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scriptencoding utf-8
augroup MAX_FANCY_LINE
set noshowmode | " mode would otherwise be shown twice- in lightline and below. We want to deactivate one.
set laststatus=2 | " required by AirLine and Lightline, without status line does not appear until a window split
if (&term ==? 'linux')
let g:group_active = 'StatusLineTerm'
let g:group_inactive = 'StatusLineTermNC'
let g:group_tabline = 'TabLine'
let g:status_sym_start = ''
let g:status_sym_end = '▶'
let g:status_sym_sep_start = '│'
let g:status_sym_sep_end = '│'
let g:symbol_branch = ''
let g:symbol_screen_edge = '░'
else
let g:group_active = 'StatusLine'
let g:group_inactive = 'StatusLineNC'
let g:group_tabline = 'TabLine'
let g:status_sym_start = ''
let g:status_sym_end = ''
let g:status_sym_sep_start = '│'
let g:status_sym_sep_end = '│'
let g:symbol_branch = ''
let g:symbol_screen_edge = '░'
endif
" this function reverts foreground color and background color of a given
" highlight group and returns the name of a newly created _invert group
function! CreateInvertGroup(highlight_group)
let w:gui_bg=synIDattr(synIDtrans(hlID(a:highlight_group)), 'bg', 'gui')
let w:gui_fg=synIDattr(synIDtrans(hlID(a:highlight_group)), 'fg', 'gui')
let w:cterm_bg=synIDattr(synIDtrans(hlID(a:highlight_group)), 'bg', 'cterm')
let w:cterm_fg=synIDattr(synIDtrans(hlID(a:highlight_group)), 'fg', 'cterm')
if(w:gui_bg ==# '') | let w:gui_bg = 'NONE' | endif
if(w:gui_fg ==# '') | let w:gui_fg = 'NONE' | endif
if(w:cterm_bg ==# '') | let w:cterm_bg = 'NONE' | endif
if(w:cterm_fg ==# '') | let w:cterm_fg = 'NONE' | endif
let l:retval=a:highlight_group.'_invert'
if(0 == synIDattr(synIDtrans(hlID(a:highlight_group)), 'reverse', 'cterm'))
exec 'highlight! '.l:retval.' ctermfg='.w:cterm_bg.' ctermbg=0 guifg='.w:gui_bg.' guibg=NONE'
else
exec 'highlight! '.l:retval.' ctermfg='.w:cterm_fg.' ctermbg=0 guifg='.w:gui_fg.' guibg=NONE'
endif
return l:retval
endfunction
function! UpdateStatus(highlight_group)
let l:invert_group = CreateInvertGroup(a:highlight_group)
let l:mode = get({
\ 'n' : 'normal',
\ 'i' : 'insert',
\ 'R' : 'replace',
\ 'v' : 'visual',
\ 'V' : 'visual line',
\ "\<C-V>" : 'visual block',
\ 'c' : 'command',
\ 's' : 'select',
\ 'S' : 'select line',
\ "\<C-s>" : 'select block',
\ 't' : 'terminal'
\ }, mode(), mode())
return ''
\ .'%#StatusLineHighlight#'
\ .'%#'.a:highlight_group.'#'
\ .g:symbol_screen_edge
\ .'%{&buftype != "" ? " ".&buftype : ""}'
\ .' '.l:mode.g:status_sym_sep_start
\ .'%{argc() > 1 ? " ".(argidx() + 1).":".argc()." ".g:status_sym_sep_start : ""}'
\ .'%{haslocaldir() ? fnamemodify(getcwd(), ":.:~")." " :""}'
\ .'%{&readonly ? " 🔒" : ""}'
\ .'%{&modified ? " 💾 " : ""}'
\ .'%{" [".winbufnr(0)."] "}'
\ .'%{bufname("%") == "" ? "" : fnamemodify(expand("%"), ":~:.")}'
\ .'%{&titlestring ? has("nvim") ? b:term_title:expand(&titlestring) : "" }'
\ .'%{exists("w:quickfix_title") ? w:quickfix_title : ""}'
\ .' '
\ .'%#'.l:invert_group.'#'
\ .g:status_sym_end
\ .'%#Ignore#'
\ .'%<'
\ .''
