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                 global $wgRequest;
  48
  49                 $sk = $user->getSkin();
  50                 $list = null;
  51                 if( wfRunHooks( 'FetchChangesList', array( &$user, &$sk, &$list ) ) ) {
  52                         $new = $wgRequest->getBool( 'enhanced', $user->getOption( 'usenewrc' ) );
  53                         return $new ? new EnhancedChangesList( $sk ) : new OldChangesList( $sk );
  54                 } else {
  55                         return $list;
  56                 }
  57         }
  58
  59         /**
  60          * Sets the list to use a <li class="watchlist-(namespace)-(page)"> tag
  61          * @param $value Boolean
  62          */
  63         public function setWatchlistDivs( $value = true ) {
  64                 $this->watchlist = $value;
  65         }
  66
  67         /**
  68          * As we use the same small set of messages in various methods and that
  69          * they are called often, we call them once and save them in $this->message
  70          */
  71         private function preCacheMessages() {
  72                 if( !isset( $this->message ) ) {
  73                         foreach ( explode( ' ', 'cur diff hist last blocklink history ' .
  74                         'semicolon-separator pipe-separator' ) as $msg ) {
  75                                 $this->message[$msg] = wfMsgExt( $msg, array( 'escapenoentities' ) );
  76                         }
  77                 }
  78         }
  79
  80
  81         /**
  82          * Returns the appropriate flags for new page, minor change and patrolling
  83          * @param $new Boolean
  84          * @param $minor Boolean
  85          * @param $patrolled Boolean
  86          * @param $nothing String to use for empty space
  87          * @param $bot Boolean
  88          * @return String
  89          */
  90         protected function recentChangesFlags( $new, $minor, $patrolled, $nothing = '&#160;', $bot = false ) {
  91                 $f = $new ? self::flag( 'newpage' ) : $nothing;
  92                 $f .= $minor ? self::flag( 'minor' ) : $nothing;
  93                 $f .= $bot ? self::flag( 'bot' ) : $nothing;
  94                 $f .= $patrolled ? self::flag( 'unpatrolled' ) : $nothing;
  95                 return $f;
  96         }
  97
  98         /**
  99          * Provide the <abbr> element appropriate to a given abbreviated flag,
 100          * namely the flag indicating a new page, a minor edit, a bot edit, or an
 101          * unpatrolled edit.  By default in English it will contain "N", "m", "b",
 102          * "!" respectively, plus it will have an appropriate title and class.
 103          *
 104          * @param $key String: 'newpage', 'unpatrolled', 'minor', or 'bot'
 105          * @return String: Raw HTML
 106          */
 107         public static function flag( $key ) {
 108                 static $messages = null;
 109                 if ( is_null( $messages ) ) {
 110                         foreach ( explode( ' ', 'minoreditletter boteditletter newpageletter ' .
 111                         'unpatrolledletter recentchanges-label-minor recentchanges-label-bot ' .
 112                         'recentchanges-label-newpage recentchanges-label-unpatrolled' ) as $msg ) {
 113                                 $messages[$msg] = wfMsgExt( $msg, 'escapenoentities' );
 114                         }
 115                 }
 116                 # Inconsistent naming, bleh
 117                 if ( $key == 'newpage' || $key == 'unpatrolled' ) {
 118                         $key2 = $key;
 119                 } else {
 120                         $key2 = $key . 'edit';
 121                 }
 122                 return "<abbr class=\"$key\" title=\""
 123                         . $messages["recentchanges-label-$key"] . "\">"
 124                         . $messages["${key2}letter"]
 125                         . '</abbr>';
 126         }
 127
 128         /**
 129          * Some explanatory wrapper text for the given flag, to be used in a legend
 130          * explaining what the flags mean.  For instance, "N - new page".  See
 131          * also flag().
 132          *
 133          * @param $key String: 'newpage', 'unpatrolled', 'minor', or 'bot'
 134          * @return String: Raw HTML
 135          */
 136         private static function flagLine( $key ) {
 137                 return wfMsgExt( "recentchanges-legend-$key", array( 'escapenoentities',
 138                         'replaceafter' ), self::flag( $key ) );
 139         }
 140
 141         /**
 142          * A handy legend to tell users what the little "m", "b", and so on mean.
 143          *
 144          * @return String: Raw HTML
 145          */
 146         public static function flagLegend() {
 147                 global $wgGroupPermissions, $wgLang;
 148
 149                 $flags = array( self::flagLine( 'newpage' ),
 150                         self::flagLine( 'minor' ) );
 151
 152                 # Don't show info on bot edits unless there's a bot group of some kind
 153                 foreach ( $wgGroupPermissions as $rights ) {
 154                         if ( isset( $rights['bot'] ) && $rights['bot'] ) {
 155                                 $flags[] = self::flagLine( 'bot' );
 156                                 break;
 157                         }
 158                 }
 159
 160                 if ( self::usePatrol() ) {
 161                         $flags[] = self::flagLine( 'unpatrolled' );
 162                 }
 163
 164                 return '<div class="mw-rc-label-legend">' .
