" MIT License. Copyright (c) 2013-2020 Bailey Ling et al. " vim: et ts=2 sts=2 sw=2 scriptencoding utf-8 let s:spc = g:airline_symbols.space let s:current_bufnr = -1 let s:current_modified = 0 let s:current_tabline = '' let s:current_visible_buffers = [] let s:number_map = { \ '0': '⁰', \ '1': '¹', \ '2': '²', \ '3': '³', \ '4': '⁴', \ '5': '⁵', \ '6': '⁶', \ '7': '⁷', \ '8': '⁸', \ '9': '⁹' \ } let s:number_map = &encoding == 'utf-8' \ ? get(g:, 'airline#extensions#tabline#buffer_idx_format', s:number_map) \ : {} function! airline#extensions#tabline#buffers#off() augroup airline_tabline_buffers autocmd! augroup END endfunction function! airline#extensions#tabline#buffers#on() let terminal_event = has("nvim") ? 'TermOpen' : 'TerminalOpen' augroup airline_tabline_buffers autocmd! autocmd BufDelete * call airline#extensions#tabline#buflist#clean() if exists("##".terminal_event) exe 'autocmd '. terminal_event. ' * call airline#extensions#tabline#buflist#clean()' endif autocmd User BufMRUChange call airline#extensions#tabline#buflist#clean() augroup END endfunction function! airline#extensions#tabline#buffers#invalidate() let s:current_bufnr = -1 endfunction function! airline#extensions#tabline#buffers#get() try call map_keys() catch " no-op endtry let cur = bufnr('%') if cur == s:current_bufnr && &columns == s:column_width if !g:airline_detect_modified || getbufvar(cur, '&modified') == s:current_modified return s:current_tabline endif endif let b = airline#extensions#tabline#new_builder() let tab_bufs = tabpagebuflist(tabpagenr()) let show_buf_label_first = 0 if get(g:, 'airline#extensions#tabline#buf_label_first', 0) let show_buf_label_first = 1 endif if show_buf_label_first call airline#extensions#tabline#add_label(b, 'buffers', 0) endif let b.tab_bufs = tabpagebuflist(tabpagenr()) let b.overflow_group = 'airline_tabhid' let b.buffers = airline#extensions#tabline#buflist#list() if get(g:, 'airline#extensions#tabline#current_first', 0) if index(b.buffers, cur) > -1 call remove(b.buffers, index(b.buffers, cur)) endif let b.buffers = [cur] + b.buffers endif function! b.get_group(i) dict let bufnum = get(self.buffers, a:i, -1) if bufnum == -1 return '' endif let group = airline#extensions#tabline#group_of_bufnr(self.tab_bufs, bufnum) if bufnum == bufnr('%') let s:current_modified = (group == 'airline_tabmod') ? 1 : 0 endif return group endfunction if has("tablineat") function! b.get_pretitle(i) dict let bufnum = get(self.buffers, a:i, -1) return '%'.bufnum.'@airline#extensions#tabline#buffers#clickbuf@' endfunction function! b.get_posttitle(i) dict return '%X' endfunction endif function! b.get_title(i) dict let bufnum = get(self.buffers, a:i, -1) let group = self.get_group(a:i) let pgroup = self.get_group(a:i - 1) " always add a space when powerline_fonts are used " or for the very first item if get(g:, 'airline_powerline_fonts', 0) || a:i == 0 let space = s:spc else let space= (pgroup == group ? s:spc : '') endif if get(g:, 'airline#extensions#tabline#buffer_idx_mode', 0) if len(s:number_map) > 0 return space. s:get_number(a:i) . '%(%{airline#extensions#tabline#get_buffer_name('.bufnum.')}%)' . s:spc else return '['.(a:i+1).s:spc.'%(%{airline#extensions#tabline#get_buffer_name('.bufnum.')}%)'.']' endif else return space.'%(%{airline#extensions#tabline#get_buffer_name('.bufnum.')