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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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 nsIChannel;

/**
 * An interface to access the the base channel
 * associated with a MultiPartChannel.
 */

[scriptable, uuid(4fefb490-5567-11e5-a837-0800200c9a66)]
interface nsIMultiPartChannel : nsISupports
{
    /**
     * readonly attribute to access the underlying channel
     */
    readonly attribute nsIChannel baseChannel;

    /**
     * Attribute guaranteed to be different for different parts of
     * the same multipart document.
     */
    readonly attribute uint32_t partID;

    /**
     * Set to true when onStopRequest is received from the base channel.
     * The listener can check this from its onStopRequest to determine
     * whether more data can be expected.
     */
    readonly attribute boolean isLastPart;
};

/**
 * An interface that listeners can implement to receive a notification
 * when the last part of the multi-part channel has finished, and the
 * final OnStopRequest has been sent.
  */
[uuid(b084959a-4fb9-41a5-88a0-d0f045ce75cf)]
interface nsIMultiPartChannelListener : nsISupports
{
    /**
     * Sent when all parts have finished and sent OnStopRequest.
     */
    void onAfterLastPart(in nsresult status);
};