GNU bug report logs - #73768
'read-passwd-mode' can clobber user defined mode lines

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From: martin rudalics <rudalics <at> gmx.at>
To: Michael Albinus <michael.albinus <at> gmx.de>
Cc: 73768 <at> debbugs.gnu.org
Subject: bug#73768: 'read-passwd-mode' can clobber user defined mode lines
Date: Sun, 13 Oct 2024 17:09:30 +0200

Hi Michael

> I tried to reproduce your recipe, but I couldn't. Likely, I have a too
> simple minded use of different Emacs windows. And a not customized mode
> line. Note, that I'm not familiar with the windows machinery in Emacs at
> all.

No customized mode line is needed.  Either with emacs -Q evaluate

(progn
  (set-window-parameter nil 'no-other-window t)
  (with-selected-window (split-window nil -5)
    (set-window-buffer nil (get-buffer-create "*text*"))
    (set-window-parameter nil 'no-other-window t)
    (read-passwd "PWD:")))

or with

emacs -Q --eval "(setq default-frame-alist '((minibuffer . nil)))

evaluate via M-:

(with-selected-window (get-buffer-window "*scratch*" t)
  (with-selected-window (split-window nil -5)
    (set-window-buffer nil (get-buffer-create "*text*"))
    (read-passwd "PWD:")))

In either case it's important that (1) there is no suitable window
"above" and (2) 'minibuffer-selected-window' doesn't return the largest
window on its frame.

martin

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