import type { WebGLRenderer } from 'three';
/**
 * Handles VR controller input during WebXR sessions.
 *
 * Listens for `select` events on controllers (trigger press).
 * Default behavior: toggle play/pause. Tours can override via setSelectHandler.
 *
 * Three.js dispatches XR controller events (select, selectstart, selectend,
 * squeeze, etc.) on the Group returned by renderer.xr.getController().
 * These aren't in the typed Object3DEventMap, so we use EventDispatcher directly.
 */
export declare class XRControllerInput {
    private renderer;
    private onSelect;
    private cleanups;
    private controller0;
    private controller1;
    constructor(renderer: WebGLRenderer);
    /** Set custom handler for controller select (trigger press) */
    setSelectHandler(handler: () => void): void;
    /** Start listening for controller events */
    attach(): void;
    /** Stop listening for controller events */
    detach(): void;
    dispose(): void;
}
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