Merge remote-tracking branch 'origin/main' into release/gltf-maint2

100 files changed, 3806 insertions, 713 deletions

diff --git a/indra/newview/CMakeLists.txt b/indra/newview/CMakeLists.txt
index 7a70d0b6e6..355f35c558 100644
--- a/indra/newview/CMakeLists.txt
+++ b/indra/newview/CMakeLists.txt
@@ -18,6 +18,7 @@ include(DragDrop)
 include(EXPAT)
 include(FMODSTUDIO)
 include(Hunspell)
+include(ICU4C)
 include(JPEGEncoderBasic)
 include(JsonCpp)
 include(LLAppearance)
@@ -207,6 +208,7 @@ set(viewer_SOURCE_FILES
     llfloaterdisplayname.cpp
     llfloatereditenvironmentbase.cpp
     llfloatereditextdaycycle.cpp
+    llfloateremojipicker.cpp
     llfloaterenvironmentadjust.cpp
     llfloaterevent.cpp
     llfloaterexperiencepicker.cpp
@@ -418,6 +420,7 @@ set(viewer_SOURCE_FILES
     llpaneleditsky.cpp
     llpaneleditwater.cpp
     llpaneleditwearable.cpp
+    llpanelemojicomplete.cpp
     llpanelenvironment.cpp
     llpanelexperiencelisteditor.cpp
     llpanelexperiencelog.cpp
@@ -858,6 +861,7 @@ set(viewer_HEADER_FILES
     llfloaterdisplayname.h
     llfloatereditenvironmentbase.h
     llfloatereditextdaycycle.h
+    llfloateremojipicker.h
     llfloaterenvironmentadjust.h
     llfloaterevent.h
     llfloaterexperiencepicker.h
@@ -1061,6 +1065,7 @@ set(viewer_HEADER_FILES
     llpaneleditsky.h
     llpaneleditwater.h
     llpaneleditwearable.h
+    llpanelemojicomplete.h
     llpanelenvironment.h
     llpanelexperiencelisteditor.h
     llpanelexperiencelog.h
@@ -1927,6 +1932,7 @@ target_link_libraries(${VIEWER_BINARY_NAME}
         ${LLPHYSICSEXTENSIONS_LIBRARIES}
         ll::bugsplat
         ll::tracy
+        ll::icu4c
         )
 
 if( TARGET ll::intel_memops )
@@ -1940,6 +1946,28 @@ endif()
 set(ARTWORK_DIR ${CMAKE_CURRENT_SOURCE_DIR} CACHE PATH
     "Path to artwork files.")
 
+message("Copying fonts")
+file(GLOB FONT_FILE_GLOB_LIST
+  "${AUTOBUILD_INSTALL_DIR}/fonts/*"
+)
+file(COPY ${FONT_FILE_GLOB_LIST} DESTINATION "${CMAKE_CURRENT_SOURCE_DIR}/fonts")
+
+# Copy over the Emoji/shortcodes mapping XML files (and create dependency
+# if they are changed, CMake will run again and copy over new versions)
+message("Copying Emoji/shortcode mappings")
+set(emoji_mapping_src_folder ${AUTOBUILD_INSTALL_DIR}/xui)
+set(emoji_mapping_dst_folder ${CMAKE_CURRENT_SOURCE_DIR}/skins/default/xui)
+
+# Note Turkey is missing from this set (not available in Emoji package yet)
+set(country_codes "da;de;en;es;fr;it;ja;pl;pt;ru;zh")
+foreach(elem ${country_codes})
+   set(emoji_mapping_src_file
+      "${emoji_mapping_src_folder}/${elem}/emoji_characters.xml")
+   set(emoji_mapping_dst_file
+      "${emoji_mapping_dst_folder}/${elem}/emoji_characters.xml")      
+   configure_file(${emoji_mapping_src_file} ${emoji_mapping_dst_file} COPYONLY)
+endforeach()
+
 if (LINUX)
   set(product SecondLife-${ARCH}-${VIEWER_SHORT_VERSION}.${VIEWER_VERSION_REVISION})
 
diff --git a/indra/newview/VIEWER_VERSION.txt b/indra/newview/VIEWER_VERSION.txt
index 1996c50447..b7f8ee41e6 100644
--- a/indra/newview/VIEWER_VERSION.txt
+++ b/indra/newview/VIEWER_VERSION.txt
@@ -1 +1 @@
-7.1.3
+7.1.4
diff --git a/indra/newview/app_settings/emoji_groups.xml b/indra/newview/app_settings/emoji_groups.xml
new file mode 100644
index 0000000000..b433927f91
--- /dev/null
+++ b/indra/newview/app_settings/emoji_groups.xml
@@ -0,0 +1,82 @@
+<?xml version="1.0" ?>
+<llsd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="llsd.xsd">
+  <array>
+    <map>
+      <key>Name</key>
+      <string>all</string>
+      <key>Character</key>
+      <string>🔍</string>
+    </map>
+    <map>
+      <key>Character</key>
+      <string>😀</string>
+      <key>Categories</key>
+      <array>
+        <string>smileys and emotion</string>
+        <string>people and body</string>
+      </array>
+    </map>
+    <map>
+      <key>Character</key>
+      <string>🥬</string>
+      <key>Categories</key>
+      <array>
+        <string>animals and nature</string>
+      </array>
+    </map>
+    <map>
+      <key>Character</key>
+      <string>🍔</string>
+      <key>Categories</key>
+      <array>
+        <string>food and drink</string>
+      </array>
+    </map>
+    <map>
+      <key>Character</key>
+      <string>🛩</string>
+      <key>Categories</key>
+      <array>
+        <string>travel and places</string>
+      </array>
+    </map>
+    <map>
+      <key>Character</key>
+      <string>🏈</string>
+      <key>Categories</key>
+      <array>
+        <string>activities</string>
+      </array>
+    </map>
+    <map>
+      <key>Character</key>
+      <string>💡</string>
+      <key>Categories</key>
+      <array>
+        <string>objects</string>
+      </array>
+    </map>
+    <map>
+      <key>Character</key>
+      <string>⚠</string>
+      <key>Categories</key>
+      <array>
+        <string>symbols</string>
+      </array>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>others</string>
+      <key>Character</key>
+      <string>🌂</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>skip</string>
+      <key>Categories</key>
+      <array>
+        <string>components</string>
+      </array>
+    </map>
+  </array>
+</llsd>
diff --git a/indra/newview/app_settings/settings.xml b/indra/newview/app_settings/settings.xml
index 3d43a20c21..9b9b29cd74 100644
--- a/indra/newview/app_settings/settings.xml
+++ b/indra/newview/app_settings/settings.xml
@@ -11211,7 +11211,7 @@
 			<key>Type</key>
 			<string>String</string>
 			<key>Value</key>
-			<string>https://jira.secondlife.com/secure/CreateIssueDetails!init.jspa?pid=10610&amp;issuetype=1&amp;environment=[ENVIRONMENT]&amp;customfield_10253=[LOCATION]</string>
+			<string>https://feedback.secondlife.com/</string>
 		</map>
 	<key>RevokePermsOnStopAnimation</key>
     <map>
diff --git a/indra/newview/fonts/DejaVu-license.txt b/indra/newview/fonts/DejaVu-license.txt
deleted file mode 100644
index df52c1709b..0000000000
--- a/indra/newview/fonts/DejaVu-license.txt
+++ /dev/null
@@ -1,187 +0,0 @@
-Fonts are (c) Bitstream (see below). DejaVu changes are in public domain.
-Glyphs imported from Arev fonts are (c) Tavmjong Bah (see below)
-
-
-Bitstream Vera Fonts Copyright
-------------------------------
-
-Copyright (c) 2003 by Bitstream, Inc. All Rights Reserved. Bitstream Vera is
-a trademark of Bitstream, Inc.
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of the fonts accompanying this license ("Fonts") and associated
-documentation files (the "Font Software"), to reproduce and distribute the
-Font Software, including without limitation the rights to use, copy, merge,
-publish, distribute, and/or sell copies of the Font Software, and to permit
-persons to whom the Font Software is furnished to do so, subject to the
-following conditions:
-
-The above copyright and trademark notices and this permission notice shall
-be included in all copies of one or more of the Font Software typefaces.
-
-The Font Software may be modified, altered, or added to, and in particular
-the designs of glyphs or characters in the Fonts may be modified and
-additional glyphs or characters may be added to the Fonts, only if the fonts
-are renamed to names not containing either the words "Bitstream" or the word
-"Vera".
-
-This License becomes null and void to the extent applicable to Fonts or Font
-Software that has been modified and is distributed under the "Bitstream
-Vera" names.
-
-The Font Software may be sold as part of a larger software package but no
-copy of one or more of the Font Software typefaces may be sold by itself.
-
-THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
-TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL BITSTREAM OR THE GNOME
-FOUNDATION BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING
-ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
-WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
-THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM OTHER DEALINGS IN THE
-FONT SOFTWARE.
-
-Except as contained in this notice, the names of Gnome, the Gnome
-Foundation, and Bitstream Inc., shall not be used in advertising or
-otherwise to promote the sale, use or other dealings in this Font Software
-without prior written authorization from the Gnome Foundation or Bitstream
-Inc., respectively. For further information, contact: fonts at gnome dot
-org.
-
-Arev Fonts Copyright
-------------------------------
-
-Copyright (c) 2006 by Tavmjong Bah. All Rights Reserved.
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of the fonts accompanying this license ("Fonts") and
-associated documentation files (the "Font Software"), to reproduce
-and distribute the modifications to the Bitstream Vera Font Software,
-including without limitation the rights to use, copy, merge, publish,
-distribute, and/or sell copies of the Font Software, and to permit
-persons to whom the Font Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright and trademark notices and this permission notice
-shall be included in all copies of one or more of the Font Software
-typefaces.
-
-The Font Software may be modified, altered, or added to, and in
-particular the designs of glyphs or characters in the Fonts may be
-modified and additional glyphs or characters may be added to the
-Fonts, only if the fonts are renamed to names not containing either
-the words "Tavmjong Bah" or the word "Arev".
-
-This License becomes null and void to the extent applicable to Fonts
-or Font Software that has been modified and is distributed under the 
-"Tavmjong Bah Arev" names.
-
-The Font Software may be sold as part of a larger software package but
-no copy of one or more of the Font Software typefaces may be sold by
-itself.
-
-THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
-OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL
-TAVMJONG BAH BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
-INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
-DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
-OTHER DEALINGS IN THE FONT SOFTWARE.
-
-Except as contained in this notice, the name of Tavmjong Bah shall not
-be used in advertising or otherwise to promote the sale, use or other
-dealings in this Font Software without prior written authorization
-from Tavmjong Bah. For further information, contact: tavmjong @ free
-. fr.
-
-TeX Gyre DJV Math
------------------
-Fonts are (c) Bitstream (see below). DejaVu changes are in public domain.
-
-Math extensions done by B. Jackowski, P. Strzelczyk and P. Pianowski
-(on behalf of TeX users groups) are in public domain.
-
-Letters imported from Euler Fraktur from AMSfonts are (c) American
-Mathematical Society (see below).
-Bitstream Vera Fonts Copyright
-Copyright (c) 2003 by Bitstream, Inc. All Rights Reserved. Bitstream Vera
-is a trademark of Bitstream, Inc.
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of the fonts accompanying this license (“Fonts”) and associated
-documentation
-files (the “Font Software”), to reproduce and distribute the Font Software,
-including without limitation the rights to use, copy, merge, publish,
-distribute,
-and/or sell copies of the Font Software, and to permit persons  to whom
-the Font Software is furnished to do so, subject to the following
-conditions:
-
-The above copyright and trademark notices and this permission notice
-shall be
-included in all copies of one or more of the Font Software typefaces.
-
-The Font Software may be modified, altered, or added to, and in particular
-the designs of glyphs or characters in the Fonts may be modified and
-additional
-glyphs or characters may be added to the Fonts, only if the fonts are
-renamed
-to names not containing either the words “Bitstream” or the word “Vera”.
-
-This License becomes null and void to the extent applicable to Fonts or
-Font Software
-that has been modified and is distributed under the “Bitstream Vera”
-names.
-
-The Font Software may be sold as part of a larger software package but
-no copy
-of one or more of the Font Software typefaces may be sold by itself.
-
-THE FONT SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
-TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL BITSTREAM OR THE GNOME
-FOUNDATION
-BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL,
-SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN
-ACTION
-OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR
-INABILITY TO USE
-THE FONT SOFTWARE OR FROM OTHER DEALINGS IN THE FONT SOFTWARE.
-Except as contained in this notice, the names of GNOME, the GNOME
-Foundation,
-and Bitstream Inc., shall not be used in advertising or otherwise to promote
-the sale, use or other dealings in this Font Software without prior written
-authorization from the GNOME Foundation or Bitstream Inc., respectively.
-For further information, contact: fonts at gnome dot org.
-
-AMSFonts (v. 2.2) copyright
-
-The PostScript Type 1 implementation of the AMSFonts produced by and
-previously distributed by Blue Sky Research and Y&Y, Inc. are now freely
-available for general use. This has been accomplished through the
-cooperation
-of a consortium of scientific publishers with Blue Sky Research and Y&Y.
-Members of this consortium include:
-
-Elsevier Science IBM Corporation Society for Industrial and Applied
-Mathematics (SIAM) Springer-Verlag American Mathematical Society (AMS)
-
-In order to assure the authenticity of these fonts, copyright will be
-held by
-the American Mathematical Society. This is not meant to restrict in any way
-the legitimate use of the fonts, such as (but not limited to) electronic
-distribution of documents containing these fonts, inclusion of these fonts
-into other public domain or commercial font collections or computer
-applications, use of the outline data to create derivative fonts and/or
-faces, etc. However, the AMS does require that the AMS copyright notice be
-removed from any derivative versions of the fonts which have been altered in
-any way. In addition, to ensure the fidelity of TeX documents using Computer
-Modern fonts, Professor Donald Knuth, creator of the Computer Modern faces,
-has requested that any alterations which yield different font metrics be
-given a different name.
-
-$Id$
diff --git a/indra/newview/fonts/DejaVuSans-Bold.ttf b/indra/newview/fonts/DejaVuSans-Bold.ttf
deleted file mode 100644
index 6d65fa7dc4..0000000000
--- a/indra/newview/fonts/DejaVuSans-Bold.ttf
+++ /dev/null
diff --git a/indra/newview/fonts/DejaVuSans-BoldOblique.ttf b/indra/newview/fonts/DejaVuSans-BoldOblique.ttf
deleted file mode 100644
index 753f2d80b1..0000000000
--- a/indra/newview/fonts/DejaVuSans-BoldOblique.ttf
+++ /dev/null
diff --git a/indra/newview/fonts/DejaVuSans-Oblique.ttf b/indra/newview/fonts/DejaVuSans-Oblique.ttf
deleted file mode 100644
index 999bac7714..0000000000
--- a/indra/newview/fonts/DejaVuSans-Oblique.ttf
+++ /dev/null
diff --git a/indra/newview/fonts/DejaVuSans.ttf b/indra/newview/fonts/DejaVuSans.ttf
deleted file mode 100644
index e5f7eecce4..0000000000
--- a/indra/newview/fonts/DejaVuSans.ttf
+++ /dev/null
diff --git a/indra/newview/fonts/DejaVuSansMono.ttf b/indra/newview/fonts/DejaVuSansMono.ttf
deleted file mode 100644
index f5786022f1..0000000000
--- a/indra/newview/fonts/DejaVuSansMono.ttf
+++ /dev/null
diff --git a/indra/newview/llautoreplace.h b/indra/newview/llautoreplace.h
index 23cc313646..a1eebf9dcb 100644
--- a/indra/newview/llautoreplace.h
+++ b/indra/newview/llautoreplace.h
@@ -203,7 +203,7 @@ public:
     void setSettings(const LLAutoReplaceSettings& settings);
 
 private:
-    /*virtual*/ void initSingleton();
+    /*virtual*/ void initSingleton() override;
 
     LLAutoReplaceSettings mSettings; ///< configuration information
 	
diff --git a/indra/newview/llchannelmanager.h b/indra/newview/llchannelmanager.h
index 8abe350196..22ae595d66 100644
--- a/indra/newview/llchannelmanager.h
+++ b/indra/newview/llchannelmanager.h
@@ -46,7 +46,7 @@ class LLChannelManager : public LLSingleton<LLChannelManager>
 	LLSINGLETON(LLChannelManager);
 	virtual ~LLChannelManager();
 
-	void cleanupSingleton();
+	void cleanupSingleton() override;
 public:
 
 
diff --git a/indra/newview/llchathistory.cpp b/indra/newview/llchathistory.cpp
index 43dc10ef5f..b9bf432581 100644
--- a/indra/newview/llchathistory.cpp
+++ b/indra/newview/llchathistory.cpp
@@ -1096,6 +1096,8 @@ LLChatHistory::LLChatHistory(const LLChatHistory::Params& p)
 	editor_params.enabled = false; // read only
 	editor_params.show_context_menu = "true";
 	editor_params.trusted_content = false;
+	editor_params.text_valign = LLFontGL::VAlign::VCENTER;
+	editor_params.use_color = true;
 	mEditor = LLUICtrlFactory::create<LLTextEditor>(editor_params, this);
 	mEditor->setIsFriendCallback(LLAvatarActions::isFriend);
 	mEditor->setIsObjectBlockedCallback(boost::bind(&LLMuteList::isMuted, LLMuteList::getInstance(), _1, _2, 0));
@@ -1213,9 +1215,7 @@ void LLChatHistory::appendMessage(const LLChat& chat, const LLSD &args, const LL
 
 	llassert(mEditor);
 	if (!mEditor)
-	{
 		return;
-	}
 
 	bool from_me = chat.mFromID == gAgent.getID();
 	mEditor->setPlainText(use_plain_text_chat_history);
@@ -1225,26 +1225,16 @@ void LLChatHistory::appendMessage(const LLChat& chat, const LLSD &args, const LL
 		mUnreadChatSources.insert(chat.mFromName);
 		mMoreChatPanel->setVisible(TRUE);
 		std::string chatters;
-		for (unread_chat_source_t::iterator it = mUnreadChatSources.begin();
-			it != mUnreadChatSources.end();)
+		for (const std::string& source : mUnreadChatSources)
 		{
-			chatters += *it;
-			if (++it != mUnreadChatSources.end())
-			{
-				chatters += ", ";
-			}
+			chatters += chatters.size() ? ", " + source : source;
 		}
 		LLStringUtil::format_map_t args;
 		args["SOURCES"] = chatters;
 
