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', 'mw-changeslist-line' ];
 176                 if ( $block[0]->mAttribs['rc_log_type'] ) {
 177                         # Log entry
 178                         $tableClasses[] = 'mw-changeslist-log';
 179                         $tableClasses[] = Sanitizer::escapeClass( 'mw-changeslist-log-'
 180                                 . $block[0]->mAttribs['rc_log_type'] );
 181                 } else {
 182                         $tableClasses[] = 'mw-changeslist-edit';
 183                         $tableClasses[] = Sanitizer::escapeClass( 'mw-changeslist-ns'
 184                                 . $block[0]->mAttribs['rc_namespace'] . '-' . $block[0]->mAttribs['rc_title'] );
 185                 }
 186                 if ( $block[0]->watched
 187                         && $block[0]->mAttribs['rc_timestamp'] >= $block[0]->watched
 188                 ) {
 189                         $tableClasses[] = 'mw-changeslist-line-watched';
 190                 } else {
 191                         $tableClasses[] = 'mw-changeslist-line-not-watched';
 192                 }
 193
 194                 # Collate list of users
 195                 $userlinks = [];
 196                 # Other properties
 197                 $curId = 0;
 198                 # Some catalyst variables...
 199                 $namehidden = true;
 200                 $allLogs = true;
 201                 $RCShowChangedSize = $this->getConfig()->get( 'RCShowChangedSize' );
 202
 203                 # Default values for RC flags
 204                 $collectedRcFlags = [];
 205                 foreach ( $recentChangesFlags as $key => $value ) {
 206                         $flagGrouping = ( isset( $recentChangesFlags[$key]['grouping'] ) ?
 207                                         $recentChangesFlags[$key]['grouping'] : 'any' );
 208                         switch ( $flagGrouping ) {
 209                                 case 'all':
 210                                         $collectedRcFlags[$key] = true;
 211                                         break;
 212                                 case 'any':
 213                                         $collectedRcFlags[$key] = false;
 214                                         break;
 215                                 default:
 216                                         throw new DomainException( "Unknown grouping type \"{$flagGrouping}\"" );
 217                         }
 218                 }
 219                 foreach ( $block as $rcObj ) {
 220                         // If all log actions to this page were hidden, then don't
 221                         // give the name of the affected page for this block!
 222                         if ( !$this->isDeleted( $rcObj, LogPage::DELETED_ACTION ) ) {
 223                                 $namehidden = false;
 224                         }
 225                         $u = $rcObj->userlink;
 226                         if ( !isset( $userlinks[$u] ) ) {
 227                                 $userlinks[$u] = 0;
 228                         }
 229                         if ( $rcObj->mAttribs['rc_type'] != RC_LOG ) {
 230                                 $allLogs = false;
 231                         }
 232                         # Get the latest entry with a page_id and oldid
 233                         # since logs may not have these.
 234                         if ( !$curId && $rcObj->mAttribs['rc_cur_id'] ) {
 235                                 $curId = $rcObj->mAttribs['rc_cur_id'];
 236                         }
 237
 238                         $userlinks[$u]++;
 239                 }
 240
 241                 # Sort the list and convert to text
 242                 krsort( $userlinks );
 243                 asort( $userlinks );
 244                 $users = [];
 245                 foreach ( $userlinks as $userlink => $count ) {
 246                         $text = $userlink;
 247                         $text .= $this->getLanguage()->getDirMark();
 248                         if ( $count > 1 ) {
 249                                 $formattedCount = $this->msg( 'ntimes' )->numParams( $count )->escaped();
 250                                 $text .= ' ' . $this->msg( 'parentheses' )->rawParams( $formattedCount )->escaped();
 251                         }
 252                         array_push( $users, $text );
 253                 }
 254
 255                 # Article link
 256                 $articleLink = '';
 257                 $revDeletedMsg = false;
 258                 if ( $namehidden ) {
 259                         $revDeletedMsg = $this->msg( 'rev-deleted-event' )->escaped();
 260                 } elseif ( $allLogs ) {
 261                         $articleLink = $this->maybeWatchedLink( $block[0]->link, $block[0]->watched );
 262                 } else {
 263                         $articleLink = $this->getArticleLink( $block[0], $block[0]->unpatrolled, $block[0]->watched );
 264                 }
 265
 266                 $queryParams['curid'] = $curId;
 267
 268                 # Sub-entries
 269                 $lines = [];
 270                 foreach ( $block as $i => $rcObj ) {
 271                         $line = $this->getLineData( $block, $rcObj, $queryParams );
 272                         if ( !$line ) {
 273                                 // completely ignore this RC entry if we don't want to render it
 274                                 unset( $block[$i] );
 275                                 continue;
 276                         }
 277
 278                         // Roll up flags
 279                         foreach ( $line['recentChangesFlagsRaw'] as $key => $value ) {
 280                                 $flagGrouping = ( isset( $recentChangesFlags[$key]['grouping'] ) ?
