core/homeassistant/components/automation/event.py

32 lines
776 B
Python

"""
homeassistant.components.automation.event
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Offers event listening automation rules.
"""
import logging
CONF_EVENT_TYPE = "event_type"
CONF_EVENT_DATA = "event_data"
_LOGGER = logging.getLogger(__name__)
def trigger(hass, config, action):
""" Listen for events based on config. """
event_type = config.get(CONF_EVENT_TYPE)
if event_type is None:
_LOGGER.error("Missing configuration key %s", CONF_EVENT_TYPE)
return False
event_data = config.get(CONF_EVENT_DATA, {})
def handle_event(event):
""" Listens for events and calls the action when data matches. """
if event_data == event.data:
action()
hass.bus.listen(event_type, handle_event)
return True