includes/ChangesList.php

   1 <?php
   2 /**
   3  * Classes to show various lists of changes:
   4  * - watchlist
   5  * - related changes
   6  * - recent changes
   7  *
   8  * @file
   9  */
  10
  11 /**
  12  * @todo document
  13  */
  14 class RCCacheEntry extends RecentChange {
  15         var $secureName, $link;
  16         var $curlink , $difflink, $lastlink, $usertalklink, $versionlink;
  17         var $userlink, $timestamp, $watched;
  18
  19         /**
  20          * @param $rc RecentChange
  21          * @return RCCacheEntry
  22          */
  23         static function newFromParent( $rc ) {
  24                 $rc2 = new RCCacheEntry;
  25                 $rc2->mAttribs = $rc->mAttribs;
  26                 $rc2->mExtra = $rc->mExtra;
  27                 return $rc2;
  28         }
  29 }
  30
  31 /**
  32  * Base class for all changes lists
  33  */
  34 class ChangesList extends ContextSource {
  35
  36         /**
  37          * @var Skin
  38          */
  39         public $skin;
  40
  41         protected $watchlist = false;
  42
  43         protected $message;
  44
  45         /**
  46          * Changeslist contructor
  47          *
  48          * @param $obj Skin or IContextSource
  49          */
  50         public function __construct( $obj ) {
  51                 if ( $obj instanceof IContextSource ) {
  52                         $this->setContext( $obj );
  53                         $this->skin = $obj->getSkin();
  54                 } else {
  55                         $this->setContext( $obj->getContext() );
  56                         $this->skin = $obj;
  57                 }
  58                 $this->preCacheMessages();
  59         }
  60
  61         /**
  62          * Fetch an appropriate changes list class for the main context
  63          * This first argument used to be an User object.
  64          *
  65          * @deprecated in 1.18; use newFromContext() instead
  66          * @param $unused Unused
  67          * @return ChangesList|EnhancedChangesList|OldChangesList derivative
  68          */
  69         public static function newFromUser( $unused ) {
  70                 return self::newFromContext( RequestContext::getMain() );
  71         }
  72
  73         /**
  74          * Fetch an appropriate changes list class for the specified context
  75          * Some users might want to use an enhanced list format, for instance
  76          *
  77          * @param $context IContextSource to use
  78          * @return ChangesList|EnhancedChangesList|OldChangesList derivative
  79          */
  80         public static function newFromContext( IContextSource $context ) {
  81                 $user = $context->getUser();
  82                 $sk = $context->getSkin();
  83                 $list = null;
  84                 if( wfRunHooks( 'FetchChangesList', array( $user, &$sk, &$list ) ) ) {
  85                         $new = $context->getRequest()->getBool( 'enhanced', $user->getOption( 'usenewrc' ) );
  86                         return $new ? new EnhancedChangesList( $context ) : new OldChangesList( $context );
  87                 } else {
  88                         return $list;
  89                 }
  90         }
  91
  92         /**
  93          * Sets the list to use a <li class="watchlist-(namespace)-(page)"> tag
  94          * @param $value Boolean
  95          */
  96         public function setWatchlistDivs( $value = true ) {
  97                 $this->watchlist = $value;
  98         }
  99
 100         /**
 101          * As we use the same small set of messages in various methods and that
 102          * they are called often, we call them once and save them in $this->message
 103          */
 104         private function preCacheMessages() {
 105                 if( !isset( $this->message ) ) {
 106                         foreach ( explode( ' ', 'cur diff hist last blocklink history ' .
 107                         'semicolon-separator pipe-separator' ) as $msg ) {
 108                                 $this->message[$msg] = wfMsgExt( $msg, array( 'escapenoentities' ) );
 109                         }
 110                 }
 111         }
 112
 113         /**
 114          * Returns the appropriate flags for new page, minor change and patrolling
 115          * @param $flags Array Associative array of 'flag' => Bool
 116          * @param $nothing String to use for empty space
 117          * @return String
 118          */
 119         protected function recentChangesFlags( $flags, $nothing = '&#160;' ) {
 120                 $f = '';
 121                 foreach( array( 'newpage', 'minor', 'bot', 'unpatrolled' ) as $flag ){
 122                         $f .= isset( $flags[$flag] ) && $flags[$flag]
 123                                 ? self::flag( $flag )
 124                                 : $nothing;
 125                 }
 126                 return $f;
 127         }
 128
 129         /**
 130          * Provide the <abbr> element appropriate to a given abbreviated flag,
 131          * namely the flag indicating a new page, a minor edit, a bot edit, or an
 132          * unpatrolled edit.  By default in English it will contain "N", "m", "b",
 133          * "!" respectively, plus it will have an appropriate title and class.
