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diff --git a/indra/newview/lltransientfloatermgr.h b/indra/newview/lltransientfloatermgr.h
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+/** 
+ * @file lltransientfloatermgr.h
+ * @brief LLFocusMgr base class
+ *
+ * $LicenseInfo:firstyear=2002&license=viewergpl$
+ * 
+ * Copyright (c) 2002-2009, 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_LLTRANSIENTFLOATERMGR_H
+#define LL_LLTRANSIENTFLOATERMGR_H
+
+#include "llui.h"
+#include "llsingleton.h"
+#include "llfloater.h"
+
+
+/**
+ * Provides functionality to hide transient floaters.
+ */
+class LLTransientFloaterMgr: public LLSingleton<LLTransientFloaterMgr>
+{
+public:
+	LLTransientFloaterMgr();
+	void registerTransientFloater(LLFloater* floater);
+	void unregisterTransientFloater(LLFloater* floater);
+	void addControlView(LLView* view);
+	void removeControlView(LLView* view);
+
+private:
+	void hideTransientFloaters();
+	void leftMouseClickCallback(S32 x, S32 y, MASK mask);
+
+private:
+	std::set<LLFloater*> mTransSet;
+	typedef std::set<LLView*> controls_set_t;
+	controls_set_t mControlsSet;
+};
+
+#endif  // LL_LLTRANSIENTFLOATERMGR_H