]> scripts.mit.edu Git - autoinstallsdev/mediawiki.git/blobdiff - includes/ChangesList.php
MediaWiki 1.30.2
[autoinstallsdev/mediawiki.git] / includes / ChangesList.php
diff --git a/includes/ChangesList.php b/includes/ChangesList.php
deleted file mode 100644 (file)
index b8bc4f5..0000000
+++ /dev/null
@@ -1,1169 +0,0 @@
-<?php
-/**
- * Classes to show various lists of changes:
- * - watchlist
- * - related changes
- * - recent changes
- *
- * @file
- */
-
-/**
- * @todo document
- */
-class RCCacheEntry extends RecentChange {
-       var $secureName, $link;
-       var $curlink , $difflink, $lastlink, $usertalklink, $versionlink;
-       var $userlink, $timestamp, $watched;
-
-       static function newFromParent( $rc ) {
-               $rc2 = new RCCacheEntry;
-               $rc2->mAttribs = $rc->mAttribs;
-               $rc2->mExtra = $rc->mExtra;
-               return $rc2;
-       }
-}
-
-/**
- * Base class for all changes lists
- */
-class ChangesList {
-       public $skin;
-       protected $watchlist = false;
-
-       /**
-       * Changeslist contructor
-       * @param $skin Skin
-       */
-       public function __construct( $skin ) {
-               $this->skin = $skin;
-               $this->preCacheMessages();
-       }
-
-       /**
-        * Fetch an appropriate changes list class for the specified user
-        * Some users might want to use an enhanced list format, for instance
-        *
-        * @param $user User to fetch the list class for
-        * @return ChangesList derivative
-        */
-       public static function newFromUser( &$user ) {
-               global $wgRequest;
-
-               $sk = $user->getSkin();
-               $list = null;
-               if( wfRunHooks( 'FetchChangesList', array( &$user, &$sk, &$list ) ) ) {
-                       $new = $wgRequest->getBool( 'enhanced', $user->getOption( 'usenewrc' ) );
-                       return $new ? new EnhancedChangesList( $sk ) : new OldChangesList( $sk );
-               } else {
-                       return $list;
-               }
-       }
-       
-       /**
-        * Sets the list to use a <li class="watchlist-(namespace)-(page)"> tag
-        * @param $value Boolean
-        */
-       public function setWatchlistDivs( $value = true ) {
-               $this->watchlist = $value;
-       }
-
-       /**
-        * As we use the same small set of messages in various methods and that
-        * they are called often, we call them once and save them in $this->message
-        */
-       private function preCacheMessages() {
-               if( !isset( $this->message ) ) {
-                       foreach ( explode( ' ', 'cur diff hist last blocklink history ' .
-                       'semicolon-separator pipe-separator' ) as $msg ) {
-                               $this->message[$msg] = wfMsgExt( $msg, array( 'escapenoentities' ) );
-                       }
-               }
-       }
-
-
-       /**
-        * Returns the appropriate flags for new page, minor change and patrolling
-        * @param $new Boolean
-        * @param $minor Boolean
-        * @param $patrolled Boolean
-        * @param $nothing String to use for empty space
-        * @param $bot Boolean
-        * @return String
-        */
-       protected function recentChangesFlags( $new, $minor, $patrolled, $nothing = '&#160;', $bot = false ) {
-               $f = $new ? self::flag( 'newpage' ) : $nothing;
-               $f .= $minor ? self::flag( 'minor' ) : $nothing;
-               $f .= $bot ? self::flag( 'bot' ) : $nothing;
-               $f .= $patrolled ? self::flag( 'unpatrolled' ) : $nothing;
-               return $f;
-       }
-
-       /**
-        * Provide the <abbr> element appropriate to a given abbreviated flag,
-        * namely the flag indicating a new page, a minor edit, a bot edit, or an
-        * unpatrolled edit.  By default in English it will contain "N", "m", "b",
-        * "!" respectively, plus it will have an appropriate title and class.
-        *
-        * @param $key String: 'newpage', 'unpatrolled', 'minor', or 'bot'
-        * @return String: Raw HTML
-        */
-       public static function flag( $key ) {
-               static $messages = null;
-               if ( is_null( $messages ) ) {
-                       foreach ( explode( ' ', 'minoreditletter boteditletter newpageletter ' .
-                       'unpatrolledletter recentchanges-label-minor recentchanges-label-bot ' .
