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useFocusTrap

Category @Integrations

Export Size 718 B

Package @vueuse/integrations

Last Changed last year

Category	@Integrations
Export Size	718 B
Package	`@vueuse/integrations`
Last Changed	last year

Reactive wrapper for focus-trap.

For more information on what options can be passed, see createOptions in the focus-trap documentation.

Available in the @vueuse/integrations add-on.

Install

npm i focus-trap

Usage

Basic Usage

<script setup>
import { ref } from 'vue'
import { useFocusTrap } from '@vueuse/integrations/useFocusTrap'

const target = ref()
const { hasFocus, activate, deactivate } = useFocusTrap(target)
</script>

<template>
  <div>
    <button @click="activate()">Activate</button>
    <div ref="target">
      <span>Has Focus: {{ hasFocus }}</span>
      <input type="text" />
      <button @click="deactivate()">Deactivate</button>
    </div>
  </div>
</template>

Automatically Focus

<script setup>
import { ref } from 'vue'
import { useFocusTrap } from '@vueuse/integrations/useFocusTrap'

const target = ref()
const { hasFocus, activate, deactivate } = useFocusTrap(target, { immediate: true })
</script>

<template>
  <div>
    <div ref="target">...</div>
  </div>
</template>

Conditional Rendering

This function can't properly activate focus on elements with conditional rendering using v-if. This is because they do not exist in the DOM at the time of the focus activation. To solve this you need to activate on the next tick.

<script setup>
import { nextTick, ref } from 'vue'

const target = ref()
const { activate, deactivate } = useFocusTrap(target, { immediate: true })

const show = ref(false)  

const reveal = async () => {
  show.value = true
  
  await nextTick()
  activate()
}
</script>

<template>
  <div>
    <div ref="target" v-if="show">...</div>
    
    <button @click="reveal">Reveal and Focus</button>
  </div>
</template>

Using Component

With the UseFocusTrap component, Focus Trap will be activated automatically on mounting this component and deactivated on unmount.

<script setup>
import { ref } from 'vue'
import { UseFocusTrap } from '@vueuse/integrations/useFocusTrap/component'

const show = ref(false)
</script>

<template>
  <UseFocusTrap v-if="show" :options="{ immediate: true }">
    <div class="modal">...</div>
  </UseFocusTrap>
</template>

Type Declarations

Show Type Declarations

export interface UseFocusTrapOptions extends Options {
  /**
   * Immediately activate the trap
   */
  immediate?: boolean
}
export interface UseFocusTrapReturn {
  /**
   * Indicates if the focus trap is currently active
   */
  hasFocus: Ref<boolean>
  /**
   * Indicates if the focus trap is currently paused
   */
  isPaused: Ref<boolean>
  /**
   * Activate the focus trap
   *
   * @see https://github.com/focus-trap/focus-trap#trapactivateactivateoptions
   * @param opts Activate focus trap options
   */
  activate: (opts?: ActivateOptions) => void
  /**
   * Deactivate the focus trap
   *
   * @see https://github.com/focus-trap/focus-trap#trapdeactivatedeactivateoptions
   * @param opts Deactivate focus trap options
   */
  deactivate: (opts?: DeactivateOptions) => void
  /**
   * Pause the focus trap
   *
   * @see https://github.com/focus-trap/focus-trap#trappause
   */
  pause: Fn
  /**
   * Unpauses the focus trap
   *
   * @see https://github.com/focus-trap/focus-trap#trapunpause
   */
  unpause: Fn
}
/**
 * Reactive focus-trap
 *
 * @see https://vueuse.org/useFocusTrap
 * @param target The target element to trap focus within
 * @param options Focus trap options
 * @param autoFocus Focus trap automatically when mounted
 */
export declare function useFocusTrap(
  target: MaybeElementRef,
  options?: UseFocusTrapOptions
): UseFocusTrapReturn

Source

Source • Demo • Docs