includes/ChangesList.php

   1 <?php
   2 /**
   3  * Classes to show lists of changes.
   4  *
   5  * These can be:
   6  * - watchlist
   7  * - related changes
   8  * - recent changes
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License along
  21  * with this program; if not, write to the Free Software Foundation, Inc.,
  22  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  23  * http://www.gnu.org/copyleft/gpl.html
  24  *
  25  * @file
  26  */
  27
  28 /**
  29  * @todo document
  30  */
  31 class RCCacheEntry extends RecentChange {
  32         var $secureName, $link;
  33         var $curlink , $difflink, $lastlink, $usertalklink, $versionlink;
  34         var $userlink, $timestamp, $watched;
  35
  36         /**
  37          * @param $rc RecentChange
  38          * @return RCCacheEntry
  39          */
  40         static function newFromParent( $rc ) {
  41                 $rc2 = new RCCacheEntry;
  42                 $rc2->mAttribs = $rc->mAttribs;
  43                 $rc2->mExtra = $rc->mExtra;
  44                 return $rc2;
  45         }
  46 }
  47
  48 /**
  49  * Base class for all changes lists
  50  */
  51 class ChangesList extends ContextSource {
  52
  53         /**
  54          * @var Skin
  55          */
  56         public $skin;
  57
  58         protected $watchlist = false;
  59
  60         protected $message;
  61
  62         /**
  63          * Changeslist contructor
  64          *
  65          * @param $obj Skin or IContextSource
  66          */
  67         public function __construct( $obj ) {
  68                 if ( $obj instanceof IContextSource ) {
  69                         $this->setContext( $obj );
  70                         $this->skin = $obj->getSkin();
  71                 } else {
  72                         $this->setContext( $obj->getContext() );
  73                         $this->skin = $obj;
  74                 }
  75                 $this->preCacheMessages();
  76         }
  77
  78         /**
  79          * Fetch an appropriate changes list class for the main context
  80          * This first argument used to be an User object.
  81          *
  82          * @deprecated in 1.18; use newFromContext() instead
  83          * @param $unused string|User Unused
  84          * @return ChangesList|EnhancedChangesList|OldChangesList derivative
  85          */
  86         public static function newFromUser( $unused ) {
  87                 wfDeprecated( __METHOD__, '1.18' );
  88                 return self::newFromContext( RequestContext::getMain() );
  89         }
  90
  91         /**
  92          * Fetch an appropriate changes list class for the specified context
  93          * Some users might want to use an enhanced list format, for instance
  94          *
  95          * @param $context IContextSource to use
  96          * @return ChangesList|EnhancedChangesList|OldChangesList derivative
  97          */
  98         public static function newFromContext( IContextSource $context ) {
  99                 $user = $context->getUser();
 100                 $sk = $context->getSkin();
 101                 $list = null;
 102                 if( wfRunHooks( 'FetchChangesList', array( $user, &$sk, &$list ) ) ) {
 103                         $new = $context->getRequest()->getBool( 'enhanced', $user->getOption( 'usenewrc' ) );
 104                         return $new ? new EnhancedChangesList( $context ) : new OldChangesList( $context );
 105                 } else {
 106                         return $list;
 107                 }
 108         }
 109
 110         /**
 111          * Sets the list to use a <li class="watchlist-(namespace)-(page)"> tag
 112          * @param $value Boolean
 113          */
 114         public function setWatchlistDivs( $value = true ) {
 115                 $this->watchlist = $value;
 116         }
 117
 118         /**
 119          * As we use the same small set of messages in various methods and that
 120          * they are called often, we call them once and save them in $this->message
 121          */
 122         private function preCacheMessages() {
 123                 if( !isset( $this->message ) ) {
 124                         foreach ( explode( ' ', 'cur diff hist last blocklink history ' .
 125                         'semicolon-separator pipe-separator' ) as $msg ) {
 126                                 $this->message[$msg] = $this->msg( $msg )->escaped();
 127                         }
 128                 }
 129         }
 130
 131         /**
 132          * Returns the appropriate flags for new page, minor change and patrolling
 133          * @param $flags Array Associative array of 'flag' => Bool
 134          * @param $nothing String to use for empty space
 135          * @return String
 136          */
 137         protected function recentChangesFlags( $flags, $nothing = '&#160;' ) {
 138                 $f = '';
 139                 foreach( array( 'newpage', 'minor', 'bot', 'unpatrolled' ) as $flag ){
 140                         $f .= isset( $flags[$flag] ) && $flags[$flag]
 141                                 ? self::flag( $flag )
 142                                 : $nothing;
 143                 }
 144                 return $f;
 145         }
 146
 147         /**
 148          * Provide the <abbr> element appropriate to a given abbreviated flag,
 149          * namely the flag indicating a new page, a minor edit, a bot edit, or an
 150          * unpatrolled edit.  By default in English it will contain "N", "m", "b",
 151          * "!" respectively, plus it will have an appropriate title and class.
