Just a direct mapping to X modifiers for now (= Shift, Control, Lock, Mod1-5). This gives us more flexibility to adapt it to our needs in the future. Also we don't have to include libxkbcommon headers just for the modifier definitions. Signed-off-by: Ran Benita <ran234@gmail.com> Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>