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rules: get keyboard group and use to get correct keycode for keysym

This commit is contained in:
Peter F. Patel-Schneider 2022-02-22 14:15:44 -05:00
parent 4c43910ed7
commit 1869f57f7f
1 changed files with 36 additions and 2 deletions
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38
lib/logitech_receiver/diversion.py
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@ -59,6 +59,25 @@ try:
NET_ACTIVE_WINDOW = xdisplay.intern_atom('_NET_ACTIVE_WINDOW')
NET_WM_PID = xdisplay.intern_atom('_NET_WM_PID')
WM_CLASS = xdisplay.intern_atom('WM_CLASS')
# set up to get keyboard state using ctypes interface to libx11
import ctypes
class X11Display(ctypes.Structure):
""" opaque struct """
class X11XkbStateRec(ctypes.Structure):
_fields_ = [('group', ctypes.c_ubyte), ('locked_group', ctypes.c_ubyte), ('base_group', ctypes.c_ushort),
('latched_group', ctypes.c_ushort), ('mods', ctypes.c_ubyte), ('base_mods', ctypes.c_ubyte),
('latched_mods', ctypes.c_ubyte), ('locked_mods', ctypes.c_ubyte), ('compat_state', ctypes.c_ubyte),
('grab_mods', ctypes.c_ubyte), ('compat_grab_mods', ctypes.c_ubyte), ('lookup_mods', ctypes.c_ubyte),
('compat_lookup_mods', ctypes.c_ubyte),
('ptr_buttons', ctypes.c_ushort)] # something strange is happening here but it is not being used
X11Lib = ctypes.cdll.LoadLibrary('libX11.so')
X11Lib.XOpenDisplay.restype = ctypes.POINTER(X11Display)
X11Lib.XkbGetState.argtypes = [ctypes.POINTER(X11Display), ctypes.c_uint, ctypes.POINTER(X11XkbStateRec)]
display = X11Lib.XOpenDisplay(None)
except Exception:
_log.warn(
'X11 not available - rules cannot access current process or modifier key state nor can they simulate input',
@ -69,6 +88,15 @@ except Exception:
x11 = False
def kbdgroup():
if x11:
state = X11XkbStateRec()
X11Lib.XkbGetState(display, 0x100, ctypes.pointer(state)) # 0x100 is core device FIXME
return state.group
else:
return None
def modifier_code(keycode):
if keycode == 0:
return None
@ -557,11 +585,17 @@ class KeyPress(Action):
_log.warn('X11 not available - rules cannot simulate keyboard input - %s', self)
def string_to_keycode(self, s, modifiers): # should take group and shift into account
group = kbdgroup()
keysym = Xlib.XK.string_to_keysym(s)
keycodes = gkeymap.get_entries_for_keyval(keysym)
for k in keycodes.keys:
if len(keycodes.keys) == 1:
k = keycodes.keys[0]
return k.keycode
_log.warn('rule KeyPress key name not currently available %s', self)
else:
for k in keycodes.keys:
if group == k.group:
return k.keycode
_log.warn('rule KeyPress key name not currently available %s', self)
def __str__(self):
return 'KeyPress: ' + ' '.join(self.key_symbols)