GNU bug report logs - #51370
28.0.60; tab-bar-history-mode: avoid micro-steps

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

From: Carlos Pita <carlosjosepita2 <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 28.0.60; tab-bar-history-mode: avoid micro-steps
Date: Sun, 24 Oct 2021 06:13:48 -0300

Hi all,

whenever I resize a window using the mouse,
tab-bar-history-mode-back/forward will remember micro-steps that
slightly resize the window, making it rather inconvenient to navigate
the history. Moreover, the default history limit of 10 makes it quite
easy to lose all useful history in an instant.

winner-mode has a more sensible behavior in this regard: it just
remembers the beginning and the end of the mouse resizing operation
(but, sadly, it doesn't keep per-tab histories).

Could the behavior of tab-bar-history-mode be made more similar to that
of winner mode?

Best regards,
Carlos

---

In GNU Emacs 28.0.60 (build 1, x86_64-apple-darwin20.6.0, NS appkit-2022.60 Version 11.6 (Build 20G165))
 of 2021-10-23 built on Carloss-MacBook-Pro.local
Repository revision: d8d39ac9c6b670fe6931131c034cd64025041c7f
Repository branch: emacs-28
Windowing system distributor 'Apple', version 10.3.2022
System Description:  macOS 11.6

Configured using:
 'configure --with-native-compilation'

Configured features:
ACL DBUS GLIB GMP GNUTLS JPEG JSON LCMS2 LIBXML2 MODULES NATIVE_COMP
NOTIFY KQUEUE NS PDUMPER PNG RSVG THREADS TIFF TOOLKIT_SCROLL_BARS XIM
ZLIB

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

Major mode: Custom

Minor modes in effect:
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  shell-dirtrack-mode: t
  recentf-mode: t
  company-box-mode: t
  yas-global-mode: t
  yas-minor-mode: t
  ivy-mode: t
  global-company-mode: t
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  straight-use-package-mode: t
  straight-package-neutering-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  show-paren-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tab-bar-history-mode: t
  tab-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
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

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term/ns-win ns-win ucs-normalize mule-util term/common-win tool-bar dnd
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isearch easymenu timer select scroll-bar mouse jit-lock font-lock syntax
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utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean
japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european
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window text-properties overlay sha1 md5 base64 format env code-pages
mule custom widget hashtable-print-readable backquote threads dbusbind
kqueue cocoa ns lcms2 multi-tty make-network-process native-compile
emacs)

Memory information:
((conses 16 555082 38848)
 (symbols 48 36167 1)
 (strings 32 133436 8296)
 (string-bytes 1 4773682)
 (vectors 16 63589)
 (vector-slots 8 1244509 45118)
 (floats 8 1276 471)
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 (buffers 992 19))

Message #8 received at 51370 <at> debbugs.gnu.org (full text, mbox):

From: Carlos Pita <carlosjosepita2 <at> gmail.com>
To: 51370 <at> debbugs.gnu.org
Subject: Re: bug#51370: 28.0.60; tab-bar-history-mode: avoid micro-steps
Date: Sun, 24 Oct 2021 14:46:09 -0300

> winner-mode has a more sensible behavior in this regard: it just
> remembers the beginning and the end of the mouse resizing operation

I believe the difference is due to the fact that winner-mode listens to
changes in a window-configuration-change-hook but only saves them in a
post-command-hook, while tab-bar-history-mode saves changes in a
window-configuration-change-hook. I assume that dragging with the mouse
is sending a sequence of window configuration change events while still
being a single command.

Best regards,
Carlos

Message #11 received at 51370 <at> debbugs.gnu.org (full text, mbox):

From: Juri Linkov <juri <at> linkov.net>
To: Carlos Pita <carlosjosepita2 <at> gmail.com>
Cc: 51370 <at> debbugs.gnu.org
Subject: Re: bug#51370: 28.0.60; tab-bar-history-mode: avoid micro-steps
Date: Sun, 24 Oct 2021 22:01:32 +0300

>> winner-mode has a more sensible behavior in this regard: it just
>> remembers the beginning and the end of the mouse resizing operation
>
> I believe the difference is due to the fact that winner-mode listens to
> changes in a window-configuration-change-hook but only saves them in a
> post-command-hook, while tab-bar-history-mode saves changes in a
> window-configuration-change-hook. I assume that dragging with the mouse
> is sending a sequence of window configuration change events while still
> being a single command.