 152          *
 153          * @param $flag String: 'newpage', 'unpatrolled', 'minor', or 'bot'
 154          * @return String: Raw HTML
 155          */
 156         public static function flag( $flag ) {
 157                 static $messages = null;
 158                 if ( is_null( $messages ) ) {
 159                         $messages = array(
 160                                 'newpage' => array( 'newpageletter', 'recentchanges-label-newpage' ),
 161                                 'minoredit' => array( 'minoreditletter', 'recentchanges-label-minor' ),
 162                                 'botedit' => array( 'boteditletter', 'recentchanges-label-bot' ),
 163                                 'unpatrolled' => array( 'unpatrolledletter', 'recentchanges-label-unpatrolled' ),
 164                         );
 165                         foreach( $messages as &$value ) {
 166                                 $value[0] = wfMsgExt( $value[0], 'escapenoentities' );
 167                                 $value[1] = wfMsgExt( $value[1], 'escapenoentities' );
 168                         }
 169                 }
 170
 171                 # Inconsistent naming, bleh
 172                 $map = array(
 173                         'newpage' => 'newpage',
 174                         'minor' => 'minoredit',
 175                         'bot' => 'botedit',
 176                         'unpatrolled' => 'unpatrolled',
 177                         'minoredit' => 'minoredit',
 178                         'botedit' => 'botedit',
 179                 );
 180                 $flag = $map[$flag];
 181
 182                 return "<abbr class='$flag' title='" . $messages[$flag][1] . "'>" . $messages[$flag][0] . '</abbr>';
 183         }
 184
 185         /**
 186          * Returns text for the start of the tabular part of RC
 187          * @return String
 188          */
 189         public function beginRecentChangesList() {
 190                 $this->rc_cache = array();
 191                 $this->rcMoveIndex = 0;
 192                 $this->rcCacheIndex = 0;
 193                 $this->lastdate = '';
 194                 $this->rclistOpen = false;
 195                 return '';
 196         }
 197
 198         /**
 199          * Show formatted char difference
 200          * @param $old Integer: bytes
 201          * @param $new Integer: bytes
 202          * @param $context IContextSource context to use
 203          * @return String
 204          */
 205         public static function showCharacterDifference( $old, $new, IContextSource $context = null ) {
 206                 global $wgRCChangedSizeThreshold, $wgMiserMode;
 207
 208                 if ( !$context ) {
 209                         $context = RequestContext::getMain();
 210                 }
 211
 212                 $szdiff = $new - $old;
 213
 214                 $lang = $context->getLanguage();
 215                 $code = $lang->getCode();
 216                 static $fastCharDiff = array();
 217                 if ( !isset($fastCharDiff[$code]) ) {
 218                         $fastCharDiff[$code] = $wgMiserMode || $context->msg( 'rc-change-size' )->plain() === '$1';
 219                 }
 220
 221                 $formattedSize = $lang->formatNum( $szdiff );
 222
 223                 if ( !$fastCharDiff[$code] ) {
 224                         $formattedSize = $context->msg( 'rc-change-size', $formattedSize )->text();
 225                 }
 226
 227                 if( abs( $szdiff ) > abs( $wgRCChangedSizeThreshold ) ) {
 228                         $tag = 'strong';
 229                 } else {
 230                         $tag = 'span';
 231                 }
 232
 233                 if ( $szdiff === 0 ) {
 234                         $formattedSizeClass = 'mw-plusminus-null';
 235                 }
 236                 if ( $szdiff > 0 ) {
 237                         $formattedSize = '+' . $formattedSize;
 238                         $formattedSizeClass = 'mw-plusminus-pos';
 239                 }
 240                 if ( $szdiff < 0 ) {
 241                         $formattedSizeClass = 'mw-plusminus-neg';
 242                 }
 243
 244                 $formattedTotalSize = $context->msg( 'rc-change-size-new' )->numParams( $new )->text();
 245
 246                 return Html::element( $tag,
 247                         array( 'dir' => 'ltr', 'class' => $formattedSizeClass, 'title' => $formattedTotalSize ),
 248                         $context->msg( 'parentheses', $formattedSize )->plain() ) . $lang->getDirMark();
 249         }
 250
 251         /**
 252          * Format the character difference of one or several changes.
 253          *
 254          * @param $old RecentChange
 255          * @param $new RecentChange last change to use, if not provided, $old will be used
 256          * @return string HTML fragment
 257          */
 258         public function formatCharacterDifference( RecentChange $old, RecentChange $new = null ) {
 259                 $oldlen = $old->mAttribs['rc_old_len'];
 260
 261                 if ( $new ) {
 262                         $newlen = $new->mAttribs['rc_new_len'];
 263                 } else {
 264                         $newlen = $old->mAttribs['rc_new_len'];
 265                 }
 266
 267                 if( $oldlen === null || $newlen === null ) {
 268                         return '';
 269                 }
 270
 271                 return self::showCharacterDifference( $oldlen, $newlen, $this->getContext() );
 272         }
 273
 274         /**
 275          * Returns text for the end of RC
 276          * @return String
 277          */
 278         public function endRecentChangesList() {
 279                 if( $this->rclistOpen ) {
 280                         return "</ul>\n";
 281                 } else {
 282                         return '';
 283                 }
 284         }
 285
 286         public function insertDateHeader( &$s, $rc_timestamp ) {
 287                 # Make date header if necessary
 288                 $date = $this->getLanguage()->userDate( $rc_timestamp, $this->getUser() );
 289                 if( $date != $this->lastdate ) {
 290                         if( $this->lastdate != '' ) {
 291                                 $s .= "</ul>\n";
 292                         }
 293                         $s .= Xml::element( 'h4', null, $date ) . "\n<ul class=\"special\">";
 294                         $this->lastdate = $date;
 295                         $this->rclistOpen = true;
 296                 }
 297         }
 298
 299         public function insertLog( &$s, $title, $logtype ) {
 300                 $page = new LogPage( $logtype );
 301                 $logname = $page->getName()->escaped();
 302                 $s .= $this->msg( 'parentheses' )->rawParams( Linker::linkKnown( $title, $logname ) )->escaped();
 303         }
 304
 305         /**
 306          * @param $s
 307          * @param $rc RecentChange
 308          * @param $unpatrolled
 309          */
 310         public function insertDiffHist( &$s, &$rc, $unpatrolled ) {
 311                 # Diff link
 312                 if( $rc->mAttribs['rc_type'] == RC_NEW || $rc->mAttribs['rc_type'] == RC_LOG ) {
 313                         $diffLink = $this->message['diff'];
 314                 } elseif ( !self::userCan( $rc, Revision::DELETED_TEXT, $this->getUser() ) ) {
 315                         $diffLink = $this->message['diff'];
 316                 } else {
 317                         $query = array(
 318                                 'curid' => $rc->mAttribs['rc_cur_id'],
 319                                 'diff'  => $rc->mAttribs['rc_this_oldid'],
 320                                 'oldid' => $rc->mAttribs['rc_last_oldid']
 321                         );
 322
 323                         if( $unpatrolled ) {
 324                                 $query['rcid'] = $rc->mAttribs['rc_id'];
 325                         };
 326
 327                         $diffLink = Linker::linkKnown(
 328                                 $rc->getTitle(),
 329                                 $this->message['diff'],
 330                                 array( 'tabindex' => $rc->counter ),
 331                                 $query
 332                         );
 333                 }
 334                 $diffhist = $diffLink . $this->message['pipe-separator'];
 335                 # History link
 336                 $diffhist .= Linker::linkKnown(
 337                         $rc->getTitle(),
 338                         $this->message['hist'],
 339                         array(),
 340                         array(
 341                                 'curid' => $rc->mAttribs['rc_cur_id'],
 342                                 'action' => 'history'
 343                         )
 344                 );
 345                 $s .= $this->msg( 'parentheses' )->rawParams( $diffhist )->escaped() . ' . . ';
 346         }
 347
 348         /**
 349          * @param $s
 350          * @param $rc RecentChange
 351          * @param $unpatrolled
 352          * @param $watched
 353          */
 354         public function insertArticleLink( &$s, &$rc, $unpatrolled, $watched ) {
 355                 # If it's a new article, there is no diff link, but if it hasn't been
 356                 # patrolled yet, we need to give users a way to do so
 357                 $params = array();
 358
 359                 if ( $unpatrolled && $rc->mAttribs['rc_type'] == RC_NEW ) {
 360                         $params['rcid'] = $rc->mAttribs['rc_id'];
 361                 }
 362
 363                 $articlelink = Linker::linkKnown(
 364                         $rc->getTitle(),
 365                         null,
 366                         array(),
 367                         $params
 368                 );
 369                 if( $this->isDeleted($rc,Revision::DELETED_TEXT) ) {
 370                         $articlelink = '<span class="history-deleted">' . $articlelink . '</span>';
 371                 }
 372                 # Bolden pages watched by this user
 373                 if( $watched ) {
 374                         $articlelink = "<strong class=\"mw-watched\">{$articlelink}</strong>";
 375                 }
 376                 # RTL/LTR marker
 377                 $articlelink .= $this->getLanguage()->getDirMark();
 378
 379                 wfRunHooks( 'ChangesListInsertArticleLink',
 380                         array(&$this, &$articlelink, &$s, &$rc, $unpatrolled, $watched) );
 381
 382                 $s .= " $articlelink";
 383         }
 384
 385         /**
 386          * @param $s
 387          * @param $rc RecentChange
 388          */
 389         public function insertTimestamp( &$s, $rc ) {
 390                 $s .= $this->message['semicolon-separator'] .
