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                 $this->getOutput()->addModuleStyles( 'mediawiki.special.changeslist' );
 196                 return '';
 197         }
 198
 199         /**
 200          * Show formatted char difference
 201          * @param $old Integer: bytes
 202          * @param $new Integer: bytes
 203          * @param $context IContextSource context to use
 204          * @return String
 205          */
 206         public static function showCharacterDifference( $old, $new, IContextSource $context = null ) {
 207                 global $wgRCChangedSizeThreshold, $wgMiserMode;
 208
 209                 if ( !$context ) {
 210                         $context = RequestContext::getMain();
 211                 }
 212
 213                 $szdiff = $new - $old;
 214
 215                 $lang = $context->getLanguage();
 216                 $code = $lang->getCode();
 217                 static $fastCharDiff = array();
 218                 if ( !isset($fastCharDiff[$code]) ) {
 219                         $fastCharDiff[$code] = $wgMiserMode || $context->msg( 'rc-change-size' )->plain() === '$1';
 220                 }
 221
 222                 $formattedSize = $lang->formatNum( $szdiff );
 223
 224                 if ( !$fastCharDiff[$code] ) {
 225                         $formattedSize = $context->msg( 'rc-change-size', $formattedSize )->text();
 226                 }
 227
 228                 if( abs( $szdiff ) > abs( $wgRCChangedSizeThreshold ) ) {
 229                         $tag = 'strong';
 230                 } else {
 231                         $tag = 'span';
 232                 }
 233
 234                 if ( $szdiff === 0 ) {
 235                         $formattedSizeClass = 'mw-plusminus-null';
 236                 }
 237                 if ( $szdiff > 0 ) {
 238                         $formattedSize = '+' . $formattedSize;
 239                         $formattedSizeClass = 'mw-plusminus-pos';
 240                 }
 241                 if ( $szdiff < 0 ) {
 242                         $formattedSizeClass = 'mw-plusminus-neg';
 243                 }
 244
 245                 $formattedTotalSize = $context->msg( 'rc-change-size-new' )->numParams( $new )->text();
 246
 247                 return Html::element( $tag,
 248                         array( 'dir' => 'ltr', 'class' => $formattedSizeClass, 'title' => $formattedTotalSize ),
 249                         $context->msg( 'parentheses', $formattedSize )->plain() ) . $lang->getDirMark();
 250         }
 251
 252         /**
 253          * Format the character difference of one or several changes.
 254          *
 255          * @param $old RecentChange
 256          * @param $new RecentChange last change to use, if not provided, $old will be used
 257          * @return string HTML fragment
 258          */
 259         public function formatCharacterDifference( RecentChange $old, RecentChange $new = null ) {
 260                 $oldlen = $old->mAttribs['rc_old_len'];
 261
 262                 if ( $new ) {
 263                         $newlen = $new->mAttribs['rc_new_len'];
 264                 } else {
 265                         $newlen = $old->mAttribs['rc_new_len'];
 266                 }
 267
 268                 if( $oldlen === null || $newlen === null ) {
 269                         return '';
 270                 }
 271
 272                 return self::showCharacterDifference( $oldlen, $newlen, $this->getContext() );
 273         }
 274
 275         /**
 276          * Returns text for the end of RC
 277          * @return String
 278          */
 279         public function endRecentChangesList() {
 280                 if( $this->rclistOpen ) {
 281                         return "</ul>\n";
 282                 } else {
 283                         return '';
 284                 }
 285         }
 286
 287         public function insertDateHeader( &$s, $rc_timestamp ) {
 288                 # Make date header if necessary
 289                 $date = $this->getLanguage()->userDate( $rc_timestamp, $this->getUser() );
 290                 if( $date != $this->lastdate ) {
 291                         if( $this->lastdate != '' ) {
 292                                 $s .= "</ul>\n";
 293                         }
 294                         $s .= Xml::element( 'h4', null, $date ) . "\n<ul class=\"special\">";
 295                         $this->lastdate = $date;
 296                         $this->rclistOpen = true;
 297                 }
 298         }
 299
 300         public function insertLog( &$s, $title, $logtype ) {
 301                 $page = new LogPage( $logtype );
 302                 $logname = $page->getName()->escaped();
 303                 $s .= $this->msg( 'parentheses' )->rawParams( Linker::linkKnown( $title, $logname ) )->escaped();
 304         }
 305
 306         /**
 307          * @param $s
 308          * @param $rc RecentChange
 309          * @param $unpatrolled
 310          */
 311         public function insertDiffHist( &$s, &$rc, $unpatrolled ) {
 312                 # Diff link
 313                 if( $rc->mAttribs['rc_type'] == RC_NEW || $rc->mAttribs['rc_type'] == RC_LOG ) {
 314                         $diffLink = $this->message['diff'];
 315                 } elseif ( !self::userCan( $rc, Revision::DELETED_TEXT, $this->getUser() ) ) {
 316                         $diffLink = $this->message['diff'];
 317                 } else {
 318                         $query = array(
 319                                 'curid' => $rc->mAttribs['rc_cur_id'],
 320                                 'diff'  => $rc->mAttribs['rc_this_oldid'],
 321                                 'oldid' => $rc->mAttribs['rc_last_oldid']
 322                         );
 323
 324                         if( $unpatrolled ) {
 325                                 $query['rcid'] = $rc->mAttribs['rc_id'];
 326                         };
 327
 328                         $diffLink = Linker::linkKnown(
 329                                 $rc->getTitle(),
 330                                 $this->message['diff'],
 331                                 array( 'tabindex' => $rc->counter ),
 332                                 $query
 333                         );
 334                 }
 335                 $diffhist = $diffLink . $this->message['pipe-separator'];
