[gnome-music] notificationspopup: Delete pending notifications when closing

[Marinus Schraal <mschraal src gnome org>]

commit 50392ad66a7f3faf29ae0fbfdb17d57e008cd7c5
Author: Jean Felder <jean felder gmail com>
Date:   Wed Jan 31 11:00:32 2018 +0100

    notificationspopup: Delete pending notifications when closing
    
    Delete all pending songs and playlists when closing Music.
    Closes: #106

 gnomemusic/widgets/notificationspopup.py | 8 ++++++++
 gnomemusic/window.py                     | 1 +
 2 files changed, 9 insertions(+)
---
diff --git a/gnomemusic/widgets/notificationspopup.py b/gnomemusic/widgets/notificationspopup.py
index be16b1f..9aecef6 100644
--- a/gnomemusic/widgets/notificationspopup.py
+++ b/gnomemusic/widgets/notificationspopup.py
@@ -131,6 +131,14 @@ class NotificationsPopup(Gtk.Revealer):
         self._set_visibility(notification, True)
         notification.emit(signal)
 
+    @log
+    def terminate_pending(self):
+        """Terminate all pending playlists notifications"""
+        children = self._grid.get_children()
+        if len(children) > 1:
+            for notification in children[:-1]:
+                self.remove_notification(notification, 'finish-deletion')
+
 
 class LoadingNotification(Gtk.Grid):
     """LoadingNotification displays a loading notification message
diff --git a/gnomemusic/window.py b/gnomemusic/window.py
index cd36f09..c57f3cb 100644
--- a/gnomemusic/window.py
+++ b/gnomemusic/window.py
@@ -392,6 +392,7 @@ class Window(Gtk.ApplicationWindow):
     @log
     def _notify_mode_disconnect(self, data=None):
         self.player.Stop()
+        self.notifications_popup.terminate_pending()
         self._stack.disconnect(self._on_notify_model_id)
 
     @log