import { KeyboardDevice, KeyboardInputState } from "../../interfaces/input.d.ts";
/**
 * Callback type for keyboard device connection events
 */
export type KeyboardDeviceCallback = (device: KeyboardDevice) => void;
/**
 * Callback type for keyboard input events
 */
export type KeyboardInputCallback = (device: KeyboardDevice, state: KeyboardInputState) => void;
/**
 * Responsible for tracking keyboard state and notifying subscribers of changes.
 */
export declare class KeyboardInputPlugin {
    private _keyboardDevice;
    private _keysState;
    private _onDeviceConnected?;
    private _onInputChanged?;
    /**
     * Create a new KeyboardInputPlugin
     */
    constructor();
    /**
     * Register a callback for device connected events
     *
     * @param callback
     */
    onDeviceConnected(callback: KeyboardDeviceCallback): void;
    /**
     * Register a callback for input changed events
     *
     * @param callback
     */
    onInputChanged(callback: KeyboardInputCallback): void;
    /**
     * Get the current keyboard state
     */
    getState(): KeyboardInputState;
    /**
     * Get the keyboard device
     */
    getDevice(): KeyboardDevice;
    /**
     * Tears down the keyboard resource access and cleans up event listeners
     */
    $teardown(): Promise<void>;
    /**
     * Set up keyboard event listeners
     */
    private _setupKeyboardEvents;
    /**
     * Handle keyboard key down events
     */
    private _handleKeyDown;
    /**
     * Handle keyboard key up events
     */
    private _handleKeyUp;
    /**
     * Notify subscribers of device connected event
     */
    private _notifyDeviceConnected;
    /**
     * Notify subscribers of input changed event
     */
    private _notifyInputChanged;
}