Beispiel #1
0
  private void createSSLGroup(Composite container) {
    final Group group = new Group(container, SWT.NONE);
    group.setText(Messages.OPT_TAB_GROUP_SSL);
    FormLayout layout = new FormLayout();
    layout.marginBottom = 10;
    group.setLayout(layout);
    group.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

    // 1)
    // **********************************************
    // Row: Keystore - Location
    // **********************************************
    // Keystore Location - Label
    Label keystoreLabel = new Label(group, SWT.NONE);
    FormData fd = new FormData();
    fd.top = new FormAttachment(0, 10);
    fd.left = new FormAttachment(0, 10);
    keystoreLabel.setLayoutData(fd);
    keystoreLabel.setText(Messages.OPT_TAB_GROUP_SSL_KEY_STORE);

    // Keystore Location - Directory - Text
    final Text keystoreDirText = new Text(group, SWT.BORDER);
    keystoreDirText.setEditable(false);
    fd = new FormData();
    fd.top = new FormAttachment(keystoreLabel, 0, SWT.CENTER);
    // fd.left = new FormAttachment(keystoreLabel, 30);
    fd.left = new FormAttachment(0, 160);
    fd.width = 454;
    keystoreDirText.setLayoutData(fd);

    // Keystore Location- Browse - Button
    final Button keystoreBrowseButton = new Button(group, SWT.PUSH);
    keystoreBrowseButton.setText(Messages.LABEL_BROWSE);
    fd = new FormData();
    fd.top = new FormAttachment(keystoreDirText, 0, SWT.CENTER);
    fd.left = new FormAttachment(keystoreDirText, 10);
    keystoreBrowseButton.setLayoutData(fd);
    keystoreBrowseButton.addSelectionListener(
        new SelectionAdapter() {
          @Override
          public void widgetSelected(SelectionEvent e) {
            Display.getDefault()
                .asyncExec(
                    new Runnable() {
                      @Override
                      public void run() {
                        FileDialog fileDialog = new FileDialog(getControl().getShell());
                        fileDialog.setText(Messages.OPT_TAB_GROUP_SSL_KEY_STORE_DLG);
                        fileDialog.setFilterExtensions(KEYSTORE_FILE_EXT);
                        String selectedFile = fileDialog.open();
                        if (selectedFile != null) {
                          keystoreDirText.setText(selectedFile);
                        }
                      }
                    });
          }
        });

    // **********************************************
    // Row: Keystore - Password
    // **********************************************
    // Keystore - Password - Label
    Label keystorePwdLabel = new Label(group, SWT.NONE);
    fd = new FormData();
    fd.top = new FormAttachment(keystoreLabel, 10);
    fd.left = new FormAttachment(0, 10);
    keystorePwdLabel.setLayoutData(fd);
    keystorePwdLabel.setText(Messages.OPT_TAB_GROUP_SSL_KEY_STORE_PWD);

    // Keystore - Password - Text
    final Text keystorePwdText = new Text(group, SWT.BORDER | SWT.PASSWORD);
    fd = new FormData();
    fd.top = new FormAttachment(keystorePwdLabel, 0, SWT.CENTER);
    fd.left = new FormAttachment(keystoreDirText, 0, SWT.LEFT);
    fd.right = new FormAttachment(keystoreDirText, 0, SWT.RIGHT);
    keystorePwdText.setLayoutData(fd);

    // 2)
    // **********************************************
    // Row: Truststore - Location
    // **********************************************
    // Truststore Location - Label
    Label truststoreLabel = new Label(group, SWT.NONE);
    fd = new FormData();
    fd.top = new FormAttachment(keystorePwdLabel, 10);
    fd.left = new FormAttachment(0, 10);
    truststoreLabel.setLayoutData(fd);
    truststoreLabel.setText(Messages.OPT_TAB_GROUP_SSL_TRUST_STORE);

