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105 lines
4.6 KiB
Plaintext
105 lines
4.6 KiB
Plaintext
/* -*- Mode: IDL; 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.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 "nsIInputStream.idl"
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#include "nsIStreamListener.idl"
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%{C++
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#define NS_ISTREAMCONVERTER_KEY "@mozilla.org/streamconv;1"
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%}
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/**
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* The nsIStreamConverterService is a higher level stream converter factory
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* responsible for locating and creating stream converters
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* (nsIStreamConverter).
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*
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* This service retrieves an interface that can convert data from a particular
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* MIME type, to a particular MIME type. It is responsible for any intermediary
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* conversion required in order to get from X to Z, assuming direct conversion
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* is not possible.
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*
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* @author Jud Valeski
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* @see nsIStreamConverter
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*/
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[scriptable, uuid(e086e1e2-40ff-4193-8b8c-bd548babe70d)]
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interface nsIStreamConverterService : nsISupports {
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/**
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* <b>SYNCRONOUS VERSION</b>
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* Converts a stream of one type, to a stream of another type.
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*
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* Use this method when you have a stream you want to convert.
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*
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* @param aFromStream The stream representing the original/raw data.
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* @param aFromType The MIME type of aFromStream.
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* @param aToType The MIME type of the returned stream.
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* @param aContext Either an opaque context, or a converter specific
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* context (implementation specific).
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* @return The converted stream. NOTE: The returned stream
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* may not already be converted. An efficient stream
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* converter implementation will convert data on
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* demand rather than buffering the converted data
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* until it is used.
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*/
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nsIInputStream convert(in nsIInputStream aFromStream,
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in string aFromType,
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in string aToType,
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in nsISupports aContext);
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/**
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* <b>ASYNCRONOUS VERSION</b>
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* Retrieves a nsIStreamListener that receives the original/raw data via its
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* nsIStreamListener::OnDataAvailable() callback, then converts and pushes
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* the data to aListener.
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*
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* Use this method when you want to proxy (and convert) nsIStreamListener
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* callbacks asynchronously.
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*
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* @param aFromType The MIME type of the original/raw data.
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* @param aToType The MIME type of the converted data.
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* @param aListener The listener that receives the converted data.
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* @param aCtxt Either an opaque context, or a converter specific
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* context (implementation specific).
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* @return A nsIStreamListener that receives data via its
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* OnDataAvailable() method.
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*/
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nsIStreamListener asyncConvertData(in string aFromType,
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in string aToType,
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in nsIStreamListener aListener,
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in nsISupports aContext);
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};
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