-                       'recentchanges-label-newpage recentchanges-label-unpatrolled' ) as $msg ) {
-                               $messages[$msg] = wfMsgExt( $msg, 'escapenoentities' );
-                       }
-               }
-               # Inconsistent naming, bleh
-               if ( $key == 'newpage' || $key == 'unpatrolled' ) {
-                       $key2 = $key;
-               } else {
-                       $key2 = $key . 'edit';
-               }
-               return "<abbr class=\"$key\" title=\""
-                       . $messages["recentchanges-label-$key"] . "\">"
-                       . $messages["${key2}letter"]
-                       . '</abbr>';
-       }
-
-       /**
-        * Returns text for the start of the tabular part of RC
-        * @return String
-        */
-       public function beginRecentChangesList() {
-               $this->rc_cache = array();
-               $this->rcMoveIndex = 0;
-               $this->rcCacheIndex = 0;
-               $this->lastdate = '';
-               $this->rclistOpen = false;
-               return '';
-       }
-       
-       /**
-        * Show formatted char difference
-        * @param $old Integer: bytes
-        * @param $new Integer: bytes
-        * @returns String
-        */
-       public static function showCharacterDifference( $old, $new ) {
-               global $wgRCChangedSizeThreshold, $wgLang, $wgMiserMode;
-               $szdiff = $new - $old;
-
-               $code = $wgLang->getCode();
-               static $fastCharDiff = array();
-               if ( !isset($fastCharDiff[$code]) ) {
-                       $fastCharDiff[$code] = $wgMiserMode || wfMsgNoTrans( 'rc-change-size' ) === '$1';
-               }
-                       
-               $formatedSize = $wgLang->formatNum($szdiff);
-
-               if ( !$fastCharDiff[$code] ) {
-                       $formatedSize = wfMsgExt( 'rc-change-size', array( 'parsemag', 'escape' ), $formatedSize );
-               }
-                       
-               if( abs( $szdiff ) > abs( $wgRCChangedSizeThreshold ) ) {
-                       $tag = 'strong';
-               } else {
-                   $tag = 'span';
-               }
-               if( $szdiff === 0 ) {
-                       return "<$tag class='mw-plusminus-null'>($formatedSize)</$tag>";
-               } elseif( $szdiff > 0 ) {
-                       return "<$tag class='mw-plusminus-pos'>(+$formatedSize)</$tag>";
-           } else {
-                       return "<$tag class='mw-plusminus-neg'>($formatedSize)</$tag>";
-               }
-       }
-
-       /**
-        * Returns text for the end of RC
-        * @return String
-        */
-       public function endRecentChangesList() {
-               if( $this->rclistOpen ) {
-                       return "</ul>\n";
-               } else {
-                       return '';
-               }
-       }
-
-       public function insertMove( &$s, $rc ) {
-               # Diff
-               $s .= '(' . $this->message['diff'] . ') (';
-               # Hist
-               $s .= $this->skin->link(
-                       $rc->getMovedToTitle(),
-                       $this->message['hist'],
-                       array(),
-                       array( 'action' => 'history' ),
-                       array( 'known', 'noclasses' )
-               ) . ') . . ';
-               # "[[x]] moved to [[y]]"
-               $msg = ( $rc->mAttribs['rc_type'] == RC_MOVE ) ? '1movedto2' : '1movedto2_redir';
-               $s .= wfMsg(
-                       $msg,
-                       $this->skin->link(
-                               $rc->getTitle(),
-                               null,
-                               array(),
-                               array( 'redirect' => 'no' ),
-                               array( 'known', 'noclasses' )
-                       ),
-                       $this->skin->link(
-                               $rc->getMovedToTitle(),
-                               null,
-                               array(),
-                               array(),
-                               array( 'known', 'noclasses' )
-                       )
-               );
-       }
-
-       public function insertDateHeader( &$s, $rc_timestamp ) {
-               global $wgLang;
-               # Make date header if necessary
-               $date = $wgLang->date( $rc_timestamp, true, true );
-               if( $date != $this->lastdate ) {
-                       if( $this->lastdate != '' ) {
-                               $s .= "</ul>\n";
-                       }
-                       $s .= Xml::element( 'h4', null, $date ) . "\n<ul class=\"special\">";
-                       $this->lastdate = $date;
-                       $this->rclistOpen = true;
-               }
-       }
-
-       public function insertLog( &$s, $title, $logtype ) {
-               $logname = LogPage::logName( $logtype );
-               $s .= '(' . $this->skin->link(
-                       $title,
-                       $logname,
-                       array(),
-                       array(),
-                       array( 'known', 'noclasses' )
-               ) . ')';
-       }
-
-       public function insertDiffHist( &$s, &$rc, $unpatrolled ) {
-               # Diff link
-               if( $rc->mAttribs['rc_type'] == RC_NEW || $rc->mAttribs['rc_type'] == RC_LOG ) {
-                       $diffLink = $this->message['diff'];
-               } else if( !self::userCan($rc,Revision::DELETED_TEXT) ) {
-                       $diffLink = $this->message['diff'];
-               } else {
-                       $query = array(
-                               'curid' => $rc->mAttribs['rc_cur_id'],
-                               'diff'  => $rc->mAttribs['rc_this_oldid'],
-                               'oldid' => $rc->mAttribs['rc_last_oldid']
-                       );
-
-                       if( $unpatrolled ) {
-                               $query['rcid'] = $rc->mAttribs['rc_id'];
-                       };
-
-                       $diffLink = $this->skin->link(
-                               $rc->getTitle(),
-                               $this->message['diff'],
-                               array( 'tabindex' => $rc->counter ),
-                               $query,
-                               array( 'known', 'noclasses' )
-                       );
-               }
-               $s .= '(' . $diffLink . $this->message['pipe-separator'];
-               # History link
-               $s .= $this->skin->link(
-                       $rc->getTitle(),
-                       $this->message['hist'],
-                       array(),
-                       array(
-                               'curid' => $rc->mAttribs['rc_cur_id'],
-                               'action' => 'history'
-                       ),
-                       array( 'known', 'noclasses' )
-               );
-               $s .= ') . . ';
-       }
-
-       public function insertArticleLink( &$s, &$rc, $unpatrolled, $watched ) {
-               global $wgContLang;
-               # If it's a new article, there is no diff link, but if it hasn't been
-               # patrolled yet, we need to give users a way to do so
-               $params = array();
-
-               if ( $unpatrolled && $rc->mAttribs['rc_type'] == RC_NEW ) {
-                       $params['rcid'] = $rc->mAttribs['rc_id'];
-               }
-
-               if( $this->isDeleted($rc,Revision::DELETED_TEXT) ) {
-                       $articlelink = $this->skin->link(
-                               $rc->getTitle(),
-                               null,
-                               array(),
-                               $params,
-                               array( 'known', 'noclasses' )
-                       );
-                       $articlelink = '<span class="history-deleted">' . $articlelink . '</span>';
-               } else {
-                       $articlelink = ' '. $this->skin->link(
-                               $rc->getTitle(),
-                               null,
-                               array(),
-                               $params,
-                               array( 'known', 'noclasses' )
-                       );
-               }
-               # Bolden pages watched by this user
-               if( $watched ) {
-                       $articlelink = "<strong class=\"mw-watched\">{$articlelink}</strong>";
-               }
-               # RTL/LTR marker
-               $articlelink .= $wgContLang->getDirMark();
-
-               wfRunHooks( 'ChangesListInsertArticleLink',
-                       array(&$this, &$articlelink, &$s, &$rc, $unpatrolled, $watched) );
-
-               $s .= " $articlelink";
-       }
-
-       public function insertTimestamp( &$s, $rc ) {
-               global $wgLang;
-               $s .= $this->message['semicolon-separator'] . 
