Merge pull request #27 from Danielhiversen/TellstickDimmer

Tellstick dimmer support

homeassistant/components/light/tellstick.py

@@ -0,0 +1,94 @@
+""" Support for Tellstick lights. """
+import logging
+# pylint: disable=no-name-in-module, import-error
+from homeassistant.components.light import ATTR_BRIGHTNESS
+from homeassistant.const import ATTR_FRIENDLY_NAME
+from homeassistant.helpers import ToggleDevice
+import tellcore.constants as tellcore_constants
+
+
+def setup_platform(hass, config, add_devices_callback, discovery_info=None):
+    """ Find and return tellstick lights. """
+
+    try:
+        import tellcore.telldus as telldus
+    except ImportError:
+        logging.getLogger(__name__).exception(
+            "Failed to import tellcore")
+        return []
+
+    core = telldus.TelldusCore()
+    switches_and_lights = core.devices()
+    lights = []
+
+    for switch in switches_and_lights:
+        if switch.methods(tellcore_constants.TELLSTICK_DIM):
+            lights.append(TellstickLight(switch))
+    add_devices_callback(lights)
+
+
+class TellstickLight(ToggleDevice):
+    """ Represents a tellstick light """
+    last_sent_command_mask = (tellcore_constants.TELLSTICK_TURNON |
+                              tellcore_constants.TELLSTICK_TURNOFF |
+                              tellcore_constants.TELLSTICK_DIM |
+                              tellcore_constants.TELLSTICK_UP |
+                              tellcore_constants.TELLSTICK_DOWN)
+
+    def __init__(self, tellstick):
+        self.tellstick = tellstick
+        self.state_attr = {ATTR_FRIENDLY_NAME: tellstick.name}
+        self.brightness = 0
+
+    @property
+    def name(self):
+        """ Returns the name of the switch if any. """
+        return self.tellstick.name
+
+    @property
+    def is_on(self):
+        """ True if switch is on. """
+        return self.brightness > 0
+
+    def turn_off(self, **kwargs):
+        """ Turns the switch off. """
+        self.tellstick.turn_off()
+        self.brightness = 0
+
+    def turn_on(self, **kwargs):
+        """ Turns the switch on. """
+        brightness = kwargs.get(ATTR_BRIGHTNESS)
+
+        if brightness is None:
+            self.brightness = 255
+        else:
+            self.brightness = brightness
+
+        self.tellstick.dim(self.brightness)
+
+    @property
+    def state_attributes(self):
+        """ Returns optional state attributes. """
+        attr = {
+            ATTR_FRIENDLY_NAME: self.name
+        }
+
+        attr[ATTR_BRIGHTNESS] = int(self.brightness)
+
+        return attr
+
+    def update(self):
+        """ Update state of the light. """
+        last_command = self.tellstick.last_sent_command(
+            self.last_sent_command_mask)
+
+        if last_command == tellcore_constants.TELLSTICK_TURNON:
+            self.brightness = 255
+        elif last_command == tellcore_constants.TELLSTICK_TURNOFF:
+            self.brightness = 0
+        elif (last_command == tellcore_constants.TELLSTICK_DIM or
+              last_command == tellcore_constants.TELLSTICK_UP or
+              last_command == tellcore_constants.TELLSTICK_DOWN):
+            last_sent_value = self.tellstick.last_sent_value()
+            if last_sent_value is not None:
+                self.brightness = last_sent_value

homeassistant/components/switch/tellstick.py

@@ -1,14 +1,10 @@
 """ Support for Tellstick switches. """
 import logging
 
-from homeassistant.helpers import ToggleDevice
-from homeassistant.const import ATTR_FRIENDLY_NAME
 
-try:
-    import tellcore.constants as tc_constants
-except ImportError:
-    # Don't care for now. Warning will come when get_switches is called.
-    pass
+from homeassistant.const import ATTR_FRIENDLY_NAME
+from homeassistant.helpers import ToggleDevice
+import tellcore.constants as tellcore_constants
 
 
 def get_devices(hass, config):
@@ -21,15 +17,21 @@ def get_devices(hass, config):
         return []
 
     core = telldus.TelldusCore()
-    switches = core.devices()
+    switches_and_lights = core.devices()
 
-    return [TellstickSwitch(switch) for switch in switches]
+    switches = []
+
+    for switch in switches_and_lights:
+        if not switch.methods(tellcore_constants.TELLSTICK_DIM):
+            switches.append(TellstickSwitchDevice(switch))
+
+    return switches
 
 
-class TellstickSwitch(ToggleDevice):
+class TellstickSwitchDevice(ToggleDevice):
     """ represents a Tellstick switch within home assistant. """
-    last_sent_command_mask = (tc_constants.TELLSTICK_TURNON |
-                              tc_constants.TELLSTICK_TURNOFF)
+    last_sent_command_mask = (tellcore_constants.TELLSTICK_TURNON |
+                              tellcore_constants.TELLSTICK_TURNOFF)
 
     def __init__(self, tellstick):
         self.tellstick = tellstick
@@ -51,7 +53,7 @@ class TellstickSwitch(ToggleDevice):
         last_command = self.tellstick.last_sent_command(
             self.last_sent_command_mask)
 
-        return last_command == tc_constants.TELLSTICK_TURNON
+        return last_command == tellcore_constants.TELLSTICK_TURNON
 
     def turn_on(self, **kwargs):
         """ Turns the switch on. """