feat: accordion: enable custom summary layout using full width (#799)

* feat: accordion: enable custom summary layout using full width

* chore: accordion: adds ut

src/components/Accordion/Accordion.stories.tsx

@@ -1,9 +1,13 @@
 import React from 'react';
 import { Stories } from '@storybook/addon-docs';
 import { ComponentMeta, ComponentStory } from '@storybook/react';
-import { List } from '../List';
-import { IconName } from '../Icon';
 import { Accordion, AccordionProps, AccordionSize, AccordionShape } from './';
+import { Button, ButtonShape, ButtonVariant } from '../Button';
+import { Badge } from '../Badge';
+import { IconName } from '../Icon';
+import Layout from '../Layout';
+import { List } from '../List';
+import { Stack } from '../Stack';
 
 export default {
   title: 'Accordion',
@@ -85,15 +89,27 @@ const listItems: AccordionProps[] = [
   },
 ];
 
+const buttons = [0, 1].map((i) => ({
+  ariaLabel: `Button ${i}`,
+  disruptive: i === 0 ? false : true,
+  icon: i === 0 ? IconName.mdiCogOutline : IconName.mdiDeleteOutline,
+  variant: i === 0 ? ButtonVariant.Neutral : ButtonVariant.Secondary,
+}));
+
 const Single_Story: ComponentStory<typeof Accordion> = (args) => (
   <Accordion {...args} />
 );
 
 const List_Story: ComponentStory<typeof List> = (args) => <List {...args} />;
 
+const Custom_Story: ComponentStory<typeof Accordion> = (args) => (
+  <Accordion {...args} />
+);
+
 export const Single = Single_Story.bind({});
 export const List_Vertical = List_Story.bind({});
 export const List_Horizontal = List_Story.bind({});
+export const Custom = Custom_Story.bind({});
 
 // Storybook 6.5 using Webpack >= 5.76.0 automatically alphabetizes exports,
 // this line ensures they are exported in the desired order.
@@ -102,6 +118,7 @@ export const __namedExportsOrder = [
   'Single',
   'List_Vertical',
   'List_Horizontal',
+  'Custom',
 ];
 
 Single.args = {
@@ -179,3 +196,92 @@ List_Horizontal.args = {
     padding: '8px',
   },
 };
+
+Custom.args = {
+  children: (
+    <>
+      <div style={{ height: 'auto' }}>
+        Icons are optional for accordions. The body area in the expanded view is
+        like a modal or a slide-in panel. You can put any smaller components
+        inside to build a layout.
+      </div>
+    </>
+  ),
+  id: 'myAccordionId',
+  expandButtonProps: null,
+  expandIconProps: {
+    path: IconName.mdiChevronDown,
+  },
+  configContextProps: {
+    noGradientContext: false,
+    noThemeContext: false,
+  },
+  theme: '',
+  themeContainerId: 'my-accordion-theme-container',
+  gradient: false,
+  headerProps: {
+    fullWidth: true,
+    style: { gap: '8px' },
+  },
+  summary: (
+    <Layout octupleStyles>
+      {' '}
+      {/* octupleStyles enables scoped Octuple BEM. */}
+      <Stack
+        fullWidth
+        direction="horizontal"
+        flexGap="m"
+        justify="space-between"
+        wrap="wrap"
+      >
+        <Stack direction="vertical" flexGap="xxxs">
+          <h4
+            className="octuple-h4"
+            style={{
+              alignSelf: 'center',
+              flexWrap: 'nowrap',
+              margin: 0,
+              whiteSpace: 'nowrap',
+            }}
+          >
+            Accordion Header <Badge style={{ margin: '0 8px' }}>2</Badge>
+          </h4>
+          <div
+            className="octuple-content"
+            style={{ color: 'var(--grey-tertiary-color)', fontWeight: 400 }}
+          >
+            Supporting text
+          </div>
+        </Stack>
+        <Stack
+          align="center"
+          direction="horizontal"
+          flexGap="m"
+          justify="flex-end"
+          style={{ width: 'min-content' }}
+        >
+          <List
+            items={buttons}
+            layout="horizontal"
+            listStyle={{ display: 'flex', gap: '8px' }}
+            renderItem={(item) => (
+              <Button
+                ariaLabel={item.ariaLabel}
+                disruptive={item.disruptive}
+                iconProps={{ path: item.icon }}
+                onClick={(e) => e.preventDefault()} // prevent accordion toggle, then apply your own logic.
+                shape={ButtonShape.Round}
+                variant={item.variant}
+              />
+            )}
+          />
+        </Stack>
+      </Stack>
+    </Layout>
+  ),
+  bordered: true,
+  shape: AccordionShape.Pill,
+  size: AccordionSize.Large,
+  expanded: false,
+  disabled: false,
+};

