Porsche Design System
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ConfiguratorExamplesUsageAccessibilityAPI
Multi Select Table of Contents Accessibility support Keyboard Combobox Key / stateFunctionDown Arrow Up Arrow Space- Opens the listbox if it is not already displayed without moving focus or changing selection.
- DOM focus remains on the combobox. Listbox Key / stateFunctionDown Arrow Up ArrowMoves visual focus to the next/previous option.Home EndMoves visual focus to the first/last option.ESCCloses listboxEnterSelects an option ARIA enhancements Internal ARIA that is managed by the component: ARIAUsagearia-labelledby="IDREF"References the accessible name of the combobox.aria-describedby="IDREF"References the accessible description and status messages of the combobox.aria-label="STRING"References the accessible name of the listbox.role="status", role="alert"When message and state prop change, the status message is announced.aria-expanded="BOOLEAN"Indicates that the listbox element is displayed/hidden.aria-controls="IDREF"Identifies the element that serves as the listbox.aria-hidden="true"If required attribute is set, the visible indicator is hidden from assistive technologies.aria-multiselectable="true"Indicates that more than one item from the current selectable descendants can be selected.aria-autocomplete="list"Indicates that user input effects results of listbox.aria-haspopup="listbox"Indicates that the combobox will open a listbox.aria-required="true"Indicates if the element is required. Development considerations Disabled state In general, you should prevent using the disabled state. Disabled elements are not reachable (focusable) anymore and can be missed by screen reader users. They can be confusing for sighted users as well by not pointing out why these elements are disabled. Tests Automated TechnologySupportAXE-Core (WCAG 2.2 AA, Best-Practice)✅High-Contrast Mode (light/dark)✅Text-Zoom (200%)✅ Manual TechnologySupportKeyboard✅Screen reader (VoiceOver, NVDA)✅ (Note: Though Safari supports ariaActiveDescendantElement the active option doesn't get announced in VoiceOver)
Global settingsThemeChanges the theme of the application and any Porsche Design System component. It's possible to choose between forced theme light and dark. It's also possible to use auto, which applies light or dark theme depending on the operating system settings automatically.LightDarkAuto (sync with operating system)DirectionThe dir global attribute in HTML changes the direction of text and other content within an element. It's most often used on the <html> tag to set the entire page's direction, which is crucial for supporting languages that are written from right to left (RTL), such as Arabic and Hebrew. For example, using <html dir="rtl"> makes the entire page display from right to left, adjusting the layout and text flow accordingly.LTR (left-to-right)RTL (right-to-left)Text ZoomTo ensure accessibility and comply with WCAG 2.2 AA standards, it is mandatory for web content to support text resizing up to at least 200% without loss of content or functionality. Using relative units like rem is a best practice for achieving this, as they allow the text to scale uniformly based on the user's browser settings.100%130%150%200%