--- /dev/null
+# Blosxom Plugin: uf_geo_meta
+# Author(s): Gavin Carr <gavin@openfusion.com.au>
+# Version: 0.001000
+# Documentation: 'perldoc uf_geo_meta'
+
+package uf_geo_meta;
+
+use strict;
+
+# Uncomment next line to enable debug output (don't uncomment debug() lines)
+#use Blosxom::Debug debug_level => 1;
+
+# --- Configurable variables -----
+
+my %config = (
+
+ # Extra CSS classes to add to the microformat container e.g. to turn display off
+ class => '',
+ #class => 'nodisplay',
+
+ # Whether to automatically add microformat to story bodies. If not set,
+ # you must explicitly add $uf_adr_meta::adr to a template somewhere.
+ auto_append_to_body => 1,
+
+ # What markup style to use for your adr, if auto-appending.
+ # 3 styles are currently defined:
+ # 'div-span' uses a 'div' elt for the container, and 'span' elements for the fields
+ # 'ul' uses a 'ul' list for the container, and 'li' elements for the fields
+ # 'dl' uses a 'dl' list for the container, 'dt' elements for field names, and
+ # 'dd' elements for the fields themselves
+ #style => 'div-span',
+ #style => 'ul',
+ style => 'dl',
+
+);
+
+# --------------------------------
+
+use vars qw($geo);
+
+# Attributes which if set will cause us to skip this plugin (looks like an adr)
+my @skip_attr = qw(locality region postal-code country-name city state postcode country);
+
+$config{style} = 'div-span' unless $config{style} eq 'ul' or $config{style} eq 'dl';
+
+sub start { 1 }
+
+# Return the first existing metadata item key and value given a list of keys
+sub _get_meta {
+ for my $attr ( @_ ) {
+ my $meta_attr = $attr;
+ $meta_attr =~ s/-/_/g;
+ my $value = $blosxom::meta{$meta_attr};
+ $value = eval "\$meta::$attr" unless defined $value;
+ return wantarray ? ( $attr, $value ) : $value if defined $value;
+ }
+ return wantarray ? () : undef;
+}
+
+sub story {
+ my ($pkg, $path, $filename, $story_ref, $title_ref, $body_ref) = @_;
+
+ # Skip if any of the @skip_attr are set
+ for (@skip_attr) {
+ return 1 if $blosxom::meta{$_} || eval "\$meta::$_";
+ }
+
+ my $story_style = _get_meta( 'geo_style' ) || $config{style};
+ my $ctag = $story_style eq 'div-span' ? 'div' : $story_style;
+ my $etag = $story_style eq 'div-span' ? 'span' :
+ $story_style eq 'ul' ? 'li' : 'dd';
+ my $sep = ', ' if $story_style eq 'div-span';
+
+ my $latitude = _get_meta('latitude');
+ my $longitude = _get_meta('longitude');
+ return 1 unless defined $latitude && defined $longitude;
+
+ $geo = '';
+ my $container_classes = 'geo';
+ if (my $meta_class = _get_meta('geo_class')) {
+ $container_classes .= " $meta_class";
+ }
+ else {
+ $container_classes .= " $config{class}" if $config{class};
+ }
+
+ $geo .= qq(<$ctag class="$container_classes">);
+ $geo .= qq(<dt>Latitude</dt>) if $story_style eq 'dl';
+ $geo .= qq(<$etag class="latitude">$latitude</$etag>);
+ $geo .= $sep if $story_style = 'div-span';
+ $geo .= qq(<dt>Longitude</dt>) if $story_style eq 'dl';
+ $geo .= qq(<$etag class="longitude">$longitude</$etag>);
+ $geo .= qq(</$ctag>);
+ # debug(1, "uf_geo_meta: $geo\n");
+
+ my $autoappend = _get_meta( 'geo_autoappend' );
+ $autoappend = $config{auto_append_to_body} unless defined $autoappend;
+ return 1 unless $autoappend;
+
+ $$body_ref .= "\n\n$geo\n\n";
+
+ return 1;
+}
+
+1;
+
+__END__
+
+=head1 NAME
+
+uf_geo_meta - plugin to create a 'geo' microformat tag from post metadata
+
+=head1 DESCRIPTION
+
+uf_geo_meta is a plugin to create a 'geo' microformat tag from metadata
+in your post. The microformat tag is created in the $uf_geo_meta::geo
+variable for use in templates or by other plugins, or if the
+'auto_append_to_body' config variable is set (it is by default), uf_geo_meta
+will append the tag to your story body automatically.
+
+=head2 REQUIRED METADATA ITEMS
+
+=over 4
+
+=item latitude
+
+A decimal between -90.0 (South Pole) and +90.0 (North Pole), indicating
+degrees of latitude.
+
+=item longitude
+
+A decimal between -180.0 (western hemisphere) and +180.0 (eastern hemisphere),
+indicating degrees of longitude.
+
+=back
+
+If any required metadata is missing the plugin just skips the story.
+
+=head2 Config Elements
+
+uf_geo_meta also supports a couple of config elements that can be used to
+override plugin config data on a per-story basis:
+
+=over 4
+
+=item Geo-Class (metamail) / geo_class (meta)
+
+This class (or list of classes) is appended to the class list applied to the
+top-level geo element in the rendered geo i.e. it overrides the
+'class' config variable.
+
+=item Geo-Autoappend (metamail) / geo_autoappend (meta)
+
+This is a flag (0 or 1) indicating whether the rendered geo should be
+automatically appended to the story body. It overrides the 'auto_append_to_body'
+config variable.
+
+=item Geo-Style (metamail) / geo_style (meta)
+
+One of the following styles: 'div-span', 'ul', 'dl', used to render the geo.
+It overrides the 'style' config variable.
+
+=back
+
+=head1 EXAMPLE
+
+Adding a geo microformat to your post then becomes as simple as:
+
+ Testing uf_geo_meta
+ Latitude: -33.717770
+ Longitude: 151.115886
+
+if using metamail, or:
+
+ Random blog post
+ meta-latitude: -33.717770
+ meta-longitude: 151.115886
+
+=head1 USAGE
+
+uf_geo_meta should be loaded after the meta plugins (meta
+itself, or the metaclear/metamail/metadir/metafile family).
+
+=head1 SEE ALSO
+
+Microformats.org: http://www.microformats.org/,
+http://microformats.org/wiki/geo.
+
+Blosxom: http://blosxom.sourceforge.net/
+
+=head1 AUTHOR
+
+Gavin Carr <gavin@openfusion.com.au>, http://www.openfusion.net/
+
+=head1 LICENSE
+
+Copyright 2007, Gavin Carr.
+
+This plugin is licensed under the same terms as blosxom itself i.e.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+=cut
+
+# vim:ft=perl
projects / matthijs / upstream / blosxom-plugins.git / blobdiff