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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\Extension\DiscussionTools; |
| 4 | |
| 5 | use IContextSource; |
| 6 | use Language; |
| 7 | use MediaWiki\Config\ConfigException; |
| 8 | use MediaWiki\Extension\DiscussionTools\Hooks\HookRunner; |
| 9 | use MediaWiki\Extension\DiscussionTools\Hooks\HookUtils; |
| 10 | use MediaWiki\Extension\DiscussionTools\ThreadItem\ContentCommentItem; |
| 11 | use MediaWiki\Extension\DiscussionTools\ThreadItem\ContentHeadingItem; |
| 12 | use MediaWiki\Extension\DiscussionTools\ThreadItem\ContentThreadItem; |
| 13 | use MediaWiki\Extension\DiscussionTools\ThreadItem\ThreadItem; |
| 14 | use MediaWiki\Html\Html; |
| 15 | use MediaWiki\MediaWikiServices; |
| 16 | use MediaWiki\Parser\Sanitizer; |
| 17 | use MediaWiki\Request\WebRequest; |
| 18 | use MediaWiki\Title\Title; |
| 19 | use MediaWiki\User\UserIdentity; |
| 20 | use MediaWiki\Utils\MWTimestamp; |
| 21 | use MWExceptionHandler; |
| 22 | use ParserOutput; |
| 23 | use Throwable; |
| 24 | use Wikimedia\Assert\Assert; |
| 25 | use Wikimedia\Parsoid\DOM\Document; |
| 26 | use Wikimedia\Parsoid\DOM\Element; |
| 27 | use Wikimedia\Parsoid\Utils\DOMCompat; |
| 28 | use Wikimedia\Parsoid\Utils\DOMUtils; |
| 29 | use Wikimedia\Parsoid\Wt2Html\XMLSerializer; |
| 30 | use Wikimedia\Timestamp\TimestampException; |
| 31 | |
| 32 | class CommentFormatter { |
| 33 | // List of features which, when enabled, cause the comment formatter to run |
| 34 | public const USE_WITH_FEATURES = [ |
| 35 | HookUtils::REPLYTOOL, |
| 36 | HookUtils::TOPICSUBSCRIPTION, |
| 37 | HookUtils::VISUALENHANCEMENTS |
| 38 | ]; |
| 39 | |
| 40 | /** |
| 41 | * Get a comment parser object for a DOM element |
| 42 | * |
| 43 | * This method exists so it can mocked in tests. |
| 44 | */ |
| 45 | protected static function getParser(): CommentParser { |
| 46 | return MediaWikiServices::getInstance()->getService( 'DiscussionTools.CommentParser' ); |
| 47 | } |
| 48 | |
| 49 | protected static function getHookRunner(): HookRunner { |
| 50 | return new HookRunner( MediaWikiServices::getInstance()->getHookContainer() ); |
| 51 | } |
| 52 | |
| 53 | /** |
| 54 | * Add discussion tools to some HTML |
| 55 | * |
| 56 | * @param string &$text Parser text output (modified by reference) |
| 57 | * @param ParserOutput $pout ParserOutput object for metadata, e.g. parser limit report |
| 58 | * @param Title $title |
| 59 | */ |
| 60 | public static function addDiscussionTools( string &$text, ParserOutput $pout, Title $title ): void { |
| 61 | $start = microtime( true ); |
| 62 | $requestId = null; |
| 63 | |
| 64 | try { |
| 65 | $text = static::addDiscussionToolsInternal( $text, $pout, $title ); |
| 66 | |
| 67 | } catch ( Throwable $e ) { |
| 68 | // Catch errors, so that they don't cause the entire page to not display. |
| 69 | // Log it and report the request ID to make it easier to find in the logs. |
| 70 | MWExceptionHandler::logException( $e ); |
| 71 | $requestId = WebRequest::getRequestId(); |
| 72 | } |
| 73 | |
| 74 | $duration = microtime( true ) - $start; |
| 75 | |
| 76 | $stats = MediaWikiServices::getInstance()->getStatsdDataFactory(); |
| 77 | $stats->timing( 'discussiontools.addReplyLinks', $duration * 1000 ); |
| 78 | |
| 79 | // How long this method took, in seconds |
| 80 | $pout->setLimitReportData( |
| 81 | // The following messages can be generated upstream |
| 82 | // * discussiontools-limitreport-timeusage-value |
| 83 | // * discussiontools-limitreport-timeusage-value-text |
| 84 | // * discussiontools-limitreport-timeusage-value-html |
| 85 | 'discussiontools-limitreport-timeusage', |
| 86 | sprintf( '%.3f', $duration ) |
| 87 | ); |
| 88 | if ( $requestId ) { |
| 89 | // Request ID where errors were logged (only if an error occurred) |
| 90 | $pout->setLimitReportData( |
| 91 | 'discussiontools-limitreport-errorreqid', |
| 92 | $requestId |
| 93 | ); |
| 94 | } |
| 95 | } |
| 96 | |
| 97 | /** |
| 98 | * Add a wrapper, topic container, and subscribe link around a heading element |
| 99 | * |
| 100 | * @param Element $headingElement Heading element |
| 101 | * @param ContentHeadingItem|null $headingItem Heading item |
| 102 | * @param array|null &$tocInfo TOC info |
| 103 | * @return Element Wrapper element (either found or newly added) |
| 104 | */ |
| 105 | protected static function handleHeading( |
| 106 | Element $headingElement, |
| 107 | ?ContentHeadingItem $headingItem = null, |
| 108 | ?array &$tocInfo = null |
| 109 | ): Element { |
| 110 | $doc = $headingElement->ownerDocument; |
| 111 | $wrapperNode = $headingElement->parentNode; |
| 112 | if ( !( |
| 113 | $wrapperNode instanceof Element && |
| 114 | DOMCompat::getClassList( $wrapperNode )->contains( 'mw-heading' ) |
| 115 | ) ) { |
| 116 | // Do not add the wrapper if the heading has attributes generated from wikitext (T353489). |
| 117 | // Only allow reserved attributes (e.g. 'data-mw', which can't be used in wikitext, but which |
| 118 | // are used internally by our own code and by Parsoid) and the 'id' attribute used by Parsoid. |
