refactor(#2826): singleton View class, WIP

lua/nvim-tree/actions/node/open-file.lua

@@ -228,7 +228,7 @@ local function on_preview(buf_loaded)
       once = true,
     })
   end
-  view.focus()
+  view.View:focus()
 end
 
 local function get_target_winid(mode)

lua/nvim-tree/actions/tree/find-file.lua

@@ -45,7 +45,7 @@ function M.fn(opts)
     -- focus
     if opts.focus then
       lib.set_target_win()
-      view.focus()
+      view.View:focus()
     end
   elseif opts.open then
     -- open

lua/nvim-tree/actions/tree/open.lua

@@ -26,7 +26,7 @@ function M.fn(opts)
   if view.View:is_visible() then
     -- focus
     lib.set_target_win()
-    view.focus()
+    view.View:focus()
   else
     -- open
     lib.open({

lua/nvim-tree/api.lua

@@ -257,7 +257,7 @@ local function edit(mode, node, edit_opts)
     if mode == "tabnew" then
       vim.cmd(":tabprev")
     end
-    view.focus()
+    view.View:focus()
   end
 end
 

lua/nvim-tree/core.lua

@@ -55,7 +55,7 @@ end
 ---@return integer
 function M.get_nodes_starting_line()
   local offset = 1
-  if view.is_root_folder_visible(M.get_cwd()) then
+  if view.View:is_root_folder_visible(M.get_cwd()) then
     offset = offset + 1
   end
   if TreeExplorer and TreeExplorer.live_filter.filter then

lua/nvim-tree/explorer/init.lua

@@ -523,7 +523,7 @@ function Explorer:get_node_at_cursor()
     return
   end
 
-  if cursor[1] == 1 and view.is_root_folder_visible(core.get_cwd()) then
+  if cursor[1] == 1 and view.View:is_root_folder_visible(core.get_cwd()) then
     return self
   end
 

lua/nvim-tree/lib.lua

@@ -128,7 +128,7 @@ function M.open(opts)
   else
     open_view_and_draw()
   end
-  view.restore_tab_state()
+  view.View:restore_tab_state()
 end
 
 function M.setup(opts)

lua/nvim-tree/renderer/builder.lua

@@ -379,7 +379,7 @@ end
 
 ---@private
 function Builder:build_header()
-  if view.is_root_folder_visible(self.explorer.absolute_path) then
+  if view.View:is_root_folder_visible(self.explorer.absolute_path) then
     local root_name = self:format_root_name(self.explorer.opts.renderer.root_folder_label)
     table.insert(self.lines, root_name)
     self:insert_highlight({ "NvimTreeRootFolder" }, 0, string.len(root_name))

lua/nvim-tree/utils.lua

@@ -143,7 +143,7 @@ function M.find_node(nodes, fn)
       return node.group_next and { node.group_next } or (node.open and #node.nodes > 0 and node.nodes)
     end)
     :iterate()
-  i = require("nvim-tree.view").is_root_folder_visible() and i or i - 1
+  i = require("nvim-tree.view").View:is_root_folder_visible() and i or i - 1
   if node and node.explorer.live_filter.filter then
     i = i + 1
   end
@@ -537,7 +537,7 @@ function M.focus_file(path)
   local _, i = M.find_node(require("nvim-tree.core").get_explorer().nodes, function(node)
     return node.absolute_path == path
   end)
-  require("nvim-tree.view").set_cursor({ i + 1, 1 })
+  require("nvim-tree.view").View:set_cursor({ i + 1, 1 })
 end
 
 ---Focus node passed as parameter if visible, otherwise focus first visible parent.
@@ -557,7 +557,7 @@ function M.focus_node_or_parent(node)
     end)
 
     if found_node or node.parent == nil then
-      require("nvim-tree.view").set_cursor({ i + 1, 1 })
+      require("nvim-tree.view").View:set_cursor({ i + 1, 1 })
       break
     end
 

lua/nvim-tree/view.lua

@@ -364,7 +364,7 @@ end
 
 ---@private
 function View:grow()
-  local starts_at = M.is_root_folder_visible(require("nvim-tree.core").get_cwd()) and 1 or 0
+  local starts_at = self:is_root_folder_visible(require("nvim-tree.core").get_cwd()) and 1 or 0
   local lines = vim.api.nvim_buf_get_lines(M.get_bufnr(), starts_at, -1, false)
   -- number of columns of right-padding to indicate end of path
   local padding = self:get_size(self.padding)
@@ -534,15 +534,15 @@ end
 
 ---@param winnr number|nil
 ---@param open_if_closed boolean|nil
-function M.focus(winnr, open_if_closed)
+function View:focus(winnr, open_if_closed)
   local wnr = winnr or M.get_winnr()
 
   if vim.api.nvim_win_get_tabpage(wnr or 0) ~= vim.api.nvim_win_get_tabpage(0) then
-    M.close()
+    self:close()
-    M.View:open()
+    self:open()
     wnr = M.get_winnr()
-  elseif open_if_closed and not M.View:is_visible() then
+  elseif open_if_closed and not self:is_visible() then
-    M.View:open()
+    self:open()
   end
 
   if wnr then
@@ -553,12 +553,12 @@ end
 --- Retrieve the winid of the open tree.
 ---@param opts ApiTreeWinIdOpts|nil
 ---@return number|nil winid unlike get_winnr(), this returns nil if the nvim-tree window is not visible
-function M.winid(opts)
+function View:winid(opts)
   local tabpage = opts and opts.tabpage
   if tabpage == 0 then
     tabpage = vim.api.nvim_get_current_tabpage()
   end
-  if M.View:is_visible({ tabpage = tabpage }) then
+  if self:is_visible({ tabpage = tabpage }) then
     return M.get_winnr(tabpage)
   else
     return nil
@@ -566,9 +566,9 @@ function M.winid(opts)
 end
 
 --- Restores the state of a NvimTree window if it was initialized before.
-function M.restore_tab_state()
+function View:restore_tab_state()
   local tabpage = vim.api.nvim_get_current_tabpage()
-  M.View:set_cursor(M.View.cursors[tabpage])
+  self:set_cursor(self.cursors[tabpage])
 end
 
 --- Returns the window number for nvim-tree within the tabpage specified
@@ -638,8 +638,8 @@ end
 
 ---@param cwd string|nil
 ---@return boolean
-function M.is_root_folder_visible(cwd)
+function View:is_root_folder_visible(cwd)
-  return cwd ~= "/" and not M.View.hide_root_folder
+  return cwd ~= "/" and not self.hide_root_folder
 end
 
 -- used on ColorScheme event