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          * @var TemplateParser
  37          */
  38         protected $templateParser;
  39
  40         /**
  41          * @param IContextSource|Skin $obj
  42          * @param array $filterGroups Array of ChangesListFilterGroup objects (currently optional)
  43          * @throws MWException
  44          */
  45         public function __construct( $obj, array $filterGroups = [] ) {
  46                 if ( $obj instanceof Skin ) {
  47                         // @todo: deprecate constructing with Skin
  48                         $context = $obj->getContext();
  49                 } else {
  50                         if ( !$obj instanceof IContextSource ) {
  51                                 throw new MWException( 'EnhancedChangesList must be constructed with a '
  52                                         . 'context source or skin.' );
  53                         }
  54
  55                         $context = $obj;
  56                 }
  57
  58                 parent::__construct( $context, $filterGroups );
  59
  60                 // message is set by the parent ChangesList class
  61                 $this->cacheEntryFactory = new RCCacheEntryFactory(
  62                         $context,
  63                         $this->message,
  64                         $this->linkRenderer
  65                 );
  66                 $this->templateParser = new TemplateParser();
  67         }
  68
  69         /**
  70          * Add the JavaScript file for enhanced changeslist
  71          * @return string
  72          */
  73         public function beginRecentChangesList() {
  74                 $this->rc_cache = [];
  75                 $this->rcMoveIndex = 0;
  76                 $this->rcCacheIndex = 0;
  77                 $this->lastdate = '';
  78                 $this->rclistOpen = false;
  79                 $this->getOutput()->addModuleStyles( [
  80                         'mediawiki.special.changeslist',
  81                         'mediawiki.special.changeslist.enhanced',
  82                 ] );
  83                 $this->getOutput()->addModules( [
  84                         'jquery.makeCollapsible',
  85                         'mediawiki.icon',
  86                 ] );
  87
  88                 return '<div class="mw-changeslist">';
  89         }
  90
  91         /**
  92          * Format a line for enhanced recentchange (aka with javascript and block of lines).
  93          *
  94          * @param RecentChange $rc
  95          * @param bool $watched
  96          * @param int $linenumber (default null)
  97          *
  98          * @return string
  99          */
 100         public function recentChangesLine( &$rc, $watched = false, $linenumber = null ) {
 101
 102                 $date = $this->getLanguage()->userDate(
 103                         $rc->mAttribs['rc_timestamp'],
 104                         $this->getUser()
 105                 );
 106
 107                 $ret = '';
 108
 109                 # If it's a new day, add the headline and flush the cache
 110                 if ( $date != $this->lastdate ) {
 111                         # Process current cache
 112                         $ret = $this->recentChangesBlock();
 113                         $this->rc_cache = [];
 114                         $ret .= Xml::element( 'h4', null, $date ) . "\n";
 115                         $this->lastdate = $date;
 116                 }
 117
 118                 $cacheEntry = $this->cacheEntryFactory->newFromRecentChange( $rc, $watched );
 119                 $this->addCacheEntry( $cacheEntry );
 120
 121                 return $ret;
 122         }
 123
 124         /**
 125          * Put accumulated information into the cache, for later display.
 126          * Page moves go on their own line.
