bug: scroll weird behavior with blink-cmp

[destngx]

Did you check docs and existing issues?

• I have read all the snacks.nvim docs
• I have updated the plugin to the latest version before submitting this issue
• I have searched the existing issues of snacks.nvim
• I have searched the existing issues of plugins related to this issue

Neovim version (nvim -v)

0.11.0

Operating system/version

MacOS

Describe the bug

Screen.Recording.2025-04-04.at.22.15.08.mov

As you can see in the video, scroll animation is weird when used with blink-cmp, here I use the code companion.nvm source with blink-cmp

Steps To Reproduce

1. open code-companion chat
2. type slash to trigger slash command suggest of blink-cmp
3. C-n or C-p to scroll up and down
4. When scroll to next page, the issue happens

Expected Behavior

When disabling snacks scroll, the issue gone

I hope to find a way to disable it only for the suggestion command or something like that

Disabling the scroll in the CodeCompanion buffer does not help.

Repro

[dpetka2001]

You can try the following (not 100% sure how it'll work)

local autocmd = vim.api.nvim_create_autocmd

autocmd("InsertEnter", {
  callback = function()
    vim.g.snacks_scroll = false
  end,
})

autocmd("InsertLeave", {
  callback = function()
    vim.g.snacks_scroll = true
  end,
})

[destngx]

@dpetka2001 Thank you for your suggestion, It does work nicely.

I also wrote a manual filter based on the doc to disable scroll on some buffer types and file types as a workaround.

scroll = {
      filter = function(buf)
        local buftype_pattern = { "help", "lazy", "Oil", "neo-tree", "dashboard", "packer", "startify", "fzf", "fugitive",
          "spectre_panel", "CodeCompanion" }
        local filetype_pattern = { "nofile" }
        local buftype = vim.bo[buf].buftype
        local filetype = vim.bo[buf].filetype

        -- Check if buftype or filetype is in the exclude pattern
        for _, p in ipairs(buftype_pattern) do
          if buftype == p then
            return false
          end
        end
        for _, p in ipairs(filetype_pattern) do
          if filetype == p then
            return false
          end
        end
        return vim.g.snacks_scroll ~= false and vim.b[buf].snacks_scroll ~= false and buftype ~= "terminal"
      end,
    }

[SheffeyG]

snacks.scroll has has some incompatibility with bordered float menu, here is a workaround Saghen/blink.cmp#1446