core/homeassistant/components/automation/event.py

47 lines
1.3 KiB
Python

"""
Offer event listening automation rules.
For more details about this automation rule, please refer to the documentation
at https://home-assistant.io/docs/automation/trigger/#event-trigger
"""
import asyncio
import logging
import voluptuous as vol
from homeassistant.core import callback
from homeassistant.const import CONF_PLATFORM
from homeassistant.helpers import config_validation as cv
CONF_EVENT_TYPE = 'event_type'
CONF_EVENT_DATA = 'event_data'
_LOGGER = logging.getLogger(__name__)
TRIGGER_SCHEMA = vol.Schema({
vol.Required(CONF_PLATFORM): 'event',
vol.Required(CONF_EVENT_TYPE): cv.string,
vol.Optional(CONF_EVENT_DATA): dict,
})
@asyncio.coroutine
def async_trigger(hass, config, action):
"""Listen for events based on configuration."""
event_type = config.get(CONF_EVENT_TYPE)
event_data = config.get(CONF_EVENT_DATA)
@callback
def handle_event(event):
"""Listen for events and calls the action when data matches."""
if not event_data or all(val == event.data.get(key) for key, val
in event_data.items()):
hass.async_run_job(action, {
'trigger': {
'platform': 'event',
'event': event,
},
})
return hass.bus.async_listen(event_type, handle_event)