" Plugin:      https://github.com/mhinz/vim-startify
" Description: Start screen displaying recently used stuff.
" Maintainer:  Marco Hinz <http://github.com/mhinz>
" Version:     1.4

if exists('g:loaded_startify') || &cp
  finish
endif
let g:loaded_startify = 1

" Init {{{1
let g:startify_session_dir = resolve(expand(get(g:, 'startify_session_dir',
      \ has('win32') ? '$HOME\vimfiles\session' : '~/.vim/session')))

augroup startify
  autocmd!
  autocmd VimEnter *
        \ if !argc() && (line2byte('$') == -1) && (v:progname =~? '^[gm]\=vim\%[\.exe]$') |
        \   call s:insane_in_the_membrane() |
        \ endif
augroup END

command! -nargs=? -bar -complete=customlist,startify#get_session_names SSave call startify#save_session(<f-args>)
command! -nargs=? -bar -complete=customlist,startify#get_session_names SLoad call startify#load_session(<f-args>)
command! -nargs=0 -bar Startify enew | call s:insane_in_the_membrane()

" Function: s:insane_in_the_membrane {{{1
function! s:insane_in_the_membrane() abort
  if !empty(v:servername) && exists('g:startify_skiplist_server')
    for servname in g:startify_skiplist_server
      if (servname == v:servername)
        return
      endif
    endfor
  endif
  setlocal nonumber noswapfile bufhidden=wipe
  if (v:version >= 703)
    setlocal norelativenumber
  endif
  if get(g:, 'startify_unlisted_buffer', 1)
    setlocal nobuflisted
  endif
  setfiletype startify

  let special = get(g:, 'startify_enable_special', 1)
  let sep = startify#get_sep()
  let cnt = 0

  if special
    call append('$', '   [e]  <empty buffer>')
  endif

  if get(g:, 'startify_show_files', 1) && !empty(v:oldfiles)
    let numfiles = get(g:, 'startify_show_files_number', 10)
    if special
      call append('$', '')
    endif
    for fname in v:oldfiles
      let expfname = expand(fname)
      if !filereadable(expfname) || (exists('g:startify_skiplist') && startify#is_in_skiplist(expfname))
        continue
      endif
      call append('$', '   ['. cnt .']'. repeat(' ', 3 - strlen(string(cnt))) . fname)
      execute 'nnoremap <buffer> '. cnt .' :edit '. startify#escape(fname) .' <bar> lcd %:h<cr>'
      let cnt += 1
      if (cnt == numfiles)
        break
      endif
    endfor
  endif

  let sfiles = split(globpath(g:startify_session_dir, '*'), '\n')

  if get(g:, 'startify_show_sessions', 1) && !empty(sfiles)
    call append('$', '')
    for i in range(len(sfiles))
      let idx = i + cnt
      call append('$', '   ['. idx .']'. repeat(' ', 3 - strlen(string(idx))) . fnamemodify(sfiles[i], ':t:r'))
      execute 'nnoremap <buffer> '. idx .' :source '. startify#escape(sfiles[i]) .'<cr>'
    endfor
    let cnt = idx
  endif

  if exists('g:startify_bookmarks')
    call append('$', '')
    for fname in g:startify_bookmarks
      if !filereadable(expand(fname))
        continue
      endif
      let cnt += 1
      call append('$', '   ['. cnt .']'. repeat(' ', 3 - strlen(string(cnt))) . fname)
      execute 'nnoremap <buffer> '. cnt .' :edit '. startify#escape(fname) .' <bar> lcd %:h<cr>'
    endfor
  endif

  if special
    call append('$', ['', '   [q]  <quit>'])
  endif

  setlocal nomodifiable nomodified

  nnoremap <buffer><silent> e :enew<cr>
  nnoremap <buffer><silent> i :enew<cr>
  nnoremap <buffer> <cr> :normal <c-r><c-w><cr>
  nnoremap <buffer> <2-LeftMouse> :execute 'normal '. matchstr(getline('.'), '\w\+')<cr>
  nnoremap <buffer> q
        \ :if (len(filter(range(0, bufnr('$')), 'buflisted(v:val)')) > 1) <bar>
        \   bd <bar>
        \ else <bar>
        \   quit <bar>
        \ endif<cr>

  if exists('g:startify_empty_buffer_key')
    execute 'nnoremap <buffer><silent> '. g:startify_empty_buffer_key .' :enew<cr>'
  endif

  autocmd! startify *
  autocmd startify CursorMoved <buffer> call s:set_cursor()
  autocmd startify BufWipeout <buffer> autocmd! startify *

  call cursor(special ? 4 : 2, 5)
endfunction

" Function: s:set_cursor {{{1
function! s:set_cursor() abort
  let s:line_old = exists('s:line_new') ? s:line_new : 5
  let s:line_new = line('.')
  if empty(getline(s:line_new))
    if (s:line_new > s:line_old)
      let s:line_new += 1
      call cursor(s:line_new, 5) " going down
    else
      let s:line_new -= 1
      call cursor((s:line_new < 2 ? 2 : s:line_new), 5) " going up
    endif
  else
    call cursor((s:line_new < 2 ? 2 : 0), 5) " hold cursor in column
  endif
endfunction

" vim: et sw=2 sts=2