GNU bug report logs - #5177
23.1.90; scrollbar thumb stops working after being dragged

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Message #5 received at submit <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Ken Brown <kbrown <at> cornell.edu>
To: emacs-pretest-bug <at> gnu.org
Subject: 23.1.90; scrollbar thumb stops working after being dragged
Date: Thu, 10 Dec 2009 13:22:55 -0500

Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your bug report will be posted to the emacs-pretest-bug <at> gnu.org mailing 
list.

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug.  If you can, give
a recipe starting from `emacs -Q':

1. Start the Gtk+ build of emacs.
2. Visit a file too big to fit in the window.
3. Drag the (vertical) scrollbar thumb.
4. Scroll through the buffer using the mouse wheel or keystrokes.

The scrollbar thumb stays fixed and no longer shows the relative
position in the buffer.  Clicking in an empty area of the scrollbar
restores the correct behavior.

If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
For information about debugging Emacs, please read the file
/usr/share/emacs/23.1.90/etc/DEBUG.


In GNU Emacs 23.1.90.1 (i686-pc-cygwin, GTK+ Version 2.18.3)
 of 2009-12-10 on markov
Windowing system distributor `The Cygwin/X Project', version 11.0.10701000
configured using `configure 
'--srcdir=/usr/src/emacs-23.1.90-1/src/emacs-23.1.90' '--prefix=/usr' 
'--exec-prefix=/usr' '--bindir=/usr/bin' '--sbindir=/usr/sbin' 
'--libexecdir=/usr/lib' '--datadir=/usr/share' '--localstatedir=/var' 
'--sysconfdir=/etc' '--datarootdir=/usr/share' 
'--docdir=/usr/share/doc/emacs' 'CC=gcc' 'CFLAGS=-O2 -pipe ' 'LDFLAGS=' 
'LIBS=' 'CPPFLAGS=''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  tooltip-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
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
<help-echo> <help-echo> M-x r e p o r t - e m <tab>
<return>

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.

Load-path shadows:
None found.

Features:
(shadow mail-extr message ecomplete rfc822 mml easymenu mml-sec
password-cache mm-decode mm-bodies mm-encode mailcap mail-parse rfc2231
rfc2047 rfc2045 qp ietf-drums mailabbrev nnheader gnus-util netrc
time-date mm-util mail-prsvr gmm-utils wid-edit mailheader canlock sha1
hex-util hashcash mail-utils warnings emacsbug sendmail regexp-opt
tooltip ediff-hook vc-hooks lisp-float-type mwheel x-win x-dnd
font-setting tool-bar dnd fontset image fringe lisp-mode register page
menu-bar rfn-eshadow timer select scroll-bar mldrag 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 loaddefs button
minibuffer faces cus-face text-properties overlay md5 base64 format env
code-pages mule custom widget hashtable-print-readable backquote
make-network-process font-render-setting gtk x-toolkit x multi-tty
emacs)

Message #10 received at submit <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Jan Djärv <jan.h.d <at> swipnet.se>
To: Ken Brown <kbrown <at> cornell.edu>, 5177 <at> debbugs.gnu.org
Cc: emacs-pretest-bug <at> gnu.org
Subject: Re: bug#5177: 23.1.90; scrollbar thumb stops working after being
 dragged
Date: Thu, 10 Dec 2009 20:31:26 +0100

Ken Brown skrev:
> Please write in English if possible, because the Emacs maintainers
> usually do not have translators to read other languages for them.
> 
> Your bug report will be posted to the emacs-pretest-bug <at> gnu.org mailing 
> list.
> 
> Please describe exactly what actions triggered the bug
> and the precise symptoms of the bug.  If you can, give
> a recipe starting from `emacs -Q':
> 
> 1. Start the Gtk+ build of emacs.
> 2. Visit a file too big to fit in the window.
> 3. Drag the (vertical) scrollbar thumb.
> 4. Scroll through the buffer using the mouse wheel or keystrokes.
> 
> The scrollbar thumb stays fixed and no longer shows the relative
> position in the buffer.  Clicking in an empty area of the scrollbar
> restores the correct behavior.

This does not happen for me.  Must be Cygwin-specific.

	Jan D.