 391                         $this->getLanguage()->userTime( $rc->mAttribs['rc_timestamp'], $this->getUser() ) . ' . . ';
 392         }
 393
 394         /**
 395          * Insert links to user page, user talk page and eventually a blocking link
 396          *
 397          * @param &$s String HTML to update
 398          * @param &$rc RecentChange
 399          */
 400         public function insertUserRelatedLinks( &$s, &$rc ) {
 401                 if( $this->isDeleted( $rc, Revision::DELETED_USER ) ) {
 402                         $s .= ' <span class="history-deleted">' . $this->msg( 'rev-deleted-user' )->escaped() . '</span>';
 403                 } else {
 404                         $s .= $this->getLanguage()->getDirMark() . Linker::userLink( $rc->mAttribs['rc_user'],
 405                                 $rc->mAttribs['rc_user_text'] );
 406                         $s .= Linker::userToolLinks( $rc->mAttribs['rc_user'], $rc->mAttribs['rc_user_text'] );
 407                 }
 408         }
 409
 410         /**
 411          * Insert a formatted action
 412          *
 413          * @param $rc RecentChange
 414          * @return string
 415          */
 416         public function insertLogEntry( $rc ) {
 417                 $formatter = LogFormatter::newFromRow( $rc->mAttribs );
 418                 $formatter->setContext( $this->getContext() );
 419                 $formatter->setShowUserToolLinks( true );
 420                 $mark = $this->getLanguage()->getDirMark();
 421                 return $formatter->getActionText() . " $mark" . $formatter->getComment();
 422         }
 423
 424         /**
 425          * Insert a formatted comment
 426          * @param $rc RecentChange
 427          * @return string
 428          */
 429         public function insertComment( $rc ) {
 430                 if( $rc->mAttribs['rc_type'] != RC_MOVE && $rc->mAttribs['rc_type'] != RC_MOVE_OVER_REDIRECT ) {
 431                         if( $this->isDeleted( $rc, Revision::DELETED_COMMENT ) ) {
 432                                 return ' <span class="history-deleted">' . $this->msg( 'rev-deleted-comment' )->escaped() . '</span>';
 433                         } else {
 434                                 return Linker::commentBlock( $rc->mAttribs['rc_comment'], $rc->getTitle() );
 435                         }
 436                 }
 437         }
 438
 439         /**
 440          * Check whether to enable recent changes patrol features
 441          * @return Boolean
 442          */
 443         public static function usePatrol() {
 444                 global $wgUser;
 445                 return $wgUser->useRCPatrol();
 446         }
 447
 448         /**
 449          * Returns the string which indicates the number of watching users
 450          * @return string
 451          */
 452         protected function numberofWatchingusers( $count ) {
 453                 static $cache = array();
 454                 if( $count > 0 ) {
 455                         if( !isset( $cache[$count] ) ) {
 456                                 $cache[$count] = $this->msg( 'number_of_watching_users_RCview' )->numParams( $count )->escaped();
 457                         }
 458                         return $cache[$count];
 459                 } else {
 460                         return '';
 461                 }
 462         }
 463
 464         /**
 465          * Determine if said field of a revision is hidden
 466          * @param $rc RCCacheEntry
 467          * @param $field Integer: one of DELETED_* bitfield constants
 468          * @return Boolean
 469          */
 470         public static function isDeleted( $rc, $field ) {
 471                 return ( $rc->mAttribs['rc_deleted'] & $field ) == $field;
 472         }
 473
 474         /**
 475          * Determine if the current user is allowed to view a particular
 476          * field of this revision, if it's marked as deleted.
 477          * @param $rc RCCacheEntry
 478          * @param $field Integer
 479          * @param $user User object to check, or null to use $wgUser
 480          * @return Boolean
 481          */
 482         public static function userCan( $rc, $field, User $user = null ) {
 483                 if( $rc->mAttribs['rc_type'] == RC_LOG ) {
 484                         return LogEventsList::userCanBitfield( $rc->mAttribs['rc_deleted'], $field, $user );
 485                 } else {
 486                         return Revision::userCanBitfield( $rc->mAttribs['rc_deleted'], $field, $user );
 487                 }
 488         }
 489
 490         /**
 491          * @param $link string
 492          * @param $watched bool
 493          * @return string
 494          */
 495         protected function maybeWatchedLink( $link, $watched = false ) {
 496                 if( $watched ) {
 497                         return '<strong class="mw-watched">' . $link . '</strong>';
 498                 } else {
 499                         return '<span class="mw-rc-unwatched">' . $link . '</span>';
 500                 }
 501         }
 502
 503         /** Inserts a rollback link
 504          *
 505          * @param $s string
 506          * @param $rc RecentChange
 507          */
 508         public function insertRollback( &$s, &$rc ) {
 509                 if( !$rc->mAttribs['rc_new'] && $rc->mAttribs['rc_this_oldid'] && $rc->mAttribs['rc_cur_id'] ) {
 510                         $page = $rc->getTitle();
 511                         /** Check for rollback and edit permissions, disallow special pages, and only
 512                           * show a link on the top-most revision */
 513                         if ( $this->getUser()->isAllowed('rollback') && $rc->mAttribs['page_latest'] == $rc->mAttribs['rc_this_oldid'] )
 514                         {
 515                                 $rev = new Revision( array(
 516                                         'id'        => $rc->mAttribs['rc_this_oldid'],
 517                                         'user'      => $rc->mAttribs['rc_user'],
 518                                         'user_text' => $rc->mAttribs['rc_user_text'],
 519                                         'deleted'   => $rc->mAttribs['rc_deleted']
 520                                 ) );
 521                                 $rev->setTitle( $page );
 522                                 $s .= ' '.Linker::generateRollback( $rev, $this->getContext() );
 523                         }
 524                 }
 525         }
 526
 527         /**
 528          * @param $s string
 529          * @param $rc RecentChange
 530          * @param $classes
 531          */
 532         public function insertTags( &$s, &$rc, &$classes ) {
 533                 if ( empty($rc->mAttribs['ts_tags']) )
 534                         return;
 535
 536                 list($tagSummary, $newClasses) = ChangeTags::formatSummaryRow( $rc->mAttribs['ts_tags'], 'changeslist' );
 537                 $classes = array_merge( $classes, $newClasses );
 538                 $s .= ' ' . $tagSummary;
 539         }
 540
 541         public function insertExtra( &$s, &$rc, &$classes ) {
 542                 ## Empty, used for subclassers to add anything special.
