bug#1322: dedicated *Help* and M-x help-for-help

[David Reitter]

`help-on-help' cannot deal with dedicated windows.
To reproduce:

(setq special-display-buffer-names '("*Help*"))
(help-on-help)

This will open a new frame with the *Help* buffer.  However, as soon  
as the user presses one of the keys (e.g., `a`), the frame is  
iconified, which is unexpected and not what you get when the window is  
not dedicated.


Credit for the original bug report is due to Aquamacs Emacs user John  
Manoogian III.



In GNU Emacs 23.0.60.34 (i386-apple-darwin9.4.0, *Step 9.0)
 of 2008-08-21 on scarlett  [excuse the old version - either way,  
help.el hasn't been changed since the summer]
Windowing system distributor `Apple', version 49.46.48
configured using `configure  '--with-ns' '--without-x' '--with-app''

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: nil
  value of $XMODIFIERS: nil
  locale-coding-system: nil
  default-enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  tooltip-mode: t
  tool-bar-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-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:
<down-mouse-1> <mouse-1> C-x b <return> ( s e t q m
SPC <backspace> <backspace> SPC s p e c i a l - d i
s p l a y - b u f f e r - a b <backspace> <backspace>
n a m e s SPC ' ( ( <backspace> " * H <backspace> <backspace>
SPC * H e l p SPC * <backspace> <backspace> * SPC "
) ) C-x C-e <return> <return> M-x <up> h e l p - o
n - h <tab> <return> e <tab> <return> <backspace> <backspace>
<backspace> <backspace> <tab> <backspace> f <tab> <return>
q <up> <left> <left> <left> <left> <backspace> <left>
<left> <left> <left> <left> <left> <backspace> <down>
C-x C-e <escape> x <up> <return> a <switch-frame> <switch-frame>
C-g <switch-frame> <down-mouse-1> <mouse-movement>
<mouse-movement> <mouse-movement> <drag-mouse-1> s-c
<down-mouse-1> <mouse-movement> <mouse-movement> <drag-mouse-1>
<tool-bar> <cut> <help-echo> <menu-bar> <help-menu>
<send-emacs-bug-report> <help-echo> <switch-frame>
<help-echo> <menu-bar> <help-menu> <send-emacs-bug-report>
<switch-frame> h e l p <return> s-w <menu-bar> <help-menu>
<send-emacs-bug-report>

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
Unable to load color "darkblue"
(" *Help* ")
goto-history-element: Beginning of history; no preceding item
("*Help*")
Quit
byte-code: Command attempted to use minibuffer while in minibuffer
Buffer is read-only: #<buffer *Help*> [4 times]
help-follow: No cross-reference here





Begin forwarded message:

> From: John Manoogian III <jm3@jm3.net>
> Date: 8 November 2008 00:33:02 EST
> To: aquamacs-bugs@aquamacs.org
> Cc: John Manoogian III <jm3@jm3.net>
> Subject: [Aquamacs-bugs] help-for-help buffer minimizes and ignores  
> key input
>
> repro steps after following all the steps in http://aquamacs.org/
> reporting-bugs.shtml:
>
> 1. M-x help-for-help
> 2. (help buffer appears in new os x window with menu options
> a,b,c,C,d,e,f,F,h, etc.)
> 3. type any of the menu keys presented
>
> expected behavior: chosen menu activates
>
> actual behavior: window minimizes to the OS X dock, then, sometimes,
> it unminimizes itself again immediately. chosen menu does not activate
>
>
>
> In GNU Emacs 22.3.2 (i386-apple-darwin9.5.0, Carbon Version 1.6.0)
>  of 2008-11-07 on plume.sr.unh.edu - Aquamacs Distribution 1.6CVS
> Windowing system distributor `Apple Inc.', version 10.4.11
> configured using `configure  '--without-x' '--prefix=/usr/local''