mirror of
https://github.com/LunarVim/LunarVim.git
synced 2024-09-21 02:55:09 +02:00
305 lines
8.4 KiB
Lua
305 lines
8.4 KiB
Lua
local M = {}
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M.methods = {}
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---checks if the character preceding the cursor is a space character
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---@return boolean true if it is a space character, false otherwise
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local check_backspace = function()
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local col = vim.fn.col "." - 1
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return col == 0 or vim.fn.getline("."):sub(col, col):match "%s"
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end
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M.methods.check_backspace = check_backspace
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local function T(str)
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return vim.api.nvim_replace_termcodes(str, true, true, true)
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end
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---wraps vim.fn.feedkeys while replacing key codes with escape codes
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---Ex: feedkeys("<CR>", "n") becomes feedkeys("^M", "n")
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---@param key string
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---@param mode string
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local function feedkeys(key, mode)
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vim.fn.feedkeys(T(key), mode)
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end
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M.methods.feedkeys = feedkeys
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---checks if emmet_ls is available and active in the buffer
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---@return boolean true if available, false otherwise
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local is_emmet_active = function()
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local clients = vim.lsp.buf_get_clients()
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for _, client in pairs(clients) do
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if client.name == "emmet_ls" then
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return true
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end
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end
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return false
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end
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M.methods.is_emmet_active = is_emmet_active
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---when inside a snippet, seeks to the nearest luasnip field if possible, and checks if it is jumpable
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---@param dir number 1 for forward, -1 for backward; defaults to 1
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---@return boolean true if a jumpable luasnip field is found while inside a snippet
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local function jumpable(dir)
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local luasnip_ok, luasnip = pcall(require, "luasnip")
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if not luasnip_ok then
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return
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end
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local win_get_cursor = vim.api.nvim_win_get_cursor
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local get_current_buf = vim.api.nvim_get_current_buf
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local function inside_snippet()
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-- for outdated versions of luasnip
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if not luasnip.session.current_nodes then
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return false
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end
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local node = luasnip.session.current_nodes[get_current_buf()]
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if not node then
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return false
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end
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local snip_begin_pos, snip_end_pos = node.parent.snippet.mark:pos_begin_end()
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local pos = win_get_cursor(0)
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pos[1] = pos[1] - 1 -- LuaSnip is 0-based not 1-based like nvim for rows
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return pos[1] >= snip_begin_pos[1] and pos[1] <= snip_end_pos[1]
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end
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---sets the current buffer's luasnip to the one nearest the cursor
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---@return boolean true if a node is found, false otherwise
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local function seek_luasnip_cursor_node()
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-- for outdated versions of luasnip
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if not luasnip.session.current_nodes then
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return false
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end
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local pos = win_get_cursor(0)
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pos[1] = pos[1] - 1
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local node = luasnip.session.current_nodes[get_current_buf()]
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if not node then
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return false
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end
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local snippet = node.parent.snippet
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local exit_node = snippet.insert_nodes[0]
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-- exit early if we're past the exit node
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if exit_node then
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local exit_pos_end = exit_node.mark:pos_end()
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if (pos[1] > exit_pos_end[1]) or (pos[1] == exit_pos_end[1] and pos[2] > exit_pos_end[2]) then
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snippet:remove_from_jumplist()
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luasnip.session.current_nodes[get_current_buf()] = nil
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return false
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end
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end
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node = snippet.inner_first:jump_into(1, true)
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while node ~= nil and node.next ~= nil and node ~= snippet do
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local n_next = node.next
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local next_pos = n_next and n_next.mark:pos_begin()
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local candidate = n_next ~= snippet and next_pos and (pos[1] < next_pos[1])
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or (pos[1] == next_pos[1] and pos[2] < next_pos[2])
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-- Past unmarked exit node, exit early
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if n_next == nil or n_next == snippet.next then
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snippet:remove_from_jumplist()
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luasnip.session.current_nodes[get_current_buf()] = nil
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return false
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end
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if candidate then
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luasnip.session.current_nodes[get_current_buf()] = node
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return true
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end
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local ok
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ok, node = pcall(node.jump_from, node, 1, true) -- no_move until last stop
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if not ok then
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snippet:remove_from_jumplist()
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luasnip.session.current_nodes[get_current_buf()] = nil
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return false
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end
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end
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-- No candidate, but have an exit node
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if exit_node then
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-- to jump to the exit node, seek to snippet
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luasnip.session.current_nodes[get_current_buf()] = snippet
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return true
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end
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-- No exit node, exit from snippet
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snippet:remove_from_jumplist()
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luasnip.session.current_nodes[get_current_buf()] = nil
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return false
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end
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if dir == -1 then
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return inside_snippet() and luasnip.jumpable(-1)
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else
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return inside_snippet() and seek_luasnip_cursor_node() and luasnip.jumpable()
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end
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end
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M.methods.jumpable = jumpable
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M.config = function()
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local status_cmp_ok, cmp = pcall(require, "cmp")
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if not status_cmp_ok then
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return
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end
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local status_luasnip_ok, luasnip = pcall(require, "luasnip")
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if not status_luasnip_ok then
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return
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end
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lvim.builtin.cmp = {
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confirm_opts = {
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behavior = cmp.ConfirmBehavior.Replace,
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select = false,
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},
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completion = {
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---@usage The minimum length of a word to complete on.
