bug#23179: 25.0.92; Restore `M-,' to continue etags search

[Dmitry Gutov]

On 04/04/2016 06:49 PM, Eli Zaretskii wrote:

> > I only want the xref UI to be displayed when doing commands like 
> > `find-all-occurences' etc. When doing a
> > plain search, there is no need for it.
>
> Dmitry, is the patch below okay with you?  Any comments?  (I will add
> documentation if this is acceptable.)

First, it would take effect in both xref-find-definitions and 
xref-find-references, whereas Anders said that he wants that UI only for 
the former, IIUC.

Second, I'd rather you instead create a new separate function to set 
xref-show-xrefs-function to.

For now, you can copy the definition of xref--show-xref-buffer and 
modify it not to show the buffer. That will make it easier to make 
independent changes in that new UI. As well as make it easier for me to 
disclaim the responsibility for it (sorry).

Go ahead if Anders likes it, but personally I don't see a lot of point, 
at least as long as the user still has to wait until all results are 
fetched.