 165                         wfMsgExt( 'recentchanges-label-legend', 'parseinline',
 166                         $wgLang->commaList( $flags ) ) . '</div>';
 167         }
 168
 169         /**
 170          * Returns text for the start of the tabular part of RC
 171          * @return String
 172          */
 173         public function beginRecentChangesList() {
 174                 $this->rc_cache = array();
 175                 $this->rcMoveIndex = 0;
 176                 $this->rcCacheIndex = 0;
 177                 $this->lastdate = '';
 178                 $this->rclistOpen = false;
 179                 return '';
 180         }
 181
 182         /**
 183          * Show formatted char difference
 184          * @param $old Integer: bytes
 185          * @param $new Integer: bytes
 186          * @returns String
 187          */
 188         public static function showCharacterDifference( $old, $new ) {
 189                 global $wgRCChangedSizeThreshold, $wgLang, $wgMiserMode;
 190                 $szdiff = $new - $old;
 191
 192                 $code = $wgLang->getCode();
 193                 static $fastCharDiff = array();
 194                 if ( !isset($fastCharDiff[$code]) ) {
 195                         $fastCharDiff[$code] = $wgMiserMode || wfMsgNoTrans( 'rc-change-size' ) === '$1';
 196                 }
 197
 198                 $formatedSize = $wgLang->formatNum($szdiff);
 199
 200                 if ( !$fastCharDiff[$code] ) {
 201                         $formatedSize = wfMsgExt( 'rc-change-size', array( 'parsemag', 'escape' ), $formatedSize );
 202                 }
 203
 204                 if( abs( $szdiff ) > abs( $wgRCChangedSizeThreshold ) ) {
 205                         $tag = 'strong';
 206                 } else {
 207                     $tag = 'span';
 208                 }
 209                 if( $szdiff === 0 ) {
 210                         return "<$tag class='mw-plusminus-null'>($formatedSize)</$tag>";
 211                 } elseif( $szdiff > 0 ) {
 212                         return "<$tag class='mw-plusminus-pos'>(+$formatedSize)</$tag>";
 213             } else {
 214                         return "<$tag class='mw-plusminus-neg'>($formatedSize)</$tag>";
 215                 }
 216         }
 217
 218         /**
 219          * Returns text for the end of RC
 220          * @return String
 221          */
 222         public function endRecentChangesList() {
 223                 if( $this->rclistOpen ) {
 224                         return "</ul>\n";
 225                 } else {
 226                         return '';
 227                 }
 228         }
 229
 230         public function insertMove( &$s, $rc ) {
 231                 # Diff
 232                 $s .= '(' . $this->message['diff'] . ') (';
 233                 # Hist
 234                 $s .= $this->skin->link(
 235                         $rc->getMovedToTitle(),
 236                         $this->message['hist'],
 237                         array(),
 238                         array( 'action' => 'history' ),
 239                         array( 'known', 'noclasses' )
 240                 ) . ') . . ';
 241                 # "[[x]] moved to [[y]]"
 242                 $msg = ( $rc->mAttribs['rc_type'] == RC_MOVE ) ? '1movedto2' : '1movedto2_redir';
 243                 $s .= wfMsg(
 244                         $msg,
 245                         $this->skin->link(
 246                                 $rc->getTitle(),
 247                                 null,
 248                                 array(),
 249                                 array( 'redirect' => 'no' ),
 250                                 array( 'known', 'noclasses' )
 251                         ),
 252                         $this->skin->link(
 253                                 $rc->getMovedToTitle(),
 254                                 null,
 255                                 array(),
 256                                 array(),
 257                                 array( 'known', 'noclasses' )
 258                         )
 259                 );
 260         }
 261
 262         public function insertDateHeader( &$s, $rc_timestamp ) {
 263                 global $wgLang;
 264                 # Make date header if necessary
 265                 $date = $wgLang->date( $rc_timestamp, true, true );
 266                 if( $date != $this->lastdate ) {
 267                         if( $this->lastdate != '' ) {
 268                                 $s .= "</ul>\n";
 269                         }
 270                         $s .= Xml::element( 'h4', null, $date ) . "\n<ul class=\"special\">";
 271                         $this->lastdate = $date;
 272                         $this->rclistOpen = true;
 273                 }
 274         }
 275
 276         public function insertLog( &$s, $title, $logtype ) {
 277                 $logname = LogPage::logName( $logtype );
 278                 $s .= '(' . $this->skin->link(
 279                         $title,
 280                         $logname,
 281                         array(),
 282                         array(),
 283                         array( 'known', 'noclasses' )
 284                 ) . ')';
 285         }
 286
 287         public function insertDiffHist( &$s, &$rc, $unpatrolled ) {
 288                 # Diff link
 289                 if( $rc->mAttribs['rc_type'] == RC_NEW || $rc->mAttribs['rc_type'] == RC_LOG ) {
 290                         $diffLink = $this->message['diff'];
 291                 } else if( !self::userCan($rc,Revision::DELETED_TEXT) ) {
 292                         $diffLink = $this->message['diff'];
 293                 } else {
 294                         $query = array(
 295                                 'curid' => $rc->mAttribs['rc_cur_id'],
 296                                 'diff'  => $rc->mAttribs['rc_this_oldid'],
 297                                 'oldid' => $rc->mAttribs['rc_last_oldid']
 298                         );
 299
 300                         if( $unpatrolled ) {
 301                                 $query['rcid'] = $rc->mAttribs['rc_id'];
 302                         };
 303
 304                         $diffLink = $this->skin->link(
 305                                 $rc->getTitle(),
 306                                 $this->message['diff'],
 307                                 array( 'tabindex' => $rc->counter ),
 308                                 $query,
 309                                 array( 'known', 'noclasses' )
 310                         );
 311                 }
 312                 $s .= '(' . $diffLink . $this->message['pipe-separator'];
 313                 # History link
 314                 $s .= $this->skin->link(
 315                         $rc->getTitle(),
 316                         $this->message['hist'],
 317                         array(),
 318                         array(
 319                                 'curid' => $rc->mAttribs['rc_cur_id'],
 320                                 'action' => 'history'
 321                         ),
 322                         array( 'known', 'noclasses' )
 323                 );
 324                 $s .= ') . . ';
 325         }
 326
 327         public function insertArticleLink( &$s, &$rc, $unpatrolled, $watched ) {
 328                 global $wgContLang;
 329                 # If it's a new article, there is no diff link, but if it hasn't been
 330                 # patrolled yet, we need to give users a way to do so
 331                 $params = array();
 332
 333                 if ( $unpatrolled && $rc->mAttribs['rc_type'] == RC_NEW ) {
 334                         $params['rcid'] = $rc->mAttribs['rc_id'];
 335                 }
 336
 337                 if( $this->isDeleted($rc,Revision::DELETED_TEXT) ) {
 338                         $articlelink = $this->skin->link(
 339                                 $rc->getTitle(),
 340                                 null,
 341                                 array(),
 342                                 $params,
 343                                 array( 'known', 'noclasses' )
 344                         );
 345                         $articlelink = '<span class="history-deleted">' . $articlelink . '</span>';
 346                 } else {
 347                         $articlelink = ' '. $this->skin->link(
 348                                 $rc->getTitle(),
 349                                 null,
 350                                 array(),
 351                                 $params,
 352                                 array( 'known', 'noclasses' )
 353                         );
 354                 }
 355                 # Bolden pages watched by this user
 356                 if( $watched ) {
 357                         $articlelink = "<strong class=\"mw-watched\">{$articlelink}</strong>";
 358                 }
 359                 # RTL/LTR marker
 360                 $articlelink .= $wgContLang->getDirMark();
 361
 362                 wfRunHooks( 'ChangesListInsertArticleLink',
 363                         array(&$this, &$articlelink, &$s, &$rc, $unpatrolled, $watched) );
 364
 365                 $s .= " $articlelink";
 366         }
 367
 368         public function insertTimestamp( &$s, $rc ) {
 369                 global $wgLang;
 370                 $s .= $this->message['semicolon-separator'] .
