Make it easier to use mailcap for viewing single files

* mailcap.el (mailcap-mime-data): Add doc-view-mode as a viewer for
PDFs.
(mailcap-view-mime): New function.

1 files changed, 16 insertions, 0 deletions

diff --git a/lisp/gnus/mailcap.el b/lisp/gnus/mailcap.el
index 4f1bdf4b1df..1a1a9923425 100644
--- a/lisp/gnus/mailcap.el
+++ b/lisp/gnus/mailcap.el
@@ -153,6 +153,10 @@ This is a compatibility function for different Emacsen."
       (type   . "application/zip")
       ("copiousoutput"))
      ("pdf"
+      (viewer . doc-view-mode)
+      (type . "application/pdf")
+      (test . (eq window-system 'x)))
+     ("pdf"
       (viewer . "gv -safer %s")
       (type . "application/pdf")
       (test . window-system)
@@ -1060,6 +1064,18 @@ If FORCE, re-parse even if already parsed."
 			     common-mime-info)))))
     commands))
 
+(defun mailcap-view-mime (type)
+  "View the data in the current buffer that has MIME type TYPE.
+`mailcap-mime-data' determines the method to use."
+  (let ((method (mailcap-mime-info type)))
+    (if (stringp method)
+	(shell-command-on-region (point-min) (point-max)
+				 ;; Use stdin as the "%s".
+				 (format method "-")
+				 (current-buffer)
+				 t)
+      (funcall method))))
+
 (provide 'mailcap)
 
 ;;; mailcap.el ends here