChannelType.STABLE.name();
if (channelEntry.isSnapshot())
{
channelStr = ChannelType.SNAPSHOT.name();
}
updateSettings.setUpdateServerChannel(channelStr);
updateSettings.setEnableAutomaticUpdates(_enableAutoUpdateChk.isSelected());
UpdateCheckFrequencyComboBoxEntry freqEntry =
(UpdateCheckFrequencyComboBoxEntry) _updateCheckFrequency.getSelectedItem();
updateSettings.setUpdateCheckFrequency(freqEntry.getUpdateCheckFrequencyEnum().name());
updateSettings.setRemoteUpdateSite(_remoteTypeButton.isSelected());
updateSettings.setFileSystemUpdatePath(_localPath.getText());
prefs.setUpdateSettings(updateSettings);
}
private void updateControlStatus()
{
final boolean enableAutoCheck = _enableAutoUpdateChk.isSelected();
_updateCheckFrequency.setEnabled(enableAutoCheck);
}
private void createUserInterface()
{
final GridBagConstraints gbc = new GridBagConstraints();
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.insets = new Insets(4, 4, 4, 4);
gbc.gridx = 0;
gbc.gridy = 0;
gbc.weightx = 1;
add(createUpdateSitePanel(), gbc);
++gbc.gridy;
add(createAutoUpdatePanel(), gbc);
final ActionListener lis = new MyActionHandler();
_enableAutoUpdateChk.addActionListener(lis);
}
private JPanel createUpdateSitePanel()
{
JPanel pnl = new JPanel(new GridBagLayout());
pnl.setBorder(BorderFactory.createTitledBorder(i18n.UPDATE_SITE_BORDER_LABEL));
ItemListener urlUpdateItemListener = new UrlItemListener();
DocumentListener urlDocumentListener = new UrlDocumentListener();
final GridBagConstraints gbc = new GridBagConstraints();
setSeparatorConstraints(gbc, 0);
gbc.gridwidth = 1;
gbc.weightx = 0;
gbc.fill = GridBagConstraints.NONE;
gbc.anchor = GridBagConstraints.EAST;
siteTypeLabel = new JLabel(i18n.SITE_TYPE_LABEL, JLabel.RIGHT);
pnl.add(siteTypeLabel, gbc);
// Site type
setSeparatorConstraints(gbc, 0);
gbc.gridx = 1;
gbc.gridwidth = 1;
gbc.fill = GridBagConstraints.NONE;
pnl.add(getSiteTypePanel(), gbc);
setSeparatorConstraints(gbc, 1);
pnl.add(getSep(), gbc);
// Update server name
setLabelConstraints(gbc, 2);
_serverLabel = new JLabel(i18n.SERVER, SwingConstants.RIGHT);
pnl.add(_serverLabel, gbc);
setFieldConstraints(gbc, 2);
_updateServerName.getDocument().addDocumentListener(urlDocumentListener);
pnl.add(_updateServerName, gbc);
// Update server port
setLabelConstraints(gbc, 3);
_portLabel = new JLabel(i18n.PORT, SwingConstants.RIGHT);
pnl.add(_portLabel, gbc);
setFieldConstraints(gbc, 3);
_updateServerPort.getDocument().addDocumentListener(urlDocumentListener);
pnl.add(_updateServerPort, gbc);
// Path to release.xml
setLabelConstraints(gbc, 4);
_pathLabel = new JLabel(i18n.PATH, SwingConstants.RIGHT);
pnl.add(_pathLabel, gbc);
setFieldConstraints(gbc, 4);
_updateServerPath.getDocument().addDocumentListener(urlDocumentListener);
pnl.add(_updateServerPath, gbc);
// Channnel combo-box
setLabelConstraints(gbc, 5);
_channelLabel = new JLabel(i18n.CHANNEL, SwingConstants.RIGHT);
pnl.add(_channelLabel, gbc);
setFieldConstraints(gbc, 5);
gbc.fill = GridBagConstraints.NONE;
_updateServerChannel.addItemListener(urlUpdateItemListener);
pnl.add(_updateServerChannel, gbc);
// URL text field
setLabelConstraints(gbc, 6);
_urlLabel = new JLabel(i18n.URL, SwingConstants.RIGHT);
pnl.add(_urlLabel, gbc);
setFieldConstraints(gbc, 6);
updateUrl();
pnl.add(_updateUrl, gbc);
setFieldConstraints(gbc, 7);
JLabel lblProxy = new JLabel(s_stringMgr.getString("UpdatePreferencesPanel.proxyHintHtml"));
lblProxy.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
lblProxy.addMouseListener(new MouseAdapter()
{
@Override
public void mouseClicked(MouseEvent e)
{
_prefrenceTabActvivationListener.activateTabForClass(ProxyPreferenceTabComponent.class);
