includes/specials/SpecialWatchlist.php

   1 <?php
   2 /**
   3  * Implements Special:Watchlist
   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  * @ingroup SpecialPage
  22  */
  23
  24 use MediaWiki\MediaWikiServices;
  25 use Wikimedia\Rdbms\ResultWrapper;
  26 use Wikimedia\Rdbms\IDatabase;
  27
  28 /**
  29  * A special page that lists last changes made to the wiki,
  30  * limited to user-defined list of titles.
  31  *
  32  * @ingroup SpecialPage
  33  */
  34 class SpecialWatchlist extends ChangesListSpecialPage {
  35         private $maxDays;
  36
  37         public function __construct( $page = 'Watchlist', $restriction = 'viewmywatchlist' ) {
  38                 parent::__construct( $page, $restriction );
  39
  40                 $this->maxDays = $this->getConfig()->get( 'RCMaxAge' ) / ( 3600 * 24 );
  41         }
  42
  43         public function doesWrites() {
  44                 return true;
  45         }
  46
  47         /**
  48          * Main execution point
  49          *
  50          * @param string $subpage
  51          */
  52         function execute( $subpage ) {
  53                 // Anons don't get a watchlist
  54                 $this->requireLogin( 'watchlistanontext' );
  55
  56                 $output = $this->getOutput();
  57                 $request = $this->getRequest();
  58                 $this->addHelpLink( 'Help:Watching pages' );
  59                 $output->addModules( [
  60                         'mediawiki.special.changeslist.visitedstatus',
  61                         'mediawiki.special.watchlist',
  62                 ] );
  63                 $output->addModuleStyles( [ 'mediawiki.special.watchlist.styles' ] );
  64
  65                 $mode = SpecialEditWatchlist::getMode( $request, $subpage );
  66                 if ( $mode !== false ) {
  67                         if ( $mode === SpecialEditWatchlist::EDIT_RAW ) {
  68                                 $title = SpecialPage::getTitleFor( 'EditWatchlist', 'raw' );
  69                         } elseif ( $mode === SpecialEditWatchlist::EDIT_CLEAR ) {
  70                                 $title = SpecialPage::getTitleFor( 'EditWatchlist', 'clear' );
  71                         } else {
  72                                 $title = SpecialPage::getTitleFor( 'EditWatchlist' );
  73                         }
  74
  75                         $output->redirect( $title->getLocalURL() );
  76
  77                         return;
  78                 }
  79
  80                 $this->checkPermissions();
  81
  82                 $user = $this->getUser();
  83                 $opts = $this->getOptions();
  84
  85                 $config = $this->getConfig();
  86                 if ( ( $config->get( 'EnotifWatchlist' ) || $config->get( 'ShowUpdatedMarker' ) )
  87                         && $request->getVal( 'reset' )
  88                         && $request->wasPosted()
  89                         && $user->matchEditToken( $request->getVal( 'token' ) )
  90                 ) {
  91                         $user->clearAllNotifications();
  92                         $output->redirect( $this->getPageTitle()->getFullURL( $opts->getChangedValues() ) );
  93
  94                         return;
  95                 }
  96
  97                 parent::execute( $subpage );
  98
  99                 if ( $this->isStructuredFilterUiEnabled() ) {
 100                         $output->addModuleStyles( [ 'mediawiki.rcfilters.highlightCircles.seenunseen.styles' ] );
 101
 102                         $output->addJsConfigVars( 'wgStructuredChangeFiltersLiveUpdateSupported', false );
 103                         $output->addJsConfigVars(
 104                                 'wgStructuredChangeFiltersSavedQueriesPreferenceName',
 105                                 'rcfilters-wl-saved-queries'
 106                         );
 107                 }
 108         }
 109
 110         protected function isStructuredFilterUiEnabled() {
 111                 return parent::isStructuredFilterUiEnabled()
 112                         && ( $this->getConfig()->get( 'StructuredChangeFiltersOnWatchlist' )
 113                                 || $this->getRequest()->getBool( 'rcfilters' ) );
 114         }
 115
 116         /**
 117          * Return an array of subpages that this special page will accept.
