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From: Alan Mackenzie <acm@muc.de>
To: Eli Zaretskii <eliz@gnu.org>
Cc: martin rudalics <rudalics@gmx.at>, 56305@debbugs.gnu.org, acm@muc.de
Subject: bug#56305: 29.0.50; 'yes-or-no-p' deselects minibuffer frame
Date: Sat, 2 Jul 2022 11:38:06 +0000	[thread overview]
Message-ID: <YsAuHihIvRl2RW5O@ACM> (raw)
In-Reply-To: <83o7yb5lqe.fsf@gnu.org>

Hello, Eli and Martin.

On Wed, Jun 29, 2022 at 22:10:49 +0300, Eli Zaretskii wrote:
> > Date: Wed, 29 Jun 2022 19:54:44 +0200
> > From: martin rudalics <rudalics@gmx.at>

> > With emacs -Q --load "~/mini.el" which contains the three lines

> > (setq use-dialog-box nil)
> > (setq default-frame-alist '((minibuffer . nil)))
> > (shell)

> > and type C-x C-c in the minibuffer frame.  This asks a 'yes-or-no-p'
> > question in the minibuffer frame but selects the *Process List* window
> > on the other frame.

> > FWICT this worked correctly until Emacs 26, was broken in Emacs 27,
> > returned to work in Emacs 28.1 and is now broken on both, release and
> > master branch, again.

> Alan, could you please look into this?  Emacs 28.2 is about to start
> pretest.

At the point in read_minibuf where recursive_edit_1 is called, all the
frame and window variables appear to be in order - things like
minibuf_window, current_buffer, selected_window, selected_frame, ...

What is not in order is the window system focus, which in the bug
scenario is on the "normal" frame rather than the minibuffer frame.  As a
matter of interest, if the C-x C-c command is invoked from the "normal"
frame, things work correctly.

As a matter of interest, when I moved from the "normal" frame to the
minibuffer frame with <alt><tab> (or clicking on the MB frame), there
wasn't the expected call to do_switch_frame ().

I don't understand why the current bug is happening; focus switching in
Emacs is complicated.  However, the following patch is, at least, a
workaround for the problem.  Should I commit it?


diff --git a/src/minibuf.c b/src/minibuf.c
index 0fc7f2caa1..5480d1f2af 100644
--- a/src/minibuf.c
+++ b/src/minibuf.c
@@ -896,6 +896,10 @@ read_minibuf (Lisp_Object map, Lisp_Object initial, Lisp_Object prompt,
   /* Don't allow the user to undo past this point.  */
   bset_undo_list (current_buffer, Qnil);
 
+  /* Ensure that the minibuffer frame has the window-system focus.
+     This is sometimes needed for minibuffer-only frames.  */
+  call2 (Qselect_frame_set_input_focus, mini_frame, Qt);
+
   recursive_edit_1 ();
 
   /* If cursor is on the minibuffer line,


> Thanks.

-- 
Alan Mackenzie (Nuremberg, Germany).





  parent reply	other threads:[~2022-07-02 11:38 UTC|newest]