}
});
pnl.add(lblProxy, gbc);
// Test Connection Button Panel (Both the button and the status label
setFieldConstraints(gbc, 8);
Box buttonBox = Box.createHorizontalBox();
buttonBox.add(_testConnectionButton);
buttonBox.add(Box.createHorizontalStrut(20));
buttonBox.add(_testConnectionStatusLabel);
_testConnectionButton.addActionListener(new TestConnectionButtonListener());
pnl.add(buttonBox, gbc);
// Separator
setSeparatorConstraints(gbc, 9);
pnl.add(getSep(), gbc);
// Local update directory
setLabelConstraints(gbc, 10);
_localPathLabel = new JLabel(i18n.LOCAL_PATH, SwingConstants.RIGHT);
pnl.add(_localPathLabel, gbc);
setFieldConstraints(gbc, 10);
pnl.add(_localPath, gbc);
return pnl;
}
/**
* Sets the specified GridBagConstraints with the specified grid y coordinate and:<br>
* <br>
* grid x = 0 <br>
* grid width = 1 <br>
* weight x = 1 <br>
* insets = LABEL_INSETS <br>
* fill = GridBagConstraints.NONE <br>
* anchor = GridBagConstraints.EAST
*
* @param gbc
* the constraints to set
* @param gridy
* the grid y coordinate
*/
private void setLabelConstraints(GridBagConstraints gbc, int gridy)
{
gbc.gridx = 0;
gbc.gridy = gridy;
gbc.gridwidth = 1;
gbc.weightx = 0;
gbc.insets = LABEL_INSETS;
gbc.fill = GridBagConstraints.NONE;
gbc.anchor = GridBagConstraints.EAST;
}
/**
* Sets the specified GridBagConstraints with the specified grid y coordinate and:<br>
* <br>
* grid x = 1 <br>
* grid width = 1 <br>
* weight x = 1 <br>
* insets = FIELD_INSETS <br>
* fill = GridBagConstraints.HORIZONTAL <br>
* anchor = GridBagConstraints.WEST
*
* @param gbc
* the constraints to set
* @param gridy
* the grid y coordinate
*/
private void setFieldConstraints(GridBagConstraints gbc, int gridy)
{
gbc.gridx = 1;
gbc.gridy = gridy;
gbc.gridwidth = 1;
gbc.weightx = 1;
gbc.insets = FIELD_INSETS;
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.anchor = GridBagConstraints.WEST;
}
/**
* Sets the specified GridBagConstraints with the specified grid y coordinate and:<br>
* <br>
* grid x = 0 <br>
* grid width = 2 <br>
* weight x = 1 <br>
* insets = SEP_INSETS <br>
* fill = GridBagConstraints.HORIZONTAL <br>
* anchor = GridBagConstraints.WEST
*
* @param gbc
* the constraints to set
* @param gridy
* the grid y coordinate
*/
private void setSeparatorConstraints(GridBagConstraints gbc, int gridy)
{
gbc.gridx = 0;
gbc.gridy = gridy;
gbc.gridwidth = 2;
gbc.weightx = 1;
gbc.insets = SEP_INSETS;
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.anchor = GridBagConstraints.WEST;
}
private void enableRemoteSite()
{
_localPath.setEnabled(false);
_localPathLabel.setEnabled(false);
_updateServerChannel.setEnabled(true);
_updateServerName.setEnabled(true);
_updateServerPath.setEnabled(true);
_updateServerPort.setEnabled(true);
_serverLabel.setEnabled(true);
_portLabel.setEnabled(true);
_pathLabel.setEnabled(true);
_channelLabel.setEnabled(true);
_testConnectionButton.setEnabled(true);
_testConnectionStatusLabel.setEnabled(true);
_updateUrl.setEnabled(true);
_urlLabel.setEnabled(true);
}
private void enableLocalPath()
{
_localPath.setEnabled(true);
_localPathLabel.setEnabled(true);
_updateServerChannel.setEnabled(false);
_updateServerName.setEnabled(false);
_updateServerPath.setEnabled(false);
_updateServerPort.setEnabled(false);
_serverLabel.setEnabled(false);
_portLabel.setEnabled(false);
_pathLabel.setEnabled(false);
_channelLabel.setEnabled(false);
_testConnectionButton.setEnabled(false);
_testConnectionStatusLabel.setEnabled(false);
_updateUrl.setEnabled(false);
_urlLabel.setEnabled(false);
}
private void updateUrl()
{
String portStr = _updateServerPort.getText();
StringBuilder tmp = new StringBuilder("http://");