src/components/Accordion/Accordion.test.tsx

@@ -3,7 +3,12 @@ import Enzyme from 'enzyme';
 import Adapter from '@wojtekmaj/enzyme-adapter-react-17';
 import MatchMediaMock from 'jest-matchmedia-mock';
 import { Accordion, AccordionProps, AccordionShape, AccordionSize } from './';
+import { Button, ButtonShape, ButtonVariant } from '../Button';
+import { Badge } from '../Badge';
 import { IconName } from '../Icon';
+import Layout from '../Layout';
+import { List } from '../List';
+import { Stack } from '../Stack';
 import { fireEvent, render, waitFor } from '@testing-library/react';
 
 Enzyme.configure({ adapter: new Adapter() });
@@ -54,6 +59,13 @@ const accordionProps: AccordionProps = {
   'data-testid': 'test-accordion',
 };
 
+const buttons = [0, 1].map((i) => ({
+  ariaLabel: `Button ${i}`,
+  disruptive: i === 0 ? false : true,
+  icon: i === 0 ? IconName.mdiCogOutline : IconName.mdiDeleteOutline,
+  variant: i === 0 ? ButtonVariant.Neutral : ButtonVariant.Secondary,
+}));
+
 describe('Accordion', () => {
   beforeAll(() => {
     matchMedia = new MatchMediaMock();
@@ -135,4 +147,77 @@ describe('Accordion', () => {
     expect(container.querySelector('.rectangle')).toBeTruthy();
     expect(container).toMatchSnapshot();
   });
+
+  test('Accordion renders custom content', () => {
+    const { container } = render(
+      <Accordion
+        {...accordionProps}
+        expanded={true}
+        headerProps={{
+          fullWidth: true,
+          style: { gap: '8px' },
+        }}
+        size={AccordionSize.Medium}
+        summary={
+          <Layout octupleStyles>
+            <Stack
+              fullWidth
+              direction="horizontal"
+              flexGap="m"
+              justify="space-between"
+              wrap="wrap"
+            >
+              <Stack direction="vertical" flexGap="xxxs">
+                <h4
+                  className="octuple-h4"
+                  style={{
+                    alignSelf: 'center',
+                    flexWrap: 'nowrap',
+                    margin: 0,
+                    whiteSpace: 'nowrap',
+                  }}
+                >
+                  Accordion Header <Badge style={{ margin: '0 8px' }}>2</Badge>
+                </h4>
+                <div
+                  className="octuple-content"
+                  style={{
+                    color: 'var(--grey-tertiary-color)',
+                    fontWeight: 400,
+                  }}
+                >
+                  Supporting text
+                </div>
+              </Stack>
+              <Stack
+                align="center"
+                direction="horizontal"
+                flexGap="m"
+                justify="flex-end"
+                style={{ width: 'min-content' }}
+              >
+                <List
+                  items={buttons}
+                  layout="horizontal"
+                  listStyle={{ display: 'flex', gap: '8px' }}
+                  renderItem={(item) => (
+                    <Button
+                      ariaLabel={item.ariaLabel}
+                      disruptive={item.disruptive}
+                      iconProps={{ path: item.icon }}
+                      onClick={(e) => e.preventDefault()}
+                      shape={ButtonShape.Round}
+                      variant={item.variant}
+                    />
+                  )}
+                />
+              </Stack>
+            </Stack>
+          </Layout>
+        }
+      />
+    );
+    expect(() => container).not.toThrowError();
+    expect(container).toMatchSnapshot();
+  });
 });