    // Truststore Location - Directory - Text
    final Text truststoreDirText = new Text(group, SWT.BORDER);
    truststoreDirText.setEditable(false);
    fd = new FormData();
    fd.top = new FormAttachment(truststoreLabel, 0, SWT.CENTER);
    fd.left = new FormAttachment(keystoreDirText, 0, SWT.LEFT);
    fd.right = new FormAttachment(keystoreDirText, 0, SWT.RIGHT);
    truststoreDirText.setLayoutData(fd);

    // Truststore Location- Browse - Button
    final Button truststoreBrowseButton = new Button(group, SWT.PUSH);
    truststoreBrowseButton.setText(Messages.LABEL_BROWSE);
    fd = new FormData();
    fd.top = new FormAttachment(truststoreDirText, 0, SWT.CENTER);
    fd.left = new FormAttachment(truststoreDirText, 10);
    truststoreBrowseButton.setLayoutData(fd);
    truststoreBrowseButton.addSelectionListener(
        new SelectionAdapter() {
          @Override
          public void widgetSelected(SelectionEvent e) {
            Display.getDefault()
                .asyncExec(
                    new Runnable() {
                      @Override
                      public void run() {
                        FileDialog fileDialog = new FileDialog(getControl().getShell());
                        fileDialog.setText(Messages.OPT_TAB_GROUP_SSL_TRUST_STORE_DLG);
                        fileDialog.setFilterExtensions(KEYSTORE_FILE_EXT);
                        String selectedFile = fileDialog.open();
                        if (selectedFile != null) {
                          truststoreDirText.setText(selectedFile);
                        }
                      }
                    });
          }
        });

    // **********************************************
    // Row: Truststore - Password
    // **********************************************
    // Truststore - Password - Label
    Label truststorePwdLabel = new Label(group, SWT.NONE);
    fd = new FormData();
    fd.top = new FormAttachment(truststoreLabel, 10);
    fd.left = new FormAttachment(0, 10);
    truststorePwdLabel.setLayoutData(fd);
    truststorePwdLabel.setText(Messages.OPT_TAB_GROUP_SSL_TRUST_STORE_PWD);

    // Truststore - Password - Text
    final Text truststorePwdText = new Text(group, SWT.BORDER | SWT.PASSWORD);
    fd = new FormData();
    fd.top = new FormAttachment(truststorePwdLabel, 0, SWT.CENTER);
    fd.left = new FormAttachment(keystoreDirText, 0, SWT.LEFT);
    fd.right = new FormAttachment(keystoreDirText, 0, SWT.RIGHT);
    truststorePwdText.setLayoutData(fd);

    // **********************************************
    // DataBinding
    // **********************************************
    final DataBinding dataBinding = DataBindings.createDataBinding();
    // SSL view updater
    sslViewUpdater =
        new ViewUpdater<Boolean>() {
          final DecoratedBinding keystoreBinding;
          final DecoratedBinding truststoreBinding;

          {
            // key store
            keystoreBinding =
                dataBinding
                    .bindText(
                        keystoreDirText,
                        connection,
                        Connection.PROP_OPT_SSL_KS,
                        Validators.required)
                    .hideDecorations();

            // PWD is not required, no decoration is required
            dataBinding.bindText(
                keystorePwdText,
                connection,
                Connection.PROP_OPT_SSL_KSPWD,
                Converters.stringToChars);

            // trust store
            truststoreBinding =
                dataBinding
                    .bindText(
                        truststoreDirText,
                        connection,
                        Connection.PROP_OPT_SSL_TS,
                        Validators.required)
                    .hideDecorations();

            // PWD is not required, no decoration is required
            dataBinding.bindText(
                truststorePwdText,
                connection,
                Connection.PROP_OPT_SSL_TSPWD,
                Converters.stringToChars);
          }

