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