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nsSAXXMLReader.h
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00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is mozilla.org code.
00016  *
00017  * The Initial Developer of the Original Code is Robert Sayre.
00018  *
00019  * Portions created by the Initial Developer are Copyright (C) 2005
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *
00024  * Alternatively, the contents of this file may be used under the terms of
00025  * either the GNU General Public License Version 2 or later (the "GPL"), or
00026  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00027  * in which case the provisions of the GPL or the LGPL are applicable instead
00028  * of those above. If you wish to allow use of your version of this file only
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00036  * ***** END LICENSE BLOCK ***** */
00037 
00038 #ifndef nsSAXXMLReader_h__
00039 #define nsSAXXMLReader_h__
00040 
00041 #include "nsCOMPtr.h"
00042 #include "nsIContentSink.h"
00043 #include "nsIExtendedExpatSink.h"
00044 #include "nsIParser.h"
00045 #include "nsIURI.h"
00046 #include "nsISAXXMLReader.h"
00047 #include "nsISAXContentHandler.h"
00048 #include "nsISAXDTDHandler.h"
00049 #include "nsISAXErrorHandler.h"
00050 #include "nsISAXLexicalHandler.h"
00051 
00052 #define NS_SAXXMLREADER_CONTRACTID "@mozilla.org/saxparser/xmlreader;1"
00053 #define NS_SAXXMLREADER_CLASSNAME "SAX XML Reader"
00054 #define NS_SAXXMLREADER_CID  \
00055 { 0xab1da296, 0x6125, 0x40ba, \
00056 { 0x96, 0xd0, 0x47, 0xa8, 0x28, 0x2a, 0xe3, 0xdb} }
00057 
00058 class nsSAXXMLReader : public nsISAXXMLReader,
00059                        public nsIExtendedExpatSink,
00060                        public nsIContentSink
00061 {
00062 public:
00063   NS_DECL_ISUPPORTS
00064   NS_DECL_NSIEXPATSINK
00065   NS_DECL_NSIEXTENDEDEXPATSINK
00066   NS_DECL_NSISAXXMLREADER
00067   NS_DECL_NSIREQUESTOBSERVER
00068   NS_DECL_NSISTREAMLISTENER
00069 
00070   nsSAXXMLReader();
00071 
00072   //nsIContentSink
00073   NS_IMETHOD WillBuildModel();
00074   NS_IMETHOD DidBuildModel();
00075   NS_IMETHOD SetParser(nsIParser* aParser);
00076   
00077   NS_IMETHOD WillInterrupt()
00078   {
00079     return NS_OK;
00080   }
00081 
00082   NS_IMETHOD WillResume()
00083   {
00084     return NS_OK;
00085   }
00086   
00087   virtual void FlushPendingNotifications(mozFlushType aType)
00088   {
00089   }
00090   
00091   NS_IMETHOD SetDocumentCharset(nsACString& aCharset)
00092   {
00093     return NS_OK;
00094   }
00095   
00096   virtual nsISupports *GetTarget()
00097   {
00098     return nsnull;
00099   }
00100 
00101 private:
00102   nsCOMPtr<nsISAXContentHandler> mContentHandler;
00103   nsCOMPtr<nsISAXDTDHandler> mDTDHandler;
00104   nsCOMPtr<nsISAXErrorHandler> mErrorHandler;
00105   nsCOMPtr<nsISAXLexicalHandler> mLexicalHandler;
00106   nsCOMPtr<nsIURI> mBaseURI;
00107   nsCOMPtr<nsIStreamListener> mListener;
00108   nsCOMPtr<nsIRequestObserver> mParserObserver;
00109   PRBool mIsAsyncParse;
00110   static PRBool TryChannelCharset(nsIChannel *aChannel,
00111                                   PRInt32& aCharsetSource,
00112                                   nsACString& aCharset);
00113   nsresult EnsureBaseURI();
00114   nsresult InitParser(nsIRequestObserver *aListener, nsIChannel *aChannel);
00115   nsresult SplitExpatName(const PRUnichar *aExpatName,
00116                           nsString &aURI,
00117                           nsString &aLocalName,
00118                           nsString &aQName);
00119 };
00120 
00121 #endif // nsSAXXMLReader_h__