-		if (mUnreadChatSources.size() == 1)
-		{
-			mMoreChatText->setValue(LLTrans::getString("unread_chat_single", args));
-		}
-		else
-		{
-			mMoreChatText->setValue(LLTrans::getString("unread_chat_multiple", args));
-		}
+		std::string xml_desc = mUnreadChatSources.size() == 1 ?
+			"unread_chat_single" : "unread_chat_multiple";
+		mMoreChatText->setValue(LLTrans::getString(xml_desc, args));
 		S32 height = mMoreChatText->getTextPixelHeight() + 5;
 		mMoreChatPanel->reshape(mMoreChatPanel->getRect().getWidth(), height);
 	}
@@ -1292,11 +1282,11 @@ void LLChatHistory::appendMessage(const LLChat& chat, const LLSD &args, const LL
 		body_message_params.font.style = "ITALIC";
 	}
 
-	if(chat.mChatType == CHAT_TYPE_WHISPER)
+	if (chat.mChatType == CHAT_TYPE_WHISPER)
 	{
 		body_message_params.font.style = "ITALIC";
 	}
-	else if(chat.mChatType == CHAT_TYPE_SHOUT)
+	else if (chat.mChatType == CHAT_TYPE_SHOUT)
 	{
 		body_message_params.font.style = "BOLD";
 	}
@@ -1343,10 +1333,10 @@ void LLChatHistory::appendMessage(const LLChat& chat, const LLSD &args, const LL
 		}
 
 		// names showing
-		if (args["show_names_for_p2p_conv"].asBoolean() && utf8str_trim(chat.mFromName).size() != 0)
+		if (args["show_names_for_p2p_conv"].asBoolean() && utf8str_trim(chat.mFromName).size())
 		{
 			// Don't hotlink any messages from the system (e.g. "Second Life:"), so just add those in plain text.
-			if ( chat.mSourceType == CHAT_SOURCE_OBJECT && chat.mFromID.notNull())
+			if (chat.mSourceType == CHAT_SOURCE_OBJECT && chat.mFromID.notNull())
 			{
 				// for object IMs, create a secondlife:///app/objectim SLapp
 				std::string url = LLViewerChat::getSenderSLURL(chat, args);
@@ -1406,36 +1396,27 @@ void LLChatHistory::appendMessage(const LLChat& chat, const LLSD &args, const LL
 			&& mIsLastMessageFromLog == message_from_log)  //distinguish between current and previous chat session's histories
 		{
 			view = getSeparator();
-			p.top_pad = mTopSeparatorPad;
-			p.bottom_pad = mBottomSeparatorPad;
             if (!view)
             {
                 // Might be wiser to make this LL_ERRS, getSeparator() should work in case of correct instalation.
                 LL_WARNS() << "Failed to create separator from " << mMessageSeparatorFilename << ": can't append to history" << LL_ENDL;
                 return;
             }
+
+			p.top_pad = mTopSeparatorPad;
+			p.bottom_pad = mBottomSeparatorPad;
 		}
 		else
 		{
 			view = getHeader(chat, name_params, args);
-			if (mEditor->getLength() == 0)
-				p.top_pad = 0;
-			else
-				p.top_pad = mTopHeaderPad;
-            if (teleport_separator)
-            {
-                p.bottom_pad = mBottomSeparatorPad;
-            }
-            else
-            {
-                p.bottom_pad = mBottomHeaderPad;
-            }
-            if (!view)
-            {
-                LL_WARNS() << "Failed to create header from " << mMessageHeaderFilename << ": can't append to history" << LL_ENDL;
-                return;
-            }
+			if (!view)
+			{
+				LL_WARNS() << "Failed to create header from " << mMessageHeaderFilename << ": can't append to history" << LL_ENDL;
+				return;
+			}
 			
+			p.top_pad = mEditor->getLength() ? mTopHeaderPad : 0;
+			p.bottom_pad = teleport_separator ? mBottomSeparatorPad : mBottomHeaderPad;
 		}
 		p.view = view;
 
@@ -1508,11 +1489,10 @@ void LLChatHistory::appendMessage(const LLChat& chat, const LLSD &args, const LL
 		}
 	}
 	// usual messages showing
-	else if(!teleport_separator)
+	else if (!teleport_separator)
 	{
 		std::string message = irc_me ? chat.mText.substr(3) : chat.mText;
 
-
 		//MESSAGE TEXT PROCESSING
 		//*HACK getting rid of redundant sender names in system notifications sent using sender name (see EXT-5010)
 		if (use_plain_text_chat_history && !from_me && chat.mFromID.notNull())
diff --git a/indra/newview/llchicletbar.h b/indra/newview/llchicletbar.h
index 6c521dc1d5..c295b99962 100644
--- a/indra/newview/llchicletbar.h
+++ b/indra/newview/llchicletbar.h
@@ -43,11 +43,11 @@ class LLChicletBar
 
 public:
 
-	BOOL postBuild();
+	BOOL postBuild() override;
 
 	LLChicletPanel*	getChicletPanel() { return mChicletPanel; }
 
-	/*virtual*/ void reshape(S32 width, S32 height, BOOL called_from_parent);
+	/*virtual*/ void reshape(S32 width, S32 height, BOOL called_from_parent) override;
 
 
 	/**
diff --git a/indra/newview/llconversationlog.h b/indra/newview/llconversationlog.h
index 820a5db491..54aeedcf9a 100644
--- a/indra/newview/llconversationlog.h
+++ b/indra/newview/llconversationlog.h
@@ -125,11 +125,11 @@ public:
 	void removeObserver(LLConversationLogObserver* observer);
 
 	// LLIMSessionObserver triggers
-	virtual void sessionAdded(const LLUUID& session_id, const std::string& name, const LLUUID& other_participant_id, BOOL has_offline_msg);
-    virtual void sessionActivated(const LLUUID& session_id, const std::string& name, const LLUUID& other_participant_id) {}; // Stub
-	virtual void sessionRemoved(const LLUUID& session_id){}											// Stub
-	virtual void sessionVoiceOrIMStarted(const LLUUID& session_id){};								// Stub
-	virtual void sessionIDUpdated(const LLUUID& old_session_id, const LLUUID& new_session_id){};	// Stub
+	virtual void sessionAdded(const LLUUID& session_id, const std::string& name, const LLUUID& other_participant_id, BOOL has_offline_msg) override;
+    virtual void sessionActivated(const LLUUID& session_id, const std::string& name, const LLUUID& other_participant_id) override {}; // Stub
+	virtual void sessionRemoved(const LLUUID& session_id) override{}											// Stub
+	virtual void sessionVoiceOrIMStarted(const LLUUID& session_id) override{};								// Stub
+	virtual void sessionIDUpdated(const LLUUID& old_session_id, const LLUUID& new_session_id) override{};	// Stub
 
 	void notifyObservers();
 
diff --git a/indra/newview/llexpandabletextbox.cpp b/indra/newview/llexpandabletextbox.cpp
index 3395777aab..2d332f75f5 100644
--- a/indra/newview/llexpandabletextbox.cpp
+++ b/indra/newview/llexpandabletextbox.cpp
@@ -88,7 +88,7 @@ public:
 									mStyle->getShadowType(), 
 									end - start, draw_rect.getWidth(), 
 									&right_x, 
-									mEditor.getUseEllipses());
+									mEditor.getUseEllipses(), mEditor.getUseColor());
 		return right_x;
 	}
 	/*virtual*/ bool	canEdit() const { return false; }
diff --git a/indra/newview/llfeaturemanager.h b/indra/newview/llfeaturemanager.h
index 651404d890..70c6c09e0d 100644
--- a/indra/newview/llfeaturemanager.h
+++ b/indra/newview/llfeaturemanager.h
@@ -101,7 +101,7 @@ class LLFeatureManager : public LLFeatureList, public LLSingleton<LLFeatureManag
 	~LLFeatureManager() {cleanupFeatureTables();}
 
 	// initialize this by loading feature table and gpu table
-	void initSingleton();
+	void initSingleton() override;
 
 public:
 
diff --git a/indra/newview/llfloateravatarpicker.cpp b/indra/newview/llfloateravatarpicker.cpp
index 2422596f60..42ef41017a 100644
--- a/indra/newview/llfloateravatarpicker.cpp
+++ b/indra/newview/llfloateravatarpicker.cpp
@@ -741,7 +741,6 @@ void LLFloaterAvatarPicker::processResponse(const LLUUID& query_id, const LLSD&
 	}
 }
 