-                       $wgLang->time( $rc->mAttribs['rc_timestamp'], true, true ) . ' . . ';
-       }
-
-       /** Insert links to user page, user talk page and eventually a blocking link */
-       public function insertUserRelatedLinks( &$s, &$rc ) {
-               if( $this->isDeleted( $rc, Revision::DELETED_USER ) ) {
-                  $s .= ' <span class="history-deleted">' . wfMsgHtml( 'rev-deleted-user' ) . '</span>';
-               } else {
-                 $s .= $this->skin->userLink( $rc->mAttribs['rc_user'], $rc->mAttribs['rc_user_text'] );
-                 $s .= $this->skin->userToolLinks( $rc->mAttribs['rc_user'], $rc->mAttribs['rc_user_text'] );
-               }
-       }
-
-       /** insert a formatted action */
-       public function insertAction( &$s, &$rc ) {
-               if( $rc->mAttribs['rc_type'] == RC_LOG ) {
-                       if( $this->isDeleted( $rc, LogPage::DELETED_ACTION ) ) {
-                               $s .= ' <span class="history-deleted">' . wfMsgHtml( 'rev-deleted-event' ) . '</span>';
-                       } else {
-                               $s .= ' '.LogPage::actionText( $rc->mAttribs['rc_log_type'], $rc->mAttribs['rc_log_action'],
-                                       $rc->getTitle(), $this->skin, LogPage::extractParams( $rc->mAttribs['rc_params'] ), true, true );
-                       }
-               }
-       }
-
-       /** insert a formatted comment */
-       public function insertComment( &$s, &$rc ) {
-               if( $rc->mAttribs['rc_type'] != RC_MOVE && $rc->mAttribs['rc_type'] != RC_MOVE_OVER_REDIRECT ) {
-                       if( $this->isDeleted( $rc, Revision::DELETED_COMMENT ) ) {
-                               $s .= ' <span class="history-deleted">' . wfMsgHtml( 'rev-deleted-comment' ) . '</span>';
-                       } else {
-                               $s .= $this->skin->commentBlock( $rc->mAttribs['rc_comment'], $rc->getTitle() );
-                       }
-               }
-       }
-
-       /**
-        * Check whether to enable recent changes patrol features
-        * @return Boolean
-        */
-       public static function usePatrol() {
-               global $wgUser;
-               return $wgUser->useRCPatrol();
-       }
-
-       /**
-        * Returns the string which indicates the number of watching users
-        */
-       protected function numberofWatchingusers( $count ) {
-               global $wgLang;
-               static $cache = array();
-               if( $count > 0 ) {
-                       if( !isset( $cache[$count] ) ) {
-                               $cache[$count] = wfMsgExt( 'number_of_watching_users_RCview',
-                                       array('parsemag', 'escape' ), $wgLang->formatNum( $count ) );
-                       }
-                       return $cache[$count];
-               } else {
-                       return '';
-               }
-       }
-
-       /**
-        * Determine if said field of a revision is hidden
-        * @param $rc RCCacheEntry
-        * @param $field Integer: one of DELETED_* bitfield constants
-        * @return Boolean
-        */
-       public static function isDeleted( $rc, $field ) {
-               return ( $rc->mAttribs['rc_deleted'] & $field ) == $field;
-       }
-
-       /**
-        * Determine if the current user is allowed to view a particular
-        * field of this revision, if it's marked as deleted.
-        * @param $rc RCCacheEntry
-        * @param $field Integer
-        * @return Boolean
-        */
-       public static function userCan( $rc, $field ) {
-               if( $rc->mAttribs['rc_type'] == RC_LOG ) {
-                       return LogEventsList::userCanBitfield( $rc->mAttribs['rc_deleted'], $field );
-               } else {
-                       return Revision::userCanBitfield( $rc->mAttribs['rc_deleted'], $field );
-               }
-       }
-
-       protected function maybeWatchedLink( $link, $watched = false ) {
-               if( $watched ) {
-                       return '<strong class="mw-watched">' . $link . '</strong>';
-               } else {
-                       return '<span class="mw-rc-unwatched">' . $link . '</span>';
-               }
-       }
-       
-       /** Inserts a rollback link */
-       public function insertRollback( &$s, &$rc ) {
-               global $wgUser;
-               if( !$rc->mAttribs['rc_new'] && $rc->mAttribs['rc_this_oldid'] && $rc->mAttribs['rc_cur_id'] ) {
-                       $page = $rc->getTitle();
-                       /** Check for rollback and edit permissions, disallow special pages, and only
-                         * show a link on the top-most revision */
-                       if ($wgUser->isAllowed('rollback') && $rc->mAttribs['page_latest'] == $rc->mAttribs['rc_this_oldid'] )
-                       {
-                               $rev = new Revision( array(
-                                       'id'        => $rc->mAttribs['rc_this_oldid'],
-                                       'user'      => $rc->mAttribs['rc_user'],
-                                       'user_text' => $rc->mAttribs['rc_user_text'],
-                                       'deleted'   => $rc->mAttribs['rc_deleted']
-                               ) );
-                               $rev->setTitle( $page );
-                               $s .= ' '.$this->skin->generateRollback( $rev );
-                       }
-               }
-       }
-
-       public function insertTags( &$s, &$rc, &$classes ) {
-               if ( empty($rc->mAttribs['ts_tags']) )
-                       return;
-                       
-               list($tagSummary, $newClasses) = ChangeTags::formatSummaryRow( $rc->mAttribs['ts_tags'], 'changeslist' );
-               $classes = array_merge( $classes, $newClasses );
-               $s .= ' ' . $tagSummary;
-       }
-
-       public function insertExtra( &$s, &$rc, &$classes ) {
-               ## Empty, used for subclassers to add anything special.
-       }
-}
-
-
-/**
- * Generate a list of changes using the good old system (no javascript)
- */
-class OldChangesList extends ChangesList {
-       /**
-        * Format a line using the old system (aka without any javascript).
-        */
-       public function recentChangesLine( &$rc, $watched = false, $linenumber = null ) {
-               global $wgLang, $wgRCShowChangedSize, $wgUser;
-               wfProfileIn( __METHOD__ );
-               # Should patrol-related stuff be shown?