 543         }
 544
 545         protected function showAsUnpatrolled( RecentChange $rc ) {
 546                 $unpatrolled = false;
 547                 if ( !$rc->mAttribs['rc_patrolled'] ) {
 548                         if ( $this->getUser()->useRCPatrol() ) {
 549                                 $unpatrolled = true;
 550                         } elseif ( $this->getUser()->useNPPatrol() && $rc->mAttribs['rc_new'] ) {
 551                                 $unpatrolled = true;
 552                         }
 553                 }
 554                 return $unpatrolled;
 555         }
 556 }
 557
 558
 559 /**
 560  * Generate a list of changes using the good old system (no javascript)
 561  */
 562 class OldChangesList extends ChangesList {
 563         /**
 564          * Format a line using the old system (aka without any javascript).
 565          *
 566          * @param $rc RecentChange
 567          * @return string
 568          */
 569         public function recentChangesLine( &$rc, $watched = false, $linenumber = null ) {
 570                 global $wgRCShowChangedSize;
 571                 wfProfileIn( __METHOD__ );
 572
 573                 # Should patrol-related stuff be shown?
 574                 $unpatrolled = $this->showAsUnpatrolled( $rc );
 575
 576                 $dateheader = ''; // $s now contains only <li>...</li>, for hooks' convenience.
 577                 $this->insertDateHeader( $dateheader, $rc->mAttribs['rc_timestamp'] );
 578
 579                 $s = '';
 580                 $classes = array();
 581                 // use mw-line-even/mw-line-odd class only if linenumber is given (feature from bug 14468)
 582                 if( $linenumber ) {
 583                         if( $linenumber & 1 ) {
 584                                 $classes[] = 'mw-line-odd';
 585                         }
 586                         else {
 587                                 $classes[] = 'mw-line-even';
 588                         }
 589                 }
 590
 591                 // Moved pages (very very old, not supported anymore)
 592                 if( $rc->mAttribs['rc_type'] == RC_MOVE || $rc->mAttribs['rc_type'] == RC_MOVE_OVER_REDIRECT ) {
 593                 // Log entries
 594                 } elseif( $rc->mAttribs['rc_log_type'] ) {
 595                         $logtitle = SpecialPage::getTitleFor( 'Log', $rc->mAttribs['rc_log_type'] );
 596                         $this->insertLog( $s, $logtitle, $rc->mAttribs['rc_log_type'] );
 597                 // Log entries (old format) or log targets, and special pages
 598                 } elseif( $rc->mAttribs['rc_namespace'] == NS_SPECIAL ) {
 599                         list( $name, $subpage ) = SpecialPageFactory::resolveAlias( $rc->mAttribs['rc_title'] );
 600                         if( $name == 'Log' ) {
 601                                 $this->insertLog( $s, $rc->getTitle(), $subpage );
 602                         }
 603                 // Regular entries
 604                 } else {
 605                         $this->insertDiffHist( $s, $rc, $unpatrolled );
 606                         # M, N, b and ! (minor, new, bot and unpatrolled)
 607                         $s .= $this->recentChangesFlags(
 608                                 array(
 609                                         'newpage' => $rc->mAttribs['rc_new'],
 610                                         'minor' => $rc->mAttribs['rc_minor'],
 611                                         'unpatrolled' => $unpatrolled,
 612                                         'bot' => $rc->mAttribs['rc_bot']
 613                                 ),
 614                                 ''
 615                         );
 616                         $this->insertArticleLink( $s, $rc, $unpatrolled, $watched );
 617                 }
 618                 # Edit/log timestamp
 619                 $this->insertTimestamp( $s, $rc );
 620                 # Bytes added or removed
 621                 if ( $wgRCShowChangedSize ) {
 622                         $cd = $this->formatCharacterDifference( $rc );
 623                         if ( $cd !== '' ) {
 624                                 $s .= "$cd  . . ";
 625                         }
 626                 }
 627
 628                 if ( $rc->mAttribs['rc_type'] == RC_LOG ) {
 629                         $s .= $this->insertLogEntry( $rc );
 630                 } else {
 631                         # User tool links
 632                         $this->insertUserRelatedLinks( $s, $rc );
 633                         # LTR/RTL direction mark
 634                         $s .= $this->getLanguage()->getDirMark();
 635                         $s .= $this->insertComment( $rc );
 636                 }
 637
 638                 # Tags
 639                 $this->insertTags( $s, $rc, $classes );
 640                 # Rollback
 641                 $this->insertRollback( $s, $rc );
 642                 # For subclasses
 643                 $this->insertExtra( $s, $rc, $classes );
 644
 645                 # How many users watch this page
 646                 if( $rc->numberofWatchingusers > 0 ) {
 647                         $s .= ' ' . $this->numberofWatchingusers( $rc->numberofWatchingusers );
 648                 }
 649
 650                 if( $this->watchlist ) {
 651                         $classes[] = Sanitizer::escapeClass( 'watchlist-'.$rc->mAttribs['rc_namespace'].'-'.$rc->mAttribs['rc_title'] );
 652                 }
 653
 654                 wfRunHooks( 'OldChangesListRecentChangesLine', array(&$this, &$s, $rc) );
 655
 656                 wfProfileOut( __METHOD__ );
 657                 return "$dateheader<li class=\"".implode( ' ', $classes )."\">".$s."</li>\n";
 658         }
 659 }
 660
 661
 662 /**
 663  * Generate a list of changes using an Enhanced system (uses javascript).
 664  */
 665 class EnhancedChangesList extends ChangesList {
 666
 667         protected $rc_cache;
 668
 669         /**
 670          * Add the JavaScript file for enhanced changeslist
 671          * @return String
 672          */
 673         public function beginRecentChangesList() {
 674                 $this->rc_cache = array();
 675                 $this->rcMoveIndex = 0;
 676                 $this->rcCacheIndex = 0;
 677                 $this->lastdate = '';
 678                 $this->rclistOpen = false;
 679                 $this->getOutput()->addModuleStyles( 'mediawiki.special.changeslist' );
 680                 return '';
 681         }
 682         /**
 683          * Format a line for enhanced recentchange (aka with javascript and block of lines).
