core/homeassistant/components/light/tradfri.py

335 lines
11 KiB
Python

"""
Support for the IKEA Tradfri platform.
For more details about this platform, please refer to the documentation at
https://home-assistant.io/components/light.tradfri/
"""
import asyncio
import logging
from homeassistant.core import callback
from homeassistant.const import ATTR_BATTERY_LEVEL
from homeassistant.components.light import (
ATTR_BRIGHTNESS, ATTR_COLOR_TEMP, ATTR_RGB_COLOR, ATTR_TRANSITION,
SUPPORT_BRIGHTNESS, SUPPORT_TRANSITION, SUPPORT_COLOR_TEMP,
SUPPORT_RGB_COLOR, Light)
from homeassistant.components.light import \
PLATFORM_SCHEMA as LIGHT_PLATFORM_SCHEMA
from homeassistant.components.tradfri import KEY_GATEWAY, KEY_TRADFRI_GROUPS, \
KEY_API
from homeassistant.util import color as color_util
_LOGGER = logging.getLogger(__name__)
DEPENDENCIES = ['tradfri']
PLATFORM_SCHEMA = LIGHT_PLATFORM_SCHEMA
IKEA = 'IKEA of Sweden'
TRADFRI_LIGHT_MANAGER = 'Tradfri Light Manager'
SUPPORTED_FEATURES = (SUPPORT_BRIGHTNESS | SUPPORT_TRANSITION)
ALLOWED_TEMPERATURES = {IKEA}
@asyncio.coroutine
def async_setup_platform(hass, config, async_add_devices, discovery_info=None):
"""Set up the IKEA Tradfri Light platform."""
if discovery_info is None:
return
gateway_id = discovery_info['gateway']
api = hass.data[KEY_API][gateway_id]
gateway = hass.data[KEY_GATEWAY][gateway_id]
devices_command = gateway.get_devices()
devices_commands = yield from api(devices_command)
devices = yield from api(devices_commands)
lights = [dev for dev in devices if dev.has_light_control]
if lights:
async_add_devices(TradfriLight(light, api) for light in lights)
allow_tradfri_groups = hass.data[KEY_TRADFRI_GROUPS][gateway_id]
if allow_tradfri_groups:
groups_command = gateway.get_groups()
groups_commands = yield from api(groups_command)
groups = yield from api(groups_commands)
if groups:
async_add_devices(TradfriGroup(group, api) for group in groups)
class TradfriGroup(Light):
"""The platform class required by hass."""
def __init__(self, light, api):
"""Initialize a Group."""
self._api = api
self._group = light
self._name = light.name
self._refresh(light)
@asyncio.coroutine
def async_added_to_hass(self):
"""Start thread when added to hass."""
self._async_start_observe()
@property
def should_poll(self):
"""No polling needed for tradfri group."""
return False
@property
def supported_features(self):
"""Flag supported features."""
return SUPPORTED_FEATURES
@property
def name(self):
"""Return the display name of this group."""
return self._name
@property
def is_on(self):
"""Return true if group lights are on."""
return self._group.state
@property
def brightness(self):
"""Return the brightness of the group lights."""
return self._group.dimmer
@asyncio.coroutine
def async_turn_off(self, **kwargs):
"""Instruct the group lights to turn off."""
yield from self._api(self._group.set_state(0))
@asyncio.coroutine
def async_turn_on(self, **kwargs):
"""Instruct the group lights to turn on, or dim."""
keys = {}
if ATTR_TRANSITION in kwargs:
keys['transition_time'] = int(kwargs[ATTR_TRANSITION]) * 10
if ATTR_BRIGHTNESS in kwargs:
if kwargs[ATTR_BRIGHTNESS] == 255:
kwargs[ATTR_BRIGHTNESS] = 254
yield from self._api(
self._group.set_dimmer(kwargs[ATTR_BRIGHTNESS], **keys))
else:
yield from self._api(self._group.set_state(1))
@callback
def _async_start_observe(self, exc=None):
"""Start observation of light."""
# pylint: disable=import-error
from pytradfri.error import PyTradFriError
if exc:
_LOGGER.warning("Observation failed for %s", self._name,
exc_info=exc)
try:
cmd = self._group.observe(callback=self._observe_update,
err_callback=self._async_start_observe,
duration=0)
self.hass.async_add_job(self._api(cmd))
except PyTradFriError as err:
_LOGGER.warning("Observation failed, trying again", exc_info=err)
self._async_start_observe()
def _refresh(self, group):
"""Refresh the light data."""
self._group = group
self._name = group.name
@callback
def _observe_update(self, tradfri_device):
"""Receive new state data for this light."""
self._refresh(tradfri_device)
self.async_schedule_update_ha_state()
class TradfriLight(Light):
"""The platform class required by Home Assistant."""