 134          *
 135          * @param $flag String: 'newpage', 'unpatrolled', 'minor', or 'bot'
 136          * @return String: Raw HTML
 137          */
 138         public static function flag( $flag ) {
 139                 static $messages = null;
 140                 if ( is_null( $messages ) ) {
 141                         $messages = array(
 142                                 'newpage' => array( 'newpageletter', 'recentchanges-label-newpage' ),
 143                                 'minoredit' => array( 'minoreditletter', 'recentchanges-label-minor' ),
 144                                 'botedit' => array( 'boteditletter', 'recentchanges-label-bot' ),
 145                                 'unpatrolled' => array( 'unpatrolledletter', 'recentchanges-label-unpatrolled' ),
 146                         );
 147                         foreach( $messages as &$value ) {
 148                                 $value[0] = wfMsgExt( $value[0], 'escapenoentities' );
 149                                 $value[1] = wfMsgExt( $value[1], 'escapenoentities' );
 150                         }
 151                 }
 152
 153                 # Inconsistent naming, bleh
 154                 $map = array(
 155                         'newpage' => 'newpage',
 156                         'minor' => 'minoredit',
 157                         'bot' => 'botedit',
 158                         'unpatrolled' => 'unpatrolled',
 159                         'minoredit' => 'minoredit',
 160                         'botedit' => 'botedit',
 161                 );
 162                 $flag = $map[$flag];
 163
 164                 return "<abbr class='$flag' title='" . $messages[$flag][1] . "'>" . $messages[$flag][0] . '</abbr>';
 165         }
 166
 167         /**
 168          * Returns text for the start of the tabular part of RC
 169          * @return String
 170          */
 171         public function beginRecentChangesList() {
 172                 $this->rc_cache = array();
 173                 $this->rcMoveIndex = 0;
 174                 $this->rcCacheIndex = 0;
 175                 $this->lastdate = '';
 176                 $this->rclistOpen = false;
 177                 return '';
 178         }
 179
 180         /**
 181          * Show formatted char difference
 182          * @param $old Integer: bytes
 183          * @param $new Integer: bytes
 184          * @return String
 185          */
 186         public static function showCharacterDifference( $old, $new ) {
 187                 global $wgRCChangedSizeThreshold, $wgLang, $wgMiserMode;
 188                 $szdiff = $new - $old;
 189
 190                 $code = $wgLang->getCode();
 191                 static $fastCharDiff = array();
 192                 if ( !isset($fastCharDiff[$code]) ) {
 193                         $fastCharDiff[$code] = $wgMiserMode || wfMsgNoTrans( 'rc-change-size' ) === '$1';
 194                 }
 195
 196                 $formattedSize = $wgLang->formatNum($szdiff);
 197
 198                 if ( !$fastCharDiff[$code] ) {
 199                         $formattedSize = wfMsgExt( 'rc-change-size', array( 'parsemag' ), $formattedSize );
 200                 }
 201
 202                 if( abs( $szdiff ) > abs( $wgRCChangedSizeThreshold ) ) {
 203                         $tag = 'strong';
 204                 } else {
 205                         $tag = 'span';
 206                 }
 207
 208                 if ( $szdiff === 0 ) {
 209                         $formattedSizeClass = 'mw-plusminus-null';
 210                 }
 211                 if ( $szdiff > 0 ) {
 212                         $formattedSize = '+' . $formattedSize;
 213                         $formattedSizeClass = 'mw-plusminus-pos';
 214                 }
 215                 if ( $szdiff < 0 ) {
 216                         $formattedSizeClass = 'mw-plusminus-neg';
 217                 }
 218
 219                 return Html::element( $tag,
 220                         array( 'dir' => 'ltr', 'class' => $formattedSizeClass ),
 221                         "($formattedSize)" );
 222         }
 223
 224         /**
 225          * Returns text for the end of RC
 226          * @return String
 227          */
 228         public function endRecentChangesList() {
 229                 if( $this->rclistOpen ) {
 230                         return "</ul>\n";
 231                 } else {
 232                         return '';
 233                 }
 234         }
 235
 236         public function insertDateHeader( &$s, $rc_timestamp ) {
 237                 # Make date header if necessary
 238                 $date = $this->getLang()->date( $rc_timestamp, true, true );
 239                 if( $date != $this->lastdate ) {
 240                         if( $this->lastdate != '' ) {
 241                                 $s .= "</ul>\n";
 242                         }
 243                         $s .= Xml::element( 'h4', null, $date ) . "\n<ul class=\"special\">";
 244                         $this->lastdate = $date;
 245                         $this->rclistOpen = true;
 246                 }
 247         }
 248
 249         public function insertLog( &$s, $title, $logtype ) {
 250                 $page = new LogPage( $logtype );
 251                 $logname = $page->getName()->escaped();
 252                 $s .= '(' . Linker::linkKnown( $title, $logname ) . ')';
 253         }
 254
 255         /**
 256          * @param $s
 257          * @param $rc RecentChange
 258          * @param $unpatrolled
 259          * @return void
 260          */
 261         public function insertDiffHist( &$s, &$rc, $unpatrolled ) {
 262                 # Diff link
 263                 if( $rc->mAttribs['rc_type'] == RC_NEW || $rc->mAttribs['rc_type'] == RC_LOG ) {
 264                         $diffLink = $this->message['diff'];
 265                 } elseif( !self::userCan($rc,Revision::DELETED_TEXT) ) {
 266                         $diffLink = $this->message['diff'];
 267                 } else {
 268                         $query = array(
 269                                 'curid' => $rc->mAttribs['rc_cur_id'],
 270                                 'diff'  => $rc->mAttribs['rc_this_oldid'],
 271                                 'oldid' => $rc->mAttribs['rc_last_oldid']
 272                         );
 273
 274                         if( $unpatrolled ) {
 275                                 $query['rcid'] = $rc->mAttribs['rc_id'];
 276                         };
 277
 278                         $diffLink = Linker::linkKnown(
 279                                 $rc->getTitle(),
 280                                 $this->message['diff'],
 281                                 array( 'tabindex' => $rc->counter ),
 282                                 $query
 283                         );
 284                 }
 285                 $s .= '(' . $diffLink . $this->message['pipe-separator'];
 286                 # History link
 287                 $s .= Linker::linkKnown(
 288                         $rc->getTitle(),
 289                         $this->message['hist'],
 290                         array(),
 291                         array(
 292                                 'curid' => $rc->mAttribs['rc_cur_id'],
 293                                 'action' => 'history'
 294                         )
 295                 );
 296                 $s .= ') . . ';
 297         }
 298
 299         /**
 300          * @param $s
 301          * @param $rc RecentChange
 302          * @param $unpatrolled
 303          * @param $watched
 304          * @return void
 305          */
 306         public function insertArticleLink( &$s, &$rc, $unpatrolled, $watched ) {
 307                 # If it's a new article, there is no diff link, but if it hasn't been
 308                 # patrolled yet, we need to give users a way to do so
 309                 $params = array();
 310
 311                 if ( $unpatrolled && $rc->mAttribs['rc_type'] == RC_NEW ) {
 312                         $params['rcid'] = $rc->mAttribs['rc_id'];
 313                 }
 314
 315                 $articlelink = Linker::linkKnown(
 316                         $rc->getTitle(),
 317                         null,
 318                         array(),
 319                         $params
 320                 );
 321                 if( $this->isDeleted($rc,Revision::DELETED_TEXT) ) {
 322                         $articlelink = '<span class="history-deleted">' . $articlelink . '</span>';
 323                 }
 324                 # Bolden pages watched by this user
 325                 if( $watched ) {
 326                         $articlelink = "<strong class=\"mw-watched\">{$articlelink}</strong>";
 327                 }
 328                 # RTL/LTR marker
 329                 $articlelink .= $this->getLang()->getDirMark();
 330
 331                 wfRunHooks( 'ChangesListInsertArticleLink',
 332                         array(&$this, &$articlelink, &$s, &$rc, $unpatrolled, $watched) );
 333
 334                 $s .= " $articlelink";
 335         }
 336
 337         /**
 338          * @param $s
 339          * @param $rc RecentChange
 340          * @return void
 341          */
 342         public function insertTimestamp( &$s, $rc ) {
 343                 $s .= $this->message['semicolon-separator'] .
