add nsIRDFHistory.h. Not yet in the make system

rdf/datasource/public/nsIRDFHistory.h

@@ -0,0 +1,56 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "NPL"); you may not use this file except in
+ * compliance with the NPL.  You may obtain a copy of the NPL at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the NPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+ * for the specific language governing rights and limitations under the
+ * NPL.
+ *
+ * The Initial Developer of this code under the NPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+
+#ifndef nsIRDFHistory_h__
+#define nsIRDFHistory_h__
+
+#include "nscore.h"
+#include "nsISupports.h"
+
+// {115CE051-A59D-11d2-80B6-006097B76B8E}
+#define NS_IRDFWEBPAGE_IID \
+{ 0x115ce051, 0xa59d, 0x11d2, { 0x80, 0xb6, 0x0, 0x60, 0x97, 0xb7, 0x6b, 0x8e } };
+
+// {1A880051-A59D-11d2-80B6-006097B76B8E}
+#define NS_IRDFHISTORYDATASOURCE_IID \
+{ 0x1a880051, 0xa59d, 0x11d2, { 0x80, 0xb6, 0x0, 0x60, 0x97, 0xb7, 0x6b, 0x8e } };
+
+
+class nsIRDFHistoryDataSource : public nsIRDFDataSource {
+public:
+
+    /**
+     * Add the specified item to history
+     */
+    NS_IMETHOD AddPage (const char* uri) = 0;
+
+    /**
+     * Set the title of the page
+     */
+    NS_IMETHOD SetPageTitle (const char* uri, PRUnichar* title) = 0;
+
+    /**
+     * Remove the page from history
+     */
+    NS_IMETHOD RemovePage (nsIRDFResource* page) = 0;
+
+    /**
+     * Get the uri's last visit date
+     */
+    NS_IMETHOD LastVisitDate (const char* uri, unit32 *date) = 0;
+};