 371                         $wgLang->time( $rc->mAttribs['rc_timestamp'], true, true ) . ' . . ';
 372         }
 373
 374         /** Insert links to user page, user talk page and eventually a blocking link */
 375         public function insertUserRelatedLinks( &$s, &$rc ) {
 376                 if( $this->isDeleted( $rc, Revision::DELETED_USER ) ) {
 377                    $s .= ' <span class="history-deleted">' . wfMsgHtml( 'rev-deleted-user' ) . '</span>';
 378                 } else {
 379                   $s .= $this->skin->userLink( $rc->mAttribs['rc_user'], $rc->mAttribs['rc_user_text'] );
 380                   $s .= $this->skin->userToolLinks( $rc->mAttribs['rc_user'], $rc->mAttribs['rc_user_text'] );
 381                 }
 382         }
 383
 384         /** insert a formatted action */
 385         public function insertAction( &$s, &$rc ) {
 386                 if( $rc->mAttribs['rc_type'] == RC_LOG ) {
 387                         if( $this->isDeleted( $rc, LogPage::DELETED_ACTION ) ) {
 388                                 $s .= ' <span class="history-deleted">' . wfMsgHtml( 'rev-deleted-event' ) . '</span>';
 389                         } else {
 390                                 $s .= ' '.LogPage::actionText( $rc->mAttribs['rc_log_type'], $rc->mAttribs['rc_log_action'],
 391                                         $rc->getTitle(), $this->skin, LogPage::extractParams( $rc->mAttribs['rc_params'] ), true, true );
 392                         }
 393                 }
 394         }
 395
 396         /** insert a formatted comment */
 397         public function insertComment( &$s, &$rc ) {
 398                 if( $rc->mAttribs['rc_type'] != RC_MOVE && $rc->mAttribs['rc_type'] != RC_MOVE_OVER_REDIRECT ) {
 399                         if( $this->isDeleted( $rc, Revision::DELETED_COMMENT ) ) {
 400                                 $s .= ' <span class="history-deleted">' . wfMsgHtml( 'rev-deleted-comment' ) . '</span>';
 401                         } else {
 402                                 $s .= $this->skin->commentBlock( $rc->mAttribs['rc_comment'], $rc->getTitle() );
 403                         }
 404                 }
 405         }
 406
 407         /**
 408          * Check whether to enable recent changes patrol features
 409          * @return Boolean
 410          */
 411         public static function usePatrol() {
 412                 global $wgUser;
 413                 return $wgUser->useRCPatrol();
 414         }
 415
 416         /**
 417          * Returns the string which indicates the number of watching users
 418          */
 419         protected function numberofWatchingusers( $count ) {
 420                 global $wgLang;
 421                 static $cache = array();
 422                 if( $count > 0 ) {
 423                         if( !isset( $cache[$count] ) ) {
 424                                 $cache[$count] = wfMsgExt( 'number_of_watching_users_RCview',
 425                                         array('parsemag', 'escape' ), $wgLang->formatNum( $count ) );
 426                         }
 427                         return $cache[$count];
 428                 } else {
 429                         return '';
 430                 }
 431         }
 432
 433         /**
 434          * Determine if said field of a revision is hidden
 435          * @param $rc RCCacheEntry
 436          * @param $field Integer: one of DELETED_* bitfield constants
 437          * @return Boolean
 438          */
 439         public static function isDeleted( $rc, $field ) {
 440                 return ( $rc->mAttribs['rc_deleted'] & $field ) == $field;
 441         }
 442
 443         /**
 444          * Determine if the current user is allowed to view a particular
 445          * field of this revision, if it's marked as deleted.
 446          * @param $rc RCCacheEntry
 447          * @param $field Integer
 448          * @return Boolean
 449          */
 450         public static function userCan( $rc, $field ) {
 451                 if( $rc->mAttribs['rc_type'] == RC_LOG ) {
 452                         return LogEventsList::userCanBitfield( $rc->mAttribs['rc_deleted'], $field );
 453                 } else {
 454                         return Revision::userCanBitfield( $rc->mAttribs['rc_deleted'], $field );
 455                 }
 456         }
 457
 458         protected function maybeWatchedLink( $link, $watched = false ) {
 459                 if( $watched ) {
 460                         return '<strong class="mw-watched">' . $link . '</strong>';
 461                 } else {
 462                         return '<span class="mw-rc-unwatched">' . $link . '</span>';
 463                 }
 464         }
 465
 466         /** Inserts a rollback link */
 467         public function insertRollback( &$s, &$rc ) {
 468                 global $wgUser;
 469                 if( !$rc->mAttribs['rc_new'] && $rc->mAttribs['rc_this_oldid'] && $rc->mAttribs['rc_cur_id'] ) {
 470                         $page = $rc->getTitle();
 471                         /** Check for rollback and edit permissions, disallow special pages, and only
 472                           * show a link on the top-most revision */
 473                         if ($wgUser->isAllowed('rollback') && $rc->mAttribs['page_latest'] == $rc->mAttribs['rc_this_oldid'] )
 474                         {
 475                                 $rev = new Revision( array(
 476                                         'id'        => $rc->mAttribs['rc_this_oldid'],
 477                                         'user'      => $rc->mAttribs['rc_user'],
 478                                         'user_text' => $rc->mAttribs['rc_user_text'],
 479                                         'deleted'   => $rc->mAttribs['rc_deleted']
 480                                 ) );
 481                                 $rev->setTitle( $page );
 482                                 $s .= ' '.$this->skin->generateRollback( $rev );
 483                         }
 484                 }
 485         }
 486
 487         public function insertTags( &$s, &$rc, &$classes ) {
 488                 if ( empty($rc->mAttribs['ts_tags']) )
 489                         return;
 490
 491                 list($tagSummary, $newClasses) = ChangeTags::formatSummaryRow( $rc->mAttribs['ts_tags'], 'changeslist' );
 492                 $classes = array_merge( $classes, $newClasses );
 493                 $s .= ' ' . $tagSummary;
 494         }
 495
 496         public function insertExtra( &$s, &$rc, &$classes ) {
 497                 ## Empty, used for subclassers to add anything special.
