[gnome-music/wip/mschraal/assorted-cleanups] playlistdialog: Pass application to init

[Marinus Schraal <mschraal src gnome org>]

commit 68aa90467df2afc9f8f5d8415d8fd8cccc027ff6
Author: Marinus Schraal <mschraal gnome org>
Date:   Thu Mar 26 16:54:47 2020 +0100

    playlistdialog: Pass application to init

 gnomemusic/widgets/playlistdialog.py  | 16 ++++++++++------
 gnomemusic/widgets/playlistswidget.py |  3 ++-
 gnomemusic/window.py                  |  3 ++-
 3 files changed, 14 insertions(+), 8 deletions(-)
---
diff --git a/gnomemusic/widgets/playlistdialog.py b/gnomemusic/widgets/playlistdialog.py
index 10a8f13b..2c67defb 100644
--- a/gnomemusic/widgets/playlistdialog.py
+++ b/gnomemusic/widgets/playlistdialog.py
@@ -48,21 +48,25 @@ class PlaylistDialog(Gtk.Dialog):
     _first_playlist_button = Gtk.Template.Child()
     _first_playlist_entry = Gtk.Template.Child()
 
-    def __init__(self, parent):
+    def __init__(self, application):
+        """Initialize PlaylistDialog
+
+        :param Application application: The application object
+        """
         super().__init__()
 
+        self._coregrilo = application.props.coregrilo
+
         self._add_playlist_button = None
         self._add_playlist_entry = None
 
-        self.props.transient_for = parent
         self.set_titlebar(self._title_bar)
 
         self._user_playlists_available = False
-        self._coremodel = parent._app.props.coremodel
-        self._coregrilo = parent._app.props.coregrilo
+
+        coremodel = application.props.coremodel
         self._listbox.bind_model(
-            self._coremodel.props.user_playlists_sort,
-            self._create_playlist_row)
+            coremodel.props.user_playlists_sort, self._create_playlist_row)
 
         self._set_view()
 
diff --git a/gnomemusic/widgets/playlistswidget.py b/gnomemusic/widgets/playlistswidget.py
index cd71a1ae..084b42e7 100644
--- a/gnomemusic/widgets/playlistswidget.py
+++ b/gnomemusic/widgets/playlistswidget.py
@@ -160,7 +160,8 @@ class PlaylistsWidget(Gtk.Box):
         song_widget = selected_row.get_child()
         coresong = song_widget.props.coresong
 
-        playlist_dialog = PlaylistDialog(self._window)
+        playlist_dialog = PlaylistDialog(self._application)
+        playlist_dialog.props.transient_for = self._window
         if playlist_dialog.run() == Gtk.ResponseType.ACCEPT:
             playlist = playlist_dialog.props.selected_playlist
             playlist.add_songs([coresong])
diff --git a/gnomemusic/window.py b/gnomemusic/window.py
index be58acaf..a88c29ec 100644
--- a/gnomemusic/window.py
+++ b/gnomemusic/window.py
@@ -461,7 +461,8 @@ class Window(Gtk.ApplicationWindow):
         if len(selected_songs) < 1:
             return
 
-        playlist_dialog = PlaylistDialog(self)
+        playlist_dialog = PlaylistDialog(self._app)
+        playlist_dialog.props.transient_for = self
         if playlist_dialog.run() == Gtk.ResponseType.ACCEPT:
             playlist = playlist_dialog.props.selected_playlist
             playlist.add_songs(selected_songs)