 336                 # History link
 337                 $diffhist .= Linker::linkKnown(
 338                         $rc->getTitle(),
 339                         $this->message['hist'],
 340                         array(),
 341                         array(
 342                                 'curid' => $rc->mAttribs['rc_cur_id'],
 343                                 'action' => 'history'
 344                         )
 345                 );
 346                 $s .= $this->msg( 'parentheses' )->rawParams( $diffhist )->escaped() . ' . . ';
 347         }
 348
 349         /**
 350          * @param $s
 351          * @param $rc RecentChange
 352          * @param $unpatrolled
 353          * @param $watched
 354          */
 355         public function insertArticleLink( &$s, &$rc, $unpatrolled, $watched ) {
 356                 # If it's a new article, there is no diff link, but if it hasn't been
 357                 # patrolled yet, we need to give users a way to do so
 358                 $params = array();
 359
 360                 if ( $unpatrolled && $rc->mAttribs['rc_type'] == RC_NEW ) {
 361                         $params['rcid'] = $rc->mAttribs['rc_id'];
 362                 }
 363
 364                 $articlelink = Linker::linkKnown(
 365                         $rc->getTitle(),
 366                         null,
 367                         array(),
 368                         $params
 369                 );
 370                 if( $this->isDeleted($rc,Revision::DELETED_TEXT) ) {
 371                         $articlelink = '<span class="history-deleted">' . $articlelink . '</span>';
 372                 }
 373                 # To allow for boldening pages watched by this user
 374                 $articlelink = "<span class=\"mw-title\">{$articlelink}</span>";
 375                 # RTL/LTR marker
 376                 $articlelink .= $this->getLanguage()->getDirMark();
 377
 378                 wfRunHooks( 'ChangesListInsertArticleLink',
 379                         array(&$this, &$articlelink, &$s, &$rc, $unpatrolled, $watched) );
 380
 381                 $s .= " $articlelink";
 382         }
 383
 384         /**
 385          * @param $s
 386          * @param $rc RecentChange
 387          */
 388         public function insertTimestamp( &$s, $rc ) {
 389                 $s .= $this->message['semicolon-separator'] .
 390                         $this->getLanguage()->userTime( $rc->mAttribs['rc_timestamp'], $this->getUser() ) . ' . . ';
 391         }
 392
 393         /**
 394          * Insert links to user page, user talk page and eventually a blocking link
 395          *
 396          * @param &$s String HTML to update
 397          * @param &$rc RecentChange
 398          */
 399         public function insertUserRelatedLinks( &$s, &$rc ) {
 400                 if( $this->isDeleted( $rc, Revision::DELETED_USER ) ) {
 401                         $s .= ' <span class="history-deleted">' . $this->msg( 'rev-deleted-user' )->escaped() . '</span>';
 402                 } else {
 403                         $s .= $this->getLanguage()->getDirMark() . Linker::userLink( $rc->mAttribs['rc_user'],
 404                                 $rc->mAttribs['rc_user_text'] );
 405                         $s .= Linker::userToolLinks( $rc->mAttribs['rc_user'], $rc->mAttribs['rc_user_text'] );
 406                 }
 407         }
 408
 409         /**
 410          * Insert a formatted action
 411          *
 412          * @param $rc RecentChange
 413          * @return string
 414          */
 415         public function insertLogEntry( $rc ) {
 416                 $formatter = LogFormatter::newFromRow( $rc->mAttribs );
 417                 $formatter->setContext( $this->getContext() );
 418                 $formatter->setShowUserToolLinks( true );
 419                 $mark = $this->getLanguage()->getDirMark();
 420                 return $formatter->getActionText() . " $mark" . $formatter->getComment();
 421         }
 422
 423         /**
 424          * Insert a formatted comment
 425          * @param $rc RecentChange
 426          * @return string
 427          */
 428         public function insertComment( $rc ) {
 429                 if( $rc->mAttribs['rc_type'] != RC_MOVE && $rc->mAttribs['rc_type'] != RC_MOVE_OVER_REDIRECT ) {
 430                         if( $this->isDeleted( $rc, Revision::DELETED_COMMENT ) ) {
 431                                 return ' <span class="history-deleted">' . $this->msg( 'rev-deleted-comment' )->escaped() . '</span>';
 432                         } else {
 433                                 return Linker::commentBlock( $rc->mAttribs['rc_comment'], $rc->getTitle() );
 434                         }
 435                 }
 436         }
 437
 438         /**
 439          * Check whether to enable recent changes patrol features
 440          * @return Boolean
 441          */
 442         public static function usePatrol() {
 443                 global $wgUser;
 444                 return $wgUser->useRCPatrol();
 445         }
 446
 447         /**
 448          * Returns the string which indicates the number of watching users
 449          * @return string
 450          */
 451         protected function numberofWatchingusers( $count ) {
 452                 static $cache = array();
 453                 if( $count > 0 ) {
 454                         if( !isset( $cache[$count] ) ) {
 455                                 $cache[$count] = $this->msg( 'number_of_watching_users_RCview' )->numParams( $count )->escaped();
 456                         }
 457                         return $cache[$count];
 458                 } else {
 459                         return '';
 460                 }
 461         }
 462
 463         /**
 464          * Determine if said field of a revision is hidden
 465          * @param $rc RCCacheEntry
 466          * @param $field Integer: one of DELETED_* bitfield constants
 467          * @return Boolean
 468          */
 469         public static function isDeleted( $rc, $field ) {
 470                 return ( $rc->mAttribs['rc_deleted'] & $field ) == $field;
 471         }
 472
 473         /**
 474          * Determine if the current user is allowed to view a particular
 475          * field of this revision, if it's marked as deleted.
