From: Andrea Greselin <greselin.andrea@gmail.com>
To: martin rudalics <rudalics@gmx.at>
Cc: 36193@debbugs.gnu.org
Subject: bug#36193: 26.2; 'set-window-scroll-bars' setting doesn't take effect in emacsclient session
Date: Tue, 18 Jun 2019 15:59:53 +0200 [thread overview]
Message-ID: <CAJ_oJbYUMGD1nZ7hZx_WCH7NLdjZkmqne2q1bz=+xTEDzP-0-Q@mail.gmail.com> (raw)
In-Reply-To: <e9ddd67c-8a80-a5a0-aec0-2db3dffc0942@gmx.at>
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> 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, 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.
On Tue, 18 Jun 2019 at 15:42, martin rudalics <rudalics@gmx.at> wrote:
> > Yes. If in 'hide-minibuffer-scrollbar' I replace '(minibuffer-window)'
> with
> > 'nil', the scratch buffer has no scroll bars and they don't reappear
> even
> > if the buffer become longer than the window height. They are only
> > re-enabled if I open another buffer in that window, and then they
> persist.
>
> Ahh... I should have asked you that so it's good you noticed it.
> This shows that the behavior is not minibuffer window specific.
>
> > No, messages are shown at startup without the scroll bars being shown.
> if I
> > do M-x or M-: or anything that moves the point to the minibuffer, then
> they
> > are re-enabled.
>
> So showing another buffer in the minibuffer window reenables the
> scroll bars. This is consistent with the first observation.
>
> The behavior (which I would call a bug) is caused by set_window_buffer
> when called with keep_margins_p nil and is completely unrelated to
> whether you do it in emacsclient or in a "normal" session. 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
> behavior is described in the Elisp manual on 'set-window-scroll-bars'
>
> The values specified here may be later overridden by invoking
> ‘set-window-buffer’ (*note Buffers and Windows::) on WINDOW with
> its KEEP-MARGINS argument ‘nil’ or omitted.
>
> but I consistently forget about it.
>
> If people agree that this is a bug, we can try to find a more general
> fix. Otherwise, I'll fix the minibuffer window scroll bars with the
> help of a separate variable (I have written the code some time ago and
> would "only" have to find it now).
>
> As a temporary workaround you can try to set the buffer local values
> of 'scroll-bar-width' to zero in all buffers that might eventually
> show up in the minibuffer window, for example, thusly
>
> (progn
> (set-window-scroll-bars (minibuffer-window) 0 nil)
> (with-current-buffer (get-buffer-create " *Echo Area 0*")
> (setq scroll-bar-width 0))
> (with-current-buffer (get-buffer-create " *Echo Area 1*")
> (setq scroll-bar-width 0))
> (with-current-buffer (get-buffer-create " *Minibuf-0*")
> (setq scroll-bar-width 0))
> (with-current-buffer (get-buffer-create " *Minibuf-1*")
> (setq scroll-bar-width 0)))
>
> This should work as long as you don't enable recursive minibuffers.
>
> martin
>
>
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next prev parent reply other threads:[~2019-06-18 13:59 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-13 14:57 bug#36193: 26.2; 'set-window-scroll-bars' setting doesn't take effect in emacsclient session Andrea Greselin
2019-06-13 16:11 ` Eli Zaretskii
2019-06-13 18:48 ` Andrea Greselin
2019-06-16 8:17 ` martin rudalics
2019-06-18 12:46 ` Andrea Greselin
2019-06-18 13:42 ` martin rudalics
2019-06-18 13:59 ` Andrea Greselin [this message]
2019-06-19 9:14 ` martin rudalics
2019-07-17 8:38 ` martin rudalics
2019-07-18 8:12 ` Andrea Greselin
2019-07-19 8:15 ` martin rudalics
2019-07-19 9:09 ` Eli Zaretskii
2019-07-22 7:41 ` martin rudalics
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