nvimdots/lua/coc-settings.lua

vim.opt.backup = false
vim.opt.writebackup = false
vim.opt.completeopt = "menuone,menu,noinsert,noselect,popup"
vim.opt.pumheight = 10

vim.opt.updatetime = 300

vim.opt.signcolumn = "yes"

local keyset = vim.keymap.set
function _G.check_back_space()
	local col = vim.fn.col "." - 1
	return col == 0 or vim.fn.getline("."):sub(col, col):match "%s" ~= nil
end

-- Use Tab for trigger completion with characters ahead and navigate
-- NOTE: There's always a completion item selected by default, you may want to enable
-- no select by setting `"suggest.noselect": true` in your configuration file
-- NOTE: Use command ':verbose imap <tab>' to make sure Tab is not mapped by
-- other plugins before putting this into your config
local opts =
	{ silent = true, noremap = true, expr = true, replace_keycodes = false }
keyset(
	"i",
	"<TAB>",
	'coc#pum#visible() ? coc#pum#next(0) : v:lua.check_back_space() ? "<TAB>" : coc#refresh()',
	opts
)
keyset("i", "<S-TAB>", [[coc#pum#visible() ? coc#pum#prev(0) : "\<C-h>"]], opts)

-- Make <CR> to accept selected completion item or notify coc.nvim to format
-- <C-g>u breaks current undo, please make your own choice

keyset(
	"i",
	"<cr>",
	[[coc#pum#visible() ? coc#pum#confirm() : "\<C-g>u\<CR>\<c-r>=coc#on_enter()\<CR>"]],
	opts
)

-- Use <c-j> to trigger snippets
keyset("i", "<c-j>", "<Plug>(coc-snippets-expand-jump)")
-- Use <c-space> to trigger completion
keyset("i", "<c-space>", "coc#refresh()", { silent = true, expr = true })

-- Use `[g` and `]g` to navigate diagnostics
-- Use `:CocDiagnostics` to get all diagnostics of current buffer in location list
keyset("n", "[g", "<Plug>(coc-diagnostic-prev)", { silent = true })
keyset("n", "]g", "<Plug>(coc-diagnostic-next)", { silent = true })

-- GoTo code navigation
keyset("n", "gd", "<Plug>(coc-definition)", { silent = true })
keyset("n", "gy", "<Plug>(coc-type-definition)", { silent = true })
keyset("n", "gi", "<Plug>(coc-implementation)", { silent = true })
keyset("n", "gr", "<Plug>(coc-references)", { silent = true })

-- Use K to show documentation in preview window
function _G.show_docs()
	local cw = vim.fn.expand "<cword>"
	if vim.fn.index({ "vim", "help" }, vim.bo.filetype) >= 0 then
		vim.api.nvim_command("h " .. cw)
	elseif vim.api.nvim_eval "coc#rpc#ready()" then
		vim.fn.CocActionAsync "doHover"
	else
		vim.api.nvim_command("!" .. vim.o.keywordprg .. " " .. cw)
	end
end
keyset("n", "K", "<CMD>lua _G.show_docs()<CR>", { silent = true })

-- Highlight the symbol and its references on a CursorHold event(cursor is idle)
vim.api.nvim_create_augroup("CocGroup", {})
vim.api.nvim_create_autocmd("CursorHold", {
	group = "CocGroup",
	command = "silent call CocActionAsync('highlight')",
	desc = "Highlight symbol under cursor on CursorHold",
})

-- Symbol renaming
keyset("n", "<leader>rn", "<Plug>(coc-rename)", { silent = true })

-- Formatting selected code
keyset("x", "<leader>f", "<Plug>(coc-format-selected)", { silent = true })
keyset("n", "<leader>f", "<Plug>(coc-format-selected)", { silent = true })

-- Setup formatexpr specified filetype(s)
vim.api.nvim_create_autocmd("FileType", {
	group = "CocGroup",
	pattern = "typescript,json",
	command = "setl formatexpr=CocAction('formatSelected')",
	desc = "Setup formatexpr specified filetype(s).",
})

-- Apply codeAction to the selected region
-- Example: `<leader>aap` for current paragraph
local opts = { silent = true, nowait = true }
keyset("x", "<leader>a", "<Plug>(coc-codeaction-selected)", opts)
keyset("n", "<leader>a", "<Plug>(coc-codeaction-selected)", opts)

-- Remap keys for apply code actions at the cursor position.
keyset("n", "<leader>ac", "<Plug>(coc-codeaction-cursor)", opts)
-- Remap keys for apply source code actions for current file.
keyset("n", "<leader>as", "<Plug>(coc-codeaction-source)", opts)
-- Apply the most preferred quickfix action on the current line.
keyset("n", "<leader>qf", "<Plug>(coc-fix-current)", opts)

