1 files changed, 178 insertions, 0 deletions
diff --git a/www/wiki/extensions/SemanticMediaWiki/src/Page/ListBuilder.php b/www/wiki/extensions/SemanticMediaWiki/src/Page/ListBuilder.php
new file mode 100644
index 00000000..0aacd65a
--- /dev/null
+++ b/www/wiki/extensions/SemanticMediaWiki/src/Page/ListBuilder.php
@@ -0,0 +1,178 @@
+<?php
+
+namespace SMW\Page;
+
+use SMW\Store;
+use SMW\Message;
+use SMW\MediaWiki\Collator;
+use SMW\DataValueFactory;
+use SMWInfolink as Infolink;
+use SMWDataItem as DataItem;
+use SMW\Utils\HtmlColumns;
+use Linker;
+
+/**
+ * @license GNU GPL v2+
+ * @since 3.0
+ *
+ * @author mwjames
+ */
+class ListBuilder {
+
+	/**
+	 * @var Store
+	 */
+	public $store;
+
+	/**
+	 * @var Collator
+	 */
+	public $collator;
+
+	/**
+	 * @var callable
+	 */
+	public $itemFormatter;
+
+	/**
+	 * @var Linker
+	 */
+	public $linker = false;
+
+	/**
+	 * @var integer
+	 */
+	public $sort = SORT_NATURAL;
+
+	/**
+	 * @since 3.0
+	 *
+	 * @param Store $store
+	 * @param Collator|null $collator
+	 */
+	public function __construct( Store $store, Collator $collator = null ) {
+		$this->store = $store;
+		$this->collator = $collator;
+	}
+
+	/**
+	 * @since 3.0
+	 *
+	 * @param callable $itemFormatter
+	 */
+	public function setItemFormatter( callable $itemFormatter ) {
+		$this->itemFormatter = $itemFormatter;
+	}
+
+	/**
+	 * @since 3.0
+	 *
+	 * @param Linker|false $linker
+	 */
+	public function setLinker( $linker ) {
+		$this->linker = $linker;
+	}
+
+	/**
+	 * @since 3.0
+	 *
+	 * @param integer $sort
+	 */
+	public function sort( $sort ) {
+		$this->sort = $sort;
+	}
+
+	/**
+	 * @since 3.0
+	 *
+	 * @param DIWikiPage[] $dataItems
+	 *
+	 * @return array
+	 */
+	public function getList( array $dataItems ) {
+		return $this->buildList( $dataItems );
+	}
+
+	/**
+	 * @since 3.0
+	 *
+	 * @param DIWikiPage[] $dataItems
+	 *
+	 * @return string
+	 */
+	public function getColumnList( array $dataItems ) {
+
+		$htmlColumns = new HtmlColumns();
+
+		if ( count( $dataItems ) > 10 ) {
+			$htmlColumns->setColumnClass( 'smw-column-responsive' );
+		}
+
+		$htmlColumns->setContinueAbbrev(
+			Message::get( 'listingcontinuesabbrev', Message::PARSE, Message::USER_LANGUAGE )
+		);
+
+		$htmlColumns->setColumns( 1 );
+
+		$htmlColumns->setContents(
+			$this->buildList( $dataItems ),
+			HtmlColumns::INDEXED_LIST
+		);
+
+		return $htmlColumns->getHtml();
+	}
+
+	private function buildList( $dataItems ) {
+
+		$dataValueFactory = DataValueFactory::getInstance();
+
+		if ( $this->linker === false ) {
+			$this->linker = smwfGetLinker();
+		}
+
+		if ( $this->collator === null ) {
+			$this->collator = Collator::singleton();
+		}
+
+		$contents = [];
+
+		foreach ( $dataItems as $dataItem ) {
+
+			$dataValue = $dataValueFactory->newDataValueByItem( $dataItem, null );
+			$startChar = $this->getFirstLetter( $dataItem );
+
+			if ( $startChar === '' ) {
+				$startChar = '...';
+			}
+
+			if ( !isset( $contents[$startChar] ) ) {
+				$contents[$startChar] = [];
+			}
+
+			if ( is_callable( $this->itemFormatter ) ) {
+				// Use of ( ... )( ) only possible with PHP7
+				// $contents[$startChar][] = ( $this->itemFormatter )( $dataValue, $this->linker );
+				$contents[$startChar][] = call_user_func_array( $this->itemFormatter, [ $dataValue, $this->linker ] );
+			} else {
+				$searchlink = Infolink::newBrowsingLink( '+', $dataValue->getWikiValue() );
+				$contents[$startChar][] = $dataValue->getLongHTMLText( $this->linker ) . '&#160;' . $searchlink->getHTML( $this->linker );
+			}
+		}
+
+		ksort( $contents, $this->sort );
+
+		return $contents;
+	}
+
+	private function getFirstLetter( DataItem $dataItem ) {
+
+		$sortKey = $dataItem->getSortKey();
+
+		if ( $dataItem->getDIType() === DataItem::TYPE_WIKIPAGE ) {
+			$sortKey = $this->store->getWikiPageSortKey( $dataItem );
+		}
+
+		return $this->collator->getFirstLetter( $sortKey );
+	}
+
+}