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