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bug#35860: Delayed window positioning after buffer display
From: |
Eli Zaretskii |
Subject: |
bug#35860: Delayed window positioning after buffer display |
Date: |
Fri, 24 May 2019 09:32:22 +0300 |
> From: Juri Linkov <juri@linkov.net>
> Cc: 35860@debbugs.gnu.org
> Date: Thu, 23 May 2019 23:56:17 +0300
>
> >> ;; `help-window-point-marker' is a marker you can move to a valid
> >> ;; position of the buffer shown in the help window in order to override
> >> ;; the standard positioning mechanism (`point-min') chosen by
> >> ;; `with-output-to-temp-buffer' and `with-temp-buffer-window'.
> >> ;; `with-help-window' has this point nowhere before exiting. Currently
> >> ;; used by `view-lossage' to assert that the last keystrokes are always
> >> ;; visible.
> >> (defvar help-window-point-marker (make-marker)
> >> "Marker to override default `window-point' in help windows.")
> >
> > Why not bind switch-to-buffer-preserve-window-point to nil instead?
>
> I don't know. I tried to replace
>
> (set-marker help-window-point-marker (point))
>
> with
>
> (goto-char (point-max))
> (setq-local switch-to-buffer-preserve-window-point nil)
>
> and it doesn't set point to the end of the Help buffer
> when it's displayed for the first time.
Can you show a recipe starting from "emacs -Q" that exhibits this
behavior. It sounds like I'm confused about what exactly happens.