 118          *
 119          * @see also SpecialEditWatchlist::getSubpagesForPrefixSearch
 120          * @return string[] subpages
 121          */
 122         public function getSubpagesForPrefixSearch() {
 123                 return [
 124                         'clear',
 125                         'edit',
 126                         'raw',
 127                 ];
 128         }
 129
 130         /**
 131          * @inheritDoc
 132          */
 133         protected function transformFilterDefinition( array $filterDefinition ) {
 134                 if ( isset( $filterDefinition['showHideSuffix'] ) ) {
 135                         $filterDefinition['showHide'] = 'wl' . $filterDefinition['showHideSuffix'];
 136                 }
 137
 138                 return $filterDefinition;
 139         }
 140
 141         /**
 142          * @inheritDoc
 143          */
 144         protected function registerFilters() {
 145                 parent::registerFilters();
 146
 147                 // legacy 'extended' filter
 148                 $this->registerFilterGroup( new ChangesListBooleanFilterGroup( [
 149                         'name' => 'extended-group',
 150                         'filters' => [
 151                                 [
 152                                         'name' => 'extended',
 153                                         'isReplacedInStructuredUi' => true,
 154                                         'activeValue' => false,
 155                                         'default' => $this->getUser()->getBoolOption( 'extendwatchlist' ),
 156                                         'queryCallable' => function ( $specialClassName, $ctx, $dbr, &$tables,
 157                                                                                                   &$fields, &$conds, &$query_options, &$join_conds ) {
 158                                                 $nonRevisionTypes = [ RC_LOG ];
 159                                                 Hooks::run( 'SpecialWatchlistGetNonRevisionTypes', [ &$nonRevisionTypes ] );
 160                                                 if ( $nonRevisionTypes ) {
 161                                                         $conds[] = $dbr->makeList(
 162                                                                 [
 163                                                                         'rc_this_oldid=page_latest',
 164                                                                         'rc_type' => $nonRevisionTypes,
 165                                                                 ],
 166                                                                 LIST_OR
 167                                                         );
 168                                                 }
 169                                         },
 170                                 ]
 171                         ],
 172
 173                 ] ) );
 174
 175                 if ( $this->isStructuredFilterUiEnabled() ) {
 176                         $this->getFilterGroup( 'lastRevision' )
 177                                 ->getFilter( 'hidepreviousrevisions' )
 178                                 ->setDefault( !$this->getUser()->getBoolOption( 'extendwatchlist' ) );
 179                 }
 180
 181                 $this->registerFilterGroup( new ChangesListStringOptionsFilterGroup( [
 182                         'name' => 'watchlistactivity',
 183                         'title' => 'rcfilters-filtergroup-watchlistactivity',
 184                         'class' => ChangesListStringOptionsFilterGroup::class,
 185                         'priority' => 3,
 186                         'isFullCoverage' => true,
 187                         'filters' => [
 188                                 [
 189                                         'name' => 'unseen',
 190                                         'label' => 'rcfilters-filter-watchlistactivity-unseen-label',
 191                                         'description' => 'rcfilters-filter-watchlistactivity-unseen-description',
 192                                         'cssClassSuffix' => 'watchedunseen',
 193                                         'isRowApplicableCallable' => function ( $ctx, $rc ) {
 194                                                 $changeTs = $rc->getAttribute( 'rc_timestamp' );
 195                                                 $lastVisitTs = $rc->getAttribute( 'wl_notificationtimestamp' );
 196                                                 return $lastVisitTs !== null && $changeTs >= $lastVisitTs;
 197                                         },
 198                                 ],
 199                                 [
 200                                         'name' => 'seen',
 201                                         'label' => 'rcfilters-filter-watchlistactivity-seen-label',
 202                                         'description' => 'rcfilters-filter-watchlistactivity-seen-description',
 203                                         'cssClassSuffix' => 'watchedseen',
 204                                         'isRowApplicableCallable' => function ( $ctx, $rc ) {
 205                                                 $changeTs = $rc->getAttribute( 'rc_timestamp' );
 206                                                 $lastVisitTs = $rc->getAttribute( 'wl_notificationtimestamp' );
 207                                                 return $lastVisitTs === null || $changeTs < $lastVisitTs;
 208                                         }
 209                                 ],
 210                         ],
 211                         'default' => ChangesListStringOptionsFilterGroup::NONE,
 212                         'queryCallable' => function ( $specialPageClassName, $context, $dbr,
 213                                                                                   &$tables, &$fields, &$conds, &$query_options, &$join_conds, $selectedValues ) {
 214                                 if ( $selectedValues === [ 'seen' ] ) {
 215                                         $conds[] = $dbr->makeList( [
