includes/changes/EnhancedChangesList.php

   1 <?php
   2 /**
   3  * Generates a list of changes using an Enhanced system (uses javascript).
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  */
  22
  23 class EnhancedChangesList extends ChangesList {
  24
  25         /**
  26          * @var RCCacheEntryFactory
  27          */
  28         protected $cacheEntryFactory;
  29
  30         /**
  31          * @var array Array of array of RCCacheEntry
  32          */
  33         protected $rc_cache;
  34
  35         /**
  36          * @param IContextSource|Skin $obj
  37          */
  38         public function __construct( $obj ) {
  39                 if ( $obj instanceof Skin ) {
  40                         // @todo: deprecate constructing with Skin
  41                         $context = $obj->getContext();
  42                 } else {
  43                         if ( ! $obj instanceof IContextSource ) {
  44                                 throw new MWException( 'EnhancedChangesList must be constructed with a '
  45                                         . 'context source or skin.' );
  46                         }
  47
  48                         $context = $obj;
  49                 }
  50
  51                 parent::__construct( $context );
  52
  53                 // message is set by the parent ChangesList class
  54                 $this->cacheEntryFactory = new RCCacheEntryFactory(
  55                         $context,
  56                         $this->message
  57                 );
  58         }
  59
  60         /**
  61          * Add the JavaScript file for enhanced changeslist
  62          * @return string
  63          */
  64         public function beginRecentChangesList() {
  65                 $this->rc_cache = array();
  66                 $this->rcMoveIndex = 0;
  67                 $this->rcCacheIndex = 0;
  68                 $this->lastdate = '';
  69                 $this->rclistOpen = false;
  70                 $this->getOutput()->addModuleStyles( array(
  71                         'mediawiki.special.changeslist',
  72                         'mediawiki.special.changeslist.enhanced',
  73                 ) );
  74                 $this->getOutput()->addModules( array(
  75                         'jquery.makeCollapsible',
  76                         'mediawiki.icon',
  77                 ) );
  78
  79                 return '<div class="mw-changeslist">';
  80         }
  81
  82         /**
  83          * Format a line for enhanced recentchange (aka with javascript and block of lines).
  84          *
  85          * @param RecentChange $baseRC
  86          * @param bool $watched
  87          *
  88          * @return string
  89          */
  90         public function recentChangesLine( &$baseRC, $watched = false ) {
  91                 wfProfileIn( __METHOD__ );
  92
  93                 # If it's a new day, add the headline and flush the cache
  94                 $date = $this->getLanguage()->userDate(
  95                         $baseRC->mAttribs['rc_timestamp'],
  96                         $this->getUser()
  97                 );
  98
  99                 $ret = '';
 100
 101                 if ( $date != $this->lastdate ) {
 102                         # Process current cache
 103                         $ret = $this->recentChangesBlock();
 104                         $this->rc_cache = array();
 105                         $ret .= Xml::element( 'h4', null, $date ) . "\n";
 106                         $this->lastdate = $date;
 107                 }
 108
 109                 $cacheEntry = $this->cacheEntryFactory->newFromRecentChange( $baseRC, $watched );
 110                 $this->addCacheEntry( $cacheEntry );
 111
 112                 wfProfileOut( __METHOD__ );
 113
 114                 return $ret;
 115         }
 116
 117         /**
 118          * Put accumulated information into the cache, for later display.
 119          * Page moves go on their own line.