-- Remap keys for apply refactor code actions.
keyset("n", "<leader>re", "<Plug>(coc-codeaction-refactor)", { silent = true })
keyset(
	"x",
	"<leader>r",
	"<Plug>(coc-codeaction-refactor-selected)",
	{ silent = true }
)
keyset(
	"n",
	"<leader>r",
	"<Plug>(coc-codeaction-refactor-selected)",
	{ silent = true }
)

-- Run the Code Lens actions on the current line
keyset("n", "<leader>cl", "<Plug>(coc-codelens-action)", opts)

-- Map function and class text objects
-- NOTE: Requires 'textDocument.documentSymbol' support from the language server
keyset("x", "if", "<Plug>(coc-funcobj-i)", opts)
keyset("o", "if", "<Plug>(coc-funcobj-i)", opts)
keyset("x", "af", "<Plug>(coc-funcobj-a)", opts)
keyset("o", "af", "<Plug>(coc-funcobj-a)", opts)
keyset("x", "ic", "<Plug>(coc-classobj-i)", opts)
keyset("o", "ic", "<Plug>(coc-classobj-i)", opts)
keyset("x", "ac", "<Plug>(coc-classobj-a)", opts)
keyset("o", "ac", "<Plug>(coc-classobj-a)", opts)

-- Remap <C-f> and <C-b> to scroll float windows/popups
---@diagnostic disable-next-line: redefined-local
local opts = { silent = true, nowait = true, expr = true }
keyset(
	"n",
	"<C-f>",
	'coc#float#has_scroll() ? coc#float#scroll(1) : "<C-f>"',
	opts
)
keyset(
	"n",
	"<C-b>",
	'coc#float#has_scroll() ? coc#float#scroll(0) : "<C-b>"',
	opts
)
keyset(
	"i",
	"<C-f>",
	'coc#float#has_scroll() ? "<c-r>=coc#float#scroll(1)<cr>" : "<Right>"',
	opts
)
keyset(
	"i",
	"<C-b>",
	'coc#float#has_scroll() ? "<c-r>=coc#float#scroll(0)<cr>" : "<Left>"',
	opts
)
keyset(
	"v",
	"<C-f>",
	'coc#float#has_scroll() ? coc#float#scroll(1) : "<C-f>"',
	opts
)
keyset(
	"v",
	"<C-b>",
	'coc#float#has_scroll() ? coc#float#scroll(0) : "<C-b>"',
	opts
)

-- Use CTRL-S for selections ranges
-- Requires 'textDocument/selectionRange' support of language server
keyset("n", "<C-s>", "<Plug>(coc-range-select)", { silent = true })
keyset("x", "<C-s>", "<Plug>(coc-range-select)", { silent = true })

-- Add `:Format` command to format current buffer
vim.api.nvim_create_user_command("Format", "call CocAction('format')", {})

-- " Add `:Fold` command to fold current buffer
vim.api.nvim_create_user_command(
	"Fold",
	"call CocAction('fold', <f-args>)",
	{ nargs = "?" }
)

-- Add `:OR` command for organize imports of the current buffer
vim.api.nvim_create_user_command(
	"OR",
	"call CocActionAsync('runCommand', 'editor.action.organizeImport')",
	{}
)

-- Add (Neo)Vim's native statusline support
-- NOTE: Please see `:h coc-status` for integrations with external plugins that
-- provide custom statusline: lightline.vim, vim-airline
vim.opt.statusline:prepend "%{coc#status()}%{get(b:,'coc_current_function','')}"

-- Mappings for CoCList
-- code actions and coc stuff
---@diagnostic disable-next-line: redefined-local
local opts = { silent = true, nowait = true }
-- Show all diagnostics
keyset("n", "<space>a", ":<C-u>CocList diagnostics<cr>", opts)
-- Manage extensions
keyset("n", "<space>m", ":<C-u>CocList extensions<cr>", opts)
-- Show commands
keyset("n", "<space>c", ":<C-u>CocList commands<cr>", opts)
-- Find symbol of current document
keyset("n", "<space>o", ":<C-u>CocList outline<cr>", opts)
-- Search workspace symbols
keyset("n", "<space>s", ":<C-u>CocList -I symbols<cr>", opts)
-- Do default action for next item
keyset("n", "<space>j", ":<C-u>CocNext<cr>", opts)
-- Do default action for previous item
keyset("n", "<space>k", ":<C-u>CocPrev<cr>", opts)
-- Resume latest coc list
keyset("n", "<space>p", ":<C-u>CocListResume<cr>", opts)