Add initial set of additional extensions

1 files changed, 468 insertions, 0 deletions

diff --git a/SemanticResultFormats/formats/Exhibit/SRF_Exhibit.php b/SemanticResultFormats/formats/Exhibit/SRF_Exhibit.php
new file mode 100644
index 00000000..86344dc4
--- /dev/null
+++ b/SemanticResultFormats/formats/Exhibit/SRF_Exhibit.php
@@ -0,0 +1,468 @@
+<?php
+/**
+ * Use Exhibit to print query results.
+ * @author Fabian Howahl
+ * @file
+ * @ingroup SMWQuery
+ */
+
+/**
+ * Result printer using Exhibit to display query results
+ *
+ * @ingroup SMWQuery
+ */
+class SRFExhibit extends SMWResultPrinter {
+	// /mapping between SMW's and Exhibit's the data types
+	protected $m_types = array( "_wpg" => "text", "_num" => "number", "_dat" => "date", "_geo" => "text", "_uri" => "url" );
+
+	protected static $exhibitRunningNumber = 0; // not sufficient since there might be multiple pages rendered within one PHP run; but good enough now
+
+	// /overwrite function to allow execution of result printer even if no results are available (in case remote query yields no results in local wiki)
+	public function getResult( $results, $params, $outputmode ) {
+		$this->readParameters( $params, $outputmode );
+		$result = $this->getResultText( $results, $outputmode );
+		return $result;
+	}
+
+	// /function aligns the format of SMW's property names to Exhibit's format
+	protected function encodePropertyName( $property ) {
+		return strtolower( str_replace( " ", "_", trim( $property ) ) );
+	}
+
+	// /Tries to determine the namespace in the event it got lost
+	protected function determineNamespace( $res ) {
+		$row = $res->getNext();
+		if ( $row != null ) {
+			$tmp = clone $row[0];
+			$object = $tmp->getNextDataValue();
+
+			if ( $object instanceof SMWWikiPageValue ) {
+				$value = $object->getPrefixedText();
+				if ( strpos( $value, ':' ) ) {
+					$value = explode( ':', $value, 2 );
+					return $value[0] . ':';
+				}
+			}
+		}
+
+		return "";
+	}
+
+	protected function getResultText( SMWQueryResult $res, $outputmode ) {
+
+		global $smwgIQRunningNumber, $wgScriptPath, $wgGoogleMapsKey, $srfgScriptPath;
+
+		if ( defined( 'MW_SUPPORTS_RESOURCE_MODULES' ) ) {
+			SMWOutputs::requireHeadItem( 'exhibit-compat', Html::linkedScript( "$wgScriptPath/common/wikibits.js" ) );
+		}
+		
+		// //////////////////////////////
+		// ///////REMOTE STUFF///////////
+		// //////////////////////////////
+
+		$remote = false;
+
+		// in case the remote parameter is set, a link to the JSON export of the remote wiki is included in the header as data source for Exhibit
+		// this section creates the link
+		if ( array_key_exists( 'remote', $this->m_params ) && srfgExhibitRemote == true ) {
+
+			$remote = true;
+
+			// fetch interwiki link
+			$dbr  = &wfGetDB( DB_SLAVE );
+			$cl   = $dbr->tableName( 'interwiki' );
+			$dbres  = $dbr->select( $cl, 'iw_url', "iw_prefix='" . $this->m_params['remote'] . "'", __METHOD__, array() );
+			$row = $dbr->fetchRow( $dbres );
+			$extlinkpattern = $row[iw_url];
+			$dbr->freeResult( $dbres );
+
+			$newheader = '<link rel="exhibit/data" type="application/jsonp" href="';
+			$link = $res->getQueryLink( 'JSON Link' );
+			$link->setParameter( 'json', 'format' );
+
+			if ( array_key_exists( 'callback', $this->m_params ) ) { // check if a special name for the callback function is set, if not stick with 'callback'
+				$callbackfunc = $this->m_params['callback'];
+			} else {
+				$callbackfunc = 'callback';
+			}
+
+			if ( array_key_exists( 'limit', $this->m_params ) ) {
+				$link->setParameter( $this->m_params['limit'], 'limit' );
+			}
+
+			$link->setParameter( $callbackfunc, 'callback' );
+			$link = $link->getText( 2, $this->mLinker );
+
+			list( $link, $trash ) = explode( '|', $link );
+			$link = str_replace( '[[:', '', $link );
+
+			$newheader .= str_replace( '$1', $link, $extlinkpattern );
+			$newheader .= '" ex:jsonp-callback="' . $callbackfunc . '"';
+			$newheader .= '/>';
+
+			SMWOutputs::requireHeadItem( 'REMOTE', $newheader );
+		}
+
+
+
+		// the following variables indicate the use of special views
+		// the variable's values define the way Exhibit is called
+		$timeline = false;
+		$map = false;
+
+
+		/*The javascript file adopted from Wibbit uses a bunch of javascript variables in the header to store information about the Exhibit markup.