          @Override
          public void update(Boolean selected) {
            Widgets.enable(group, selected);
            if (selected) {
              keystoreBinding.showDecorations();
              truststoreBinding.showDecorations();
            } else {
              keystoreBinding.hideDecorations();
              truststoreBinding.hideDecorations();
            }
          }
        };

    // dispose dataBinding when UI is disposed
    addDisposeListener(dataBinding);

    // disable all when creation
    Widgets.enable(group, connection.getOptions().isSslEnabled());
  }
Beispiel #2
0
  private void createGeneralGroup(Composite container) {
    final Group group = new Group(container, SWT.NONE);
    group.setText(Messages.OPT_TAB_GROUP_GENERAL);
    FormLayout layout = new FormLayout();
    layout.marginBottom = 10;
    group.setLayout(layout);
    group.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

    // **********************************************
    // Row: CleanSession
    // **********************************************
    // CleanSession - Label
    Label cleanSessionLabel = new Label(group, SWT.NONE);
    FormData fd = new FormData();
    fd.top = new FormAttachment(0, 10);
    fd.left = new FormAttachment(0, 10);
    cleanSessionLabel.setLayoutData(fd);
    cleanSessionLabel.setText(Messages.OPT_TAB_GROUP_GENERAL_CLEAN_SESSION);

    // CleanSession - Check
    final Button cleanSessionCheck = new Button(group, SWT.CHECK);
    fd = new FormData();
    fd.top = new FormAttachment(cleanSessionLabel, 0, SWT.CENTER);
    // fd.left = new FormAttachment(cleanSessionLabel, 60);
    fd.left = new FormAttachment(0, 160);
    cleanSessionCheck.setLayoutData(fd);

    // **********************************************
    // Row: SSL
    // **********************************************
    // SSL - Label
    Label sslLabel = new Label(group, SWT.NONE);
    fd = new FormData();
    fd.top = new FormAttachment(cleanSessionLabel, 10);
    fd.left = new FormAttachment(0, 10);
    sslLabel.setLayoutData(fd);
    sslLabel.setText(Messages.OPT_TAB_GROUP_GENERAL_ENABLE_SSL);

    // SSL - Check
    final Button sslCheck = new Button(group, SWT.CHECK);
    fd = new FormData();
    fd.top = new FormAttachment(sslLabel, 0, SWT.CENTER);
    fd.left = new FormAttachment(cleanSessionCheck, 0, SWT.LEFT);
    sslCheck.setLayoutData(fd);
    sslCheck.addSelectionListener(
        new SelectionAdapter() {
          @Override
          public void widgetSelected(SelectionEvent e) {
            Display.getDefault()
                .asyncExec(
                    new Runnable() {
                      @Override
                      public void run() {
                        sslViewUpdater.update(sslCheck.getSelection());
                      }
                    });
          }
        });

    // **********************************************
    // Row: HA
    // **********************************************
    // HA - Label
    Label haLabel = new Label(group, SWT.NONE);
    fd = new FormData();
    fd.top = new FormAttachment(sslLabel, 10);
    fd.left = new FormAttachment(0, 10);
    haLabel.setLayoutData(fd);
    haLabel.setText(Messages.OPT_TAB_GROUP_GENERAL_ENABLE_HA);

    // HA - Check
    final Button haCheck = new Button(group, SWT.CHECK);
    fd = new FormData();
    fd.top = new FormAttachment(haLabel, 0, SWT.CENTER);
    fd.left = new FormAttachment(cleanSessionCheck, 0, SWT.LEFT);
    haCheck.setLayoutData(fd);
    haCheck.addSelectionListener(
        new SelectionAdapter() {
          @Override
          public void widgetSelected(SelectionEvent e) {
            Display.getDefault()
                .asyncExec(
                    new Runnable() {
                      @Override
                      public void run() {
                        haViewUpdater.update(haCheck.getSelection());
                      }
                    });
          }
        });

