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|
open Js_of_ocaml
open Brr
module PM = Prosemirror
let create_new_state pm mySchema content =
let module PM = Prosemirror in
let doc = PM.Model.(
DOMParser.parse
(DOMParser.from_schema pm mySchema)
(Jv.Id.of_jv content)) in
let props = PM.State.creation_prop () in
props##.doc := Js.some doc;
props##.plugins := Plugins.default pm mySchema;
PM.State.create
pm
props
let storage_key = (Jstr.v "editor")
let storage = Brr_io.Storage.local G.window
(** Read the state from the local storage, or load the content from the given
element *)
let load_storage
: PM.t -> PM.Model.schema Js.t -> Jv.t -> PM.State.editor_state Js.t
= fun pm schema content ->
let opt_data = Brr_io.Storage.get_item storage storage_key in
match opt_data with
| None -> create_new_state pm schema content
| Some contents ->
(* Try to load from the storage *)
match Json.decode contents with
| Error _ -> create_new_state pm schema content
| Ok json ->
let obj = PM.State.configuration_prop () in
obj##.plugins := Plugins.default pm schema;
obj##.schema := Js.some schema;
PM.State.fromJSON pm obj json
let save_storage
: PM.View.editor_view Js.t -> unit
= fun view ->
let contents = view##.state##toJSON () in
let storage = Brr_io.Storage.local G.window in
Brr_io.Storage.set_item
storage
storage_key
(Json.encode @@ contents)
|> Console.log_if_error ~use:()
let prosemirror id content =
begin match (Jv.is_none id), (Jv.is_none content) with
| false, false ->
let module PM = Prosemirror in
let pm = PM.v () in
let schema = (PM.SchemaBasic.schema pm) in
let schema = Footnotes.footnote_schema pm schema in
Console.(log [ schema ]);
let specs = PM.Model.schema_spec
(PM.SchemaList.add_list_nodes
pm
(schema##.spec##.nodes)
(Jstr.v "paragraph block*")
(Some (Jstr.v "block")))
(Some schema##.spec##.marks)
None in
let mySchema = PM.Model.schema pm specs in
(* Create the initial state *)
let state = load_storage pm mySchema content in
let props = PM.View.direct_editor_props () in
props##.state := state;
(* Each time the state is update, handle the copy *)
props##.dispatchTransaction := Js.wrap_meth_callback @@ (fun view tr ->
let state = view##.state##apply tr in
view##updateState state
);
let view' = (Footnotes.footnote_view pm) in
let nodes = PM.O.init
[| ("footnote", view') |] in
props##.nodeViews := nodes;
let view = PM.View.editor_view
pm
(Jv.Id.of_jv id)
props in
Console.(log [Jstr.v "main view"; view]);
(* Attach an event on focus out *)
let _ = Brr_note.Evr.on_el
(Ev.focusout)
(fun _ -> save_storage view)
(Jv.Id.of_jv id) in
()
| _, _ -> Console.(error [str "No element with id '%s' '%s' found"; id ; content])
end
let () =
let open Jv in
let editor = obj
[| "attach_prosemirror", (repr prosemirror)
|] in
set global "editor" editor
|
