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open Js_of_ocaml
module PM = Prosemirror
(** Commands *)
let change_level
: PM.t -> PM.Model.resolved_pos Js.t -> int -> (int -> bool) -> PM.Commands.t
= fun pm res incr pred state dispatch ->
let parent = res##.parent in
let attributes = parent##.attrs in
let current_level = if Jv.is_none attributes##.level then
0
else
attributes##.level in
let t, props = match pred current_level with
| false ->
( PM.O.get state##.schema##.nodes "heading"
, Js.some (object%js
val level = current_level + incr
end))
| true ->
( PM.O.get state##.schema##.nodes "paragraph"
, Js.null) in
match t with
| None -> Js._false
| Some t ->
PM.Commands.set_block_type pm t props state dispatch
(** Increase the title level by one when pressing # at the begining of a line *)
let handle_sharp pm state dispatch =
let res = PM.State.selection_to (state##.selection) in
match Js.Opt.to_option res##.nodeBefore with
| Some _ -> Js._false
| None -> (* Line start *)
begin match Jstr.to_string res##.parent##._type##.name with
| "heading" ->
change_level pm res 1 (fun x -> x > 5) state dispatch
| "paragraph" ->
begin match PM.O.get state##.schema##.nodes "heading" with
| None -> Js._false
| Some t ->
let props = Js.some (object%js
val level = 1
end) in
PM.Commands.set_block_type pm t props state dispatch
end
| _ -> Js._false
end
let handle_backspace pm state dispatch =
let res = PM.State.selection_to (state##.selection) in
match Js.Opt.to_option res##.nodeBefore with
| Some _ -> Js._false
| None -> (* Line start *)
begin match Jstr.to_string res##.parent##._type##.name with
| "heading" -> change_level pm res (-1) (fun x -> x <= 1) state dispatch
| _ -> Js._false
end
let toggle_mark
: Js.regExp Js.t -> PM.t -> string -> PM.InputRule.input_rule Js.t
= fun regExp pm mark_type_name ->
PM.InputRule.create pm
regExp
~fn:(Js.wrap_callback @@ fun (state:PM.State.editor_state Js.t) _ ~from ~to_ ->
match PM.O.get state##.schema##.marks mark_type_name with
| None -> Js.null
| Some mark_type ->
let m = state##.schema##mark_fromType mark_type Js.null in
(* Delete the markup code *)
let tr = (state##.tr)##delete ~from ~to_ in
(* Check if the mark is active at the position *)
let present = Js.Opt.bind
(PM.State.cursor (tr##.selection))
(fun resolved ->
Js.Opt.map
(mark_type##isInSet (resolved##marks ()))
(fun _ -> resolved)
) in
Js.Opt.case present
(fun () ->
let tr = tr##addStoredMark m in
Js.some @@ tr)
(fun _resolved ->
let tr = tr##removeStoredMark_mark m in
Js.some tr))
let input_rule pm =
let bold =
toggle_mark
(new%js Js.regExp (Js.string "\\*\\*$"))
pm
"strong"
and em =
toggle_mark
(new%js Js.regExp (Js.string "//$"))
pm
"em" in
PM.InputRule.to_plugin pm
(Js.array [| bold; em |])
let default pm schema =
(** Load the history plugin *)
let _ = PM.History.(history pm (history_prop ()) ) in
let props = PM.Example.options schema in
props##.menuBar := Js.some Js._true;
props##.floatingMenu := Js.some Js._true;
props##.menuContent := (Footnotes.build_menu pm schema)##.fullMenu;
let setup = PM.Example.example_setup pm props in
let keymaps =
PM.Keymap.keymap pm
[| "Backspace", (handle_backspace pm)
; "#", (handle_sharp pm)
|] in
(* Add the custom keymaps in the list *)
let _ = setup##unshift keymaps in
let _ = setup##push (input_rule pm) in
let _ = setup##push (Tooltip.bold_plugin pm) in
let _ = setup##push (Link_editor.plugin pm) in
Js.some setup
|