    // **********************************************
    // Row: LWT
    // **********************************************
    // LWT - Label
    Label lwtLabel = new Label(group, SWT.NONE);
    fd = new FormData();
    fd.top = new FormAttachment(haLabel, 10);
    fd.left = new FormAttachment(0, 10);
    lwtLabel.setLayoutData(fd);
    lwtLabel.setText(Messages.OPT_TAB_GROUP_GENERAL_ENABLE_LWT);

    // LWT - Check
    final Button lwtCheck = new Button(group, SWT.CHECK);
    fd = new FormData();
    fd.top = new FormAttachment(lwtLabel, 0, SWT.CENTER);
    fd.left = new FormAttachment(cleanSessionCheck, 0, SWT.LEFT);
    lwtCheck.setLayoutData(fd);
    lwtCheck.addSelectionListener(
        new SelectionAdapter() {
          @Override
          public void widgetSelected(SelectionEvent e) {
            Display.getDefault()
                .asyncExec(
                    new Runnable() {
                      @Override
                      public void run() {
                        lwtViewUpdater.update(lwtCheck.getSelection());
                      }
                    });
          }
        });

    // **********************************************
    // Row: Keep Alive Interval
    // **********************************************
    // Keep Alive - Label
    Label keepAliveLabel = new Label(group, SWT.NONE);
    fd = new FormData();
    fd.top = new FormAttachment(lwtLabel, 10);
    fd.left = new FormAttachment(0, 10);
    keepAliveLabel.setLayoutData(fd);
    keepAliveLabel.setText(Messages.OPT_TAB_GROUP_GENERAL_KEEP_ALIVE);

    // Keep Alive - Spinner
    final Spinner keepAliveSpinner = new Spinner(group, SWT.BORDER);
    keepAliveSpinner.setMinimum(0);
    keepAliveSpinner.setMaximum(Integer.MAX_VALUE);
    keepAliveSpinner.setIncrement(5);
    keepAliveSpinner.setPageIncrement(30);
    trackSpinnerUpdates(keepAliveSpinner);

    fd = new FormData();
    fd.top = new FormAttachment(keepAliveLabel, 0, SWT.CENTER);
    fd.left = new FormAttachment(cleanSessionCheck, 0, SWT.LEFT);
    keepAliveSpinner.setLayoutData(fd);

    // Keep Alive Unit - Label
    Label keepAliveUnitLabel = new Label(group, SWT.NONE);
    fd = new FormData();
    fd.top = new FormAttachment(keepAliveLabel, 0, SWT.CENTER);
    fd.left = new FormAttachment(keepAliveSpinner, 10);
    keepAliveUnitLabel.setLayoutData(fd);
    keepAliveUnitLabel.setText(Messages.LABEL_SECONDS);

    // **********************************************
    // Row: Connection Timeout
    // **********************************************
    // Connection Timeout - Label
    Label connectionTimeoutLabel = new Label(group, SWT.NONE);
    fd = new FormData();
    fd.top = new FormAttachment(keepAliveLabel, 10);
    fd.left = new FormAttachment(0, 10);
    connectionTimeoutLabel.setLayoutData(fd);
    connectionTimeoutLabel.setText(Messages.OPT_TAB_GROUP_GENERAL_CONNECTION_TIMEOUT);

    // Connection Timeout - Spinner
    final Spinner connectionTimeoutSpinner = new Spinner(group, SWT.BORDER);
    connectionTimeoutSpinner.setMinimum(0);
    connectionTimeoutSpinner.setMaximum(Integer.MAX_VALUE);
    connectionTimeoutSpinner.setIncrement(5);
    connectionTimeoutSpinner.setPageIncrement(30);
    trackSpinnerUpdates(connectionTimeoutSpinner);

    fd = new FormData();
    fd.top = new FormAttachment(connectionTimeoutLabel, 0, SWT.CENTER);
    fd.left = new FormAttachment(cleanSessionCheck, 0, SWT.LEFT);
    connectionTimeoutSpinner.setLayoutData(fd);

