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lightning-sunbird  0.9+nobinonly
EmbedStream.h
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00001 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
00002  *
00003  * ***** BEGIN LICENSE BLOCK *****
00004  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00005  *
00006  * The contents of this file are subject to the Mozilla Public License Version
00007  * 1.1 (the "License"); you may not use this file except in compliance with
00008  * the License. You may obtain a copy of the License at
00009  * http://www.mozilla.org/MPL/
00010  *
00011  * Software distributed under the License is distributed on an "AS IS" basis,
00012  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00013  * for the specific language governing rights and limitations under the
00014  * License.
00015  *
00016  * The Original Code is mozilla.org code.
00017  *
00018  * The Initial Developer of the Original Code is
00019  *  Zack Rusin <zack@kde.org>.
00020  * Portions created by the Initial Developer are Copyright (C) 2004
00021  * the Initial Developer. All Rights Reserved.
00022  *
00023  * Contributor(s):
00024  *   Lars Knoll <knoll@kde.org>
00025  *   Zack Rusin <zack@kde.org>
00026  *
00027  * Alternatively, the contents of this file may be used under the terms of
00028  * either the GNU General Public License Version 2 or later (the "GPL"), or
00029  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00030  * in which case the provisions of the GPL or the LGPL are applicable instead
00031  * of those above. If you wish to allow use of your version of this file only
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00033  * use your version of this file under the terms of the MPL, indicate your
00034  * decision by deleting the provisions above and replace them with the notice
00035  * and other provisions required by the GPL or the LGPL. If you do not delete
00036  * the provisions above, a recipient may use your version of this file under
00037  * the terms of any one of the MPL, the GPL or the LGPL.
00038  *
00039  * ***** END LICENSE BLOCK ***** */
00040 #include <nsISupports.h>
00041 #include <nsCOMPtr.h>
00042 #include <nsIOutputStream.h>
00043 #include <nsIInputStream.h>
00044 #include <nsILoadGroup.h>
00045 #include <nsIChannel.h>
00046 #include <nsIStreamListener.h>
00047 
00048 class QGeckoEmbed;
00049 
00050 class EmbedStream : public nsIInputStream
00051 {
00052 public:
00053 
00054     EmbedStream();
00055     ~EmbedStream();
00056 
00057     void      InitOwner      (QGeckoEmbed *aOwner);
00058     NS_METHOD Init           (void);
00059 
00060     NS_METHOD OpenStream     (const char *aBaseURI, const char *aContentType);
00061     NS_METHOD AppendToStream (const char *aData, PRInt32 aLen);
00062     NS_METHOD CloseStream    (void);
00063 
00064     NS_METHOD Append         (const char *aData, PRUint32 aLen);
00065 
00066     // nsISupports
00067     NS_DECL_ISUPPORTS
00068     // nsIInputStream
00069     NS_DECL_NSIINPUTSTREAM
00070 
00071 private:
00072     nsCOMPtr<nsIOutputStream>   mOutputStream;
00073     nsCOMPtr<nsIInputStream>    mInputStream;
00074 
00075     nsCOMPtr<nsILoadGroup>      mLoadGroup;
00076     nsCOMPtr<nsIChannel>        mChannel;
00077     nsCOMPtr<nsIStreamListener> mStreamListener;
00078 
00079     PRUint32                    mOffset;
00080     PRBool                      mDoingStream;
00081 
00082     QGeckoEmbed *mOwner;
00083 
00084 };