Both ENTER shortcut and TextArea in Vaadin

Question

TextField f = new TextField();
Button b = new Button("Save");
b.setClickShortcut(KeyCode.ENTER); // For quick saving from text field itself

TextArea longText = new TextArea(); // "Enter" is garbled here

Hot to make the shortcut to work only in the from text field?

Morphogenesis

Answer 1

Use focus and blur listeners to remove and add the shortcut key:

    f.addFocusListener(new FocusListener() {
        @Override
        public void focus(FocusEvent event) {
            b.setClickShortcut(KeyCode.ENTER);
        }
    });
    f.addBlurListener(new BlurListener() {
        @Override
        public void blur(BlurEvent event) {
            b.removeClickShortcut();
        }
    });

Bucaramanga

Answer 2

Newer versions of Vaadin require the following code as addListener() is deprecated now.

    f.addFocusListener(new FocusListener() {

        private static final long serialVersionUID = -6733373447805994139L;

        @Override
        public void focus(FocusEvent event) {
            b.setClickShortcut(KeyCode.ENTER);
        }
    });

    f.addBlurListener(new BlurListener() {

        private static final long serialVersionUID = -3673311830300629513L;

        @Override
        public void blur(BlurEvent event) {
            b.removeClickShortcut();
        }
    });

Morganatic

Answer 3

Talking in terms of Vaadin 14, I was looking for the answer and for me, this worked well

  Button search = new Button("Search");
  search.addClickShortcut(Key.ENTER);

Debatable

Answer 4

As of Vaadin 23 (and probably for sometime before) the requirements have changed again.

private ShortcutRegistration primaryShortCut;

void customShortCutHandling()
    {
        myTextAreaField.addFocusListener((e) ->
            {
                System.out.println("disable");
                primaryShortCut = primaryButton.addClickShortcut(Key.ENTER);
            });

        myTextAreaField.addBlurListener((e) ->
            {
                System.out.println("enable");
                primaryShortCut.remove();
            });
    }
}

This code assumes that primaryShortCut was set when the form is created.

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