-               $unpatrolled = $wgUser->useRCPatrol() && !$rc->mAttribs['rc_patrolled'];
-
-               $dateheader = ''; // $s now contains only <li>...</li>, for hooks' convenience.
-               $this->insertDateHeader( $dateheader, $rc->mAttribs['rc_timestamp'] );
-
-               $s = '';
-               $classes = array();
-               // use mw-line-even/mw-line-odd class only if linenumber is given (feature from bug 14468)
-               if( $linenumber ) {
-                       if( $linenumber & 1 ) {
-                               $classes[] = 'mw-line-odd';
-                       }
-                       else {
-                               $classes[] = 'mw-line-even';
-                       }
-               }
-
-               // Moved pages
-               if( $rc->mAttribs['rc_type'] == RC_MOVE || $rc->mAttribs['rc_type'] == RC_MOVE_OVER_REDIRECT ) {
-                       $this->insertMove( $s, $rc );
-               // Log entries
-               } elseif( $rc->mAttribs['rc_log_type'] ) {
-                       $logtitle = Title::newFromText( 'Log/'.$rc->mAttribs['rc_log_type'], NS_SPECIAL );
-                       $this->insertLog( $s, $logtitle, $rc->mAttribs['rc_log_type'] );
-               // Log entries (old format) or log targets, and special pages
-               } elseif( $rc->mAttribs['rc_namespace'] == NS_SPECIAL ) {
-                       list( $name, $subpage ) = SpecialPage::resolveAliasWithSubpage( $rc->mAttribs['rc_title'] );
-                       if( $name == 'Log' ) {
-                               $this->insertLog( $s, $rc->getTitle(), $subpage );
-                       }
-               // Regular entries
-               } else {
-                       $this->insertDiffHist( $s, $rc, $unpatrolled );
-                       # M, N, b and ! (minor, new, bot and unpatrolled)
-                       $s .= $this->recentChangesFlags( $rc->mAttribs['rc_new'], $rc->mAttribs['rc_minor'],
-                               $unpatrolled, '', $rc->mAttribs['rc_bot'] );
-                       $this->insertArticleLink( $s, $rc, $unpatrolled, $watched );
-               }
-               # Edit/log timestamp
-               $this->insertTimestamp( $s, $rc );
-               # Bytes added or removed
-               if( $wgRCShowChangedSize ) {
-                       $cd = $rc->getCharacterDifference();
-                       if( $cd != '' ) {
-                               $s .= "$cd  . . ";
-                       }
-               }
-               # User tool links
-               $this->insertUserRelatedLinks( $s, $rc );
-               # Log action text (if any)
-               $this->insertAction( $s, $rc );
-               # Edit or log comment
-               $this->insertComment( $s, $rc );
-               # Tags
-               $this->insertTags( $s, $rc, $classes );
-               # Rollback
-               $this->insertRollback( $s, $rc );
-               # For subclasses
-               $this->insertExtra( $s, $rc, $classes );
-               
-               # How many users watch this page
-               if( $rc->numberofWatchingusers > 0 ) {
-                       $s .= ' ' . wfMsgExt( 'number_of_watching_users_RCview', 
-                               array( 'parsemag', 'escape' ), $wgLang->formatNum( $rc->numberofWatchingusers ) );
-               }
-               
-               if( $this->watchlist ) {
-                       $classes[] = Sanitizer::escapeClass( 'watchlist-'.$rc->mAttribs['rc_namespace'].'-'.$rc->mAttribs['rc_title'] );
-               }
-               
-               wfRunHooks( 'OldChangesListRecentChangesLine', array(&$this, &$s, $rc) );
-
-               wfProfileOut( __METHOD__ );
-               return "$dateheader<li class=\"".implode( ' ', $classes )."\">".$s."</li>\n";
-       }
-}
-
-
-/**
- * Generate a list of changes using an Enhanced system (uses javascript).
- */
-class EnhancedChangesList extends ChangesList {
-       /**
-        * Add the JavaScript file for enhanced changeslist
-        * @return String
-        */
-       public function beginRecentChangesList() {
-               global $wgOut;
-               $this->rc_cache = array();
-               $this->rcMoveIndex = 0;
-               $this->rcCacheIndex = 0;
-               $this->lastdate = '';
-               $this->rclistOpen = false;
-               $wgOut->addModules( 'mediawiki.legacy.enhancedchanges' );
-               return '';
-       }
-       /**
-        * Format a line for enhanced recentchange (aka with javascript and block of lines).
-        */
-       public function recentChangesLine( &$baseRC, $watched = false ) {
-               global $wgLang, $wgUser;
-               
-               wfProfileIn( __METHOD__ );
-
-               # Create a specialised object
-               $rc = RCCacheEntry::newFromParent( $baseRC );
-
-               # Extract fields from DB into the function scope (rc_xxxx variables)
-               // FIXME: Would be good to replace this extract() call with something
-               // that explicitly initializes variables.
-               extract( $rc->mAttribs );
-               $curIdEq = array( 'curid' => $rc_cur_id );
-
-               # If it's a new day, add the headline and flush the cache
-               $date = $wgLang->date( $rc_timestamp, true );
-               $ret = '';
-               if( $date != $this->lastdate ) {
-                       # Process current cache
-                       $ret = $this->recentChangesBlock();
-                       $this->rc_cache = array();
-                       $ret .= Xml::element( 'h4', null, $date ) . "\n";
-                       $this->lastdate = $date;
-               }
-
-               # Should patrol-related stuff be shown?