 127          *
 128          * @param RCCacheEntry $cacheEntry
 129          */
 130         protected function addCacheEntry( RCCacheEntry $cacheEntry ) {
 131                 $cacheGroupingKey = $this->makeCacheGroupingKey( $cacheEntry );
 132
 133                 if ( !isset( $this->rc_cache[$cacheGroupingKey] ) ) {
 134                         $this->rc_cache[$cacheGroupingKey] = [];
 135                 }
 136
 137                 array_push( $this->rc_cache[$cacheGroupingKey], $cacheEntry );
 138         }
 139
 140         /**
 141          * @todo use rc_source to group, if set; fallback to rc_type
 142          *
 143          * @param RCCacheEntry $cacheEntry
 144          *
 145          * @return string
 146          */
 147         protected function makeCacheGroupingKey( RCCacheEntry $cacheEntry ) {
 148                 $title = $cacheEntry->getTitle();
 149                 $cacheGroupingKey = $title->getPrefixedDBkey();
 150
 151                 $type = $cacheEntry->mAttribs['rc_type'];
 152
 153                 if ( $type == RC_LOG ) {
 154                         // Group by log type
 155                         $cacheGroupingKey = SpecialPage::getTitleFor(
 156                                 'Log',
 157                                 $cacheEntry->mAttribs['rc_log_type']
 158                         )->getPrefixedDBkey();
 159                 }
 160
 161                 return $cacheGroupingKey;
 162         }
 163
 164         /**
 165          * Enhanced RC group
 166          * @param RCCacheEntry[] $block
 167          * @return string
 168          * @throws DomainException
 169          */
 170         protected function recentChangesBlockGroup( $block ) {
 171                 $recentChangesFlags = $this->getConfig()->get( 'RecentChangesFlags' );
 172
 173                 # Add the namespace and title of the block as part of the class
 174                 $tableClasses = [ 'mw-collapsible', 'mw-collapsed', 'mw-enhanced-rc' ];
 175                 if ( $block[0]->mAttribs['rc_log_type'] ) {
 176                         # Log entry
 177                         $tableClasses[] = Sanitizer::escapeClass( 'mw-changeslist-log-'
 178                                 . $block[0]->mAttribs['rc_log_type'] );
 179                 } else {
 180                         $tableClasses[] = Sanitizer::escapeClass( 'mw-changeslist-ns'
 181                                 . $block[0]->mAttribs['rc_namespace'] . '-' . $block[0]->mAttribs['rc_title'] );
 182                 }
 183                 if ( $block[0]->watched
 184                         && $block[0]->mAttribs['rc_timestamp'] >= $block[0]->watched
 185                 ) {
 186                         $tableClasses[] = 'mw-changeslist-line-watched';
 187                 } else {
 188                         $tableClasses[] = 'mw-changeslist-line-not-watched';
 189                 }
 190
 191                 # Collate list of users
 192                 $userlinks = [];
 193                 # Other properties
 194                 $curId = 0;
 195                 # Some catalyst variables...
 196                 $namehidden = true;
 197                 $allLogs = true;
 198                 $RCShowChangedSize = $this->getConfig()->get( 'RCShowChangedSize' );
 199
 200                 # Default values for RC flags
 201                 $collectedRcFlags = [];
 202                 foreach ( $recentChangesFlags as $key => $value ) {
 203                         $flagGrouping = ( isset( $recentChangesFlags[$key]['grouping'] ) ?
 204                                         $recentChangesFlags[$key]['grouping'] : 'any' );
 205                         switch ( $flagGrouping ) {
 206                                 case 'all':
 207                                         $collectedRcFlags[$key] = true;
 208                                         break;
 209                                 case 'any':
 210                                         $collectedRcFlags[$key] = false;
 211                                         break;
 212                                 default:
 213                                         throw new DomainException( "Unknown grouping type \"{$flagGrouping}\"" );
 214                         }
 215                 }
 216                 foreach ( $block as $rcObj ) {
 217                         // If all log actions to this page were hidden, then don't
 218                         // give the name of the affected page for this block!
 219                         if ( !$this->isDeleted( $rcObj, LogPage::DELETED_ACTION ) ) {
 220                                 $namehidden = false;
 221                         }
 222                         $u = $rcObj->userlink;
 223                         if ( !isset( $userlinks[$u] ) ) {
 224                                 $userlinks[$u] = 0;
 225                         }
 226                         if ( $rcObj->mAttribs['rc_type'] != RC_LOG ) {
 227                                 $allLogs = false;
 228                         }
 229                         # Get the latest entry with a page_id and oldid
 230                         # since logs may not have these.