+		 The following code sequence creates these variables*/
+
+		// prepare sources (the sources holds information about the table which contains the information)
+		$colstack = array();
+		foreach ( $res->getPrintRequests() as $pr ) {
+			$colstack[] = $this->encodePropertyName( $pr->getLabel() ) . ':' . ( array_key_exists( $pr->getTypeID(), $this->m_types ) ? $this->m_types[$pr->getTypeID()]:'text' ) ;
+		}
+		array_shift( $colstack );
+		array_unshift( $colstack, 'label' );
+
+		if ( SRFExhibit::$exhibitRunningNumber == 0 ) {
+			$sourcesrc = "var ex_sources = { source" . ( $smwgIQRunningNumber -1 ) . ": { id:  'querytable" . $smwgIQRunningNumber . "' , columns: '" . implode( ',', $colstack ) . "'.split(','), hideTable: '1', type: 'Item', label: 'Item', pluralLabel: 'Items' } };";
+		}
+		else {
+			$sourcesrc = "sources.source" . $smwgIQRunningNumber . " =  { id:  'querytable" . $smwgIQRunningNumber . "' , columns: '" . implode( ',', $colstack ) . "'.split(','), hideTable: '1', type: 'Item', label: 'Item', pluralLabel: 'Items' };";
+		}
+		$sourcesrc = "<script type=\"text/javascript\">" . $sourcesrc . "</script>";
+
+		// prepare facets
+		$facetcounter = 0;
+		if ( array_key_exists( 'facets', $this->m_params ) ) {
+			$facets = explode( ',', $this->m_params['facets'] );
+			$facetstack = array();
+			$params = array( 'height' );
+			$facparams = array();
+			foreach ( $params as $param ) {
+				if ( array_key_exists( $param, $this->m_params ) ) $facparams[] = 'ex:' . $param . '="' . $this->encodePropertyName( $this->m_params[$param] ) . '" ';
+			}
+			foreach ( $facets as $facet ) {
+				$facet = trim( $facet );
+				$fieldcounter = 0;
+				if ( strtolower( $facet ) == "search" ) { // special facet (text search)
+					$facetstack[] = ' facet' . $facetcounter++ . ': { position : "right", innerHTML: \'ex:role="facet" ex:showMissing="false" ex:facetClass="TextSearch" ex:facetLabel="' . $facet . '"\'}';
+				} else { // usual facet
+					foreach ( $res->getPrintRequests() as $pr ) {
+						if ( $this->encodePropertyName( $pr->getLabel() ) == $this->encodePropertyName( $facet ) ) {
+							switch( $pr->getTypeID() ) {
+								case '_num':
+									$facetstack[] = ' facet' . $facetcounter++ . ': { position : "right", innerHTML: \'ex:role="facet" ex:showMissing="false" ex:expression=".' . $this->encodePropertyName( $facet ) . '" ex:facetLabel="' . $facet . '" ex:facetClass="Slider"\'}';
+									break;
+								default:
+									$facetstack[] = ' facet' . $facetcounter++ . ': { position : "right", innerHTML: \'ex:role="facet" ex:showMissing="false" ' . implode( " ", $facparams ) . ' ex:expression=".' . $this->encodePropertyName( $facet ) . '" ex:facetLabel="' . $facet . '"\'}';
+							}
+						}
+
+					}
+				}
+				$fieldcounter++;
+			}
+			$facetstring = implode( ',', $facetstack );
+		}
+		else $facetstring = '';
+		$facetsrc = "var ex_facets = {" . $facetstring . " };";
+
+
+		// prepare views
+		$stylesrc = '';
+		$viewcounter = 0;