    // Connection Timeout Unit - Label
    Label connectionTimeoutUnitLabel = new Label(group, SWT.NONE);
    fd = new FormData();
    fd.top = new FormAttachment(connectionTimeoutLabel, 0, SWT.CENTER);
    fd.left = new FormAttachment(connectionTimeoutSpinner, 10);
    connectionTimeoutUnitLabel.setLayoutData(fd);
    connectionTimeoutUnitLabel.setText(Messages.LABEL_SECONDS);

    // **********************************************
    // Row: Use Login
    // **********************************************
    // Use Login - Label
    Label loginLabel = new Label(group, SWT.NONE);
    fd = new FormData();
    fd.top = new FormAttachment(connectionTimeoutLabel, 10);
    fd.left = new FormAttachment(0, 10);
    loginLabel.setLayoutData(fd);
    loginLabel.setText(Messages.OPT_TAB_GROUP_GENERAL_ENABLE_LOGIN);

    // Use Login - Check
    final Button loginCheck = new Button(group, SWT.CHECK);
    fd = new FormData();
    fd.top = new FormAttachment(loginLabel, 0, SWT.CENTER);
    fd.left = new FormAttachment(cleanSessionCheck, 0, SWT.LEFT);
    loginCheck.setLayoutData(fd);
    loginCheck.addSelectionListener(
        new SelectionAdapter() {
          @Override
          public void widgetSelected(SelectionEvent e) {
            Display.getDefault()
                .asyncExec(
                    new Runnable() {
                      @Override
                      public void run() {
                        loginViewUpdater.update(loginCheck.getSelection());
                      }
                    });
          }
        });

    // Use Login - Username - Label
    Label usernameLabel = new Label(group, SWT.NONE);
    fd = new FormData();
    fd.top = new FormAttachment(loginLabel, 0, SWT.CENTER);
    fd.left = new FormAttachment(connectionTimeoutUnitLabel, 0, SWT.LEFT);
    usernameLabel.setLayoutData(fd);
    usernameLabel.setText(Messages.OPT_TAB_GROUP_GENERAL_USERNAME);

    // Use Login - Username - Text
    final Text usernameText = new Text(group, SWT.BORDER);
    fd = new FormData();
    fd.top = new FormAttachment(usernameLabel, 0, SWT.CENTER);
    fd.left = new FormAttachment(usernameLabel, 10);
    fd.width = 120;
    usernameText.setLayoutData(fd);

    // Use Login - Password - Label
    Label passwordLabel = new Label(group, SWT.NONE);
    fd = new FormData();
    fd.top = new FormAttachment(loginLabel, 0, SWT.CENTER);
    fd.left = new FormAttachment(usernameText, 20);
    passwordLabel.setLayoutData(fd);
    passwordLabel.setText(Messages.OPT_TAB_GROUP_GENERAL_PASSWORD);

    // Use Login - Password - Text
    final Text passwordText = new Text(group, SWT.BORDER | SWT.PASSWORD);
    fd = new FormData();
    fd.top = new FormAttachment(passwordLabel, 0, SWT.CENTER);
    fd.left = new FormAttachment(passwordLabel, 10);
    fd.width = 120;
    passwordText.setLayoutData(fd);

    // **********************************************
    // Row: Use Persistence
    // **********************************************
    // Use Persistence - Label
    Label persistLabel = new Label(group, SWT.NONE);
    fd = new FormData();
    fd.top = new FormAttachment(loginLabel, 10);
    fd.left = new FormAttachment(0, 10);
    persistLabel.setLayoutData(fd);
    persistLabel.setText(Messages.OPT_TAB_GROUP_GENERAL_ENABLE_PERSISTENCE);