 216                                                 'wl_notificationtimestamp IS NULL',
 217                                                 'rc_timestamp < wl_notificationtimestamp'
 218                                         ], LIST_OR );
 219                                 } elseif ( $selectedValues === [ 'unseen' ] ) {
 220                                         $conds[] = $dbr->makeList( [
 221                                                 'wl_notificationtimestamp IS NOT NULL',
 222                                                 'rc_timestamp >= wl_notificationtimestamp'
 223                                         ], LIST_AND );
 224                                 }
 225                         }
 226                 ] ) );
 227
 228                 $user = $this->getUser();
 229
 230                 $significance = $this->getFilterGroup( 'significance' );
 231                 $hideMinor = $significance->getFilter( 'hideminor' );
 232                 $hideMinor->setDefault( $user->getBoolOption( 'watchlisthideminor' ) );
 233
 234                 $automated = $this->getFilterGroup( 'automated' );
 235                 $hideBots = $automated->getFilter( 'hidebots' );
 236                 $hideBots->setDefault( $user->getBoolOption( 'watchlisthidebots' ) );
 237
 238                 $registration = $this->getFilterGroup( 'registration' );
 239                 $hideAnons = $registration->getFilter( 'hideanons' );
 240                 $hideAnons->setDefault( $user->getBoolOption( 'watchlisthideanons' ) );
 241                 $hideLiu = $registration->getFilter( 'hideliu' );
 242                 $hideLiu->setDefault( $user->getBoolOption( 'watchlisthideliu' ) );
 243
 244                 $reviewStatus = $this->getFilterGroup( 'reviewStatus' );
 245                 if ( $reviewStatus !== null ) {
 246                         // Conditional on feature being available and rights
 247                         $hidePatrolled = $reviewStatus->getFilter( 'hidepatrolled' );
 248                         $hidePatrolled->setDefault( $user->getBoolOption( 'watchlisthidepatrolled' ) );
 249                 }
 250
 251                 $authorship = $this->getFilterGroup( 'authorship' );
 252                 $hideMyself = $authorship->getFilter( 'hidemyself' );
 253                 $hideMyself->setDefault( $user->getBoolOption( 'watchlisthideown' ) );
 254
 255                 $changeType = $this->getFilterGroup( 'changeType' );
 256                 $hideCategorization = $changeType->getFilter( 'hidecategorization' );
 257                 if ( $hideCategorization !== null ) {
 258                         // Conditional on feature being available
 259                         $hideCategorization->setDefault( $user->getBoolOption( 'watchlisthidecategorization' ) );
 260                 }
 261         }
 262
 263         /**
 264          * Get a FormOptions object containing the default options
 265          *
 266          * @return FormOptions
 267          */
 268         public function getDefaultOptions() {
 269                 $opts = parent::getDefaultOptions();
 270                 $user = $this->getUser();
 271
 272                 $opts->add( 'days', $user->getOption( 'watchlistdays' ), FormOptions::FLOAT );
 273                 $opts->add( 'limit', $user->getIntOption( 'wllimit' ), FormOptions::INT );
 274
 275                 return $opts;
 276         }
 277
 278         public function validateOptions( FormOptions $opts ) {
 279                 $opts->validateBounds( 'days', 0, $this->maxDays );
 280                 $opts->validateIntBounds( 'limit', 0, 5000 );
 281                 parent::validateOptions( $opts );
 282         }
 283
 284         /**
 285          * Get all custom filters
 286          *
 287          * @return array Map of filter URL param names to properties (msg/default)
 288          */
 289         protected function getCustomFilters() {
 290                 if ( $this->customFilters === null ) {
 291                         $this->customFilters = parent::getCustomFilters();
 292                         Hooks::run( 'SpecialWatchlistFilters', [ $this, &$this->customFilters ], '1.23' );
 293                 }
 294
 295                 return $this->customFilters;
 296         }
 297
 298         /**
 299          * Fetch values for a FormOptions object from the WebRequest associated with this instance.
 300          *
 301          * Maps old pre-1.23 request parameters Watchlist used to use (different from Recentchanges' ones)
 302          * to the current ones.
 303          *
 304          * @param FormOptions $opts
 305          * @return FormOptions
 306          */
 307         protected function fetchOptionsFromRequest( $opts ) {
 308                 static $compatibilityMap = [
 309                         'hideMinor' => 'hideminor',
 310                         'hideBots' => 'hidebots',
 311                         'hideAnons' => 'hideanons',
 312                         'hideLiu' => 'hideliu',
 313                         'hidePatrolled' => 'hidepatrolled',
 314                         'hideOwn' => 'hidemyself',
 315                 ];
 316
 317                 $params = $this->getRequest()->getValues();
 318                 foreach ( $compatibilityMap as $from => $to ) {
 319                         if ( isset( $params[$from] ) ) {
 320                                 $params[$to] = $params[$from];
 321                                 unset( $params[$from] );
 322                         }
 323                 }
 324
 325                 if ( $this->getRequest()->getVal( 'action' ) == 'submit' ) {
 326                         $allBooleansFalse = [];
 327
 328                         // If the user submitted the form, start with a baseline of "all
 329                         // booleans are false", then change the ones they checked.  This
 330                         // means we ignore the defaults.
 331
 332                         // This is how we handle the fact that HTML forms don't submit
 333                         // unchecked boxes.
