AnchoredOverlay

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An AnchoredOverlay provides an anchor that will open a floating overlay positioned relative to the anchor. The overlay can be opened and navigated using keyboard or mouse.

Examples

<State default={false}>
  {([isOpen, setIsOpen]) => {
    const openOverlay = React.useCallback(() => setIsOpen(true), [setIsOpen])
    const closeOverlay = React.useCallback(() => setIsOpen(false), [setIsOpen])
    return (
      <AnchoredOverlay
        renderAnchor={anchorProps => (
          <Button {...anchorProps} trailingIcon={TriangleDownIcon}>
            Click me to open
          </Button>
        )}
        open={isOpen}
        onOpen={openOverlay}
        onClose={closeOverlay}
      >
        <Box display="flex" flexDirection="column" maxWidth="300px" padding={2}>
          <p>
            This menu automatically receives a focus trap and focus zone. Use up/down keys to navigate between buttons
          </p>
          <Button mb={1}>Button 1</Button>
          <Button mb={1}>Button 2</Button>
          <Button>Button 3</Button>
        </Box>
      </AnchoredOverlay>
    )
  }}
</State>

<State default={false}>
  {([isOpen, setIsOpen]) => {
    const openOverlay = React.useCallback(() => setIsOpen(true), [setIsOpen])
    const closeOverlay = React.useCallback(() => setIsOpen(false), [setIsOpen])
    return (
      <AnchoredOverlay
        renderAnchor={anchorProps => (
          <Button {...anchorProps} trailingIcon={TriangleDownIcon}>
            Click me to open
          </Button>
        )}
        open={isOpen}
        onOpen={openOverlay}
        onClose={closeOverlay}
      >
        <Box display="flex" flexDirection="column" maxWidth="300px" padding={2}>
          <p>
            This menu automatically receives a focus trap and focus zone. Use up/down keys to navigate between buttons
          </p>
          <Button mb={1}>Button 1</Button>
          <Button mb={1}>Button 2</Button>
          <Button>Button 3</Button>
        </Box>
      </AnchoredOverlay>
    )
  }}
</State>

Props

Name	Type	Default	Description
open	boolean	false	Determines whether the overlay portion of the component should be shown or not.
onOpen	(gesture: 'anchor-click' \| 'anchor-key-press') => unknown		A callback that is called whenever the overlay is currently closed and an "open gesture" is detected.
onClose	(gesture: 'anchor-click' \| 'click-outside' \| 'escape') => unknown		A callback that is called whenever the overlay is currently open and a "close gesture" is detected.
renderAnchor	<T extends React.HTMLAttributes<HTMLElement>>(props: T) => JSX.Element		A custom function component used to render the anchor element. When renderAnchor is null, an anchorRef is required.
anchorRef	React.RefObject<HTMLElement>		An override to the internal `renderAnchor` ref that will be used to position the overlay. When `renderAnchor` is`null`, this can be used to make an anchor that is detached from `AnchoredOverlay`.
anchorId	string		An override to the internal id that will be passed to the anchor.
side	\| 'inside-top' \| 'inside-bottom' \| 'inside-left' \| 'inside-right' \| 'inside-center' \| 'outside-top' \| 'outside-bottom' \| 'outside-left' \| 'outside-right'	'outside-bottom'
align	'start' \| 'center' \| 'end'	'start'
overlayProps	Partial<OverlayProps>		Props to be spread on the internal `Overlay` component.
focusTrapSettings	Partial<FocusTrapHookSettings>		Settings to apply to the focus trap on the internal `Overlay` component.
focusZoneSettings	Partial<FocusZoneHookSettings>		Settings to apply to the focus zone on the internal `Overlay` component.

Status

Alpha

Component props are documented on primer.style/react.
Component does not have any unnecessary third-party dependencies.
Component can adapt to different themes.
Component can adapt to different screen sizes.
Component has 100% test coverage.

Beta

Component is used in a production application.
Common usage examples are documented on primer.style/react.
Common usage examples are documented in storybook stories.
Component has been reviewed by a systems designer and any resulting issues have been addressed.
Component has been manually reviewed by the accessibility team and any resulting issues have been addressed.

Stable

Component API has been stable with no breaking changes for at least one month.
Feedback on API usability has been sought from developers using the component and any resulting issues have been addressed.
Component has corresponding design guidelines documented in the interface guidelines.
Component has corresponding Figma component in the Primer Web library.

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Last edited by mperrotti on May 19, 2022