useBreadcrumbs

Provides the behavior and accessibility implementation for a breadcrumbs component. Breadcrumbs display a hierarchy of links to the current page or resource in an application.

install	`yarn add react-aria`
version	3.32.0
usage	`import {useBreadcrumbs, useBreadcrumbItem} from 'react-aria'`

View ARIA pattern

W3C

API#

useBreadcrumbs(
  (props: AriaBreadcrumbsProps
)): BreadcrumbsAria

useBreadcrumbItem(
  (props: AriaBreadcrumbItemProps,
  , ref: RefObject<FocusableElement>
)): BreadcrumbItemAria

Features#

Breadcrumbs provide a list of links to parent pages of the current page in hierarchical order. useBreadcrumbs and useBreadcrumbItem help implement these in an accessible way.

Support for mouse, touch, and keyboard interactions on breadcrumbs
Support for navigation links via <a> elements or custom element types via ARIA
Localized ARIA labeling support for landmark navigation region
Support for disabled breadcrumbs

Anatomy#

Breadcrumbs consist of a navigation landmark element and a list of links, typically with a visual separator icon between each item. The last link represents the current page in the hierarchy, with the previous links representing the parent pages of the current page. Each of these parent links can be clicked, tapped, or triggered via the Enter key to navigate to that page.

useBreadcrumbs returns props to be spread onto the navigation element:

Name	Type	Description
`navProps`	`DOMAttributes`	Props for the breadcrumbs navigation element.

useBreadcrumbItem returns props to spread onto the individual breadcrumb links:

Name	Type	Description
`itemProps`	`DOMAttributes`	Props for the breadcrumb item link element.

Example#

This example displays a basic list of breadcrumbs using an HTML <nav> element, and a <ol> for the list of links. Each link is a span because we are handling the interactions locally via onPress. useBreadcrumbItem automatically handles exposing these spans as links to assistive technology.

The chevrons between each link are rendered using a span with aria-hidden="true" so that screen readers do not pick them up. You could also render them similarly using SVG icons, CSS :after, or other techniques.

The last link is non-interactive since it represents the current page. This is passed to the last breadcrumb item by cloning the element and adding the isCurrent prop.

import {useBreadcrumbItem, useBreadcrumbs} from 'react-aria';

function Breadcrumbs(props) {
  let { navProps } = useBreadcrumbs(props);
  let childCount = React.Children.count(props.children);

  return (
    <nav {...navProps}>
      <ol style={{ display: 'flex', listStyle: 'none', margin: 0, padding: 0 }}>
        {React.Children.map(props.children, (child, i) =>
          React.cloneElement(child, { isCurrent: i === childCount - 1 }))}
      </ol>
    </nav>
  );
}

function BreadcrumbItem(props) {
  let ref = React.useRef(null);
  let { itemProps } = useBreadcrumbItem({ ...props, elementType: 'span' }, ref);
  return (
    <li>
      <span
        {...itemProps}
        ref={ref}
        style={{
          color: props.isDisabled ? 'var(--gray)' : 'var(--blue)',
          textDecoration: props.isCurrent || props.isDisabled
            ? 'none'
            : 'underline',
          fontWeight: props.isCurrent ? 'bold' : null,
          cursor: props.isCurrent || props.isDisabled ? 'default' : 'pointer'
        }}
      >
        {props.children}
      </span>
      {!props.isCurrent &&
        <span aria-hidden="true" style={{ padding: '0 5px' }}>{'›'}</span>}
    </li>
  );
}

<Breadcrumbs>
  <BreadcrumbItem onPress={() => alert('Pressed Folder 1')}>
    Folder 1
  </BreadcrumbItem>
  <BreadcrumbItem onPress={() => alert('Pressed Folder 2')}>
    Folder 2
  </BreadcrumbItem>
  <BreadcrumbItem>Folder 3</BreadcrumbItem>
</Breadcrumbs>

import {
  useBreadcrumbItem,
  useBreadcrumbs
} from 'react-aria';

function Breadcrumbs(props) {
  let { navProps } = useBreadcrumbs(props);
  let childCount = React.Children.count(props.children);

  return (
    <nav {...navProps}>
      <ol
        style={{
          display: 'flex',
          listStyle: 'none',
          margin: 0,
          padding: 0
        }}
      >
        {React.Children.map(props.children, (child, i) =>
          React.cloneElement(child, {
            isCurrent: i === childCount - 1
          }))}
      </ol>
    </nav>
  );
}

