Adding information about current TV channel to WebOS media player (#1…

…1339)

* Added Channel attribute to webos media pplayer

* webostv: Current TV channel display as media_title

* Added displaying information about the current TV channel for WebOS platform

* Fixed PEP8 requirements

homeassistant/components/media_player/webostv.py

@@ -174,6 +174,7 @@ def __init__(self, host, name, customize, config, timeout,
         self._state = STATE_UNKNOWN
         self._source_list = {}
         self._app_list = {}
+        self._channel = None
 
     @util.Throttle(MIN_TIME_BETWEEN_SCANS, MIN_TIME_BETWEEN_FORCED_SCANS)
     def update(self):
@@ -189,10 +190,12 @@ def update(self):
                 self._state = STATE_OFF
                 self._current_source = None
                 self._current_source_id = None
+                self._channel = None
 
             if self._state is not STATE_OFF:
                 self._muted = self._client.get_muted()
                 self._volume = self._client.get_volume()
+                self._channel = self._client.get_current_channel()
 
                 self._source_list = {}
                 self._app_list = {}
@@ -225,6 +228,7 @@ def update(self):
             self._state = STATE_OFF
             self._current_source = None
             self._current_source_id = None
+            self._channel = None
 
     @property
     def name(self):
@@ -261,6 +265,14 @@ def media_content_type(self):
         """Content type of current playing media."""
         return MEDIA_TYPE_CHANNEL
 
+    @property
+    def media_title(self):
+        """Title of current playing media."""
+        if (self._channel is not None) and ('channelName' in self._channel):
+            return self._channel['channelName']
+        else:
+            return None
+
     @property
     def media_image_url(self):
         """Image url of current playing media."""