    // Use Persistence - Check
    final Button persistCheck = new Button(group, SWT.CHECK);
    fd = new FormData();
    fd.top = new FormAttachment(persistLabel, 0, SWT.CENTER);
    fd.left = new FormAttachment(cleanSessionCheck, 0, SWT.LEFT);
    persistCheck.setLayoutData(fd);
    persistCheck.addSelectionListener(
        new SelectionAdapter() {
          @Override
          public void widgetSelected(SelectionEvent e) {
            Display.getDefault()
                .asyncExec(
                    new Runnable() {
                      @Override
                      public void run() {
                        persistenceViewUpdater.update(persistCheck.getSelection());
                      }
                    });
          }
        });

    // Use Persistence - Directory - Label
    Label directoryLabel = new Label(group, SWT.NONE);
    fd = new FormData();
    fd.top = new FormAttachment(persistLabel, 0, SWT.CENTER);
    fd.left = new FormAttachment(connectionTimeoutUnitLabel, 0, SWT.LEFT);
    directoryLabel.setLayoutData(fd);
    directoryLabel.setText(Messages.OPT_TAB_GROUP_GENERAL_PERSISTENCE_DIRECTORY);

    // Use Persistence - Directory - Text
    final Text directoryText = new Text(group, SWT.BORDER);
    directoryText.setEditable(false);
    fd = new FormData();
    fd.top = new FormAttachment(directoryLabel, 0, SWT.CENTER);
    fd.left = new FormAttachment(usernameText, 0, SWT.LEFT);
    fd.right = new FormAttachment(passwordText, 0, SWT.RIGHT);
    directoryText.setLayoutData(fd);

    // Use Persistence - Browse - Button
    final Button browseDirButton = new Button(group, SWT.PUSH);
    browseDirButton.setText(Messages.LABEL_BROWSE);
    fd = new FormData();
    fd.top = new FormAttachment(directoryText, 0, SWT.CENTER);
    fd.left = new FormAttachment(directoryText, 10);
    browseDirButton.setLayoutData(fd);
    browseDirButton.setEnabled(connection.getOptions().isPersistenceEnabled());
    browseDirButton.addSelectionListener(
        new SelectionAdapter() {
          @Override
          public void widgetSelected(SelectionEvent e) {
            Display.getDefault()
                .asyncExec(
                    new Runnable() {
                      @Override
                      public void run() {
                        DirectoryDialog directoryDialog =
                            new DirectoryDialog(getControl().getShell());
                        directoryDialog.setMessage(Messages.OPT_TAB_GROUP_GENERAL_PERSISTENCE_DLG);
                        String dir = directoryDialog.open();
                        if (dir != null) {
                          directoryText.setText(dir);
                        }
                      }
                    });
          }
        });

    // **********************************************
    // DataBinding
    // **********************************************
    final DataBinding dataBinding = DataBindings.createDataBinding();

    // updater
    loginViewUpdater =
        new ViewUpdater<Boolean>() {
          final DecoratedBinding usrBinding;
          final DecoratedBinding pwdBinding;

          {
            // username is required
            usrBinding =
                dataBinding
                    .bindText(
                        usernameText,
                        connection,
                        Connection.PROP_OPT_LOGIN_USERNAME,
                        Validators.required)
                    .hideDecorations();

            // password is not required
            pwdBinding =
                dataBinding
                    .bindText(
                        passwordText,
                        connection,
                        Connection.PROP_OPT_LOGIN_PASSWORD,
                        Converters.stringToChars)
                    .hideDecorations();
          }

          @Override
          public void update(Boolean selected) {
            if (selected) {
              usrBinding.showDecorations();
              pwdBinding.showDecorations();
              Widgets.enable(true, usernameText, passwordText);
            } else {
              usrBinding.hideDecorations();
              pwdBinding.hideDecorations();
              Widgets.enable(false, usernameText, passwordText);
            }
          }
        };

    // Persistence view updater
    persistenceViewUpdater =
        new ViewUpdater<Boolean>() {
          final DecoratedBinding binding;

