vim: scrolling of the floating preview window of CocList doesn't work

[monkoose]

EDIT: because it doesn't work in normal mode too.

Result from CocInfo

vim version: VIM - Vi IMproved 9.0 9001506
node version: v19.9.0
coc.nvim version: 0.0.82-3014125 2023-04-11 14:28:54 +0800
coc.nvim directory: /home/monkoose/.vim/pack/minpac/opt/coc.nvim
term: dumb
platform: linux

Describe the bug

In vim when "list.floatPreview": true is set it is impossible to scroll preview window with do:previewup or do:previewdown.

Reproduce the bug

Add to your coc-settings.json this code

{
  "list.floatPreview": true,
  "list.insertMappings": {
     "<C-n>": "do:previewdown",
     "<C-p>": "do:previewup"
  },
  "list.normalMappings": {
     "<C-n>": "do:previewdown",
     "<C-p>": "do:previewup"
  }
}

Open some list in insert mode that can have preview window like :CocList outline, toggle preview window and try your mappings to scroll it. Nothing happens.

[fannheyward]

Yes, the scrolling of preview only works in normal mode.

[monkoose]

Yes, the scrolling of preview only works in normal mode.

But it works just fine in insert mode when "list.floatPreview": false.

[fannheyward]

Do you mean scroll the preview window with C-f?

[monkoose]

If i'm not mistaken C-f scrolls list window itself (changing current list item). I'm talking of the preview window for the current list item location.

shows preview in floating window - preview scroll doesn't work in insert mode

{
  "list.floatPreview": true,
  "list.insertMappings": {
     "<C-n>": "do:previewdown",
     "<C-p>": "do:previewup"
  },
  "list.normalMappings": {
     "<C-n>": "do:previewdown",
     "<C-p>": "do:previewup"
  }
}

shows preview in split - preview scroll works in both modes

{
  "list.floatPreview": false,
  "list.insertMappings": {
     "<C-n>": "do:previewdown",
     "<C-p>": "do:previewup"
  },
  "list.normalMappings": {
     "<C-n>": "do:previewdown",
     "<C-p>": "do:previewup"
  }
}

Haven't tested it in neovim, only in vim it behaves as I described.

[fannheyward]

C-f scrolls list window itself

Yes.

From the mapping code, do:previewdown can only mapped in normal mode, will check this

coc.nvim/src/list/mappings.ts

Lines 170 to 171 in 3014125

	this.addKeyMapping('normal', '<C-e>', 'do:previewdown')
	this.addKeyMapping('normal', '<C-y>', 'do:previewup')

[fannheyward]

Reproduced with vim, nvim works as expected.

[fannheyward]

In normal mode it is working.

Does scrolling work in normal mode with list.floatPreview = true in vim?

In my tests, when list.floatPreview = true, scrolling of the float preview didn't work in insert or normal in vim.

[monkoose]

In normal mode it is working.

Does scrolling work in normal mode with list.floatPreview = true in vim?

In my tests, when list.floatPreview = true, scrolling of the float preview didn't work in insert or normal in vim.

Oops. Sorry for confusion. Yes it doesn't work (my config just have some general floating window scroll mappings that are mapped to <C-n> and <C-p> in normal mode), so because of this it worked in normal mode for me.
Can confirem now that it doesn't work in either mode: normal or insert.