Sometime back I submitted a pull-request which added location-list support for denite. I've started making the same update for ddu in a commit located at https://github.com/jrudess/ddu-kind-file/commit/613bd03f9d3f459dbfe1ae09680bf2c4da4fc555

With Denite, I retrieved the window number using the following API:

  wininfo = self._vim.call('denite#helper#_get_wininfo')
  self.vim.call('setloclist', wininfo['winnr'], qfloclist)

Do you have a similar API for ddu? For now I've just got a hard-coded constant buffer number.

  // TODO: Need correct buffer number
  const winnr = await fn.bufwinnr(args.denops, 1);
  await fn.setloclist(args.denops, winnr, qfloclist, " ");

minimal setting

set runtimepath^=path/to/ddu.vim
set runtimepath^=path/to/ddu-ui-ff
set runtimepath^=path/to/ddu-source-file_rec
set runtimepath^=path/to/ddu-kind-file

augroup Ddu
  autocmd!
  autocmd FileType ddu-ff nnoremap <buffer> d <Cmd>call ddu#ui#ff#do_action('itemAction', {'name': 'delete'})<CR>
augroup END

call ddu#custom#patch_global({
      \ 'sources': [{'name': 'file_rec'}],
      \ 'ui': 'ff',
      \ })

instruction

1. start vim
2. :call ddu#start()
3. move cursor file that I will delete
4. press d
5. show error message

https://user-images.githubusercontent.com/29175998/204100519-a34f7dbb-65c7-4ae7-b7dc-59b63bddbae2.mov

