core/homeassistant/components/cover/homematic.py

87 lines
2.5 KiB
Python

"""
The homematic cover platform.
For more details about this platform, please refer to the documentation at
https://home-assistant.io/components/cover.homematic/
Important: For this platform to work the homematic component has to be
properly configured.
"""
import logging
from homeassistant.const import STATE_UNKNOWN
from homeassistant.components.cover import CoverDevice,\
ATTR_POSITION
import homeassistant.components.homematic as homematic
_LOGGER = logging.getLogger(__name__)
DEPENDENCIES = ['homematic']
def setup_platform(hass, config, add_callback_devices, discovery_info=None):
"""Setup the platform."""
if discovery_info is None:
return
return homematic.setup_hmdevice_discovery_helper(
HMCover,
discovery_info,
add_callback_devices
)
# pylint: disable=abstract-method
class HMCover(homematic.HMDevice, CoverDevice):
"""Represents a Homematic Cover in Home Assistant."""
@property
def current_cover_position(self):
"""
Return current position of cover.
None is unknown, 0 is closed, 100 is fully open.
"""
if self.available:
return int(self._hm_get_state() * 100)
return None
def set_cover_position(self, **kwargs):
"""Move the cover to a specific position."""
if self.available:
if ATTR_POSITION in kwargs:
position = float(kwargs[ATTR_POSITION])
position = min(100, max(0, position))
level = position / 100.0
self._hmdevice.set_level(level, self._channel)
@property
def is_closed(self):
"""Return if the cover is closed."""
if self.current_cover_position is not None:
if self.current_cover_position > 0:
return False
else:
return True
def open_cover(self, **kwargs):
"""Open the cover."""
if self.available:
self._hmdevice.move_up(self._channel)
def close_cover(self, **kwargs):
"""Close the cover."""
if self.available:
self._hmdevice.move_down(self._channel)
def stop_cover(self, **kwargs):
"""Stop the device if in motion."""
if self.available:
self._hmdevice.stop(self._channel)
def _init_data_struct(self):
"""Generate a data dict (self._data) from hm metadata."""
# Add state to data dict
self._state = "LEVEL"
self._data.update({self._state: STATE_UNKNOWN})