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
  39         public function doesWrites() {
  40                 return true;
  41         }
  42
  43         /**
  44          * Main execution point
  45          *
  46          * @param string $subpage
  47          */
  48         function execute( $subpage ) {
  49                 // Anons don't get a watchlist
  50                 $this->requireLogin( 'watchlistanontext' );
  51
  52                 $output = $this->getOutput();
  53                 $request = $this->getRequest();
  54                 $this->addHelpLink( 'Help:Watching pages' );
  55                 $output->addModules( [
  56                         'mediawiki.special.changeslist.visitedstatus',
  57                         'mediawiki.special.watchlist',
  58                 ] );
  59
  60                 $mode = SpecialEditWatchlist::getMode( $request, $subpage );
  61                 if ( $mode !== false ) {
  62                         if ( $mode === SpecialEditWatchlist::EDIT_RAW ) {
  63                                 $title = SpecialPage::getTitleFor( 'EditWatchlist', 'raw' );
  64                         } elseif ( $mode === SpecialEditWatchlist::EDIT_CLEAR ) {
  65                                 $title = SpecialPage::getTitleFor( 'EditWatchlist', 'clear' );
  66                         } else {
  67                                 $title = SpecialPage::getTitleFor( 'EditWatchlist' );
  68                         }
  69
  70                         $output->redirect( $title->getLocalURL() );
  71
  72                         return;
  73                 }
  74
  75                 $this->checkPermissions();
  76
  77                 $user = $this->getUser();
  78                 $opts = $this->getOptions();
  79
  80                 $config = $this->getConfig();
  81                 if ( ( $config->get( 'EnotifWatchlist' ) || $config->get( 'ShowUpdatedMarker' ) )
  82                         && $request->getVal( 'reset' )
  83                         && $request->wasPosted()
  84                 ) {
  85                         $user->clearAllNotifications();
  86                         $output->redirect( $this->getPageTitle()->getFullURL( $opts->getChangedValues() ) );
  87
  88                         return;
  89                 }
  90
  91                 parent::execute( $subpage );
  92         }
  93
  94         /**
  95          * Return an array of subpages that this special page will accept.
  96          *
  97          * @see also SpecialEditWatchlist::getSubpagesForPrefixSearch
  98          * @return string[] subpages
  99          */
 100         public function getSubpagesForPrefixSearch() {
 101                 return [
 102                         'clear',
 103                         'edit',
 104                         'raw',
 105                 ];
 106         }
 107
 108         /**
 109          * @inheritdoc
 110          */
 111         protected function registerFiltersFromDefinitions( array $definition ) {
 112                 foreach ( $definition as $groupName => &$groupDefinition ) {
 113                         foreach ( $groupDefinition['filters'] as &$filterDefinition ) {
 114                                 if ( isset( $filterDefinition['showHideSuffix'] ) ) {
 115                                         $filterDefinition['showHide'] = 'wl' . $filterDefinition['showHideSuffix'];
 116                                 }
 117                         }
 118                 }
 119
 120                 parent::registerFiltersFromDefinitions( $definition );
 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                 $hidePatrolled = $reviewStatus->getFilter( 'hidepatrolled' );
 147                 $hidePatrolled->setDefault( $user->getBoolOption( 'watchlisthidepatrolled' ) );
 148
 149                 $authorship = $this->getFilterGroup( 'authorship' );
 150                 $hideMyself = $authorship->getFilter( 'hidemyself' );
 151                 $hideMyself->setDefault( $user->getBoolOption( 'watchlisthideown' ) );
 152
 153                 $changeType = $this->getFilterGroup( 'changeType' );
 154                 $hideCategorization = $changeType->getFilter( 'hidecategorization' );
 155                 $hideCategorization->setDefault( $user->getBoolOption( 'watchlisthidecategorization' ) );
 156         }
 157
 158         /**
 159          * Get a FormOptions object containing the default options
 160          *
 161          * @return FormOptions
 162          */
 163         public function getDefaultOptions() {
 164                 $opts = parent::getDefaultOptions();
 165                 $user = $this->getUser();
 166
 167                 $opts->add( 'days', $user->getOption( 'watchlistdays' ), FormOptions::FLOAT );
 168                 $opts->add( 'extended', $user->getBoolOption( 'extendwatchlist' ) );
 169
 170                 return $opts;
 171         }
 172
 173         /**
 174          * Get all custom filters
 175          *
 176          * @return array Map of filter URL param names to properties (msg/default)
 177          */
 178         protected function getCustomFilters() {
 179                 if ( $this->customFilters === null ) {
 180                         $this->customFilters = parent::getCustomFilters();
 181                         Hooks::run( 'SpecialWatchlistFilters', [ $this, &$this->customFilters ], '1.23' );
 182                 }
 183
 184                 return $this->customFilters;
 185         }
 186
 187         /**
 188          * Fetch values for a FormOptions object from the WebRequest associated with this instance.
