RFR: 8313650: Add hasProperties method to MenuItem and Toggle

[Michael Strauß]

On Fri, 18 Aug 2023 22:42:22 GMT, Andy Goryachev <angorya at openjdk.org> wrote:

> > (unless we are also willing to create a new shared interface that Node, MenuItem, and Toggle all inherit)
> 
> that would be a clean(er) design, at the expense of slight runtime overhead traversing the interface table. could there be any other issues?

I think a new interface should solve a problem, and not merely serve to organize similarly-named methods. What would you use such an interface for? I've previously proposed a content graph (see #1096), which would unify SG nodes and non-SG nodes and represent these graphs in a way that makes them independent from skins. Such a feature might warrant thinking about moving `getProperties()`/`hasProperties()` to a shared interface.

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PR Comment: https://git.openjdk.org/jfx/pull/1215#issuecomment-1684517516