Thread overview: 83+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-29 17:54 bug#56305: 29.0.50; 'yes-or-no-p' deselects minibuffer frame martin rudalics
2022-06-29 19:10 ` Eli Zaretskii
2022-06-30 10:35   ` Alan Mackenzie
2022-06-30 20:32   ` Alan Mackenzie
2022-07-02 11:38   ` Alan Mackenzie [this message]
2022-07-03  8:16     ` martin rudalics
2022-07-03 16:09       ` Alan Mackenzie
2022-07-03 16:17         ` Eli Zaretskii
2022-07-04 19:10           ` Alan Mackenzie
2022-07-04 19:21             ` Eli Zaretskii
2022-07-04 19:43               ` Alan Mackenzie
2022-07-05  2:29                 ` Eli Zaretskii
2022-07-05 15:59                   ` Alan Mackenzie
2022-07-05 16:24                     ` Eli Zaretskii
2022-07-05 17:09                       ` Alan Mackenzie
2022-07-06 17:04                       ` Alan Mackenzie
2022-07-06 17:29                         ` Eli Zaretskii
2022-07-06 18:16                           ` Alan Mackenzie
2022-07-06 18:34                             ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-07-06 18:58                             ` Andreas Schwab
2022-07-06 19:05                               ` Alan Mackenzie
2022-07-06 19:09                                 ` Andreas Schwab
2022-07-06 19:22                                   ` Alan Mackenzie
2022-07-07 17:25                                   ` Alan Mackenzie
2022-07-07 18:57                                     ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-07-08 21:03                                       ` Alan Mackenzie
2022-07-09  2:15                                         ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-07-07  7:55                             ` martin rudalics
2022-07-07  9:12                               ` Alan Mackenzie
2022-07-08  7:01                                 ` martin rudalics
2022-07-08 10:55                                   ` Alan Mackenzie
2022-07-08 11:55                                     ` Eli Zaretskii
2022-07-08 18:31                                     ` Alan Mackenzie
2022-07-09  8:36                                       ` martin rudalics
2022-07-08 21:45                                     ` Gregory Heytings
2022-07-09  8:35                                     ` martin rudalics
2022-07-09 10:57                                       ` Alan Mackenzie
2022-07-10  8:07                                         ` martin rudalics
2022-07-10 11:34                                           ` Alan Mackenzie
2022-07-10 11:47                                             ` Eli Zaretskii
2022-07-10 12:41                                               ` Alan Mackenzie
2022-07-10 13:01                                                 ` Eli Zaretskii
2022-07-10 16:13                                             ` Drew Adams
2022-07-10 16:55                                               ` Alan Mackenzie
2022-07-11  7:45                                             ` martin rudalics
2022-07-11 11:12                                               ` Eli Zaretskii
2022-07-12  7:33                                                 ` martin rudalics
2022-07-12 16:02                                                   ` Eli Zaretskii
2022-07-11 16:22                                               ` Alan Mackenzie
2022-07-11 16:43                                                 ` Eli Zaretskii
2022-07-11 17:15                                                   ` Alan Mackenzie
2022-07-11 17:33                                                     ` Eli Zaretskii
2022-07-11 17:34                                                     ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-07-11 20:09                                                       ` Alan Mackenzie
2022-07-11 17:06                                                 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-07-11 20:01                                                   ` Alan Mackenzie
2022-07-12  7:35                                                 ` martin rudalics
2022-07-12 14:56                                                   ` Drew Adams
2022-07-16  7:06                                                     ` martin rudalics
2022-07-16 20:34                                                   ` Alan Mackenzie
2022-07-18  7:36                                                     ` martin rudalics
2022-07-18 14:44                                                       ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-07-19  8:09                                                         ` martin rudalics
2022-07-19 16:04                                                           ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-07-16 23:39                                                   ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-07-17 11:29                                                     ` Alan Mackenzie
2022-07-17 14:03                                                       ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-07-17 15:06                                                         ` Alan Mackenzie
2022-07-18  7:37                                                     ` martin rudalics
2022-07-18 14:58                                                       ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-07-18 15:58                                                         ` Eli Zaretskii
2022-07-18 16:12                                                           ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-07-18 16:50                                                             ` Eli Zaretskii
2022-07-19 20:48                                                               ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-07-20 12:17                                                                 ` Eli Zaretskii
2022-07-20 14:54                                                                   ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-07-20 16:02                                                                     ` Eli Zaretskii
2022-07-21 15:07                                                                       ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-07-21 15:58                                                                         ` Eli Zaretskii
2022-07-19  8:09                                                         ` martin rudalics
2022-07-07 15:54                           ` Alan Mackenzie
2022-07-04 19:46             ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-07-04 19:59               ` Alan Mackenzie

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