[dconf-editor] Clean more completely on quit.

[Arnaud Bonatti <arnaudb src gnome org>]

commit 52bd19ba954848105754a083bb810f3ef3d8d247
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Sat Aug 13 19:31:21 2016 +0200

    Clean more completely on quit.

 editor/dconf-editor.vala |   17 +++++++++++------
 editor/dconf-window.vala |    2 +-
 2 files changed, 12 insertions(+), 7 deletions(-)
---
diff --git a/editor/dconf-editor.vala b/editor/dconf-editor.vala
index 95a4b81..baf5d3e 100644
--- a/editor/dconf-editor.vala
+++ b/editor/dconf-editor.vala
@@ -114,12 +114,7 @@ class ConfigurationEditor : Gtk.Application
         clipboard.set_text (text, text.length);
 
         // notification
-        if (notification_number > 0)
-        {
-            withdraw_notification ("copy");         // TODO needed, report bug: Shell cancels previous 
notification of the same name, instead of replacing it
-            Source.remove (notification_number);
-            notification_number = 0;
-        }
+        clean_copy_notification ();
 
         notification_number = Timeout.add_seconds (30, () => {
                 withdraw_notification ("copy");
@@ -131,6 +126,16 @@ class ConfigurationEditor : Gtk.Application
         send_notification ("copy", notification);
     }
 
+    public void clean_copy_notification ()
+    {
+        if (notification_number > 0)
+        {
+            withdraw_notification ("copy");         // TODO needed, report bug: Shell cancels previous 
notification of the same name, instead of replacing it
+            Source.remove (notification_number);
+            notification_number = 0;
+        }
+    }
+
     /*\
     * * App-menu callbacks
     \*/
diff --git a/editor/dconf-window.vala b/editor/dconf-window.vala
index 930423d..f00de84 100644
--- a/editor/dconf-window.vala
+++ b/editor/dconf-window.vala
@@ -190,7 +190,7 @@ class DConfWindow : ApplicationWindow
     [GtkCallback]
     private void on_destroy ()
     {
-        get_application ().withdraw_notification ("copy");
+        ((ConfigurationEditor) get_application ()).clean_copy_notification ();
 
         settings.disconnect (behaviour_changed_handler);
         settings.disconnect (theme_changed_handler);