On Thu, Mar 10, 2016 at 01:43:13PM -0500, Matthias Clasen wrote: > Hi, > > I would like to discuss strategies for implementing accessibility > features in Wayland that will be needed for a fully featured desktop. > There's a whole list of individual items, but for now I'd like to > focus on keyboard accessibility features, ie roughly the feature that > traditionally labeled AccessX: > > - slow keys (only accept key presses after a delay) > - sticky keys (support one-key-at-a-time operation by latching and > locking modifiers) > - bounce keys (reject quick key presses of the same key) > - toggle keys (special key bindings to enable the aforementioned > features: hold-shift-for-8-seconds for slow keys, > shift-5-times-in-a-row for sticky keys) > > The following two are not technically AccessX, but are close enough to > include them: > - key repeat > - visual bell (all of the AccessX features have configurable bells; > the visual bell can be configured to be per-window or global) > > Under X, all of these features are implemented in the XKB code in the > server (the visual bell gets handled by a client that selects for for > XkbBellNotify. In GNOME, that is mutter).
[...] > I know that one of the guiding principles of the Wayland architecure > is 'client-side', but I think the limitations listed > here are significant enough to argue for a compositor side > implementation of keyboard a11y. I don't think that this needs (a lot > of) new protocol, except for maybe a way to query and monitor state > related to these features. [...] > Anyway, I'd like to hear people's thoughts about this topic. fwiw, I fully agree that this need to be implemented on the compositor side. Client-side first is a nice principle for things that are client-specific but I see accessibility as a feature of the user, not of the software. Thus it falls into the same category as other user-specific features like tapping that are already implemented in the compositor (or even hidden inside libinput). Cheers, Peter _______________________________________________ wayland-devel mailing list wayland-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-devel