-               if( $wgUser->useRCPatrol() ) {
-                       $rc->unpatrolled = !$rc_patrolled;
-               } else {
-                       $rc->unpatrolled = false;
-               }
-
-               $showdifflinks = true;
-               # Make article link
-               // Page moves
-               if( $rc_type == RC_MOVE || $rc_type == RC_MOVE_OVER_REDIRECT ) {
-                       $msg = ( $rc_type == RC_MOVE ) ? "1movedto2" : "1movedto2_redir";
-                       $clink = wfMsg( $msg, $this->skin->linkKnown( $rc->getTitle(), null,
-                               array(), array( 'redirect' => 'no' ) ),
-                               $this->skin->linkKnown( $rc->getMovedToTitle() ) );
-               // New unpatrolled pages
-               } else if( $rc->unpatrolled && $rc_type == RC_NEW ) {
-                       $clink = $this->skin->linkKnown( $rc->getTitle(), null, array(),
-                               array( 'rcid' => $rc_id ) );
-               // Log entries
-               } else if( $rc_type == RC_LOG ) {
-                       if( $rc_log_type ) {
-                               $logtitle = SpecialPage::getTitleFor( 'Log', $rc_log_type );
-                               $clink = '(' . $this->skin->linkKnown( $logtitle, 
-                                       LogPage::logName($rc_log_type) ) . ')';
-                       } else {
-                               $clink = $this->skin->link( $rc->getTitle() );
-                       }
-                       $watched = false;
-               // Log entries (old format) and special pages
-               } elseif( $rc_namespace == NS_SPECIAL ) {
-                       list( $specialName, $logtype ) = SpecialPage::resolveAliasWithSubpage( $rc_title );
-                       if ( $specialName == 'Log' ) {
-                               # Log updates, etc
-                               $logname = LogPage::logName( $logtype );
-                               $clink = '(' . $this->skin->linkKnown( $rc->getTitle(), $logname ) . ')';
-                       } else {
-                               wfDebug( "Unexpected special page in recentchanges\n" );
-                               $clink = '';
-                       }
-               // Edits
-               } else {
-                       $clink = $this->skin->linkKnown( $rc->getTitle() );
-               }
-
-               # Don't show unusable diff links
-               if ( !ChangesList::userCan($rc,Revision::DELETED_TEXT) ) {
-                       $showdifflinks = false;
-               }
-
-               $time = $wgLang->time( $rc_timestamp, true, true );
-               $rc->watched = $watched;
-               $rc->link = $clink;
-               $rc->timestamp = $time;
-               $rc->numberofWatchingusers = $baseRC->numberofWatchingusers;
-
-               # Make "cur" and "diff" links.  Do not use link(), it is too slow if
-               # called too many times (50% of CPU time on RecentChanges!).
-               if( $rc->unpatrolled ) {
-                       $rcIdQuery = array( 'rcid' => $rc_id );
-               } else {
-                       $rcIdQuery = array();
-               }
-               $querycur = $curIdEq + array( 'diff' => '0', 'oldid' => $rc_this_oldid );
-               $querydiff = $curIdEq + array( 'diff' => $rc_this_oldid, 'oldid' =>
-                       $rc_last_oldid ) + $rcIdQuery;
-
-               if( !$showdifflinks ) {
-                       $curLink = $this->message['cur'];
-                       $diffLink = $this->message['diff'];
-               } else if( in_array( $rc_type, array(RC_NEW,RC_LOG,RC_MOVE,RC_MOVE_OVER_REDIRECT) ) ) {
-                       if ( $rc_type != RC_NEW ) {
-                               $curLink = $this->message['cur'];
-                       } else {
-                               $curUrl = htmlspecialchars( $rc->getTitle()->getLinkUrl( $querycur ) );
-                               $curLink = "<a href=\"$curUrl\" tabindex=\"{$baseRC->counter}\">{$this->message['cur']}</a>";
-                       }
-                       $diffLink = $this->message['diff'];
-               } else {
-                       $diffUrl = htmlspecialchars( $rc->getTitle()->getLinkUrl( $querydiff ) );
-                       $curUrl = htmlspecialchars( $rc->getTitle()->getLinkUrl( $querycur ) );
-                       $diffLink = "<a href=\"$diffUrl\" tabindex=\"{$baseRC->counter}\">{$this->message['diff']}</a>";
-                       $curLink = "<a href=\"$curUrl\" tabindex=\"{$baseRC->counter}\">{$this->message['cur']}</a>";
-               }
-
-               # Make "last" link
-               if( !$showdifflinks || !$rc_last_oldid ) {
-                       $lastLink = $this->message['last'];
-               } else if( $rc_type == RC_LOG || $rc_type == RC_MOVE || $rc_type == RC_MOVE_OVER_REDIRECT ) {
-                       $lastLink = $this->message['last'];
-               } else {
-                       $lastLink = $this->skin->linkKnown( $rc->getTitle(), $this->message['last'],
-                               array(), $curIdEq + array('diff' => $rc_this_oldid, 'oldid' => $rc_last_oldid) + $rcIdQuery );
-               }
-
-               # Make user links
-               if( $this->isDeleted($rc,Revision::DELETED_USER) ) {
-                       $rc->userlink = ' <span class="history-deleted">' . wfMsgHtml( 'rev-deleted-user' ) . '</span>';
-               } else {
-                       $rc->userlink = $this->skin->userLink( $rc_user, $rc_user_text );
-                       $rc->usertalklink = $this->skin->userToolLinks( $rc_user, $rc_user_text );
-               }
-
-               $rc->lastlink = $lastLink;
-               $rc->curlink  = $curLink;
-               $rc->difflink = $diffLink;
-
-               # Put accumulated information into the cache, for later display
-               # Page moves go on their own line
-               $title = $rc->getTitle();
-               $secureName = $title->getPrefixedDBkey();
-               if( $rc_type == RC_MOVE || $rc_type == RC_MOVE_OVER_REDIRECT ) {
-                       # Use an @ character to prevent collision with page names
-                       $this->rc_cache['@@' . ($this->rcMoveIndex++)] = array($rc);
-               } else {
-                       # Logs are grouped by type
-                       if( $rc_type == RC_LOG ){
-                               $secureName = SpecialPage::getTitleFor( 'Log', $rc_log_type )->getPrefixedDBkey();
-                       }
-                       if( !isset( $this->rc_cache[$secureName] ) ) {
-                               $this->rc_cache[$secureName] = array();
-                       }
-
-                       array_push( $this->rc_cache[$secureName], $rc );
-               }
-
-               wfProfileOut( __METHOD__ );
-
-               return $ret;
-       }
-
-       /**
-        * Enhanced RC group
-        */
-       protected function recentChangesBlockGroup( $block ) {
-               global $wgLang, $wgContLang, $wgRCShowChangedSize;
-
-               wfProfileIn( __METHOD__ );
-
-               # Add the namespace and title of the block as part of the class
-               if ( $block[0]->mAttribs['rc_log_type'] ) {
-                       # Log entry
-                       $classes = 'mw-enhanced-rc ' . Sanitizer::escapeClass( 'mw-changeslist-log-' . $block[0]->mAttribs['rc_log_type'] . '-' . $block[0]->mAttribs['rc_title'] );
-               } else {
-                       $classes = 'mw-enhanced-rc ' . Sanitizer::escapeClass( 'mw-changeslist-ns' . $block[0]->mAttribs['rc_namespace'] . '-' . $block[0]->mAttribs['rc_title'] );
-               }
-               $r = Html::openElement( 'table', array( 'class' => $classes ) ) .