 120          *
 121          * @param RCCacheEntry $cacheEntry
 122          */
 123         protected function addCacheEntry( RCCacheEntry $cacheEntry ) {
 124                 $title = $cacheEntry->getTitle();
 125                 $secureName = $title->getPrefixedDBkey();
 126
 127                 $type = $cacheEntry->mAttribs['rc_type'];
 128
 129                 if ( $type == RC_MOVE || $type == RC_MOVE_OVER_REDIRECT ) {
 130                         # Use an @ character to prevent collision with page names
 131                         $this->rc_cache['@@' . ( $this->rcMoveIndex++ )] = array( $cacheEntry );
 132                 } else {
 133                         # Logs are grouped by type
 134                         if ( $type == RC_LOG ) {
 135                                 $secureName = SpecialPage::getTitleFor(
 136                                         'Log',
 137                                         $cacheEntry->mAttribs['rc_log_type']
 138                                 )->getPrefixedDBkey();
 139                         }
 140                         if ( !isset( $this->rc_cache[$secureName] ) ) {
 141                                 $this->rc_cache[$secureName] = array();
 142                         }
 143
 144                         array_push( $this->rc_cache[$secureName], $cacheEntry );
 145                 }
 146         }
 147
 148         /**
 149          * Enhanced RC group
 150          * @param RCCacheEntry[] $block
 151          * @return string
 152          */
 153         protected function recentChangesBlockGroup( $block ) {
 154                 global $wgRCShowChangedSize;
 155
 156                 wfProfileIn( __METHOD__ );
 157
 158                 # Add the namespace and title of the block as part of the class
 159                 $classes = array( 'mw-collapsible', 'mw-collapsed', 'mw-enhanced-rc' );
 160                 if ( $block[0]->mAttribs['rc_log_type'] ) {
 161                         # Log entry
 162                         $classes[] = Sanitizer::escapeClass( 'mw-changeslist-log-'
 163                                 . $block[0]->mAttribs['rc_log_type'] );
 164                 } else {
 165                         $classes[] = Sanitizer::escapeClass( 'mw-changeslist-ns'
 166                                 . $block[0]->mAttribs['rc_namespace'] . '-' . $block[0]->mAttribs['rc_title'] );
 167                 }
 168                 $classes[] = $block[0]->watched && $block[0]->mAttribs['rc_timestamp'] >= $block[0]->watched
 169                         ? 'mw-changeslist-line-watched' : 'mw-changeslist-line-not-watched';
 170                 $r = Html::openElement( 'table', array( 'class' => $classes ) ) .
 171                         Html::openElement( 'tr' );
 172
 173                 # Collate list of users
 174                 $userlinks = array();
 175                 # Other properties
 176                 $unpatrolled = false;
 177                 $isnew = false;
 178                 $allBots = true;
 179                 $allMinors = true;
 180                 $curId = $currentRevision = 0;
 181                 # Some catalyst variables...
 182                 $namehidden = true;
 183                 $allLogs = true;
 184                 $oldid = '';
 185                 foreach ( $block as $rcObj ) {
 186                         $oldid = $rcObj->mAttribs['rc_last_oldid'];
 187                         if ( $rcObj->mAttribs['rc_type'] == RC_NEW ) {
 188                                 $isnew = true;
 189                         }
 190                         // If all log actions to this page were hidden, then don't
 191                         // give the name of the affected page for this block!
 192                         if ( !$this->isDeleted( $rcObj, LogPage::DELETED_ACTION ) ) {
 193                                 $namehidden = false;
 194                         }
 195                         $u = $rcObj->userlink;
 196                         if ( !isset( $userlinks[$u] ) ) {
 197                                 $userlinks[$u] = 0;
 198                         }
 199                         if ( $rcObj->unpatrolled ) {
 200                                 $unpatrolled = true;
 201                         }
 202                         if ( $rcObj->mAttribs['rc_type'] != RC_LOG ) {
 203                                 $allLogs = false;
 204                         }
 205                         # Get the latest entry with a page_id and oldid
 206                         # since logs may not have these.
 207                         if ( !$curId && $rcObj->mAttribs['rc_cur_id'] ) {
 208                                 $curId = $rcObj->mAttribs['rc_cur_id'];
 209                         }
 210                         if ( !$currentRevision && $rcObj->mAttribs['rc_this_oldid'] ) {
 211                                 $currentRevision = $rcObj->mAttribs['rc_this_oldid'];
 212                         }
 213
 214                         if ( !$rcObj->mAttribs['rc_bot'] ) {
 215                                 $allBots = false;
 216                         }
 217                         if ( !$rcObj->mAttribs['rc_minor'] ) {
 218                                 $allMinors = false;
 219                         }
 220
 221                         $userlinks[$u]++;
 222                 }
 223
 224                 # Sort the list and convert to text
 225                 krsort( $userlinks );
 226                 asort( $userlinks );
 227                 $users = array();
 228                 foreach ( $userlinks as $userlink => $count ) {
 229                         $text = $userlink;
 230                         $text .= $this->getLanguage()->getDirMark();
 231                         if ( $count > 1 ) {
 232                                 // @todo FIXME: Hardcoded '×'. Should be a message.
