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                 if ( $this->lastdate === '' ) {
 106                         $this->lastdate = $date;
 107                 }
 108
 109                 $ret = '';
 110
 111                 # If it's a new day, flush the cache and update $this->lastdate
 112                 if ( $date !== $this->lastdate ) {
 113                         # Process current cache (uses $this->lastdate to generate a heading)
 114                         $ret = $this->recentChangesBlock();
 115                         $this->rc_cache = [];
 116                         $this->lastdate = $date;
 117                 }
 118
 119                 $cacheEntry = $this->cacheEntryFactory->newFromRecentChange( $rc, $watched );
 120                 $this->addCacheEntry( $cacheEntry );
 121
 122                 return $ret;
 123         }
 124
 125         /**
 126          * Put accumulated information into the cache, for later display.
 127          * Page moves go on their own line.
 128          *
 129          * @param RCCacheEntry $cacheEntry
 130          */
 131         protected function addCacheEntry( RCCacheEntry $cacheEntry ) {
 132                 $cacheGroupingKey = $this->makeCacheGroupingKey( $cacheEntry );
 133
 134                 if ( !isset( $this->rc_cache[$cacheGroupingKey] ) ) {
 135                         $this->rc_cache[$cacheGroupingKey] = [];
 136                 }
 137
 138                 array_push( $this->rc_cache[$cacheGroupingKey], $cacheEntry );
 139         }
 140
 141         /**
 142          * @todo use rc_source to group, if set; fallback to rc_type
 143          *
 144          * @param RCCacheEntry $cacheEntry
 145          *
 146          * @return string
 147          */
 148         protected function makeCacheGroupingKey( RCCacheEntry $cacheEntry ) {
 149                 $title = $cacheEntry->getTitle();
 150                 $cacheGroupingKey = $title->getPrefixedDBkey();
 151
 152                 $type = $cacheEntry->mAttribs['rc_type'];
 153
 154                 if ( $type == RC_LOG ) {
 155                         // Group by log type
 156                         $cacheGroupingKey = SpecialPage::getTitleFor(
 157                                 'Log',
 158                                 $cacheEntry->mAttribs['rc_log_type']
 159                         )->getPrefixedDBkey();
 160                 }
 161
 162                 return $cacheGroupingKey;
 163         }
 164
 165         /**
 166          * Enhanced RC group
 167          * @param RCCacheEntry[] $block
 168          * @return string
 169          * @throws DomainException
 170          */
 171         protected function recentChangesBlockGroup( $block ) {
 172                 $recentChangesFlags = $this->getConfig()->get( 'RecentChangesFlags' );
 173
 174                 # Add the namespace and title of the block as part of the class
 175                 $tableClasses = [ 'mw-collapsible', 'mw-collapsed', 'mw-enhanced-rc' ];
 176                 if ( $block[0]->mAttribs['rc_log_type'] ) {
 177                         # Log entry
 178                         $tableClasses[] = Sanitizer::escapeClass( 'mw-changeslist-log-'
 179                                 . $block[0]->mAttribs['rc_log_type'] );
 180                 } else {
 181                         $tableClasses[] = Sanitizer::escapeClass( 'mw-changeslist-ns'
 182                                 . $block[0]->mAttribs['rc_namespace'] . '-' . $block[0]->mAttribs['rc_title'] );
 183                 }
 184                 if ( $block[0]->watched
 185                         && $block[0]->mAttribs['rc_timestamp'] >= $block[0]->watched
 186                 ) {
 187                         $tableClasses[] = 'mw-changeslist-line-watched';
 188                 } else {
 189                         $tableClasses[] = 'mw-changeslist-line-not-watched';
 190                 }
 191
 192                 # Collate list of users
 193                 $userlinks = [];
 194                 # Other properties
 195                 $curId = 0;
 196                 # Some catalyst variables...
 197                 $namehidden = true;
 198                 $allLogs = true;
 199                 $RCShowChangedSize = $this->getConfig()->get( 'RCShowChangedSize' );
 200
 201                 # Default values for RC flags
 202                 $collectedRcFlags = [];
 203                 foreach ( $recentChangesFlags as $key => $value ) {
 204                         $flagGrouping = ( isset( $recentChangesFlags[$key]['grouping'] ) ?
