bug#56306: 29.0.50; 'temp-buffer-resize-mode' does not account for back button

bug#56306: 29.0.50; 'temp-buffer-resize-mode' does not account for back button

[martin rudalics]

With emacs -Q do

M-x temp-buffer-resize-mode
C-h f setq RET
C-h f set RET

The *Help* window does not show the back button.

Note the comment in 'temp-buffer-resize-mode' which warns about this as

       ;; `help-make-xrefs' may add a `back' button and thus increase the
       ;; text size, so `resize-temp-buffer-window' must be run *after* it.


In GNU Emacs 29.0.50 (build 10, x86_64-pc-linux-gnu, GTK+ Version 3.24.5, cairo version 1.16.0)
  of 2022-06-29 built on restno
Repository revision: 60af986f38e98fde3e17005e49d175c061a1a29a
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12004000
System Description: Debian GNU/Linux 10 (buster)

Configured using:
  'configure --with-gif=ifavailable --with-tiff=ifavailable
  --with-gnutls=no --without-pop --enable-gcc-warnings=warn-only
  --enable-checking=yes,glyphs --enable-check-lisp-object-type=yes
  'CFLAGS=-O0 -g3 -no-pie -Wno-missing-braces''

Configured features:
CAIRO DBUS FREETYPE GIF GLIB GSETTINGS HARFBUZZ JPEG LIBSELINUX MODULES
NOTIFY INOTIFY PDUMPER PNG SECCOMP SOUND THREADS TOOLKIT_SCROLL_BARS X11
XDBE XIM XINPUT2 XPM GTK3 ZLIB

Important settings:
   value of $LANG: de_AT.utf8
   value of $XMODIFIERS: @im=ibus
   locale-coding-system: utf-8-unix

Major mode: Lisp Interaction

Minor modes in effect:
   tooltip-mode: t
   global-eldoc-mode: t
   eldoc-mode: t
   show-paren-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
   line-number-mode: t
   indent-tabs-mode: t
   transient-mark-mode: t
   auto-composition-mode: t
   auto-encryption-mode: t
   auto-compression-mode: t

Load-path shadows:
None found.

Features:
(shadow sort mail-extr emacsbug message mailcap yank-media puny dired
dired-loaddefs rfc822 mml mml-sec password-cache epa derived epg rfc6068
epg-config gnus-util text-property-search time-date subr-x mm-decode
mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader
cl-loaddefs cl-lib sendmail rfc2047 rfc2045 ietf-drums mm-util
mail-prsvr mail-utils rmc iso-transl tooltip eldoc paren electric
uniquify ediff-hook vc-hooks lisp-float-type elisp-mode mwheel
term/x-win x-win term/common-win x-dnd tool-bar dnd fontset image
regexp-opt fringe tabulated-list replace newcomment text-mode lisp-mode
prog-mode register page tab-bar menu-bar rfn-eshadow isearch easymenu
timer select scroll-bar mouse jit-lock font-lock syntax font-core
term/tty-colors frame minibuffer nadvice seq simple cl-generic
indonesian philippine cham georgian utf-8-lang misc-lang vietnamese
tibetan thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek
romanian slovak czech european ethiopic indian cyrillic chinese
composite emoji-zwj charscript charprop case-table epa-hook
jka-cmpr-hook help abbrev obarray oclosure cl-preloaded button loaddefs
faces cus-face macroexp files window text-properties overlay sha1 md5
base64 format env code-pages mule custom widget keymap
hashtable-print-readable backquote threads dbusbind inotify
dynamic-setting system-font-setting font-render-setting cairo
move-toolbar gtk x-toolkit xinput2 x multi-tty make-network-process
emacs)

Memory information:
((conses 16 35548 11168)
  (symbols 48 5036 1)
  (strings 32 13288 1964)
  (string-bytes 1 426532)
  (vectors 16 9152)
  (vector-slots 8 144810 14580)
  (floats 8 22 19)
  (intervals 56 212 0)
  (buffers 992 10))

bug#56306: 29.0.50; 'temp-buffer-resize-mode' does not account for back button

[Lars Ingebrigtsen]

martin rudalics <rudalics@gmx.at> writes:

> With emacs -Q do
>
> M-x temp-buffer-resize-mode
> C-h f setq RET
> C-h f set RET
>
> The *Help* window does not show the back button.
>
> Note the comment in 'temp-buffer-resize-mode' which warns about this as
>
>       ;; `help-make-xrefs' may add a `back' button and thus increase the
>       ;; text size, so `resize-temp-buffer-window' must be run *after* it.

Yup.  I've now fixed this in Emacs 29.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no