master 6b2d5ad 2/4: Add a new Gnus command to toggle whether to use fonts in shr

[Lars Ingebrigtsen]

branch: master
commit 6b2d5ad615fdcf14270a11af5a32b7fc3a964706
Author: Alex Bochannek <alex@bochannek.com>
Commit: Lars Ingebrigtsen <larsi@gnus.org>

    Add a new Gnus command to toggle whether to use fonts in shr
    
    * doc/misc/gnus.texi (Article Washing): Document it.
    
    * lisp/gnus/gnus-art.el (gnus-article-toggle-fonts): New command
    and key binding (bug#50383).
---
 doc/misc/gnus.texi    | 6 ++++++
 lisp/gnus/gnus-art.el | 8 ++++++++
 lisp/gnus/gnus-sum.el | 2 ++
 3 files changed, 16 insertions(+)

diff --git a/doc/misc/gnus.texi b/doc/misc/gnus.texi
index 5f3fba0..b384764 100644
--- a/doc/misc/gnus.texi
+++ b/doc/misc/gnus.texi
@@ -9374,6 +9374,12 @@ Use html2text---a simple @acronym{HTML} converter 
included with Gnus.
 
 @end table
 
+@item W D F
+@kindex W D F @r{(Summary)}
+@findex gnus-article-toggle-fonts
+Toggle proportional fonts for @acronym{HTML} articles.  This temporarily
+changes the @code{shr-use-fonts} variable in the current article buffer.
+
 @item W b
 @kindex W b @r{(Summary)}
 @findex gnus-article-add-buttons
diff --git a/lisp/gnus/gnus-art.el b/lisp/gnus/gnus-art.el
index 3c1403e..c4fa1e9 100644
--- a/lisp/gnus/gnus-art.el
+++ b/lisp/gnus/gnus-art.el
@@ -2243,6 +2243,14 @@ This only works if the article in question is HTML."
            (funcall function (get-text-property start 'image-url)
                     start end)))))))
 
+(defun gnus-article-toggle-fonts ()
+  "Toggle the use of proportional fonts for HTML articles."
+  (interactive nil gnus-article-mode gnus-summary-mode)
+  (gnus-with-article-buffer
+    (when (eq mm-text-html-renderer 'shr)
+      (setq-local shr-use-fonts (not shr-use-fonts))
+      (gnus-summary-show-article))))
+
 (defun gnus-article-treat-fold-newsgroups ()
   "Fold the Newsgroups and Followup-To message headers."
   (interactive nil gnus-article-mode gnus-summary-mode)
diff --git a/lisp/gnus/gnus-sum.el b/lisp/gnus/gnus-sum.el
index 856e95c..c28e38e 100644
--- a/lisp/gnus/gnus-sum.el
+++ b/lisp/gnus/gnus-sum.el
@@ -2252,6 +2252,7 @@ increase the score of each group you read."
   "s" gnus-treat-smiley
   "D" gnus-article-remove-images
   "W" gnus-article-show-images
+  "F" gnus-article-toggle-fonts
   "f" gnus-treat-from-picon
   "m" gnus-treat-mail-picon
   "n" gnus-treat-newsgroups-picon
@@ -2561,6 +2562,7 @@ gnus-summary-show-article-from-menu-as-charset-%s" cs))))
              ["Unfold headers" gnus-article-treat-unfold-headers t]
              ["Fold newsgroups" gnus-article-treat-fold-newsgroups t]
              ["Html" gnus-article-wash-html t]
+             ["Toggle HTML fonts" gnus-article-toggle-fonts t]
              ["Unsplit URLs" gnus-article-unsplit-urls t]
              ["Verify X-PGP-Sig" gnus-article-verify-x-pgp-sig t]
              ["Decode HZ" gnus-article-decode-HZ t]