Message #20 received at submit <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Ken Brown <kbrown <at> cornell.edu>
To: Jan Djärv <jan.h.d <at> swipnet.se>
Cc: 5177 <at> debbugs.gnu.org, emacs-pretest-bug <at> gnu.org,
        Angelo Graziosi <angelo.graziosi <at> alice.it>
Subject: Re: bug#5177: 23.1.90; scrollbar thumb stops working after being
 dragged
Date: Thu, 10 Dec 2009 14:43:15 -0500

On 12/10/2009 2:31 PM, Jan Djärv wrote:
> Ken Brown skrev:
>> Please write in English if possible, because the Emacs maintainers
>> usually do not have translators to read other languages for them.
>>
>> Your bug report will be posted to the emacs-pretest-bug <at> gnu.org 
>> mailing list.
>>
>> Please describe exactly what actions triggered the bug
>> and the precise symptoms of the bug.  If you can, give
>> a recipe starting from `emacs -Q':
>>
>> 1. Start the Gtk+ build of emacs.
>> 2. Visit a file too big to fit in the window.
>> 3. Drag the (vertical) scrollbar thumb.
>> 4. Scroll through the buffer using the mouse wheel or keystrokes.
>>
>> The scrollbar thumb stays fixed and no longer shows the relative
>> position in the buffer.  Clicking in an empty area of the scrollbar
>> restores the correct behavior.
> 
> This does not happen for me.  Must be Cygwin-specific.

Angelo Graziosi told me he has observed similar behavior in Kubuntu. 
Could it be related to the Gtk+ version?  My Cygwin build uses version 
2.18.3.

Ken

Message #30 received at submit <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Angelo Graziosi <angelo.graziosi <at> alice.it>
To: Ken Brown <kbrown <at> cornell.edu>
Cc: Jan Djärv <jan.h.d <at> swipnet.se>,
        5177 <at> debbugs.gnu.org, emacs-pretest-bug <at> gnu.org
Subject: Re: bug#5177: 23.1.90; scrollbar thumb stops working after being
 dragged
Date: Fri, 11 Dec 2009 00:11:05 +0100

Il 10/12/2009 20.43, Ken Brown ha scritto:
> On 12/10/2009 2:31 PM, Jan Djärv wrote:
>> Ken Brown skrev:
>>> Please write in English if possible, because the Emacs maintainers
>>> usually do not have translators to read other languages for them.
>>>
>>> Your bug report will be posted to the emacs-pretest-bug <at> gnu.org
>>> mailing list.
>>>
>>> Please describe exactly what actions triggered the bug
>>> and the precise symptoms of the bug. If you can, give
>>> a recipe starting from `emacs -Q':
>>>
>>> 1. Start the Gtk+ build of emacs.
>>> 2. Visit a file too big to fit in the window.
>>> 3. Drag the (vertical) scrollbar thumb.
>>> 4. Scroll through the buffer using the mouse wheel or keystrokes.
>>>
>>> The scrollbar thumb stays fixed and no longer shows the relative
>>> position in the buffer. Clicking in an empty area of the scrollbar
>>> restores the correct behavior.
>>
>> This does not happen for me. Must be Cygwin-specific.
>
> Angelo Graziosi told me he has observed similar behavior in Kubuntu.
> Could it be related to the Gtk+ version? My Cygwin build uses version
> 2.18.3.

I can reproduce the bad behavior on Kubuntu 8.04 and 9.10 on which I 
have the builds I did on 20091207.

Ciao,
Angelo.

Message #40 received at submit <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Ken Brown <kbrown <at> cornell.edu>
To: Angelo Graziosi <angelo.graziosi <at> alice.it>
Cc: Jan Djärv <jan.h.d <at> swipnet.se>,
        5177 <at> debbugs.gnu.org, emacs-pretest-bug <at> gnu.org
Subject: Re: bug#5177: 23.1.90; scrollbar thumb stops working after being
 dragged
Date: Fri, 11 Dec 2009 10:50:02 -0500

