+let is_var_uri s =
+ try
+ String.sub s (String.length s - 4) 4 = ".var"
+ with Invalid_argument _ -> false
+
+let non p x = not (p x)
+
+class type gui =
+ object
+ method newUriDialog: unit -> MatitaGeneratedGui.uriChoiceDialog
+ method newConfirmationDialog: unit -> MatitaGeneratedGui.confirmationDialog
+ method newEmptyDialog: unit -> MatitaGeneratedGui.emptyDialog
+ end
+
+exception Cancel
+
+let interactive_user_uri_choice
+ ~(gui:#gui) ~(selection_mode:[`SINGLE|`MULTIPLE]) ?(title = "")
+ ?(msg = "") ?(nonvars_button=false) uris
+=
+ let nonvars_uris = lazy (List.filter (non is_var_uri) uris) in
+ if (selection_mode <> `SINGLE) &&
+ (Helm_registry.get_bool "matita.auto_disambiguation")
+ then
+ Lazy.force nonvars_uris
+ else begin
+ let dialog = gui#newUriDialog () in
+ dialog#uriChoiceTreeView#selection#set_mode
+ (selection_mode :> Gtk.Tags.selection_mode);
+ let model = new stringListModel dialog#uriChoiceTreeView in
+ let choices = ref None in
+ let nonvars = ref false in
+ dialog#uriChoiceDialog#set_title title;
+ dialog#uriChoiceLabel#set_text msg;
+ List.iter model#easy_append uris;
+ dialog#uriChoiceConstantsButton#misc#set_sensitive nonvars_button;
+ let return v =
+ choices := v;
+ dialog#uriChoiceDialog#destroy ();
+ GMain.Main.quit ()
+ in
+ ignore (dialog#uriChoiceDialog#event#connect#delete (fun _ -> true));
+ ignore (dialog#uriChoiceConstantsButton#connect#clicked (fun _ ->
+ return (Some (Lazy.force nonvars_uris))));
+ ignore (dialog#uriChoiceAutoButton#connect#clicked (fun _ ->
+ Helm_registry.set_bool "matita.auto_disambiguation" true;
+ return (Some (Lazy.force nonvars_uris))));
+ ignore (dialog#uriChoiceSelectedButton#connect#clicked (fun _ ->
+ match model#easy_selection () with
+ | [] -> ()
+ | uris -> return (Some uris)));
+ ignore (dialog#uriChoiceAbortButton#connect#clicked (fun _ -> return None));
+ dialog#uriChoiceDialog#show ();
+ GtkThread.main ();
+ (match !choices with
+ | None -> raise Cancel
+ | Some uris -> uris)
+ end
+
+let interactive_interp_choice ~(gui:#gui) choices =
+ (* TODO Zack implement interactive_interp_choice *)
+ MatitaTypes.warning
+ "'interactive_interp_choice' not implemented: returning 1st interpretation";
+ [0]
+
+let ask_confirmation ~(gui:#gui) ?(title = "") ?(msg = "") () =
+ let dialog = gui#newConfirmationDialog () in
+ dialog#confirmationDialog#set_title title;
+ dialog#confirmationDialogLabel#set_label msg;
+ let result = ref None in
+ let return r _ =
+ result := Some r;
+ dialog#confirmationDialog#destroy ();
+ GMain.Main.quit ()
+ in
+ ignore (dialog#confirmationDialog#event#connect#delete (fun _ -> true));
+ ignore (dialog#confirmationDialogOkButton#connect#clicked (return true));
+ ignore (dialog#confirmationDialogCancelButton#connect#clicked (return false));
+ dialog#confirmationDialog#show ();
+ GtkThread.main ();
+ (match !result with None -> assert false | Some r -> r)
+
+let ask_text ~(gui:#gui) ?(title = "") ?(msg = "") ?(multiline = false) () =
+ let dialog = gui#newEmptyDialog () in
+ dialog#emptyDialog#set_title title;
+ dialog#emptyDialogLabel#set_label msg;
+ let result = ref None in
+ let return r =
+ result := r;
+ dialog#emptyDialog#destroy ();
+ GMain.Main.quit ()
+ in
+ ignore (dialog#emptyDialog#event#connect#delete (fun _ -> true));
+ if multiline then begin (* multiline input required: use a TextView widget *)
+ let win =
+ GBin.scrolled_window ~width:400 ~height:150 ~hpolicy:`NEVER
+ ~vpolicy:`ALWAYS ~packing:dialog#emptyDialogVBox#add ()
+ in
+ let view = GText.view ~wrap_mode:`CHAR ~packing:win#add () in
+ view#misc#grab_focus ();
+ ignore (dialog#emptyDialogOkButton#connect#clicked (fun _ ->
+ return (Some (view#buffer#get_text ()))))
+ end else begin (* monoline input required: use a TextEntry widget *)
+ let entry = GEdit.entry ~packing:dialog#emptyDialogVBox#add () in
+ entry#misc#grab_focus ();
+ ignore (dialog#emptyDialogOkButton#connect#clicked (fun _ ->
+ return (Some entry#text)))
+ end;
+ ignore (dialog#emptyDialogCancelButton#connect#clicked (fun _ ->return None));
+ dialog#emptyDialog#show ();
+ GtkThread.main ();
+ (match !result with None -> raise Cancel | Some r -> r)
+