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+/**
+* @file llnotificationstorage.h
+* @brief LLNotificationStorage class declaration
+*
+* $LicenseInfo:firstyear=2010&license=viewerlgpl$
+* Second Life Viewer Source Code
+* Copyright (C) 2010, Linden Research, Inc.
+* 
+* This library is free software; you can redistribute it and/or
+* modify it under the terms of the GNU Lesser General Public
+* License as published by the Free Software Foundation;
+* version 2.1 of the License only.
+* 
+* This library is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+* Lesser General Public License for more details.
+* 
+* You should have received a copy of the GNU Lesser General Public
+* License along with this library; if not, write to the Free Software
+* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+* 
+* Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+* $/LicenseInfo$
+*/
+
+#ifndef LL_NOTIFICATIONSTORAGE_H
+#define LL_NOTIFICATIONSTORAGE_H
+
+#include "llnotifications.h"
+
+// Class that saves not responded(unread) notifications.
+// Unread notifications are saved in open_notifications.xml in SL account folder
+//
+// Notifications that should be saved(if unread) are marked with persist="true" in notifications.xml
+// Notifications using functor responders are saved automatically (see llviewermessage.cpp
+// lure_callback_reg for example).
+// Notifications using object responders(LLOfferInfo) need additional tuning. Responder object should
+// be a) serializable(implement LLNotificationResponderInterface),
+// b) registered with LLResponderRegistry (found in llnotificationstorage.cpp).
+class LLPersistentNotificationStorage : public LLSingleton<LLPersistentNotificationStorage>
+{
+	LOG_CLASS(LLPersistentNotificationStorage);
+public:
+
+	LLPersistentNotificationStorage();
+
+	void saveNotifications();
+
+	void loadNotifications();
+
+private:
+
+	bool onPersistentChannelChanged(const LLSD& payload);
+
+	std::string mFileName;
+};
+
+#endif // LL_NOTIFICATIONSTORAGE_H