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<?php
use MediaWiki\Widget\TitlesMultiselectWidget;
/**
* Implements a tag multiselect input field for titles.
*
* Besides the parameters recognized by HTMLTitleTextField, additional recognized
* parameters are:
* default - (optional) Array of titles to use as preset data
* placeholder - (optional) Custom placeholder message for input
*
* The result is the array of titles
*
* This widget is a duplication of HTMLUsersMultiselectField, except for:
* - The configuration variable changed to 'titles' (from 'users')
* - OOUI modules were adjusted for the TitlesMultiselectWidget
* - The PHP version instantiates a MediaWiki\Widget\TitlesMultiselectWidget
*
* @stable to extend
* @note This widget is not likely to remain functional in non-OOUI forms.
*/
class HTMLTitlesMultiselectField extends HTMLTitleTextField {
/*
* @stable to call
*/
public function __construct( $params ) {
$params += [
// This overrides the default from HTMLTitleTextField
'required' => false,
];
parent::__construct( $params );
}
public function loadDataFromRequest( $request ) {
$value = $request->getText( $this->mName, $this->getDefault() ?? '' );
$titlesArray = explode( "\n", $value );
// Remove empty lines
$titlesArray = array_values( array_filter( $titlesArray, function ( $title ) {
return trim( $title ) !== '';
} ) );
// This function is expected to return a string
return implode( "\n", $titlesArray );
}
public function validate( $value, $alldata ) {
if ( !$this->mParams['exists'] ) {
return true;
}
if ( $value === null ) {
return false;
}
// $value is a string, because HTMLForm fields store their values as strings
$titlesArray = explode( "\n", $value );
if ( isset( $this->mParams['max'] ) && ( count( $titlesArray ) > $this->mParams['max'] ) ) {
return $this->msg( 'htmlform-multiselect-toomany', $this->mParams['max'] );
}
foreach ( $titlesArray as $title ) {
$result = parent::validate( $title, $alldata );
if ( $result !== true ) {
return $result;
}
}
return true;
}
public function getInputHTML( $value ) {
$this->mParent->getOutput()->enableOOUI();
return $this->getInputOOUI( $value );
}
public function getInputOOUI( $value ) {
$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'];
}
if ( isset( $this->mParams['placeholder'] ) ) {
$params['placeholder'] = $this->mParams['placeholder'];
} else {
$params['placeholder'] = $this->msg( 'mw-widgets-titlesmultiselect-placeholder' )->plain();
}
if ( isset( $this->mParams['max'] ) ) {
$params['tagLimit'] = $this->mParams['max'];
}
if ( isset( $this->mParams['showMissing'] ) ) {
$params['showMissing'] = $this->mParams['showMissing'];
}
if ( isset( $this->mParams['excludeDynamicNamespaces'] ) ) {
$params['excludeDynamicNamespaces'] = $this->mParams['excludeDynamicNamespaces'];
}
if ( isset( $this->mParams['input'] ) ) {
$params['input'] = $this->mParams['input'];
}
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-field-autoinfuse' ];
$widget = new TitlesMultiselectWidget( $params );
$widget->setAttributes( [ 'data-mw-modules' => implode( ',', $this->getOOUIModules() ) ] );
return $widget;
}
protected function shouldInfuseOOUI() {
return true;
}
protected function getOOUIModules() {
return [ 'mediawiki.widgets.TitlesMultiselectWidget' ];
}
}
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