diff -r 000000000000 -r 6474c204b198 rdf/datasource/src/nsFileSystemDataSource.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rdf/datasource/src/nsFileSystemDataSource.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,79 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsFileSystemDataSource_h__
+#define nsFileSystemDataSource_h__
+
+#include "nsIRDFDataSource.h"
+#include "nsIRDFLiteral.h"
+#include "nsIRDFResource.h"
+#include "nsIRDFService.h"
+#include "nsCOMPtr.h"
+#include "nsString.h"
+#include "mozilla/Attributes.h"
+
+#if defined(XP_UNIX) || defined(XP_WIN)
+#define USE_NC_EXTENSION
+#endif
+
+class FileSystemDataSource MOZ_FINAL : public nsIRDFDataSource
+{
+public:
+    NS_DECL_ISUPPORTS
+    NS_DECL_NSIRDFDATASOURCE
+
+    static nsresult Create(nsISupports* aOuter,
+                           const nsIID& aIID, void **aResult);
+
+    ~FileSystemDataSource() { }
+    nsresult Init();
+
+private:
+    FileSystemDataSource() { }
+
+    // helper methods
+    bool     isFileURI(nsIRDFResource* aResource);
+    bool     isDirURI(nsIRDFResource* aSource);
+    nsresult GetVolumeList(nsISimpleEnumerator **aResult);
+    nsresult GetFolderList(nsIRDFResource *source, bool allowHidden, bool onlyFirst, nsISimpleEnumerator **aResult);
+    nsresult GetName(nsIRDFResource *source, nsIRDFLiteral** aResult);
+    nsresult GetURL(nsIRDFResource *source, bool *isFavorite, nsIRDFLiteral** aResult);
+    nsresult GetFileSize(nsIRDFResource *source, nsIRDFInt** aResult);
+    nsresult GetLastMod(nsIRDFResource *source, nsIRDFDate** aResult);
+
+    nsCOMPtr<nsIRDFService>    mRDFService;
+
+    // pseudo-constants
+    nsCOMPtr<nsIRDFResource>       mNC_FileSystemRoot;
+    nsCOMPtr<nsIRDFResource>       mNC_Child;
+    nsCOMPtr<nsIRDFResource>       mNC_Name;
+    nsCOMPtr<nsIRDFResource>       mNC_URL;
+    nsCOMPtr<nsIRDFResource>       mNC_Icon;
+    nsCOMPtr<nsIRDFResource>       mNC_Length;
+    nsCOMPtr<nsIRDFResource>       mNC_IsDirectory;
+    nsCOMPtr<nsIRDFResource>       mWEB_LastMod;
+    nsCOMPtr<nsIRDFResource>       mNC_FileSystemObject;
+    nsCOMPtr<nsIRDFResource>       mNC_pulse;
+    nsCOMPtr<nsIRDFResource>       mRDF_InstanceOf;
+    nsCOMPtr<nsIRDFResource>       mRDF_type;
+
+    nsCOMPtr<nsIRDFLiteral>        mLiteralTrue;
+    nsCOMPtr<nsIRDFLiteral>        mLiteralFalse;
+
+#ifdef USE_NC_EXTENSION
+    nsresult GetExtension(nsIRDFResource *source, nsIRDFLiteral** aResult);
+    nsCOMPtr<nsIRDFResource>       mNC_extension;
+#endif
+
+#ifdef  XP_WIN
+    bool     isValidFolder(nsIRDFResource *source);
+    nsresult getIEFavoriteURL(nsIRDFResource *source, nsString aFileURL, nsIRDFLiteral **urlLiteral);
+    nsCOMPtr<nsIRDFResource>       mNC_IEFavoriteObject;
+    nsCOMPtr<nsIRDFResource>       mNC_IEFavoriteFolder;
+    nsCString                      ieFavoritesDir;
+#endif
+};
+
+#endif // nsFileSystemDataSource_h__