 233                                 $formattedCount = $this->getLanguage()->formatNum( $count ) . '×';
 234                                 $text .= ' ' . $this->msg( 'parentheses' )->rawParams( $formattedCount )->escaped();
 235                         }
 236                         array_push( $users, $text );
 237                 }
 238
 239                 $users = ' <span class="changedby">'
 240                         . $this->msg( 'brackets' )->rawParams(
 241                                 implode( $this->message['semicolon-separator'], $users )
 242                         )->escaped() . '</span>';
 243
 244                 $tl = '<span class="mw-collapsible-toggle mw-collapsible-arrow ' .
 245                         'mw-enhancedchanges-arrow mw-enhancedchanges-arrow-space"></span>';
 246                 $r .= "<td>$tl</td>";
 247
 248                 # Main line
 249                 $r .= '<td class="mw-enhanced-rc">' . $this->recentChangesFlags( array(
 250                         'newpage' => $isnew, # show, when one have this flag
 251                         'minor' => $allMinors, # show only, when all have this flag
 252                         'unpatrolled' => $unpatrolled, # show, when one have this flag
 253                         'bot' => $allBots, # show only, when all have this flag
 254                 ) );
 255
 256                 # Timestamp
 257                 $r .= '&#160;' . $block[0]->timestamp . '&#160;</td><td>';
 258
 259                 # Article link
 260                 if ( $namehidden ) {
 261                         $r .= ' <span class="history-deleted">' .
 262                                 $this->msg( 'rev-deleted-event' )->escaped() . '</span>';
 263                 } elseif ( $allLogs ) {
 264                         $r .= $this->maybeWatchedLink( $block[0]->link, $block[0]->watched );
 265                 } else {
 266                         $this->insertArticleLink( $r, $block[0], $block[0]->unpatrolled, $block[0]->watched );
 267                 }
 268
 269                 $r .= $this->getLanguage()->getDirMark();
 270
 271                 $queryParams['curid'] = $curId;
 272
 273                 # Changes message
 274                 static $nchanges = array();
 275                 static $sinceLastVisitMsg = array();
 276
 277                 $n = count( $block );
 278                 if ( !isset( $nchanges[$n] ) ) {
 279                         $nchanges[$n] = $this->msg( 'nchanges' )->numParams( $n )->escaped();
 280                 }
 281
 282                 $sinceLast = 0;
 283                 $unvisitedOldid = null;
 284                 /** @var $rcObj RCCacheEntry */
 285                 foreach ( $block as $rcObj ) {
 286                         // Same logic as below inside main foreach
 287                         if ( $rcObj->watched && $rcObj->mAttribs['rc_timestamp'] >= $rcObj->watched ) {
 288                                 $sinceLast++;
 289                                 $unvisitedOldid = $rcObj->mAttribs['rc_last_oldid'];
 290                         }
 291                 }
 292                 if ( !isset( $sinceLastVisitMsg[$sinceLast] ) ) {
 293                         $sinceLastVisitMsg[$sinceLast] =
 294                                 $this->msg( 'enhancedrc-since-last-visit' )->numParams( $sinceLast )->escaped();
 295                 }
 296
 297                 # Total change link
 298                 $r .= ' ';
 299                 $logtext = '';
 300                 /** @var $block0 RecentChange */
 301                 $block0 = $block[0];
 302                 if ( !$allLogs ) {
 303                         if ( !ChangesList::userCan( $rcObj, Revision::DELETED_TEXT, $this->getUser() ) ) {
 304                                 $logtext .= $nchanges[$n];
 305                         } elseif ( $isnew ) {
 306                                 $logtext .= $nchanges[$n];
 307                         } else {
 308                                 $logtext .= Linker::link(
 309                                         $block0->getTitle(),
 310                                         $nchanges[$n],
 311                                         array(),
 312                                         $queryParams + array(
 313                                                 'diff' => $currentRevision,
 314                                                 'oldid' => $oldid,
 315                                         ),
 316                                         array( 'known', 'noclasses' )
 317                                 );
 318                                 if ( $sinceLast > 0 && $sinceLast < $n ) {
 319                                         $logtext .= $this->message['pipe-separator'] . Linker::link(
 320                                                 $block0->getTitle(),
 321                                                 $sinceLastVisitMsg[$sinceLast],
 322                                                 array(),
 323                                                 $queryParams + array(
 324                                                         'diff' => $currentRevision,
 325                                                         'oldid' => $unvisitedOldid,
 326                                                 ),
 327                                                 array( 'known', 'noclasses' )
 328                                         );
 329                                 }
 330                         }
 331                 }
 332
 333                 # History
 334                 if ( $allLogs ) {
 335                         // don't show history link for logs
 336                 } elseif ( $namehidden || !$block0->getTitle()->exists() ) {
 337                         $logtext .= $this->message['pipe-separator'] . $this->message['enhancedrc-history'];
 338                 } else {
 339                         $params = $queryParams;
 340                         $params['action'] = 'history';
 341
 342                         $logtext .= $this->message['pipe-separator'] .
