useFocus

Handles focus events for the immediate target. Focus events on child elements will be ignored.

API

useFocus<Target extends FocusableElement = FocusableElement>(props: FocusProps<Target>): <Target>

Features

useFocus handles focus interactions for an element. Unlike React's built-in focus events, useFocus does not fire focus events for child elements of the target. This matches DOM behavior where focus events do not bubble. This is similar to the :focus pseudo class in CSS.

To handle focus events on descendants of an element, see useFocusWithin.

Usage

useFocus returns props that you should spread onto the target element:

Name	Type
`focusProps`	`<Target>`
Props to spread onto the target element.

useFocus supports the following options and event handlers:

Name	Type
`onFocusChange`	`(isFocused: boolean) => void`
Handler that is called when the element's focus status changes.
`onBlur`	`(e: FocusEvent<Target>) => void`
Handler that is called when the element loses focus.
`onFocus`	`(e: FocusEvent<Target>) => void`
Handler that is called when the element receives focus.
`isDisabled`	`boolean`
Whether the focus events should be disabled.

Example

This example shows a simple input element that handles focus events with useFocus and logs them to a list below.

Example

import React from 'react';
import {useFocus} from '@react-aria/interactions';

function Example() {
  let [events, setEvents] = React.useState([]);
  let {focusProps} = useFocus({
    onFocus: e => setEvents(
      events => [...events, 'focus']
    ),
    onBlur: e => setEvents(
      events => [...events, 'blur']
    ),
    onFocusChange: isFocused => setEvents(
      events => [...events, `focus change: ${isFocused}`]
    )
  });

  return (
    <>
      <label htmlFor="example">Example</label>
      <input
        {...focusProps}
        id="example" />
      <ul
        style={{
          maxHeight: '200px',
          overflow: 'auto'
        }}>
        {events.map((e, i) => <li key={i}>{e}</li>)}
      </ul>
    </>
  );
}