def __init__(self, light, api):
"""Initialize a Light."""
self._api = api
self._light = None
self._light_control = None
self._light_data = None
self._name = None
self._rgb_color = None
self._features = SUPPORTED_FEATURES
self._temp_supported = False
self._available = True
self._refresh(light)
@property
def min_mireds(self):
"""Return the coldest color_temp that this light supports."""
if self._light_control.max_kelvin is not None:
return color_util.color_temperature_kelvin_to_mired(
self._light_control.max_kelvin
)
@property
def max_mireds(self):
"""Return the warmest color_temp that this light supports."""
if self._light_control.min_kelvin is not None:
return color_util.color_temperature_kelvin_to_mired(
self._light_control.min_kelvin
)
@property
def device_state_attributes(self):
"""Return the devices' state attributes."""
info = self._light.device_info
attrs = {}
if info.battery_level is not None:
attrs[ATTR_BATTERY_LEVEL] = info.battery_level
return attrs
@asyncio.coroutine
def async_added_to_hass(self):
"""Start thread when added to hass."""
self._async_start_observe()
@property
def available(self):
"""Return True if entity is available."""
return self._available
@property
def should_poll(self):
"""No polling needed for tradfri light."""
return False
@property
def supported_features(self):
"""Flag supported features."""
return self._features
@property
def name(self):
"""Return the display name of this light."""
return self._name
@property
def is_on(self):
"""Return true if light is on."""
return self._light_data.state
@property
def brightness(self):
"""Return the brightness of the light."""
return self._light_data.dimmer
@property
def color_temp(self):
"""Return the CT color value in mireds."""
kelvin_color = self._light_data.kelvin_color_inferred
if kelvin_color is not None:
return color_util.color_temperature_kelvin_to_mired(
kelvin_color
)
@property
def rgb_color(self):
"""RGB color of the light."""
return self._rgb_color
@asyncio.coroutine
def async_turn_off(self, **kwargs):
"""Instruct the light to turn off."""
yield from self._api(self._light_control.set_state(False))
@asyncio.coroutine
def async_turn_on(self, **kwargs):
"""
Instruct the light to turn on.
After adding "self._light_data.hexcolor is not None"
for ATTR_RGB_COLOR, this also supports Philips Hue bulbs.
"""
if ATTR_RGB_COLOR in kwargs and self._light_data.hex_color is not None:
yield from self._api(
self._light.light_control.set_rgb_color(
*kwargs[ATTR_RGB_COLOR]))
elif ATTR_COLOR_TEMP in kwargs and \
self._light_data.hex_color is not None and \
self._temp_supported:
kelvin = color_util.color_temperature_mired_to_kelvin(
kwargs[ATTR_COLOR_TEMP])
yield from self._api(
self._light_control.set_kelvin_color(kelvin))
keys = {}
if ATTR_TRANSITION in kwargs:
keys['transition_time'] = int(kwargs[ATTR_TRANSITION]) * 10
if ATTR_BRIGHTNESS in kwargs:
if kwargs[ATTR_BRIGHTNESS] == 255:
kwargs[ATTR_BRIGHTNESS] = 254
yield from self._api(
self._light_control.set_dimmer(kwargs[ATTR_BRIGHTNESS],
**keys))
else:
yield from self._api(
self._light_control.set_state(True))
@callback
def _async_start_observe(self, exc=None):
"""Start observation of light."""
# pylint: disable=import-error
from pytradfri.error import PyTradFriError
if exc:
_LOGGER.warning("Observation failed for %s", self._name,
exc_info=exc)
try:
cmd = self._light.observe(callback=self._observe_update,
err_callback=self._async_start_observe,
duration=0)
self.hass.async_add_job(self._api(cmd))
except PyTradFriError as err:
_LOGGER.warning("Observation failed, trying again", exc_info=err)
self._async_start_observe()
def _refresh(self, light):
"""Refresh the light data."""
self._light = light
# Caching of LightControl and light object
self._available = light.reachable
self._light_control = light.light_control
self._light_data = light.light_control.lights[0]
self._name = light.name
self._rgb_color = None
self._features = SUPPORTED_FEATURES
if self._light.device_info.manufacturer == IKEA:
if self._light_control.can_set_kelvin:
self._features |= SUPPORT_COLOR_TEMP
if self._light_control.can_set_color:
self._features |= SUPPORT_RGB_COLOR
else:
if self._light_data.hex_color is not None:
self._features |= SUPPORT_RGB_COLOR
self._temp_supported = self._light.device_info.manufacturer \
in ALLOWED_TEMPERATURES
@callback
def _observe_update(self, tradfri_device):
"""Receive new state data for this light."""
self._refresh(tradfri_device)
self._rgb_color = color_util.rgb_hex_to_rgb_list(
self._light_data.hex_color_inferred
)
self.async_schedule_update_ha_state()