 205                                         $recentChangesFlags[$key]['grouping'] : 'any' );
 206                         switch ( $flagGrouping ) {
 207                                 case 'all':
 208                                         $collectedRcFlags[$key] = true;
 209                                         break;
 210                                 case 'any':
 211                                         $collectedRcFlags[$key] = false;
 212                                         break;
 213                                 default:
 214                                         throw new DomainException( "Unknown grouping type \"{$flagGrouping}\"" );
 215                         }
 216                 }
 217                 foreach ( $block as $rcObj ) {
 218                         // If all log actions to this page were hidden, then don't
 219                         // give the name of the affected page for this block!
 220                         if ( !$this->isDeleted( $rcObj, LogPage::DELETED_ACTION ) ) {
 221                                 $namehidden = false;
 222                         }
 223                         $u = $rcObj->userlink;
 224                         if ( !isset( $userlinks[$u] ) ) {
 225                                 $userlinks[$u] = 0;
 226                         }
 227                         if ( $rcObj->mAttribs['rc_type'] != RC_LOG ) {
 228                                 $allLogs = false;
 229                         }
 230                         # Get the latest entry with a page_id and oldid
 231                         # since logs may not have these.
 232                         if ( !$curId && $rcObj->mAttribs['rc_cur_id'] ) {
 233                                 $curId = $rcObj->mAttribs['rc_cur_id'];
 234                         }
 235
 236                         $userlinks[$u]++;
 237                 }
 238
 239                 # Sort the list and convert to text
 240                 krsort( $userlinks );
 241                 asort( $userlinks );
 242                 $users = [];
 243                 foreach ( $userlinks as $userlink => $count ) {
 244                         $text = $userlink;
 245                         $text .= $this->getLanguage()->getDirMark();
 246                         if ( $count > 1 ) {
 247                                 $formattedCount = $this->msg( 'ntimes' )->numParams( $count )->escaped();
 248                                 $text .= ' ' . $this->msg( 'parentheses' )->rawParams( $formattedCount )->escaped();
 249                         }
 250                         array_push( $users, $text );
 251                 }
 252
 253                 # Article link
 254                 $articleLink = '';
 255                 $revDeletedMsg = false;
 256                 if ( $namehidden ) {
 257                         $revDeletedMsg = $this->msg( 'rev-deleted-event' )->escaped();
 258                 } elseif ( $allLogs ) {
 259                         $articleLink = $this->maybeWatchedLink( $block[0]->link, $block[0]->watched );
 260                 } else {
 261                         $articleLink = $this->getArticleLink( $block[0], $block[0]->unpatrolled, $block[0]->watched );
 262                 }
 263
 264                 $queryParams['curid'] = $curId;
 265
 266                 # Sub-entries
 267                 $lines = [];
 268                 foreach ( $block as $i => $rcObj ) {
 269                         $line = $this->getLineData( $block, $rcObj, $queryParams );
 270                         if ( !$line ) {
 271                                 // completely ignore this RC entry if we don't want to render it
 272                                 unset( $block[$i] );
 273                                 continue;
 274                         }
 275
 276                         // Roll up flags
 277                         foreach ( $line['recentChangesFlagsRaw'] as $key => $value ) {
 278                                 $flagGrouping = ( isset( $recentChangesFlags[$key]['grouping'] ) ?
 279                                         $recentChangesFlags[$key]['grouping'] : 'any' );
 280                                 switch ( $flagGrouping ) {
 281                                         case 'all':
 282                                                 if ( !$value ) {
 283                                                         $collectedRcFlags[$key] = false;
 284                                                 }
 285                                                 break;
 286                                         case 'any':
 287                                                 if ( $value ) {
 288                                                         $collectedRcFlags[$key] = true;
 289                                                 }
 290                                                 break;
 291                                         default:
 292                                                 throw new DomainException( "Unknown grouping type \"{$flagGrouping}\"" );
 293                                 }
 294                         }
 295
 296                         $lines[] = $line;
 297                 }
 298
 299                 // Further down are some assumptions that $block is a 0-indexed array
 300                 // with (count-1) as last key. Let's make sure it is.
