includes/ChangesList.php

   1 <?php
   2
   3 /**
   4  * @todo document
   5  */
   6 class RCCacheEntry extends RecentChange {
   7         var $secureName, $link;
   8         var $curlink , $difflink, $lastlink, $usertalklink, $versionlink;
   9         var $userlink, $timestamp, $watched;
  10
  11         static function newFromParent( $rc ) {
  12                 $rc2 = new RCCacheEntry;
  13                 $rc2->mAttribs = $rc->mAttribs;
  14                 $rc2->mExtra = $rc->mExtra;
  15                 return $rc2;
  16         }
  17 }
  18
  19 /**
  20  * Class to show various lists of changes:
  21  * - what links here
  22  * - related changes
  23  * - recent changes
  24  */
  25 class ChangesList {
  26         # Called by history lists and recent changes
  27         public $skin;
  28         protected $watchlist = false;
  29
  30         /**
  31         * Changeslist contructor
  32         * @param Skin $skin
  33         */
  34         public function __construct( &$skin ) {
  35                 $this->skin =& $skin;
  36                 $this->preCacheMessages();
  37         }
  38
  39         /**
  40          * Fetch an appropriate changes list class for the specified user
  41          * Some users might want to use an enhanced list format, for instance
  42          *
  43          * @param $user User to fetch the list class for
  44          * @return ChangesList derivative
  45          */
  46         public static function newFromUser( &$user ) {
  47                 $sk = $user->getSkin();
  48                 $list = NULL;
  49                 if( wfRunHooks( 'FetchChangesList', array( &$user, &$sk, &$list ) ) ) {
  50                         return $user->getOption( 'usenewrc' ) ?
  51                                 new EnhancedChangesList( $sk ) : new OldChangesList( $sk );
  52                 } else {
  53                         return $list;
  54                 }
  55         }
  56
  57         /**
  58          * Sets the list to use a <li class="watchlist-(namespace)-(page)"> tag
  59          * @param bool $value
  60          */
  61         public function setWatchlistDivs( $value = true ) {
  62                 $this->watchlist = $value;
  63         }
  64
  65         /**
  66          * As we use the same small set of messages in various methods and that
  67          * they are called often, we call them once and save them in $this->message
  68          */
  69         private function preCacheMessages() {
  70                 if( !isset( $this->message ) ) {
  71                         foreach ( explode( ' ', 'cur diff hist last blocklink history ' .
  72                         'semicolon-separator pipe-separator' ) as $msg ) {
  73                                 $this->message[$msg] = wfMsgExt( $msg, array( 'escapenoentities' ) );
  74                         }
  75                 }
  76         }
  77
  78
  79         /**
  80          * Returns the appropriate flags for new page, minor change and patrolling
  81          * @param bool $new
  82          * @param bool $minor
  83          * @param bool $patrolled
  84          * @param string $nothing, string to use for empty space
  85          * @param bool $bot
  86          * @return string
  87          */
  88         protected function recentChangesFlags( $new, $minor, $patrolled, $nothing = '&nbsp;', $bot = false ) {
  89                 $f = $new ? self::flag( 'newpage' ) : $nothing;
  90                 $f .= $minor ? self::flag( 'minor' ) : $nothing;
  91                 $f .= $bot ? self::flag( 'bot' ) : $nothing;
  92                 $f .= $patrolled ? self::flag( 'unpatrolled' ) : $nothing;
  93                 return $f;
  94         }
  95
  96         /**
  97          * Provide the <abbr> element appropriate to a given abbreviated flag,
  98          * namely the flag indicating a new page, a minor edit, a bot edit, or an
  99          * unpatrolled edit.  By default in English it will contain "N", "m", "b",
 100          * "!" respectively, plus it will have an appropriate title and class.
 101          *
 102          * @param $key string 'newpage', 'unpatrolled', 'minor', or 'bot'
 103          * @return string Raw HTML
 104          */
 105         public static function flag( $key ) {
 106                 static $messages = null;
 107                 if ( is_null( $messages ) ) {
 108                         foreach ( explode( ' ', 'minoreditletter boteditletter newpageletter ' .
 109                         'unpatrolledletter recentchanges-label-minor recentchanges-label-bot ' .
 110                         'recentchanges-label-newpage recentchanges-label-unpatrolled' ) as $msg ) {
 111                                 $messages[$msg] = wfMsgExt( $msg, 'escapenoentities' );
 112                         }
 113                 }
 114                 # Inconsistent naming, bleh
 115                 if ( $key == 'newpage' || $key == 'unpatrolled' ) {
 116                         $key2 = $key;
 117                 } else {
 118                         $key2 = $key . 'edit';
 119                 }
 120                 return "<abbr class=\"$key\" title=\""
 121                         . $messages["recentchanges-label-$key"] . "\">"
 122                         . $messages["${key2}letter"]
 123                         . '</abbr>';
 124         }
 125
 126         /**
 127          * Returns text for the start of the tabular part of RC
 128          * @return string
 129          */
 130         public function beginRecentChangesList() {
 131                 $this->rc_cache = array();
 132                 $this->rcMoveIndex = 0;
 133                 $this->rcCacheIndex = 0;
 134                 $this->lastdate = '';
 135                 $this->rclistOpen = false;
 136                 return '';
 137         }
 138
 139         /**
 140          * Show formatted char difference
 141          * @param int $old bytes
 142          * @param int $new bytes
 143          * @returns string
 144          */
 145         public static function showCharacterDifference( $old, $new ) {
 146                 global $wgRCChangedSizeThreshold, $wgLang, $wgMiserMode;
 147                 $szdiff = $new - $old;
 148
 149                 $code = $wgLang->getCode();
 150                 static $fastCharDiff = array();
 151                 if ( !isset($fastCharDiff[$code]) ) {
 152                         $fastCharDiff[$code] = $wgMiserMode || wfMsgNoTrans( 'rc-change-size' ) === '$1';
 153                 }
 154
 155                 $formatedSize = $wgLang->formatNum($szdiff);
 156
 157                 if ( !$fastCharDiff[$code] ) {
 158                         $formatedSize = wfMsgExt( 'rc-change-size', array( 'parsemag', 'escape' ), $formatedSize );
 159                 }
 160
 161                 if( abs( $szdiff ) > abs( $wgRCChangedSizeThreshold ) ) {
 162                         $tag = 'strong';
 163                 } else {
 164                     $tag = 'span';
 165                 }
 166                 if( $szdiff === 0 ) {
 167                         return "<$tag class='mw-plusminus-null'>($formatedSize)</$tag>";
 168                 } elseif( $szdiff > 0 ) {
 169                         return "<$tag class='mw-plusminus-pos'>(+$formatedSize)</$tag>";
