Error occurs when changing selected item while preview is running.

[tennashi]

Warning: I will close the issue without the minimal init.vim and the
reproduction instructions.

Problems summary

Changing the selected item in the preview window when the command specified by TerminalPreviewer has not finished raises E948.

function <lambda>11[1]..<SNR>33_do_auto_action[13]..ddu#ui#ff#do_action[17]..ddu#ui_action[1]..ddu#_request[22]..denops#request[1].
.denops#server#request[4]..denops#_internal#server#chan#request[4]..denops#_internal#rpc#vim#request[3]..function <lambda>11[1]..<S
NR>33_do_auto_action[13]..ddu#ui#ff#do_action[17]..ddu#ui_action[1]..ddu#_request[22]..denops#request[1]..denops#server#request[4].
.denops#_internal#server#chan#request[4]..denops#_internal#rpc#vim#request の処理中にエラーが検出されました:
行    3:
E605: 例外が捕捉されませんでした: Error: Failed to call 'uiAction' with ["default","preview",{}]: BatchError: Vim(enew):E948: ジョ>
ブはまだ実行中です (! を追加でジョブを終了)^@function <lambda>11[1]..<SNR>33_do_auto_action[13]..ddu#ui#ff#do_action[17]..ddu#ui_ac
tion[1]..ddu#_request[22]..denops#request[1]..denops#server#request[4]..denops#_internal#server#chan#request[4]..denops#_internal#r
pc#vim#request[1]..denops#api#vim#batch[4]..denops#api#cmd, 行 2^@    at DenopsImpl.batch (file:///home/tennashi/src/github.com/vim
-denops/denops.vim/denops/@denops-private/impl.ts:55:13)^@    at async batch (https://deno.land/x/denops_std@v4.0.0/batch/batch.ts:
199:3)^@    at async PreviewUi.previewContentsTerminal (file:///home/tennashi/.vim/pack/volt/opt/github.com_Shougo_ddu-ui-ff/denops
/@ddu-ui-ff/preview.ts:167:7)^@    at async PreviewUi.previewContents (file:///home/tennashi/.vim/pack/volt/opt/github.com_Shougo_d
du-ui-ff/denops/@ddu-ui-ff/preview.ts:107:14)^@    at async Ddu.uiAction (file:

Expected

Interrupts the execution of a command and executes the next command.

Environment Information

• ddu.vim version (SHA1): 07e9a28

• denops.vim version (SHA1): 8f3899de3d3add07105221262dca90a31c4c2d4c

• deno version(deno -V output): deno 1.31.1

• OS: Linux (6.1.0-4-amd64)

• neovim/Vim :version output:

VIM - Vi IMproved 9.0 (2022 Jun 28, compiled Mar  4 2023 19:53:01)
適用済パッチ: 1-1376

Provide a minimal init.vim/vimrc without plugin managers (Required!)

" Your minimal init.vim/vimrc
set runtimepath+=~/path/to/ddu.vim/
set runtimepath+=~/path/to/ddu-ui-ff/
set runtimepath+=~/path/to/test_kind/

call ddu#custom#patch_global({
\ 'uiParams': {
\   'ff': {
\     'autoAction': {'name': 'preview'},
\   },
\ },
\})

• ~/path/to/test_kind/denops/@ddu-sources/test.ts

import { BaseSource, Item } from "https://deno.land/x/ddu_vim@v2.3.0/types.ts";
import { GatherArguments } from "https://deno.land/x/ddu_vim@v2.3.0/base/source.ts";
import { ActionData } from "../@ddu-kinds/test.ts";

type Params = Record<never, never>;

export class Source extends BaseSource<Params> {
  kind = "test";

  gather(_args: GatherArguments<Params>): ReadableStream<Item<ActionData>[]> {
    return new ReadableStream({
      start(controler) {
        controler.enqueue([
          { word: "test-1", action: { time: 10 } },
          { word: "test-2", action: { time: 20 } },
          { word: "test-3", action: { time: 30 } },
        ]);
        controler.close();
      },
    });
  }

  params(): Params {
    return {};
  }
}

• ~/path/to/test_kind/denops/@ddu-kinds/test.ts

import {
  ActionArguments,
  ActionFlags,
  BaseKind,
  Previewer,
} from "https://deno.land/x/ddu_vim@v2.4.0/types.ts";
import { GetPreviewerArguments } from "https://deno.land/x/ddu_vim@v2.4.0/base/kind.ts";
import { term_start } from "https://deno.land/x/denops_std@v4.0.0/function/vim/mod.ts";

type Params = Record<never, never>;

export type ActionData = {
  time: number;
}

export class Kind extends BaseKind<Params> {
  actions: Record<
    string,
    (args: ActionArguments<Params>) => Promise<ActionFlags>
  > = {};

  getPreviewer(args: GetPreviewerArguments): Promise<Previewer | undefined> {
    const action = args.item.action as ActionData
    return Promise.resolve({
      kind: "terminal",
      cmds: ["sleep", action.time],
    });
  }

  params(): Params {
    return {};
  }
}

How to reproduce the problem from neovim/Vim startup (Required!)

1. :call ddu#start({'ui': 'ff', 'sources': [{'name': 'test'}]})
2. jj (invoke 2 preview commands)

Screenshot (if possible)

Upload the log messages by :redir and :message (if errored)

[Shougo]

Please update ddu-ui-ff. It is not ddu.vim error.