 301                 $block = array_values( $block );
 302
 303                 if ( empty( $block ) || !$lines ) {
 304                         // if we can't show anything, don't display this block altogether
 305                         return '';
 306                 }
 307
 308                 $logText = $this->getLogText( $block, $queryParams, $allLogs,
 309                         $collectedRcFlags['newpage'], $namehidden
 310                 );
 311
 312                 # Character difference (does not apply if only log items)
 313                 $charDifference = false;
 314                 if ( $RCShowChangedSize && !$allLogs ) {
 315                         $last = 0;
 316                         $first = count( $block ) - 1;
 317                         # Some events (like logs and category changes) have an "empty" size, so we need to skip those...
 318                         while ( $last < $first && $block[$last]->mAttribs['rc_new_len'] === null ) {
 319                                 $last++;
 320                         }
 321                         while ( $last < $first && $block[$first]->mAttribs['rc_old_len'] === null ) {
 322                                 $first--;
 323                         }
 324                         # Get net change
 325                         $charDifference = $this->formatCharacterDifference( $block[$first], $block[$last] );
 326                 }
 327
 328                 $numberofWatchingusers = $this->numberofWatchingusers( $block[0]->numberofWatchingusers );
 329                 $usersList = $this->msg( 'brackets' )->rawParams(
 330                         implode( $this->message['semicolon-separator'], $users )
 331                 )->escaped();
 332
 333                 $templateParams = [
 334                         'articleLink' => $articleLink,
 335                         'charDifference' => $charDifference,
 336                         'collectedRcFlags' => $this->recentChangesFlags( $collectedRcFlags ),
 337                         'languageDirMark' => $this->getLanguage()->getDirMark(),
 338                         'lines' => $lines,
 339                         'logText' => $logText,
 340                         'numberofWatchingusers' => $numberofWatchingusers,
 341                         'rev-deleted-event' => $revDeletedMsg,
 342                         'tableClasses' => $tableClasses,
 343                         'timestamp' => $block[0]->timestamp,
 344                         'fullTimestamp' => $block[0]->getAttribute( 'rc_timestamp' ),
 345                         'users' => $usersList,
 346                 ];
 347
 348                 $this->rcCacheIndex++;
 349
 350                 return $this->templateParser->processTemplate(
 351                         'EnhancedChangesListGroup',
 352                         $templateParams
 353                 );
 354         }
 355
 356         /**
 357          * @param RCCacheEntry[] $block
 358          * @param RCCacheEntry $rcObj
 359          * @param array $queryParams
 360          * @return array
 361          * @throws Exception
 362          * @throws FatalError
 363          * @throws MWException
 364          */
 365         protected function getLineData( array $block, RCCacheEntry $rcObj, array $queryParams = [] ) {
 366                 $RCShowChangedSize = $this->getConfig()->get( 'RCShowChangedSize' );
 367
 368                 $type = $rcObj->mAttribs['rc_type'];
 369                 $data = [];
 370                 $lineParams = [];
 371
 372                 $classes = [ 'mw-enhanced-rc' ];
 373                 if ( $rcObj->watched
 374                         && $rcObj->mAttribs['rc_timestamp'] >= $rcObj->watched
 375                 ) {
 376                         $classes[] = 'mw-enhanced-watched';
 377                 }
 378                 $classes = array_merge( $classes, $this->getHTMLClassesForFilters( $rcObj ) );
 379
 380                 $separator = ' <span class="mw-changeslist-separator">. .</span> ';
 381
 382                 $data['recentChangesFlags'] = [
 383                         'newpage' => $type == RC_NEW,
 384                         'minor' => $rcObj->mAttribs['rc_minor'],
 385                         'unpatrolled' => $rcObj->unpatrolled,
 386                         'bot' => $rcObj->mAttribs['rc_bot'],
 387                 ];
 388
 389                 $params = $queryParams;
 390
 391                 if ( $rcObj->mAttribs['rc_this_oldid'] != 0 ) {
 392                         $params['oldid'] = $rcObj->mAttribs['rc_this_oldid'];
 393                 }
 394
 395                 # Log timestamp
 396                 if ( $type == RC_LOG ) {
 397                         $link = $rcObj->timestamp;
 398                         # Revision link
 399                 } elseif ( !ChangesList::userCan( $rcObj, Revision::DELETED_TEXT, $this->getUser() ) ) {
 400                         $link = '<span class="history-deleted">' . $rcObj->timestamp . '</span> ';
 401                 } else {
 402                         $link = $this->linkRenderer->makeKnownLink(
 403                                 $rcObj->getTitle(),
 404                                 new HtmlArmor( $rcObj->timestamp ),
 405                                 [],
 406                                 $params
 407                         );
 408                         if ( $this->isDeleted( $rcObj, Revision::DELETED_TEXT ) ) {
 409                                 $link = '<span class="history-deleted">' . $link . '</span> ';
 410                         }
 411                 }
 412                 $data['timestampLink'] = $link;
 413
 414                 $currentAndLastLinks = '';
 415                 if ( !$type == RC_LOG || $type == RC_NEW ) {
 416                         $currentAndLastLinks .= ' ' . $this->msg( 'parentheses' )->rawParams(
 417                                         $rcObj->curlink .
