GNU bug report logs - #19003
24.4; Mouse-click in different frame displaying same buffer breaks region

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

From: Christian Tanzer <tanzer <at> swing.co.at>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.4;
 Mouse-click in different frame displaying same buffer breaks region
Date: Sun, 09 Nov 2014 11:26:50 +0100

Starting point
===============

A buffer is displayed in two frames, a region was
selected with the mouse in one of the frames.

The problem
=============

If one clicks (mouse-1) into the other frame, the region is silently
extended to that point — although it isn't highlighted anymore.
A subsequent mouse-yank-primary inserts the broken region.

I originally noticed this problem when I used mouse-yank-primary to
yank a region into a different frame (without fist using mouse-1 to
select that frame).

For mouse-yank-primary, it can be solved by moving 

    (or mouse-yank-at-point (mouse-set-point click))

into the `let' for `primary'. I have no idea how to solve it for
mouse-1 events. 

Emacs versions effected
=========================

I originally noticed the problem in Emacs 24.1.
It's still there in 24.4.

The problem occurs, when starting from `emacs -Q'.




In GNU Emacs 24.4.1 (x86_64-pc-linux-gnu, GTK+ Version 2.24.24)
 of 2014-10-22 on tr
Windowing system distributor `The X.Org Foundation', version 11.0.11500000
Configured using:
 `configure --prefix=/usr --build=x86_64-pc-linux-gnu
 --host=x86_64-pc-linux-gnu --mandir=/usr/share/man
 --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc
 --localstatedir=/var/lib --libdir=/usr/lib64 --disable-silent-rules
 --disable-dependency-tracking --program-suffix=-emacs-24
 --infodir=/usr/share/info/emacs-24 --localstatedir=/var
 --enable-locallisppath=/etc/emacs:/usr/share/emacs/site-lisp
 --with-gameuser=games --without-compress-install
 --with-file-notification=inotify --disable-acl --with-dbus
 --with-gnutls --with-gpm --without-hesiod --without-kerberos
 --without-kerberos5 --without-xml2 --without-selinux --without-wide-int
 --with-zlib --with-sound=alsa --with-x --without-ns --without-gconf
 --without-gsettings --with-toolkit-scroll-bars --with-gif --with-jpeg
 --without-png --with-rsvg --with-tiff --with-xpm --with-imagemagick
 --with-xft --without-libotf --without-m17n-flt --with-x-toolkit=gtk2
 GENTOO_PACKAGE=app-editors/emacs-24.4 'CFLAGS=-march=core2 -O2 -pipe'
 CPPFLAGS= 'LDFLAGS=-Wl,-O1 -Wl,--as-needed''

Important settings:
  value of $LANG: en_US.utf8
  locale-coding-system: utf-8-unix

Major mode: Emacs-Lisp

Minor modes in effect:
  tooltip-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
<triple-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <down-mouse-5> <mouse-5> <double-down-mouse-5> 
<double-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <down-mouse-4> 
<mouse-4> <double-down-mouse-4> <double-mouse-4> <triple-down-mouse-4> 
<triple-mouse-4> <triple-down-mouse-4> <triple-mouse-4> 
<triple-down-mouse-4> <triple-mouse-4> <triple-down-mouse-4> 
<triple-mouse-4> <down-mouse-5> <mouse-5> <double-down-mouse-5> 
<double-mouse-5> <down-mouse-5> <mouse-5> <double-down-mouse-5> 
<double-mouse-5> <down-mouse-5> <mouse-5> <double-down-mouse-5> 
<double-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <down-mouse-5> 
<mouse-5> <double-down-mouse-5> <double-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<down-mouse-5> <mouse-5> <double-down-mouse-5> <double-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <down-mouse-5> 
<mouse-5> <double-down-mouse-5> <double-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<down-mouse-5> <mouse-5> <double-down-mouse-5> <double-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<down-mouse-5> <mouse-5> <double-down-mouse-5> <double-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <down-mouse-5> <mouse-5> <double-down-mouse-5> 
<double-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<down-mouse-5> <mouse-5> <double-down-mouse-5> <double-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <down-mouse-5> <mouse-5> <double-down-mouse-5> 
<double-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <down-mouse-5> 
<mouse-5> <double-down-mouse-5> <double-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <down-mouse-5> <mouse-5> <double-down-mouse-5> 
<double-mouse-5> <down-mouse-5> <mouse-5> <double-down-mouse-5> 
<double-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<down-mouse-4> <mouse-4> <down-mouse-5> <mouse-5> <double-down-mouse-5> 
<double-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <down-mouse-5> 
<mouse-5> <double-down-mouse-5> <double-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <down-mouse-5> <mouse-5> <double-down-mouse-5> 
<double-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<down-mouse-5> <mouse-5> <double-down-mouse-5> <double-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <down-mouse-5> <mouse-5> <double-down-mouse-5> 
<double-mouse-5> <help-echo> <switch-frame> <down-mouse-1> 
<mouse-movement> <mouse-1> <down-mouse-5> <mouse-5> 
<double-down-mouse-5> <double-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<triple-down-mouse-5> <triple-mouse-5> <triple-down-mouse-5> 
<triple-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> 
<mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> 
<mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> 
<mouse-1> <mouse-1> <mouse-1> <mouse-1> <mouse-1> <switch-frame> 
<down-mouse-1> <mouse-movement> <mouse-1> <double-down-mouse-1> 
<double-mouse-1> <help-echo> <help-echo> <switch-frame> 
<down-mouse-1> <mouse-movement> <mouse-1> <down-mouse-2> 
<mouse-2> r e p o r t - C-_ M-x r e p o r t <tab> 
<return>

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
(No files need saving)
C-x <mouse-5> is undefined
byte-code: Beginning of buffer
Mark set
Undo!

