vim-airline/autoload/airline/extensions/tabline/xtabline.vim
Christian Brabandt 2e9df43962
autocommands: check for existence of airline highlight group
Several extensions trigger custom actions. Make sure, those actions are
only performed, if airline is actually active and not temporarily
disabled using e.g. :AirlineToggle
2021-04-30 13:26:33 +02:00

405 lines
14 KiB
VimL

""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" xTabline - Reduced version for vim-airline
" Plugin: https://github.com/mg979/vim-xtabline
" MIT License Copyright (C) 2018-2021 Gianmaria Bajo <mg1979.git@gmail.com>
" tabpagecd:
" expanded version by mg979
" MIT License Copyright (C) 2012-2013 Kana Natsuno <http://whileimautomaton.net/>
" MIT License Copyright (C) 2018-2021 Gianmaria Bajo <mg1979.git@gmail.com>
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! airline#extensions#tabline#xtabline#init()
let s:state = 0
" initialize mappings
call airline#extensions#tabline#xtabline#maps()
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Variables
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
let g:loaded_xtabline = 1
let s:most_recent = -1
let s:xtabline_filtering = 1
let t:xtl_excluded = get(g:, 'airline#extensions#tabline#exclude_buffers', [])
let t:xtl_accepted = []
let g:xtabline_include_previews = get(g:, 'xtabline_include_previews', 1)
let g:xtabline_alt_action = get(g:, 'xtabline_alt_action', "buffer #")
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Autocommands
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
augroup plugin-xtabline
autocmd!
autocmd TabNew * call s:Do('new')
autocmd TabEnter * call s:Do('enter')
autocmd TabLeave * call s:Do('leave')
autocmd TabClosed * call s:Do('close')
autocmd BufEnter * if exists('#airline') | let g:xtabline_changing_buffer = 0 | endif
autocmd BufAdd,BufDelete,BufWrite * call airline#extensions#tabline#xtabline#filter_buffers()
augroup END
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Commands
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
com! XTabReopen call airline#extensions#tabline#xtabline#reopen_last_tab()
endfunction
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Mappings
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! airline#extensions#tabline#xtabline#maps()
if !exists('g:xtabline_disable_keybindings')
fun! s:mapkeys(keys, plug)
if empty(mapcheck(a:keys)) && !hasmapto(a:plug)
silent! execute 'nmap <unique> '.a:keys.' '.a:plug
endif
endfun
call s:mapkeys('<F5>','<Plug>XTablineToggleTabs')
call s:mapkeys('<leader><F5>','<Plug>XTablineToggleFiltering')
call s:mapkeys('<BS>','<Plug>XTablineSelectBuffer')
call s:mapkeys(']l','<Plug>XTablineNextBuffer')
call s:mapkeys('[l','<Plug>XTablinePrevBuffer')
call s:mapkeys('<leader>tr','<Plug>XTablineReopen')
endif
nnoremap <unique> <script> <Plug>XTablineToggleTabs <SID>ToggleTabs
nnoremap <silent> <SID>ToggleTabs :call airline#extensions#tabline#xtabline#toggle_tabs()<cr>
nnoremap <unique> <script> <Plug>XTablineToggleFiltering <SID>ToggleFiltering
nnoremap <silent> <SID>ToggleFiltering :call airline#extensions#tabline#xtabline#toggle_buffers()<cr>
nnoremap <unique> <script> <Plug>XTablineSelectBuffer <SID>SelectBuffer
nnoremap <silent> <expr> <SID>SelectBuffer g:xtabline_changing_buffer ? "\<C-c>" : ":<C-u>call airline#extensions#tabline#xtabline#select_buffer(v:count)\<cr>"
nnoremap <unique> <script> <Plug>XTablineNextBuffer <SID>NextBuffer
nnoremap <silent> <expr> <SID>NextBuffer airline#extensions#tabline#xtabline#next_buffer(v:count1)
nnoremap <unique> <script> <Plug>XTablinePrevBuffer <SID>PrevBuffer
nnoremap <silent> <expr> <SID>PrevBuffer airline#extensions#tabline#xtabline#prev_buffer(v:count1)