 189          *
 190          * Maps old pre-1.23 request parameters Watchlist used to use (different from Recentchanges' ones)
 191          * to the current ones.
 192          *
 193          * @param FormOptions $opts
 194          * @return FormOptions
 195          */
 196         protected function fetchOptionsFromRequest( $opts ) {
 197                 static $compatibilityMap = [
 198                         'hideMinor' => 'hideminor',
 199                         'hideBots' => 'hidebots',
 200                         'hideAnons' => 'hideanons',
 201                         'hideLiu' => 'hideliu',
 202                         'hidePatrolled' => 'hidepatrolled',
 203                         'hideOwn' => 'hidemyself',
 204                 ];
 205
 206                 $params = $this->getRequest()->getValues();
 207                 foreach ( $compatibilityMap as $from => $to ) {
 208                         if ( isset( $params[$from] ) ) {
 209                                 $params[$to] = $params[$from];
 210                                 unset( $params[$from] );
 211                         }
 212                 }
 213
 214                 if ( $this->getRequest()->getVal( 'action' ) == 'submit' ) {
 215                         $allBooleansFalse = [];
 216
 217                         // If the user submitted the form, start with a baseline of "all
 218                         // booleans are false", then change the ones they checked.  This
 219                         // means we ignore the defaults.
 220
 221                         // This is how we handle the fact that HTML forms don't submit
 222                         // unchecked boxes.
 223                         foreach ( $this->filterGroups as $filterGroup ) {
 224                                 if ( $filterGroup instanceof ChangesListBooleanFilterGroup ) {
 225                                         foreach ( $filterGroup->getFilters() as $filter ) {
 226                                                 $allBooleansFalse[$filter->getName()] = false;
 227                                         }
 228                                 }
 229                         }
 230
 231                         $params = $params + $allBooleansFalse;
 232                 }
 233
 234                 // Not the prettiest way to achieve this… FormOptions internally depends on data sanitization
 235                 // methods defined on WebRequest and removing this dependency would cause some code duplication.
 236                 $request = new DerivativeRequest( $this->getRequest(), $params );
 237                 $opts->fetchValuesFromRequest( $request );
 238
 239                 return $opts;
 240         }
 241
 242         /**
 243          * @inheritdoc
 244          */
 245         protected function buildQuery( &$tables, &$fields, &$conds, &$query_options,
 246                 &$join_conds, FormOptions $opts ) {
 247
 248                 $dbr = $this->getDB();
 249                 parent::buildQuery( $tables, $fields, $conds, $query_options, $join_conds,
 250                         $opts );
 251
 252                 // Calculate cutoff
 253                 if ( $opts['days'] > 0 ) {
 254                         $conds[] = 'rc_timestamp > ' .
