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(* Js_of_ocaml library
* http://www.ocsigen.org/js_of_ocaml/
* Copyright (C) 2015 OCamlPro: Grégoire Henry, Çağdaş Bozman.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, with linking exception;
* either version 2.1 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*)
open Js
open Dom_html
open! Import
class type ['a, 'b] worker = object ('self)
inherit eventTarget
method onerror : ('self t, errorEvent t) event_listener writeonly_prop
method onmessage : ('self t, 'b messageEvent t) event_listener writeonly_prop
method postMessage : 'a -> unit meth
method terminate : unit meth
end
and errorEvent = object
inherit event
method message : js_string t readonly_prop
method filename : js_string t readonly_prop
method lineno : int readonly_prop
method colno : int readonly_prop
method error : Unsafe.any readonly_prop
end
and ['a] messageEvent = object
inherit event
method data : 'a readonly_prop
end
let worker = Unsafe.global##._Worker
let create script = new%js worker (string script)
let import_scripts scripts : unit =
if not (Js.Optdef.test Unsafe.global##.importScripts)
then invalid_arg "Worker.import_scripts is undefined";
Unsafe.fun_call
Unsafe.global##.importScripts
(Array.map (fun s -> Unsafe.inject (string s)) (Array.of_list scripts))
let set_onmessage handler =
if not (Js.Optdef.test Unsafe.global##.onmessage)
then invalid_arg "Worker.onmessage is undefined";
let js_handler (ev : 'a messageEvent Js.t) = handler ev##.data in
Unsafe.global##.onmessage := wrap_callback js_handler
let post_message msg =
if not (Js.Optdef.test Unsafe.global##.postMessage)
then invalid_arg "Worker.onmessage is undefined";
Unsafe.global##postMessage msg
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