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carbon-components

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Carbon Components is a component library for IBM Cloud

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var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }(); function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; } function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } import settings from '../../globals/js/settings'; import mixin from '../../globals/js/misc/mixin'; import createComponent from '../../globals/js/mixins/create-component'; import initComponentBySearch from '../../globals/js/mixins/init-component-by-search'; import handles from '../../globals/js/mixins/handles'; import eventMatches from '../../globals/js/misc/event-matches'; import on from '../../globals/js/misc/on'; var Accordion = function (_mixin) { _inherits(Accordion, _mixin); /** * Accordion. * @extends CreateComponent * @extends InitComponentBySearch * @extends Handles * @param {HTMLElement} element The element working as an accordion. */ function Accordion(element, options) { _classCallCheck(this, Accordion); var _this = _possibleConstructorReturn(this, (Accordion.__proto__ || Object.getPrototypeOf(Accordion)).call(this, element, options)); _this.manage(on(_this.element, 'click', function (event) { var item = eventMatches(event, _this.options.selectorAccordionItem); if (item && !eventMatches(event, _this.options.selectorAccordionContent)) { _this._toggle(item); } })); /** * * DEPRECATE in v8 * * Swapping to a button elemenet instead of a div * automatically maps click events to keypress as well * This event listener now is only added if user is using * the older markup */ if (!_this._checkIfButton()) { _this.manage(on(_this.element, 'keypress', function (event) { var item = eventMatches(event, _this.options.selectorAccordionItem); if (item && !eventMatches(event, _this.options.selectorAccordionContent)) { _this._handleKeypress(event); } })); } return _this; } _createClass(Accordion, [{ key: '_checkIfButton', value: function _checkIfButton() { return this.element.firstElementChild.firstElementChild.nodeName === 'BUTTON'; } /** * Handles toggling of active state of accordion via keyboard * @param {Event} event The event triggering this method. */ }, { key: '_handleKeypress', value: function _handleKeypress(event) { if (event.which === 13 || event.which === 32) { this._toggle(event.target); } } }, { key: '_toggle', value: function _toggle(element) { var heading = element.querySelector(this.options.selectorAccordionItemHeading); var expanded = heading.getAttribute('aria-expanded'); if (expanded !== null) { heading.setAttribute('aria-expanded', expanded === 'true' ? 'false' : 'true'); } element.classList.toggle(this.options.classActive); } /** * The component options. * If `options` is specified in the constructor, * {@linkcode NumberInput.create .create()}, or {@linkcode NumberInput.init .init()}, * properties in this object are overriden for the instance being create and how {@linkcode NumberInput.init .init()} works. * @property {string} selectorInit The CSS selector to find accordion UIs. */ }], [{ key: 'options', get: function get() { var prefix = settings.prefix; return { selectorInit: '[data-accordion]', selectorAccordionItem: '.' + prefix + '--accordion__item', selectorAccordionItemHeading: '.' + prefix + '--accordion__heading', selectorAccordionContent: '.' + prefix + '--accordion__content', classActive: prefix + '--accordion__item--active' }; } /** * The map associating DOM element and accordion UI instance. * @type {WeakMap} */ }]); return Accordion; }(mixin(createComponent, initComponentBySearch, handles)); Accordion.components = new WeakMap(); export default Accordion;