From 73fd0a2f26545fb4e0a6a79a91946ef991a23879 Mon Sep 17 00:00:00 2001
From: "RingOfStorms (Joshua Bell)" <ringofstorms@gmail.com>
Date: Tue, 18 Feb 2025 19:33:27 -0600
Subject: [PATCH] better tab behavior

---
 lua/keymaps.lua    |   5 --
 lua/tools/tabs.lua | 148 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 148 insertions(+), 5 deletions(-)
 create mode 100644 lua/tools/tabs.lua

diff --git a/lua/keymaps.lua b/lua/keymaps.lua
index 91ac83e..2f6d5a0 100644
--- a/lua/keymaps.lua
+++ b/lua/keymaps.lua
@@ -109,11 +109,6 @@ U.keymaps({
 	{ "<C-4>", "<End>", mode = { "i", "c" }, desc = "Movements in insert/command mode" },
 	{ "<C-6>", "<Home>", mode = { "i", "c" }, desc = "Movements in insert/command mode" },
 
-	-- Tabs
-	{ "<leader>tn", "<cmd>tabnew<cr>", desc = "Create new tab", mode = nvx },
-	{ "<leader>tq", "<cmd>tabclose<cr>", desc = "Close current tab", mode = nvx },
-	{ "H", "<cmd>tabprevious<cr>", desc = "Move to previous tab" },
-	{ "L", "<cmd>tabnext<cr>", desc = "Move to next tab" },
 
 	-- LSP/IDE/
 	{
diff --git a/lua/tools/tabs.lua b/lua/tools/tabs.lua
new file mode 100644
index 0000000..ddb5802
--- /dev/null
+++ b/lua/tools/tabs.lua
@@ -0,0 +1,148 @@
+local function reindex_tabs()
+	local tabs = vim.fn.gettabinfo()
+	for i, tab in ipairs(tabs) do
+		vim.cmd(string.format("silent! %dtabn", tab.tabnr))
+		if i ~= tab.tabnr then
+			vim.cmd(string.format("silent! tabmove %d", i - 1))
+		end
+	end
+end
+
+local function switch_to_tab(tab_number)
+	local tabs = vim.fn.gettabinfo()
+	if tab_number <= #tabs then
+		vim.cmd(string.format("%dtabn", tab_number))
+	end
+end
+
+local function close_current_tab()
+	vim.cmd("tabclose")
+	reindex_tabs()
+end
+
+-- Create autocommand to reindex tabs when a tab is closed
+vim.api.nvim_create_autocmd("TabClosed", {
+	callback = function()
+		vim.schedule(reindex_tabs)
+	end,
+})
+
+-- Show custom tab name
+-- vim.o.showtabline = 2
+vim.o.tabline = "%!v:lua.CustomTabLine()"
+-- vim.opt.tabline = '%!t'
+
+function _G.CustomTabLine()
+	local tabline = ""
+	for i = 1, vim.fn.tabpagenr("$") do
+		-- Determine the active state
+		local hl = i == vim.fn.tabpagenr() and "%#TabLineSel#" or "%#TabLine#"
+
+		-- Get the tab name
+		local tab_name = "Tab"
+
+		-- Check if a custom name exists
+		if vim.g.tab_names and vim.g.tab_names[i] then
+			tab_name = vim.g.tab_names[i]
+		else
+			-- If no custom name, try to get buffer name
+			local winnr = vim.fn.tabpagewinnr(i)
+			local buflist = vim.fn.tabpagebuflist(i)
+			local bufnr = buflist[winnr]
+			local filename = vim.fn.bufname(bufnr)
+
+			-- Use filename or default
+			if filename ~= "" then
+				tab_name = vim.fn.fnamemodify(filename, ":t")
+			end
+		end
+
+		-- Create tab label
+		tabline = tabline .. hl .. "%" .. i .. "T " .. i .. ":" .. tab_name .. " %T"
+	end
+
+	-- Fill the rest of the tabline
+	tabline = tabline .. "%#TabLineFill#%T"
+	return tabline
+end
+
+local nvx = { "n", "v", "x" }
+U.keymaps({
+	-- Tabs
+	{ "<leader>tc", "<cmd>tabnew<cr>", desc = "Create new tab", mode = nvx },
+	{ "<leader>tx", close_current_tab, desc = "Close current tab", mode = nvx },
+
+	-- Switch to tabs 1-9
+	{
+		"<leader>t1",
+		function()
+			switch_to_tab(1)
+		end,
+		desc = "Switch to tab 1",
+		mode = nvx,
+	},
+	{
+		"<leader>t2",
+		function()
+			switch_to_tab(2)
+		end,
+		desc = "Switch to tab 2",
+		mode = nvx,
+	},
+	{
+		"<leader>t3",
+		function()
+			switch_to_tab(3)
+		end,
+		desc = "Switch to tab 3",
+		mode = nvx,
+	},
+	{
+		"<leader>t4",
+		function()
+			switch_to_tab(4)
+		end,
+		desc = "Switch to tab 4",
+		mode = nvx,
+	},
+	{
+		"<leader>t5",
+		function()
+			switch_to_tab(5)
+		end,
+		desc = "Switch to tab 5",
+		mode = nvx,
+	},
+	{
+		"<leader>t6",
+		function()
+			switch_to_tab(6)
+		end,
+		desc = "Switch to tab 6",
+		mode = nvx,
+	},
+	{
+		"<leader>t7",
+		function()
+			switch_to_tab(7)
+		end,
+		desc = "Switch to tab 7",
+		mode = nvx,
+	},
+	{
+		"<leader>t8",
+		function()
+			switch_to_tab(8)
+		end,
+		desc = "Switch to tab 8",
+		mode = nvx,
+	},
+	{
+		"<leader>t9",
+		function()
+			switch_to_tab(9)
+		end,
+		desc = "Switch to tab 9",
+		mode = nvx,
+	},
+})