On 12/10/2009 6:11 PM, Angelo Graziosi wrote:
> Il 10/12/2009 20.43, Ken Brown ha scritto:
>> On 12/10/2009 2:31 PM, Jan Djärv wrote:
>>> Ken Brown skrev:
>>>> Please write in English if possible, because the Emacs maintainers
>>>> usually do not have translators to read other languages for them.
>>>>
>>>> Your bug report will be posted to the emacs-pretest-bug <at> gnu.org
>>>> mailing list.
>>>>
>>>> Please describe exactly what actions triggered the bug
>>>> and the precise symptoms of the bug. If you can, give
>>>> a recipe starting from `emacs -Q':
>>>>
>>>> 1. Start the Gtk+ build of emacs.
>>>> 2. Visit a file too big to fit in the window.
>>>> 3. Drag the (vertical) scrollbar thumb.
>>>> 4. Scroll through the buffer using the mouse wheel or keystrokes.
>>>>
>>>> The scrollbar thumb stays fixed and no longer shows the relative
>>>> position in the buffer. Clicking in an empty area of the scrollbar
>>>> restores the correct behavior.
>>>
>>> This does not happen for me. Must be Cygwin-specific.
>>
>> Angelo Graziosi told me he has observed similar behavior in Kubuntu.
>> Could it be related to the Gtk+ version? My Cygwin build uses version
>> 2.18.3.
> 
> I can reproduce the bad behavior on Kubuntu 8.04 and 9.10 on which I 
> have the builds I did on 20091207.

It would be helpful if a few people who have built emacs on other 
systems could see if they can reproduce this bug.  And if you could 
report which version of Gtk+ you have, that might help narrow the 
problem down.

Thanks.

Ken

Message #50 received at submit <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Andreas Schwab <schwab <at> linux-m68k.org>
To: Ken Brown <kbrown <at> cornell.edu>
Cc: 5177 <at> debbugs.gnu.org,
        Angelo Graziosi <angelo.graziosi <at> alice.it>, emacs-pretest-bug <at> gnu.org
Subject: Re: bug#5177: 23.1.90; scrollbar thumb stops working after being dragged
Date: Fri, 11 Dec 2009 17:15:01 +0100

Ken Brown <kbrown <at> cornell.edu> writes:

> It would be helpful if a few people who have built emacs on other systems
> could see if they can reproduce this bug.  And if you could report which
> version of Gtk+ you have, that might help narrow the problem down.

I can reproduce that on openSUSE 11.1 (with GTK+ 2.14.4 and QtCurve
theme).

Andreas.

-- 
Andreas Schwab, schwab <at> linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."

Message #60 received at submit <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Angelo Graziosi <angelo.graziosi <at> alice.it>
To: Ken Brown <kbrown <at> cornell.edu>
Cc: Jan Djärv <jan.h.d <at> swipnet.se>,
        5177 <at> debbugs.gnu.org, emacs-pretest-bug <at> gnu.org
Subject: Re: bug#5177: 23.1.90; scrollbar thumb stops working after being
 dragged
Date: Fri, 11 Dec 2009 17:31:40 +0100

Ken Brown ha scritto:
>
> It would be helpful if a few people who have built emacs on other
> systems could see if they can reproduce this bug. And if you could
> report which version of Gtk+ you have, that might help narrow the
> problem down.

On Kubuntu-8.04 GTK+ is 2.12.9 and on Kubuntu-9.10 it is 2.18.3 (as on 
Cygwin). If it is a GTK+ problem, why other GTK+ applications do not 
show that behavior?

...and, it look to me that 23.1 (and the build I did with 
CVS-2009.11.14) work better. But perhaps I am wrong (a sort of illusion :-()

Ciao,
Angelo.

Message #70 received at submit <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Jan Djärv <jan.h.d <at> swipnet.se>
To: Angelo Graziosi <angelo.graziosi <at> alice.it>
Cc: Ken Brown <kbrown <at> cornell.edu>, 5177 <at> debbugs.gnu.org,
        emacs-pretest-bug <at> gnu.org, 5177-done <at> debbugs.gnu.org
Subject: Re: bug#5177: 23.1.90; scrollbar thumb stops working after being
 dragged
Date: Sat, 12 Dec 2009 13:29:12 +0100

Angelo Graziosi skrev:
> Ken Brown ha scritto:
>>
>> It would be helpful if a few people who have built emacs on other
>> systems could see if they can reproduce this bug. And if you could
>> report which version of Gtk+ you have, that might help narrow the
>> problem down.
> 
> On Kubuntu-8.04 GTK+ is 2.12.9 and on Kubuntu-9.10 it is 2.18.3 (as on 
> Cygwin). If it is a GTK+ problem, why other GTK+ applications do not 
> show that behavior?
> 
> ...and, it look to me that 23.1 (and the build I did with 
> CVS-2009.11.14) work better. But perhaps I am wrong (a sort of illusion 
> :-()
> 

Found the problem.

