DropdownMenu
Shows compact actions from a trigger.
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Usage
Astro examples assume UIPrimitives is mounted once in your root layout. Do not add the runtime next to each component instance.
Choose your target
Add this component
Choose the package for your runtime. All adapters share the Lumen stylesheet. Use the matching registry command when you want a local wrapper for that framework.
Glass
Add the glass prop to apply the shared blur, saturation, border, and highlight tokens. Glass reads best over vivid content, so place the surface above imagery or color.
API reference
Lumen-specific props and runtime attributes for the Astro primitive. React props follow the same names; Elements use equivalent kebab-case attributes where custom elements expose them.
| Attribute | Values | Default | Description |
|---|---|---|---|
| glass | boolean | "subtle" | "strong" | false | Applies the tokenized liquid-glass surface treatment with backdrop-filter fallbacks; "subtle" and "strong" adjust the fill intensity. |
| surface | "default" | "glass" | "default" | Deprecated alias for glass; surface="glass" maps to glass={true}. |
| data-ui-trigger | boolean attribute | - | Marks the child trigger that opens and closes the adjacent disclosure panel. |
| [role="menu"] | child panel | - | Marks the dropdown panel that contains role="menuitem" actions. |
| class, className | string | "" | Merges custom classes with the generated ui-* root classes. |
| ...native attributes | HTML attributes | - | Forwards standard attributes to the root element unless the component consumes them. |
Keyboard interactions
Keyboard behavior provided by the Astro UIPrimitives runtime for this component.
| Key | Action |
|---|---|
| ArrowDown, Enter, Space on trigger | Open the panel and move focus to the first focusable item. |
| Escape in panel | Close the panel and return focus to the trigger. |
| ArrowDown, ArrowUp in panel | Move focus through focusable panel items, wrapping at the ends. |
| Home, End in panel | Move focus to the first or last focusable panel item. |