 498         }
 499 }
 500
 501
 502 /**
 503  * Generate a list of changes using the good old system (no javascript)
 504  */
 505 class OldChangesList extends ChangesList {
 506         /**
 507          * Format a line using the old system (aka without any javascript).
 508          */
 509         public function recentChangesLine( &$rc, $watched = false, $linenumber = null ) {
 510                 global $wgLang, $wgRCShowChangedSize, $wgUser;
 511                 wfProfileIn( __METHOD__ );
 512                 # Should patrol-related stuff be shown?
 513                 $unpatrolled = $wgUser->useRCPatrol() && !$rc->mAttribs['rc_patrolled'];
 514
 515                 $dateheader = ''; // $s now contains only <li>...</li>, for hooks' convenience.
 516                 $this->insertDateHeader( $dateheader, $rc->mAttribs['rc_timestamp'] );
 517
 518                 $s = '';
 519                 $classes = array();
 520                 // use mw-line-even/mw-line-odd class only if linenumber is given (feature from bug 14468)
 521                 if( $linenumber ) {
 522                         if( $linenumber & 1 ) {
 523                                 $classes[] = 'mw-line-odd';
 524                         }
 525                         else {
 526                                 $classes[] = 'mw-line-even';
 527                         }
 528                 }
 529
 530                 // Moved pages
 531                 if( $rc->mAttribs['rc_type'] == RC_MOVE || $rc->mAttribs['rc_type'] == RC_MOVE_OVER_REDIRECT ) {
 532                         $this->insertMove( $s, $rc );
 533                 // Log entries
 534                 } elseif( $rc->mAttribs['rc_log_type'] ) {
 535                         $logtitle = Title::newFromText( 'Log/'.$rc->mAttribs['rc_log_type'], NS_SPECIAL );
 536                         $this->insertLog( $s, $logtitle, $rc->mAttribs['rc_log_type'] );
 537                 // Log entries (old format) or log targets, and special pages
 538                 } elseif( $rc->mAttribs['rc_namespace'] == NS_SPECIAL ) {
 539                         list( $name, $subpage ) = SpecialPage::resolveAliasWithSubpage( $rc->mAttribs['rc_title'] );
 540                         if( $name == 'Log' ) {
 541                                 $this->insertLog( $s, $rc->getTitle(), $subpage );
 542                         }
 543                 // Regular entries
 544                 } else {
 545                         $this->insertDiffHist( $s, $rc, $unpatrolled );
 546                         # M, N, b and ! (minor, new, bot and unpatrolled)
 547                         $s .= $this->recentChangesFlags( $rc->mAttribs['rc_new'], $rc->mAttribs['rc_minor'],
 548                                 $unpatrolled, '', $rc->mAttribs['rc_bot'] );
 549                         $this->insertArticleLink( $s, $rc, $unpatrolled, $watched );
 550                 }
 551                 # Edit/log timestamp
 552                 $this->insertTimestamp( $s, $rc );
 553                 # Bytes added or removed
 554                 if( $wgRCShowChangedSize ) {
 555                         $cd = $rc->getCharacterDifference();
 556                         if( $cd != '' ) {
 557                                 $s .= "$cd  . . ";
 558                         }
 559                 }
 560                 # User tool links
 561                 $this->insertUserRelatedLinks( $s, $rc );
 562                 # Log action text (if any)
 563                 $this->insertAction( $s, $rc );
 564                 # Edit or log comment
 565                 $this->insertComment( $s, $rc );
 566                 # Tags
 567                 $this->insertTags( $s, $rc, $classes );
 568                 # Rollback
 569                 $this->insertRollback( $s, $rc );
 570                 # For subclasses
 571                 $this->insertExtra( $s, $rc, $classes );
 572
 573                 # How many users watch this page
 574                 if( $rc->numberofWatchingusers > 0 ) {
 575                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_RCview',
 576                                 array( 'parsemag', 'escape' ), $wgLang->formatNum( $rc->numberofWatchingusers ) );
 577                 }
 578
 579                 if( $this->watchlist ) {
 580                         $classes[] = Sanitizer::escapeClass( 'watchlist-'.$rc->mAttribs['rc_namespace'].'-'.$rc->mAttribs['rc_title'] );
 581                 }
 582
 583                 wfRunHooks( 'OldChangesListRecentChangesLine', array(&$this, &$s, $rc) );
 584
 585                 wfProfileOut( __METHOD__ );
 586                 return "$dateheader<li class=\"".implode( ' ', $classes )."\">".$s."</li>\n";
 587         }
 588 }
 589
 590
 591 /**
 592  * Generate a list of changes using an Enhanced system (uses javascript).
 593  */
 594 class EnhancedChangesList extends ChangesList {
 595         /**
 596          * Add the JavaScript file for enhanced changeslist
 597          * @return String
 598          */
 599         public function beginRecentChangesList() {
 600                 global $wgStylePath, $wgStyleVersion;
 601                 $this->rc_cache = array();
 602                 $this->rcMoveIndex = 0;
 603                 $this->rcCacheIndex = 0;
 604                 $this->lastdate = '';
 605                 $this->rclistOpen = false;
 606                 $script = Html::linkedScript( $wgStylePath . "/common/enhancedchanges.js?$wgStyleVersion" );
 607                 return $script;
 608         }
 609         /**
 610          * Format a line for enhanced recentchange (aka with javascript and block of lines).
 611          */
 612         public function recentChangesLine( &$baseRC, $watched = false ) {
 613                 global $wgLang, $wgUser;
 614
 615                 wfProfileIn( __METHOD__ );
 616
 617                 # Create a specialised object
 618                 $rc = RCCacheEntry::newFromParent( $baseRC );
 619
 620                 # Extract fields from DB into the function scope (rc_xxxx variables)
 621                 // FIXME: Would be good to replace this extract() call with something
 622                 // that explicitly initializes variables.
 623                 extract( $rc->mAttribs );
 624                 $curIdEq = array( 'curid' => $rc_cur_id );
 625
 626                 # If it's a new day, add the headline and flush the cache
 627                 $date = $wgLang->date( $rc_timestamp, true );
 628                 $ret = '';
 629                 if( $date != $this->lastdate ) {
 630                         # Process current cache
 631                         $ret = $this->recentChangesBlock();
 632                         $this->rc_cache = array();
 633                         $ret .= Xml::element( 'h4', null, $date );
 634                         $this->lastdate = $date;
 635                 }
 636
 637                 # Should patrol-related stuff be shown?