| 119 | foreach ( $headingElement->attributes as $attr ) { |
| 120 | if ( $attr->name !== 'id' && !Sanitizer::isReservedDataAttribute( $attr->name ) ) { |
| 121 | return $headingElement; |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | $wrapperNode = $doc->createElement( 'div' ); |
| 126 | $headingElement->parentNode->insertBefore( $wrapperNode, $headingElement ); |
| 127 | $wrapperNode->appendChild( $headingElement ); |
| 128 | } |
| 129 | |
| 130 | if ( !$headingItem ) { |
| 131 | return $wrapperNode; |
| 132 | } |
| 133 | |
| 134 | $uneditable = DOMCompat::querySelector( $wrapperNode, 'mw\\:editsection' ) === null; |
| 135 | $headingItem->setUneditableSection( $uneditable ); |
| 136 | self::addOverflowMenuButton( $headingItem, $doc, $wrapperNode ); |
| 137 | |
| 138 | $latestReplyItem = $headingItem->getLatestReply(); |
| 139 | |
| 140 | $bar = null; |
| 141 | if ( $latestReplyItem ) { |
| 142 | $bar = $doc->createElement( 'div' ); |
| 143 | $bar->setAttribute( |
| 144 | 'class', |
| 145 | 'ext-discussiontools-init-section-bar' |
| 146 | ); |
| 147 | } |
| 148 | |
| 149 | self::addTopicContainer( |
| 150 | $wrapperNode, $latestReplyItem, $doc, $headingItem, $bar, $tocInfo |
| 151 | ); |
| 152 | |
| 153 | self::addSubscribeLink( |
| 154 | $headingItem, $doc, $wrapperNode, $latestReplyItem, $bar |
| 155 | ); |
| 156 | |
| 157 | if ( $latestReplyItem ) { |
| 158 | // The check for if ( $latestReplyItem ) prevents $bar from being null |
| 159 | // @phan-suppress-next-line PhanTypeMismatchArgumentNullable |
| 160 | $wrapperNode->appendChild( $bar ); |
| 161 | } |
| 162 | |
| 163 | return $wrapperNode; |
| 164 | } |
| 165 | |
| 166 | /** |
| 167 | * Add a topic container around a heading element. |
| 168 | * |
| 169 | * A topic container is the information displayed when the "Show discusion activity" user |
| 170 | * preference is selected. This displays information such as the latest comment time, number |
| 171 | * of comments, and number of editors in the discussion. |
| 172 | */ |
| 173 | protected static function addTopicContainer( |
| 174 | Element $wrapperNode, |
| 175 | ?ContentCommentItem $latestReplyItem, |
| 176 | Document $doc, |
| 177 | ContentHeadingItem $headingItem, |
| 178 | ?Element $bar, |
| 179 | array &$tocInfo |
| 180 | ) { |
| 181 | if ( !DOMCompat::getClassList( $wrapperNode )->contains( 'mw-heading' ) ) { |
| 182 | DOMCompat::getClassList( $wrapperNode )->add( 'mw-heading' ); |
| 183 | DOMCompat::getClassList( $wrapperNode )->add( 'mw-heading2' ); |
| 184 | } |
| 185 | DOMCompat::getClassList( $wrapperNode )->add( 'ext-discussiontools-init-section' ); |
| 186 | |
| 187 | if ( !$latestReplyItem ) { |
| 188 | return; |
| 189 | } |
| 190 | |
| 191 | $latestReplyJSON = json_encode( static::getJsonArrayForCommentMarker( $latestReplyItem ) ); |
| 192 | $latestReply = $doc->createComment( |
| 193 | // Timestamp output varies by user timezone, so is formatted later |
| 194 | '__DTLATESTCOMMENTTHREAD__' . htmlspecialchars( $latestReplyJSON, ENT_NOQUOTES ) . '__' |
| 195 | ); |
| 196 | |
| 197 | $commentCount = $doc->createComment( |
| 198 | '__DTCOMMENTCOUNT__' . $headingItem->getCommentCount() . '__' |
| 199 | ); |
| 200 | |
| 201 | $authorCount = $doc->createComment( |
| 202 | '__DTAUTHORCOUNT__' . count( $headingItem->getAuthorsBelow() ) . '__' |
| 203 | ); |
| 204 | |
| 205 | $metadata = $doc->createElement( 'div' ); |
| 206 | $metadata->setAttribute( |
| 207 | 'class', |
| 208 | 'ext-discussiontools-init-section-metadata' |
| 209 | ); |
| 210 | $metadata->appendChild( $latestReply ); |
| 211 | $metadata->appendChild( $commentCount ); |
| 212 | $metadata->appendChild( $authorCount ); |
| 213 | $bar->appendChild( $metadata ); |
| 214 | |
| 215 | $tocInfo[ $headingItem->getLinkableTitle() ] = [ |
| 216 | 'commentCount' => $headingItem->getCommentCount(), |
| 217 | ]; |
| 218 | } |
| 219 | |
| 220 | /** |
| 221 | * Add a subscribe/unsubscribe link to the right of a heading element |
| 222 | */ |
| 223 | protected static function addSubscribeLink( |
| 224 | ContentHeadingItem $headingItem, |
| 225 | Document $doc, |
| 226 | Element $wrapperNode, |
| 227 | ?ContentCommentItem $latestReplyItem, |
| 228 | ?Element $bar |
| 229 | ) { |
| 230 | $headingJSONEscaped = htmlspecialchars( |
| 231 | json_encode( static::getJsonForHeadingMarker( $headingItem ) ) |
| 232 | ); |
| 233 | |
| 234 | // Replaced in ::postprocessTopicSubscription() as the text depends on user state |
| 235 | if ( $headingItem->isSubscribable() ) { |
| 236 | $subscribeButton = $doc->createComment( '__DTSUBSCRIBEBUTTONDESKTOP__' . $headingJSONEscaped ); |
| 237 | $wrapperNode->insertBefore( $subscribeButton, $wrapperNode->firstChild ); |
| 238 | } |
| 239 | |
| 240 | if ( !$latestReplyItem ) { |
| 241 | return; |
| 242 | } |
| 243 | |
| 244 | $actions = $doc->createElement( 'div' ); |
| 245 | $actions->setAttribute( |
| 246 | 'class', |
| 247 | 'ext-discussiontools-init-section-actions' |
| 248 | ); |
| 249 | if ( $headingItem->isSubscribable() ) { |
| 250 | $subscribeButton = $doc->createComment( '__DTSUBSCRIBEBUTTONMOBILE__' . $headingJSONEscaped ); |
