vim-airline/autoload/airline/extensions/tabline.vim
Emily St f196ea1f36 Customizes tabline appearance: type, close button
This commit adds a couple of new settings so that it's possible to hide
the tab type (all the way to the right) and the symbol which represents
the close button.

The settings and their defaults:

let g:airline#extensions#tabline#show_tab_type = 1
let g:airline#extensions#tabline#close_symbol = 'X'
2014-03-19 13:46:44 -07:00

279 lines
8.6 KiB
VimL

" MIT License. Copyright (c) 2013-2014 Bailey Ling.
" vim: et ts=2 sts=2 sw=2
let s:formatter = get(g:, 'airline#extensions#tabline#formatter', 'default')
let s:excludes = get(g:, 'airline#extensions#tabline#excludes', [])
let s:tab_nr_type = get(g:, 'airline#extensions#tabline#tab_nr_type', 0)
let s:show_buffers = get(g:, 'airline#extensions#tabline#show_buffers', 1)
let s:show_tab_nr = get(g:, 'airline#extensions#tabline#show_tab_nr', 1)
let s:show_tab_type = get(g:, 'airline#extensions#tabline#show_tab_type', 1)
let s:close_symbol = get(g:, 'airline#extensions#tabline#close_symbol', 'X')
let s:builder_context = {
\ 'active' : 1,
\ 'right_sep' : get(g:, 'airline#extensions#tabline#right_sep' , g:airline_right_sep),
\ 'right_alt_sep' : get(g:, 'airline#extensions#tabline#right_alt_sep', g:airline_right_alt_sep),
\ }
if get(g:, 'airline_powerline_fonts', 0)
let s:builder_context.left_sep = get(g:, 'airline#extensions#tabline#left_sep' , "\ue0b0")
let s:builder_context.left_alt_sep = get(g:, 'airline#extensions#tabline#left_alt_sep' , "\ue0b1")
else
let s:builder_context.left_sep = get(g:, 'airline#extensions#tabline#left_sep' , ' ')
let s:builder_context.left_alt_sep = get(g:, 'airline#extensions#tabline#left_alt_sep' , '|')
endif
let s:buf_min_count = get(g:, 'airline#extensions#tabline#buffer_min_count', 0)
let s:tab_min_count = get(g:, 'airline#extensions#tabline#tab_min_count', 0)
let s:spc = g:airline_symbols.space
function! airline#extensions#tabline#init(ext)
if has('gui_running')
set guioptions-=e
endif
autocmd User AirlineToggledOn call s:toggle_on()
autocmd User AirlineToggledOff call s:toggle_off()
autocmd BufDelete * let s:current_bufnr = -1
call s:toggle_on()
call a:ext.add_theme_func('airline#extensions#tabline#load_theme')
endfunction
function! s:toggle_off()
if exists('s:original_tabline')
let &tabline = s:original_tabline
let &showtabline = s:original_showtabline
endif
endfunction
function! s:toggle_on()
let [ s:original_tabline, s:original_showtabline ] = [ &tabline, &showtabline ]
set tabline=%!airline#extensions#tabline#get()
if s:buf_min_count <= 0 && s:tab_min_count <= 1
set showtabline=2
else
augroup airline_tabline
autocmd!
if s:show_buffers == 1
autocmd CursorMoved * call <sid>on_cursormove(s:buf_min_count, len(s:get_buffer_list()))
else
autocmd TabEnter * call <sid>on_cursormove(s:tab_min_count, tabpagenr('$'))
endif
augroup END
endif
endfunction
function! airline#extensions#tabline#load_theme(palette)
let colors = get(a:palette, 'tabline', {})
let l:tab = get(colors, 'airline_tab', a:palette.normal.airline_b)
let l:tabsel = get(colors, 'airline_tabsel', a:palette.normal.airline_a)
let l:tabtype = get(colors, 'airline_tabtype', a:palette.visual.airline_a)
let l:tabfill = get(colors, 'airline_tabfill', a:palette.normal.airline_c)
let l:tabmod = get(colors, 'airline_tabmod', a:palette.insert.airline_a)
let l:tabhid = get(colors, 'airline_tabhid', a:palette.normal.airline_c)
call airline#highlighter#exec('airline_tab', l:tab)
call airline#highlighter#exec('airline_tabsel', l:tabsel)
call airline#highlighter#exec('airline_tabtype', l:tabtype)
call airline#highlighter#exec('airline_tabfill', l:tabfill)
call airline#highlighter#exec('airline_tabmod', l:tabmod)
call airline#highlighter#exec('airline_tabhid', l:tabhid)
endfunction
function! s:on_cursormove(min_count, total_count)
if a:total_count >= a:min_count
if &showtabline != 2
set showtabline=2
endif
else
if &showtabline != 0
set showtabline=0
endif
endif
endfunction
function! airline#extensions#tabline#get()
if s:show_buffers && tabpagenr('$') == 1
return s:get_buffers()
else
return s:get_tabs()
endif
endfunction
function! airline#extensions#tabline#title(n)
let buflist = tabpagebuflist(a:n)