\ .'%='
\ .''
\ .'%#'.l:invert_group.'#'
\ .g:status_sym_start
\ .'%#'.a:highlight_group.'#'.' '
\ .'%{&buftype == "" ? "" : &buftype." ".g:status_sym_sep_end." "}'
\ .'%{&filetype == "" ? "" :&filetype." ".g:status_sym_sep_end." "}'
\ .'%{&spell ? &spelllang." ".g:status_sym_sep_end : ""}'
\ .'%{&fileencoding =~ "^$\\|^utf\-8$" ? "" : &fileencoding." ".g:status_sym_sep_end." "}'
\ .'%{&fileformat =~ "^$\\|^unix$" ? "" : &fileformat." ".g:status_sym_sep_end}'
\ .' '
\ .'%cx%-l: '
\ .g:status_sym_sep_end
\ .' '
\ .'%p%% '
\ .g:symbol_screen_edge
\ .'%#NonText#'
endfunction
function! UpdateTabline(highlight_group)
let l:invert_group = CreateInvertGroup(a:highlight_group)
let l:git_branch = systemlist('git branch --show-current')[0]
let l:git_branch = v:shell_error ? "" : g:status_sym_sep_start . ' ' . g:symbol_branch . ' ' . l:git_branch
return ''
\ .'%#'.a:highlight_group.'#'
\ .g:symbol_screen_edge
\ .' '
\ .'%#'.a:highlight_group.'#'
\ .'%-2( %)'
\ .'%{fnamemodify(getcwd(-1), ":~")}'
\ .' '
\ .l:git_branch
\ .' '
\ .'%#'.l:invert_group.'#'
\ .g:status_sym_end
\ .'%<'
\ .'%='
\ .'%#'.l:invert_group.'#'
\ .g:status_sym_start
\ .'%(%#'.a:highlight_group.'#%)'
\ .' '
\ .'%-2(%)'
\ .'%(%#'.a:highlight_group.'#%)'
\ .'%(%{v:servername} %{v:this_session}%)'
\ .g:status_sym_sep_end.' '
\ .'%-3(%)'
\ .'%#'.a:highlight_group.'#'
\ .'%{tabpagenr()}/%{tabpagenr()}'
\ .' '
\ .g:symbol_screen_edge
\ .'%##'
endfunction
if $USER ==? 'root'
let highlight_group_root = "ErrorMsg"
let invert_group = CreateInvertGroup(highlight_group_root)
let g:group_tabline = highlight_group_root
endif
function! ApplyColorScheme()
" set termguicolors | " When on, uses highlight-guifg and highlight-guibg attributes in the terminal (=24bit color) incompatible with nvim
" set t_ut=
" set up statusline, global and current window individually
set statusline=%!UpdateStatus(g:group_inactive)
setlocal statusline=%!UpdateStatus(g:group_active)
" set up the tabline (match colors)
set tabline=%!UpdateTabline(g:group_tabline)
" otherwise 'bold' can mess up icon sizes and I do not know why
" highlight! StatusLine cterm=reverse
" exec 'highlight! User3 guifg=#D2A032 guibg='.l:fgcolor
" workaround for VertSplit looking as a repeated slash, because its an
" italic bar...
" highlight! VertSplit gui=NONE cterm=NONE term=NONE
endfunction
call ApplyColorScheme()
" apply colors from the loaded colorscheme...
" when changing the colorscheme also apply new colors to the statusbar...
autocmd ColorScheme * call ApplyColorScheme()
autocmd WinEnter * setlocal statusline=%!UpdateStatus(g:group_active)
autocmd WinLeave * setlocal statusline<
augroup END " MAX_FANCYLINE
" vim: shiftwidth=4 tabstop=4 expandtab softtabstop=4
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