main

<?php

​

use \WPML\FP\Obj;

​

/**

 * This code is inspired by WPML Widgets (https://wordpress.org/plugins/wpml-widgets/),

 * created by Jeroen Sormani

 *

 * @author OnTheGo Systems

 */

class WPML_Widgets_Support_Backend implements IWPML_Action {

    const NONCE = 'wpml-language-nonce';

​

    private $active_languages;

    private $template_service;

​

    /**

     * WPML_Widgets constructor.

     *

     * @param array                  $active_languages

     * @param IWPML_Template_Service $template_service

     */

    public function __construct( array $active_languages, IWPML_Template_Service $template_service ) {

        $this->active_languages = $active_languages;

        $this->template_service = $template_service;

    }

​

    public function add_hooks() {

        add_action( 'in_widget_form', array( $this, 'language_selector' ), 10, 3 );

        add_filter( 'widget_update_callback', array( $this, 'update' ), 10, 4 );

    }

​

    /**

     * @param WP_Widget|null $widget

     * @param string|null    $form

     * @param array          $instance

     */

    public function language_selector( $widget, $form, $instance ) {

​

        $languages        = $this->active_languages;

        $languages['all'] = array(

            'code'        => 'all',

            'native_name' => __( 'All Languages', 'sitepress' ),

        );

​

        $model = array(

            'strings'           => array(

                'label' => __( 'Display on language:', 'sitepress' ),

            ),

            'languages'         => $languages,

            'selected_language' => Obj::propOr( 'all', 'wpml_language', is_array( $instance ) ? $instance : [] ),

            'nonce'             => wp_create_nonce( self::NONCE ),

        );

​

        echo $this->template_service->show( $model, 'language-selector.twig' );

    }

​

    /**

     * @param array     $instance

     * @param array     $new_instance

     * @param array     $old_instance

     * @param WP_Widget $widget_instance

     *