Adding files for Load/Save. Not part of build.

content/base/src/nsDOMBuilder.cpp

@@ -0,0 +1,190 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communiactions Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 2002
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *      Boris Zbarsky <bzbarsky@mit.edu>  (original author)
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#include "nsDOMBuilder.h"
+#include "nsDOMError.h"
+#include "nsContentUtils.h"  // for NS_INTERFACE_MAP_ENTRY_CONTENT_CLASSINFO
+#include "nsIDOMDocument.h"
+
+static const char* kLoadAsData = "loadAsData";
+
+nsresult
+NS_NewDOMBuilder(nsIDOMDOMBuilder** aResult,
+                 PRUint16 aMode,
+                 const nsAString & aSchemaType,
+		 nsIDOMDOMImplementation* aDOMImplementation)
+{
+  NS_PRECONDITION(aResult, "Null out ptr?  Who do you think you are, flouting XPCOM contract?");
+  NS_PRECONDITION(aDOMImplementation, "How are we supposed to create documents without a DOMImplementation?");
+
+  nsDOMBuilder* it = new nsDOMBuilder(aMode, aSchemaType, aDOMImplementation);
+  if (!it)
+    return NS_ERROR_OUT_OF_MEMORY;
+
+  return CallQueryInterface(it, aResult);
+}
+
+nsDOMBuilder::nsDOMBuilder(PRUint16 aMode,
+			   const nsAString& aSchemaType,
+			   nsIDOMDOMImplementation* aDOMImplementation)
+{
+  NS_INIT_REFCNT();
+  mDOMImplementation = aDOMImplementation;
+}
+
+nsDOMBuilder::~nsDOMBuilder()
+{
+}
+
+NS_IMPL_ADDREF(nsDOMBuilder)
+NS_IMPL_RELEASE(nsDOMBuilder)
+
+NS_INTERFACE_MAP_BEGIN(nsDOMBuilder)
+  NS_INTERFACE_MAP_ENTRY(nsIDOMDOMBuilder)
+  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMDOMBuilder)
+  NS_INTERFACE_MAP_ENTRY_CONTENT_CLASSINFO(DOMBuilder)
+NS_INTERFACE_MAP_END
+
+// nsIDOMDOMBuilder
+NS_IMETHODIMP
+nsDOMBuilder::GetEntityResolver(nsIDOMDOMEntityResolver** aEntityResolver)
+{
+  *aEntityResolver = mEntityResolver;
+  NS_IF_ADDREF(*aEntityResolver);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsDOMBuilder::SetEntityResolver(nsIDOMDOMEntityResolver* aEntityResolver)
+{
+  mEntityResolver = aEntityResolver;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsDOMBuilder::GetErrorHandler(nsIDOMDOMErrorHandler** aErrorHandler)
+{
+  *aErrorHandler = mErrorHandler;
+  NS_IF_ADDREF(*aErrorHandler);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsDOMBuilder::SetErrorHandler(nsIDOMDOMErrorHandler* aErrorHandler)
+{
+  mErrorHandler = aErrorHandler;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsDOMBuilder::GetFilter(nsIDOMDOMBuilderFilter** aFilter)
+{
+  *aFilter = mFilter;
+  NS_IF_ADDREF(*aFilter);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsDOMBuilder::SetFilter(nsIDOMDOMBuilderFilter* aFilter)
+{
+  mFilter = aFilter;
+  return NS_OK;
+}
+
+
+NS_IMETHODIMP
+nsDOMBuilder::SetFeature(const nsAString& aName, PRBool aState)
+{
+  // XXX We don't know about any features yet
+  return NS_ERROR_DOM_NOT_FOUND_ERR;
+}
+
+NS_IMETHODIMP
+nsDOMBuilder::CanSetFeature(const nsAString& aName, PRBool aState,
+			    PRBool* aCanSet)
+{
+  // XXX We can't set anything
+  *aCanSet = PR_FALSE;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsDOMBuilder::GetFeature(const nsAString& aName, PRBool* aIsOn)
+{
+  // XXX We don't know about any features yet
+  return NS_ERROR_DOM_NOT_FOUND_ERR;
+}
+    
+NS_IMETHODIMP
+nsDOMBuilder::ParseURI(const nsAString& aURI, nsIDOMDocument** aDocument)
+{
+  *aDocument = nsnull;
+
+  nsCOMPtr<nsIDOMDocument> domDoc;
+
+  NS_NAMED_LITERAL_STRING(emptyStr, "");
+  mDOMImplementation->CreateDocument(emptyStr,
+				     emptyStr,
+				     nsnull,
+				     getter_AddRefs(domDoc));
+
+  if (!domDoc)
+    return NS_ERROR_FAILURE;
+
+  // XXX synchronous loading?  We'd have to do something right about now.
+
+  
+  
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+nsDOMBuilder::Parse(nsIDOMDOMInputSource* aInputSource,
+		    nsIDOMDocument** aDocument)
+{
+  *aDocument = nsnull;
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+nsDOMBuilder::ParseWithContext(nsIDOMDOMInputSource* aInputSource,
+			       nsIDOMNode* aContextNode,
+			       PRUint16 aAction)
+{
+  return NS_ERROR_NOT_IMPLEMENTED;
+}

