vim-airline/autoload/airline.vim

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" MIT License. Copyright (c) 2013-2021 Bailey Ling et al.
" vim: et ts=2 sts=2 sw=2
scriptencoding utf-8
let g:airline_statusline_funcrefs = get(g:, 'airline_statusline_funcrefs', [])
let s:sections = ['a','b','c','gutter','x','y','z', 'error', 'warning']
let s:inactive_funcrefs = []
let s:contexts = {}
let s:core_funcrefs = [
\ function('airline#extensions#apply'),
\ function('airline#extensions#default#apply') ]
function! airline#add_statusline_func(name)
call airline#add_statusline_funcref(function(a:name))
endfunction
function! airline#add_statusline_funcref(function)
if index(g:airline_statusline_funcrefs, a:function) >= 0
call airline#util#warning(printf('The airline statusline funcref "%s" has already been added.', string(a:function)))
return
endif
call add(g:airline_statusline_funcrefs, a:function)
endfunction
function! airline#remove_statusline_func(name)
let i = index(g:airline_statusline_funcrefs, function(a:name))
if i > -1
call remove(g:airline_statusline_funcrefs, i)
endif
endfunction
function! airline#add_inactive_statusline_func(name)
call add(s:inactive_funcrefs, function(a:name))
endfunction
function! airline#load_theme()
let g:airline_theme = get(g:, 'airline_theme', 'dark')
if exists('*airline#themes#{g:airline_theme}#refresh')
call airline#themes#{g:airline_theme}#refresh()
endif
let palette = g:airline#themes#{g:airline_theme}#palette
call airline#themes#patch(palette)
if exists('g:airline_theme_patch_func')
let Fn = function(g:airline_theme_patch_func)
call Fn(palette)
endif
call airline#highlighter#load_theme()
call airline#extensions#load_theme()
call airline#update_statusline()
endfunction
" Load an airline theme
function! airline#switch_theme(name, ...)
let silent = get(a:000, '0', 0)
" get all available themes
let themes = airline#util#themes('')
let err = 0
try
if index(themes, a:name) == -1
" Theme not available
if !silent
call airline#util#warning(printf('The specified theme "%s" cannot be found.', a:name))
endif
throw "not-found"
let err = 1
else
exe "ru autoload/airline/themes/". a:name. ".vim"
let g:airline_theme = a:name
endif
catch /^Vim/
" catch only Vim errors, not "not-found"
call airline#util#warning(printf('There is an error in theme "%s".', a:name))
if &vbs
call airline#util#warning(v:exception)
endif
let err = 1
endtry
if err
if exists('g:airline_theme')
return
else
let g:airline_theme = 'dark'
endif
endif
unlet! w:airline_lastmode
call airline#load_theme()
call airline#util#doautocmd('AirlineAfterTheme')
" this is required to prevent clobbering the startup info message, i don't know why...
call airline#check_mode(winnr())
endfunction
" Try to load the right theme for the current colorscheme
function! airline#switch_matching_theme()
if exists('g:colors_name')
let existing = g:airline_theme
let theme = tr(tolower(g:colors_name), '-', '_')
try
call airline#switch_theme(theme, 1)
return 1
catch
for map in items(g:airline_theme_map)
if match(g:colors_name, map[0]) > -1
try
call airline#switch_theme(map[1], 1)
catch
call airline#switch_theme(existing)
endtry
return 1
endif
endfor
endtry
endif
return 0
endfunction
" Update the statusline
function! airline#update_statusline()
if airline#util#stl_disabled(winnr())
return
endif
let range = filter(range(1, winnr('$')), 'v:val != winnr()')
" create inactive statusline
call airline#update_statusline_inactive(range)
unlet! w:airline_render_left w:airline_render_right
exe 'unlet! ' 'w:airline_section_'. join(s:sections, ' w:airline_section_')
" Now create the active statusline
let w:airline_active = 1
let context = { 'winnr': winnr(), 'active': 1, 'bufnr': winbufnr(winnr()) }
call s:invoke_funcrefs(context, g:airline_statusline_funcrefs)
endfunction
" Function to be called to make all statuslines inactive
" Triggered on FocusLost autocommand