nnoremap <unique> <script> <Plug>XTablineReopen <SID>ReopenLastTab
nnoremap <silent> <SID>ReopenLastTab :XTabReopen<cr>
if get(g:, 'xtabline_cd_commands', 0)
map <unique> <leader>cdc <Plug>XTablineCdCurrent
map <unique> <leader>cdd <Plug>XTablineCdDown1
map <unique> <leader>cd2 <Plug>XTablineCdDown2
map <unique> <leader>cd3 <Plug>XTablineCdDown3
map <unique> <leader>cdh <Plug>XTablineCdHome
nnoremap <unique> <script> <Plug>XTablineCdCurrent :cd %:p:h<cr>:call airline#util#doautocmd('BufAdd')<cr>:pwd<cr>
nnoremap <unique> <script> <Plug>XTablineCdDown1 :cd %:p:h:h<cr>:call airline#util#doautocmd('BufAdd')<cr>:pwd<cr>
nnoremap <unique> <script> <Plug>XTablineCdDown2 :cd %:p:h:h:h<cr>:call airline#util#doautocmd('BufAdd')<cr>:pwd<cr>
nnoremap <unique> <script> <Plug>XTablineCdDown3 :cd %:p:h:h:h:h<cr>:call airline#util#doautocmd('BufAdd')<cr>:pwd<cr>
nnoremap <unique> <script> <Plug>XTablineCdHome :cd ~<cr>:call airline#util#doautocmd('BufAdd')<cr>:pwd<cr>
endif
endfunction
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Commands functions
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! airline#extensions#tabline#xtabline#toggle_tabs()
"""Toggle between tabs/buffers tabline."""
if tabpagenr("$") == 1 | call airline#util#warning("There is only one tab.") | return | endif
if g:airline#extensions#tabline#show_tabs
let g:airline#extensions#tabline#show_tabs = 0
call airline#util#warning("Showing buffers")
else
let g:airline#extensions#tabline#show_tabs = 1
call airline#util#warning("Showing tabs")
endif
doautocmd BufAdd
endfunction
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! airline#extensions#tabline#xtabline#toggle_buffers()
"""Toggle buffer filtering in the tabline."""
if s:xtabline_filtering
let s:xtabline_filtering = 0
let g:airline#extensions#tabline#exclude_buffers = []
call airline#util#warning("Buffer filtering turned off")
doautocmd BufAdd
else
let s:xtabline_filtering = 1
call airline#extensions#tabline#xtabline#filter_buffers()
call airline#util#warning("Buffer filtering turned on")
doautocmd BufAdd
endif
endfunction
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! airline#extensions#tabline#xtabline#reopen_last_tab()
"""Reopen the last closed tab."""
if !exists('s:most_recently_closed_tab')
call airline#util#warning("No recent tabs.")
return
endif
let tab = s:most_recently_closed_tab
tabnew
let empty = bufnr("%")
let t:cwd = tab['cwd']
cd `=t:cwd`
let t:name = tab['name']
for buf in tab['buffers'] | execute "badd ".buf | endfor
execute "edit ".tab['buffers'][0]
execute "bdelete ".empty
endfunction
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! airline#extensions#tabline#xtabline#filter_buffers()
"""Filter buffers so that only the ones within the tab's cwd will show up.
" 'accepted' is a list of buffer numbers, for quick access.
" 'excluded' is a list of buffer numbers, it will be used by Airline to hide buffers.
if !exists('#airline')
" airline disabled
return
endif
if !s:xtabline_filtering | return | endif
let g:airline#extensions#tabline#exclude_buffers = []
let t:xtl_excluded = g:airline#extensions#tabline#exclude_buffers
let t:xtl_accepted = [] | let accepted = t:xtl_accepted
let previews = g:xtabline_include_previews
" bufnr(0) is the alternate buffer
for buf in range(1, bufnr("$"))
if !buflisted(buf) | continue | endif
" get the path
let path = expand("#".buf.":p")
" confront with the cwd
if !previews && path =~ "^".getcwd()
call add(accepted, buf)
elseif previews && path =~ getcwd()
call add(accepted, buf)
else
call add(t:xtl_excluded, buf)
endif
endfor
call s:RefreshTabline()
endfunction
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! airline#extensions#tabline#xtabline#next_buffer(nr)
"""Switch to next visible buffer."""