-//static
 void LLFloaterAvatarPicker::editKeystroke(LLLineEditor* caller, void* user_data)
 {
 	getChildView("Find")->setEnabled(caller->getText().size() > 0);
diff --git a/indra/newview/llfloateremojipicker.cpp b/indra/newview/llfloateremojipicker.cpp
new file mode 100644
index 0000000000..1578caa39c
--- /dev/null
+++ b/indra/newview/llfloateremojipicker.cpp
@@ -0,0 +1,1346 @@
+/**
+ * @file llfloateremojipicker.cpp
+ *
+ * $LicenseInfo:firstyear=2003&license=viewerlgpl$
+ * 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
+ * $/LicenseInfo$
+ */
+
+#include "llviewerprecompiledheaders.h"
+
+#include "llfloateremojipicker.h"
+
+#include "llappviewer.h"
+#include "llbutton.h"
+#include "llcombobox.h"
+#include "llemojidictionary.h"
+#include "llemojihelper.h"
+#include "llfloaterreg.h"
+#include "llkeyboard.h"
+#include "llscrollcontainer.h"
+#include "llscrollingpanellist.h"
+#include "llscrolllistctrl.h"
+#include "llscrolllistitem.h"
+#include "llsdserialize.h"
+#include "lltextbox.h" 
+#include "llviewerchat.h" 
+
+namespace {
+// The following variables and constants are used for storing the floater state
+// between different lifecycles of the floater and different sissions of the viewer
+
+// Floater constants
+static const S32 ALL_EMOJIS_GROUP_INDEX = -2;
+// https://www.compart.com/en/unicode/U+1F50D
+static const S32 ALL_EMOJIS_IMAGE_INDEX = 0x1F50D;
+static const S32 USED_EMOJIS_GROUP_INDEX = -1;
+// https://www.compart.com/en/unicode/U+23F2
+static const S32 USED_EMOJIS_IMAGE_INDEX = 0x23F2;
+// https://www.compart.com/en/unicode/U+1F6D1
+static const S32 EMPTY_LIST_IMAGE_INDEX = 0x1F6D1;
+// The following categories should follow the required alphabetic order
+static const std::string RECENTLY_USED_CATEGORY = "1 recently used";
+static const std::string FREQUENTLY_USED_CATEGORY = "2 frequently used";
+
+// Floater state related variables
+static std::list<llwchar> sRecentlyUsed;
+static std::list<std::pair<llwchar, U32>> sFrequentlyUsed;
+
+// State file related values
+static std::string sStateFileName;
+static const std::string sKeyRecentlyUsed("RecentlyUsed");
+static const std::string sKeyFrequentlyUsed("FrequentlyUsed");
+}
+
+class LLEmojiGridRow : public LLScrollingPanel
+{
+public:
+    LLEmojiGridRow(const LLPanel::Params& panel_params,
+        const LLScrollingPanelList::Params& list_params)
+        : LLScrollingPanel(panel_params)
+        , mList(new LLScrollingPanelList(list_params))
+    {
+        addChild(mList);
+    }
+
+    virtual void updatePanel(BOOL allow_modify) override {}
+
+public:
+    LLScrollingPanelList* mList;
+};
+
+class LLEmojiGridDivider : public LLScrollingPanel
+{
+public:
+    LLEmojiGridDivider(const LLPanel::Params& panel_params, std::string text)
+        : LLScrollingPanel(panel_params)
+        , mText(utf8string_to_wstring(text))
+    {
+    }
+
+    virtual void draw() override
+    {
+        LLScrollingPanel::draw();
+
+        F32 x = 4; // padding-left
+        F32 y = getRect().getHeight() / 2;
+        LLFontGL::getFontSansSerif()->render(
+            mText,                      // wstr
+            0,                          // begin_offset
+            x,                          // x
+            y,                          // y
+            LLColor4::white,            // color
+            LLFontGL::LEFT,             // halign
+            LLFontGL::VCENTER,          // valign
+            LLFontGL::NORMAL,           // style
+            LLFontGL::DROP_SHADOW_SOFT, // shadow
+            mText.size());              // max_chars
+    }
+
+    virtual void updatePanel(BOOL allow_modify) override {}
+
+private:
+    const LLWString mText;
+};
+
+class LLEmojiGridIcon : public LLScrollingPanel
+{
+public:
+    LLEmojiGridIcon(
+        const LLPanel::Params& panel_params
+        , const LLEmojiSearchResult& emoji)
+        : LLScrollingPanel(panel_params)
+        , mData(emoji)
+        , mText(LLWString(1, emoji.Character))
+    {
+    }
+
+    virtual void draw() override
+    {
+        LLScrollingPanel::draw();
+
+        F32 x = getRect().getWidth() / 2;
+        F32 y = getRect().getHeight() / 2;
+        LLFontGL::getFontEmoji()->render(
+            mText,                      // wstr
+            0,                          // begin_offset
+            x,                          // x
+            y,                          // y
+            LLColor4::white,            // color
+            LLFontGL::HCENTER,          // halign
+            LLFontGL::VCENTER,          // valign
+            LLFontGL::NORMAL,           // style
+            LLFontGL::DROP_SHADOW_SOFT, // shadow
+            1);                         // max_chars
+    }
+
+    virtual void updatePanel(BOOL allow_modify) override {}
+
+    const LLEmojiSearchResult& getData() const { return mData; }
+    LLWString getText() const { return mText; }
+
+private:
+    const LLEmojiSearchResult mData;
+    const LLWString mText;
+};
+
+class LLEmojiPreviewPanel : public LLPanel
+{
+public:
+    LLEmojiPreviewPanel()
+        : LLPanel()
+    {
+    }
+
+    void setIcon(const LLEmojiGridIcon* icon)
+    {
+        if (icon)
+        {
+            setData(icon->getData().Character, icon->getData().String, icon->getData().Begin, icon->getData().End);
+        }
+        else
+        {
+            setData(0, LLStringUtil::null, 0, 0);
+        }
+    }
+
+    void setData(llwchar emoji, std::string title, size_t begin, size_t end)
+    {
+        mWStr = LLWString(1, emoji);
+        mEmoji = emoji;
+        mTitle = title;
+        mBegin = begin;
+        mEnd = end;
+    }
+
+    virtual void draw() override
+    {
+        LLPanel::draw();
+
+        S32 clientHeight = getRect().getHeight();
+        S32 clientWidth = getRect().getWidth();
+        S32 iconWidth = clientHeight;
+
+        F32 centerX = 0.5f * iconWidth;
+        F32 centerY = 0.5f * clientHeight;
+        drawIcon(centerX, centerY - 1, iconWidth);
+
+        static LLColor4 defaultColor(0.75f, 0.75f, 0.75f, 1.0f);
+        LLColor4 textColor = LLUIColorTable::instance().getColor("MenuItemEnabledColor", defaultColor);
+        S32 max_pixels = clientWidth - iconWidth;
+        drawName(iconWidth, centerY, max_pixels, textColor);
+    }
+
+protected:
+    void drawIcon(F32 x, F32 y, S32 max_pixels)
+    {
+        LLFontGL::getFontEmojiHuge()->render(
+            mWStr,                      // wstr
+            0,                          // begin_offset
+            x,                          // x
+            y,                          // y
+            LLColor4::white,            // color
+            LLFontGL::HCENTER,          // halign
+            LLFontGL::VCENTER,          // valign
+            LLFontGL::NORMAL,           // style
+            LLFontGL::DROP_SHADOW_SOFT, // shadow
+            1,                          // max_chars
+            max_pixels);                // max_pixels
+    }
+
+    void drawName(F32 x, F32 y, S32 max_pixels, LLColor4& color)
+    {
+        F32 x0 = x;
+        F32 x1 = max_pixels;
+        LLFontGL* font = LLFontGL::getFontEmoji();
+        if (mBegin)
+        {
+            std::string text = mTitle.substr(0, mBegin);
+            font->renderUTF8(
+                text,                       // text
+                0,                          // begin_offset
+                x0,                         // x
+                y,                          // y
+                color,                      // color
+                LLFontGL::LEFT,             // halign
+                LLFontGL::VCENTER,          // valign
+                LLFontGL::NORMAL,           // style
+                LLFontGL::DROP_SHADOW_SOFT, // shadow
+                text.size(),                // max_chars
+                x1);                        // max_pixels
+            F32 dx = font->getWidthF32(text);
+            x0 += dx;
+            x1 -= dx;
+        }
+        if (x1 > 0 && mEnd > mBegin)
+        {
+            std::string text = mTitle.substr(mBegin, mEnd - mBegin);
+            font->renderUTF8(
+                text,                       // text
+                0,                          // begin_offset
+                x0,                         // x
+                y,                          // y
+                LLColor4::yellow6,          // color
+                LLFontGL::LEFT,             // halign
+                LLFontGL::VCENTER,          // valign
+                LLFontGL::NORMAL,           // style
+                LLFontGL::DROP_SHADOW_SOFT, // shadow
+                text.size(),                // max_chars
+                x1);                        // max_pixels
+            F32 dx = font->getWidthF32(text);
+            x0 += dx;
+            x1 -= dx;
+        }
+        if (x1 > 0 && mEnd < mTitle.size())
+        {
+            std::string text = mEnd ? mTitle.substr(mEnd) : mTitle;
+            font->renderUTF8(
+                text,                       // text
+                0,                          // begin_offset
+                x0,                         // x
+                y,                          // y
+                color,                      // color
+                LLFontGL::LEFT,             // halign
+                LLFontGL::VCENTER,          // valign
+                LLFontGL::NORMAL,           // style
+                LLFontGL::DROP_SHADOW_SOFT, // shadow
+                text.size(),                // max_chars
+                x1);                        // max_pixels
+        }
+    }
+
+private:
+    llwchar mEmoji;
+    LLWString mWStr;
+    std::string mTitle;
+    size_t mBegin;
+    size_t mEnd;
+};
+
+LLFloaterEmojiPicker::LLFloaterEmojiPicker(const LLSD& key)
+: super(key)
+{
+    // This floater should hover on top of our dependent (with the dependent having the focus)
+    setFocusStealsFrontmost(FALSE);
+    setBackgroundVisible(FALSE);
+    setAutoFocus(FALSE);
+
+    loadState();
+}
+
+BOOL LLFloaterEmojiPicker::postBuild()
+{
+    mGroups = getChild<LLPanel>("Groups");
+    mBadge = getChild<LLPanel>("Badge");
+    mEmojiScroll = getChild<LLScrollContainer>("EmojiGridContainer");
+    mEmojiGrid = getChild<LLScrollingPanelList>("EmojiGrid");
+    mDummy = getChild<LLTextBox>("Dummy");
+
+    mPreview = new LLEmojiPreviewPanel();
+    mPreview->setVisible(FALSE);
+    addChild(mPreview);
+
+    return LLFloater::postBuild();
+}
+
+void LLFloaterEmojiPicker::onOpen(const LLSD& key)
+{
+    mHint = key["hint"].asString();
+
+    LLEmojiHelper::instance().setIsHideDisabled(mHint.empty());
+    mFilterPattern = mHint;
+
+    initialize();
+
+    gFloaterView->adjustToFitScreen(this, FALSE);
+}
+
+void LLFloaterEmojiPicker::dirtyRect()
+{
+    super::dirtyRect();
+
+    if (!mPreview)
+        return;
+
+    const S32 HPADDING = 4;
+    const S32 VOFFSET = 12;
+    LLRect rect(HPADDING, mDummy->getRect().mTop + 6, getRect().getWidth() - HPADDING, VOFFSET);
+    if (mPreview->getRect() != rect)
+    {
+        mPreview->setRect(rect);
+    }
+
+    if (mEmojiScroll && mEmojiGrid)
+    {
+        S32 outer_width = mEmojiScroll->getRect().getWidth();
+        S32 inner_width = mEmojiGrid->getRect().getWidth();
+        if (outer_width != inner_width)
+        {
+            resizeGroupButtons();
+            fillEmojis(true);
+        }
+    }
+}
+
+void LLFloaterEmojiPicker::initialize()
+{
+    S32 groupIndex = mSelectedGroupIndex && mSelectedGroupIndex <= mFilteredEmojiGroups.size() ?
+        mFilteredEmojiGroups[mSelectedGroupIndex - 1] : ALL_EMOJIS_GROUP_INDEX;
+
+    fillGroups();
+
+    if (mFilteredEmojis.empty())
+    {
+        if (!mHint.empty())
+        {
+            hideFloater();
+            return;
+        }
+
+        mGroups->setVisible(FALSE);
+        mFocusedIconRow = -1;
+        mFocusedIconCol = -1;
+        mFocusedIcon = nullptr;
+        mHoveredIcon = nullptr;
+        mEmojiScroll->goToTop();
+        mEmojiGrid->clearPanels();
+
+        if (mFilterPattern.empty())
+        {
+            showPreview(false);
+        }
+        else
+        {
+            const std::string prompt("No emoji found for ");
+            std::string title(prompt + '"' + mFilterPattern.substr(1) + '"');
+            mPreview->setData(EMPTY_LIST_IMAGE_INDEX, title, prompt.size() + 1, title.size() - 1);
+            showPreview(true);
+        }
+        return;
+    }
+
+    mGroups->setVisible(TRUE);
+    mPreview->setIcon(nullptr);
+    showPreview(true);
+
+    mSelectedGroupIndex = groupIndex == ALL_EMOJIS_GROUP_INDEX ? 0 :
+        (1 + std::distance(mFilteredEmojiGroups.begin(),
+            std::find(mFilteredEmojiGroups.begin(), mFilteredEmojiGroups.end(), groupIndex))) %
+        (1 + mFilteredEmojiGroups.size());
+
+    mGroupButtons[mSelectedGroupIndex]->setToggleState(TRUE);
+    mGroupButtons[mSelectedGroupIndex]->setUseFontColor(TRUE);
+
+    fillEmojis();
+}
+
+void LLFloaterEmojiPicker::fillGroups()
+{
+    // Do not use deleteAllChildren() because mBadge shouldn't be removed
+    for (LLButton* button : mGroupButtons)
+    {
+        mGroups->removeChild(button);
+    }
+    mFilteredEmojiGroups.clear();
+    mFilteredEmojis.clear();
+    mGroupButtons.clear();
+
+    LLButton::Params params;
+    params.font = LLFontGL::getFontEmoji();
+
+    LLRect rect;
+    rect.mTop = mGroups->getRect().getHeight();
+    rect.mBottom = mBadge->getRect().getHeight();
+
+    // Create button for "All categories"
+    createGroupButton(params, rect, ALL_EMOJIS_IMAGE_INDEX);
+
+    // Create group and button for "Recently used" and/or "Frequently used"
+    if (!sRecentlyUsed.empty() || !sFrequentlyUsed.empty())
+    {
+        std::map<std::string, std::vector<LLEmojiSearchResult>> cats;
+        fillCategoryRecentlyUsed(cats);
+        fillCategoryFrequentlyUsed(cats);
+
+        if (!cats.empty())
+        {
+            mFilteredEmojiGroups.push_back(USED_EMOJIS_GROUP_INDEX);
+            mFilteredEmojis.emplace_back(cats);
+            createGroupButton(params, rect, USED_EMOJIS_IMAGE_INDEX);
+        }
+    }
+
+    const std::vector<LLEmojiGroup>& groups = LLEmojiDictionary::instance().getGroups();
+
+    // List all categories in the dictionary
+    for (U32 i = 0; i < groups.size(); ++i)
+    {
+        std::map<std::string, std::vector<LLEmojiSearchResult>> cats;
+
+        fillGroupEmojis(cats, i);
+
+        if (!cats.empty())
+        {
+            mFilteredEmojiGroups.push_back(i);
+            mFilteredEmojis.emplace_back(cats);
+            createGroupButton(params, rect, groups[i].Character);
+        }
+    }
+
+    resizeGroupButtons();
+}
+
+void LLFloaterEmojiPicker::fillCategoryRecentlyUsed(std::map<std::string, std::vector<LLEmojiSearchResult>>& cats)
+{
+    if (sRecentlyUsed.empty())
+        return;
+
+    std::vector<LLEmojiSearchResult> emojis;
+
+    // In case of empty mFilterPattern we'd use sRecentlyUsed directly
+    if (!mFilterPattern.empty())
+    {
+        // List all emojis in "Recently used"
+        const LLEmojiDictionary::emoji2descr_map_t& emoji2descr = LLEmojiDictionary::instance().getEmoji2Descr();
+        std::size_t begin, end;
+        for (llwchar emoji : sRecentlyUsed)
+        {
+            auto e2d = emoji2descr.find(emoji);
+            if (e2d != emoji2descr.end() && !e2d->second->ShortCodes.empty())
+            {
+                const std::string shortcode(e2d->second->ShortCodes.front());
+                if (LLEmojiDictionary::searchInShortCode(begin, end, shortcode, mFilterPattern))
+                {
+                    emojis.emplace_back(emoji, shortcode, begin, end);
+                }
+            }
+        }
+        if (emojis.empty())
+            return;
+    }
+
+    cats.emplace(std::make_pair(RECENTLY_USED_CATEGORY, emojis));
+}
+
+void LLFloaterEmojiPicker::fillCategoryFrequentlyUsed(std::map<std::string, std::vector<LLEmojiSearchResult>>& cats)
+{
+    if (sFrequentlyUsed.empty())
+        return;
+
+    std::vector<LLEmojiSearchResult> emojis;
+
+    // In case of empty mFilterPattern we'd use sFrequentlyUsed directly
+    if (!mFilterPattern.empty())
+    {
+        // List all emojis in "Frequently used"
+        const LLEmojiDictionary::emoji2descr_map_t& emoji2descr = LLEmojiDictionary::instance().getEmoji2Descr();
+        std::size_t begin, end;
+        for (const auto& emoji : sFrequentlyUsed)
+        {
+            auto e2d = emoji2descr.find(emoji.first);
+            if (e2d != emoji2descr.end() && !e2d->second->ShortCodes.empty())
+            {
+                const std::string shortcode(e2d->second->ShortCodes.front());
+                if (LLEmojiDictionary::searchInShortCode(begin, end, shortcode, mFilterPattern))
+                {
+                    emojis.emplace_back(emoji.first, shortcode, begin, end);
+                }
+            }
+        }
+        if (emojis.empty())
+            return;
+    }
+
+    cats.emplace(std::make_pair(FREQUENTLY_USED_CATEGORY, emojis));
+}
+
+void LLFloaterEmojiPicker::fillGroupEmojis(std::map<std::string, std::vector<LLEmojiSearchResult>>& cats, U32 index)
+{
+    const std::vector<LLEmojiGroup>& groups = LLEmojiDictionary::instance().getGroups();
+    const LLEmojiDictionary::cat2descrs_map_t& category2Descr = LLEmojiDictionary::instance().getCategory2Descrs();
+
+    for (const std::string& category : groups[index].Categories)
+    {
+        const LLEmojiDictionary::cat2descrs_map_t::const_iterator& c2d = category2Descr.find(category);
+        if (c2d == category2Descr.end())
+            continue;
+
+        std::vector<LLEmojiSearchResult> emojis;
+
+        // In case of empty mFilterPattern we'd use category2Descr directly
+        if (!mFilterPattern.empty())
+        {
+            // List all emojis in category
+            std::size_t begin, end;
+            for (const LLEmojiDescriptor* descr : c2d->second)
+            {
+                if (!descr->ShortCodes.empty())
+                {
+                    const std::string shortcode(descr->ShortCodes.front());
+                    if (LLEmojiDictionary::searchInShortCode(begin, end, shortcode, mFilterPattern))
+                    {
+                        emojis.emplace_back(descr->Character, shortcode, begin, end);
+                    }
+                }
+            }
+            if (emojis.empty())
+                continue;
+        }
+
+        cats.emplace(std::make_pair(category, emojis));
+    }
+}
+
+void LLFloaterEmojiPicker::createGroupButton(LLButton::Params& params, const LLRect& rect, llwchar emoji)
+{
+    LLButton* button = LLUICtrlFactory::create<LLButton>(params);
+    button->setClickedCallback([this](LLUICtrl* ctrl, const LLSD&) { onGroupButtonClick(ctrl); });
+    button->setMouseEnterCallback([this](LLUICtrl* ctrl, const LLSD&) { onGroupButtonMouseEnter(ctrl); });
+    button->setMouseLeaveCallback([this](LLUICtrl* ctrl, const LLSD&) { onGroupButtonMouseLeave(ctrl); });
+
+    button->setRect(rect);
+    button->setTabStop(FALSE);
+    button->setLabel(LLUIString(LLWString(1, emoji)));
+    button->setUseFontColor(FALSE);
+
+    mGroupButtons.push_back(button);
+    mGroups->addChild(button);
+}
+
+void LLFloaterEmojiPicker::resizeGroupButtons()
+{
+    U32 groupCount = (U32)mGroupButtons.size();
+    if (!groupCount)
+        return;
+
+    S32 totalWidth = mGroups->getRect().getWidth();
+    S32 badgeWidth = totalWidth / groupCount;
+    S32 leftOffset = (totalWidth - badgeWidth * groupCount) / 2;
+
+    for (U32 i = 0; i < groupCount; ++i)
+    {
+        LLRect rect = mGroupButtons[i]->getRect();
+        rect.mLeft = leftOffset + badgeWidth * i;
+        rect.mRight = rect.mLeft + badgeWidth;
+        mGroupButtons[i]->setRect(rect);
+    }
+
+    LLRect rect = mBadge->getRect();
+    rect.mLeft = leftOffset + badgeWidth * mSelectedGroupIndex;
+    rect.mRight = rect.mLeft + badgeWidth;
+    mBadge->setRect(rect);
+}
+
+void LLFloaterEmojiPicker::selectEmojiGroup(U32 index)
+{
+    if (index == mSelectedGroupIndex || index >= mGroupButtons.size())
+        return;
+
+    if (mSelectedGroupIndex < mGroupButtons.size())
+    {
+        mGroupButtons[mSelectedGroupIndex]->setUseFontColor(FALSE);
+        mGroupButtons[mSelectedGroupIndex]->setToggleState(FALSE);
+    }
+
+    mSelectedGroupIndex = index;
+    mGroupButtons[mSelectedGroupIndex]->setToggleState(TRUE);
+    mGroupButtons[mSelectedGroupIndex]->setUseFontColor(TRUE);
+
+    LLButton* button = mGroupButtons[mSelectedGroupIndex];
+    LLRect rect = mBadge->getRect();
+    rect.mLeft = button->getRect().mLeft;
+    rect.mRight = button->getRect().mRight;
+    mBadge->setRect(rect);
+
+    fillEmojis();
+}
+
+void LLFloaterEmojiPicker::fillEmojis(bool fromResize)
+{
+    S32 scrollbar_size = mEmojiScroll->getSize();
+    if (scrollbar_size < 0)
+    {
+        static LLUICachedControl<S32> scrollbar_size_control("UIScrollbarSize", 0);
+        scrollbar_size = scrollbar_size_control;
+    }
+
+    const S32 scroll_width = mEmojiScroll->getRect().getWidth();
+    const S32 client_width = scroll_width - scrollbar_size - mEmojiScroll->getBorderWidth() * 2;
+    const S32 grid_padding = mEmojiGrid->getPadding();
+    const S32 icon_spacing = mEmojiGrid->getSpacing();
+    const S32 row_width = client_width - grid_padding * 2;
+    const S32 icon_size = 28; // icon width and height
+    const S32 max_icons = llmax(1, (row_width + icon_spacing) / (icon_size + icon_spacing));
+
+    // Optimization: don't rearrange for different widths with the same maxIcons
+    if (fromResize && (max_icons == mRecentMaxIcons))
+        return;
+
+    mRecentMaxIcons = max_icons;
+
+    mFocusedIconRow = 0;
+    mFocusedIconCol = 0;
+    mFocusedIcon = nullptr;
+    mHoveredIcon = nullptr;
+    mEmojiScroll->goToTop();
+    mEmojiGrid->clearPanels();
+    mPreview->setIcon(nullptr);
+
+    if (mEmojiGrid->getRect().getWidth() != client_width)
+    {
+        LLRect rect = mEmojiGrid->getRect();
+        rect.mRight = rect.mLeft + client_width;
+        mEmojiGrid->setRect(rect);
+    }
+
+    LLPanel::Params row_panel_params;
+    row_panel_params.rect = LLRect(0, icon_size, row_width, 0);
+
+    LLScrollingPanelList::Params row_list_params;
+    row_list_params.rect = row_panel_params.rect;
+    row_list_params.is_horizontal = TRUE;
+    row_list_params.padding = 0;
+    row_list_params.spacing = icon_spacing;
+
+    LLPanel::Params icon_params;
+    LLRect icon_rect(0, icon_size, icon_size, 0);
+
+    static LLColor4 default_color(0.75f, 0.75f, 0.75f, 1.0f);
+    LLColor4 bg_color = LLUIColorTable::instance().getColor("MenuItemHighlightBgColor", default_color);
+
+    if (!mSelectedGroupIndex)
+    {
+        // List all groups
+        for (const auto& group : mFilteredEmojis)
+        {
+            // List all categories in the group
+            for (const auto& category : group)
+            {
+                // List all emojis in the category
+                fillEmojisCategory(category.second, category.first, row_panel_params,
+                    row_list_params, icon_params, icon_rect, max_icons, bg_color);
+            }
+        }
+    }
+    else
+    {
+        // List all categories in the selected group
+        const auto& group = mFilteredEmojis[mSelectedGroupIndex - 1];
+        for (const auto& category : group)
+        {
+            // List all emojis in the category
+            fillEmojisCategory(category.second, category.first, row_panel_params,
+                row_list_params, icon_params, icon_rect, max_icons, bg_color);
+        }
+    }
+
+    if (mEmojiGrid->getPanelList().empty())
+    {
+        showPreview(false);
+        mFocusedIconRow = -1;
+        mFocusedIconCol = -1;
+        if (!mHint.empty())
+        {
+            hideFloater();
+        }
+    }
