MediaWiki 1.7.1 wiederhergestellt

1 files changed, 315 insertions, 0 deletions

diff --git a/includes/CategoryPage.php b/includes/CategoryPage.php
new file mode 100644
index 00000000..53d69971
--- /dev/null
+++ b/includes/CategoryPage.php
@@ -0,0 +1,315 @@
+<?php
+/**
+ * Special handling for category description pages
+ * Modelled after ImagePage.php
+ *
+ * @package MediaWiki
+ */
+
+if( !defined( 'MEDIAWIKI' ) )
+	die( 1 );
+
+/**
+ * @package MediaWiki
+ */
+class CategoryPage extends Article {
+
+	function view() {
+		if(!wfRunHooks('CategoryPageView', array(&$this))) return;
+
+		if ( NS_CATEGORY == $this->mTitle->getNamespace() ) {
+			$this->openShowCategory();
+		}
+
+		Article::view();
+
+		# If the article we've just shown is in the "Image" namespace,
+		# follow it with the history list and link list for the image
+		# it describes.
+
+		if ( NS_CATEGORY == $this->mTitle->getNamespace() ) {
+			$this->closeShowCategory();
+		}
+	}
+
+	function openShowCategory() {
+		# For overloading
+	}
+
+	function closeShowCategory() {
+		global $wgOut, $wgRequest;
+		$from = $wgRequest->getVal( 'from' );
+		$until = $wgRequest->getVal( 'until' );
+		
+		$wgOut->addHTML( $this->doCategoryMagic( $from, $until ) );
+	}
+
+	/**
+	 * Format the category data list.
+	 *
+	 * @param string $from -- return only sort keys from this item on
+	 * @param string $until -- don't return keys after this point.
+	 * @return string HTML output
+	 * @private
+	 */
+	function doCategoryMagic( $from = '', $until = '' ) {
+		global $wgOut;
+		global $wgContLang,$wgUser, $wgCategoryMagicGallery, $wgCategoryPagingLimit;
+		$fname = 'CategoryPage::doCategoryMagic';
+		wfProfileIn( $fname );
+
+		$articles = array();
+		$articles_start_char = array();
+		$children = array();
+		$children_start_char = array();
+		
+		$showGallery = $wgCategoryMagicGallery && !$wgOut->mNoGallery;
+		if( $showGallery ) {
+			$ig = new ImageGallery();
+			$ig->setParsing();
+		}
+
+		$dbr =& wfGetDB( DB_SLAVE );
+		if( $from != '' ) {
+			$pageCondition = 'cl_sortkey >= ' . $dbr->addQuotes( $from );
+			$flip = false;
+		} elseif( $until != '' ) {
+			$pageCondition = 'cl_sortkey < ' . $dbr->addQuotes( $until );
+			$flip = true;
+		} else {
+			$pageCondition = '1 = 1';
+			$flip = false;
+		}
+		$limit = $wgCategoryPagingLimit;
+		$res = $dbr->select(
+			array( 'page', 'categorylinks' ),
+			array( 'page_title', 'page_namespace', 'page_len', 'cl_sortkey' ),
+			array( $pageCondition,
+			       'cl_from          =  page_id',
+			       'cl_to'           => $this->mTitle->getDBKey()),
+			       #'page_is_redirect' => 0),
+			#+ $pageCondition,
+			$fname,
+			array( 'ORDER BY' => $flip ? 'cl_sortkey DESC' : 'cl_sortkey',
+			       'LIMIT'    => $limit + 1 ) );
+
+		$sk =& $wgUser->getSkin();
+		$r = "<br style=\"clear:both;\"/>\n";
+		$count = 0;
+		$nextPage = null;
+		while( $x = $dbr->fetchObject ( $res ) ) {
+			if( ++$count > $limit ) {
+				// We've reached the one extra which shows that there are
+				// additional pages to be had. Stop here...
+				$nextPage = $x->cl_sortkey;
+				break;
+			}
+
+			$title = Title::makeTitle( $x->page_namespace, $x->page_title );
+
+			if( $title->getNamespace() == NS_CATEGORY ) {
+				// Subcategory; strip the 'Category' namespace from the link text.
