import type { Readable } from 'svelte/store';
export interface ListKeyManagerConfig<T> {
    /**
     * Stream of all the managed items.
     */
    items: Readable<T[]>;
    /**
     * Whether the list should wrap when reaching the end.
     *
     * @defaultValue `false`
     */
    wrap?: boolean;
    /**
     * Whether vertical selection should be enabled.
     *
     *  @defaultValue `true`
     */
    vertical?: boolean;
    /**
     * Direction in which the selection can be moved.
     */
    horizontal?: 'ltr' | 'rtl' | null;
    /**
     * Activate the first and last items respectively when the `Home` or `End` key is pressed.
     *
     * @defaultValue `false`
     */
    homeAndEnd?: boolean;
    /**
     * Whether to turns on typeahead mode which allows users to set the active item by typing.
     *
     * @defaultValue `false`
     */
    typeahead?: boolean;
    /**
     * Function that determines whether the given item should be skipped.
     */
    skipPredicate?: (item: T) => boolean;
    /**
     * Function that is called any time the `TAB` key is pressed, so components can react when focus is shifted off of the list.
     */
    tabOut?: () => void;
    /**
     * Function that is called any time the `TAB` key is pressed, so components can react when focus is shifted off of the list.
     */
    onActivate?: (item: T) => void;
}
export interface ListKeyManagerReturn<T> {
    /**
     * Stream that emits whenever the active index of the list manager changes.
     */
    activeItemIndex: Readable<number>;
    /**
     * Stream that emits whenever the active index of the list manager changes.
     */
    activeItem: Readable<T | null>;
    /**
     * Index of the currently active item.
     */
    currentActiveItemIndex: number;
    /**
     * The active item.
     */
    currentActiveItem: T | null;
    /**
     * Sets the active item to the first enabled item in the list.
     */
    setFirstItemActive(): void;
    /**
     * Sets the active item to the last enabled item in the list.
     */
    setLastItemActive(): void;
    /**
     * Sets the active item to the next enabled item in the list.
     */
    setNextItemActive(): void;
    /**
     * Sets the active item to a previous enabled item in the list.
     */
    setPreviousItemActive(): void;
    /**
     * Index of the item or the item to be set as active.
     */
    setActiveItem(item: T | number): void;
    /**
     * Sets the active item depending on the key event passed in.
     */
    onKeydown(event: KeyboardEvent): void;
    /**
     * Cleanup method.
     */
    destroy(): void;
}