Bug 35816. Add new interfaces, not yet part of the build. r=hyatt, sr=shaver.

2001-05-15 18:48:17 +00:00
parent 8b4fa3ff4e
commit 3822938b7a
8 changed files with 1521 additions and 0 deletions
--- a/rdf/base/src/nsRDFXMLParser.cpp
+++ b/rdf/base/src/nsRDFXMLParser.cpp
@@ -0,0 +1,138 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "MPL"); you may not use this file except in
+ * compliance with the MPL.  You may obtain a copy of the MPL at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the MPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the MPL
+ * for the specific language governing rights and limitations under the
+ * MPL.
+ *
+ * The Initial Developer of this code under the MPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ *
+ * Contributor(s): 
+ *   Chris Waterson <waterson@netscape.com>
+ */
+
+#include "nsRDFXMLParser.h"
+
+#include "nsIComponentManager.h"
+#include "nsIParser.h"
+#include "nsIRDFContentSink.h"
+#include "nsIStringStream.h"
+#include "nsParserCIID.h"
+
+static NS_DEFINE_CID(kParserCID, NS_PARSER_CID);
+
+NS_IMPL_ISUPPORTS1(nsRDFXMLParser, nsIRDFXMLParser)
+
+NS_IMETHODIMP
+nsRDFXMLParser::Create(nsISupports* aOuter, REFNSIID aIID, void** aResult)
+{
+    if (aOuter)
+        return NS_ERROR_NO_AGGREGATION;
+
+    nsRDFXMLParser* result = new nsRDFXMLParser();
+    if (! result)
+        return NS_ERROR_OUT_OF_MEMORY;
+
+    nsresult rv;
+    NS_ADDREF(result);
+    rv = result->QueryInterface(aIID, aResult);
+    NS_RELEASE(result);
+    return rv;
+}
+
+nsRDFXMLParser::nsRDFXMLParser()
+{
+    NS_INIT_REFCNT();
+    MOZ_COUNT_CTOR(nsRDFXMLParser);
+}
+
+nsRDFXMLParser::~nsRDFXMLParser()
+{
+    MOZ_COUNT_DTOR(nsRDFXMLParser);
+}
+
+NS_IMETHODIMP
+nsRDFXMLParser::ParseAsync(nsIRDFDataSource* aSink, nsIURI* aBaseURI, nsIStreamListener** aResult)
+{
+    nsresult rv;
+
+    nsCOMPtr<nsIRDFContentSink> sink =
+        do_CreateInstance("@mozilla.org/rdf/content-sink;1", &rv);
+
+    if (NS_FAILED(rv)) return rv;
+
+    rv = sink->Init(aBaseURI);
+    if (NS_FAILED(rv)) return rv;
+
+    // We set the content sink's data source directly to our in-memory
+    // store. This allows the initial content to be generated "directly".
+    rv = sink->SetDataSource(aSink);
+    if (NS_FAILED(rv)) return rv;
+
+    nsCOMPtr<nsIParser> parser = do_CreateInstance(kParserCID, &rv);
+    if (NS_FAILED(rv)) return rv;
+
+    nsAutoString charset(NS_LITERAL_STRING("UTF-8"));
+    parser->SetDocumentCharset(charset, kCharsetFromDocTypeDefault);
+    parser->SetContentSink(sink);
+
+    rv = parser->Parse(aBaseURI);
+    if (NS_FAILED(rv)) return rv;
+
+    return CallQueryInterface(parser, aResult);
+}
+
+NS_IMETHODIMP
+nsRDFXMLParser::ParseString(nsIRDFDataSource* aSink, nsIURI* aBaseURI, const nsAReadableString& aString)
+{
+    nsresult rv;
+
+    nsCOMPtr<nsIRDFContentSink> sink =
+        do_CreateInstance("@mozilla.org/rdf/content-sink;1", &rv);
+
+    if (NS_FAILED(rv)) return rv;
+
+    rv = sink->Init(aBaseURI);
+    if (NS_FAILED(rv)) return rv;
+
+    // We set the content sink's data source directly to our in-memory
+    // store. This allows the initial content to be generated "directly".
+    rv = sink->SetDataSource(aSink);
+    if (NS_FAILED(rv)) return rv;
+
+    nsCOMPtr<nsIParser> parser = do_CreateInstance(kParserCID, &rv);
+    if (NS_FAILED(rv)) return rv;
+
+    nsAutoString charset(NS_LITERAL_STRING("UTF-8"));
+    parser->SetDocumentCharset(charset, kCharsetFromDocTypeDefault);
+    parser->SetContentSink(sink);
+
+    rv = parser->Parse(aBaseURI);
+    if (NS_FAILED(rv)) return rv;
+
+    nsCOMPtr<nsIStreamListener> listener =
+        do_QueryInterface(parser);
+
+    if (! listener)
+        return NS_ERROR_FAILURE;
+
+    nsString copy(aString); // XXX sucks, but I ain't touchin' nsIStringStream!
+
+    nsCOMPtr<nsIInputStream> stream;
+    rv = NS_NewStringInputStream(getter_AddRefs(stream), copy);
+    if (NS_FAILED(rv)) return rv;
+
+    listener->OnStartRequest(nsnull, nsnull);
+    listener->OnDataAvailable(nsnull, nsnull, stream, 0, aString.Length());
+    listener->OnStopRequest(nsnull, nsnull, NS_OK);
+
+    return NS_OK;
+}