element of the map.
+This way, an extra request is avoided. The geojson format used here consists of a single
+"FeatureCollection" (representing the ) containing the sub-elements of wrmap
+as features.
+The features have an properties key that has a hash as values with the properties of
+the XML subelements of wrmap. Optional attributes/properties can be omitted.
+Additionally one mandatory property key is called 'type' and has the sub-element's name
+as value.
+The featurecollection itself has a properties key as well containing the attributes of
+the wrmap element.
+*/
-// Global JavaScript functions
-define(WRGMAPJSFUNCTIONS, <<
-//" + name+ "");});
- return marker;
+// The following two classes are "duplicated" from the wrreport extension to keep them separate.
+// Put improvements in both classes.
+class WrMapDOMDocument extends DOMDocument {
+ function __construct() {
+ parent::__construct('1.0', 'utf-8');
+ $this->registerNodeClass('DOMElement', 'WrMapDOMElement');
+ }
+
+ /// Creates and adds the element with the given tag name and returns it.
+ /// Additionally, it calls setAttribute($key, $value) for every entry
+ /// in $attributes.
+ function appendElement($tagName, $attributes=array()) {
+ $child = $this->appendChild($this->createElement($tagName));
+ foreach ($attributes as $key => $value) $child->setAttribute($key, $value);
+ return $child;
+ }
}
-//]]>
-
-JAVASCRIPT
-);
-
-
-/** This class was inpired by the GoogleMaps class of the GoogleMaps extension. */
-class WrGoogleMaps {
- /// the Google API key (obtained from
- /// http://www.google.com/apis/maps/signup.html)
- private $apiKey = null;
-
- /// How many tags are on the current page?
- private $mapsCount = 0;
-
- /// Constructor
- function WrGoogleMaps($apiKey) {
- $this->apiKey = $apiKey;
+
+
+class WrMapDOMElement extends DOMElement {
+
+ /// Creates and adds the element with the given tag name and returns it
+ /// Additionally, it calls setAttribute($key, $value) for every entry
+ /// in $attributes.
+ function appendElement($tagName, $attributes=array()) {
+ $child = $this->appendChild($this->ownerDocument->createElement($tagName));
+ foreach ($attributes as $key => $value) $child->setAttribute($key, $value);
+ return $child;
+ }
+
+ /// Adds any UTF-8 string as content of the element - it will be escaped.
+ function appendText($text) {
+ return $this->appendChild($this->ownerDocument->createTextNode($text));
+ }
+
+ // Appends a CDATASections to the element. This can be used to include
+ // raw (unparsed) HTML to the DOM tree as it is necessary because
+ // $parser->recursiveTagParse does not always escape & characters.
+ // (see https://bugzilla.wikimedia.org/show_bug.cgi?id=55526 )
+ // Workaround: Use a CDATA section. When serializing with $doc->saveHTML,
+ // the is returned as ... .
+ // However, we end up having unescaped & in the output due to this bug in recursiveTagParse.
+ function appendCDATA($data) {
+ return $this->appendChild($this->ownerDocument->createCDATASection($data));
+ }
+}
+
+
+// WrBaseMap
+// ---------
+
+class WrBaseMap {
+ // gets coordinates and returns an array of lon/lat coordinate pairs, e.g.
+ // 47.12 N 11.87 E
+ // 47.13 N 11.70 E
+ // ->
+ // array(array(11.87, 47.12), array(11.70, 47.13))
+ public static function geo_to_coordinates($input) {
+ $matches = array();
+ $num_matches = preg_match_all('/\s*(\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][$i]));
+ }
+ if (implode($matches[0]) != $input) throw new Exception(wfMessage('wrmap-error-coordinate-format', $input)->text());
+ return $result;
+ }
+
+
+ /// Takes a page title from the wiki and returns an image (if available)
+ /// or Null. For image wiki pages, the image is the corresponding image,
+ /// for inns it's the image of the "Gasthausbox".