error message

Error detected while processing function ddu#ui#ff#do_action[13]..ddu#ui_action[1]..ddu#_request[22]..denops#request[1]..denops#server#request[6]..<SNR>27_request:                                                                   
line    1:
Error invoking 'invoke' on channel 4:
Error: Failed to call 'uiAction' with ["default","itemAction",{"name":"delete"}]: Error: Failed to call 'call' with ["ddu#item_action","default","delete",[{"word":"tmp","action":{"path":"/Users/solenoid/LocalProject/neovim_minimal/tmp","isD
irectory":false},"kind":"file","matcherKey":"tmp","__sourceIndex":0,"__sourceName":"file_rec","__level":0,"__expanded":false}],{}]: Error: Failed to call 'nvim_call_function' with ["ddu#item_action",["default","delete",[{"word":"tmp","actio
n":{"path":"/Users/solenoid/LocalProject/neovim_minimal/tmp","isDirectory":false},"kind":"file","matcherKey":"tmp","__sourceIndex":0,"__sourceName":"file_rec","__level":0,"__expanded":false}],{}]]: [0,"Vim(return):Error invoking 'invoke' on
 channel 4:\nError: Failed to call 'itemAction' with [\"default\",\"delete\",[{\"word\":\"tmp\",\"__sourceName\":\"file_rec\",\"action\":{\"path\":\"/Users/solenoid/LocalProject/neovim_minimal/tmp\",\"isDirectory\":false},\"__level\":0,\"ki
nd\":\"file\",\"__expanded\":false,\"matcherKey\":\"tmp\",\"__sourceIndex\":0}],{}]: Error: Failed to call 'call' with [\"ddu#kind#file#confirm\",\"Are you sure you want to delete /Users/solenoid/LocalProject/neovim_minimal/tmp?\",\"&Yes\\n
&No\\n&Cancel\",2]: Error: Failed to call 'nvim_call_function' with [\"ddu#kind#file#confirm\",[\"Are you sure you want to delete /Users/solenoid/LocalProject/neovim_minimal/tmp?\",\"&Yes\\n&No\\n&Cancel\",2]]: [0,\"Vim:E117: Unknown functi
on: ddu#kind#file#confirm\"]\n    at Session.call (https://deno.land/x/[email protected]/session.ts:207:13)\n    at async Session.call (file:///Users/solenoid/.cache/dein/repos/github.com/vim-denops/denops.vim/denops/@denops-private/servic
e.ts:170:14)\n    at async Session.dispatch (https://deno.land/x/[email protected]/session.ts:99:12)\n    at async https://deno.land/x/[email protected]/session.ts:108:18\n    at async Session.handleRequest (https://deno.land/x/msgpack_rp
[email protected]/session.ts:104:29)\n    at Session.call (https://deno.land/x/[email protected]/session.ts:207:13)\n    at async DenopsImpl.call (file:///Users/solenoid/.cache/dein/repos/github.com/vim-denops/denops.vim/denops/@denops/impl.ts:34:1
2)\n    at async delete (file:///Users/solenoid/.cache/dein/repos/github.com/Shougo/ddu-kind-file/denops/@ddu-kinds/file.ts:111:23)\n    at async Ddu.itemAction (file:///Users/solenoid/.cache/dein/repos/github.com/Shougo/ddu.vim/denops/ddu/
ddu.ts:735:19)\n    at async Session.itemAction (file:///Users/solenoid/.cache/dein/repos/github.com/Shougo/ddu.vim/denops/ddu/app.ts:247:7)\n    at async Session.dispatch (https://deno.land/x/[email protected]/session.ts:99:12)\n    at as
ync https://deno.land/x/[email protected]/session.ts:108:18\n    at async Session.handleRequest (https://deno.land/x/[email protected]/session.ts:104:29)\n    at Session.call (https://deno.land/x/[email protected]/session.ts:207:13)\n   
 at async Service.dispatch (file:///Users/solenoid/.cache/dein/repos/github.com/vim-denops/denops.vim/denops/@denops-private/service.ts:124:14)\n    at async Session.invoke (file:///Users/solenoid/.cache/dein/repos/github.com/vim-denops/den
ops.vim/denops/@denops-private/host/nvim.ts:53:16)\n    at async Session.dispatch (https://deno.land/x/[email protected]/session.ts:99:12)\n    at async https://deno.land/x/[email protected]/session.ts:108:18\n    at async Session.handleR
equest (https://deno.land/x/[email protected]/session.ts:104:29)"]
    at Session.call (https://deno.land/x/[email protected]/session.ts:207:13)
    at async Session.call (file:///Users/solenoid/.cache/dein/repos/github.com/vim-denops/denops.vim/denops/@denops-private/service.ts:170:14)
    at async Session.dispatch (https://deno.land/x/[email protected]/session.ts:99:12)
    at async https://deno.land/x/[email protected]/session.ts:108:18
    at async Session.handleRequest (https://deno.land/x/[email protected]/session.ts:104:29)
    at Session.call (https://deno.land/x/[email protected]/session.ts:207:13)
    at async DenopsImpl.call (file:///Users/solenoid/.cache/dein/repos/github.com/vim-denops/denops.vim/denops/@denops/impl.ts:34:12)
    at async itemAction (file:///Users/solenoid/.cache/dein/repos/github.com/Shougo/ddu-ui-ff/denops/@ddu-uis/ff.ts:592:7)
    at async Ddu.uiAction (file:///Users/solenoid/.cache/dein/repos/github.com/Shougo/ddu.vim/denops/ddu/ddu.ts:550:19)
    at async Session.uiAction (file:///Users/solenoid/.cache/dein/repos/github.com/Shougo/ddu.vim/denops/ddu/app.ts:233:7)
    at async Session.dispatch (https://deno.land/x/[email protected]/session.ts:99:12)
    at async https://deno.land/x/[email protected]/session.ts:108:18
    at async Session.handleRequest (https://deno.land/x/[email protected]/session.ts:104:29)
    at Session.call (https://deno.land/x/[email protected]/session.ts:207:13)
    at async Service.dispatch (file:///Users/solenoid/.cache/dein/repos/github.com/vim-denops/denops.vim/denops/@denops-private/service.ts:124:14)
    at async Session.invoke (file:///Users/solenoid/.cache/dein/repos/github.com/vim-denops/denops.vim/denops/@denops-private/host/nvim.ts:53:16)
    at async Session.dispatch (https://deno.land/x/[email protected]/session.ts:99:12)
    at async https://deno.land/x/[email protected]/session.ts:108:18
    at async Session.handleRequest (https://deno.land/x/[email protected]/session.ts:104:29)

Problems summary

newFile, rename, trash are breaks tree-view.

Please see the below movie.

https://user-images.githubusercontent.com/61523777/202909546-d6ce34c1-8630-4e9b-8721-0249b4744d96.mov

1. Start ddu.
2. Create new file hoge/fuga/bar.txt with newFile
3. Delete hoge/fuga/bar.txt with trash
4. Rename hoge/fuga/foo.txt to hoge/fuga/foo1.txt with rename

Expected

Does not breaks the tree-view.

Environment Information

:version
NVIM v0.8.1
Build type: Release
LuaJIT 2.1.0-beta3
Compiled by [email protected]

Features: +acl +iconv +tui
See ":help feature-compile"

      システム vimrc: "$VIM/sysinit.vim"
       省略時の $VIM: "/opt/homebrew/Cellar/neovim/0.8.1/share/nvim"

Run :checkhealth for more info

• macOS 13.0.1
• All plugins are up-to-date.