+    else
+    {
+        showPreview(true);
+        mFocusedIconRow = 0;
+        mFocusedIconCol = 0;
+        moveFocusedIconNext();
+    }
+}
+
+void LLFloaterEmojiPicker::fillEmojisCategory(const std::vector<LLEmojiSearchResult>& emojis,
+    const std::string& category, const LLPanel::Params& row_panel_params, const LLUICtrl::Params& row_list_params,
+    const LLPanel::Params& icon_params, const LLRect& icon_rect, S32 max_icons, const LLColor4& bg)
+{
+    // Place the category title
+    std::string title =
+        category == RECENTLY_USED_CATEGORY ? getString("title_for_recently_used") :
+        category == FREQUENTLY_USED_CATEGORY ? getString("title_for_frequently_used") :
+        isupper(category.front()) ? category : LLStringUtil::capitalize(category);
+    LLEmojiGridDivider* div = new LLEmojiGridDivider(row_panel_params, title);
+    mEmojiGrid->addPanel(div, true);
+
+    int icon_index = 0;
+    LLEmojiGridRow* row = nullptr;
+
+    if (mFilterPattern.empty())
+    {
+        const LLEmojiDictionary::emoji2descr_map_t& emoji2descr = LLEmojiDictionary::instance().getEmoji2Descr();
+        LLEmojiSearchResult emoji { 0, "", 0, 0 };
+        if (category == RECENTLY_USED_CATEGORY)
+        {
+            for (llwchar code : sRecentlyUsed)
+            {
+                const LLEmojiDictionary::emoji2descr_map_t::const_iterator& e2d = emoji2descr.find(code);
+                if (e2d != emoji2descr.end() && !e2d->second->ShortCodes.empty())
+                {
+                    emoji.Character = code;
+                    emoji.String = e2d->second->ShortCodes.front();
+                    createEmojiIcon(emoji, category, row_panel_params, row_list_params, icon_params,
+                        icon_rect, max_icons, bg, row, icon_index);
+                }
+            }
+        }
+        else if (category == FREQUENTLY_USED_CATEGORY)
+        {
+            for (const auto& code : sFrequentlyUsed)
+            {
+                const LLEmojiDictionary::emoji2descr_map_t::const_iterator& e2d = emoji2descr.find(code.first);
+                if (e2d != emoji2descr.end() && !e2d->second->ShortCodes.empty())
+                {
+                    emoji.Character = code.first;
+                    emoji.String = e2d->second->ShortCodes.front();
+                    createEmojiIcon(emoji, category, row_panel_params, row_list_params, icon_params,
+                        icon_rect, max_icons, bg, row, icon_index);
+                }
+            }
+        }
+        else
+        {
+            const LLEmojiDictionary::cat2descrs_map_t& category2Descr = LLEmojiDictionary::instance().getCategory2Descrs();
+            const LLEmojiDictionary::cat2descrs_map_t::const_iterator& c2d = category2Descr.find(category);
+            if (c2d != category2Descr.end())
+            {
+                for (const LLEmojiDescriptor* descr : c2d->second)
+                {
+                    emoji.Character = descr->Character;
+                    emoji.String = descr->ShortCodes.front();
+                    createEmojiIcon(emoji, category, row_panel_params, row_list_params, icon_params,
+                        icon_rect, max_icons, bg, row, icon_index);
+                }
+            }
+        }
+    }
+    else
+    {
+        for (const LLEmojiSearchResult& emoji : emojis)
+        {
+            createEmojiIcon(emoji, category, row_panel_params, row_list_params, icon_params,
+                icon_rect, max_icons, bg, row, icon_index);
+        }
+    }
+}
+
+void LLFloaterEmojiPicker::createEmojiIcon(const LLEmojiSearchResult& emoji,
+    const std::string& category, const LLPanel::Params& row_panel_params, const LLUICtrl::Params& row_list_params,
+    const LLPanel::Params& icon_params, const LLRect& icon_rect, S32 max_icons, const LLColor4& bg,
+    LLEmojiGridRow*& row, int& icon_index)
+{
+    // Place a new row each (max_icons) icons
+    if (!(icon_index % max_icons))
+    {
+        row = new LLEmojiGridRow(row_panel_params, *(const LLScrollingPanelList::Params*)&row_list_params);
+        mEmojiGrid->addPanel(row, true);
+    }
+
+    // Place a new icon to the current row
+    LLEmojiGridIcon* icon = new LLEmojiGridIcon(icon_params, emoji);
+    icon->setMouseEnterCallback([this](LLUICtrl* ctrl, const LLSD&) { onEmojiMouseEnter(ctrl); });
+    icon->setMouseLeaveCallback([this](LLUICtrl* ctrl, const LLSD&) { onEmojiMouseLeave(ctrl); });
+    icon->setMouseDownCallback([this](LLUICtrl* ctrl, S32, S32, MASK) { onEmojiMouseDown(ctrl); });
+    icon->setMouseUpCallback([this](LLUICtrl* ctrl, S32, S32, MASK) { onEmojiMouseUp(ctrl); });
+    icon->setBackgroundColor(bg);
+    icon->setBackgroundOpaque(1);
+    icon->setRect(icon_rect);
+    row->mList->addPanel(icon, true);
+
+    icon_index++;
+}
+
+void LLFloaterEmojiPicker::showPreview(bool show)
+{
+    //mPreview->setIcon(nullptr);
+    mDummy->setVisible(show ? FALSE : TRUE);
+    mPreview->setVisible(show ? TRUE : FALSE);
+}
+
+void LLFloaterEmojiPicker::onGroupButtonClick(LLUICtrl* ctrl)
+{
+    if (LLButton* button = dynamic_cast<LLButton*>(ctrl))
+    {
+        if (button == mGroupButtons[mSelectedGroupIndex] || button->getToggleState())
+            return;
+
+        auto it = std::find(mGroupButtons.begin(), mGroupButtons.end(), button);
+        if (it == mGroupButtons.end())
+            return;
+
+        selectEmojiGroup(it - mGroupButtons.begin());
+    }
+}
+
+void LLFloaterEmojiPicker::onGroupButtonMouseEnter(LLUICtrl* ctrl)
+{
+    if (LLButton* button = dynamic_cast<LLButton*>(ctrl))
+    {
+        button->setUseFontColor(TRUE);
+    }
+}
+
+void LLFloaterEmojiPicker::onGroupButtonMouseLeave(LLUICtrl* ctrl)
+{
+    if (LLButton* button = dynamic_cast<LLButton*>(ctrl))
+    {
+        button->setUseFontColor(button->getToggleState());
+    }
+}
+
+void LLFloaterEmojiPicker::onEmojiMouseEnter(LLUICtrl* ctrl)
+{
+    if (LLEmojiGridIcon* icon = dynamic_cast<LLEmojiGridIcon*>(ctrl))
+    {
+        if (mFocusedIcon && mFocusedIcon != icon && mFocusedIcon->isBackgroundVisible())
+        {
+            unselectGridIcon(mFocusedIcon);
+        }
+
+        if (mHoveredIcon && mHoveredIcon != icon)
+        {
+            unselectGridIcon(mHoveredIcon);
+        }
+
+        selectGridIcon(icon);
+
+        mHoveredIcon = icon;
+    }
+}
+
+void LLFloaterEmojiPicker::onEmojiMouseLeave(LLUICtrl* ctrl)
+{
+    if (LLEmojiGridIcon* icon = dynamic_cast<LLEmojiGridIcon*>(ctrl))
+    {
+        if (icon == mHoveredIcon)
+        {
+            if (icon != mFocusedIcon)
+            {
+                unselectGridIcon(icon);
+            }
+            mHoveredIcon = nullptr;
+        }
+
+        if (!mHoveredIcon && mFocusedIcon && !mFocusedIcon->isBackgroundVisible())
+        {
+            selectGridIcon(mFocusedIcon);
+        }
+    }
+}
+
+void LLFloaterEmojiPicker::onEmojiMouseDown(LLUICtrl* ctrl)
+{
+    if (getSoundFlags() & MOUSE_DOWN)
+    {
+        make_ui_sound("UISndClick");
+    }
+}
+
+void LLFloaterEmojiPicker::onEmojiMouseUp(LLUICtrl* ctrl)
+{
+    if (getSoundFlags() & MOUSE_UP)
+    {
+        make_ui_sound("UISndClickRelease");
+    }
+
+    if (LLEmojiGridIcon* icon = dynamic_cast<LLEmojiGridIcon*>(ctrl))
+    {
+        LLSD value(wstring_to_utf8str(icon->getText()));
+        setValue(value);
+
+        onCommit();
+
+        if (!mHint.empty() || !(gKeyboard->currentMask(TRUE) & MASK_SHIFT))
+        {
+            hideFloater();
+        }
+    }
+}
+
+void LLFloaterEmojiPicker::selectFocusedIcon()
+{
+    if (mFocusedIcon && mFocusedIcon != mHoveredIcon)
+    {
+        unselectGridIcon(mFocusedIcon);
+    }
+
+    // Both mFocusedIconRow and mFocusedIconCol should be already verified
+    LLEmojiGridRow* row = dynamic_cast<LLEmojiGridRow*>(mEmojiGrid->getPanelList()[mFocusedIconRow]);
+    mFocusedIcon = row ? dynamic_cast<LLEmojiGridIcon*>(row->mList->getPanelList()[mFocusedIconCol]) : nullptr;
+
+    if (mFocusedIcon && !mHoveredIcon)
+    {
+        selectGridIcon(mFocusedIcon);
+    }
+}
+
+bool LLFloaterEmojiPicker::moveFocusedIconUp()
+{
+    for (S32 i = mFocusedIconRow - 1; i >= 0; --i)
+    {
+        LLScrollingPanel* panel = mEmojiGrid->getPanelList()[i];
+        LLEmojiGridRow* row = dynamic_cast<LLEmojiGridRow*>(panel);
+        if (row && row->mList->getPanelList().size() > mFocusedIconCol)
+        {
+            mEmojiScroll->scrollToShowRect(row->getBoundingRect());
+            mFocusedIconRow = i;
+            selectFocusedIcon();
+            return true;
+        }
+    }
+
+    return false;
+}
+
+bool LLFloaterEmojiPicker::moveFocusedIconDown()
+{
+    S32 rowCount = mEmojiGrid->getPanelList().size();
+    for (S32 i = mFocusedIconRow + 1; i < rowCount; ++i)
+    {
+        LLScrollingPanel* panel = mEmojiGrid->getPanelList()[i];
+        LLEmojiGridRow* row = dynamic_cast<LLEmojiGridRow*>(panel);
+        if (row && row->mList->getPanelList().size() > mFocusedIconCol)
+        {
+            mEmojiScroll->scrollToShowRect(row->getBoundingRect());
+            mFocusedIconRow = i;
+            selectFocusedIcon();
+            return true;
+        }
+    }
+
+    return false;
+}
+
+bool LLFloaterEmojiPicker::moveFocusedIconPrev()
+{
+    if (mHoveredIcon)
+        return false;
+
+    if (mFocusedIconCol > 0)
+    {
+        mFocusedIconCol--;
+        selectFocusedIcon();
+        return true;
+    }
+
+    for (S32 i = mFocusedIconRow - 1; i >= 0; --i)
+    {
+        LLScrollingPanel* panel = mEmojiGrid->getPanelList()[i];
+        LLEmojiGridRow* row = dynamic_cast<LLEmojiGridRow*>(panel);
+        if (row && row->mList->getPanelList().size())
+        {
+            mEmojiScroll->scrollToShowRect(row->getBoundingRect());
+            mFocusedIconCol = row->mList->getPanelList().size() - 1;
+            mFocusedIconRow = i;
+            selectFocusedIcon();
+            return true;
+        }
+    }
+
+    return false;
+}
+
+bool LLFloaterEmojiPicker::moveFocusedIconNext()
+{
+    if (mHoveredIcon)
+        return false;
+
+    LLScrollingPanel* panel = mEmojiGrid->getPanelList()[mFocusedIconRow];
+    LLEmojiGridRow* row = dynamic_cast<LLEmojiGridRow*>(panel);
+    S32 colCount = row ? row->mList->getPanelList().size() : 0;
+    if (mFocusedIconCol < colCount - 1)
+    {
+        mFocusedIconCol++;
+        selectFocusedIcon();
+        return true;
+    }
+
+    S32 rowCount = mEmojiGrid->getPanelList().size();
+    for (S32 i = mFocusedIconRow + 1; i < rowCount; ++i)
+    {
+        LLScrollingPanel* panel = mEmojiGrid->getPanelList()[i];
+        LLEmojiGridRow* row = dynamic_cast<LLEmojiGridRow*>(panel);
+        if (row && row->mList->getPanelList().size())
+        {
+            mEmojiScroll->scrollToShowRect(row->getBoundingRect());
+            mFocusedIconCol = 0;
+            mFocusedIconRow = i;
+            selectFocusedIcon();
+            return true;
+        }
+    }
+
+    return false;
+}
+
+void LLFloaterEmojiPicker::selectGridIcon(LLEmojiGridIcon* icon)
+{
+    icon->setBackgroundVisible(TRUE);
+    mPreview->setIcon(icon);
+}
+
+void LLFloaterEmojiPicker::unselectGridIcon(LLEmojiGridIcon* icon)
+{
+    icon->setBackgroundVisible(FALSE);
+    mPreview->setIcon(nullptr);
+}
+
+// virtual
+BOOL LLFloaterEmojiPicker::handleKey(KEY key, MASK mask, BOOL called_from_parent)
+{
+    if (mask == MASK_NONE)
+    {
+        switch (key)
+        {
+        case KEY_UP:
+            moveFocusedIconUp();
+            return TRUE;
+        case KEY_DOWN:
+            moveFocusedIconDown();
+            return TRUE;
+        case KEY_LEFT:
+            moveFocusedIconPrev();
+            return TRUE;
+        case KEY_RIGHT:
+            moveFocusedIconNext();
+            return TRUE;
+        case KEY_ESCAPE:
+            hideFloater();
+            return TRUE;
+        }
+    }
+
+    if (mask == MASK_ALT)
+    {
+        switch (key)
+        {
+        case KEY_LEFT:
+            selectEmojiGroup((mSelectedGroupIndex + mFilteredEmojis.size()) % mGroupButtons.size());
+            return TRUE;
+        case KEY_RIGHT:
+            selectEmojiGroup((mSelectedGroupIndex + 1) % mGroupButtons.size());
+            return TRUE;
+        }
+    }
+
+    if (key == KEY_RETURN)
+    {
+        U64 time = totalTime();
+        // <Shift+Return> comes twice for unknown reason
+        if (mFocusedIcon && (time - mRecentReturnPressedMs > 100000)) // Min interval 0.1 sec.
+        {
+            onEmojiMouseDown(mFocusedIcon);
+            onEmojiMouseUp(mFocusedIcon);
+        }
+        mRecentReturnPressedMs = time;
+        return TRUE;
+    }
+
+    if (mHint.empty())
+    {
+        if (key >= 0x20 && key < 0x80)
+        {
+            if (!mEmojiGrid->getPanelList().empty())
+            {
+                if (mFilterPattern.empty())
+                {
+                    mFilterPattern = ":";
+                }
+                mFilterPattern += (char)key;
+                initialize();
+            }
+            return TRUE;
+        }
+        else if (key == KEY_BACKSPACE)
+        {
+            if (!mFilterPattern.empty())
+            {
+                mFilterPattern.pop_back();
+                if (mFilterPattern == ":")
+                {
+                    mFilterPattern.clear();
+                }
+                initialize();
+            }
+            return TRUE;
+        }
+    }
+
+    return super::handleKey(key, mask, called_from_parent);
+}
+
+// virtual
+void LLFloaterEmojiPicker::goneFromFront()
+{
+    hideFloater();
+}
+
+void LLFloaterEmojiPicker::hideFloater() const
+{
+    LLEmojiHelper::instance().hideHelper(nullptr, true);
+}
+
+// static
+std::list<llwchar>& LLFloaterEmojiPicker::getRecentlyUsed()
+{
+    loadState();
+    return sRecentlyUsed;
+}
+
+// static
+void LLFloaterEmojiPicker::onEmojiUsed(llwchar emoji)
+{
+    // Update sRecentlyUsed
+    auto itr = std::find(sRecentlyUsed.begin(), sRecentlyUsed.end(), emoji);
+    if (itr == sRecentlyUsed.end())
+    {
+        sRecentlyUsed.push_front(emoji);
+    }
+    else if (itr != sRecentlyUsed.begin())
+    {
+        sRecentlyUsed.erase(itr);
+        sRecentlyUsed.push_front(emoji);
+    }
+
+    // Increment and reorder sFrequentlyUsed
+    auto itf = sFrequentlyUsed.begin();
+    while (itf != sFrequentlyUsed.end())
+    {
+        if (itf->first == emoji)
+        {
+            itf->second++;
+            while (itf != sFrequentlyUsed.begin())
+            {
+                auto prior = itf;
+                prior--;
+                if (prior->second > itf->second)
+                    break;
+                prior->swap(*itf);
+                itf = prior;
+            }
+            break;
+        }
+        itf++;
+    }
+    // Append new if not found
+    if (itf == sFrequentlyUsed.end())
+    {
+        // Insert before others with count == 1
+        while (itf != sFrequentlyUsed.begin())
+        {
+            auto prior = itf;
+            prior--;
+            if (prior->second > 1)
+                break;
+            itf = prior;
+        }
+        sFrequentlyUsed.insert(itf, std::make_pair(emoji, 1));
+    }
+}
+
+// static
+void LLFloaterEmojiPicker::loadState()
+{
+    if (!sStateFileName.empty())
+        return; // Already loaded
+
+    sStateFileName = gDirUtilp->getExpandedFilename(LL_PATH_PER_SL_ACCOUNT, "emoji_floater_state.xml");
+
+    llifstream file;
+    file.open(sStateFileName.c_str());
+    if (!file.is_open())
+    {
+        LL_WARNS() << "Emoji floater state file is missing or inaccessible: " << sStateFileName << LL_ENDL;
+        return;
+    }
+
+    LLSD state;
+    LLSDSerialize::fromXML(state, file);
+    if (state.isUndefined())
+    {
+        LL_WARNS() << "Emoji floater state file is missing or ill-formed: " << sStateFileName << LL_ENDL;
+        return;
+    }
+
+    // Load and parse sRecentlyUsed
+    std::string recentlyUsed = state[sKeyRecentlyUsed];
+    std::vector<std::string> rtokens = LLStringUtil::getTokens(recentlyUsed, ",");
+    int maxCountR = 20;
+    for (const std::string& token : rtokens)
+    {
+        llwchar emoji = (llwchar)atoi(token.c_str());
+        if (std::find(sRecentlyUsed.begin(), sRecentlyUsed.end(), emoji) == sRecentlyUsed.end())
+        {
+            sRecentlyUsed.push_back(emoji);
+            if (!--maxCountR)
+                break;
+        }
+    }
+
+    // Load and parse sFrequentlyUsed
+    std::string frequentlyUsed = state[sKeyFrequentlyUsed];
+    std::vector<std::string> ftokens = LLStringUtil::getTokens(frequentlyUsed, ",");
+    int maxCountF = 20;
+    for (const std::string& token : ftokens)
+    {
+        std::vector<std::string> pair = LLStringUtil::getTokens(token, ":");
+        if (pair.size() == 2)
+        {
+            llwchar emoji = (llwchar)atoi(pair[0].c_str());
+            if (emoji)
+            {
+                U32 count = atoi(pair[1].c_str());
+                auto it = std::find_if(sFrequentlyUsed.begin(), sFrequentlyUsed.end(),
+                    [emoji](std::pair<llwchar, U32>& it) { return it.first == emoji; });
+                if (it != sFrequentlyUsed.end())
+                {
+                    it->second += count;
+                }
+                else
+                {
+                    sFrequentlyUsed.push_back(std::make_pair(emoji, count));
+                    if (!--maxCountF)
+                        break;
+                }
+            }
+        }
+    }
+
+    // Normalize by minimum
+    if (!sFrequentlyUsed.empty())
+    {
+        U32 delta = sFrequentlyUsed.back().second - 1;
+        for (auto& it : sFrequentlyUsed)
+        {
+            it.second = std::max((U32)0, it.second - delta);
+        }
+    }
+}
+
+// static
+void LLFloaterEmojiPicker::saveState()
+{
+    if (sStateFileName.empty())
+        return; // Not loaded
+
+    if (LLAppViewer::instance()->isSecondInstance())
+        return; // Not allowed
+
+    LLSD state = LLSD::emptyMap();
+
+    if (!sRecentlyUsed.empty())
+    {
+        U32 maxCount = 20;
+        std::string recentlyUsed;
+        for (llwchar emoji : sRecentlyUsed)
+        {
+            if (!recentlyUsed.empty())
+                recentlyUsed += ",";
+            char buffer[32];
+            sprintf(buffer, "%u", (U32)emoji);
+            recentlyUsed += buffer;
+            if (!--maxCount)
+                break;
+        }
+        state[sKeyRecentlyUsed] = recentlyUsed;
+    }
+
+    if (!sFrequentlyUsed.empty())
+    {
+        U32 maxCount = 20;
+        std::string frequentlyUsed;
+        for (auto& it : sFrequentlyUsed)
+        {
+            if (!frequentlyUsed.empty())
+                frequentlyUsed += ",";
+            char buffer[32];
+            sprintf(buffer, "%u:%u", (U32)it.first, (U32)it.second);
+            frequentlyUsed += buffer;
+            if (!--maxCount)
+                break;
+        }
+        state[sKeyFrequentlyUsed] = frequentlyUsed;
+    }
+
+    llofstream stream(sStateFileName.c_str());
+    LLSDSerialize::toPrettyXML(state, stream);
+}
diff --git a/indra/newview/llfloateremojipicker.h b/indra/newview/llfloateremojipicker.h
new file mode 100644
index 0000000000..5d0402ca83
--- /dev/null
+++ b/indra/newview/llfloateremojipicker.h
@@ -0,0 +1,122 @@
+/**
+ * @file llfloateremojipicker.h
+ * @brief Header file for llfloateremojipicker
+ *
+ * $LicenseInfo:firstyear=2003&license=viewerlgpl$
+ * 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 LLFLOATEREMOJIPICKER_H
+#define LLFLOATEREMOJIPICKER_H
+
+#include "llfloater.h"
+
+class LLEmojiGridRow;
+class LLEmojiGridIcon;
+struct LLEmojiDescriptor;
+struct LLEmojiSearchResult;
+
+class LLFloaterEmojiPicker : public LLFloater
+{
+    using super = LLFloater;
+
+public:
+    // The callback function will be called with an emoji char.
+    typedef boost::function<void (llwchar)> pick_callback_t;
+    typedef boost::function<void ()> close_callback_t;
+
+    LLFloaterEmojiPicker(const LLSD& key);
+
+    virtual	BOOL postBuild() override;
+    virtual void dirtyRect() override;
+    virtual void goneFromFront() override;
+
+    void hideFloater() const;
+
+    static std::list<llwchar>& getRecentlyUsed();
+    static void onEmojiUsed(llwchar emoji);
+
+    static void loadState();
+    static void saveState();
+
+private:
+    void initialize();
+    void fillGroups();
+    void fillCategoryRecentlyUsed(std::map<std::string, std::vector<LLEmojiSearchResult>>& cats);
+    void fillCategoryFrequentlyUsed(std::map<std::string, std::vector<LLEmojiSearchResult>>& cats);
+    void fillGroupEmojis(std::map<std::string, std::vector<LLEmojiSearchResult>>& cats, U32 index);
+    void createGroupButton(LLButton::Params& params, const LLRect& rect, llwchar emoji);
+    void resizeGroupButtons();
+    void selectEmojiGroup(U32 index);
+    void fillEmojis(bool fromResize = false);
+    void fillEmojisCategory(const std::vector<LLEmojiSearchResult>& emojis,
+        const std::string& category, const LLPanel::Params& row_panel_params, const LLUICtrl::Params& row_list_params,
+        const LLPanel::Params& icon_params, const LLRect& icon_rect, S32 max_icons, const LLColor4& bg);
+    void createEmojiIcon(const LLEmojiSearchResult& emoji,
+        const std::string& category, const LLPanel::Params& row_panel_params, const LLUICtrl::Params& row_list_params,
+        const LLPanel::Params& icon_params, const LLRect& icon_rect, S32 max_icons, const LLColor4& bg,
+        LLEmojiGridRow*& row, int& icon_index);
+    void showPreview(bool show);
+
+    void onGroupButtonClick(LLUICtrl* ctrl);
+    void onGroupButtonMouseEnter(LLUICtrl* ctrl);
+    void onGroupButtonMouseLeave(LLUICtrl* ctrl);
+    void onEmojiMouseEnter(LLUICtrl* ctrl);
+    void onEmojiMouseLeave(LLUICtrl* ctrl);
+    void onEmojiMouseDown(LLUICtrl* ctrl);
+    void onEmojiMouseUp(LLUICtrl* ctrl);
+
+    void selectFocusedIcon();
+    bool moveFocusedIconUp();
+    bool moveFocusedIconDown();
+    bool moveFocusedIconPrev();
+    bool moveFocusedIconNext();
+
+    void selectGridIcon(LLEmojiGridIcon* icon);
+    void unselectGridIcon(LLEmojiGridIcon* icon);
+
+    void onOpen(const LLSD& key) override;
+    virtual BOOL handleKey(KEY key, MASK mask, BOOL called_from_parent) override;
+
+    class LLPanel* mGroups { nullptr };
+    class LLPanel* mBadge { nullptr };
+    class LLScrollContainer* mEmojiScroll { nullptr };
+    class LLScrollingPanelList* mEmojiGrid { nullptr };
+    class LLEmojiPreviewPanel* mPreview { nullptr };
+    class LLTextBox* mDummy { nullptr };
+
+    std::vector<S32> mFilteredEmojiGroups;
+    std::vector<std::map<std::string, std::vector<LLEmojiSearchResult>>> mFilteredEmojis;
+    std::vector<class LLButton*> mGroupButtons;
+
+    std::string mHint;
+    std::string mFilterPattern;
+    U32 mSelectedGroupIndex { 0 };
+    S32 mRecentMaxIcons { 0 };
+    S32 mFocusedIconRow { 0 };
+    S32 mFocusedIconCol { 0 };
+    LLEmojiGridIcon* mFocusedIcon { nullptr };
+    LLEmojiGridIcon* mHoveredIcon { nullptr };
+
+    U64 mRecentReturnPressedMs { 0 };
+};
+
+#endif
diff --git a/indra/newview/llfloaterimnearbychat.cpp b/indra/newview/llfloaterimnearbychat.cpp
index bb4cc9bca3..40bdf14deb 100644
--- a/indra/newview/llfloaterimnearbychat.cpp
+++ b/indra/newview/llfloaterimnearbychat.cpp
@@ -130,11 +130,12 @@ BOOL LLFloaterIMNearbyChat::postBuild()
 	mInputEditor->setKeystrokeCallback(boost::bind(&LLFloaterIMNearbyChat::onChatBoxKeystroke, this));
 	mInputEditor->setFocusLostCallback(boost::bind(&LLFloaterIMNearbyChat::onChatBoxFocusLost, this));
 	mInputEditor->setFocusReceivedCallback(boost::bind(&LLFloaterIMNearbyChat::onChatBoxFocusReceived, this));
-	mInputEditor->setLabel(LLTrans::getString("NearbyChatTitle"));
+	std::string nearbyChatTitle(LLTrans::getString("NearbyChatTitle"));
+	mInputEditor->setLabel(nearbyChatTitle);
 
