includes/ChangesList.php

   1 <?php
   2 /**
   3  * Classes to show various lists of changes:
   4  * - watchlist
   5  * - related changes
   6  * - recent changes
   7  *
   8  * @file
   9  */
  10
  11 /**
  12  * @todo document
  13  */
  14 class RCCacheEntry extends RecentChange {
  15         var $secureName, $link;
  16         var $curlink , $difflink, $lastlink, $usertalklink, $versionlink;
  17         var $userlink, $timestamp, $watched;
  18
  19         /**
  20          * @static
  21          * @param $rc RecentChange
  22          * @return RCCacheEntry
  23          */
  24         static function newFromParent( $rc ) {
  25                 $rc2 = new RCCacheEntry;
  26                 $rc2->mAttribs = $rc->mAttribs;
  27                 $rc2->mExtra = $rc->mExtra;
  28                 return $rc2;
  29         }
  30 }
  31
  32 /**
  33  * Base class for all changes lists
  34  */
  35 class ChangesList {
  36
  37         /**
  38          * @var Skin
  39          */
  40         public $skin;
  41         protected $watchlist = false;
  42
  43         /**
  44         * Changeslist contructor
  45         * @param $skin Skin
  46         */
  47         public function __construct( $skin ) {
  48                 $this->skin = $skin;
  49                 $this->preCacheMessages();
  50         }
  51
  52         /**
  53          * Fetch an appropriate changes list class for the specified user
  54          * Some users might want to use an enhanced list format, for instance
  55          *
  56          * @param $user User to fetch the list class for
  57          * @return ChangesList derivative
  58          */
  59         public static function newFromUser( $user ) {
  60                 global $wgRequest;
  61
  62                 $sk = $user->getSkin();
  63                 $list = null;
  64                 if( wfRunHooks( 'FetchChangesList', array( $user, &$sk, &$list ) ) ) {
  65                         $new = $wgRequest->getBool( 'enhanced', $user->getOption( 'usenewrc' ) );
  66                         return $new ? new EnhancedChangesList( $sk ) : new OldChangesList( $sk );
  67                 } else {
  68                         return $list;
  69                 }
  70         }
  71
  72         /**
  73          * Sets the list to use a <li class="watchlist-(namespace)-(page)"> tag
  74          * @param $value Boolean
  75          */
  76         public function setWatchlistDivs( $value = true ) {
  77                 $this->watchlist = $value;
  78         }
  79
  80         /**
  81          * As we use the same small set of messages in various methods and that
  82          * they are called often, we call them once and save them in $this->message
  83          */
  84         private function preCacheMessages() {
  85                 if( !isset( $this->message ) ) {
  86                         foreach ( explode( ' ', 'cur diff hist last blocklink history ' .
  87                         'semicolon-separator pipe-separator' ) as $msg ) {
  88                                 $this->message[$msg] = wfMsgExt( $msg, array( 'escapenoentities' ) );
  89                         }
  90                 }
  91         }
  92
  93         /**
  94          * Returns the appropriate flags for new page, minor change and patrolling
  95          * @param $flags Array Associative array of 'flag' => Bool
  96          * @param $nothing String to use for empty space
  97          * @return String
  98          */
  99         protected function recentChangesFlags( $flags, $nothing = '&#160;' ) {
 100                 $f = '';
 101                 foreach( array( 'newpage', 'minor', 'bot', 'unpatrolled' ) as $flag ){
 102                         $f .= isset( $flags[$flag] ) && $flags[$flag]
 103                                 ? self::flag( $flag )
 104                                 : $nothing;
 105                 }
 106                 return $f;
 107         }
 108
 109         /**
 110          * Provide the <abbr> element appropriate to a given abbreviated flag,
 111          * namely the flag indicating a new page, a minor edit, a bot edit, or an
 112          * unpatrolled edit.  By default in English it will contain "N", "m", "b",
 113          * "!" respectively, plus it will have an appropriate title and class.
 114          *
 115          * @param $key String: 'newpage', 'unpatrolled', 'minor', or 'bot'
 116          * @return String: Raw HTML
 117          */
 118         public static function flag( $flag ) {
 119                 static $messages = null;
 120                 if ( is_null( $messages ) ) {
 121                         $messages = array(
 122                                 'newpage' => array( 'newpageletter', 'recentchanges-label-newpage' ),
 123                                 'minoredit' => array( 'minoreditletter', 'recentchanges-label-minor' ),
 124                                 'botedit' => array( 'boteditletter', 'recentchanges-label-bot' ),
 125                                 'unpatrolled' => array( 'unpatrolledletter', 'recentchanges-label-unpatrolled' ),
 126                         );
 127                         foreach( $messages as &$value ) {
 128                                 $value[0] = wfMsgExt( $value[0], 'escapenoentities' );
 129                                 $value[1] = wfMsgExt( $value[1], 'escapenoentities' );
 130                         }
 131                 }
 132
 133                 # Inconsistent naming, bleh
 134                 $map = array(
 135                         'newpage' => 'newpage',
 136                         'minor' => 'minoredit',
 137                         'bot' => 'botedit',
 138                         'unpatrolled' => 'unpatrolled',
 139                         'minoredit' => 'minoredit',
 140                         'botedit' => 'botedit',
 141                 );
 142                 $flag = $map[$flag];
 143
 144                 return "<abbr class='$flag' title='" . $messages[$flag][1] . "'>" . $messages[$flag][0] . '</abbr>';
 145         }
 146
 147         /**
 148          * Returns text for the start of the tabular part of RC
 149          * @return String
 150          */
 151         public function beginRecentChangesList() {
 152                 $this->rc_cache = array();
 153                 $this->rcMoveIndex = 0;
 154                 $this->rcCacheIndex = 0;
 155                 $this->lastdate = '';
 156                 $this->rclistOpen = false;
 157                 return '';
 158         }
 159
 160         /**
 161          * Show formatted char difference
 162          * @param $old Integer: bytes
 163          * @param $new Integer: bytes
 164          * @returns String
 165          */
 166         public static function showCharacterDifference( $old, $new ) {
 167                 global $wgRCChangedSizeThreshold, $wgLang, $wgMiserMode;
 168                 $szdiff = $new - $old;
 169
 170                 $code = $wgLang->getCode();
 171                 static $fastCharDiff = array();
 172                 if ( !isset($fastCharDiff[$code]) ) {
 173                         $fastCharDiff[$code] = $wgMiserMode || wfMsgNoTrans( 'rc-change-size' ) === '$1';
 174                 }
 175
 176                 $formatedSize = $wgLang->formatNum($szdiff);
 177
 178                 if ( !$fastCharDiff[$code] ) {
 179                         $formatedSize = wfMsgExt( 'rc-change-size', array( 'parsemag', 'escape' ), $formatedSize );
 180                 }
 181
 182                 if( abs( $szdiff ) > abs( $wgRCChangedSizeThreshold ) ) {
 183                         $tag = 'strong';
 184                 } else {
 185                     $tag = 'span';
 186                 }
 187                 if( $szdiff === 0 ) {
 188                         return "<$tag class='mw-plusminus-null'>($formatedSize)</$tag>";
 189                 } elseif( $szdiff > 0 ) {
