[gnome-music/wip/jfelder/playlist-improvements: 5/5] playlistsview: Add a separator before the first user playlist




commit 4f7668eeb51e3d37049bf5463793507d1c9266c8
Author: Jean Felder <jfelder src gnome org>
Date:   Tue Jun 29 13:28:27 2021 +0200

    playlistsview: Add a separator before the first user playlist
    
    Related: #446

 gnomemusic/views/playlistsview.py | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
---
diff --git a/gnomemusic/views/playlistsview.py b/gnomemusic/views/playlistsview.py
index 4a6ccf0b7..4c1a2f782 100644
--- a/gnomemusic/views/playlistsview.py
+++ b/gnomemusic/views/playlistsview.py
@@ -23,6 +23,7 @@
 # delete this exception statement from your version.
 
 from gettext import gettext as _
+from typing import Optional
 
 from gi.repository import GObject, Gtk
 
@@ -64,6 +65,7 @@ class PlaylistsView(Gtk.Paned):
         self._playlist_widget = PlaylistsWidget(application, self)
         self.add(self._playlist_widget)
 
+        self._sidebar.set_header_func(self._sidebar_header_func)
         self._sidebar.bind_model(self._model, self._add_playlist_to_sidebar)
 
         self._coremodel.connect(
@@ -72,6 +74,20 @@ class PlaylistsView(Gtk.Paned):
         self._model.connect("items-changed", self._on_playlists_model_changed)
         self._on_playlists_model_changed(self._model, 0, 0, 0)
 
+    def _sidebar_header_func(
+            self, row: Gtk.ListBoxRow,
+            before: Optional[Gtk.ListBoxRow]) -> None:
+        if (before
+                and before.props.playlist.props.is_smart
+                and not row.props.playlist.props.is_smart):
+            separator = Gtk.Separator(orientation=Gtk.Orientation.HORIZONTAL)
+            separator.props.height_request = 2
+            separator.props.margin_end = 16
+            separator.props.margin_start = 16
+            row.set_header(separator)
+        else:
+            row.set_header(None)
+
     def _add_playlist_to_sidebar(self, playlist):
         """Add a playlist to sidebar
 


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