import { OnDestroy } from '@angular/core';
import { BehaviorSubject } from 'rxjs';
import * as i0 from "@angular/core";
export declare class YearViewService implements OnDestroy {
    private readonly _datepicker;
    grid$: BehaviorSubject<YearViewItem[][]>;
    focused$: BehaviorSubject<number>;
    private _year;
    private readonly _subscription;
    constructor();
    ngOnDestroy(): void;
    setFocus(year: number): void;
    goToPreviousDecade(): void;
    goToNextDecade(): void;
    private createYearGrid;
    /**
     * Get the years in the current decade to display
     */
    private getDecade;
    static ɵfac: i0.ɵɵFactoryDeclaration<YearViewService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<YearViewService>;
}
export interface YearViewItem {
    year: number;
    isCurrentYear: boolean;
    isActiveYear: boolean;
}