custom v text

nvim/.config/nvim/lua/plugins/ufo-folding.lua

@@ -8,7 +8,47 @@ return {
 		vim.o.foldenable = true
 		vim.keymap.set("n", "zR", require("ufo").openAllFolds)
 		vim.keymap.set("n", "zM", require("ufo").closeAllFolds)
+
+		local handler = function(virtText, lnum, endLnum, width, truncate, x)
+			-- local newVirtText = {}
+			-- local suffix = (" 󰁂 %d "):format(endLnum - lnum)
+			-- local sufWidth = vim.fn.strdisplaywidth(suffix)
+			-- local targetWidth = width - sufWidth
+			-- local curWidth = 0
+			-- for _, chunk in ipairs(virtText) do
+			-- 	local chunkText = chunk[1]
+			-- 	local chunkWidth = vim.fn.strdisplaywidth(chunkText)
+			-- 	if targetWidth > curWidth + chunkWidth then
+			-- 		table.insert(newVirtText, chunk)
+			-- 	else
+			-- 		chunkText = truncate(chunkText, targetWidth - curWidth)
+			-- 		local hlGroup = chunk[2]
+			-- 		table.insert(newVirtText, { chunkText, hlGroup })
+			-- 		chunkWidth = vim.fn.strdisplaywidth(chunkText)
+			-- 		-- str width returned from truncate() may less than 2nd argument, need padding
+			-- 		if curWidth + chunkWidth < targetWidth then
+			-- 			suffix = suffix .. (" "):rep(targetWidth - curWidth - chunkWidth)
+			-- 		end
+			-- 		break
+			-- 	end
+			-- 	curWidth = curWidth + chunkWidth
+			-- end
+			-- table.insert(newVirtText, { suffix, "MoreMsg" })
+			return virtText
+		end
+
 		require("ufo").setup({
+			fold_virt_text_handler = handler,
+			open_fold_hl_timeout = 0,
+			close_fold_kinds_for_ft = {},
+			enable_get_fold_virt_text = true,
+			preview = {
+				win_config = {
+					border = { "", "─", "", "", "", "─", "", "" },
+					winhighlight = "Normal:Folded",
+					winblend = 0,
+				},
+			},
 			provider_selector = function(bufnr, filetype, buftype)
 				return { "treesitter", "indent" }
 			end,