| 251 | $actions->appendChild( $subscribeButton ); |
| 252 | } |
| 253 | $bar->appendChild( $actions ); |
| 254 | } |
| 255 | |
| 256 | /** |
| 257 | * Add discussion tools to some HTML |
| 258 | * |
| 259 | * @param string $html HTML |
| 260 | * @param ParserOutput $pout |
| 261 | * @param Title $title |
| 262 | * @return string HTML with discussion tools |
| 263 | */ |
| 264 | protected static function addDiscussionToolsInternal( string $html, ParserOutput $pout, Title $title ): string { |
| 265 | // The output of this method can end up in the HTTP cache (Varnish). Avoid changing it; |
| 266 | // and when doing so, ensure that frontend code can handle both the old and new outputs. |
| 267 | // See controller#init in JS. |
| 268 | |
| 269 | $doc = DOMUtils::parseHTML( $html ); |
| 270 | $container = DOMCompat::getBody( $doc ); |
| 271 | |
| 272 | $threadItemSet = static::getParser()->parse( $container, $title->getTitleValue() ); |
| 273 | $threadItems = $threadItemSet->getThreadItems(); |
| 274 | |
| 275 | $tocInfo = []; |
| 276 | |
| 277 | $newestComment = null; |
| 278 | $newestCommentData = null; |
| 279 | |
| 280 | $url = $title->getCanonicalURL(); |
| 281 | $dtConfig = MediaWikiServices::getInstance()->getConfigFactory()->makeConfig( 'discussiontools' ); |
| 282 | $enablePermalinksFrontend = $dtConfig->get( 'DiscussionToolsEnablePermalinksFrontend' ); |
| 283 | |
| 284 | // Iterate in reverse order, because adding the range markers for a thread item |
| 285 | // can invalidate the ranges of subsequent thread items (T298096) |
| 286 | foreach ( array_reverse( $threadItems ) as $threadItem ) { |
| 287 | // Create a dummy node to attach data to. |
| 288 | if ( $threadItem instanceof ContentHeadingItem && $threadItem->isPlaceholderHeading() ) { |
| 289 | $node = $doc->createElement( 'span' ); |
| 290 | $container->insertBefore( $node, $container->firstChild ); |
| 291 | $threadItem->setRange( new ImmutableRange( $node, 0, $node, 0 ) ); |
| 292 | } |
| 293 | |
| 294 | // Add start and end markers to range |
| 295 | $id = $threadItem->getId(); |
| 296 | $range = $threadItem->getRange(); |
| 297 | $startMarker = $doc->createElement( 'span' ); |
| 298 | $startMarker->setAttribute( 'data-mw-comment-start', '' ); |
| 299 | $startMarker->setAttribute( 'id', $id ); |
| 300 | $endMarker = $doc->createElement( 'span' ); |
| 301 | $endMarker->setAttribute( 'data-mw-comment-end', $id ); |
| 302 | |
| 303 | // Extend the range if the start or end is inside an element which can't have element children. |
| 304 | // (There may be other problematic elements... but this seems like a good start.) |
| 305 | while ( CommentUtils::cantHaveElementChildren( $range->startContainer ) ) { |
| 306 | $range = $range->setStart( |
| 307 | $range->startContainer->parentNode, |
| 308 | CommentUtils::childIndexOf( $range->startContainer ) |
| 309 | ); |
| 310 | } |
| 311 | while ( CommentUtils::cantHaveElementChildren( $range->endContainer ) ) { |
| 312 | $range = $range->setEnd( |
| 313 | $range->endContainer->parentNode, |
| 314 | CommentUtils::childIndexOf( $range->endContainer ) + 1 |
| 315 | ); |
| 316 | } |
| 317 | |
| 318 | $range->setStart( $range->endContainer, $range->endOffset )->insertNode( $endMarker ); |
| 319 | // Start marker is added after reply link to keep reverse DOM order |
| 320 | |
| 321 | if ( $threadItem instanceof ContentHeadingItem ) { |
| 322 | // <span class="mw-headline" …>, or <hN …> in Parsoid HTML |
| 323 | $headline = $threadItem->getRange()->endContainer; |
| 324 | Assert::precondition( $headline instanceof Element, 'HeadingItem refers to an element node' ); |
| 325 | $headline->setAttribute( 'data-mw-thread-id', $threadItem->getId() ); |
| 326 | if ( $threadItem->getHeadingLevel() === 2 ) { |
| 327 | $headingElement = CommentUtils::closestElement( $headline, [ 'h2' ] ); |
| 328 | |
| 329 | if ( $headingElement ) { |
| 330 | static::handleHeading( $headingElement, $threadItem, $tocInfo ); |
| 331 | } |
| 332 | } |
| 333 | } elseif ( $threadItem instanceof ContentCommentItem ) { |
| 334 | $replyButtons = $doc->createElement( 'span' ); |
| 335 | $replyButtons->setAttribute( 'class', 'ext-discussiontools-init-replylink-buttons' ); |
| 336 | $replyButtons->setAttribute( 'data-mw-thread-id', $threadItem->getId() ); |
| 337 | $replyButtons->appendChild( $doc->createComment( '__DTREPLYBUTTONSCONTENT__' ) ); |
| 338 | |
| 339 | if ( !$newestComment || $threadItem->getTimestamp() > $newestComment->getTimestamp() ) { |
| 340 | $newestComment = $threadItem; |
| 341 | // Needs to calculated before DOM modifications change ranges |
| 342 | $newestCommentData = static::getJsonArrayForCommentMarker( $threadItem, true ); |
| 343 | } |
| 344 | |
| 345 | CommentModifier::addReplyLink( $threadItem, $replyButtons ); |
| 346 | |
| 347 | if ( $enablePermalinksFrontend ) { |
| 348 | $timestampRanges = $threadItem->getTimestampRanges(); |
| 349 | $lastTimestamp = end( $timestampRanges ); |
| 350 | $existingLink = CommentUtils::closestElement( $lastTimestamp->startContainer, [ 'a' ] ) ?? |
| 351 | CommentUtils::closestElement( $lastTimestamp->endContainer, [ 'a' ] ); |