 190                         return "<$tag class='mw-plusminus-pos'>(+$formatedSize)</$tag>";
 191             } else {
 192                         return "<$tag class='mw-plusminus-neg'>($formatedSize)</$tag>";
 193                 }
 194         }
 195
 196         /**
 197          * Returns text for the end of RC
 198          * @return String
 199          */
 200         public function endRecentChangesList() {
 201                 if( $this->rclistOpen ) {
 202                         return "</ul>\n";
 203                 } else {
 204                         return '';
 205                 }
 206         }
 207
 208         /**
 209          * @param $s
 210          * @param $rc RecentChange
 211          * @return void
 212          */
 213         public function insertMove( &$s, $rc ) {
 214                 # Diff
 215                 $s .= '(' . $this->message['diff'] . ') (';
 216                 # Hist
 217                 $s .= $this->skin->link(
 218                         $rc->getMovedToTitle(),
 219                         $this->message['hist'],
 220                         array(),
 221                         array( 'action' => 'history' ),
 222                         array( 'known', 'noclasses' )
 223                 ) . ') . . ';
 224                 # "[[x]] moved to [[y]]"
 225                 $msg = ( $rc->mAttribs['rc_type'] == RC_MOVE ) ? '1movedto2' : '1movedto2_redir';
 226                 $s .= wfMsg(
 227                         $msg,
 228                         $this->skin->link(
 229                                 $rc->getTitle(),
 230                                 null,
 231                                 array(),
 232                                 array( 'redirect' => 'no' ),
 233                                 array( 'known', 'noclasses' )
 234                         ),
 235                         $this->skin->link(
 236                                 $rc->getMovedToTitle(),
 237                                 null,
 238                                 array(),
 239                                 array(),
 240                                 array( 'known', 'noclasses' )
 241                         )
 242                 );
 243         }
 244
 245         public function insertDateHeader( &$s, $rc_timestamp ) {
 246                 global $wgLang;
 247                 # Make date header if necessary
 248                 $date = $wgLang->date( $rc_timestamp, true, true );
 249                 if( $date != $this->lastdate ) {
 250                         if( $this->lastdate != '' ) {
 251                                 $s .= "</ul>\n";
 252                         }
 253                         $s .= Xml::element( 'h4', null, $date ) . "\n<ul class=\"special\">";
 254                         $this->lastdate = $date;
 255                         $this->rclistOpen = true;
 256                 }
 257         }
 258
 259         public function insertLog( &$s, $title, $logtype ) {
 260                 $logname = LogPage::logName( $logtype );
 261                 $s .= '(' . $this->skin->link(
 262                         $title,
 263                         $logname,
 264                         array(),
 265                         array(),
 266                         array( 'known', 'noclasses' )
 267                 ) . ')';
 268         }
 269
 270         /**
 271          * @param $s
 272          * @param $rc RecentChange
 273          * @param $unpatrolled
 274          * @return void
 275          */
 276         public function insertDiffHist( &$s, &$rc, $unpatrolled ) {
 277                 # Diff link
 278                 if( $rc->mAttribs['rc_type'] == RC_NEW || $rc->mAttribs['rc_type'] == RC_LOG ) {
 279                         $diffLink = $this->message['diff'];
 280                 } else if( !self::userCan($rc,Revision::DELETED_TEXT) ) {
 281                         $diffLink = $this->message['diff'];
 282                 } else {
 283                         $query = array(
 284                                 'curid' => $rc->mAttribs['rc_cur_id'],
 285                                 'diff'  => $rc->mAttribs['rc_this_oldid'],
 286                                 'oldid' => $rc->mAttribs['rc_last_oldid']
 287                         );
 288
 289                         if( $unpatrolled ) {
 290                                 $query['rcid'] = $rc->mAttribs['rc_id'];
 291                         };
 292
 293                         $diffLink = $this->skin->link(
 294                                 $rc->getTitle(),
 295                                 $this->message['diff'],
 296                                 array( 'tabindex' => $rc->counter ),
 297                                 $query,
 298                                 array( 'known', 'noclasses' )
 299                         );
 300                 }
 301                 $s .= '(' . $diffLink . $this->message['pipe-separator'];
 302                 # History link
 303                 $s .= $this->skin->link(
 304                         $rc->getTitle(),
 305                         $this->message['hist'],
 306                         array(),
 307                         array(
 308                                 'curid' => $rc->mAttribs['rc_cur_id'],
 309                                 'action' => 'history'
 310                         ),
 311                         array( 'known', 'noclasses' )
 312                 );
 313                 $s .= ') . . ';
 314         }
 315
 316         /**
 317          * @param $s
 318          * @param $rc RecentChange
 319          * @param $unpatrolled
 320          * @param $watched
 321          * @return void
 322          */
 323         public function insertArticleLink( &$s, &$rc, $unpatrolled, $watched ) {
 324                 global $wgContLang;
 325                 # If it's a new article, there is no diff link, but if it hasn't been
 326                 # patrolled yet, we need to give users a way to do so
 327                 $params = array();
 328
 329                 if ( $unpatrolled && $rc->mAttribs['rc_type'] == RC_NEW ) {
 330                         $params['rcid'] = $rc->mAttribs['rc_id'];
 331                 }
 332
 333                 if( $this->isDeleted($rc,Revision::DELETED_TEXT) ) {
 334                         $articlelink = $this->skin->link(
 335                                 $rc->getTitle(),
 336                                 null,
 337                                 array(),
 338                                 $params,
 339                                 array( 'known', 'noclasses' )
 340                         );
 341                         $articlelink = '<span class="history-deleted">' . $articlelink . '</span>';
 342                 } else {
 343                         $articlelink = ' '. $this->skin->link(
 344                                 $rc->getTitle(),
 345                                 null,
 346                                 array(),
 347                                 $params,
 348                                 array( 'known', 'noclasses' )
 349                         );
 350                 }
 351                 # Bolden pages watched by this user
 352                 if( $watched ) {
 353                         $articlelink = "<strong class=\"mw-watched\">{$articlelink}</strong>";
 354                 }
 355                 # RTL/LTR marker
 356                 $articlelink .= $wgContLang->getDirMark();
 357
 358                 wfRunHooks( 'ChangesListInsertArticleLink',
 359                         array(&$this, &$articlelink, &$s, &$rc, $unpatrolled, $watched) );
 360
 361                 $s .= " $articlelink";
 362         }
 363
 364         /**
 365          * @param $s
 366          * @param $rc RecentChange
 367          * @return void
 368          */
 369         public function insertTimestamp( &$s, $rc ) {
 370                 global $wgLang;
 371                 $s .= $this->message['semicolon-separator'] .
