import { ValueSyncStore } from '../../../util/events/sync-store';
import type { Printable } from 'tree-dump';
import type { UiLifeCycles } from '../types';
import type { DomController } from './DomController';
declare class KeyPress {
    readonly key: string;
    readonly ts: number;
    constructor(key: string, ts: number);
}
/**
 * Keeps track of all pressed down keys.
 */
export declare class KeyController implements UiLifeCycles, Printable {
    readonly dom: DomController;
    /**
     * All currently pressed keys.
     */
    readonly pressed: Set<string>;
    /**
     * History of last 5 pressed keys.
     */
    readonly history: ValueSyncStore<KeyPress[]>;
    constructor(dom: DomController);
    /** ----------------------------------------------------- {@link Printable} */
    start(): () => void;
    /** ----------------------------------------------------- {@link Printable} */
    toString(tab?: string): string;
}
export {};