 684          *
 685          * @param $baseRC RecentChange
 686          * @param $watched bool
 687          *
 688          * @return string
 689          */
 690         public function recentChangesLine( &$baseRC, $watched = false ) {
 691                 wfProfileIn( __METHOD__ );
 692
 693                 # Create a specialised object
 694                 $rc = RCCacheEntry::newFromParent( $baseRC );
 695
 696                 $curIdEq = array( 'curid' => $rc->mAttribs['rc_cur_id'] );
 697
 698                 # If it's a new day, add the headline and flush the cache
 699                 $date = $this->getLanguage()->userDate( $rc->mAttribs['rc_timestamp'], $this->getUser() );
 700                 $ret = '';
 701                 if( $date != $this->lastdate ) {
 702                         # Process current cache
 703                         $ret = $this->recentChangesBlock();
 704                         $this->rc_cache = array();
 705                         $ret .= Xml::element( 'h4', null, $date ) . "\n";
 706                         $this->lastdate = $date;
 707                 }
 708
 709                 # Should patrol-related stuff be shown?
 710                 $rc->unpatrolled = $this->showAsUnpatrolled( $rc );
 711
 712                 $showdifflinks = true;
 713                 # Make article link
 714                 $type = $rc->mAttribs['rc_type'];
 715                 $logType = $rc->mAttribs['rc_log_type'];
 716                 // Page moves, very old style, not supported anymore
 717                 if( $type == RC_MOVE || $type == RC_MOVE_OVER_REDIRECT ) {
 718                 // New unpatrolled pages
 719                 } elseif( $rc->unpatrolled && $type == RC_NEW ) {
 720                         $clink = Linker::linkKnown( $rc->getTitle(), null, array(),
 721                                 array( 'rcid' => $rc->mAttribs['rc_id'] ) );
 722                 // Log entries
 723                 } elseif( $type == RC_LOG ) {
 724                         if( $logType ) {
 725                                 $logtitle = SpecialPage::getTitleFor( 'Log', $logType );
 726                                 $logpage = new LogPage( $logType );
 727                                 $logname = $logpage->getName()->escaped();
 728                                 $clink = $this->msg( 'parentheses' )->rawParams( Linker::linkKnown( $logtitle, $logname ) )->escaped();
 729                         } else {
 730                                 $clink = Linker::link( $rc->getTitle() );
 731                         }
 732                         $watched = false;
 733                 // Log entries (old format) and special pages
 734                 } elseif( $rc->mAttribs['rc_namespace'] == NS_SPECIAL ) {
 735                         wfDebug( "Unexpected special page in recentchanges\n" );
 736                         $clink = '';
 737                 // Edits
 738                 } else {
 739                         $clink = Linker::linkKnown( $rc->getTitle() );
 740                 }
 741
 742                 # Don't show unusable diff links
 743                 if ( !ChangesList::userCan( $rc, Revision::DELETED_TEXT, $this->getUser() ) ) {
 744                         $showdifflinks = false;
 745                 }
 746
 747                 $time = $this->getLanguage()->userTime( $rc->mAttribs['rc_timestamp'], $this->getUser() );
 748                 $rc->watched = $watched;
 749                 $rc->link = $clink;
 750                 $rc->timestamp = $time;
 751                 $rc->numberofWatchingusers = $baseRC->numberofWatchingusers;
 752
 753                 # Make "cur" and "diff" links.  Do not use link(), it is too slow if
 754                 # called too many times (50% of CPU time on RecentChanges!).
 755                 $thisOldid = $rc->mAttribs['rc_this_oldid'];
 756                 $lastOldid = $rc->mAttribs['rc_last_oldid'];
 757                 if( $rc->unpatrolled ) {
 758                         $rcIdQuery = array( 'rcid' => $rc->mAttribs['rc_id'] );
 759                 } else {
 760                         $rcIdQuery = array();
 761                 }
 762                 $querycur = $curIdEq + array( 'diff' => '0', 'oldid' => $thisOldid );
 763                 $querydiff = $curIdEq + array( 'diff' => $thisOldid, 'oldid' =>
 764                         $lastOldid ) + $rcIdQuery;
 765
 766                 if( !$showdifflinks ) {
 767                         $curLink = $this->message['cur'];
 768                         $diffLink = $this->message['diff'];
 769                 } elseif( in_array( $type, array( RC_NEW, RC_LOG, RC_MOVE, RC_MOVE_OVER_REDIRECT ) ) ) {
 770                         if ( $type != RC_NEW ) {
 771                                 $curLink = $this->message['cur'];
 772                         } else {
 773                                 $curUrl = htmlspecialchars( $rc->getTitle()->getLinkURL( $querycur ) );
 774                                 $curLink = "<a href=\"$curUrl\" tabindex=\"{$baseRC->counter}\">{$this->message['cur']}</a>";
 775                         }
 776                         $diffLink = $this->message['diff'];
 777                 } else {
 778                         $diffUrl = htmlspecialchars( $rc->getTitle()->getLinkURL( $querydiff ) );
 779                         $curUrl = htmlspecialchars( $rc->getTitle()->getLinkURL( $querycur ) );
 780                         $diffLink = "<a href=\"$diffUrl\" tabindex=\"{$baseRC->counter}\">{$this->message['diff']}</a>";
 781                         $curLink = "<a href=\"$curUrl\" tabindex=\"{$baseRC->counter}\">{$this->message['cur']}</a>";
 782                 }
 783
 784                 # Make "last" link
 785                 if( !$showdifflinks || !$lastOldid ) {
 786                         $lastLink = $this->message['last'];
 787                 } elseif( in_array( $type, array( RC_LOG, RC_MOVE, RC_MOVE_OVER_REDIRECT ) ) ) {
 788                         $lastLink = $this->message['last'];
 789                 } else {
 790                         $lastLink = Linker::linkKnown( $rc->getTitle(), $this->message['last'],
 791                                 array(), $curIdEq + array('diff' => $thisOldid, 'oldid' => $lastOldid) + $rcIdQuery );
 792                 }
 793
 794                 # Make user links
 795                 if( $this->isDeleted( $rc, Revision::DELETED_USER ) ) {
 796                         $rc->userlink = ' <span class="history-deleted">' . $this->msg( 'rev-deleted-user' )->escaped() . '</span>';
 797                 } else {
 798                         $rc->userlink = Linker::userLink( $rc->mAttribs['rc_user'], $rc->mAttribs['rc_user_text'] );
 799                         $rc->usertalklink = Linker::userToolLinks( $rc->mAttribs['rc_user'], $rc->mAttribs['rc_user_text'] );
 800                 }
 801
 802                 $rc->lastlink = $lastLink;
 803                 $rc->curlink  = $curLink;
 804                 $rc->difflink = $diffLink;
 805
 806                 # Put accumulated information into the cache, for later display
 807                 # Page moves go on their own line
 808                 $title = $rc->getTitle();
 809                 $secureName = $title->getPrefixedDBkey();
 810                 if( $type == RC_MOVE || $type == RC_MOVE_OVER_REDIRECT ) {
 811                         # Use an @ character to prevent collision with page names
 812                         $this->rc_cache['@@' . ($this->rcMoveIndex++)] = array($rc);
 813                 } else {
 814                         # Logs are grouped by type
 815                         if( $type == RC_LOG ){
 816                                 $secureName = SpecialPage::getTitleFor( 'Log', $logType )->getPrefixedDBkey();
 817                         }
 818                         if( !isset( $this->rc_cache[$secureName] ) ) {
