/**
 * FocusManager.ts
 *
 * Copyright (c) Microsoft Corporation. All rights reserved.
 * Licensed under the MIT license.
 *
 * Manages focusable elements for better keyboard navigation (web version)
 */
import { FocusCandidateInternal } from '../../common/utils/AutoFocusHelper';
import { FocusableComponentInternal, FocusableComponentStateCallback, FocusManager as FocusManagerBase, StoredFocusableComponent as StoredFocusableComponentBase } from '../../common/utils/FocusManager';
export { FocusableComponentStateCallback };
export interface StoredFocusableComponent extends StoredFocusableComponentBase {
    origTabIndex?: number;
    origAriaHidden?: string;
    curTabIndex?: number;
    curAriaHidden?: boolean;
}
export declare class FocusManager extends FocusManagerBase {
    private static _setTabIndexTimer;
    private static _setTabIndexElement;
    private static _lastFocusedProgrammatically;
    constructor(parent: FocusManager | undefined);
    static initListeners(): void;
    protected addFocusListenerOnComponent(component: FocusableComponentInternal, onFocus: () => void): void;
    protected removeFocusListenerFromComponent(component: FocusableComponentInternal, onFocus: () => void): void;
    protected focusComponent(component: FocusableComponentInternal): boolean;
    static setLastFocusedProgrammatically(element: HTMLElement | undefined): void;
    static getLastFocusedProgrammatically(reset?: boolean): HTMLElement | undefined;
    private static _isComponentAvailable;
    private static _getFirstFocusable;
    static focusFirst(last?: boolean): void;
    protected resetFocus(focusFirstWhenNavigatingWithKeyboard: boolean): void;
    protected _updateComponentFocusRestriction(storedComponent: StoredFocusableComponent): void;
    private static _setTabIndex;
    private static _setAriaHidden;
    static sortAndFilterAutoFocusCandidates(candidates: FocusCandidateInternal[]): FocusCandidateInternal[];
}
export declare function applyFocusableComponentMixin(Component: any, isConditionallyFocusable?: Function): void;
export default FocusManager;