let winnr = tabpagewinnr(a:n)
return airline#extensions#tabline#get_buffer_name(buflist[winnr - 1])
endfunction
function! airline#extensions#tabline#get_buffer_name(nr)
return airline#extensions#tabline#{s:formatter}#format(a:nr, get(s:, 'current_buffer_list', s:get_buffer_list()))
endfunction
function! s:get_buffer_list()
let buffers = []
let cur = bufnr('%')
for nr in range(1, bufnr('$'))
if buflisted(nr) && bufexists(nr)
for ex in s:excludes
if match(bufname(nr), ex)
continue
endif
endfor
if getbufvar(nr, 'current_syntax') == 'qf'
continue
endif
call add(buffers, nr)
endif
endfor
let s:current_buffer_list = buffers
return buffers
endfunction
function! s:get_visible_buffers()
let buffers = s:get_buffer_list()
let cur = bufnr('%')
let total_width = 0
let max_width = 0
for nr in buffers
let width = len(airline#extensions#tabline#get_buffer_name(nr)) + 4
let total_width += width
let max_width = max([max_width, width])
endfor
" only show current and surrounding buffers if there are too many buffers
let position = index(buffers, cur)
let vimwidth = &columns
if total_width > vimwidth && position > -1
let buf_count = len(buffers)
" determine how many buffers to show based on the longest buffer width,
" use one on the right side and put the rest on the left
let buf_max = vimwidth / max_width
let buf_right = 1
let buf_left = max([0, buf_max - buf_right])
let start = max([0, position - buf_left])
let end = min([buf_count, position + buf_right])
" fill up available space on the right
if position < buf_left
let end += (buf_left - position)
endif
" fill up available space on the left
if end > buf_count - 1 - buf_right
let start -= max([0, buf_right - (buf_count - 1 - position)])
endif
let buffers = eval('buffers[' . start . ':' . end . ']')
if start > 0
call insert(buffers, -1, 0)
endif
if end < buf_count - 1
call add(buffers, -1)
endif
endif
return buffers
endfunction
let s:current_bufnr = -1
let s:current_tabnr = -1
let s:current_tabline = ''
let s:current_modified = 0
function! s:get_buffers()
let cur = bufnr('%')
if cur == s:current_bufnr
if !g:airline_detect_modified || getbufvar(cur, '&modified') == s:current_modified
return s:current_tabline
endif
endif
let b = airline#builder#new(s:builder_context)
let tab_bufs = tabpagebuflist(tabpagenr())
for nr in s:get_visible_buffers()
if nr < 0
call b.add_raw('%#airline_tabhid#...')
continue
endif
if cur == nr
if g:airline_detect_modified && getbufvar(nr, '&modified')
let group = 'airline_tabmod'
else
let group = 'airline_tabsel'
endif
let s:current_modified = (group == 'airline_tabmod') ? 1 : 0
else
if index(tab_bufs, nr) > -1
let group = 'airline_tab'
else
let group = 'airline_tabhid'
endif
endif
call b.add_section(group, s:spc.'%(%{airline#extensions#tabline#get_buffer_name('.nr.')}%)'.s:spc)
endfor
call b.add_section('airline_tabfill', '')
call b.split()
call b.add_section('airline_tabtype', ' buffers ')
let s:current_bufnr = cur
let s:current_tabline = b.build()
return s:current_tabline
endfunction
function! s:get_tabs()
let curbuf = bufnr('%')
let curtab = tabpagenr()
if curbuf == s:current_bufnr && curtab == s:current_tabnr
if !g:airline_detect_modified || getbufvar(curbuf, '&modified') == s:current_modified
return s:current_tabline
endif
endif
let b = airline#builder#new(s:builder_context)
for i in range(1, tabpagenr('$'))
if i == curtab
let group = 'airline_tabsel'
if g:airline_detect_modified
for bi in tabpagebuflist(i)
if getbufvar(bi, '&modified')
let group = 'airline_tabmod'
endif
endfor
endif
let s:current_modified = (group == 'airline_tabmod') ? 1 : 0
else
let group = 'airline_tab'
endif
let val = '%('
if s:show_tab_nr
if s:tab_nr_type == 0
let val .= ' %{len(tabpagebuflist('.i.'))}'
else
let val .= (g:airline_symbols.space).i
endif
endif
call b.add_section(group, val.'%'.i.'T %{airline#extensions#tabline#title('.i.')} %)')
endfor
call b.add_raw('%T')
call b.add_section('airline_tabfill', '')
call b.split()
call b.add_section('airline_tab', ' %999X'.s:close_symbol.' ')
if s:show_tab_type
call b.add_section('airline_tabtype', ' tabs ')
endif
let s:current_bufnr = curbuf
let s:current_tabnr = curtab
let s:current_tabline = b.build()
return s:current_tabline
endfunction