From 09eb34acdb71b872738ce9e11a57ab1d09ab040d Mon Sep 17 00:00:00 2001
From: Gustavo Sampaio <gbritosampaio@gmail.com>
Date: Sun, 8 Dec 2024 15:14:54 -0300
Subject: [PATCH] only use the previewwindow if requested by the user

---
 lua/oil/init.lua |  9 +++------
 lua/oil/util.lua | 11 +++++++++--
 2 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/lua/oil/init.lua b/lua/oil/init.lua
index 72d5538a..3e40d510 100644
--- a/lua/oil/init.lua
+++ b/lua/oil/init.lua
@@ -374,9 +374,6 @@ M.open = function(dir)
   if config.buf_options.buflisted ~= nil then
     vim.api.nvim_set_option_value("buflisted", config.buf_options.buflisted, { buf = 0 })
   end
-
-  -- If preview window exists, update its content
-  update_preview_window()
 end
 
 ---@class oil.CloseOpts
@@ -454,7 +451,7 @@ M.open_preview = function(opts, callback)
     end
   end
 
-  local preview_win = util.get_preview_win()
+  local preview_win = util.get_preview_win({include_not_owned = true})
   local prev_win = vim.api.nvim_get_current_win()
   local bufnr = vim.api.nvim_get_current_buf()
 
@@ -501,6 +498,7 @@ M.open_preview = function(opts, callback)
 
       preview_win = vim.api.nvim_open_win(bufnr, true, win_opts)
       vim.api.nvim_set_option_value("previewwindow", true, { scope = "local", win = preview_win })
+      vim.api.nvim_win_set_var(preview_win, "oil_preview", true)
       vim.api.nvim_set_current_win(prev_win)
     elseif vim.fn.has("nvim-0.9") == 1 then
       vim.api.nvim_win_set_config(preview_win, { title = entry_title })
@@ -568,6 +566,7 @@ M.open_preview = function(opts, callback)
     end
 
     vim.api.nvim_set_option_value("previewwindow", true, { scope = "local", win = 0 })
+    vim.api.nvim_win_set_var(0, "oil_preview", true)
     for k, v in pairs(config.preview_win.win_options) do
       vim.api.nvim_set_option_value(k, v, { scope = "local", win = preview_win })
     end
@@ -764,8 +763,6 @@ M.select = function(opts, callback)
       end)
     end
 
-    update_preview_window()
-
     finish()
   end)
 end
diff --git a/lua/oil/util.lua b/lua/oil/util.lua
index 441421b9..e209296a 100644
--- a/lua/oil/util.lua
+++ b/lua/oil/util.lua
@@ -668,10 +668,17 @@ M.hack_around_termopen_autocmd = function(prev_mode)
   end, 10)
 end
 
+---@param opts {include_not_owned?: boolean}
 ---@return nil|integer
-M.get_preview_win = function()
+M.get_preview_win = function(opts)
+  opts = opts or {}
+
   for _, winid in ipairs(vim.api.nvim_tabpage_list_wins(0)) do
-    if vim.api.nvim_win_is_valid(winid) and vim.wo[winid].previewwindow then
+    if
+      vim.api.nvim_win_is_valid(winid)
+      and vim.wo[winid].previewwindow
+      and (opts.include_not_owned or vim.w[winid]["oil_preview"])
+    then
       return winid
     end
   end