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diff --git a/indra/llcommon/llkeybind.h b/indra/llcommon/llkeybind.h
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+/** 
+ * @file llkeybind.h
+ * @brief Information about key combinations.
+ *
+ * $LicenseInfo:firstyear=2001&license=viewerlgpl$
+ * 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_KEYBIND_H
+#define LL_KEYBIND_H
+
+#include "indra_constants.h"
+
+// KeyData - single key combination (mouse/mask/keyboard)
+class LL_COMMON_API LLKeyData
+{
+public:
+    LLKeyData();
+    LLKeyData(EMouseClickType mouse, KEY key, MASK mask);
+    LLKeyData(EMouseClickType mouse, KEY key, bool ignore_mask);
+    LLKeyData(EMouseClickType mouse, KEY key, MASK mask, bool ignore_mask);
+    LLKeyData(const LLSD &key_data);
+
+    LLSD asLLSD() const;
+    bool isEmpty() const;
+    bool empty() const { return isEmpty(); };
+    void reset();
+    LLKeyData& operator=(const LLKeyData& rhs);
+    bool operator==(const LLKeyData& rhs);
+    bool operator!=(const LLKeyData& rhs);
+
+    bool canHandle(const LLKeyData& data) const;
+    bool canHandle(EMouseClickType mouse, KEY key, MASK mask) const;
+
+    EMouseClickType mMouse;
+    KEY mKey;
+    MASK mMask;
+    // Either to expect exact match or ignore not expected masks
+    bool mIgnoreMasks; 
+};
+
+// One function can bind to multiple Key options
+class LLKeyBind
+{
+public:
+    LLKeyBind() {}
+    LLKeyBind(const LLSD &key_bind);
+
+    bool operator==(const LLKeyBind& rhs);
+    bool operator!=(const LLKeyBind& rhs);
+    bool isEmpty() const;
+    bool empty() const { return isEmpty(); };
+
+    LLSD asLLSD() const;
+
+    bool canHandle(EMouseClickType mouse, KEY key, MASK mask) const;
+    bool canHandleKey(KEY key, MASK mask) const;
+    bool canHandleMouse(EMouseClickType mouse, MASK mask) const;
+
+    // contains specified combination
+    bool hasKeyData(EMouseClickType mouse, KEY key, MASK mask, bool ignore) const;
+    bool hasKeyData(const LLKeyData& data) const;
+    bool hasKeyData(U32 index) const;
+
+    // index of contained LLKeyData
+    S32 findKeyData(EMouseClickType mouse, KEY key, MASK mask, bool ignore) const;
+    S32 findKeyData(const LLKeyData& data) const;
+
+    LLKeyData getKeyData(U32 index) const;
+
+    // these methods enshure there will be no repeats
+    bool addKeyData(EMouseClickType mouse, KEY key, MASK mask, bool ignore);
+    bool addKeyData(const LLKeyData& data);
+    void replaceKeyData(EMouseClickType mouse, KEY key, MASK mask, bool ignore, U32 index);
+    void replaceKeyData(const LLKeyData& data, U32 index);
+    void resetKeyData(S32 index);
+    void clear() { mData.clear(); }
+    // if there any empty LLKeyData in the end of the array, remove them
+    void trimEmpty();
+    U32 getDataCount();
+
+private:
+    typedef std::vector<LLKeyData> data_vector_t;
+    data_vector_t mData;
+};
+
+
+#endif // LL_KEYBIND_H