vim-airline/autoload/airline/extensions/tabline.vim
Christian Brabandt 313a6fcad2
tabline: prevent flicker on Windows
calling settabvar() while evaluating the 'tabline' setting apparently
causes flicker on Windows. Fall back to using `:let t:var` to store the
content in the current tabpage.

This is not as good as using `settabvar()` since we cannot store the
title for other tabs, but at least it should prevent the flicker and at
the same time at least cache the title for the current tabpage.
2017-06-27 18:28:28 +02:00

202 lines
7.5 KiB
VimL

" MIT License. Copyright (c) 2013-2016 Bailey Ling.
" vim: et ts=2 sts=2 sw=2
scriptencoding utf-8
let s:formatter = get(g:, 'airline#extensions#tabline#formatter', 'default')
let s:show_buffers = get(g:, 'airline#extensions#tabline#show_buffers', 1)
let s:show_tabs = get(g:, 'airline#extensions#tabline#show_tabs', 1)
let s:ignore_bufadd_pat = get(g:, 'airline#extensions#tabline#ignore_bufadd_pat', '\c\vgundo|undotree|vimfiler|tagbar|nerd_tree')
let s:taboo = get(g:, 'airline#extensions#taboo#enabled', 1) && get(g:, 'loaded_taboo', 0)
if s:taboo
let g:taboo_tabline = 0
endif
let s:ctrlspace = get(g:, 'CtrlSpaceLoaded', 0)
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()
call s:toggle_on()
call a:ext.add_theme_func('airline#extensions#tabline#load_theme')
endfunction
function! s:toggle_off()
call airline#extensions#tabline#autoshow#off()
call airline#extensions#tabline#tabs#off()
call airline#extensions#tabline#buffers#off()
call airline#extensions#tabline#ctrlspace#off()
endfunction
function! s:toggle_on()
call airline#extensions#tabline#autoshow#on()
call airline#extensions#tabline#tabs#on()
call airline#extensions#tabline#buffers#on()
call airline#extensions#tabline#ctrlspace#on()
set tabline=%!airline#extensions#tabline#get()
endfunction
function! s:update_tabline()
if get(g:, 'airline#extensions#tabline#disable_refresh', 0)
return
endif
let match = expand('<afile>')
if pumvisible()
return
elseif !get(g:, 'airline#extensions#tabline#enabled', 0)
return
" return, if buffer matches ignore pattern or is directory (netrw)
elseif empty(match)
\ || match(match, s:ignore_bufadd_pat) > -1
\ || isdirectory(expand("<afile>"))
return
endif
doautocmd User BufMRUChange
endfunction
function! airline#extensions#tabline#load_theme(palette)
if pumvisible()
return
endif
let colors = get(a:palette, 'tabline', {})
" Theme for tabs on the left
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)
if has_key(a:palette, 'normal_modified') && has_key(a:palette.normal_modified, 'airline_c')
let l:tabmodu = get(colors, 'airline_tabmod_unsel', a:palette.normal_modified.airline_c)
else
"Fall back to normal airline_c if modified airline_c isn't present
let l:tabmodu = get(colors, 'airline_tabmod_unsel', a:palette.normal.airline_c)
endif
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_tabmod_unsel', l:tabmodu)
call airline#highlighter#exec('airline_tabhid', l:tabhid)
" Theme for tabs on the right
let l:tabsel_right = get(colors, 'airline_tabsel_right', a:palette.normal.airline_a)
let l:tab_right = get(colors, 'airline_tab_right', a:palette.inactive.airline_c)
let l:tabmod_right = get(colors, 'airline_tabmod_right', a:palette.insert.airline_a)
let l:tabhid_right = get(colors, 'airline_tabhid_right', a:palette.normal.airline_c)
if has_key(a:palette, 'normal_modified') && has_key(a:palette.normal_modified, 'airline_c')
let l:tabmodu_right = get(colors, 'airline_tabmod_unsel_right', a:palette.normal_modified.airline_c)
else
"Fall back to normal airline_c if modified airline_c isn't present
let l:tabmodu_right = get(colors, 'airline_tabmod_unsel_right', a:palette.normal.airline_c)
endif
call airline#highlighter#exec('airline_tab_right', l:tab_right)
call airline#highlighter#exec('airline_tabsel_right', l:tabsel_right)
call airline#highlighter#exec('airline_tabmod_right', l:tabmod_right)
call airline#highlighter#exec('airline_tabhid_right', l:tabhid_right)
call airline#highlighter#exec('airline_tabmod_unsel_right', l:tabmodu_right)
endfunction
let s:current_tabcnt = -1
function! airline#extensions#tabline#get()
let curtabcnt = tabpagenr('$')
if curtabcnt != s:current_tabcnt
let s:current_tabcnt = curtabcnt
call airline#extensions#tabline#tabs#invalidate()
call airline#extensions#tabline#buffers#invalidate()
call airline#extensions#tabline#ctrlspace#invalidate()
endif
if !exists('#airline#BufAdd#*')
autocmd airline BufAdd * call <sid>update_tabline()
endif
if s:ctrlspace
return airline#extensions#tabline#ctrlspace#get()
elseif s:show_buffers && curtabcnt == 1 || !s:show_tabs
return airline#extensions#tabline#buffers#get()
else
return airline#extensions#tabline#tabs#get()
endif
endfunction
function! airline#extensions#tabline#title(n)
let title = ''
if s:taboo
let title = TabooTabTitle(a:n)
endif
if empty(title) && exists('*gettabvar')
let title = gettabvar(a:n, 'title')
endif
if empty(title)
let buflist = tabpagebuflist(a:n)
let winnr = tabpagewinnr(a:n)
let all_buffers = airline#extensions#tabline#buflist#list()
let title = airline#extensions#tabline#get_buffer_name(
\ buflist[winnr - 1],
\ filter(buflist, 'index(all_buffers, v:val) != -1'))
endif
if exists("*settabvar") && !empty(title)
" don't use settabvar, it causes a refresh,
" which in turn causes flicker on windows
"call settabvar(a:n, 'title', title)
if tabpagenr() == a:n
let t:title = title
endif
endif
return title
endfunction
function! airline#extensions#tabline#get_buffer_name(nr, ...)
let buffers = a:0 ? a:1 : airline#extensions#tabline#buflist#list()
return airline#extensions#tabline#formatters#{s:formatter}#format(a:nr, buffers)
endfunction
function! airline#extensions#tabline#new_builder()
let builder_context = {
\ 'active' : 1,
\ 'tabline' : 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 builder_context.left_sep = get(g:, 'airline#extensions#tabline#left_sep' , g:airline_left_sep)
let builder_context.left_alt_sep = get(g:, 'airline#extensions#tabline#left_alt_sep' , g:airline_left_alt_sep)
else
let builder_context.left_sep = get(g:, 'airline#extensions#tabline#left_sep' , ' ')
let builder_context.left_alt_sep = get(g:, 'airline#extensions#tabline#left_alt_sep' , '|')
endif
return airline#builder#new(builder_context)
endfunction
function! airline#extensions#tabline#group_of_bufnr(tab_bufs, bufnr)
let cur = bufnr('%')
if cur == a:bufnr
if g:airline_detect_modified && getbufvar(a:bufnr, '&modified')
let group = 'airline_tabmod'
else
let group = 'airline_tabsel'
endif
else
if g:airline_detect_modified && getbufvar(a:bufnr, '&modified')
let group = 'airline_tabmod_unsel'
elseif index(a:tab_bufs, a:bufnr) > -1
let group = 'airline_tab'
else
let group = 'airline_tabhid'
endif
endif
return group
endfunction