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|
open Brr
module PM = Prosemirror
module Js = Js_of_ocaml.Js
(** Create a new editor view
[build_view element state] will create the editor and attach it to [element].
*)
let build_view
: PM.t -> Jstr.t option -> El.t -> PM.View.editor_view Js.t * float
= fun pm page_id editor ->
(* Remove all the elements if any *)
El.set_children editor [];
(* TODO
This could be improved, instead of creating a new schema, just fetch
the node and marks from the plungin *)
let custom_schema =
Plugins.Footnotes.footnote_schema
pm
(PM.SchemaBasic.schema pm) in
(* Recreate the full schema by adding all the nodes and marks from the
plugings *)
let specs = PM.Model.schema_spec
(PM.SchemaList.add_list_nodes
pm
(custom_schema##.spec##.nodes)
(Jstr.v "paragraph block*")
(Some (Jstr.v "block")))
(Some custom_schema##.spec##.marks)
None in
let full_schema = PM.Model.schema pm specs in
let stored_content = State.Storage.load page_id in
(* This variable contains the last update time, either because it is
stored, or because it is the date where we create the first page. *)
let last_backup = Js.Opt.get
stored_content##.date
(fun () -> (new%js Js.date_now)##getTime) in
let props = PM.View.direct_editor_props () in
props##.state := State.state_of_storage pm stored_content full_schema;
(* Add the custom nodes *)
props##.nodeViews := PM.O.init
[| ( "footnote", (Plugins.Footnotes.footnote_view pm))
|];
let view = PM.View.editor_view
pm
editor
props in
view, last_backup
module Store = struct
type t = unit
let apply
: t -> State.t -> State.t
= fun () state ->
let title_element = Document.find_el_by_id G.document (Jstr.v "title") in
let content = Option.map
(fun el -> El.prop (El.Prop.value) el)
title_element in
let new_date = (new%js Js.date_now)##getTime in
let content_obj = object%js
val content = Js.some @@ Jv.Id.to_jv (state.view##.state##toJSON ())
val title = Js.Opt.option content
val date = Js.some new_date
end in
let save = State.Storage.save
content_obj
state.page_id
~check:(fun previous_state ->
Js.Opt.case previous_state##.date
(fun () -> true)
(fun date ->
(* I do not figure how the previous date could be older
than the last backup. It could be either :
- equal (if we are the only one to update it)
- more recent (if the content has been updated elsewhere)
but older shoud be a bug. *)
let is_ok = date <= state.last_backup in
if (not is_ok) then (
let open Console in
log
[ Jstr.v "Last backup date is "
; new%js Js.date_fromTimeValue state.last_backup
; Jstr.v " but date is "
; new%js Js.date_fromTimeValue date] );
is_ok)) in
begin match save with
| Ok true -> { state with last_backup = new_date }
| Ok false ->
Console.(log [Jstr.v "Didn't save"]);
state
| Error other ->
(* TODO In case of error, notify the user *)
Console.(log [Jstr.v "Couldn't save" ; other]);
state
end
end
let app id content =
(* Check the pre-requisite *)
let events_opt = Actions.populate_menu () in
match (Jv.is_none id), (Jv.is_none content), events_opt with
| false, false, Some btn_events ->
let pm = PM.v () in
let editor:El.t = Jv.Id.of_jv id in
(* Load the cache for the given page *)
let page_id = State.Storage.page_id () in
let view, last_backup = build_view pm page_id editor in
let init_state = State.init pm view last_backup page_id in
let app_state = Application.run
~eq:State.eq
(App.update )
init_state
(Note.E.select
[ Brr_note.Evr.on_el Ev.focusout (fun _ ->
(Actions.Event.E
( ()
, (module Store:Actions.Event.Handler with type t = Store.t)))) editor
; Note.E.map (fun ev -> ev) btn_events.Actions.delete
; Note.E.map (fun ev -> ev) btn_events.Actions.add
; Note.E.map (fun v -> v) btn_events.Actions.redirect
]) in
let () =
Note.S.log app_state (fun _ -> ())
|> Note.Logr.hold in
()
| _, _, _ ->
Console.(error [str "No element with id '%s' '%s' found"; id ; content])
let () =
let open Jv in
let editor = obj
[| "attach_prosemirror", (repr app)
|] in
set global "editor" editor
|
