cmdline fallback for <Esc> sometimes invokes the command

[djdv]

Make sure you have done the following

• I have updated to the latest version of blink.cmp
• I have read the README

Bug Description

When I define

keymap = { cmdline = { ['<Esc>'] = { 'cancel', 'fallback' } } }

typing :q followed by <Esc><Esc> will invoke :q for some reason.
When 'fallback' isn't used, this doesn't seem to happen but then you can't exit the command-line with Esc.

More detail: https://youtu.be/DBc5DhH0moA

Relevant configuration

keymap = { cmdline = { ['<Esc>'] = { 'cancel', 'fallback' } } }

neovim version

NVIM v0.11.0-dev-1351+gf9dd682621 Build type: Release LuaJIT 2.1.1732813678

blink.cmp version: branch, tag, or commit

97989c8

[Saghen]

More context: neovim/neovim#21585

Seems like no one knows why it works this way

[djdv]

Thanks for the info. That describes exactly what's going on here.

Generally speaking, Neovim behaves as if <Esc> was mapped to <CR>, making it very difficult, if not impossible, to have a useful command mode mapping for the escape key (e.g. a conditional mapping such as: close the completion window if it is visible, otherwise abort the cmdline with <Esc> as if it had never been mapped in the first place).

(The command and/or key combinations I prefer tend to be haunted for one legacy reason or another 😆)

[Saghen]

Closing since it seems like there's nothing to do on our side

[ad-on-is]

With a little bit of help from my friend Claude, I was able to solve that.
Hint: you need to set a preset, or other keys won't work, like moving up and down.

 keymap = {
        preset = "super-tab",
        cmdline = {
          preset = "super-tab",
          ["<esc>"] = {
            "cancel",
            function()
              if vim.fn.getcmdtype() ~= "" then
                vim.api.nvim_feedkeys(vim.api.nvim_replace_termcodes("<C-c>", true, true, true), "n", true)
                return
              end
            end,
          },
        },
      },

[a-usr]

slightly better solution that doesnt require a template:

keymap = {
  cmdline = {
    ["<ESC>"] = {
      function(cmp)
        if cmp.is_visible() then
          cmp.cancel()
        else
          vim.api.nvim_feedkeys(vim.api.nvim_replace_termcodes("<C-c>", true, true, true), "n", true)
        end
      end,
    },
  },
}