If I use Mnemonics for my Controls, the action event of that control is still fired, when I use that mnemonic (keyboard input), although the control is disabled.

As a developer, if I disable my controls, I don't want the user to be able to use that control, no matter if by mouse or by keyboard. The action event should not fire on disabled controls.

Here is a sample (e.g. press ALT + T and see that output is still written).

This is probably an issue in javafx.scene.control.Labeled base class.


import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Menu;
import javafx.scene.control.MenuBar;
import javafx.scene.control.MenuItem;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

public class TestApp3 extends Application {


    public static void main(String[] args) throws Exception {
        launch();
    }

    public void start(final Stage stage) throws Exception {

        VBox root = new VBox();

        Button button = new Button("_Test");
        button.setOnAction(new EventHandler<ActionEvent>() {
            @Override
            public void handle(ActionEvent actionEvent) {
                System.out.println("Button action");
            }
        });
        button.setDisable(true);

        MenuBar menuBar = new MenuBar();

        Menu menu = new Menu("_Menu");

        MenuItem item = new MenuItem("_Item");
        item.setDisable(true);
        item.setOnAction(new EventHandler<ActionEvent>() {
            @Override
            public void handle(ActionEvent actionEvent) {
                System.out.println("Item activated");
            }
        });
        menu.getItems().add(item);

        menuBar.getMenus().add(menu);


        root.getChildren().add(menuBar);
        root.getChildren().add(button);

        Scene scene = new Scene(root);
        stage.setScene(scene);
        stage.show();
    }
}