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