60 lines
2.2 KiB
JavaScript
60 lines
2.2 KiB
JavaScript
/**
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* Copyright since 2007 PrestaShop SA and Contributors
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* PrestaShop is an International Registered Trademark & Property of PrestaShop SA
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*
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* NOTICE OF LICENSE
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*
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* This source file is subject to the Open Software License (OSL 3.0)
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* that is bundled with this package in the file LICENSE.md.
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* It is also available through the world-wide-web at this URL:
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* https://opensource.org/licenses/OSL-3.0
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@prestashop.com so we can send you a copy immediately.
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*
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* DISCLAIMER
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*
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* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
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* versions in the future. If you wish to customize PrestaShop for your
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* needs please refer to https://devdocs.prestashop.com/ for more information.
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*
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* @author PrestaShop SA and Contributors <contact@prestashop.com>
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* @copyright Since 2007 PrestaShop SA and Contributors
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* @license https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
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*/
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const {$} = window;
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/**
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* TextWithLengthCounter handles input with length counter UI.
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*
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* Usage:
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*
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* There must be an element that wraps both input & counter display with ".js-text-with-length-counter" class.
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* Counter display must have ".js-countable-text-display" class and input must have ".js-countable-text-input" class.
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* Text input must have "data-max-length" attribute.
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*
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* <div class="js-text-with-length-counter">
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* <span class="js-countable-text"></span>
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* <input class="js-countable-input" data-max-length="255">
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* </div>
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*
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* In Javascript you must enable this component:
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*
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* new TextWithLengthCounter();
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*/
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export default class TextWithLengthCounter {
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constructor() {
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this.wrapperSelector = '.js-text-with-length-counter';
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this.textSelector = '.js-countable-text';
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this.inputSelector = '.js-countable-input';
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$(document).on('input', `${this.wrapperSelector} ${this.inputSelector}`, (e) => {
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const $input = $(e.currentTarget);
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const remainingLength = $input.data('max-length') - $input.val().length;
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$input.closest(this.wrapperSelector).find(this.textSelector).text(remainingLength);
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});
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}
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}
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