From 2563fa4d71d1c384e12d2668739a45b89b68f6dc Mon Sep 17 00:00:00 2001
From: milanglacier <dev@milanglacier.com>
Date: Fri, 1 Nov 2024 03:03:18 -0400
Subject: [PATCH] feat: add option `always_show_tabline` to control whether
 show `tabline` when there are only one tab. (#1013)

* feat: add option `always_show_tabline`.
---------

Co-authored-by: shadmansaleh <13149513+shadmansaleh@users.noreply.github.com>
---
 README.md                   | 5 +++++
 lua/lualine.lua             | 2 +-
 lua/lualine/config.lua      | 1 +
 tests/spec/lualine_spec.lua | 1 +
 4 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 238b283b8..7605da61b 100644
--- a/README.md
+++ b/README.md
@@ -139,6 +139,7 @@ require('lualine').setup {
     },
     ignore_focus = {},
     always_divide_middle = true,
+    always_show_tabline = true,
     globalstatus = false,
     refresh = {
       statusline = 1000,
@@ -378,6 +379,10 @@ options = {
                                -- can't take over the entire statusline even
                                -- if neither of 'x', 'y' or 'z' are present.
 
+  always_show_tabline = true -- When set to true, if you have configured lualine for displaying tabline
+                          -- then tabline will always show. If set to false, then tabline will be displayed
+                          -- only when there are more than 1 tab. (see :h showtabline)
+
   globalstatus = false,        -- enable global statusline (have a single statusline
                                -- at bottom of neovim instead of one for  every window).
                                -- This feature is only available in neovim 0.7 and higher.
diff --git a/lua/lualine.lua b/lua/lualine.lua
index 609304929..0e3b1b4dd 100644
--- a/lua/lualine.lua
+++ b/lua/lualine.lua
@@ -479,7 +479,7 @@ local function set_tabline(hide)
       "call v:lua.require'lualine'.refresh({'kind': 'tabpage', 'place': ['tabline'], 'trigger': 'autocmd'})",
       'lualine_tal_refresh'
     )
-    modules.nvim_opts.set('showtabline', 2, { global = true })
+    modules.nvim_opts.set('showtabline', config.options.always_show_tabline and 2 or 1, { global = true })
     timers.halt_tal_refresh = false
   else
     modules.nvim_opts.restore('tabline', { global = true })
diff --git a/lua/lualine/config.lua b/lua/lualine/config.lua
index cc92099d9..56f56ecb7 100644
--- a/lua/lualine/config.lua
+++ b/lua/lualine/config.lua
@@ -18,6 +18,7 @@ local config = {
     },
     ignore_focus = {},
     always_divide_middle = true,
+    always_show_tabline = true,
     globalstatus = vim.go.laststatus == 3,
     refresh = {
       statusline = 1000,
diff --git a/tests/spec/lualine_spec.lua b/tests/spec/lualine_spec.lua
index eb46a3ce1..b3990f784 100644
--- a/tests/spec/lualine_spec.lua
+++ b/tests/spec/lualine_spec.lua
@@ -21,6 +21,7 @@ describe('Lualine', function()
         },
         ignore_focus = {},
         always_divide_middle = true,
+        always_show_tabline = true,
         globalstatus = false,
         refresh = {
           statusline = 1000,