Re: gnus-group-icon-list considered funky

[Christoph Conrad <christoph.conrad@gmx.de>]

Hi Tassilo,

thank you for giving me a hint.

> Not really, but there are some variables with "external" in their name
> that might be related. So check your configs for one of those.

It had nothing to do with that, so i had to dig into it with the elisp
debugger.

The relevant (reversed) call stack looks like this:

- gnus-group-get-icon
-> gnus-create-image
-> create-image
-> image-type
-> image-type-from-file-header
-> insert-file-contents-literally

`insert-file-contents-literally' inhibits some file name handlers by
setting `inhibit-file-name-handlers'. I use the package "openwith" from
Markus Triska and he enables it by using

(add-to-list 'file-name-handler-alist '("" . openwith-file-handler)))

so for png files the external program "display" was used anyway. I
worked around that using

(defadvice gnus-group-get-icon( around gnus-group-get-icon-no-openwith act )
  (let (openwith-mode)
    ad-do-it))

now. If you know a better way doing that, i would like to read about it.

Regards,
Christoph