/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 */
import { type FocusTrapInitialFocus } from '@lexical/a11y';
import { type RefCallback } from 'react';
export type { FocusTrapInitialFocus } from '@lexical/a11y';
/**
 * Returns a `RefCallback` that registers the attached DOM element as a
 * focus-trap container with {@link FocusTrapExtension}. The trap
 * activates when `isActive` is `true` and the element is mounted, and is
 * released when the element detaches or `isActive` becomes `false`.
 *
 * ```tsx
 * const trapRef = useLexicalFocusTrapRef(true, 'container');
 * return <div ref={trapRef} tabIndex={-1}>…</div>;
 * ```
 *
 * `allowOutside` is the escape hatch for descendants that portal outside the
 * container (autocomplete popups, tooltips): return `true` for those targets so
 * the trap lets them keep focus instead of pulling it back. It is held in a ref
 * and read at event time, so passing an inline lambda is fine — it does not
 * re-create the trap on every render.
 *
 * Multiple elements can use this hook simultaneously — each gets its
 * own independent focus trap.
 *
 * Requires `FocusTrapExtension` in the editor's extension tree.
 */
export declare function useLexicalFocusTrapRef(isActive: boolean, initialFocus?: FocusTrapInitialFocus, allowOutside?: (target: HTMLElement) => boolean): RefCallback<HTMLElement>;