protocol: improve wl_keyboard focus documentation

The compositor must not send any key events while a surface is not focused,
but it may do so with modifiers. This is to enable clients to handle pointer
events differently based on the current modifier state.

Signed-off-by: Xaver Hugl <xaver.hugl@gmail.com>
13 jobs for !259 with document-wl-keyboard in 2 minutes and 39 seconds (queued for 1 second)
merge request