import { OnInit, OnDestroy, AfterViewInit, ElementRef } from '@angular/core';
import { Observable, Subscription } from 'rxjs';
import { Viewport } from '../../utils/viewport';
export declare class OptionsComponent<D> implements OnInit, AfterViewInit, OnDestroy {
    ctx: Options<D>;
    wrapper: ElementRef<HTMLDivElement>;
    viewport: Viewport<D>;
    options: D[];
    sbcr: Subscription;
    private visibleCount;
    ngOnInit(): void;
    ngAfterViewInit(): void;
    ngOnDestroy(): void;
    direction(): {
        value: string;
        params: {
            y: string;
        };
    };
}
export interface Options<D> {
    stream: Observable<D[]>;
    select: (option: D) => void;
    title: (option: D) => string;
    isSelected?: (option: D) => boolean;
    isDisabled?: (option: D) => boolean;
    style?: OptionsStyle;
    onBlur?: (e: FocusEvent) => void;
}
export declare type OptionsStyle = 'default' | 'static' | 'colors';