import { VzBaseElement } from '../core/base-element.js';
/**
 * <vz-tour> - Interactive panoramic tour with navigable probes.
 *
 * @example
 * ```html
 * <vz-tour start-probe-id="lobby" style="width:100%; aspect-ratio:16/9">
 *   <vz-tour-img probe-id="lobby" format="MONO_360" src="lobby.jpg" title="Lobby">
 *     <vz-tour-portal to="office" lat="10" lon="45" title="Go to Office" />
 *   </vz-tour-img>
 *   <vz-tour-img probe-id="office" format="MONO_360" src="office.jpg" title="Office">
 *     <vz-tour-portal to="lobby" lat="0" lon="-135" title="Back to Lobby" />
 *   </vz-tour-img>
 * </vz-tour>
 * ```
 */
export declare class VzTourElement extends VzBaseElement {
    private renderer;
    private containerEl;
    private probes;
    private currentProbeId;
    private hotspotManager;
    private textureCache;
    private controlsOverlay;
    private compass;
    private fullscreenButton;
    private vrButton;
    private xrManager;
    private cleanupFullscreen;
    private loader;
    /**
     * True once the license resolves without the `tours` feature. In that state
     * the tour degrades to a single static panorama (the start probe): portal
     * navigation between probes is disabled.
     */
    private toursLocked;
    /**
     * A tour-id embed (`<vz-tour tour-id api-key>` with no DOM children) fetches
     * its probe/portal graph from the delivery API and injects the equivalent
     * <vz-tour-img>/<vz-tour-portal> children before onConnected() runs — so
     * dashboard-authored tours load in a hosted embed. A DOM-authored tour (any
     * <vz-tour-img> child) wins and skips the fetch entirely. Mirrors
     * VzMediaElement.beforeConnect()'s content-id hydration.
     */
    protected beforeConnect(): Promise<void> | void;
    private hydrateFromDeliveryApi;
    /** Inject the fetched tour graph as the DOM children parseProbes() expects. */
    private applyTourToDom;
    protected onConnected(): void;
    protected onDisconnected(): void;
    protected onAttributeChanged(_name: string): void;
    protected onResize(): void;
    /**
     * Interactive tours are a paid feature, and WebXR (Enter-VR) is gated
     * separately. Once the license resolves, enforce both.
     *
     * - tours not licensed → graceful downgrade to a single static panorama: the
     *   start probe stays visible but portal navigation is disabled (existing
     *   portals cleared, future ones suppressed).
     * - webxr not licensed → remove the VR button (flat viewing continues).
     */
    protected onLicenseResolved(): void;
    /** Navigate to a specific probe by ID */
    navigateTo(probeId: string): Promise<void>;
    /** Get current probe ID */
    get currentProbe(): string | null;
    toggleFullscreen(): void;
    /** Parse all <vz-tour-img> children into the probes map */
    private parseProbes;
    /** Load a texture, using cache if available */
    private loadOrGetTexture;
    /** Preload textures for neighboring probes (fire-and-forget) */
    private preloadNeighbors;
}
/** Register the <vz-tour> custom element */
export declare function registerTour(): void;
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