function BreadcrumbItem(props) {
  let ref = React.useRef(null);
  let { itemProps } = useBreadcrumbItem({
    ...props,
    elementType: 'span'
  }, ref);
  return (
    <li>
      <span
        {...itemProps}
        ref={ref}
        style={{
          color: props.isDisabled
            ? 'var(--gray)'
            : 'var(--blue)',
          textDecoration:
            props.isCurrent || props.isDisabled
              ? 'none'
              : 'underline',
          fontWeight: props.isCurrent ? 'bold' : null,
          cursor: props.isCurrent || props.isDisabled
            ? 'default'
            : 'pointer'
        }}
      >
        {props.children}
      </span>
      {!props.isCurrent &&
        (
          <span
            aria-hidden="true"
            style={{ padding: '0 5px' }}
          >
            {'›'}
          </span>
        )}
    </li>
  );
}

<Breadcrumbs>
  <BreadcrumbItem
    onPress={() => alert('Pressed Folder 1')}
  >
    Folder 1
  </BreadcrumbItem>
  <BreadcrumbItem
    onPress={() => alert('Pressed Folder 2')}
  >
    Folder 2
  </BreadcrumbItem>
  <BreadcrumbItem>Folder 3</BreadcrumbItem>
</Breadcrumbs>

import {
  useBreadcrumbItem,
  useBreadcrumbs
} from 'react-aria';

function Breadcrumbs(
  props
) {
  let { navProps } =
    useBreadcrumbs(
      props
    );
  let childCount = React
    .Children.count(
      props.children
    );

  return (
    <nav {...navProps}>
      <ol
        style={{
          display:
            'flex',
          listStyle:
            'none',
          margin: 0,
          padding: 0
        }}
      >
        {React.Children
          .map(
            props
              .children,
            (child, i) =>
              React
                .cloneElement(
                  child,
                  {
                    isCurrent:
                      i ===
                        childCount -
                          1
                  }
                )
          )}
      </ol>
    </nav>
  );
}

function BreadcrumbItem(
  props
) {
  let ref = React.useRef(
    null
  );
  let { itemProps } =
    useBreadcrumbItem({
      ...props,
      elementType: 'span'
    }, ref);
  return (
    <li>
      <span
        {...itemProps}
        ref={ref}
        style={{
          color:
            props
                .isDisabled
              ? 'var(--gray)'
              : 'var(--blue)',
          textDecoration:
            props
                .isCurrent ||
              props
                .isDisabled
              ? 'none'
              : 'underline',
          fontWeight:
            props
                .isCurrent
              ? 'bold'
              : null,
          cursor:
            props
                .isCurrent ||
              props
                .isDisabled
              ? 'default'
              : 'pointer'
        }}
      >
        {props.children}
      </span>
      {!props
        .isCurrent &&
        (
          <span
            aria-hidden="true"
            style={{
              padding:
                '0 5px'
            }}
          >
            {'›'}
          </span>
        )}
    </li>
  );
}

<Breadcrumbs>
  <BreadcrumbItem
    onPress={() =>
      alert(
        'Pressed Folder 1'
      )}
  >
    Folder 1
  </BreadcrumbItem>
  <BreadcrumbItem
    onPress={() =>
      alert(
        'Pressed Folder 2'
      )}
  >
    Folder 2
  </BreadcrumbItem>
  <BreadcrumbItem>
    Folder 3
  </BreadcrumbItem>
</Breadcrumbs>

To render breadcrumbs that navigate to other pages rather than handle events via onPress, use an <a> element for each BreadcrumbItem. This is the default elementType, so the option can be omitted from useBreadcrumbItem.

function BreadcrumbItem(props) {
  let ref = React.useRef(null);
  let { itemProps } = useBreadcrumbItem(props, ref);
  return (
    <li>
      <a
        {...itemProps}
        ref={ref}
        href={props.href}
        style={{
          color: props.isDisabled ? 'var(--gray)' : 'var(--blue)',
          textDecoration: props.isCurrent || props.isDisabled
            ? 'none'
            : 'underline',
          fontWeight: props.isCurrent ? 'bold' : null,
          cursor: props.isCurrent || props.isDisabled ? 'default' : 'pointer'
        }}
      >
        {props.children}
      </a>
      {!props.isCurrent &&
        <span aria-hidden="true" style={{ padding: '0 5px' }}>{'›'}</span>}
    </li>
  );
}

