folds

lua/custom/plugins.lua

@@ -478,6 +478,117 @@ local plugins = {
       }
     end,
   },
+  {
+    "sidebar-nvim/sidebar.nvim",
+    cmd = { "SidebarNvimToggle", "SidebarNvimOpen" },
+    config = function()
+      require("sidebar-nvim").setup {
+        bindings = {
+          ["q"] = function()
+            require("sidebar-nvim").close()
+          end,
+        },
+      }
+    end,
+  },
+  {
+    "dhruvasagar/vim-table-mode",
+    lazy = false,
+    -- <Leader>tm is automatically set for toggle
+    -- see <Leader>t menu
+  },
+  {
+    "kevinhwang91/nvim-ufo",
+    event = { "BufReadPost", "BufNewFile" },
+    -- stylua: ignore
+    keys = {
+        { 'zR', function() require('ufo').openAllFolds() end },
+        { 'zM', function() require('ufo').closeAllFolds() end },
+    },
+    dependencies = {
+      "kevinhwang91/promise-async",
+      "nvim-treesitter/nvim-treesitter",
+      "neovim/nvim-lspconfig",
+    },
+    opts = function()
+      -- lsp->treesitter->indent
+      ---@param bufnr number
+      ---@return table
+      local function customizeSelector(bufnr)
+        local function handleFallbackException(err, providerName)
+          if type(err) == "string" and err:match "UfoFallbackException" then
+            return require("ufo").getFolds(bufnr, providerName)
+          else
+            return require("promise").reject(err)
+          end
+        end
+
+        return require("ufo")
+          .getFolds(bufnr, "lsp")
+          :catch(function(err)
+            return handleFallbackException(err, "treesitter")
+          end)
+          :catch(function(err)
+            return handleFallbackException(err, "indent")
+          end)
+      end
+
+      local ft_providers = {
+        vim = "indent",
+        python = { "indent" },
+        git = "",
+        help = "",
+        qf = "",
+        fugitive = "",
+        fugitiveblame = "",
+        ["neo-tree"] = "",
+      }
+
+      return {
+        open_fold_hl_timeout = 0,
+        preview = {
+          win_config = {
+            border = { "", "─", "", "", "", "─", "", "" },
+            winhighlight = "Normal:Folded",
+            winblend = 10,
+          },
+          mappings = {
+            scrollU = "<C-u>",
+            scrollD = "<C-d>",
+            jumpTop = "[",
+            jumpBot = "]",
+          },
+        },
+
+        -- Select the fold provider.
+        provider_selector = function(_, filetype, _)
+          return ft_providers[filetype] or customizeSelector
+        end,
+
+        -- Display text for folded lines.
+        ---@param text table
+        ---@param lnum integer
+        ---@param endLnum integer
+        ---@param width integer
+        ---@return table
+        fold_virt_text_handler = function(text, lnum, endLnum, width)
+          local suffix = " 󰇘 "
+          local lines = (" 󰁂 %d "):format(endLnum - lnum)
+
+          local cur_width = 0
+          for _, section in ipairs(text) do
+            cur_width = cur_width + vim.fn.strdisplaywidth(section[1])
+          end
+
+          suffix = suffix .. (" "):rep(width - cur_width - vim.fn.strdisplaywidth(lines) - 3)
+
+          table.insert(text, { suffix, "UfoFoldedEllipsis" })
+          table.insert(text, { lines, "Folded" })
+          return text
+        end,
+      }
+    end,
+  },
 }
 
 return plugins