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