 170             } else {
 171                         return "<$tag class='mw-plusminus-neg'>($formatedSize)</$tag>";
 172                 }
 173         }
 174
 175         /**
 176          * Returns text for the end of RC
 177          * @return string
 178          */
 179         public function endRecentChangesList() {
 180                 if( $this->rclistOpen ) {
 181                         return "</ul>\n";
 182                 } else {
 183                         return '';
 184                 }
 185         }
 186
 187         protected function insertMove( &$s, $rc ) {
 188                 # Diff
 189                 $s .= '(' . $this->message['diff'] . ') (';
 190                 # Hist
 191                 $s .= $this->skin->link(
 192                         $rc->getMovedToTitle(),
 193                         $this->message['hist'],
 194                         array(),
 195                         array( 'action' => 'history' ),
 196                         array( 'known', 'noclasses' )
 197                 ) . ') . . ';
 198                 # "[[x]] moved to [[y]]"
 199                 $msg = ( $rc->mAttribs['rc_type'] == RC_MOVE ) ? '1movedto2' : '1movedto2_redir';
 200                 $s .= wfMsg(
 201                         $msg,
 202                         $this->skin->link(
 203                                 $rc->getTitle(),
 204                                 null,
 205                                 array(),
 206                                 array( 'redirect' => 'no' ),
 207                                 array( 'known', 'noclasses' )
 208                         ),
 209                         $this->skin->link(
 210                                 $rc->getMovedToTitle(),
 211                                 null,
 212                                 array(),
 213                                 array(),
 214                                 array( 'known', 'noclasses' )
 215                         )
 216                 );
 217         }
 218
 219         protected function insertDateHeader( &$s, $rc_timestamp ) {
 220                 global $wgLang;
 221                 # Make date header if necessary
 222                 $date = $wgLang->date( $rc_timestamp, true, true );
 223                 if( $date != $this->lastdate ) {
 224                         if( '' != $this->lastdate ) {
 225                                 $s .= "</ul>\n";
 226                         }
 227                         $s .= Xml::element( 'h4', null, $date ) . "\n<ul class=\"special\">";
 228                         $this->lastdate = $date;
 229                         $this->rclistOpen = true;
 230                 }
 231         }
 232
 233         protected function insertLog( &$s, $title, $logtype ) {
 234                 $logname = LogPage::logName( $logtype );
 235                 $s .= '(' . $this->skin->link(
 236                         $title,
 237                         $logname,
 238                         array(),
 239                         array(),
 240                         array( 'known', 'noclasses' )
 241                 ) . ')';
 242         }
 243
 244         protected function insertDiffHist( &$s, &$rc, $unpatrolled ) {
 245                 # Diff link
 246                 if( $rc->mAttribs['rc_type'] == RC_NEW || $rc->mAttribs['rc_type'] == RC_LOG ) {
 247                         $diffLink = $this->message['diff'];
 248                 } else if( !$this->userCan($rc,Revision::DELETED_TEXT) ) {
 249                         $diffLink = $this->message['diff'];
 250                 } else {
 251                         $query = array(
 252                                 'curid' => $rc->mAttribs['rc_cur_id'],
 253                                 'diff'  => $rc->mAttribs['rc_this_oldid'],
 254                                 'oldid' => $rc->mAttribs['rc_last_oldid']
 255                         );
 256
 257                         if( $unpatrolled ) {
 258                                 $query['rcid'] = $rc->mAttribs['rc_id'];
 259                         };
 260
 261                         $diffLink = $this->skin->link(
 262                                 $rc->getTitle(),
 263                                 $this->message['diff'],
 264                                 array( 'tabindex' => $rc->counter ),
 265                                 $query,
 266                                 array( 'known', 'noclasses' )
 267                         );
 268                 }
 269                 $s .= '('.$diffLink.') (';
 270                 # History link
 271                 $s .= $this->skin->link(
 272                         $rc->getTitle(),
 273                         $this->message['hist'],
 274                         array(),
 275                         array(
 276                                 'curid' => $rc->mAttribs['rc_cur_id'],
 277                                 'action' => 'history'
 278                         ),
 279                         array( 'known', 'noclasses' )
 280                 );
 281                 $s .= ') . . ';
 282         }
 283
 284         protected function insertArticleLink( &$s, &$rc, $unpatrolled, $watched ) {
 285                 global $wgContLang;
 286                 # If it's a new article, there is no diff link, but if it hasn't been
 287                 # patrolled yet, we need to give users a way to do so
 288                 $params = array();
 289
 290                 if ( $unpatrolled && $rc->mAttribs['rc_type'] == RC_NEW ) {
 291                         $params['rcid'] = $rc->mAttribs['rc_id'];
 292                 }
 293
 294                 if( $this->isDeleted($rc,Revision::DELETED_TEXT) ) {
 295                         $articlelink = $this->skin->link(
 296                                 $rc->getTitle(),
 297                                 null,
 298                                 array(),
 299                                 $params,
 300                                 array( 'known', 'noclasses' )
 301                         );
 302                         $articlelink = '<span class="history-deleted">' . $articlelink . '</span>';
 303                 } else {
 304                         $articlelink = ' '. $this->skin->link(
 305                                 $rc->getTitle(),
 306                                 null,
 307                                 array(),
 308                                 $params,
 309                                 array( 'known', 'noclasses' )
 310                         );
 311                 }
 312                 # Bolden pages watched by this user
 313                 if( $watched ) {
 314                         $articlelink = "<strong class=\"mw-watched\">{$articlelink}</strong>";
 315                 }
 316                 # RTL/LTR marker
 317                 $articlelink .= $wgContLang->getDirMark();
 318
 319                 wfRunHooks( 'ChangesListInsertArticleLink',
 320                         array(&$this, &$articlelink, &$s, &$rc, $unpatrolled, $watched) );
 321
 322                 $s .= " $articlelink";
 323         }
 324
 325         protected function insertTimestamp( &$s, $rc ) {
 326                 global $wgLang;
 327                 $s .= $this->message['semicolon-separator'] .
