Stop NVimTree from overriding custom hotkeys

[savchenko]

I would like to prevent NVimTree from taking over <Tab> by default. Ideally — I would like it to not override any of my custom hotkeys, unless specifically asked to.

For example, I normally have <Tab> set to "switch between currently opened windows", like so:

function NormalTab()
    if winnr('$') > 1
      execute "normal \<C-w>w"
    elseif len(getbufinfo({'buflisted': 1})) > 1
      :bnext
    endif
endfunction

I would like this behaviour to continue working in all windows, including the nvim-tree one.

I have checked the on_attach section in the manual, however adding vim.keymap.del() after the api.config.mappings.default_on_attach(bufnr) does not seem to work.

Any clues?

[alex-courtis]

How are you deleting the keymap? Are you specifying the buffer?

From my config:

vim.keymap.del("n", "<BS>",     { buffer = bufnr }) -- api.node.navigate.parent_close,

[savchenko]

Negative, tested as following:

local function my_on_attach(bufnr)
    local api = require "nvim-tree.api"
    local function opts(desc)
        return { desc = "nvim-tree: " .. desc, buffer = bufnr, noremap = true, silent = true, nowait = true }
    end
    vim.keymap.del("n", "<Tab>", { buffer = bufnr })
end
require("nvim-tree").setup({
    on_attach = my_on_attach()
})

Pressing Tab in the nvim-tree split opens/closes highlighted folder.

Further, executing :verbose nmap <Tab> in a regular buffer shows:

No mapping found 

And in the nvim-tree split:

n  <Tab>       *@<Lua 452: ~/.local/share/nvim/lazy/nvim-tree.lua/lua/nvim-tree/api.lua:77>
                 nvim-tree: Open Preview

[alex-courtis]

require("nvim-tree").setup({
    on_attach = my_on_attach()
})

I think that's going to set on_attach to nil - the result of the function.

Try setting to the function itself, so that it may be called when creating the tree, see :help nvim-tree-mappings

  require("nvim-tree").setup({
    ---
    on_attach = my_on_attach,
    ---

[savchenko]

Ah, I shouldn't have called the function! Thanks.