How to change contextMenu default mouse button?

Question

I have a contextMenu and I added it to a button. I want the contextMenu to be displayed when I left-click(PRIMARY) on the button. How can I do this? Because by default just right-clicking does this.

I tried this way but it did not work

Button sortBy = new Button();

ContextMenu sortByMenu = new ContextMenu();
    sortByMenu.addEventFilter(MouseEvent.MOUSE_PRESSED, ev -> {
        if (ev.getButton() == MouseButton.PRIMARY) {
            //does not do anything
        }
    });

 sortBy.setContextMenu(sortByMenu);

Answer 1

MenuButton

MenuButton is a button which, when clicked or pressed, will show a ContextMenu.

Example code from the javadoc:

MenuButton m = new MenuButton(
    "Eats"
);
m.getItems().addAll(
    new MenuItem("Burger"),
    new MenuItem("Hot Dog")
);

ChoiceBox

You could also consider a ChoiceBox, depending on what you are trying to do.

The ChoiceBox is used for presenting the user with a relatively small set of predefined choices from which they may choose.

ChoiceBox<String> cb = new ChoiceBox<>();
cb.getItems().addAll(
    "item1",
    "item2",
    "item3"
);

To select a sortBy sorting field from a list of choices, a ChoiceBox would probably be a good fit.