 344                         $this->getLang()->time( $rc->mAttribs['rc_timestamp'], true, true ) . ' . . ';
 345         }
 346
 347         /** Insert links to user page, user talk page and eventually a blocking link
 348          *
 349          * @param $rc RecentChange
 350          */
 351         public function insertUserRelatedLinks( &$s, &$rc ) {
 352                 if( $this->isDeleted( $rc, Revision::DELETED_USER ) ) {
 353                         $s .= ' <span class="history-deleted">' . wfMsgHtml( 'rev-deleted-user' ) . '</span>';
 354                 } else {
 355                         $s .= $this->getLang()->getDirMark() . Linker::userLink( $rc->mAttribs['rc_user'], $rc->mAttribs['rc_user_text'] );
 356                         $s .= Linker::userToolLinks( $rc->mAttribs['rc_user'], $rc->mAttribs['rc_user_text'] );
 357                 }
 358         }
 359
 360         /** insert a formatted action
 361          *
 362          * @param $rc RecentChange
 363          */
 364         public function insertLogEntry( $rc ) {
 365                 $formatter = LogFormatter::newFromRow( $rc->mAttribs );
 366                 $formatter->setShowUserToolLinks( true );
 367                 $mark = $this->getLang()->getDirMark();
 368                 return $formatter->getActionText() . " $mark" . $formatter->getComment();
 369         }
 370
 371         /**
 372          * Insert a formatted comment
 373          * @param $rc RecentChange
 374          */
 375         public function insertComment( $rc ) {
 376                 if( $rc->mAttribs['rc_type'] != RC_MOVE && $rc->mAttribs['rc_type'] != RC_MOVE_OVER_REDIRECT ) {
 377                         if( $this->isDeleted( $rc, Revision::DELETED_COMMENT ) ) {
 378                                 return ' <span class="history-deleted">' . wfMsgHtml( 'rev-deleted-comment' ) . '</span>';
 379                         } else {
 380                                 return Linker::commentBlock( $rc->mAttribs['rc_comment'], $rc->getTitle() );
 381                         }
 382                 }
 383         }
 384
 385         /**
 386          * Check whether to enable recent changes patrol features
 387          * @return Boolean
 388          */
 389         public static function usePatrol() {
 390                 global $wgUser;
 391                 return $wgUser->useRCPatrol();
 392         }
 393
 394         /**
 395          * Returns the string which indicates the number of watching users
 396          */
 397         protected function numberofWatchingusers( $count ) {
 398                 static $cache = array();
 399                 if( $count > 0 ) {
 400                         if( !isset( $cache[$count] ) ) {
 401                                 $cache[$count] = wfMsgExt( 'number_of_watching_users_RCview',
 402                                         array('parsemag', 'escape' ), $this->getLang()->formatNum( $count ) );
 403                         }
 404                         return $cache[$count];
 405                 } else {
 406                         return '';
 407                 }
 408         }
 409
 410         /**
 411          * Determine if said field of a revision is hidden
 412          * @param $rc RCCacheEntry
 413          * @param $field Integer: one of DELETED_* bitfield constants
 414          * @return Boolean
 415          */
 416         public static function isDeleted( $rc, $field ) {
 417                 return ( $rc->mAttribs['rc_deleted'] & $field ) == $field;
 418         }
 419
 420         /**
 421          * Determine if the current user is allowed to view a particular
 422          * field of this revision, if it's marked as deleted.
 423          * @param $rc RCCacheEntry
 424          * @param $field Integer
 425          * @return Boolean
 426          */
 427         public static function userCan( $rc, $field ) {
 428                 if( $rc->mAttribs['rc_type'] == RC_LOG ) {
 429                         return LogEventsList::userCanBitfield( $rc->mAttribs['rc_deleted'], $field );
 430                 } else {
 431                         return Revision::userCanBitfield( $rc->mAttribs['rc_deleted'], $field );
 432                 }
 433         }
 434
 435         protected function maybeWatchedLink( $link, $watched = false ) {
 436                 if( $watched ) {
 437                         return '<strong class="mw-watched">' . $link . '</strong>';
 438                 } else {
 439                         return '<span class="mw-rc-unwatched">' . $link . '</span>';
 440                 }
 441         }
 442
 443         /** Inserts a rollback link
 444          *
 445          * @param $s
 446          * @param $rc RecentChange
 447          */
 448         public function insertRollback( &$s, &$rc ) {
 449                 if( !$rc->mAttribs['rc_new'] && $rc->mAttribs['rc_this_oldid'] && $rc->mAttribs['rc_cur_id'] ) {
 450                         $page = $rc->getTitle();
 451                         /** Check for rollback and edit permissions, disallow special pages, and only
 452                           * show a link on the top-most revision */
 453                         if ( $this->getUser()->isAllowed('rollback') && $rc->mAttribs['page_latest'] == $rc->mAttribs['rc_this_oldid'] )
 454                         {
 455                                 $rev = new Revision( array(
 456                                         'id'        => $rc->mAttribs['rc_this_oldid'],
 457                                         'user'      => $rc->mAttribs['rc_user'],
 458                                         'user_text' => $rc->mAttribs['rc_user_text'],
 459                                         'deleted'   => $rc->mAttribs['rc_deleted']
 460                                 ) );
 461                                 $rev->setTitle( $page );
 462                                 $s .= ' '.Linker::generateRollback( $rev, $this->getContext() );
 463                         }
 464                 }
 465         }
 466
 467         /**
 468          * @param $s
 469          * @param $rc RecentChange
 470          * @param $classes
 471          * @return
 472          */
 473         public function insertTags( &$s, &$rc, &$classes ) {
 474                 if ( empty($rc->mAttribs['ts_tags']) )
 475                         return;
 476
 477                 list($tagSummary, $newClasses) = ChangeTags::formatSummaryRow( $rc->mAttribs['ts_tags'], 'changeslist' );
 478                 $classes = array_merge( $classes, $newClasses );
 479                 $s .= ' ' . $tagSummary;
 480         }
 481
 482         public function insertExtra( &$s, &$rc, &$classes ) {
 483                 ## Empty, used for subclassers to add anything special.
 484         }
 485 }
 486
 487
 488 /**
 489  * Generate a list of changes using the good old system (no javascript)
 490  */
 491 class OldChangesList extends ChangesList {
 492         /**
 493          * Format a line using the old system (aka without any javascript).