Maybe it's possible to compare this-command with last-command to remove
duplicate commands while resizing.  This needs more experimentation.

Message #14 received at 51370 <at> debbugs.gnu.org (full text, mbox):

From: Juri Linkov <juri <at> linkov.net>
To: Carlos Pita <carlosjosepita2 <at> gmail.com>
Cc: 51370 <at> debbugs.gnu.org
Subject: Re: bug#51370: 28.0.60; tab-bar-history-mode: avoid micro-steps
Date: Thu, 18 Nov 2021 19:28:17 +0200

close 51370 29.0.50
thanks

> whenever I resize a window using the mouse,
> tab-bar-history-mode-back/forward will remember micro-steps that
> slightly resize the window, making it rather inconvenient to navigate
> the history. Moreover, the default history limit of 10 makes it quite
> easy to lose all useful history in an instant.
>
> winner-mode has a more sensible behavior in this regard: it just
> remembers the beginning and the end of the mouse resizing operation
> (but, sadly, it doesn't keep per-tab histories).
>
> Could the behavior of tab-bar-history-mode be made more similar to that
> of winner mode?

Thanks for the request.  I tested winner-mode, and noticed many problems:
some intermediate micro-steps saved, etc.  So I implemented a different solution
for tab-bar-history-mode.  And pushed to master, because this is not a regression:
it worked this way in Emacs 27, but the fix might break some workflows in Emacs 28,
so we need more time to test the new solution in master.

Message #19 received at 51370 <at> debbugs.gnu.org (full text, mbox):

From: Carlos Pita <carlosjosepita2 <at> gmail.com>
To: Juri Linkov <juri <at> linkov.net>
Cc: 51370 <at> debbugs.gnu.org
Subject: Re: bug#51370: 28.0.60; tab-bar-history-mode: avoid micro-steps
Date: Thu, 18 Nov 2021 23:38:03 -0300

Hi Juri,

Thanks for this! I've been testing it and it works well. There is a
small issue in that it does nothing when the command is executed as
M-x tab-bar-history-back from a fido-mode minibuffer interaction. I
can invoke it from icomplete-mode or standard minibuffer completion,
or just eval it in a buffer, it's just with fido-mode that it breaks.

Best regards,
Carlos

Message #22 received at 51370 <at> debbugs.gnu.org (full text, mbox):

From: Juri Linkov <juri <at> linkov.net>
To: Carlos Pita <carlosjosepita2 <at> gmail.com>
Cc: 51370 <at> debbugs.gnu.org
Subject: Re: bug#51370: 28.0.60; tab-bar-history-mode: avoid micro-steps
Date: Fri, 19 Nov 2021 10:33:31 +0200

> Thanks for this! I've been testing it and it works well. There is a
> small issue in that it does nothing when the command is executed as
> M-x tab-bar-history-back from a fido-mode minibuffer interaction. I
> can invoke it from icomplete-mode or standard minibuffer completion,
> or just eval it in a buffer, it's just with fido-mode that it breaks.

The problem is that fido-mode resizes the minibuffer immediately
that calls window-configuration-change-hook.  The same problem
is reproducible in icomplete-mode after customizing
icomplete-show-matches-on-no-input to non-nil.
Thanks for the reproducible case, so it could be fixed.

Message #25 received at 51370 <at> debbugs.gnu.org (full text, mbox):

From: Juri Linkov <juri <at> linkov.net>
To: Carlos Pita <carlosjosepita2 <at> gmail.com>
Cc: 51370 <at> debbugs.gnu.org
Subject: Re: bug#51370: 28.0.60; tab-bar-history-mode: avoid micro-steps
Date: Mon, 22 Nov 2021 19:58:43 +0200

>> Thanks for this! I've been testing it and it works well. There is a
>> small issue in that it does nothing when the command is executed as
>> M-x tab-bar-history-back from a fido-mode minibuffer interaction. I
>> can invoke it from icomplete-mode or standard minibuffer completion,
>> or just eval it in a buffer, it's just with fido-mode that it breaks.
>
> The problem is that fido-mode resizes the minibuffer immediately
> that calls window-configuration-change-hook.  The same problem
> is reproducible in icomplete-mode after customizing
> icomplete-show-matches-on-no-input to non-nil.
> Thanks for the reproducible case, so it could be fixed.

This is fixed now on master, after simplifying by removing
unnecessary code, and now it works in all cases.

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