refactor(#2875): multi instance renderer (#2900)

* refactor(#2875): multi instance renderer

* refactor(#2875): multi instance renderer

* refactor(#2875): multi instance renderer

* refactor(#2875): multi instance renderer

* refactor(#2875): deal with some cyclic require

* refactor(#2875): multi instance renderer

* refactor(#2875): multi instance renderer

* refactor(#2875): multi instance renderer

* refactor(#2875): multi instance renderer

* refactor(#2875): multi instance renderer

* refactor(#2875): multi instance renderer

* refactor(#2875): multi instance renderer

* refactor(#2875): multi instance renderer

* refactor(#2875): multi instance renderer

* refactor(#2875): multi instance renderer

* refactor(#2875): multi instance renderer

lua/nvim-tree.lua

@@ -1,15 +1,10 @@
 local lib = require "nvim-tree.lib"
 local log = require "nvim-tree.log"
 local appearance = require "nvim-tree.appearance"
-local renderer = require "nvim-tree.renderer"
 local view = require "nvim-tree.view"
-local commands = require "nvim-tree.commands"
 local utils = require "nvim-tree.utils"
 local actions = require "nvim-tree.actions"
-local legacy = require "nvim-tree.legacy"
 local core = require "nvim-tree.core"
-local git = require "nvim-tree.git"
-local buffers = require "nvim-tree.buffers"
 local notify = require "nvim-tree.notify"
 
 local _config = {}
@@ -97,7 +92,11 @@ function M.tab_enter()
       end
     end
     view.open { focus_tree = false }
-    renderer.draw()
+
+    local explorer = core.get_explorer()
+    if explorer then
+      explorer.renderer:draw()
+    end
   end
 end
 
@@ -179,7 +178,11 @@ local function setup_autocommands(opts)
     callback = function()
       appearance.setup()
       view.reset_winhl()
-      renderer.draw()
+
+      local explorer = core.get_explorer()
+      if explorer then
+        explorer.renderer:draw()
+      end
     end,
   })
 
@@ -217,7 +220,7 @@ local function setup_autocommands(opts)
         return
       end
       if
-        (explorer.filters.config.filter_no_buffer or renderer.config.highlight_opened_files ~= "none") and vim.bo[data.buf].buftype == ""
+        (explorer.filters.config.filter_no_buffer or explorer.opts.highlight_opened_files ~= "none") and vim.bo[data.buf].buftype == ""
       then
         utils.debounce("Buf:filter_buffer", opts.view.debounce_delay, function()
           explorer:reload_explorer()
@@ -234,7 +237,7 @@ local function setup_autocommands(opts)
         return
       end
       if
-        (explorer.filters.config.filter_no_buffer or renderer.config.highlight_opened_files ~= "none") and vim.bo[data.buf].buftype == ""
+        (explorer.filters.config.filter_no_buffer or explorer.opts.highlight_opened_files ~= "none") and vim.bo[data.buf].buftype == ""
       then
         utils.debounce("Buf:filter_buffer", opts.view.debounce_delay, function()
           explorer:reload_explorer()
@@ -351,7 +354,7 @@ local function setup_autocommands(opts)
     create_nvim_tree_autocmd({ "BufModifiedSet", "BufWritePost" }, {
       callback = function()
         utils.debounce("Buf:modified", opts.view.debounce_delay, function()
-          buffers.reload_modified()
+          require("nvim-tree.buffers").reload_modified()
           local explorer = core.get_explorer()
           if explorer then
             explorer:reload_explorer()
@@ -801,7 +804,7 @@ function M.purge_all_state()
   view.close_all_tabs()
   view.abandon_all_windows()
   if core.get_explorer() ~= nil then
-    git.purge_state()
+    require("nvim-tree.git").purge_state()
     core.reset_explorer()
   end
 end
@@ -817,7 +820,7 @@ function M.setup(conf)
 
   localise_default_opts()
 
-  legacy.migrate_legacy_options(conf or {})
+  require("nvim-tree.legacy").migrate_legacy_options(conf or {})
 
   validate_options(conf)
 
@@ -851,7 +854,7 @@ function M.setup(conf)
   require("nvim-tree.git.utils").setup(opts)
   require("nvim-tree.view").setup(opts)
   require("nvim-tree.lib").setup(opts)
-  require("nvim-tree.renderer").setup(opts)
+  require("nvim-tree.renderer.components").setup(opts)
   require("nvim-tree.buffers").setup(opts)
   require("nvim-tree.help").setup(opts)
   require("nvim-tree.watcher").setup(opts)
@@ -863,7 +866,7 @@ function M.setup(conf)
 
   if vim.g.NvimTreeSetup ~= 1 then
     -- first call to setup
-    commands.setup()
+    require("nvim-tree.commands").setup()
   else
     -- subsequent calls to setup
     M.purge_all_state()

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

@@ -1,7 +1,6 @@
 local log = require "nvim-tree.log"
 local view = require "nvim-tree.view"
 local utils = require "nvim-tree.utils"
-local renderer = require "nvim-tree.renderer"
 local core = require "nvim-tree.core"
 local Iterator = require "nvim-tree.iterators.node-iterator"
 
