import { EthereumProvider, SolanaProvider, ProviderType } from './types';
/**
 * Handles JSON-RPC request coming from an iFrame by delegating to a given Ethereum provider.
 * The result will be passed back to the iFrame.
 *
 * Additionally, it will forward some special events from the wallet, to the iFrame window, for example connect/disconnect/chainChanged
 */
export declare class IframeRpcProviderBridge {
    private iframeWindow;
    /**
     * The Ethereum provider instance.
     * When is null the JSON-RPC bridge is disconnected from the Ethereum provider.
     * */
    private provider;
    /** Listener for Ethereum provider events */
    private processor;
    private listener;
    private connectListener;
    /**
     * Creates an instance of IframeRpcProviderBridge.
     * @param iframeWindow - The iFrame window that will post up general RPC messages and to which the IframeRpcProviderBridge will forward the RPC result.
     *  Also it will receive some special RPC events coming from the wallet, like connect/chainChanged,accountChanged
     */
    constructor(iframeWindow: Window, providerType: ProviderType);
    disconnect(): void;
    onConnect(newProvider: EthereumProvider | SolanaProvider): void;
    /**
     * Process provider events coming from the window (from iFrame).
     */
    private processProviderEventFromWindow;
    /**
     * Process connect event for Solana
     */
    private processConnectEvent;
}