GNU bug report logs - #12817
24.2; The button library does not work on the header line

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

From: Damien Cassou <damien.cassou <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.2; The button library does not work on the header line
Date: Tue, 06 Nov 2012 17:59:35 +0100

Hi,

the button library does not work if a button is created on the
header-line:

  (require 'button)

  (defun my-button-action (button)
    (message "HERE I AM"))

  (define-button-type 'my-button-type
    'action #'my-button-action
    'follow-link t)

  (setq test-button (copy-sequence "CLICK ME"))

  (make-text-button test-button nil
                    'type 'my-button-type)

  (setq header-line-format test-button)

After evaluating these lines, a button appear with the text "CLICK ME"
in blue and underlined. But clicking this button does nothing. I was
expecting that clicking the button would trigger 'my-button-action and
display the message "HERE I AM".

There is a library that makes 'button work on header-line: 
https://raw.github.com/tarsius/header-button/master/header-button.el

Thank you

In GNU Emacs 24.2.1 (i686-pc-linux-gnu, GTK+ Version 2.24.13)
 of 2012-11-06 on dubnium, modified by Debian
Windowing system distributor `The X.Org Foundation', version 11.0.11300000
Configured using:
 `configure '--build' 'i686-linux-gnu' '--build' 'i686-linux-gnu'
 '--prefix=/usr' '--sharedstatedir=/var/lib' '--libexecdir=/usr/lib'
 '--localstatedir=/var/lib' '--infodir=/usr/share/info'
 '--mandir=/usr/share/man' '--with-pop=yes'
 '--enable-locallisppath=/etc/emacs24:/etc/emacs:/usr/local/share/emacs/24.2/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/24.2/site-lisp:/usr/share/emacs/site-lisp'
 '--with-crt-dir=/usr/lib/i386-linux-gnu' '--with-x=yes'
 '--with-x-toolkit=gtk' '--with-toolkit-scroll-bars'
 'build_alias=i686-linux-gnu' 'CFLAGS=-g -O2 -fstack-protector
 --param=ssp-buffer-size=4 -Wformat -Werror=format-security -Wall'
 'LDFLAGS=-Wl,-Bsymbolic-functions -Wl,-z,relro'
 'CPPFLAGS=-D_FORTIFY_SOURCE=2''

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
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
<help-echo> <down-mouse-1> <mouse-1> <down-mouse-4> 
<mouse-4> <double-down-mouse-4> <double-mouse-4> <triple-down-mouse-4> 
<triple-mouse-4> C-n C-n C-n C-n C-n C-n C-n C-n C-n 
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-M-x C-l C-l 
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n 
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-M-x C-n 
C-n C-n C-n C-n C-n C-n C-n C-M-x C-n C-l C-l C-n C-n 
C-n C-n C-n C-a C-SPC M-> C-w C-y M-y C-p C-k C-M-x 
C-y C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p 
C-p C-p C-p C-p C-l C-a C-SPC C-n C-n C-f C-f C-x r 
k C-p C-p <tab> C-n <tab> C-n <tab> M-v M-v C-v C-v 
C-l C-p C-p C-p C-e C-n C-a C-k C-n C-SPC C-n C-n C-f 
C-f C-f C-x r k C-p <tab> C-n <tab> C-e C-x C-e q C-p 
C-p C-p C-p C-x C-e C-n C-n C-n C-n C-e C-x C-e <help-echo> 
<down-mouse-1> <mouse-1> <down-mouse-1> <mouse-1> <help-echo> 
<down-mouse-1> <mouse-1> C-n C-n C-n C-n C-a C-SPC 
C-n C-n C-n C-f C-f C-f C-x r k C-e C-x C-e <help-echo> 
<help-echo> <help-echo> <down-mouse-1> <mouse-1> <help-echo> 
<down-mouse-4> <mouse-4> <down-mouse-4> <mouse-4> <down-mouse-4> 
<mouse-4> <down-mouse-4> <mouse-4> <down-mouse-4> <mouse-4> 
<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> <down-mouse-1> <mouse-movement> <drag-mouse-1> 
C-x 1 <down-mouse-1> <mouse-movement> <mouse-1> <help-echo> 
<down-mouse-1> <mouse-1> <help-echo> <down-mouse-1> 
<mouse-1> <help-echo> <down-mouse-1> <mouse-1> <help-echo> 
<down-mouse-1> <mouse-1> <help-echo> <down-mouse-1> 
<mouse-1> <help-echo> <down-mouse-5> <mouse-5> <double-down-mouse-5> 
<double-mouse-5> <triple-down-mouse-5> <triple-mouse-5> 
<down-mouse-1> <mouse-1> <down-mouse-1> <mouse-1> C-p 
C-p C-SPC C-p C-p C-p C-p C-a C-w C-x C-o C-n C-SPC 
M-> <f2> <f2> <f2> C-x 1 C-x 1 C-p C-p C-p <tab> C-n 
<tab> C-n <tab> <down-mouse-1> <mouse-1> C-h k <f2> 
<f2> C-x 1 <down-mouse-1> <mouse-1> C-l <down-mouse-1> 
<mouse-movement> <drag-mouse-1> M-x r e p o r t - e 
m a <tab> <tab> <return>

Recent messages:
This button labeled `No me!' belongs to category `my-header-button'
byte-code: Beginning of buffer
Mark set
This button labeled `Click me!' belongs to category `header-button' [2 times]
This button labeled `No me!' belongs to category `my-header-button'
Mark set [2 times]
Autoscrolling is on.
Type C-x 1 to delete the help window.
Mark set
Making completion list...

Load-path shadows:
/usr/share/emacs/24.2/site-lisp/cmake-data/cmake-mode hides /usr/share/emacs/site-lisp/cmake-mode
/usr/share/emacs/24.2/site-lisp/dictionaries-common/flyspell hides /usr/share/emacs/24.2/lisp/textmodes/flyspell
/usr/share/emacs/24.2/site-lisp/dictionaries-common/ispell hides /usr/share/emacs/24.2/lisp/textmodes/ispell

Features:
(shadow sort gnus-util mail-extr emacsbug message format-spec rfc822 mml
mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev
gmm-utils mailheader sendmail regexp-opt rfc2047 rfc2045 ietf-drums
mm-util mail-prsvr mail-utils two-column debug rect help-mode view
help-fns find-func jka-compr info easymenu edmacro kmacro cl time-date
tooltip ediff-hook vc-hooks lisp-float-type mwheel x-win x-dnd tool-bar
dnd fontset image fringe lisp-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 loaddefs button faces
cus-face files text-properties overlay sha1 md5 base64 format env
code-pages mule custom widget hashtable-print-readable backquote
make-network-process dbusbind dynamic-setting system-font-setting
font-render-setting move-toolbar gtk x-toolkit x multi-tty emacs)

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