@@ -76,7 +75,7 @@ function M.fn(path)
     :iterate()
 
   if found and view.is_visible() then
-    renderer.draw()
+    explorer.renderer:draw()
     view.set_cursor { line, 0 }
   end
 

lua/nvim-tree/actions/fs/clipboard.lua

@@ -4,7 +4,6 @@ local utils = require "nvim-tree.utils"
 local core = require "nvim-tree.core"
 local events = require "nvim-tree.events"
 local notify = require "nvim-tree.notify"
-local renderer = require "nvim-tree.renderer"
 
 local find_file = require("nvim-tree.actions.finders.find-file").fn
 
@@ -193,23 +192,23 @@ function Clipboard:clear_clipboard()
   self.data[ACTION.copy] = {}
   self.data[ACTION.cut] = {}
   notify.info "Clipboard has been emptied."
-  renderer.draw()
+  self.explorer.renderer:draw()
 end
 
 ---Copy one node
 ---@param node Node
 function Clipboard:copy(node)
   utils.array_remove(self.data[ACTION.cut], node)
   toggle(node, self.data[ACTION.copy])
-  renderer.draw()
+  self.explorer.renderer:draw()
 end
 
 ---Cut one node
 ---@param node Node
 function Clipboard:cut(node)
   utils.array_remove(self.data[ACTION.copy], node)
   toggle(node, self.data[ACTION.cut])
-  renderer.draw()
+  self.explorer.renderer:draw()
 end
 
 ---Paste cut or cop

lua/nvim-tree/actions/moves/parent.lua

@@ -1,4 +1,3 @@
-local renderer = require "nvim-tree.renderer"
 local view = require "nvim-tree.view"
 local utils = require "nvim-tree.utils"
 local core = require "nvim-tree.core"
@@ -11,11 +10,16 @@ local M = {}
 function M.fn(should_close)
   should_close = should_close or false
 
+  local explorer = core.get_explorer()
+
   return function(node)
     node = lib.get_last_group_node(node)
     if should_close and node.open then
       node.open = false
-      return renderer.draw()
+      if explorer then
+        explorer.renderer:draw()
+      end
+      return
     end
 
     local parent = utils.get_parent_of_group(node).parent
@@ -31,7 +35,9 @@ function M.fn(should_close)
     view.set_cursor { line + 1, 0 }
     if should_close then
       parent.open = false
-      renderer.draw()
+      if explorer then
+        explorer.renderer:draw()
+      end
     end
   end
 end

lua/nvim-tree/actions/root/change-dir.lua

@@ -91,7 +91,10 @@ M.force_dirchange = add_profiling_to(function(foldername, should_open_view)
   if should_open_view then
     require("nvim-tree.lib").open()
   else
-    require("nvim-tree.renderer").draw()
+    local explorer = core.get_explorer()
+    if explorer then
+      explorer.renderer:draw()
+    end
   end
 end)
 

lua/nvim-tree/actions/tree/modifiers/collapse-all.lua

@@ -1,4 +1,3 @@
-local renderer = require "nvim-tree.renderer"
 local utils = require "nvim-tree.utils"
 local core = require "nvim-tree.core"
 local lib = require "nvim-tree.lib"
@@ -46,7 +45,7 @@ function M.fn(keep_buffers)
     end)
     :iterate()
 
-  renderer.draw()
+  explorer.renderer:draw()
   utils.focus_node_or_parent(node)
 end
 

lua/nvim-tree/actions/tree/modifiers/expand-all.lua

@@ -1,5 +1,4 @@
 local core = require "nvim-tree.core"
-local renderer = require "nvim-tree.renderer"
 local Iterator = require "nvim-tree.iterators.node-iterator"
 local notify = require "nvim-tree.notify"
 local lib = require "nvim-tree.lib"
@@ -65,11 +64,14 @@ end
 
 ---@param base_node table
 function M.fn(base_node)
-  local node = base_node.nodes and base_node or core.get_explorer()
+  local explorer = core.get_explorer()
+  local node = base_node.nodes and base_node or explorer
   if gen_iterator()(node) then
     notify.warn("expansion iteration was halted after " .. M.MAX_FOLDER_DISCOVERY .. " discovered folders")
   end
-  renderer.draw()
+  if explorer then
+    explorer.renderer:draw()
+  end
 end
 
 function M.setup(opts)

lua/nvim-tree/core.lua

@@ -1,5 +1,4 @@
 local events = require "nvim-tree.events"
-local explorer = require "nvim-tree.explorer"
 local view = require "nvim-tree.view"
 local log = require "nvim-tree.log"
 
