Re: How can I do something whenever screen scrolled in vim?

> I want to vim to execute a shell command to notify Chrome whenever the
> screen has scrolled (after normal commands like <c-f> <c-b> <c-u> <c-d>
> etc.), but I could not find any event of autocmd to do that for me, is
> there any way I can do that?

There are two ways:

First, you can just override these mappings:

nnoremap <C-f> :call NotifyChrome()<CR><C-f>
nnoremap <C-d> :call NotifyChrome()<CR><C-d>
.. etc ..

Second, you could use the CursorMoved autocmd and some logic to see if the
visible area has changed. Untested:

autocmd BufReadPost myfile let b:store = [line("w0"), line("w$")]
autocmd CursorMoved myfile
\ if [line("w0"), line("w$")] != b:store
\| call NotifyChrome()
\| let b:store = [line("w0"), line("w$")]
\|endif

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