Detect outside clicks

Detect clicks outside of an element by listening to its focusout event.

Installation

npm i @bounoable/on-click-outside
pnpm i @bounoable/on-click-outside
yarn add @bounoable/on-click-outside

Usage

This package exports two functions: onClickOutside() and makeFocusOutHandler(). The latter can be useful when working with a framework like Vue.

Vanilla – onClickOutside()

<p id="el">Click outside of me.</p>

import { onClickOutside } from '@bounoable/on-click-outside'

const el = document.querySelector('#el')

const removeListener = onClickOutside(el, (
  target: EventTarget,
  event: FocusEvent
) => {
  console.log(`${el} lost its focus to ${target}.`)
})

// Stop listening to outside clicks.
removeListener()

Vue – makeFocusOutHandler()

Returns an event handler that calls the provided callback function when an event is fired. The callback function is called only if the focus was lost to an outside element.

Note that the tabindex attribute of the element must be manually set, otherwise it cannot be focused and therefore cannot lose its focus.

<template>
  <p tabindex="-1" @focusout="handleFocusOut">
    Click me, then click outside of me.
  </p>
</template>

<script type="ts">
import { defineComponent } from 'vue'
import { makeFocusOutHandler } from '@bounoable/on-click-outside'

export default defineComponent({
  setup() {
    const handleFocusOut = makeFocusOutHandler((
      target: EventTarget,
      event: FocusEvent
    ) => {
      console.log(`${event.currentTarget} lost its focus to ${event.relatedTarget}.`)
    })

    return {
      handleFocusOut,
    }
  }
})
</script>

License

MIT