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106 lines
4.1 KiB
Plaintext
106 lines
4.1 KiB
Plaintext
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsIStreamListener.idl"
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interface nsIRequest;
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interface nsIStreamLoader;
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[scriptable, uuid(359F7990-D4E9-11d3-A1A5-0050041CAF44)]
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interface nsIStreamLoaderObserver : nsISupports
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{
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/**
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* Called when the entire stream has been loaded.
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*
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* @param loader the stream loader that loaded the stream.
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* @param ctxt the context parameter of the underlying channel
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* @param status the status of the underlying channel
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* @param resultLength the length of the data loaded
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* @param result the data
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*
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* This method will always be called asynchronously by the
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* nsIStreamLoader involved, on the thread that called the
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* loader's init() method.
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*
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* If the observer wants to take over responsibility for the
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* data buffer (result), it returns NS_SUCCESS_ADOPTED_DATA
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* in place of NS_OK as its success code. The loader will then
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* "forget" about the data, and not free() it in its own
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* destructor; observer must call free() when the data is
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* no longer required.
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*/
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void onStreamComplete(in nsIStreamLoader loader,
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in nsISupports ctxt,
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in nsresult status,
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in unsigned long resultLength,
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[const,array,size_is(resultLength)] in octet result);
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};
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/**
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* Asynchronously loads a channel into a memory buffer.
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*
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* To use this interface, first call init() with a nsIStreamLoaderObserver
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* that will be notified when the data has been loaded. Then call asyncOpen()
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* on the channel with the nsIStreamLoader as the listener. The context
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* argument in the asyncOpen() call will be passed to the onStreamComplete()
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* callback.
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*
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* XXX define behaviour for sizes >4 GB
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*/
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[scriptable, uuid(8ea7e890-8211-11d9-8bde-f66bad1e3f3a)]
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interface nsIStreamLoader : nsIStreamListener
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{
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/**
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* Initialize this stream loader, and start loading the data.
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*
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* @param aObserver
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* An observer that will be notified when the data is complete.
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*/
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void init(in nsIStreamLoaderObserver aObserver);
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/**
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* Gets the number of bytes read so far.
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*/
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readonly attribute unsigned long numBytesRead;
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/**
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* Gets the request that loaded this file.
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* null after the request has finished loading.
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*/
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readonly attribute nsIRequest request;
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};
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