more general openfile script

etc/htmlopen.sh

@@ -1,11 +0,0 @@
-#!/bin/sh
-
-# Helps open an HTML file from mutt in a GUI browser without weird side effects.
-
-file=$(mktemp -u --suffix=.html)
-
-rm -f "$file"
-
-cp "$1" "$file"
-
-setsid firefox "$file" >/dev/null 2>&1 &

etc/mailcap

@@ -1,7 +1,7 @@
 text/plain; vim %s ;
-text/html; ~/.config/mutt/etc/htmlopen.sh %s ;
+text/html; ~/.config/mutt/etc/openfile.sh %s ;
 text/html; w3m -I %{charset} -T text/html; copiousoutput;
 image/*; ~/.config/mutt/etc/muttimage.sh %s ; copiousoutput
 video/*; setsid mpv --quiet %s &; copiousoutput
-application/pdf; cp '%s' /tmp/doc.pdf && setsid zathura /tmp/doc.pdf &; copiousoutput;
+application/pdf; ~/.config/mutt/etc/openfile.sh %s ;
 application/pgp-encrypted; gpg -d '%s'; copiousoutput;

etc/openfile.sh

@@ -0,0 +1,14 @@
+#!/bin/sh
+
+# Helps open a file with xdg-open from mutt in a external program without weird side effects.
+
+base=$(basename "$1")
+ext="${base##*.}"
+
+file=$(mktemp -u --suffix=".$ext")
+
+rm -f "$file"
+
+cp "$1" "$file"
+
+setsid xdg-open "$file" >/dev/null 2>&1 &