 372                         $wgLang->time( $rc->mAttribs['rc_timestamp'], true, true ) . ' . . ';
 373         }
 374
 375         /** Insert links to user page, user talk page and eventually a blocking link
 376          *
 377          * @param $rc RecentChange
 378          */
 379         public function insertUserRelatedLinks( &$s, &$rc ) {
 380                 if( $this->isDeleted( $rc, Revision::DELETED_USER ) ) {
 381                         $s .= ' <span class="history-deleted">' . wfMsgHtml( 'rev-deleted-user' ) . '</span>';
 382                 } else {
 383                         $s .= $this->skin->userLink( $rc->mAttribs['rc_user'], $rc->mAttribs['rc_user_text'] );
 384                         $s .= $this->skin->userToolLinks( $rc->mAttribs['rc_user'], $rc->mAttribs['rc_user_text'] );
 385                 }
 386         }
 387
 388         /** insert a formatted action
 389          *
 390          * @param $rc RecentChange
 391          */
 392         public function insertAction( &$s, &$rc ) {
 393                 if( $rc->mAttribs['rc_type'] == RC_LOG ) {
 394                         if( $this->isDeleted( $rc, LogPage::DELETED_ACTION ) ) {
 395                                 $s .= ' <span class="history-deleted">' . wfMsgHtml( 'rev-deleted-event' ) . '</span>';
 396                         } else {
 397                                 $s .= ' '.LogPage::actionText( $rc->mAttribs['rc_log_type'], $rc->mAttribs['rc_log_action'],
 398                                         $rc->getTitle(), $this->skin, LogPage::extractParams( $rc->mAttribs['rc_params'] ), true, true );
 399                         }
 400                 }
 401         }
 402
 403         /** insert a formatted comment
 404          *
 405          * @param $rc RecentChange
 406          */
 407         public function insertComment( &$s, &$rc ) {
 408                 if( $rc->mAttribs['rc_type'] != RC_MOVE && $rc->mAttribs['rc_type'] != RC_MOVE_OVER_REDIRECT ) {
 409                         if( $this->isDeleted( $rc, Revision::DELETED_COMMENT ) ) {
 410                                 $s .= ' <span class="history-deleted">' . wfMsgHtml( 'rev-deleted-comment' ) . '</span>';
 411                         } else {
 412                                 $s .= $this->skin->commentBlock( $rc->mAttribs['rc_comment'], $rc->getTitle() );
 413                         }
 414                 }
 415         }
 416
 417         /**
 418          * Check whether to enable recent changes patrol features
 419          * @return Boolean
 420          */
 421         public static function usePatrol() {
 422                 global $wgUser;
 423                 return $wgUser->useRCPatrol();
 424         }
 425
 426         /**
 427          * Returns the string which indicates the number of watching users
 428          */
 429         protected function numberofWatchingusers( $count ) {
 430                 global $wgLang;
 431                 static $cache = array();
 432                 if( $count > 0 ) {
 433                         if( !isset( $cache[$count] ) ) {
 434                                 $cache[$count] = wfMsgExt( 'number_of_watching_users_RCview',
 435                                         array('parsemag', 'escape' ), $wgLang->formatNum( $count ) );
 436                         }
 437                         return $cache[$count];
 438                 } else {
 439                         return '';
 440                 }
 441         }
 442
 443         /**
 444          * Determine if said field of a revision is hidden
 445          * @param $rc RCCacheEntry
 446          * @param $field Integer: one of DELETED_* bitfield constants
 447          * @return Boolean
 448          */
 449         public static function isDeleted( $rc, $field ) {
 450                 return ( $rc->mAttribs['rc_deleted'] & $field ) == $field;
 451         }
 452
 453         /**
 454          * Determine if the current user is allowed to view a particular
 455          * field of this revision, if it's marked as deleted.
 456          * @param $rc RCCacheEntry
 457          * @param $field Integer
 458          * @return Boolean
 459          */
 460         public static function userCan( $rc, $field ) {
 461                 if( $rc->mAttribs['rc_type'] == RC_LOG ) {
 462                         return LogEventsList::userCanBitfield( $rc->mAttribs['rc_deleted'], $field );
 463                 } else {
 464                         return Revision::userCanBitfield( $rc->mAttribs['rc_deleted'], $field );
 465                 }
 466         }
 467
 468         protected function maybeWatchedLink( $link, $watched = false ) {
 469                 if( $watched ) {
 470                         return '<strong class="mw-watched">' . $link . '</strong>';
 471                 } else {
 472                         return '<span class="mw-rc-unwatched">' . $link . '</span>';
 473                 }
 474         }
 475
 476         /** Inserts a rollback link
 477          *
 478          * @param $s
 479          * @param $rc RecentChange
 480          */
 481         public function insertRollback( &$s, &$rc ) {
 482                 global $wgUser;
 483                 if( !$rc->mAttribs['rc_new'] && $rc->mAttribs['rc_this_oldid'] && $rc->mAttribs['rc_cur_id'] ) {
 484                         $page = $rc->getTitle();
 485                         /** Check for rollback and edit permissions, disallow special pages, and only
 486                           * show a link on the top-most revision */
 487                         if ($wgUser->isAllowed('rollback') && $rc->mAttribs['page_latest'] == $rc->mAttribs['rc_this_oldid'] )
 488                         {
 489                                 $rev = new Revision( array(
 490                                         'id'        => $rc->mAttribs['rc_this_oldid'],
 491                                         'user'      => $rc->mAttribs['rc_user'],
 492                                         'user_text' => $rc->mAttribs['rc_user_text'],
 493                                         'deleted'   => $rc->mAttribs['rc_deleted']
 494                                 ) );
 495                                 $rev->setTitle( $page );
 496                                 $s .= ' '.$this->skin->generateRollback( $rev );
 497                         }
 498                 }
 499         }
 500
 501         /**
 502          * @param $s
 503          * @param $rc RecentChange
 504          * @param $classes
 505          * @return
 506          */
 507         public function insertTags( &$s, &$rc, &$classes ) {
 508                 if ( empty($rc->mAttribs['ts_tags']) )
 509                         return;
 510
 511                 list($tagSummary, $newClasses) = ChangeTags::formatSummaryRow( $rc->mAttribs['ts_tags'], 'changeslist' );
 512                 $classes = array_merge( $classes, $newClasses );
 513                 $s .= ' ' . $tagSummary;
 514         }
 515
 516         public function insertExtra( &$s, &$rc, &$classes ) {
 517                 ## Empty, used for subclassers to add anything special.
