Re: Poll: Change xref-show-definitions-function's default?

[martin rudalics <rudalics@gmx.at>]

 > Do you mean something like this:
 > https://github.com/fmdkdd/dotfiles/blob/master/emacs/.emacs.d/elisp/xref-posframe.el?

I don't know.  After evaluating with emacs -Q

(progn
   (load "~/temp/posframe.el")
   (load "~/temp/xref-posframe.el")
   (global-set-key (kbd "M-.") #'xref-posframe-dwim)
   (find-file "~/emacs-git/quick/src/xdisp.c")
   (re-search-forward "get_next_display_element"))

I typed M-. and after confirming the TAGS table prompt I got an *xref*
window below the xdisp.c window displaying

/home/martin/emacs-git/quick/src/xdisp.c
7244: #define GET_NEXT_DISPLAY_ELEMENT(
7396: get_next_display_element

What I expected was to show these two lines in a menu (or posframe)
right above or below the "get_next_display_element" string in xdisp.c,
allow navigation there via <up> and <down> and having <right> or <RET>
get me to the corresponding tag, simultaneously popping down the menu
(or posframe).  Have I done something wrong?

In cases where there is only one definition like `set_iterator_to_next'
below, M-. first gets me a four lines frame with a short description
and then gets me to the definition as expected.

Thanks, martin