content/base/src/nsDOMBuilder.h

@@ -0,0 +1,77 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communiactions Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 2002
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *      Boris Zbarsky <bzbarsky@mit.edu>  (original author)
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#ifndef nsDOMBuilder_h__
+#define nsDOMBuilder_h__
+
+#include "nsIDOMDOMBuilder.h"
+#include "nsIDOMDOMEntityResolver.h"
+#include "nsIDOMDOMErrorHandler.h"
+#include "nsIDOMDOMBuilderFilter.h"
+#include "nsIDOMDOMImplementation.h"
+#include "nsCOMPtr.h"
+
+/**
+ * This class implements the DOMBuilder from DOM3 Load/Save
+ */
+
+class nsDOMBuilder : public nsIDOMDOMBuilder
+{
+public:
+  nsDOMBuilder(PRUint16 aMode, const nsAString& aSchemaType,
+               nsIDOMDOMImplementation* aDOMImplementation);
+  virtual ~nsDOMBuilder();
+
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIDOMDOMBUILDER
+
+private:
+  nsCOMPtr<nsIDOMDOMEntityResolver> mEntityResolver;
+  nsCOMPtr<nsIDOMDOMErrorHandler> mErrorHandler;
+  nsCOMPtr<nsIDOMDOMBuilderFilter> mFilter;
+  // Strong ref; make sure DOMImplementation never owns us!
+  nsCOMPtr<nsIDOMDOMImplementation> mDOMImplementation;
+};
+
+extern nsresult
+NS_NewDOMBuilder(nsIDOMDOMBuilder** aResult,
+                 PRUint16 aMode,
+                 const nsAString & aSchemaType,
+                 nsIDOMDOMImplementation* aDOMImplementation);
+
+#endif // nsDOMBuilder_h__

content/xml/document/public/nsILoadSaveContentSink.h

@@ -0,0 +1,69 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communiactions Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 2002
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *      Boris Zbarsky <bzbarsky@mit.edu>  (original author)
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#ifndef nsILoadSaveContentSink_h__
+#define nsILoadSaveContentSink_h__
+
+#include "nsIXMLContentSink.h"
+
+#define NS_ILOADSAVE_CONTENT_SINK_IID \
+  { 0xa39ed66a, 0x6ef5, 0x49da, \
+  { 0xb6, 0xe4, 0x9e, 0x15, 0x85, 0xf0, 0xba, 0xc9 } }
+
+/**
+ * This interface represents a content sink used by the DOMBuilder in
+ * DOM3 Load/Save.
+ */
+
+class nsILoadSaveContentSink : public nsIXMLContentSink {
+public:
+
+  NS_DEFINE_STATIC_IID_ACCESSOR(NS_ILOADSAVE_CONTENT_SINK_IID)
+
+};
+
+/**
+ * The nsIXMLContentSink passed to this method must also implement
+ * nsIExpatSink.
+ */
+
+extern nsresult
+NS_NewLoadSaveContentSink(nsILoadSaveContentSink** aResult,
+                          nsIXMLContentSink* aBaseSink);
+
+#endif // nsILoadSaveContentSink_h__

