[gnome-disk-utility] about_dialog: Use response to clear references

[Kai Lüke <kailueke src gnome org>]

commit 6fbebefbc62a5d2eef0d8f2c21bc986d6b739211
Author: Maximiliano Sandoval R <msandova gnome org>
Date:   Tue Oct 12 11:39:35 2021 +0200

    about_dialog: Use response to clear references

 src/disks/gduapplication.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)
---
diff --git a/src/disks/gduapplication.c b/src/disks/gduapplication.c
index 152ca2c7..9689aebc 100644
--- a/src/disks/gduapplication.c
+++ b/src/disks/gduapplication.c
@@ -321,6 +321,12 @@ shortcuts_activated (GSimpleAction *action,
   gtk_widget_show_all (dialog);
 }
 
+static void
+on_about_dialog_response (GtkDialog *dialog)
+{
+  gtk_widget_destroy (GTK_WIDGET (dialog));
+}
+
 static void
 about_activated (GSimpleAction *action,
                  GVariant      *parameter,
@@ -347,13 +353,9 @@ about_activated (GSimpleAction *action,
   g_free (s);
 
   gtk_window_set_transient_for (GTK_WINDOW (dialog), GTK_WINDOW (app->window));
-  gtk_dialog_set_default_response (GTK_DIALOG (dialog), GTK_RESPONSE_OK);
   gtk_widget_show_all (dialog);
-  g_object_ref (dialog);
-  gtk_dialog_run (GTK_DIALOG (dialog));
-  gtk_widget_hide (dialog);
-  gtk_widget_destroy (dialog);
-  g_object_unref (dialog);
+  g_signal_connect (dialog, "response", on_about_dialog_response, NULL);
+  gtk_window_present (GTK_WINDOW (dialog));
 }
 
 static void