| 352 | |
| 353 | if ( !$existingLink ) { |
| 354 | $link = $doc->createElement( 'a' ); |
| 355 | $link->setAttribute( 'href', $url . '#' . Sanitizer::escapeIdForLink( $threadItem->getId() ) ); |
| 356 | $link->setAttribute( 'class', 'ext-discussiontools-init-timestamplink' ); |
| 357 | $lastTimestamp->surroundContents( $link ); |
| 358 | } |
| 359 | } |
| 360 | self::addOverflowMenuButton( $threadItem, $doc, $replyButtons ); |
| 361 | } |
| 362 | |
| 363 | $range->insertNode( $startMarker ); |
| 364 | } |
| 365 | |
| 366 | $pout->setExtensionData( 'DiscussionTools-tocInfo', $tocInfo ); |
| 367 | |
| 368 | if ( $newestCommentData ) { |
| 369 | $pout->setExtensionData( 'DiscussionTools-newestComment', $newestCommentData ); |
| 370 | } |
| 371 | |
| 372 | $startOfSections = DOMCompat::querySelector( $container, 'meta[property="mw:PageProp/toc"]' ); |
| 373 | |
| 374 | // Enhance other <h2>'s which aren't part of a thread |
| 375 | $headings = DOMCompat::querySelectorAll( $container, 'h2' ); |
| 376 | foreach ( $headings as $headingElement ) { |
| 377 | $wrapper = $headingElement->parentNode; |
| 378 | if ( $wrapper instanceof Element && DOMCompat::getClassList( $wrapper )->contains( 'toctitle' ) ) { |
| 379 | continue; |
| 380 | } |
| 381 | $headingElement = static::handleHeading( $headingElement ); |
| 382 | if ( !$startOfSections ) { |
| 383 | $startOfSections = $headingElement; |
| 384 | } |
| 385 | } |
| 386 | |
| 387 | if ( |
| 388 | // Page has no headings but some content |
| 389 | ( !$startOfSections && $container->childNodes->length ) || |
| 390 | // Page has content before the first heading / TOC |
| 391 | ( $startOfSections && $startOfSections->previousSibling !== null ) |
| 392 | ) { |
| 393 | $pout->setExtensionData( 'DiscussionTools-hasLedeContent', true ); |
| 394 | } |
| 395 | if ( |
| 396 | // Placeholder heading indicates that there are comments in the lede section (T324139). |
| 397 | // We can't really separate them from the lede content. |
| 398 | isset( $threadItems[0] ) && |
| 399 | $threadItems[0] instanceof ContentHeadingItem && |
| 400 | $threadItems[0]->isPlaceholderHeading() |
| 401 | ) { |
| 402 | $pout->setExtensionData( 'DiscussionTools-hasCommentsInLedeContent', true ); |
| 403 | MediaWikiServices::getInstance()->getTrackingCategories() |
| 404 | // The following messages are generated upstream: |
| 405 | // * discussiontools-comments-before-first-heading-category-desc |
| 406 | ->addTrackingCategory( $pout, 'discussiontools-comments-before-first-heading-category', $title ); |
| 407 | } |
| 408 | |
| 409 | if ( count( $threadItems ) === 0 ) { |
| 410 | $pout->setExtensionData( 'DiscussionTools-isEmptyTalkPage', true ); |
| 411 | } |
| 412 | |
| 413 | $threadsJSON = array_map( static function ( ContentThreadItem $item ) { |
| 414 | return $item->jsonSerialize( true ); |
| 415 | }, $threadItemSet->getThreadsStructured() ); |
| 416 | |
| 417 | // Temporary hack to deal with T351461#9358034: this should be a |
| 418 | // call to `setJsConfigVar` but Parsoid is currently reprocessing |
| 419 | // content from extensions. |
| 420 | $pout->addJsConfigVars( 'wgDiscussionToolsPageThreads', $threadsJSON ); |
| 421 | |
| 422 | // Like DOMCompat::getInnerHTML(), but disable 'smartQuote' for compatibility with |
| 423 | // ParserOutput::EDITSECTION_REGEX matching 'mw:editsection' tags (T274709) |
| 424 | $html = XMLSerializer::serialize( $container, [ 'innerXML' => true, 'smartQuote' => false ] )['html']; |
| 425 | |
| 426 | return $html; |
| 427 | } |
| 428 | |
| 429 | /** |
| 430 | * Add an overflow menu button to an element. |
| 431 | * |
| 432 | * @param ThreadItem $threadItem The heading or comment item |
| 433 | * @param Document $document Retrieved by parsing page HTML |
| 434 | * @param Element $element The element to add the overflow menu button to |
| 435 | * @return void |
| 436 | */ |
| 437 | protected static function addOverflowMenuButton( |
| 438 | ThreadItem $threadItem, Document $document, Element $element |
| 439 | ): void { |
| 440 | $overflowMenuDataJSON = json_encode( [ 'threadItem' => $threadItem ] ); |
| 441 | |
| 442 | $overflowMenuButton = $document->createComment( |
| 443 | '__DTELLIPSISBUTTON__' . htmlspecialchars( $overflowMenuDataJSON, ENT_NOQUOTES ) |
| 444 | ); |
| 445 | $element->appendChild( $overflowMenuButton ); |
| 446 | } |
| 447 | |
| 448 | /** |
| 449 | * Replace placeholders for all interactive tools with nothing. This is intended for cases where |
| 450 | * interaction is unexpected, e.g. reply links while previewing an edit. |
| 451 | */ |
| 452 | public static function removeInteractiveTools( string $text ): string { |
| 453 | $text = strtr( $text, [ |
| 454 | '<!--__DTREPLYBUTTONSCONTENT__-->' => '', |
| 455 | ] ); |
| 456 | |
| 457 | $text = preg_replace( '/<!--__DTELLIPSISBUTTON__(.*?)-->/', '', $text ); |
| 458 | $text = preg_replace( '/<!--__DTSUBSCRIBEBUTTON(DESKTOP|MOBILE)__(.*?)-->/', '', $text ); |
| 459 | |
| 460 | return $text; |
| 461 | } |
| 462 | |
| 463 | /** |
| 464 | * Replace placeholders for topic subscription buttons with the real thing. |
| 465 | */ |