<Breadcrumbs>
  <BreadcrumbItem href="/">Home</BreadcrumbItem>
  <BreadcrumbItem href="/react-aria/">React Aria</BreadcrumbItem>
  <BreadcrumbItem>useBreadcrumbs</BreadcrumbItem>
</Breadcrumbs>

function BreadcrumbItem(props) {
  let ref = React.useRef(null);
  let { itemProps } = useBreadcrumbItem(props, ref);
  return (
    <li>
      <a
        {...itemProps}
        ref={ref}
        href={props.href}
        style={{
          color: props.isDisabled
            ? 'var(--gray)'
            : 'var(--blue)',
          textDecoration:
            props.isCurrent || props.isDisabled
              ? 'none'
              : 'underline',
          fontWeight: props.isCurrent ? 'bold' : null,
          cursor: props.isCurrent || props.isDisabled
            ? 'default'
            : 'pointer'
        }}
      >
        {props.children}
      </a>
      {!props.isCurrent &&
        (
          <span
            aria-hidden="true"
            style={{ padding: '0 5px' }}
          >
            {'›'}
          </span>
        )}
    </li>
  );
}

<Breadcrumbs>
  <BreadcrumbItem href="/">Home</BreadcrumbItem>
  <BreadcrumbItem href="/react-aria/">
    React Aria
  </BreadcrumbItem>
  <BreadcrumbItem>useBreadcrumbs</BreadcrumbItem>
</Breadcrumbs>

function BreadcrumbItem(
  props
) {
  let ref = React.useRef(
    null
  );
  let { itemProps } =
    useBreadcrumbItem(
      props,
      ref
    );
  return (
    <li>
      <a
        {...itemProps}
        ref={ref}
        href={props.href}
        style={{
          color:
            props
                .isDisabled
              ? 'var(--gray)'
              : 'var(--blue)',
          textDecoration:
            props
                .isCurrent ||
              props
                .isDisabled
              ? 'none'
              : 'underline',
          fontWeight:
            props
                .isCurrent
              ? 'bold'
              : null,
          cursor:
            props
                .isCurrent ||
              props
                .isDisabled
              ? 'default'
              : 'pointer'
        }}
      >
        {props.children}
      </a>
      {!props
        .isCurrent &&
        (
          <span
            aria-hidden="true"
            style={{
              padding:
                '0 5px'
            }}
          >
            {'›'}
          </span>
        )}
    </li>
  );
}

<Breadcrumbs>
  <BreadcrumbItem href="/">
    Home
  </BreadcrumbItem>
  <BreadcrumbItem href="/react-aria/">
    React Aria
  </BreadcrumbItem>
  <BreadcrumbItem>
    useBreadcrumbs
  </BreadcrumbItem>
</Breadcrumbs>

Usage#

The following examples show how to use the Breadcrumbs component created in the above examples.

Disabled#

Breadcrumbs can be disabled using the isDisabled prop, passed to each disabled BreadcrumbItem. This indicates that navigation is not currently available. When a breadcrumb is disabled, onPress will not be triggered, navigation will not occur, and links will be marked as aria-disabled for assistive technologies.

<Breadcrumbs>
  <BreadcrumbItem href="/" isDisabled>Home</BreadcrumbItem>
  <BreadcrumbItem href="/react-aria/">React Aria</BreadcrumbItem>
  <BreadcrumbItem>useBreadcrumbs</BreadcrumbItem>
</Breadcrumbs>

<Breadcrumbs>
  <BreadcrumbItem href="/" isDisabled>
    Home
  </BreadcrumbItem>
  <BreadcrumbItem href="/react-aria/">
    React Aria
  </BreadcrumbItem>
  <BreadcrumbItem>useBreadcrumbs</BreadcrumbItem>
</Breadcrumbs>

<Breadcrumbs>
  <BreadcrumbItem
    href="/"
    isDisabled
  >
    Home
  </BreadcrumbItem>
  <BreadcrumbItem href="/react-aria/">
    React Aria
  </BreadcrumbItem>
  <BreadcrumbItem>
    useBreadcrumbs
  </BreadcrumbItem>
</Breadcrumbs>

Name	Type	Description
`id`	`string`	The element's unique identifier. See MDN.
`aria-label`	`string`	Defines a string value that labels the current element.
`aria-labelledby`	`string`	Identifies the element (or elements) that labels the current element.
`aria-describedby`	`string`	Identifies the element (or elements) that describes the object.
`aria-details`	`string`	Identifies the element (or elements) that provide a detailed, extended description for the object.