 638                 if( $wgUser->useRCPatrol() ) {
 639                         $rc->unpatrolled = !$rc_patrolled;
 640                 } else {
 641                         $rc->unpatrolled = false;
 642                 }
 643
 644                 $showdifflinks = true;
 645                 # Make article link
 646                 // Page moves
 647                 if( $rc_type == RC_MOVE || $rc_type == RC_MOVE_OVER_REDIRECT ) {
 648                         $msg = ( $rc_type == RC_MOVE ) ? "1movedto2" : "1movedto2_redir";
 649                         $clink = wfMsg( $msg, $this->skin->linkKnown( $rc->getTitle(), null,
 650                                 array(), array( 'redirect' => 'no' ) ),
 651                                 $this->skin->linkKnown( $rc->getMovedToTitle() ) );
 652                 // New unpatrolled pages
 653                 } else if( $rc->unpatrolled && $rc_type == RC_NEW ) {
 654                         $clink = $this->skin->linkKnown( $rc->getTitle(), null, array(),
 655                                 array( 'rcid' => $rc_id ) );
 656                 // Log entries
 657                 } else if( $rc_type == RC_LOG ) {
 658                         if( $rc_log_type ) {
 659                                 $logtitle = SpecialPage::getTitleFor( 'Log', $rc_log_type );
 660                                 $clink = '(' . $this->skin->linkKnown( $logtitle,
 661                                         LogPage::logName($rc_log_type) ) . ')';
 662                         } else {
 663                                 $clink = $this->skin->link( $rc->getTitle() );
 664                         }
 665                         $watched = false;
 666                 // Log entries (old format) and special pages
 667                 } elseif( $rc_namespace == NS_SPECIAL ) {
 668                         list( $specialName, $logtype ) = SpecialPage::resolveAliasWithSubpage( $rc_title );
 669                         if ( $specialName == 'Log' ) {
 670                                 # Log updates, etc
 671                                 $logname = LogPage::logName( $logtype );
 672                                 $clink = '(' . $this->skin->linkKnown( $rc->getTitle(), $logname ) . ')';
 673                         } else {
 674                                 wfDebug( "Unexpected special page in recentchanges\n" );
 675                                 $clink = '';
 676                         }
 677                 // Edits
 678                 } else {
 679                         $clink = $this->skin->linkKnown( $rc->getTitle() );
 680                 }
 681
 682                 # Don't show unusable diff links
 683                 if ( !ChangesList::userCan($rc,Revision::DELETED_TEXT) ) {
 684                         $showdifflinks = false;
 685                 }
 686
 687                 $time = $wgLang->time( $rc_timestamp, true, true );
 688                 $rc->watched = $watched;
 689                 $rc->link = $clink;
 690                 $rc->timestamp = $time;
 691                 $rc->numberofWatchingusers = $baseRC->numberofWatchingusers;
 692
 693                 # Make "cur" and "diff" links.  Do not use link(), it is too slow if
 694                 # called too many times (50% of CPU time on RecentChanges!).
 695                 if( $rc->unpatrolled ) {
 696                         $rcIdQuery = array( 'rcid' => $rc_id );
 697                 } else {
 698                         $rcIdQuery = array();
 699                 }
 700                 $querycur = $curIdEq + array( 'diff' => '0', 'oldid' => $rc_this_oldid );
 701                 $querydiff = $curIdEq + array( 'diff' => $rc_this_oldid, 'oldid' =>
 702                         $rc_last_oldid ) + $rcIdQuery;
 703
 704                 if( !$showdifflinks ) {
 705                         $curLink = $this->message['cur'];
 706                         $diffLink = $this->message['diff'];
 707                 } else if( in_array( $rc_type, array(RC_NEW,RC_LOG,RC_MOVE,RC_MOVE_OVER_REDIRECT) ) ) {
 708                         if ( $rc_type != RC_NEW ) {
 709                                 $curLink = $this->message['cur'];
 710                         } else {
 711                                 $curUrl = htmlspecialchars( $rc->getTitle()->getLinkUrl( $querycur ) );
 712                                 $curLink = "<a href=\"$curUrl\" tabindex=\"{$baseRC->counter}\">{$this->message['cur']}</a>";
 713                         }
 714                         $diffLink = $this->message['diff'];
 715                 } else {
 716                         $diffUrl = htmlspecialchars( $rc->getTitle()->getLinkUrl( $querydiff ) );
 717                         $curUrl = htmlspecialchars( $rc->getTitle()->getLinkUrl( $querycur ) );
 718                         $diffLink = "<a href=\"$diffUrl\" tabindex=\"{$baseRC->counter}\">{$this->message['diff']}</a>";
 719                         $curLink = "<a href=\"$curUrl\" tabindex=\"{$baseRC->counter}\">{$this->message['cur']}</a>";
 720                 }
 721
 722                 # Make "last" link
 723                 if( !$showdifflinks || !$rc_last_oldid ) {
 724                         $lastLink = $this->message['last'];
 725                 } else if( $rc_type == RC_LOG || $rc_type == RC_MOVE || $rc_type == RC_MOVE_OVER_REDIRECT ) {
 726                         $lastLink = $this->message['last'];
 727                 } else {
 728                         $lastLink = $this->skin->linkKnown( $rc->getTitle(), $this->message['last'],
 729                                 array(), $curIdEq + array('diff' => $rc_this_oldid, 'oldid' => $rc_last_oldid) + $rcIdQuery );
 730                 }
 731
 732                 # Make user links
 733                 if( $this->isDeleted($rc,Revision::DELETED_USER) ) {
 734                         $rc->userlink = ' <span class="history-deleted">' . wfMsgHtml( 'rev-deleted-user' ) . '</span>';
 735                 } else {
 736                         $rc->userlink = $this->skin->userLink( $rc_user, $rc_user_text );
 737                         $rc->usertalklink = $this->skin->userToolLinks( $rc_user, $rc_user_text );
 738                 }
 739
 740                 $rc->lastlink = $lastLink;
 741                 $rc->curlink  = $curLink;
 742                 $rc->difflink = $diffLink;
 743
 744                 # Put accumulated information into the cache, for later display
 745                 # Page moves go on their own line
 746                 $title = $rc->getTitle();
 747                 $secureName = $title->getPrefixedDBkey();
 748                 if( $rc_type == RC_MOVE || $rc_type == RC_MOVE_OVER_REDIRECT ) {
 749                         # Use an @ character to prevent collision with page names
 750                         $this->rc_cache['@@' . ($this->rcMoveIndex++)] = array($rc);
 751                 } else {
 752                         # Logs are grouped by type
 753                         if( $rc_type == RC_LOG ){
 754                                 $secureName = SpecialPage::getTitleFor( 'Log', $rc_log_type )->getPrefixedDBkey();
 755                         }
 756                         if( !isset( $this->rc_cache[$secureName] ) ) {
 757                                 $this->rc_cache[$secureName] = array();
 758                         }
 759
 760                         array_push( $this->rc_cache[$secureName], $rc );
 761                 }
 762
 763                 wfProfileOut( __METHOD__ );
 764
 765                 return $ret;
 766         }
 767
 768         /**
 769          * Enhanced RC group
 770          */
 771         protected function recentChangesBlockGroup( $block ) {
 772                 global $wgLang, $wgContLang, $wgRCShowChangedSize;
 773
 774                 wfProfileIn( __METHOD__ );
 775
 776                 $r = '<table class="mw-enhanced-rc"><tr>';
 777
 778                 # Collate list of users
 779                 $userlinks = array();
 780                 # Other properties
 781                 $unpatrolled = false;
 782                 $isnew = false;
 783                 $curId = $currentRevision = 0;
 784                 # Some catalyst variables...
