refactor(#2826): move view to instanced window class (#3153)

* refactor(#2826): singleton View class, WIP * refactor(#2826): singleton View class, WIP * refactor(#2826): singleton View class, WIP * refactor(#2826): singleton View class, WIP * refactor(#2826): singleton View class, WIP * refactor(#2826): singleton View class, WIP * refactor(#2826): singleton View class, WIP * refactor(#2826): singleton View class * refactor(#2826): View is an Explorer member * refactor(#2826): move autocmds to Explorer * refactor(#2826): API uses Explorer's View * refactor(#2826): move View into Explorer package * refactor(#2826): retain necessary view globals * refactor(#2826): move all winhl to appearance constants * refactor(#2826): add lifecycle logging to all Explorer members * refactor(#2826): fix bad cherry-pick * refactor(#2826): better enumerate_options function * refactor(#2826): add View.tab_line for debugging * refactor(#2826): default lifecycle log off * refactor(#2826): add experimental.multi_instance_debug, split globals out of view, move diagnostics to its own module * refactor(#2826): instrument View:get_winnr * refactor(#2826): instrument View:setup_tabpage * refactor(#2826): instrument View:set_current_win, View:prevent_buffer_override * refactor(#2826): instrument View:get_bufnr * refactor(#2826): track member bufnr -> winid with global * refactor(#2826): tidy experiment names and logs * vim: nvim-tree: track bufnr via buffer-update channel * vim: nvim-tree: more logging * vim: nvim-tree: revert: track bufnr via buffer-update channel * refactor(#2826): notify error on view winid and bufnr mismatches * refactor(#2826): notify error on view winid and bufnr mismatches * refactor(#2826): explorer init logging
2025-06-19 15:45:55 +10:00
parent d54a1875a9
commit 0a06f65bf0
35 changed files with 1249 additions and 830 deletions
--- a/lua/nvim-tree/multi-instance-debug.lua
+++ b/lua/nvim-tree/multi-instance-debug.lua
@@ -0,0 +1,112 @@
+local globals = require("nvim-tree.globals")
+
+local M = {}
+
+--- Debugging only.
+--- Tabs show TABPAGES winnr and BUFNR_PER_TAB bufnr for the tab.
+--- Orphans for inexistent tab_ids are shown at the right.
+--- lib.target_winid is always shown at the right next to a close button.
+--- Enable with:
+---   vim.opt.tabline = "%!v:lua.require('nvim-tree.explorer.view').tab_line()"
+---   vim.opt.showtabline = 2
+---@return string
+function M.tab_line()
+  local tab_ids = vim.api.nvim_list_tabpages()
+  local cur_tab_id = vim.api.nvim_get_current_tabpage()
+
+  local bufnr_per_tab = vim.deepcopy(globals.BUFNR_PER_TAB)
+  local tabpages = vim.deepcopy(globals.TABPAGES)
+
+  local tl = "%#TabLine#"
+
+  for i, tab_id in ipairs(tab_ids) do
+    -- click to select
+    tl = tl .. "%" .. i .. "T"
+
+    -- style
+    if tab_id == cur_tab_id then
+      tl = tl .. "%#StatusLine#|"
+    else
+      tl = tl .. "|%#TabLine#"
+    end
+
+    -- tab_id itself
+    tl = tl .. " t" .. tab_id
+
+    -- winnr, if present
+    local tp = globals.TABPAGES[tab_id]
+    if tp then
+      tl = tl .. " w" .. (tp.winnr or "nil")
+    else
+      tl = tl .. "      "
+    end
+
+    -- bufnr, if present
+    local bpt = globals.BUFNR_PER_TAB[tab_id]
+    if bpt then
+      tl = tl .. " b" .. bpt
+    else
+      tl = tl .. "   "
+    end
+
+    tl = tl .. " "
+
+    -- remove actively mapped
+    bufnr_per_tab[tab_id] = nil
+    tabpages[tab_id] = nil
+  end
+
+  -- close last and reset
+  tl = tl .. "|%#CursorLine#%T"
+
+  -- collect orphans
+  local orphans = {}
+  for tab_id, bufnr in pairs(bufnr_per_tab) do
+    orphans[tab_id] = orphans[tab_id] or {}
+    orphans[tab_id].bufnr = bufnr
+  end
+  for tab_id, tp in pairs(tabpages) do
+    orphans[tab_id] = orphans[tab_id] or {}
+    orphans[tab_id].winnr = tp.winnr
+  end
+
+  -- right-align
+  tl = tl .. "%=%#TabLine#"
+
+  -- print orphans
+  for tab_id, orphan in pairs(orphans) do
+    -- inexistent tab
+    tl = tl .. "%#error#| t" .. tab_id
+
+    -- maybe winnr
+    if orphan.winnr then
+      tl = tl .. " w" .. (orphan.winnr or "nil")
+    else
+      tl = tl .. "      "
+    end
+
+    -- maybe bufnr
+    if orphan.bufnr then
+      tl = tl .. " b" .. orphan.bufnr
+    else
+      tl = tl .. "   "
+    end
+    tl = tl .. " "
+  end
+
+  -- target win id and close button
+  tl = tl .. "|%#TabLine# twi" .. (require("nvim-tree.lib").target_winid or "?") .. " %999X| X |"
+
+  return tl
+end
+
+function M.setup(opts)
+  if not opts.experimental.multi_instance then
+    return
+  end
+
+  vim.opt.tabline = "%!v:lua.require('nvim-tree.multi-instance-debug').tab_line()"
+  vim.opt.showtabline = 2
+end
+
+return M