 281                                         $recentChangesFlags[$key]['grouping'] : 'any' );
 282                                 switch ( $flagGrouping ) {
 283                                         case 'all':
 284                                                 if ( !$value ) {
 285                                                         $collectedRcFlags[$key] = false;
 286                                                 }
 287                                                 break;
 288                                         case 'any':
 289                                                 if ( $value ) {
 290                                                         $collectedRcFlags[$key] = true;
 291                                                 }
 292                                                 break;
 293                                         default:
 294                                                 throw new DomainException( "Unknown grouping type \"{$flagGrouping}\"" );
 295                                 }
 296                         }
 297
 298                         $lines[] = $line;
 299                 }
 300
 301                 // Further down are some assumptions that $block is a 0-indexed array
 302                 // with (count-1) as last key. Let's make sure it is.
 303                 $block = array_values( $block );
 304
 305                 if ( empty( $block ) || !$lines ) {
 306                         // if we can't show anything, don't display this block altogether
 307                         return '';
 308                 }
 309
 310                 $logText = $this->getLogText( $block, $queryParams, $allLogs,
 311                         $collectedRcFlags['newpage'], $namehidden
 312                 );
 313
 314                 # Character difference (does not apply if only log items)
 315                 $charDifference = false;
 316                 if ( $RCShowChangedSize && !$allLogs ) {
 317                         $last = 0;
 318                         $first = count( $block ) - 1;
 319                         # Some events (like logs and category changes) have an "empty" size, so we need to skip those...
 320                         while ( $last < $first && $block[$last]->mAttribs['rc_new_len'] === null ) {
 321                                 $last++;
 322                         }
 323                         while ( $last < $first && $block[$first]->mAttribs['rc_old_len'] === null ) {
 324                                 $first--;
 325                         }
 326                         # Get net change
 327                         $charDifference = $this->formatCharacterDifference( $block[$first], $block[$last] );
 328                 }
 329
 330                 $numberofWatchingusers = $this->numberofWatchingusers( $block[0]->numberofWatchingusers );
 331                 $usersList = $this->msg( 'brackets' )->rawParams(
 332                         implode( $this->message['semicolon-separator'], $users )
 333                 )->escaped();
 334
 335                 $prefix = '';
 336                 if ( is_callable( $this->changeLinePrefixer ) ) {
 337                         $prefix = call_user_func( $this->changeLinePrefixer, $block[0], $this, true );
 338                 }
 339
 340                 $templateParams = [
 341                         'articleLink' => $articleLink,
 342                         'charDifference' => $charDifference,
 343                         'collectedRcFlags' => $this->recentChangesFlags( $collectedRcFlags ),
 344                         'languageDirMark' => $this->getLanguage()->getDirMark(),
 345                         'lines' => $lines,
 346                         'logText' => $logText,
 347                         'numberofWatchingusers' => $numberofWatchingusers,