content/xml/document/src/nsLoadSaveContentSink.cpp

@@ -0,0 +1,202 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communiactions Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 2002
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *      Boris Zbarsky <bzbarsky@mit.edu>  (original author)
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#include "nscore.h"
+#include "nsLoadSaveContentSink.h"
+
+nsresult
+NS_NewLoadSaveContentSink(nsILoadSaveContentSink** aResult,
+                          nsIXMLContentSink* aBaseSink)
+{
+  NS_PRECONDITION(aResult, "Null out ptr?  Who do you think you are, flouting XPCOM contract?");
+  NS_ENSURE_ARG_POINTER(aBaseSink);
+  nsLoadSaveContentSink* it;
+  NS_NEWXPCOM(it, nsLoadSaveContentSink);
+  if (!it) {
+    return NS_ERROR_OUT_OF_MEMORY;
+  }
+  
+  nsresult rv = it->Init(aBaseSink);
+  if (NS_FAILED(rv)) {
+    delete it;
+    return rv;
+  }
+
+  return CallQueryInterface(it, aResult);  
+}
+
+nsLoadSaveContentSink::nsLoadSaveContentSink()
+{
+  NS_INIT_REFCNT();
+}
+
+nsLoadSaveContentSink::~nsLoadSaveContentSink()
+{
+}
+
+nsresult
+nsLoadSaveContentSink::Init(nsIXMLContentSink* aBaseSink)
+{
+  NS_PRECONDITION(aBaseSink, "aBaseSink needs to exist");
+  mBaseSink = aBaseSink;
+  mExpatSink = do_QueryInterface(aBaseSink);
+  if (!mExpatSink) {
+    return NS_ERROR_INVALID_ARG;
+  }
+
+  return NS_OK;
+}
+
+NS_IMPL_THREADSAFE_ADDREF(nsLoadSaveContentSink)
+NS_IMPL_THREADSAFE_RELEASE(nsLoadSaveContentSink)
+
+NS_INTERFACE_MAP_BEGIN(nsLoadSaveContentSink)
+  NS_INTERFACE_MAP_ENTRY(nsIXMLContentSink)
+  NS_INTERFACE_MAP_ENTRY(nsIExpatSink)
+  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIXMLContentSink)
+NS_INTERFACE_MAP_END
+
+// nsIContentSink
+NS_IMETHODIMP
+nsLoadSaveContentSink::WillBuildModel(void)
+{
+  return mBaseSink->WillBuildModel();
+}
+
+NS_IMETHODIMP
+nsLoadSaveContentSink::DidBuildModel(PRInt32 aQualityLevel)
+{
+  return mBaseSink->DidBuildModel(aQualityLevel);
+}
+
+NS_IMETHODIMP
+nsLoadSaveContentSink::WillInterrupt(void)
+{
+  return mBaseSink->WillInterrupt();
+}
+
+NS_IMETHODIMP
+nsLoadSaveContentSink::WillResume(void)
+{
+  return mBaseSink->WillResume();
+}
+
+NS_IMETHODIMP
+nsLoadSaveContentSink::SetParser(nsIParser* aParser)
+{
+  return mBaseSink->SetParser(aParser);
+}
+
+NS_IMETHODIMP
+nsLoadSaveContentSink::FlushPendingNotifications(void)
+{
+  return mBaseSink->FlushPendingNotifications();
+}
+
+NS_IMETHODIMP
+nsLoadSaveContentSink::SetDocumentCharset(nsAString& aCharset)
+{
+  return mBaseSink->SetDocumentCharset(aCharset);
+}
+
+// nsIExpatSink
+
+NS_IMETHODIMP
+nsLoadSaveContentSink::HandleStartElement(const PRUnichar *aName, 
+                                          const PRUnichar **aAtts, 
+                                          PRUint32 aAttsCount, 
+                                          PRUint32 aIndex, 
+                                          PRUint32 aLineNumber)
+{
+  return mExpatSink->HandleStartElement(aName, aAtts, aAttsCount, aIndex,
+                                        aLineNumber);
+}
+
+NS_IMETHODIMP
+nsLoadSaveContentSink::HandleEndElement(const PRUnichar *aName)
+{
+  return mExpatSink->HandleEndElement(aName);
+}
+
+NS_IMETHODIMP
+nsLoadSaveContentSink::HandleComment(const PRUnichar *aName)
+{
+  return mExpatSink->HandleComment(aName);
+}
+
+NS_IMETHODIMP
+nsLoadSaveContentSink::HandleCDataSection(const PRUnichar *aData, 
+                                          PRUint32 aLength)
+{
+  return mExpatSink->HandleCDataSection(aData, aLength);
+}
+
+NS_IMETHODIMP
+nsLoadSaveContentSink::HandleDoctypeDecl(const nsAString & aSubset, 
+                                         const nsAString & aName, 
+                                         const nsAString & aSystemId, 
+                                         const nsAString & aPublicId,
+                                         nsISupports* aCatalogData)
+{
+  return mExpatSink->HandleDoctypeDecl(aSubset, aName, aSystemId, aPublicId,
+                                       aCatalogData);
+}
+
+NS_IMETHODIMP
+nsLoadSaveContentSink::HandleCharacterData(const PRUnichar *aData, 
+                                           PRUint32 aLength)
+{
+  return mExpatSink->HandleCharacterData(aData, aLength);
+}
+
+NS_IMETHODIMP
+nsLoadSaveContentSink::HandleProcessingInstruction(const PRUnichar *aTarget, 
+                                                   const PRUnichar *aData)
+{
+  return mExpatSink->HandleProcessingInstruction(aTarget, aData);
+}
+
+NS_IMETHODIMP
+nsLoadSaveContentSink::ReportError(const PRUnichar* aErrorText, 
+                                   const PRUnichar* aSourceText)
+{
+  // XXX Do error reporting here.  I see no reason to call ReportError
+  // on the "base" sink; all we need to do is drop the document on the
+  // floor...
+  return NS_OK;
+}