-                       Html::openElement( 'tr' );
-
-               # Collate list of users
-               $userlinks = array();
-               # Other properties
-               $unpatrolled = false;
-               $isnew = false;
-               $curId = $currentRevision = 0;
-               # Some catalyst variables...
-               $namehidden = true;
-               $allLogs = true;
-               foreach( $block as $rcObj ) {
-                       $oldid = $rcObj->mAttribs['rc_last_oldid'];
-                       if( $rcObj->mAttribs['rc_new'] ) {
-                               $isnew = true;
-                       }
-                       // If all log actions to this page were hidden, then don't
-                       // give the name of the affected page for this block!
-                       if( !$this->isDeleted( $rcObj, LogPage::DELETED_ACTION ) ) {
-                               $namehidden = false;
-                       }
-                       $u = $rcObj->userlink;
-                       if( !isset( $userlinks[$u] ) ) {
-                               $userlinks[$u] = 0;
-                       }
-                       if( $rcObj->unpatrolled ) {
-                               $unpatrolled = true;
-                       }
-                       if( $rcObj->mAttribs['rc_type'] != RC_LOG ) {
-                               $allLogs = false;
-                       }
-                       # Get the latest entry with a page_id and oldid
-                       # since logs may not have these.
-                       if( !$curId && $rcObj->mAttribs['rc_cur_id'] ) {
-                               $curId = $rcObj->mAttribs['rc_cur_id'];
-                       }
-                       if( !$currentRevision && $rcObj->mAttribs['rc_this_oldid'] ) {
-                               $currentRevision = $rcObj->mAttribs['rc_this_oldid'];
-                       }
-
-                       $bot = $rcObj->mAttribs['rc_bot'];
-                       $userlinks[$u]++;
-               }
-
-               # Sort the list and convert to text
-               krsort( $userlinks );
-               asort( $userlinks );
-               $users = array();
-               foreach( $userlinks as $userlink => $count) {
-                       $text = $userlink;
-                       $text .= $wgContLang->getDirMark();
-                       if( $count > 1 ) {
-                               $text .= ' (' . $wgLang->formatNum( $count ) . '×)';
-                       }
-                       array_push( $users, $text );
-               }
-
-               $users = ' <span class="changedby">[' . 
-                       implode( $this->message['semicolon-separator'], $users ) . ']</span>';
-
-               # ID for JS visibility toggle
-               $jsid = $this->rcCacheIndex;
-               # onclick handler to toggle hidden/expanded
-               $toggleLink = "onclick='toggleVisibility($jsid); return false'";
-               # Title for <a> tags
-               $expandTitle = htmlspecialchars( wfMsg( 'rc-enhanced-expand' ) );
-               $closeTitle = htmlspecialchars( wfMsg( 'rc-enhanced-hide' ) );
-
-               $tl = "<span id='mw-rc-openarrow-$jsid' class='mw-changeslist-expanded' style='visibility:hidden'><a href='#' $toggleLink title='$expandTitle'>" . $this->sideArrow() . "</a></span>";
-               $tl .= "<span id='mw-rc-closearrow-$jsid' class='mw-changeslist-hidden' style='display:none'><a href='#' $toggleLink title='$closeTitle'>" . $this->downArrow() . "</a></span>";
-               $r .= '<td class="mw-enhanced-rc">'.$tl.'&#160;';
-
-               # Main line
-               $r .= $this->recentChangesFlags( $isnew, false, $unpatrolled, '&#160;', $bot );
-
-               # Timestamp
-               $r .= '&#160;'.$block[0]->timestamp.'&#160;</td><td style="padding:0px;">';
-
-               # Article link
-               if( $namehidden ) {
-                       $r .= ' <span class="history-deleted">' . wfMsgHtml( 'rev-deleted-event' ) . '</span>';
-               } else if( $allLogs ) {
-                       $r .= $this->maybeWatchedLink( $block[0]->link, $block[0]->watched );
-               } else {
-                       $this->insertArticleLink( $r, $block[0], $block[0]->unpatrolled, $block[0]->watched );
-               }
-
-               $r .= $wgContLang->getDirMark();
-
-               $queryParams['curid'] = $curId;
-               # Changes message
-               $n = count($block);
-               static $nchanges = array();
-               if ( !isset( $nchanges[$n] ) ) {
-                       $nchanges[$n] = wfMsgExt( 'nchanges', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) );
-               }
-               # Total change link
-               $r .= ' ';
-               if( !$allLogs ) {
-                       $r .= '(';
-                       if( !ChangesList::userCan( $rcObj, Revision::DELETED_TEXT ) ) {
-                               $r .= $nchanges[$n];
-                       } else if( $isnew ) {
-                               $r .= $nchanges[$n];
-                       } else {
-                               $params = $queryParams;
-                               $params['diff'] = $currentRevision;
-                               $params['oldid'] = $oldid;
-                               
-                               $r .= $this->skin->link(
-                                       $block[0]->getTitle(),
-                                       $nchanges[$n],
-                                       array(),
-                                       $params,
-                                       array( 'known', 'noclasses' )
-                               );
-                       }
-               }
-
-               # History
-               if( $allLogs ) {
-                       // don't show history link for logs
-               } else if( $namehidden || !$block[0]->getTitle()->exists() ) {
-                       $r .= $this->message['pipe-separator'] . $this->message['hist'] . ')';
-               } else {
-                       $params = $queryParams;
-                       $params['action'] = 'history';
-
-                       $r .= $this->message['pipe-separator'] .