 518         }
 519 }
 520
 521
 522 /**
 523  * Generate a list of changes using the good old system (no javascript)
 524  */
 525 class OldChangesList extends ChangesList {
 526         /**
 527          * Format a line using the old system (aka without any javascript).
 528          *
 529          * @param $rc RecentChange
 530          */
 531         public function recentChangesLine( &$rc, $watched = false, $linenumber = null ) {
 532                 global $wgLang, $wgRCShowChangedSize, $wgUser;
 533                 wfProfileIn( __METHOD__ );
 534                 # Should patrol-related stuff be shown?
 535                 $unpatrolled = $wgUser->useRCPatrol() && !$rc->mAttribs['rc_patrolled'];
 536
 537                 $dateheader = ''; // $s now contains only <li>...</li>, for hooks' convenience.
 538                 $this->insertDateHeader( $dateheader, $rc->mAttribs['rc_timestamp'] );
 539
 540                 $s = '';
 541                 $classes = array();
 542                 // use mw-line-even/mw-line-odd class only if linenumber is given (feature from bug 14468)
 543                 if( $linenumber ) {
 544                         if( $linenumber & 1 ) {
 545                                 $classes[] = 'mw-line-odd';
 546                         }
 547                         else {
 548                                 $classes[] = 'mw-line-even';
 549                         }
 550                 }
 551
 552                 // Moved pages
 553                 if( $rc->mAttribs['rc_type'] == RC_MOVE || $rc->mAttribs['rc_type'] == RC_MOVE_OVER_REDIRECT ) {
 554                         $this->insertMove( $s, $rc );
 555                 // Log entries
 556                 } elseif( $rc->mAttribs['rc_log_type'] ) {
 557                         $logtitle = Title::newFromText( 'Log/'.$rc->mAttribs['rc_log_type'], NS_SPECIAL );
 558                         $this->insertLog( $s, $logtitle, $rc->mAttribs['rc_log_type'] );
 559                 // Log entries (old format) or log targets, and special pages
 560                 } elseif( $rc->mAttribs['rc_namespace'] == NS_SPECIAL ) {
 561                         list( $name, $subpage ) = SpecialPageFactory::resolveAlias( $rc->mAttribs['rc_title'] );
 562                         if( $name == 'Log' ) {
 563                                 $this->insertLog( $s, $rc->getTitle(), $subpage );
 564                         }
 565                 // Regular entries
 566                 } else {
 567                         $this->insertDiffHist( $s, $rc, $unpatrolled );
 568                         # M, N, b and ! (minor, new, bot and unpatrolled)
 569                         $s .= $this->recentChangesFlags(
 570                                 array(
 571                                         'newpage' => $rc->mAttribs['rc_new'],
 572                                         'minor' => $rc->mAttribs['rc_minor'],
 573                                         'unpatrolled' => $unpatrolled,
 574                                         'bot' => $rc->mAttribs['rc_bot']
 575                                 ),
 576                                 ''
 577                         );
 578                         $this->insertArticleLink( $s, $rc, $unpatrolled, $watched );
 579                 }
 580                 # Edit/log timestamp
 581                 $this->insertTimestamp( $s, $rc );
 582                 # Bytes added or removed
 583                 if( $wgRCShowChangedSize ) {
 584                         $cd = $rc->getCharacterDifference();
 585                         if( $cd != '' ) {
 586                                 $s .= "$cd  . . ";
 587                         }
 588                 }
 589                 # User tool links
 590                 $this->insertUserRelatedLinks( $s, $rc );
 591                 # Log action text (if any)
 592                 $this->insertAction( $s, $rc );
 593                 # Edit or log comment
 594                 $this->insertComment( $s, $rc );
 595                 # Tags
 596                 $this->insertTags( $s, $rc, $classes );
 597                 # Rollback
 598                 $this->insertRollback( $s, $rc );
 599                 # For subclasses
 600                 $this->insertExtra( $s, $rc, $classes );
 601
 602                 # How many users watch this page
 603                 if( $rc->numberofWatchingusers > 0 ) {
 604                         $s .= ' ' . wfMsgExt( 'number_of_watching_users_RCview',
 605                                 array( 'parsemag', 'escape' ), $wgLang->formatNum( $rc->numberofWatchingusers ) );
 606                 }
 607
 608                 if( $this->watchlist ) {
 609                         $classes[] = Sanitizer::escapeClass( 'watchlist-'.$rc->mAttribs['rc_namespace'].'-'.$rc->mAttribs['rc_title'] );
 610                 }
 611
 612                 wfRunHooks( 'OldChangesListRecentChangesLine', array(&$this, &$s, $rc) );
 613
 614                 wfProfileOut( __METHOD__ );
 615                 return "$dateheader<li class=\"".implode( ' ', $classes )."\">".$s."</li>\n";
 616         }
 617 }
 618
 619
 620 /**
 621  * Generate a list of changes using an Enhanced system (uses javascript).
 622  */
 623 class EnhancedChangesList extends ChangesList {
 624         /**
 625          * Add the JavaScript file for enhanced changeslist
 626          * @return String
 627          */
 628         public function beginRecentChangesList() {
 629                 global $wgOut;
 630                 $this->rc_cache = array();
 631                 $this->rcMoveIndex = 0;
 632                 $this->rcCacheIndex = 0;
 633                 $this->lastdate = '';
 634                 $this->rclistOpen = false;
 635                 $wgOut->addModuleStyles( 'mediawiki.special.changeslist' );
 636                 return '';
 637         }
 638         /**
 639          * Format a line for enhanced recentchange (aka with javascript and block of lines).
 640          *
 641          * @param $baseRC RecentChange
 642          */
 643         public function recentChangesLine( &$baseRC, $watched = false ) {
 644                 global $wgLang, $wgUser;
 645
 646                 wfProfileIn( __METHOD__ );
 647
 648                 # Create a specialised object
 649                 $rc = RCCacheEntry::newFromParent( $baseRC );
 650
 651                 $curIdEq = array( 'curid' => $rc->mAttribs['rc_cur_id'] );
 652
 653                 # If it's a new day, add the headline and flush the cache
 654                 $date = $wgLang->date( $rc->mAttribs['rc_timestamp'], true );
 655                 $ret = '';
 656                 if( $date != $this->lastdate ) {
 657                         # Process current cache
 658                         $ret = $this->recentChangesBlock();
 659                         $this->rc_cache = array();
 660                         $ret .= Xml::element( 'h4', null, $date ) . "\n";
 661                         $this->lastdate = $date;
 662                 }
 663
 664                 # Should patrol-related stuff be shown?
