fix: make sure nvim-cmp keymaps are registered

[tronikelis]

Context

When editing files with the https://github.com/microsoft/compose-language-service LSP, the popup would always appear on new lines like so:

Completion appears on fully whitespace line

As you can see, this interferes with my fallback Tab keymap which indents the code and its very annoying

2024-11-09.17-20-25.mp4

This is with keyword_length = 1

The underlying issue

I think the underlying issue is:

1. docker compose LSP acts differently (this does not happen on other lsps)
2. nvim-cmp, even with keyword_length = 1 still shows the menu when there are no keywords (fully whitespace line), unless this is the expected behavior

Workaround

I started using this config to workaround the issue

enabled = function()
    return #vim.trim(vim.api.nvim_get_current_line()) ~= 0
end,

But then I saw that sometimes my completion selection just stopped working altogether like so:

Completion stops

2024-11-09.17-08-10.mp4

This PR

This pr makes the workaround actually work

With this PR

2024-11-09.17-07-44.mp4

[hrsh7th]

IMO, you can use get_trigger_characters option.

check out it.

require('cmp').setup({
  ...
  completion = {
    get_trigger_characters = function(trigger_characters)
      return vim.iter(trigger_characters):filter(function(char)
        return not chat:match('^%s*$')
      end)
    end
  }
  ...
})

[tronikelis]

IMO, you can use get_trigger_characters option.

check out it.

require('cmp').setup({
  ...
  completion = {
    get_trigger_characters = function(trigger_characters)
      return vim.iter(trigger_characters):filter(function(char)
        return not chat:match('^%s*$')
      end)
    end
  }
  ...
})

Damn, nice, seems to work, but I am not finding this in the doc?

[tronikelis]

With your config option there is a problem,

When completing a function the signature help and completion window does not open by itself anymore (which I want)

[tronikelis]

Do you see any problems with this fix?

[tronikelis]

this seems to work

get_trigger_characters = function(trigger_characters)
    if #vim.trim(vim.api.nvim_get_current_line()) == 0 then
        return {}
    end

    return trigger_characters
end,