+		if ( array_key_exists( 'views', $this->m_params ) ) $views = explode( ',', $this->m_params['views'] );
+		else $views[] = 'tiles';
+
+		foreach ( $views as $view ) {
+			switch( trim( $view ) ) {
+				case 'tabular':// table view (the columns are automatically defined by the selected properties)
+					$thstack = array();
+					foreach ( $res->getPrintRequests() as $pr ) {
+						$thstack[] = "." . $this->encodePropertyName( $pr->getLabel() );
+					}
+					array_shift( $thstack );
+					array_unshift( $thstack, '.label' );
+					$stylesrc = 'var myStyler = function(table, database) {table.className=\'smwtable\';};'; // assign SMWtable CSS to Exhibit tabular view
+					$viewstack[] = 'ex:role=\'view\' ex:viewClass=\'Tabular\' ex:showSummary=\'false\' ex:sortAscending=\'true\' ex:tableStyler=\'myStyler\'  ex:label=\'Table\' ex:columns=\'' . implode( ',', $thstack ) . '\' ex:sortAscending=\'false\'' ;
+					break;
+				case 'timeline':// timeline view
+					$timeline = true;
+					$exparams = array( 'start', 'end', 'proxy', 'colorkey' ); // parameters expecting an Exhibit graph expression
+					$usparams = array( 'timelineheight', 'topbandheight', 'bottombandheight', 'bottombandunit', 'topbandunit' ); // parametes expecting a textual or numeric value
+					$tlparams = array();
+					foreach ( $exparams as $param ) {
+						if ( array_key_exists( $param, $this->m_params ) ) $tlparams[] = 'ex:' . $param . '=\'.' . $this->encodePropertyName( $this->m_params[$param] ) . '\' ';
+					}
+					foreach ( $usparams as $param ) {
+						if ( array_key_exists( $param, $this->m_params ) ) $tlparams[] = 'ex:' . $param . '=\'' . $this->encodePropertyName( $this->m_params[$param] ) . '\' ';
+					}
+					if ( !array_key_exists( 'start', $this->m_params ) ) {// find out if a start and/or end date is specified
+						$dates = array();
+						foreach ( $res->getPrintRequests() as $pr ) {
+							if ( $pr->getTypeID() == '_dat' ) {
+								$dates[] = $pr;
+								if ( sizeof( $dates ) > 2 ) break;
+							}
+						}
+						if ( sizeof( $dates ) == 1 ) {
+							$tlparams[] = 'ex:start=\'.' . $this->encodePropertyName( $dates[0]->getLabel() ) . '\' ';
+						}
+						elseif ( sizeof( $dates ) == 2 ) {
+							$tlparams[] = 'ex:start=\'.' . $this->encodePropertyName( $dates[0]->getLabel() ) . '\' ';
+							$tlparams[] = 'ex:end=\'.' . $this->encodePropertyName( $dates[1]->getLabel() ) . '\' ';
+						}
+					}
+					$viewstack[] = 'ex:role=\'view\' ex:viewClass=\'Timeline\' ex:label=\'Timeline\' ex:showSummary=\'false\' ' . implode( " ", $tlparams );
+					break;
+				case 'map':// map view
+					if ( isset( $wgGoogleMapsKey ) ) {
+					   $map = true;
+					   $exparams = array( 'latlng', 'colorkey' );
+					   $usparams = array( 'type', 'center', 'zoom', 'size', 'scalecontrol', 'overviewcontrol', 'mapheight' );
+					   $mapparams = array();
+					   foreach ( $exparams as $param ) {
+						if ( array_key_exists( $param, $this->m_params ) ) $mapparams[] = 'ex:' . $param . '=\'.' . $this->encodePropertyName( $this->m_params[$param] ) . '\' ';
