<?php
-class WrMap {
- /// Renders the <wrgmap> tag
+// DOM helper classes
+// ------------------
+
+// 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 $child;
+ }
+
+}
+class WrMapDOMElement extends DOMElement {
+
+ /// Creates and adds the element with the given tag name and returns it
+ /// Additionally, it calls setAttribute($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 $doc->saveHTML,
+ // the <![CDATA[...]]> is returned as ... .
+ // However, we end up having unescaped & in the output due to this bug in recursiveTagParse.
+ function appendCDATA($data) {
+ return $this->appendChild($this->ownerDocument->createCDATASection($data));
+ }
+}
+
+
+// gets coordinates and returns an array of lon/lat coordinate pairs, e.g.
+// 47.12 N 11.87 E
+// 47.13 N 11.70 E
+// ->
+// array(array(11.87, 47.12), array(11.70, 47.13))
+function geo_to_coordinates($input) {
+ $matches = array();
+ $num_matches = preg_match_all('/\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('Falsches Koordinatenformat: ' . $input);
+ 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['date_report'] = $sledrun['date_report'];
+ if (!is_null($sledrun['condition'])) $properties['condition'] = intval($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 $json_features;
+}
+
+
+// convert XML to geojson (http://www.geojson.org/geojson-spec.html)
+// Returns an array of features
+function xml_to_json_features($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) $xml; // everything between <wrmap> and </wrmap> that's not a sub-element
+ if (strlen($whitespace) > 0 && !ctype_space($whitespace)) { // there must not be anythin except sub-elements or whitespace
+ throw new Exception('Die Landkarte enthält folgenden ungültigen Text: "' . trim($xml) . '".');
+ }
+ $json_features = array(); // output
+ $point_types = array('gasthaus', 'haltestelle', 'parkplatz', 'achtung', '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('Unbekanntes Element <' . $feature->getName() . '>. Erlaubt sind: <' . implode('>, <', array_merge($point_types, $line_types)) . '>.');
+ }
+
+ // point
+ if ($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("Das Attribut '" . reset($wrong_properties) . "' ist nicht erlaubt bei <" . $feature->getName() . ">. Erlaubt sind: '" . implode("', '", $allowed_properties) . "'.");
+ foreach ($given_properties as $property) {
+ $propval = (string) $feature[$property];
+ if ($property == 'wiki') {
+ $title = Title::newFromText($propval);
+ $propval = $title->getLocalUrl();
+ }
+ $properties[$property] = $propval;
+ }
+ $coordinates = geo_to_coordinates($feature);
+ if (count($coordinates) != 1) throw new Exception('Das Element <' . $feature->getName() . '> muss genau ein Koordinatenpaar haben.');
+ $json_feature = array(
+ 'type' => 'feature',
+ 'geometry' => array(
+ 'type' => 'Point',
+ 'coordinates' => reset($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("Das Attribut '" . reset($wrong_properties) . "' ist nicht erlaubt bei <" . $feature->getName() . ">. Erlaubt sind: '" . implode("', '", $allowed_properties) . "'.");
+ if (isset($feature['farbe'])) {
+ $color = (string) $feature['farbe']; // e.g. #a200b7
+ if (preg_match('/^#[0-9a-f]{6}$/i', $color) != 1)
+ throw new Exception('Die Farbangabe der Linie hat ein falsches Format. Sie muss z.B. so aussehen: #a200b7.');
+ $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('Die Angabe der Liniendicke hat ein falsches Format. Sie muss eine ganze Zahl wie z.B. 6 sein.');
+ $properties['strokeWidth'] = $stroke_width;
+ }
+ $json_feature = array(
+ 'type' => 'feature',
+ 'geometry' => array(
+ 'type' => 'LineString',
+ 'coordinates' => geo_to_coordinates($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) {
- // 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
- $latitude_s = sprintf('%.6F', $latitude);
- $longitude_s = sprintf('%.6F', $longitude);
-
- // Query database
- $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')));
- $sledruns = array();
- while ($sledrun = $dbr->fetchRow($res)) $sledruns[] = $sledrun;
- $dbr->freeResult($res);
-
+ // 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('<script type="text/javascript" src="http://maps.google.com/maps/api/js?v=3.8&sensor=false"></script>', 'googlemaps');
$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, sledruns_to_json_features());
+ }
+
+ try {
+ // map properties
+ $properties = array();
+ if (isset($args['lat'])) $properties['lat'] = (float) $args['lat']; // latitude as float value
+ if (isset($args['lon'])) $properties['lon'] = (float) $args['lon']; // longitude as float value
+ if (isset($args['zoom'])) $properties['zoom'] = (int) $args['zoom']; // zoom as int value
+ if (isset($args['width'])) $properties['width'] = (int) $args['width']; // width as int value
+ if (isset($args['height'])) $properties['height'] = (int) $args['height']; // height as int value
+
+ // append all elements in the XML
+ $json_features = array_merge($json_features, xml_to_json_features('<wrmap>' . $content . '</wrmap>'));
+ } catch (Exception $e) {
+ $doc = new WrMapDOMDocument();
+ $doc->appendElement('div', array('class' => 'error'))->appendText('Fehler beim Parsen der Landkarte: ' . $e->getMessage());
+ return array($doc->saveHTML($doc->firstChild), 'markerType' => 'nowiki');
+ }
+
+ // create final geojson
+ $json = array(
+ 'type' => 'FeatureCollection',
+ 'features' => $json_features,
+ 'properties' => $properties
+ );
+ $json_string = json_encode($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']);
- $title_text = htmlspecialchars($title->getText());
- $title_url = htmlspecialchars($title->getLocalUrl());
- $output .= "<p data-lon=\"$lon\" data-lat=\"$lat\" data-title=\"$title_text\" data-url=\"$title_url\" ";
- if (!is_null($sledrun['date_report'])) $output .= "data-date_report=\"{$sledrun['date_report']}\" ";
- if (!is_null($sledrun['condition'])) $output .= "data-condition=\"{$sledrun['condition']}\" ";
- $output .= "/>\n";
- }
- $output .= "</div>\n";
-
- return $output;
+ $doc = new WrMapDOMDocument();
+ $doc->appendElement('div', array('class' => 'wrmap', 'style' => 'border-style:none;', 'data-img-path' => "$wgExtensionAssetsPath/wrmap/openlayers/img/"))->appendText($json_string);
+ return array($doc->saveHTML($doc->firstChild), 'markerType' => 'nowiki');
}
+}
+
+// <wrmap> tag
+class WrMap extends WrBaseMap {
}
+// <wrgmap> tag
+class WrGMap extends WrBaseMap {
+}
+
?>
ToastFreeware / philipp / winterrodeln / mediawiki_extensions / wrmap.git / blobdiff