 476          * @param $rc RCCacheEntry
 477          * @param $field Integer
 478          * @param $user User object to check, or null to use $wgUser
 479          * @return Boolean
 480          */
 481         public static function userCan( $rc, $field, User $user = null ) {
 482                 if( $rc->mAttribs['rc_type'] == RC_LOG ) {
 483                         return LogEventsList::userCanBitfield( $rc->mAttribs['rc_deleted'], $field, $user );
 484                 } else {
 485                         return Revision::userCanBitfield( $rc->mAttribs['rc_deleted'], $field, $user );
 486                 }
 487         }
 488
 489         /**
 490          * @param $link string
 491          * @param $watched bool
 492          * @return string
 493          */
 494         protected function maybeWatchedLink( $link, $watched = false ) {
 495                 if( $watched ) {
 496                         return '<strong class="mw-watched">' . $link . '</strong>';
 497                 } else {
 498                         return '<span class="mw-rc-unwatched">' . $link . '</span>';
 499                 }
 500         }
 501
 502         /** Inserts a rollback link
 503          *
 504          * @param $s string
 505          * @param $rc RecentChange
 506          */
 507         public function insertRollback( &$s, &$rc ) {
 508                 if( !$rc->mAttribs['rc_new'] && $rc->mAttribs['rc_this_oldid'] && $rc->mAttribs['rc_cur_id'] ) {
 509                         $page = $rc->getTitle();
 510                         /** Check for rollback and edit permissions, disallow special pages, and only
 511                           * show a link on the top-most revision */
 512                         if ( $this->getUser()->isAllowed('rollback') && $rc->mAttribs['page_latest'] == $rc->mAttribs['rc_this_oldid'] )
 513                         {
 514                                 $rev = new Revision( array(
 515                                         'id'        => $rc->mAttribs['rc_this_oldid'],
 516                                         'user'      => $rc->mAttribs['rc_user'],
 517                                         'user_text' => $rc->mAttribs['rc_user_text'],
 518                                         'deleted'   => $rc->mAttribs['rc_deleted']
 519                                 ) );
 520                                 $rev->setTitle( $page );
 521                                 $s .= ' '.Linker::generateRollback( $rev, $this->getContext() );
 522                         }
 523                 }
 524         }
 525
 526         /**
 527          * @param $s string
 528          * @param $rc RecentChange
 529          * @param $classes
 530          */
 531         public function insertTags( &$s, &$rc, &$classes ) {
 532                 if ( empty($rc->mAttribs['ts_tags']) )
 533                         return;
 534
 535                 list($tagSummary, $newClasses) = ChangeTags::formatSummaryRow( $rc->mAttribs['ts_tags'], 'changeslist' );
 536                 $classes = array_merge( $classes, $newClasses );
 537                 $s .= ' ' . $tagSummary;
 538         }
 539
 540         public function insertExtra( &$s, &$rc, &$classes ) {
 541                 ## Empty, used for subclassers to add anything special.
 542         }
 543
 544         protected function showAsUnpatrolled( RecentChange $rc ) {
 545                 $unpatrolled = false;
 546                 if ( !$rc->mAttribs['rc_patrolled'] ) {
 547                         if ( $this->getUser()->useRCPatrol() ) {
 548                                 $unpatrolled = true;
 549                         } elseif ( $this->getUser()->useNPPatrol() && $rc->mAttribs['rc_new'] ) {
 550                                 $unpatrolled = true;
 551                         }
 552                 }
 553                 return $unpatrolled;
 554         }
 555 }
 556
 557
 558 /**
 559  * Generate a list of changes using the good old system (no javascript)
 560  */
 561 class OldChangesList extends ChangesList {
 562         /**
 563          * Format a line using the old system (aka without any javascript).
 564          *
 565          * @param $rc RecentChange
 566          * @return string
 567          */
 568         public function recentChangesLine( &$rc, $watched = false, $linenumber = null ) {
 569                 global $wgRCShowChangedSize;
 570                 wfProfileIn( __METHOD__ );
 571
 572                 # Should patrol-related stuff be shown?
 573                 $unpatrolled = $this->showAsUnpatrolled( $rc );
 574
 575                 $dateheader = ''; // $s now contains only <li>...</li>, for hooks' convenience.
 576                 $this->insertDateHeader( $dateheader, $rc->mAttribs['rc_timestamp'] );
 577
 578                 $s = '';
 579                 $classes = array();
 580                 // use mw-line-even/mw-line-odd class only if linenumber is given (feature from bug 14468)
 581                 if( $linenumber ) {
 582                         if( $linenumber & 1 ) {
 583                                 $classes[] = 'mw-line-odd';
 584                         }
 585                         else {
 586                                 $classes[] = 'mw-line-even';
 587                         }
 588                 }
 589
 590                 // Indicate watched status on the line to allow for more
 591                 // comprehensive styling.
