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68 lines
2.9 KiB
Plaintext
68 lines
2.9 KiB
Plaintext
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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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.
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*
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* The Initial Developer of the Original Code is
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* Jan Wrobel <wrobel@blues.ath.cx>
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* Portions created by the Initial Developer are Copyright (C) 2008
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Jan Odvarko <odvarko@gmail.com>
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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 "nsISupports.idl"
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interface nsIStreamListener;
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/**
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* A channel implementing this interface allows one to intercept its data by
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* inserting intermediate stream listeners.
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*/
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[scriptable, uuid(68167b0b-ef34-4d79-a09a-8045f7c5140e)]
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interface nsITraceableChannel : nsISupports
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{
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/*
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* Replace the channel's listener with a new one, and return the listener
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* the channel used to have. The new listener intercepts OnStartRequest,
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* OnDataAvailable and OnStopRequest calls and must pass them to
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* the original listener after examination. If multiple callers replace
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* the channel's listener, a chain of listeners is created.
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* The caller of setNewListener has no way to control at which place
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* in the chain its listener is placed.
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*
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* Note: The caller of setNewListener must not delay passing
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* OnStartRequest to the original listener.
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*
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* Note2: A channel may restrict when the listener can be replaced.
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* It is not recommended to allow listener replacement after OnStartRequest
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* has been called.
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*/
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nsIStreamListener setNewListener(in nsIStreamListener aListener);
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};
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