84 lines
1.7 KiB
Lua
84 lines
1.7 KiB
Lua
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.opt.showtabline = 1
|
|
vim.opt.tabline = "%!v:lua.require'plugins.tabline'.tabline()"
|
|
end
|
|
|
|
return M
|