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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
|
