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TOBYINK / HTML-Microformats-0.100 / lib / HTML / Microformats / Format / RelEnclosure.pm 

            

              
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=head1 NAME
HTML::Microformats::Format::RelEnclosure - the rel-enclosure microformat
=head1 SYNOPSIS
 my @enclosures = HTML::Microformats::Format::RelEnclosure->extract_all(
                   $doc->documentElement, $context);
 foreach my $e (@enclosures)
 {
   my $type = $l->get_type || 'unknown';
   printf("%s (%s)\n"), $l->get_href, $type);
 }
=head1 DESCRIPTION
HTML::Microformats::Format::RelEnclosure inherits from HTML::Microformats::Format_Rel. See the
base class definition for a description of property getter/setter methods,
constructors, etc.
=head2 Additional Method
=over 4
=item C<< $relenc->get_type() >>
Returns the media type (Content-Type) of the resource being linked to. This
is taken from the HTML 'type' attribute, so if that's not present, returns undef.
=back
=cut
package HTML::Microformats::Format::RelEnclosure;
use base qw(HTML::Microformats::Format_Rel);
use common::sense;
use 5.008;
use HTML::Microformats::Datatype::String qw(isms);
our $VERSION = '0.100';
sub new
{
        my $class = shift;
        my $self  = $class->SUPER::new(@_);
         
        $self->{'DATA'}->{'type'} = $self->{'element'}->getAttribute('type')
                if $self->{'element'}->hasAttribute('type');
        return $self;
}
sub format_signature
{
        return {
                'rel'      => 'enclosure' ,
                'classes'  => [
                                ['type',     '?#'] ,
                                ['href',     '1#'] ,
                                ['label',    '1#'] ,
                                ['title',    '1#'] ,
                        ] ,
                'rdf:type' => [] ,
                'rdf:property' => {} ,
                }
}
sub profiles
{
        return qw(http://purl.org/uF/rel-enclosure/0.1/);
}
sub add_to_model
{
        my $self  = shift;
        my $model = shift;
        my $enc  = 'http://purl.oclc.org/net/rss_2.0/enc#';
         
        $model->add_statement(RDF::Trine::Statement->new(
                RDF::Trine::Node::Resource->new($self->context->document_uri),
                RDF::Trine::Node::Resource->new("${enc}enclosure"),
                RDF::Trine::Node::Resource->new($self->data->{'href'}),
                ));
                 
        $model->add_statement(RDF::Trine::Statement->new(
                RDF::Trine::Node::Resource->new($self->data->{'href'}),
                RDF::Trine::Node::Resource->new("http://www.w3.org/1999/02/22-rdf-syntax-ns#type"),
                RDF::Trine::Node::Resource->new("${enc}Enclosure"),
                ));
        $model->add_statement(RDF::Trine::Statement->new(
                RDF::Trine::Node::Resource->new($self->data->{'href'}),
                RDF::Trine::Node::Resource->new("${enc}type"),
                RDF::Trine::Node::Literal->new(''.$self->data->{'type'}),
                ))
                if defined $self->data->{'type'};
        $model->add_statement(RDF::Trine::Statement->new(
                RDF::Trine::Node::Resource->new($self->data->{'href'}),
                RDF::Trine::Node::Resource->new("http://www.w3.org/2000/01/rdf-schema#label"),
                $self->_make_literal($self->data->{'label'}),
                ));
        $model->add_statement(RDF::Trine::Statement->new(
                RDF::Trine::Node::Resource->new($self->data->{'href'}),
                RDF::Trine::Node::Resource->new("http://purl.org/dc/terms/title"),
                $self->_make_literal($self->data->{'title'}),
                ));
        return $self;
}
1;
=head1 MICROFORMAT
HTML::Microformats::Format::RelEnclosure supports rel-enclosure as described at
L<http://microformats.org/wiki/rel-enclosure>.
The "title" attribute on the link, and the linked text are taken to be significant.
=head1 RDF OUTPUT
Data is returned using the RSS Enclosures vocabulary
(L<http://purl.oclc.org/net/rss_2.0/enc#>) and occasional other terms.
=head1 BUGS
Please report any bugs to L<http://rt.cpan.org/>.
=head1 SEE ALSO
L<HTML::Microformats::Format_Rel>,
L<HTML::Microformats>,
L<HTML::Microformats::Format::hAtom>.
=head1 AUTHOR
Toby Inkster E<lt>tobyink@cpan.orgE<gt>.
=head1 COPYRIGHT
Copyright 2008-2010 Toby Inkster
This library is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
=cut