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|
open Js_of_ocaml
open Brr
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 := Js.some (PM.example_setup pm mySchema);
PM.State.create
pm
props
let storage_key = (Jstr.v "editor")
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 specs = PM.Model.schema_spec
(PM.SchemaList.add_list_nodes
pm
((PM.SchemaBasic.schema pm)##.spec##.nodes)
(Jstr.v "paragraph block*")
(Some (Jstr.v "block")))
(Some (PM.SchemaBasic.schema pm)##.spec##.marks)
None in
let mySchema = PM.Model.schema pm specs in
(* Create the initial state *)
let storage = Brr_io.Storage.local G.window in
let opt_data = Brr_io.Storage.get_item storage storage_key in
let state = match opt_data with
| None -> create_new_state pm mySchema content
| Some contents ->
(* Try to load from the storage *)
begin match Json.decode contents with
| Error _ -> create_new_state pm mySchema content
| Ok json ->
Console.(log [Jstr.v "Loading json"]);
let history = PM.History.(history pm (history_prop ()) ) in
Console.(log [history]);
let _ = history in
let obj = PM.State.configuration_prop () in
obj##.plugins := Js.some (PM.example_setup pm mySchema);
obj##.schema := Js.some mySchema;
PM.State.fromJSON pm obj json
end
in
let props = PM.View.direct_editor_props () in
props##.dispatchTransaction := (Js.wrap_meth_callback (fun view transaction ->
Console.(log [ Jstr.v "Document size went from"
; transaction##.before##.content##.size ]);
let state = view##.state##apply transaction in
view##updateState state
));
props##.state := state;
let view = PM.View.editor_view
pm
(Jv.Id.of_jv id)
props in
view##setProps props;
(* Attach an event on focus out *)
let _out_event = Brr_note.Evr.on_el
(Ev.focusout)
(fun _ ->
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:()
)
(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
|
