1 files changed, 182 insertions, 0 deletions
diff --git a/www/wiki/extensions/Maps/src/MediaWiki/ParserHooks/DisplayMapRenderer.php b/www/wiki/extensions/Maps/src/MediaWiki/ParserHooks/DisplayMapRenderer.php
new file mode 100644
index 00000000..8c757acd
--- /dev/null
+++ b/www/wiki/extensions/Maps/src/MediaWiki/ParserHooks/DisplayMapRenderer.php
@@ -0,0 +1,182 @@
+<?php
+
+namespace Maps\MediaWiki\ParserHooks;
+
+use FormatJson;
+use Html;
+use Maps\DataAccess\MediaWikiFileUrlFinder;
+use Maps\Elements\Location;
+use Maps\MappingService;
+use Maps\Presentation\ElementJsonSerializer;
+use Maps\Presentation\MapHtmlBuilder;
+use Maps\Presentation\WikitextParser;
+use Maps\Presentation\WikitextParsers\LocationParser;
+use Parser;
+
+/**
+ * Class handling the #display_map rendering.
+ *
+ * @licence GNU GPL v2+
+ * @author Jeroen De Dauw < jeroendedauw@gmail.com >
+ * @author Kim Eik
+ */
+class DisplayMapRenderer {
+
+	public $service;
+
+	/**
+	 * @var LocationParser
+	 */
+	private $locationParser;
+
+	/**
+	 * @var MediaWikiFileUrlFinder
+	 */
+	private $fileUrlFinder;
+
+	/**
+	 * @var WikitextParser
+	 */
+	private $wikitextParser;
+	/**
+	 * @var ElementJsonSerializer
+	 */
+	private $elementSerializer;
+
+	public function __construct( MappingService $service = null ) {
+		$this->service = $service;
+	}
+
+	/**
+	 * Handles the request from the parser hook by doing the work that's common for all
+	 * mapping services, calling the specific methods and finally returning the resulting output.
+	 *
+	 * @param array $params
+	 * @param Parser $parser
+	 *
+	 * @return string
+	 */
+	public final function renderMap( array $params, Parser $parser ) {
+		$factory = \Maps\MapsFactory::newDefault();
+
+		$this->locationParser = $factory->newLocationParser();
+		$this->fileUrlFinder = $factory->getFileUrlFinder();
+
+		$this->wikitextParser = new WikitextParser( clone $parser );
+		$this->elementSerializer = new ElementJsonSerializer( $this->wikitextParser );
+
+		$this->handleMarkerData( $params );
+
+		$output = ( new MapHtmlBuilder() )->getMapHTML(
+			$params,
+			$this->service->newMapId(),
+			$this->service->getName()
+		);
+
+		$dependencies = $this->service->getDependencyHtml( $params );
+
+		// Only add a head item when there are dependencies.
+		if ( $dependencies ) {
+			$parser->getOutput()->addHeadItem( $dependencies );
+		}
+
+		$parser->getOutput()->addModules( $this->service->getResourceModules() );
+
+		return $output;
+	}
+
+	/**
+	 * Converts the data in the coordinates parameter to JSON-ready objects.
+	 * These get stored in the locations parameter, and the coordinates on gets deleted.
+	 */
+	private function handleMarkerData( array &$params ) {
+		$params['centre'] = $this->getCenter( $params['centre'] );
+
+		if ( is_object( $params['wmsoverlay'] ) ) {
+			$params['wmsoverlay'] = $params['wmsoverlay']->getJSONObject();
+		}
+
+		$params['locations'] = $this->getLocationJson( $params );
+
+		unset( $params['coordinates'] );
+
+		$this->handleShapeData( $params );
+	}
+
+	private function getCenter( $coordinatesOrAddress ) {
+		if ( $coordinatesOrAddress === false ) {
+			return false;
+		}
+
+		try {
+			// FIXME: a Location makes no sense here, since the non-coordinate data is not used
+			$location = $this->locationParser->parse( $coordinatesOrAddress );
+		}
+		catch ( \Exception $ex ) {
+			// TODO: somehow report this to the user
+			return false;
+		}
+
+		return $location->getJSONObject();
+	}
+
+	private function getLocationJson( array $params ) {
+		$iconUrl = $this->fileUrlFinder->getUrlForFileName( $params['icon'] );
+		$visitedIconUrl = $this->fileUrlFinder->getUrlForFileName( $params['visitedicon'] );
+
+		$locationJsonObjects = [];
+
+		foreach ( $params['coordinates'] as $coordinatesOrAddress ) {
+			try {
+				$location = $this->locationParser->parse( $coordinatesOrAddress );
+			}
+			catch ( \Exception $ex ) {
+				// TODO: somehow report this to the user
+				continue;
+			}
+
+			$locationJsonObjects[] = $this->getLocationJsonObject(
+				$location,
+				$params,
+				$iconUrl,
+				$visitedIconUrl
+			);
+		}
+
+		return $locationJsonObjects;
+	}
+
+	private function getLocationJsonObject( Location $location, array $params, $iconUrl, $visitedIconUrl ) {
+		$jsonObj = $location->getJSONObject( $params['title'], $params['label'], $iconUrl, '', '', $visitedIconUrl );
+
+		$this->elementSerializer->titleAndText( $jsonObj );
+
+		if ( isset( $jsonObj['inlineLabel'] ) ) {
+			$jsonObj['inlineLabel'] = strip_tags(
+				$this->wikitextParser->wikitextToHtml( $jsonObj['inlineLabel'] ),
+				'<a><img>'
+			);
+		}
+
+		return $jsonObj;
+	}
+
+	private function handleShapeData( array &$params ) {
+		$textContainers = [
+			&$params['lines'],
+			&$params['polygons'],
+			&$params['circles'],
+			&$params['rectangles'],
+			&$params['imageoverlays'], // FIXME: this is Google Maps specific!!
+		];
+
+		foreach ( $textContainers as &$textContainer ) {
+			if ( is_array( $textContainer ) ) {
+				foreach ( $textContainer as &$obj ) {
+					$obj = $this->elementSerializer->elementToJson( $obj );
+				}
+			}
+		}
+	}
+
+}