 665                 if( $wgUser->useRCPatrol() ) {
 666                         $rc->unpatrolled = !$rc->mAttribs['rc_patrolled'];
 667                 } else {
 668                         $rc->unpatrolled = false;
 669                 }
 670
 671                 $showdifflinks = true;
 672                 # Make article link
 673                 $type = $rc->mAttribs['rc_type'];
 674                 $logType = $rc->mAttribs['rc_log_type'];
 675                 // Page moves
 676                 if( $type == RC_MOVE || $type == RC_MOVE_OVER_REDIRECT ) {
 677                         $msg = ( $type == RC_MOVE ) ? "1movedto2" : "1movedto2_redir";
 678                         $clink = wfMsg( $msg, $this->skin->linkKnown( $rc->getTitle(), null,
 679                                 array(), array( 'redirect' => 'no' ) ),
 680                                 $this->skin->linkKnown( $rc->getMovedToTitle() ) );
 681                 // New unpatrolled pages
 682                 } else if( $rc->unpatrolled && $type == RC_NEW ) {
 683                         $clink = $this->skin->linkKnown( $rc->getTitle(), null, array(),
 684                                 array( 'rcid' => $rc->mAttribs['rc_id'] ) );
 685                 // Log entries
 686                 } else if( $type == RC_LOG ) {
 687                         if( $logType ) {
 688                                 $logtitle = SpecialPage::getTitleFor( 'Log', $logType );
 689                                 $clink = '(' . $this->skin->linkKnown( $logtitle,
 690                                         LogPage::logName( $logType ) ) . ')';
 691                         } else {
 692                                 $clink = $this->skin->link( $rc->getTitle() );
 693                         }
 694                         $watched = false;
 695                 // Log entries (old format) and special pages
 696                 } elseif( $rc->mAttribs['rc_namespace'] == NS_SPECIAL ) {
 697                         list( $specialName, $logtype ) = SpecialPageFactory::resolveAlias( $rc->mAttribs['rc_title'] );
 698                         if ( $specialName == 'Log' ) {
 699                                 # Log updates, etc
 700                                 $logname = LogPage::logName( $logtype );
 701                                 $clink = '(' . $this->skin->linkKnown( $rc->getTitle(), $logname ) . ')';
 702                         } else {
 703                                 wfDebug( "Unexpected special page in recentchanges\n" );
 704                                 $clink = '';
 705                         }
 706                 // Edits
 707                 } else {
 708                         $clink = $this->skin->linkKnown( $rc->getTitle() );
 709                 }
 710
 711                 # Don't show unusable diff links
 712                 if ( !ChangesList::userCan($rc,Revision::DELETED_TEXT) ) {
 713                         $showdifflinks = false;
 714                 }
 715
 716                 $time = $wgLang->time( $rc->mAttribs['rc_timestamp'], true, true );
 717                 $rc->watched = $watched;
 718                 $rc->link = $clink;
 719                 $rc->timestamp = $time;
 720                 $rc->numberofWatchingusers = $baseRC->numberofWatchingusers;
 721
 722                 # Make "cur" and "diff" links.  Do not use link(), it is too slow if
 723                 # called too many times (50% of CPU time on RecentChanges!).
 724                 $thisOldid = $rc->mAttribs['rc_this_oldid'];
 725                 $lastOldid = $rc->mAttribs['rc_last_oldid'];
 726                 if( $rc->unpatrolled ) {
 727                         $rcIdQuery = array( 'rcid' => $rc->mAttribs['rc_id'] );
 728                 } else {
 729                         $rcIdQuery = array();
 730                 }
 731                 $querycur = $curIdEq + array( 'diff' => '0', 'oldid' => $thisOldid );
 732                 $querydiff = $curIdEq + array( 'diff' => $thisOldid, 'oldid' =>
 733                         $lastOldid ) + $rcIdQuery;
 734
 735                 if( !$showdifflinks ) {
 736                         $curLink = $this->message['cur'];
 737                         $diffLink = $this->message['diff'];
 738                 } else if( in_array( $type, array( RC_NEW, RC_LOG, RC_MOVE, RC_MOVE_OVER_REDIRECT ) ) ) {
 739                         if ( $type != RC_NEW ) {
 740                                 $curLink = $this->message['cur'];
 741                         } else {
 742                                 $curUrl = htmlspecialchars( $rc->getTitle()->getLinkUrl( $querycur ) );
 743                                 $curLink = "<a href=\"$curUrl\" tabindex=\"{$baseRC->counter}\">{$this->message['cur']}</a>";
 744                         }
 745                         $diffLink = $this->message['diff'];
 746                 } else {
 747                         $diffUrl = htmlspecialchars( $rc->getTitle()->getLinkUrl( $querydiff ) );
 748                         $curUrl = htmlspecialchars( $rc->getTitle()->getLinkUrl( $querycur ) );
 749                         $diffLink = "<a href=\"$diffUrl\" tabindex=\"{$baseRC->counter}\">{$this->message['diff']}</a>";
 750                         $curLink = "<a href=\"$curUrl\" tabindex=\"{$baseRC->counter}\">{$this->message['cur']}</a>";
 751                 }
 752
 753                 # Make "last" link
 754                 if( !$showdifflinks || !$lastOldid ) {
 755                         $lastLink = $this->message['last'];
 756                 } else if( in_array( $type, array( RC_LOG, RC_MOVE, RC_MOVE_OVER_REDIRECT ) ) ) {
 757                         $lastLink = $this->message['last'];
 758                 } else {
 759                         $lastLink = $this->skin->linkKnown( $rc->getTitle(), $this->message['last'],
 760                                 array(), $curIdEq + array('diff' => $thisOldid, 'oldid' => $lastOldid) + $rcIdQuery );
 761                 }
 762
 763                 # Make user links
 764                 if( $this->isDeleted( $rc, Revision::DELETED_USER ) ) {
 765                         $rc->userlink = ' <span class="history-deleted">' . wfMsgHtml( 'rev-deleted-user' ) . '</span>';
 766                 } else {
 767                         $rc->userlink = $this->skin->userLink( $rc->mAttribs['rc_user'], $rc->mAttribs['rc_user_text'] );
 768                         $rc->usertalklink = $this->skin->userToolLinks( $rc->mAttribs['rc_user'], $rc->mAttribs['rc_user_text'] );
 769                 }
 770
 771                 $rc->lastlink = $lastLink;
 772                 $rc->curlink  = $curLink;
 773                 $rc->difflink = $diffLink;
 774
 775                 # Put accumulated information into the cache, for later display
 776                 # Page moves go on their own line
 777                 $title = $rc->getTitle();
 778                 $secureName = $title->getPrefixedDBkey();
 779                 if( $type == RC_MOVE || $type == RC_MOVE_OVER_REDIRECT ) {
 780                         # Use an @ character to prevent collision with page names
 781                         $this->rc_cache['@@' . ($this->rcMoveIndex++)] = array($rc);
 782                 } else {
 783                         # Logs are grouped by type
 784                         if( $type == RC_LOG ){
 785                                 $secureName = SpecialPage::getTitleFor( 'Log', $logType )->getPrefixedDBkey();
 786                         }
 787                         if( !isset( $this->rc_cache[$secureName] ) ) {
 788                                 $this->rc_cache[$secureName] = array();
 789                         }
 790
 791                         array_push( $this->rc_cache[$secureName], $rc );
 792                 }
 793
 794                 wfProfileOut( __METHOD__ );
 795
 796                 return $ret;
 797         }
 798
 799         /**
 800          * Enhanced RC group
 801          */
 802         protected function recentChangesBlockGroup( $block ) {
 803                 global $wgLang, $wgContLang, $wgRCShowChangedSize;
 804
 805                 wfProfileIn( __METHOD__ );
 806
 807                 # Add the namespace and title of the block as part of the class
 808                 if ( $block[0]->mAttribs['rc_log_type'] ) {
 809                         # Log entry
 810                         $classes = 'mw-collapsible mw-collapsed mw-enhanced-rc ' . Sanitizer::escapeClass( 'mw-changeslist-log-' . $block[0]->mAttribs['rc_log_type'] . '-' . $block[0]->mAttribs['rc_title'] );
 811                 } else {
 812                         $classes = 'mw-collapsible mw-collapsed mw-enhanced-rc ' . Sanitizer::escapeClass( 'mw-changeslist-ns' . $block[0]->mAttribs['rc_namespace'] . '-' . $block[0]->mAttribs['rc_title'] );
 813                 }
 814                 $r = Html::openElement( 'table', array( 'class' => $classes ) ) .
