On Tue, 10 Jun 2025 03:21:53 GMT, Michael Strauß <mstra...@openjdk.org> wrote:
> As it turns out, the CSS engine _really_ wants all styleable nodes to be > traceable to a single root node. If that's not the case (as in this PR with > the overlay buttons), all kinds of things go wrong. > > I've fixed this issue by having the scene's root node be the parent of the > scene overlay. Note that only the overlay knows that the scene root is its > parent, the scene root has no knowledge of that (i.e. the overlay is not a > child of the scene root that you can see with > `Parent.getChildrenUnmodifiable()`) > > With this change, the CSS engine works correctly. As a side effect, it now > also picks up stylesheets of the root node. This makes it possible to > interfere with the internal stylesheets of the button overlay. In order to > reduce the chance of that happening, I've renamed all style classes to have > the `-FX-INTERNAL-` prefix. This should hopefully make it clear enough that > this is not public API. Confirmed that this change has fixed the issue... ------------- PR Comment: https://git.openjdk.org/jfx/pull/1605#issuecomment-2958743960
