(*
 * hello.ml
 * --------
 * Copyright : (c) 2011, Jeremie Dimino <jeremie@dimino.org>
 * Licence   : BSD3
 *
 * This file is a part of Lambda-Term.
 *)

open Lwt_react
open Lwt

lwt () =
  (* Create a thread waiting for escape to be pressed. *)
  let waiter, wakener = wait () in

  (* Create the UI. *)
  let vbox = new LTerm_widget.vbox in
  vbox#add (new LTerm_widget.label "Hello, world!");
  vbox#add (new LTerm_widget.label "Press escape to exit.");
  vbox#on_event (function
                   | LTerm_event.Key { LTerm_key.code = LTerm_key.Escape } -> wakeup wakener (); true
                   | _ -> false);

  (* Run. *)
  lwt term = Lazy.force LTerm.stdout in
  LTerm_widget.run term vbox waiter