neovim-config/lua/ui/tabline.lua

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require("base46").load_highlight "tbline"
local api = vim.api
-- btn click functions
vim.cmd "function! TbGoToBuf(bufnr,b,c,d) \n execute 'b'..a:bufnr \n endfunction"
vim.cmd [[
function! TbKillBuf(bufnr,b,c,d)
call luaeval('require("core.utils").close_buffer(_A)', a:bufnr)
endfunction]]
vim.cmd "function! TbNewTab(a,b,c,d) \n tabnew \n endfunction"
vim.cmd "function! TbGotoTab(tabnr,b,c,d) \n execute a:tabnr ..'tabnext' \n endfunction"
vim.cmd "function! TbTabClose(a,b,c,d) \n lua require('core.utils').closeAllBufs('closeTab') \n endfunction"
vim.cmd "function! TbCloseAllBufs(a,b,c,d) \n lua require('core.utils').closeAllBufs() \n endfunction"
vim.cmd "function! TbToggle_theme(a,b,c,d) \n lua require('base46').toggle_theme() \n endfunction"
vim.cmd "function! TbToggleTabs(a,b,c,d) \n let g:TbTabsToggled = !g:TbTabsToggled | redrawtabline \n endfunction"
local devicons_present, devicons = pcall(require, "nvim-web-devicons")
local fn = vim.fn
local new_cmd = api.nvim_create_user_command
new_cmd("Tbufnext", function()
require("core.utils").tabuflineNext()
end, {})
new_cmd("Tbufprev", function()
require("core.utils").tabuflinePrev()
end, {})
new_cmd("Tbufclose", function()
require("core.utils").close_buffer()
end, {})
local function new_hl(group1, group2)
local fg = fn.synIDattr(fn.synIDtrans(fn.hlID(group1)), "fg#")
local bg = fn.synIDattr(fn.synIDtrans(fn.hlID(group2)), "bg#")
api.nvim_set_hl(0, "Tbline" .. group1 .. group2, { fg = fg, bg = bg })
return "%#" .. "Tbline" .. group1 .. group2 .. "#"
end
local M = {}
-- covers area of nvimtree on tabufline
M.Offset = function()
for _, win in pairs(api.nvim_tabpage_list_wins(0)) do
if vim.bo[api.nvim_win_get_buf(win)].ft == "NvimTree" then
return "%#NvimTreeNormal#" .. string.rep(" ", api.nvim_win_get_width(win) + 1)
end
end
end
local function add_fileInfo(name, bufnr)
if devicons_present then
local icon, icon_hl = devicons.get_icon(name, string.match(name, "%a+$"))
if not icon then
icon, icon_hl = devicons.get_icon "default_icon"
end
local fileInfo = " " .. icon .. " " .. name .. " " -- initial value
local pad = (24 - #fileInfo) / 2
icon = (
api.nvim_get_current_buf() == bufnr and new_hl(icon_hl, "TbLineBufOn") .. " " .. icon
or new_hl(icon_hl, "TbLineBufOff") .. " " .. icon
)
name = (#name > 20 and string.sub(name, 1, 15) .. "...") or name
name = (api.nvim_get_current_buf() == bufnr and "%#TbLineBufOn# " .. name .. " ")
or ("%#TbLineBufOff# " .. name .. " ")
return string.rep(" ", pad) .. icon .. name .. string.rep(" ", pad - 1)
end
end
M.bufferlist = function()
local buffers = ""
for _, nr in ipairs(vim.t.bufs or {}) do -- buf = bufnr
if api.nvim_buf_is_loaded(nr) then
local name = (#api.nvim_buf_get_name(nr) ~= 0) and fn.fnamemodify(api.nvim_buf_get_name(nr), ":t")
or " No Name "
local close_btn = "%" .. nr .. "@TbKillBuf@ %X"
name = "%" .. nr .. "@TbGoToBuf@" .. add_fileInfo(name, nr) .. "%X"
-- color close btn for focused / hidden buffers
if nr == api.nvim_get_current_buf() then
close_btn = (vim.bo[0].modified and "%#TbLineBufOnModified# ") or ("%#TbLineBufOnClose#" .. close_btn)
name = "%#TbLineBufOn#" .. name .. close_btn
else
close_btn = (vim.bo[nr].modified and "%#TbBufLineBufOffModified# ")
or ("%#TbLineBufOffClose#" .. close_btn)
name = "%#TbLineBufOff#" .. name .. close_btn
end
buffers = buffers .. name
end
end
return buffers .. "%#TblineFill#" .. "%=" -- buffers + empty space
end
vim.g.TbTabsToggled = 0
M.tablist = function()
local result, number_of_tabs = "", fn.tabpagenr "$"
if number_of_tabs > 1 then
for i = 1, number_of_tabs, 1 do
local tab_hl = ((i == fn.tabpagenr()) and "%#TbLineTabOn# ") or "%#TbLineTabOff# "
result = result .. ("%" .. i .. "@TbGotoTab@" .. tab_hl .. i .. " ")
result = (i == fn.tabpagenr() and result .. "%#TbLineTabCloseBtn#" .. "%@TbTabClose@ %X") or result
end
local new_tabtn = "%#TblineTabNewBtn#" .. "%@TbNewTab@  %X"
local tabstoggleBtn = "%@TbToggleTabs@ %#TBTabTitle# TABS %X"
result = (vim.g.TbTabsToggled == 1 and tabstoggleBtn:gsub("()", { [36] = "" }))
or new_tabtn .. tabstoggleBtn .. result
return result
end
end
M.buttons = function()
local toggle_themeBtn = "%@TbToggle_theme@%#TbLineThemeToggleBtn#" .. vim.g.toggle_theme_icon .. "%X"
local CloseAllBufsBtn = "%@TbCloseAllBufs@%#TbLineCloseAllBufsBtn#" .. "" .. "%X"
return toggle_themeBtn .. CloseAllBufsBtn
end
M.run = function()
return (M.Offset() or "") .. M.bufferlist() .. (M.tablist() or "") .. M.buttons()
end
M = vim.tbl_deep_extend("force", M, require("core.utils").load_config().ui.tabufline.override)
return M