          {
            binding =
                dataBinding
                    .bindText(
                        directoryText,
                        connection,
                        Connection.PROP_OPT_PERSISTENCE_DIRECTORY,
                        Validators.required)
                    .hideDecorations();
            directoryText.setText(System.getProperty("user.dir")); // $NON-NLS-1$
          }

          @Override
          public void update(Boolean selected) {
            browseDirButton.setEnabled(selected);
            if (selected) {
              binding.showDecorations();
            } else {
              binding.hideDecorations();
            }
          }
        };

    // checkbox
    dataBinding.bindSelection(cleanSessionCheck, connection, Connection.PROP_OPT_CLEAN_SESSION);
    dataBinding.bindSelection(sslCheck, connection, Connection.PROP_OPT_SSL_ENABLED);
    dataBinding.bindSelection(haCheck, connection, Connection.PROP_OPT_HA_ENABLED);
    dataBinding.bindSelection(lwtCheck, connection, Connection.PROP_OPT_LWT_ENABLED);
    dataBinding.bindSelection(loginCheck, connection, Connection.PROP_OPT_LOGIN_ENABLED);
    dataBinding.bindSelection(persistCheck, connection, Connection.PROP_OPT_PERSISTENCE_ENABLED);

    // spinner
    dataBinding.bindSelection(
        keepAliveSpinner, connection, Connection.PROP_OPT_KEEP_ALIVE_INTERVAL);
    dataBinding.bindSelection(
        connectionTimeoutSpinner, connection, Connection.PROP_OPT_CONNECTION_TIMEOUT);

    // dispose dataBinding when UI is disposed
    addDisposeListener(dataBinding);

    // initial state
    Widgets.enable(connection.getOptions().isLoginEnabled(), usernameText, passwordText);
  }
Beispiel #3
0
  private void createLWTGroup(Composite container) {
    // data model
    final LWT lwt = connection.getOptions().getLwt();

    final Group group = new Group(container, SWT.NONE);
    group.setText(Messages.OPT_TAB_GROUP_LWT);

    // layout
    FormLayout layout = new FormLayout();
    layout.marginBottom = 10;
    group.setLayout(layout);
    GridData gd = new GridData(GridData.FILL_HORIZONTAL);
    group.setLayoutData(gd);

    // **********************************************
    // Row: Topic + QoS + Retain
    // **********************************************
    // Topic - label
    Label topicLabel = new Label(group, SWT.NONE);
    FormData fd = new FormData();
    fd.top = new FormAttachment(0, 10);
    fd.left = new FormAttachment(0, 10);
    topicLabel.setLayoutData(fd);
    topicLabel.setText(Messages.OPT_TAB_GROUP_LWT_TOPIC);

    // Topic - input
    final Text topicText = new Text(group, SWT.BORDER);
    fd = new FormData();
    fd.top = new FormAttachment(topicLabel, 10, SWT.CENTER);
    fd.left = new FormAttachment(topicLabel, 40);
    fd.right = new FormAttachment(100, -4);
    topicText.setLayoutData(fd);

    // QoS - label
    Label qosLabel = new Label(group, SWT.NONE);
    fd = new FormData();
    fd.top = new FormAttachment(topicLabel, 10);
    fd.left = new FormAttachment(0, 10);
    qosLabel.setLayoutData(fd);
    qosLabel.setText(Messages.OPT_TAB_GROUP_LWT_QOS);

    // QoS - selection
    CCombo combo = new CCombo(group, SWT.BORDER);
    List<String> qosList = new ArrayList<String>();
    for (QoS qos : QoS.values()) {
      qosList.add(qos.getLabel());
    }
    combo.setItems(qosList.toArray(new String[0]));
    combo.setEditable(false);
    combo.addSelectionListener(
        new SelectionAdapter() {
          public void widgetSelected(final SelectionEvent e) {
            Display.getDefault()
                .asyncExec(
                    new Runnable() {
                      @Override
                      public void run() {
                        // Note: need manually set (because NOT using databinding for combo)
                        CCombo combo = (CCombo) e.widget;
                        lwt.setQos(QoS.valueOf(combo.getSelectionIndex()));
                      }
                    });
          }
        });

