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DBNotification: Add default ARIA role attributes for accessibility #4815

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DBNotification: Add default ARIA role attributes for accessibility #4815

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Copilot Aug 20, 2025
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Copilot Aug 20, 2025
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Merge branch 'main' into copilot/fix-4206
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mfranzke Aug 26, 2025
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2 changes: 2 additions & 0 deletions packages/components/src/components/notification/notification.lite.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@ import {
cls,
getBoolean,
getBooleanAsString,
getNotificationRole,
stringPropVisible
} from '../../utils';
import DBButton from '../button/button.lite';
Expand Down Expand Up @@ -41,6 +42,7 @@ export default function DBNotification(props: DBNotificationProps) {
ref={_ref}
id={props.id}
class={cls('db-notification', props.className)}
role={getNotificationRole(props.semantic)}
aria-live={props.ariaLive}
Comment on lines +45 to 46
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You could set role="alert" and aria-live="off", which is contradictory (https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/Guides/Live_regions).
You could derive a default aria-live from the role only when ariaLive isn’t provided (alert --> assertive, status -->polite) to avoid invalid combinations and maximize a11y compatibility.

something like

const role = getNotificationRole(props.semantic);
const derivedLive =
role === 'alert' ? 'assertive' :
role === 'status' ? 'polite' :
undefined;

data-semantic={props.semantic}
data-variant={props.variant}
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18 changes: 18 additions & 0 deletions packages/components/src/utils/index.ts
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Expand Up @@ -157,3 +157,21 @@ export const isKeyboardEvent = <T>(
event?: ClickEvent<T> | GeneralKeyboardEvent<T>
): event is GeneralKeyboardEvent<T> =>
(event as GeneralKeyboardEvent<T>).key !== undefined;

/**
* Maps semantic values to appropriate ARIA roles for notifications
* @param semantic - The semantic type of the notification
* @returns The appropriate ARIA role or undefined for default behavior
*/
export const getNotificationRole = (semantic?: string): string | undefined => {
switch (semantic) {
case 'critical':
case 'warning':
return 'alert';
case 'informational':
case 'successful':
return 'status';
default:
return undefined;
}
};