 592                 $classes[] = $watched ? 'mw-changeslist-line-watched' : 'mw-changeslist-line-not-watched';
 593
 594                 // Moved pages (very very old, not supported anymore)
 595                 if( $rc->mAttribs['rc_type'] == RC_MOVE || $rc->mAttribs['rc_type'] == RC_MOVE_OVER_REDIRECT ) {
 596                 // Log entries
 597                 } elseif( $rc->mAttribs['rc_log_type'] ) {
 598                         $logtitle = SpecialPage::getTitleFor( 'Log', $rc->mAttribs['rc_log_type'] );
 599                         $this->insertLog( $s, $logtitle, $rc->mAttribs['rc_log_type'] );
 600                 // Log entries (old format) or log targets, and special pages
 601                 } elseif( $rc->mAttribs['rc_namespace'] == NS_SPECIAL ) {
 602                         list( $name, $subpage ) = SpecialPageFactory::resolveAlias( $rc->mAttribs['rc_title'] );
 603                         if( $name == 'Log' ) {
 604                                 $this->insertLog( $s, $rc->getTitle(), $subpage );
 605                         }
 606                 // Regular entries
 607                 } else {
 608                         $this->insertDiffHist( $s, $rc, $unpatrolled );
 609                         # M, N, b and ! (minor, new, bot and unpatrolled)
 610                         $s .= $this->recentChangesFlags(
 611                                 array(
 612                                         'newpage' => $rc->mAttribs['rc_new'],
 613                                         'minor' => $rc->mAttribs['rc_minor'],
 614                                         'unpatrolled' => $unpatrolled,
 615                                         'bot' => $rc->mAttribs['rc_bot']
 616                                 ),
 617                                 ''
 618                         );
 619                         $this->insertArticleLink( $s, $rc, $unpatrolled, $watched );
 620                 }
 621                 # Edit/log timestamp
 622                 $this->insertTimestamp( $s, $rc );
 623                 # Bytes added or removed
 624                 if ( $wgRCShowChangedSize ) {
 625                         $cd = $this->formatCharacterDifference( $rc );
 626                         if ( $cd !== '' ) {
 627                                 $s .= "$cd  . . ";
 628                         }
 629                 }
 630
 631                 if ( $rc->mAttribs['rc_type'] == RC_LOG ) {
 632                         $s .= $this->insertLogEntry( $rc );
 633                 } else {
 634                         # User tool links
 635                         $this->insertUserRelatedLinks( $s, $rc );
 636                         # LTR/RTL direction mark
 637                         $s .= $this->getLanguage()->getDirMark();
 638                         $s .= $this->insertComment( $rc );
 639                 }
 640
 641                 # Tags
 642                 $this->insertTags( $s, $rc, $classes );
 643                 # Rollback
 644                 $this->insertRollback( $s, $rc );
 645                 # For subclasses
 646                 $this->insertExtra( $s, $rc, $classes );
 647
 648                 # How many users watch this page
 649                 if( $rc->numberofWatchingusers > 0 ) {
 650                         $s .= ' ' . $this->numberofWatchingusers( $rc->numberofWatchingusers );
 651                 }
 652
 653                 if( $this->watchlist ) {
 654                         $classes[] = Sanitizer::escapeClass( 'watchlist-'.$rc->mAttribs['rc_namespace'].'-'.$rc->mAttribs['rc_title'] );
 655                 }
 656
 657                 wfRunHooks( 'OldChangesListRecentChangesLine', array(&$this, &$s, $rc) );
 658
 659                 wfProfileOut( __METHOD__ );
 660                 return "$dateheader<li class=\"".implode( ' ', $classes )."\">".$s."</li>\n";
 661         }
 662 }
 663
 664
 665 /**
 666  * Generate a list of changes using an Enhanced system (uses javascript).
 667  */
 668 class EnhancedChangesList extends ChangesList {
 669
 670         protected $rc_cache;
 671
 672         /**
 673          * Add the JavaScript file for enhanced changeslist
 674          * @return String
 675          */
 676         public function beginRecentChangesList() {
 677                 $this->rc_cache = array();
 678                 $this->rcMoveIndex = 0;
 679                 $this->rcCacheIndex = 0;
 680                 $this->lastdate = '';
 681                 $this->rclistOpen = false;
 682                 $this->getOutput()->addModuleStyles( 'mediawiki.special.changeslist' );
 683                 return '';
 684         }
 685         /**
 686          * Format a line for enhanced recentchange (aka with javascript and block of lines).
 687          *
 688          * @param $baseRC RecentChange
 689          * @param $watched bool
 690          *
 691          * @return string
 692          */
 693         public function recentChangesLine( &$baseRC, $watched = false ) {
 694                 wfProfileIn( __METHOD__ );
 695
 696                 # Create a specialised object
 697                 $rc = RCCacheEntry::newFromParent( $baseRC );
 698
 699                 $curIdEq = array( 'curid' => $rc->mAttribs['rc_cur_id'] );
 700
 701                 # If it's a new day, add the headline and flush the cache
 702                 $date = $this->getLanguage()->userDate( $rc->mAttribs['rc_timestamp'], $this->getUser() );
 703                 $ret = '';
 704                 if( $date != $this->lastdate ) {
 705                         # Process current cache
 706                         $ret = $this->recentChangesBlock();
 707                         $this->rc_cache = array();
 708                         $ret .= Xml::element( 'h4', null, $date ) . "\n";
 709                         $this->lastdate = $date;
 710                 }
 711
 712                 # Should patrol-related stuff be shown?
 713                 $rc->unpatrolled = $this->showAsUnpatrolled( $rc );
 714
 715                 $showdifflinks = true;
 716                 # Make article link
 717                 $type = $rc->mAttribs['rc_type'];
 718                 $logType = $rc->mAttribs['rc_log_type'];
 719                 // Page moves, very old style, not supported anymore
 720                 if( $type == RC_MOVE || $type == RC_MOVE_OVER_REDIRECT ) {
 721                 // New unpatrolled pages
 722                 } elseif( $rc->unpatrolled && $type == RC_NEW ) {
 723                         $clink = Linker::linkKnown( $rc->getTitle(), null, array(),
 724                                 array( 'rcid' => $rc->mAttribs['rc_id'] ) );
 725                 // Log entries
 726                 } elseif( $type == RC_LOG ) {
 727                         if( $logType ) {
 728                                 $logtitle = SpecialPage::getTitleFor( 'Log', $logType );
 729                                 $logpage = new LogPage( $logType );
 730                                 $logname = $logpage->getName()->escaped();
 731                                 $clink = $this->msg( 'parentheses' )->rawParams( Linker::linkKnown( $logtitle, $logname ) )->escaped();
 732                         } else {
 733                                 $clink = Linker::link( $rc->getTitle() );
 734                         }
 735                         $watched = false;
 736                 // Log entries (old format) and special pages
 737                 } elseif( $rc->mAttribs['rc_namespace'] == NS_SPECIAL ) {
 738                         wfDebug( "Unexpected special page in recentchanges\n" );
 739                         $clink = '';
 740                 // Edits
 741                 } else {
 742                         $clink = Linker::linkKnown( $rc->getTitle() );
 743                 }
 744
 745                 # Don't show unusable diff links
 746                 if ( !ChangesList::userCan( $rc, Revision::DELETED_TEXT, $this->getUser() ) ) {
 747                         $showdifflinks = false;
 748                 }
 749
 750                 $time = $this->getLanguage()->userTime( $rc->mAttribs['rc_timestamp'], $this->getUser() );
 751                 $rc->watched = $watched;
 752                 $rc->link = $clink;
 753                 $rc->timestamp = $time;
 754                 $rc->numberofWatchingusers = $baseRC->numberofWatchingusers;
 755
 756                 # Make "cur" and "diff" links.  Do not use link(), it is too slow if
 757                 # called too many times (50% of CPU time on RecentChanges!).
