fix music navs

demo.py

@@ -53,6 +53,10 @@ class DemoController:
         self._joined = set()
         # One room on Spotify and one not, so both kinds of card show up.
         self._spotify = {key: i == 0 for i, key in enumerate(cfg.ROOM_KEYS)}
+        # No cover, since the demo has no network to fetch one from.
+        self._track = {"song": "Harvest Moon", "artist": "Neil Young", "image": None}
+        # Its play button only shows for a stream one of your accounts plays.
+        self._account = next(iter(cfg.SPOTIFY_ACCOUNTS), None)
 
     # -- what the UI uses ---------------------------------------------
     def state(self):
@@ -61,7 +65,10 @@ class DemoController:
             "rooms": [
                 {"key": key, "label": self.cfg.TARGETS[key]["label"], "available": True,
                  "grouped": key in self._joined, "volume": self._volume[key],
-                 "play_state": self._play[key], "spotify": self._spotify[key], "error": None}
+                 "play_state": self._play[key], "spotify": self._spotify[key],
+                 "spotify_account": self._account if self._spotify[key] else None,
+                 "now_playing": self._track if self._spotify[key] and self._play[key] != "stop" else None,
+                 "error": None}
                 for key in self.cfg.ROOM_KEYS
             ],
             "avr": {"connected": True, "inputs": self.avr.inputs(), "input": self.avr.current_input()},