path: root/IkiWiki/Plugin/sidebar.pm

#!/usr/bin/perl
# Sidebar plugin.
# by Tuomo Valkonen <tuomov at iki dot fi>

package IkiWiki::Plugin::sidebar;

use warnings;
use strict;
use IkiWiki;

sub import { #{{{
    IkiWiki::hook(type => "pagetemplate", id => "sidebar", 
        call => \&pagetemplate);
} # }}}

sub sidebar_content ($) { #{{{
    my $page=shift;
    
    my $sidebar_page=IkiWiki::bestlink($page, "sidebar") || return;
    my $sidebar_file=$IkiWiki::pagesources{$sidebar_page} || return;
    my $sidebar_type=IkiWiki::pagetype($sidebar_file);
    
    if (defined $sidebar_type) {
        # FIXME: This isn't quite right; it won't take into account
        # adding a new sidebar page. So adding such a page
        # currently requires a wiki rebuild.
        IkiWiki::add_depends($page, $sidebar_page);

        my $content=IkiWiki::readfile(IkiWiki::srcfile($sidebar_file));
        return unless length $content;
        return IkiWiki::htmlize($sidebar_type,
               IkiWiki::preprocess($sidebar_page, $page,
               IkiWiki::linkify($sidebar_page, $page,
               IkiWiki::filter($sidebar_page, $content))));
    }

} # }}}

sub pagetemplate (@) { #{{{
    my %params=@_;

    my $page=$params{page};
    my $template=$params{template};
    
    if ($template->query(name => "sidebar")) {
        my $content=sidebar_content($page);
        if (defined $content && length $content) {
                $template->param(sidebar => $content);
        }
    }
} # }}}

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