+					   }
+					   foreach ( $usparams as $param ) {
+						if ( array_key_exists( $param, $this->m_params ) ) $mapparams[] = 'ex:' . $param . '=\'' . $this->encodePropertyName( $this->m_params[$param] ) . '\' ';
+					   }
+					   if ( !array_key_exists( 'start', $this->m_params ) && !array_key_exists( 'end', $this->m_params ) ) { // find out if a geographic coordinate is available
+						foreach ( $res->getPrintRequests() as $pr ) {
+							if ( $pr->getTypeID() == '_geo' ) {
+								$mapparams[] = 'ex:latlng=\'.' . $this->encodePropertyName( $pr->getLabel() ) . '\' ';
+								break;
+							}
+						}
+					   }
+					   $viewstack[] .= 'ex:role=\'view\' ex:viewClass=\'Map\' ex:showSummary=\'false\' ex:label=\'Map\' ' . implode( " ", $mapparams );
+					}
+					break;
+				default: case 'tiles':// tile view
+					$sortstring = '';
+					if ( array_key_exists( 'sort', $this->m_params ) ) {
+						$sortfields = explode( ",", $this->m_params['sort'] );
+						foreach ( $sortfields as $field ) {
+							$sortkeys[] = "." . $this->encodePropertyName( trim( $field ) );
+						}
+						$sortstring = 'ex:orders=\'' . implode( ",", $sortkeys ) . '\' ';
+						if ( array_key_exists( 'order', $this->m_params ) ) $sortstring .= ' ex:directions=\'' . $this->encodePropertyName( $this->m_params['order'] ) . '\'';
+						if ( array_key_exists( 'grouped', $this->m_params ) ) $sortstring .= ' ex:grouped=\'' . $this->encodePropertyName( $this->m_params['grouped'] ) . '\'';
+					}
+					$viewstack[] = 'ex:role=\'view\' ex:showSummary=\'false\' ' . $sortstring;
+					break;
+			}
+		}
+
+		$viewsrc = 'var ex_views = "' . implode( "/", $viewstack ) . '".split(\'/\');;';
+
+
+
+		// prepare automatic lenses
+
+		global $wgParser;
+		$lenscounter = 0;
+		$linkcounter = 0;
+		$imagecounter = 0;
+
+		if ( array_key_exists( 'lens', $this->m_params ) ) {// a customized lens is specified via the lens parameter within the query
+			$lenstitle    = Title::newFromText( "Template:" . $this->m_params['lens'] );
+			$lensarticle  = new Article( $lenstitle );
+			$lenswikitext = $lensarticle->getContent();
+
+			if ( preg_match_all( "/[\[][\[][Ii][m][a][g][e][:][{][{][{][1-9A-z\-[:space:]]*[}][}][}][\]][\]]/u", $lenswikitext, $matches ) ) {
+                                foreach ( $matches as $match ) {
+                                        foreach ( $match as $value ) {
+                                                $strippedvalue = trim( substr( $value, 8 ), "[[{}]]" );
+                                                $lenswikitext = str_replace( $value, '<div class="inlines" id="imagecontent' . $imagecounter . '">' . $this->encodePropertyName( strtolower( str_replace( "\n", "", $strippedvalue ) ) ) . '</div>', $lenswikitext );
+                                                $imagecounter++;
+                                        }
+                                }
+                        }
+
