Re: Don't trigger BufLeave with preview window in popup completion menu

John Otter wrote:

> when opening the preview window in vim using commands like :pedit
> etc... the cursor isn't moved and the window isn't changed. However
> the buffer is left for the preview buffer just for a moment triggering
> a BufLeave event type.
>
> While I can just use :noautcmd pedit when opening the preview window
> manually to not trigger the event, if I'm using the 'preview' option
> in completeopt there doesn't seem to be a way to not trigger a
> BufLeave event when moving between the popup menu results that open
> the preview window.
> Any solutions to this?

What is the sequence of events in this case? I would expect a BufLeave
for the current window, a BufEnter for the preview window and then the
opposite, going back to the original window. This way there is a chance
to set things up in the preview window.

Does it happen differently?

If needed we could add a "opening preview window" flag somewhere.

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