Add xy attribute to Yeelight (#9957)

Allows using light profiles with yeelight bulbs

homeassistant/components/light/yeelight.py

@@ -13,12 +13,15 @@ import voluptuous as vol
 from homeassistant.util.color import (
     color_temperature_mired_to_kelvin as mired_to_kelvin,
     color_temperature_kelvin_to_mired as kelvin_to_mired,
-    color_temperature_to_rgb)
+    color_temperature_to_rgb,
+    color_RGB_to_xy,
+    color_xy_brightness_to_RGB)
 from homeassistant.const import CONF_DEVICES, CONF_NAME
 from homeassistant.components.light import (
     ATTR_BRIGHTNESS, ATTR_RGB_COLOR, ATTR_TRANSITION, ATTR_COLOR_TEMP,
-    ATTR_FLASH, FLASH_SHORT, FLASH_LONG, ATTR_EFFECT,
+    ATTR_FLASH, ATTR_XY_COLOR, FLASH_SHORT, FLASH_LONG, ATTR_EFFECT,
-    SUPPORT_BRIGHTNESS, SUPPORT_RGB_COLOR, SUPPORT_TRANSITION,
+    SUPPORT_BRIGHTNESS, SUPPORT_RGB_COLOR, SUPPORT_XY_COLOR,
+    SUPPORT_TRANSITION,
     SUPPORT_COLOR_TEMP, SUPPORT_FLASH, SUPPORT_EFFECT,
     Light, PLATFORM_SCHEMA)
 import homeassistant.helpers.config_validation as cv
@@ -51,6 +54,7 @@ SUPPORT_YEELIGHT = (SUPPORT_BRIGHTNESS |
 
 SUPPORT_YEELIGHT_RGB = (SUPPORT_YEELIGHT |
                         SUPPORT_RGB_COLOR |
+                        SUPPORT_XY_COLOR |
                         SUPPORT_EFFECT |
                         SUPPORT_COLOR_TEMP)
 
@@ -154,6 +158,7 @@ class YeelightLight(Light):
         self._color_temp = None
         self._is_on = None
         self._rgb = None
+        self._xy = None
 
     @property
     def available(self) -> bool:
@@ -236,6 +241,11 @@ class YeelightLight(Light):
         """Return the color property."""
         return self._rgb
 
+    @property
+    def xy_color(self) -> tuple:
+        """Return the XY color value."""
+        return self._xy
+
     @property
     def _properties(self) -> dict:
         return self._bulb.last_properties
@@ -284,6 +294,12 @@ class YeelightLight(Light):
 
             self._rgb = self._get_rgb_from_properties()
 
+            if self._rgb:
+                xyb = color_RGB_to_xy(*self._rgb)
+                self._xy = (xyb[0], xyb[1])
+            else:
+                self._xy = None
+
             self._available = True
         except yeelight.BulbException as ex:
             if self._available:  # just inform once
@@ -410,6 +426,7 @@ class YeelightLight(Light):
         rgb = kwargs.get(ATTR_RGB_COLOR)
         flash = kwargs.get(ATTR_FLASH)
         effect = kwargs.get(ATTR_EFFECT)
+        xy_color = kwargs.get(ATTR_XY_COLOR)
 
         duration = int(self.config[CONF_TRANSITION])  # in ms
         if ATTR_TRANSITION in kwargs:  # passed kwarg overrides config
@@ -427,6 +444,9 @@ class YeelightLight(Light):
             except yeelight.BulbException as ex:
                 _LOGGER.error("Unable to turn on music mode,"
                               "consider disabling it: %s", ex)
+        if xy_color and brightness:
+            rgb = color_xy_brightness_to_RGB(xy_color[0], xy_color[1],
+                                             brightness)
 
         try:
             # values checked for none in methods