-                               $this->skin->link(
-                                       $block[0]->getTitle(),
-                                       $this->message['hist'],
-                                       array(),
-                                       $params,
-                                       array( 'known', 'noclasses' )
-                               ) . ')';
-               }
-               $r .= ' . . ';
-
-               # Character difference (does not apply if only log items)
-               if( $wgRCShowChangedSize && !$allLogs ) {
-                       $last = 0;
-                       $first = count($block) - 1;
-                       # Some events (like logs) have an "empty" size, so we need to skip those...
-                       while( $last < $first && $block[$last]->mAttribs['rc_new_len'] === null ) {
-                               $last++;
-                       }
-                       while( $first > $last && $block[$first]->mAttribs['rc_old_len'] === null ) {
-                               $first--;
-                       }
-                       # Get net change
-                       $chardiff = $rcObj->getCharacterDifference( $block[$first]->mAttribs['rc_old_len'],
-                               $block[$last]->mAttribs['rc_new_len'] );
-
-                       if( $chardiff == '' ) {
-                               $r .= ' ';
-                       } else {
-                               $r .= ' ' . $chardiff. ' . . ';
-                       }
-               }
-
-               $r .= $users;
-               $r .= $this->numberofWatchingusers($block[0]->numberofWatchingusers);
-
-               $r .= "</td></tr></table>\n";
-
-               # Sub-entries
-               $r .= '<div id="mw-rc-subentries-'.$jsid.'" class="mw-changeslist-hidden">';
-               $r .= '<table class="mw-enhanced-rc">';
-               foreach( $block as $rcObj ) {
-                       # Extract fields from DB into the function scope (rc_xxxx variables)
-                       // FIXME: Would be good to replace this extract() call with something
-                       // that explicitly initializes variables.
-                       # Classes to apply -- TODO implement
-                       $classes = array();
-                       extract( $rcObj->mAttribs );
-
-                       #$r .= '<tr><td valign="top">'.$this->spacerArrow();
-                       $r .= '<tr><td style="vertical-align:top;font-family:monospace; padding:0px;">';
-                       $r .= $this->spacerIndent() . $this->spacerIndent();
-                       $r .= $this->recentChangesFlags( $rc_new, $rc_minor, $rcObj->unpatrolled, '&#160;', $rc_bot );
-                       $r .= '&#160;</td><td style="vertical-align:top; padding:0px;"><span style="font-family:monospace">';
-
-                       $params = $queryParams;
-
-                       if( $rc_this_oldid != 0 ) {
-                               $params['oldid'] = $rc_this_oldid;
-                       }
-
-                       # Log timestamp
-                       if( $rc_type == RC_LOG ) {
-                               $link = $rcObj->timestamp;
-                       # Revision link
-                       } else if( !ChangesList::userCan($rcObj,Revision::DELETED_TEXT) ) {
-                               $link = '<span class="history-deleted">'.$rcObj->timestamp.'</span> ';
-                       } else {
-                               if ( $rcObj->unpatrolled && $rc_type == RC_NEW) {
-                                       $params['rcid'] = $rcObj->mAttribs['rc_id'];
-                               }
-
-                               $link = $this->skin->link(
-                                               $rcObj->getTitle(),
-                                               $rcObj->timestamp,
-                                               array(),
-                                               $params,
-                                               array( 'known', 'noclasses' )
-                                       );
-                               if( $this->isDeleted($rcObj,Revision::DELETED_TEXT) )
-                                       $link = '<span class="history-deleted">'.$link.'</span> ';
-                       }
-                       $r .= $link . '</span>';
-
-                       if ( !$rc_type == RC_LOG || $rc_type == RC_NEW ) {
-                               $r .= ' (';
-                               $r .= $rcObj->curlink;
-                               $r .= $this->message['pipe-separator'];
-                               $r .= $rcObj->lastlink;
-                               $r .= ')';
-                       }
-                       $r .= ' . . ';
-
-                       # Character diff
-                       if( $wgRCShowChangedSize ) {
-                               $r .= ( $rcObj->getCharacterDifference() == '' ? '' : $rcObj->getCharacterDifference() . ' . . ' ) ;
-                       }
-                       # User links
-                       $r .= $rcObj->userlink;
-                       $r .= $rcObj->usertalklink;
-                       // log action
-                       $this->insertAction( $r, $rcObj );
-                       // log comment
-                       $this->insertComment( $r, $rcObj );
-                       # Rollback
-                       $this->insertRollback( $r, $rcObj );
-                       # Tags
-                       $this->insertTags( $r, $rcObj, $classes );
-
-                       $r .= "</td></tr>\n";
-               }
-               $r .= "</table></div>\n";
-
-               $this->rcCacheIndex++;
-
-               wfProfileOut( __METHOD__ );
-
-               return $r;
-       }
-
-       /**
-        * Generate HTML for an arrow or placeholder graphic
-        * @param $dir String: one of '', 'd', 'l', 'r'
-        * @param $alt String: text
-        * @param $title String: text
-        * @return String: HTML <img> tag
-        */
-       protected function arrow( $dir, $alt='', $title='' ) {
-               global $wgStylePath;
-               $encUrl = htmlspecialchars( $wgStylePath . '/common/images/Arr_' . $dir . '.png' );
-               $encAlt = htmlspecialchars( $alt );
-               $encTitle = htmlspecialchars( $title );
-               return "<img src=\"$encUrl\" width=\"12\" height=\"12\" alt=\"$encAlt\" title=\"$encTitle\" />";
-       }
-
-       /**
-        * Generate HTML for a right- or left-facing arrow,
-        * depending on language direction.