 328                         $wgLang->time( $rc->mAttribs['rc_timestamp'], true, true ) . ' . . ';
 329         }
 330
 331         /** Insert links to user page, user talk page and eventually a blocking link */
 332         public function insertUserRelatedLinks( &$s, &$rc ) {
 333                 if( $this->isDeleted( $rc, Revision::DELETED_USER ) ) {
 334                    $s .= ' <span class="history-deleted">' . wfMsgHtml( 'rev-deleted-user' ) . '</span>';
 335                 } else {
 336                   $s .= $this->skin->userLink( $rc->mAttribs['rc_user'], $rc->mAttribs['rc_user_text'] );
 337                   $s .= $this->skin->userToolLinks( $rc->mAttribs['rc_user'], $rc->mAttribs['rc_user_text'] );
 338                 }
 339         }
 340
 341         /** insert a formatted action */
 342         protected function insertAction( &$s, &$rc ) {
 343                 if( $rc->mAttribs['rc_type'] == RC_LOG ) {
 344                         if( $this->isDeleted( $rc, LogPage::DELETED_ACTION ) ) {
 345                                 $s .= ' <span class="history-deleted">' . wfMsgHtml( 'rev-deleted-event' ) . '</span>';
 346                         } else {
 347                                 $s .= ' '.LogPage::actionText( $rc->mAttribs['rc_log_type'], $rc->mAttribs['rc_log_action'],
 348                                         $rc->getTitle(), $this->skin, LogPage::extractParams( $rc->mAttribs['rc_params'] ), true, true );
 349                         }
 350                 }
 351         }
 352
 353         /** insert a formatted comment */
 354         protected function insertComment( &$s, &$rc ) {
 355                 if( $rc->mAttribs['rc_type'] != RC_MOVE && $rc->mAttribs['rc_type'] != RC_MOVE_OVER_REDIRECT ) {
 356                         if( $this->isDeleted( $rc, Revision::DELETED_COMMENT ) ) {
 357                                 $s .= ' <span class="history-deleted">' . wfMsgHtml( 'rev-deleted-comment' ) . '</span>';
 358                         } else {
 359                                 $s .= $this->skin->commentBlock( $rc->mAttribs['rc_comment'], $rc->getTitle() );
 360                         }
 361                 }
 362         }
 363
 364         /**
 365          * Check whether to enable recent changes patrol features
 366          * @return bool
 367          */
 368         public static function usePatrol() {
 369                 global $wgUser;
 370                 return $wgUser->useRCPatrol();
 371         }
 372
 373         /**
 374          * Returns the string which indicates the number of watching users
 375          */
 376         protected function numberofWatchingusers( $count ) {
 377                 global $wgLang;
 378                 static $cache = array();
 379                 if( $count > 0 ) {
 380                         if( !isset( $cache[$count] ) ) {
 381                                 $cache[$count] = wfMsgExt( 'number_of_watching_users_RCview',
 382                                         array('parsemag', 'escape' ), $wgLang->formatNum( $count ) );
 383                         }
 384                         return $cache[$count];
 385                 } else {
 386                         return '';
 387                 }
 388         }
 389
 390         /**
 391          * Determine if said field of a revision is hidden
 392          * @param RCCacheEntry $rc
 393          * @param int $field one of DELETED_* bitfield constants
 394          * @return bool
 395          */
 396         public static function isDeleted( $rc, $field ) {
 397                 return ( $rc->mAttribs['rc_deleted'] & $field ) == $field;
 398         }
 399
 400         /**
 401          * Determine if the current user is allowed to view a particular
 402          * field of this revision, if it's marked as deleted.
 403          * @param RCCacheEntry $rc
 404          * @param int $field
 405          * @return bool
 406          */
 407         public static function userCan( $rc, $field ) {
 408                 if( ( $rc->mAttribs['rc_deleted'] & $field ) == $field ) {
 409                         global $wgUser;
 410                         $permission = ( $rc->mAttribs['rc_deleted'] & Revision::DELETED_RESTRICTED ) == Revision::DELETED_RESTRICTED
 411                                 ? 'suppressrevision'
 412                                 : 'deleterevision';
 413                         wfDebug( "Checking for $permission due to $field match on {$rc->mAttribs['rc_deleted']}\n" );
 414                         return $wgUser->isAllowed( $permission );
 415                 } else {
 416                         return true;
 417                 }
 418         }
 419
 420         protected function maybeWatchedLink( $link, $watched = false ) {
 421                 if( $watched ) {
 422                         return '<strong class="mw-watched">' . $link . '</strong>';
 423                 } else {
 424                         return '<span class="mw-rc-unwatched">' . $link . '</span>';
 425                 }
 426         }
 427
 428         /** Inserts a rollback link */
 429         public function insertRollback( &$s, &$rc ) {
 430                 global $wgUser;
 431                 if( !$rc->mAttribs['rc_new'] && $rc->mAttribs['rc_this_oldid'] && $rc->mAttribs['rc_cur_id'] ) {
 432                         $page = $rc->getTitle();
 433                         /** Check for rollback and edit permissions, disallow special pages, and only
 434                           * show a link on the top-most revision */
 435                         if ($wgUser->isAllowed('rollback') && $rc->mAttribs['page_latest'] == $rc->mAttribs['rc_this_oldid'] )
 436                         {
 437                                 $rev = new Revision( array(
 438                                         'id'        => $rc->mAttribs['rc_this_oldid'],
 439                                         'user'      => $rc->mAttribs['rc_user'],
 440                                         'user_text' => $rc->mAttribs['rc_user_text'],
 441                                         'deleted'   => $rc->mAttribs['rc_deleted']
 442                                 ) );
 443                                 $rev->setTitle( $page );
 444                                 $s .= ' '.$this->skin->generateRollback( $rev );
 445                         }
 446                 }
 447         }
 448
 449         public function insertTags( &$s, &$rc, &$classes ) {
 450                 if ( empty($rc->mAttribs['ts_tags']) )
 451                         return;
 452
 453                 list($tagSummary, $newClasses) = ChangeTags::formatSummaryRow( $rc->mAttribs['ts_tags'], 'changeslist' );
 454                 $classes = array_merge( $classes, $newClasses );
 455                 $s .= ' ' . $tagSummary;
 456         }
 457
 458         public function insertExtra( &$s, &$rc, &$classes ) {
 459                 ## Empty, used for subclassers to add anything special.
 460         }
 461 }
 462
 463
 464 /**
 465  * Generate a list of changes using the good old system (no javascript)
 466  */
 467 class OldChangesList extends ChangesList {
 468         /**
 469          * Format a line using the old system (aka without any javascript).