 343                                 Linker::linkKnown(
 344                                         $block0->getTitle(),
 345                                         $this->message['enhancedrc-history'],
 346                                         array(),
 347                                         $params
 348                                 );
 349                 }
 350
 351                 if ( $logtext !== '' ) {
 352                         $r .= $this->msg( 'parentheses' )->rawParams( $logtext )->escaped();
 353                 }
 354
 355                 $r .= ' <span class="mw-changeslist-separator">. .</span> ';
 356
 357                 # Character difference (does not apply if only log items)
 358                 if ( $wgRCShowChangedSize && !$allLogs ) {
 359                         $last = 0;
 360                         $first = count( $block ) - 1;
 361                         # Some events (like logs) have an "empty" size, so we need to skip those...
 362                         while ( $last < $first && $block[$last]->mAttribs['rc_new_len'] === null ) {
 363                                 $last++;
 364                         }
 365                         while ( $first > $last && $block[$first]->mAttribs['rc_old_len'] === null ) {
 366                                 $first--;
 367                         }
 368                         # Get net change
 369                         $chardiff = $this->formatCharacterDifference( $block[$first], $block[$last] );
 370
 371                         if ( $chardiff == '' ) {
 372                                 $r .= ' ';
 373                         } else {
 374                                 $r .= ' ' . $chardiff . ' <span class="mw-changeslist-separator">. .</span> ';
 375                         }
 376                 }
 377
 378                 $r .= $users;
 379                 $r .= $this->numberofWatchingusers( $block0->numberofWatchingusers );
 380                 $r .= '</td></tr>';
 381
 382                 # Sub-entries
 383                 foreach ( $block as $rcObj ) {
 384                         # Classes to apply -- TODO implement
 385                         $classes = array();
 386                         $type = $rcObj->mAttribs['rc_type'];
 387
 388                         $trClass = $rcObj->watched && $rcObj->mAttribs['rc_timestamp'] >= $rcObj->watched
 389                                 ? ' class="mw-enhanced-watched"' : '';
 390
 391                         $r .= '<tr' . $trClass . '><td></td><td class="mw-enhanced-rc">';
 392                         $r .= $this->recentChangesFlags( array(
 393                                 'newpage' => $type == RC_NEW,
 394                                 'minor' => $rcObj->mAttribs['rc_minor'],
 395                                 'unpatrolled' => $rcObj->unpatrolled,
 396                                 'bot' => $rcObj->mAttribs['rc_bot'],
 397                         ) );
 398                         $r .= '&#160;</td><td class="mw-enhanced-rc-nested"><span class="mw-enhanced-rc-time">';
 399
 400                         $params = $queryParams;
 401
 402                         if ( $rcObj->mAttribs['rc_this_oldid'] != 0 ) {
 403                                 $params['oldid'] = $rcObj->mAttribs['rc_this_oldid'];
 404                         }
 405
 406                         # Log timestamp
 407                         if ( $type == RC_LOG ) {
 408                                 $link = $rcObj->timestamp;
 409                         # Revision link
 410                         } elseif ( !ChangesList::userCan( $rcObj, Revision::DELETED_TEXT, $this->getUser() ) ) {
 411                                 $link = '<span class="history-deleted">' . $rcObj->timestamp . '</span> ';
 412                         } else {
 413
 414                                 $link = Linker::linkKnown(
 415                                         $rcObj->getTitle(),
 416                                         $rcObj->timestamp,
 417                                         array(),
 418                                         $params
 419                                 );
 420                                 if ( $this->isDeleted( $rcObj, Revision::DELETED_TEXT ) ) {
 421                                         $link = '<span class="history-deleted">' . $link . '</span> ';
 422                                 }
 423                         }
 424                         $r .= $link . '</span>';
 425
 426                         if ( !$type == RC_LOG || $type == RC_NEW ) {
 427                                 $r .= ' ' . $this->msg( 'parentheses' )->rawParams(
 428                                         $rcObj->curlink .
 429                                                 $this->message['pipe-separator'] .
