feat(react): accordion component

packages/core/src/components/accordion/accordion.scss

@@ -0,0 +1,106 @@
+@use '../../helpers';
+@use '../../mixins';
+
+@mixin Accordion() {
+  @if not mixins.includes('Accordion') {
+    @include _Accordion();
+  }
+}
+
+@mixin _Accordion() {
+  .ods-accordion-wrapper:not(.separated) {
+    background-color: helpers.color('background-surface');
+    border: 1px solid helpers.color('border-separator');
+    border-radius: helpers.border-radius('large');
+    overflow: hidden;
+  }
+
+  .ods-accordion {
+    overflow: hidden;
+
+    &:not(:last-child) {
+      border-bottom: 1px solid helpers.color('border-separator');
+    }
+  }
+
+  .separated .ods-accordion {
+    background-color: helpers.color('background-surface');
+    border: 1px solid helpers.color('border-separator');
+    border-radius: helpers.border-radius('large');
+
+    &:not(:last-child) {
+      margin-bottom: helpers.space(2);
+    }
+  }
+
+  .ods-accordion-toggler {
+    @include helpers.font('400-regular');
+    align-items: center;
+    background-color: transparent;
+    border: 0;
+    cursor: pointer;
+    display: flex;
+    gap: helpers.space(1);
+    justify-content: flex-start;
+    padding: var(--padding);
+    transition: background-color linear 0.2s;
+    width: 100%;
+
+    &:hover {
+      background-color: helpers.color('background-action-subtle');
+    }
+  }
+
+  .ods-accordion-secondary-content > * {
+    margin: 0;
+  }
+
+  .ods-accordion-chevron {
+    transition: transform linear 0.2s;
+  }
+
+  .ods-accordion-title {
+    margin-right: auto;
+  }
+
+  .ods-accordion-content-wrapper {
+    max-height: 0;
+    overflow: hidden;
+    padding: 0 var(--padding);
+    transition: padding ease-in-out 0.3s, max-height ease-in-out 0.3s;
+  }
+
+  .separator {
+    position: relative;
+
+    &::before {
+      border-bottom: 1px solid helpers.color('border-separator');
+      content: '';
+      left: var(--padding);
+      position: absolute;
+      right: var(--padding);
+      top: 0;
+    }
+  }
+
+  .open {
+    .ods-accordion-content-wrapper {
+      max-height: 100vh;
+      padding-bottom: var(--padding);
+      padding-top: var(--padding);
+    }
+
+    .ods-accordion-content {
+      opacity: 1;
+    }
+
+    .ods-accordion-chevron {
+      transform: rotateZ(180deg);
+    }
+  }
+
+  .ods-accordion-content {
+    opacity: 0;
+    transition: opacity linear 0.4s;
+  }
+}

packages/core/src/components/index.scss

@@ -42,6 +42,8 @@
 @forward './tooltip/tooltip';
 @use './validation/validation';
 @forward './validation/validation';
+@use './accordion/accordion.scss';
+@forward './accordion/accordion.scss';
 
 @mixin components() {
   @include asterisk.Asterisk();
@@ -66,4 +68,5 @@
   @include textarea.Textarea();
   @include tooltip.Tooltip();
   @include validation.Validation();
+  @include accordion.Accordion();
 }

packages/react/src/components/accordion/accordion.stories.tsx

@@ -0,0 +1,24 @@
+import { Accordion, type AccordionProps } from '@onfido/castor-react';
+import React from 'react';
+import { Meta, Story } from '../../../../../docs';
+
+export default {
+  title: 'React/Accordion',
+  component: Accordion,
+  args: {
+    list: [
+      {
+        title: 'A title with an icon',
+        iconName: 'bolt',
+        content: <div>Content example.</div>,
+      },
+      {
+        title: 'Another title without icon',
+        content: <div>Another content example.</div>,
+      },
+    ],
+  },
+  parameters: {},
+} as Meta<AccordionProps>;
+
+export const Playground: Story<AccordionProps> = {};