 255                                 $dbr->addQuotes( $dbr->timestamp( time() - intval( $opts['days'] * 86400 ) ) );
 256                 }
 257         }
 258
 259         /**
 260          * @inheritdoc
 261          */
 262         protected function doMainQuery( $tables, $fields, $conds, $query_options,
 263                 $join_conds, FormOptions $opts ) {
 264
 265                 $dbr = $this->getDB();
 266                 $user = $this->getUser();
 267
 268                 # Toggle watchlist content (all recent edits or just the latest)
 269                 if ( $opts['extended'] ) {
 270                         $limitWatchlist = $user->getIntOption( 'wllimit' );
 271                         $usePage = false;
 272                 } else {
 273                         # Top log Ids for a page are not stored
 274                         $nonRevisionTypes = [ RC_LOG ];
 275                         Hooks::run( 'SpecialWatchlistGetNonRevisionTypes', [ &$nonRevisionTypes ] );
 276                         if ( $nonRevisionTypes ) {
 277                                 $conds[] = $dbr->makeList(
 278                                         [
 279                                                 'rc_this_oldid=page_latest',
 280                                                 'rc_type' => $nonRevisionTypes,
 281                                         ],
 282                                         LIST_OR
 283                                 );
 284                         }
 285                         $limitWatchlist = 0;
 286                         $usePage = true;
 287                 }
 288
 289                 $tables = array_merge( [ 'recentchanges', 'watchlist' ], $tables );
 290                 $fields = array_merge( RecentChange::selectFields(), $fields );
 291
 292                 $query_options = array_merge( [ 'ORDER BY' => 'rc_timestamp DESC' ], $query_options );
 293                 $join_conds = array_merge(
 294                         [
 295                                 'watchlist' => [
 296                                         'INNER JOIN',
 297                                         [
 298                                                 'wl_user' => $user->getId(),
 299                                                 'wl_namespace=rc_namespace',
 300                                                 'wl_title=rc_title'
 301                                         ],
 302                                 ],
 303                         ],
 304                         $join_conds
 305                 );
 306
 307                 if ( $this->getConfig()->get( 'ShowUpdatedMarker' ) ) {
 308                         $fields[] = 'wl_notificationtimestamp';
 309                 }
 310                 if ( $limitWatchlist ) {
 311                         $query_options['LIMIT'] = $limitWatchlist;
 312                 }
 313
 314                 $rollbacker = $user->isAllowed( 'rollback' );
 315                 if ( $usePage || $rollbacker ) {
 316                         $tables[] = 'page';
 317                         $join_conds['page'] = [ 'LEFT JOIN', 'rc_cur_id=page_id' ];
 318                         if ( $rollbacker ) {
 319                                 $fields[] = 'page_latest';
 320                         }
 321                 }
 322
 323                 // Log entries with DELETED_ACTION must not show up unless the user has
 324                 // the necessary rights.
 325                 if ( !$user->isAllowed( 'deletedhistory' ) ) {
 326                         $bitmask = LogPage::DELETED_ACTION;
 327                 } elseif ( !$user->isAllowedAny( 'suppressrevision', 'viewsuppressed' ) ) {
 328                         $bitmask = LogPage::DELETED_ACTION | LogPage::DELETED_RESTRICTED;
 329                 } else {
 330                         $bitmask = 0;
 331                 }
 332                 if ( $bitmask ) {
 333                         $conds[] = $dbr->makeList( [
 334                                 'rc_type != ' . RC_LOG,
 335                                 $dbr->bitAnd( 'rc_deleted', $bitmask ) . " != $bitmask",
 336                         ], LIST_OR );
 337                 }
 338
 339                 ChangeTags::modifyDisplayQuery(
 340                         $tables,
 341                         $fields,
 342                         $conds,
 343                         $join_conds,
 344                         $query_options,
 345                         ''
 346                 );
 347
 348                 $this->runMainQueryHook( $tables, $fields, $conds, $query_options, $join_conds, $opts );
 349
 350                 return $dbr->select(
 351                         $tables,
 352                         $fields,
 353                         $conds,
 354                         __METHOD__,
 355                         $query_options,
 356                         $join_conds
 357                 );
 358         }
 359
 360         protected function runMainQueryHook( &$tables, &$fields, &$conds, &$query_options,
 361                 &$join_conds, $opts
 362         ) {
 363                 return parent::runMainQueryHook( $tables, $fields, $conds, $query_options, $join_conds, $opts )
 364                         && Hooks::run(
 365                                 'SpecialWatchlistQuery',
 366                                 [ &$conds, &$tables, &$join_conds, &$fields, $opts ],
 367                                 '1.23'
 368                         );
 369         }
 370
 371         /**
 372          * Return a IDatabase object for reading
 373          *
 374          * @return IDatabase
 375          */
 376         protected function getDB() {
 377                 return wfGetDB( DB_REPLICA, 'watchlist' );
 378         }
 379
 380         /**
 381          * Output feed links.
 382          */
 383         public function outputFeedLinks() {
 384                 $user = $this->getUser();
 385                 $wlToken = $user->getTokenFromOption( 'watchlisttoken' );
 386                 if ( $wlToken ) {
 387                         $this->addFeedLinks( [
 388                                 'action' => 'feedwatchlist',
 389                                 'allrev' => 1,
 390                                 'wlowner' => $user->getName(),
 391                                 'wltoken' => $wlToken,
 392                         ] );
 393                 }
 394         }
 395
 396         /**
 397          * Build and output the actual changes list.