 334                         foreach ( $this->filterGroups as $filterGroup ) {
 335                                 if ( $filterGroup instanceof ChangesListBooleanFilterGroup ) {
 336                                         /** @var ChangesListBooleanFilter $filter */
 337                                         foreach ( $filterGroup->getFilters() as $filter ) {
 338                                                 if ( $filter->displaysOnUnstructuredUi() ) {
 339                                                         $allBooleansFalse[$filter->getName()] = false;
 340                                                 }
 341                                         }
 342                                 }
 343                         }
 344
 345                         $params = $params + $allBooleansFalse;
 346                 }
 347
 348                 // Not the prettiest way to achieve this… FormOptions internally depends on data sanitization
 349                 // methods defined on WebRequest and removing this dependency would cause some code duplication.
 350                 $request = new DerivativeRequest( $this->getRequest(), $params );
 351                 $opts->fetchValuesFromRequest( $request );
 352
 353                 return $opts;
 354         }
 355
 356         /**
 357          * @inheritDoc
 358          */
 359         protected function buildQuery( &$tables, &$fields, &$conds, &$query_options,
 360                 &$join_conds, FormOptions $opts
 361         ) {
 362                 $dbr = $this->getDB();
 363                 parent::buildQuery( $tables, $fields, $conds, $query_options, $join_conds,
 364                         $opts );
 365
 366                 // Calculate cutoff
 367                 if ( $opts['days'] > 0 ) {
 368                         $conds[] = 'rc_timestamp > ' .
 369                                 $dbr->addQuotes( $dbr->timestamp( time() - $opts['days'] * 3600 * 24 ) );
 370                 }
 371         }
 372
 373         /**
 374          * @inheritDoc
 375          */
 376         protected function doMainQuery( $tables, $fields, $conds, $query_options,
 377                 $join_conds, FormOptions $opts
 378         ) {
 379                 $dbr = $this->getDB();
 380                 $user = $this->getUser();
 381
 382                 $tables = array_merge( [ 'recentchanges', 'watchlist' ], $tables );
 383                 $fields = array_merge( RecentChange::selectFields(), $fields );
 384
 385                 $join_conds = array_merge(
 386                         [
 387                                 'watchlist' => [
 388                                         'INNER JOIN',
 389                                         [
 390                                                 'wl_user' => $user->getId(),
 391                                                 'wl_namespace=rc_namespace',
 392                                                 'wl_title=rc_title'
 393                                         ],
 394                                 ],
 395                         ],
 396                         $join_conds
 397                 );
 398
 399                 $tables[] = 'page';
 400                 $fields[] = 'page_latest';
 401                 $join_conds['page'] = [ 'LEFT JOIN', 'rc_cur_id=page_id' ];
 402
 403                 $fields[] = 'wl_notificationtimestamp';
 404
 405                 // Log entries with DELETED_ACTION must not show up unless the user has
 406                 // the necessary rights.
 407                 if ( !$user->isAllowed( 'deletedhistory' ) ) {
 408                         $bitmask = LogPage::DELETED_ACTION;
 409                 } elseif ( !$user->isAllowedAny( 'suppressrevision', 'viewsuppressed' ) ) {
 410                         $bitmask = LogPage::DELETED_ACTION | LogPage::DELETED_RESTRICTED;
 411                 } else {
 412                         $bitmask = 0;
 413                 }
 414                 if ( $bitmask ) {
 415                         $conds[] = $dbr->makeList( [
 416                                 'rc_type != ' . RC_LOG,
 417                                 $dbr->bitAnd( 'rc_deleted', $bitmask ) . " != $bitmask",
 418                         ], LIST_OR );
 419                 }
 420
 421                 $tagFilter = $opts['tagfilter'] ? explode( '|', $opts['tagfilter'] ) : [];
 422                 ChangeTags::modifyDisplayQuery(
 423                         $tables,
 424                         $fields,
 425                         $conds,
 426                         $join_conds,
 427                         $query_options,
 428                         $tagFilter
 429                 );
 430
 431                 $this->runMainQueryHook( $tables, $fields, $conds, $query_options, $join_conds, $opts );
 432
 433                 if ( $this->areFiltersInConflict() ) {
 434                         return false;
 435                 }
 436
 437                 $orderByAndLimit = [
 438                         'ORDER BY' => 'rc_timestamp DESC',
 439                         'LIMIT' => $opts['limit']
 440                 ];
 441                 if ( in_array( 'DISTINCT', $query_options ) ) {
 442                         // ChangeTags::modifyDisplayQuery() adds DISTINCT when filtering on multiple tags.
