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whitespace: support multiline statusline for warnings

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Add a new airline_section_warning2 that displays whitespace warnings on
a second statusline line when Vim supports the statuslineopt option
(Vim 9.2.0083+) and g:airline_multiline is set. The second line only
appears when there are actual whitespace issues, avoiding an empty
second line when the buffer is clean.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Christian Brabandt
2026-04-12 08:15:15 +00:00
parent 7fe264257e
commit ee44d57525
7 changed files with 77 additions and 16 deletions
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autoload/airline/extensions/whitespace.vim
+14 -3
View File
@@ -161,6 +161,9 @@ function! airline#extensions#whitespace#check()
endif
endif
endif
if airline#util#has_multiline()
return b:airline_whitespace_check
endif
return airline#util#shorten(b:airline_whitespace_check, 120, 9)
endfunction
@@ -178,8 +181,16 @@ function! airline#extensions#whitespace#toggle()
if exists("g:airline#extensions#whitespace#enabled")
let g:airline#extensions#whitespace#enabled = s:enabled
if s:enabled && match(g:airline_section_warning, '#whitespace#check') < 0
let g:airline_section_warning .= airline#section#create(['whitespace'])
if s:enabled
if airline#util#has_multiline() && exists('g:airline_section_warning2')
if match(g:airline_section_warning2, '#whitespace#check') < 0
let g:airline_section_warning2 .= airline#section#create(['whitespace'])
endif
else
if match(g:airline_section_warning, '#whitespace#check') < 0
let g:airline_section_warning .= airline#section#create(['whitespace'])
endif
endif
call airline#update_statusline()
endif
endif
@@ -211,7 +222,7 @@ function! s:ws_refresh()
return
endif
unlet! b:airline_whitespace_check
if get(g:, 'airline_skip_empty_sections', 0)
if get(g:, 'airline_skip_empty_sections', 0) || airline#util#has_multiline()
exe ':AirlineRefresh!'
endif
let b:airline_ws_changedtick = b:changedtick