131 lines
3.4 KiB
VimL
131 lines
3.4 KiB
VimL
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" keep track of vimrc setting
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let s:updatetime = &updatetime
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" keep track of scrollinf window start
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let s:window_start = 0
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function! s:generate_names()
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let names = []
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let i = 1
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let last_buffer = bufnr('$')
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let current_buffer = bufnr('%')
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while i <= last_buffer
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if bufexists(i) && buflisted(i)
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let modified = ' '
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if getbufvar(i, '&mod')
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let modified = g:bufferline_modified
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endif
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let fname = fnamemodify(bufname(i), g:bufferline_fname_mod)
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if g:bufferline_pathshorten != 0
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let fname = pathshorten(fname)
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endif
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let fname = substitute(fname, "%", "%%", "g")
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let skip = 0
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for ex in g:bufferline_excludes
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if match(fname, ex) > -1
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let skip = 1
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break
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endif
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endfor
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if !skip
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let name = ''
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if g:bufferline_show_bufnr != 0 && g:bufferline_status_info.count >= g:bufferline_show_bufnr
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let name = i . ':'
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endif
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let name .= fname . modified
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if current_buffer == i
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let name = g:bufferline_active_buffer_left . name . g:bufferline_active_buffer_right
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let g:bufferline_status_info.current = name
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else
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let name = g:bufferline_separator . name . g:bufferline_separator
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endif
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call add(names, [i, name])
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endif
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endif
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let i += 1
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endwhile
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if len(names) > 1
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if g:bufferline_rotate == 1
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call bufferline#algos#fixed_position#modify(names)
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endif
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endif
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return names
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endfunction
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function! bufferline#get_echo_string()
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" check for special cases like help files
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let current = bufnr('%')
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if !bufexists(current) || !buflisted(current)
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return bufname('%')
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endif
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let names = s:generate_names()
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let line = ''
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for val in names
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let line .= val[1]
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endfor
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let index = match(line, '\V'.g:bufferline_status_info.current)
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let g:bufferline_status_info.count = len(names)
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let g:bufferline_status_info.before = strpart(line, 0, index)
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let g:bufferline_status_info.after = strpart(line, index + len(g:bufferline_status_info.current))
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return line
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endfunction
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function! s:echo()
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if &filetype ==# 'unite'
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return
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endif
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let line = bufferline#get_echo_string()
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" 12 is magical and is the threshold for when it doesn't wrap text anymore
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let width = &columns - 12
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if g:bufferline_rotate == 2
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let current_buffer_start = stridx(line, g:bufferline_active_buffer_left)
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let current_buffer_end = stridx(line, g:bufferline_active_buffer_right)
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if current_buffer_start < s:window_start
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let s:window_start = current_buffer_start
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endif
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if current_buffer_end > (s:window_start + width)
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let s:window_start = current_buffer_end - width + 1
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endif
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let line = strpart(line, s:window_start, width)
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else
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let line = strpart(line, 0, width)
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endif
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echo line
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if &updatetime != s:updatetime
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let &updatetime = s:updatetime
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endif
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endfunction
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function! s:cursorhold_callback()
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call s:echo()
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autocmd! bufferline CursorHold
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endfunction
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function! s:refresh(updatetime)
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let &updatetime = a:updatetime
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autocmd bufferline CursorHold * call s:cursorhold_callback()
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endfunction
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function! bufferline#init_echo()
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augroup bufferline
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au!
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" events which output a message which should be immediately overwritten
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autocmd BufWinEnter,WinEnter,InsertLeave,VimResized * call s:refresh(1)
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augroup END
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autocmd CursorHold * call s:echo()
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endfunction
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