GNU bug report logs - #78871
31.0.50

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Johann Höchtl <johann.hoechtl <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 31.0.50
Date: Mon, 23 Jun 2025 13:24:14 +0200

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When I open a speedbar-window and right-click with the mouse on the
status-bar, the speed-bar disappears.

When I try to bring it back with speedbar-window I get the error message
(in messages): "funcall-interactively: Attempt to delete the sole visible
or iconified frame"

I think there sould be a way to bring back that "invisible frame".

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Message #8 received at 78871 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Johann Höchtl <johann.hoechtl <at> gmail.com>
Cc: 78871 <at> debbugs.gnu.org
Subject: Re: bug#78871: 31.0.50
Date: Mon, 23 Jun 2025 14:49:55 +0300

> From: Johann Höchtl <johann.hoechtl <at> gmail.com>
> Date: Mon, 23 Jun 2025 13:24:14 +0200
> 
> When I open a speedbar-window and right-click with the mouse on the status-bar, the speed-bar
> disappears.

What do you mean by "status bar" here?  I tried right-clicking on
various portions of the Speedbar frame, but couldn't cause it to
"disappear".

> When I try to bring it back with speedbar-window I get the error message (in messages):
> "funcall-interactively: Attempt to delete the sole visible or iconified frame"

Doesn't happen here, either.

> I think there sould be a way to bring back that "invisible frame".

It would be good to understand first what kind of "invisible frame" we
are talking about.  Can you post a complete recipe starting from
"emacs -Q"?

Thanks.

Message #11 received at 78871 <at> debbugs.gnu.org (full text, mbox):

From: Johann Höchtl <johann.hoechtl <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 78871 <at> debbugs.gnu.org
Subject: Re: bug#78871: 31.0.50
Date: Mon, 23 Jun 2025 14:07:31 +0200

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> It would be good to understand first what kind of "invisible frame" we
are talking about.  Can you post a complete recipe starting from
"emacs -Q"?

Sure:

emacs -Q
M-x speedbar-window
Use the mouse and move over to the generated speedbar-window, move over
anywhere the part where "# Files " (isn't that the status bar) is written
and press right mouse button
Effect: Speedbar Window disappears.
Any subsequent attempt to bring the speedbar (M-x speedbar) of the Windows
(M-x speedbar-window) back results in the error message "Attempt to delete
the sole visible or iconified frame"


This error message also appears when you focus into the speedbar-window and
press "Q" (which calls delete-frame).

This might be the actual problem as a speedbar-window is no longer a frame
on it's own but embedded into an existing frame and the last visible frame
must no be deleted with delete-frame.

Am Mo., 23. Juni 2025 um 13:50 Uhr schrieb Eli Zaretskii <eliz <at> gnu.org>:

> > From: Johann Höchtl <johann.hoechtl <at> gmail.com>
> > Date: Mon, 23 Jun 2025 13:24:14 +0200
> >
> > When I open a speedbar-window and right-click with the mouse on the
> status-bar, the speed-bar
> > disappears.
>
> What do you mean by "status bar" here?  I tried right-clicking on
> various portions of the Speedbar frame, but couldn't cause it to
> "disappear".
>
> > When I try to bring it back with speedbar-window I get the error message
> (in messages):
> > "funcall-interactively: Attempt to delete the sole visible or iconified
> frame"
>
> Doesn't happen here, either.
>
> > I think there sould be a way to bring back that "invisible frame".
>
> It would be good to understand first what kind of "invisible frame" we
> are talking about.  Can you post a complete recipe starting from
> "emacs -Q"?
>
> Thanks.
>

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Message #14 received at 78871 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Johann Höchtl <johann.hoechtl <at> gmail.com>
Cc: 78871 <at> debbugs.gnu.org
Subject: Re: bug#78871: 31.0.50
Date: Mon, 23 Jun 2025 16:59:24 +0300

> From: Johann Höchtl <johann.hoechtl <at> gmail.com>
> Date: Mon, 23 Jun 2025 14:07:31 +0200
> Cc: 78871 <at> debbugs.gnu.org
> 
> > It would be good to understand first what kind of "invisible frame" we
> are talking about.  Can you post a complete recipe starting from
> "emacs -Q"? 
> 
> Sure:
> 
> emacs -Q
> M-x speedbar-window
> Use the mouse and move over to the generated speedbar-window, move over anywhere the part where "#
> Files " (isn't that the status bar) is written and press right mouse button
> Effect: Speedbar Window disappears. 
> Any subsequent attempt to bring the speedbar (M-x speedbar) of the Windows (M-x speedbar-window) back
> results in the error message "Attempt to delete the sole visible or iconified frame"

Ah, okay.  This happens because mouse-3 on the mode line of the
speedbar window just deletes the speedbar window.  It should instead
call speedbar-window--close.  Patches welcome.

As a workaround, you can manually set the variable speedbar-frame to
nil:

  M-: (setq speedbar-frame nil) RET

Then "M-x speedbar-window" will work again.

> This error message also appears when you focus into the speedbar-window and press "Q" (which calls
> delete-frame). 

This is not a bug, since there is only one frame, and Emacs doesn't
allow to delete such a frame.

Message #17 received at 78871 <at> debbugs.gnu.org (full text, mbox):

From: Johann Höchtl <johann.hoechtl <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 78871 <at> debbugs.gnu.org
Subject: Re: bug#78871: 31.0.50
Date: Tue, 24 Jun 2025 17:19:00 +0200

[Message part 1 (text/plain, inline)]

>
>
>
>
> > This error message also appears when you focus into the speedbar-window
> and press "Q" (which calls
> > delete-frame).
>
> This is not a bug, since there is only one frame, and Emacs doesn't
> allow to delete such a frame.
>

So if I open Emacs, C-x 5 2 to create a new Frame, M-x speedbar-window and
therein press Q I would not assume to close this the whole frame.

Q is from a time when there was just one speedbar-frame.

>

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