 418                                         $this->message['pipe-separator'] .
 419                                         $rcObj->lastlink
 420                                 )->escaped();
 421                 }
 422                 $data['currentAndLastLinks'] = $currentAndLastLinks;
 423                 $data['separatorAfterCurrentAndLastLinks'] = $separator;
 424
 425                 # Character diff
 426                 if ( $RCShowChangedSize ) {
 427                         $cd = $this->formatCharacterDifference( $rcObj );
 428                         if ( $cd !== '' ) {
 429                                 $data['characterDiff'] = $cd;
 430                                 $data['separatorAfterCharacterDiff'] = $separator;
 431                         }
 432                 }
 433
 434                 if ( $rcObj->mAttribs['rc_type'] == RC_LOG ) {
 435                         $data['logEntry'] = $this->insertLogEntry( $rcObj );
 436                 } elseif ( $this->isCategorizationWithoutRevision( $rcObj ) ) {
 437                         $data['comment'] = $this->insertComment( $rcObj );
 438                 } else {
 439                         # User links
 440                         $data['userLink'] = $rcObj->userlink;
 441                         $data['userTalkLink'] = $rcObj->usertalklink;
 442                         $data['comment'] = $this->insertComment( $rcObj );
 443                 }
 444
 445                 # Rollback
 446                 $data['rollback'] = $this->getRollback( $rcObj );
 447
 448                 # Tags
 449                 $data['tags'] = $this->getTags( $rcObj, $classes );
 450
 451                 $attribs = $this->getDataAttributes( $rcObj );
 452
 453                 // give the hook a chance to modify the data
 454                 $success = Hooks::run( 'EnhancedChangesListModifyLineData',
 455                         [ $this, &$data, $block, $rcObj, &$classes, &$attribs ] );
 456                 if ( !$success ) {
 457                         // skip entry if hook aborted it
 458                         return [];
 459                 }
 460                 $attribs = wfArrayFilterByKey( $attribs, [ Sanitizer::class, 'isReservedDataAttribute' ] );
 461
 462                 $lineParams['recentChangesFlagsRaw'] = [];
 463                 if ( isset( $data['recentChangesFlags'] ) ) {
 464                         $lineParams['recentChangesFlags'] = $this->recentChangesFlags( $data['recentChangesFlags'] );
 465                         # FIXME: This is used by logic, don't return it in the template params.
 466                         $lineParams['recentChangesFlagsRaw'] = $data['recentChangesFlags'];
 467                         unset( $data['recentChangesFlags'] );
 468                 }
 469
 470                 if ( isset( $data['timestampLink'] ) ) {
 471                         $lineParams['timestampLink'] = $data['timestampLink'];
 472                         unset( $data['timestampLink'] );
 473                 }
 474
 475                 $lineParams['classes'] = array_values( $classes );
 476                 $lineParams['attribs'] = Html::expandAttributes( $attribs );
 477
 478                 // everything else: makes it easier for extensions to add or remove data
 479                 $lineParams['data'] = array_values( $data );
 480
 481                 return $lineParams;
 482         }
 483
 484         /**
 485          * Generates amount of changes (linking to diff ) & link to history.
