useActiveElement

反应式 document.activeElement

¥Reactive document.activeElement

示例

source

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Current Active Element: null

用法

¥Usage

import { useActiveElement } from '@vueuse/core'

const activeElement = useActiveElement()

watch(activeElement, (el) => {
  console.log('focus changed to', el)
})

组件用法

¥Component Usage

<template>
  <UseActiveElement v-slot="{ element }">
    Active element is {{ element.dataset.id }}
  </UseActiveElement>
</template>

类型声明

export interface UseActiveElementOptions
  extends ConfigurableWindow,
    ConfigurableDocumentOrShadowRoot {
  /**
   * Search active element deeply inside shadow dom
   *
   * @default true
   */
  deep?: boolean
  /**
   * Track active element when it's removed from the DOM
   * Using a MutationObserver under the hood
   * @default false
   */
  triggerOnRemoval?: boolean
}
/**
 * Reactive `document.activeElement`
 *
 * @see https://vueuse.org/useActiveElement
 * @param options
 */
export declare function useActiveElement<T extends HTMLElement>(
  options?: UseActiveElementOptions,
): Ref<T | null | undefined>

源代码

源代码 • 示例 • 文档

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