 494          *
 495          * @param $rc RecentChange
 496          */
 497         public function recentChangesLine( &$rc, $watched = false, $linenumber = null ) {
 498                 global $wgRCShowChangedSize;
 499                 wfProfileIn( __METHOD__ );
 500                 # Should patrol-related stuff be shown?
 501                 $unpatrolled = $this->getUser()->useRCPatrol() && !$rc->mAttribs['rc_patrolled'];
 502
 503                 $dateheader = ''; // $s now contains only <li>...</li>, for hooks' convenience.
 504                 $this->insertDateHeader( $dateheader, $rc->mAttribs['rc_timestamp'] );
 505
 506                 $s = '';
 507                 $classes = array();
 508                 // use mw-line-even/mw-line-odd class only if linenumber is given (feature from bug 14468)
 509                 if( $linenumber ) {
 510                         if( $linenumber & 1 ) {
 511                                 $classes[] = 'mw-line-odd';
 512                         }
 513                         else {
 514                                 $classes[] = 'mw-line-even';
 515                         }
 516                 }
 517
 518                 // Moved pages (very very old, not supported anymore)
 519                 if( $rc->mAttribs['rc_type'] == RC_MOVE || $rc->mAttribs['rc_type'] == RC_MOVE_OVER_REDIRECT ) {
 520                 // Log entries
 521                 } elseif( $rc->mAttribs['rc_log_type'] ) {
 522                         $logtitle = SpecialPage::getTitleFor( 'Log', $rc->mAttribs['rc_log_type'] );
 523                         $this->insertLog( $s, $logtitle, $rc->mAttribs['rc_log_type'] );
 524                 // Log entries (old format) or log targets, and special pages
 525                 } elseif( $rc->mAttribs['rc_namespace'] == NS_SPECIAL ) {
 526                         list( $name, $subpage ) = SpecialPageFactory::resolveAlias( $rc->mAttribs['rc_title'] );
 527                         if( $name == 'Log' ) {
 528                                 $this->insertLog( $s, $rc->getTitle(), $subpage );
 529                         }
 530                 // Regular entries
 531                 } else {
 532                         $this->insertDiffHist( $s, $rc, $unpatrolled );
 533                         # M, N, b and ! (minor, new, bot and unpatrolled)
 534                         $s .= $this->recentChangesFlags(
 535                                 array(
 536                                         'newpage' => $rc->mAttribs['rc_new'],
 537                                         'minor' => $rc->mAttribs['rc_minor'],
 538                                         'unpatrolled' => $unpatrolled,
 539                                         'bot' => $rc->mAttribs['rc_bot']
 540                                 ),
 541                                 ''
 542                         );
 543                         $this->insertArticleLink( $s, $rc, $unpatrolled, $watched );
 544                 }
 545                 # Edit/log timestamp
 546                 $this->insertTimestamp( $s, $rc );
 547                 # Bytes added or removed
 548                 if( $wgRCShowChangedSize ) {
 549                         $cd = $rc->getCharacterDifference();
 550                         if( $cd != '' ) {
 551                                 $s .= "$cd  . . ";
 552                         }
 553                 }
 554
 555                 if ( $rc->mAttribs['rc_type'] == RC_LOG ) {
 556                         $s .= $this->insertLogEntry( $rc );
 557                 } else {
 558                         # User tool links
 559                         $this->insertUserRelatedLinks( $s, $rc );
 560                         # LTR/RTL direction mark
 561                         $s .= $this->getLang()->getDirMark();
 562                         $s .= $this->insertComment( $rc );
 563                 }
 564
 565                 # Tags
 566                 $this->insertTags( $s, $rc, $classes );
 567                 # Rollback
 568                 $this->insertRollback( $s, $rc );
 569                 # For subclasses
 570                 $this->insertExtra( $s, $rc, $classes );
 571
 572                 # How many users watch this page
 573                 if( $rc->numberofWatchingusers > 0 ) {
 574                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_RCview',
 575                                 array( 'parsemag', 'escape' ), $this->getLang()->formatNum( $rc->numberofWatchingusers ) );
 576                 }
 577
 578                 if( $this->watchlist ) {
 579                         $classes[] = Sanitizer::escapeClass( 'watchlist-'.$rc->mAttribs['rc_namespace'].'-'.$rc->mAttribs['rc_title'] );
 580                 }
 581
 582                 wfRunHooks( 'OldChangesListRecentChangesLine', array(&$this, &$s, $rc) );
 583
 584                 wfProfileOut( __METHOD__ );
 585                 return "$dateheader<li class=\"".implode( ' ', $classes )."\">".$s."</li>\n";
 586         }
 587 }
 588
 589
 590 /**
 591  * Generate a list of changes using an Enhanced system (uses javascript).
 592  */
 593 class EnhancedChangesList extends ChangesList {
 594         /**
 595          * Add the JavaScript file for enhanced changeslist
 596          * @return String
 597          */
 598         public function beginRecentChangesList() {
 599                 $this->rc_cache = array();
 600                 $this->rcMoveIndex = 0;
 601                 $this->rcCacheIndex = 0;
 602                 $this->lastdate = '';
 603                 $this->rclistOpen = false;
 604                 $this->getOutput()->addModuleStyles( 'mediawiki.special.changeslist' );
 605                 return '';
 606         }
 607         /**
 608          * Format a line for enhanced recentchange (aka with javascript and block of lines).
 609          *
 610          * @param $baseRC RecentChange
 611          * @param $watched bool
 612          *
 613          * @return string
 614          */
 615         public function recentChangesLine( &$baseRC, $watched = false ) {
 616                 wfProfileIn( __METHOD__ );
 617
 618                 # Create a specialised object
 619                 $rc = RCCacheEntry::newFromParent( $baseRC );
 620
 621                 $curIdEq = array( 'curid' => $rc->mAttribs['rc_cur_id'] );
 622
 623                 # If it's a new day, add the headline and flush the cache
 624                 $date = $this->getLang()->date( $rc->mAttribs['rc_timestamp'], true );
 625                 $ret = '';
 626                 if( $date != $this->lastdate ) {
 627                         # Process current cache
 628                         $ret = $this->recentChangesBlock();
 629                         $this->rc_cache = array();
 630                         $ret .= Xml::element( 'h4', null, $date ) . "\n";
 631                         $this->lastdate = $date;
 632                 }
 633
 634                 # Should patrol-related stuff be shown?