 486          *
 487          * @param array $block
 488          * @param array $queryParams
 489          * @param bool $allLogs
 490          * @param bool $isnew
 491          * @param bool $namehidden
 492          * @return string
 493          */
 494         protected function getLogText( $block, $queryParams, $allLogs, $isnew, $namehidden ) {
 495                 if ( empty( $block ) ) {
 496                         return '';
 497                 }
 498
 499                 # Changes message
 500                 static $nchanges = [];
 501                 static $sinceLastVisitMsg = [];
 502
 503                 $n = count( $block );
 504                 if ( !isset( $nchanges[$n] ) ) {
 505                         $nchanges[$n] = $this->msg( 'nchanges' )->numParams( $n )->escaped();
 506                 }
 507
 508                 $sinceLast = 0;
 509                 $unvisitedOldid = null;
 510                 /** @var $rcObj RCCacheEntry */
 511                 foreach ( $block as $rcObj ) {
 512                         // Same logic as below inside main foreach
 513                         if ( $rcObj->watched && $rcObj->mAttribs['rc_timestamp'] >= $rcObj->watched ) {
 514                                 $sinceLast++;
 515                                 $unvisitedOldid = $rcObj->mAttribs['rc_last_oldid'];
 516                         }
 517                 }
 518                 if ( !isset( $sinceLastVisitMsg[$sinceLast] ) ) {
 519                         $sinceLastVisitMsg[$sinceLast] =
 520                                 $this->msg( 'enhancedrc-since-last-visit' )->numParams( $sinceLast )->escaped();
 521                 }
 522
 523                 $currentRevision = 0;
 524                 foreach ( $block as $rcObj ) {
 525                         if ( !$currentRevision ) {
 526                                 $currentRevision = $rcObj->mAttribs['rc_this_oldid'];
 527                         }
 528                 }
 529
 530                 # Total change link
 531                 $links = [];
 532                 /** @var $block0 RecentChange */
 533                 $block0 = $block[0];
 534                 $last = $block[count( $block ) - 1];
 535                 if ( !$allLogs ) {
 536                         if ( !ChangesList::userCan( $rcObj, Revision::DELETED_TEXT, $this->getUser() ) ||
 537                                 $isnew ||
 538                                 $rcObj->mAttribs['rc_type'] == RC_CATEGORIZE
 539                         ) {
 540                                 $links['total-changes'] = $nchanges[$n];
 541                         } else {
 542                                 $links['total-changes'] = $this->linkRenderer->makeKnownLink(
 543                                         $block0->getTitle(),
 544                                         new HtmlArmor( $nchanges[$n] ),
 545                                         [ 'class' => 'mw-changeslist-groupdiff' ],
 546                                         $queryParams + [
 547                                                 'diff' => $currentRevision,
 548                                                 'oldid' => $last->mAttribs['rc_last_oldid'],
 549                                         ]
 550                                 );
 551                                 if ( $sinceLast > 0 && $sinceLast < $n ) {
 552                                         $links['total-changes-since-last'] = $this->linkRenderer->makeKnownLink(
 553                                                         $block0->getTitle(),
 554                                                         new HtmlArmor( $sinceLastVisitMsg[$sinceLast] ),
 555                                                         [ 'class' => 'mw-changeslist-groupdiff' ],
 556                                                         $queryParams + [
 557                                                                 'diff' => $currentRevision,
 558                                                                 'oldid' => $unvisitedOldid,
 559                                                         ]
 560                                                 );
 561                                 }
 562                         }
 563                 }
 564
 565                 # History
 566                 if ( $allLogs || $rcObj->mAttribs['rc_type'] == RC_CATEGORIZE ) {
 567                         // don't show history link for logs
 568                 } elseif ( $namehidden || !$block0->getTitle()->exists() ) {
 569                         $links['history'] = $this->message['enhancedrc-history'];
 570                 } else {
 571                         $params = $queryParams;
 572                         $params['action'] = 'history';
 573
 574                         $links['history'] = $this->linkRenderer->makeKnownLink(
 575                                         $block0->getTitle(),
 576                                         new HtmlArmor( $this->message['enhancedrc-history'] ),
 577                                         [ 'class' => 'mw-changeslist-history' ],
 578                                         $params
 579                                 );
 580                 }
 581
 582                 # Allow others to alter, remove or add to these links
 583                 Hooks::run( 'EnhancedChangesList::getLogText',
 584                         [ $this, &$links, $block ] );
 585
 586                 if ( !$links ) {
 587                         return '';
 588                 }
 589
 590                 $logtext = implode( $this->message['pipe-separator'], $links );
 591                 $logtext = $this->msg( 'parentheses' )->rawParams( $logtext )->escaped();
 592                 return ' ' . $logtext;
 593         }
 594
 595         /**
 596          * Enhanced RC ungrouped line.