+ public static function wikipage_to_image($title, $width) {
+ $file = false; // File class or false
+ // for NS_FILE titles, use the corresponding file as image
+ if ($title->getNamespace() == NS_FILE) {
+ $file = wfFindFile($title); // $file is a mediawiki File class or false
+ } else {
+ $categories = $title->getParentCategories(); // e.g. array('Kategorie:Rodelbahn' => 'Juifenalm')
+ global $wgContLang;
+ $key_sledrun = $wgContLang->getNSText(NS_CATEGORY) . ':Rodelbahn';
+ if (array_key_exists($key_sledrun, $categories)) {
+ // for sledrun titles use the image from the rodelbahnbox
+ $dbr = wfGetDB(DB_SLAVE);
+ $res = $dbr->select('wrsledruncache', 'image', array('page_id' => $title->getArticleID()), __METHOD__);
+ $image = $dbr->fetchRow($res);
+ if ($image && !is_null($image['image'])) $file = wfFindFile($image['image']);
+ $dbr->freeResult($res);
+ }
+ $key_inn = $wgContLang->getNSText(NS_CATEGORY) . ':Gasthaus';
+ if (array_key_exists($key_inn, $categories)) {
+ // for inn titles use the image from the gasthausbox
+ $dbr = wfGetDB(DB_SLAVE);
+ $res = $dbr->select('wrinncache', 'image', array('page_id' => $title->getArticleID()), __METHOD__);
+ $image = $dbr->fetchRow($res);
+ if ($image && !is_null($image['image'])) $file = wfFindFile($image['image']);
+ $dbr->freeResult($res);
+ }
+ }
+ if ($file === false) return Null;
+ if (!$file->canRender()) return Null;
+ $thumb_url = $file->createThumb($width, $width); // limit width and hight to $width
+ if (strlen($thumb_url) == 0) return Null;
+ return $thumb_url;
+ }
+
+
+ // convert sledruns to geojson (http://www.geojson.org/geojson-spec.html)
+ // Returns an array of features
+ public static 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['date_report'] = $sledrun['date_report'];
+ if (!is_null($sledrun['condition'])) $properties['condition'] = intval($sledrun['condition']);
+ $image_url = WrBaseMap::wikipage_to_image($title, 150);
+ if (!is_null($image_url)) $properties['thumb_url'] = $image_url;
+ $json_feature = array(
+ 'type' => 'Feature',
+ 'geometry' => array(
+ 'type' => 'Point',
+ 'coordinates' => array($lon, $lat)
+ ),
+ 'properties' => $properties
+ );
+ $json_features[] = $json_feature;
+ }
+ $dbr->freeResult($res);
+ return $json_features;
}
-
- /// Renders the tag
+
+
+ // convert XML to geojson (http://www.geojson.org/geojson-spec.html)
+ // Returns an array of features
+ public static function xml_to_json_features($input) {
+ libxml_use_internal_errors(true); // without that, we get PHP Warnings if the $input is not well-formed
+ $xml = new SimpleXMLElement($input); // input
+ $whitespace = (string) $xml; // everything between and that's not a sub-element
+ if (strlen($whitespace) > 0 && !ctype_space($whitespace)) { // there must not be anythin except sub-elements or whitespace
+ throw new Exception(wfMessage('wrmap-error-invalid-text', trim($xml))->text());
+ }
+ $json_features = array(); // output
+ $point_types = array('gasthaus', 'haltestelle', 'parkplatz', 'achtung', 'foto', 'verleih', 'punkt');
+ $line_types = array('rodelbahn', 'gehweg', 'alternative', 'lift', 'anfahrt', 'linie');
+ foreach ($xml as $feature) {
+ $given_properties = array();
+ foreach ($feature->attributes() as $key => $value) $given_properties[] = $key;
+
+ // determine feature type
+ $is_point = in_array($feature->getName(), $point_types);
+ $is_line = in_array($feature->getName(), $line_types);
+ if (!$is_point && !$is_line) {
+ throw new Exception(wfMessage('wrmap-error-invalid-element', $feature->getName(), '<' . implode('>, <', array_merge($point_types, $line_types)) . '>')->text());
+ }
+
+ // point
+ if ($is_point) {
