Make [[!meta enclosure=foo.mp3]] "work" for HTML.

IkiWiki/Plugin/meta.pm

@@ -121,6 +121,9 @@ sub preprocess (@) {
 		add_link($page, $value);
 		return "";
 	}
+	elsif ($key eq 'enclosure') {
+		$pagestate{$page}{meta}{enclosure}=$value;
+	}
 	elsif ($key eq 'author') {
 		$pagestate{$page}{meta}{author}=$value;
 		if (exists $params{sortas}) {
@@ -318,6 +321,11 @@ sub pagetemplate (@) {
 		$template->param(title_overridden => 1);
 	}
 
+	if (exists $pagestate{$page}{meta}{enclosure}) {
+		# XXX what if the enclosure doesn't exist?
+		$template->param(enclosure => $pagestate{$page}{meta}{enclosure});
+	}
+
 	foreach my $field (qw{authorurl}) {
 		eval q{use HTML::Entities};
 		$template->param($field => HTML::Entities::encode_entities($pagestate{$page}{meta}{$field}))

t/podcast.t

@@ -3,23 +3,27 @@ use warnings;
 use strict;
 
 BEGIN {
-	eval q{use XML::Feed};
+	eval q{use XML::Feed; use HTML::Parser};
 	if ($@) {
-		eval q{use Test::More skip_all => "XML::Feed not available"};
+		eval q{use Test::More skip_all =>
+			"XML::Feed and/or HTML::Parser not available"};
 	}
 	else {
-		eval q{use Test::More tests => 72};
+		eval q{use Test::More tests => 77};
 	}
 }
 
+my $tmp = 't/tmp';
+my $statedir = 't/tinypodcast/.ikiwiki';
+
 sub simple_podcast {
 	my $baseurl = 'http://example.com';
 	my @command = (qw(./ikiwiki.out -plugin inline -rss -atom));
 	push @command, qw(-underlaydir=underlays/basewiki);
 	push @command, qw(-set underlaydirbase=underlays -templatedir=templates);
-	push @command, "-url=$baseurl", qw(t/tinypodcast t/tmp/out);
+	push @command, "-url=$baseurl", qw(t/tinypodcast), "$tmp/out";
 
-	ok(! system("mkdir t/tmp"));
+	ok(! system("mkdir $tmp"));
 	ok(! system(@command));
 
 	my %media_types = (
@@ -30,7 +34,7 @@ sub simple_podcast {
 	);
 
 	for my $format (qw(atom rss)) {
-		my $feed = XML::Feed->parse("t/tmp/out/index.$format");
+		my $feed = XML::Feed->parse("$tmp/out/index.$format");
 
 		is($feed->title, 'wiki',
 			qq{$format feed title});
@@ -82,7 +86,58 @@ sub simple_podcast {
 		}
 	}
 
-	ok(! system("rm -rf t/tmp t/tinypodcast/.ikiwiki"));
+	ok(! system("rm -rf $tmp $statedir"));
+}
+
+sub single_page_html {
+	my @command = (qw(./ikiwiki.out));
+	push @command, qw(-underlaydir=underlays/basewiki);
+	push @command, qw(-set underlaydirbase=underlays -templatedir=templates);
+	push @command, qw(t/tinypodcast), "$tmp/out";
+
+	ok(! system("mkdir $tmp"));
+	ok(! system(@command));
+	my $html = "$tmp/out/podcast/index.html";
+
+	my $body = _extract_html_content($html, 'content');
+	like($body, qr/article has content and/m, q{html body text});
+
+	my $enclosure = _extract_html_content($html, 'enclosure');
+	like($enclosure, qr/Download this episode/m, q{html enclosure});
+
+	# XXX die if specified enclosure doesn't exist
+	# XXX die if more than one enclosure is specified
+
+	ok(! system("rm -rf $tmp $statedir"));
+}
+
+sub _extract_html_content {
+	my ($file, $desired_id, $desired_tag) = @_;
+	$desired_tag = 'div' unless defined $desired_tag;
+
+	my $p = HTML::Parser->new(api_version => 3);
+	my $content = '';
+
+	$p->handler(start => sub {
+		my ($tag, $self, $attr) = @_;
+		return if $tag ne $desired_tag;
+		return unless exists $attr->{id} && $attr->{id} eq $desired_id;
+
+		$self->handler(text => sub {
+			my ($dtext) = @_;
+			$content .= $dtext;
+		}, "dtext");
+
+		$self->handler(end  => sub {
+			my ($tag, $self) = @_;
+			$self->eof if $tag eq $desired_tag;
+		}, "tagname,self");
+	}, "tagname,self,attr");
+
+	$p->parse_file($file) || die $!;
+
+	return $content;
 }
 
 simple_podcast();
+single_page_html();

t/tinypodcast/podcast.mdwn

@@ -0,0 +1,3 @@
+[[!meta enclosure="piano.mp3"]]
+
+this article has content _and_ an enclosure!

templates/page.tmpl

@@ -128,6 +128,12 @@
 <TMPL_VAR CONTENT>
 <TMPL_IF HTML5></section><TMPL_ELSE></div></TMPL_IF>
 
+<TMPL_IF HTML5><section id="enclosure"><TMPL_ELSE><div id="enclosure"></TMPL_IF>
+<TMPL_IF ENCLOSURE>
+<a href="<TMPL_VAR ENCLOSURE>">Download this episode</a>
+</TMPL_IF>
+<TMPL_IF HTML5></section><TMPL_ELSE></div></TMPL_IF>
+
 <TMPL_UNLESS DYNAMIC>
 <TMPL_IF COMMENTS>
 <TMPL_IF HTML5><section id="comments"><TMPL_ELSE><div id="comments"></TMPL_IF>