import type { UIElement } from '@instructure/shared-types';
import { FocusRegionOptions } from './FocusRegionOptions';
/**
 * ---
 * category: utilities/a11y
 * ---
 *
 * Class for focus operations.
 * - Scoping focus within a given context (DOM node),
 * - Mark active element for focus later
 * - Return focus to the marked element
 * @module KeyboardFocusRegion
 */
declare class KeyboardFocusRegion {
    private readonly _options;
    private _focusLaterElement;
    private _needToFocus;
    private _listeners;
    private _raf;
    private _active;
    private _wasDocumentClick?;
    _contextElement?: Node;
    constructor(element: UIElement, options: FocusRegionOptions);
    get focused(): boolean;
    get shouldContainFocus(): boolean;
    get focusable(): Element[];
    get tabbable(): Element[];
    get firstTabbable(): Element | undefined;
    get lastTabbable(): Element | undefined;
    get firstFocusable(): Element | undefined;
    get lastFocusable(): Element | undefined;
    get doc(): Document | undefined;
    get win(): (Window & typeof globalThis) | null | undefined;
    get defaultFocusElement(): Node | null;
    updateElement(element: UIElement): void;
    focusDefaultElement(): void;
    tryFocusOnPositionedElement(positionContainer: Element, focusElement: HTMLElement, tries?: number): void;
    focus(): void;
    blur(): void;
    handleKeyDown: (event: React.KeyboardEvent) => void;
    handleClick: () => void;
    handleWindowBlur: () => void;
    handleFocus: () => void;
    handleFirstTabbableKeyDown: (event: React.KeyboardEvent) => void;
    handleLastTabbableKeyDown: (event: React.KeyboardEvent) => void;
    activate(): void;
    deactivate(): void;
}
export default KeyboardFocusRegion;
export { KeyboardFocusRegion };
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