<?php
-class WrMap {
- /// Renders the <wrgmap> tag
+// get value of key or default value if key does not exist
+// gets coordinates and returns an array of lon/lat coordinate pairs, e.g.
+// 47.12 N 11.87 E
+// 47.13 N 11.70 E
+// ->
+// array(array(11.87, 47.12), array(11.70, 47.13))
+function geo_to_coordinates($input) {
+ $matches = array();
+ $num_matches = preg_match_all('/(\d+\.?\d*)\s*N?\s+(\d+\.?\d*)\s*E?\s*/', $input, $matches);
+ $result = array();
+ for ($i=0; $i!=$num_matches; ++$i) {
+ $result[] = array(floatval($matches[2][$i]), floatval($matches[1][$i]));
+ }
+ return $result;
+}
+
+
+// convert sledruns to geojson (http://www.geojson.org/geojson-spec.html)
+// Returns an array of features
+function sledruns_to_json_features() {
+ $json_features = array(); // result
+ $dbr = wfGetDB(DB_SLAVE);
+ $res = $dbr->select(array('wrsledruncache', 'wrreportcache'), array('wrsledruncache.page_title', 'position_latitude', 'position_longitude', 'date_report', '`condition`'), array('show_in_overview', 'not under_construction'), __METHOD__, array(), array('wrreportcache' => array('left outer join', 'wrsledruncache.page_id=wrreportcache.page_id')));
+ while ($sledrun = $dbr->fetchRow($res)) {
+ $lat = $sledrun['position_latitude'];
+ $lon = $sledrun['position_longitude'];
+ if (is_null($lat) || is_null($lon)) continue;
+ $lat = floatval($lat);
+ $lon = floatval($lon);
+ $title = Title::newFromText($sledrun['page_title']);
+ $properties = array('type' => 'sledrun', 'name' => $title->getText(), 'wiki' => $title->getLocalUrl());
+ if (!is_null($sledrun['date_report'])) $properties[] = $sledrun['date_report'];
+ if (!is_null($sledrun['condition'])) $properties[] = intval($sledrun['condition']);
+ $json_feature = array(
+ 'type' => 'feature',
+ 'geometry' => array(
+ 'type' => 'Point',
+ 'coordinates' => array($lon, $lat)
+ ),
+ 'properties' => $properties
+ );
+ $json_features[] = $json_feature;
+ }
+ $dbr->freeResult($res);
+ return $json_features;
+}
+
+
+// convert XML to geojson (http://www.geojson.org/geojson-spec.html)
+// Returns an array of features
+// TODO: Error reporting
+function xml_to_json_features($input) {
+ libxml_use_internal_errors(true); // without that, we get PHP Warnings if the $input is not well-formed
+ $xml = new SimpleXMLElement($input); // input
+ $json_features = array(); // output
+ $point_type = array('gasthaus' => 'inn', 'haltestelle' => 'busstop', 'parkplatz' => 'carpark', 'achtung' => 'attention', 'punkt' => 'point');
+ $line_type = array('rodelbahn' => 'sledrun', 'gehweg' => 'walk', 'alternative' => 'alternative', 'lift' => 'lift', 'linie' => 'line');
+ foreach ($xml as $feature) {
+ // point
+ if (in_array($feature->getName(), array_keys($point_type))) {
+ $properties = array('type' => $point_type[$feature->getName()]);
+ if (array_key_exists('wiki', $feature)) $properties['wiki'] = $feature['wiki'];
+ if (array_key_exists('name', $feature)) $properties['name'] = $feature['name'];
+ $json_feature = array(
+ 'type' => 'feature',
+ 'geometry' => array(
+ 'type' => 'Point',
+ 'coordinates' => geo_to_coordinates($feature)[0]
+ ),
+ 'properties' => $properties
+ );
+ $json_features[] = $json_feature;
+ }
+ // line
+ if (in_array($feature->getName(), array_keys($line_type))) {
+ $properties = array('type' => $line_type[$feature->getName()]);
+ if (array_key_exists('farbe', $feature)) $properties['strokeColor'] = $feature['farbe'];
+ if (array_key_exists('dicke', $feature)) $properties['strokeWidth'] = $feature['dicke'];
+ $json_feature = array(
+ 'type' => 'feature',
+ 'geometry' => array(
+ 'type' => 'LineString',
+ 'coordinates' => geo_to_coordinates($feature)
+ ),
+ 'properties' => $properties
+ );
+ $json_features[] = $json_feature;
+ }
+ }
+ return $json_features;
+}
+
+
+
+class WrBaseMap {
+ /// Renders the <wrgmap> tag and the <wrmap> tag.
