69 lines
2.2 KiB
Python
69 lines
2.2 KiB
Python
"""
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Support for Axis binary sensors.
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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/binary_sensor.axis/
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"""
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import logging
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from datetime import timedelta
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from homeassistant.components.binary_sensor import (BinarySensorDevice)
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from homeassistant.components.axis import (AxisDeviceEvent)
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from homeassistant.const import (CONF_TRIGGER_TIME)
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from homeassistant.helpers.event import track_point_in_utc_time
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from homeassistant.util.dt import utcnow
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DEPENDENCIES = ['axis']
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_LOGGER = logging.getLogger(__name__)
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def setup_platform(hass, config, add_devices, discovery_info=None):
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"""Setup Axis device event."""
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add_devices([AxisBinarySensor(discovery_info['axis_event'], hass)], True)
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class AxisBinarySensor(AxisDeviceEvent, BinarySensorDevice):
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"""Representation of a binary Axis event."""
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def __init__(self, axis_event, hass):
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"""Initialize the binary sensor."""
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self.hass = hass
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self._state = False
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self._delay = axis_event.device_config(CONF_TRIGGER_TIME)
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self._timer = None
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AxisDeviceEvent.__init__(self, axis_event)
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@property
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def is_on(self):
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"""Return true if event is active."""
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return self._state
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def update(self):
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"""Get the latest data and update the state."""
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self._state = self.axis_event.is_tripped
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def _update_callback(self):
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"""Update the sensor's state, if needed."""
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self.update()
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if self._timer is not None:
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self._timer()
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self._timer = None
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if self._delay > 0 and not self.is_on:
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# Set timer to wait until updating the state
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def _delay_update(now):
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"""Timer callback for sensor update."""
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_LOGGER.debug("%s Called delayed (%s sec) update.",
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self._name, self._delay)
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self.schedule_update_ha_state()
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self._timer = None
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self._timer = track_point_in_utc_time(
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self.hass, _delay_update,
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utcnow() + timedelta(seconds=self._delay))
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else:
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self.schedule_update_ha_state()
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