Block owner window Java FX

Question

I would like to block the owner window for a popup in JavaFX.

I initialize my popup like this:

popUp = new Popup();
popUp.getContent().add(content);
         


        

Answer 1

Use a Stage instead of a Popup.

Before showing the stage, invoke stage.initModality as either APPLICATION_MODAL or WINDOW_MODAL, as appropriate. Also invoke stage.initOwner to the parent window of your new stage so that it will appropriately block it for the WINDOW_MODAL case.

Stage stage = new Stage();
stage.initModality(Modality.WINDOW_MODAL);
stage.initOwner(pane.getScene().getWindow());
stage.setScene(new Scene(content));
stage.show();