 819                                 $this->rc_cache[$secureName] = array();
 820                         }
 821
 822                         array_push( $this->rc_cache[$secureName], $rc );
 823                 }
 824
 825                 wfProfileOut( __METHOD__ );
 826
 827                 return $ret;
 828         }
 829
 830         /**
 831          * Enhanced RC group
 832          * @return string
 833          */
 834         protected function recentChangesBlockGroup( $block ) {
 835                 global $wgRCShowChangedSize;
 836
 837                 wfProfileIn( __METHOD__ );
 838
 839                 # Add the namespace and title of the block as part of the class
 840                 if ( $block[0]->mAttribs['rc_log_type'] ) {
 841                         # Log entry
 842                         $classes = 'mw-collapsible mw-collapsed mw-enhanced-rc ' . Sanitizer::escapeClass( 'mw-changeslist-log-'
 843                                         . $block[0]->mAttribs['rc_log_type'] . '-' . $block[0]->mAttribs['rc_title'] );
 844                 } else {
 845                         $classes = 'mw-collapsible mw-collapsed mw-enhanced-rc ' . Sanitizer::escapeClass( 'mw-changeslist-ns'
 846                                         . $block[0]->mAttribs['rc_namespace'] . '-' . $block[0]->mAttribs['rc_title'] );
 847                 }
 848                 $r = Html::openElement( 'table', array( 'class' => $classes ) ) .
 849                         Html::openElement( 'tr' );
 850
 851                 # Collate list of users
 852                 $userlinks = array();
 853                 # Other properties
 854                 $unpatrolled = false;
 855                 $isnew = false;
 856                 $curId = $currentRevision = 0;
 857                 # Some catalyst variables...
 858                 $namehidden = true;
 859                 $allLogs = true;
 860                 foreach( $block as $rcObj ) {
 861                         $oldid = $rcObj->mAttribs['rc_last_oldid'];
 862                         if( $rcObj->mAttribs['rc_new'] ) {
 863                                 $isnew = true;
 864                         }
 865                         // If all log actions to this page were hidden, then don't
 866                         // give the name of the affected page for this block!
 867                         if( !$this->isDeleted( $rcObj, LogPage::DELETED_ACTION ) ) {
 868                                 $namehidden = false;
 869                         }
 870                         $u = $rcObj->userlink;
 871                         if( !isset( $userlinks[$u] ) ) {
 872                                 $userlinks[$u] = 0;
 873                         }
 874                         if( $rcObj->unpatrolled ) {
 875                                 $unpatrolled = true;
 876                         }
 877                         if( $rcObj->mAttribs['rc_type'] != RC_LOG ) {
 878                                 $allLogs = false;
 879                         }
 880                         # Get the latest entry with a page_id and oldid
 881                         # since logs may not have these.
 882                         if( !$curId && $rcObj->mAttribs['rc_cur_id'] ) {
 883                                 $curId = $rcObj->mAttribs['rc_cur_id'];
 884                         }
 885                         if( !$currentRevision && $rcObj->mAttribs['rc_this_oldid'] ) {
 886                                 $currentRevision = $rcObj->mAttribs['rc_this_oldid'];
 887                         }
 888
 889                         $bot = $rcObj->mAttribs['rc_bot'];
 890                         $userlinks[$u]++;
 891                 }
 892
 893                 # Sort the list and convert to text
 894                 krsort( $userlinks );
 895                 asort( $userlinks );
 896                 $users = array();
 897                 foreach( $userlinks as $userlink => $count) {
 898                         $text = $userlink;
 899                         $text .= $this->getLanguage()->getDirMark();
 900                         if( $count > 1 ) {
 901                                 $text .= ' ' . $this->msg( 'parentheses' )->rawParams( $this->getLanguage()->formatNum( $count ) . '×' )->escaped();
 902                         }
 903                         array_push( $users, $text );
 904                 }
 905
 906                 $users = ' <span class="changedby">'
 907                         . $this->msg( 'brackets' )->rawParams(
 908                                 implode( $this->message['semicolon-separator'], $users )
 909                         )->escaped() . '</span>';
 910
 911                 $tl = '<span class="mw-collapsible-toggle mw-enhancedchanges-arrow"></span>';
 912                 $r .= "<td>$tl</td>";
 913
 914                 # Main line
 915                 $r .= '<td class="mw-enhanced-rc">' . $this->recentChangesFlags( array(
 916                         'newpage' => $isnew,
 917                         'minor' => false,
 918                         'unpatrolled' => $unpatrolled,
 919                         'bot' => $bot ,
 920                 ) );
 921
 922                 # Timestamp
 923                 $r .= '&#160;'.$block[0]->timestamp.'&#160;</td><td>';
 924
 925                 # Article link
 926                 if( $namehidden ) {
 927                         $r .= ' <span class="history-deleted">' . $this->msg( 'rev-deleted-event' )->escaped() . '</span>';
 928                 } elseif( $allLogs ) {
 929                         $r .= $this->maybeWatchedLink( $block[0]->link, $block[0]->watched );
 930                 } else {
 931                         $this->insertArticleLink( $r, $block[0], $block[0]->unpatrolled, $block[0]->watched );
 932                 }
 933
 934                 $r .= $this->getLanguage()->getDirMark();
 935
 936                 $queryParams['curid'] = $curId;
 937                 # Changes message
 938                 $n = count($block);
 939                 static $nchanges = array();
 940                 if ( !isset( $nchanges[$n] ) ) {
 941                         $nchanges[$n] = $this->msg( 'nchanges' )->numParams( $n )->escaped();
 942                 }
 943                 # Total change link
 944                 $r .= ' ';
 945                 $logtext = '';
 946                 if( !$allLogs ) {
 947                         if( !ChangesList::userCan( $rcObj, Revision::DELETED_TEXT, $this->getUser() ) ) {
 948                                 $logtext .= $nchanges[$n];
 949                         } elseif( $isnew ) {
 950                                 $logtext .= $nchanges[$n];
 951                         } else {
 952                                 $params = $queryParams;
 953                                 $params['diff'] = $currentRevision;
 954                                 $params['oldid'] = $oldid;
 955
 956                                 $logtext .= Linker::link(
 957                                         $block[0]->getTitle(),
 958                                         $nchanges[$n],
 959                                         array(),
 960                                         $params,
 961                                         array( 'known', 'noclasses' )
 962                                 );
 963                         }
 964                 }
 965
 966                 # History
 967                 if( $allLogs ) {
 968                         // don't show history link for logs
 969                 } elseif( $namehidden || !$block[0]->getTitle()->exists() ) {
 970                         $logtext .= $this->message['pipe-separator'] . $this->message['hist'];
 971                 } else {
 972                         $params = $queryParams;
 973                         $params['action'] = 'history';
 974
 975                         $logtext .= $this->message['pipe-separator'] .
