aboutsummaryrefslogtreecommitdiff
path: root/IkiWiki/Plugin/tag.pm
blob: 29d1d030a2e328088feb1244d98e934b226dc227 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
#!/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}}]);
		}
	}
} # }}}

1