GNU bug report logs - #7292
Inappropriate uses of toggle-read-only?

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Ryan Twitchell <metatheorem <at> gmail.com>
Subject: bug#7292: closed (Re: bug#7292: view-mode clobbers speedbar bindings)
Date: Thu, 10 Nov 2011 02:20:02 +0000

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Your bug report

#7292: Inappropriate uses of toggle-read-only?

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 7292 <at> debbugs.gnu.org.

-- 
7292: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=7292
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Glenn Morris <rgm <at> gnu.org>
To: 7292-done <at> debbugs.gnu.org
Subject: Re: bug#7292: view-mode clobbers speedbar bindings
Date: Wed, 09 Nov 2011 21:19:48 -0500

Version: 24.0.92

Stefan Monnier wrote:

> So let's add it to byte-compile-interactive-only-functions (with
> a comment about why); and if it turns out that there are many cases
> where calling it from Elisp makes sense, then we'll get to learn which
> are the cases where it makes sense.

Done.

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From: Ryan Twitchell <metatheorem <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: view-mode clobbers speedbar bindings
Date: Wed, 27 Oct 2010 20:03:10 -0400

Hi,

A number of speedbar's bindings, such as 'n' and 'p', do not work with
view-mode enabled in the speedbar buffer (which makes no sense anyway). 
This is relevant when view-read-only is set, causing speedbar-mode to
implicitly enable view-mode.

For my part, I have redefined speedbar-mode in my .emacs file as follows:

(require 'speedbar)
(defvar real-speedbar-mode #'speedbar-mode)
(defun speedbar-mode ()
  (let ((view-read-only nil))
    (funcall #'real-speedbar-mode)))


This appears to solve the problem.  speedbar-mode calls
toggle-read-only; binding view-read-only to nil around that call should
be a more permanent fix.

M-x emacs-version
GNU Emacs 23.2.1 (x86_64-pc-linux-gnu, GTK+ Version 2.20.1) of
2010-09-26 on falconsrevenge

Thanks,
Ryan Twitchell

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