ikiwiki/IkiWiki/Plugin/tag.pm

75 lines
1.5 KiB
Perl

#!/usr/bin/perl
# Ikiwiki tag plugin.
package IkiWiki::Plugin::tag;
use warnings;
use strict;
use IkiWiki;
my %tags;
sub import { #{{{
hook(type => "getopt", id => "tag", call => \&getopt);
hook(type => "preprocess", id => "tag", call => \&preprocess, scan => 1);
hook(type => "pagetemplate", id => "tag", call => \&pagetemplate);
} # }}}
sub getopt () { #{{{
eval q{use Getopt::Long};
error($@) if $@;
Getopt::Long::Configure('pass_through');
GetOptions("tagbase=s" => \$config{tagbase});
} #}}}
sub tagpage ($) { #{{{
my $tag=shift;
if (exists $config{tagbase} &&
defined $config{tagbase}) {
$tag=$config{tagbase}."/".$tag;
}
return $tag;
} #}}}
sub preprocess (@) { #{{{
if (! @_) {
return "";
}
my %params=@_;
my $page = $params{page};
delete $params{page};
delete $params{destpage};
$tags{$page} = [];
foreach my $tag (keys %params) {
push @{$tags{$page}}, $tag;
# hidden WikiLink
push @{$links{$page}}, tagpage($tag);
}
return "";
} # }}}
sub pagetemplate (@) { #{{{
my %params=@_;
my $page=$params{page};
my $destpage=$params{destpage};
my $template=$params{template};
$template->param(tags => [
map {
link => htmllink($page, $destpage, tagpage($_))
}, @{$tags{$page}}
]) if exists $tags{$page} && @{$tags{$page}} && $template->query(name => "tags");
if ($template->query(name => "categories")) {
# It's an rss/atom template. Add any categories.
if (exists $tags{$page} && @{$tags{$page}}) {
$template->param(categories => [map { category => $_ }, @{$tags{$page}}]);
}
}
} # }}}
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