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package XML::Feed::Format::Atom;
use strict;
use warnings;
use v5.10;
our $VERSION = '0.65';
use base qw( XML::Feed );
use XML::Atom::Feed;
use XML::Feed::Util qw( format_w3cdtf parse_datetime );
use List::Util qw( first );
use HTML::Entities;
use XML::Atom::Entry;
XML::Atom::Entry->mk_elem_accessors(qw( lat long ), ['http://www.w3.org/2003/01/geo/wgs84_pos#']);
use XML::Atom::Content;
use XML::Feed::Entry::Format::Atom;
sub identify {
my $class = shift;
my $xml = shift;
my $tag = $class->_get_first_tag($xml);
return ($tag eq 'feed');
}
sub init_empty {
my ($feed, %args) = @_;
$args{'Version'} //= '1.0';
$feed->{atom} = XML::Atom::Feed->new(%args);
$feed;
}
sub init_string {
my $feed = shift;
my($str) = @_;
if ($str) {
$feed->{atom} = XML::Atom::Feed->new(Stream => $str)
or return $feed->error(XML::Atom::Feed->errstr);
}
$feed;
}
sub format { 'Atom' }
sub title { shift->{atom}->title(@_) }
sub link {
my $feed = shift;
if (@_) {
$feed->{atom}->add_link({ rel => 'alternate', href => $_[0],
type => 'text/html', });
} else {
my $l = first { !defined $_->rel || $_->rel eq 'alternate' } $feed->{atom}->link;
$l ? $l->href : undef;
}
}
sub _rel_link {
my $feed = shift;
my $rel = shift;
if (@_) {
my $uri = shift;
$feed->{atom}->add_link({type => "application/atom+xml", rel => $rel, href => $uri});
return $uri;
}
else
{
my $l;
if ($rel eq 'self') {
$l = first
{ !defined $_->rel || $_->rel eq 'self' }
$feed->{atom}->link;
} else {
$l = first
{ !defined $_->rel || $_->rel eq $rel }
$feed->{atom}->link;
}
return $l ? $l->href : undef;
}
}
sub self_link { shift->_rel_link( 'self', @_ ) }
sub first_link { shift->_rel_link( 'first', @_ ) }
sub last_link { shift->_rel_link( 'last', @_ ) }
sub next_link { shift->_rel_link( 'next', @_ ) }
sub previous_link { shift->_rel_link( 'previous', @_ ) }
sub current_link { shift->_rel_link( 'current', @_ ) }
sub prev_archive_link { shift->_rel_link( 'prev-archive', @_ ) }
sub next_archive_link { shift->_rel_link( 'next-archive', @_ ) }
sub description { shift->{atom}->tagline(@_) }
sub copyright { shift->{atom}->copyright(@_) }
sub language { shift->{atom}->language(@_) }
sub generator { shift->{atom}->generator(@_) }
sub id { shift->{atom}->id(@_) }
sub updated { shift->modified(@_) }
sub add_link { shift->{atom}->add_link(@_) }
sub base { shift->{atom}->base(@_) }
sub author {
my $feed = shift;
if (@_ && $_[0]) {
my $person = XML::Atom::Person->new(Version => 1.0);
$person->name($_[0]);
$feed->{atom}->author($person);
} else {
$feed->{atom}->author ? $feed->{atom}->author->name : undef;
}
}
sub image {
return;
}
sub modified {
my $feed = shift;
if (@_) {
$feed->{atom}->modified(format_w3cdtf($_[0]));
} else {
parse_datetime($feed->{atom}->modified || $feed->{atom}->updated);
}
}
sub entries {
my @entries;
for my $entry ($_[0]->{atom}->entries) {
push @entries, XML::Feed::Entry::Format::Atom->wrap($entry);
}
@entries;
}
sub add_entry {
my $feed = shift;
my $entry = shift || return;
$entry = $feed->_convert_entry($entry);
$feed->{atom}->add_entry($entry->unwrap);
}
sub as_xml { $_[0]->{atom}->as_xml }
1;
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