Saghen
Configurable delay for displaying the menu
Feature Description
Similar to the documentation, the completion menu could benefit of an additional auto_show_delay_ms. This would be a middle ground between "always" (showing on every keystroke / min_keyword_length) and "never" (triggering manually).
From a UX perspective, this could reduces cognitive load by minimizing visual noise and display the list only during brief, intentional pauses. From a performance point of view, this could alleviate some unnecessary work.
Takes effect only if auto_show is enabled. The trigger characters should take priority over it.
Related: #446 Somewhat related: #402, #336
when completion is expensive this could also alleviate performance problems
Hello. I did a manual timer for now:
-- Delay blink.cmp completion by 1 second.
{
"blink.cmp",
optional = true,
opts = function(_, opts)
local delay_ms = 1000
-- disable auto_show
opts.completion = opts.completion or {}
opts.completion.menu = opts.completion.menu or {}
opts.completion.menu.auto_show = false
--
opts.sources = opts.sources or {}
local min_keyword_length = opts.sources.min_keyword_length or 4
--
local ok_to_run = function()
-- Only run in insert mode.
if vim.api.nvim_get_mode()["mode"] ~= "i" then return false end
-- Do not run if the word below cursor is short.
if #vim.fn.expand "<cword>" < min_keyword_length then return false end
return true
end
-- setup timer
local timer = vim.loop.new_timer()
assert(timer)
vim.api.nvim_create_autocmd({ "CursorMovedI", "TextChangedI" }, {
callback = function()
if not ok_to_run() then return end
-- Remember buffer number.
local bufnr = vim.api.nvim_get_current_buf()
-- Stop any previous timer execution.
timer:stop()
timer:start(delay_ms, 0, function()
timer:stop()
vim.schedule(function()
-- Only run in proper buffer.
if bufnr ~= vim.api.nvim_get_current_buf() then return end
if not ok_to_run() then return end
require("blink.cmp").show()
end)
end)
end,
})
end,
},
I tried looking into the code base, but I just do not know where this debouncing should be implemented it. But I think inside trigger.show() https://github.com/Saghen/blink.cmp/blob/main/lua/blink/cmp/completion/trigger/init.lua#L213 needs to track a timer() depending on trigger_kind show it instantly or wait. Something like this https://github.com/Kamilcuk/blink.cmp/commit/701c364b20c0c87fae3c346fdbcd805b76c7d24b .
