/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "nsISupports.idl"

interface nsICancelable;
interface nsIDNSRecord;
interface nsIDNSByTypeRecord;

/**
 * nsIDNSListener
 */
[scriptable, uuid(27d49bfe-280c-49e0-bbaa-f6200c232c3d)]
interface nsIDNSListener : nsISupports
{
    /**
     * called when an asynchronous host lookup completes.
     *
     * @param aRequest
     *        the value returned from asyncResolve.
     * @param aRecord
     *        the DNS record corresponding to the hostname that was resolved.
     *        this parameter is null if there was an error.
     *        depending on the type parameter passed to asyncResolve() the
     *        caller should QueryInterface to either nsIDNSAddrRecord or
     *        nsIDNSByTypeRecord.
     * @param aStatus
     *        if the lookup failed, this parameter gives the reason.
     */
    void onLookupComplete(in nsICancelable aRequest,
                          in nsIDNSRecord  aRecord,
                          in nsresult      aStatus);
};