 785                 $namehidden = true;
 786                 $allLogs = true;
 787                 foreach( $block as $rcObj ) {
 788                         $oldid = $rcObj->mAttribs['rc_last_oldid'];
 789                         if( $rcObj->mAttribs['rc_new'] ) {
 790                                 $isnew = true;
 791                         }
 792                         // If all log actions to this page were hidden, then don't
 793                         // give the name of the affected page for this block!
 794                         if( !$this->isDeleted( $rcObj, LogPage::DELETED_ACTION ) ) {
 795                                 $namehidden = false;
 796                         }
 797                         $u = $rcObj->userlink;
 798                         if( !isset( $userlinks[$u] ) ) {
 799                                 $userlinks[$u] = 0;
 800                         }
 801                         if( $rcObj->unpatrolled ) {
 802                                 $unpatrolled = true;
 803                         }
 804                         if( $rcObj->mAttribs['rc_type'] != RC_LOG ) {
 805                                 $allLogs = false;
 806                         }
 807                         # Get the latest entry with a page_id and oldid
 808                         # since logs may not have these.
 809                         if( !$curId && $rcObj->mAttribs['rc_cur_id'] ) {
 810                                 $curId = $rcObj->mAttribs['rc_cur_id'];
 811                         }
 812                         if( !$currentRevision && $rcObj->mAttribs['rc_this_oldid'] ) {
 813                                 $currentRevision = $rcObj->mAttribs['rc_this_oldid'];
 814                         }
 815
 816                         $bot = $rcObj->mAttribs['rc_bot'];
 817                         $userlinks[$u]++;
 818                 }
 819
 820                 # Sort the list and convert to text
 821                 krsort( $userlinks );
 822                 asort( $userlinks );
 823                 $users = array();
 824                 foreach( $userlinks as $userlink => $count) {
 825                         $text = $userlink;
 826                         $text .= $wgContLang->getDirMark();
 827                         if( $count > 1 ) {
 828                                 $text .= ' (' . $wgLang->formatNum( $count ) . '×)';
 829                         }
 830                         array_push( $users, $text );
 831                 }
 832
 833                 $users = ' <span class="changedby">[' .
 834                         implode( $this->message['semicolon-separator'], $users ) . ']</span>';
 835
 836                 # ID for JS visibility toggle
 837                 $jsid = $this->rcCacheIndex;
 838                 # onclick handler to toggle hidden/expanded
 839                 $toggleLink = "onclick='toggleVisibility($jsid); return false'";
 840                 # Title for <a> tags
 841                 $expandTitle = htmlspecialchars( wfMsg( 'rc-enhanced-expand' ) );
 842                 $closeTitle = htmlspecialchars( wfMsg( 'rc-enhanced-hide' ) );
 843
 844                 $tl = "<span id='mw-rc-openarrow-$jsid' class='mw-changeslist-expanded' style='visibility:hidden'><a href='#' $toggleLink title='$expandTitle'>" . $this->sideArrow() . "</a></span>";
 845                 $tl .= "<span id='mw-rc-closearrow-$jsid' class='mw-changeslist-hidden' style='display:none'><a href='#' $toggleLink title='$closeTitle'>" . $this->downArrow() . "</a></span>";
 846                 $r .= '<td class="mw-enhanced-rc">'.$tl.'&#160;';
 847
 848                 # Main line
 849                 $r .= $this->recentChangesFlags( $isnew, false, $unpatrolled, '&#160;', $bot );
 850
 851                 # Timestamp
 852                 $r .= '&#160;'.$block[0]->timestamp.'&#160;</td><td style="padding:0px;">';
 853
 854                 # Article link
 855                 if( $namehidden ) {
 856                         $r .= ' <span class="history-deleted">' . wfMsgHtml( 'rev-deleted-event' ) . '</span>';
 857                 } else if( $allLogs ) {
 858                         $r .= $this->maybeWatchedLink( $block[0]->link, $block[0]->watched );
 859                 } else {
 860                         $this->insertArticleLink( $r, $block[0], $block[0]->unpatrolled, $block[0]->watched );
 861                 }
 862
 863                 $r .= $wgContLang->getDirMark();
 864
 865                 $queryParams['curid'] = $curId;
 866                 # Changes message
 867                 $n = count($block);
 868                 static $nchanges = array();
 869                 if ( !isset( $nchanges[$n] ) ) {
 870                         $nchanges[$n] = wfMsgExt( 'nchanges', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) );
 871                 }
 872                 # Total change link
 873                 $r .= ' ';
 874                 if( !$allLogs ) {
 875                         $r .= '(';
 876                         if( !ChangesList::userCan( $rcObj, Revision::DELETED_TEXT ) ) {
 877                                 $r .= $nchanges[$n];
 878                         } else if( $isnew ) {
 879                                 $r .= $nchanges[$n];
 880                         } else {
 881                                 $params = $queryParams;
 882                                 $params['diff'] = $currentRevision;
 883                                 $params['oldid'] = $oldid;
 884
 885                                 $r .= $this->skin->link(
 886                                         $block[0]->getTitle(),
 887                                         $nchanges[$n],
 888                                         array(),
 889                                         $params,
 890                                         array( 'known', 'noclasses' )
 891                                 );
 892                         }
 893                 }
 894
 895                 # History
 896                 if( $allLogs ) {
 897                         // don't show history link for logs
 898                 } else if( $namehidden || !$block[0]->getTitle()->exists() ) {
 899                         $r .= $this->message['pipe-separator'] . $this->message['hist'] . ')';
 900                 } else {
 901                         $params = $queryParams;
 902                         $params['action'] = 'history';
 903
 904                         $r .= $this->message['pipe-separator'] .
