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HTMLNamespacesMultiselectField.php
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HTMLNamespacesMultiselectField.php
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<?php
namespace MediaWiki\HTMLForm\Field;
use MediaWiki\MediaWikiServices;
use MediaWiki\Widget\NamespacesMultiselectWidget;
/**
* Implements a tag multiselect input field for namespaces.
*
* The result is the array of namespaces
*
* TODO: This widget duplicates a lot from HTMLTitlesMultiselectField,
* which itself duplicates HTMLUsersMultiselectField. These classes
* should be refactored.
*
* @stable to extend
* @note This widget is not likely to remain functional in non-OOUI forms.
*/
class HTMLNamespacesMultiselectField extends HTMLSelectNamespace {
/** @inheritDoc */
public function loadDataFromRequest( $request ) {
$value = $request->getText( $this->mName, $this->getDefault() ?? '' );
$namespaces = explode( "\n", $value );
// Remove empty lines
$namespaces = array_values( array_filter( $namespaces, static function ( $namespace ) {
return trim( $namespace ) !== '';
} ) );
// This function is expected to return a string
return implode( "\n", $namespaces );
}
/** @inheritDoc */
public function validate( $value, $alldata ) {
if ( !$this->mParams['exists'] || $value === '' ) {
return true;
}
if ( $value === null ) {
return false;
}
// $value is a string, because HTMLForm fields store their values as strings
$namespaces = explode( "\n", $value );
if ( isset( $this->mParams['max'] ) && ( count( $namespaces ) > $this->mParams['max'] ) ) {
return $this->msg( 'htmlform-multiselect-toomany', $this->mParams['max'] );
}
foreach ( $namespaces as $namespace ) {
if (
$namespace < 0 ||
!MediaWikiServices::getInstance()->getNamespaceInfo()->exists( (int)$namespace )
) {
return $this->msg( 'htmlform-select-badoption' );
}
$result = parent::validate( $namespace, $alldata );
if ( $result !== true ) {
return $result;
}
}
return true;
}
/** @inheritDoc */
public function getInputHTML( $value ) {
$this->mParent->getOutput()->enableOOUI();
return $this->getInputOOUI( $value );
}
/** @inheritDoc */
public function getInputOOUI( $value ) {
$this->mParent->getOutput()->addModuleStyles( 'mediawiki.widgets.TagMultiselectWidget.styles' );
$params = [
'id' => $this->mID,
'name' => $this->mName,
'dir' => $this->mDir,
];
if ( isset( $this->mParams['disabled'] ) ) {
$params['disabled'] = $this->mParams['disabled'];
}
if ( isset( $this->mParams['default'] ) ) {
$params['default'] = $this->mParams['default'];
}
$params['placeholder'] = $this->mParams['placeholder'] ??
$this->msg( 'mw-widgets-titlesmultiselect-placeholder' )->plain();
if ( isset( $this->mParams['max'] ) ) {
$params['tagLimit'] = $this->mParams['max'];
}
if ( isset( $this->mParams['input'] ) ) {
$params['input'] = $this->mParams['input'];
}
if ( isset( $this->mParams['allowEditTags'] ) ) {
$params['allowEditTags'] = $this->mParams['allowEditTags'];
}
if ( $value !== null ) {
// $value is a string, but the widget expects an array
$params['default'] = $value === '' ? [] : explode( "\n", $value );
}
// Make the field auto-infusable when it's used inside a legacy HTMLForm rather than OOUIHTMLForm
$params['infusable'] = true;
$params['classes'] = [ 'mw-htmlform-autoinfuse' ];
$widget = new NamespacesMultiselectWidget( $params );
$widget->setAttributes( [ 'data-mw-modules' => implode( ',', $this->getOOUIModules() ) ] );
return $widget;
}
/** @inheritDoc */
protected function shouldInfuseOOUI() {
return true;
}
/** @inheritDoc */
protected function getOOUIModules() {
return [ 'mediawiki.widgets.NamespacesMultiselectWidget' ];
}
/** @inheritDoc */
public function getInputCodex( $value, $hasErrors ) {
// HTMLTextAreaField defaults to 'rows' => 25, which is too big for this field
// Use 10 instead (but allow $this->mParams to override that value)
$textAreaField = new HTMLTextAreaField( $this->mParams + [ 'rows' => 10 ] );
return $textAreaField->getInputCodex( $value, $hasErrors );
}
}
/** @deprecated class alias since 1.42 */
class_alias( HTMLNamespacesMultiselectField::class, 'HTMLNamespacesMultiselectField' );

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Aug 14 2026, 22:58 (12 w, 6 d ago)
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