@Override
  protected JComponent createCenterPanel() {
    JPanel panel = new JPanel(new VerticalFlowLayout());

    JLabel nameLabel = new JLabel();
    panel.add(nameLabel);

    myNameField = new JTextField();
    nameLabel.setLabelFor(myNameField);
    myNameField.getDocument().addDocumentListener(new DocumentAdapter() {
      @Override
      protected void textChanged(@NotNull DocumentEvent e) {
        validateOKButton();
      }
    });
    panel.add(myNameField);
    nameLabel.setText(getNameLabel());

    myTargetDirLabel = new JLabel();
    panel.add(myTargetDirLabel);

    myTargetDirectoryField = new TextFieldWithBrowseButton();
    myTargetDirectoryField.setText(myCurrentDirectory.getVirtualFile().getPresentableUrl());
    myTargetDirectoryField.addBrowseFolderListener(RefactoringBundle.message("select.target.directory"),
                                                   RefactoringBundle.message("select.target.directory.description"),
                                                   null, FileChooserDescriptorFactory.createSingleFolderDescriptor());

    myTargetDirLabel.setText(RefactoringBundle.message("extract.to.directory"));
    panel.add(myTargetDirectoryField);

    myTargetDirectoryField.getTextField().getDocument().addDocumentListener(new DocumentAdapter() {
      @Override
      public void textChanged(@NotNull DocumentEvent event) {
        validateOKButton();
      }
    });

    validateOKButton();

    return panel;
  }
@Override
  protected JComponent createCenterPanel()