 905                                 $this->skin->link(
 906                                         $block[0]->getTitle(),
 907                                         $this->message['hist'],
 908                                         array(),
 909                                         $params,
 910                                         array( 'known', 'noclasses' )
 911                                 ) . ')';
 912                 }
 913                 $r .= ' . . ';
 914
 915                 # Character difference (does not apply if only log items)
 916                 if( $wgRCShowChangedSize && !$allLogs ) {
 917                         $last = 0;
 918                         $first = count($block) - 1;
 919                         # Some events (like logs) have an "empty" size, so we need to skip those...
 920                         while( $last < $first && $block[$last]->mAttribs['rc_new_len'] === null ) {
 921                                 $last++;
 922                         }
 923                         while( $first > $last && $block[$first]->mAttribs['rc_old_len'] === null ) {
 924                                 $first--;
 925                         }
 926                         # Get net change
 927                         $chardiff = $rcObj->getCharacterDifference( $block[$first]->mAttribs['rc_old_len'],
 928                                 $block[$last]->mAttribs['rc_new_len'] );
 929
 930                         if( $chardiff == '' ) {
 931                                 $r .= ' ';
 932                         } else {
 933                                 $r .= ' ' . $chardiff. ' . . ';
 934                         }
 935                 }
 936
 937                 $r .= $users;
 938                 $r .= $this->numberofWatchingusers($block[0]->numberofWatchingusers);
 939
 940                 $r .= "</td></tr></table>\n";
 941
 942                 # Sub-entries
 943                 $r .= '<div id="mw-rc-subentries-'.$jsid.'" class="mw-changeslist-hidden">';
 944                 $r .= '<table class="mw-enhanced-rc">';
 945                 foreach( $block as $rcObj ) {
 946                         # Extract fields from DB into the function scope (rc_xxxx variables)
 947                         // FIXME: Would be good to replace this extract() call with something
 948                         // that explicitly initializes variables.
 949                         # Classes to apply -- TODO implement
 950                         $classes = array();
 951                         extract( $rcObj->mAttribs );
 952
 953                         #$r .= '<tr><td valign="top">'.$this->spacerArrow();
 954                         $r .= '<tr><td style="vertical-align:top;font-family:monospace; padding:0px;">';
 955                         $r .= $this->spacerIndent() . $this->spacerIndent();
 956                         $r .= $this->recentChangesFlags( $rc_new, $rc_minor, $rcObj->unpatrolled, '&#160;', $rc_bot );
 957                         $r .= '&#160;</td><td style="vertical-align:top; padding:0px;"><span style="font-family:monospace">';
 958
 959                         $params = $queryParams;
 960
 961                         if( $rc_this_oldid != 0 ) {
 962                                 $params['oldid'] = $rc_this_oldid;
 963                         }
 964
 965                         # Log timestamp
 966                         if( $rc_type == RC_LOG ) {
 967                                 $link = $rcObj->timestamp;
 968                         # Revision link
 969                         } else if( !ChangesList::userCan($rcObj,Revision::DELETED_TEXT) ) {
 970                                 $link = '<span class="history-deleted">'.$rcObj->timestamp.'</span> ';
 971                         } else {
 972                                 if ( $rcObj->unpatrolled && $rc_type == RC_NEW) {
 973                                         $params['rcid'] = $rcObj->mAttribs['rc_id'];
 974                                 }
 975
 976                                 $link = $this->skin->link(
 977                                                 $rcObj->getTitle(),
 978                                                 $rcObj->timestamp,
 979                                                 array(),
 980                                                 $params,
 981                                                 array( 'known', 'noclasses' )
 982                                         );
 983                                 if( $this->isDeleted($rcObj,Revision::DELETED_TEXT) )
 984                                         $link = '<span class="history-deleted">'.$link.'</span> ';
 985                         }
 986                         $r .= $link . '</span>';
 987
 988                         if ( !$rc_type == RC_LOG || $rc_type == RC_NEW ) {
 989                                 $r .= ' (';
 990                                 $r .= $rcObj->curlink;
 991                                 $r .= $this->message['pipe-separator'];
 992                                 $r .= $rcObj->lastlink;
 993                                 $r .= ')';
 994                         }
 995                         $r .= ' . . ';
 996
 997                         # Character diff
 998                         if( $wgRCShowChangedSize ) {
 999                                 $r .= ( $rcObj->getCharacterDifference() == '' ? '' : $rcObj->getCharacterDifference() . ' . . ' ) ;
1000                         }
1001                         # User links
1002                         $r .= $rcObj->userlink;
1003                         $r .= $rcObj->usertalklink;
1004                         // log action
1005                         $this->insertAction( $r, $rcObj );
1006                         // log comment
1007                         $this->insertComment( $r, $rcObj );
1008                         # Rollback
1009                         $this->insertRollback( $r, $rcObj );
1010                         # Tags
1011                         $this->insertTags( $r, $rcObj, $classes );
1012
1013                         $r .= "</td></tr>\n";
1014                 }
1015                 $r .= "</table></div>\n";
1016
1017                 $this->rcCacheIndex++;
1018
1019                 wfProfileOut( __METHOD__ );
1020
1021                 return $r;
1022         }
1023
1024         /**
1025          * Generate HTML for an arrow or placeholder graphic
1026          * @param $dir String: one of '', 'd', 'l', 'r'
1027          * @param $alt String: text
1028          * @param $title String: text
1029          * @return String: HTML <img> tag
1030          */
1031         protected function arrow( $dir, $alt='', $title='' ) {
1032                 global $wgStylePath;
1033                 $encUrl = htmlspecialchars( $wgStylePath . '/common/images/Arr_' . $dir . '.png' );
1034                 $encAlt = htmlspecialchars( $alt );
1035                 $encTitle = htmlspecialchars( $title );
1036                 return "<img src=\"$encUrl\" width=\"12\" height=\"12\" alt=\"$encAlt\" title=\"$encTitle\" />";
1037         }
1038
1039         /**
1040          * Generate HTML for a right- or left-facing arrow,
1041          * depending on language direction.