 470          */
 471         public function recentChangesLine( &$rc, $watched = false, $linenumber = NULL ) {
 472                 global $wgLang, $wgRCShowChangedSize, $wgUser;
 473                 wfProfileIn( __METHOD__ );
 474                 # Should patrol-related stuff be shown?
 475                 $unpatrolled = $wgUser->useRCPatrol() && !$rc->mAttribs['rc_patrolled'];
 476
 477                 $dateheader = ''; // $s now contains only <li>...</li>, for hooks' convenience.
 478                 $this->insertDateHeader( $dateheader, $rc->mAttribs['rc_timestamp'] );
 479
 480                 $s = '';
 481                 $classes = array();
 482                 // use mw-line-even/mw-line-odd class only if linenumber is given (feature from bug 14468)
 483                 if( $linenumber ) {
 484                         if( $linenumber & 1 ) {
 485                                 $classes[] = 'mw-line-odd';
 486                         }
 487                         else {
 488                                 $classes[] = 'mw-line-even';
 489                         }
 490                 }
 491
 492                 // Moved pages
 493                 if( $rc->mAttribs['rc_type'] == RC_MOVE || $rc->mAttribs['rc_type'] == RC_MOVE_OVER_REDIRECT ) {
 494                         $this->insertMove( $s, $rc );
 495                 // Log entries
 496                 } elseif( $rc->mAttribs['rc_log_type'] ) {
 497                         $logtitle = Title::newFromText( 'Log/'.$rc->mAttribs['rc_log_type'], NS_SPECIAL );
 498                         $this->insertLog( $s, $logtitle, $rc->mAttribs['rc_log_type'] );
 499                 // Log entries (old format) or log targets, and special pages
 500                 } elseif( $rc->mAttribs['rc_namespace'] == NS_SPECIAL ) {
 501                         list( $name, $subpage ) = SpecialPage::resolveAliasWithSubpage( $rc->mAttribs['rc_title'] );
 502                         if( $name == 'Log' ) {
 503                                 $this->insertLog( $s, $rc->getTitle(), $subpage );
 504                         }
 505                 // Regular entries
 506                 } else {
 507                         $this->insertDiffHist( $s, $rc, $unpatrolled );
 508                         # M, N, b and ! (minor, new, bot and unpatrolled)
 509                         $s .= $this->recentChangesFlags( $rc->mAttribs['rc_new'], $rc->mAttribs['rc_minor'],
 510                                 $unpatrolled, '', $rc->mAttribs['rc_bot'] );
 511                         $this->insertArticleLink( $s, $rc, $unpatrolled, $watched );
 512                 }
 513                 # Edit/log timestamp
 514                 $this->insertTimestamp( $s, $rc );
 515                 # Bytes added or removed
 516                 if( $wgRCShowChangedSize ) {
 517                         $cd = $rc->getCharacterDifference();
 518                         if( $cd != '' ) {
 519                                 $s .= "$cd  . . ";
 520                         }
 521                 }
 522                 # User tool links
 523                 $this->insertUserRelatedLinks( $s, $rc );
 524                 # Log action text (if any)
 525                 $this->insertAction( $s, $rc );
 526                 # Edit or log comment
 527                 $this->insertComment( $s, $rc );
 528                 # Tags
 529                 $this->insertTags( $s, $rc, $classes );
 530                 # Rollback
 531                 $this->insertRollback( $s, $rc );
 532                 # For subclasses
 533                 $this->insertExtra( $s, $rc, $classes );
 534
 535                 # How many users watch this page
 536                 if( $rc->numberofWatchingusers > 0 ) {
 537                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_RCview',
 538                                 array( 'parsemag', 'escape' ), $wgLang->formatNum( $rc->numberofWatchingusers ) );
 539                 }
 540
 541                 if( $this->watchlist ) {
 542                         $classes[] = Sanitizer::escapeClass( 'watchlist-'.$rc->mAttribs['rc_namespace'].'-'.$rc->mAttribs['rc_title'] );
 543                 }
 544
 545                 wfRunHooks( 'OldChangesListRecentChangesLine', array(&$this, &$s, $rc) );
 546
 547                 wfProfileOut( __METHOD__ );
 548                 return "$dateheader<li class=\"".implode( ' ', $classes )."\">".$s."</li>\n";
 549         }
 550 }
 551
 552
 553 /**
 554  * Generate a list of changes using an Enhanced system (uses javascript).
 555  */
 556 class EnhancedChangesList extends ChangesList {
 557         /**
 558         *  Add the JavaScript file for enhanced changeslist
 559         *  @ return string
 560         */
 561         public function beginRecentChangesList() {
 562                 global $wgStylePath, $wgJsMimeType, $wgStyleVersion;
 563                 $this->rc_cache = array();
 564                 $this->rcMoveIndex = 0;
 565                 $this->rcCacheIndex = 0;
 566                 $this->lastdate = '';
 567                 $this->rclistOpen = false;
 568                 $script = Xml::tags( 'script', array(
 569                         'type' => $wgJsMimeType,
 570                         'src' => $wgStylePath . "/common/enhancedchanges.js?$wgStyleVersion" ), '' );
 571                 return $script;
 572         }
 573         /**
 574          * Format a line for enhanced recentchange (aka with javascript and block of lines).
 575          */
 576         public function recentChangesLine( &$baseRC, $watched = false ) {
 577                 global $wgLang, $wgUser;
 578
 579                 wfProfileIn( __METHOD__ );
 580
 581                 # Create a specialised object
 582                 $rc = RCCacheEntry::newFromParent( $baseRC );
 583
 584                 # Extract fields from DB into the function scope (rc_xxxx variables)
 585                 // FIXME: Would be good to replace this extract() call with something
 586                 // that explicitly initializes variables.
 587                 extract( $rc->mAttribs );
 588                 $curIdEq = array( 'curid' => $rc_cur_id );
 589
 590                 # If it's a new day, add the headline and flush the cache
 591                 $date = $wgLang->date( $rc_timestamp, true );
 592                 $ret = '';
 593                 if( $date != $this->lastdate ) {
 594                         # Process current cache
 595                         $ret = $this->recentChangesBlock();
 596                         $this->rc_cache = array();
 597                         $ret .= Xml::element( 'h4', null, $date );
 598                         $this->lastdate = $date;
 599                 }
 600
 601                 # Should patrol-related stuff be shown?
