4 * Description: Use OpenStreetMap for displaying locations. After activation the post location just beneath your avatar in your posts will link to OpenStreetMap.
6 * Author: Fabio <http://kirgroup.com/~fabrixxm>
7 * Author: Mike Macgirvin <http://macgirvin.com/profile/mike>
8 * Author: Klaus Weidenbach
12 require_once('include/cache.php');
15 function openstreetmap_install() {
16 register_hook('render_location', 'addon/openstreetmap/openstreetmap.php', 'openstreetmap_location');
17 register_hook('generate_map', 'addon/openstreetmap/openstreetmap.php', 'openstreetmap_generate_map');
18 register_hook('generate_named_map', 'addon/openstreetmap/openstreetmap.php', 'openstreetmap_generate_named_map');
19 register_hook('page_header', 'addon/openstreetmap/openstreetmap.php', 'openstreetmap_alterheader');
21 logger("installed openstreetmap");
24 function openstreetmap_uninstall() {
25 unregister_hook('render_location', 'addon/openstreetmap/openstreetmap.php', 'openstreetmap_location');
26 unregister_hook('generate_map', 'addon/openstreetmap/openstreetmap.php', 'openstreetmap_generate_map');
27 unregister_hook('generate_named_map', 'addon/openstreetmap/openstreetmap.php', 'openstreetmap_generate_named_map');
28 unregister_hook('page_header', 'addon/openstreetmap/openstreetmap.php', 'openstreetmap_alterheader');
30 logger("removed openstreetmap");
33 function openstreetmap_alterheader($a, &$navHtml) {
34 $addScriptTag = '<script type="text/javascript" src="' . $a->get_baseurl() . '/addon/openstreetmap/openstreetmap.js"></script>' . "\r\n";
35 $a->page['htmlhead'] .= $addScriptTag;
39 * @brief Add link to a map for an item's set location/coordinates.
41 * If an item has coordinates add link to a tile map server, e.g. openstreetmap.org.
42 * If an item has a location open it with the help of OSM's Nominatim reverse geocode search.
47 function openstreetmap_location($a, &$item) {
49 if(! (strlen($item['location']) || strlen($item['coord'])))
53 * Get the configuration variables from the config.
54 * @todo Separate the tile map server from the text-string to map tile server
55 * since they apparently use different URL conventions.
56 * We use OSM's current convention of "#map=zoom/lat/lon" and optional
57 * ?mlat=lat&mlon=lon for markers.
60 $tmsserver = get_config('openstreetmap', 'tmsserver');
62 $tmsserver = 'http://www.openstreetmap.org';
64 $nomserver = get_config('openstreetmap', 'nomserver');
66 $nomserver = 'http://nominatim.openstreetmap.org/search.php';
68 $zoom = get_config('openstreetmap', 'zoom');
72 $marker = get_config('openstreetmap', 'marker');
76 if ($item['coord'] != "") {
77 $coords = explode(' ', $item['coord']);
78 if(count($coords) > 1) {
79 $lat = urlencode(round($coords[0], 5));
80 $lon = urlencode(round($coords[1], 5));
83 $target .= '?mlat='.$lat.'&mlon='.$lon;
84 $target .= '#map='.intval($zoom).'/'.$lat.'/'.$lon;
89 $target = $nomserver.'?q='.urlencode($item['location']);
91 if ($item['location'] != "")
92 $title = $item['location'];
94 $title = $item['coord'];
96 $item['html'] = '<a target="map" title="'.$title.'" href= "'.$target.'">'.$title.'</a>';
100 function openstreetmap_generate_named_map(&$a,&$b) {
103 $nomserver = get_config('openstreetmap', 'nomserver');
105 $nomserver = 'http://nominatim.openstreetmap.org/search.php';