 398          *
 399          * @param ResultWrapper $rows Database rows
 400          * @param FormOptions $opts
 401          */
 402         public function outputChangesList( $rows, $opts ) {
 403                 $dbr = $this->getDB();
 404                 $user = $this->getUser();
 405                 $output = $this->getOutput();
 406
 407                 # Show a message about replica DB lag, if applicable
 408                 $lag = wfGetLB()->safeGetLag( $dbr );
 409                 if ( $lag > 0 ) {
 410                         $output->showLagWarning( $lag );
 411                 }
 412
 413                 # If no rows to display, show message before try to render the list
 414                 if ( $rows->numRows() == 0 ) {
 415                         $output->wrapWikiMsg(
 416                                 "<div class='mw-changeslist-empty'>\n$1\n</div>", 'recentchanges-noresult'
 417                         );
 418                         return;
 419                 }
 420
 421                 $dbr->dataSeek( $rows, 0 );
 422
 423                 $list = ChangesList::newFromContext( $this->getContext(), $this->filterGroups );
 424                 $list->setWatchlistDivs();
 425                 $list->initChangesListRows( $rows );
 426                 $dbr->dataSeek( $rows, 0 );
 427
 428                 if ( $this->getConfig()->get( 'RCShowWatchingUsers' )
 429                         && $user->getOption( 'shownumberswatching' )
 430                 ) {
 431                         $watchedItemStore = MediaWikiServices::getInstance()->getWatchedItemStore();
 432                 }
 433
 434                 $s = $list->beginRecentChangesList();
 435                 $userShowHiddenCats = $this->getUser()->getBoolOption( 'showhiddencats' );
 436                 $counter = 1;
 437                 foreach ( $rows as $obj ) {
 438                         # Make RC entry
 439                         $rc = RecentChange::newFromRow( $obj );
 440
 441                         # Skip CatWatch entries for hidden cats based on user preference
 442                         if (
 443                                 $rc->getAttribute( 'rc_type' ) == RC_CATEGORIZE &&
 444                                 !$userShowHiddenCats &&
 445                                 $rc->getParam( 'hidden-cat' )
 446                         ) {
 447                                 continue;
 448                         }
 449
 450                         $rc->counter = $counter++;
 451
 452                         if ( $this->getConfig()->get( 'ShowUpdatedMarker' ) ) {
 453                                 $updated = $obj->wl_notificationtimestamp;
 454                         } else {
 455                                 $updated = false;
 456                         }
 457
 458                         if ( isset( $watchedItemStore ) ) {
 459                                 $rcTitleValue = new TitleValue( (int)$obj->rc_namespace, $obj->rc_title );
 460                                 $rc->numberofWatchingusers = $watchedItemStore->countWatchers( $rcTitleValue );
 461                         } else {
 462                                 $rc->numberofWatchingusers = 0;
 463                         }
 464
 465                         $changeLine = $list->recentChangesLine( $rc, $updated, $counter );
 466                         if ( $changeLine !== false ) {
 467                                 $s .= $changeLine;
 468                         }
 469                 }
 470                 $s .= $list->endRecentChangesList();
 471
 472                 $output->addHTML( $s );
 473         }
 474
 475         /**
 476          * Set the text to be displayed above the changes
 477          *
 478          * @param FormOptions $opts
 479          * @param int $numRows Number of rows in the result to show after this header
 480          */
 481         public function doHeader( $opts, $numRows ) {
 482                 $user = $this->getUser();
 483                 $out = $this->getOutput();
 484
 485                 $out->addSubtitle(
 486                         $this->msg( 'watchlistfor2', $user->getName() )
 487                                 ->rawParams( SpecialEditWatchlist::buildTools(
 488                                         $this->getLanguage(),
 489                                         $this->getLinkRenderer()
 490                                 ) )
 491                 );
 492
 493                 $this->setTopText( $opts );
 494
 495                 $lang = $this->getLanguage();
 496                 if ( $opts['days'] > 0 ) {
 497                         $days = $opts['days'];
 498                 } else {
 499                         $days = $this->getConfig()->get( 'RCMaxAge' ) / ( 3600 * 24 );
 500                 }
 501                 $timestamp = wfTimestampNow();
 502                 $wlInfo = $this->msg( 'wlnote' )->numParams( $numRows, round( $days * 24 ) )->params(
