+
+static void
+on_validity_change (GtkWidget *toplevel, gboolean valid, gpointer data)
+{
+ PsppireButtonBox *bb = data;
+
+ /* Set the sensitivity of all the 'executive order' buttons */
+ gtk_widget_set_sensitive (GTK_WIDGET (bb->button[PSPPIRE_BUTTON_OK]), valid);
+ gtk_widget_set_sensitive (GTK_WIDGET (bb->button[PSPPIRE_BUTTON_PASTE]), valid);
+ gtk_widget_set_sensitive (GTK_WIDGET (bb->button[PSPPIRE_BUTTON_GOTO]), valid);
+ gtk_widget_set_sensitive (GTK_WIDGET (bb->button[PSPPIRE_BUTTON_CONTINUE]), valid);
+}
+
+static void
+on_realize (GtkWidget *buttonbox, gpointer data)
+{
+ GtkWidget *toplevel = gtk_widget_get_toplevel (buttonbox);
+
+ if ( PSPPIRE_IS_DIALOG (toplevel))
+ {
+ g_signal_connect (toplevel, "validity-changed",
+ G_CALLBACK (on_validity_change), buttonbox);
+ }
+}
+