+ $properties = array('type' => $feature->getName());
+ $allowed_properties = array('name', 'wiki');
+ $wrong_properties = array_diff($given_properties, $allowed_properties);
+ if (count($wrong_properties) > 0) throw new Exception(wfMessage('wrmap-error-invalid-attribute', reset($wrong_properties), $feature->getName(), "'" . implode("', '", $allowed_properties) . "'")->text());
+ foreach ($given_properties as $property) {
+ $propval = (string) $feature[$property];
+ if ($property == 'wiki') {
+ $title = Title::newFromText($propval);
+ $propval = $title->getLocalUrl();
+ $file_url = WrBaseMap::wikipage_to_image($title, 200);
+ if (!is_null($file_url)) $properties['thumb_url'] = $file_url;
+ }
+ $properties[$property] = $propval;
+ }
+ $coordinates = WrBaseMap::geo_to_coordinates($feature);
+ if (count($coordinates) != 1) throw new Exception(wfMessage('wrmap-error-coordinate-count', $feature->getName())->text());
+ $json_feature = array(
+ 'type' => 'Feature',
+ 'geometry' => array(
+ 'type' => 'Point',
+ 'coordinates' => reset($coordinates)
+ ),
+ 'properties' => $properties
+ );
+ $json_features[] = $json_feature;
+ }
+ // line
+ if ($is_line) {
+ $properties = array('type' => $feature->getName());
+ $allowed_properties = array('farbe', 'dicke');
+ $wrong_properties = array_diff($given_properties, $allowed_properties);
+ if (count($wrong_properties) > 0) throw new Exception(wfMessage('wrmap-error-invalid-attribute', reset($wrong_properties), $feature->getName(), "'" . implode("', '", $allowed_properties) . "'")->text());
+ if (isset($feature['farbe'])) {
+ $color = (string) $feature['farbe']; // e.g. #a200b7
+ if (preg_match('/^#[0-9a-f]{6}$/i', $color) != 1)
+ throw new Exception(wfMessage('wrmap-error-line-color')->text());
+ $properties['strokeColor'] = $color;
+ }
+ if (isset($feature['dicke'])) {
+ $stroke_width = (int) $feature['dicke']; // e.g. 6
+ if (((string) $stroke_width) !== (string) $feature['dicke'])
+ throw new Exception(wfMessage('wrmap-error-line-width')->text());
+ $properties['strokeWidth'] = $stroke_width;
+ }
+ $json_feature = array(
+ 'type' => 'Feature',
+ 'geometry' => array(
+ 'type' => 'LineString',
+ 'coordinates' => WrBaseMap::geo_to_coordinates($feature)
+ ),
+ 'properties' => $properties
+ );
+ $json_features[] = $json_feature;
+ }
+ }
+ return $json_features;
+ }
+
+
+ /// Renders the tag and the tag.
+ /// The WrBaseMap class would be the only class needed but as the function render() does 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 tag
/// @param $args array - the array of attribute name/value pairs for the tag
/// @param $parser Parser - the MW Parser object for the current page
///
/// @return string - the html for rendering the map
- function render($content, $args, &$parser) {
- ++$this->mapsCount;
-
- // Decode data
- if (isset($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
- $staticSizeX = 600;
- $staticSizeY = 450;
- $latitude_s = sprintf('%.6F', $latitude);
- $longitude_s = sprintf('%.6F', $longitude);
-
- // Query database
- $dbr = wfGetDB(DB_SLAVE);
- $res = $dbr->select('wrsleddingcache', array('page_title', 'position_latitude', 'position_longitude'), array('show_in_overview', 'not under_construction'));
- $sleddingRoutes = array();
- while ($sleddingRoute = $dbr->fetchRow($res)) $sleddingRoutes[] = $sleddingRoute;
- $dbr->freeResult($res);
-
- // Load Google Maps Script and define functions
- $output = '';
- if ($this->mapsCount == 1) {
- $output .= '' . "\n";
- $output .= WRGMAPJSFUNCTIONS;
- }
-
- // Create static map image link
- $staticLink = "http://maps.google.com/staticmap?center=$latitude_s,$longitude_s&zoom=$zoom&size=${staticSizeX}x$staticSizeY&key=$this->apiKey";
