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module Grep = Grep
module Common = Common
open Notty
let content = Grep.get_headlines () |> Grep.parse_headlines
let content_pretty = content |> Grep.pretty_format
let rec headline_screen t (((x, y) as pos), scroll) =
let img =
let dot = I.string A.(fg black) ">" |> I.pad ~l:0 ~t:(y - scroll)
and elements =
Array.mapi
(fun i el -> I.strf ~attr:A.(fg black) "%s" el |> I.pad ~l:2 ~t:i)
(Array.to_seq content_pretty |> Seq.drop scroll |> Array.of_seq)
in
let open I in
Array.fold_left (fun sum el -> el </> sum) dot elements
in
let _, size_y = Common.Term.size t in
Common.Term.image t img;
let content_length = Array.length content_pretty in
let scroll_up () =
let scroll = if y - scroll = 0 then max (scroll - 1) 0 else scroll in
headline_screen t @@ ((x, max (y - 1) 0), scroll)
in
let scroll_down () =
let scroll = if y - scroll >= size_y - 1 then scroll + 1 else scroll in
headline_screen t @@ ((x, min (y + 1) content_length), scroll)
in
match Common.Term.event t with
| `End | `Key (`Escape, []) | `Key (`ASCII 'q', []) | `Key (`ASCII 'C', [ `Ctrl ]) -> ()
| `Mouse (`Press (`Scroll s), _, _) ->
(match s with
| `Down -> scroll_down ()
| `Up -> scroll_up ())
| `Resize _ -> headline_screen t (pos, scroll)
| `Mouse ((`Press _ | `Drag), (_, y), _) ->
headline_screen t ((0, min y content_length), scroll)
| `Key (`ASCII 'j', []) | `Key (`ASCII 'N', [ `Ctrl ]) -> scroll_down ()
| `Key (`ASCII 'k', []) | `Key (`ASCII 'P', [ `Ctrl ]) ->
let scroll = if y - scroll = 0 then max (scroll - 1) 0 else scroll in
headline_screen t @@ ((x, max (y - 1) 0), scroll)
| `Key (`Arrow d, _) ->
(match d with
| `Up -> scroll_up ()
| `Down -> scroll_down ()
| _ -> headline_screen t ((x, y), scroll))
| `Key (`ASCII 'e', []) | `Key (`Enter, []) ->
(* Editor might be set with extra args, in that case we need to separate these *)
let[@warning "-8"] (editor :: args) =
String.split_on_char ' ' (Sys.getenv "EDITOR")
in
let selected_file, _ = Array.get content y in
let full_path_file = Grep.execution_directory ^ "/" ^ selected_file in
let full_args = Array.append (Array.of_list args) [| full_path_file |] in
Common.Term.cursor t (Some (0, 0));
let _ =
Unix.create_process_env
editor
full_args
(Unix.environment ())
Unix.stdin
Unix.stdout
Unix.stderr
in
let rec run_editor () =
match Unix.wait () with
| _, _ ->
Common.Term.cursor t None;
headline_screen t ((x, y), scroll)
(* Capture resizing events *)
| exception Unix.Unix_error (Unix.EINTR, _, _) -> run_editor ()
| exception Unix.Unix_error (_, _, _) -> failwith "ERROR"
in
run_editor ()
| _ -> headline_screen t (pos, scroll)
let start () = headline_screen (Common.Term.create ()) ((0, 0), 0)
|