 503                         $lang->userDate( $timestamp, $user ), $lang->userTime( $timestamp, $user )
 504                 )->parse() . "<br />\n";
 505
 506                 $nondefaults = $opts->getChangedValues();
 507                 $cutofflinks = $this->msg( 'wlshowtime' ) . ' ' . $this->cutoffselector( $opts );
 508
 509                 # Spit out some control panel links
 510                 $links = [];
 511                 $context = $this->getContext();
 512                 $namesOfDisplayedFilters = [];
 513                 foreach ( $this->getFilterGroups() as $groupName => $group ) {
 514                         if ( !$group->isPerGroupRequestParameter() ) {
 515                                 foreach ( $group->getFilters() as $filterName => $filter ) {
 516                                         if ( $filter->displaysOnUnstructuredUi( $this ) ) {
 517                                                 $namesOfDisplayedFilters[] = $filterName;
 518                                                 $links[] = $this->showHideCheck(
 519                                                         $nondefaults,
 520                                                         $filter->getShowHide(),
 521                                                         $filterName,
 522                                                         $opts[$filterName]
 523                                                 );
 524                                         }
 525                                 }
 526                         }
 527                 }
 528
 529                 $hiddenFields = $nondefaults;
 530                 $hiddenFields['action'] = 'submit';
 531                 unset( $hiddenFields['namespace'] );
 532                 unset( $hiddenFields['invert'] );
 533                 unset( $hiddenFields['associated'] );
 534                 unset( $hiddenFields['days'] );
 535                 foreach ( $namesOfDisplayedFilters as $filterName ) {
 536                         unset( $hiddenFields[$filterName] );
 537                 }
 538
 539                 # Create output
 540                 $form = '';
 541
 542                 # Namespace filter and put the whole form together.
 543                 $form .= $wlInfo;
 544                 $form .= $cutofflinks;
 545                 $form .= $this->msg( 'watchlist-hide' ) .
 546                         $this->msg( 'colon-separator' )->escaped() .
 547                         implode( ' ', $links );
 548                 $form .= "\n<br />\n";
 549                 $form .= Html::namespaceSelector(
 550                         [
 551                                 'selected' => $opts['namespace'],
 552                                 'all' => '',
 553                                 'label' => $this->msg( 'namespace' )->text()
 554                         ], [
 555                                 'name' => 'namespace',
 556                                 'id' => 'namespace',
 557                                 'class' => 'namespaceselector',
 558                         ]
 559                 ) . "\n";
 560                 $form .= '<span class="mw-input-with-label">' . Xml::checkLabel(
 561                         $this->msg( 'invert' )->text(),
 562                         'invert',
 563                         'nsinvert',
 564                         $opts['invert'],
 565                         [ 'title' => $this->msg( 'tooltip-invert' )->text() ]
 566                 ) . "</span>\n";
 567                 $form .= '<span class="mw-input-with-label">' . Xml::checkLabel(
 568                         $this->msg( 'namespace_association' )->text(),
 569                         'associated',
 570                         'nsassociated',
 571                         $opts['associated'],
 572                         [ 'title' => $this->msg( 'tooltip-namespace_association' )->text() ]
 573                 ) . "</span>\n";
 574                 $form .= Xml::submitButton( $this->msg( 'watchlist-submit' )->text() ) . "\n";
 575                 foreach ( $hiddenFields as $key => $value ) {
 576                         $form .= Html::hidden( $key, $value ) . "\n";
 577                 }
 578                 $form .= Xml::closeElement( 'fieldset' ) . "\n";
 579                 $form .= Xml::closeElement( 'form' ) . "\n";
 580                 $this->getOutput()->addHTML( $form );
 581
 582                 $this->setBottomText( $opts );
 583         }
 584
 585         function cutoffselector( $options ) {
 586                 // Cast everything to strings immediately, so that we know all of the values have the same
 587                 // precision, and can be compared with '==='. 2/24 has a few more decimal places than its
 588                 // default string representation, for example, and would confuse comparisons.
 589
 590                 // Misleadingly, the 'days' option supports hours too.
