FocusManager | TanStack Query Русский

The FocusManager manages the focus state within React Query.

It can be used to change the default event listeners or to manually change the focus state.

Its available methods are:

setEventListener
setFocused
isFocused

`focusManager.setEventListener`

setEventListener can be used to set a custom event listener:

import { focusManager } from 'react-query'

focusManager.setEventListener(handleFocus => {
  // Listen to visibilitychange and focus
  if (typeof window !== 'undefined' && window.addEventListener) {
    window.addEventListener('visibilitychange', handleFocus, false)
    window.addEventListener('focus', handleFocus, false)
  }

  return () => {
    // Be sure to unsubscribe if a new handler is set
    window.removeEventListener('visibilitychange', handleFocus)
    window.removeEventListener('focus', handleFocus)
  }
})

`focusManager.setFocused`

setFocused can be used to manually set the focus state. Set undefined to fallback to the default focus check.

import { focusManager } from 'react-query'

// Set focused
focusManager.setFocused(true)

// Set unfocused
focusManager.setFocused(false)

// Fallback to the default focus check
focusManager.setFocused(undefined)

Options

focused: boolean | undefined

`focusManager.isFocused`

isFocused can be used to get the current focus state.

const isFocused = focusManager.isFocused()