31 lines
901 B
JavaScript
31 lines
901 B
JavaScript
import { RESTORE_FOCUS_TIMEOUT } from './constants.js'
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const globalState = {}
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export default globalState
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const focusPreviousActiveElement = () => {
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if (globalState.previousActiveElement && globalState.previousActiveElement.focus) {
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globalState.previousActiveElement.focus()
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globalState.previousActiveElement = null
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} else if (document.body) {
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document.body.focus()
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}
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}
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// Restore previous active (focused) element
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export const restoreActiveElement = () => {
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return new Promise(resolve => {
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const x = window.scrollX
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const y = window.scrollY
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globalState.restoreFocusTimeout = setTimeout(() => {
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focusPreviousActiveElement()
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resolve()
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}, RESTORE_FOCUS_TIMEOUT) // issues/900
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/* istanbul ignore if */
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if (typeof x !== 'undefined' && typeof y !== 'undefined') { // IE doesn't have scrollX/scrollY support
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window.scrollTo(x, y)
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}
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})
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}
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