 635                 if( $this->getUser()->useRCPatrol() ) {
 636                         $rc->unpatrolled = !$rc->mAttribs['rc_patrolled'];
 637                 } else {
 638                         $rc->unpatrolled = false;
 639                 }
 640
 641                 $showdifflinks = true;
 642                 # Make article link
 643                 $type = $rc->mAttribs['rc_type'];
 644                 $logType = $rc->mAttribs['rc_log_type'];
 645                 // Page moves, very old style, not supported anymore
 646                 if( $type == RC_MOVE || $type == RC_MOVE_OVER_REDIRECT ) {
 647                 // New unpatrolled pages
 648                 } elseif( $rc->unpatrolled && $type == RC_NEW ) {
 649                         $clink = Linker::linkKnown( $rc->getTitle(), null, array(),
 650                                 array( 'rcid' => $rc->mAttribs['rc_id'] ) );
 651                 // Log entries
 652                 } elseif( $type == RC_LOG ) {
 653                         if( $logType ) {
 654                                 $logtitle = SpecialPage::getTitleFor( 'Log', $logType );
 655                                 $clink = '(' . Linker::linkKnown( $logtitle,
 656                                         LogPage::logName( $logType ) ) . ')';
 657                         } else {
 658                                 $clink = Linker::link( $rc->getTitle() );
 659                         }
 660                         $watched = false;
 661                 // Log entries (old format) and special pages
 662                 } elseif( $rc->mAttribs['rc_namespace'] == NS_SPECIAL ) {
 663                         list( $specialName, $logtype ) = SpecialPageFactory::resolveAlias( $rc->mAttribs['rc_title'] );
 664                         if ( $specialName == 'Log' ) {
 665                                 # Log updates, etc
 666                                 $logname = LogPage::logName( $logtype );
 667                                 $clink = '(' . Linker::linkKnown( $rc->getTitle(), $logname ) . ')';
 668                         } else {
 669                                 wfDebug( "Unexpected special page in recentchanges\n" );
 670                                 $clink = '';
 671                         }
 672                 // Edits
 673                 } else {
 674                         $clink = Linker::linkKnown( $rc->getTitle() );
 675                 }
 676
 677                 # Don't show unusable diff links
 678                 if ( !ChangesList::userCan($rc,Revision::DELETED_TEXT) ) {
 679                         $showdifflinks = false;
 680                 }
 681
 682                 $time = $this->getLang()->time( $rc->mAttribs['rc_timestamp'], true, true );
 683                 $rc->watched = $watched;
 684                 $rc->link = $clink;
 685                 $rc->timestamp = $time;
 686                 $rc->numberofWatchingusers = $baseRC->numberofWatchingusers;
 687
 688                 # Make "cur" and "diff" links.  Do not use link(), it is too slow if
 689                 # called too many times (50% of CPU time on RecentChanges!).
 690                 $thisOldid = $rc->mAttribs['rc_this_oldid'];
 691                 $lastOldid = $rc->mAttribs['rc_last_oldid'];
 692                 if( $rc->unpatrolled ) {
 693                         $rcIdQuery = array( 'rcid' => $rc->mAttribs['rc_id'] );
 694                 } else {
 695                         $rcIdQuery = array();
 696                 }
 697                 $querycur = $curIdEq + array( 'diff' => '0', 'oldid' => $thisOldid );
 698                 $querydiff = $curIdEq + array( 'diff' => $thisOldid, 'oldid' =>
 699                         $lastOldid ) + $rcIdQuery;
 700
 701                 if( !$showdifflinks ) {
 702                         $curLink = $this->message['cur'];
 703                         $diffLink = $this->message['diff'];
 704                 } elseif( in_array( $type, array( RC_NEW, RC_LOG, RC_MOVE, RC_MOVE_OVER_REDIRECT ) ) ) {
 705                         if ( $type != RC_NEW ) {
 706                                 $curLink = $this->message['cur'];
 707                         } else {
 708                                 $curUrl = htmlspecialchars( $rc->getTitle()->getLinkUrl( $querycur ) );
 709                                 $curLink = "<a href=\"$curUrl\" tabindex=\"{$baseRC->counter}\">{$this->message['cur']}</a>";
 710                         }
 711                         $diffLink = $this->message['diff'];
 712                 } else {
 713                         $diffUrl = htmlspecialchars( $rc->getTitle()->getLinkUrl( $querydiff ) );
 714                         $curUrl = htmlspecialchars( $rc->getTitle()->getLinkUrl( $querycur ) );
 715                         $diffLink = "<a href=\"$diffUrl\" tabindex=\"{$baseRC->counter}\">{$this->message['diff']}</a>";
 716                         $curLink = "<a href=\"$curUrl\" tabindex=\"{$baseRC->counter}\">{$this->message['cur']}</a>";
 717                 }
 718
 719                 # Make "last" link
 720                 if( !$showdifflinks || !$lastOldid ) {
 721                         $lastLink = $this->message['last'];
 722                 } elseif( in_array( $type, array( RC_LOG, RC_MOVE, RC_MOVE_OVER_REDIRECT ) ) ) {
 723                         $lastLink = $this->message['last'];
 724                 } else {
 725                         $lastLink = Linker::linkKnown( $rc->getTitle(), $this->message['last'],
 726                                 array(), $curIdEq + array('diff' => $thisOldid, 'oldid' => $lastOldid) + $rcIdQuery );
 727                 }
 728
 729                 # Make user links
 730                 if( $this->isDeleted( $rc, Revision::DELETED_USER ) ) {
 731                         $rc->userlink = ' <span class="history-deleted">' . wfMsgHtml( 'rev-deleted-user' ) . '</span>';
 732                 } else {
 733                         $rc->userlink = Linker::userLink( $rc->mAttribs['rc_user'], $rc->mAttribs['rc_user_text'] );
 734                         $rc->usertalklink = Linker::userToolLinks( $rc->mAttribs['rc_user'], $rc->mAttribs['rc_user_text'] );
 735                 }
 736
 737                 $rc->lastlink = $lastLink;
 738                 $rc->curlink  = $curLink;
 739                 $rc->difflink = $diffLink;
 740
 741                 # Put accumulated information into the cache, for later display
 742                 # Page moves go on their own line
 743                 $title = $rc->getTitle();
 744                 $secureName = $title->getPrefixedDBkey();
 745                 if( $type == RC_MOVE || $type == RC_MOVE_OVER_REDIRECT ) {
 746                         # Use an @ character to prevent collision with page names
 747                         $this->rc_cache['@@' . ($this->rcMoveIndex++)] = array($rc);
 748                 } else {
 749                         # Logs are grouped by type
 750                         if( $type == RC_LOG ){
 751                                 $secureName = SpecialPage::getTitleFor( 'Log', $logType )->getPrefixedDBkey();
 752                         }
 753                         if( !isset( $this->rc_cache[$secureName] ) ) {
 754                                 $this->rc_cache[$secureName] = array();
 755                         }
 756
 757                         array_push( $this->rc_cache[$secureName], $rc );
 758                 }
 759
 760                 wfProfileOut( __METHOD__ );
 761
 762                 return $ret;
 763         }
 764
 765         /**
 766          * Enhanced RC group
 767          */
 768         protected function recentChangesBlockGroup( $block ) {
 769                 global $wgRCShowChangedSize;
 770
 771                 wfProfileIn( __METHOD__ );
 772
 773                 # Add the namespace and title of the block as part of the class
 774                 if ( $block[0]->mAttribs['rc_log_type'] ) {
 775                         # Log entry
 776                         $classes = 'mw-collapsible mw-collapsed mw-enhanced-rc ' . Sanitizer::escapeClass( 'mw-changeslist-log-' . $block[0]->mAttribs['rc_log_type'] . '-' . $block[0]->mAttribs['rc_title'] );
 777                 } else {
 778                         $classes = 'mw-collapsible mw-collapsed mw-enhanced-rc ' . Sanitizer::escapeClass( 'mw-changeslist-ns' . $block[0]->mAttribs['rc_namespace'] . '-' . $block[0]->mAttribs['rc_title'] );
 779                 }
 780                 $r = Html::openElement( 'table', array( 'class' => $classes ) ) .
