X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2FmatitaGtkMisc.ml;h=a41dbffe373713d3ca3fa5858e215f801afe5a58;hb=890221127070350c2e33aa4685398b03258aa847;hp=553406635aac812e87ba39576f566bbe747f1e08;hpb=e57e808481a6f0a9bd6bd66d6afbfb484ebad2e5;p=helm.git

diff --git a/matita/matitaGtkMisc.ml b/matita/matitaGtkMisc.ml
index 553406635..a41dbffe3 100644
--- a/matita/matitaGtkMisc.ml
+++ b/matita/matitaGtkMisc.ml
@@ -28,16 +28,18 @@
 exception PopupClosed
 open Printf
 
-let wrap_callback f = f
+let wrap_callback0 f = fun _ -> try f () with Not_found -> assert false
+let wrap_callback1 f = fun _ -> try f () with Not_found -> assert false
+let wrap_callback2 f = fun _ -> try f () with Not_found -> assert false
 
 let connect_button (button: #GButton.button) callback =
-  ignore (button#connect#clicked (wrap_callback callback))
+  ignore (button#connect#clicked (wrap_callback0 callback))
 
 let connect_toggle_button (button: #GButton.toggle_button) callback =
-  ignore (button#connect#toggled (wrap_callback callback))
+  ignore (button#connect#toggled (wrap_callback1 callback))
 
 let connect_menu_item (menu_item: #GMenu.menu_item) callback =
-  ignore (menu_item#connect#activate (wrap_callback callback))
+  ignore (menu_item#connect#activate (wrap_callback2 callback))
 
 let connect_key (ev:GObj.event_ops) ?(modifiers = []) ?(stop = false) key
   callback