 430                                                 $rcObj->lastlink
 431                                 )->escaped();
 432                         }
 433                         $r .= ' <span class="mw-changeslist-separator">. .</span> ';
 434
 435                         # Character diff
 436                         if ( $wgRCShowChangedSize ) {
 437                                 $cd = $this->formatCharacterDifference( $rcObj );
 438                                 if ( $cd !== '' ) {
 439                                         $r .= $cd . ' <span class="mw-changeslist-separator">. .</span> ';
 440                                 }
 441                         }
 442
 443                         if ( $rcObj->mAttribs['rc_type'] == RC_LOG ) {
 444                                 $r .= $this->insertLogEntry( $rcObj );
 445                         } else {
 446                                 # User links
 447                                 $r .= $rcObj->userlink;
 448                                 $r .= $rcObj->usertalklink;
 449                                 $r .= $this->insertComment( $rcObj );
 450                         }
 451
 452                         # Rollback
 453                         $this->insertRollback( $r, $rcObj );
 454                         # Tags
 455                         $this->insertTags( $r, $rcObj, $classes );
 456
 457                         $r .= "</td></tr>\n";
 458                 }
 459                 $r .= "</table>\n";
 460
 461                 $this->rcCacheIndex++;
 462
 463                 wfProfileOut( __METHOD__ );
 464
 465                 return $r;
 466         }
 467
 468         /**
 469          * Generate HTML for an arrow or placeholder graphic
 470          * @param string $dir One of '', 'd', 'l', 'r'
 471          * @param string $alt
 472          * @param string $title
 473          * @return string HTML "<img>" tag
 474          */
 475         protected function arrow( $dir, $alt = '', $title = '' ) {
 476                 global $wgStylePath;
 477                 $encUrl = htmlspecialchars( $wgStylePath . '/common/images/Arr_' . $dir . '.png' );
 478                 $encAlt = htmlspecialchars( $alt );
 479                 $encTitle = htmlspecialchars( $title );
 480
 481                 return "<img src=\"$encUrl\" width=\"12\" height=\"12\" alt=\"$encAlt\" title=\"$encTitle\" />";
 482         }
 483
 484         /**
 485          * Generate HTML for a right- or left-facing arrow,
 486          * depending on language direction.
 487          * @return string HTML "<img>" tag
 488          */
 489         protected function sideArrow() {
 490                 $dir = $this->getLanguage()->isRTL() ? 'l' : 'r';
 491
 492                 return $this->arrow( $dir, '+', $this->msg( 'rc-enhanced-expand' )->text() );
 493         }
 494
 495         /**
 496          * Generate HTML for a down-facing arrow
 497          * depending on language direction.
 498          * @return string HTML "<img>" tag
 499          */
 500         protected function downArrow() {
 501                 return $this->arrow( 'd', '-', $this->msg( 'rc-enhanced-hide' )->text() );
 502         }
 503
 504         /**
 505          * Generate HTML for a spacer image
 506          * @return string HTML "<img>" tag
 507          */
 508         protected function spacerArrow() {
 509                 return $this->arrow( '', codepointToUtf8( 0xa0 ) ); // non-breaking space
 510         }
 511
 512         /**
 513          * Enhanced RC ungrouped line.
 514          *
 515          * @param RecentChange|RCCacheEntry $rcObj
 516          * @return string A HTML formatted line (generated using $r)
 517          */
 518         protected function recentChangesBlockLine( $rcObj ) {
 519                 global $wgRCShowChangedSize;
 520
 521                 wfProfileIn( __METHOD__ );
 522                 $query['curid'] = $rcObj->mAttribs['rc_cur_id'];
 523
 524                 $type = $rcObj->mAttribs['rc_type'];
 525                 $logType = $rcObj->mAttribs['rc_log_type'];
 526                 $classes = array( 'mw-enhanced-rc' );
 527                 if ( $logType ) {
 528                         # Log entry
 529                         $classes[] = Sanitizer::escapeClass( 'mw-changeslist-log-' . $logType );
 530                 } else {
 531                         $classes[] = Sanitizer::escapeClass( 'mw-changeslist-ns' .
 532                                 $rcObj->mAttribs['rc_namespace'] . '-' . $rcObj->mAttribs['rc_title'] );
 533                 }
 534                 $classes[] = $rcObj->watched && $rcObj->mAttribs['rc_timestamp'] >= $rcObj->watched
 535                         ? 'mw-changeslist-line-watched' : 'mw-changeslist-line-not-watched';
 536                 $r = Html::openElement( 'table', array( 'class' => $classes ) ) .