if ( s:NotEnoughBuffers() || !s:xtabline_filtering ) | return | endif
let accepted = t:xtl_accepted
let ix = index(accepted, bufnr("%"))
let target = ix + a:nr
let total = len(accepted)
if ix == -1
" not in index, go back to most recent or back to first
if s:most_recent == -1 || s:most_recent >= total
let s:most_recent = 0
endif
elseif target >= total
" over last buffer
while target >= total | let target -= total | endwhile
let s:most_recent = target
else
let s:most_recent = target
endif
return ":buffer " . accepted[s:most_recent] . "\<cr>"
endfunction
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! airline#extensions#tabline#xtabline#prev_buffer(nr)
"""Switch to previous visible buffer."""
if ( s:NotEnoughBuffers() || !s:xtabline_filtering ) | return | endif
let accepted = t:xtl_accepted
let ix = index(accepted, bufnr("%"))
let target = ix - a:nr
let total = len(accepted)
if ix == -1
" not in index, go back to most recent or back to first
if s:most_recent == -1 || s:most_recent >= total
let s:most_recent = 0
endif
elseif target < 0
" before first buffer
while target < 0 | let target += total | endwhile
let s:most_recent = target
else
let s:most_recent = target
endif
return ":buffer " . accepted[s:most_recent] . "\<cr>"
endfunction
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! airline#extensions#tabline#xtabline#select_buffer(nr)
"""Switch to visible buffer in the tabline with [count]."""
if ( a:nr == 0 || !s:xtabline_filtering ) | execute g:xtabline_alt_action | return | endif
let accepted = t:xtl_accepted
if (a:nr > len(accepted)) || s:NotEnoughBuffers() || accepted[a:nr - 1] == bufnr("%")
return
else
let g:xtabline_changing_buffer = 1
execute "buffer ".accepted[a:nr - 1]
endif
endfunction
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! s:TabBuffers()
"""Return a list of buffers names for this tab."""
return map(copy(t:xtl_accepted), 'bufname(v:val)')
endfunction
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" Helper functions
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! s:NotEnoughBuffers()
"""Just return if there aren't enough buffers."""
if len(t:xtl_accepted) < 2
if index(t:xtl_accepted, bufnr("%")) == -1
return
elseif !len(t:xtl_accepted)
call airline#util#warning("No available buffers for this tab.")
else
call airline#util#warning("No other available buffers for this tab.")
endif
return 1
endif
endfunction
function! s:RefreshTabline()
call airline#extensions#tabline#buflist#invalidate()
endfunction
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" TabPageCd
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" tabpagecd - Turn :cd into :tabpagecd, to use one tab page per project
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! s:InitCwds()
if !exists('g:xtab_cwds') | let g:xtab_cwds = [] | endif
while len(g:xtab_cwds) < tabpagenr("$")
call add(g:xtab_cwds, getcwd())
endwhile
let s:state = 1
let t:cwd = getcwd()
let s:last_tab = 0
call airline#extensions#tabline#xtabline#filter_buffers()
endfunction
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! airline#extensions#tabline#xtabline#update_obsession()
let string = 'let g:xtab_cwds = '.string(g:xtab_cwds).' | call airline#extensions#tabline#xtabline#update_obsession()'
if !exists('g:obsession_append')
let g:obsession_append = [string]
else
call filter(g:obsession_append, 'v:val !~# "^let g:xtab_cwds"')
call add(g:obsession_append, string)
endif
endfunction
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
function! s:Do(action)
if !exists('#airline')
" airline disabled
return
endif
let arg = a:action
if !s:state | call s:InitCwds() | return | endif
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
if arg == 'new'
call insert(g:xtab_cwds, getcwd(), tabpagenr()-1)
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
elseif arg == 'enter'
let t:cwd =g:xtab_cwds[tabpagenr()-1]
cd `=t:cwd`
call airline#extensions#tabline#xtabline#filter_buffers()
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
elseif arg == 'leave'
let t:cwd = getcwd()
let g:xtab_cwds[tabpagenr()-1] = t:cwd
let s:last_tab = tabpagenr() - 1
if !exists('t:name') | let t:name = t:cwd | endif
let s:most_recent_tab = {'cwd': t:cwd, 'name': t:name, 'buffers': s:TabBuffers()}
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
elseif arg == 'close'
let s:most_recently_closed_tab = copy(s:most_recent_tab)
call remove(g:xtab_cwds, s:last_tab)
endif
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
call airline#extensions#tabline#xtabline#update_obsession()
endfunction
""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""