-        * @return String: HTML <img> tag
-        */
-       protected function sideArrow() {
-               global $wgContLang;
-               $dir = $wgContLang->isRTL() ? 'l' : 'r';
-               return $this->arrow( $dir, '+', wfMsg( 'rc-enhanced-expand' ) );
-       }
-
-       /**
-        * Generate HTML for a down-facing arrow
-        * depending on language direction.
-        * @return String: HTML <img> tag
-        */
-       protected function downArrow() {
-               return $this->arrow( 'd', '-', wfMsg( 'rc-enhanced-hide' ) );
-       }
-
-       /**
-        * Generate HTML for a spacer image
-        * @return String: HTML <img> tag
-        */
-       protected function spacerArrow() {
-               return $this->arrow( '', codepointToUtf8( 0xa0 ) ); // non-breaking space
-       }
-
-       /**
-        * Add a set of spaces
-        * @return String: HTML <td> tag
-        */
-       protected function spacerIndent() {
-               return '&#160;&#160;&#160;&#160;&#160;';
-       }
-
-       /**
-        * Enhanced RC ungrouped line.
-        * @return String: a HTML formated line (generated using $r)
-        */
-       protected function recentChangesBlockLine( $rcObj ) {
-               global $wgRCShowChangedSize;
-
-               wfProfileIn( __METHOD__ );
-
-               # Extract fields from DB into the function scope (rc_xxxx variables)
-               // FIXME: Would be good to replace this extract() call with something
-               // that explicitly initializes variables.
-               // TODO implement
-               extract( $rcObj->mAttribs );
-               $query['curid'] = $rc_cur_id;
-
-               if( $rc_log_type ) {
-                       # Log entry
-                       $classes = 'mw-enhanced-rc ' . Sanitizer::escapeClass( 'mw-changeslist-log-' . $rc_log_type . '-' . $rcObj->mAttribs['rc_title'] );
-               } else {
-                       $classes = 'mw-enhanced-rc ' . Sanitizer::escapeClass( 'mw-changeslist-ns' . $rcObj->mAttribs['rc_namespace'] . '-' . $rcObj->mAttribs['rc_title'] );
-               }
-               $r = Html::openElement( 'table', array( 'class' => $classes ) ) .
-                       Html::openElement( 'tr' );
-
-               $r .= '<td class="mw-enhanced-rc">' . $this->spacerArrow() . '&#160;';
-               # Flag and Timestamp
-               if( $rc_type == RC_MOVE || $rc_type == RC_MOVE_OVER_REDIRECT ) {
-                       $r .= '&#160;&#160;&#160;&#160;'; // 4 flags -> 4 spaces
-               } else {
-                       $r .= $this->recentChangesFlags( $rc_type == RC_NEW, $rc_minor, $rcObj->unpatrolled, '&#160;', $rc_bot );
-               }
-               $r .= '&#160;'.$rcObj->timestamp.'&#160;</td><td style="padding:0px;">';
-               # Article or log link
-               if( $rc_log_type ) {
-                       $logtitle = Title::newFromText( "Log/$rc_log_type", NS_SPECIAL );
-                       $logname = LogPage::logName( $rc_log_type );
-                       $r .= '(' . $this->skin->link(
-                               $logtitle,
-                               $logname,
-                               array(),
-                               array(),
-                               array( 'known', 'noclasses' )
-                       ) . ')';
-               } else {
-                       $this->insertArticleLink( $r, $rcObj, $rcObj->unpatrolled, $rcObj->watched );
-               }
-               # Diff and hist links
-               if ( $rc_type != RC_LOG ) {
-                       $r .= ' ('. $rcObj->difflink . $this->message['pipe-separator'];
-                       $query['action'] = 'history';
-                       $r .= $this->skin->link(
-                               $rcObj->getTitle(),
-                               $this->message['hist'],
-                               array(),
-                               $query,
-                               array( 'known', 'noclasses' )
-                       ) . ')';
-               }
-               $r .= ' . . ';
-               # Character diff
-               if( $wgRCShowChangedSize && ($cd = $rcObj->getCharacterDifference()) ) {
-                       $r .= "$cd . . ";
-               }
-               # User/talk
-               $r .= ' '.$rcObj->userlink . $rcObj->usertalklink;
-               # Log action (if any)
-               if( $rc_log_type ) {
-                       if( $this->isDeleted($rcObj,LogPage::DELETED_ACTION) ) {
-                               $r .= ' <span class="history-deleted">' . wfMsgHtml('rev-deleted-event') . '</span>';
-                       } else {
-                               $r .= ' ' . LogPage::actionText( $rc_log_type, $rc_log_action, $rcObj->getTitle(), 
-                                       $this->skin, LogPage::extractParams($rc_params), true, true );
-                       }
-               }
-               $this->insertComment( $r, $rcObj );
-               $this->insertRollback( $r, $rcObj );
-               # Tags
-               $classes = explode( ' ', $classes );
-               $this->insertTags( $r, $rcObj, $classes );
-               # Show how many people are watching this if enabled
-               $r .= $this->numberofWatchingusers($rcObj->numberofWatchingusers);
-
-               $r .= "</td></tr></table>\n";
-
-               wfProfileOut( __METHOD__ );
-
-               return $r;
-       }
-
-       /**
-        * If enhanced RC is in use, this function takes the previously cached
-        * RC lines, arranges them, and outputs the HTML
-        */
-       protected function recentChangesBlock() {
-               if( count ( $this->rc_cache ) == 0 ) {
-                       return '';
-               }
-
-               wfProfileIn( __METHOD__ );
-
-               $blockOut = '';
-               foreach( $this->rc_cache as $block ) {
-                       if( count( $block ) < 2 ) {
-                               $blockOut .= $this->recentChangesBlockLine( array_shift( $block ) );
-                       } else {
-                               $blockOut .= $this->recentChangesBlockGroup( $block );
-                       }
-               }
-
-               wfProfileOut( __METHOD__ );
-
-               return '<div>'.$blockOut.'</div>';
-       }
-
-       /**
-        * Returns text for the end of RC
-        * If enhanced RC is in use, returns pretty much all the text
-        */
-       public function endRecentChangesList() {
-               return $this->recentChangesBlock() . parent::endRecentChangesList();
-       }
-
-}