feat: tabline

init.lua

@@ -21,6 +21,7 @@ require('config.autocmds')
 require('config.clipboard')
 require('config.terminal')
 require('custom.navigation')
+require('custom.tabline').setup()
 require('lazy').setup({
   spec = { { import = 'plugins' } },
   install = { missing = false },

lua/custom/tabline.lua

@@ -0,0 +1,86 @@
+-- ~/.config/nvim/lua/custom/tabline.lua
+-- Custom Lua tabline with proper modified/unsaved and window count handling
+
+local M = {}
+
+-- Helper to get label for each tab page
+local function tab_label(n)
+  local buflist = vim.fn.tabpagebuflist(n)
+  local winnr = vim.fn.tabpagewinnr(n)
+  local bufname = vim.fn.bufname(buflist[winnr])
+
+  if bufname == '' then
+    bufname = '[No Name]'
+  else
+    bufname = vim.fn.fnamemodify(bufname, ':t') -- tail only
+  end
+
+  -- Determine window count reliably
+  local win_count = vim.fn.tabpagewinnr(n, '$')
+
+  -- Check if any buffer in the tab is modified
+  local modified = false
+  for _, buf in ipairs(buflist) do
+    if vim.fn.getbufvar(buf, '&modified') == 1 then
+      modified = true
+      break
+    end
+  end
+
+  -- Construct label according to rules:
+  --  single clean: File
+  --  single edited: +:File
+  --  multi clean: 2:File
+  --  multi edited: 2+:File
+  if win_count == 1 then
+    if modified then
+      bufname = '+:' .. bufname
+    end
+  else
+    local prefix = tostring(win_count)
+    if modified then
+      prefix = prefix .. '+'
+    end
+    bufname = prefix .. ':' .. bufname
+  end
+
+  -- Truncate overly long names
+  if #bufname > 20 then
+    bufname = bufname:sub(1, 17) .. '…'
+  end
+
+  return bufname
+end
+
+-- Main tabline builder
+function M.tabline()
+  local s = ''
+  local num_tabs = vim.fn.tabpagenr('$')
+
+  for i = 1, num_tabs do
+    -- Highlight current tab
+    if i == vim.fn.tabpagenr() then
+      s = s .. '%#TabLineSel#'
+    else
+      s = s .. '%#TabLine#'
+    end
+
+    -- Mouse click target
+    s = s .. '%' .. i .. 'T'
+
+    -- Label
+    s = s .. ' ' .. tab_label(i) .. ' '
+  end
+
+  -- Fill empty space
+  s = s .. '%#TabLineFill#%T'
+
+  return s
+end
+
+function M.setup()
+  vim.o.showtabline = 1
+  vim.o.tabline = "%!v:lua.require'custom.tabline'.tabline()"
+end
+
+return M

lua/plugins/colorscheme.lua

@@ -12,9 +12,13 @@ return {
       highlights = function(c, tool)
         c.bg_float = tool(152)
         return {
+          ModeMsg = { fg = c.yellow, bg = c.none, bold = true },
           WinSeparator = { fg = c.outline, bg = c.base },
           StatusLine = { fg = c.outline, bg = c.base },
           StatusLineNC = { fg = c.text, bg = c.base, bold = true },
+          TabLine = { fg = c.muted, bg = c.none },
+          TabLineSel = { fg = c.text, bg = c.none, bold = true },
+          TabLineFill = { fg = c.outline_light, bg = c.none },
         }
       end,
     })