GNU bug report logs - #36193
26.2; 'set-window-scroll-bars' setting doesn't take effect in emacsclient session

Previous Next

Full log

View this message in rfc822 format

From: martin rudalics <rudalics <at> gmx.at>
To: Andrea Greselin <greselin.andrea <at> gmail.com>
Cc: Eli Zaretskii <eliz <at> gnu.org>, 36193 <at> debbugs.gnu.org
Subject: bug#36193: 26.2; 'set-window-scroll-bars' setting doesn't take effect in emacsclient session
Date: Wed, 19 Jun 2019 11:14:04 +0200

>> That is if I evaluate with emacs -Q
>>    (set-window-scroll-bars (minibuffer-window) 0 nil)
>> and then type M-x, I get the scroll bars back just as you do.
>
> The behaviour is different in my case: when I use
> 'after-make-frame-functions' as in the snippet in my second message,

This one, I suppose

(defun hide-minibuffer-scrollbar (frame)
  (with-selected-frame frame
    (set-window-scroll-bars (minibuffer-window) 0 nil)))

(if (daemonp)
    (add-hook 'after-make-frame-functions #'hide-minibuffer-scrollbar) ; Only for client sessions
  (set-window-scroll-bars (minibuffer-window) 0 nil))

> the
> scroll bar persists after doing M-x. If I evaluate
>    (set-window-scroll-bars (minibuffer-window) 0 nil)
> in a running session, they are displayed only as long as the minibuffer is
> active, and then they are turned off again.

Since I never use emacsclient I can't tell and have no idea how this
is supposed to work.  It could be caused by this part in minibuf.c

  if ((noninteractive
       /* In case we are running as a daemon, only do this before
	  detaching from the terminal.  */
       || (IS_DAEMON && DAEMON_RUNNING))
      && NILP (Vexecuting_kbd_macro))
    {
      val = read_minibuf_noninteractive (prompt, expflag, defalt);
      return unbind_to (count, val);
    }

which avoids saving and restoring the window configuration and thus
removing the scroll bar when restoring.

Maybe someone else can clarify how this is supposed to work.

In a normal session the scroll bar gets removed after M-x is done so
apparently restoring the old window configuration also removes the
scroll bar.

martin

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.