react-detect-event-outside

EventOutside component for React.

A component which detects click, focus and touch events outside from it and calls a function to handle the event.

NOTE: We capture events at the document level and wish to support some events which do not bubble, for example to detect when elements outside a component have gained focus. In these situations we: (a) use the useCapture argument of addEventListener, or (b) find a similar event which does bubble (sometimes difficult).

Example

Using the EventOutside component

import React from 'react'
import EventOutside from 'react-detect-event-outside'

const onEvent = (evt, el) => console.log('event happened outside', evt, el)

const SomeComponent = () => (
  <div className="SomeComponent">
    <EventOutside onEventOutside={onEvent}>
      <div className="SomeComponent-inside">
        <h2>Inside</h2>
        <input type="text" />
      </div>
    </EventOutside>
    <div className="SomeComponent-outside">
      <h2>Outside</h2>
      <input type="text" />
    </div>
  </div>
)

export default SomeComponent

Wrapping your own component with the withEventOutside HOC

NOTE: This is useful if you wish to cause some state change within a component, since the handleEventOutside handler is defined within your component.

import React, { Component } from 'react'
import { withEventOutside } from 'react-detect-event-outside'

class Handler extends Component {
  handleEventOutside = (evt, el) =>
    console.log('Handler: event happened outside', evt, el)

  render() {
    const { children } = this.props
    return <div className="SomeComponent-inside">{children}</div>
  }
}

const WrappedHandler = withEventOutside()(Handler)

const SomeComponent = () => (
  <div className="SomeComponent">
    <WrappedHandler>
      <h2>Inside</h2>
      <input type="text" />
    </WrappedHandler>
    <div className="SomeComponent-outside">
      <h2>Outside</h2>
      <input type="text" />
    </div>
  </div>
)

export default SomeComponent

Install

yarn add react-detect-event-outside