 781                         Html::openElement( 'tr' );
 782
 783                 # Collate list of users
 784                 $userlinks = array();
 785                 # Other properties
 786                 $unpatrolled = false;
 787                 $isnew = false;
 788                 $curId = $currentRevision = 0;
 789                 # Some catalyst variables...
 790                 $namehidden = true;
 791                 $allLogs = true;
 792                 foreach( $block as $rcObj ) {
 793                         $oldid = $rcObj->mAttribs['rc_last_oldid'];
 794                         if( $rcObj->mAttribs['rc_new'] ) {
 795                                 $isnew = true;
 796                         }
 797                         // If all log actions to this page were hidden, then don't
 798                         // give the name of the affected page for this block!
 799                         if( !$this->isDeleted( $rcObj, LogPage::DELETED_ACTION ) ) {
 800                                 $namehidden = false;
 801                         }
 802                         $u = $rcObj->userlink;
 803                         if( !isset( $userlinks[$u] ) ) {
 804                                 $userlinks[$u] = 0;
 805                         }
 806                         if( $rcObj->unpatrolled ) {
 807                                 $unpatrolled = true;
 808                         }
 809                         if( $rcObj->mAttribs['rc_type'] != RC_LOG ) {
 810                                 $allLogs = false;
 811                         }
 812                         # Get the latest entry with a page_id and oldid
 813                         # since logs may not have these.
 814                         if( !$curId && $rcObj->mAttribs['rc_cur_id'] ) {
 815                                 $curId = $rcObj->mAttribs['rc_cur_id'];
 816                         }
 817                         if( !$currentRevision && $rcObj->mAttribs['rc_this_oldid'] ) {
 818                                 $currentRevision = $rcObj->mAttribs['rc_this_oldid'];
 819                         }
 820
 821                         $bot = $rcObj->mAttribs['rc_bot'];
 822                         $userlinks[$u]++;
 823                 }
 824
 825                 # Sort the list and convert to text
 826                 krsort( $userlinks );
 827                 asort( $userlinks );
 828                 $users = array();
 829                 foreach( $userlinks as $userlink => $count) {
 830                         $text = $userlink;
 831                         $text .= $this->getLang()->getDirMark();
 832                         if( $count > 1 ) {
 833                                 $text .= ' (' . $this->getLang()->formatNum( $count ) . '×)';
 834                         }
 835                         array_push( $users, $text );
 836                 }
 837
 838                 $users = ' <span class="changedby">[' .
 839                         implode( $this->message['semicolon-separator'], $users ) . ']</span>';
 840
 841                 # Title for <a> tags
 842                 $expandTitle = htmlspecialchars( wfMsg( 'rc-enhanced-expand' ) );
 843                 $closeTitle = htmlspecialchars( wfMsg( 'rc-enhanced-hide' ) );
 844
 845                 $tl = "<span class='mw-collapsible-toggle'>"
 846                         . "<span class='mw-rc-openarrow'>"
 847                         . "<a href='#' title='$expandTitle'>{$this->sideArrow()}</a>"
 848                         . "</span><span class='mw-rc-closearrow'>"
 849                         . "<a href='#' title='$closeTitle'>{$this->downArrow()}</a>"
 850                         . "</span></span>";
 851                 $r .= "<td>$tl</td>";
 852
 853                 # Main line
 854                 $r .= '<td class="mw-enhanced-rc">' . $this->recentChangesFlags( array(
 855                         'newpage' => $isnew,
 856                         'minor' => false,
 857                         'unpatrolled' => $unpatrolled,
 858                         'bot' => $bot ,
 859                 ) );
 860
 861                 # Timestamp
 862                 $r .= '&#160;'.$block[0]->timestamp.'&#160;</td><td>';
 863
 864                 # Article link
 865                 if( $namehidden ) {
 866                         $r .= ' <span class="history-deleted">' . wfMsgHtml( 'rev-deleted-event' ) . '</span>';
 867                 } elseif( $allLogs ) {
 868                         $r .= $this->maybeWatchedLink( $block[0]->link, $block[0]->watched );
 869                 } else {
 870                         $this->insertArticleLink( $r, $block[0], $block[0]->unpatrolled, $block[0]->watched );
 871                 }
 872
 873                 $r .= $this->getLang()->getDirMark();
 874
 875                 $queryParams['curid'] = $curId;
 876                 # Changes message
 877                 $n = count($block);
 878                 static $nchanges = array();
 879                 if ( !isset( $nchanges[$n] ) ) {
 880                         $nchanges[$n] = wfMsgExt( 'nchanges', array( 'parsemag', 'escape' ), $this->getLang()->formatNum( $n ) );
 881                 }
 882                 # Total change link
 883                 $r .= ' ';
 884                 if( !$allLogs ) {
 885                         $r .= '(';
 886                         if( !ChangesList::userCan( $rcObj, Revision::DELETED_TEXT ) ) {
 887                                 $r .= $nchanges[$n];
 888                         } elseif( $isnew ) {
 889                                 $r .= $nchanges[$n];
 890                         } else {
 891                                 $params = $queryParams;
 892                                 $params['diff'] = $currentRevision;
 893                                 $params['oldid'] = $oldid;
 894
 895                                 $r .= Linker::link(
 896                                         $block[0]->getTitle(),
 897                                         $nchanges[$n],
 898                                         array(),
 899                                         $params,
 900                                         array( 'known', 'noclasses' )
 901                                 );
 902                         }
 903                 }
 904
 905                 # History
 906                 if( $allLogs ) {
 907                         // don't show history link for logs
 908                 } elseif( $namehidden || !$block[0]->getTitle()->exists() ) {
 909                         $r .= $this->message['pipe-separator'] . $this->message['hist'] . ')';
 910                 } else {
 911                         $params = $queryParams;
 912                         $params['action'] = 'history';
 913
 914                         $r .= $this->message['pipe-separator'] .