- $staticMarkers = array();
- foreach ($sleddingRoutes as $s) {
- $lat = $s['position_latitude']; // this is a string
- $lon = $s['position_longitude']; // this is a string
- $staticMarkers[] = sprintf('%s,%s,bluer', $lat, $lon);
+ public static function render($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')));
+
+ $parserOutput = $parser->getOutput();
+ $parserOutput->addHeadItem('', 'openlayers_js');
+ $parserOutput->addHeadItem('', 'openlayers_css');
+ $parserOutput->addModules('ext.wrmap');
+
+ // append all sledruns as icon
+ $json_features = array();
+ $show_sledruns = ($tagname == 'wrgmap');
+ if ($show_sledruns) {
+ $json_features = array_merge($json_features, WrBaseMap::sledruns_to_json_features());
}
- if (count($staticMarkers) > 0) $staticLink .= '&markers=' . implode('|', $staticMarkers);
- // Create element where the map is placed in
- $mapName = 'wrgmap' . $this->mapsCount;
- $output .= '';
-
- // Return output
- $output .= '\n";
- $output .= ' . )
\n";
- return wrCommonReplaceByMarker($output, 'wrmap');
+ // create final geojson
+ $json = array(
+ 'type' => 'FeatureCollection',
+ 'features' => $json_features,
+ 'properties' => $properties
+ );
+ $json_string = json_encode($json);
+
+ // Create element where the map is placed in
+ global $wgExtensionAssetsPath;
+ $doc = new WrMapDOMDocument();
+ $div_map = $doc->appendElement('div', array('class' => 'wrmap', 'style' => 'border-style:none;', 'data-ext-path' => "$wgExtensionAssetsPath/wrmap"));
+ // progress message
+ $div_map->appendElement('div', array())->appendText(wfMessage('wrmap-loading')->text());
+ // data
+ $div_map->appendElement('div', array('style' => 'height: 0px; display:none;'))->appendText($json_string);
+ // popup
+ $div_popup = $doc->appendElement('div', array('id' => 'popup', 'class' => 'ol-popup'));
+ $div_popup->appendElement('a', array('id' => 'popup-closer', 'href' => '#', 'class' => 'ol-popup-closer'));
+ $div_popup->appendElement('div', array('id' => 'popup-content'));
+ return array($doc->saveHTML($div_map) . $doc->saveHTML($div_popup), 'markerType' => 'nowiki');
}
-
- // returns a string that creates a map object called 'map'
- // $latitude, $longitude and $zoom have to be float/integer values.
- private function addMap($mapName, $latitude, $longitude, $zoom) {
- return "\tvar map = new GMap2(document.getElementById('$mapName'), {'mapTypes': [G_NORMAL_MAP, G_HYBRID_MAP, G_PHYSICAL_MAP, G_SATELLITE_MAP]});\n" .
- "\tmap.addControl(new GLargeMapControl());\n" .
- "\tmap.addControl(new GMapTypeControl());\n" .
- "\tmap.addControl(new GScaleControl());\n" .
- sprintf("\tmap.setCenter(new GLatLng(%.6F, %.6F), %d);\n", $latitude, $longitude, $zoom) .
- "\tmap.setMapType(G_PHYSICAL_MAP);\n";
- // "\tmap.enableScrollWheelZoom();\n";
+
+
+ public static function onEnableMobileModules($out, $mode) {
+ $out->addModules('ext.wrmap.mobile');
+ return true;
}
+}
- // returns a string with a add marker javascript call
- // $latitude and $longitude are expected as string
- private function addJsMarker($latitude, $longitude, $pageTitle) {
- return "\tmap.addOverlay(wrCreateMarker($latitude, $longitude, \"" . htmlspecialchars(addslashes($pageTitle)) . "\", wrSleddingIcon));\n";
+
+// tag
+class WrMap extends WrBaseMap {
+ public static function onParserFirstCallInit(Parser $parser) {
+ $parser->setHook('wrmap', 'WrMap::render');
+ return true;
}
-
}
+// tag
+class WrGMap extends WrBaseMap {
+ public static function onParserFirstCallInit(Parser $parser) {
+ $parser->setHook('wrgmap', 'WrGMap::render');
+ return true;
+ }
+}
+
?>