tmp.append(_updateServerName.getText());
if (!StringUtils.isEmpty(portStr))
{
tmp.append(":");
tmp.append(_updateServerPort.getText());
}
tmp.append("/");
tmp.append(_updateServerPath.getText());
tmp.append("/");
tmp.append(_updateServerChannel.getSelectedItem().toString());
tmp.append("/release.xml");
_updateUrl.setText(tmp.toString());
_updateUrl.setEditable(false);
_updateUrl.revalidate();
}
private JPanel getSiteTypePanel()
{
_remoteTypeButton.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
enableRemoteSite();
}
});
_localTypeButton.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
enableLocalPath();
}
});
_updateSiteTypeGroup.add(_remoteTypeButton);
_updateSiteTypeGroup.add(_localTypeButton);
JPanel siteTypePanel = new JPanel();
siteTypePanel.add(_remoteTypeButton);
siteTypePanel.add(_localTypeButton);
return siteTypePanel;
}
private JSeparator getSep()
{
JSeparator sep = new JSeparator(SwingConstants.HORIZONTAL);
// separators need preferred size in GridBagLayout
sep.setPreferredSize(new Dimension(100, 20));
sep.setMinimumSize(new Dimension(100, 20));
return sep;
}
private JPanel createAutoUpdatePanel()
{
JPanel pnl = new JPanel(new GridBagLayout());
pnl.setBorder(BorderFactory.createTitledBorder(i18n.AUTO_BORDER_LABEL));
final GridBagConstraints gbc = new GridBagConstraints();
gbc.anchor = GridBagConstraints.WEST;
gbc.insets = new Insets(4, 4, 4, 4);
gbc.gridx = 0;
gbc.gridy = 0;
gbc.gridwidth = 2;
gbc.fill = GridBagConstraints.HORIZONTAL;
pnl.add(_enableAutoUpdateChk, gbc);
gbc.gridwidth = 1;
gbc.gridx = 0;
gbc.gridy = 1;
gbc.weightx = 0;
gbc.insets = new Insets(4, 20, 4, 10);
pnl.add(new JLabel(i18n.AUTO_CHECK_FREQUENCY, JLabel.LEFT), gbc);
gbc.gridx = 1;
gbc.gridy = 1;
gbc.weightx = 1;
gbc.insets = new Insets(4, 0, 4, 0);
gbc.fill = GridBagConstraints.NONE;
pnl.add(this._updateCheckFrequency, gbc);
return pnl;
}
private final class MyActionHandler implements ActionListener
{
public void actionPerformed(ActionEvent evt)
{
updateControlStatus();
}
}
/**
* Sets the IApplication that is used to display error messages.
*
* @param app
* the IApplication implementation
*/
public void setApplication(IApplication app)
{
_app = app;
}
private class TestConnectionButtonListener implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
String serverName = _updateServerName.getText();
StringBuilder path = new StringBuilder(_updateServerPath.getText());
path.append("/");
path.append(_updateServerChannel.getSelectedItem().toString());
String portString = _updateServerPort.getText();
try
{
int port = 80;
if (!StringUtils.isEmpty(portString))
{
port = Integer.parseInt(_updateServerPort.getText());
}
_updateUtil.downloadCurrentRelease(serverName, port, path.toString(),
UpdateUtil.RELEASE_XML_FILENAME, _app.getSquirrelPreferences().getProxySettings());
_testConnectionStatusLabel.setText(i18n.STATUS_LABEL_SUCCESS_MSG);
_testConnectionStatusLabel.setForeground(CONNECTION_SUCCESS_COLOR);
}
catch (Exception e1)
{
_testConnectionStatusLabel.setText(i18n.STATUS_LABEL_FAILURE_MSG);
_testConnectionStatusLabel.setForeground(CONNECTION_FAILURE_COLOR);
_app.showErrorDialog(i18n.CONNECTION_FAILURE_DIALOG_MSG, e1);
}
}
}
/**
* A listener that will update the url whenever the associated document is modified
*
* @author manningr
*/
private class UrlDocumentListener implements DocumentListener
{
public void changedUpdate(DocumentEvent e)
{
updateUrl();
}
public void insertUpdate(DocumentEvent e)
{
updateUrl();
}
public void removeUpdate(DocumentEvent e)
{
updateUrl();
}
}
private class UrlItemListener implements ItemListener
{
public void itemStateChanged(ItemEvent e)
{
updateUrl();
}
}
}