+				array_push( $children, $sk->makeKnownLinkObj( $title, $wgContLang->convertHtml( $title->getText() ) ) );
+
+				// If there's a link from Category:A to Category:B, the sortkey of the resulting
+				// entry in the categorylinks table is Category:A, not A, which it SHOULD be.
+				// Workaround: If sortkey == "Category:".$title, than use $title for sorting,
+				// else use sortkey...
+				$sortkey='';
+				if( $title->getPrefixedText() == $x->cl_sortkey ) {
+					$sortkey=$wgContLang->firstChar( $x->page_title );
+				} else {
+					$sortkey=$wgContLang->firstChar( $x->cl_sortkey );
+				}
+				array_push( $children_start_char, $wgContLang->convert( $sortkey ) ) ;
+			} elseif( $showGallery && $title->getNamespace() == NS_IMAGE ) {
+				// Show thumbnails of categorized images, in a separate chunk
+				if( $flip ) {
+					$ig->insert( Image::newFromTitle( $title ) );
+				} else {
+					$ig->add( Image::newFromTitle( $title ) );
+				}
+			} else {
+				// Page in this category
+				array_push( $articles, $sk->makeSizeLinkObj( $x->page_len, $title, $wgContLang->convert( $title->getPrefixedText() ) ) ) ;
+				array_push( $articles_start_char, $wgContLang->convert( $wgContLang->firstChar( $x->cl_sortkey ) ) );
+			}
+		}
+		$dbr->freeResult( $res );
+
+		if( $flip ) {
+			$children            = array_reverse( $children );
+			$children_start_char = array_reverse( $children_start_char );
+			$articles            = array_reverse( $articles );
+			$articles_start_char = array_reverse( $articles_start_char );
+		}
+
+		if( $until != '' ) {
+			$r .= $this->pagingLinks( $this->mTitle, $nextPage, $until, $limit );
+		} elseif( $nextPage != '' || $from != '' ) {
+			$r .= $this->pagingLinks( $this->mTitle, $from, $nextPage, $limit );
+		}
+
+		# Don't show subcategories section if there are none.
+		if( count( $children ) > 0 ) {
+			# Showing subcategories
+			$r .= '<h2>' . wfMsg( 'subcategories' ) . "</h2>\n";
+			$r .= wfMsgExt( 'subcategorycount', array( 'parse' ), count( $children) );
+			$r .= $this->formatList( $children, $children_start_char );
+		}
+
+		# Showing articles in this category
+		$ti = htmlspecialchars( $this->mTitle->getText() );
+		$r .= '<h2>' . wfMsg( 'category_header', $ti ) . "</h2>\n";
+		$r .= wfMsgExt( 'categoryarticlecount', array( 'parse' ), count( $articles) );
+		$r .= $this->formatList( $articles, $articles_start_char );
+
+		if( $showGallery && ! $ig->isEmpty() ) {
+			$r.= $ig->toHTML();
+		}
+
+		if( $until != '' ) {
+			$r .= $this->pagingLinks( $this->mTitle, $nextPage, $until, $limit );
+		} elseif( $nextPage != '' || $from != '' ) {
+			$r .= $this->pagingLinks( $this->mTitle, $from, $nextPage, $limit );
+		}
+
+		wfProfileOut( $fname );
+		return $r;
+	}
+
+	/**
+	 * Format a list of articles chunked by letter, either as a
+	 * bullet list or a columnar format, depending on the length.
+	 *
+	 * @param array $articles
+	 * @param array $articles_start_char
+	 * @param int   $cutoff
+	 * @return string
+	 * @private
+	 */
+	function formatList( $articles, $articles_start_char, $cutoff = 6 ) {
+		if ( count ( $articles ) > $cutoff ) {
+			return $this->columnList( $articles, $articles_start_char );
+		} elseif ( count($articles) > 0) {
+			// for short lists of articles in categories.
