import { FocusOrigin } from '@angular/cdk/a11y';
import { EventEmitter, OnDestroy, OnInit } from '@angular/core';
import { AccessibilityOptionsService } from '../options/accessibility-options.service';
import { LocalFocusIndicatorOptions } from './focus-indicator-options/focus-indicator-options';
import * as i0 from "@angular/core";
export declare class FocusIndicatorDirective implements OnInit, OnDestroy {
    readonly optionsService: AccessibilityOptionsService;
    private readonly _elementRef;
    private readonly _focusIndicatorService;
    private readonly _ngZone;
    readonly localOptions: LocalFocusIndicatorOptions;
    /** Specify whether or not we should mark this element as having focus if a child is focused */
    set checkChildren(checkChildren: boolean | string);
    /** Indicate whether or not mouse events should cause the focus indicator to appear - will override any global setting */
    set mouseFocusIndicator(mouseFocusIndicator: boolean | string);
    /** Indicate whether or not touch events should cause the focus indicator to appear - will override any global setting */
    set touchFocusIndicator(touchFocusIndicator: boolean | string);
    /** Indicate whether or not keyboard events should cause the focus indicator to appear - will override any global setting */
    set keyboardFocusIndicator(keyboardFocusIndicator: boolean | string);
    /** Indicate whether or not programmatic events should cause the focus indicator to appear - will override any global setting */
    set programmaticFocusIndicator(programmaticFocusIndicator: boolean | string);
    /** Emit the latest focus state */
    indicator: EventEmitter<boolean>;
    /** Store a private reference for the checkChildren option */
    private _checkChildren;
    /** Store all configuation options*/
    private readonly _options;
    /** Store a reference to the focus handler */
    private _focusIndicator;
    /** Unsubscribe on component destroy */
    private readonly _onDestroy;
    constructor();
    /** Setup the focus monitoring */
    ngOnInit(): void;
    /** Tear down the directive */
    ngOnDestroy(): void;
    /** Focus this element with a specific origin */
    focus(origin?: FocusOrigin, options?: {
        preventScroll: boolean;
    }): void;
    /** Update the focus indicator with the latest options */
    private setOptions;
    static ɵfac: i0.ɵɵFactoryDeclaration<FocusIndicatorDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<FocusIndicatorDirective, "[uxFocusIndicator]", ["ux-focus-indicator"], { "checkChildren": { "alias": "checkChildren"; "required": false; }; "mouseFocusIndicator": { "alias": "mouseFocusIndicator"; "required": false; }; "touchFocusIndicator": { "alias": "touchFocusIndicator"; "required": false; }; "keyboardFocusIndicator": { "alias": "keyboardFocusIndicator"; "required": false; }; "programmaticFocusIndicator": { "alias": "programmaticFocusIndicator"; "required": false; }; }, { "indicator": "indicator"; }, never, never, false, never>;
}