From: Juanma Barranquero <lekktu@gmail.com>
To: Allan Gottlieb <gottlieb@nyu.edu>
Cc: 4366@debbugs.gnu.org
Subject: bug#4366: 23.1; Can't turn off visual-line-mode via html-mode-hook
Date: Fri, 8 Jan 2010 05:12:16 +0100 [thread overview]
Message-ID: <f7ccd24b1001072012p218c188ax3412813a62ed8196@mail.gmail.com> (raw)
In-Reply-To: <yu94oreaisa.fsf@nyu.edu>
On Mon, Sep 7, 2009 at 16:14, Allan Gottlieb <gottlieb@nyu.edu> wrote:
> Start emacs -Q
> (load-file "/tmp/fun.el")
> (global-visual-line-mode)
> (add-hook 'html-mode-hook 'visual-off-fill-on)
> (find-file "/tmp/x.html") ; non-existent file
>
> mode line shows fill as expected, but also shows wrap, the bug.
>
> However, if one does instead
>
> Start emacs -Q
> (load-file "/tmp/fun.el")
> (global-visual-line-mode)
> (find-file "/tmp/x.html") ; non-existent file
> (visual-off-fill-on)
>
> then all is well (mode line shows fill and not wrap).
That is not a bug. When you do (global-visual-line-mode) [which
should better be (global-visual-line-mode 1), BTW], the function adds
code to several hooks to check for new buffers (find-file-hook, etc.).
In your first case, the global mode is active (so the hooks are
active); when you run find-file, it creates the buffer, runs
html-mode-hook (disabling visual-line-mode), and finally a hook is run
which activates the mode.
In the second case, you activate the global mode, run find-file (and
the hooks check that visual mode is active, so do nothing), and
finally run visual-off-fill-on, deactivating the visual-line mode.
If you want to deactivate the mode automatically after find-file,
there are several ways, like an `after' advice for find-file, or
adding code to the relevant hooks, etc.
Juanma
next prev parent reply other threads:[~2010-01-08 4:12 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <f7ccd24b1001080130v1b32901fu663da50659140c2b@mail.gmail.com>
2009-09-07 15:14 ` bug#4366: 23.1; Can't turn off visual-line-mode via html-mode-hook Allan Gottlieb
2010-01-08 4:12 ` Juanma Barranquero [this message]
2010-01-08 7:04 ` Lennart Borgman
2010-01-08 17:34 ` Stefan Monnier
2010-01-08 17:45 ` Juanma Barranquero
2010-01-09 11:17 ` Lennart Borgman
2010-01-10 3:05 ` bug#4366: 23.1; Can't turn off visual-line-mode via Stefan Monnier
2010-01-08 9:31 ` bug#4366: marked as done (23.1; Can't turn off visual-line-mode via html-mode-hook) Emacs bug Tracking System
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