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(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *)
(* <O___,, * (see CREDITS file for the list of authors) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(* * (see LICENSE file for the text of the license) *)
(************************************************************************)
class type message_views_router = object
method route : int -> Wg_MessageView.message_view
method default_route : Wg_MessageView.message_view
method has_selection : bool
method get_selected_text : string
method register_route : int -> Wg_MessageView.message_view -> unit
method delete_route : int -> unit
end
let message_views ~route_0 : message_views_router =
let route_table = Hashtbl.create 17 in
let () = Hashtbl.add route_table 0 route_0 in
object
method route i =
try Hashtbl.find route_table i
with Not_found ->
(* at least the message will be printed somewhere*)
Hashtbl.find route_table 0
method default_route = route_0
method register_route i mv = Hashtbl.add route_table i mv
method delete_route i = Hashtbl.remove route_table i
method has_selection =
Hashtbl.fold (fun _ v -> (||) v#has_selection) route_table false
method get_selected_text =
Option.default ""
(Hashtbl.fold (fun _ v acc ->
if v#has_selection then Some v#get_selected_text else acc)
route_table None)
end
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