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Return focus more from focus return hook (#52710)
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stokesman authored Jul 25, 2023
1 parent e05e038 commit be21ed4
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2 changes: 1 addition & 1 deletion packages/compose/README.md
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Expand Up @@ -323,7 +323,7 @@ _Returns_

### useFocusReturn

When opening modals/sidebars/dialogs, the focus must move to the opened area and return to the previously focused element when closed. The current hook implements the returning behavior.
Adds the unmount behavior of returning focus to the element which had it previously as is expected for roles like menus or dialogs.

_Usage_

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17 changes: 11 additions & 6 deletions packages/compose/src/hooks/use-focus-return/index.js
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Expand Up @@ -3,11 +3,12 @@
*/
import { useRef, useEffect, useCallback } from '@wordpress/element';

/** @type {Element|null} */
let origin = null;

/**
* When opening modals/sidebars/dialogs, the focus
* must move to the opened area and return to the
* previously focused element when closed.
* The current hook implements the returning behavior.
* Adds the unmount behavior of returning focus to the element which had it
* previously as is expected for roles like menus or dialogs.
*
* @param {() => void} [onFocusReturn] Overrides the default return behavior.
* @return {import('react').RefCallback<HTMLElement>} Element Ref.
Expand Down Expand Up @@ -54,6 +55,7 @@ function useFocusReturn( onFocusReturn ) {
);

if ( ref.current?.isConnected && ! isFocused ) {
origin ??= focusedBeforeMount.current;
return;
}

Expand All @@ -64,10 +66,13 @@ function useFocusReturn( onFocusReturn ) {
if ( onFocusReturnRef.current ) {
onFocusReturnRef.current();
} else {
/** @type {null | HTMLElement} */ (
focusedBeforeMount.current
/** @type {null|HTMLElement} */ (
! focusedBeforeMount.current.isConnected
? origin
: focusedBeforeMount.current
)?.focus();
}
origin = null;
}
}, [] );
}
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