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From: "Rudolf Adamkovič" <salutis@me.com>
To: Jean Louis <bugs@gnu.support>, Ag Ibragimov <agzam.ibragimov@gmail.com>
Cc: bug-gnu-emacs@gnu.org, emacs-orgmode@gnu.org
Subject: Re: 29.0.50; [WISH]: Let us make EWW browse WWW Org files correctly
Date: Wed, 26 Oct 2022 15:00:02 +0200	[thread overview]
Message-ID: <m2k04m210t.fsf@me.com> (raw)
In-Reply-To: <Y1jvkOKVVmnvi6Np@protected.localdomain>

Jean Louis <bugs@gnu.support> writes:

>> This should be trivial to do, I think.

+1 and I say: consider contributing to EWW!

I noticed that the EWW manual says

  PDFs are viewed inline, by default, with doc-view-mode, but this can
  be customized by using the mailcap (see mailcap in Emacs MIME Manual)
  mechanism, in particular mailcap-mime-data.

For some reason, it made me think that EWW uses MIME correctly.

So, I evaluated

  (add-to-list 'mailcap-mime-data
               (list "org"
                 (cons 'viewer 'org-mode)
                 (cons 'type "text/x-org")))

but it did not work.  What the hack!

To satisfy my curiosity, I decided to look at the source code.

In eww.el, the eww-render procedure parses the content-type header and
stores its value in a local let binding.  After that, it dispatches to
the various "display" procedures EWW comes with, such as

    ((equal (car content-type) "application/pdf")
                (eww-display-pdf))

The eww-display-pdf procedure then looks up the MIME viewer for the
application/pdf MIME type specifically.

If no dispatch fits, EWW ends up calling eww-display-raw.

TL;DR EWW hard-codes a couple of MIME types.

You could improve the situation in various ways.

For example, you could

(1) patch EWW to expose the eww-content-type for the user to use, or
(2) patch EWW to look up MIME for not just the PDF.

You could hack something local to you as well, but a patch would make
EWW better for all of us.  So, win-win!

Rudy
-- 
"Programming reliably -- must be an activity of an undeniably
mathematical nature […] You see, mathematics is about thinking, and
doing mathematics is always trying to think as well as possible."
-- Edsger W. Dijkstra, 1981

Rudolf Adamkovič <salutis@me.com> [he/him]
Studenohorská 25
84103 Bratislava
Slovakia


  reply	other threads:[~2022-10-26 13:06 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-25 12:06 29.0.50; [WISH]: Let us make EWW browse WWW Org files correctly Jean Louis
2022-10-25 15:02 ` Dr. Arne Babenhauserheide
2022-10-25 19:56   ` Jean Louis
2022-10-25 21:54     ` Dr. Arne Babenhauserheide
2022-10-26  7:57       ` Jean Louis
2022-10-26 11:55         ` Dr. Arne Babenhauserheide
2022-10-26 12:20           ` Jean Louis
2022-10-26 12:45             ` Andreas Schwab
2022-10-26 13:19               ` bug#58774: " Jean Louis
2022-10-26 13:55                 ` Andreas Schwab
2022-10-26 17:36                   ` Jean Louis
2022-10-27  7:58                     ` Andreas Schwab
2022-10-27  8:40                       ` Jean Louis
2022-10-27 11:22                         ` Andreas Schwab
2022-10-27 11:23                         ` Dr. Arne Babenhauserheide
2022-10-26  7:59       ` Jean Louis
2022-10-25 23:03   ` Ihor Radchenko
2022-10-26  6:07     ` bug#58774: " Stefan Kangas
2022-10-26  6:52       ` Ihor Radchenko
2022-10-26  8:24         ` Jean Louis
2022-10-26 20:22           ` indieterminacy
2022-10-26 11:30         ` Dr. Arne Babenhauserheide
2022-10-26 21:41           ` Tim Cross
2022-10-27 10:43             ` Dr. Arne Babenhauserheide
2022-10-26 13:15         ` Stefan Kangas
2022-10-26  8:21       ` Jean Louis
2022-10-26 17:07         ` Max Nikulin
2022-10-26 18:37           ` Jean Louis
2022-10-26 21:16             ` Dr. Arne Babenhauserheide
2022-10-27  4:25               ` tomas
2022-10-27 11:10                 ` Dr. Arne Babenhauserheide
2022-10-26 21:56             ` indieterminacy
2022-10-26 20:00       ` Tim Cross
2022-10-25 22:13 ` Ag Ibragimov
2022-10-26  8:28   ` Jean Louis
2022-10-26 13:00     ` Rudolf Adamkovič [this message]
2022-10-26 13:42       ` bug#58774: " Jean Louis
2022-10-27  4:55 ` Jean Louis
2022-10-27 11:13   ` Dr. Arne Babenhauserheide
2022-10-27 17:41     ` Jean Louis
2022-10-27 21:43       ` Dr. Arne Babenhauserheide
2022-10-27 15:35   ` bug#58774: " Max Nikulin
2022-10-27 17:58     ` Jean Louis
2022-10-27 21:49       ` Dr. Arne Babenhauserheide
2022-10-27 18:25     ` Jean Louis
2022-10-27 19:53       ` Quiliro Ordóñez
2022-10-27 19:58       ` Quiliro Ordóñez
2022-10-27 21:57     ` Dr. Arne Babenhauserheide
2022-10-27 22:18       ` Jean Louis
2022-10-27 23:14         ` Dr. Arne Babenhauserheide
2022-10-27 23:20       ` Ihor Radchenko
2022-10-28  8:28         ` Dr. Arne Babenhauserheide
2022-11-02  4:09           ` Ihor Radchenko

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