| 466 | public static function postprocessTopicSubscription( |
| 467 | string $text, IContextSource $contextSource, |
| 468 | SubscriptionStore $subscriptionStore, bool $isMobile, bool $useButtons |
| 469 | ): string { |
| 470 | $doc = DOMCompat::newDocument( true ); |
| 471 | |
| 472 | $matches = []; |
| 473 | $itemDataByName = []; |
| 474 | preg_match_all( '/<!--__DTSUBSCRIBEBUTTONDESKTOP__(.*?)-->/', $text, $matches ); |
| 475 | foreach ( $matches[1] as $itemData ) { |
| 476 | $itemDataByName[ $itemData ] = json_decode( htmlspecialchars_decode( $itemData ), true ); |
| 477 | } |
| 478 | $itemNames = array_column( $itemDataByName, 'name' ); |
| 479 | |
| 480 | $user = $contextSource->getUser(); |
| 481 | $items = $subscriptionStore->getSubscriptionItemsForUser( |
| 482 | $user, |
| 483 | $itemNames |
| 484 | ); |
| 485 | $itemsByName = []; |
| 486 | foreach ( $items as $item ) { |
| 487 | $itemsByName[ $item->getItemName() ] = $item; |
| 488 | } |
| 489 | |
| 490 | $lang = $contextSource->getLanguage(); |
| 491 | $title = $contextSource->getTitle(); |
| 492 | $text = preg_replace_callback( |
| 493 | '/<!--__(DTSUBSCRIBEBUTTON(?:DESKTOP|MOBILE))__(.*?)-->/', |
| 494 | static function ( $matches ) use ( |
| 495 | $doc, $itemsByName, $itemDataByName, $lang, $title, $isMobile, $useButtons |
| 496 | ) { |
| 497 | $buttonIsMobile = $matches[1] === 'DTSUBSCRIBEBUTTONMOBILE'; |
| 498 | |
| 499 | $itemData = $itemDataByName[ $matches[2] ]; |
| 500 | '@phan-var array $itemData'; |
| 501 | $itemName = $itemData['name']; |
| 502 | |
| 503 | $isSubscribed = isset( $itemsByName[ $itemName ] ) && !$itemsByName[ $itemName ]->isMuted(); |
| 504 | $subscribedState = isset( $itemsByName[ $itemName ] ) ? $itemsByName[ $itemName ]->getState() : null; |
| 505 | |
| 506 | $href = $title->getLinkURL( [ |
| 507 | 'action' => $isSubscribed ? 'dtunsubscribe' : 'dtsubscribe', |
| 508 | 'commentname' => $itemName, |
| 509 | 'section' => $itemData['linkableTitle'], |
| 510 | ] ); |
| 511 | |
| 512 | if ( $buttonIsMobile !== $isMobile ) { |
| 513 | return ''; |
| 514 | } |
| 515 | |
| 516 | if ( !$useButtons ) { |
| 517 | $subscribe = $doc->createElement( 'span' ); |
| 518 | $subscribe->setAttribute( |
| 519 | 'class', |
| 520 | 'ext-discussiontools-init-section-subscribe mw-editsection-like' |
| 521 | ); |
| 522 | |
| 523 | $subscribeLink = $doc->createElement( 'a' ); |
| 524 | $subscribeLink->setAttribute( 'href', $href ); |
| 525 | $subscribeLink->setAttribute( 'class', 'ext-discussiontools-init-section-subscribe-link' ); |
| 526 | $subscribeLink->setAttribute( 'role', 'button' ); |
| 527 | $subscribeLink->setAttribute( 'tabindex', '0' ); |
| 528 | $subscribeLink->setAttribute( 'title', wfMessage( |
| 529 | $isSubscribed ? |
| 530 | 'discussiontools-topicsubscription-button-unsubscribe-tooltip' : |
| 531 | 'discussiontools-topicsubscription-button-subscribe-tooltip' |
| 532 | )->inLanguage( $lang )->text() ); |
| 533 | $subscribeLink->nodeValue = wfMessage( |
| 534 | $isSubscribed ? |
| 535 | 'discussiontools-topicsubscription-button-unsubscribe' : |
| 536 | 'discussiontools-topicsubscription-button-subscribe' |
| 537 | )->inLanguage( $lang )->text(); |
| 538 | |
| 539 | if ( $subscribedState !== null ) { |
| 540 | $subscribeLink->setAttribute( 'data-mw-subscribed', (string)$subscribedState ); |
| 541 | } |
| 542 | |
| 543 | $bracket = $doc->createElement( 'span' ); |
| 544 | $bracket->setAttribute( 'class', 'ext-discussiontools-init-section-subscribe-bracket' ); |
| 545 | $bracketOpen = $bracket->cloneNode( false ); |
| 546 | $bracketOpen->nodeValue = '['; |
| 547 | $bracketClose = $bracket->cloneNode( false ); |
| 548 | $bracketClose->nodeValue = ']'; |
| 549 | |
| 550 | $subscribe->appendChild( $bracketOpen ); |
| 551 | $subscribe->appendChild( $subscribeLink ); |
| 552 | $subscribe->appendChild( $bracketClose ); |
| 553 | |
| 554 | return DOMCompat::getOuterHTML( $subscribe ); |
| 555 | } else { |
| 556 | $subscribe = new \OOUI\ButtonWidget( [ |
| 557 | 'classes' => [ 'ext-discussiontools-init-section-subscribeButton' ], |
| 558 | 'framed' => false, |
| 559 | 'icon' => $isSubscribed ? 'bell' : 'bellOutline', |
| 560 | 'flags' => [ 'progressive' ], |
| 561 | 'href' => $href, |
| 562 | 'label' => wfMessage( $isSubscribed ? |
| 563 | 'discussiontools-topicsubscription-button-unsubscribe-label' : |
| 564 | 'discussiontools-topicsubscription-button-subscribe-label' |
| 565 | )->inLanguage( $lang )->text(), |
| 566 | 'title' => wfMessage( $isSubscribed ? |
| 567 | 'discussiontools-topicsubscription-button-unsubscribe-tooltip' : |
| 568 | 'discussiontools-topicsubscription-button-subscribe-tooltip' |
| 569 | )->inLanguage( $lang )->text(), |
| 570 | 'infusable' => true, |
| 571 | ] ); |
| 572 | |
| 573 | if ( $subscribedState !== null ) { |
| 574 | $subscribe->setAttributes( [ 'data-mw-subscribed' => (string)$subscribedState ] ); |
| 575 | } |
| 576 | |
| 577 | return $subscribe->toString(); |
| 578 | } |
| 579 | }, |
| 580 | $text |
| 581 | ); |
| 582 | |
| 583 | return $text; |
| 584 | } |
| 585 | |
| 586 | /** |
| 587 | * Replace placeholders for reply links with the real thing. |
