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