 758                 $thisOldid = $rc->mAttribs['rc_this_oldid'];
 759                 $lastOldid = $rc->mAttribs['rc_last_oldid'];
 760                 if( $rc->unpatrolled ) {
 761                         $rcIdQuery = array( 'rcid' => $rc->mAttribs['rc_id'] );
 762                 } else {
 763                         $rcIdQuery = array();
 764                 }
 765                 $querycur = $curIdEq + array( 'diff' => '0', 'oldid' => $thisOldid );
 766                 $querydiff = $curIdEq + array( 'diff' => $thisOldid, 'oldid' =>
 767                         $lastOldid ) + $rcIdQuery;
 768
 769                 if( !$showdifflinks ) {
 770                         $curLink = $this->message['cur'];
 771                         $diffLink = $this->message['diff'];
 772                 } elseif( in_array( $type, array( RC_NEW, RC_LOG, RC_MOVE, RC_MOVE_OVER_REDIRECT ) ) ) {
 773                         if ( $type != RC_NEW ) {
 774                                 $curLink = $this->message['cur'];
 775                         } else {
 776                                 $curUrl = htmlspecialchars( $rc->getTitle()->getLinkURL( $querycur ) );
 777                                 $curLink = "<a href=\"$curUrl\" tabindex=\"{$baseRC->counter}\">{$this->message['cur']}</a>";
 778                         }
 779                         $diffLink = $this->message['diff'];
 780                 } else {
 781                         $diffUrl = htmlspecialchars( $rc->getTitle()->getLinkURL( $querydiff ) );
 782                         $curUrl = htmlspecialchars( $rc->getTitle()->getLinkURL( $querycur ) );
 783                         $diffLink = "<a href=\"$diffUrl\" tabindex=\"{$baseRC->counter}\">{$this->message['diff']}</a>";
 784                         $curLink = "<a href=\"$curUrl\" tabindex=\"{$baseRC->counter}\">{$this->message['cur']}</a>";
 785                 }
 786
 787                 # Make "last" link
 788                 if( !$showdifflinks || !$lastOldid ) {
 789                         $lastLink = $this->message['last'];
 790                 } elseif( in_array( $type, array( RC_LOG, RC_MOVE, RC_MOVE_OVER_REDIRECT ) ) ) {
 791                         $lastLink = $this->message['last'];
 792                 } else {
 793                         $lastLink = Linker::linkKnown( $rc->getTitle(), $this->message['last'],
 794                                 array(), $curIdEq + array('diff' => $thisOldid, 'oldid' => $lastOldid) + $rcIdQuery );
 795                 }
 796
 797                 # Make user links
 798                 if( $this->isDeleted( $rc, Revision::DELETED_USER ) ) {
 799                         $rc->userlink = ' <span class="history-deleted">' . $this->msg( 'rev-deleted-user' )->escaped() . '</span>';
 800                 } else {
 801                         $rc->userlink = Linker::userLink( $rc->mAttribs['rc_user'], $rc->mAttribs['rc_user_text'] );
 802                         $rc->usertalklink = Linker::userToolLinks( $rc->mAttribs['rc_user'], $rc->mAttribs['rc_user_text'] );
 803                 }
 804
 805                 $rc->lastlink = $lastLink;
 806                 $rc->curlink  = $curLink;
 807                 $rc->difflink = $diffLink;
 808
 809                 # Put accumulated information into the cache, for later display
 810                 # Page moves go on their own line
 811                 $title = $rc->getTitle();
 812                 $secureName = $title->getPrefixedDBkey();
 813                 if( $type == RC_MOVE || $type == RC_MOVE_OVER_REDIRECT ) {
 814                         # Use an @ character to prevent collision with page names
 815                         $this->rc_cache['@@' . ($this->rcMoveIndex++)] = array($rc);
 816                 } else {
 817                         # Logs are grouped by type
 818                         if( $type == RC_LOG ){
 819                                 $secureName = SpecialPage::getTitleFor( 'Log', $logType )->getPrefixedDBkey();
 820                         }
 821                         if( !isset( $this->rc_cache[$secureName] ) ) {
 822                                 $this->rc_cache[$secureName] = array();
 823                         }
 824
 825                         array_push( $this->rc_cache[$secureName], $rc );
 826                 }
 827
 828                 wfProfileOut( __METHOD__ );
 829
 830                 return $ret;
 831         }
 832
 833         /**
 834          * Enhanced RC group
 835          * @return string
 836          */
 837         protected function recentChangesBlockGroup( $block ) {
 838                 global $wgRCShowChangedSize;
 839
 840                 wfProfileIn( __METHOD__ );
 841
 842                 # Add the namespace and title of the block as part of the class
 843                 $classes = array( 'mw-collapsible', 'mw-collapsed', 'mw-enhanced-rc' );
 844                 if ( $block[0]->mAttribs['rc_log_type'] ) {
 845                         # Log entry
 846                         $classes[] = Sanitizer::escapeClass( 'mw-changeslist-log-'
 847                                         . $block[0]->mAttribs['rc_log_type'] . '-' . $block[0]->mAttribs['rc_title'] );
 848                 } else {
 849                         $classes[] = Sanitizer::escapeClass( 'mw-changeslist-ns'
 850                                         . $block[0]->mAttribs['rc_namespace'] . '-' . $block[0]->mAttribs['rc_title'] );
 851                 }
 852                 $classes[] = $block[0]->watched ? 'mw-changeslist-line-watched' : 'mw-changeslist-line-not-watched';
 853                 $r = Html::openElement( 'table', array( 'class' => $classes ) ) .