 815                         Html::openElement( 'tr' );
 816
 817                 # Collate list of users
 818                 $userlinks = array();
 819                 # Other properties
 820                 $unpatrolled = false;
 821                 $isnew = false;
 822                 $curId = $currentRevision = 0;
 823                 # Some catalyst variables...
 824                 $namehidden = true;
 825                 $allLogs = true;
 826                 foreach( $block as $rcObj ) {
 827                         $oldid = $rcObj->mAttribs['rc_last_oldid'];
 828                         if( $rcObj->mAttribs['rc_new'] ) {
 829                                 $isnew = true;
 830                         }
 831                         // If all log actions to this page were hidden, then don't
 832                         // give the name of the affected page for this block!
 833                         if( !$this->isDeleted( $rcObj, LogPage::DELETED_ACTION ) ) {
 834                                 $namehidden = false;
 835                         }
 836                         $u = $rcObj->userlink;
 837                         if( !isset( $userlinks[$u] ) ) {
 838                                 $userlinks[$u] = 0;
 839                         }
 840                         if( $rcObj->unpatrolled ) {
 841                                 $unpatrolled = true;
 842                         }
 843                         if( $rcObj->mAttribs['rc_type'] != RC_LOG ) {
 844                                 $allLogs = false;
 845                         }
 846                         # Get the latest entry with a page_id and oldid
 847                         # since logs may not have these.
 848                         if( !$curId && $rcObj->mAttribs['rc_cur_id'] ) {
 849                                 $curId = $rcObj->mAttribs['rc_cur_id'];
 850                         }
 851                         if( !$currentRevision && $rcObj->mAttribs['rc_this_oldid'] ) {
 852                                 $currentRevision = $rcObj->mAttribs['rc_this_oldid'];
 853                         }
 854
 855                         $bot = $rcObj->mAttribs['rc_bot'];
 856                         $userlinks[$u]++;
 857                 }
 858
 859                 # Sort the list and convert to text
 860                 krsort( $userlinks );
 861                 asort( $userlinks );
 862                 $users = array();
 863                 foreach( $userlinks as $userlink => $count) {
 864                         $text = $userlink;
 865                         $text .= $wgContLang->getDirMark();
 866                         if( $count > 1 ) {
 867                                 $text .= ' (' . $wgLang->formatNum( $count ) . '×)';
 868                         }
 869                         array_push( $users, $text );
 870                 }
 871
 872                 $users = ' <span class="changedby">[' .
 873                         implode( $this->message['semicolon-separator'], $users ) . ']</span>';
 874
 875                 # Title for <a> tags
 876                 $expandTitle = htmlspecialchars( wfMsg( 'rc-enhanced-expand' ) );
 877                 $closeTitle = htmlspecialchars( wfMsg( 'rc-enhanced-hide' ) );
 878
 879                 $tl = "<span class='mw-collapsible-toggle'>"
 880                         . "<span class='mw-rc-openarrow'>"
 881                         . "<a href='#' title='$expandTitle'>{$this->sideArrow()}</a>"
 882                         . "</span><span class='mw-rc-closearrow'>"
 883                         . "<a href='#' title='$closeTitle'>{$this->downArrow()}</a>"
 884                         . "</span></span>";
 885                 $r .= "<td>$tl</td>";
 886
 887                 # Main line
 888                 $r .= '<td class="mw-enhanced-rc">' . $this->recentChangesFlags( array(
 889                         'newpage' => $isnew,
 890                         'minor' => false,
 891                         'unpatrolled' => $unpatrolled,
 892                         'bot' => $bot ,
 893                 ) );
 894
 895                 # Timestamp
 896                 $r .= '&#160;'.$block[0]->timestamp.'&#160;</td><td>';
 897
 898                 # Article link
 899                 if( $namehidden ) {
 900                         $r .= ' <span class="history-deleted">' . wfMsgHtml( 'rev-deleted-event' ) . '</span>';
 901                 } else if( $allLogs ) {
 902                         $r .= $this->maybeWatchedLink( $block[0]->link, $block[0]->watched );
 903                 } else {
 904                         $this->insertArticleLink( $r, $block[0], $block[0]->unpatrolled, $block[0]->watched );
 905                 }
 906
 907                 $r .= $wgContLang->getDirMark();
 908
 909                 $queryParams['curid'] = $curId;
 910                 # Changes message
 911                 $n = count($block);
 912                 static $nchanges = array();
 913                 if ( !isset( $nchanges[$n] ) ) {
 914                         $nchanges[$n] = wfMsgExt( 'nchanges', array( 'parsemag', 'escape' ), $wgLang->formatNum( $n ) );
 915                 }
 916                 # Total change link
 917                 $r .= ' ';
 918                 if( !$allLogs ) {
 919                         $r .= '(';
 920                         if( !ChangesList::userCan( $rcObj, Revision::DELETED_TEXT ) ) {
 921                                 $r .= $nchanges[$n];
 922                         } else if( $isnew ) {
 923                                 $r .= $nchanges[$n];
 924                         } else {
 925                                 $params = $queryParams;
 926                                 $params['diff'] = $currentRevision;
 927                                 $params['oldid'] = $oldid;
 928
 929                                 $r .= $this->skin->link(
 930                                         $block[0]->getTitle(),
 931                                         $nchanges[$n],
 932                                         array(),
 933                                         $params,
 934                                         array( 'known', 'noclasses' )
 935                                 );
 936                         }
 937                 }
 938
 939                 # History
 940                 if( $allLogs ) {
 941                         // don't show history link for logs
 942                 } else if( $namehidden || !$block[0]->getTitle()->exists() ) {
 943                         $r .= $this->message['pipe-separator'] . $this->message['hist'] . ')';
 944                 } else {
 945                         $params = $queryParams;
 946                         $params['action'] = 'history';
 947
 948                         $r .= $this->message['pipe-separator'] .
