(* Js_of_ocaml library
 * http://www.ocsigen.org/js_of_ocaml/
 * Copyright (C) 2015 Stéphane Legrand
 *
 * 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! Import

type positionErrorCode

type watchId

class type coordinates = object
  method latitude : Js.number_t Js.readonly_prop

  method longitude : Js.number_t Js.readonly_prop

  method altitude : Js.number_t Js.opt Js.readonly_prop

  method accuracy : Js.number_t Js.readonly_prop

  method altitudeAccuracy : Js.number_t Js.opt Js.readonly_prop

  method heading : Js.number_t Js.opt Js.readonly_prop

  method speed : Js.number_t Js.opt Js.readonly_prop
end

class type position = object
  method coords : coordinates Js.t Js.readonly_prop

  method timestamp : Js.date Js.t Js.readonly_prop
end

class type positionOptions = object
  method enableHighAccuracy : bool Js.writeonly_prop

  method timeout : int Js.writeonly_prop

  method maximumAge : int Js.writeonly_prop
end

class type positionError = object
  method _PERMISSION_DENIED_ : positionErrorCode Js.readonly_prop

  method _POSITION_UNAVAILABLE_ : positionErrorCode Js.readonly_prop

  method _TIMEOUT : positionErrorCode Js.readonly_prop

  method code : positionErrorCode Js.readonly_prop

  method message : Js.js_string Js.t Js.readonly_prop
end

class type geolocation = object
  method getCurrentPosition :
       (position Js.t -> unit) Js.callback
    -> (positionError Js.t -> unit) Js.callback
    -> positionOptions Js.t
    -> unit Js.meth

  method watchPosition :
       (position Js.t -> unit) Js.callback
    -> (positionError Js.t -> unit) Js.callback
    -> positionOptions Js.t
    -> watchId Js.meth

  method clearWatch : watchId -> unit Js.meth
end

let empty_position_options () = Js.Unsafe.obj [||]

let geolocation =
  let x = Js.Unsafe.global##.navigator in
  if Js.Optdef.test x then x##.geolocation else x (* undefined *)

let is_supported () = Js.Optdef.test geolocation
