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|
open Brr
module Js = Js_of_ocaml.Js
module PM = Prosemirror
let link_edit : PM.View.editor_view Js.t -> < .. > Js.t =
fun view ->
let popin = El.div [] ~at:At.[ class' (Jstr.v "popin") ] in
El.set_inline_style El.Style.display (Jstr.v "none") popin;
let parent = Jv.(Id.of_jv @@ get (Jv.Id.to_jv view##.dom) "parentNode") in
let () = El.append_children parent [ popin ] in
let hide : unit -> unit =
fun () -> El.set_inline_style El.Style.display (Jstr.v "none") popin
in
let update :
PM.View.editor_view Js.t -> PM.State.editor_state Js.t Js.opt -> unit =
fun view _state_opt ->
let state = view##.state in
Js.Opt.case
(state##.doc##nodeAt view##.state##.selection##._to)
(fun () -> hide ())
(fun node ->
(* Check if we are editing a link *)
match PM.O.get state##.schema##.marks "link" with
| None -> ()
| Some link_type ->
let is_present = link_type##isInSet node##.marks in
Js.Opt.case
is_present
(fun () -> hide ())
(fun mark ->
(* Get the node's bounding position and display the popin *)
let position =
state##.doc##resolve view##.state##.selection##._to
in
let start = position##start Js.null
and end' = position##_end Js.null in
Popin.set_position ~start ~end' view popin;
(* Extract the value from the attribute *)
let attrs = mark##.attrs in
let href_opt = PM.O.get attrs "href" in
let href_value = Option.value ~default:Jstr.empty href_opt in
(* Create the popin content *)
let a = El.a ~at:At.[ href href_value ] [ El.txt href_value ] in
let entry =
Popin.build_field a (fun new_value ->
(* The function is called when the user validate
the change in the popi. We create a new
transaction in the document by replacing the
mark with the new one. *)
if not (Jstr.equal new_value href_value)
then (
(* Create a new attribute object for the mark in
order to keep history safe *)
let attrs' = PM.O.init [| ("href", new_value) |] in
Option.iter
(fun v -> PM.O.set attrs' "title" v)
(PM.O.get attrs "title");
let mark' =
state##.schema##mark_fromType
link_type
(Js.some attrs')
in
(* Create a transaction which update the
mark with the new value *)
view##dispatch
state
##. tr
## (removeMark ~from:start ~to_:end' mark)
## (addMark ~from:start ~to_:end' mark') );
true )
in
El.set_children popin [ entry.field; entry.button ] ) )
and destroy () = El.remove popin in
object%js
val update = Js.wrap_callback update
val destroy = Js.wrap_callback destroy
end
let plugin : PM.t -> PM.State.plugin Js.t =
fun t ->
let state = Jv.get (Jv.Id.to_jv t) "state" in
let params =
object%js
val view = fun view -> link_edit view
end
in
Jv.new' (Jv.get state "Plugin") [| Jv.Id.to_jv params |] |> Jv.Id.of_jv
|
