Re: Suggestion: A fringe indicator that shows the last/first line before scrolling

["David De La Harpe Golden" <david.delaharpe.golden@gmail.com>]

On 28/02/2008, Lennart Borgman (gmail) <lennart.borgman@gmail.com> wrote:
>  >
>  > See first caveat in opening comments in Martin's scroll-restore.el
>  >
>  > http://lists.gnu.org/archive/html/emacs-devel/2008-02/msg01892.html
>  >
>  > and discussion thread following it.
>
>
> Not sure I understood everything there,

Sorry, I was initially wrongly presenting the issue - not about it
being non "commands", I guess (interactive "e") functions should still
count as commands. Martin found post-command-hooks apparently don't
run in some circumstances for such things - here's the relevant caveat
text I referred to:

;;   Scroll Restore mode does not handle `switch-frame' and
;;   `vertical-scroll-bar' events executed within the loops in
;;   `mouse-show-mark' and `scroll-bar-drag' (these don't call
;;   `post-command-hook' as needed by Scroll Restore mode).


So try this (on X11 at least):

(add-hook 'post-command-hook
  (lambda () (message "post-command-hook %s" (current-time))))

Then activate the region with the mouse, scroll with scroll bar.. no update.

This might just be a bug, or intentional (though kind of inconsistent)
behaviour, I don't know.