NvimTree_1 will hijack the window when close the buf

[chenjie199234]

Description

1. OpenDir

2. OpenFile

3. :lua vim.lsp.buf.definition() on fmt.Println
   the buf changed to print.go,the scan.go buf is because of the lsp's diagnostic
   if without this,close the opened file main.go directly,everything works fine

4. :bw
   close the current buf
   here is the problem!
   the NvimTree_1 hijack the window
   we can see the main.go in the buf list,there has no prefix path,so the current buf already changed to the main.go

5. :bn
   change to next buf

Neovim version

NVIM v0.12.1
Build type: Release
LuaJIT 2.1.1774638290

Operating system and version

windows 11 amd64

Windows variant

windows terminal app with powershell

nvim-tree version

"nvim-tree.lua": { "branch": "master", "commit": "509962f21ab7289d8dcd28568af539be39a8c01e" }

Clean room replication

require('lazy').setup({
  {
    'kyazdani42/nvim-tree.lua',
    opts={
      on_attach=function(bufnr)
        local api = require('nvim-tree.api')
        api.config.mappings.default_on_attach(bufnr)
        vim.keymap.del('n','f',{ buffer = bufnr })
        vim.keymap.del('n','F',{ buffer = bufnr })
        vim.keymap.del('n','q',{ buffer = bufnr })
        vim.keymap.set('n','f',api.tree.toggle)
        vim.keymap.set('n','F',api.tree.toggle)
        -- <C-_> is <C-/>
        vim.keymap.set('n','<C-_>',function()api.tree.open();api.live_filter.start();end)
        vim.keymap.set('n','<M-/>',function()api.tree.open();api.live_filter.start();end)
        vim.keymap.set('n','?',api.tree.toggle_help)
      end,
      disable_netrw=true,
      hijack_netrw=true,
      hijack_unnamed_buffer_when_opening=true,
      prefer_startup_root=true,
      sync_root_with_cwd=true,
      reload_on_bufenter=true,
      respect_buf_cwd=true,
      update_focused_file = {
        enable = true,
        update_root = {
          enable = true,
          ignore_list = {},
        },
        exclude = false,
      },
      diagnostics = {
        enable = true,
        show_on_dirs = false,
        show_on_open_dirs = true,
        icons = {
          hint = "H",
          info = "I",
          warning = "W",
          error = "E",
        },
      },
    },
    lazy=false,
  },
})

Steps to reproduce

see the Description

Expected behavior

when close the buf created by lsp's definition,the NvimTree_1 will not hijack the window

Actual behavior

when close the buf created by lsp's definition,the NvimTree_1 will hijack the window
see the step 4

[chenjie199234]

my temporarily‌ fix is add this in my init.lua

vim.api.nvim_create_autocmd({"BufDelete"},{callback=function()
  local current_buf = vim.api.nvim_get_current_buf()
  local buf_ft = vim.api.nvim_buf_get_option(current_buf, 'filetype')
  if buf_ft == "NvimTree" then
	require('nvim-tree.api').tree.close()
	require('nvim-tree.api').tree.toggle({focus = false})
	return
  end
end})

[alex-courtis]

I can replicate 4: :bw does close the window and move focus to the nvim-tree window.

Your autocmd does work, the window is not closed.

I might not be understanding, however I think this is standard neovim behaviour: :bw and :bd will close the window if there is another window open.

Running nvim clean with no plugins:

[chenjie199234]

@alex-courtis the problem is,the NvimTree's buf shouldn't hijack the whole window
it works fine when not run the step 3.
OpenDir

Open main.go

Open go.mod

:bw close the go.mod buf

look!
the NvimTree didn't hijack the whole window
the edit area's buf changed to the main.go