SemanticMaps/includes/SM_GeoCoordsHooks.php

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<?php

final class SMGeoCoordsHooks {

        public static function addGeoCoordsDefaultFormat( &$format, array $printRequests, array $params ) {
                // Only set the format when not set yet. This allows other extensions to override the Semantic Maps behaviour. 
                if ( $format === false ) {
                        // Only apply when there is more then one print request.
                        // This way requests comming from #show are ignored. 
                        if ( count( $printRequests ) > 1 ) {
                                $allValid = true;
                                $hasCoords = false;
                                
                                // Loop through the print requests to determine their types.
                                foreach( $printRequests as /* SMWPrintRequest */ $printRequest ) {
                                        // Skip the first request, as it's the object.
                                        if ( $printRequest->getMode() == SMWPrintRequest::PRINT_THIS ) {
                                                continue;
                                        }
                                        
                                        $typeId = $printRequest->getTypeID();
                                        
                                        if ( $typeId == '_geo' ) {
                                                $hasCoords = true;
                                        }
                                        else {
                                                $allValid = false;
                                                break;
                                        }
                                }
        
                                // If they are all coordinates, set the result format to 'map'.
                                if ( $allValid && $hasCoords ) {
                                        $format = 'map';
                                }                               
                        }

                }
                
                return true;
        }
        
        public static function initGeoCoordsType() {
                SMWDataValueFactory::registerDatatype( '_geo', 'SMGeoCoordsValue', SMWDataItem::TYPE_GEO );
                return true;
        }
        
}

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