 602                 if( $wgUser->useRCPatrol() ) {
 603                         $rc->unpatrolled = !$rc_patrolled;
 604                 } else {
 605                         $rc->unpatrolled = false;
 606                 }
 607
 608                 $showdifflinks = true;
 609                 # Make article link
 610                 // Page moves
 611                 if( $rc_type == RC_MOVE || $rc_type == RC_MOVE_OVER_REDIRECT ) {
 612                         $msg = ( $rc_type == RC_MOVE ) ? "1movedto2" : "1movedto2_redir";
 613                         $clink = wfMsg( $msg, $this->skin->linkKnown( $rc->getTitle(), null,
 614                                 array(), array( 'redirect' => 'no' ) ),
 615                                 $this->skin->linkKnown( $rc->getMovedToTitle() ) );
 616                 // New unpatrolled pages
 617                 } else if( $rc->unpatrolled && $rc_type == RC_NEW ) {
 618                         $clink = $this->skin->linkKnown( $rc->getTitle(), null, array(),
 619                                 array( 'rcid' => $rc_id ) );
 620                 // Log entries
 621                 } else if( $rc_type == RC_LOG ) {
 622                         if( $rc_log_type ) {
 623                                 $logtitle = SpecialPage::getTitleFor( 'Log', $rc_log_type );
 624                                 $clink = '(' . $this->skin->linkKnown( $logtitle,
 625                                         LogPage::logName($rc_log_type) ) . ')';
 626                         } else {
 627                                 $clink = $this->skin->link( $rc->getTitle() );
 628                         }
 629                         $watched = false;
 630                 // Log entries (old format) and special pages
 631                 } elseif( $rc_namespace == NS_SPECIAL ) {
 632                         list( $specialName, $logtype ) = SpecialPage::resolveAliasWithSubpage( $rc_title );
 633                         if ( $specialName == 'Log' ) {
 634                                 # Log updates, etc
 635                                 $logname = LogPage::logName( $logtype );
 636                                 $clink = '(' . $this->skin->linkKnown( $rc->getTitle(), $logname ) . ')';
 637                         } else {
 638                                 wfDebug( "Unexpected special page in recentchanges\n" );
 639                                 $clink = '';
 640                         }
 641                 // Edits
 642                 } else {
 643                         $clink = $this->skin->linkKnown( $rc->getTitle() );
 644                 }
 645
 646                 # Don't show unusable diff links
 647                 if ( !ChangesList::userCan($rc,Revision::DELETED_TEXT) ) {
 648                         $showdifflinks = false;
 649                 }
 650
 651                 $time = $wgLang->time( $rc_timestamp, true, true );
 652                 $rc->watched = $watched;
 653                 $rc->link = $clink;
 654                 $rc->timestamp = $time;
 655                 $rc->numberofWatchingusers = $baseRC->numberofWatchingusers;
 656
 657                 # Make "cur" and "diff" links.  Do not use link(), it is too slow if
 658                 # called too many times (50% of CPU time on RecentChanges!).
 659                 if( $rc->unpatrolled ) {
 660                         $rcIdQuery = array( 'rcid' => $rc_id );
 661                 } else {
 662                         $rcIdQuery = array();
 663                 }
 664                 $querycur = $curIdEq + array( 'diff' => '0', 'oldid' => $rc_this_oldid );
 665                 $querydiff = $curIdEq + array( 'diff' => $rc_this_oldid, 'oldid' =>
 666                         $rc_last_oldid ) + $rcIdQuery;
 667
 668                 if( !$showdifflinks ) {
 669                         $curLink = $this->message['cur'];
 670                         $diffLink = $this->message['diff'];
 671                 } else if( in_array( $rc_type, array(RC_NEW,RC_LOG,RC_MOVE,RC_MOVE_OVER_REDIRECT) ) ) {
 672                         if ( $rc_type != RC_NEW ) {
 673                                 $curLink = $this->message['cur'];
 674                         } else {
 675                                 $curUrl = htmlspecialchars( $rc->getTitle()->getLinkUrl( $querycur ) );
 676                                 $curLink = "<a href=\"$curUrl\" tabindex=\"{$baseRC->counter}\">{$this->message['cur']}</a>";
 677                         }
 678                         $diffLink = $this->message['diff'];
 679                 } else {
 680                         $diffUrl = htmlspecialchars( $rc->getTitle()->getLinkUrl( $querydiff ) );
 681                         $curUrl = htmlspecialchars( $rc->getTitle()->getLinkUrl( $querycur ) );
 682                         $diffLink = "<a href=\"$diffUrl\" tabindex=\"{$baseRC->counter}\">{$this->message['diff']}</a>";
 683                         $curLink = "<a href=\"$curUrl\" tabindex=\"{$baseRC->counter}\">{$this->message['cur']}</a>";
 684                 }
 685
 686                 # Make "last" link
 687                 if( !$showdifflinks || !$rc_last_oldid ) {
 688                         $lastLink = $this->message['last'];
 689                 } else if( $rc_type == RC_LOG || $rc_type == RC_MOVE || $rc_type == RC_MOVE_OVER_REDIRECT ) {
 690                         $lastLink = $this->message['last'];
 691                 } else {
 692                         $lastLink = $this->skin->linkKnown( $rc->getTitle(), $this->message['last'],
 693                                 array(), $curIdEq + array('diff' => $rc_this_oldid, 'oldid' => $rc_last_oldid) + $rcIdQuery );
 694                 }
 695
 696                 # Make user links
 697                 if( $this->isDeleted($rc,Revision::DELETED_USER) ) {
 698                         $rc->userlink = ' <span class="history-deleted">' . wfMsgHtml( 'rev-deleted-user' ) . '</span>';
 699                 } else {
 700                         $rc->userlink = $this->skin->userLink( $rc_user, $rc_user_text );
 701                         $rc->usertalklink = $this->skin->userToolLinks( $rc_user, $rc_user_text );
 702                 }
 703
 704                 $rc->lastlink = $lastLink;
 705                 $rc->curlink  = $curLink;
 706                 $rc->difflink = $diffLink;
 707
 708                 # Put accumulated information into the cache, for later display
 709                 # Page moves go on their own line
 710                 $title = $rc->getTitle();
 711                 $secureName = $title->getPrefixedDBkey();
 712                 if( $rc_type == RC_MOVE || $rc_type == RC_MOVE_OVER_REDIRECT ) {
 713                         # Use an @ character to prevent collision with page names
 714                         $this->rc_cache['@@' . ($this->rcMoveIndex++)] = array($rc);
 715                 } else {
 716                         # Logs are grouped by type
 717                         if( $rc_type == RC_LOG ){
 718                                 $secureName = SpecialPage::getTitleFor( 'Log', $rc_log_type )->getPrefixedDBkey();
 719                         }
 720                         if( !isset( $this->rc_cache[$secureName] ) ) {
 721                                 $this->rc_cache[$secureName] = array();
 722                         }
 723
 724                         array_push( $this->rc_cache[$secureName], $rc );
 725                 }
 726
 727                 wfProfileOut( __METHOD__ );
 728
 729                 return $ret;
 730         }
 731
 732         /**
 733          * Enhanced RC group
 734          */
 735         protected function recentChangesBlockGroup( $block ) {
 736                 global $wgLang, $wgContLang, $wgRCShowChangedSize;
 737
 738                 wfProfileIn( __METHOD__ );
 739
 740                 $r = '<table cellpadding="0" cellspacing="0" border="0" style="background: none"><tr>';
 741
 742                 # Collate list of users
 743                 $userlinks = array();
 744                 # Other properties
 745                 $unpatrolled = false;
 746                 $isnew = false;
 747                 $curId = $currentRevision = 0;
 748                 # Some catalyst variables...
