83 lines
2.3 KiB
Python
83 lines
2.3 KiB
Python
"""
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Support for Homematic lighs.
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For more details about this platform, please refer to the documentation at
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https://home-assistant.io/components/light.homematic/
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"""
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import logging
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from homeassistant.components.light import (ATTR_BRIGHTNESS,
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SUPPORT_BRIGHTNESS, Light)
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from homeassistant.components.homematic import HMDevice
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from homeassistant.const import STATE_UNKNOWN
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from homeassistant.loader import get_component
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_LOGGER = logging.getLogger(__name__)
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DEPENDENCIES = ['homematic']
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SUPPORT_HOMEMATIC = SUPPORT_BRIGHTNESS
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def setup_platform(hass, config, add_devices, discovery_info=None):
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"""Setup the Homematic light platform."""
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if discovery_info is None:
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return
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homematic = get_component("homematic")
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return homematic.setup_hmdevice_discovery_helper(
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hass,
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HMLight,
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discovery_info,
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add_devices
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)
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class HMLight(HMDevice, Light):
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"""Representation of a Homematic light."""
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@property
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def brightness(self):
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"""Return the brightness of this light between 0..255."""
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if not self.available:
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return None
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# Is dimmer?
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if self._state is "LEVEL":
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return int(self._hm_get_state() * 255)
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else:
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return None
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@property
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def is_on(self):
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"""Return true if light is on."""
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try:
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return self._hm_get_state() > 0
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except TypeError:
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return False
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@property
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def supported_features(self):
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"""Flag supported features."""
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return SUPPORT_HOMEMATIC
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def turn_on(self, **kwargs):
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"""Turn the light on."""
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if not self.available:
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return
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if ATTR_BRIGHTNESS in kwargs and self._state is "LEVEL":
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percent_bright = float(kwargs[ATTR_BRIGHTNESS]) / 255
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self._hmdevice.set_level(percent_bright, self._channel)
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else:
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self._hmdevice.on(self._channel)
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def turn_off(self, **kwargs):
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"""Turn the light off."""
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if self.available:
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self._hmdevice.off(self._channel)
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def _init_data_struct(self):
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"""Generate a data dict (self._data) from the Homematic metadata."""
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# Use LEVEL
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self._state = "LEVEL"
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self._data.update({self._state: STATE_UNKNOWN})
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