зеркало из https://github.com/mozilla/gecko-dev.git
79 строки
2.6 KiB
C++
79 строки
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef nsIFormatConverter_h__
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#define nsIFormatConverter_h__
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#include "nsISupports.h"
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#include "nsString.h"
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class nsVoidArray;
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// {948A0023-E3A7-11d2-96CF-0060B0FB9956}
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#define NS_IFORMATCONVERTER_IID \
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{ 0x948a0023, 0xe3a7, 0x11d2, { 0x96, 0xcf, 0x0, 0x60, 0xb0, 0xfb, 0x99, 0x56 } }
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class nsIFormatConverter : public nsISupports {
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public:
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static const nsIID& GetIID() { static nsIID iid = NS_IFORMATCONVERTER_IID; return iid; }
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/**
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* Get the list of the "input" data flavors, in otherwords, the flavors
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* that this converter can convert "from" (the incoming data to the converter)
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*
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* @param aDataFlavorList fills list with supported flavors
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*/
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NS_IMETHOD GetInputDataFlavors(nsVoidArray ** aDataFlavorList) = 0;
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/**
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* Get the list of the "output" data flavors, in otherwords, the flavors
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* that this converter can convert "to" (the outgoing data of the converter)
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*
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* @param aDataFlavorList fills list with supported flavors
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*/
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NS_IMETHOD GetOutputDataFlavors(nsVoidArray ** aDataFlavorList) = 0;
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/**
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* Determines whether a converion from one flavor to another is supported
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*
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* @param aFromFormatConverter flavor to convert from
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* @param aFromFormatConverter flavor to convert to
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* @returns returns NS_OK if it can be converted
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*/
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NS_IMETHOD CanConvert(nsString * aFromDataFlavor, nsString * aToDataFlavor) = 0;
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/**
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* Determines whether a converion from one flavor to another
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*
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* @param aFromFormatConverter flavor to convert from
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* @param aFromFormatConverter flavor to convert to (destination own the memory)
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* @returns returns NS_OK if it was converted
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*/
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NS_IMETHOD Convert(nsString * aFromDataFlavor, void * aFromData, PRUint32 aDataLen,
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nsString * aToDataFlavor, void ** aToData, PRUint32 * aDataToLen) = 0;
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};
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#endif
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