1042          * @return String: HTML <img> tag
1043          */
1044         protected function sideArrow() {
1045                 global $wgContLang;
1046                 $dir = $wgContLang->isRTL() ? 'l' : 'r';
1047                 return $this->arrow( $dir, '+', wfMsg( 'rc-enhanced-expand' ) );
1048         }
1049
1050         /**
1051          * Generate HTML for a down-facing arrow
1052          * depending on language direction.
1053          * @return String: HTML <img> tag
1054          */
1055         protected function downArrow() {
1056                 return $this->arrow( 'd', '-', wfMsg( 'rc-enhanced-hide' ) );
1057         }
1058
1059         /**
1060          * Generate HTML for a spacer image
1061          * @return String: HTML <img> tag
1062          */
1063         protected function spacerArrow() {
1064                 return $this->arrow( '', codepointToUtf8( 0xa0 ) ); // non-breaking space
1065         }
1066
1067         /**
1068          * Add a set of spaces
1069          * @return String: HTML <td> tag
1070          */
1071         protected function spacerIndent() {
1072                 return '&#160;&#160;&#160;&#160;&#160;';
1073         }
1074
1075         /**
1076          * Enhanced RC ungrouped line.
1077          * @return String: a HTML formated line (generated using $r)
1078          */
1079         protected function recentChangesBlockLine( $rcObj ) {
1080                 global $wgRCShowChangedSize;
1081
1082                 wfProfileIn( __METHOD__ );
1083
1084                 # Extract fields from DB into the function scope (rc_xxxx variables)
1085                 // FIXME: Would be good to replace this extract() call with something
1086                 // that explicitly initializes variables.
1087                 $classes = array(); // TODO implement
1088                 extract( $rcObj->mAttribs );
1089                 $query['curid'] = $rc_cur_id;
1090
1091                 $r = '<table class="mw-enhanced-rc"><tr>';
1092                 $r .= '<td class="mw-enhanced-rc">' . $this->spacerArrow() . '&#160;';
1093                 # Flag and Timestamp
1094                 if( $rc_type == RC_MOVE || $rc_type == RC_MOVE_OVER_REDIRECT ) {
1095                         $r .= '&#160;&#160;&#160;&#160;'; // 4 flags -> 4 spaces
1096                 } else {
1097                         $r .= $this->recentChangesFlags( $rc_type == RC_NEW, $rc_minor, $rcObj->unpatrolled, '&#160;', $rc_bot );
1098                 }
1099                 $r .= '&#160;'.$rcObj->timestamp.'&#160;</td><td style="padding:0px;">';
1100                 # Article or log link
1101                 if( $rc_log_type ) {
1102                         $logtitle = Title::newFromText( "Log/$rc_log_type", NS_SPECIAL );
1103                         $logname = LogPage::logName( $rc_log_type );
1104                         $r .= '(' . $this->skin->link(
1105                                 $logtitle,
1106                                 $logname,
1107                                 array(),
1108                                 array(),
1109                                 array( 'known', 'noclasses' )
1110                         ) . ')';
1111                 } else {
1112                         $this->insertArticleLink( $r, $rcObj, $rcObj->unpatrolled, $rcObj->watched );
1113                 }
1114                 # Diff and hist links
1115                 if ( $rc_type != RC_LOG ) {
1116                         $r .= ' ('. $rcObj->difflink . $this->message['pipe-separator'];
1117                         $query['action'] = 'history';
1118                         $r .= $this->skin->link(
1119                                 $rcObj->getTitle(),
1120                                 $this->message['hist'],
1121                                 array(),
1122                                 $query,
1123                                 array( 'known', 'noclasses' )
1124                         ) . ')';
1125                 }
1126                 $r .= ' . . ';
1127                 # Character diff
1128                 if( $wgRCShowChangedSize && ($cd = $rcObj->getCharacterDifference()) ) {
1129                         $r .= "$cd . . ";
1130                 }
1131                 # User/talk
1132                 $r .= ' '.$rcObj->userlink . $rcObj->usertalklink;
1133                 # Log action (if any)
1134                 if( $rc_log_type ) {
1135                         if( $this->isDeleted($rcObj,LogPage::DELETED_ACTION) ) {
1136                                 $r .= ' <span class="history-deleted">' . wfMsgHtml('rev-deleted-event') . '</span>';
1137                         } else {
1138                                 $r .= ' ' . LogPage::actionText( $rc_log_type, $rc_log_action, $rcObj->getTitle(),
1139                                         $this->skin, LogPage::extractParams($rc_params), true, true );
1140                         }
1141                 }
1142                 $this->insertComment( $r, $rcObj );
1143                 $this->insertRollback( $r, $rcObj );
1144                 # Tags
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         protected function recentChangesBlock() {
1161                 if( count ( $this->rc_cache ) == 0 ) {
1162                         return '';
1163                 }
1164
1165                 wfProfileIn( __METHOD__ );
1166
1167                 $blockOut = '';
1168                 foreach( $this->rc_cache as $block ) {
1169                         if( count( $block ) < 2 ) {
1170                                 $blockOut .= $this->recentChangesBlockLine( array_shift( $block ) );
1171                         } else {
1172                                 $blockOut .= $this->recentChangesBlockGroup( $block );
1173                         }
1174                 }
1175
1176                 wfProfileOut( __METHOD__ );
1177
1178                 return '<div>'.$blockOut.'</div>';
1179         }
1180
1181         /**
1182          * Returns text for the end of RC
1183          * If enhanced RC is in use, returns pretty much all the text
1184          */
1185         public function endRecentChangesList() {
1186                 return $this->recentChangesBlock() . parent::endRecentChangesList();
1187         }
1188
1189 }