+			if ( preg_match_all( "/[\[][\[][{][{][{][1-9A-z\-[:space:]]*[}][}][}][\]][\]]/u", $lenswikitext, $matches ) ) {
+				foreach ( $matches as $match ) {
+					foreach ( $match as $value ) {
+						$strippedvalue = trim( $value, "[[{}]]" );
+						$lenswikitext = str_replace( $value, '<div class="inlines" id="linkcontent' . $linkcounter . '">' . $this->encodePropertyName( strtolower( str_replace( "\n", "", $strippedvalue ) ) ) . '</div>', $lenswikitext );
+						$linkcounter++;
+					}
+				}
+			}
+
+			if ( preg_match_all( "/[{][{][{][1-9A-z\:\|\/\=\-[:space:]]*[}][}][}]/u", $lenswikitext, $matches ) ) {
+				foreach ( $matches as $match ) {
+					foreach ( $match as $value ) {
+						$strippedvalue = trim( $value, "{}" );
+						$lenswikitext = str_replace( $value, '<div class="inlines" id="lenscontent' . $lenscounter . '">' . $this->encodePropertyName( strtolower( str_replace( "\n", "", $strippedvalue ) ) ) . '</div>', $lenswikitext );
+						$lenscounter++;
+					}
+				}
+			}
+
+			$lenshtml = $wgParser->internalParse( $lenswikitext );// $wgParser->parse($lenswikitext, $lenstitle, new ParserOptions(), true, true)->getText();
+
+			$lenssrc = "var ex_lens = '" . str_replace( "\n", "", $lenshtml ) . "';ex_lenscounter =" . $lenscounter . ";ex_linkcounter=" . $linkcounter . ";ex_imagecounter=" . $imagecounter . ";";
+		} else {// generic lens (creates links to further content (property-pages, pages about values)
+			foreach ( $res->getPrintRequests() as $pr ) {
+				if ( $remote ) {
+					$wikiurl = str_replace( "$1", "", $extlinkpattern );
+				} else {
+					$wikiurl = $wgScriptPath . "/index.php?title=";
+				}
+				if ( $pr->getTypeID() == '_wpg' ) {
+					$prefix = '';
+					if ( $pr->getLabel() == 'Category' ) $prefix = "Category:";
+					$lensstack[] = '<tr ex:if-exists=".' . $this->encodePropertyName( $pr->getLabel() ) . '"><td width="20%">' . $pr->getText( 0, $this->mLinker ) . '</td><td width="80%" ex:content=".' . $this->encodePropertyName( $pr->getLabel() ) . '"><a ex:href-subcontent="' . $wikiurl . $prefix . '{{urlencval(value)}}"><div ex:content="value" class="name"></div></a></td></tr>';
+				}
+				else {
+					$lensstack[] = '<tr ex:if-exists=".' . $this->encodePropertyName( $pr->getLabel() ) . '"><td width="20%">' . $pr->getText( 0, $this->mLinker ) . '</td><td width="80%"><div ex:content=".' . $this->encodePropertyName( $pr->getLabel() ) . '" class="name"></div></td></tr>';
+				}
+			}
+			array_shift( $lensstack );
+			$lenssrc = 'var ex_lens = \'<table width=100% cellpadding=3><tr><th class="head" align=left bgcolor="#DDDDDD"><a ex:href-subcontent="' . $wikiurl . $this->determineNamespace( clone $res ) . '{{urlenc(.label)}}" class="linkhead"><div ex:content=".label" class="name"></div></a></th></tr></table><table width="100%" cellpadding=3>' . implode( "", $lensstack ) . '</table>\'; ex_lenscounter = 0; ex_linkcounter=0; ex_imagecounter=0;';
+		}
+
+		if ( $remote ) {
+                         $varremote = 'true';
+                } else {
+                        $varremote = 'false';