106 $args = '?q=' . urlencode($b['location']) . '&format=json';
108 $x = z_fetch_url($nomserver . $args);
110 $j = json_decode($x['body'],true);
112 if($j && is_array($j) && $j[0]['lat'] && $j[0]['lon']) {
113 $arr = array('lat' => $j[0]['lat'],'lon' => $j[0]['lon'],'location' => $b['location'], 'html' => '');
114 openstreetmap_generate_map($a,$arr);
115 $b['html'] = $arr['html'];
120 function openstreetmap_generate_map(&$a,&$b) {
122 $tmsserver = get_config('openstreetmap', 'tmsserver');
124 $tmsserver = 'http://www.openstreetmap.org';
125 if(strpos(z_root(),'https:') !== false)
126 $tmsserver = str_replace('http:','https:',$tmsserver);
129 $zoom = get_config('openstreetmap', 'zoom');
133 $marker = get_config('openstreetmap', 'marker');
137 $lat = $b['lat']; // round($b['lat'], 5);
138 $lon = $b['lon']; // round($b['lon'], 5);
140 logger('lat: ' . $lat, LOGGER_DATA);
141 logger('lon: ' . $lon, LOGGER_DATA);
144 $b['html'] = '<iframe style="width:100%; height:300px; border:1px solid #ccc" src="' . $tmsserver . '/export/embed.html?bbox=' . ($lon - 0.01) . '%2C' . ($lat - 0.01) . '%2C' . ($lon + 0.01) . '%2C' . ($lat + 0.01) ;
146 $b['html'] .= '&layer=mapnik&marker=' . $lat . '%2C' . $lon . '" style="border: 1px solid black"></iframe><br/><small><a href="' . $tmsserver . '/?mlat=' . $lat . '&mlon=' . $lon . '#map=16/' . $lat . '/' . $lon . '">' . (($b['location']) ? escape_tags($b['location']) : t('View Larger')) . '</a></small>';
148 logger('generate_map: ' . $b['html'], LOGGER_DATA);
152 function openstreetmap_plugin_admin(&$a, &$o) {
153 $t = get_markup_template("admin.tpl", "addon/openstreetmap/");
154 $tmsserver = get_config('openstreetmap', 'tmsserver');
156 $tmsserver = 'http://www.openstreetmap.org';
157 $nomserver = get_config('openstreetmap', 'nomserver');
159 $nomserver = 'http://nominatim.openstreetmap.org/search.php';
160 $zoom = get_config('openstreetmap', 'zoom');
163 $marker = get_config('openstreetmap', 'marker');
167 $o = replace_macros($t, array(
168 '$submit' => t('Submit'),
169 '$tmsserver' => array('tmsserver', t('Tile Server URL'), $tmsserver, t('A list of <a href="http://wiki.openstreetmap.org/wiki/TMS" target="_blank">public tile servers</a>')),
170 '$nomserver' => array('nomserver', t('Nominatim (reverse geocoding) Server URL'), $nomserver, t('A list of <a href="http://wiki.openstreetmap.org/wiki/Nominatim" target="_blank">Nominatim servers</a>')),
171 '$zoom' => array('zoom', t('Default zoom'), $zoom, t('The default zoom level. (1:world, 18:highest, also depends on tile server)')),
172 '$marker' => array('marker', t('Include marker on map'), $marker, t('Include a marker on the map.')),
175 function openstreetmap_plugin_admin_post(&$a) {
176 $urltms = ((x($_POST, 'tmsserver')) ? notags(trim($_POST['tmsserver'])) : '');
177 $urlnom = ((x($_POST, 'nomserver')) ? notags(trim($_POST['nomserver'])) : '');
178 $zoom = ((x($_POST, 'zoom')) ? intval(trim($_POST['zoom'])) : '16');
179 $marker = ((x($_POST, 'marker')) ? intval(trim($_POST['marker'])) : '0');
180 set_config('openstreetmap', 'tmsserver', $urltms);
181 set_config('openstreetmap', 'nomserver', $urlnom);
182 set_config('openstreetmap', 'zoom', $zoom);
183 set_config('openstreetmap', 'marker', $marker);
184 info( t('Settings updated.') . EOL);