 443                         // In order to prevent DISTINCT from causing query performance problems,
 444                         // we have to GROUP BY the primary key. This in turn requires us to add
 445                         // the primary key to the end of the ORDER BY, and the old ORDER BY to the
 446                         // start of the GROUP BY
 447                         $orderByAndLimit['ORDER BY'] = 'rc_timestamp DESC, rc_id DESC';
 448                         $orderByAndLimit['GROUP BY'] = 'rc_timestamp, rc_id';
 449                 }
 450                 // array_merge() is used intentionally here so that hooks can, should
 451                 // they so desire, override the ORDER BY / LIMIT condition(s)
 452                 $query_options = array_merge( $orderByAndLimit, $query_options );
 453
 454                 return $dbr->select(
 455                         $tables,
 456                         $fields,
 457                         $conds,
 458                         __METHOD__,
 459                         $query_options,
 460                         $join_conds
 461                 );
 462         }
 463
 464         protected function runMainQueryHook( &$tables, &$fields, &$conds, &$query_options,
 465                 &$join_conds, $opts
 466         ) {
 467                 return parent::runMainQueryHook( $tables, $fields, $conds, $query_options, $join_conds, $opts )
 468                         && Hooks::run(
 469                                 'SpecialWatchlistQuery',
 470                                 [ &$conds, &$tables, &$join_conds, &$fields, $opts ],
 471                                 '1.23'
 472                         );
 473         }
 474
 475         /**
 476          * Return a IDatabase object for reading
 477          *
 478          * @return IDatabase
 479          */
 480         protected function getDB() {
 481                 return wfGetDB( DB_REPLICA, 'watchlist' );
 482         }
 483
 484         /**
 485          * Output feed links.
 486          */
 487         public function outputFeedLinks() {
 488                 $user = $this->getUser();
 489                 $wlToken = $user->getTokenFromOption( 'watchlisttoken' );
 490                 if ( $wlToken ) {
 491                         $this->addFeedLinks( [
 492                                 'action' => 'feedwatchlist',
 493                                 'allrev' => 1,
 494                                 'wlowner' => $user->getName(),
 495                                 'wltoken' => $wlToken,
 496                         ] );
 497                 }
 498         }
 499
 500         /**
 501          * Build and output the actual changes list.
 502          *
 503          * @param ResultWrapper $rows Database rows
 504          * @param FormOptions $opts
 505          */
 506         public function outputChangesList( $rows, $opts ) {
 507                 $dbr = $this->getDB();
 508                 $user = $this->getUser();
 509                 $output = $this->getOutput();
 510
 511                 # Show a message about replica DB lag, if applicable
 512                 $lag = wfGetLB()->safeGetLag( $dbr );
 513                 if ( $lag > 0 ) {
 514                         $output->showLagWarning( $lag );
 515                 }
 516
 517                 # If no rows to display, show message before try to render the list
 518                 if ( $rows->numRows() == 0 ) {
 519                         $output->wrapWikiMsg(
 520                                 "<div class='mw-changeslist-empty'>\n$1\n</div>", 'recentchanges-noresult'
 521                         );
 522                         return;
 523                 }
 524
 525                 $dbr->dataSeek( $rows, 0 );
 526
 527                 $list = ChangesList::newFromContext( $this->getContext(), $this->filterGroups );
 528                 $list->setWatchlistDivs();
 529                 $list->initChangesListRows( $rows );
 530                 if ( $user->getOption( 'watchlistunwatchlinks' ) ) {
 531                         $list->setChangeLinePrefixer( function ( RecentChange $rc, ChangesList $cl, $grouped ) {
 532                                 // Don't show unwatch link if the line is a grouped log entry using EnhancedChangesList,
 533                                 // since EnhancedChangesList groups log entries by performer rather than by target article
 534                                 if ( $rc->mAttribs['rc_type'] == RC_LOG && $cl instanceof EnhancedChangesList &&
 535                                         $grouped ) {
 536                                         return '';
 537                                 } else {
 538                                         return $this->getLinkRenderer()
 539                                                         ->makeKnownLink( $rc->getTitle(),
 540                                                                 $this->msg( 'watchlist-unwatch' )->text(), [
 541                                                                         'class' => 'mw-unwatch-link',
 542                                                                         'title' => $this->msg( 'tooltip-ca-unwatch' )->text()
 543                                                                 ], [ 'action' => 'unwatch' ] ) . '&#160;';
 544                                 }
 545                         } );
 546                 }
 547                 $dbr->dataSeek( $rows, 0 );
 548
 549                 if ( $this->getConfig()->get( 'RCShowWatchingUsers' )
 550                         && $user->getOption( 'shownumberswatching' )
 551                 ) {
 552                         $watchedItemStore = MediaWikiServices::getInstance()->getWatchedItemStore();
 553                 }
 554
 555                 $s = $list->beginRecentChangesList();
 556
 557                 if ( $this->isStructuredFilterUiEnabled() ) {
 558                         $s .= $this->makeLegend();
 559                 }
 560
 561                 $userShowHiddenCats = $this->getUser()->getBoolOption( 'showhiddencats' );
 562                 $counter = 1;
 563                 foreach ( $rows as $obj ) {
 564                         # Make RC entry
 565                         $rc = RecentChange::newFromRow( $obj );