Name	Type	Description
`navProps`	`DOMAttributes`	Props for the breadcrumbs navigation element.

All DOM attributes supported across both HTML and SVG elements.

Extends: AriaAttributes, ReactDOMAttributes

Name	Type	Description
`id`	`string \| undefined`
`role`	`AriaRole \| undefined`
`tabIndex`	`number \| undefined`
`style`	`CSSProperties \| undefined`
`className`	`string \| undefined`

Name	Type	Default	Description
`children`	`ReactNode`	—	The contents of the breadcrumb item.
`elementType`	`string`	`'a'`	The HTML element used to render the breadcrumb link, e.g. 'a', or 'span'.
`isCurrent`	`boolean`	—	Whether the breadcrumb item represents the current page.
`aria-current`	`'page' \| 'step' \| 'location' \| 'date' \| 'time' \| boolean \| 'true' \| 'false'`	`'page'`	The type of current location the breadcrumb item represents, if `isCurrent` is true.
`isDisabled`	`boolean`	—	Whether the breadcrumb item is disabled.
`onPress`	`( (e: PressEvent )) => void`	—	Handler that is called when the press is released over the target.
`onPressStart`	`( (e: PressEvent )) => void`	—	Handler that is called when a press interaction starts.
`onPressEnd`	`( (e: PressEvent )) => void`	—	Handler that is called when a press interaction ends, either over the target or when the pointer leaves the target.
`onPressChange`	`( (isPressed: boolean )) => void`	—	Handler that is called when the press state changes.
`onPressUp`	`( (e: PressEvent )) => void`	—	Handler that is called when a press is released over the target, regardless of whether it started on the target or not.
`autoFocus`	`boolean`	—	Whether the element should receive focus on render.
`onFocus`	`( (e: FocusEvent<Target> )) => void`	—	Handler that is called when the element receives focus.
`onBlur`	`( (e: FocusEvent<Target> )) => void`	—	Handler that is called when the element loses focus.
`onFocusChange`	`( (isFocused: boolean )) => void`	—	Handler that is called when the element's focus status changes.
`onKeyDown`	`( (e: KeyboardEvent )) => void`	—	Handler that is called when a key is pressed.
`onKeyUp`	`( (e: KeyboardEvent )) => void`	—	Handler that is called when a key is released.
`href`	`string`	—	A URL to link to. See MDN.
`target`	`HTMLAttributeAnchorTarget`	—	The target window for the link. See MDN.
`rel`	`string`	—	The relationship between the linked resource and the current page. See MDN.
`download`	`boolean \| string`	—	Causes the browser to download the linked URL. A string may be provided to suggest a file name. See MDN.
`ping`	`string`	—	A space-separated list of URLs to ping when the link is followed. See MDN.
`referrerPolicy`	`HTMLAttributeReferrerPolicy`	—	How much of the referrer to send when following the link. See MDN.
`aria-label`	`string`	—	Defines a string value that labels the current element.
`aria-labelledby`	`string`	—	Identifies the element (or elements) that labels the current element.
`aria-describedby`	`string`	—	Identifies the element (or elements) that describes the object.
`aria-details`	`string`	—	Identifies the element (or elements) that provide a detailed, extended description for the object.
`id`	`string`	—	The element's unique identifier. See MDN.

Properties

Name	Type	Description
`type`	`'pressstart' \| 'pressend' \| 'pressup' \| 'press'`	The type of press event being fired.
`pointerType`	`PointerType`	The pointer type that triggered the press event.
`target`	`Element`	The target element of the press event.
`shiftKey`	`boolean`	Whether the shift keyboard modifier was held during the press event.
`ctrlKey`	`boolean`	Whether the ctrl keyboard modifier was held during the press event.
`metaKey`	`boolean`	Whether the meta keyboard modifier was held during the press event.
`altKey`	`boolean`	Whether the alt keyboard modifier was held during the press event.

Methods

Method	Description
`continuePropagation(): void`	By default, press events stop propagation to parent elements. In cases where a handler decides not to handle a specific event, it can call `continuePropagation()` to allow a parent to handle it.

'mouse'
  | 'pen'
  | 'touch'
  | 'keyboard'
  | 'virtual'

BaseEvent<ReactKeyboardEvent<any>>

SyntheticEvent & {stopPropagation: () => void,
continuePropagation: () => void
}