+ /// This class would be the only class needed but as the function render() toes not provide an argument
+ /// telling which tag name called the function, a trick with two inherited classes has to be used.
/// @param $content string - the content of the <wrgmap> tag
/// @param $args array - the array of attribute name/value pairs for the tag
/// @param $parser Parser - the MW Parser object for the current page
///
/// @return string - the html for rendering the map
public static function render($content, $args, $parser, $frame) {
+ // Unfortunately, $tagname is no argument of this function, therefore we have to use a trick with derived classes.
+ $tagname = strtolower(get_called_class()); // either wrmap or wrgmap
+ assert(in_array($tagname, array('wrmap', 'wrgmap')));
+
// Get center and zoom level from $args
if (isset($args['lat'])) $latitude = floatval($args['lat']); else $latitude = 47.267648; // latitude as float value
if (isset($args['lon'])) $longitude = floatval($args['lon']); else $longitude = 11.404655; // longitude as float value
if (isset($args['zoom'])) $zoom = intval($args['zoom']); else $zoom = 10; // Google Zoom Level
+ if (isset($args['width'])) $width = intval($args['width']); else $width = null; // null corresponds to 100%
+ if (isset($args['height'])) $height = intval($args['height']); else $height = 450;
$latitude_s = sprintf('%.6F', $latitude);
$longitude_s = sprintf('%.6F', $longitude);
+ $width_s = is_null($width) ? '100%' : $width . 'px';
+ $height_s = $height . 'px';
+ $show_sledruns = ($tagname == 'wrgmap');
- // Query database
- $dbr = wfGetDB(DB_SLAVE);
- $res = $dbr->select('wrsledruncache', array('page_title', 'position_latitude', 'position_longitude'), array('show_in_overview', 'not under_construction'));
- $sledruns = array();
- while ($sledrun = $dbr->fetchRow($res)) $sledruns[] = $sledrun;
- $dbr->freeResult($res);
-
$parserOutput = $parser->getOutput();
$parserOutput->addHeadItem('<script type="text/javascript" src="http://maps.google.com/maps/api/js?v=3.8&sensor=false"></script>', 'googlemaps');
$parserOutput->addModules('ext.wrmap');
+ $json_features = array();
+
+ // append all sledruns as icon
+ if ($show_sledruns) {
+ $json_features = array_merge($json_features, sledruns_to_json_features());
+ }
+
+ // append all elements in the XML
+ try {
+ $json_features = array_merge($json_features, xml_to_json_features('<wrmap>' . $content . '</wrmap>'));
+ } catch (Exception $e) {
+ return htmlspecialchars($e);
+ }
+
+ // create final geojson
+ $json = array(
+ 'type' => 'FeatureCollection',
+ 'features' => $json_features
+ );
+ $json_string = json_encode($json);
+
// Create <div/> element where the map is placed in
global $wgExtensionAssetsPath;
- $output = "<div class=\"wrmap\" style=\"width: 100%; height: 450px; border-style:none;\" data-center-lon=\"$longitude_s\" data-center-lat=\"$latitude_s\" data-zoom=\"$zoom\" data-img-path=\"$wgExtensionAssetsPath/wrmap/openlayers/img/\">\n";
- foreach ($sledruns as $sledrun) {
- $lat = $sledrun['position_latitude'];
- $lon = $sledrun['position_longitude'];
- if (!$lat || !$lon) continue;
- $title = Title::newFromText($sledrun['page_title']);
- $output .= "<p data-lon=\"$lon\" data-lat=\"$lat\" data-title=\"{$title->getText()}\" data-url=\"{$title->getLocalUrl()}\" />\n";
- }
+ $output = "<div class=\"wrmap\" style=\"width: $width_s; height: $height_s; border-style:none;\" data-center-lon=\"$longitude_s\" data-center-lat=\"$latitude_s\" data-zoom=\"$zoom\" data-img-path=\"$wgExtensionAssetsPath/wrmap/openlayers/img/\">";
+ $output .= "<script type=\"application/json\">";
+ $output .= htmlspecialchars($json_string, ENT_NOQUOTES);
+ $output .= "</script>";
$output .= "</div>\n";
return $output;
}
+}
+
+// <wrmap> tag
+class WrMap extends WrBaseMap {
}
+// <wrgmap> tag
+class WrGMap extends WrBaseMap {
+}
+
?>
ToastFreeware / philipp / winterrodeln / mediawiki_extensions / wrmap.git / blobdiff