 231                         if ( !$curId && $rcObj->mAttribs['rc_cur_id'] ) {
 232                                 $curId = $rcObj->mAttribs['rc_cur_id'];
 233                         }
 234
 235                         $userlinks[$u]++;
 236                 }
 237
 238                 # Sort the list and convert to text
 239                 krsort( $userlinks );
 240                 asort( $userlinks );
 241                 $users = [];
 242                 foreach ( $userlinks as $userlink => $count ) {
 243                         $text = $userlink;
 244                         $text .= $this->getLanguage()->getDirMark();
 245                         if ( $count > 1 ) {
 246                                 $formattedCount = $this->msg( 'ntimes' )->numParams( $count )->escaped();
 247                                 $text .= ' ' . $this->msg( 'parentheses' )->rawParams( $formattedCount )->escaped();
 248                         }
 249                         array_push( $users, $text );
 250                 }
 251
 252                 # Article link
 253                 $articleLink = '';
 254                 $revDeletedMsg = false;
 255                 if ( $namehidden ) {
 256                         $revDeletedMsg = $this->msg( 'rev-deleted-event' )->escaped();
 257                 } elseif ( $allLogs ) {
 258                         $articleLink = $this->maybeWatchedLink( $block[0]->link, $block[0]->watched );
 259                 } else {
 260                         $articleLink = $this->getArticleLink( $block[0], $block[0]->unpatrolled, $block[0]->watched );
 261                 }
 262
 263                 $queryParams['curid'] = $curId;
 264
 265                 # Sub-entries
 266                 $lines = [];
 267                 foreach ( $block as $i => $rcObj ) {
 268                         $line = $this->getLineData( $block, $rcObj, $queryParams );
 269                         if ( !$line ) {
 270                                 // completely ignore this RC entry if we don't want to render it
 271                                 unset( $block[$i] );
 272                                 continue;
 273                         }
 274
 275                         // Roll up flags
 276                         foreach ( $line['recentChangesFlagsRaw'] as $key => $value ) {
 277                                 $flagGrouping = ( isset( $recentChangesFlags[$key]['grouping'] ) ?
 278                                         $recentChangesFlags[$key]['grouping'] : 'any' );
 279                                 switch ( $flagGrouping ) {
 280                                         case 'all':
 281                                                 if ( !$value ) {
 282                                                         $collectedRcFlags[$key] = false;
 283                                                 }
 284                                                 break;
 285                                         case 'any':
 286                                                 if ( $value ) {
 287                                                         $collectedRcFlags[$key] = true;
 288                                                 }
 289                                                 break;
 290                                         default:
 291                                                 throw new DomainException( "Unknown grouping type \"{$flagGrouping}\"" );
 292                                 }
 293                         }
 294
 295                         $lines[] = $line;
 296                 }
 297
 298                 // Further down are some assumptions that $block is a 0-indexed array
 299                 // with (count-1) as last key. Let's make sure it is.
 300                 $block = array_values( $block );
 301
 302                 if ( empty( $block ) || !$lines ) {
 303                         // if we can't show anything, don't display this block altogether
 304                         return '';
 305                 }
 306
 307                 $logText = $this->getLogText( $block, $queryParams, $allLogs,
 308                         $collectedRcFlags['newpage'], $namehidden
 309                 );
 310
 311                 # Character difference (does not apply if only log items)
 312                 $charDifference = false;
 313                 if ( $RCShowChangedSize && !$allLogs ) {
 314                         $last = 0;
 315                         $first = count( $block ) - 1;
 316                         # Some events (like logs and category changes) have an "empty" size, so we need to skip those...
