1 files changed, 66 insertions, 0 deletions
diff --git a/mailnews/base/src/nsMsgRDFDataSource.h b/mailnews/base/src/nsMsgRDFDataSource.h
new file mode 100644
index 000000000..636ebb60a
--- /dev/null
+++ b/mailnews/base/src/nsMsgRDFDataSource.h
@@ -0,0 +1,66 @@
+/* -*- 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 __nsMsgRDFDataSource_h
+#define __nsMsgRDFDataSource_h
+
+#include "nsCOMPtr.h"
+#include "nsIRDFDataSource.h"
+#include "nsIRDFService.h"
+#include "nsIServiceManager.h"
+#include "nsCOMArray.h"
+#include "nsIObserver.h"
+#include "nsITransactionManager.h"
+#include "nsIMsgWindow.h"
+#include "nsIMsgRDFDataSource.h"
+#include "nsWeakReference.h"
+#include "nsCycleCollectionParticipant.h"
+
+class nsMsgRDFDataSource : public nsIRDFDataSource,
+                           public nsIObserver,
+                           public nsSupportsWeakReference,
+                           public nsIMsgRDFDataSource
+{
+ public:
+  nsMsgRDFDataSource();
+  virtual nsresult Init();
+
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsMsgRDFDataSource,
+                                           nsIRDFDataSource)
+  NS_DECL_NSIMSGRDFDATASOURCE
+  NS_DECL_NSIRDFDATASOURCE
+  NS_DECL_NSIOBSERVER
+
+  // called to reset the datasource to an empty state
+  // if you need to release yourself as an observer/listener, do it here
+  virtual void Cleanup();
+
+ protected:
+  virtual ~nsMsgRDFDataSource();
+  nsIRDFService *getRDFService();
+  static bool assertEnumFunc(nsIRDFObserver *aObserver, void *aData);
+  static bool unassertEnumFunc(nsIRDFObserver *aObserver, void *aData);
+  static bool changeEnumFunc(nsIRDFObserver *aObserver, void *aData);
+  nsresult  NotifyObservers(nsIRDFResource *subject, nsIRDFResource *property,
+                            nsIRDFNode *newObject, nsIRDFNode *oldObject, 
+                            bool assert, bool change);
+
+  virtual nsresult NotifyPropertyChanged(nsIRDFResource *resource, 
+                    nsIRDFResource *propertyResource, nsIRDFNode *newNode, 
+                    nsIRDFNode *oldNode = nullptr);
+
+  nsCOMPtr<nsIMsgWindow> mWindow;
+
+  bool m_shuttingDown;
+  bool mInitialized;
+
+ private:
+  nsCOMPtr<nsIRDFService> mRDFService;
+  nsCOMArray<nsIRDFObserver> mObservers;
+};
+
+#endif