core/homeassistant/components/locative/device_tracker.py

67 lines
2.2 KiB
Python

"""Support for the Locative platform."""
from homeassistant.components.device_tracker import TrackerEntity
from homeassistant.config_entries import ConfigEntry
from homeassistant.core import HomeAssistant, callback
from homeassistant.helpers.dispatcher import async_dispatcher_connect
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from . import DOMAIN as LT_DOMAIN, TRACKER_UPDATE
async def async_setup_entry(
hass: HomeAssistant, entry: ConfigEntry, async_add_entities: AddEntitiesCallback
) -> None:
"""Configure a dispatcher connection based on a config entry."""
@callback
def _receive_data(device, location, location_name):
"""Receive set location."""
if device in hass.data[LT_DOMAIN]["devices"]:
return
hass.data[LT_DOMAIN]["devices"].add(device)
async_add_entities([LocativeEntity(device, location, location_name)])
hass.data[LT_DOMAIN]["unsub_device_tracker"][entry.entry_id] = (
async_dispatcher_connect(hass, TRACKER_UPDATE, _receive_data)
)
class LocativeEntity(TrackerEntity):
"""Represent a tracked device."""
def __init__(self, device, location, location_name):
"""Set up Locative entity."""
self._name = device
self._attr_latitude = location[0]
self._attr_longitude = location[1]
self._attr_location_name = location_name
self._unsub_dispatcher = None
@property
def name(self):
"""Return the name of the device."""
return self._name
async def async_added_to_hass(self) -> None:
"""Register state update callback."""
self._unsub_dispatcher = async_dispatcher_connect(
self.hass, TRACKER_UPDATE, self._async_receive_data
)
async def async_will_remove_from_hass(self) -> None:
"""Clean up after entity before removal."""
self._unsub_dispatcher()
@callback
def _async_receive_data(self, device, location, location_name):
"""Update device data."""
if device != self._name:
return
self._attr_location_name = location_name
self._attr_latitude = location[0]
self._attr_longitude = location[1]
self.async_write_ha_state()