 348                         'prefix' => $prefix,
 349                         'rev-deleted-event' => $revDeletedMsg,
 350                         'tableClasses' => $tableClasses,
 351                         'timestamp' => $block[0]->timestamp,
 352                         'fullTimestamp' => $block[0]->getAttribute( 'rc_timestamp' ),
 353                         'users' => $usersList,
 354                 ];
 355
 356                 $this->rcCacheIndex++;
 357
 358                 return $this->templateParser->processTemplate(
 359                         'EnhancedChangesListGroup',
 360                         $templateParams
 361                 );
 362         }
 363
 364         /**
 365          * @param RCCacheEntry[] $block
 366          * @param RCCacheEntry $rcObj
 367          * @param array $queryParams
 368          * @return array
 369          * @throws Exception
 370          * @throws FatalError
 371          * @throws MWException
 372          */
 373         protected function getLineData( array $block, RCCacheEntry $rcObj, array $queryParams = [] ) {
 374                 $RCShowChangedSize = $this->getConfig()->get( 'RCShowChangedSize' );
 375
 376                 $type = $rcObj->mAttribs['rc_type'];
 377                 $data = [];
 378                 $lineParams = [ 'targetTitle' => $rcObj->getTitle() ];
 379
 380                 $classes = [ 'mw-enhanced-rc' ];
 381                 if ( $rcObj->watched
 382                         && $rcObj->mAttribs['rc_timestamp'] >= $rcObj->watched
 383                 ) {
 384                         $classes[] = 'mw-enhanced-watched';
 385                 }
 386                 $classes = array_merge( $classes, $this->getHTMLClasses( $rcObj, $rcObj->watched ) );
 387
 388                 $separator = ' <span class="mw-changeslist-separator">. .</span> ';
 389
 390                 $data['recentChangesFlags'] = [
 391                         'newpage' => $type == RC_NEW,
 392                         'minor' => $rcObj->mAttribs['rc_minor'],
 393                         'unpatrolled' => $rcObj->unpatrolled,
 394                         'bot' => $rcObj->mAttribs['rc_bot'],
 395                 ];
 396
 397                 $params = $queryParams;
 398
 399                 if ( $rcObj->mAttribs['rc_this_oldid'] != 0 ) {
 400                         $params['oldid'] = $rcObj->mAttribs['rc_this_oldid'];
 401                 }
 402
 403                 # Log timestamp
 404                 if ( $type == RC_LOG ) {
 405                         $link = $rcObj->timestamp;
 406                         # Revision link
 407                 } elseif ( !ChangesList::userCan( $rcObj, Revision::DELETED_TEXT, $this->getUser() ) ) {
 408                         $link = '<span class="history-deleted">' . $rcObj->timestamp . '</span> ';
 409                 } else {
 410                         $link = $this->linkRenderer->makeKnownLink(
 411                                 $rcObj->getTitle(),
 412                                 new HtmlArmor( $rcObj->timestamp ),
 413                                 [],
 414                                 $params
 415                         );
 416                         if ( $this->isDeleted( $rcObj, Revision::DELETED_TEXT ) ) {
 417                                 $link = '<span class="history-deleted">' . $link . '</span> ';
 418                         }
 419                 }
 420                 $data['timestampLink'] = $link;
 421
 422                 $currentAndLastLinks = '';
 423                 if ( !$type == RC_LOG || $type == RC_NEW ) {
 424                         $currentAndLastLinks .= ' ' . $this->msg( 'parentheses' )->rawParams(
 425                                         $rcObj->curlink .
 426                                         $this->message['pipe-separator'] .