 949                                 $this->skin->link(
 950                                         $block[0]->getTitle(),
 951                                         $this->message['hist'],
 952                                         array(),
 953                                         $params,
 954                                         array( 'known', 'noclasses' )
 955                                 ) . ')';
 956                 }
 957                 $r .= ' . . ';
 958
 959                 # Character difference (does not apply if only log items)
 960                 if( $wgRCShowChangedSize && !$allLogs ) {
 961                         $last = 0;
 962                         $first = count($block) - 1;
 963                         # Some events (like logs) have an "empty" size, so we need to skip those...
 964                         while( $last < $first && $block[$last]->mAttribs['rc_new_len'] === null ) {
 965                                 $last++;
 966                         }
 967                         while( $first > $last && $block[$first]->mAttribs['rc_old_len'] === null ) {
 968                                 $first--;
 969                         }
 970                         # Get net change
 971                         $chardiff = $rcObj->getCharacterDifference( $block[$first]->mAttribs['rc_old_len'],
 972                                 $block[$last]->mAttribs['rc_new_len'] );
 973
 974                         if( $chardiff == '' ) {
 975                                 $r .= ' ';
 976                         } else {
 977                                 $r .= ' ' . $chardiff. ' . . ';
 978                         }
 979                 }
 980
 981                 $r .= $users;
 982                 $r .= $this->numberofWatchingusers($block[0]->numberofWatchingusers);
 983
 984                 # Sub-entries
 985                 foreach( $block as $rcObj ) {
 986                         # Classes to apply -- TODO implement
 987                         $classes = array();
 988                         $type = $rcObj->mAttribs['rc_type'];
 989
 990                         #$r .= '<tr><td valign="top">'.$this->spacerArrow();
 991                         $r .= '<tr><td></td><td class="mw-enhanced-rc">';
 992                         $r .= $this->recentChangesFlags( array(
 993                                 'newpage' => $rcObj->mAttribs['rc_new'],
 994                                 'minor' => $rcObj->mAttribs['rc_minor'],
 995                                 'unpatrolled' => $rcObj->unpatrolled,
 996                                 'bot' => $rcObj->mAttribs['rc_bot'],
 997                         ) );
 998                         $r .= '&#160;</td><td class="mw-enhanced-rc-nested"><span class="mw-enhanced-rc-time">';
 999
1000                         $params = $queryParams;
1001
1002                         if( $rcObj->mAttribs['rc_this_oldid'] != 0 ) {
1003                                 $params['oldid'] = $rcObj->mAttribs['rc_this_oldid'];
1004                         }
1005
1006                         # Log timestamp
1007                         if( $type == RC_LOG ) {
1008                                 $link = $rcObj->timestamp;
1009                         # Revision link
1010                         } else if( !ChangesList::userCan($rcObj,Revision::DELETED_TEXT) ) {
1011                                 $link = '<span class="history-deleted">'.$rcObj->timestamp.'</span> ';
1012                         } else {
1013                                 if ( $rcObj->unpatrolled && $type == RC_NEW) {
1014                                         $params['rcid'] = $rcObj->mAttribs['rc_id'];
1015                                 }
1016
1017                                 $link = $this->skin->link(
1018                                                 $rcObj->getTitle(),
1019                                                 $rcObj->timestamp,
1020                                                 array(),
1021                                                 $params,
1022                                                 array( 'known', 'noclasses' )
1023                                         );
1024                                 if( $this->isDeleted($rcObj,Revision::DELETED_TEXT) )
1025                                         $link = '<span class="history-deleted">'.$link.'</span> ';
1026                         }
1027                         $r .= $link . '</span>';
1028
1029                         if ( !$type == RC_LOG || $type == RC_NEW ) {
1030                                 $r .= ' (';
1031                                 $r .= $rcObj->curlink;
1032                                 $r .= $this->message['pipe-separator'];
1033                                 $r .= $rcObj->lastlink;
1034                                 $r .= ')';
1035                         }
1036                         $r .= ' . . ';
1037
1038                         # Character diff
1039                         if( $wgRCShowChangedSize && $rcObj->getCharacterDifference() ) {
1040                                 $r .= $rcObj->getCharacterDifference() . ' . . ' ;
1041                         }
1042
1043                         # User links
1044                         $r .= $rcObj->userlink;
1045                         $r .= $rcObj->usertalklink;
1046                         // log action
1047                         $this->insertAction( $r, $rcObj );
1048                         // log comment
1049                         $this->insertComment( $r, $rcObj );
1050                         # Rollback
1051                         $this->insertRollback( $r, $rcObj );
1052                         # Tags
1053                         $this->insertTags( $r, $rcObj, $classes );
1054
1055                         $r .= "</td></tr>\n";
1056                 }
1057                 $r .= "</table>\n";
1058
1059                 $this->rcCacheIndex++;
1060
1061                 wfProfileOut( __METHOD__ );
1062
1063                 return $r;
1064         }
1065
1066         /**
1067          * Generate HTML for an arrow or placeholder graphic
1068          * @param $dir String: one of '', 'd', 'l', 'r'
1069          * @param $alt String: text
1070          * @param $title String: text
1071          * @return String: HTML <img> tag
1072          */
1073         protected function arrow( $dir, $alt='', $title='' ) {
1074                 global $wgStylePath;
1075                 $encUrl = htmlspecialchars( $wgStylePath . '/common/images/Arr_' . $dir . '.png' );
1076                 $encAlt = htmlspecialchars( $alt );
1077                 $encTitle = htmlspecialchars( $title );
1078                 return "<img src=\"$encUrl\" width=\"12\" height=\"12\" alt=\"$encAlt\" title=\"$encTitle\" />";
1079         }
1080
1081         /**
1082          * Generate HTML for a right- or left-facing arrow,
1083          * depending on language direction.