+                }
+
+		// Handling special formats like date
+		$formatssrc = 'var formats =\'\'';
+		if ( array_key_exists( 'date', $this->m_params ) ) $formatssrc = 'var formats = \'ex:formats="date { mode:' . $this->m_params['date'] . '; show:date }"\';';
+
+		// create a URL pointing to the corresponding JSON feed
+        $label = '';
+		$JSONlink = $res->getQueryLink( $label );
+		if ( $this->getSearchLabel( SMW_OUTPUT_WIKI ) != '' ) { // used as a file name
+			$link->setParameter( $this->getSearchLabel( SMW_OUTPUT_WIKI ), 'searchlabel' );
+		}
+		if ( array_key_exists( 'limit', $this->m_params ) ) {
+			$JSONlink->setParameter( htmlspecialchars( $this->m_params['limit'] ), 'limit' );
+		}
+		$JSONlink->setParameter( 'json', 'format' );
+		$stringtoedit = explode( "|", $JSONlink->getText( $outputmode, $this->mLinker ) );
+		$stringtoedit = substr( $stringtoedit[0], 3 );
+		$JSONlinksrc = "var JSONlink = '" . $stringtoedit . "';";
+
+		// create script header with variables containing the Exhibit markup
+		$headervars = "<script type='text/javascript'>\n\t\t\t" . $facetsrc . "\n\t\t\t" . $viewsrc . "\n\t\t\t" . $lenssrc . "\n\t\t\t" . $stylesrc . "\n\t\t\t" . $formatssrc . "\n\t\t\t" . $JSONlinksrc . "\n\t\t\t var remote=" . $varremote . ";</script>";
+
+
+		// To run Exhibit some links to the scripts of the API need to be included in the header
+
+		$ExhibitScriptSrc1 = '<script type="text/javascript" src="' . $srfgScriptPath . '/Exhibit/exhibit/exhibit-api.js?autoCreate=false&safe=true&bundle=false';
+		if ( $timeline ) $ExhibitScriptSrc1 .= '&views=timeline';
+		if ( $map ) $ExhibitScriptSrc1 .= '&gmapkey=' . $wgGoogleMapsKey;
+		$ExhibitScriptSrc1 .= '"></script>';
+		$ExhibitScriptSrc2 = '<script type="text/javascript" src="' . $srfgScriptPath . '/Exhibit/SRF_Exhibit.js"></script>';
+		$CSSSrc = '<link rel="stylesheet" type="text/css" href="' . $srfgScriptPath . '/Exhibit/SRF_Exhibit.css"></link>';
+
+		SMWOutputs::requireHeadItem( 'CSS', $CSSSrc ); // include CSS
+		SMWOutputs::requireHeadItem( 'EXHIBIT1', $ExhibitScriptSrc1 ); // include Exhibit API
+		SMWOutputs::requireHeadItem( 'EXHIBIT2', $ExhibitScriptSrc2 ); // includes javascript overwriting the Exhibit start-up functions
+		SMWOutputs::requireHeadItem( 'SOURCES' . $smwgIQRunningNumber, $sourcesrc );// include sources variable
+		SMWOutputs::requireHeadItem( 'VIEWSFACETS', $headervars );// include views and facets variable
+
+
+		if ( !$remote ) {
+
+		// print input table
+		// print header
+		if ( 'broadtable' == $this->mFormat ) $widthpara = ' width="100%"';
+		else $widthpara = '';
+		$result = "<table style=\"display:none\" class=\"smwtable\" id=\"querytable" . $smwgIQRunningNumber . "\">\n";
+		if ( $this->mShowHeaders ) { // building headers
+			$result .= "\t<tr>\n";
+			foreach ( $res->getPrintRequests() as $pr ) {
+				if ( $pr->getText( $outputmode, $this->getLinker( 0 ) ) == '' ) $headerlabel = "Name";
+				else $headerlabel = $pr->getText( $outputmode, $this->getLinker( 0 ) );