 591                 $days = array_map( 'strval', [ 1/24, 2/24, 6/24, 12/24, 1, 3, 7 ] );
 592
 593                 $userWatchlistOption = (string)$this->getUser()->getOption( 'watchlistdays' );
 594                 // add the user preference, if it isn't available already
 595                 if ( !in_array( $userWatchlistOption, $days ) && $userWatchlistOption !== '0' ) {
 596                         $days[] = $userWatchlistOption;
 597                 }
 598
 599                 $maxDays = (string)( $this->getConfig()->get( 'RCMaxAge' ) / ( 3600 * 24 ) );
 600                 // add the maximum possible value, if it isn't available already
 601                 if ( !in_array( $maxDays, $days ) ) {
 602                         $days[] = $maxDays;
 603                 }
 604
 605                 $selected = (string)$options['days'];
 606                 if ( $selected <= 0 ) {
 607                         $selected = $maxDays;
 608                 }
 609
 610                 // add the currently selected value, if it isn't available already
 611                 if ( !in_array( $selected, $days ) ) {
 612                         $days[] = $selected;
 613                 }
 614
 615                 $select = new XmlSelect( 'days', 'days', $selected );
 616
 617                 asort( $days );
 618                 foreach ( $days as $value ) {
 619                         if ( $value < 1 ) {
 620                                 $name = $this->msg( 'hours' )->numParams( $value * 24 )->text();
 621                         } else {
 622                                 $name = $this->msg( 'days' )->numParams( $value )->text();
 623                         }
 624                         $select->addOption( $name, $value );
 625                 }
 626
 627                 return $select->getHTML() . "\n<br />\n";
 628         }
 629
 630         function setTopText( FormOptions $opts ) {
 631                 $nondefaults = $opts->getChangedValues();
 632                 $form = "";
 633                 $user = $this->getUser();
 634
 635                 $numItems = $this->countItems();
 636                 $showUpdatedMarker = $this->getConfig()->get( 'ShowUpdatedMarker' );
 637
 638                 // Show watchlist header
 639                 $form .= "<p>";
 640                 if ( $numItems == 0 ) {
 641                         $form .= $this->msg( 'nowatchlist' )->parse() . "\n";
 642                 } else {
 643                         $form .= $this->msg( 'watchlist-details' )->numParams( $numItems )->parse() . "\n";
 644                         if ( $this->getConfig()->get( 'EnotifWatchlist' )
 645                                 && $user->getOption( 'enotifwatchlistpages' )
 646                         ) {
 647                                 $form .= $this->msg( 'wlheader-enotif' )->parse() . "\n";
 648                         }
 649                         if ( $showUpdatedMarker ) {
 650                                 $form .= $this->msg( 'wlheader-showupdated' )->parse() . "\n";
 651                         }
 652                 }
 653                 $form .= "</p>";
 654
 655                 if ( $numItems > 0 && $showUpdatedMarker ) {
 656                         $form .= Xml::openElement( 'form', [ 'method' => 'post',
 657                                 'action' => $this->getPageTitle()->getLocalURL(),
 658                                 'id' => 'mw-watchlist-resetbutton' ] ) . "\n" .
 659                         Xml::submitButton( $this->msg( 'enotif_reset' )->text(),
 660                                 [ 'name' => 'mw-watchlist-reset-submit' ] ) . "\n" .
 661                         Html::hidden( 'reset', 'all' ) . "\n";
 662                         foreach ( $nondefaults as $key => $value ) {
 663                                 $form .= Html::hidden( $key, $value ) . "\n";
 664                         }
 665                         $form .= Xml::closeElement( 'form' ) . "\n";
 666                 }
 667
 668                 $form .= Xml::openElement( 'form', [
 669                         'method' => 'get',
 670                         'action' => wfScript(),
 671                         'id' => 'mw-watchlist-form'
 672                 ] );
 673                 $form .= Html::hidden( 'title', $this->getPageTitle()->getPrefixedText() );
 674                 $form .= Xml::fieldset(
 675                         $this->msg( 'watchlist-options' )->text(),
 676                         false,
 677                         [ 'id' => 'mw-watchlist-options' ]
 678                 );
 679
 680                 $form .= $this->makeLegend();
 681
 682                 $this->getOutput()->addHTML( $form );
 683         }
 684
 685         protected function showHideCheck( $options, $message, $name, $value ) {
 686                 $options[$name] = 1 - (int)$value;
 687
 688                 return '<span class="mw-input-with-label">' . Xml::checkLabel(
 689                         $this->msg( $message, '' )->text(),
 690                         $name,
 691                         $name,
 692                         (int)$value
 693                 ) . '</span>';
 694         }
 695
 696         /**
 697          * Count the number of paired items on a user's watchlist.
 698          * The assumption made here is that when a subject page is watched a talk page is also watched.
 699          * Hence the number of individual items is halved.
 700          *
 701          * @return int
 702          */
 703         protected function countItems() {
 704                 $store = MediaWikiServices::getInstance()->getWatchedItemStore();
 705                 $count = $store->countWatchedItems( $this->getUser() );
 706                 return floor( $count / 2 );
 707         }
 708 }