fix(#1643): preview on floating window (#1648)

* fix: preview on floating window

* chore: redrawing the tree after setting current win

* chore: ignore winleave autocmd on preview action

* fix: typo in comment

* chore: call correct window id

* chore: revert changes in focus method

* chore: check if float window is enabled before ignoring WinLeave

Author: Almo7aya

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

@@ -167,9 +167,9 @@ end
 
 -- This is only to avoid the BufEnter for nvim-tree to trigger
 -- which would cause find-file to run on an invalid file.
-local function set_current_win_no_autocmd(winid)
+local function set_current_win_no_autocmd(winid, autocmd)
   local eventignore = vim.opt.eventignore:get()
-  vim.opt.eventignore:append "BufEnter"
+  vim.opt.eventignore:append(autocmd)
   api.nvim_set_current_win(winid)
   vim.opt.eventignore = eventignore
 end
@@ -211,7 +211,15 @@ local function open_in_new_window(filename, mode, win_ids)
     cmd = string.format("edit %s", fname)
   end
 
-  set_current_win_no_autocmd(target_winid)
+  if mode == "preview" and view.View.float.enable then
+    -- ignore "WinLeave" autocmd on preview
+    -- because the registered "WinLeave"
+    -- will kill the floating window immediately
+    set_current_win_no_autocmd(target_winid, { "WinLeave", "BufEnter" })
+  else
+    set_current_win_no_autocmd(target_winid, { "BufEnter" })
+  end
+
   pcall(vim.cmd, cmd)
   lib.set_target_win()
 end