 317                         while ( $last < $first && $block[$last]->mAttribs['rc_new_len'] === null ) {
 318                                 $last++;
 319                         }
 320                         while ( $last < $first && $block[$first]->mAttribs['rc_old_len'] === null ) {
 321                                 $first--;
 322                         }
 323                         # Get net change
 324                         $charDifference = $this->formatCharacterDifference( $block[$first], $block[$last] );
 325                 }
 326
 327                 $numberofWatchingusers = $this->numberofWatchingusers( $block[0]->numberofWatchingusers );
 328                 $usersList = $this->msg( 'brackets' )->rawParams(
 329                         implode( $this->message['semicolon-separator'], $users )
 330                 )->escaped();
 331
 332                 $templateParams = [
 333                         'articleLink' => $articleLink,
 334                         'charDifference' => $charDifference,
 335                         'collectedRcFlags' => $this->recentChangesFlags( $collectedRcFlags ),
 336                         'languageDirMark' => $this->getLanguage()->getDirMark(),
 337                         'lines' => $lines,
 338                         'logText' => $logText,
 339                         'numberofWatchingusers' => $numberofWatchingusers,
 340                         'rev-deleted-event' => $revDeletedMsg,
 341                         'tableClasses' => $tableClasses,
 342                         'timestamp' => $block[0]->timestamp,
 343                         'users' => $usersList,
 344                 ];
 345
 346                 $this->rcCacheIndex++;
 347
 348                 return $this->templateParser->processTemplate(
 349                         'EnhancedChangesListGroup',
 350                         $templateParams
 351                 );
 352         }
 353
 354         /**
 355          * @param RCCacheEntry[] $block
 356          * @param RCCacheEntry $rcObj
 357          * @param array $queryParams
 358          * @return array
 359          * @throws Exception
 360          * @throws FatalError
 361          * @throws MWException
 362          */
 363         protected function getLineData( array $block, RCCacheEntry $rcObj, array $queryParams = [] ) {
 364                 $RCShowChangedSize = $this->getConfig()->get( 'RCShowChangedSize' );
 365
 366                 $type = $rcObj->mAttribs['rc_type'];
 367                 $data = [];
 368                 $lineParams = [];
 369
 370                 $classes = [ 'mw-enhanced-rc' ];
 371                 if ( $rcObj->watched
 372                         && $rcObj->mAttribs['rc_timestamp'] >= $rcObj->watched
 373                 ) {
 374                         $classes[] = 'mw-enhanced-watched';
 375                 }
 376                 $classes = array_merge( $classes, $this->getHTMLClassesForFilters( $rcObj ) );
 377
 378                 $separator = ' <span class="mw-changeslist-separator">. .</span> ';
 379
 380                 $data['recentChangesFlags'] = [
 381                         'newpage' => $type == RC_NEW,
 382                         'minor' => $rcObj->mAttribs['rc_minor'],
 383                         'unpatrolled' => $rcObj->unpatrolled,
 384                         'bot' => $rcObj->mAttribs['rc_bot'],
 385                 ];
 386
 387                 $params = $queryParams;
 388
 389                 if ( $rcObj->mAttribs['rc_this_oldid'] != 0 ) {
 390                         $params['oldid'] = $rcObj->mAttribs['rc_this_oldid'];
 391                 }
 392
 393                 # Log timestamp
 394                 if ( $type == RC_LOG ) {
 395                         $link = $rcObj->timestamp;
 396                         # Revision link
 397                 } elseif ( !ChangesList::userCan( $rcObj, Revision::DELETED_TEXT, $this->getUser() ) ) {
 398                         $link = '<span class="history-deleted">' . $rcObj->timestamp . '</span> ';
 399                 } else {
 400                         $link = $this->linkRenderer->makeKnownLink(
 401                                 $rcObj->getTitle(),
 402                                 new HtmlArmor( $rcObj->timestamp ),
 403                                 [],
 404                                 $params
 405                         );
 406                         if ( $this->isDeleted( $rcObj, Revision::DELETED_TEXT ) ) {
 407                                 $link = '<span class="history-deleted">' . $link . '</span> ';
 408                         }
 409                 }
 410                 $data['timestampLink'] = $link;
 411
 412                 $currentAndLastLinks = '';
 413                 if ( !$type == RC_LOG || $type == RC_NEW ) {
 414                         $currentAndLastLinks .= ' ' . $this->msg( 'parentheses' )->rawParams(
 415                                         $rcObj->curlink .
 416                                         $this->message['pipe-separator'] .