 976                                 Linker::linkKnown(
 977                                         $block[0]->getTitle(),
 978                                         $this->message['hist'],
 979                                         array(),
 980                                         $params
 981                                 );
 982                 }
 983
 984                 if( $logtext !== '' ) {
 985                         $r .= $this->msg( 'parentheses' )->rawParams( $logtext )->escaped();
 986                 }
 987
 988                 $r .= ' . . ';
 989
 990                 # Character difference (does not apply if only log items)
 991                 if( $wgRCShowChangedSize && !$allLogs ) {
 992                         $last = 0;
 993                         $first = count($block) - 1;
 994                         # Some events (like logs) have an "empty" size, so we need to skip those...
 995                         while( $last < $first && $block[$last]->mAttribs['rc_new_len'] === null ) {
 996                                 $last++;
 997                         }
 998                         while( $first > $last && $block[$first]->mAttribs['rc_old_len'] === null ) {
 999                                 $first--;
1000                         }
1001                         # Get net change
1002                         $chardiff = $this->formatCharacterDifference( $block[$first], $block[$last] );
1003
1004                         if( $chardiff == '' ) {
1005                                 $r .= ' ';
1006                         } else {
1007                                 $r .= ' ' . $chardiff. ' . . ';
1008                         }
1009                 }
1010
1011                 $r .= $users;
1012                 $r .= $this->numberofWatchingusers($block[0]->numberofWatchingusers);
1013
1014                 # Sub-entries
1015                 foreach( $block as $rcObj ) {
1016                         # Classes to apply -- TODO implement
1017                         $classes = array();
1018                         $type = $rcObj->mAttribs['rc_type'];
1019
1020                         $r .= '<tr><td></td><td class="mw-enhanced-rc">';
1021                         $r .= $this->recentChangesFlags( array(
1022                                 'newpage' => $rcObj->mAttribs['rc_new'],
1023                                 'minor' => $rcObj->mAttribs['rc_minor'],
1024                                 'unpatrolled' => $rcObj->unpatrolled,
1025                                 'bot' => $rcObj->mAttribs['rc_bot'],
1026                         ) );
1027                         $r .= '&#160;</td><td class="mw-enhanced-rc-nested"><span class="mw-enhanced-rc-time">';
1028
1029                         $params = $queryParams;
1030
1031                         if( $rcObj->mAttribs['rc_this_oldid'] != 0 ) {
1032                                 $params['oldid'] = $rcObj->mAttribs['rc_this_oldid'];
1033                         }
1034
1035                         # Log timestamp
1036                         if( $type == RC_LOG ) {
1037                                 $link = $rcObj->timestamp;
1038                         # Revision link
1039                         } elseif( !ChangesList::userCan( $rcObj, Revision::DELETED_TEXT, $this->getUser() ) ) {
1040                                 $link = '<span class="history-deleted">'.$rcObj->timestamp.'</span> ';
1041                         } else {
1042                                 if ( $rcObj->unpatrolled && $type == RC_NEW) {
1043                                         $params['rcid'] = $rcObj->mAttribs['rc_id'];
1044                                 }
1045
1046                                 $link = Linker::linkKnown(
1047                                                 $rcObj->getTitle(),
1048                                                 $rcObj->timestamp,
1049                                                 array(),
1050                                                 $params
1051                                         );
1052                                 if( $this->isDeleted($rcObj,Revision::DELETED_TEXT) )
1053                                         $link = '<span class="history-deleted">'.$link.'</span> ';
1054                         }
1055                         $r .= $link . '</span>';
1056
1057                         if ( !$type == RC_LOG || $type == RC_NEW ) {
1058                                 $r .= ' ' . $this->msg( 'parentheses' )->rawParams( $rcObj->curlink . $this->message['pipe-separator'] . $rcObj->lastlink )->escaped();
1059                         }
1060                         $r .= ' . . ';
1061
1062                         # Character diff
1063                         if ( $wgRCShowChangedSize ) {
1064                                 $cd = $this->formatCharacterDifference( $rcObj );
1065                                 if ( $cd !== '' ) {
1066                                         $r .= "$cd . . ";
1067                                 }
1068                         }
1069
1070                         if ( $rcObj->mAttribs['rc_type'] == RC_LOG ) {
1071                                 $r .= $this->insertLogEntry( $rcObj );
1072                         } else {
1073                                 # User links
1074                                 $r .= $rcObj->userlink;
1075                                 $r .= $rcObj->usertalklink;
1076                                 $r .= $this->insertComment( $rcObj );
1077                         }
1078
1079                         # Rollback
1080                         $this->insertRollback( $r, $rcObj );
1081                         # Tags
1082                         $this->insertTags( $r, $rcObj, $classes );
1083
1084                         $r .= "</td></tr>\n";
1085                 }
1086                 $r .= "</table>\n";
1087
1088                 $this->rcCacheIndex++;
1089
1090                 wfProfileOut( __METHOD__ );
1091
1092                 return $r;
1093         }
1094
1095         /**
1096          * Generate HTML for an arrow or placeholder graphic
1097          * @param $dir String: one of '', 'd', 'l', 'r'
1098          * @param $alt String: text
1099          * @param $title String: text
1100          * @return String: HTML <img> tag
1101          */
1102         protected function arrow( $dir, $alt='', $title='' ) {
1103                 global $wgStylePath;
1104                 $encUrl = htmlspecialchars( $wgStylePath . '/common/images/Arr_' . $dir . '.png' );
1105                 $encAlt = htmlspecialchars( $alt );
1106                 $encTitle = htmlspecialchars( $title );
1107                 return "<img src=\"$encUrl\" width=\"12\" height=\"12\" alt=\"$encAlt\" title=\"$encTitle\" />";
1108         }
1109
1110         /**
1111          * Generate HTML for a right- or left-facing arrow,
1112          * depending on language direction.