 597          *
 598          * @param RecentChange|RCCacheEntry $rcObj
 599          * @return string A HTML formatted line (generated using $r)
 600          */
 601         protected function recentChangesBlockLine( $rcObj ) {
 602                 $data = [];
 603
 604                 $query['curid'] = $rcObj->mAttribs['rc_cur_id'];
 605
 606                 $type = $rcObj->mAttribs['rc_type'];
 607                 $logType = $rcObj->mAttribs['rc_log_type'];
 608                 $classes = $this->getHTMLClasses( $rcObj, $rcObj->watched );
 609                 $classes[] = 'mw-enhanced-rc';
 610
 611                 if ( $logType ) {
 612                         # Log entry
 613                         $classes[] = Sanitizer::escapeClass( 'mw-changeslist-log-' . $logType );
 614                 } else {
 615                         $classes[] = Sanitizer::escapeClass( 'mw-changeslist-ns' .
 616                                 $rcObj->mAttribs['rc_namespace'] . '-' . $rcObj->mAttribs['rc_title'] );
 617                 }
 618
 619                 # Flag and Timestamp
 620                 $data['recentChangesFlags'] = [
 621                         'newpage' => $type == RC_NEW,
 622                         'minor' => $rcObj->mAttribs['rc_minor'],
 623                         'unpatrolled' => $rcObj->unpatrolled,
 624                         'bot' => $rcObj->mAttribs['rc_bot'],
 625                 ];
 626                 // timestamp is not really a link here, but is called timestampLink
 627                 // for consistency with EnhancedChangesListModifyLineData
 628                 $data['timestampLink'] = $rcObj->timestamp;
 629
 630                 # Article or log link
 631                 if ( $logType ) {
 632                         $logPage = new LogPage( $logType );
 633                         $logTitle = SpecialPage::getTitleFor( 'Log', $logType );
 634                         $logName = $logPage->getName()->text();
 635                         $data['logLink'] = $this->msg( 'parentheses' )
 636                                 ->rawParams(
 637                                         $this->linkRenderer->makeKnownLink( $logTitle, $logName )
 638                                 )->escaped();
 639                 } else {
 640                         $data['articleLink'] = $this->getArticleLink( $rcObj, $rcObj->unpatrolled, $rcObj->watched );
 641                 }
 642
 643                 # Diff and hist links
 644                 if ( $type != RC_LOG && $type != RC_CATEGORIZE ) {
 645                         $query['action'] = 'history';
 646                         $data['historyLink'] = $this->getDiffHistLinks( $rcObj, $query );
 647                 }
 648                 $data['separatorAfterLinks'] = ' <span class="mw-changeslist-separator">. .</span> ';
 649
 650                 # Character diff
 651                 if ( $this->getConfig()->get( 'RCShowChangedSize' ) ) {
 652                         $cd = $this->formatCharacterDifference( $rcObj );
 653                         if ( $cd !== '' ) {
 654                                 $data['characterDiff'] = $cd;
 655                                 $data['separatorAftercharacterDiff'] = ' <span class="mw-changeslist-separator">. .</span> ';
 656                         }
 657                 }
 658
 659                 if ( $type == RC_LOG ) {
 660                         $data['logEntry'] = $this->insertLogEntry( $rcObj );
 661                 } elseif ( $this->isCategorizationWithoutRevision( $rcObj ) ) {
 662                         $data['comment'] = $this->insertComment( $rcObj );
 663                 } else {
 664                         $data['userLink'] = $rcObj->userlink;
 665                         $data['userTalkLink'] = $rcObj->usertalklink;
 666                         $data['comment'] = $this->insertComment( $rcObj );
 667                         if ( $type == RC_CATEGORIZE ) {
 668                                 $data['historyLink'] = $this->getDiffHistLinks( $rcObj, $query );
 669                         }
 670                         $data['rollback'] = $this->getRollback( $rcObj );
 671                 }
 672
 673                 # Tags
 674                 $data['tags'] = $this->getTags( $rcObj, $classes );
 675
 676                 # Show how many people are watching this if enabled
 677                 $data['watchingUsers'] = $this->numberofWatchingusers( $rcObj->numberofWatchingusers );
 678
 679                 $data['attribs'] = array_merge( $this->getDataAttributes( $rcObj ), [ 'class' => $classes ] );
 680
 681                 // give the hook a chance to modify the data
 682                 $success = Hooks::run( 'EnhancedChangesListModifyBlockLineData',
 683                         [ $this, &$data, $rcObj ] );