 427                                         $rcObj->lastlink
 428                                 )->escaped();
 429                 }
 430                 $data['currentAndLastLinks'] = $currentAndLastLinks;
 431                 $data['separatorAfterCurrentAndLastLinks'] = $separator;
 432
 433                 # Character diff
 434                 if ( $RCShowChangedSize ) {
 435                         $cd = $this->formatCharacterDifference( $rcObj );
 436                         if ( $cd !== '' ) {
 437                                 $data['characterDiff'] = $cd;
 438                                 $data['separatorAfterCharacterDiff'] = $separator;
 439                         }
 440                 }
 441
 442                 if ( $rcObj->mAttribs['rc_type'] == RC_LOG ) {
 443                         $data['logEntry'] = $this->insertLogEntry( $rcObj );
 444                 } elseif ( $this->isCategorizationWithoutRevision( $rcObj ) ) {
 445                         $data['comment'] = $this->insertComment( $rcObj );
 446                 } else {
 447                         # User links
 448                         $data['userLink'] = $rcObj->userlink;
 449                         $data['userTalkLink'] = $rcObj->usertalklink;
 450                         $data['comment'] = $this->insertComment( $rcObj );
 451                 }
 452
 453                 # Rollback
 454                 $data['rollback'] = $this->getRollback( $rcObj );
 455
 456                 # Tags
 457                 $data['tags'] = $this->getTags( $rcObj, $classes );
 458
 459                 $attribs = $this->getDataAttributes( $rcObj );
 460
 461                 // give the hook a chance to modify the data
 462                 $success = Hooks::run( 'EnhancedChangesListModifyLineData',
 463                         [ $this, &$data, $block, $rcObj, &$classes, &$attribs ] );
 464                 if ( !$success ) {
 465                         // skip entry if hook aborted it
 466                         return [];
 467                 }
 468                 $attribs = wfArrayFilterByKey( $attribs, [ Sanitizer::class, 'isReservedDataAttribute' ] );
 469
 470                 $lineParams['recentChangesFlagsRaw'] = [];
 471                 if ( isset( $data['recentChangesFlags'] ) ) {
 472                         $lineParams['recentChangesFlags'] = $this->recentChangesFlags( $data['recentChangesFlags'] );
 473                         # FIXME: This is used by logic, don't return it in the template params.
 474                         $lineParams['recentChangesFlagsRaw'] = $data['recentChangesFlags'];
 475                         unset( $data['recentChangesFlags'] );
 476                 }
 477
 478                 if ( isset( $data['timestampLink'] ) ) {
 479                         $lineParams['timestampLink'] = $data['timestampLink'];
 480                         unset( $data['timestampLink'] );
 481                 }
 482
 483                 $lineParams['classes'] = array_values( $classes );
 484                 $lineParams['attribs'] = Html::expandAttributes( $attribs );
 485
 486                 // everything else: makes it easier for extensions to add or remove data
 487                 $lineParams['data'] = array_values( $data );
 488
 489                 return $lineParams;
 490         }
 491
 492         /**
 493          * Generates amount of changes (linking to diff ) & link to history.
 494          *
 495          * @param array $block
 496          * @param array $queryParams
 497          * @param bool $allLogs
 498          * @param bool $isnew
 499          * @param bool $namehidden
 500          * @return string
 501          */
 502         protected function getLogText( $block, $queryParams, $allLogs, $isnew, $namehidden ) {
 503                 if ( empty( $block ) ) {
 504                         return '';
 505                 }
 506
 507                 # Changes message
 508                 static $nchanges = [];
 509                 static $sinceLastVisitMsg = [];
 510
 511                 $n = count( $block );
 512                 if ( !isset( $nchanges[$n] ) ) {
 513                         $nchanges[$n] = $this->msg( 'nchanges' )->numParams( $n )->escaped();
 514                 }
 515
 516                 $sinceLast = 0;
 517                 $unvisitedOldid = null;
 518                 /** @var RCCacheEntry $rcObj */
 519                 foreach ( $block as $rcObj ) {
 520                         // Same logic as below inside main foreach
 521                         if ( $rcObj->watched && $rcObj->mAttribs['rc_timestamp'] >= $rcObj->watched ) {
 522                                 $sinceLast++;
 523                                 $unvisitedOldid = $rcObj->mAttribs['rc_last_oldid'];
 524                         }
 525                 }
 526                 if ( !isset( $sinceLastVisitMsg[$sinceLast] ) ) {
 527                         $sinceLastVisitMsg[$sinceLast] =
 528                                 $this->msg( 'enhancedrc-since-last-visit' )->numParams( $sinceLast )->escaped();
 529                 }
 530
 531                 $currentRevision = 0;
