feat(AppNotification)!: introduce 2.0 component

- add component with specified design and code API
- add in tests and stories
- support button alignment in ButtonGroup via new internal value

.storybook/preview.tsx

@@ -79,6 +79,7 @@ export const parameters = {
     ],
   },
   badgesConfig: {
+    ...createInitialReleaseConfig('2.0'),
     ...createInitialReleaseConfig('1.3'),
     ...createInitialReleaseConfig('1.2'),
     ...createInitialReleaseConfig('1.1'),

src/components/AppNotification/AppNotification.module.css

@@ -0,0 +1,55 @@
+/*------------------------------------*\
+    # APP NOTIFICATION
+\*------------------------------------*/
+
+/**
+ * AppNotification
+ */
+.app-notification {
+    padding: 1.5rem;
+
+    &.app-notification--color-dark {
+        color: var(--eds-theme-color-text-utility-inverse);
+        background-color: var(--eds-theme-color-background-utility-default-high-emphasis);    
+    }
+
+    &.app-notification--color-light {
+        color: var(--eds-theme-color-text-utility-default-primary-active);
+        background-color: var(--eds-theme-color-background-utility-container);
+    }
+
+    @media (min-width: $eds-bp-sm) {
+        padding-left: calc(var(--eds-size-6) * 1px);
+        padding-right: calc(var(--eds-size-6) * 1px);
+    }
+
+    @media (min-width: $eds-bp-xl) {
+        .app-notification__content {
+            margin: 0 auto;
+        }
+    }
+}
+
+.app-notification__title {
+    margin-bottom: 0.5rem;
+}
+
+/* .app-notification__sub-title {
+} */
+
+.app-notification__actions {
+    margin-top: 1.5rem;
+}
+
+.app-notification__content {
+    /* TODO-AH: how to define this magic number */
+    max-width: 1320px;
+    display: flex;
+    gap: 0.5rem;
+}
+
+.app-notification__close-btn {
+    flex-shrink: 0;
+    margin-top: -0.5rem;
+    margin-right: -0.5rem;
+}

src/components/AppNotification/AppNotification.stories.tsx

@@ -0,0 +1,81 @@
+import { BADGE } from '@geometricpanda/storybook-addon-badges';
+import type { StoryObj, Meta } from '@storybook/react';
+
+import React from 'react';
+
+import { AppNotification } from './AppNotification';
+import { ButtonV2 as Button } from '../Button';
+import { ButtonGroupV2 as ButtonGroup } from '../ButtonGroup';
+
+export default {
+  title: 'Components/V2/AppNotification',
+  component: AppNotification,
+  parameters: {
+    badges: [BADGE.BETA, 'intro-2.0', 'current-2.0'],
+  },
+  args: {
+    title: 'This is an AppNotification title',
+    subTitle:
+      'Lorem ipsum dolor sit amet consectetur. At et vitae quis amet felis mollis in vitae. Eget in neque et molestie. Luctus sed id commodo volutpat. In a eu in id molestie consectetur pellentesque.',
+  },
+  argTypes: {
+    children: {
+      control: {
+        type: null,
+      },
+    },
+  },
+} as Meta<Args>;
+
+type Args = React.ComponentProps<typeof AppNotification>;
+
+export const Default: StoryObj<Args> = {
+  args: {},
+};
+
+export const WithControls: StoryObj<Args> = {
+  args: {
+    children: (
+      <ButtonGroup buttonLayout="horizontal" className="!flex-row">
+        <Button rank="secondary" variant="inverse">
+          Call To Action
+        </Button>
+        <Button rank="tertiary" variant="inverse">
+          Other action
+        </Button>
+      </ButtonGroup>
+    ),
+  },
+};
+
+export const LightColor: StoryObj<Args> = {
+  args: {
+    color: 'light',
+    children: (
+      <ButtonGroup buttonLayout="horizontal-align-left">
+        <Button rank="secondary">Call To Action</Button>
+        <Button rank="tertiary">Other action</Button>
+      </ButtonGroup>
+    ),
+  },
+};
+
+export const WithDismissAndControls: StoryObj<Args> = {
+  args: {
+    ...WithControls.args,
+    onDismiss: () => {
+      console.log('dismissing!');
+    },
+  },
+};
+
+export const LightWithDismissAndControls: StoryObj<Args> = {
+  args: {
+    ...LightColor.args,
+    onDismiss: () => {
+      console.log('dismissing!');
+    },
+  },
+};
+
+// TODO-AH: add in responsive tests for each breakpoint to cover layout and spacing

src/components/AppNotification/AppNotification.test.ts

@@ -0,0 +1,8 @@
+import { generateSnapshots } from '@chanzuckerberg/story-utils';
+import type { StoryFile } from '@storybook/testing-react';
+
+import * as stories from './AppNotification.stories';
+
+describe('<AppNotification />', () => {
+  generateSnapshots(stories as StoryFile);
+});

src/components/AppNotification/AppNotification.tsx

@@ -0,0 +1,94 @@
+import clsx from 'clsx';
+import React from 'react';
+import { ButtonV2 as Button } from '../Button';
+import Text from '../Text';
+import styles from './AppNotification.module.css';
+
+export interface Props {
+  // Design API
+  /**
+   * The title/heading of the notification
+   */
+  title: string;
+  /**
+   * Secondary text used to describe the notification in more detail
+   */
+  subTitle: React.ReactNode;
+  /**
+   * Treatment for component (whether it is dark on light text, or light on dark text)
+   */
+  color: 'dark' | 'light';
+
+  // Component API
+  /**
+   * Contents of the component below the title and sub-title (used mainly for `ButtonGroup`)
+   */
+  children?: React.ReactNode;
+  /**
+   * CSS class names that can be appended to the component.
+   */
+  className?: string;
+  /**
+   * Callback when banner is dismissed. When passed in, renders banner with a close icon in the top right.
+   */
+  onDismiss?: () => void;
+}
+
+/**
+ * `import {AppNotification} from "@chanzuckerberg/eds";`
+ *
+ * An alert placed at the top of an application which persists across pages.
+ */
+export const AppNotification = ({
+  className,
+  children,
+  color = 'dark',
+  onDismiss,
+  subTitle,
+  title,
+  ...other
+}: Props) => {
+  const componentClassName = clsx(
+    styles['app-notification'],
+    color && styles[`app-notification--color-${color}`],
+    className,
+  );
+
+  return (
+    <div className={componentClassName} role="status" {...other}>
+      <div className={styles['app-notification__content']}>
+        <section>
+          <Text
+            as="div"
+            className={styles['app-notification__title']}
+            preset="headline-sm-bold"
+          >
+            {title}
+          </Text>
+          <Text
+            as="p"
+            className={styles['app-notification__sub-title']}
+            preset="body-md"
+          >
+            {subTitle}
+          </Text>
+          <div className={styles['app-notification__actions']}>{children}</div>
+        </section>
+        {onDismiss && (
+          <Button
+            aria-label="close"
+            className={styles['app-notification__close-btn']}
+            context="default"
+            icon="close"
+            iconLayout="icon-only"
+            onClick={onDismiss}
+            rank="tertiary"
+            variant={color === 'dark' ? 'inverse' : 'neutral'}
+          >
+            Close
+          </Button>
+        )}
+      </div>
+    </div>
+  );
+};