 	// Title must be defined BEFORE call to addConversationListItem() because
 	// it is used to show the item's name in the conversations list
-	setTitle(LLTrans::getString("NearbyChatTitle"));
+	setTitle(nearbyChatTitle);
 
 	// obsolete, but may be needed for backward compatibility?
 	gSavedSettings.declareS32("nearbychat_showicons_and_names", 2, "NearByChat header settings", LLControlVariable::PERSIST_NONDFT);
@@ -590,6 +591,8 @@ void LLFloaterIMNearbyChat::sendChat( EChatType type )
 			S32 channel = 0;
 			stripChannelNumber(text, &channel);
 			
+			updateUsedEmojis(text);
+
 			std::string utf8text = wstring_to_utf8str(text);
 			// Try to trigger a gesture, if not chat to a script.
 			std::string utf8_revised_text;
diff --git a/indra/newview/llfloaterimsession.cpp b/indra/newview/llfloaterimsession.cpp
index ee9dc35283..ed2a2807b5 100644
--- a/indra/newview/llfloaterimsession.cpp
+++ b/indra/newview/llfloaterimsession.cpp
@@ -249,6 +249,8 @@ void LLFloaterIMSession::sendMsgFromInputEditor()
 			LLWStringUtil::replaceChar(text,182,'\n'); // Convert paragraph symbols back into newlines.
 			if(!text.empty())
 			{
+				updateUsedEmojis(text);
+
 				// Truncate and convert to UTF8 for transport
 				std::string utf8_text = wstring_to_utf8str(text);
 
diff --git a/indra/newview/llfloaterimsessiontab.cpp b/indra/newview/llfloaterimsessiontab.cpp
index 0b0dce29fb..24cc398f3b 100644
--- a/indra/newview/llfloaterimsessiontab.cpp
+++ b/indra/newview/llfloaterimsessiontab.cpp
@@ -33,18 +33,21 @@
 #include "llagentcamera.h"
 #include "llavataractions.h"
 #include "llavatariconctrl.h"
-#include "llgroupiconctrl.h"
 #include "llchatentry.h"
 #include "llchathistory.h"
 #include "llchiclet.h"
 #include "llchicletbar.h"
 #include "lldraghandle.h"
+#include "llemojidictionary.h"
 #include "llfloaterreg.h"
+#include "llfloateremojipicker.h"
 #include "llfloaterimsession.h"
 #include "llfloaterimcontainer.h" // to replace separate IM Floaters with multifloater container
+#include "llfloaterimnearbychat.h"
+#include "llgroupiconctrl.h"
 #include "lllayoutstack.h"
+#include "llpanelemojicomplete.h"
 #include "lltoolbarview.h"
-#include "llfloaterimnearbychat.h"
 
 const F32 REFRESH_INTERVAL = 1.0f;
 const std::string ICN_GROUP("group_chat_icon");
@@ -56,7 +59,7 @@ void cb_group_do_nothing()
 }
 
 LLFloaterIMSessionTab::LLFloaterIMSessionTab(const LLSD& session_id)
-:	LLTransientDockableFloater(NULL, false, session_id),
+:	super(NULL, false, session_id),
 	mIsP2PChat(false),
 	mExpandCollapseBtn(NULL),
 	mTearOffBtn(NULL),
@@ -75,7 +78,7 @@ LLFloaterIMSessionTab::LLFloaterIMSessionTab(const LLSD& session_id)
 	mInputPanels(NULL),
 	mChatLayoutPanelHeight(0)
 {
-    setAutoFocus(FALSE);
+	setAutoFocus(FALSE);
 	mSession = LLIMModel::getInstance()->findIMSession(mSessionID);
 
 	mCommitCallbackRegistrar.add("IMSession.Menu.Action",
@@ -88,12 +91,12 @@ LLFloaterIMSessionTab::LLFloaterIMSessionTab(const LLSD& session_id)
 			boost::bind(&LLFloaterIMSessionTab::onIMShowModesMenuItemEnable,  this, _2));
 
 	// Right click menu handling
-    mEnableCallbackRegistrar.add("Avatar.CheckItem",  boost::bind(&LLFloaterIMSessionTab::checkContextMenuItem,	this, _2));
-    mEnableCallbackRegistrar.add("Avatar.EnableItem", boost::bind(&LLFloaterIMSessionTab::enableContextMenuItem, this, _2));
-    mCommitCallbackRegistrar.add("Avatar.DoToSelected", boost::bind(&LLFloaterIMSessionTab::doToSelected, this, _2));
-    mCommitCallbackRegistrar.add("Group.DoToSelected", boost::bind(&cb_group_do_nothing));
+	mEnableCallbackRegistrar.add("Avatar.CheckItem",  boost::bind(&LLFloaterIMSessionTab::checkContextMenuItem,	this, _2));
+	mEnableCallbackRegistrar.add("Avatar.EnableItem", boost::bind(&LLFloaterIMSessionTab::enableContextMenuItem, this, _2));
+	mCommitCallbackRegistrar.add("Avatar.DoToSelected", boost::bind(&LLFloaterIMSessionTab::doToSelected, this, _2));
+	mCommitCallbackRegistrar.add("Group.DoToSelected", boost::bind(&cb_group_do_nothing));
 
-    mMinFloaterHeight = getMinHeight();
+	mMinFloaterHeight = getMinHeight();
 }
 
 LLFloaterIMSessionTab::~LLFloaterIMSessionTab()
@@ -101,7 +104,7 @@ LLFloaterIMSessionTab::~LLFloaterIMSessionTab()
 	delete mRefreshTimer;
 }
 
-//static
+// static
 LLFloaterIMSessionTab* LLFloaterIMSessionTab::findConversation(const LLUUID& uuid)
 {
 	LLFloaterIMSessionTab* conv;
@@ -118,7 +121,7 @@ LLFloaterIMSessionTab* LLFloaterIMSessionTab::findConversation(const LLUUID& uui
 	return conv;
 };
 
-//static
+// static
 LLFloaterIMSessionTab* LLFloaterIMSessionTab::getConversation(const LLUUID& uuid)
 {
 	LLFloaterIMSessionTab* conv;
@@ -134,14 +137,16 @@ LLFloaterIMSessionTab* LLFloaterIMSessionTab::getConversation(const LLUUID& uuid
 	}
 
 	return conv;
+
 };
 
+// virtual
 void LLFloaterIMSessionTab::setVisible(BOOL visible)
 {
-	if(visible && !mHasVisibleBeenInitialized)
+	if (visible && !mHasVisibleBeenInitialized)
 	{
 		mHasVisibleBeenInitialized = true;
-		if(!gAgentCamera.cameraMouselook())
+		if (!gAgentCamera.cameraMouselook())
 		{
 			LLFloaterReg::getTypedInstance<LLFloaterIMContainer>("im_container")->setVisible(true);
 		}
@@ -155,27 +160,26 @@ void LLFloaterIMSessionTab::setVisible(BOOL visible)
 		mInputButtonPanel->setVisible(isTornOff());
 	}
 
-	LLTransientDockableFloater::setVisible(visible);
+	super::setVisible(visible);
 }
 
-/*virtual*/
+// virtual
 void LLFloaterIMSessionTab::setFocus(BOOL focus)
 {
-	LLTransientDockableFloater::setFocus(focus);
+	super::setFocus(focus);
 
-    //Redirect focus to input editor
-    if (focus)
+	// Redirect focus to input editor
+	if (focus)
 	{
-    	updateMessages();
+		updateMessages();
 
-        if (mInputEditor)
-        {
-    	    mInputEditor->setFocus(TRUE);
-        }
+		if (mInputEditor)
+		{
+			mInputEditor->setFocus(TRUE);
+		}
 	}
 }
 
-
 void LLFloaterIMSessionTab::addToHost(const LLUUID& session_id)
 {
 	if ((session_id.notNull() && !gIMMgr->hasSession(session_id))
@@ -220,42 +224,60 @@ void LLFloaterIMSessionTab::assignResizeLimits()
 {
 	bool is_participants_pane_collapsed = mParticipantListPanel->isCollapsed();
 
-    // disable a layoutstack's functionality when participant list panel is collapsed
+	// disable a layoutstack's functionality when participant list panel is collapsed
 	mRightPartPanel->setIgnoreReshape(is_participants_pane_collapsed);
 
-    S32 participants_pane_target_width = is_participants_pane_collapsed?
-    		0 : (mParticipantListPanel->getRect().getWidth() + mParticipantListAndHistoryStack->getPanelSpacing());
+	S32 participants_pane_target_width = is_participants_pane_collapsed?
+			0 : (mParticipantListPanel->getRect().getWidth() + mParticipantListAndHistoryStack->getPanelSpacing());
 
-    S32 new_min_width = participants_pane_target_width + mRightPartPanel->getExpandedMinDim() + mFloaterExtraWidth;
+	S32 new_min_width = participants_pane_target_width + mRightPartPanel->getExpandedMinDim() + mFloaterExtraWidth;
 
 	setResizeLimits(new_min_width, getMinHeight());
 
 	this->mParticipantListAndHistoryStack->updateLayout();
 }
 
+// virtual
 BOOL LLFloaterIMSessionTab::postBuild()
 {
 	BOOL result;
 
 	mBodyStack = getChild<LLLayoutStack>("main_stack");
-    mParticipantListAndHistoryStack = getChild<LLLayoutStack>("im_panels");
+	mParticipantListAndHistoryStack = getChild<LLLayoutStack>("im_panels");
 
 	mCloseBtn = getChild<LLButton>("close_btn");
-	mCloseBtn->setCommitCallback(boost::bind(&LLFloater::onClickClose, this));
+	mCloseBtn->setCommitCallback([this](LLUICtrl*, const LLSD&) { onClickClose(this); });
 
 	mExpandCollapseBtn = getChild<LLButton>("expand_collapse_btn");
-	mExpandCollapseBtn->setClickedCallback(boost::bind(&LLFloaterIMSessionTab::onSlide, this));
+	mExpandCollapseBtn->setClickedCallback([this](LLUICtrl*, const LLSD&) { onSlide(this); });
 
 	mExpandCollapseLineBtn = getChild<LLButton>("minz_btn");
-	mExpandCollapseLineBtn->setClickedCallback(boost::bind(&LLFloaterIMSessionTab::onCollapseToLine, this));
+	mExpandCollapseLineBtn->setClickedCallback([this](LLUICtrl*, const LLSD&) { onCollapseToLine(this); });
 
 	mTearOffBtn = getChild<LLButton>("tear_off_btn");
 	mTearOffBtn->setCommitCallback(boost::bind(&LLFloaterIMSessionTab::onTearOffClicked, this));
 
+	mEmojiRecentPanelToggleBtn = getChild<LLButton>("emoji_recent_panel_toggle_btn");
+	mEmojiRecentPanelToggleBtn->setClickedCallback([this](LLUICtrl*, const LLSD&) { onEmojiRecentPanelToggleBtnClicked(); });
+
+	mEmojiRecentPanel = getChild<LLLayoutPanel>("emoji_recent_layout_panel");
+	mEmojiRecentPanel->setVisible(false);
+
+	mEmojiRecentEmptyText = getChild<LLTextBox>("emoji_recent_empty_text");
+	mEmojiRecentEmptyText->setToolTip(mEmojiRecentEmptyText->getText());
+	mEmojiRecentEmptyText->setVisible(false);
+
+	mEmojiRecentIconsCtrl = getChild<LLPanelEmojiComplete>("emoji_recent_icons_ctrl");
+	mEmojiRecentIconsCtrl->setCommitCallback([this](LLUICtrl*, const LLSD& value) { onRecentEmojiPicked(value); });
+	mEmojiRecentIconsCtrl->setVisible(false);
+
+	mEmojiPickerShowBtn = getChild<LLButton>("emoji_picker_show_btn");
+	mEmojiPickerShowBtn->setClickedCallback([this](LLUICtrl*, const LLSD&) { onEmojiPickerShowBtnClicked(); });
+
 	mGearBtn = getChild<LLButton>("gear_btn");
-    mAddBtn = getChild<LLButton>("add_btn");
+	mAddBtn = getChild<LLButton>("add_btn");
 	mVoiceButton = getChild<LLButton>("voice_call_btn");
-    
+
 	mParticipantListPanel = getChild<LLLayoutPanel>("speakers_list_panel");
 	mRightPartPanel = getChild<LLLayoutPanel>("right_part_holder");
 