packages/react/src/components/accordion/accordion.tsx

@@ -0,0 +1,112 @@
+import { c, classy, cssVars, space } from '@onfido/castor';
+import type { IconName } from '@onfido/castor-icons';
+import { Icon } from '@onfido/castor-react';
+import React, { useEffect, useState, type FC } from 'react';
+
+export type AccordionItem = {
+  isOpen?: boolean;
+  title: string;
+  iconName?: IconName;
+  content: React.ReactElement;
+  secondaryContent?: React.ReactElement;
+};
+
+export type AccordionStyles = {
+  padding?: number;
+};
+
+export interface AccordionProps {
+  list: AccordionItem[];
+  onChange?: (newList: AccordionItem[]) => void;
+  onlyOneOpen: boolean;
+  separated: boolean;
+  withSeparator: boolean;
+  styles?: AccordionStyles;
+}
+
+const defaultStyles = {
+  padding: 3,
+};
+
+export const Accordion: FC<AccordionProps> = ({
+  list: listProps,
+  onChange,
+  onlyOneOpen = false,
+  separated = false,
+  withSeparator = false,
+  styles: stylesProps = defaultStyles,
+}) => {
+  const [list, setList] = useState<AccordionItem[]>(listProps);
+
+  const _styles = {
+    ...defaultStyles,
+    ...stylesProps,
+  };
+
+  useEffect(() => {
+    let newList = [...list];
+
+    newList = newList.map((item) => ({
+      ...item,
+      isOpen: false,
+    }));
+
+    if (onChange) onChange(newList);
+  }, [onlyOneOpen]);
+
+  const handleClick = (index: number) => () => {
+    let newList = [...list];
+
+    if (onlyOneOpen) {
+      newList = newList.map((item, newIndex) => ({
+        ...item,
+        isOpen: newIndex !== index ? false : !item.isOpen,
+      }));
+    } else {
+      newList[index].isOpen = !list[index].isOpen;
+    }
+    setList(newList);
+    if (onChange) onChange(newList);
+  };
+
+  const style = cssVars({ padding: space(_styles.padding) });
+
+  return (
+    <div
+      style={style}
+      className={classy(c('accordion-wrapper'), { separated })}
+    >
+      {list.map((item, index) => (
+        <div
+          key={index}
+          className={classy(c('accordion'), { open: item.isOpen })}
+        >
+          <button
+            className={classy(c('accordion-toggler'))}
+            onClick={handleClick(index)}
+          >
+            {item.iconName && <Icon name={item.iconName} aria-hidden="true" />}
+            <span className={classy(c('accordion-title'))}>{item.title}</span>
+            {item.secondaryContent && (
+              <span className={classy(c('accordion-secondary-content'))}>
+                {item.secondaryContent}
+              </span>
+            )}
+            <Icon
+              className={classy(c('accordion-chevron'))}
+              name="chevron-down"
+              aria-hidden="true"
+            />
+          </button>
+          <div
+            className={classy(c('accordion-content-wrapper'), {
+              separator: withSeparator,
+            })}
+          >
+            <div className={classy(c('accordion-content'))}>{item.content}</div>
+          </div>
+        </div>
+      ))}
+    </div>
+  );
+};

packages/react/src/components/index.ts

@@ -1,3 +1,4 @@
+export * from './accordion/accordion';
 export * from './asterisk/asterisk';
 export * from './button/button';
 export * from './checkbox/checkbox';

yarn.lock

@@ -12735,6 +12735,14 @@ react-dom@^17.0.2:
     object-assign "^4.1.1"
     scheduler "^0.20.2"
 
+react-dom@^18.2.0:
+  version "18.2.0"
+  resolved "https://registry.yarnpkg.com/react-dom/-/react-dom-18.2.0.tgz#22aaf38708db2674ed9ada224ca4aa708d821e3d"
+  integrity sha512-6IMTriUmvsjHUjNtEDudZfuDQUoWXVxKHhlEGSk81n4YFS+r/Kl99wXiwlVXtPBtJenozv2P+hxDsw9eA7Xo6g==
+  dependencies:
+    loose-envify "^1.1.0"
+    scheduler "^0.23.0"
+
 react-element-to-jsx-string@^14.3.4:
   version "14.3.4"
   resolved "https://registry.yarnpkg.com/react-element-to-jsx-string/-/react-element-to-jsx-string-14.3.4.tgz#709125bc72f06800b68f9f4db485f2c7d31218a8"
@@ -13393,6 +13401,13 @@ scheduler@^0.20.2:
     loose-envify "^1.1.0"
     object-assign "^4.1.1"
 
+scheduler@^0.23.0:
+  version "0.23.0"
+  resolved "https://registry.yarnpkg.com/scheduler/-/scheduler-0.23.0.tgz#ba8041afc3d30eb206a487b6b384002e4e61fdfe"
+  integrity sha512-CtuThmgHNg7zIZWAXi3AsyIzA3n4xx7aNyjwC2VJldO2LMVDhFK+63xGqq6CsJH4rTAt6/M+N4GhZiDYPx9eUw==
+  dependencies:
+    loose-envify "^1.1.0"
+
 schema-utils@2.7.0:
   version "2.7.0"
   resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-2.7.0.tgz#17151f76d8eae67fbbf77960c33c676ad9f4efc7"