 417                                         $rcObj->lastlink
 418                                 )->escaped();
 419                 }
 420                 $data['currentAndLastLinks'] = $currentAndLastLinks;
 421                 $data['separatorAfterCurrentAndLastLinks'] = $separator;
 422
 423                 # Character diff
 424                 if ( $RCShowChangedSize ) {
 425                         $cd = $this->formatCharacterDifference( $rcObj );
 426                         if ( $cd !== '' ) {
 427                                 $data['characterDiff'] = $cd;
 428                                 $data['separatorAfterCharacterDiff'] = $separator;
 429                         }
 430                 }
 431
 432                 if ( $rcObj->mAttribs['rc_type'] == RC_LOG ) {
 433                         $data['logEntry'] = $this->insertLogEntry( $rcObj );
 434                 } elseif ( $this->isCategorizationWithoutRevision( $rcObj ) ) {
 435                         $data['comment'] = $this->insertComment( $rcObj );
 436                 } else {
 437                         # User links
 438                         $data['userLink'] = $rcObj->userlink;
 439                         $data['userTalkLink'] = $rcObj->usertalklink;
 440                         $data['comment'] = $this->insertComment( $rcObj );
 441                 }
 442
 443                 # Rollback
 444                 $data['rollback'] = $this->getRollback( $rcObj );
 445
 446                 # Tags
 447                 $data['tags'] = $this->getTags( $rcObj, $classes );
 448
 449                 $attribs = $this->getDataAttributes( $rcObj );
 450
 451                 // give the hook a chance to modify the data
 452                 $success = Hooks::run( 'EnhancedChangesListModifyLineData',
 453                         [ $this, &$data, $block, $rcObj, &$classes, &$attribs ] );
 454                 if ( !$success ) {
 455                         // skip entry if hook aborted it
 456                         return [];
 457                 }
 458                 $attribs = wfArrayFilterByKey( $attribs, [ Sanitizer::class, 'isReservedDataAttribute' ] );
 459
 460                 $lineParams['recentChangesFlagsRaw'] = [];
 461                 if ( isset( $data['recentChangesFlags'] ) ) {
 462                         $lineParams['recentChangesFlags'] = $this->recentChangesFlags( $data['recentChangesFlags'] );
 463                         # FIXME: This is used by logic, don't return it in the template params.
 464                         $lineParams['recentChangesFlagsRaw'] = $data['recentChangesFlags'];
 465                         unset( $data['recentChangesFlags'] );
 466                 }
 467
 468                 if ( isset( $data['timestampLink'] ) ) {
 469                         $lineParams['timestampLink'] = $data['timestampLink'];
 470                         unset( $data['timestampLink'] );
 471                 }
 472
 473                 $lineParams['classes'] = array_values( $classes );
 474                 $lineParams['attribs'] = Html::expandAttributes( $attribs );
 475
 476                 // everything else: makes it easier for extensions to add or remove data
 477                 $lineParams['data'] = array_values( $data );
 478
 479                 return $lineParams;
 480         }
 481
 482         /**
 483          * Generates amount of changes (linking to diff ) & link to history.
