import { QueryList } from '@angular/core';
import { Subject } from 'rxjs';

interface ListItem {
    disabled?: boolean;
}
declare class ListManager<T extends ListItem> {
    items: QueryList<T> | T[];
    tabOut: Subject<void>;
    change: Subject<number>;
    previousActiveItem: T | null;
    previousActiveItemIndex: number | null;
    private _activeItemIndex;
    private _activeItem;
    private _homeAndEnd;
    private skipItemFn;
    get activeItemIndex(): number | null;
    get activeItem(): T | null;
    constructor(items: QueryList<T> | T[]);
    skipItem(item: (item: T) => boolean): this;
    withHomeAndEnd(enabled?: boolean): this;
    setActiveItem(item: number | T): void;
    onKeydown(event: KeyboardEvent, preventTab?: boolean): void;
    updateActiveItem(item: number | T): void;
    setFirstItemActive(): void;
    setLastItemActive(): void;
    setNextItemActive(): void;
    setPreviousItemActive(): void;
    private getNextIndex;
    private getItemsList;
}

export { ListManager };
export type { ListItem };