Reset receiver controller on connection lost (#379)

pychromecast/socket_client.py

@@ -651,6 +651,7 @@ def _check_connection(self):
             reset = True
 
         if reset:
+            self.receiver_controller.disconnected()
             for channel in self._open_channels:
                 self.disconnect_channel(channel)
             self._report_connection_status(
@@ -1078,6 +1079,11 @@ def __init__(self, cast_type=CAST_TYPE_CHROMECAST):
         self._status_listeners = []
         self._launch_error_listeners = []
 
+    def disconnected(self):
+        """ Called when disconnected. Will erase status. """
+        self.logger.info("Receiver:channel_disconnected")
+        self.status = None
+
     @property
     def app_id(self):
         """ Convenience method to retrieve current app id. """