import { AfterViewInit, DestroyRef, QueryList } from "@angular/core";
import { Subscription } from "rxjs";
import { EnterAsTabCallbackFunction } from "../../interfaces";
import { FormItem } from "../classes/formitem.class";
import * as i0 from "@angular/core";
export declare class CfEnterAsTabDirective implements AfterViewInit {
    destroyRef: DestroyRef;
    skipTypes: (string | null)[];
    enterAsTabCallbackFunction: EnterAsTabCallbackFunction | null;
    items: QueryList<FormItem>;
    subscriptions: Subscription[];
    get availableIndexes(): number[];
    get lastAvailableIndex(): number | null;
    get firstAvailableIndex(): number | null;
    ngAfterViewInit(): void;
    setupSubscriptions(): void;
    focusOnNextTarget(actualIndex: number): void;
    clearSubscriptions(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<CfEnterAsTabDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<CfEnterAsTabDirective, "[cfEnterAsTab]", never, { "skipTypes": { "alias": "skipTypes"; "required": false; }; "enterAsTabCallbackFunction": { "alias": "enterAsTabCallbackFunction"; "required": false; }; }, {}, ["items"], never, true, never>;
}