 854                         Html::openElement( 'tr' );
 855
 856                 # Collate list of users
 857                 $userlinks = array();
 858                 # Other properties
 859                 $unpatrolled = false;
 860                 $isnew = false;
 861                 $curId = $currentRevision = 0;
 862                 # Some catalyst variables...
 863                 $namehidden = true;
 864                 $allLogs = true;
 865                 foreach( $block as $rcObj ) {
 866                         $oldid = $rcObj->mAttribs['rc_last_oldid'];
 867                         if( $rcObj->mAttribs['rc_new'] ) {
 868                                 $isnew = true;
 869                         }
 870                         // If all log actions to this page were hidden, then don't
 871                         // give the name of the affected page for this block!
 872                         if( !$this->isDeleted( $rcObj, LogPage::DELETED_ACTION ) ) {
 873                                 $namehidden = false;
 874                         }
 875                         $u = $rcObj->userlink;
 876                         if( !isset( $userlinks[$u] ) ) {
 877                                 $userlinks[$u] = 0;
 878                         }
 879                         if( $rcObj->unpatrolled ) {
 880                                 $unpatrolled = true;
 881                         }
 882                         if( $rcObj->mAttribs['rc_type'] != RC_LOG ) {
 883                                 $allLogs = false;
 884                         }
 885                         # Get the latest entry with a page_id and oldid
 886                         # since logs may not have these.
 887                         if( !$curId && $rcObj->mAttribs['rc_cur_id'] ) {
 888                                 $curId = $rcObj->mAttribs['rc_cur_id'];
 889                         }
 890                         if( !$currentRevision && $rcObj->mAttribs['rc_this_oldid'] ) {
 891                                 $currentRevision = $rcObj->mAttribs['rc_this_oldid'];
 892                         }
 893
 894                         $bot = $rcObj->mAttribs['rc_bot'];
 895                         $userlinks[$u]++;
 896                 }
 897
 898                 # Sort the list and convert to text
 899                 krsort( $userlinks );
 900                 asort( $userlinks );
 901                 $users = array();
 902                 foreach( $userlinks as $userlink => $count) {
 903                         $text = $userlink;
 904                         $text .= $this->getLanguage()->getDirMark();
 905                         if( $count > 1 ) {
 906                                 $text .= ' ' . $this->msg( 'parentheses' )->rawParams( $this->getLanguage()->formatNum( $count ) . '×' )->escaped();
 907                         }
 908                         array_push( $users, $text );
 909                 }
 910
 911                 $users = ' <span class="changedby">'
 912                         . $this->msg( 'brackets' )->rawParams(
 913                                 implode( $this->message['semicolon-separator'], $users )
 914                         )->escaped() . '</span>';
 915
 916                 $tl = '<span class="mw-collapsible-toggle mw-enhancedchanges-arrow"></span>';
 917                 $r .= "<td>$tl</td>";
 918
 919                 # Main line
 920                 $r .= '<td class="mw-enhanced-rc">' . $this->recentChangesFlags( array(
 921                         'newpage' => $isnew,
 922                         'minor' => false,
 923                         'unpatrolled' => $unpatrolled,
 924                         'bot' => $bot ,
 925                 ) );
 926
 927                 # Timestamp
 928                 $r .= '&#160;'.$block[0]->timestamp.'&#160;</td><td>';
 929
 930                 # Article link
 931                 if( $namehidden ) {
 932                         $r .= ' <span class="history-deleted">' . $this->msg( 'rev-deleted-event' )->escaped() . '</span>';
 933                 } elseif( $allLogs ) {
 934                         $r .= $this->maybeWatchedLink( $block[0]->link, $block[0]->watched );
 935                 } else {
 936                         $this->insertArticleLink( $r, $block[0], $block[0]->unpatrolled, $block[0]->watched );
 937                 }
 938
 939                 $r .= $this->getLanguage()->getDirMark();
 940
 941                 $queryParams['curid'] = $curId;
 942                 # Changes message
 943                 $n = count($block);
 944                 static $nchanges = array();
 945                 if ( !isset( $nchanges[$n] ) ) {
 946                         $nchanges[$n] = $this->msg( 'nchanges' )->numParams( $n )->escaped();
 947                 }
 948                 # Total change link
 949                 $r .= ' ';
 950                 $logtext = '';
 951                 if( !$allLogs ) {
 952                         if( !ChangesList::userCan( $rcObj, Revision::DELETED_TEXT, $this->getUser() ) ) {
 953                                 $logtext .= $nchanges[$n];
 954                         } elseif( $isnew ) {
 955                                 $logtext .= $nchanges[$n];
 956                         } else {
 957                                 $params = $queryParams;
 958                                 $params['diff'] = $currentRevision;
 959                                 $params['oldid'] = $oldid;
 960
 961                                 $logtext .= Linker::link(
 962                                         $block[0]->getTitle(),
 963                                         $nchanges[$n],
 964                                         array(),
 965                                         $params,
 966                                         array( 'known', 'noclasses' )
 967                                 );
 968                         }
 969                 }
 970
 971                 # History
 972                 if( $allLogs ) {
 973                         // don't show history link for logs
 974                 } elseif( $namehidden || !$block[0]->getTitle()->exists() ) {
 975                         $logtext .= $this->message['pipe-separator'] . $this->message['hist'];
 976                 } else {
 977                         $params = $queryParams;
 978                         $params['action'] = 'history';
 979
 980                         $logtext .= $this->message['pipe-separator'] .
 981                                 Linker::linkKnown(
 982                                         $block[0]->getTitle(),
 983                                         $this->message['hist'],
 984                                         array(),
 985                                         $params
 986                                 );
 987                 }
 988
 989                 if( $logtext !== '' ) {
 990                         $r .= $this->msg( 'parentheses' )->rawParams( $logtext )->escaped();
 991                 }
 992
 993                 $r .= ' . . ';
 994
 995                 # Character difference (does not apply if only log items)
 996                 if( $wgRCShowChangedSize && !$allLogs ) {
 997                         $last = 0;
 998                         $first = count($block) - 1;
 999                         # Some events (like logs) have an "empty" size, so we need to skip those...