 532                 foreach ( $block as $rcObj ) {
 533                         if ( !$currentRevision ) {
 534                                 $currentRevision = $rcObj->mAttribs['rc_this_oldid'];
 535                         }
 536                 }
 537
 538                 # Total change link
 539                 $links = [];
 540                 /** @var RecentChange $block0 */
 541                 $block0 = $block[0];
 542                 $last = $block[count( $block ) - 1];
 543                 if ( !$allLogs ) {
 544                         if ( !ChangesList::userCan( $rcObj, Revision::DELETED_TEXT, $this->getUser() ) ||
 545                                 $isnew ||
 546                                 $rcObj->mAttribs['rc_type'] == RC_CATEGORIZE
 547                         ) {
 548                                 $links['total-changes'] = $nchanges[$n];
 549                         } else {
 550                                 $links['total-changes'] = $this->linkRenderer->makeKnownLink(
 551                                         $block0->getTitle(),
 552                                         new HtmlArmor( $nchanges[$n] ),
 553                                         [ 'class' => 'mw-changeslist-groupdiff' ],
 554                                         $queryParams + [
 555                                                 'diff' => $currentRevision,
 556                                                 'oldid' => $last->mAttribs['rc_last_oldid'],
 557                                         ]
 558                                 );
 559                                 if ( $sinceLast > 0 && $sinceLast < $n ) {
 560                                         $links['total-changes-since-last'] = $this->linkRenderer->makeKnownLink(
 561                                                         $block0->getTitle(),
 562                                                         new HtmlArmor( $sinceLastVisitMsg[$sinceLast] ),
 563                                                         [ 'class' => 'mw-changeslist-groupdiff' ],
 564                                                         $queryParams + [
 565                                                                 'diff' => $currentRevision,
 566                                                                 'oldid' => $unvisitedOldid,
 567                                                         ]
 568                                                 );
 569                                 }
 570                         }
 571                 }
 572
 573                 # History
 574                 if ( $allLogs || $rcObj->mAttribs['rc_type'] == RC_CATEGORIZE ) {
 575                         // don't show history link for logs
 576                 } elseif ( $namehidden || !$block0->getTitle()->exists() ) {
 577                         $links['history'] = $this->message['enhancedrc-history'];
 578                 } else {
 579                         $params = $queryParams;
 580                         $params['action'] = 'history';
 581
 582                         $links['history'] = $this->linkRenderer->makeKnownLink(
 583                                         $block0->getTitle(),
 584                                         new HtmlArmor( $this->message['enhancedrc-history'] ),
 585                                         [ 'class' => 'mw-changeslist-history' ],
 586                                         $params
 587                                 );
 588                 }
 589
 590                 # Allow others to alter, remove or add to these links
 591                 Hooks::run( 'EnhancedChangesList::getLogText',
 592                         [ $this, &$links, $block ] );
 593
 594                 if ( !$links ) {
 595                         return '';
 596                 }
 597
 598                 $logtext = implode( $this->message['pipe-separator'], $links );
 599                 $logtext = $this->msg( 'parentheses' )->rawParams( $logtext )->escaped();
 600                 return ' ' . $logtext;
 601         }
 602
 603         /**
 604          * Enhanced RC ungrouped line.
 605          *
 606          * @param RecentChange|RCCacheEntry $rcObj
 607          * @return string A HTML formatted line (generated using $r)
 608          */
 609         protected function recentChangesBlockLine( $rcObj ) {
 610                 $data = [];
 611
 612                 $query['curid'] = $rcObj->mAttribs['rc_cur_id'];
 613
 614                 $type = $rcObj->mAttribs['rc_type'];
 615                 $logType = $rcObj->mAttribs['rc_log_type'];
 616                 $classes = $this->getHTMLClasses( $rcObj, $rcObj->watched );
 617                 $classes[] = 'mw-enhanced-rc';
 618
 619                 if ( $logType ) {
 620                         # Log entry
 621                         $classes[] = 'mw-changeslist-log';
 622                         $classes[] = Sanitizer::escapeClass( 'mw-changeslist-log-' . $logType );
 623                 } else {
 624                         $classes[] = 'mw-changeslist-edit';
 625                         $classes[] = Sanitizer::escapeClass( 'mw-changeslist-ns' .