 566
 567                         # Skip CatWatch entries for hidden cats based on user preference
 568                         if (
 569                                 $rc->getAttribute( 'rc_type' ) == RC_CATEGORIZE &&
 570                                 !$userShowHiddenCats &&
 571                                 $rc->getParam( 'hidden-cat' )
 572                         ) {
 573                                 continue;
 574                         }
 575
 576                         $rc->counter = $counter++;
 577
 578                         if ( $this->getConfig()->get( 'ShowUpdatedMarker' ) ) {
 579                                 $updated = $obj->wl_notificationtimestamp;
 580                         } else {
 581                                 $updated = false;
 582                         }
 583
 584                         if ( isset( $watchedItemStore ) ) {
 585                                 $rcTitleValue = new TitleValue( (int)$obj->rc_namespace, $obj->rc_title );
 586                                 $rc->numberofWatchingusers = $watchedItemStore->countWatchers( $rcTitleValue );
 587                         } else {
 588                                 $rc->numberofWatchingusers = 0;
 589                         }
 590
 591                         $changeLine = $list->recentChangesLine( $rc, $updated, $counter );
 592                         if ( $changeLine !== false ) {
 593                                 $s .= $changeLine;
 594                         }
 595                 }
 596                 $s .= $list->endRecentChangesList();
 597
 598                 $output->addHTML( $s );
 599         }
 600
 601         /**
 602          * Set the text to be displayed above the changes
 603          *
 604          * @param FormOptions $opts
 605          * @param int $numRows Number of rows in the result to show after this header
 606          */
 607         public function doHeader( $opts, $numRows ) {
 608                 $user = $this->getUser();
 609                 $out = $this->getOutput();
 610
 611                 $out->addSubtitle(
 612                         $this->msg( 'watchlistfor2', $user->getName() )
 613                                 ->rawParams( SpecialEditWatchlist::buildTools(
 614                                         $this->getLanguage(),
 615                                         $this->getLinkRenderer()
 616                                 ) )
 617                 );
 618
 619                 $this->setTopText( $opts );
 620
 621                 $form = '';
 622
 623                 $form .= Xml::openElement( 'form', [
 624                         'method' => 'get',
 625                         'action' => wfScript(),
 626                         'id' => 'mw-watchlist-form'
 627                 ] );
 628                 $form .= Html::hidden( 'title', $this->getPageTitle()->getPrefixedText() );
 629                 $form .= Xml::fieldset(
 630                         $this->msg( 'watchlist-options' )->text(),
 631                         false,
 632                         [ 'id' => 'mw-watchlist-options', 'class' => 'cloptions' ]
 633                 );
 634
 635                 if ( !$this->isStructuredFilterUiEnabled() ) {
 636                         $form .= $this->makeLegend();
 637                 }
 638
 639                 $lang = $this->getLanguage();
 640                 if ( $opts['days'] > 0 ) {
 641                         $days = $opts['days'];
 642                 } else {
 643                         $days = $this->maxDays;
 644                 }
 645                 $timestamp = wfTimestampNow();
 646                 $wlInfo = Html::rawElement(
 647                         'span',
 648                         [ 'class' => 'wlinfo' ],
 649                         $this->msg( 'wlnote' )->numParams( $numRows, round( $days * 24 ) )->params(
 650                                 $lang->userDate( $timestamp, $user ), $lang->userTime( $timestamp, $user )
 651                         )->parse()
 652                 ) . "<br />\n";
 653
 654                 $nondefaults = $opts->getChangedValues();
 655                 $cutofflinks = Html::rawElement(
 656                         'span',
 657                         [ 'class' => 'cldays cloption' ],
 658                         $this->msg( 'wlshowtime' ) . ' ' . $this->cutoffselector( $opts )
 659                 );
 660
 661                 # Spit out some control panel links
 662                 $links = [];
 663                 $namesOfDisplayedFilters = [];
 664                 foreach ( $this->getFilterGroups() as $groupName => $group ) {
 665                         if ( !$group->isPerGroupRequestParameter() ) {
 666                                 foreach ( $group->getFilters() as $filterName => $filter ) {
 667                                         if ( $filter->displaysOnUnstructuredUi( $this ) ) {
 668                                                 $namesOfDisplayedFilters[] = $filterName;
 669                                                 $links[] = $this->showHideCheck(
 670                                                         $nondefaults,
 671                                                         $filter->getShowHide(),
 672                                                         $filterName,
 673                                                         $opts[$filterName],
 674                                                         $filter->isFeatureAvailableOnStructuredUi( $this )
 675                                                 );
 676                                         }
 677                                 }
 678                         }
 679                 }
 680
 681                 $hiddenFields = $nondefaults;
 682                 $hiddenFields['action'] = 'submit';
 683                 unset( $hiddenFields['namespace'] );
 684                 unset( $hiddenFields['invert'] );
 685                 unset( $hiddenFields['associated'] );
 686                 unset( $hiddenFields['days'] );
 687                 foreach ( $namesOfDisplayedFilters as $filterName ) {
 688                         unset( $hiddenFields[$filterName] );
 689                 }
 690
 691                 # Namespace filter and put the whole form together.
