trackdb: Turn Tracks into GObjects

So they can be returned directly by the ListModel

Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>

trackdb/test_track.py

@@ -1,5 +1,6 @@
 # Copyright 2020 (c) Anna Schumaker.
 from lib import publisher
+from gi.repository import GObject
 from . import tags
 from . import track
 import datetime
@@ -24,6 +25,7 @@ class TestTrack(unittest.TestCase):
         trak = track.Track(1, test_tracks / "01 - Test Track.ogg", self.lib)
         self.assertEqual(trak.trackid, 1)
         self.assertEqual(trak.filepath(), test_tracks / "01 - Test Track.ogg")
+        self.assertIsInstance(trak, GObject.Object)
 
     def test_track_album(self):
         trak = track.Track(1, test_tracks / "01 - Test Track.ogg", self.lib)

trackdb/track.py

@@ -2,10 +2,12 @@
 from lib import metadata
 from lib import publisher
 from . import tags
+from gi.repository import GObject
 import datetime
 
-class Track:
+class Track(GObject.Object):
     def __init__(self, trackid, filepath, library):
+        GObject.Object.__init__(self)
         self.trackid = trackid
         self.path = filepath.relative_to(library.name)
         self.library = library
@@ -54,6 +56,7 @@ class Track:
         return state
 
     def __setstate__(self, state):
+        GObject.Object.__init__(self)
         self.__dict__.update(state)
 
     def __set_tags__(self):