 915                                 Linker::linkKnown(
 916                                         $block[0]->getTitle(),
 917                                         $this->message['hist'],
 918                                         array(),
 919                                         $params
 920                                 ) . ')';
 921                 }
 922                 $r .= ' . . ';
 923
 924                 # Character difference (does not apply if only log items)
 925                 if( $wgRCShowChangedSize && !$allLogs ) {
 926                         $last = 0;
 927                         $first = count($block) - 1;
 928                         # Some events (like logs) have an "empty" size, so we need to skip those...
 929                         while( $last < $first && $block[$last]->mAttribs['rc_new_len'] === null ) {
 930                                 $last++;
 931                         }
 932                         while( $first > $last && $block[$first]->mAttribs['rc_old_len'] === null ) {
 933                                 $first--;
 934                         }
 935                         # Get net change
 936                         $chardiff = $rcObj->getCharacterDifference( $block[$first]->mAttribs['rc_old_len'],
 937                                 $block[$last]->mAttribs['rc_new_len'] );
 938
 939                         if( $chardiff == '' ) {
 940                                 $r .= ' ';
 941                         } else {
 942                                 $r .= ' ' . $chardiff. ' . . ';
 943                         }
 944                 }
 945
 946                 $r .= $users;
 947                 $r .= $this->numberofWatchingusers($block[0]->numberofWatchingusers);
 948
 949                 # Sub-entries
 950                 foreach( $block as $rcObj ) {
 951                         # Classes to apply -- TODO implement
 952                         $classes = array();
 953                         $type = $rcObj->mAttribs['rc_type'];
 954
 955                         #$r .= '<tr><td valign="top">'.$this->spacerArrow();
 956                         $r .= '<tr><td></td><td class="mw-enhanced-rc">';
 957                         $r .= $this->recentChangesFlags( array(
 958                                 'newpage' => $rcObj->mAttribs['rc_new'],
 959                                 'minor' => $rcObj->mAttribs['rc_minor'],
 960                                 'unpatrolled' => $rcObj->unpatrolled,
 961                                 'bot' => $rcObj->mAttribs['rc_bot'],
 962                         ) );
 963                         $r .= '&#160;</td><td class="mw-enhanced-rc-nested"><span class="mw-enhanced-rc-time">';
 964
 965                         $params = $queryParams;
 966
 967                         if( $rcObj->mAttribs['rc_this_oldid'] != 0 ) {
 968                                 $params['oldid'] = $rcObj->mAttribs['rc_this_oldid'];
 969                         }
 970
 971                         # Log timestamp
 972                         if( $type == RC_LOG ) {
 973                                 $link = $rcObj->timestamp;
 974                         # Revision link
 975                         } elseif( !ChangesList::userCan($rcObj,Revision::DELETED_TEXT) ) {
 976                                 $link = '<span class="history-deleted">'.$rcObj->timestamp.'</span> ';
 977                         } else {
 978                                 if ( $rcObj->unpatrolled && $type == RC_NEW) {
 979                                         $params['rcid'] = $rcObj->mAttribs['rc_id'];
 980                                 }
 981
 982                                 $link = Linker::linkKnown(
 983                                                 $rcObj->getTitle(),
 984                                                 $rcObj->timestamp,
 985                                                 array(),
 986                                                 $params
 987                                         );
 988                                 if( $this->isDeleted($rcObj,Revision::DELETED_TEXT) )
 989                                         $link = '<span class="history-deleted">'.$link.'</span> ';
 990                         }
 991                         $r .= $link . '</span>';
 992
 993                         if ( !$type == RC_LOG || $type == RC_NEW ) {
 994                                 $r .= ' (';
 995                                 $r .= $rcObj->curlink;
 996                                 $r .= $this->message['pipe-separator'];
 997                                 $r .= $rcObj->lastlink;
 998                                 $r .= ')';
 999                         }
1000                         $r .= ' . . ';
1001
1002                         # Character diff
1003                         if( $wgRCShowChangedSize && $rcObj->getCharacterDifference() ) {
1004                                 $r .= $rcObj->getCharacterDifference() . ' . . ' ;
1005                         }
1006
1007                         if ( $rcObj->mAttribs['rc_type'] == RC_LOG ) {
1008                                 $r .= $this->insertLogEntry( $rcObj );
1009                         } else {
1010                                 # User links
1011                                 $r .= $rcObj->userlink;
1012                                 $r .= $rcObj->usertalklink;
1013                                 $r .= $this->insertComment( $rcObj );
1014                         }
1015
1016                         # Rollback
1017                         $this->insertRollback( $r, $rcObj );
1018                         # Tags
1019                         $this->insertTags( $r, $rcObj, $classes );
1020
1021                         $r .= "</td></tr>\n";
1022                 }
1023                 $r .= "</table>\n";
1024
1025                 $this->rcCacheIndex++;
1026
1027                 wfProfileOut( __METHOD__ );
1028
1029                 return $r;
1030         }
1031
1032         /**
1033          * Generate HTML for an arrow or placeholder graphic
1034          * @param $dir String: one of '', 'd', 'l', 'r'
1035          * @param $alt String: text
1036          * @param $title String: text
1037          * @return String: HTML <img> tag
1038          */
1039         protected function arrow( $dir, $alt='', $title='' ) {
1040                 global $wgStylePath;
1041                 $encUrl = htmlspecialchars( $wgStylePath . '/common/images/Arr_' . $dir . '.png' );
1042                 $encAlt = htmlspecialchars( $alt );
1043                 $encTitle = htmlspecialchars( $title );
1044                 return "<img src=\"$encUrl\" width=\"12\" height=\"12\" alt=\"$encAlt\" title=\"$encTitle\" />";
1045         }
1046
1047         /**
1048          * Generate HTML for a right- or left-facing arrow,
1049          * depending on language direction.
