+<?php
+
+namespace MediaWiki\Widget;
+
+use OOUI\MultilineTextInputWidget;
+
+/**
+ * Abstract base class for widgets to select multiple users, titles,
+ * namespaces, etc.
+ *
+ * @copyright 2017 MediaWiki Widgets Team and others; see AUTHORS.txt
+ * @license MIT
+ */
+abstract class TagMultiselectWidget extends \OOUI\Widget {
+
+ protected $selectedArray = [];
+ protected $inputName = null;
+ protected $inputPlaceholder = null;
+ protected $tagLimit = null;
+
+ /**
+ * @param array $config Configuration options
+ * - array $config['default'] Array of items to use as preset data
+ * - array $config['name'] Name attribute (used in forms)
+ * - array $config['placeholder'] Placeholder message for input
+ * - array $config['input'] Config options for the input widget
+ * - number $config['tagLimit'] Maximum number of selected items
+ */
+ public function __construct( array $config = [] ) {
+ parent::__construct( $config );
+
+ // Properties
+ if ( isset( $config['default'] ) ) {
+ $this->selectedArray = $config['default'];
+ }
+ if ( isset( $config['name'] ) ) {
+ $this->inputName = $config['name'];
+ }
+ if ( isset( $config['placeholder'] ) ) {
+ $this->inputPlaceholder = $config['placeholder'];
+ }
+ if ( isset( $config['input'] ) ) {
+ $this->input = $config['input'];
+ } else {
+ $this->input = [];
+ }
+ if ( isset( $config['tagLimit'] ) ) {
+ $this->tagLimit = $config['tagLimit'];
+ }
+
+ $textarea = new MultilineTextInputWidget( array_merge( [
+ 'name' => $this->inputName,
+ 'value' => implode( "\n", $this->selectedArray ),
+ 'rows' => 10,
+ 'classes' => [
+ 'mw-widgets-tagMultiselectWidget-multilineTextInputWidget'
+ ],
+ ], $this->input ) );
+
+ $pending = new PendingTextInputWidget();
+
+ $this->appendContent( $textarea, $pending );
+ $this->addClasses( [ 'mw-widgets-tagMultiselectWidget' ] );
+ }
+
+ public function getConfig( &$config ) {
+ if ( $this->selectedArray !== null ) {
+ $config['selected'] = $this->selectedArray;
+ }
+ if ( $this->inputName !== null ) {
+ $config['name'] = $this->inputName;
+ }
+ if ( $this->inputPlaceholder !== null ) {
+ $config['placeholder'] = $this->inputPlaceholder;
+ }
+ if ( $this->input !== null ) {
+ $config['input'] = $this->input;
+ }
+ if ( $this->tagLimit !== null ) {
+ $config['tagLimit'] = $this->tagLimit;
+ }
+
+ $config['$overlay'] = true;
+ return parent::getConfig( $config );
+ }
+
+}