LanguageEventIngress.php

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<?php
 
namespace MediaWiki\Languages;
 
use MediaWiki\DomainEvent\DomainEventIngress;
use MediaWiki\Page\Event\PageDeletedEvent;
use MediaWiki\Page\Event\PageDeletedListener;
use MediaWiki\Page\Event\PageRevisionUpdatedEvent;
use MediaWiki\Page\Event\PageRevisionUpdatedListener;
use MediaWiki\Revision\SlotRecord;
use MessageCache;
 
class LanguageEventIngress
    extends DomainEventIngress
    implements PageDeletedListener, PageRevisionUpdatedListener
{
 
    private MessageCache $messageCache;
 
    public const OBJECT_SPEC = [
        'class' => self::class,
        'services' => [
            'MessageCache'
        ],
        'events' => [
            PageRevisionUpdatedEvent::TYPE,
            PageDeletedEvent::TYPE
        ],
    ];
 
    public function __construct( MessageCache $messageCache ) {
        $this->messageCache = $messageCache;
    }
 
    public function handlePageRevisionUpdatedEvent( PageRevisionUpdatedEvent $event ) {
        if ( $event->getPage()->getNamespace() === NS_MEDIAWIKI &&
            ( $event->isModifiedSlot( SlotRecord::MAIN )
                || $event->hasCause( PageRevisionUpdatedEvent::CAUSE_MOVE )
                || $event->isReconciliationRequest()
            )
        ) {
            $content = $event->getLatestRevisionAfter()->getMainContentRaw();
            $this->messageCache->updateMessageOverride( $event->getPage(), $content );
        }
    }
 
    public function handlePageDeletedEvent( PageDeletedEvent $event ) {
        if ( $event->getDeletedPage()->getNamespace() === NS_MEDIAWIKI ) {
            $this->messageCache->updateMessageOverride( $event->getDeletedPage(), null );
        }
    }
 
}