export type WebViewHandle = {
    injectJavaScript: (script: string) => void;
};
export type WebViewBridgeMessageIdentity = {
    bridgeId: string;
    connectionId: string;
    epoch: number;
    generation: number;
    kind: string;
};
export type WebViewHostConnection<TMessage extends WebViewBridgeMessageIdentity> = {
    connectionId: string;
    disconnect: () => void;
    epoch: number;
    generation: number;
    postMessage: (message: unknown) => void;
    subscribe: (listener: (message: TMessage) => void) => () => void;
};
export type WebViewHostController<TMessage extends WebViewBridgeMessageIdentity> = {
    attach: (handle: WebViewHandle) => void;
    beginLoad: () => void;
    completeLoad: () => void;
    detach: () => void;
    disconnect: () => void;
    handleMessage: (message: TMessage) => boolean;
};
export declare const createWebViewHostController: <TMessage extends WebViewBridgeMessageIdentity>(input: {
    bridgeId: string;
    connectionLabel: string;
    buildActivationScript: (input: {
        bridgeId: string;
        epoch: number;
        phase: "afterLoad";
    }) => string;
    buildHostMessageScript: (input: {
        bridgeId: string;
        connectionId: string;
        epoch: number;
        generation: number;
        message: unknown;
    }) => string;
    onConnected: (connection: WebViewHostConnection<TMessage>) => void;
    onDisconnected?: () => void;
    onActivationRetryExhausted?: (error: Error) => void;
    activationRetryIntervalMs?: number;
    activationRetryTimeoutMs?: number;
}) => WebViewHostController<TMessage>;