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tabline: Give error message, if switching buffers is not possible

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When using Neovim and switching to another buffer with the mouse and the
current buffer is modified, Vim refuses to switch buffers rightfully,
if the user has not set 'hidden' or 'autowrite' (because it is going to
unload the buffer from memory).

So catch this case and let the user know.

Note: :b! would be another possibility, but I do not prefer using this
attribute, because it is not clear what happens to the current buffer. I
think it is made hidden, but I prefer to be explicit here

closes #2478
This commit is contained in:
Christian Brabandt 2021-12-05 18:47:52 +01:00
parent 841a355196
commit de73a21903
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1 changed files with 5 additions and 1 deletions
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6
autoload/airline/extensions/tabline/buffers.vim
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@ -220,7 +220,11 @@ function! airline#extensions#tabline#buffers#clickbuf(minwid, clicks, button, mo
if a:clicks == 1 && a:modifiers !~# '[^ ]'
if a:button is# 'l'
" left button - switch to buffer
silent execute 'buffer' a:minwid
try
silent execute 'buffer' a:minwid
catch
call airline#util#warning("Cannot switch buffer, current buffer is modified! See :h 'hidden'")
endtry
elseif a:button is# 'm'
" middle button - delete buffer