 484          *
 485          * @param array $block
 486          * @param array $queryParams
 487          * @param bool $allLogs
 488          * @param bool $isnew
 489          * @param bool $namehidden
 490          * @return string
 491          */
 492         protected function getLogText( $block, $queryParams, $allLogs, $isnew, $namehidden ) {
 493                 if ( empty( $block ) ) {
 494                         return '';
 495                 }
 496
 497                 # Changes message
 498                 static $nchanges = [];
 499                 static $sinceLastVisitMsg = [];
 500
 501                 $n = count( $block );
 502                 if ( !isset( $nchanges[$n] ) ) {
 503                         $nchanges[$n] = $this->msg( 'nchanges' )->numParams( $n )->escaped();
 504                 }
 505
 506                 $sinceLast = 0;
 507                 $unvisitedOldid = null;
 508                 /** @var $rcObj RCCacheEntry */
 509                 foreach ( $block as $rcObj ) {
 510                         // Same logic as below inside main foreach
 511                         if ( $rcObj->watched && $rcObj->mAttribs['rc_timestamp'] >= $rcObj->watched ) {
 512                                 $sinceLast++;
 513                                 $unvisitedOldid = $rcObj->mAttribs['rc_last_oldid'];
 514                         }
 515                 }
 516                 if ( !isset( $sinceLastVisitMsg[$sinceLast] ) ) {
 517                         $sinceLastVisitMsg[$sinceLast] =
 518                                 $this->msg( 'enhancedrc-since-last-visit' )->numParams( $sinceLast )->escaped();
 519                 }
 520
 521                 $currentRevision = 0;
 522                 foreach ( $block as $rcObj ) {
 523                         if ( !$currentRevision ) {
 524                                 $currentRevision = $rcObj->mAttribs['rc_this_oldid'];
 525                         }
 526                 }
 527
 528                 # Total change link
 529                 $links = [];
 530                 /** @var $block0 RecentChange */
 531                 $block0 = $block[0];
 532                 $last = $block[count( $block ) - 1];
 533                 if ( !$allLogs ) {
 534                         if ( !ChangesList::userCan( $rcObj, Revision::DELETED_TEXT, $this->getUser() ) ||
 535                                 $isnew ||
 536                                 $rcObj->mAttribs['rc_type'] == RC_CATEGORIZE
 537                         ) {
 538                                 $links['total-changes'] = $nchanges[$n];
 539                         } else {
 540                                 $links['total-changes'] = $this->linkRenderer->makeKnownLink(
 541                                         $block0->getTitle(),
 542                                         new HtmlArmor( $nchanges[$n] ),
 543                                         [ 'class' => 'mw-changeslist-groupdiff' ],
 544                                         $queryParams + [
 545                                                 'diff' => $currentRevision,
 546                                                 'oldid' => $last->mAttribs['rc_last_oldid'],
 547                                         ]
 548                                 );
 549                                 if ( $sinceLast > 0 && $sinceLast < $n ) {
 550                                         $links['total-changes-since-last'] = $this->linkRenderer->makeKnownLink(
 551                                                         $block0->getTitle(),
 552                                                         new HtmlArmor( $sinceLastVisitMsg[$sinceLast] ),
 553                                                         [ 'class' => 'mw-changeslist-groupdiff' ],
 554                                                         $queryParams + [
 555                                                                 'diff' => $currentRevision,
 556                                                                 'oldid' => $unvisitedOldid,
 557                                                         ]
 558                                                 );
 559                                 }
 560                         }
 561                 }
 562
 563                 # History
 564                 if ( $allLogs || $rcObj->mAttribs['rc_type'] == RC_CATEGORIZE ) {
 565                         // don't show history link for logs
 566                 } elseif ( $namehidden || !$block0->getTitle()->exists() ) {
 567                         $links['history'] = $this->message['enhancedrc-history'];
 568                 } else {
 569                         $params = $queryParams;
 570                         $params['action'] = 'history';
 571
 572                         $links['history'] = $this->linkRenderer->makeKnownLink(
 573                                         $block0->getTitle(),
 574                                         new HtmlArmor( $this->message['enhancedrc-history'] ),
 575                                         [ 'class' => 'mw-changeslist-history' ],
 576                                         $params
 577                                 );
 578                 }
 579
 580                 # Allow others to alter, remove or add to these links
 581                 Hooks::run( 'EnhancedChangesList::getLogText',
 582                         [ $this, &$links, $block ] );
 583
 584                 if ( !$links ) {
 585                         return '';
 586                 }
 587
 588                 $logtext = implode( $this->message['pipe-separator'], $links );
 589                 $logtext = $this->msg( 'parentheses' )->rawParams( $logtext )->escaped();
 590                 return ' ' . $logtext;
 591         }
 592
 593         /**
 594          * Enhanced RC ungrouped line.
