import { XRInput } from "./XRInput";
import { XRTrackedInputDevice } from "./XRTrackedInputDevice";
/**
 * The manager of XR input.
 */
export declare class XRInputManager {
    private _xrManager;
    private _engine;
    private _added;
    private _removed;
    private _trackedDevices;
    private _statusSnapshot;
    private _listeners;
    /**
     * Returns the tracked device instance.
     * @param type - The tracked input device type
     * @returns The input instance
     */
    getTrackedDevice<T extends XRInput>(type: XRTrackedInputDevice): T;
    /**
     * Add a listener for tracked device changes.
     * @param listener - The listener to add
     */
    addTrackedDeviceChangedListener(listener: (added: readonly XRInput[], removed: readonly XRInput[]) => void): void;
    /**
     * Remove a listener of tracked device changes.
     * @param listener - The listener to remove
     */
    removeTrackedDeviceChangedListener(listener: (added: readonly XRInput[], removed: readonly XRInput[]) => void): void;
    private _handleEvent;
    private _makeUpPointerEvent;
}