import { InteractivityChecker } from '@angular/cdk/a11y';
import { ChangeDetectorRef, ElementRef, NgZone, OnInit } from '@angular/core';
import * as i0 from "@angular/core";
/**
 * A directive that autofocuses the decorated element OR the first focusable element inside the decorated element.
 *
 * @export
 */
export declare class UiAutofocusDirective implements OnInit {
    private _el;
    private _zone;
    private _cd;
    private _checker;
    /**
     * Configure if the element should be focused.
     * Defaults to: `true`
     *
     */
    set uiAutofocus(condition: boolean);
    /**
     * Set to `true` if the element needs to be refocused.
     * eg: `[refocus]="refocu$ | async"`
     *
     */
    set refocus(condition: boolean);
    /**
     * Where the selection location should be after the element is focused.
     *
     */
    selectionLocation: 'start' | 'end';
    /**
     * The decorated `HTMLElement` reference.
     *
     */
    element?: HTMLElement;
    private _autofocus;
    /**
     * @ignore
     */
    constructor(_el: ElementRef, _zone: NgZone, _cd: ChangeDetectorRef, _checker: InteractivityChecker);
    /**
     * @ignore
     */
    ngOnInit(): void;
    /**
     * Enqueues a focus event.
     *
     */
    enqueueFocus(): void;
    /**
     * Focus the `element`.
     *
     */
    focus(element?: HTMLElement): void;
    private _getFocusableNode;
    static ɵfac: i0.ɵɵFactoryDeclaration<UiAutofocusDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<UiAutofocusDirective, "[uiAutofocus]", never, { "uiAutofocus": "uiAutofocus"; "refocus": "refocus"; "selectionLocation": "selectionLocation"; }, {}, never, never, false, never>;
}