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<?php
use MediaWiki\Widget\TitleInputWidget;
/**
* Implements a text input field for page titles.
* Automatically does validation that the title is valid,
* as well as autocompletion if using the OOUI display format.
*
* Note: Forms using GET requests will need to make sure the title value is not
* an empty string.
*
* Optional parameters:
* 'namespace' - Namespace the page must be in
* 'relative' - If true and 'namespace' given, strip/add the namespace from/to the title as needed
* 'creatable' - Whether to validate the title is creatable (not a special page)
* 'exists' - Whether to validate that the title already exists
*
* @since 1.26
*/
class HTMLTitleTextField extends HTMLTextField {
public function __construct( $params ) {
$params += array(
'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 ) {
$this->mParent->getOutput()->addModules( 'mediawiki.widgets' );
if ( $this->mParams['namespace'] !== false ) {
$params['namespace'] = $this->mParams['namespace'];
}
$params['relative'] = $this->mParams['relative'];
return new TitleInputWidget( $params );
}
}
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