 537                         Html::openElement( 'tr' );
 538
 539                 $r .= '<td class="mw-enhanced-rc"><span class="mw-enhancedchanges-arrow-space"></span>';
 540                 # Flag and Timestamp
 541                 if ( $type == RC_MOVE || $type == RC_MOVE_OVER_REDIRECT ) {
 542                         $r .= $this->recentChangesFlags( array() ); // no flags, but need the placeholders
 543                 } else {
 544                         $r .= $this->recentChangesFlags( array(
 545                                 'newpage' => $type == RC_NEW,
 546                                 'minor' => $rcObj->mAttribs['rc_minor'],
 547                                 'unpatrolled' => $rcObj->unpatrolled,
 548                                 'bot' => $rcObj->mAttribs['rc_bot'],
 549                         ) );
 550                 }
 551                 $r .= '&#160;' . $rcObj->timestamp . '&#160;</td><td>';
 552                 # Article or log link
 553                 if ( $logType ) {
 554                         $logPage = new LogPage( $logType );
 555                         $logTitle = SpecialPage::getTitleFor( 'Log', $logType );
 556                         $logName = $logPage->getName()->escaped();
 557                         $r .= $this->msg( 'parentheses' )
 558                                 ->rawParams( Linker::linkKnown( $logTitle, $logName ) )->escaped();
 559                 } else {
 560                         $this->insertArticleLink( $r, $rcObj, $rcObj->unpatrolled, $rcObj->watched );
 561                 }
 562                 # Diff and hist links
 563                 if ( $type != RC_LOG ) {
 564                         $query['action'] = 'history';
 565                         $r .= ' ' . $this->msg( 'parentheses' )
 566                                 ->rawParams( $rcObj->difflink . $this->message['pipe-separator'] . Linker::linkKnown(
 567                                         $rcObj->getTitle(),
 568                                         $this->message['hist'],
 569                                         array(),
 570                                         $query
 571                                 ) )->escaped();
 572                 }
 573                 $r .= ' <span class="mw-changeslist-separator">. .</span> ';
 574                 # Character diff
 575                 if ( $wgRCShowChangedSize ) {
 576                         $cd = $this->formatCharacterDifference( $rcObj );
 577                         if ( $cd !== '' ) {
 578                                 $r .= $cd . ' <span class="mw-changeslist-separator">. .</span> ';
 579                         }
 580                 }
 581
 582                 if ( $type == RC_LOG ) {
 583                         $r .= $this->insertLogEntry( $rcObj );
 584                 } else {
 585                         $r .= ' ' . $rcObj->userlink . $rcObj->usertalklink;
 586                         $r .= $this->insertComment( $rcObj );
 587                         $this->insertRollback( $r, $rcObj );
 588                 }
 589
 590                 # Tags
 591                 $this->insertTags( $r, $rcObj, $classes );
 592                 # Show how many people are watching this if enabled
 593                 $r .= $this->numberofWatchingusers( $rcObj->numberofWatchingusers );
 594
 595                 $r .= "</td></tr></table>\n";
 596
 597                 wfProfileOut( __METHOD__ );
 598
 599                 return $r;
 600         }
 601
 602         /**
 603          * If enhanced RC is in use, this function takes the previously cached
 604          * RC lines, arranges them, and outputs the HTML
 605          *
 606          * @return string
 607          */
 608         protected function recentChangesBlock() {
 609                 if ( count( $this->rc_cache ) == 0 ) {
 610                         return '';
 611                 }
 612
 613                 wfProfileIn( __METHOD__ );
 614
 615                 $blockOut = '';
 616                 foreach ( $this->rc_cache as $block ) {
 617                         if ( count( $block ) < 2 ) {
 618                                 $blockOut .= $this->recentChangesBlockLine( array_shift( $block ) );
 619                         } else {
 620                                 $blockOut .= $this->recentChangesBlockGroup( $block );
 621                         }
 622                 }
 623
 624                 wfProfileOut( __METHOD__ );
 625
 626                 return '<div>' . $blockOut . '</div>';
 627         }
 628
 629         /**
 630          * Returns text for the end of RC
 631          * If enhanced RC is in use, returns pretty much all the text
 632          * @return string
 633          */
 634         public function endRecentChangesList() {
 635                 return $this->recentChangesBlock() . '</div>';
 636         }
 637 }