core/homeassistant/components/binary_sensor/alarmdecoder.py

113 lines
3.4 KiB
Python

"""
Support for AlarmDecoder zone states- represented as binary sensors.
For more details about this platform, please refer to the documentation at
https://home-assistant.io/components/binary_sensor.alarmdecoder/
"""
import asyncio
import logging
from homeassistant.core import callback
from homeassistant.helpers.dispatcher import async_dispatcher_connect
from homeassistant.components.binary_sensor import BinarySensorDevice
from homeassistant.components.alarmdecoder import (ZONE_SCHEMA,
CONF_ZONES,
CONF_ZONE_NAME,
CONF_ZONE_TYPE,
SIGNAL_ZONE_FAULT,
SIGNAL_ZONE_RESTORE)
DEPENDENCIES = ['alarmdecoder']
_LOGGER = logging.getLogger(__name__)
@asyncio.coroutine
def async_setup_platform(hass, config, async_add_devices, discovery_info=None):
"""Set up the AlarmDecoder binary sensor devices."""
configured_zones = discovery_info[CONF_ZONES]
devices = []
for zone_num in configured_zones:
device_config_data = ZONE_SCHEMA(configured_zones[zone_num])
zone_type = device_config_data[CONF_ZONE_TYPE]
zone_name = device_config_data[CONF_ZONE_NAME]
device = AlarmDecoderBinarySensor(
hass, zone_num, zone_name, zone_type)
devices.append(device)
async_add_devices(devices)
return True
class AlarmDecoderBinarySensor(BinarySensorDevice):
"""Representation of an AlarmDecoder binary sensor."""
def __init__(self, hass, zone_number, zone_name, zone_type):
"""Initialize the binary_sensor."""
self._zone_number = zone_number
self._zone_type = zone_type
self._state = 0
self._name = zone_name
self._type = zone_type
_LOGGER.debug("Setup up zone: %s", self._name)
@asyncio.coroutine
def async_added_to_hass(self):
"""Register callbacks."""
async_dispatcher_connect(
self.hass, SIGNAL_ZONE_FAULT, self._fault_callback)
async_dispatcher_connect(
self.hass, SIGNAL_ZONE_RESTORE, self._restore_callback)
@property
def name(self):
"""Return the name of the entity."""
return self._name
@property
def icon(self):
"""Icon for device by its type."""
if "window" in self._name.lower():
return "mdi:window-open" if self.is_on else "mdi:window-closed"
if self._type == 'smoke':
return "mdi:fire"
return None
@property
def should_poll(self):
"""No polling needed."""
return False
@property
def is_on(self):
"""Return true if sensor is on."""
return self._state == 1
@property
def device_class(self):
"""Return the class of this sensor, from DEVICE_CLASSES."""
return self._zone_type
@callback
def _fault_callback(self, zone):
"""Update the zone's state, if needed."""
if zone is None or int(zone) == self._zone_number:
self._state = 1
self.hass.async_add_job(self.async_update_ha_state())
@callback
def _restore_callback(self, zone):
"""Update the zone's state, if needed."""
if zone is None or int(zone) == self._zone_number:
self._state = 0
self.hass.async_add_job(self.async_update_ha_state())