 692                 $form .= $wlInfo;
 693                 $form .= $cutofflinks;
 694                 $form .= Html::rawElement(
 695                         'span',
 696                         [ 'class' => 'clshowhide' ],
 697                         $this->msg( 'watchlist-hide' ) .
 698                         $this->msg( 'colon-separator' )->escaped() .
 699                         implode( ' ', $links )
 700                 );
 701                 $form .= "\n<br />\n";
 702
 703                 $namespaceForm = Html::namespaceSelector(
 704                         [
 705                                 'selected' => $opts['namespace'],
 706                                 'all' => '',
 707                                 'label' => $this->msg( 'namespace' )->text()
 708                         ], [
 709                                 'name' => 'namespace',
 710                                 'id' => 'namespace',
 711                                 'class' => 'namespaceselector',
 712                         ]
 713                 ) . "\n";
 714                 $namespaceForm .= '<span class="mw-input-with-label">' . Xml::checkLabel(
 715                         $this->msg( 'invert' )->text(),
 716                         'invert',
 717                         'nsinvert',
 718                         $opts['invert'],
 719                         [ 'title' => $this->msg( 'tooltip-invert' )->text() ]
 720                 ) . "</span>\n";
 721                 $namespaceForm .= '<span class="mw-input-with-label">' . Xml::checkLabel(
 722                         $this->msg( 'namespace_association' )->text(),
 723                         'associated',
 724                         'nsassociated',
 725                         $opts['associated'],
 726                         [ 'title' => $this->msg( 'tooltip-namespace_association' )->text() ]
 727                 ) . "</span>\n";
 728                 $form .= Html::rawElement(
 729                         'span',
 730                         [ 'class' => 'namespaceForm cloption' ],
 731                         $namespaceForm
 732                 );
 733
 734                 $form .= Xml::submitButton(
 735                         $this->msg( 'watchlist-submit' )->text(),
 736                         [ 'class' => 'cloption-submit' ]
 737                 ) . "\n";
 738                 foreach ( $hiddenFields as $key => $value ) {
 739                         $form .= Html::hidden( $key, $value ) . "\n";
 740                 }
 741                 $form .= Xml::closeElement( 'fieldset' ) . "\n";
 742                 $form .= Xml::closeElement( 'form' ) . "\n";
 743
 744                 // Insert a placeholder for RCFilters
 745                 if ( $this->isStructuredFilterUiEnabled() ) {
 746                         $rcfilterContainer = Html::element(
 747                                 'div',
 748                                 [ 'class' => 'rcfilters-container' ]
 749                         );
 750
 751                         $loadingContainer = Html::rawElement(
 752                                 'div',
 753                                 [ 'class' => 'rcfilters-spinner' ],
 754                                 Html::element(
 755                                         'div',
 756                                         [ 'class' => 'rcfilters-spinner-bounce' ]
 757                                 )
 758                         );
 759
 760                         // Wrap both with rcfilters-head
 761                         $this->getOutput()->addHTML(
 762                                 Html::rawElement(
 763                                         'div',
 764                                         [ 'class' => 'rcfilters-head' ],
 765                                         $rcfilterContainer . $form
 766                                 )
 767                         );
 768
 769                         // Add spinner
 770                         $this->getOutput()->addHTML( $loadingContainer );
 771                 } else {
 772                         $this->getOutput()->addHTML( $form );
 773                 }
 774
 775                 $this->setBottomText( $opts );
 776         }
 777
 778         function cutoffselector( $options ) {
 779                 // Cast everything to strings immediately, so that we know all of the values have the same
 780                 // precision, and can be compared with '==='. 2/24 has a few more decimal places than its
 781                 // default string representation, for example, and would confuse comparisons.
 782
 783                 // Misleadingly, the 'days' option supports hours too.
