[grilo] test-ui: Fix crasher on exit

[Juan A. Suarez Romero <jasuarez src gnome org>]

commit 4f68bcff087ad0a073a86fbbeaec88a1dae2d4f3
Author: Bastien Nocera <hadess hadess net>
Date:   Tue Feb 18 16:46:21 2014 +0100

    test-ui: Fix crasher on exit
    
    The test UI was crashing because we left closing through the
    "Close" button destroy the window, which left all the pointers
    dangling.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=724658

 tools/grilo-test-ui/main.c |   14 ++++++++++++--
 1 files changed, 12 insertions(+), 2 deletions(-)
---
diff --git a/tools/grilo-test-ui/main.c b/tools/grilo-test-ui/main.c
index 698e367..779360d 100644
--- a/tools/grilo-test-ui/main.c
+++ b/tools/grilo-test-ui/main.c
@@ -1821,6 +1821,16 @@ options_setup (void)
   grl_operation_options_set_flags (default_resolve_options, RESOLVE_FLAGS);
 }
 
+static gboolean
+delete_event_cb (GtkWidget *widget,
+                GdkEvent  *event,
+                gpointer   user_data)
+{
+  gtk_widget_hide (widget);
+  gtk_main_quit ();
+  return TRUE;
+}
+
 static void
 ui_setup (void)
 {
@@ -1831,8 +1841,8 @@ ui_setup (void)
   view->window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
   gtk_window_set_title (GTK_WINDOW (view->window), WINDOW_TITLE);
   gtk_window_resize (GTK_WINDOW (view->window), 600, 400);
-  g_signal_connect (G_OBJECT (view->window), "destroy",
-                    G_CALLBACK (gtk_main_quit), NULL);
+  g_signal_connect (G_OBJECT (view->window), "delete-event",
+                    G_CALLBACK (delete_event_cb), NULL);
 
   GtkActionGroup *actions = gtk_action_group_new ("actions");
   gtk_action_group_add_actions (actions, entries, G_N_ELEMENTS (entries), NULL);