Provide a minimal init.vim/vimrc with less than 50 lines (Required!)

let s:plugins = [
      \ 'vim-denops/denops.vim',
      \ 'Shougo/ddu.vim',
      \ 'Shougo/ddu-ui-filer',
      \ 'ryota2357/ddu-column-icon_filename',
      \ 'Shougo/ddu-column-filename',
      \ 'Shougo/ddu-source-file',
      \ 'Shougo/ddu-kind-file',
      \ ]

for item in s:plugins
  execute 'set runtimepath+=~/.cache/dein/repos/github.com/' . item
endfor

call ddu#custom#patch_global({
    \   'ui': 'filer',
    \   'sources': [{'name': 'file', 'params': {}}],
    \   'resume': v:true,
    \   'sourceOptions': {
    \     '_': {
    \       'columns': ['icon_filename'],
    \     },
    \   },
    \   'kindOptions': {
    \     'file': {
    \       'defaultAction': 'open',
    \     },
    \   }
    \ })

autocmd FileType ddu-filer call s:ddu_my_settings()
function! s:ddu_my_settings() abort
  nnoremap <buffer><expr><silent><CR> ddu#ui#filer#is_tree()
    \ ? "<Cmd>call ddu#ui#filer#do_action('expandItem', {'mode': 'toggle'})<CR>"
    \ : "<Cmd>call ddu#ui#filer#do_action('itemAction')<CR>"
  nnoremap <buffer><silent> q <Cmd>call ddu#ui#filer#do_action('quit')<CR>
  nnoremap <buffer> n <Cmd>call ddu#ui#filer#do_action('itemAction', { 'name': 'newFile' })<CR>
  nnoremap <buffer> r <Cmd>call ddu#ui#filer#do_action('itemAction', { 'name': 'rename' })<CR>
  nnoremap <buffer> d <Cmd>call ddu#ui#filer#do_action('itemAction', { 'name': 'trash' })<CR>
endfunction

In the movie, I use icon_filename for ddu-column, but the same problem occurs with filename

If newFile action input ends with "/", create new directory instead of new file. This behavior is the same as new_file of defx.nvim

try to create new file which ends with "/", error is occurred.

An error occurs when an empty array is passed to previewCmds as shown below. I feel that passing an empty array is a problem, but it is better to try to ignore it.

call ddu#ui#ff#do_action('preview', {'previewCmds' : [], })

Error detected while processing function ddu#ui#ff#do_action[13]..ddu#ui_action[1]..ddu#_request[22]..denops#request[1]..denops#server#request[6]..<SNR>30_request:
line    1:
Error invoking 'invoke' on channel 4:
Error: Failed to call 'uiAction' with ["default","preview",{"previewCmds":[]}]: Error: Failed to call 'call' with ["termopen",[]]: Error: Failed to call 'nvim_call_function' with ["termopen",[[]]]: [0,"Vim:E474: Invalid argument"]
    at Session.call (https://deno.land/x/[email protected]/session.ts:207:13)
    at async Service.call (file:///home/erw7/.config/nvim/dein/repos/github.com/vim-denops/denops.vim/denops/@denops-private/service.ts:92:12)
    at async Session.call (file:///home/erw7/.config/nvim/dein/repos/github.com/vim-denops/denops.vim/denops/@denops-private/service.ts:141:14)
    at async Session.dispatch (https://deno.land/x/[email protected]/session.ts:99:12)
    at async https://deno.land/x/[email protected]/session.ts:108:18
    at async Session.handleRequest (https://deno.land/x/[email protected]/session.ts:104:29)
    at Session.call (https://deno.land/x/[email protected]/session.ts:207:13)
    at async DenopsImpl.call (file:///home/erw7/.config/nvim/dein/repos/github.com/vim-denops/denops.vim/denops/@denops/impl.ts:28:12)
    at async PreviewUi.previewTerminal (file:///home/erw7/src/github.com/Shougo/ddu-ui-ff/denops/@ddu-ui-ff/preview.ts:152:7)
    at async PreviewUi.preview (file:///home/erw7/src/github.com/Shougo/ddu-ui-ff/denops/@ddu-ui-ff/preview.ts:98:14)
    at async Ddu.uiAction (file:///home/erw7/.config/nvim/dein/repos/github.com/Shougo/ddu.vim/denops/ddu/ddu.ts:394:19)
    at async Session.uiAction (file:///home/erw7/.config/nvim/dein/repos/github.com/Shougo/ddu.vim/denops/ddu/app.ts:206:7)
    at async Session.dispatch (https://deno.land/x/[email protected]/session.ts:99:12)
    at async https://deno.land/x/[email protected]/session.ts:108:18
    at async Session.handleRequest (https://deno.land/x/[email protected]/session.ts:104:29)
    at Session.call (https://deno.land/x/[email protected]/session.ts:207:13)
    at async Service.dispatch (file:///home/erw7/.config/nvim/dein/repos/github.com/vim-denops/denops.vim/denops/@denops-private/service.ts:107:14)
    at async Session.invoke (file:///home/erw7/.config/nvim/dein/repos/github.com/vim-denops/denops.vim/denops/@denops-private/host/nvim.ts:48:16)
    at async Session.dispatch (https://deno.land/x/[email protected]/session.ts:99:12)
    at async https://deno.land/x/[email protected]/session.ts:108:18
    at async Session.handleRequest (https://deno.land/x/[email protected]/session.ts:104:29)