java - javafx.scene.control.Dialog<R> won't close on pressing "x"

Question

If I just create an empty class extending from javafx.scene.control.Dialog<R>, it won't close when I'm pressing the "x" button in the top right corner.

How do I implement this behaviour? The API seems to tell me that I need to implement a close button. But in my case I don't want a close button, I just want to close the window with the x button or by pressing ESC. Is this possible?

Answer 1

The workaround from @eckig or @jewelsea works pretty fine. But I would use something like this:

// Somewhere in code
Dialog<?> dialog = new Dialog<>();
Window    window = dialog.getDialogPane().getScene().getWindow();
window.setOnCloseRequest(event -> window.hide());

I do not know any constrains of this use, but it worked for me. And I recommend initialize window right after dialog initialization, like above.