[gnome-music/wip/mschraal/playlists-fixes: 2/3] grltrackerplaylists: Bind playlists songs to main (!HACK!)

[Marinus Schraal <mschraal src gnome org>]

commit 9f63c134f1d2034b01bceafacdcc066dad645ff8
Author: Marinus Schraal <mschraal gnome org>
Date:   Fri Feb 21 12:18:09 2020 +0100

    grltrackerplaylists: Bind playlists songs to main  (!HACK!)

 gnomemusic/grilowrappers/grltrackerplaylists.py | 28 +++++++++++++++++++++----
 gnomemusic/grilowrappers/grltrackerwrapper.py   | 10 ++++++---
 2 files changed, 31 insertions(+), 7 deletions(-)
---
diff --git a/gnomemusic/grilowrappers/grltrackerplaylists.py b/gnomemusic/grilowrappers/grltrackerplaylists.py
index 3aa09f2a..c5f2b2bf 100644
--- a/gnomemusic/grilowrappers/grltrackerplaylists.py
+++ b/gnomemusic/grilowrappers/grltrackerplaylists.py
@@ -55,7 +55,8 @@ class GrlTrackerPlaylists(GObject.GObject):
     ]
 
     def __init__(
-            self, source, coremodel, application, grilo, tracker_wrapper):
+            self, source, coremodel, application, grilo, tracker_wrapper,
+            songs_hash):
         """Initialize GrlTrackerPlaylists.
 
         :param Grl.TrackerSource source: The Tracker source to wrap
@@ -78,6 +79,7 @@ class GrlTrackerPlaylists(GObject.GObject):
         self._model_filter = self._coremodel.props.playlists_filter
         self._user_model_filter = self._coremodel.props.user_playlists_filter
         self._pls_todelete = []
+        self._songs_hash = songs_hash
         self._tracker = tracker_wrapper.props.tracker
         self._tracker_wrapper = tracker_wrapper
         self._window = application.props.window
@@ -95,7 +97,8 @@ class GrlTrackerPlaylists(GObject.GObject):
             "source": self._source,
             "application": self._application,
             "grilo": self._grilo,
-            "tracker_wrapper": self._tracker_wrapper
+            "tracker_wrapper": self._tracker_wrapper,
+            "songs_hash": self._songs_hash
         }
 
         smart_playlists = {
@@ -149,7 +152,7 @@ class GrlTrackerPlaylists(GObject.GObject):
         playlist = Playlist(
             media=media, source=self._source, coremodel=self._coremodel,
             application=self._application, grilo=self._grilo,
-            tracker_wrapper=self._tracker_wrapper)
+            tracker_wrapper=self._tracker_wrapper, songs_hash=self._songs_hash)
 
         self._model.append(playlist)
         callback = data
@@ -306,7 +309,7 @@ class Playlist(GObject.GObject):
     def __init__(
             self, media=None, query=None, tag_text=None, source=None,
             coremodel=None, application=None, grilo=None,
-            tracker_wrapper=None):
+            tracker_wrapper=None, songs_hash=None):
 
         super().__init__()
         """Initialize a playlist
@@ -338,6 +341,7 @@ class Playlist(GObject.GObject):
         self._coreselection = application.props.coreselection
         self._grilo = grilo
         self._log = application.props.log
+        self._songs_hash = songs_hash
         self._tracker = tracker_wrapper.props.tracker
         self._tracker_wrapper = tracker_wrapper
         self._window = application.props.window
@@ -412,6 +416,7 @@ class Playlist(GObject.GObject):
                 return
 
             coresong = CoreSong(media, self._coreselection, self._grilo)
+            self._bind_to_main_song(coresong)
             if coresong not in self._songs_todelete:
                 self._model.append(coresong)
 
@@ -422,6 +427,18 @@ class Playlist(GObject.GObject):
         self._source.query(
             query, self.METADATA_KEYS, options, _add_to_playlist_cb, None)
 
+    def _bind_to_main_song(self, coresong):
+        main_coresong = self._songs_hash[coresong.props.media.get_id()]
+
+        properties = [
+            "album", "album_disc_number", "artist", "duration", "media",
+            "grlid", "play_count", "state", "title", "track_number", "url",
+            "validation", "favorite", "selected"]
+
+        for prop in properties:
+            main_coresong.bind_property(
+                prop, coresong, prop, GObject.BindingFlags.SYNC_CREATE)
+
     @GObject.Property(type=str, default=None)
     def title(self):
         """Playlist title
@@ -584,6 +601,7 @@ class Playlist(GObject.GObject):
                 return
 
             coresong = CoreSong(media, self._coreselection, self._grilo)
+            self._bind_to_main_song(coresong)
             if coresong not in self._songs_todelete:
                 self._model.append(coresong)
 
@@ -734,6 +752,7 @@ class SmartPlaylist(Playlist):
                     return
 
                 coresong = CoreSong(media, self._coreselection, self._grilo)
+                self._bind_to_main_song(coresong)
                 self._model.append(coresong)
 
             options = self._fast_options.copy()
@@ -785,6 +804,7 @@ class SmartPlaylist(Playlist):
         for idx, media in enumerate(new_model_medias):
             if media.get_id() not in current_models_ids:
                 coresong = CoreSong(media, self._coreselection, self._grilo)
+                self._bind_to_main_song(coresong)
                 self._model.append(coresong)
                 self.props.count += 1
 
diff --git a/gnomemusic/grilowrappers/grltrackerwrapper.py b/gnomemusic/grilowrappers/grltrackerwrapper.py
index 0e3b559a..75712335 100644
--- a/gnomemusic/grilowrappers/grltrackerwrapper.py
+++ b/gnomemusic/grilowrappers/grltrackerwrapper.py
@@ -74,6 +74,7 @@ class GrlTrackerWrapper(GObject.GObject):
         """
         super().__init__()
 
+        self._application = application
         self._coremodel = coremodel
         self._coreselection = application.props.coreselection
         self._grilo = grilo
@@ -90,6 +91,7 @@ class GrlTrackerWrapper(GObject.GObject):
         self._artist_search_model = self._coremodel.props.artists_search
         self._batch_changed_media_ids = {}
         self._content_changed_timeout = None
+        self._tracker_playlists = None
         self._tracker_wrapper = tracker_wrapper
         self._window = application.props.window
 
@@ -108,9 +110,6 @@ class GrlTrackerWrapper(GObject.GObject):
         self._initial_albums_fill(self.props.source)
         self._initial_artists_fill(self.props.source)
 
-        self._tracker_playlists = GrlTrackerPlaylists(
-            source, coremodel, application, grilo, tracker_wrapper)
-
     @GObject.Property(type=Grl.Source, default=None)
     def source(self):
         return self._source
@@ -383,6 +382,11 @@ class GrlTrackerWrapper(GObject.GObject):
             if not media:
                 self._model.splice(self._model.get_n_items(), 0, songs_added)
                 self._window.notifications_popup.pop_loading()
+
+                self._tracker_playlists = GrlTrackerPlaylists(
+                    self.props.source, self._coremodel, self._application,
+                    self._grilo, self._tracker_wrapper, self._hash)
+
                 return
 
             song = CoreSong(media, self._coreselection, self._grilo)