 784                 $days = array_map( 'strval', [ 1 / 24, 2 / 24, 6 / 24, 12 / 24, 1, 3, 7 ] );
 785
 786                 $userWatchlistOption = (string)$this->getUser()->getOption( 'watchlistdays' );
 787                 // add the user preference, if it isn't available already
 788                 if ( !in_array( $userWatchlistOption, $days ) && $userWatchlistOption !== '0' ) {
 789                         $days[] = $userWatchlistOption;
 790                 }
 791
 792                 $maxDays = (string)$this->maxDays;
 793                 // add the maximum possible value, if it isn't available already
 794                 if ( !in_array( $maxDays, $days ) ) {
 795                         $days[] = $maxDays;
 796                 }
 797
 798                 $selected = (string)$options['days'];
 799                 if ( $selected <= 0 ) {
 800                         $selected = $maxDays;
 801                 }
 802
 803                 // add the currently selected value, if it isn't available already
 804                 if ( !in_array( $selected, $days ) ) {
 805                         $days[] = $selected;
 806                 }
 807
 808                 $select = new XmlSelect( 'days', 'days', $selected );
 809
 810                 asort( $days );
 811                 foreach ( $days as $value ) {
 812                         if ( $value < 1 ) {
 813                                 $name = $this->msg( 'hours' )->numParams( $value * 24 )->text();
 814                         } else {
 815                                 $name = $this->msg( 'days' )->numParams( $value )->text();
 816                         }
 817                         $select->addOption( $name, $value );
 818                 }
 819
 820                 return $select->getHTML() . "\n<br />\n";
 821         }
 822
 823         function setTopText( FormOptions $opts ) {
 824                 $nondefaults = $opts->getChangedValues();
 825                 $form = '';
 826                 $user = $this->getUser();
 827
 828                 $numItems = $this->countItems();
 829                 $showUpdatedMarker = $this->getConfig()->get( 'ShowUpdatedMarker' );
 830
 831                 // Show watchlist header
 832                 $form .= "<p>";
 833                 if ( $numItems == 0 ) {
 834                         $form .= $this->msg( 'nowatchlist' )->parse() . "\n";
 835                 } else {
 836                         $form .= $this->msg( 'watchlist-details' )->numParams( $numItems )->parse() . "\n";
 837                         if ( $this->getConfig()->get( 'EnotifWatchlist' )
 838                                 && $user->getOption( 'enotifwatchlistpages' )
 839                         ) {
 840                                 $form .= $this->msg( 'wlheader-enotif' )->parse() . "\n";
 841                         }
 842                         if ( $showUpdatedMarker ) {
 843                                 $form .= $this->msg( 'wlheader-showupdated' )->parse() . "\n";
 844                         }
 845                 }
 846                 $form .= "</p>";
 847
 848                 if ( $numItems > 0 && $showUpdatedMarker ) {
 849                         $form .= Xml::openElement( 'form', [ 'method' => 'post',
 850                                 'action' => $this->getPageTitle()->getLocalURL(),
 851                                 'id' => 'mw-watchlist-resetbutton' ] ) . "\n" .
 852                         Xml::submitButton( $this->msg( 'enotif_reset' )->text(),
 853                                 [ 'name' => 'mw-watchlist-reset-submit' ] ) . "\n" .
 854                         Html::hidden( 'token', $user->getEditToken() ) . "\n" .
 855                         Html::hidden( 'reset', 'all' ) . "\n";
 856                         foreach ( $nondefaults as $key => $value ) {
 857                                 $form .= Html::hidden( $key, $value ) . "\n";
 858                         }
 859                         $form .= Xml::closeElement( 'form' ) . "\n";
 860                 }
 861
 862                 $this->getOutput()->addHTML( $form );
 863         }
 864
 865         protected function showHideCheck( $options, $message, $name, $value, $inStructuredUi ) {
 866                 $options[$name] = 1 - (int)$value;
 867
 868                 $attribs = [ 'class' => 'mw-input-with-label clshowhideoption cloption' ];
 869                 if ( $inStructuredUi ) {
 870                         $attribs[ 'data-feature-in-structured-ui' ] = true;
 871                 }
 872
 873                 return Html::rawElement(
 874                         'span',
 875                         $attribs,
 876                         Xml::checkLabel(
 877                                 $this->msg( $message, '' )->text(),
 878                                 $name,
 879                                 $name,
 880                                 (int)$value
 881                         )
 882                 );
 883         }
 884
 885         /**
 886          * Count the number of paired items on a user's watchlist.
 887          * The assumption made here is that when a subject page is watched a talk page is also watched.
 888          * Hence the number of individual items is halved.
 889          *
 890          * @return int
 891          */
 892         protected function countItems() {
 893                 $store = MediaWikiServices::getInstance()->getWatchedItemStore();
 894                 $count = $store->countWatchedItems( $this->getUser() );
 895                 return floor( $count / 2 );
 896         }
 897
 898         function getDefaultLimit() {
 899                 return $this->getUser()->getIntOption( 'wllimit' );
 900         }
 901
 902         function getDefaultDays() {
 903                 return $this->getUser()->getIntOption( 'watchlistdays' );
 904         }
 905 }