gecko-dev/netwerk/base/public/nsIStreamLoader.idl

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
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* the provisions above, a recipient may use your version of this file under
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*
* ***** END LICENSE BLOCK ***** */
#include "nsISupports.idl"
#include "nsIChannel.idl"
interface nsIRequest;
interface nsIURI;
interface nsILoadGroup;
interface nsIStreamLoader;
interface nsIInterfaceRequestor;
[scriptable, uuid(359F7990-D4E9-11d3-A1A5-0050041CAF44)]
interface nsIStreamLoaderObserver : nsISupports
{
void onStreamComplete(in nsIStreamLoader loader,
in nsISupports ctxt,
in nsresult status,
in unsigned long resultLength,
[const,array,size_is(resultLength)] in octet result);
};
/**
* Asynchronously loads a channel into a memory buffer.
*/
[scriptable, uuid(31d37360-8e5a-11d3-93ad-00104ba0fd40)]
interface nsIStreamLoader : nsISupports
{
/**
* Initialize this stream loader, and start loading the data.
*
* @param aChannel
* A Channel to load data from. This must not be asyncOpen'd yet!
* @param aObserver
* An observer that will be notified when the data is complete.
* @param aContext
* May be null. Will be passed to the observer.
*
* @note Failure to open the channel will be indicated by an async callback
* to the observer.
*/
void init(in nsIChannel aChannel,
in nsIStreamLoaderObserver aObserver,
in nsISupports aContext);
/**
* Gets the number of bytes read so far.
*/
readonly attribute unsigned long numBytesRead;
/**
* Gets the request that loaded this file.
* null after the request has finished loading.
*/
readonly attribute nsIRequest request;
};