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iadmin/themes/new-theme/js/components/form/text-with-recommended-length-counter.js

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+/**
+ * Copyright since 2007 PrestaShop SA and Contributors
+ * PrestaShop is an International Registered Trademark & Property of PrestaShop SA
+ *
+ * NOTICE OF LICENSE
+ *
+ * This source file is subject to the Open Software License (OSL 3.0)
+ * that is bundled with this package in the file LICENSE.md.
+ * It is also available through the world-wide-web at this URL:
+ * https://opensource.org/licenses/OSL-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://devdocs.prestashop.com/ for more information.
+ *
+ * @author    PrestaShop SA and Contributors <contact@prestashop.com>
+ * @copyright Since 2007 PrestaShop SA and Contributors
+ * @license   https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ */
+
+const {$} = window;
+
+/**
+ * This component is implemented to work with TextWithRecommendedLengthType,
+ * but can be used as standalone component as well.
+ *
+ * Usage:
+ *
+ * Define your HTML with input and counter. Example:
+ *
+ * <input id="myInput"
+ *        class="js-recommended-length-input"
+ *        data-recommended-length-counter="#myInput_recommended_length_counter"
+ * >
+ *
+ * <div id"myInput_recommended_length_counter">
+ *  <span class="js-current-length">0</span> of 70 characters used (recommended)
+ * </div>
+ *
+ * NOTE: You must use exactly the same Classes, but IDs can be different!
+ *
+ * Then enable component in JavaScript:
+ *
+ * new TextWithRecommendedLengthCounter();
+ */
+export default class TextWithRecommendedLengthCounter {
+  constructor() {
+    $(document).on('input', '.js-recommended-length-input', (event) => {
+      const $input = $(event.currentTarget);
+
+      $($input.data('recommended-length-counter')).find('.js-current-length').text($input.val().length);
+    });
+  }
+}