 595          *
 596          * @param RecentChange|RCCacheEntry $rcObj
 597          * @return string A HTML formatted line (generated using $r)
 598          */
 599         protected function recentChangesBlockLine( $rcObj ) {
 600                 $data = [];
 601
 602                 $query['curid'] = $rcObj->mAttribs['rc_cur_id'];
 603
 604                 $type = $rcObj->mAttribs['rc_type'];
 605                 $logType = $rcObj->mAttribs['rc_log_type'];
 606                 $classes = $this->getHTMLClasses( $rcObj, $rcObj->watched );
 607                 $classes[] = 'mw-enhanced-rc';
 608
 609                 if ( $logType ) {
 610                         # Log entry
 611                         $classes[] = Sanitizer::escapeClass( 'mw-changeslist-log-' . $logType );
 612                 } else {
 613                         $classes[] = Sanitizer::escapeClass( 'mw-changeslist-ns' .
 614                                 $rcObj->mAttribs['rc_namespace'] . '-' . $rcObj->mAttribs['rc_title'] );
 615                 }
 616
 617                 # Flag and Timestamp
 618                 $data['recentChangesFlags'] = [
 619                         'newpage' => $type == RC_NEW,
 620                         'minor' => $rcObj->mAttribs['rc_minor'],
 621                         'unpatrolled' => $rcObj->unpatrolled,
 622                         'bot' => $rcObj->mAttribs['rc_bot'],
 623                 ];
 624                 // timestamp is not really a link here, but is called timestampLink
 625                 // for consistency with EnhancedChangesListModifyLineData
 626                 $data['timestampLink'] = $rcObj->timestamp;
 627
 628                 # Article or log link
 629                 if ( $logType ) {
 630                         $logPage = new LogPage( $logType );
 631                         $logTitle = SpecialPage::getTitleFor( 'Log', $logType );
 632                         $logName = $logPage->getName()->text();
 633                         $data['logLink'] = $this->msg( 'parentheses' )
 634                                 ->rawParams(
 635                                         $this->linkRenderer->makeKnownLink( $logTitle, $logName )
 636                                 )->escaped();
 637                 } else {
 638                         $data['articleLink'] = $this->getArticleLink( $rcObj, $rcObj->unpatrolled, $rcObj->watched );
 639                 }
 640
 641                 # Diff and hist links
 642                 if ( $type != RC_LOG && $type != RC_CATEGORIZE ) {
 643                         $query['action'] = 'history';
 644                         $data['historyLink'] = $this->getDiffHistLinks( $rcObj, $query );
 645                 }
 646                 $data['separatorAfterLinks'] = ' <span class="mw-changeslist-separator">. .</span> ';
 647
 648                 # Character diff
 649                 if ( $this->getConfig()->get( 'RCShowChangedSize' ) ) {
 650                         $cd = $this->formatCharacterDifference( $rcObj );
 651                         if ( $cd !== '' ) {
 652                                 $data['characterDiff'] = $cd;
 653                                 $data['separatorAftercharacterDiff'] = ' <span class="mw-changeslist-separator">. .</span> ';
 654                         }
 655                 }
 656
 657                 if ( $type == RC_LOG ) {
 658                         $data['logEntry'] = $this->insertLogEntry( $rcObj );
 659                 } elseif ( $this->isCategorizationWithoutRevision( $rcObj ) ) {
 660                         $data['comment'] = $this->insertComment( $rcObj );
 661                 } else {
 662                         $data['userLink'] = $rcObj->userlink;
 663                         $data['userTalkLink'] = $rcObj->usertalklink;
 664                         $data['comment'] = $this->insertComment( $rcObj );
 665                         if ( $type == RC_CATEGORIZE ) {
 666                                 $data['historyLink'] = $this->getDiffHistLinks( $rcObj, $query );
 667                         }
 668                         $data['rollback'] = $this->getRollback( $rcObj );
 669                 }
 670
 671                 # Tags
 672                 $data['tags'] = $this->getTags( $rcObj, $classes );
 673
 674                 # Show how many people are watching this if enabled
 675                 $data['watchingUsers'] = $this->numberofWatchingusers( $rcObj->numberofWatchingusers );
 676
 677                 $data['attribs'] = array_merge( $this->getDataAttributes( $rcObj ), [ 'class' => $classes ] );
 678
 679                 // give the hook a chance to modify the data