Load-path shadows:
None found.

Features:
(shadow sort gnus-util mail-extr emacsbug message format-spec rfc822 mml
easymenu mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231
mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums
mm-util help-fns mail-prsvr mail-utils time-date tooltip electric
uniquify ediff-hook vc-hooks lisp-float-type mwheel x-win x-dnd tool-bar
dnd fontset image regexp-opt fringe tabulated-list newcomment lisp-mode
prog-mode register page menu-bar rfn-eshadow timer select scroll-bar
mouse jit-lock font-lock syntax facemenu font-core frame cham georgian
utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean
japanese hebrew greek romanian slovak czech european ethiopic indian
cyrillic chinese case-table epa-hook jka-cmpr-hook help simple abbrev
minibuffer nadvice loaddefs button faces cus-face macroexp files
text-properties overlay sha1 md5 base64 format env code-pages mule
custom widget hashtable-print-readable backquote make-network-process
dbusbind inotify dynamic-setting font-render-setting move-toolbar gtk
x-toolkit x multi-tty emacs)

Memory information:
((conses 16 90242 9111)
 (symbols 48 17584 0)
 (miscs 40 62 139)
 (strings 32 9232 4284)
 (string-bytes 1 253117)
 (vectors 16 9031)
 (vector-slots 8 394987 16042)
 (floats 8 67 531)
 (intervals 56 4353 0)
 (buffers 960 13)
 (heap 1024 13846 595))

-- 
Christian Tanzer                                    http://www.c-tanzer.at/

Message #8 received at 19003 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Christian Tanzer <tanzer <at> swing.co.at>
Cc: 19003 <at> debbugs.gnu.org
Subject: Re: bug#19003: 24.4;
 Mouse-click in different frame displaying same buffer breaks region
Date: Mon, 10 Nov 2014 17:55:03 -0500

> A buffer is displayed in two frames, a region was
> selected with the mouse in one of the frames.

> The problem
> =============

> If one clicks (mouse-1) into the other frame, the region is silently
> extended to that point — although it isn't highlighted anymore.

Actually, the region is extended as soon as you select the other frame
(if you have a window-manager that lets focus follow the mouse, then
you see it immediately).

So the problem is that this "switch-frame" should probably deactivate
the mark (if the region was set via shifted-movement).


        Stefan

Message #11 received at 19003 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Christian Tanzer <tanzer <at> swing.co.at>
Cc: 19003 <at> debbugs.gnu.org
Subject: Re: bug#19003: 24.4;
 Mouse-click in different frame displaying same buffer breaks region
Date: Mon, 10 Nov 2014 20:39:50 -0500

Would the patch below solve it for you?


        Stefan


=== modified file 'src/frame.c'
--- src/frame.c	2014-11-10 20:05:40 +0000
+++ src/frame.c	2014-11-10 22:55:38 +0000
@@ -1198,7 +1198,7 @@
   return do_switch_frame (frame, 1, 0, norecord);
 }
 
-DEFUN ("handle-switch-frame", Fhandle_switch_frame, Shandle_switch_frame, 1, 1, "e",
+DEFUN ("handle-switch-frame", Fhandle_switch_frame, Shandle_switch_frame, 1, 1, "^e",
        doc: /* Handle a switch-frame event EVENT.
 Switch-frame events are usually bound to this function.
 A switch-frame event tells Emacs that the window manager has requested

=== modified file 'lisp/window.el'
--- lisp/window.el	2014-10-15 18:32:27 +0000
+++ lisp/window.el	2014-11-10 22:56:00 +0000
@@ -7904,7 +7904,7 @@
 
 (defun handle-select-window (event)
   "Handle select-window events."
-  (interactive "e")
+  (interactive "^e")
   (let ((window (posn-window (event-start event))))
     (unless (or (not (window-live-p window))
 		;; Don't switch if we're currently in the minibuffer.

Message #14 received at 19003 <at> debbugs.gnu.org (full text, mbox):

From: Christian Tanzer <tanzer <at> swing.co.at>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: 19003 <at> debbugs.gnu.org
Subject: Re: bug#19003: 24.4;
 Mouse-click in different frame displaying same buffer breaks region
Date: Fri, 14 Nov 2014 11:28:22 -0000

Stefan Monnier wrote at Mon, 10 Nov 2014 20:39:50 -0500:

> Would the patch below solve it for you?

Yes, the patch in http://debbugs.gnu.org/cgi/bugreport.cgi?bug=19003#11
fixes the problem [tested against git branch emacs-24,
commit 6688117e7924].

With that patch in place, mouse-1 and mouse-2 work fine!

Thanks,

Christian

--
Christian Tanzer                                    http://www.c-tanzer.at/

Message #19 received at 19003-done <at> debbugs.gnu.org (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Christian Tanzer <tanzer <at> swing.co.at>
Cc: 19003-done <at> debbugs.gnu.org
Subject: Re: bug#19003: 24.4;
 Mouse-click in different frame displaying same buffer breaks region
Date: Sun, 16 Nov 2014 00:30:50 -0500

Version:24.5

>> Would the patch below solve it for you?
> Yes, the patch in http://debbugs.gnu.org/cgi/bugreport.cgi?bug=19003#11
> fixes the problem [tested against git branch emacs-24,
> commit 6688117e7924].

Thanks, installed,


        Stefan

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