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diff --git a/indra/newview/lloutfitobserver.h b/indra/newview/lloutfitobserver.h
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+/**
+ * @file lloutfitobserver.h
+ * @brief Outfit observer facade.
+ *
+ * $LicenseInfo:firstyear=2010&license=viewerlgpl$
+ * 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_OUTFITOBSERVER_H
+#define LL_OUTFITOBSERVER_H
+
+#include "llsingleton.h"
+#include "llmd5.h"
+
+/**
+ * Outfit observer facade that provides simple possibility to subscribe on
+ * BOF(base outfit) replaced, BOF changed, COF(current outfit) changed events.
+ */
+class LLOutfitObserver: public LLInventoryObserver, public LLSingleton<LLOutfitObserver>
+{
+public:
+	virtual ~LLOutfitObserver();
+
+	friend class LLSingleton<LLOutfitObserver>;
+
+	virtual void changed(U32 mask);
+
+	void notifyOutfitLockChanged() { mOutfitLockChanged();  }
+
+	typedef boost::signals2::signal<void (void)> signal_t;
+
+	void addBOFReplacedCallback(const signal_t::slot_type& cb) { mBOFReplaced.connect(cb); }
+
+	void addBOFChangedCallback(const signal_t::slot_type& cb) { mBOFChanged.connect(cb); }
+
+	void addCOFChangedCallback(const signal_t::slot_type& cb) { mCOFChanged.connect(cb); }
+
+	void addCOFSavedCallback(const signal_t::slot_type& cb) { mCOFSaved.connect(cb); }
+
+	void addOutfitLockChangedCallback(const signal_t::slot_type& cb) { mOutfitLockChanged.connect(cb); }
+
+protected:
+	LLOutfitObserver();
+
+	/** Get a version of an inventory category specified by its UUID */
+	static S32 getCategoryVersion(const LLUUID& cat_id);
+
+	static const std::string& getCategoryName(const LLUUID& cat_id);
+
+	bool checkCOF();
+
+	void checkBaseOutfit();
+
+	//last version number of a COF category
+	S32 mCOFLastVersion;
+
+	LLUUID mBaseOutfitId;
+
+	S32 mBaseOutfitLastVersion;
+	std::string mLastBaseOutfitName;
+
+	bool mLastOutfitDirtiness;
+
+	LLMD5 mItemNameHash;
+
+private:
+	signal_t mBOFReplaced;
+	signal_t mBOFChanged;
+	signal_t mCOFChanged;
+	signal_t mCOFSaved;
+
+	/**
+	 * Signal for changing state of outfit lock.
+	 */
+	signal_t mOutfitLockChanged;
+};
+
+#endif /* LL_OUTFITOBSERVER_H */