+			return $this->shortList( $articles, $articles_start_char );
+		}
+		return '';
+	}
+
+	/**
+	 * Format a list of articles chunked by letter in a three-column
+	 * list, ordered vertically.
+	 *
+	 * @param array $articles
+	 * @param array $articles_start_char
+	 * @return string
+	 * @private
+	 */
+	function columnList( $articles, $articles_start_char ) {
+		// divide list into three equal chunks
+		$chunk = (int) (count ( $articles ) / 3);
+
+		// get and display header
+		$r = '<table width="100%"><tr valign="top">';
+
+		$prev_start_char = 'none';
+
+		// loop through the chunks
+		for($startChunk = 0, $endChunk = $chunk, $chunkIndex = 0;
+			$chunkIndex < 3;
+			$chunkIndex++, $startChunk = $endChunk, $endChunk += $chunk + 1)
+		{
+			$r .= "<td>\n";
+			$atColumnTop = true;
+
+			// output all articles in category
+			for ($index = $startChunk ;
+				$index < $endChunk && $index < count($articles);
+				$index++ )
+			{
+				// check for change of starting letter or begining of chunk
+				if ( ($index == $startChunk) ||
+					 ($articles_start_char[$index] != $articles_start_char[$index - 1]) )
+
+				{
+					if( $atColumnTop ) {
+						$atColumnTop = false;
+					} else {
+						$r .= "</ul>\n";
+					}
+					$cont_msg = "";
+					if ( $articles_start_char[$index] == $prev_start_char )
+						$cont_msg = wfMsgHtml('listingcontinuesabbrev');
+					$r .= "<h3>" . htmlspecialchars( $articles_start_char[$index] ) . "$cont_msg</h3>\n<ul>";
+					$prev_start_char = $articles_start_char[$index];
+				}
+
+				$r .= "<li>{$articles[$index]}</li>";
+			}
+			if( !$atColumnTop ) {
+				$r .= "</ul>\n";
+			}
+			$r .= "</td>\n";
+
+
+		}
+		$r .= '</tr></table>';
+		return $r;
+	}
+
+	/**
+	 * Format a list of articles chunked by letter in a bullet list.
+	 * @param array $articles
+	 * @param array $articles_start_char
+	 * @return string
+	 * @private
+	 */
+	function shortList( $articles, $articles_start_char ) {
+		$r = '<h3>' . htmlspecialchars( $articles_start_char[0] ) . "</h3>\n";
+		$r .= '<ul><li>'.$articles[0].'</li>';
+		for ($index = 1; $index < count($articles); $index++ )
+		{
+			if ($articles_start_char[$index] != $articles_start_char[$index - 1])
+			{
+				$r .= "</ul><h3>" . htmlspecialchars( $articles_start_char[$index] ) . "</h3>\n<ul>";
+			}
+
+			$r .= "<li>{$articles[$index]}</li>";
+		}
+		$r .= '</ul>';
+		return $r;
+	}
+
+	/**
+	 * @param Title  $title
+	 * @param string $first
+	 * @param string $last
+	 * @param int    $limit
+	 * @param array  $query - additional query options to pass
+	 * @return string
+	 * @private
+	 */
+	function pagingLinks( $title, $first, $last, $limit, $query = array() ) {
+		global $wgUser, $wgLang;
+		$sk =& $wgUser->getSkin();
+		$limitText = $wgLang->formatNum( $limit );
+
+		$prevLink = htmlspecialchars( wfMsg( 'prevn', $limitText ) );
+		if( $first != '' ) {
+			$prevLink = $sk->makeLinkObj( $title, $prevLink,
+				wfArrayToCGI( $query + array( 'until' => $first ) ) );
+		}
+		$nextLink = htmlspecialchars( wfMsg( 'nextn', $limitText ) );
+		if( $last != '' ) {
+			$nextLink = $sk->makeLinkObj( $title, $nextLink,
+				wfArrayToCGI( $query + array( 'from' => $last ) ) );
+		}
+
+		return "($prevLink) ($nextLink)";
+	}
+}
+
+
+?>