private String showCreateOrRenameDialog(
final String title,
final String headerText,
final File parent,
final String name,
final NameVerifier nameVerifier) {
final Alert alert = new Alert(AlertType.CONFIRMATION);
alert.setTitle(title);
alert.setHeaderText(headerText);
final GridPane contentContainer = new GridPane();
contentContainer.setPadding(new Insets(8));
contentContainer.setHgap(8);
contentContainer.setVgap(8);
contentContainer.add(new Label("Parent:"), 0, 0);
final TextField parentTextField = new TextField();
parentTextField.setEditable(false);
parentTextField.setText(parent.getAbsolutePath());
contentContainer.add(parentTextField, 1, 0);
contentContainer.add(new Label("Name:"), 0, 1);
final TextField dirNameTextField = new TextField();
dirNameTextField.setText(name);
GridPane.setHgrow(dirNameTextField, Priority.ALWAYS);
contentContainer.add(dirNameTextField, 1, 1);
final InvalidationListener updateDisableInvalidationListener =
(observable) -> {
final String dirName = dirNameTextField.getText();
final Node okButton = alert.getDialogPane().lookupButton(ButtonType.OK);
if (isEmpty(dirName)) okButton.setDisable(true);
else {
final boolean nameAcceptable = nameVerifier.isNameAcceptable(dirName);
okButton.setDisable(!nameAcceptable);
}
};
dirNameTextField.textProperty().addListener(updateDisableInvalidationListener);
alert.getDialogPane().setContent(contentContainer);
alert.setOnShowing(
(event) -> {
dirNameTextField.requestFocus();
dirNameTextField.selectAll();
updateDisableInvalidationListener.invalidated(null);
});
if (alert.showAndWait().get() == ButtonType.OK) return dirNameTextField.getText();
else return null;
}