    // Note: need manually set (because NOT using databinding for combo)
    combo.select(lwt.getQos().getValue());
    fd = new FormData();
    fd.top = new FormAttachment(qosLabel, 0, SWT.CENTER);
    fd.left = new FormAttachment(topicText, 0, SWT.LEFT);
    combo.setLayoutData(fd);

    // Retained
    Button retained = new Button(group, SWT.CHECK);
    retained.setText(Messages.OPT_TAB_GROUP_LWT_RETAINED);
    fd = new FormData();
    fd.top = new FormAttachment(qosLabel, 0, SWT.CENTER);
    fd.left = new FormAttachment(combo, 10);
    retained.setLayoutData(fd);

    // Hex
    final Button hex = new Button(group, SWT.CHECK);
    hex.setText(Messages.OPT_TAB_GROUP_LWT_HEX);
    fd = new FormData();
    fd.top = new FormAttachment(qosLabel, 0, SWT.CENTER);
    fd.right = new FormAttachment(100, -4);
    hex.setLayoutData(fd);

    // **********************************************
    // Row: Message - label
    // **********************************************
    // Topic - label
    Label messageLabel = new Label(group, SWT.NONE);
    fd = new FormData();
    fd.top = new FormAttachment(topicLabel, 60);
    fd.left = new FormAttachment(0, 10);
    messageLabel.setLayoutData(fd);
    messageLabel.setText(Messages.OPT_TAB_GROUP_LWT_MSG);

    // Message - input
    final Text messageText = new Text(group, SWT.MULTI | SWT.BORDER | SWT.WRAP | SWT.V_SCROLL);
    fd = new FormData();
    fd.top = new FormAttachment(messageLabel, 10, SWT.CENTER);
    fd.left = new FormAttachment(topicText, 0, SWT.LEFT);
    fd.right = new FormAttachment(topicText, 0, SWT.RIGHT);
    // fd.width = 300;
    fd.height = 60;
    messageText.setLayoutData(fd);

    // XXX handle input when in HEX mode
    hex.addSelectionListener(
        new SelectionAdapter() {
          public void widgetSelected(final SelectionEvent e) {
            Display.getDefault()
                .asyncExec(
                    new Runnable() {
                      @Override
                      public void run() {
                        Button button = (Button) e.widget;
                        if (button.getSelection()) {
                          messageText.setText(Strings.toHex(messageText.getText()));
                          messageText.setEditable(false);
                        } else {
                          messageText.setText(Strings.hexToString(messageText.getText()));
                          messageText.setEditable(true);
                        }
                      }
                    });
          }
        });

    // **********************************************
    // DataBinding
    // **********************************************
    final DataBinding dataBinding = DataBindings.createDataBinding();
    dataBinding.bindTextAsBytes(messageText, connection, Connection.PROP_OPT_LWT_PAYLOAD);
    dataBinding.bindSelection(retained, connection, Connection.PROP_OPT_LWT_RETAIN);

    // LWT view updater
    lwtViewUpdater =
        new ViewUpdater<Boolean>() {
          final DecoratedBinding binding;

          {
            binding =
                dataBinding
                    .bindText(
                        topicText,
                        connection,
                        Connection.PROP_OPT_LWT_TOPIC,
                        Validators.publishTopic)
                    .hideDecorations();
          }

          @Override
          public void update(Boolean selected) {
            Widgets.enable(group, selected);
            if (selected) {
              binding.showDecorations();
            } else {
              binding.hideDecorations();
            }
          }
        };
    // dispose dataBinding when UI is disposed
    addDisposeListener(dataBinding);

    // initial state
    Widgets.enable(group, connection.getOptions().isLwtEnabled());
  }