import type { SdkWebViewLoadState } from '@dynamic-labs/types';
/**
 * The surface of a webview load controller that client modules consume.
 * Structurally satisfied by `createWebViewLoadController`'s return value —
 * kept minimal so the core registry doesn't depend on the controller
 * implementation.
 */
export type RegisteredWebViewLoadController = {
    getState: () => SdkWebViewLoadState;
    onStateChanged: (callback: (state: SdkWebViewLoadState) => void) => () => void;
    retry: () => Promise<SdkWebViewLoadState>;
};
export type WebViewLoadControllerRegistry = {
    /** The currently registered controller, or `null` when none exists yet. */
    getController: () => RegisteredWebViewLoadController | null;
    /**
     * Subscribe to controller registrations. Returns an unsubscribe. Needed
     * because modules (e.g. `sdkModule`) are created with the client, while
     * the controller is registered later by the platform extension.
     */
    onRegistered: (callback: (controller: RegisteredWebViewLoadController) => void) => () => void;
    /**
     * Register the webview load controller. Registering again replaces the
     * previous controller (e.g. when the platform extension re-initializes
     * its webview) and notifies `onRegistered` subscribers again.
     */
    register: (controller: RegisteredWebViewLoadController) => void;
};
export declare const createWebViewLoadControllerRegistry: () => WebViewLoadControllerRegistry;