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Track time change will only wrap listener with checks if needed

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Paulus Schoutsen 2014-01-30 08:31:34 -08:00
parent 416816cef7
commit eccf0ff806
1 changed files with 31 additions and 22 deletions
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53
homeassistant/__init__.py
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@ -98,34 +98,43 @@ def track_time_change(bus, action,
hour=None, minute=None, second=None,
point_in_time=None, listen_once=False):
""" Adds a listener that will listen for a specified or matching time. """
pmp = _process_match_param
year, month, day = pmp(year), pmp(month), pmp(day)
hour, minute, second = pmp(hour), pmp(minute), pmp(second)
def time_listener(event):
""" Listens for matching time_changed events. """
now = event.data['now']
# We do not have to wrap the function if all parameters are None
if any((val is not None for val in
(year, month, day, hour, minute, second,
point_in_time, listen_once or None))):
mat = _matcher
pmp = _process_match_param
year, month, day = pmp(year), pmp(month), pmp(day)
hour, minute, second = pmp(hour), pmp(minute), pmp(second)
if (point_in_time and now > point_in_time) or \
(not point_in_time and
mat(now.year, year) and
mat(now.month, month) and
mat(now.day, day) and
mat(now.hour, hour) and
mat(now.minute, minute) and
mat(now.second, second)):
def time_listener(event):
""" Listens for matching time_changed events. """
now = event.data['now']
# point_in_time are exact points in time
# so we always remove it after fire
if listen_once or point_in_time:
bus.remove_event_listener(EVENT_TIME_CHANGED, time_listener)
mat = _matcher
action(now)
if (point_in_time and now > point_in_time) or \
(not point_in_time and
mat(now.year, year) and
mat(now.month, month) and
mat(now.day, day) and
mat(now.hour, hour) and
mat(now.minute, minute) and
mat(now.second, second)):
# Let the string representation make sense
time_listener.__name__ = 'Time listener for {}'.format(action.__name__)
# point_in_time are exact points in time
# so we always remove it after fire
if listen_once or point_in_time:
bus.remove_event_listener(EVENT_TIME_CHANGED,
time_listener)
action(now)
# Let the string representation make sense
time_listener.__name__ = 'Time listener for {}'.format(action.__name__)
else:
time_listener = action
bus.listen_event(EVENT_TIME_CHANGED, time_listener)