Question

How can I create my own CSS pseudo classes in Java FX 2?

So that in CSS file I could use this style

.MyButton : online{ }

In FX 1 it could be done overriding methods like

 public long impl_getPseudoClassState() {}

but they are now deprecated 🙁

Is there a new way?

Answer 1

Currently you can’t do it. Here is what is stated in JavaFX CSS Reference Guide about this:

At this time, the programming interfaces necessary for a class to
declare support for CSS properties, to convert and load these values
from CSS style sheets into object variables, and to declare and notify
changes to an object’s pseudo-classes, are considered internal
interfaces and are not accessible directly to applications.