@retailmenot/anchor/ts/Collapse/CollapseGroup/CollapseGroup.component.js

A React UI Library by RetailMeNot

var __rest = (this && this.__rest) || function (s, e) {
    var t = {};
    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)
        t[p] = s[p];
    if (s != null && typeof Object.getOwnPropertySymbols === "function")
        for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {
            if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))
                t[p[i]] = s[p[i]];
        }
    return t;
};
// REACT
import * as React from 'react';
// VENDOR
import classNames from 'classnames';
import styled from '@xstyled/styled-components';
// Currently no styles but following the design pattern of anchor components where top-level components
// are styled components.
const StyledCollapseGroup = styled('div') ``;
StyledCollapseGroup.displayName = 'StyledCollapseGroup';
export const CollapseGroup = (_a) => {
    var { accordion = false, openIndex = 0, children, className } = _a, props = __rest(_a, ["accordion", "openIndex", "children", "className"]);
    const [currentOpenIndex, setCurrentOpenIndex] = React.useState(openIndex);
    return (React.createElement(StyledCollapseGroup, Object.assign({ className: classNames('anchor-collapse-group', className) }, props), children &&
        children.map((child, index) => React.cloneElement(child, Object.assign({ 
            // TODO: Even if not explicitly set, this forces all child Collapse components
            // to closed because `undefined` is falsy.  Additionally, this is overwritten
            // if `isOpen` is explicitly set, because `...props` is spread below.
            isOpen: accordion
                ? index === currentOpenIndex
                : undefined, 
            //  If accordion, use setCurrentOpenIndex as the event handler to control
            //  accordion functionality of the Collapse child. If the currentOpenIndex
            //  is the same as the iterator (i) that means the Collapse element is
            //  already open, in which case currentOpenIndex gets set to 1 which ends
            //  up returning false for all checks allowing an opened Collapse element
            //  to be closed.
            onClick: accordion
                ? () => setCurrentOpenIndex(index === currentOpenIndex ? -1 : index)
                : undefined, 
            // No Collapse element should have a bottom border except for the last one.
            hasBottomBorder: index === children.length - 1, key: `collapse-child-${index}` }, props)))));
};
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