src/components/Accordion/Accordion.tsx

@@ -29,41 +29,47 @@ import styles from './accordion.module.scss';
 import themedComponentStyles from './accordion.theme.module.scss';
 
 export const AccordionSummary: FC<AccordionSummaryProps> = ({
+  badgeProps,
   children,
+  classNames,
+  disabled,
   expandButtonProps,
-  expandIconProps,
   expanded,
-  onClick,
-  classNames,
+  expandIconProps,
+  fullWidth = false,
   gradient,
-  id,
   iconProps,
-  badgeProps,
+  id,
+  onIconButtonClick,
+  onClick,
   size,
-  disabled,
   ...rest
 }) => {
   const headerClassnames = mergeClasses([
     styles.accordionSummary,
     classNames,
     {
+      [styles.accordionSummaryFullWidth]: fullWidth,
       [styles.medium]: size === AccordionSize.Medium,
       [styles.large]: size === AccordionSize.Large,
       [styles.accordionSummaryExpanded]: expanded,
       [styles.disabled]: disabled,
     },
   ]);
 
-  const iconStyles: string = mergeClasses([
-    styles.accordionIcon,
+  const iconButtonClassNames: string = mergeClasses([
+    styles.accordionIconButton,
     // Conditional classes can also be handled as follows
-    { [styles.expandedIcon]: expanded },
+    { [styles.expandedIconButton]: expanded },
   ]);
 
   // to handle enter press on accordion header
   const handleKeyDown = useCallback(
     (event) => {
-      event.key === eventKeys.ENTER && onClick?.(event);
+      if (event.key === eventKeys.ENTER || event.key === eventKeys.SPACE) {
+        event.preventDefault();
+        onClick?.(event);
+      }
     },
     [onClick]
   );
@@ -89,9 +95,12 @@ export const AccordionSummary: FC<AccordionSummaryProps> = ({
         {...expandButtonProps}
         disabled={disabled}
         gradient={gradient}
-        iconProps={{ classNames: iconStyles, ...expandIconProps }}
+        iconProps={{ classNames: iconButtonClassNames, ...expandIconProps }}
+        onClick={onIconButtonClick}
+        onKeyDown={handleKeyDown}
         shape={ButtonShape.Round}
         variant={gradient ? ButtonVariant.Secondary : ButtonVariant.Neutral}
+        {...expandButtonProps}
       />
     </div>
   );
@@ -215,6 +224,7 @@ export const Accordion: FC<AccordionProps> = React.forwardRef(
             gradient={gradient}
             iconProps={iconProps}
             id={id}
+            onIconButtonClick={() => toggleAccordion(!isExpanded)}
             onClick={() => toggleAccordion(!isExpanded)}
             size={size}
             {...headerProps}

src/components/Accordion/Accordion.types.ts

@@ -16,6 +16,11 @@ export enum AccordionSize {
 }
 
 interface AccordionBaseProps extends OcBaseProps<HTMLDivElement> {
+  /**
+   * If the accordion is bordered or not
+   * @default true
+   */
+  bordered?: boolean;
   /**
    * Configure how contextual props are consumed
    */
@@ -43,16 +48,17 @@ interface AccordionBaseProps extends OcBaseProps<HTMLDivElement> {
    * @default false
    */
   gradient?: boolean;
+  /**
+   * The onClick callback for the accordion.
+   * @param event
+   * @returns
+   */
+  onIconButtonClick?: React.MouseEventHandler<HTMLButtonElement>;
   /**
    * Shape of the accordion
    * @default AccordionShape.Pill
    */
   shape?: AccordionShape;
-  /**
-   * If the accordion is bordered or not
-   * @default true
-   */
-  bordered?: boolean;
   /**
    * Size of the accordion
    * @default AccordionSize.Large
@@ -108,6 +114,10 @@ export interface AccordionSummaryProps
    * Badge props for the header badge
    */
   badgeProps?: BadgeProps;
+  /**
+   * Whether the accordion summary is full width or not.
+   */
+  fullWidth?: boolean;
 }
 
 export interface AccordionBodyProps