	Jan D.

Message #85 received at 5177 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Ken Brown <kbrown <at> cornell.edu>
To: Jan Djärv <jan.h.d <at> swipnet.se>
Cc: Angelo Graziosi <angelo.graziosi <at> alice.it>,
        5177 <at> debbugs.gnu.org, 5177-done <at> debbugs.gnu.org
Subject: Re: bug#5177: 23.1.90; scrollbar thumb stops working after being
 dragged
Date: Sat, 12 Dec 2009 11:09:28 -0500

On 12/12/2009 7:29 AM, Jan Djärv wrote:
> Angelo Graziosi skrev:
>> Ken Brown ha scritto:
>>>
>>> It would be helpful if a few people who have built emacs on other
>>> systems could see if they can reproduce this bug. And if you could
>>> report which version of Gtk+ you have, that might help narrow the
>>> problem down.
>>
>> On Kubuntu-8.04 GTK+ is 2.12.9 and on Kubuntu-9.10 it is 2.18.3 (as on 
>> Cygwin). If it is a GTK+ problem, why other GTK+ applications do not 
>> show that behavior?
>>
>> ...and, it look to me that 23.1 (and the build I did with 
>> CVS-2009.11.14) work better. But perhaps I am wrong (a sort of 
>> illusion :-()
>>
> 
> Found the problem.

That fixed it.  Thanks.

Ken

Message #91 received at 5177 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Angelo Graziosi <angelo.graziosi <at> alice.it>
To: Ken Brown <kbrown <at> cornell.edu>
Cc: Jan Djärv <jan.h.d <at> swipnet.se>,
        5177 <at> debbugs.gnu.org, 5177-done <at> debbugs.gnu.org
Subject: Re: bug#5177: 23.1.90; scrollbar thumb stops working after being
 dragged
Date: Sat, 12 Dec 2009 17:41:47 +0100

Il 12/12/2009 17.09, Ken Brown ha scritto:
> On 12/12/2009 7:29 AM, Jan Djärv wrote:
>> Angelo Graziosi skrev:
>>> Ken Brown ha scritto:
>>>>
>>>> It would be helpful if a few people who have built emacs on other
>>>> systems could see if they can reproduce this bug. And if you could
>>>> report which version of Gtk+ you have, that might help narrow the
>>>> problem down.
>>>
>>> On Kubuntu-8.04 GTK+ is 2.12.9 and on Kubuntu-9.10 it is 2.18.3 (as
>>> on Cygwin). If it is a GTK+ problem, why other GTK+ applications do
>>> not show that behavior?
>>>
>>> ...and, it look to me that 23.1 (and the build I did with
>>> CVS-2009.11.14) work better. But perhaps I am wrong (a sort of
>>> illusion :-()
>>>
>>
>> Found the problem.
>
> That fixed it. Thanks.

I still see an unexpected behavior: if I move the mouse pointer on the 
scrollbar thumb and click with mouse-1 (only a simple click, tic-tac), 
the thumb stops to follow the scrolling of the buffer I do with mouse 
wheel; if I re-click in the same manner, it works again. For the 
remainder, all works as expected.

Ciao,
Angelo.