 749                 $namehidden = true;
 750                 $allLogs = true;
 751                 foreach( $block as $rcObj ) {
 752                         $oldid = $rcObj->mAttribs['rc_last_oldid'];
 753                         if( $rcObj->mAttribs['rc_new'] ) {
 754                                 $isnew = true;
 755                         }
 756                         // If all log actions to this page were hidden, then don't
 757                         // give the name of the affected page for this block!
 758                         if( !$this->isDeleted( $rcObj, LogPage::DELETED_ACTION ) ) {
 759                                 $namehidden = false;
 760                         }
 761                         $u = $rcObj->userlink;
 762                         if( !isset( $userlinks[$u] ) ) {
 763                                 $userlinks[$u] = 0;
 764                         }
 765                         if( $rcObj->unpatrolled ) {
 766                                 $unpatrolled = true;
 767                         }
 768                         if( $rcObj->mAttribs['rc_type'] != RC_LOG ) {
 769                                 $allLogs = false;
 770                         }
 771                         # Get the latest entry with a page_id and oldid
 772                         # since logs may not have these.
 773                         if( !$curId && $rcObj->mAttribs['rc_cur_id'] ) {
 774                                 $curId = $rcObj->mAttribs['rc_cur_id'];
 775                         }
 776                         if( !$currentRevision && $rcObj->mAttribs['rc_this_oldid'] ) {
 777                                 $currentRevision = $rcObj->mAttribs['rc_this_oldid'];
 778                         }
 779
 780                         $bot = $rcObj->mAttribs['rc_bot'];
 781                         $userlinks[$u]++;
 782                 }
 783
 784                 # Sort the list and convert to text
 785                 krsort( $userlinks );
 786                 asort( $userlinks );
 787                 $users = array();
 788                 foreach( $userlinks as $userlink => $count) {
 789                         $text = $userlink;
 790                         $text .= $wgContLang->getDirMark();
 791                         if( $count > 1 ) {
 792                                 $text .= ' (' . $wgLang->formatNum( $count ) . '×)';
 793                         }
 794                         array_push( $users, $text );
 795                 }
 796
 797                 $users = ' <span class="changedby">[' .
 798                         implode( $this->message['semicolon-separator'], $users ) . ']</span>';
 799
 800                 # ID for JS visibility toggle
 801                 $jsid = $this->rcCacheIndex;
 802                 # onclick handler to toggle hidden/expanded
 803                 $toggleLink = "onclick='toggleVisibility($jsid); return false'";
 804                 # Title for <a> tags
 805                 $expandTitle = htmlspecialchars( wfMsg( 'rc-enhanced-expand' ) );
 806                 $closeTitle = htmlspecialchars( wfMsg( 'rc-enhanced-hide' ) );
 807
 808                 $tl = "<span id='mw-rc-openarrow-$jsid' class='mw-changeslist-expanded' style='visibility:hidden'><a href='#' $toggleLink title='$expandTitle'>" . $this->sideArrow() . "</a></span>";
 809                 $tl .= "<span id='mw-rc-closearrow-$jsid' class='mw-changeslist-hidden' style='display:none'><a href='#' $toggleLink title='$closeTitle'>" . $this->downArrow() . "</a></span>";
 810                 $r .= '<td valign="top" style="white-space: nowrap"><tt>'.$tl.'&nbsp;';
 811
 812                 # Main line
 813                 $r .= $this->recentChangesFlags( $isnew, false, $unpatrolled, '&nbsp;', $bot );
 814
 815                 # Timestamp
 816                 $r .= '&nbsp;'.$block[0]->timestamp.'&nbsp;</tt></td><td>';
 817
 818                 # Article link
 819                 if( $namehidden ) {
 820                         $r .= ' <span class="history-deleted">' . wfMsgHtml( 'rev-deleted-event' ) . '</span>';
 821                 } else if( $allLogs ) {
 822                         $r .= $this->maybeWatchedLink( $block[0]->link, $block[0]->watched );
 823                 } else {
 824                         $this->insertArticleLink( $r, $block[0], $block[0]->unpatrolled, $block[0]->watched );
 825                 }
 826
 827                 $r .= $wgContLang->getDirMark();
 828
 829                 $queryParams['curid'] = $curId;
 830                 # Changes message
 831                 $n = count($block);
 832                 static $nchanges = array();
 833                 if ( !isset( $nchanges[$n] ) ) {
 834                         $nchanges[$n] = wfMsgExt( 'nchanges', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) );
 835                 }
 836                 # Total change link
 837                 $r .= ' ';
 838                 if( !$allLogs ) {
 839                         $r .= '(';
 840                         if( !ChangesList::userCan( $rcObj, Revision::DELETED_TEXT ) ) {
 841                                 $r .= $nchanges[$n];
 842                         } else if( $isnew ) {
 843                                 $r .= $nchanges[$n];
 844                         } else {
 845                                 $params = $queryParams;
 846                                 $params['diff'] = $currentRevision;
 847                                 $params['oldid'] = $oldid;
 848
 849                                 $r .= $this->skin->link(
 850                                         $block[0]->getTitle(),
 851                                         $nchanges[$n],
 852                                         array(),
 853                                         $params,
 854                                         array( 'known', 'noclasses' )
 855                                 );
 856                         }
 857                 }
 858
 859                 # History
 860                 if( $allLogs ) {
 861                         // don't show history link for logs
 862                 } else if( $namehidden || !$block[0]->getTitle()->exists() ) {
 863                         $r .= $this->message['pipe-separator'] . $this->message['hist'] . ')';
 864                 } else {
 865                         $params = $queryParams;
 866                         $params['action'] = 'history';
 867
 868                         $r .= $this->message['pipe-separator'] .
