Author :
Pierre Le Marre
Date :
2024-12-03 10:12:03
Hash :551cca2a Message :state: Add server API for updating latched and locked mods & layout
Up to now, the “server state” `xkb_state` API only offered one entry
point to update the server state – `xkb_state_update_key`, which reflects
the direct keyboard keys state. But some updates come out-of-band from
keyboard input events stream, for example, a GUI layout switcher.
The X11 XKB protocol has a request which allows for such updates,
`XkbLatchLockState`[^1], but xkbcommon does not have similar
functionality. So server applications ended up using
`xkb_state_update_state` for this, but that’s a function intended for
client applications, not servers.
Add support for updating the latched & locked state of the mods and
layout. Note that the depressed states cannot be updated in this way --
XKB does not expect them to be updated out of band.
[^1]: https://www.x.org/releases/X11R7.7/doc/kbproto/xkbproto.html#Querying_and_Changing_Keyboard_State
Fixes: #310
Signed-off-by: Ran Benita <ran@unusedvar.com>
Co-authored-by: Ran Benita <ran@unusedvar.com>
Co-authored-by: Pierre Le Marre <dev@wismill.eu>
Pierre Le Marre