@@ -16,7 +15,7 @@ function M.init(foldername)
   if TreeExplorer then
     TreeExplorer:destroy()
   end
-  TreeExplorer = explorer:new(foldername)
+  TreeExplorer = require("nvim-tree.explorer"):new(foldername)
   if not first_init_done then
     events._dispatch_ready()
     first_init_done = true

lua/nvim-tree/diagnostics.lua

@@ -1,3 +1,4 @@
+local core = require "nvim-tree.core"
 local utils = require "nvim-tree.utils"
 local view = require "nvim-tree.view"
 local log = require "nvim-tree.log"
@@ -165,7 +166,10 @@ function M.update()
     end
     log.profile_end(profile)
     if view.is_buf_valid(view.get_bufnr()) then
-      require("nvim-tree.renderer").draw()
+      local explorer = core.get_explorer()
+      if explorer then
+        explorer.renderer:draw()
+      end
     end
   end)
 end

lua/nvim-tree/explorer/init.lua

@@ -2,7 +2,6 @@ local builders = require "nvim-tree.explorer.node-builders"
 local git = require "nvim-tree.git"
 local log = require "nvim-tree.log"
 local notify = require "nvim-tree.notify"
-local renderer = {} -- circular dependency, will become a member
 local utils = require "nvim-tree.utils"
 local view = require "nvim-tree.view"
 local watch = require "nvim-tree.explorer.watch"
@@ -13,19 +12,23 @@ local NodeIterator = require "nvim-tree.iterators.node-iterator"
 local Watcher = require "nvim-tree.watcher"
 
 local Filters = require "nvim-tree.explorer.filters"
-local Marks = {} -- circular dependencies
+local Marks = require "nvim-tree.marks"
 local LiveFilter = require "nvim-tree.explorer.live-filter"
 local Sorters = require "nvim-tree.explorer.sorters"
-local Clipboard = {} -- circular dependencies
+local Clipboard = require "nvim-tree.actions.fs.clipboard"
+local Renderer = require "nvim-tree.renderer"
 
 local FILTER_REASON = require("nvim-tree.enum").FILTER_REASON
 
 local config
 
 ---@class Explorer
+---@field opts table user options
 ---@field absolute_path string
 ---@field nodes Node[]
 ---@field open boolean
+---@field watcher Watcher|nil
+---@field renderer Renderer
 ---@field filters Filters
 ---@field live_filter LiveFilter
 ---@field sorters Sorter
@@ -48,17 +51,19 @@ function Explorer:new(path)
     return
   end
 
-  ---@class Explorer
-  local o = setmetatable({
+  local o = {
+    opts = config,
     absolute_path = path,
     nodes = {},
     open = true,
     sorters = Sorters:new(config),
-  }, Explorer)
+  }
+
   setmetatable(o, self)
   self.__index = self
 
   o.watcher = watch.create_watcher(o)
+  o.renderer = Renderer:new(config, o)
   o.filters = Filters:new(config, o)
   o.live_filter = LiveFilter:new(config, o)
   o.marks = Marks:new(config, o)
@@ -454,7 +459,7 @@ function Explorer:reload_explorer()
   local projects = git.reload()
   self:refresh_nodes(projects)
   if view.is_visible() then
-    renderer.draw()
+    self.renderer:draw()
   end
   event_running = false
 end
@@ -467,19 +472,14 @@ function Explorer:reload_git()
 
   local projects = git.reload()
   explorer_node.reload_node_status(self, projects)
-  renderer.draw()
+  self.renderer:draw()
   event_running = false
 end
 
 function Explorer.setup(opts)
   config = opts
   require("nvim-tree.explorer.node").setup(opts)
   require("nvim-tree.explorer.watch").setup(opts)
-
-  renderer = require "nvim-tree.renderer"
-
-  Marks = require "nvim-tree.marks"
-  Clipboard = require "nvim-tree.actions.fs.clipboard"
 end
 
 return Explorer

lua/nvim-tree/explorer/live-filter.lua

@@ -23,10 +23,6 @@ function LiveFilter:new(opts, explorer)
   return o
 end
 
-local function redraw()
-  require("nvim-tree.renderer").draw()
-end
-
 ---@param node_ Node|nil
 local function reset_filter(self, node_)
   node_ = node_ or self.explorer
@@ -129,7 +125,7 @@ local function record_char(self)
   vim.schedule(function()
     self.filter = vim.api.nvim_buf_get_lines(overlay_bufnr, 0, -1, false)[1]
     self:apply_filter()
-    redraw()
+    self.explorer.renderer:draw()
   end)
 end
 
@@ -199,7 +195,7 @@ function LiveFilter:start_filtering()
   view.View.live_filter.prev_focused_node = require("nvim-tree.lib").get_node_at_cursor()
   self.filter = self.filter or ""
 
-  redraw()
+  self.explorer.renderer:draw()
   local row = require("nvim-tree.core").get_nodes_starting_line() - 1
   local col = #self.prefix > 0 and #self.prefix - 1 or 1
   view.set_cursor { row, col }
@@ -215,7 +211,7 @@ function LiveFilter:clear_filter()
 
   self.filter = nil
   reset_filter(self)
-  redraw()
+  self.explorer.renderer:draw()
 
   if node then
     utils.focus_file(node.absolute_path)