1084          * @return String: HTML <img> tag
1085          */
1086         protected function sideArrow() {
1087                 global $wgContLang;
1088                 $dir = $wgContLang->isRTL() ? 'l' : 'r';
1089                 return $this->arrow( $dir, '+', wfMsg( 'rc-enhanced-expand' ) );
1090         }
1091
1092         /**
1093          * Generate HTML for a down-facing arrow
1094          * depending on language direction.
1095          * @return String: HTML <img> tag
1096          */
1097         protected function downArrow() {
1098                 return $this->arrow( 'd', '-', wfMsg( 'rc-enhanced-hide' ) );
1099         }
1100
1101         /**
1102          * Generate HTML for a spacer image
1103          * @return String: HTML <img> tag
1104          */
1105         protected function spacerArrow() {
1106                 return $this->arrow( '', codepointToUtf8( 0xa0 ) ); // non-breaking space
1107         }
1108
1109         /**
1110          * Enhanced RC ungrouped line.
1111          *
1112          * @param $rcObj RecentChange
1113          * @return String: a HTML formated line (generated using $r)
1114          */
1115         protected function recentChangesBlockLine( $rcObj ) {
1116                 global $wgRCShowChangedSize;
1117
1118                 wfProfileIn( __METHOD__ );
1119                 $query['curid'] = $rcObj->mAttribs['rc_cur_id'];
1120
1121                 $type = $rcObj->mAttribs['rc_type'];
1122                 $logType = $rcObj->mAttribs['rc_log_type'];
1123                 if( $logType ) {
1124                         # Log entry
1125                         $classes = 'mw-enhanced-rc ' . Sanitizer::escapeClass( 'mw-changeslist-log-' . $logType . '-' . $rcObj->mAttribs['rc_title'] );
1126                 } else {
1127                         $classes = 'mw-enhanced-rc ' . Sanitizer::escapeClass( 'mw-changeslist-ns' . $rcObj->mAttribs['rc_namespace'] . '-' . $rcObj->mAttribs['rc_title'] );
1128                 }
1129                 $r = Html::openElement( 'table', array( 'class' => $classes ) ) .
1130                         Html::openElement( 'tr' );
1131
1132                 $r .= '<td class="mw-enhanced-rc">' . $this->spacerArrow();
1133                 # Flag and Timestamp
1134                 if( $type == RC_MOVE || $type == RC_MOVE_OVER_REDIRECT ) {
1135                         $r .= '&#160;&#160;&#160;&#160;'; // 4 flags -> 4 spaces
1136                 } else {
1137                         $r .= $this->recentChangesFlags( array(
1138                                 'newpage' => $type == RC_NEW,
1139                                 'mino' => $rcObj->mAttribs['rc_minor'],
1140                                 'unpatrolled' => $rcObj->unpatrolled,
1141                                 'bot' => $rcObj->mAttribs['rc_bot'],
1142                         ) );
1143                 }
1144                 $r .= '&#160;'.$rcObj->timestamp.'&#160;</td><td>';
1145                 # Article or log link
1146                 if( $logType ) {
1147                         $logtitle = Title::newFromText( "Log/$logType", NS_SPECIAL );
1148                         $logname = LogPage::logName( $logType );
1149                         $r .= '(' . $this->skin->link(
1150                                 $logtitle,
1151                                 $logname,
1152                                 array(),
1153                                 array(),
1154                                 array( 'known', 'noclasses' )
1155                         ) . ')';
1156                 } else {
1157                         $this->insertArticleLink( $r, $rcObj, $rcObj->unpatrolled, $rcObj->watched );
1158                 }
1159                 # Diff and hist links
1160                 if ( $type != RC_LOG ) {
1161                         $r .= ' ('. $rcObj->difflink . $this->message['pipe-separator'];
1162                         $query['action'] = 'history';
1163                         $r .= $this->skin->link(
1164                                 $rcObj->getTitle(),
1165                                 $this->message['hist'],
1166                                 array(),
1167                                 $query,
1168                                 array( 'known', 'noclasses' )
1169                         ) . ')';
1170                 }
1171                 $r .= ' . . ';
1172                 # Character diff
1173                 if( $wgRCShowChangedSize && ($cd = $rcObj->getCharacterDifference()) ) {
1174                         $r .= "$cd . . ";
1175                 }
1176                 # User/talk
1177                 $r .= ' '.$rcObj->userlink . $rcObj->usertalklink;
1178                 # Log action (if any)
1179                 if( $logType ) {
1180                         if( $this->isDeleted($rcObj,LogPage::DELETED_ACTION) ) {
1181                                 $r .= ' <span class="history-deleted">' . wfMsgHtml('rev-deleted-event') . '</span>';
1182                         } else {
1183                                 $r .= ' ' . LogPage::actionText( $logType, $rcObj->mAttribs['rc_log_action'], $rcObj->getTitle(),
1184                                         $this->skin, LogPage::extractParams( $rcObj->mAttribs['rc_params'] ), true, true );
1185                         }
1186                 }
1187                 $this->insertComment( $r, $rcObj );
1188                 $this->insertRollback( $r, $rcObj );
1189                 # Tags
1190                 $classes = explode( ' ', $classes );
1191                 $this->insertTags( $r, $rcObj, $classes );
1192                 # Show how many people are watching this if enabled
1193                 $r .= $this->numberofWatchingusers($rcObj->numberofWatchingusers);
1194
1195                 $r .= "</td></tr></table>\n";
1196
1197                 wfProfileOut( __METHOD__ );
1198
1199                 return $r;
1200         }
1201
1202         /**
1203          * If enhanced RC is in use, this function takes the previously cached
1204          * RC lines, arranges them, and outputs the HTML
1205          */
1206         protected function recentChangesBlock() {
1207                 if( count ( $this->rc_cache ) == 0 ) {
1208                         return '';
1209                 }
1210
1211                 wfProfileIn( __METHOD__ );
1212
1213                 $blockOut = '';
1214                 foreach( $this->rc_cache as $block ) {
1215                         if( count( $block ) < 2 ) {
1216                                 $blockOut .= $this->recentChangesBlockLine( array_shift( $block ) );
1217                         } else {
1218                                 $blockOut .= $this->recentChangesBlockGroup( $block );
1219                         }
1220                 }
1221
1222                 wfProfileOut( __METHOD__ );
1223
1224                 return '<div>'.$blockOut.'</div>';
1225         }
1226
1227         /**
1228          * Returns text for the end of RC
1229          * If enhanced RC is in use, returns pretty much all the text
1230          */
1231         public function endRecentChangesList() {
1232                 return $this->recentChangesBlock() . parent::endRecentChangesList();
1233         }
1234
1235 }