Message #96 received at 5177 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Ken Brown <kbrown <at> cornell.edu>
To: Angelo Graziosi <angelo.graziosi <at> alice.it>
Cc: Jan Djärv <jan.h.d <at> swipnet.se>,
        5177 <at> debbugs.gnu.org, 5177-done <at> debbugs.gnu.org
Subject: Re: bug#5177: 23.1.90; scrollbar thumb stops working after being
 dragged
Date: Sat, 12 Dec 2009 11:54:44 -0500

On 12/12/2009 11:41 AM, Angelo Graziosi wrote:
> Il 12/12/2009 17.09, Ken Brown ha scritto:
>> On 12/12/2009 7:29 AM, Jan Djärv wrote:
>>> Angelo Graziosi skrev:
>>>> Ken Brown ha scritto:
>>>>>
>>>>> It would be helpful if a few people who have built emacs on other
>>>>> systems could see if they can reproduce this bug. And if you could
>>>>> report which version of Gtk+ you have, that might help narrow the
>>>>> problem down.
>>>>
>>>> On Kubuntu-8.04 GTK+ is 2.12.9 and on Kubuntu-9.10 it is 2.18.3 (as
>>>> on Cygwin). If it is a GTK+ problem, why other GTK+ applications do
>>>> not show that behavior?
>>>>
>>>> ...and, it look to me that 23.1 (and the build I did with
>>>> CVS-2009.11.14) work better. But perhaps I am wrong (a sort of
>>>> illusion :-()
>>>>
>>>
>>> Found the problem.
>>
>> That fixed it. Thanks.
> 
> I still see an unexpected behavior: if I move the mouse pointer on the 
> scrollbar thumb and click with mouse-1 (only a simple click, tic-tac), 
> the thumb stops to follow the scrolling of the buffer I do with mouse 
> wheel; if I re-click in the same manner, it works again. For the 
> remainder, all works as expected.

Yes, I can confirm that.  (I have to admit I would never have thought to 
just click on the thumb without dragging it!)

Ken

Message #103 received at 5177 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Jan Djärv <jan.h.d <at> swipnet.se>
To: Ken Brown <kbrown <at> cornell.edu>
Cc: Angelo Graziosi <angelo.graziosi <at> alice.it>,
        5177 <at> debbugs.gnu.org, 5177-done <at> debbugs.gnu.org
Subject: Re: bug#5177: 23.1.90; scrollbar thumb stops working after being
 dragged
Date: Sat, 12 Dec 2009 20:51:35 +0100

Ken Brown skrev:
> On 12/12/2009 11:41 AM, Angelo Graziosi wrote:
>> Il 12/12/2009 17.09, Ken Brown ha scritto:
>>> On 12/12/2009 7:29 AM, Jan Djärv wrote:
>>>> Angelo Graziosi skrev:
>>>>> Ken Brown ha scritto:
>>>>>>
>>>>>> It would be helpful if a few people who have built emacs on other
>>>>>> systems could see if they can reproduce this bug. And if you could
>>>>>> report which version of Gtk+ you have, that might help narrow the
>>>>>> problem down.
>>>>>
>>>>> On Kubuntu-8.04 GTK+ is 2.12.9 and on Kubuntu-9.10 it is 2.18.3 (as
>>>>> on Cygwin). If it is a GTK+ problem, why other GTK+ applications do
>>>>> not show that behavior?
>>>>>
>>>>> ...and, it look to me that 23.1 (and the build I did with
>>>>> CVS-2009.11.14) work better. But perhaps I am wrong (a sort of
>>>>> illusion :-()
>>>>>
>>>>
>>>> Found the problem.
>>>
>>> That fixed it. Thanks.
>>
>> I still see an unexpected behavior: if I move the mouse pointer on the 
>> scrollbar thumb and click with mouse-1 (only a simple click, tic-tac), 
>> the thumb stops to follow the scrolling of the buffer I do with mouse 
>> wheel; if I re-click in the same manner, it works again. For the 
>> remainder, all works as expected.
> 
> Yes, I can confirm that.  (I have to admit I would never have thought to 
> just click on the thumb without dragging it!)

Ah, it is a race condition.  I'll have to get back to you on this.

	Jan D.

