From 7589c4553414ed8b8567761ab82742691a59acd4 Mon Sep 17 00:00:00 2001
From: Lukas Lipavsky <llipavsky@suse.com>
Date: Thu, 27 Jun 2013 12:59:05 +0100
Subject: add tag support to viewers

---
 IkiWiki/Plugin/album.pm | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/IkiWiki/Plugin/album.pm b/IkiWiki/Plugin/album.pm
index 16de8eb97..13c4b4eaf 100644
--- a/IkiWiki/Plugin/album.pm
+++ b/IkiWiki/Plugin/album.pm
@@ -1,7 +1,10 @@
 #!/usr/bin/perl
 # Copyright © 2009-2011 Simon McVittie <http://smcv.pseudorandom.co.uk/>
+# Copyright © 2013 Lukas Lipavsky <lukas@lipavsky.cz>
+#
 # Licensed under the GNU GPL, version 2, or any later version published by the
 # Free Software Foundation
+
 package IkiWiki::Plugin::album;
 
 use warnings;
@@ -25,6 +28,7 @@ sub import {
 	IkiWiki::loadplugin("inline");
 	IkiWiki::loadplugin("trail");
 	IkiWiki::loadplugin("transient");
+	IkiWiki::loadplugin("tag");
 }
 
 sub getsetup () {
@@ -61,6 +65,7 @@ sub getsetup () {
 # sort - as for inline
 # sections - ref to array of pagespecs representing sections
 # viewers - list of viewers' names
+# tags - list of tags that should be added to viewers
 #
 # Page state for image viewers:
 #
@@ -288,6 +293,7 @@ sub preprocess_album {
 	my $album = $params{page};
 
 	my @viewers = scan_images($album);
+	my $tags = defined($params{tag}) ? $params{tag} : "";
 
 	# placeholder for the "remaining images" section
 	push @{$pagestate{$album}{album}{sections}}, ""
@@ -302,6 +308,7 @@ sub preprocess_album {
 		nexttemplate => $params{nexttemplate},
 		prevtemplate => $params{prevtemplate},
 		viewers => [@viewers],
+		tags => [split(' ', $tags)],
 		# in the render phase, we want to keep the sections that we
 		# accumulated during the scan phase, if any
 		sections => $pagestate{$album}{album}{sections},
@@ -456,6 +463,13 @@ sub preprocess_albumimage {
 		$img = htmllink($viewer, $params{destpage}, "/$image");
 	}
 
+	# Tags (always return "")
+	IkiWiki::Plugin::tag::preprocess_tag(
+		page => $viewer,
+		destpage => $params{destpage},
+		map { ($_ => 1) } @{$pagestate{$album}{album}{tags}},
+	);
+
 	my $viewertemplate = template(
 		$pagestate{$album}{album}{viewertemplate} or
 		'albumviewer.tmpl');
-- 
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