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diff --git a/indra/newview/llpanelemojicomplete.h b/indra/newview/llpanelemojicomplete.h
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+++ b/indra/newview/llpanelemojicomplete.h
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+/**
+* @file llpanelemojicomplete.h
+* @brief Header file for LLPanelEmojiComplete
+*
+* $LicenseInfo:firstyear=2014&license=viewerlgpl$
+* Second Life Viewer Source Code
+* Copyright (C) 2014, 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
+* $/LicenseInfo$
+*/
+
+#pragma once
+
+#include "llemojidictionary.h"
+#include "llfloater.h"
+#include "lluictrl.h"
+
+class LLScrollbar;
+
+// ============================================================================
+// LLPanelEmojiComplete
+//
+
+class LLPanelEmojiComplete : public LLUICtrl
+{
+    friend class LLUICtrlFactory;
+public:
+    struct Params : public LLInitParam::Block<Params, LLUICtrl::Params>
+    {
+        Optional<bool>       autosize;
+        Optional<bool>       noscroll;
+        Optional<bool>       vertical;
+        Optional<S32>        max_visible,
+                             padding;
+
+        Optional<LLUIImage*> selected_image;
+
+        Params();
+    };
+
+protected:
+    LLPanelEmojiComplete(const LLPanelEmojiComplete::Params&);
+
+public:
+    virtual ~LLPanelEmojiComplete();
+
+    void draw() override;
+    bool handleHover(S32 x, S32 y, MASK mask) override;
+    bool handleKey(KEY key, MASK mask, bool called_from_parent) override;
+    bool handleMouseDown(S32 x, S32 y, MASK mask) override;
+    bool handleMouseUp(S32 x, S32 y, MASK mask) override;
+    bool handleScrollWheel(S32 x, S32 y, S32 clicks) override;
+    void onCommit() override;
+    void reshape(S32 width, S32 height, bool called_from_parent) override;
+
+public:
+    size_t getEmojiCount() const { return mEmojis.size(); }
+    void setEmojis(const LLWString& emojis);
+    void setEmojiHint(const std::string& hint);
+    bool isAutoSize() const { return mAutoSize; }
+    U32 getMaxShortCodeWidth() const;
+
+protected:
+    void onEmojisChanged();
+    void onScrollbarChange(S32 index);
+    size_t posToIndex(S32 x, S32 y) const;
+    void select(size_t emoji_idx);
+    void selectNext();
+    void selectPrevious();
+    void updateConstraints();
+    void updateScrollPos();
+
+protected:
+    const bool      mAutoSize;
+    const bool      mNoScroll;
+    const bool      mVertical;
+    const size_t    mMaxVisible;
+    const S32       mPadding;
+    const LLUIImagePtr mSelectedImage;
+    const LLFontGL* mIconFont;
+    const LLFontGL* mTextFont;
+
+    std::vector<LLEmojiSearchResult> mEmojis;
+    LLScrollbar*    mScrollbar;
+    LLRect          mRenderRect;
+    U16             mEmojiWidth = 0;
+    U16             mEmojiHeight = 0;
+    size_t          mTotalEmojis = 0;
+    size_t          mVisibleEmojis = 0;
+    size_t          mFirstVisible = 0;
+    size_t          mScrollPos = 0;
+    size_t          mCurSelected = 0;
+    LLVector2       mLastHover;
+};
+
+// ============================================================================
+// LLFloaterEmojiComplete
+//
+
+class LLFloaterEmojiComplete : public LLFloater
+{
+public:
+    LLFloaterEmojiComplete(const LLSD& sdKey);
+
+public:
+    bool handleKey(KEY key, MASK mask, bool called_from_parent) override;
+    void onOpen(const LLSD& key) override;
+    bool postBuild() override;
+    void reshape(S32 width, S32 height, bool called_from_parent) override;
+
+protected:
+    LLPanelEmojiComplete* mEmojiCtrl = nullptr;
+    S32 mEmojiCtrlHorz = 0;
+    S32 mEmojiCtrlVert = 0;
+};
+
+// ============================================================================