Custom Mapping not Working in cmdline Mode

[Balrrach]

These are my mapping in cmp.setup:

mapping = cmp.mapping.preset.insert({
	['<C-d>'] = cmp.mapping.scroll_docs(-4),
	['<C-f>'] = cmp.mapping.scroll_docs(4),
	['<C-Space>'] = cmp.mapping.complete(),
	['<CR>'] = cmp.mapping.confirm({ select = true }),
	['<C-n>'] = cmp.mapping(cmp.mapping.select_next_item(), { 'i', 's' }),
	['<C-e>'] = cmp.mapping(cmp.mapping.select_prev_item(), { 'i', 's' }),
	['<Esc>'] =
	function(fallback)
		cmp.mapping.abort()
		fallback()
	end,
    }),

This is my configuration for cmdline:

cmp.setup.cmdline(':', {
    mapping = cmp.mapping.preset.cmdline(),

    sources = cmp.config.sources({
      { name = 'path' }
    }, {
      { name = 'cmdline' }
    })
  })

In my case ctrl+e is mapped to select_previous_item() and this works correctly usually but not but not in cmdline mode. In cmdline instead of selecting previous item suggestion is cancelled as if no mapping was made at all since this is the standard behavior. I can't guess the cause since other mappings like ctrl+n to select_next_item() works correctly. Before posting it as an issue I'd like to see if anyone can give a hint on the cause of this strange behavior. Thanks before hand!

[jbertozzi]

I ran into the same issue, I couldn't make it work. :(

[fitrh]

If you want full control over the keymap, don't use the preset

mapping = {
    -- add 'c' to make it work in cmdline
    ['<C-e>'] = cmp.mapping(cmp.mapping.select_prev_item(), { 'i', 's', 'c' }),
    -- or this form
    ['<C-e>'] = {
        i = cmp.mapping.select_prev_item(),
        c = cmp.mapping.select_prev_item(),
    },
   -- also, inside a closure, you can't use `cmp.mapping` helper, instead, use cmp function directly
   ['<Esc>'] = function(fallback)
        cmp.abort() -- instead of cmp.mapping.abort()
        fallback()
    end,
}

You can see what that cmp.preset doing in here: https://github.com/hrsh7th/nvim-cmp/blob/main/lua/cmp/config/mapping.lua