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