1000                         while( $last < $first && $block[$last]->mAttribs['rc_new_len'] === null ) {
1001                                 $last++;
1002                         }
1003                         while( $first > $last && $block[$first]->mAttribs['rc_old_len'] === null ) {
1004                                 $first--;
1005                         }
1006                         # Get net change
1007                         $chardiff = $this->formatCharacterDifference( $block[$first], $block[$last] );
1008
1009                         if( $chardiff == '' ) {
1010                                 $r .= ' ';
1011                         } else {
1012                                 $r .= ' ' . $chardiff. ' . . ';
1013                         }
1014                 }
1015
1016                 $r .= $users;
1017                 $r .= $this->numberofWatchingusers($block[0]->numberofWatchingusers);
1018
1019                 # Sub-entries
1020                 foreach( $block as $rcObj ) {
1021                         # Classes to apply -- TODO implement
1022                         $classes = array();
1023                         $type = $rcObj->mAttribs['rc_type'];
1024
1025                         $r .= '<tr><td></td><td class="mw-enhanced-rc">';
1026                         $r .= $this->recentChangesFlags( array(
1027                                 'newpage' => $rcObj->mAttribs['rc_new'],
1028                                 'minor' => $rcObj->mAttribs['rc_minor'],
1029                                 'unpatrolled' => $rcObj->unpatrolled,
1030                                 'bot' => $rcObj->mAttribs['rc_bot'],
1031                         ) );
1032                         $r .= '&#160;</td><td class="mw-enhanced-rc-nested"><span class="mw-enhanced-rc-time">';
1033
1034                         $params = $queryParams;
1035
1036                         if( $rcObj->mAttribs['rc_this_oldid'] != 0 ) {
1037                                 $params['oldid'] = $rcObj->mAttribs['rc_this_oldid'];
1038                         }
1039
1040                         # Log timestamp
1041                         if( $type == RC_LOG ) {
1042                                 $link = $rcObj->timestamp;
1043                         # Revision link
1044                         } elseif( !ChangesList::userCan( $rcObj, Revision::DELETED_TEXT, $this->getUser() ) ) {
1045                                 $link = '<span class="history-deleted">'.$rcObj->timestamp.'</span> ';
1046                         } else {
1047                                 if ( $rcObj->unpatrolled && $type == RC_NEW) {
1048                                         $params['rcid'] = $rcObj->mAttribs['rc_id'];
1049                                 }
1050
1051                                 $link = Linker::linkKnown(
1052                                                 $rcObj->getTitle(),
1053                                                 $rcObj->timestamp,
1054                                                 array(),
1055                                                 $params
1056                                         );
1057                                 if( $this->isDeleted($rcObj,Revision::DELETED_TEXT) )
1058                                         $link = '<span class="history-deleted">'.$link.'</span> ';
1059                         }
1060                         $r .= $link . '</span>';
1061
1062                         if ( !$type == RC_LOG || $type == RC_NEW ) {
1063                                 $r .= ' ' . $this->msg( 'parentheses' )->rawParams( $rcObj->curlink . $this->message['pipe-separator'] . $rcObj->lastlink )->escaped();
1064                         }
1065                         $r .= ' . . ';
1066
1067                         # Character diff
1068                         if ( $wgRCShowChangedSize ) {
1069                                 $cd = $this->formatCharacterDifference( $rcObj );
1070                                 if ( $cd !== '' ) {
1071                                         $r .= "$cd . . ";
1072                                 }
1073                         }
1074
1075                         if ( $rcObj->mAttribs['rc_type'] == RC_LOG ) {
1076                                 $r .= $this->insertLogEntry( $rcObj );
1077                         } else {
1078                                 # User links
1079                                 $r .= $rcObj->userlink;
1080                                 $r .= $rcObj->usertalklink;
1081                                 $r .= $this->insertComment( $rcObj );
1082                         }
1083
1084                         # Rollback
1085                         $this->insertRollback( $r, $rcObj );
1086                         # Tags
1087                         $this->insertTags( $r, $rcObj, $classes );
1088
1089                         $r .= "</td></tr>\n";
1090                 }
1091                 $r .= "</table>\n";
1092
1093                 $this->rcCacheIndex++;
1094
1095                 wfProfileOut( __METHOD__ );
1096
1097                 return $r;
1098         }
1099
1100         /**
1101          * Generate HTML for an arrow or placeholder graphic
1102          * @param $dir String: one of '', 'd', 'l', 'r'
1103          * @param $alt String: text
1104          * @param $title String: text
1105          * @return String: HTML <img> tag
1106          */
1107         protected function arrow( $dir, $alt='', $title='' ) {
1108                 global $wgStylePath;
1109                 $encUrl = htmlspecialchars( $wgStylePath . '/common/images/Arr_' . $dir . '.png' );
1110                 $encAlt = htmlspecialchars( $alt );
1111                 $encTitle = htmlspecialchars( $title );
1112                 return "<img src=\"$encUrl\" width=\"12\" height=\"12\" alt=\"$encAlt\" title=\"$encTitle\" />";
1113         }
1114
1115         /**
1116          * Generate HTML for a right- or left-facing arrow,
1117          * depending on language direction.
1118          * @return String: HTML <img> tag
1119          */
1120         protected function sideArrow() {
1121                 $dir = $this->getLanguage()->isRTL() ? 'l' : 'r';
1122                 return $this->arrow( $dir, '+', $this->msg( 'rc-enhanced-expand' )->text() );
1123         }
1124
1125         /**
1126          * Generate HTML for a down-facing arrow
1127          * depending on language direction.