@@ -307,17 +329,17 @@ BOOL LLFloaterIMSessionTab::postBuild()
 
 	// Create the root using an ad-hoc base item
 	LLConversationItem* base_item = new LLConversationItem(mSessionID, mConversationViewModel);
-    LLFolderView::Params p(LLUICtrlFactory::getDefaultParams<LLFolderView>());
-    p.rect = LLRect(0, 0, getRect().getWidth(), 0);
-    p.parent_panel = mParticipantListPanel;
-    p.listener = base_item;
-    p.view_model = &mConversationViewModel;
-    p.root = NULL;
-    p.use_ellipses = true;
-    p.options_menu = "menu_conversation.xml";
-    p.name = "root";
+	LLFolderView::Params p(LLUICtrlFactory::getDefaultParams<LLFolderView>());
+	p.rect = LLRect(0, 0, getRect().getWidth(), 0);
+	p.parent_panel = mParticipantListPanel;
+	p.listener = base_item;
+	p.view_model = &mConversationViewModel;
+	p.root = NULL;
+	p.use_ellipses = true;
+	p.options_menu = "menu_conversation.xml";
+	p.name = "root";
 	mConversationsRoot = LLUICtrlFactory::create<LLFolderView>(p);
-    mConversationsRoot->setCallbackRegistrar(&mCommitCallbackRegistrar);
+	mConversationsRoot->setCallbackRegistrar(&mCommitCallbackRegistrar);
 	mConversationsRoot->setEnableRegistrar(&mEnableCallbackRegistrar);
 	// Attach that root to the scroller
 	mScroller->addChild(mConversationsRoot);
@@ -357,6 +379,7 @@ LLParticipantList* LLFloaterIMSessionTab::getParticipantList()
 	return dynamic_cast<LLParticipantList*>(LLFloaterIMContainer::getInstance()->getSessionModel(mSessionID));
 }
 
+// virtual
 void LLFloaterIMSessionTab::draw()
 {
 	if (mRefreshTimer->hasExpired())
@@ -381,23 +404,24 @@ void LLFloaterIMSessionTab::draw()
 		mRefreshTimer->setTimerExpirySec(REFRESH_INTERVAL);
 	}
 
-	LLTransientDockableFloater::draw();
+	super::draw();
 }
 
 void LLFloaterIMSessionTab::enableDisableCallBtn()
 {
-    if (LLVoiceClient::instanceExists() && mVoiceButton)
-    {
-        mVoiceButton->setEnabled(
-            mSessionID.notNull()
-            && mSession
-            && mSession->mSessionInitialized
-            && LLVoiceClient::getInstance()->voiceEnabled()
-            && LLVoiceClient::getInstance()->isVoiceWorking()
-            && mSession->mCallBackEnabled);
-    }
+	if (LLVoiceClient::instanceExists() && mVoiceButton)
+	{
+		mVoiceButton->setEnabled(
+			mSessionID.notNull()
+			&& mSession
+			&& mSession->mSessionInitialized
+			&& LLVoiceClient::getInstance()->voiceEnabled()
+			&& LLVoiceClient::getInstance()->isVoiceWorking()
+			&& mSession->mCallBackEnabled);
+	}
 }
 
+// virtual
 void LLFloaterIMSessionTab::onFocusReceived()
 {
 	setBackgroundOpaque(true);
@@ -407,13 +431,14 @@ void LLFloaterIMSessionTab::onFocusReceived()
 		LLIMModel::instance().sendNoUnreadMessages(mSessionID);
 	}
 
-	LLTransientDockableFloater::onFocusReceived();
+	super::onFocusReceived();
 }
 
+// virtual
 void LLFloaterIMSessionTab::onFocusLost()
 {
 	setBackgroundOpaque(false);
-	LLTransientDockableFloater::onFocusLost();
+	super::onFocusLost();
 }
 
 void LLFloaterIMSessionTab::onInputEditorClicked()
@@ -426,53 +451,130 @@ void LLFloaterIMSessionTab::onInputEditorClicked()
 	gToolBarView->flashCommand(LLCommandId("chat"), false);
 }
 
+void LLFloaterIMSessionTab::onEmojiRecentPanelToggleBtnClicked()
+{
+    BOOL show = mEmojiRecentPanel->getVisible() ? FALSE : TRUE;
+    if (show)
+    {
+        initEmojiRecentPanel();
+    }
+
+    mEmojiRecentPanel->setVisible(show);
+    mInputEditor->setFocus(TRUE);
+}
+
+void LLFloaterIMSessionTab::onEmojiPickerShowBtnClicked()
+{
+    mInputEditor->setFocus(TRUE);
+    mInputEditor->showEmojiHelper();
+}
+
+void LLFloaterIMSessionTab::initEmojiRecentPanel()
+{
+    std::list<llwchar>& recentlyUsed = LLFloaterEmojiPicker::getRecentlyUsed();
+    if (recentlyUsed.empty())
+    {
+        mEmojiRecentEmptyText->setVisible(TRUE);
+        mEmojiRecentIconsCtrl->setVisible(FALSE);
+    }
+    else
+    {
+        LLWString emojis;
+        for (llwchar emoji : recentlyUsed)
+        {
+            emojis += emoji;
+        }
+        mEmojiRecentIconsCtrl->setEmojis(emojis);
+        mEmojiRecentEmptyText->setVisible(FALSE);
+        mEmojiRecentIconsCtrl->setVisible(TRUE);
+    }
+}
+
+void LLFloaterIMSessionTab::onRecentEmojiPicked(const LLSD& value)
+{
+	LLSD::String str = value.asString();
+	if (str.size())
+	{
+		LLWString wstr = utf8string_to_wstring(str);
+		if (wstr.size())
+		{
+			llwchar emoji = wstr[0];
+			mInputEditor->insertEmoji(emoji);
+		}
+	}
+}
+
+void LLFloaterIMSessionTab::closeFloater(bool app_quitting)
+{
+	LLFloaterEmojiPicker::saveState();
+	super::closeFloater(app_quitting);
+}
+
 std::string LLFloaterIMSessionTab::appendTime()
 {
-	time_t utc_time;
-	utc_time = time_corrected();
-	std::string timeStr ="["+ LLTrans::getString("TimeHour")+"]:["
-		+LLTrans::getString("TimeMin")+"]";
+	std::string timeStr = "[" + LLTrans::getString("TimeHour") + "]:"
+						  "[" + LLTrans::getString("TimeMin") + "]";
 
 	LLSD substitution;
-
-	substitution["datetime"] = (S32) utc_time;
-	LLStringUtil::format (timeStr, substitution);
+	substitution["datetime"] = (S32)time_corrected();
+	LLStringUtil::format(timeStr, substitution);
 
 	return timeStr;
 }
 
-void LLFloaterIMSessionTab::appendMessage(const LLChat& chat, const LLSD &args)
+void LLFloaterIMSessionTab::appendMessage(const LLChat& chat, const LLSD& args)
 {
+	if (chat.mMuted || !mChatHistory)
+		return;
 
 	// Update the participant activity time
 	LLFloaterIMContainer* im_box = LLFloaterIMContainer::findInstance();
 	if (im_box)
 	{
-		im_box->setTimeNow(mSessionID,chat.mFromID);
+		im_box->setTimeNow(mSessionID, chat.mFromID);
 	}
 	
-
 	LLChat& tmp_chat = const_cast<LLChat&>(chat);
 
-	if(tmp_chat.mTimeStr.empty())
+	if (tmp_chat.mTimeStr.empty())
 		tmp_chat.mTimeStr = appendTime();
 
-	if (!chat.mMuted)
-	{
-		tmp_chat.mFromName = chat.mFromName;
-		LLSD chat_args;
-		if (args) chat_args = args;
-		chat_args["use_plain_text_chat_history"] =
-				gSavedSettings.getBOOL("PlainTextChatHistory");
-		chat_args["show_time"] = gSavedSettings.getBOOL("IMShowTime");
-		chat_args["show_names_for_p2p_conv"] =
-				!mIsP2PChat || gSavedSettings.getBOOL("IMShowNamesForP2PConv");
-
-		if (mChatHistory)
-		{
-			mChatHistory->appendMessage(chat, chat_args);
-		}
-	}
+	tmp_chat.mFromName = chat.mFromName;
+
+	LLSD chat_args = args;
+	chat_args["use_plain_text_chat_history"] =
+			gSavedSettings.getBOOL("PlainTextChatHistory");
+	chat_args["show_time"] = gSavedSettings.getBOOL("IMShowTime");
+	chat_args["show_names_for_p2p_conv"] = !mIsP2PChat ||
+			gSavedSettings.getBOOL("IMShowNamesForP2PConv");
+
+	mChatHistory->appendMessage(chat, chat_args);
+}
+
+void LLFloaterIMSessionTab::updateUsedEmojis(LLWString text)
+{
+    LLEmojiDictionary* dictionary = LLEmojiDictionary::getInstance();
+    llassert_always(dictionary);
+
+    bool emojiSent = false;
+    for (llwchar& c : text)
+    {
+        if (dictionary->isEmoji(c))
+        {
+            LLFloaterEmojiPicker::onEmojiUsed(c);
+            emojiSent = true;
+        }
+    }
+
+    if (!emojiSent)
+        return;
+
+    LLFloaterEmojiPicker::saveState();
+
+    if (mEmojiRecentPanel->getVisible())
+    {
+        initEmojiRecentPanel();
+    }
 }
 
 static LLTrace::BlockTimerStatHandle FTM_BUILD_CONVERSATION_VIEW_PARTICIPANT("Build Conversation View");
@@ -502,10 +604,10 @@ void LLFloaterIMSessionTab::buildConversationViewParticipant()
 	while (current_participant_model != end_participant_model)
 	{
 		LLConversationItem* participant_model = dynamic_cast<LLConversationItem*>(*current_participant_model);
-        if (participant_model)
-        {
-            addConversationViewParticipant(participant_model);
-        }
+		if (participant_model)
+		{
+			addConversationViewParticipant(participant_model);
+		}
 		current_participant_model++;
 	}
 }
@@ -525,10 +627,10 @@ void LLFloaterIMSessionTab::addConversationViewParticipant(LLConversationItem* p
 	// If not already present, create the participant view and attach it to the root, otherwise, just refresh it
 	if (widget)
 	{
-        if (update_view)
-        {
-            updateConversationViewParticipant(uuid); // overkill?
-        }
+		if (update_view)
+		{
+			updateConversationViewParticipant(uuid); // overkill?
+		}
 	}
 	else
 	{
@@ -578,11 +680,11 @@ void LLFloaterIMSessionTab::refreshConversation()
 		{
 			participants_uuids.push_back(widget_it->first);
 		}
-        if (widget_it->second->getViewModelItem())
-        {
-            widget_it->second->refresh();
-            widget_it->second->setVisible(TRUE);
-        }
+		if (widget_it->second->getViewModelItem())
+		{
+			widget_it->second->refresh();
+			widget_it->second->setVisible(TRUE);
+		}
 		++widget_it;
 	}
 	if (is_ad_hoc || mIsP2PChat)
@@ -638,7 +740,7 @@ void LLFloaterIMSessionTab::refreshConversation()
 // Copied from LLFloaterIMContainer::createConversationViewParticipant(). Refactor opportunity!
 LLConversationViewParticipant* LLFloaterIMSessionTab::createConversationViewParticipant(LLConversationItem* item)
 {
-    LLRect panel_rect = mParticipantListPanel->getRect();
+	LLRect panel_rect = mParticipantListPanel->getRect();
 	
 	LLConversationViewParticipant::Params params;
 	params.name = item->getDisplayName();
@@ -766,7 +868,7 @@ void LLFloaterIMSessionTab::hideAllStandardButtons()
 void LLFloaterIMSessionTab::updateHeaderAndToolbar()
 {
 	// prevent start conversation before its container
-    LLFloaterIMContainer::getInstance();
+	LLFloaterIMContainer::getInstance();
 
 	bool is_not_torn_off = !checkIfTornOff();
 	if (is_not_torn_off)
@@ -783,12 +885,12 @@ void LLFloaterIMSessionTab::updateHeaderAndToolbar()
 			&& !mIsP2PChat;
 
 	mParticipantListAndHistoryStack->collapsePanel(mParticipantListPanel, !is_participant_list_visible);
-    mParticipantListPanel->setVisible(is_participant_list_visible);
+	mParticipantListPanel->setVisible(is_participant_list_visible);
 
 	// Display collapse image (<<) if the floater is hosted
 	// or if it is torn off but has an open control panel.
 	bool is_expanded = is_not_torn_off || is_participant_list_visible;
-    
+	
 	mExpandCollapseBtn->setImageOverlay(getString(is_expanded ? "collapse_icon" : "expand_icon"));
 	mExpandCollapseBtn->setToolTip(
 			is_not_torn_off?
@@ -817,10 +919,10 @@ void LLFloaterIMSessionTab::updateHeaderAndToolbar()
  
 void LLFloaterIMSessionTab::forceReshape()
 {
-    LLRect floater_rect = getRect();
-    reshape(llmax(floater_rect.getWidth(), this->getMinWidth()),
-    		llmax(floater_rect.getHeight(), this->getMinHeight()),
-    		true);
+	LLRect floater_rect = getRect();
+	reshape(llmax(floater_rect.getWidth(), this->getMinWidth()),
+			llmax(floater_rect.getHeight(), this->getMinHeight()),
+			true);
 }
 
 
@@ -846,7 +948,7 @@ void LLFloaterIMSessionTab::processChatHistoryStyleUpdate(bool clean_messages/*
 	LLFloaterIMNearbyChat* nearby_chat = LLFloaterReg::findTypedInstance<LLFloaterIMNearbyChat>("nearby_chat");
 	if (nearby_chat)
 	{
-             nearby_chat->reloadMessages(clean_messages);
+			 nearby_chat->reloadMessages(clean_messages);
 	}
 }
 
@@ -892,15 +994,15 @@ void LLFloaterIMSessionTab::onSlide(LLFloaterIMSessionTab* self)
 	{
 		if (!self->mIsP2PChat)
 		{
-            // The state must toggle the collapsed state of the panel
-           should_be_expanded = self->mParticipantListPanel->isCollapsed();
+			// The state must toggle the collapsed state of the panel
+			should_be_expanded = self->mParticipantListPanel->isCollapsed();
 
 			// Update the expand/collapse flag of the participant list panel and save it
-            gSavedSettings.setBOOL("IMShowControlPanel", should_be_expanded);
-            self->mIsParticipantListExpanded = should_be_expanded;
-            
-            // Refresh for immediate feedback
-            self->refreshConversation();
+			gSavedSettings.setBOOL("IMShowControlPanel", should_be_expanded);
+			self->mIsParticipantListExpanded = should_be_expanded;
+
+			// Refresh for immediate feedback
+			self->refreshConversation();
 		}
 	}
 
@@ -937,12 +1039,12 @@ void LLFloaterIMSessionTab::reshapeFloater(bool collapse)
 			+ mChatLayoutPanel->getRect().getHeight() - mChatLayoutPanelHeight + 2;
 		floater_rect.mTop -= height;
 
-        setResizeLimits(getMinWidth(), floater_rect.getHeight());
+		setResizeLimits(getMinWidth(), floater_rect.getHeight());
 	}
 	else
 	{
 		floater_rect.mTop = floater_rect.mBottom + mFloaterHeight;
-        setResizeLimits(getMinWidth(), mMinFloaterHeight);
+		setResizeLimits(getMinWidth(), mMinFloaterHeight);
 	}
 
 	enableResizeCtrls(true, true, !collapse);
@@ -967,7 +1069,7 @@ void LLFloaterIMSessionTab::restoreFloater()
 		setShape(floater_rect, true);
 		mBodyStack->updateLayout();
 		mExpandCollapseLineBtn->setImageOverlay(getString("expandline_icon"));
-        setResizeLimits(getMinWidth(), mMinFloaterHeight);
+		setResizeLimits(getMinWidth(), mMinFloaterHeight);
 		setMessagePaneExpanded(true);
 		saveCollapsedState();
 		mInputEditor->enableSingleLineMode(false);
@@ -995,8 +1097,8 @@ void LLFloaterIMSessionTab::onTearOffClicked()
 {
 	restoreFloater();
 	setFollows(isTornOff()? FOLLOWS_ALL : FOLLOWS_NONE);
-    mSaveRect = isTornOff();
-    initRectControl();
+	mSaveRect = isTornOff();
+	initRectControl();
 	LLFloater::onClickTearOff(this);
 	LLFloaterIMContainer* container = LLFloaterReg::findTypedInstance<LLFloaterIMContainer>("im_container");
 
@@ -1086,8 +1188,8 @@ bool LLFloaterIMSessionTab::checkIfTornOff()
 void LLFloaterIMSessionTab::doToSelected(const LLSD& userdata)
 {
 	// Get the list of selected items in the tab
-    std::string command = userdata.asString();
-    uuid_vec_t selected_uuids;
+	std::string command = userdata.asString();
+	uuid_vec_t selected_uuids;
 	getSelectedUUIDs(selected_uuids);
 		
 	// Perform the command (IM, profile, etc...) on the list using the general conversation container method
@@ -1099,8 +1201,8 @@ void LLFloaterIMSessionTab::doToSelected(const LLSD& userdata)
 bool LLFloaterIMSessionTab::enableContextMenuItem(const LLSD& userdata)
 {
 	// Get the list of selected items in the tab
-    std::string command = userdata.asString();
-    uuid_vec_t selected_uuids;
+	std::string command = userdata.asString();
+	uuid_vec_t selected_uuids;
 	getSelectedUUIDs(selected_uuids);
 	
 	// Perform the item enable test on the list using the general conversation container method
@@ -1111,8 +1213,8 @@ bool LLFloaterIMSessionTab::enableContextMenuItem(const LLSD& userdata)
 bool LLFloaterIMSessionTab::checkContextMenuItem(const LLSD& userdata)
 {
 	// Get the list of selected items in the tab
-    std::string command = userdata.asString();
-    uuid_vec_t selected_uuids;
+	std::string command = userdata.asString();
+	uuid_vec_t selected_uuids;
 	getSelectedUUIDs(selected_uuids);
 	
