Vim Powerline

powerline.vim

function! GetModeName(mode)
  if a:mode ==# "n"
    return "NORMAL"
  elseif a:mode ==# "i"
    return "INSERT"
  elseif a:mode ==# "V"
    return "VISUAL LINE"
  elseif a:mode ==# "v"
    return "VISUAL"
  elseif a:mode ==# ""
    return "VISUAL BLOCK"
  elseif a:mode ==# "R"
    return "REPLACE"
  endif
  return a:mode
endfunction

function! GetStatusColor(mode)
  if a:mode ==# "INSERT"
    return [118, 232]
  elseif a:mode ==# "VISUAL BLOCK"
    return [161, 253]
  elseif a:mode ==# "NORMAL"
    return [81, 232]
  elseif a:mode ==# "REPLACE"
    return [118, 232]
  else
    return [161, 253]
  endif
endfunction

function! SetStatus(mode)
  if a:mode == ""
    let l:modecolor = GetStatusColor(GetModeName(mode()))
  else
    let l:modecolor = GetStatusColor(a:mode)
  endif
  execute 'hi User1 ctermfg=' . l:modecolor[1] . ' ctermbg=' . l:modecolor[0]
  setlocal statusline=%1*
  setlocal statusline+=\ 
  setlocal statusline+=%{GetModeName(mode())}
  execute 'hi User2 ctermbg=238 ctermfg=' . l:modecolor[0]
  setlocal statusline+=\ %2*
  hi User3 ctermbg=235 ctermfg=238
  hi User4 ctermbg=235 ctermfg=246
  setlocal statusline+=%3*\ %4*%f%m%=
  setlocal statusline+=%3*%2*%1*\ %p%%\ 
endfunction

nnoremap <silent> v :call SetStatus("VISUAL")<CR>v
nnoremap <silent> V :call SetStatus("VISUAL LINE")<CR>V
nnoremap <silent> <C-v> :call SetStatus("VISUAL BLOCK")<CR><C-v>
vnoremap <silent> <Esc> <Esc>:call SetStatus("NORMAL")<CR>
vnoremap <silent> <C-[> <C-[>:call SetStatus("NORMAL")<CR>
nnoremap <silent> R :call SetStatus("REPLACE")<CR>R
au VimEnter,InsertLeave * call SetStatus("NORMAL")
au InsertEnter * call SetStatus("INSERT")