1128          * @return String: HTML <img> tag
1129          */
1130         protected function downArrow() {
1131                 return $this->arrow( 'd', '-', $this->msg( 'rc-enhanced-hide' )->text() );
1132         }
1133
1134         /**
1135          * Generate HTML for a spacer image
1136          * @return String: HTML <img> tag
1137          */
1138         protected function spacerArrow() {
1139                 return $this->arrow( '', codepointToUtf8( 0xa0 ) ); // non-breaking space
1140         }
1141
1142         /**
1143          * Enhanced RC ungrouped line.
1144          *
1145          * @param $rcObj RecentChange
1146          * @return String: a HTML formatted line (generated using $r)
1147          */
1148         protected function recentChangesBlockLine( $rcObj ) {
1149                 global $wgRCShowChangedSize;
1150
1151                 wfProfileIn( __METHOD__ );
1152                 $query['curid'] = $rcObj->mAttribs['rc_cur_id'];
1153
1154                 $type = $rcObj->mAttribs['rc_type'];
1155                 $logType = $rcObj->mAttribs['rc_log_type'];
1156                 $classes = array( 'mw-enhanced-rc' );
1157                 if( $logType ) {
1158                         # Log entry
1159                         $classes[] = Sanitizer::escapeClass( 'mw-changeslist-log-'
1160                                         . $logType . '-' . $rcObj->mAttribs['rc_title'] );
1161                 } else {
1162                         $classes[] = Sanitizer::escapeClass( 'mw-changeslist-ns' .
1163                                         $rcObj->mAttribs['rc_namespace'] . '-' . $rcObj->mAttribs['rc_title'] );
1164                 }
1165                 $classes[] = $rcObj->watched ? 'mw-changeslist-line-watched' : 'mw-changeslist-line-not-watched';
1166                 $r = Html::openElement( 'table', array( 'class' => $classes ) ) .
1167                         Html::openElement( 'tr' );
1168
1169                 $r .= '<td class="mw-enhanced-rc"><span class="mw-enhancedchanges-arrow mw-enhancedchanges-arrow-space"></span>';
1170                 # Flag and Timestamp
1171                 if( $type == RC_MOVE || $type == RC_MOVE_OVER_REDIRECT ) {
1172                         $r .= '&#160;&#160;&#160;&#160;'; // 4 flags -> 4 spaces
1173                 } else {
1174                         $r .= $this->recentChangesFlags( array(
1175                                 'newpage' => $type == RC_NEW,
1176                                 'minor' => $rcObj->mAttribs['rc_minor'],
1177                                 'unpatrolled' => $rcObj->unpatrolled,
1178                                 'bot' => $rcObj->mAttribs['rc_bot'],
1179                         ) );
1180                 }
1181                 $r .= '&#160;'.$rcObj->timestamp.'&#160;</td><td>';
1182                 # Article or log link
1183                 if( $logType ) {
1184                         $logtitle = SpecialPage::getTitleFor( 'Log', $logType );
1185                         $logname = LogPage::logName( $logType );
1186                         $r .= $this->msg( 'parentheses' )->rawParams( Linker::linkKnown( $logtitle, htmlspecialchars( $logname ) ) )->escaped();
1187                 } else {
1188                         $this->insertArticleLink( $r, $rcObj, $rcObj->unpatrolled, $rcObj->watched );
1189                 }
1190                 # Diff and hist links
1191                 if ( $type != RC_LOG ) {
1192                         $query['action'] = 'history';
1193                         $r .= ' ' . $this->msg( 'parentheses' )->rawParams( $rcObj->difflink . $this->message['pipe-separator'] . Linker::linkKnown(
1194                                 $rcObj->getTitle(),
1195                                 $this->message['hist'],
1196                                 array(),
1197                                 $query
1198                         ) )->escaped();
1199                 }
1200                 $r .= ' . . ';
1201                 # Character diff
1202                 if ( $wgRCShowChangedSize ) {
1203                         $cd = $this->formatCharacterDifference( $rcObj );
1204                         if ( $cd !== '' ) {
1205                                 $r .= "$cd . . ";
1206                         }
1207                 }
1208
1209                 if ( $type == RC_LOG ) {
1210                         $r .= $this->insertLogEntry( $rcObj );
1211                 } else {
1212                         $r .= ' '.$rcObj->userlink . $rcObj->usertalklink;
1213                         $r .= $this->insertComment( $rcObj );
1214                         $this->insertRollback( $r, $rcObj );
1215                 }
1216
1217                 # Tags
1218                 $classes = explode( ' ', $classes );
1219                 $this->insertTags( $r, $rcObj, $classes );
1220                 # Show how many people are watching this if enabled
1221                 $r .= $this->numberofWatchingusers($rcObj->numberofWatchingusers);
1222
1223                 $r .= "</td></tr></table>\n";
1224
1225                 wfProfileOut( __METHOD__ );
1226
1227                 return $r;
1228         }
1229
1230         /**
1231          * If enhanced RC is in use, this function takes the previously cached
1232          * RC lines, arranges them, and outputs the HTML
1233          *
1234          * @return string
1235          */
1236         protected function recentChangesBlock() {
1237                 if( count ( $this->rc_cache ) == 0 ) {
1238                         return '';
1239                 }
1240
1241                 wfProfileIn( __METHOD__ );
1242
1243                 $blockOut = '';
1244                 foreach( $this->rc_cache as $block ) {
1245                         if( count( $block ) < 2 ) {
1246                                 $blockOut .= $this->recentChangesBlockLine( array_shift( $block ) );
1247                         } else {
1248                                 $blockOut .= $this->recentChangesBlockGroup( $block );
1249                         }
1250                 }
1251
1252                 wfProfileOut( __METHOD__ );
1253
1254                 return '<div>'.$blockOut.'</div>';
1255         }
1256
1257         /**
1258          * Returns text for the end of RC
1259          * If enhanced RC is in use, returns pretty much all the text
1260          * @return string
1261          */
1262         public function endRecentChangesList() {
1263                 return $this->recentChangesBlock() . parent::endRecentChangesList();
1264         }
1265
1266 }