HTMLTitleTextField.php

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<?php
 
use MediaWiki\Widget\TitleInputWidget;
 
class HTMLTitleTextField extends HTMLTextField {
    public function __construct( $params ) {
        $params += [
            'namespace' => false,
            'relative' => false,
            'creatable' => false,
            'exists' => false,
        ];
 
        parent::__construct( $params );
    }
 
    public function validate( $value, $alldata ) {
        if ( $this->mParent->getMethod() === 'get' && $value === '' ) {
            // If the form is a GET form and has no value, assume it hasn't been
            // submitted yet, and skip validation
            return parent::validate( $value, $alldata );
        }
        try {
            if ( !$this->mParams['relative'] ) {
                $title = Title::newFromTextThrow( $value );
            } else {
                // Can't use Title::makeTitleSafe(), because it doesn't throw useful exceptions
                global $wgContLang;
                $namespaceName = $wgContLang->getNsText( $this->mParams['namespace'] );
                $title = Title::newFromTextThrow( $namespaceName . ':' . $value );
            }
        } catch ( MalformedTitleException $e ) {
            $msg = $this->msg( $e->getErrorMessage() );
            $params = $e->getErrorMessageParameters();
            if ( $params ) {
                $msg->params( $params );
            }
            return $msg->parse();
        }
 
        $text = $title->getPrefixedText();
        if ( $this->mParams['namespace'] !== false &&
            !$title->inNamespace( $this->mParams['namespace'] )
        ) {
            return $this->msg( 'htmlform-title-badnamespace', $this->mParams['namespace'], $text )->parse();
        }
 
        if ( $this->mParams['creatable'] && !$title->canExist() ) {
            return $this->msg( 'htmlform-title-not-creatable', $text )->escaped();
        }
 
        if ( $this->mParams['exists'] && !$title->exists() ) {
            return $this->msg( 'htmlform-title-not-exists', $text )->parse();
        }
 
        return parent::validate( $value, $alldata );
    }
 
    protected function getInputWidget( $params ) {
        if ( $this->mParams['namespace'] !== false ) {
            $params['namespace'] = $this->mParams['namespace'];
        }
        $params['relative'] = $this->mParams['relative'];
        return new TitleInputWidget( $params );
    }
 
    protected function shouldInfuseOOUI() {
        return true;
    }
 
    protected function getOOUIModules() {
        // FIXME: TitleInputWidget should be in its own module
        return [ 'mediawiki.widgets' ];
    }
 
    public function getInputHtml( $value ) {
        // add mw-searchInput class to enable search suggestions for non-OOUI, too
        $this->mClass .= 'mw-searchInput';
 
        // return the HTMLTextField html
        return parent::getInputHTML( $value );
    }
 
    protected function getDataAttribs() {
        return [
            'data-mw-searchsuggest' => FormatJson::encode( [
                'wrapAsLink' => false,
            ] ),
        ];
    }
}