1113          * @return String: HTML <img> tag
1114          */
1115         protected function sideArrow() {
1116                 $dir = $this->getLanguage()->isRTL() ? 'l' : 'r';
1117                 return $this->arrow( $dir, '+', $this->msg( 'rc-enhanced-expand' )->text() );
1118         }
1119
1120         /**
1121          * Generate HTML for a down-facing arrow
1122          * depending on language direction.
1123          * @return String: HTML <img> tag
1124          */
1125         protected function downArrow() {
1126                 return $this->arrow( 'd', '-', $this->msg( 'rc-enhanced-hide' )->text() );
1127         }
1128
1129         /**
1130          * Generate HTML for a spacer image
1131          * @return String: HTML <img> tag
1132          */
1133         protected function spacerArrow() {
1134                 return $this->arrow( '', codepointToUtf8( 0xa0 ) ); // non-breaking space
1135         }
1136
1137         /**
1138          * Enhanced RC ungrouped line.
1139          *
1140          * @param $rcObj RecentChange
1141          * @return String: a HTML formatted line (generated using $r)
1142          */
1143         protected function recentChangesBlockLine( $rcObj ) {
1144                 global $wgRCShowChangedSize;
1145
1146                 wfProfileIn( __METHOD__ );
1147                 $query['curid'] = $rcObj->mAttribs['rc_cur_id'];
1148
1149                 $type = $rcObj->mAttribs['rc_type'];
1150                 $logType = $rcObj->mAttribs['rc_log_type'];
1151                 if( $logType ) {
1152                         # Log entry
1153                         $classes = 'mw-enhanced-rc ' . Sanitizer::escapeClass( 'mw-changeslist-log-'
1154                                         . $logType . '-' . $rcObj->mAttribs['rc_title'] );
1155                 } else {
1156                         $classes = 'mw-enhanced-rc ' . Sanitizer::escapeClass( 'mw-changeslist-ns' .
1157                                         $rcObj->mAttribs['rc_namespace'] . '-' . $rcObj->mAttribs['rc_title'] );
1158                 }
1159                 $r = Html::openElement( 'table', array( 'class' => $classes ) ) .
1160                         Html::openElement( 'tr' );
1161
1162                 $r .= '<td class="mw-enhanced-rc"><span class="mw-enhancedchanges-arrow mw-enhancedchanges-arrow-space"></span>';
1163                 # Flag and Timestamp
1164                 if( $type == RC_MOVE || $type == RC_MOVE_OVER_REDIRECT ) {
1165                         $r .= '&#160;&#160;&#160;&#160;'; // 4 flags -> 4 spaces
1166                 } else {
1167                         $r .= $this->recentChangesFlags( array(
1168                                 'newpage' => $type == RC_NEW,
1169                                 'minor' => $rcObj->mAttribs['rc_minor'],
1170                                 'unpatrolled' => $rcObj->unpatrolled,
1171                                 'bot' => $rcObj->mAttribs['rc_bot'],
1172                         ) );
1173                 }
1174                 $r .= '&#160;'.$rcObj->timestamp.'&#160;</td><td>';
1175                 # Article or log link
1176                 if( $logType ) {
1177                         $logtitle = SpecialPage::getTitleFor( 'Log', $logType );
1178                         $logname = LogPage::logName( $logType );
1179                         $r .= $this->msg( 'parentheses' )->rawParams( Linker::linkKnown( $logtitle, htmlspecialchars( $logname ) ) )->escaped();
1180                 } else {
1181                         $this->insertArticleLink( $r, $rcObj, $rcObj->unpatrolled, $rcObj->watched );
1182                 }
1183                 # Diff and hist links
1184                 if ( $type != RC_LOG ) {
1185                         $query['action'] = 'history';
1186                         $r .= ' ' . $this->msg( 'parentheses' )->rawParams( $rcObj->difflink . $this->message['pipe-separator'] . Linker::linkKnown(
1187                                 $rcObj->getTitle(),
1188                                 $this->message['hist'],
1189                                 array(),
1190                                 $query
1191                         ) )->escaped();
1192                 }
1193                 $r .= ' . . ';
1194                 # Character diff
1195                 if ( $wgRCShowChangedSize ) {
1196                         $cd = $this->formatCharacterDifference( $rcObj );
1197                         if ( $cd !== '' ) {
1198                                 $r .= "$cd . . ";
1199                         }
1200                 }
1201
1202                 if ( $type == RC_LOG ) {
1203                         $r .= $this->insertLogEntry( $rcObj );
1204                 } else {
1205                         $r .= ' '.$rcObj->userlink . $rcObj->usertalklink;
1206                         $r .= $this->insertComment( $rcObj );
1207                         $this->insertRollback( $r, $rcObj );
1208                 }
1209
1210                 # Tags
1211                 $classes = explode( ' ', $classes );
1212                 $this->insertTags( $r, $rcObj, $classes );
1213                 # Show how many people are watching this if enabled
1214                 $r .= $this->numberofWatchingusers($rcObj->numberofWatchingusers);
1215
1216                 $r .= "</td></tr></table>\n";
1217
1218                 wfProfileOut( __METHOD__ );
1219
1220                 return $r;
1221         }
1222
1223         /**
1224          * If enhanced RC is in use, this function takes the previously cached
1225          * RC lines, arranges them, and outputs the HTML
1226          *
1227          * @return string
1228          */
1229         protected function recentChangesBlock() {
1230                 if( count ( $this->rc_cache ) == 0 ) {
1231                         return '';
1232                 }
1233
1234                 wfProfileIn( __METHOD__ );
1235
1236                 $blockOut = '';
1237                 foreach( $this->rc_cache as $block ) {
1238                         if( count( $block ) < 2 ) {
1239                                 $blockOut .= $this->recentChangesBlockLine( array_shift( $block ) );
1240                         } else {
1241                                 $blockOut .= $this->recentChangesBlockGroup( $block );
1242                         }
1243                 }
1244
1245                 wfProfileOut( __METHOD__ );
1246
1247                 return '<div>'.$blockOut.'</div>';
1248         }
1249
1250         /**
1251          * Returns text for the end of RC
1252          * If enhanced RC is in use, returns pretty much all the text
1253          * @return string
1254          */
1255         public function endRecentChangesList() {
1256                 return $this->recentChangesBlock() . parent::endRecentChangesList();
1257         }
1258
1259 }