 626                                 $rcObj->mAttribs['rc_namespace'] . '-' . $rcObj->mAttribs['rc_title'] );
 627                 }
 628
 629                 # Flag and Timestamp
 630                 $data['recentChangesFlags'] = [
 631                         'newpage' => $type == RC_NEW,
 632                         'minor' => $rcObj->mAttribs['rc_minor'],
 633                         'unpatrolled' => $rcObj->unpatrolled,
 634                         'bot' => $rcObj->mAttribs['rc_bot'],
 635                 ];
 636                 // timestamp is not really a link here, but is called timestampLink
 637                 // for consistency with EnhancedChangesListModifyLineData
 638                 $data['timestampLink'] = $rcObj->timestamp;
 639
 640                 # Article or log link
 641                 if ( $logType ) {
 642                         $logPage = new LogPage( $logType );
 643                         $logTitle = SpecialPage::getTitleFor( 'Log', $logType );
 644                         $logName = $logPage->getName()->text();
 645                         $data['logLink'] = $this->msg( 'parentheses' )
 646                                 ->rawParams(
 647                                         $this->linkRenderer->makeKnownLink( $logTitle, $logName )
 648                                 )->escaped();
 649                 } else {
 650                         $data['articleLink'] = $this->getArticleLink( $rcObj, $rcObj->unpatrolled, $rcObj->watched );
 651                 }
 652
 653                 # Diff and hist links
 654                 if ( $type != RC_LOG && $type != RC_CATEGORIZE ) {
 655                         $query['action'] = 'history';
 656                         $data['historyLink'] = $this->getDiffHistLinks( $rcObj, $query );
 657                 }
 658                 $data['separatorAfterLinks'] = ' <span class="mw-changeslist-separator">. .</span> ';
 659
 660                 # Character diff
 661                 if ( $this->getConfig()->get( 'RCShowChangedSize' ) ) {
 662                         $cd = $this->formatCharacterDifference( $rcObj );
 663                         if ( $cd !== '' ) {
 664                                 $data['characterDiff'] = $cd;
 665                                 $data['separatorAftercharacterDiff'] = ' <span class="mw-changeslist-separator">. .</span> ';
 666                         }
 667                 }
 668
 669                 if ( $type == RC_LOG ) {
 670                         $data['logEntry'] = $this->insertLogEntry( $rcObj );
 671                 } elseif ( $this->isCategorizationWithoutRevision( $rcObj ) ) {
 672                         $data['comment'] = $this->insertComment( $rcObj );
 673                 } else {
 674                         $data['userLink'] = $rcObj->userlink;
 675                         $data['userTalkLink'] = $rcObj->usertalklink;
 676                         $data['comment'] = $this->insertComment( $rcObj );
 677                         if ( $type == RC_CATEGORIZE ) {
 678                                 $data['historyLink'] = $this->getDiffHistLinks( $rcObj, $query );
 679                         }
 680                         $data['rollback'] = $this->getRollback( $rcObj );
 681                 }
 682
 683                 # Tags
 684                 $data['tags'] = $this->getTags( $rcObj, $classes );
 685
 686                 # Show how many people are watching this if enabled
 687                 $data['watchingUsers'] = $this->numberofWatchingusers( $rcObj->numberofWatchingusers );
 688
 689                 $data['attribs'] = array_merge( $this->getDataAttributes( $rcObj ), [ 'class' => $classes ] );
 690
 691                 // give the hook a chance to modify the data
 692                 $success = Hooks::run( 'EnhancedChangesListModifyBlockLineData',
 693                         [ $this, &$data, $rcObj ] );
 694                 if ( !$success ) {
 695                         // skip entry if hook aborted it
 696                         return '';
 697                 }
 698                 $attribs = $data['attribs'];
 699                 unset( $data['attribs'] );
 700                 $attribs = wfArrayFilterByKey( $attribs, function ( $key ) {
 701                         return $key === 'class' || Sanitizer::isReservedDataAttribute( $key );
 702                 } );
 703
 704                 $prefix = '';
 705                 if ( is_callable( $this->changeLinePrefixer ) ) {
 706                         $prefix = call_user_func( $this->changeLinePrefixer, $rcObj, $this, false );
 707                 }
 708
 709                 $line = Html::openElement( 'table', $attribs ) . Html::openElement( 'tr' );