function! airline#update_statusline_focuslost()
if get(g:, 'airline_focuslost_inactive', 0)
let bufnr=bufnr('%')
call airline#highlighter#highlight_modified_inactive(bufnr)
call airline#highlighter#highlight(['inactive'], bufnr)
call airline#update_statusline_inactive(range(1, winnr('$')))
endif
endfunction
" Function to draw inactive statuslines for inactive windows
function! airline#update_statusline_inactive(range)
if airline#util#stl_disabled(winnr())
return
endif
for nr in a:range
if airline#util#stl_disabled(nr)
continue
endif
call setwinvar(nr, 'airline_active', 0)
let context = { 'winnr': nr, 'active': 0, 'bufnr': winbufnr(nr) }
if get(g:, 'airline_inactive_alt_sep', 0)
call extend(context, {
\ 'left_sep': g:airline_left_alt_sep,
\ 'right_sep': g:airline_right_alt_sep }, 'keep')
endif
call s:invoke_funcrefs(context, s:inactive_funcrefs)
endfor
endfunction
" Gather output from all funcrefs which will later be returned by the
" airline#statusline() function
function! s:invoke_funcrefs(context, funcrefs)
let builder = airline#builder#new(a:context)
let err = airline#util#exec_funcrefs(a:funcrefs + s:core_funcrefs, builder, a:context)
if err == 1
let a:context.line = builder.build()
let s:contexts[a:context.winnr] = a:context
let option = get(g:, 'airline_statusline_ontop', 0) ? '&tabline' : '&statusline'
call setwinvar(a:context.winnr, option, '%!airline#statusline('.a:context.winnr.')')
endif
endfunction
" Main statusline function per window
" will be set to the statusline option
function! airline#statusline(winnr)
if has_key(s:contexts, a:winnr)
return '%{airline#check_mode('.a:winnr.')}'.s:contexts[a:winnr].line
endif
" in rare circumstances this happens...see #276
return ''
endfunction
" Check if mode has changed
function! airline#check_mode(winnr)
if !has_key(s:contexts, a:winnr)
return ''
endif
let context = s:contexts[a:winnr]
if get(w:, 'airline_active', 1)
let l:m = mode(1)
if l:m ==# "i"
let l:mode = ['insert']
elseif l:m[0] ==# "i"
let l:mode = ['insert']
elseif l:m ==# "Rv"
let l:mode =['replace']
elseif l:m[0] ==# "R"
let l:mode = ['replace']
elseif l:m[0] =~# '\v(v|V||s|S|)'
let l:mode = ['visual']
elseif l:m ==# "t"
let l:mode = ['terminal']
elseif l:m[0] ==# "c"
let l:mode = ['commandline']
elseif l:m ==# "no" " does not work, most likely, Vim does not refresh the statusline in OP mode
let l:mode = ['normal']
elseif l:m[0:1] ==# 'ni'
let l:mode = ['insert']
let l:m = 'ni'
else
let l:mode = ['normal']
endif
if exists("*VMInfos") && !empty(VMInfos())
" Vim plugin Multiple Cursors https://github.com/mg979/vim-visual-multi
let l:m = 'multi'
endif
if index(['Rv', 'no', 'ni', 'ix', 'ic', 'multi'], l:m) == -1
let l:m = l:m[0]
endif
let w:airline_current_mode = get(g:airline_mode_map, l:m, l:m)
else
let l:mode = ['inactive']
let w:airline_current_mode = get(g:airline_mode_map, '__')
endif
if g:airline_detect_modified && &modified
call add(l:mode, 'modified')
endif
if g:airline_detect_paste && &paste
call add(l:mode, 'paste')
endif
if g:airline_detect_crypt && exists("+key") && !empty(&key)
call add(l:mode, 'crypt')
endif
if g:airline_detect_spell && &spell
call add(l:mode, 'spell')
endif
if &readonly || ! &modifiable
call add(l:mode, 'readonly')
endif
let mode_string = join(l:mode)
if get(w:, 'airline_lastmode', '') != mode_string
call airline#highlighter#highlight_modified_inactive(context.bufnr)
call airline#highlighter#highlight(l:mode, context.bufnr)
call airline#util#doautocmd('AirlineModeChanged')
let w:airline_lastmode = mode_string
endif
return ''
endfunction
function! airline#update_tabline()
if get(g:, 'airline_statusline_ontop', 0)
call airline#extensions#tabline#redraw()
endif
endfunction
function! airline#mode_changed()
" airline#visual_active
" Boolean: for when to get visual wordcount
" needed for the wordcount extension
let g:airline#visual_active = (mode() =~? '[vs]')
call airline#update_tabline()
endfunction