content/xml/document/src/nsLoadSaveContentSink.h

@@ -0,0 +1,89 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communiactions Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 2002
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *      Boris Zbarsky <bzbarsky@mit.edu>  (original author)
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#ifndef nsLoadSaveContentSink_h__
+#define nsLoadSaveContentSink_h__
+
+#include "nsIExpatSink.h"
+#include "nsIXMLContentSink.h"
+#include "nsILoadSaveContentSink.h"
+#include "nsCOMPtr.h"
+
+/**
+ * This class implements the core of the DOMBuilder for DOM3
+ * Load/Save.  It holds a reference to an actual content sink that
+ * constructs the content model.
+ */
+class nsLoadSaveContentSink : public nsILoadSaveContentSink,
+                              public nsIExpatSink
+{
+public:
+  nsLoadSaveContentSink();
+  virtual ~nsLoadSaveContentSink();
+
+  /**
+   * Initializes the sink.  This will return an error if the arguments
+   * do not satisfy some basic sanity-checks.
+   * @param aBaseSink a "real" sink that the LoadSave sink can use to
+   *                  build the document.  This must be non-null and
+   *                  must also implement nsIExpatSink.
+   */
+  nsresult Init(nsIXMLContentSink* aBaseSink);
+  
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIEXPATSINK
+
+  // nsILoadSaveContentSink
+  NS_IMETHOD WillBuildModel(void);
+  NS_IMETHOD DidBuildModel(PRInt32 aQualityLevel);
+  NS_IMETHOD WillInterrupt(void);
+  NS_IMETHOD WillResume(void);
+  NS_IMETHOD SetParser(nsIParser* aParser);  
+  NS_IMETHOD FlushPendingNotifications(void);
+  NS_IMETHOD SetDocumentCharset(nsAString& aCharset);
+
+private:
+  /**
+   * Pointers to the "real" sink.  We hold on to both just for
+   * convenience sake.
+   */
+  nsCOMPtr<nsIXMLContentSink> mBaseSink;
+  nsCOMPtr<nsIExpatSink> mExpatSink;
+};
+
+#endif // nsLoadSaveContentSink_h__