 710                 $line .= Html::rawElement( 'td', [], '<span class="mw-enhancedchanges-arrow-space"></span>' );
 711                 $line .= Html::rawElement( 'td', [ 'class' => 'mw-changeslist-line-prefix' ], $prefix );
 712                 $line .= '<td class="mw-enhanced-rc">';
 713
 714                 if ( isset( $data['recentChangesFlags'] ) ) {
 715                         $line .= $this->recentChangesFlags( $data['recentChangesFlags'] );
 716                         unset( $data['recentChangesFlags'] );
 717                 }
 718
 719                 if ( isset( $data['timestampLink'] ) ) {
 720                         $line .= '&#160;' . $data['timestampLink'];
 721                         unset( $data['timestampLink'] );
 722                 }
 723                 $line .= '&#160;</td>';
 724                 $line .= Html::openElement( 'td', [
 725                         'class' => 'mw-changeslist-line-inner',
 726                         // Used for reliable determination of the affiliated page
 727                         'data-target-page' => $rcObj->getTitle(),
 728                 ] );
 729
 730                 // everything else: makes it easier for extensions to add or remove data
 731                 $line .= implode( '', $data );
 732
 733                 $line .= "</td></tr></table>\n";
 734
 735                 return $line;
 736         }
 737
 738         /**
 739          * Returns value to be used in 'historyLink' element of $data param in
 740          * EnhancedChangesListModifyBlockLineData hook.
 741          *
 742          * @since 1.27
 743          *
 744          * @param RCCacheEntry $rc
 745          * @param array $query array of key/value pairs to append as a query string
 746          * @return string HTML
 747          */
 748         public function getDiffHistLinks( RCCacheEntry $rc, array $query ) {
 749                 $pageTitle = $rc->getTitle();
 750                 if ( $rc->getAttribute( 'rc_type' ) == RC_CATEGORIZE ) {
 751                         // For categorizations we must swap the category title with the page title!
 752                         $pageTitle = Title::newFromID( $rc->getAttribute( 'rc_cur_id' ) );
 753                         if ( !$pageTitle ) {
 754                                 // The page has been deleted, but the RC entry
 755                                 // deletion job has not run yet. Just skip.
 756                                 return '';
 757                         }
 758                 }
 759
 760                 $retVal = ' ' . $this->msg( 'parentheses' )
 761                                 ->rawParams( $rc->difflink . $this->message['pipe-separator']
 762                                         . $this->linkRenderer->makeKnownLink(
 763                                                 $pageTitle,
 764                                                 new HtmlArmor( $this->message['hist'] ),
 765                                                 [ 'class' => 'mw-changeslist-history' ],
 766                                                 $query
 767                                         ) )->escaped();
 768                 return $retVal;
 769         }
 770
 771         /**
 772          * If enhanced RC is in use, this function takes the previously cached
 773          * RC lines, arranges them, and outputs the HTML
 774          *
 775          * @return string
 776          */
 777         protected function recentChangesBlock() {
 778                 if ( count( $this->rc_cache ) == 0 ) {
 779                         return '';
 780                 }
 781
 782                 $blockOut = '';
 783                 foreach ( $this->rc_cache as $block ) {
 784                         if ( count( $block ) < 2 ) {
 785                                 $blockOut .= $this->recentChangesBlockLine( array_shift( $block ) );
 786                         } else {
 787                                 $blockOut .= $this->recentChangesBlockGroup( $block );
 788                         }
 789                 }
 790
 791                 if ( $blockOut === '' ) {
 792                         return '';
 793                 }
 794                 // $this->lastdate is kept up to date by recentChangesLine()
 795                 return Xml::element( 'h4', null, $this->lastdate ) . "\n<div>" . $blockOut . '</div>';
 796         }
 797
 798         /**
 799          * Returns text for the end of RC
 800          * If enhanced RC is in use, returns pretty much all the text
 801          * @return string
 802          */
 803         public function endRecentChangesList() {
 804                 return $this->recentChangesBlock() . '</div>';
 805         }
 806 }