1050          * @return String: HTML <img> tag
1051          */
1052         protected function sideArrow() {
1053                 global $wgContLang;
1054                 $dir = $wgContLang->isRTL() ? 'l' : 'r';
1055                 return $this->arrow( $dir, '+', wfMsg( 'rc-enhanced-expand' ) );
1056         }
1057
1058         /**
1059          * Generate HTML for a down-facing arrow
1060          * depending on language direction.
1061          * @return String: HTML <img> tag
1062          */
1063         protected function downArrow() {
1064                 return $this->arrow( 'd', '-', wfMsg( 'rc-enhanced-hide' ) );
1065         }
1066
1067         /**
1068          * Generate HTML for a spacer image
1069          * @return String: HTML <img> tag
1070          */
1071         protected function spacerArrow() {
1072                 return $this->arrow( '', codepointToUtf8( 0xa0 ) ); // non-breaking space
1073         }
1074
1075         /**
1076          * Enhanced RC ungrouped line.
1077          *
1078          * @param $rcObj RecentChange
1079          * @return String: a HTML formatted line (generated using $r)
1080          */
1081         protected function recentChangesBlockLine( $rcObj ) {
1082                 global $wgRCShowChangedSize;
1083
1084                 wfProfileIn( __METHOD__ );
1085                 $query['curid'] = $rcObj->mAttribs['rc_cur_id'];
1086
1087                 $type = $rcObj->mAttribs['rc_type'];
1088                 $logType = $rcObj->mAttribs['rc_log_type'];
1089                 if( $logType ) {
1090                         # Log entry
1091                         $classes = 'mw-enhanced-rc ' . Sanitizer::escapeClass( 'mw-changeslist-log-' . $logType . '-' . $rcObj->mAttribs['rc_title'] );
1092                 } else {
1093                         $classes = 'mw-enhanced-rc ' . Sanitizer::escapeClass( 'mw-changeslist-ns' . $rcObj->mAttribs['rc_namespace'] . '-' . $rcObj->mAttribs['rc_title'] );
1094                 }
1095                 $r = Html::openElement( 'table', array( 'class' => $classes ) ) .
1096                         Html::openElement( 'tr' );
1097
1098                 $r .= '<td class="mw-enhanced-rc">' . $this->spacerArrow();
1099                 # Flag and Timestamp
1100                 if( $type == RC_MOVE || $type == RC_MOVE_OVER_REDIRECT ) {
1101                         $r .= '&#160;&#160;&#160;&#160;'; // 4 flags -> 4 spaces
1102                 } else {
1103                         $r .= $this->recentChangesFlags( array(
1104                                 'newpage' => $type == RC_NEW,
1105                                 'mino' => $rcObj->mAttribs['rc_minor'],
1106                                 'unpatrolled' => $rcObj->unpatrolled,
1107                                 'bot' => $rcObj->mAttribs['rc_bot'],
1108                         ) );
1109                 }
1110                 $r .= '&#160;'.$rcObj->timestamp.'&#160;</td><td>';
1111                 # Article or log link
1112                 if( $logType ) {
1113                         $logtitle = SpecialPage::getTitleFor( 'Log', $logType );
1114                         $logname = LogPage::logName( $logType );
1115                         $r .= '(' . Linker::linkKnown( $logtitle, htmlspecialchars( $logname ) ) . ')';
1116                 } else {
1117                         $this->insertArticleLink( $r, $rcObj, $rcObj->unpatrolled, $rcObj->watched );
1118                 }
1119                 # Diff and hist links
1120                 if ( $type != RC_LOG ) {
1121                         $r .= ' ('. $rcObj->difflink . $this->message['pipe-separator'];
1122                         $query['action'] = 'history';
1123                         $r .= Linker::linkKnown(
1124                                 $rcObj->getTitle(),
1125                                 $this->message['hist'],
1126                                 array(),
1127                                 $query
1128                         ) . ')';
1129                 }
1130                 $r .= ' . . ';
1131                 # Character diff
1132                 if( $wgRCShowChangedSize && ($cd = $rcObj->getCharacterDifference()) ) {
1133                         $r .= "$cd . . ";
1134                 }
1135
1136                 if ( $type == RC_LOG ) {
1137                         $r .= $this->insertLogEntry( $rcObj );
1138                 } else {
1139                         $r .= ' '.$rcObj->userlink . $rcObj->usertalklink;
1140                         $r .= $this->insertComment( $rcObj );
1141                         $r .= $this->insertRollback( $r, $rcObj );
1142                 }
1143
1144                 # Tags
1145                 $classes = explode( ' ', $classes );
1146                 $this->insertTags( $r, $rcObj, $classes );
1147                 # Show how many people are watching this if enabled
1148                 $r .= $this->numberofWatchingusers($rcObj->numberofWatchingusers);
1149
1150                 $r .= "</td></tr></table>\n";
1151
1152                 wfProfileOut( __METHOD__ );
1153
1154                 return $r;
1155         }
1156
1157         /**
1158          * If enhanced RC is in use, this function takes the previously cached
1159          * RC lines, arranges them, and outputs the HTML
1160          *
1161          * @return string
1162          */
1163         protected function recentChangesBlock() {
1164                 if( count ( $this->rc_cache ) == 0 ) {
1165                         return '';
1166                 }
1167
1168                 wfProfileIn( __METHOD__ );
1169
1170                 $blockOut = '';
1171                 foreach( $this->rc_cache as $block ) {
1172                         if( count( $block ) < 2 ) {
1173                                 $blockOut .= $this->recentChangesBlockLine( array_shift( $block ) );
1174                         } else {
1175                                 $blockOut .= $this->recentChangesBlockGroup( $block );
1176                         }
1177                 }
1178
1179                 wfProfileOut( __METHOD__ );
1180
1181                 return '<div>'.$blockOut.'</div>';
1182         }
1183
1184         /**
1185          * Returns text for the end of RC
1186          * If enhanced RC is in use, returns pretty much all the text
1187          */
1188         public function endRecentChangesList() {
1189                 return $this->recentChangesBlock() . parent::endRecentChangesList();
1190         }
1191
1192 }