+				$result .= "\t\t<th>" . $headerlabel . "</th>\n";
+			}
+			$result .= "\t</tr>\n";
+		}
+
+		// print all result rows
+		while ( $row = $res->getNext() ) {
+			$result .= "\t<tr>\n";
+			foreach ( $row as $field ) {
+				$result .= "\t\t<td>";
+				$textstack = array();
+				while ( ( $object = $field->getNextDataValue() ) !== false ) {
+					switch( $object->getTypeID() ) {
+						case '_wpg':
+							$textstack[] = $object->getLongText( $outputmode, $this->getLinker( 0 ) );
+							break;
+						case '_geo':
+							$c = $object->getDBKeys();
+							$textstack[] = $c[0] . "," . $c[1];
+							break;
+						case '_num':
+							if ( method_exists( $object, 'getValueKey' ) ) {
+								$textstack[] = $object->getValueKey( $outputmode, $this->getLinker( 0 ) );
+							}
+							else {
+								$textstack[] = $object->getNumericValue( $outputmode, $this->getLinker( 0 ) );
+							}
+							break;
+						case '_dat':
+							$textstack[] = $object->getYear() . "-" . str_pad( $object->getMonth(), 2, '0', STR_PAD_LEFT ) . "-" . str_pad( $object->getDay(), 2, '0', STR_PAD_LEFT ) . " " . $object->getTimeString();
+							break;
+						case '_ema':
+							$textstack[] =  $object->getShortWikiText( $this->getLinker( 0 ) );
+							break;
+						case '_tel': case '_anu': case '_uri':
+							$textstack[] = $object->getWikiValue();
+							break;
+						case '__sin':
+							$tmp = $object->getShortText( $outputmode, null );
+							if ( strpos( $tmp, ":" ) ) {
+								$tmp = explode( ":", $tmp, 2 );
+								$tmp = $tmp[1];
+							}
+							$textstack[] = $tmp;
+							break;
+						case '_txt': case '_cod': case '_str':
+							$textstack[] = $object->getWikiValue();
+							break;
+						default:
+							$textstack[] = $object->getLongHTMLText( $this->getLinker( 0 ) );
+					}
+				}
+
+				if ( $textstack != null ) {
+					$result .= implode( ';', $textstack ) . "</td>\n";
+				}
+				else $result .= "</td>\n";
+			}
+			$result .= "\t</tr>\n";
+		}
+		$result .= "</table>\n"; }
+
+		if ( SRFExhibit::$exhibitRunningNumber == 0 ) $result .= "<div id=\"exhibitLocation\"></div>"; // print placeholder (just print it one time)
+		$this->isHTML = ( $outputmode == SMW_OUTPUT_HTML ); // yes, our code can be viewed as HTML if requested, no more parsing needed
+		SRFExhibit::$exhibitRunningNumber++;
+		return $result;
+	}
+
+	/**
+	 * @see SMWResultPrinter::getParamDefinitions
+	 *
+	 * @since 1.8
+	 *
+	 * @param $definitions array of IParamDefinition
+	 *
+	 * @return array of IParamDefinition|array
+	 */
+	public function getParamDefinitions( array $definitions ) {
+		$params = parent::getParamDefinitions( $definitions );
+
+		$params[] = array( 'name' => 'views', 'message' => 'srf_paramdesc_views', 'islist' => true, 'values' => array( 'tiles', 'tabular', 'timeline', 'maps' ) );
+		$params[] = array( 'name' => 'facets', 'message' => 'srf_paramdesc_facets' );
+		$params[] = array( 'name' => 'lens', 'message' => 'srf_paramdesc_lens' );
+
+		return $params;
+	}
+
+}