| 588 | */ |
| 589 | public static function postprocessReplyTool( |
| 590 | string $text, IContextSource $contextSource, bool $isMobile, bool $useButtons |
| 591 | ): string { |
| 592 | $doc = DOMCompat::newDocument( true ); |
| 593 | |
| 594 | $lang = $contextSource->getLanguage(); |
| 595 | $replyLinkText = wfMessage( 'discussiontools-replylink' )->inLanguage( $lang )->escaped(); |
| 596 | $replyButtonText = wfMessage( 'discussiontools-replybutton' )->inLanguage( $lang )->escaped(); |
| 597 | |
| 598 | $text = preg_replace_callback( |
| 599 | '/<!--__DTREPLYBUTTONSCONTENT__-->/', |
| 600 | static function ( $matches ) use ( $doc, $replyLinkText, $replyButtonText, $isMobile, $useButtons, $lang ) { |
| 601 | $replyLinkButtons = $doc->createElement( 'span' ); |
| 602 | |
| 603 | if ( $useButtons ) { |
| 604 | // Visual enhancements button |
| 605 | $useIcon = $isMobile || static::isLanguageRequiringReplyIcon( $lang ); |
| 606 | $replyLinkButton = new \OOUI\ButtonWidget( [ |
| 607 | 'classes' => [ 'ext-discussiontools-init-replybutton' ], |
| 608 | 'framed' => false, |
| 609 | 'label' => $replyButtonText, |
| 610 | 'icon' => $useIcon ? 'share' : null, |
| 611 | 'flags' => [ 'progressive' ], |
| 612 | 'infusable' => true, |
| 613 | ] ); |
| 614 | |
| 615 | DOMCompat::setInnerHTML( $replyLinkButtons, $replyLinkButton->toString() ); |
| 616 | } else { |
| 617 | // Reply link |
| 618 | $replyLink = $doc->createElement( 'a' ); |
| 619 | $replyLink->setAttribute( 'class', 'ext-discussiontools-init-replylink-reply' ); |
| 620 | $replyLink->setAttribute( 'role', 'button' ); |
| 621 | $replyLink->setAttribute( 'tabindex', '0' ); |
| 622 | // Set empty 'href' to avoid a:not([href]) selector in MobileFrontend |
| 623 | $replyLink->setAttribute( 'href', '' ); |
| 624 | $replyLink->textContent = $replyLinkText; |
| 625 | |
| 626 | $bracket = $doc->createElement( 'span' ); |
| 627 | $bracket->setAttribute( 'class', 'ext-discussiontools-init-replylink-bracket' ); |
| 628 | $bracketOpen = $bracket->cloneNode( false ); |
| 629 | $bracketClose = $bracket->cloneNode( false ); |
| 630 | $bracketOpen->textContent = '['; |
| 631 | $bracketClose->textContent = ']'; |
| 632 | |
| 633 | $replyLinkButtons->appendChild( $bracketOpen ); |
| 634 | $replyLinkButtons->appendChild( $replyLink ); |
| 635 | $replyLinkButtons->appendChild( $bracketClose ); |
| 636 | } |
| 637 | |
| 638 | return DOMCompat::getInnerHTML( $replyLinkButtons ); |
| 639 | }, |
| 640 | $text |
| 641 | ); |
| 642 | |
| 643 | return $text; |
| 644 | } |
| 645 | |
| 646 | /** |
| 647 | * Create a meta item label |
| 648 | * |
| 649 | * @param string $className |
| 650 | * @param string|\OOUI\HtmlSnippet $label Label |
| 651 | * @return \OOUI\Tag |
| 652 | */ |
| 653 | private static function metaLabel( string $className, $label ): \OOUI\Tag { |
| 654 | return ( new \OOUI\Tag( 'span' ) ) |
| 655 | ->addClasses( [ 'ext-discussiontools-init-section-metaitem', $className ] ) |
| 656 | ->appendContent( $label ); |
| 657 | } |
| 658 | |
| 659 | /** |
| 660 | * Get JSON data for a commentItem that can be inserted into a comment marker |
| 661 | * |
| 662 | * @param ContentCommentItem $commentItem Comment item |
| 663 | * @param bool $includeTopicAndAuthor Include metadata about topic and author |
| 664 | * @return array |
| 665 | */ |
| 666 | private static function getJsonArrayForCommentMarker( |
| 667 | ContentCommentItem $commentItem, |
| 668 | bool $includeTopicAndAuthor = false |
| 669 | ): array { |
| 670 | $JSON = [ |
| 671 | 'id' => $commentItem->getId(), |
| 672 | 'timestamp' => $commentItem->getTimestampString() |
| 673 | ]; |
| 674 | if ( $includeTopicAndAuthor ) { |
| 675 | $JSON['author'] = $commentItem->getAuthor(); |
| 676 | $heading = $commentItem->getSubscribableHeading(); |
| 677 | if ( $heading ) { |
| 678 | $JSON['heading'] = static::getJsonForHeadingMarker( $heading ); |
| 679 | } |
| 680 | } |
| 681 | return $JSON; |
| 682 | } |
| 683 | |
| 684 | private static function getJsonForHeadingMarker( ContentHeadingItem $heading ): array { |
| 685 | $JSON = $heading->jsonSerialize(); |
| 686 | $JSON['text'] = $heading->getText(); |
| 687 | $JSON['linkableTitle'] = $heading->getLinkableTitle(); |
| 688 | return $JSON; |
| 689 | } |
| 690 | |
| 691 | /** |
| 692 | * Get a relative timestamp from a signature timestamp. |
| 693 | * |
| 694 | * Signature timestamps don't have seconds-level accuracy, so any |
| 695 | * time difference of less than 120 seconds is treated as being |
| 696 | * posted "just now". |
| 697 | */ |
| 698 | public static function getSignatureRelativeTime( |
| 699 | MWTimestamp $timestamp, Language $lang, UserIdentity $user |
| 700 | ): string { |
| 701 | try { |
| 702 | $diff = time() - intval( $timestamp->getTimestamp() ); |
| 703 | } catch ( TimestampException $ex ) { |
| 704 | // Can't happen |
| 705 | $diff = 0; |
| 706 | } |
| 707 | if ( $diff < 120 ) { |
| 708 | $timestamp = new MWTimestamp(); |
| 709 | } |
| 710 | return $lang->getHumanTimestamp( $timestamp, null, $user ); |
| 711 | } |
| 712 | |
| 713 | /** |