 	// Perform the item check on the list using the general conversation container method
@@ -1122,19 +1224,19 @@ bool LLFloaterIMSessionTab::checkContextMenuItem(const LLSD& userdata)
 
 void LLFloaterIMSessionTab::getSelectedUUIDs(uuid_vec_t& selected_uuids)
 {
-    const std::set<LLFolderViewItem*> selected_items = mConversationsRoot->getSelectionList();
+	const std::set<LLFolderViewItem*> selected_items = mConversationsRoot->getSelectionList();
 	
-    std::set<LLFolderViewItem*>::const_iterator it = selected_items.begin();
-    const std::set<LLFolderViewItem*>::const_iterator it_end = selected_items.end();
+	std::set<LLFolderViewItem*>::const_iterator it = selected_items.begin();
+	const std::set<LLFolderViewItem*>::const_iterator it_end = selected_items.end();
 	
-    for (; it != it_end; ++it)
-    {
-        LLConversationItem* conversation_item = static_cast<LLConversationItem *>((*it)->getViewModelItem());
-        if (conversation_item)
-        {
-            selected_uuids.push_back(conversation_item->getUUID());
-        }
-    }
+	for (; it != it_end; ++it)
+	{
+		LLConversationItem* conversation_item = static_cast<LLConversationItem *>((*it)->getViewModelItem());
+		if (conversation_item)
+		{
+			selected_uuids.push_back(conversation_item->getUUID());
+		}
+	}
 }
 
 LLConversationItem* LLFloaterIMSessionTab::getCurSelectedViewModelItem()
@@ -1142,8 +1244,8 @@ LLConversationItem* LLFloaterIMSessionTab::getCurSelectedViewModelItem()
 	LLConversationItem *conversationItem = NULL;
 
 	if(mConversationsRoot && 
-        mConversationsRoot->getCurSelectedItem() && 
-        mConversationsRoot->getCurSelectedItem()->getViewModelItem())
+		mConversationsRoot->getCurSelectedItem() && 
+		mConversationsRoot->getCurSelectedItem()->getViewModelItem())
 	{
 		conversationItem = static_cast<LLConversationItem *>(mConversationsRoot->getCurSelectedItem()->getViewModelItem()) ;
 	}
diff --git a/indra/newview/llfloaterimsessiontab.h b/indra/newview/llfloaterimsessiontab.h
index d478922617..cc985b2753 100644
--- a/indra/newview/llfloaterimsessiontab.h
+++ b/indra/newview/llfloaterimsessiontab.h
@@ -41,10 +41,12 @@
 class LLPanelChatControlPanel;
 class LLChatEntry;
 class LLChatHistory;
+class LLPanelEmojiComplete;
 
 class LLFloaterIMSessionTab
 	: public LLTransientDockableFloater
 {
+	using super = LLTransientDockableFloater;
 
 public:
 	LOG_CLASS(LLFloaterIMSessionTab);
@@ -68,9 +70,8 @@ public:
 	bool isHostAttached() {return mIsHostAttached;}
 	void setHostAttached(bool is_attached) {mIsHostAttached = is_attached;}
 
-    static LLFloaterIMSessionTab* findConversation(const LLUUID& uuid);
-    static LLFloaterIMSessionTab* getConversation(const LLUUID& uuid);
-
+	static LLFloaterIMSessionTab* findConversation(const LLUUID& uuid);
+	static LLFloaterIMSessionTab* getConversation(const LLUUID& uuid);
 
 	bool isNearbyChat() {return mIsNearbyChat;}
 
@@ -80,6 +81,7 @@ public:
 	/*virtual*/ void draw();
 	/*virtual*/ void setVisible(BOOL visible);
 	/*virtual*/ void setFocus(BOOL focus);
+	/*virtual*/ void closeFloater(bool app_quitting = false);
 	
 	// Handle the left hand participant list widgets
 	void addConversationViewParticipant(LLConversationItem* item, bool update_view = true);
@@ -136,15 +138,17 @@ protected:
 	virtual void enableDisableCallBtn();
 
 	// process focus events to set a currently active session
-	/* virtual */ void onFocusLost();
 	/* virtual */ void onFocusReceived();
+	/* virtual */ void onFocusLost();
 
 	// prepare chat's params and out one message to chatHistory
-	void appendMessage(const LLChat& chat, const LLSD &args = 0);
+	void appendMessage(const LLChat& chat, const LLSD& args = LLSD());
 
 	std::string appendTime();
 	void assignResizeLimits();
 
+	void updateUsedEmojis(LLWString text);
+
 	S32  mFloaterExtraWidth;
 
 	bool mIsNearbyChat;
@@ -152,8 +156,7 @@ protected:
 
 	bool mMessagePaneExpanded;
 	bool mIsParticipantListExpanded;
-    S32 mMinFloaterHeight;
-
+	S32 mMinFloaterHeight;
 
 	LLIMModel::LLIMSession* mSession;
 
@@ -168,32 +171,37 @@ protected:
 	LLLayoutPanel* mContentPanel;
 	LLLayoutPanel* mToolbarPanel;
 	LLLayoutPanel* mInputButtonPanel;
+	LLLayoutPanel* mEmojiRecentPanel;
+	LLTextBox* mEmojiRecentEmptyText;
+	LLPanelEmojiComplete* mEmojiRecentIconsCtrl;
 	LLParticipantList* getParticipantList();
 	conversations_widgets_map mConversationsWidgets;
 	LLConversationViewModel mConversationViewModel;
 	LLFolderView* mConversationsRoot;
 	LLScrollContainer* mScroller;
 
-    LLChatHistory* mChatHistory;
+	LLChatHistory* mChatHistory;
 	LLChatEntry* mInputEditor;
-	LLLayoutPanel * mChatLayoutPanel;
-	LLLayoutStack * mInputPanels;
+	LLLayoutPanel* mChatLayoutPanel;
+	LLLayoutStack* mInputPanels;
 	
 	LLButton* mExpandCollapseLineBtn;
 	LLButton* mExpandCollapseBtn;
 	LLButton* mTearOffBtn;
+	LLButton* mEmojiRecentPanelToggleBtn;
+	LLButton* mEmojiPickerShowBtn;
 	LLButton* mCloseBtn;
 	LLButton* mGearBtn;
 	LLButton* mAddBtn;
-    LLButton* mVoiceButton;
+	LLButton* mVoiceButton;
 
 private:
 	// Handling selection and contextual menu
-    void doToSelected(const LLSD& userdata);
-    bool enableContextMenuItem(const LLSD& userdata);
-    bool checkContextMenuItem(const LLSD& userdata);
+	void doToSelected(const LLSD& userdata);
+	bool enableContextMenuItem(const LLSD& userdata);
+	bool checkContextMenuItem(const LLSD& userdata);
 	
-    void getSelectedUUIDs(uuid_vec_t& selected_uuids);
+	void getSelectedUUIDs(uuid_vec_t& selected_uuids);
 	
 	/// Refreshes the floater at a constant rate.
 	virtual void refresh() = 0;
@@ -207,9 +215,14 @@ private:
 
 	void onInputEditorClicked();
 
+	void onEmojiRecentPanelToggleBtnClicked();
+	void onEmojiPickerShowBtnClicked();
+	void initEmojiRecentPanel();
+	void onRecentEmojiPicked(const LLSD& value);
+
 	bool checkIfTornOff();
-    bool mIsHostAttached;
-    bool mHasVisibleBeenInitialized;
+	bool mIsHostAttached;
+	bool mHasVisibleBeenInitialized;
 
 	LLTimer* mRefreshTimer; ///< Defines the rate at which refresh() is called.
 
diff --git a/indra/newview/llfloateruipreview.cpp b/indra/newview/llfloateruipreview.cpp
index 67a205417e..db69c3e2c3 100644
--- a/indra/newview/llfloateruipreview.cpp
+++ b/indra/newview/llfloateruipreview.cpp
@@ -1601,7 +1601,7 @@ void LLOverlapPanel::draw()
 		LLUI::translate(5,getRect().getHeight()-20);	// translate to top-5,left-5
 		LLView::sDrawPreviewHighlights = FALSE;
 		LLFontGL::getFontSansSerifSmall()->renderUTF8(current_selection_text, 0, 0, 0, text_color,
-				LLFontGL::LEFT, LLFontGL::BASELINE, LLFontGL::NORMAL, LLFontGL::NO_SHADOW, S32_MAX, S32_MAX, NULL, FALSE);
+				LLFontGL::LEFT, LLFontGL::BASELINE, LLFontGL::NORMAL, LLFontGL::NO_SHADOW);
 	}
 	else
 	{
@@ -1619,7 +1619,7 @@ void LLOverlapPanel::draw()
 			std::string current_selection = std::string(current_selection_text + LLView::sPreviewClickedElement->getName() + " (no elements overlap)");
 			S32 text_width = LLFontGL::getFontSansSerifSmall()->getWidth(current_selection) + 10;
 			LLFontGL::getFontSansSerifSmall()->renderUTF8(current_selection, 0, 0, 0, text_color,
-					LLFontGL::LEFT, LLFontGL::BASELINE, LLFontGL::NORMAL, LLFontGL::NO_SHADOW, S32_MAX, S32_MAX, NULL, FALSE);
+					LLFontGL::LEFT, LLFontGL::BASELINE, LLFontGL::NORMAL, LLFontGL::NO_SHADOW);
 			// widen panel enough to fit this text
 			LLRect rect = getRect();
 			setRect(LLRect(rect.mLeft,rect.mTop,rect.getWidth() < text_width ? rect.mLeft + text_width : rect.mRight,rect.mTop));
@@ -1685,7 +1685,7 @@ void LLOverlapPanel::draw()
 		// draw currently-selected element at top of overlappers
 		LLUI::translate(0,-mSpacing);
 		LLFontGL::getFontSansSerifSmall()->renderUTF8(current_selection_text + LLView::sPreviewClickedElement->getName(), 0, 0, 0, text_color,
-				LLFontGL::LEFT, LLFontGL::BASELINE, LLFontGL::NORMAL, LLFontGL::NO_SHADOW, S32_MAX, S32_MAX, NULL, FALSE);
+				LLFontGL::LEFT, LLFontGL::BASELINE, LLFontGL::NORMAL, LLFontGL::NO_SHADOW);
 		LLUI::translate(0,-mSpacing-LLView::sPreviewClickedElement->getRect().getHeight());	// skip spacing distance + height
 		LLView::sPreviewClickedElement->draw();
 
@@ -1700,7 +1700,7 @@ void LLOverlapPanel::draw()
 			// draw name
 			LLUI::translate(0,-mSpacing);
 			LLFontGL::getFontSansSerifSmall()->renderUTF8(overlapper_text + viewp->getName(), 0, 0, 0, text_color,
-					LLFontGL::LEFT, LLFontGL::BASELINE, LLFontGL::NORMAL, LLFontGL::NO_SHADOW, S32_MAX, S32_MAX, NULL, FALSE);
+					LLFontGL::LEFT, LLFontGL::BASELINE, LLFontGL::NORMAL, LLFontGL::NO_SHADOW);
 
 			// draw element
 			LLUI::translate(0,-mSpacing-viewp->getRect().getHeight());	// skip spacing distance + height
diff --git a/indra/newview/llfriendcard.h b/indra/newview/llfriendcard.h
index f5679d7d85..ef0dda7949 100644
--- a/indra/newview/llfriendcard.h
+++ b/indra/newview/llfriendcard.h
@@ -55,7 +55,7 @@ public:
     };
 
 	// LLFriendObserver implementation
-	void changed(U32 mask)
+	void changed(U32 mask) override
 	{
 		onFriendListUpdate(mask);
 	}
diff --git a/indra/newview/llgesturemgr.h b/indra/newview/llgesturemgr.h
index 7c8e8279c2..7bb60f00e2 100644
--- a/indra/newview/llgesturemgr.h
+++ b/indra/newview/llgesturemgr.h
@@ -135,7 +135,7 @@ public:
 	void notifyObservers();
 
 	// Overriding so we can update active gesture names and notify observers 
-	void changed(U32 mask); 
+	void changed(U32 mask) override;
 
 	BOOL matchPrefix(const std::string& in_str, std::string* out_str);
 
@@ -150,7 +150,7 @@ protected:
 	void runStep(LLMultiGesture* gesture, LLGestureStep* step);
 
 	// LLInventoryCompletionObserver trigger
-	void done();
+	void done() override;
 
 	// Used by loadGesture
 	static void onLoadComplete(const LLUUID& asset_uuid,
diff --git a/indra/newview/llhudrender.cpp b/indra/newview/llhudrender.cpp
index dff310ecf9..c1f17c9d33 100644
--- a/indra/newview/llhudrender.cpp
+++ b/indra/newview/llhudrender.cpp
@@ -138,7 +138,7 @@ void hud_render_text(const LLWString &wstr, const LLVector3 &pos_agent,
 	LLUI::translate((F32) winX*1.0f/LLFontGL::sScaleX, (F32) winY*1.0f/(LLFontGL::sScaleY), -(((F32) winZ*2.f)-1.f));
 	F32 right_x;
 	
-	font.render(wstr, 0, 0, 1, color, LLFontGL::LEFT, LLFontGL::BASELINE, style, shadow, wstr.length(), 1000, &right_x);
+	font.render(wstr, 0, 0, 1, color, LLFontGL::LEFT, LLFontGL::BASELINE, style, shadow, wstr.length(), 1000, &right_x, /*use_ellipses*/false, /*use_color*/true);
 
 	LLUI::popMatrix();
 	gGL.popMatrix();
diff --git a/indra/newview/llimagefiltersmanager.h b/indra/newview/llimagefiltersmanager.h
index d06212d85a..05d1806da4 100644
--- a/indra/newview/llimagefiltersmanager.h
+++ b/indra/newview/llimagefiltersmanager.h
@@ -45,7 +45,7 @@ private:
 	void loadAllFilters();
 	void loadFiltersFromDir(const std::string& dir);
     
-	/*virtual*/ void initSingleton();
+	/*virtual*/ void initSingleton() override;
     
 	// List of filters : first is the user friendly localized name, second is the xml file name
     std::map<std::string,std::string> mFiltersList;
diff --git a/indra/newview/llimview.h b/indra/newview/llimview.h
index 946eb02f26..bace97d37a 100644
--- a/indra/newview/llimview.h
+++ b/indra/newview/llimview.h
@@ -537,7 +537,7 @@ public:
 	static void onVoiceChannelStateChanged(const LLVoiceChannel::EState& old_state, const LLVoiceChannel::EState& new_state, const LLVoiceChannel::EDirection& direction, bool ended_by_agent);
 
 private:
-	void initSingleton();
+	void initSingleton() override;
 	void onVoiceChannelChangedInt(const LLUUID &session_id);
 	void onVoiceChannelStateChangedInt(const LLVoiceChannel::EState& old_state, const LLVoiceChannel::EState& new_state, const LLVoiceChannel::EDirection& direction, bool ended_by_agent);
 
diff --git a/indra/newview/llinventorygallery.cpp b/indra/newview/llinventorygallery.cpp
index 68581d04eb..d4ca58f778 100644
--- a/indra/newview/llinventorygallery.cpp
+++ b/indra/newview/llinventorygallery.cpp
@@ -2402,11 +2402,17 @@ void LLInventoryGallery::startDrag()
 {
     std::vector<EDragAndDropType> types;
     uuid_vec_t ids;
+    LLToolDragAndDrop::ESource src = LLToolDragAndDrop::SOURCE_AGENT;
     for (LLUUID& selected_id : mSelectedItemIDs)
     {
         const LLInventoryItem* item = gInventory.getItem(selected_id);
         if (item)
         {
+            if (item->getPermissions().getOwner() == ALEXANDRIA_LINDEN_ID)
+            {
+                src = LLToolDragAndDrop::SOURCE_LIBRARY;
+            }
+
             EDragAndDropType type = LLViewerAssetType::lookupDragAndDropType(item->getType());
             types.push_back(type);
             ids.push_back(selected_id);
@@ -2416,12 +2422,17 @@ void LLInventoryGallery::startDrag()
         if (cat && gInventory.isObjectDescendentOf(selected_id, gInventory.getRootFolderID())
             && !LLFolderType::lookupIsProtectedType((cat)->getPreferredType()))
         {
+            if (cat->getOwnerID() == ALEXANDRIA_LINDEN_ID)
+            {
+                src = LLToolDragAndDrop::SOURCE_LIBRARY;
+            }
+
             EDragAndDropType type = LLViewerAssetType::lookupDragAndDropType(cat->getType());
             types.push_back(type);
             ids.push_back(selected_id);
         }
     }
-    LLToolDragAndDrop::getInstance()->beginMultiDrag(types, ids, LLToolDragAndDrop::SOURCE_AGENT);
+    LLToolDragAndDrop::getInstance()->beginMultiDrag(types, ids, src);
 }
 
 bool LLInventoryGallery::areViewsInitialized()
diff --git a/indra/newview/llmutelist.h b/indra/newview/llmutelist.h
index 14840f1b2e..dda407e708 100644
--- a/indra/newview/llmutelist.h
+++ b/indra/newview/llmutelist.h
@@ -73,7 +73,7 @@ class LLMuteList : public LLSingleton<LLMuteList>
 {
 	LLSINGLETON(LLMuteList);
 	~LLMuteList();
-	/*virtual*/ void cleanupSingleton();
+	/*virtual*/ void cleanupSingleton() override;
 public:
 	// reasons for auto-unmuting a resident
 	enum EAutoReason 
diff --git a/indra/newview/llnavigationbar.h b/indra/newview/llnavigationbar.h
index 11c671294a..4649f5bcb0 100755
--- a/indra/newview/llnavigationbar.h
+++ b/indra/newview/llnavigationbar.h
@@ -92,10 +92,10 @@ class LLNavigationBar
 
 public:
 	
-	/*virtual*/ void	draw();
-	/*virtual*/ BOOL handleRightMouseDown(S32 x, S32 y, MASK mask);
-	/*virtual*/ BOOL	postBuild();
-	/*virtual*/ void	setVisible(BOOL visible);
+	/*virtual*/ void	draw() override;
+	/*virtual*/ BOOL handleRightMouseDown(S32 x, S32 y, MASK mask) override;
+	/*virtual*/ BOOL	postBuild() override;
+	/*virtual*/ void	setVisible(BOOL visible) override;
 
 	void handleLoginComplete();
 	void clearHistoryCache();
diff --git a/indra/newview/lloutfitobserver.h b/indra/newview/lloutfitobserver.h
index 2f136d48e8..56f2ceb8b1 100644
--- a/indra/newview/lloutfitobserver.h
+++ b/indra/newview/lloutfitobserver.h
@@ -40,7 +40,7 @@ class LLOutfitObserver: public LLInventoryObserver, public LLSingleton<LLOutfitO
 
 public:
 