 680                 $success = Hooks::run( 'EnhancedChangesListModifyBlockLineData',
 681                         [ $this, &$data, $rcObj ] );
 682                 if ( !$success ) {
 683                         // skip entry if hook aborted it
 684                         return '';
 685                 }
 686                 $attribs = $data['attribs'];
 687                 unset( $data['attribs'] );
 688                 $attribs = wfArrayFilterByKey( $attribs, function( $key ) {
 689                         return $key === 'class' || Sanitizer::isReservedDataAttribute( $key );
 690                 } );
 691
 692                 $line = Html::openElement( 'table', $attribs ) . Html::openElement( 'tr' );
 693                 $line .= '<td class="mw-enhanced-rc"><span class="mw-enhancedchanges-arrow-space"></span>';
 694
 695                 if ( isset( $data['recentChangesFlags'] ) ) {
 696                         $line .= $this->recentChangesFlags( $data['recentChangesFlags'] );
 697                         unset( $data['recentChangesFlags'] );
 698                 }
 699
 700                 if ( isset( $data['timestampLink'] ) ) {
 701                         $line .= '&#160;' . $data['timestampLink'];
 702                         unset( $data['timestampLink'] );
 703                 }
 704                 $line .= '&#160;</td><td>';
 705
 706                 // everything else: makes it easier for extensions to add or remove data
 707                 $line .= implode( '', $data );
 708
 709                 $line .= "</td></tr></table>\n";
 710
 711                 return $line;
 712         }
 713
 714         /**
 715          * Returns value to be used in 'historyLink' element of $data param in
 716          * EnhancedChangesListModifyBlockLineData hook.
 717          *
 718          * @since 1.27
 719          *
 720          * @param RCCacheEntry $rc
 721          * @param array $query array of key/value pairs to append as a query string
 722          * @return string HTML
 723          */
 724         public function getDiffHistLinks( RCCacheEntry $rc, array $query ) {
 725                 $pageTitle = $rc->getTitle();
 726                 if ( $rc->getAttribute( 'rc_type' ) == RC_CATEGORIZE ) {
 727                         // For categorizations we must swap the category title with the page title!
 728                         $pageTitle = Title::newFromID( $rc->getAttribute( 'rc_cur_id' ) );
 729                         if ( !$pageTitle ) {
 730                                 // The page has been deleted, but the RC entry
 731                                 // deletion job has not run yet. Just skip.
 732                                 return '';
 733                         }
 734                 }
 735
 736                 $retVal = ' ' . $this->msg( 'parentheses' )
 737                                 ->rawParams( $rc->difflink . $this->message['pipe-separator']
 738                                         . $this->linkRenderer->makeKnownLink(
 739                                                 $pageTitle,
 740                                                 new HtmlArmor( $this->message['hist'] ),
 741                                                 [ 'class' => 'mw-changeslist-history' ],
 742                                                 $query
 743                                         ) )->escaped();
 744                 return $retVal;
 745         }
 746
 747         /**
 748          * If enhanced RC is in use, this function takes the previously cached
 749          * RC lines, arranges them, and outputs the HTML
 750          *
 751          * @return string
 752          */
 753         protected function recentChangesBlock() {
 754                 if ( count( $this->rc_cache ) == 0 ) {
 755                         return '';
 756                 }
 757
 758                 $blockOut = '';
 759                 foreach ( $this->rc_cache as $block ) {
 760                         if ( count( $block ) < 2 ) {
 761                                 $blockOut .= $this->recentChangesBlockLine( array_shift( $block ) );
 762                         } else {
 763                                 $blockOut .= $this->recentChangesBlockGroup( $block );
 764                         }
 765                 }
 766
 767                 return '<div>' . $blockOut . '</div>';
 768         }
 769
 770         /**
 771          * Returns text for the end of RC
 772          * If enhanced RC is in use, returns pretty much all the text
 773          * @return string
 774          */
 775         public function endRecentChangesList() {
 776                 return $this->recentChangesBlock() . '</div>';
 777         }
 778 }