| 714 | * Post-process visual enhancements features (topic containers) |
| 715 | */ |
| 716 | public static function postprocessVisualEnhancements( |
| 717 | string $text, IContextSource $contextSource, bool $isMobile |
| 718 | ): string { |
| 719 | $lang = $contextSource->getLanguage(); |
| 720 | $user = $contextSource->getUser(); |
| 721 | $text = preg_replace_callback( |
| 722 | '/<!--__DTLATESTCOMMENTTHREAD__(.*?)__-->/', |
| 723 | static function ( $matches ) use ( $lang, $user ) { |
| 724 | $itemData = json_decode( htmlspecialchars_decode( $matches[1] ), true ); |
| 725 | if ( $itemData && $itemData['timestamp'] && $itemData['id'] ) { |
| 726 | $relativeTime = static::getSignatureRelativeTime( |
| 727 | new MWTimestamp( $itemData['timestamp'] ), |
| 728 | $lang, |
| 729 | $user |
| 730 | ); |
| 731 | $commentLink = Html::element( 'a', [ |
| 732 | 'href' => '#' . Sanitizer::escapeIdForLink( $itemData['id'] ) |
| 733 | ], $relativeTime ); |
| 734 | |
| 735 | $label = wfMessage( 'discussiontools-topicheader-latestcomment' ) |
| 736 | ->rawParams( $commentLink ) |
| 737 | ->inLanguage( $lang )->escaped(); |
| 738 | |
| 739 | return CommentFormatter::metaLabel( |
| 740 | 'ext-discussiontools-init-section-timestampLabel', |
| 741 | new \OOUI\HtmlSnippet( $label ) |
| 742 | ); |
| 743 | } |
| 744 | }, |
| 745 | $text |
| 746 | ); |
| 747 | $text = preg_replace_callback( |
| 748 | '/<!--__DTCOMMENTCOUNT__([0-9]+)__-->/', |
| 749 | static function ( $matches ) use ( $lang, $user ) { |
| 750 | $count = $lang->formatNum( $matches[1] ); |
| 751 | $label = wfMessage( |
| 752 | 'discussiontools-topicheader-commentcount', |
| 753 | $count |
| 754 | )->inLanguage( $lang )->text(); |
| 755 | return CommentFormatter::metaLabel( |
| 756 | 'ext-discussiontools-init-section-commentCountLabel', |
| 757 | $label |
| 758 | ); |
| 759 | }, |
| 760 | $text |
| 761 | ); |
| 762 | $text = preg_replace_callback( |
| 763 | '/<!--__DTAUTHORCOUNT__([0-9]+)__-->/', |
| 764 | static function ( $matches ) use ( $lang, $user ) { |
| 765 | $count = $lang->formatNum( $matches[1] ); |
| 766 | $label = wfMessage( |
| 767 | 'discussiontools-topicheader-authorcount', |
| 768 | $count |
| 769 | )->inLanguage( $lang )->text(); |
| 770 | return CommentFormatter::metaLabel( |
| 771 | 'ext-discussiontools-init-section-authorCountLabel', |
| 772 | $label |
| 773 | ); |
| 774 | }, |
| 775 | $text |
| 776 | ); |
| 777 | $text = preg_replace_callback( |
| 778 | '/<!--__DTELLIPSISBUTTON__(.*?)-->/', |
| 779 | static function ( $matches ) use ( $contextSource, $isMobile ) { |
| 780 | $overflowMenuData = json_decode( htmlspecialchars_decode( $matches[1] ), true ) ?? []; |
| 781 | |
| 782 | // TODO: Remove the fallback to empty array after the parser cache is updated. |
| 783 | $threadItem = $overflowMenuData['threadItem'] ?? []; |
| 784 | // TODO: Remove $overflowMenuData['editable'] after caches clear |
| 785 | if ( isset( $overflowMenuData['editable'] ) ) { |
| 786 | $threadItem['uneditableSection'] = !$overflowMenuData['editable']; |
| 787 | } |
| 788 | $threadItemType = $threadItem['type'] ?? null; |
| 789 | if ( !$isMobile && $threadItemType === 'heading' ) { |
| 790 | // Displaying the overflow menu next to a topic heading is a bit more |
| 791 | // complicated on desktop, so leaving it out for now. |
| 792 | return ''; |
| 793 | } |
| 794 | $overflowMenuItems = []; |
| 795 | $resourceLoaderModules = []; |
| 796 | |
| 797 | self::getHookRunner()->onDiscussionToolsAddOverflowMenuItems( |
| 798 | $overflowMenuItems, |
| 799 | $resourceLoaderModules, |
| 800 | $threadItem, |
| 801 | $contextSource |
| 802 | ); |
| 803 | |
| 804 | if ( $overflowMenuItems ) { |
| 805 | usort( |
| 806 | $overflowMenuItems, |
| 807 | static function ( OverflowMenuItem $itemA, OverflowMenuItem $itemB ): int { |
| 808 | return $itemB->getWeight() - $itemA->getWeight(); |
| 809 | } |
| 810 | ); |
| 811 | |
| 812 | $overflowButton = new ButtonMenuSelectWidget( [ |
| 813 | 'classes' => [ |
| 814 | 'ext-discussiontools-init-section-overflowMenuButton' |
| 815 | ], |
| 816 | 'framed' => false, |
| 817 | 'icon' => 'ellipsis', |
| 818 | 'infusable' => true, |
| 819 | 'data' => [ |
| 820 | 'itemConfigs' => $overflowMenuItems, |
| 821 | 'resourceLoaderModules' => $resourceLoaderModules |
| 822 | ] |
| 823 | ] ); |
| 824 | return $overflowButton->toString(); |
| 825 | } else { |
| 826 | return ''; |
| 827 | } |
| 828 | }, |
| 829 | $text |
| 830 | ); |
| 831 | |
| 832 | return $text; |
| 833 | } |
| 834 | |
| 835 | /** |
| 836 | * Post-process visual enhancements features for page subtitle |
| 837 | */ |
| 838 | public static function postprocessVisualEnhancementsSubtitle( |
| 839 | ParserOutput $pout, IContextSource $contextSource |
| 840 | ): ?string { |
| 841 | $itemData = $pout->getExtensionData( 'DiscussionTools-newestComment' ); |
| 842 | if ( $itemData && $itemData['timestamp'] && $itemData['id'] ) { |
| 843 | $lang = $contextSource->getLanguage(); |
| 844 | $user = $contextSource->getUser(); |
| 845 | $relativeTime = static::getSignatureRelativeTime( |
| 846 | new MWTimestamp( $itemData['timestamp'] ), |
| 847 | $lang, |
