feat(nvim): add macro recording indicator plugin

Author: kutsan

home/dot_config/exact_nvim/exact_plugin/exact_autocmds/macro.lua

@@ -0,0 +1,77 @@
+local api = vim.api
+local win_id = nil
+local buf_id = nil
+
+local config = {
+	row = 2,
+	col_offset = 4,
+}
+
+local function close_banner()
+	if win_id and api.nvim_win_is_valid(win_id) then
+		api.nvim_win_close(win_id, true)
+	end
+
+	if buf_id and api.nvim_buf_is_valid(buf_id) then
+		api.nvim_buf_delete(buf_id, { force = true })
+	end
+
+	win_id = nil
+	buf_id = nil
+end
+
+local function open_banner()
+	local reg = vim.fn.reg_recording()
+
+	if reg == '' then
+		return
+	end
+
+	close_banner()
+
+	local text = string.format(' ● REC @%s ', reg)
+
+	buf_id = api.nvim_create_buf(false, true)
+	api.nvim_buf_set_lines(buf_id, 0, -1, false, { text })
+
+	local col = vim.o.columns - #text - config.col_offset
+
+	win_id = api.nvim_open_win(buf_id, false, {
+		relative = 'editor',
+		width = #text,
+		height = 1,
+		row = config.row,
+		col = col,
+		style = 'minimal',
+		border = 'none',
+		focusable = false,
+		zindex = 150,
+	})
+
+	api.nvim_set_option_value(
+		'winhighlight',
+		'Normal:DiagnosticError',
+		{ win = win_id }
+	)
+end
+
+local group = api.nvim_create_augroup('MacroRecordingBanner', { clear = true })
+
+api.nvim_create_autocmd(
+	'RecordingEnter',
+	{ group = group, callback = open_banner }
+)
+api.nvim_create_autocmd('RecordingLeave', {
+	group = group,
+	callback = function()
+		vim.defer_fn(close_banner, 50)
+	end,
+})
+api.nvim_create_autocmd('VimResized', {
+	group = group,
+	callback = function()
+		if win_id and api.nvim_win_is_valid(win_id) then
+			open_banner()
+		end
+	end,
+})