NewSectionMissingSubjectConstraint.php

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<?php
namespace MediaWiki\EditPage\Constraint;
 
use MediaWiki\PageEdit\PageEditStatus;
use Wikimedia\Message\MessageSpecifier;
 
class NewSectionMissingSubjectConstraint extends EditConstraint {
 
    public function __construct(
        private readonly string $section,
        private readonly string $subject,
        private readonly bool $allowBlankSubject,
        private readonly MessageSpecifier $submitButtonLabel,
    ) {
    }
 
    public function checkConstraint(): PageEditStatus {
        if ( $this->section === 'new' &&
            !$this->allowBlankSubject &&
            trim( $this->subject ) === ''
        ) {
            return PageEditStatus::newGood( self::AS_SUMMARY_NEEDED )
                ->setOK( false )
                ->warning(
                    'missingcommentheader',
                    $this->submitButtonLabel,
                );
        }
 
        return PageEditStatus::newGood();
    }
 
}