1 # Blosxom Plugin: uf_geo_meta
2 # Author(s): Gavin Carr <gavin@openfusion.com.au>
4 # Documentation: 'perldoc uf_geo_meta'
10 # Uncomment next line to enable debug output (don't uncomment debug() lines)
11 #use Blosxom::Debug debug_level => 1;
13 # --- Configurable variables -----
17 # Extra CSS classes to add to the microformat container e.g. to turn display off
19 #class => 'nodisplay',
21 # Whether to automatically add microformat to story bodies. If not set,
22 # you must explicitly add $uf_adr_meta::adr to a template somewhere.
23 auto_append_to_body => 1,
25 # What markup style to use for your adr, if auto-appending.
26 # 3 styles are currently defined:
27 # 'div-span' uses a 'div' elt for the container, and 'span' elements for the fields
28 # 'ul' uses a 'ul' list for the container, and 'li' elements for the fields
29 # 'dl' uses a 'dl' list for the container, 'dt' elements for field names, and
30 # 'dd' elements for the fields themselves
37 # --------------------------------
41 # Attributes which if set will cause us to skip this plugin (looks like an adr)
42 my @skip_attr = qw(locality region postal-code country-name city state postcode country);
44 $config{style} = 'div-span' unless $config{style} eq 'ul' or $config{style} eq 'dl';
48 # Return the first existing metadata item key and value given a list of keys
51 my $meta_attr = $attr;
52 $meta_attr =~ s/-/_/g;
53 my $value = $blosxom::meta{$meta_attr};
54 $value = eval "\$meta::$attr" unless defined $value;
55 return wantarray ? ( $attr, $value ) : $value if defined $value;
57 return wantarray ? () : undef;
61 my ($pkg, $path, $filename, $story_ref, $title_ref, $body_ref) = @_;
63 # Skip if any of the @skip_attr are set
65 return 1 if $blosxom::meta{$_} || eval "\$meta::$_";
68 my $story_style = _get_meta( 'geo_style' ) || $config{style};
69 my $ctag = $story_style eq 'div-span' ? 'div' : $story_style;
70 my $etag = $story_style eq 'div-span' ? 'span' :
71 $story_style eq 'ul' ? 'li' : 'dd';
72 my $sep = ', ' if $story_style eq 'div-span';
74 my $latitude = _get_meta('latitude');
75 my $longitude = _get_meta('longitude');
76 return 1 unless defined $latitude && defined $longitude;
79 my $container_classes = 'geo';
80 if (my $meta_class = _get_meta('geo_class')) {
81 $container_classes .= " $meta_class";
84 $container_classes .= " $config{class}" if $config{class};
87 $geo .= qq(<$ctag class="$container_classes">);
88 $geo .= qq(<dt>Latitude</dt>) if $story_style eq 'dl';
89 $geo .= qq(<$etag class="latitude">$latitude</$etag>);
90 $geo .= $sep if $story_style = 'div-span';
91 $geo .= qq(<dt>Longitude</dt>) if $story_style eq 'dl';
92 $geo .= qq(<$etag class="longitude">$longitude</$etag>);
94 # debug(1, "uf_geo_meta: $geo\n");
96 my $autoappend = _get_meta( 'geo_autoappend' );
97 $autoappend = $config{auto_append_to_body} unless defined $autoappend;
98 return 1 unless $autoappend;
100 $$body_ref .= "\n\n$geo\n\n";
111 uf_geo_meta - plugin to create a 'geo' microformat tag from post metadata
115 uf_geo_meta is a plugin to create a 'geo' microformat tag from metadata
116 in your post. The microformat tag is created in the $uf_geo_meta::geo
117 variable for use in templates or by other plugins, or if the
118 'auto_append_to_body' config variable is set (it is by default), uf_geo_meta
119 will append the tag to your story body automatically.
121 =head2 REQUIRED METADATA ITEMS
127 A decimal between -90.0 (South Pole) and +90.0 (North Pole), indicating
132 A decimal between -180.0 (western hemisphere) and +180.0 (eastern hemisphere),
133 indicating degrees of longitude.
137 If any required metadata is missing the plugin just skips the story.
139 =head2 Config Elements
141 uf_geo_meta also supports a couple of config elements that can be used to
142 override plugin config data on a per-story basis:
146 =item Geo-Class (metamail) / geo_class (meta)
148 This class (or list of classes) is appended to the class list applied to the
149 top-level geo element in the rendered geo i.e. it overrides the
150 'class' config variable.
152 =item Geo-Autoappend (metamail) / geo_autoappend (meta)
154 This is a flag (0 or 1) indicating whether the rendered geo should be
155 automatically appended to the story body. It overrides the 'auto_append_to_body'
158 =item Geo-Style (metamail) / geo_style (meta)
160 One of the following styles: 'div-span', 'ul', 'dl', used to render the geo.
161 It overrides the 'style' config variable.
167 Adding a geo microformat to your post then becomes as simple as:
171 Longitude: 151.115886
173 if using metamail, or:
176 meta-latitude: -33.717770
177 meta-longitude: 151.115886
181 uf_geo_meta should be loaded after the meta plugins (meta
182 itself, or the metaclear/metamail/metadir/metafile family).
186 Microformats.org: http://www.microformats.org/,
187 http://microformats.org/wiki/geo.
189 Blosxom: http://blosxom.sourceforge.net/
193 Gavin Carr <gavin@openfusion.com.au>, http://www.openfusion.net/
197 Copyright 2007, Gavin Carr.
199 This plugin is licensed under the same terms as blosxom itself i.e.
201 Permission is hereby granted, free of charge, to any person obtaining a
202 copy of this software and associated documentation files (the "Software"),
203 to deal in the Software without restriction, including without limitation
204 the rights to use, copy, modify, merge, publish, distribute, sublicense,
205 and/or sell copies of the Software, and to permit persons to whom the
206 Software is furnished to do so, subject to the following conditions:
208 The above copyright notice and this permission notice shall be included
209 in all copies or substantial portions of the Software.
211 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
212 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
213 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
214 THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
215 OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
216 ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
217 OTHER DEALINGS IN THE SOFTWARE.