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keyword_length = 1,
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},
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experimental = {
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ghost_text = true,
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native_menu = false,
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},
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formatting = {
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kind_icons = {
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Class = " ",
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Color = " ",
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Constant = "ﲀ ",
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Constructor = " ",
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Enum = "練",
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EnumMember = " ",
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Event = " ",
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Field = " ",
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File = "",
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Folder = " ",
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Function = " ",
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Interface = "ﰮ ",
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Keyword = " ",
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Method = " ",
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Module = " ",
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Operator = "",
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Property = " ",
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Reference = " ",
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Snippet = " ",
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Struct = " ",
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Text = " ",
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TypeParameter = " ",
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Unit = "塞",
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Value = " ",
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Variable = " ",
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},
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source_names = {
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nvim_lsp = "(LSP)",
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emoji = "(Emoji)",
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path = "(Path)",
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calc = "(Calc)",
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cmp_tabnine = "(Tabnine)",
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vsnip = "(Snippet)",
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luasnip = "(Snippet)",
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buffer = "(Buffer)",
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},
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duplicates = {
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buffer = 1,
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path = 1,
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nvim_lsp = 0,
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luasnip = 1,
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},
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duplicates_default = 0,
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format = function(entry, vim_item)
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vim_item.kind = lvim.builtin.cmp.formatting.kind_icons[vim_item.kind]
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vim_item.menu = lvim.builtin.cmp.formatting.source_names[entry.source.name]
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vim_item.dup = lvim.builtin.cmp.formatting.duplicates[entry.source.name]
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or lvim.builtin.cmp.formatting.duplicates_default
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return vim_item
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end,
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},
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snippet = {
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expand = function(args)
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require("luasnip").lsp_expand(args.body)
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end,
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},
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documentation = {
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border = { "╭", "─", "╮", "│", "╯", "─", "╰", "│" },
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},
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sources = {
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{ name = "nvim_lsp" },
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{ name = "path" },
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{ name = "luasnip" },
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{ name = "cmp_tabnine" },
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{ name = "nvim_lua" },
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{ name = "buffer" },
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{ name = "calc" },
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{ name = "emoji" },
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{ name = "treesitter" },
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{ name = "crates" },
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},
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mapping = {
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["<C-k>"] = cmp.mapping.select_prev_item(),
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["<C-j>"] = cmp.mapping.select_next_item(),
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["<C-d>"] = cmp.mapping.scroll_docs(-4),
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["<C-f>"] = cmp.mapping.scroll_docs(4),
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-- TODO: potentially fix emmet nonsense
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["<Tab>"] = cmp.mapping(function(fallback)
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if cmp.visible() then
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cmp.select_next_item()
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elseif luasnip.expandable() then
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luasnip.expand()
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elseif jumpable() then
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luasnip.jump(1)
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elseif check_backspace() then
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fallback()
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elseif is_emmet_active() then
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return vim.fn["cmp#complete"]()
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else
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fallback()
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end
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end, {
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"i",
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"s",
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}),
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["<S-Tab>"] = cmp.mapping(function(fallback)
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if cmp.visible() then
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cmp.select_prev_item()
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elseif jumpable(-1) then
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luasnip.jump(-1)
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else
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fallback()
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end
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end, {
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"i",
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"s",
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}),
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["<C-Space>"] = cmp.mapping.complete(),
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["<C-e>"] = cmp.mapping.abort(),
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["<CR>"] = cmp.mapping(function(fallback)
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if cmp.visible() and cmp.confirm(lvim.builtin.cmp.confirm_opts) then
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return
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end
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if jumpable() then
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if not luasnip.jump(1) then
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fallback()
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end
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else
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fallback()
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end
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end),
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},
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}
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end
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M.setup = function()
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require("luasnip/loaders/from_vscode").lazy_load()
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require("cmp").setup(lvim.builtin.cmp)
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end
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return M
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