ps_languageselector.php

<?php
/**
 * 2007-2020 PrestaShop SA and Contributors
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Academic Free License 3.0 (AFL-3.0)
 * that is bundled with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * https://opensource.org/licenses/AFL-3.0
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@prestashop.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade PrestaShop to newer
 * versions in the future. If you wish to customize PrestaShop for your
 * needs please refer to https://www.prestashop.com for more information.
 *
 * @author    PrestaShop SA <contact@prestashop.com>
 * @copyright 2007-2020 PrestaShop SA and Contributors
 * @license   https://opensource.org/licenses/AFL-3.0 Academic Free License 3.0 (AFL-3.0)
 * International Registered Trademark & Property of PrestaShop SA
 */
if (!defined('_PS_VERSION_')) {
    exit;
}

use PrestaShop\PrestaShop\Core\Module\WidgetInterface;

class Ps_Languageselector extends Module implements WidgetInterface
{
    /**
     * @var string Name of the module running on PS 1.6.x. Used for data migration.
     */
    const PS_16_EQUIVALENT_MODULE = 'blocklanguages';

    private $templateFile;

    public function __construct()
    {
        $this->name = 'ps_languageselector';
        $this->tab = 'front_office_features';
        $this->author = 'PrestaShop';
        $this->version = '2.1.3';
        $this->need_instance = 0;

        parent::__construct();

        $this->displayName = $this->trans('Language selector block', [], 'Modules.Languageselector.Admin');
        $this->description = $this->trans('Go international and display a language selector in the header of your store so that customers can shop in their own language.', [], 'Modules.Languageselector.Admin');

        $this->ps_versions_compliancy = ['min' => '1.7.1.0', 'max' => _PS_VERSION_];

        $this->templateFile = 'module:ps_languageselector/ps_languageselector.tpl';
    }

    public function install()
    {
        // Migrate data from 1.6 equivalent module (if applicable), then uninstall
        if (Module::isInstalled(self::PS_16_EQUIVALENT_MODULE)) {
            $oldModule = Module::getInstanceByName(self::PS_16_EQUIVALENT_MODULE);
            if ($oldModule) {
                $oldModule->uninstall();
            }
        }

        return parent::install();
    }

    public function renderWidget($hookName = null, array $configuration = [])
    {
        $languages = Language::getLanguages(true, $this->context->shop->id);

        if (1 < count($languages)) {
            $this->smarty->assign($this->getWidgetVariables($hookName, $configuration));

            return $this->fetch($this->templateFile);
        }

        return false;
    }

    public function getWidgetVariables($hookName = null, array $configuration = [])
    {
        $languages = Language::getLanguages(true, $this->context->shop->id);

        foreach ($languages as &$lang) {
            $lang['name_simple'] = $this->getNameSimple($lang['name']);
        }

        return [
            'languages' => $languages,
            'current_language' => [
                'id_lang' => $this->context->language->id,
                'name' => $this->context->language->name,
                'name_simple' => $this->getNameSimple($this->context->language->name),
                'iso_code' => $this->context->language->iso_code,
            ],
        ];
    }

    private function getNameSimple($name)
    {
        return preg_replace('/\s\(.*\)$/', '', $name);
    }
}