[PATCH v2] emacs: Turn id:"<message-id>" elements into buttons for notmuch searches

[Daniel Schoepe]

Hi Dmitry,

On Thu, 07 Jul 2011 11:16:03 +0400, Dmitry Kurochkin <dmitry.kurochkin at gmail.com> wrote:
> Why do we need to remove `goto-address-mode' overlays if it is not
> enabled ((goto-address-mode t) is below is removed)?
> [..]
> `goto-address-mode' creates buttons not only for email addresses but
> also for URLs.  Do we loose it now?

Everything `goto-address-mode' does is still in effect, I just replaced
(goto-address-mode t) by a call to `goto-address-fontify-region' in
notmuch-show-buttonise-links, to ensure that the id links will be
buttonised (and the overlay removed after it's actually been inserted)
_after_ goto-address does its thing.

I could also have left (goto-address-mode t) in and jit-register-lock'ed
notmuch-show-buttonise-links before that, but then I would be relying on
the fact that fontifiers that are registered first, will be run last. As
far as I can tell this is just an implementation detail and might change
some day.

Cheers,
Daniel
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