| 848 | $user |
| 849 | ); |
| 850 | $commentLink = Html::element( 'a', [ |
| 851 | 'href' => '#' . Sanitizer::escapeIdForLink( $itemData['id'] ) |
| 852 | ], $relativeTime ); |
| 853 | |
| 854 | if ( isset( $itemData['heading'] ) ) { |
| 855 | $headingLink = Html::element( 'a', [ |
| 856 | 'href' => '#' . Sanitizer::escapeIdForLink( $itemData['heading']['linkableTitle'] ) |
| 857 | ], $itemData['heading']['text'] ); |
| 858 | $label = wfMessage( 'discussiontools-pageframe-latestcomment' ) |
| 859 | ->rawParams( $commentLink ) |
| 860 | ->params( $itemData['author'] ) |
| 861 | ->rawParams( $headingLink ) |
| 862 | ->inLanguage( $lang )->escaped(); |
| 863 | } else { |
| 864 | $label = wfMessage( 'discussiontools-pageframe-latestcomment-notopic' ) |
| 865 | ->rawParams( $commentLink ) |
| 866 | ->params( $itemData['author'] ) |
| 867 | ->inLanguage( $lang )->escaped(); |
| 868 | } |
| 869 | |
| 870 | return Html::rawElement( |
| 871 | 'div', |
| 872 | [ 'class' => 'ext-discussiontools-init-pageframe-latestcomment' ], |
| 873 | $label |
| 874 | ); |
| 875 | } |
| 876 | return null; |
| 877 | } |
| 878 | |
| 879 | /** |
| 880 | * Post-process visual enhancements features for table of contents |
| 881 | */ |
| 882 | public static function postprocessTableOfContents( |
| 883 | ParserOutput $pout, IContextSource $contextSource |
| 884 | ): void { |
| 885 | $tocInfo = $pout->getExtensionData( 'DiscussionTools-tocInfo' ); |
| 886 | |
| 887 | if ( $tocInfo && $pout->getTOCData() ) { |
| 888 | $sections = $pout->getTOCData()->getSections(); |
| 889 | foreach ( $sections as $item ) { |
| 890 | $key = str_replace( '_', ' ', $item->anchor ); |
| 891 | // Unset if we did not format this section as a topic container |
| 892 | if ( isset( $tocInfo[$key] ) ) { |
| 893 | $lang = $contextSource->getLanguage(); |
| 894 | $count = $lang->formatNum( $tocInfo[$key]['commentCount'] ); |
| 895 | $commentCount = wfMessage( |
| 896 | 'discussiontools-topicheader-commentcount', |
| 897 | $count |
| 898 | )->inLanguage( $lang )->text(); |
| 899 | |
| 900 | $summary = Html::element( 'span', [ |
| 901 | 'class' => 'ext-discussiontools-init-sidebar-meta' |
| 902 | ], $commentCount ); |
| 903 | } else { |
| 904 | $summary = ''; |
| 905 | } |
| 906 | |
| 907 | // This also shows up in API action=parse&prop=sections output. |
| 908 | $item->setExtensionData( 'DiscussionTools-html-summary', $summary ); |
| 909 | } |
| 910 | } |
| 911 | } |
| 912 | |
| 913 | /** |
| 914 | * Check if the talk page had no comments or headings. |
| 915 | */ |
| 916 | public static function isEmptyTalkPage( ParserOutput $pout ): bool { |
| 917 | return $pout->getExtensionData( 'DiscussionTools-isEmptyTalkPage' ) === true; |
| 918 | } |
| 919 | |
| 920 | /** |
| 921 | * Append content to an empty talk page |
| 922 | */ |
| 923 | public static function appendToEmptyTalkPage( ParserOutput $pout, string $content ): void { |
| 924 | $text = $pout->getRawText(); |
| 925 | $text .= $content; |
| 926 | $pout->setText( $text ); |
| 927 | } |
| 928 | |
| 929 | /** |
| 930 | * Check if the talk page has content above the first heading, in the lede section. |
| 931 | */ |
| 932 | public static function hasLedeContent( ParserOutput $pout ): bool { |
| 933 | return $pout->getExtensionData( 'DiscussionTools-hasLedeContent' ) === true; |
| 934 | } |
| 935 | |
| 936 | /** |
| 937 | * Check if the talk page has comments above the first heading, in the lede section. |
| 938 | */ |
| 939 | public static function hasCommentsInLedeContent( ParserOutput $pout ): bool { |
| 940 | return $pout->getExtensionData( 'DiscussionTools-hasCommentsInLedeContent' ) === true; |
| 941 | } |
| 942 | |
| 943 | /** |
| 944 | * Check if the language requires an icon for the reply button |
| 945 | * |
| 946 | * @param Language $userLang Language |
| 947 | * @return bool |
| 948 | */ |
| 949 | public static function isLanguageRequiringReplyIcon( Language $userLang ): bool { |
| 950 | $services = MediaWikiServices::getInstance(); |
| 951 | |
| 952 | $dtConfig = $services->getConfigFactory()->makeConfig( 'discussiontools' ); |
| 953 | $languages = $dtConfig->get( 'DiscussionTools_visualenhancements_reply_icon_languages' ); |
| 954 | |
| 955 | if ( array_is_list( $languages ) ) { |
| 956 | // Detect legacy list format |
| 957 | throw new ConfigException( |
| 958 | 'DiscussionTools_visualenhancements_reply_icon_languages must be an associative array' |
| 959 | ); |
| 960 | } |
| 961 | |
| 962 | // User language matched exactly and is explicitly set to true or false |
| 963 | if ( isset( $languages[ $userLang->getCode() ] ) ) { |
| 964 | return (bool)$languages[ $userLang->getCode() ]; |
| 965 | } |
| 966 | |
| 967 | // Check fallback languages |
| 968 | $fallbackLanguages = $userLang->getFallbackLanguages(); |
| 969 | foreach ( $fallbackLanguages as $fallbackLanguage ) { |
| 970 | if ( isset( $languages[ $fallbackLanguage ] ) ) { |
| 971 | return (bool)$languages[ $fallbackLanguage ]; |
| 972 | } |
| 973 | } |
| 974 | |
| 975 | // Language not listed, default is to show no icon |
| 976 | return false; |
| 977 | } |
| 978 | |
| 979 | } |