core/homeassistant/components/light/demo.py

79 lines
1.8 KiB
Python

"""
homeassistant.components.light.demo
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Demo platform that implements lights.
"""
import random
from homeassistant.components.light import (
Light, ATTR_BRIGHTNESS, ATTR_XY_COLOR)
LIGHT_COLORS = [
[0.861, 0.3259],
[0.6389, 0.3028],
[0.1684, 0.0416]
]
def setup_platform(hass, config, add_devices_callback, discovery_info=None):
""" Find and return demo lights. """
add_devices_callback([
DemoLight("Bed Light", False),
DemoLight("Ceiling", True),
DemoLight("Kitchen", True)
])
class DemoLight(Light):
""" Provides a demo switch. """
def __init__(self, name, state, xy=None, brightness=180):
self._name = name
self._state = state
self._xy = xy or random.choice(LIGHT_COLORS)
self._brightness = brightness
@property
def should_poll(self):
""" No polling needed for a demo light. """
return False
@property
def name(self):
""" Returns the name of the device if any. """
return self._name
@property
def brightness(self):
""" Brightness of this light between 0..255. """
return self._brightness
@property
def color_xy(self):
""" XY color value. """
return self._xy
@property
def is_on(self):
""" True if device is on. """
return self._state
def turn_on(self, **kwargs):
""" Turn the device on. """
self._state = True
if ATTR_XY_COLOR in kwargs:
self._xy = kwargs[ATTR_XY_COLOR]
if ATTR_BRIGHTNESS in kwargs:
self._brightness = kwargs[ATTR_BRIGHTNESS]
self.update_ha_state()
def turn_off(self, **kwargs):
""" Turn the device off. """
self._state = False
self.update_ha_state()