Hi, On 8 October 2015 at 21:13, Daniel Stone <dan...@fooishbar.org> wrote: > On 5 October 2015 at 21:31, Victor Berger <victor.ber...@m4x.org> wrote: >> In this case, for a "closed" enum, the binding can decide to ignore any >> value received on the wire that is not described in the XML, as anyway, the >> client would not know what to do with it (and if they knew, they should be >> using a more recent version of the binding). > > This should never happen. The compositor is responsible for tracking > which version the client has bound, and not sending it values it > doesn't know what to do with. > > I've heard mention that xdg-shell allows this, but I also can't see it > anywhere in the spec. Jasper?
Whoops ... 9:18 PM <Jasper> daniels, sorry, what were we talking about with enums? 9:20 PM <daniels> Jasper: people are concerned that xdg-shell has 'open' enums, in that a compositor can send a configure event with enum values unknown to the client 9:20 PM <Jasper> daniels, that's correct 9:20 PM <daniels> Jasper: bollocks, really? 9:20 PM <Jasper> daniels, http://cgit.freedesktop.org/wayland/weston/tree/protocol/xdg-shell.xml#n321 9:23 PM <daniels> Jasper: ah, i see - that does make quite a bit of sense 9:23 PM <daniels> Jasper: but i do wonder if we should bound that by what the client actually supports, e.g. don't send gnome-specific values unless the client has bound gtk_shell 9:23 PM <Jasper> daniels, the state mechanism is designed to solve a very specific race condition, so we don't want people inventing their own protocols to do the same. 9:24 PM <daniels> Jasper: oh, indeed 9:24 PM <Jasper> daniels, I would be fine with that, but I'm not sure it helps Rust clients. 9:24 PM <daniels> Jasper: indeed, more of a general musing 9:24 PM <daniels> Jasper: thanks for pointing that out; not sure how i missed it How does that play with Java/Haskell/etc? Would that just degenerate into a plain undecorated uint, or ... ? Cheers, Daniel _______________________________________________ wayland-devel mailing list wayland-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/wayland-devel