Message #109 received at 5177 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Jan Djärv <jan.h.d <at> swipnet.se>
To: Angelo Graziosi <angelo.graziosi <at> alice.it>
Cc: Ken Brown <kbrown <at> cornell.edu>, 5177 <at> debbugs.gnu.org,
        5177-done <at> debbugs.gnu.org
Subject: Re: bug#5177: 23.1.90; scrollbar thumb stops working after being
 dragged
Date: Sun, 13 Dec 2009 14:32:32 +0100

Angelo Graziosi skrev:
> Il 12/12/2009 17.09, Ken Brown ha scritto:
>> On 12/12/2009 7:29 AM, Jan Djärv wrote:
>>> Angelo Graziosi skrev:
>>>> Ken Brown ha scritto:
>>>>>
>>>>> It would be helpful if a few people who have built emacs on other
>>>>> systems could see if they can reproduce this bug. And if you could
>>>>> report which version of Gtk+ you have, that might help narrow the
>>>>> problem down.
>>>>
>>>> On Kubuntu-8.04 GTK+ is 2.12.9 and on Kubuntu-9.10 it is 2.18.3 (as
>>>> on Cygwin). If it is a GTK+ problem, why other GTK+ applications do
>>>> not show that behavior?
>>>>
>>>> ...and, it look to me that 23.1 (and the build I did with
>>>> CVS-2009.11.14) work better. But perhaps I am wrong (a sort of
>>>> illusion :-()
>>>>
>>>
>>> Found the problem.
>>
>> That fixed it. Thanks.
> 
> I still see an unexpected behavior: if I move the mouse pointer on the 
> scrollbar thumb and click with mouse-1 (only a simple click, tic-tac), 
> the thumb stops to follow the scrolling of the buffer I do with mouse 
> wheel; if I re-click in the same manner, it works again. For the 
> remainder, all works as expected.

I have checked in a fix.  Please test it.

	Jan D.

Message #115 received at 5177 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Ken Brown <kbrown <at> cornell.edu>
To: Jan Djärv <jan.h.d <at> swipnet.se>
Cc: Angelo Graziosi <angelo.graziosi <at> alice.it>,
        5177 <at> debbugs.gnu.org, 5177-done <at> debbugs.gnu.org
Subject: Re: bug#5177: 23.1.90; scrollbar thumb stops working after being
 dragged
Date: Sun, 13 Dec 2009 09:02:04 -0500

On 12/13/2009 8:32 AM, Jan Djärv wrote:
> Angelo Graziosi skrev:
>> Il 12/12/2009 17.09, Ken Brown ha scritto:
>>> On 12/12/2009 7:29 AM, Jan Djärv wrote:
>>>> Angelo Graziosi skrev:
>>>>> Ken Brown ha scritto:
>>>>>>
>>>>>> It would be helpful if a few people who have built emacs on other
>>>>>> systems could see if they can reproduce this bug. And if you could
>>>>>> report which version of Gtk+ you have, that might help narrow the
>>>>>> problem down.
>>>>>
>>>>> On Kubuntu-8.04 GTK+ is 2.12.9 and on Kubuntu-9.10 it is 2.18.3 (as
>>>>> on Cygwin). If it is a GTK+ problem, why other GTK+ applications do
>>>>> not show that behavior?
>>>>>
>>>>> ...and, it look to me that 23.1 (and the build I did with
>>>>> CVS-2009.11.14) work better. But perhaps I am wrong (a sort of
>>>>> illusion :-()
>>>>>
>>>>
>>>> Found the problem.
>>>
>>> That fixed it. Thanks.
>>
>> I still see an unexpected behavior: if I move the mouse pointer on the 
>> scrollbar thumb and click with mouse-1 (only a simple click, tic-tac), 
>> the thumb stops to follow the scrolling of the buffer I do with mouse 
>> wheel; if I re-click in the same manner, it works again. For the 
>> remainder, all works as expected.
> 
> I have checked in a fix.  Please test it.

Works for me in Cygwin.  Thanks, Jan.

Ken

Message #121 received at 5177 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Angelo Graziosi <angelo.graziosi <at> alice.it>
To: Ken Brown <kbrown <at> cornell.edu>
Cc: Jan Djärv <jan.h.d <at> swipnet.se>,
        5177 <at> debbugs.gnu.org, 5177-done <at> debbugs.gnu.org
Subject: Re: bug#5177: 23.1.90; scrollbar thumb stops working after being
 dragged
Date: Sun, 13 Dec 2009 15:19:19 +0100

Il 13/12/2009 15.02, Ken Brown ha scritto:
> On 12/13/2009 8:32 AM, Jan Djärv wrote:
>>
>> I have checked in a fix. Please test it.
>
> Works for me in Cygwin. Thanks, Jan.

Confirmed!

Many thanks,
Angelo.

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