def callback(proxy, event_type, event, reference):
SUPPRESS_EVENT = None
PASS_EVENT_THROUGH = event
# Don't pass on meta events meant for this event tap.
is_unexpected_event = event_type not in self._KEYBOARD_EVENTS
if is_unexpected_event:
if event_type == kCGEventTapDisabledByTimeout:
# Re-enable the tap and hope we act faster next time
CGEventTapEnable(self._tap, True)
plover.log.warning(
"Keystrokes may have been missed. "
+ "Keyboard event tap has been re-enabled. ")
return SUPPRESS_EVENT
# Don't intercept the event if it has modifiers, allow
# Fn and Numeric flags so we can suppress the arrow and
# extended (home, end, etc...) keys.
suppressible_modifiers = (kCGEventFlagMaskNumericPad |
kCGEventFlagMaskSecondaryFn |
kCGEventFlagMaskNonCoalesced)
has_nonsupressible_modifiers = \
CGEventGetFlags(event) & ~suppressible_modifiers
if has_nonsupressible_modifiers:
return PASS_EVENT_THROUGH
keycode = CGEventGetIntegerValueField(
event, kCGKeyboardEventKeycode)
key = KEYCODE_TO_KEY.get(keycode)
self._async_dispatch(key, event_type)
if key in self._suppressed_keys:
return SUPPRESS_EVENT
return PASS_EVENT_THROUGH
def _send_sequence(self, sequence):
# There is a bug in the event system that seems to cause inconsistent
# modifiers on key events:
# http://stackoverflow.com/questions/2008126/cgeventpost-possible-bug-when-simulating-keyboard-events
# My solution is to manage the state myself.
# I'm not sure how to deal with caps lock.
# If mods_flags is not zero at the end then bad things might happen.
mods_flags = 0
for keycode, key_down in sequence:
if keycode >= NX_KEY_OFFSET:
# Handle media (NX) key.
event = KeyboardEmulation._get_media_event(
keycode - NX_KEY_OFFSET, key_down)
else:
# Handle regular keycode.
if not key_down and keycode in MODIFIER_KEYS_TO_MASKS:
mods_flags &= ~MODIFIER_KEYS_TO_MASKS[keycode]
if key_down and keycode_needs_fn_mask(keycode):
mods_flags |= kCGEventFlagMaskSecondaryFn
event = CGEventCreateKeyboardEvent(
OUTPUT_SOURCE, keycode, key_down)
if key_down and keycode not in MODIFIER_KEYS_TO_MASKS:
event_flags = CGEventGetFlags(event)
# Add wanted flags, remove unwanted flags.
goal_flags = ((event_flags & ~KeyboardEmulation.MODS_MASK)
| mods_flags)
if event_flags != goal_flags:
CGEventSetFlags(event, goal_flags)
# Half millisecond pause after key down.
sleep(0.0005)
if key_down and keycode in MODIFIER_KEYS_TO_MASKS:
mods_flags |= MODIFIER_KEYS_TO_MASKS[keycode]
if not key_down and keycode_needs_fn_mask(keycode):
mods_flags &= ~kCGEventFlagMaskSecondaryFn
CGEventPost(kCGSessionEventTap, event)
if self._time_between_key_presses != 0:
sleep(self._time_between_key_presses / 1000)
def callback(proxy, event_type, event, reference):
# Don't pass on meta events meant for this event tap.
if event_type not in self._KEYBOARD_EVENTS:
return None
# Don't intercept events from this module.
if (CGEventGetIntegerValueField(event, kCGEventSourceStateID) ==
MY_EVENT_SOURCE_ID):
return event
# Don't intercept the event if it has modifiers.
if CGEventGetFlags(event) & ~kCGEventFlagMaskNonCoalesced:
return event
keycode = CGEventGetIntegerValueField(event, kCGKeyboardEventKeycode)
if keycode not in KEYCODE_TO_CHAR:
return event
char = KEYCODE_TO_CHAR[keycode]
handler_name = 'key_up' if event_type == kCGEventKeyUp else 'key_down'
handler = getattr(self, handler_name, lambda event: None)
handler(KeyboardEvent(char))
return None if self.is_keyboard_suppressed() else event
def callback(proxy, event_type, event, reference):
# Don't pass on meta events meant for this event tap.
if event_type not in self._KEYBOARD_EVENTS:
return None
# Don't intercept the event if it has modifiers, allow
# Fn and Numeric flags so we can suppress the arrow and
# extended (home, end, etc...) keys.
if CGEventGetFlags(event) & ~(kCGEventFlagMaskNumericPad
| kCGEventFlagMaskSecondaryFn
| kCGEventFlagMaskNonCoalesced):
return event
keycode = CGEventGetIntegerValueField(event,
kCGKeyboardEventKeycode)
key = KEYCODE_TO_KEY.get(keycode)
if key is not None:
handler = self.key_up if event_type == kCGEventKeyUp else self.key_down
handler(key)
if key in self._suppressed_keys:
# Suppress event.
event = None
return event