 869                                 $this->skin->link(
 870                                         $block[0]->getTitle(),
 871                                         $this->message['hist'],
 872                                         array(),
 873                                         $params,
 874                                         array( 'known', 'noclasses' )
 875                                 ) . ')';
 876                 }
 877                 $r .= ' . . ';
 878
 879                 # Character difference (does not apply if only log items)
 880                 if( $wgRCShowChangedSize && !$allLogs ) {
 881                         $last = 0;
 882                         $first = count($block) - 1;
 883                         # Some events (like logs) have an "empty" size, so we need to skip those...
 884                         while( $last < $first && $block[$last]->mAttribs['rc_new_len'] === NULL ) {
 885                                 $last++;
 886                         }
 887                         while( $first > $last && $block[$first]->mAttribs['rc_old_len'] === NULL ) {
 888                                 $first--;
 889                         }
 890                         # Get net change
 891                         $chardiff = $rcObj->getCharacterDifference( $block[$first]->mAttribs['rc_old_len'],
 892                                 $block[$last]->mAttribs['rc_new_len'] );
 893
 894                         if( $chardiff == '' ) {
 895                                 $r .= ' ';
 896                         } else {
 897                                 $r .= ' ' . $chardiff. ' . . ';
 898                         }
 899                 }
 900
 901                 $r .= $users;
 902                 $r .= $this->numberofWatchingusers($block[0]->numberofWatchingusers);
 903
 904                 $r .= "</td></tr></table>\n";
 905
 906                 # Sub-entries
 907                 $r .= '<div id="mw-rc-subentries-'.$jsid.'" class="mw-changeslist-hidden">';
 908                 $r .= '<table cellpadding="0" cellspacing="0"  border="0" style="background: none">';
 909                 foreach( $block as $rcObj ) {
 910                         # Extract fields from DB into the function scope (rc_xxxx variables)
 911                         // FIXME: Would be good to replace this extract() call with something
 912                         // that explicitly initializes variables.
 913                         # Classes to apply -- TODO implement
 914                         $classes = array();
 915                         extract( $rcObj->mAttribs );
 916
 917                         #$r .= '<tr><td valign="top">'.$this->spacerArrow();
 918                         $r .= '<tr><td valign="top">';
 919                         $r .= '<tt>'.$this->spacerIndent() . $this->spacerIndent();
 920                         $r .= $this->recentChangesFlags( $rc_new, $rc_minor, $rcObj->unpatrolled, '&nbsp;', $rc_bot );
 921                         $r .= '&nbsp;</tt></td><td valign="top">';
 922
 923                         $params = $queryParams;
 924
 925                         if( $rc_this_oldid != 0 ) {
 926                                 $params['oldid'] = $rc_this_oldid;
 927                         }
 928
 929                         # Log timestamp
 930                         if( $rc_type == RC_LOG ) {
 931                                 $link = '<tt>'.$rcObj->timestamp.'</tt> ';
 932                         # Revision link
 933                         } else if( !ChangesList::userCan($rcObj,Revision::DELETED_TEXT) ) {
 934                                 $link = '<span class="history-deleted"><tt>'.$rcObj->timestamp.'</tt></span> ';
 935                         } else {
 936                                 if ( $rcObj->unpatrolled && $rc_type == RC_NEW) {
 937                                         $params['rcid'] = $rcObj->mAttribs['rc_id'];
 938                                 }
 939
 940                                 $link = '<tt>' .
 941                                         $this->skin->link(
 942                                                 $rcObj->getTitle(),
 943                                                 $rcObj->timestamp,
 944                                                 array(),
 945                                                 $params,
 946                                                 array( 'known', 'noclasses' )
 947                                         ) . '</tt>';
 948                                 if( $this->isDeleted($rcObj,Revision::DELETED_TEXT) )
 949                                         $link = '<span class="history-deleted">'.$link.'</span> ';
 950                         }
 951                         $r .= $link;
 952
 953                         if ( !$rc_type == RC_LOG || $rc_type == RC_NEW ) {
 954                                 $r .= ' (';
 955                                 $r .= $rcObj->curlink;
 956                                 $r .= $this->message['pipe-separator'];
 957                                 $r .= $rcObj->lastlink;
 958                                 $r .= ')';
 959                         }
 960                         $r .= ' . . ';
 961
 962                         # Character diff
 963                         if( $wgRCShowChangedSize ) {
 964                                 $r .= ( $rcObj->getCharacterDifference() == '' ? '' : $rcObj->getCharacterDifference() . ' . . ' ) ;
 965                         }
 966                         # User links
 967                         $r .= $rcObj->userlink;
 968                         $r .= $rcObj->usertalklink;
 969                         // log action
 970                         $this->insertAction( $r, $rcObj );
 971                         // log comment
 972                         $this->insertComment( $r, $rcObj );
 973                         # Rollback
 974                         $this->insertRollback( $r, $rcObj );
 975                         # Tags
 976                         $this->insertTags( $r, $rcObj, $classes );
 977
 978                         $r .= "</td></tr>\n";
 979                 }
 980                 $r .= "</table></div>\n";
 981
 982                 $this->rcCacheIndex++;
 983
 984                 wfProfileOut( __METHOD__ );
 985
 986                 return $r;
 987         }
 988
 989         /**
 990          * Generate HTML for an arrow or placeholder graphic
 991          * @param string $dir one of '', 'd', 'l', 'r'
 992          * @param string $alt text
 993          * @param string $title text
 994          * @return string HTML <img> tag
 995          */
 996         protected function arrow( $dir, $alt='', $title='' ) {
 997                 global $wgStylePath;
 998                 $encUrl = htmlspecialchars( $wgStylePath . '/common/images/Arr_' . $dir . '.png' );
 999                 $encAlt = htmlspecialchars( $alt );
1000                 $encTitle = htmlspecialchars( $title );
1001                 return "<img src=\"$encUrl\" width=\"12\" height=\"12\" alt=\"$encAlt\" title=\"$encTitle\" />";
1002         }
1003
1004         /**
1005          * Generate HTML for a right- or left-facing arrow,
1006          * depending on language direction.