}%)'.s:spc endif endfunction let current_buffer = max([index(b.buffers, cur), 0]) let last_buffer = len(b.buffers) - 1 call b.insert_titles(current_buffer, 0, last_buffer) call b.add_section('airline_tabfill', '') call b.split() call b.add_section('airline_tabfill', '') if !show_buf_label_first call airline#extensions#tabline#add_label(b, 'buffers', 1) endif call airline#extensions#tabline#add_tab_label(b) let s:current_bufnr = cur let s:column_width = &columns let s:current_tabline = b.build() let s:current_visible_buffers = copy(b.buffers) " Do not remove from s:current_visible_buffers, this breaks s:select_tab() "if b._right_title <= last_buffer " call remove(s:current_visible_buffers, b._right_title, last_buffer) "endif "if b._left_title > 0 " call remove(s:current_visible_buffers, 0, b._left_title) "endif return s:current_tabline endfunction function! s:get_number(index) if len(s:number_map) == 0 return a:index endif let bidx_mode = get(g:, 'airline#extensions#tabline#buffer_idx_mode', 0) let number_format = bidx_mode > 1 ? '%02d' : '%d' let l:count = bidx_mode == 2 ? a:index+11 : a:index+1 return join(map(split(printf(number_format, l:count), '\zs'), \ 'get(s:number_map, v:val, "")'), '') endfunction function! s:select_tab(buf_index) " no-op when called in 'keymap_ignored_filetypes' if count(get(g:, 'airline#extensions#tabline#keymap_ignored_filetypes', \ ['vimfiler', 'nerdtree']), &ft) return endif let idx = a:buf_index if s:current_visible_buffers[0] == -1 let idx = idx + 1 endif let buf = get(s:current_visible_buffers, idx, 0) if buf != 0 exec 'b!' . buf endif endfunction function! s:jump_to_tab(offset) let l = airline#extensions#tabline#buflist#list() let i = index(l, bufnr('%')) if i > -1 exec 'b!' . l[(i + a:offset) % len(l)] endif endfunction function! s:map_keys() let bidx_mode = get(g:, 'airline#extensions#tabline#buffer_idx_mode', 1) if bidx_mode > 0 if bidx_mode == 1 for i in range(1, 10) exe printf('noremap AirlineSelectTab%d :call select_tab(%d)', i%10, i-1) endfor else let start_idx = bidx_mode == 2 ? 11 : 1 for i in range(start_idx, 99) exe printf('noremap AirlineSelectTab%02d :call select_tab(%d)', i, i-start_idx) endfor endif noremap AirlineSelectPrevTab :call jump_to_tab(-v:count1) noremap AirlineSelectNextTab :call jump_to_tab(v:count1) " Enable this for debugging " com! AirlineBufferList :echo map(copy(s:current_visible_buffers), {i,k -> k.": ".bufname(k)}) endif endfunction function! airline#extensions#tabline#buffers#clickbuf(minwid, clicks, button, modifiers) abort " Clickable buffers " works only in recent NeoVim with has('tablineat') " single mouse button click without modifiers pressed if a:clicks == 1 && a:modifiers !~# '[^ ]' if a:button is# 'l' " left button - switch to buffer silent execute 'buffer' a:minwid elseif a:button is# 'm' " middle button - delete buffer if get(g:, 'airline#extensions#tabline#middle_click_preserves_windows', 0) == 0 || winnr('$') == 1 " just simply delete the clicked buffer. This will cause windows " associated with the clicked buffer to be closed. silent execute 'bdelete' a:minwid else " find windows displaying the clicked buffer and open an new " buffer in them. let current_window = bufwinnr("%") let window_number = bufwinnr(a:minwid) let last_window_visited = -1 " Set to 1 if the clicked buffer was open in any windows. let buffer_in_window = 0 " Find the next window with the clicked buffer open. If bufwinnr() " returns the same window number, this is because we clicked a new " buffer, and then tried editing a new buffer. Vim won't create a " new empty buffer for the same window, so we get the same window " number from bufwinnr(). In this case we just give up and don't " delete the buffer. " This could be made cleaner if we could check if the clicked buffer " is a new buffer, but I don't know if there is a way to do that. while window_number != -1 && window_number != last_window_visited let buffer_in_window = 1 silent execute window_number . 'wincmd w' silent execute 'enew' let last_window_visited = window_number let window_number = bufwinnr(a:minwid) endwhile silent execute current_window . 'wincmd w' if window_number != last_window_visited || buffer_in_window == 0 silent execute 'bdelete' a:minwid endif endif endif endif endfunction