 684                 if ( !$success ) {
 685                         // skip entry if hook aborted it
 686                         return '';
 687                 }
 688                 $attribs = $data['attribs'];
 689                 unset( $data['attribs'] );
 690                 $attribs = wfArrayFilterByKey( $attribs, function ( $key ) {
 691                         return $key === 'class' || Sanitizer::isReservedDataAttribute( $key );
 692                 } );
 693
 694                 $line = Html::openElement( 'table', $attribs ) . Html::openElement( 'tr' );
 695                 $line .= '<td class="mw-enhanced-rc"><span class="mw-enhancedchanges-arrow-space"></span>';
 696
 697                 if ( isset( $data['recentChangesFlags'] ) ) {
 698                         $line .= $this->recentChangesFlags( $data['recentChangesFlags'] );
 699                         unset( $data['recentChangesFlags'] );
 700                 }
 701
 702                 if ( isset( $data['timestampLink'] ) ) {
 703                         $line .= '&#160;' . $data['timestampLink'];
 704                         unset( $data['timestampLink'] );
 705                 }
 706                 $line .= '&#160;</td><td>';
 707
 708                 // everything else: makes it easier for extensions to add or remove data
 709                 $line .= implode( '', $data );
 710
 711                 $line .= "</td></tr></table>\n";
 712
 713                 return $line;
 714         }
 715
 716         /**
 717          * Returns value to be used in 'historyLink' element of $data param in
 718          * EnhancedChangesListModifyBlockLineData hook.
 719          *
 720          * @since 1.27
 721          *
 722          * @param RCCacheEntry $rc
 723          * @param array $query array of key/value pairs to append as a query string
 724          * @return string HTML
 725          */
 726         public function getDiffHistLinks( RCCacheEntry $rc, array $query ) {
 727                 $pageTitle = $rc->getTitle();
 728                 if ( $rc->getAttribute( 'rc_type' ) == RC_CATEGORIZE ) {
 729                         // For categorizations we must swap the category title with the page title!
 730                         $pageTitle = Title::newFromID( $rc->getAttribute( 'rc_cur_id' ) );
 731                         if ( !$pageTitle ) {
 732                                 // The page has been deleted, but the RC entry
 733                                 // deletion job has not run yet. Just skip.
 734                                 return '';
 735                         }
 736                 }
 737
 738                 $retVal = ' ' . $this->msg( 'parentheses' )
 739                                 ->rawParams( $rc->difflink . $this->message['pipe-separator']
 740                                         . $this->linkRenderer->makeKnownLink(
 741                                                 $pageTitle,
 742                                                 new HtmlArmor( $this->message['hist'] ),
 743                                                 [ 'class' => 'mw-changeslist-history' ],
 744                                                 $query
 745                                         ) )->escaped();
 746                 return $retVal;
 747         }
 748
 749         /**
 750          * If enhanced RC is in use, this function takes the previously cached
 751          * RC lines, arranges them, and outputs the HTML
 752          *
 753          * @return string
 754          */
 755         protected function recentChangesBlock() {
 756                 if ( count( $this->rc_cache ) == 0 ) {
 757                         return '';
 758                 }
 759
 760                 $blockOut = '';
 761                 foreach ( $this->rc_cache as $block ) {
 762                         if ( count( $block ) < 2 ) {
 763                                 $blockOut .= $this->recentChangesBlockLine( array_shift( $block ) );
 764                         } else {
 765                                 $blockOut .= $this->recentChangesBlockGroup( $block );
 766                         }
 767                 }
 768
 769                 if ( $blockOut === '' ) {
 770                         return '';
 771                 }
 772                 // $this->lastdate is kept up to date by recentChangesLine()
 773                 return Xml::element( 'h4', null, $this->lastdate ) . "\n<div>" . $blockOut . '</div>';
 774         }
 775
 776         /**
 777          * Returns text for the end of RC
 778          * If enhanced RC is in use, returns pretty much all the text
 779          * @return string
 780          */
 781         public function endRecentChangesList() {
 782                 return $this->recentChangesBlock() . '</div>';
 783         }
 784 }