1007          * @return string HTML <img> tag
1008          */
1009         protected function sideArrow() {
1010                 global $wgContLang;
1011                 $dir = $wgContLang->isRTL() ? 'l' : 'r';
1012                 return $this->arrow( $dir, '+', wfMsg( 'rc-enhanced-expand' ) );
1013         }
1014
1015         /**
1016          * Generate HTML for a down-facing arrow
1017          * depending on language direction.
1018          * @return string HTML <img> tag
1019          */
1020         protected function downArrow() {
1021                 return $this->arrow( 'd', '-', wfMsg( 'rc-enhanced-hide' ) );
1022         }
1023
1024         /**
1025          * Generate HTML for a spacer image
1026          * @return string HTML <img> tag
1027          */
1028         protected function spacerArrow() {
1029                 return $this->arrow( '', codepointToUtf8( 0xa0 ) ); // non-breaking space
1030         }
1031
1032         /**
1033          * Add a set of spaces
1034          * @return string HTML <td> tag
1035          */
1036         protected function spacerIndent() {
1037                 return '&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;';
1038         }
1039
1040         /**
1041          * Enhanced RC ungrouped line.
1042          * @return string a HTML formated line (generated using $r)
1043          */
1044         protected function recentChangesBlockLine( $rcObj ) {
1045                 global $wgRCShowChangedSize;
1046
1047                 wfProfileIn( __METHOD__ );
1048
1049                 # Extract fields from DB into the function scope (rc_xxxx variables)
1050                 // FIXME: Would be good to replace this extract() call with something
1051                 // that explicitly initializes variables.
1052                 $classes = array(); // TODO implement
1053                 extract( $rcObj->mAttribs );
1054                 $query['curid'] = $rc_cur_id;
1055
1056                 $r = '<table cellspacing="0" cellpadding="0" border="0" style="background: none"><tr>';
1057                 $r .= '<td valign="top" style="white-space: nowrap"><tt>' . $this->spacerArrow() . '&nbsp;';
1058                 # Flag and Timestamp
1059                 if( $rc_type == RC_MOVE || $rc_type == RC_MOVE_OVER_REDIRECT ) {
1060                         $r .= '&nbsp;&nbsp;&nbsp;&nbsp;'; // 4 flags -> 4 spaces
1061                 } else {
1062                         $r .= $this->recentChangesFlags( $rc_type == RC_NEW, $rc_minor, $rcObj->unpatrolled, '&nbsp;', $rc_bot );
1063                 }
1064                 $r .= '&nbsp;'.$rcObj->timestamp.'&nbsp;</tt></td><td>';
1065                 # Article or log link
1066                 if( $rc_log_type ) {
1067                         $logtitle = Title::newFromText( "Log/$rc_log_type", NS_SPECIAL );
1068                         $logname = LogPage::logName( $rc_log_type );
1069                         $r .= '(' . $this->skin->link(
1070                                 $logtitle,
1071                                 $logname,
1072                                 array(),
1073                                 array(),
1074                                 array( 'known', 'noclasses' )
1075                         ) . ')';
1076                 } else {
1077                         $this->insertArticleLink( $r, $rcObj, $rcObj->unpatrolled, $rcObj->watched );
1078                 }
1079                 # Diff and hist links
1080                 if ( $rc_type != RC_LOG ) {
1081                         $r .= ' ('. $rcObj->difflink . $this->message['pipe-separator'];
1082                         $query['action'] = 'history';
1083                         $r .= $this->skin->link(
1084                                 $rcObj->getTitle(),
1085                                 $this->message['hist'],
1086                                 array(),
1087                                 $query,
1088                                 array( 'known', 'noclasses' )
1089                         ) . ')';
1090                 }
1091                 $r .= ' . . ';
1092                 # Character diff
1093                 if( $wgRCShowChangedSize && ($cd = $rcObj->getCharacterDifference()) ) {
1094                         $r .= "$cd . . ";
1095                 }
1096                 # User/talk
1097                 $r .= ' '.$rcObj->userlink . $rcObj->usertalklink;
1098                 # Log action (if any)
1099                 if( $rc_log_type ) {
1100                         if( $this->isDeleted($rcObj,LogPage::DELETED_ACTION) ) {
1101                                 $r .= ' <span class="history-deleted">' . wfMsgHtml('rev-deleted-event') . '</span>';
1102                         } else {
1103                                 $r .= ' ' . LogPage::actionText( $rc_log_type, $rc_log_action, $rcObj->getTitle(),
1104                                         $this->skin, LogPage::extractParams($rc_params), true, true );
1105                         }
1106                 }
1107                 $this->insertComment( $r, $rcObj );
1108                 $this->insertRollback( $r, $rcObj );
1109                 # Tags
1110                 $this->insertTags( $r, $rcObj, $classes );
1111                 # Show how many people are watching this if enabled
1112                 $r .= $this->numberofWatchingusers($rcObj->numberofWatchingusers);
1113
1114                 $r .= "</td></tr></table>\n";
1115
1116                 wfProfileOut( __METHOD__ );
1117
1118                 return $r;
1119         }
1120
1121         /**
1122          * If enhanced RC is in use, this function takes the previously cached
1123          * RC lines, arranges them, and outputs the HTML
1124          */
1125         protected function recentChangesBlock() {
1126                 if( count ( $this->rc_cache ) == 0 ) {
1127                         return '';
1128                 }
1129
1130                 wfProfileIn( __METHOD__ );
1131
1132                 $blockOut = '';
1133                 foreach( $this->rc_cache as $block ) {
1134                         if( count( $block ) < 2 ) {
1135                                 $blockOut .= $this->recentChangesBlockLine( array_shift( $block ) );
1136                         } else {
1137                                 $blockOut .= $this->recentChangesBlockGroup( $block );
1138                         }
1139                 }
1140
1141                 wfProfileOut( __METHOD__ );
1142
1143                 return '<div>'.$blockOut.'</div>';
1144         }
1145
1146         /**
1147          * Returns text for the end of RC
1148          * If enhanced RC is in use, returns pretty much all the text
1149          */
1150         public function endRecentChangesList() {
1151                 return $this->recentChangesBlock() . parent::endRecentChangesList();
1152         }
1153
1154 }