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+/**
+* @file llnotificationstorage.h
+* @brief LLNotificationStorage class declaration
+*
+* $LicenseInfo:firstyear=2010&license=viewergpl$
+*
+* Copyright (c) 2010, Linden Research, Inc.
+*
+* Second Life Viewer Source Code
+* The source code in this file ("Source Code") is provided by Linden Lab
+* to you under the terms of the GNU General Public License, version 2.0
+* ("GPL"), unless you have obtained a separate licensing agreement
+* ("Other License"), formally executed by you and Linden Lab.  Terms of
+* the GPL can be found in doc/GPL-license.txt in this distribution, or
+* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+*
+* There are special exceptions to the terms and conditions of the GPL as
+* it is applied to this Source Code. View the full text of the exception
+* in the file doc/FLOSS-exception.txt in this software distribution, or
+* online at
+* http://secondlifegrid.net/programs/open_source/licensing/flossexception
+*
+* By copying, modifying or distributing this software, you acknowledge
+* that you have read and understood your obligations described above,
+* and agree to abide by those obligations.
+*
+* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+* COMPLETENESS OR PERFORMANCE.
+* $/LicenseInfo$
+*/
+
+#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