-	virtual void changed(U32 mask);
+	virtual void changed(U32 mask) override;
 
 	void notifyOutfitLockChanged() { mOutfitLockChanged();  }
 
diff --git a/indra/newview/llpanelemojicomplete.cpp b/indra/newview/llpanelemojicomplete.cpp
new file mode 100644
index 0000000000..e6e3a10e13
--- /dev/null
+++ b/indra/newview/llpanelemojicomplete.cpp
@@ -0,0 +1,579 @@
+/**
+* @file llpanelemojicomplete.h
+* @brief Header file for LLPanelEmojiComplete
+*
+* $LicenseInfo:firstyear=2012&license=lgpl$
+* Second Life Viewer Source Code
+* Copyright (C) 2011, 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
+* $/LicenseInfo$
+*/
+
+#include "llviewerprecompiledheaders.h"
+
+#include "llemojidictionary.h"
+#include "llemojihelper.h"
+#include "llpanelemojicomplete.h"
+#include "llscrollbar.h"
+#include "lluictrlfactory.h"
+
+constexpr U32 MIN_MOUSE_MOVE_DELTA = 4;
+constexpr U32 MIN_SHORT_CODE_WIDTH = 100;
+constexpr U32 DEF_PADDING = 8;
+
+// ============================================================================
+// LLPanelEmojiComplete
+//
+
+static LLDefaultChildRegistry::Register<LLPanelEmojiComplete> r("emoji_complete");
+
+LLPanelEmojiComplete::Params::Params()
+    : autosize("autosize")
+    , noscroll("noscroll")
+    , vertical("vertical")
+    , max_visible("max_visible")
+    , padding("padding", DEF_PADDING)
+    , selected_image("selected_image")
+{
+}
+
+LLPanelEmojiComplete::LLPanelEmojiComplete(const LLPanelEmojiComplete::Params& p)
+    : LLUICtrl(p)
+    , mAutoSize(p.autosize)
+    , mNoScroll(p.noscroll)
+    , mVertical(p.vertical)
+    , mMaxVisible(p.max_visible)
+    , mPadding(p.padding)
+    , mSelectedImage(p.selected_image)
+    , mIconFont(LLFontGL::getFontEmojiHuge())
+    , mTextFont(LLFontGL::getFontSansSerifBig())
+    , mScrollbar(nullptr)
+{
+    if (mVertical)
+    {
+        LLScrollbar::Params sbparams;
+        sbparams.orientation(LLScrollbar::VERTICAL);
+        sbparams.change_callback([this](S32 index, LLScrollbar*) { onScrollbarChange(index); });
+        mScrollbar = LLUICtrlFactory::create<LLScrollbar>(sbparams);
+        addChild(mScrollbar);
+    }
+}
+
+LLPanelEmojiComplete::~LLPanelEmojiComplete()
+{
+}
+
+void LLPanelEmojiComplete::draw()
+{
+    LLUICtrl::draw();
+
+    if (!mTotalEmojis)
+        return;
+
+    const size_t firstVisibleIdx = mScrollPos;
+    const size_t lastVisibleIdx = llmin(mScrollPos + mVisibleEmojis, mTotalEmojis);
+
+    if (mCurSelected >= firstVisibleIdx && mCurSelected < lastVisibleIdx)
+    {
+        S32 x, y, width, height;
+        if (mVertical)
+        {
+            x = mRenderRect.mLeft;
+            y = mRenderRect.mTop - (mCurSelected - firstVisibleIdx + 1) * mEmojiHeight;
+            width = mRenderRect.getWidth();
+            height = mEmojiHeight;
+        }
+        else
+        {
+            x = mRenderRect.mLeft + (mCurSelected - firstVisibleIdx) * mEmojiWidth;
+            y = mRenderRect.mBottom;
+            width = mEmojiWidth;
+            height = mRenderRect.getHeight();
+        }
+        mSelectedImage->draw(x, y, width, height);
+    }
+
+    F32 iconCenterX = mRenderRect.mLeft + (F32)mEmojiWidth / 2;
+    F32 iconCenterY = mRenderRect.mTop - (F32)mEmojiHeight / 2;
+    F32 textLeft = mVertical ? mRenderRect.mLeft + mEmojiWidth + mPadding : 0;
+    F32 textWidth = mVertical ? getRect().getWidth() - textLeft - mPadding : 0;
+
+    for (U32 curIdx = firstVisibleIdx; curIdx < lastVisibleIdx; curIdx++)
+    {
+        LLWString text(1, mEmojis[curIdx].Character);
+        mIconFont->render(text, 0, iconCenterX, iconCenterY,
+            LLColor4::white, LLFontGL::HCENTER, LLFontGL::VCENTER, LLFontGL::NORMAL,
+            LLFontGL::DROP_SHADOW_SOFT, 1);
+        if (mVertical)
+        {
+            const std::string& shortCode = mEmojis[curIdx].String;
+            F32 x0 = textLeft;
+            F32 x1 = textWidth;
+            if (mEmojis[curIdx].Begin)
+            {
+                std::string text = shortCode.substr(0, mEmojis[curIdx].Begin);
+                mTextFont->renderUTF8(text, 0, x0, iconCenterY, LLColor4::white,
+                    LLFontGL::LEFT, LLFontGL::VCENTER, LLFontGL::NORMAL, LLFontGL::NO_SHADOW,
+                    text.size(), x1);
+                x0 += mTextFont->getWidthF32(text);
+                x1 = textLeft + textWidth - x0;
+            }
+            if (x1 > 0 && mEmojis[curIdx].End > mEmojis[curIdx].Begin)
+            {
+                std::string text = shortCode.substr(mEmojis[curIdx].Begin, mEmojis[curIdx].End - mEmojis[curIdx].Begin);
+                mTextFont->renderUTF8(text, 0, x0, iconCenterY, LLColor4::yellow6,
+                    LLFontGL::LEFT, LLFontGL::VCENTER, LLFontGL::NORMAL, LLFontGL::NO_SHADOW,
+                    text.size(), x1);
+                x0 += mTextFont->getWidthF32(text);
+                x1 = textLeft + textWidth - x0;
+            }
+            if (x1 > 0 && mEmojis[curIdx].End < shortCode.size())
+            {
+                std::string text = shortCode.substr(mEmojis[curIdx].End);
+                mTextFont->renderUTF8(text, 0, x0, iconCenterY, LLColor4::white,
+                    LLFontGL::LEFT, LLFontGL::VCENTER, LLFontGL::NORMAL, LLFontGL::NO_SHADOW,
+                    text.size(), x1);
+            }
+            iconCenterY -= mEmojiHeight;
+        }
+        else
+        {
+            iconCenterX += mEmojiWidth;
+        }
+    }
+}
+
+BOOL LLPanelEmojiComplete::handleHover(S32 x, S32 y, MASK mask)
+{
+    if (mScrollbar && mScrollbar->getVisible() && childrenHandleHover(x, y, mask))
+        return TRUE;
+
+    LLVector2 curHover(x, y);
+    if ((mLastHover - curHover).lengthSquared() > MIN_MOUSE_MOVE_DELTA)
+    {
+        size_t index = posToIndex(x, y);
+        if (index < mTotalEmojis)
+            mCurSelected = index;
+        mLastHover = curHover;
+    }
+
+    return TRUE;
+}
+
+BOOL LLPanelEmojiComplete::handleKey(KEY key, MASK mask, BOOL called_from_parent)
+{
+    bool handled = false;
+    if (mTotalEmojis && MASK_NONE == mask)
+    {
+        switch (key)
+        {
+        case KEY_HOME:
+            select(0);
+            handled = true;
+            break;
+
+        case KEY_END:
+            select(mTotalEmojis - 1);
+            handled = true;
+            break;
+
+        case KEY_PAGE_DOWN:
+            select(mCurSelected + mVisibleEmojis - 1);
+            handled = true;
+            break;
+
+        case KEY_PAGE_UP:
+            select(mCurSelected - llmin(mCurSelected, mVisibleEmojis + 1));
+            handled = true;
+            break;
+
+        case KEY_LEFT:
+        case KEY_UP:
+            selectPrevious();
+            handled = true;
+            break;
+
+        case KEY_RIGHT:
+        case KEY_DOWN:
+            selectNext();
+            handled = true;
+            break;
+
+        case KEY_RETURN:
+            onCommit();
+            handled = true;
+            break;
+        }
+    }
+
+    if (handled)
+    {
+        return TRUE;
+    }
+
+    return LLUICtrl::handleKey(key, mask, called_from_parent);
+}
+
+BOOL LLPanelEmojiComplete::handleMouseDown(S32 x, S32 y, MASK mask)
+{
+    if (mScrollbar && mScrollbar->getVisible() && childrenHandleMouseDown(x, y, mask))
+        return TRUE;
+
+    mCurSelected = posToIndex(x, y);
+    mLastHover = LLVector2(x, y);
+
+    return TRUE;
+}
+
+BOOL LLPanelEmojiComplete::handleMouseUp(S32 x, S32 y, MASK mask)
+{
+    if (mScrollbar && mScrollbar->getVisible() && childrenHandleMouseUp(x, y, mask))
+        return TRUE;
+
+    mCurSelected = posToIndex(x, y);
+    onCommit();
+
+    return TRUE;
+}
+
+BOOL LLPanelEmojiComplete::handleScrollWheel(S32 x, S32 y, S32 clicks)
+{
+    if (mNoScroll)
+        return FALSE;
+
+    if (mScrollbar && mScrollbar->getVisible() && mScrollbar->handleScrollWheel(x, y, clicks))
+    {
+        mCurSelected = posToIndex(x, y);
+        return TRUE;
+    }
+
+    if (mTotalEmojis > mVisibleEmojis)
+    {
+        // In case of wheel up (clicks < 0) we shouldn't subtract more than value of mScrollPos
+        // Example: if mScrollPos = 0, clicks = -1 then (mScrollPos + clicks) becomes SIZE_MAX
+        // As a result of llclamp<size_t>() mScrollPos becomes (mTotalEmojis - mVisibleEmojis)
+        S32 newScrollPos = llmax(0, (S32)mScrollPos + clicks);
+        mScrollPos = llclamp<size_t>((size_t)newScrollPos, 0, mTotalEmojis - mVisibleEmojis);
+        mCurSelected = posToIndex(x, y);
+        return TRUE;
+    }
+
+    return FALSE;
+}
+
+void LLPanelEmojiComplete::onCommit()
+{
+    if (mCurSelected < mTotalEmojis)
+    {
+        LLSD value(wstring_to_utf8str(LLWString(1, mEmojis[mCurSelected].Character)));
+        setValue(value);
+        LLUICtrl::onCommit();
+    }
+}
+
+void LLPanelEmojiComplete::reshape(S32 width, S32 height, BOOL called_from_parent)
+{
+    LLUICtrl::reshape(width, height, called_from_parent);
+    if (mAutoSize)
+    {
+        updateConstraints();
+    }
+    else
+    {
+        onEmojisChanged();
+    }
+}
+
+void LLPanelEmojiComplete::setEmojis(const LLWString& emojis)
+{
+    mEmojis.clear();
+
+    auto& emoji2descr = LLEmojiDictionary::instance().getEmoji2Descr();
+    for (const llwchar& emoji : emojis)
+    {
+        std::string shortCode;
+        if (mVertical)
+        {
+            auto it = emoji2descr.find(emoji);
+            if (it != emoji2descr.end() && !it->second->ShortCodes.empty())
+            {
+                shortCode = it->second->ShortCodes.front();
+            }
+        }
+        mEmojis.emplace_back(emoji, shortCode, 0, 0);
+    }
+
+    mTotalEmojis = mEmojis.size();
+    mCurSelected = 0;
+
+    onEmojisChanged();
+}
+
+void LLPanelEmojiComplete::setEmojiHint(const std::string& hint)
+{
+    llwchar curEmoji = mCurSelected < mTotalEmojis ? mEmojis[mCurSelected].Character : 0;
+
+    LLEmojiDictionary::instance().findByShortCode(mEmojis, hint);
+    mTotalEmojis = mEmojis.size();
+
+    mCurSelected = 0;
+    for (size_t i = 1; i < mTotalEmojis; ++i)
+    {
+        if (mEmojis[i].Character == curEmoji)
+        {
+            mCurSelected = i;
+            break;
+        }
+    }
+
+    onEmojisChanged();
+}
+
+U32 LLPanelEmojiComplete::getMaxShortCodeWidth() const
+{
+    U32 max_width = 0;
+    for (const LLEmojiSearchResult& result : mEmojis)
+    {
+        S32 width = mTextFont->getWidth(result.String);
+        if (width > max_width)
+        {
+            max_width = width;
+        }
+    }
+    return max_width;
+}
+
+void LLPanelEmojiComplete::onEmojisChanged()
+{
+    if (mAutoSize)
+    {
+        S32 width, height;
+        mVisibleEmojis = llmin(mTotalEmojis, mMaxVisible);
+        if (mVertical)
+        {
+            U32 maxShortCodeWidth = getMaxShortCodeWidth();
+            U32 shortCodeWidth = llmax(maxShortCodeWidth, MIN_SHORT_CODE_WIDTH);
+            width = mEmojiWidth + shortCodeWidth + mPadding * 2;
+            if (!mNoScroll && mVisibleEmojis < mTotalEmojis)
+            {
+                width += mScrollbar->getThickness();
+            }
+            height = mVisibleEmojis * mEmojiHeight;
+        }
+        else
+        {
+            width = mVisibleEmojis * mEmojiWidth;
+            height = getRect().getHeight();
+        }
+        LLUICtrl::reshape(width, height, false);
+    }
+    else
+    {
+        mVisibleEmojis = mVertical ?
+            mEmojiHeight ? getRect().getHeight() / mEmojiHeight : 0 :
+            mEmojiWidth ? getRect().getWidth() / mEmojiWidth : 0;
+    }
+
+    updateConstraints();
+}
+
+void LLPanelEmojiComplete::onScrollbarChange(S32 index)
+{
+    mScrollPos = llclamp<size_t>(index, 0, mTotalEmojis - mVisibleEmojis);
+}
+
+size_t LLPanelEmojiComplete::posToIndex(S32 x, S32 y) const
+{
+    if (mRenderRect.pointInRect(x, y))
+    {
+        U32 pos = mVertical ? (U32)(mRenderRect.mTop - y) / mEmojiHeight : x / mEmojiWidth;
+        return llmin(mScrollPos + pos, mTotalEmojis - 1);
+    }
+    return std::string::npos;
+}
+
+void LLPanelEmojiComplete::select(size_t emoji_idx)
+{
+    mCurSelected = llclamp<size_t>(emoji_idx, 0, mTotalEmojis - 1);
+
+    updateScrollPos();
+}
+
+void LLPanelEmojiComplete::selectNext()
+{
+    if (!mTotalEmojis)
+        return;
+
+    mCurSelected = (mCurSelected < mTotalEmojis - 1) ? mCurSelected + 1 : 0;
+
+    updateScrollPos();
+}
+
+void LLPanelEmojiComplete::selectPrevious()
+{
+    if (!mTotalEmojis)
+        return;
+
+    mCurSelected = (mCurSelected && mCurSelected < mTotalEmojis) ? mCurSelected - 1 : mTotalEmojis - 1;
+
+    updateScrollPos();
+}
+
+void LLPanelEmojiComplete::updateConstraints()
+{
+    mRenderRect = getLocalRect();
+
+    mEmojiWidth = mIconFont->getWidthF32(u8"\U0001F431") + mPadding * 2;
+    if (mVertical)
+    {
+        mEmojiHeight = mIconFont->getLineHeight() + mPadding * 2;
+        if (!mNoScroll && mVisibleEmojis < mTotalEmojis)
+        {
+            mRenderRect.mRight -= mScrollbar->getThickness();
+            mScrollbar->setDocSize(mTotalEmojis);
+            mScrollbar->setPageSize(mVisibleEmojis);
+            mScrollbar->setOrigin(mRenderRect.mRight, 0);
+            mScrollbar->reshape(mScrollbar->getThickness(), mRenderRect.mTop, TRUE);
+            mScrollbar->setVisible(TRUE);
+        }
+        else
+        {
+            mScrollbar->setVisible(FALSE);
+        }
+    }
+    else
+    {
+        mEmojiHeight = mRenderRect.getHeight();
+        mRenderRect.stretch((mRenderRect.getWidth() - mVisibleEmojis * mEmojiWidth) / -2, 0);
+    }
+
+    updateScrollPos();
+}
+
+void LLPanelEmojiComplete::updateScrollPos()
+{
+    if (mNoScroll || 0 == mTotalEmojis || mTotalEmojis < mVisibleEmojis || 0 == mCurSelected)
+    {
+        mScrollPos = 0;
+        if (mCurSelected >= mVisibleEmojis)
+        {
+            mCurSelected = mVisibleEmojis ? mVisibleEmojis - 1 : 0;
+        }
+    }
+    else if (mTotalEmojis - 1 == mCurSelected)
+    {
+        mScrollPos = mTotalEmojis - mVisibleEmojis;
+    }
+    else
+    {
+        mScrollPos = mCurSelected - ((float)mCurSelected / (mTotalEmojis - 2) * (mVisibleEmojis - 2));
+    }
+
+    if (mScrollbar && mScrollbar->getVisible())
+    {
+        mScrollbar->setDocPos(mScrollPos);
+    }
+}
+
+// ============================================================================
+// LLFloaterEmojiComplete
+//
+
+LLFloaterEmojiComplete::LLFloaterEmojiComplete(const LLSD& sdKey)
+    : LLFloater(sdKey)
+{
+    // This floater should hover on top of our dependent (with the dependent having the focus)
+    setFocusStealsFrontmost(false);
+    setAutoFocus(false);
+    setBackgroundVisible(false);
+    setIsChrome(true);
+}
+
+BOOL LLFloaterEmojiComplete::handleKey(KEY key, MASK mask, BOOL called_from_parent)
+{
+    bool handled = false;
+    if (MASK_NONE == mask)
+    {
+        switch (key)
+        {
+            case KEY_ESCAPE:
+                LLEmojiHelper::instance().hideHelper();
+                handled = true;
+                break;
+        }
+    }
+
+    if (handled)
+        return TRUE;
+
+    return LLFloater::handleKey(key, mask, called_from_parent);
+}
+
+void LLFloaterEmojiComplete::onOpen(const LLSD& key)
+{
+    mEmojiCtrl->setEmojiHint(key["hint"].asString());
+    if (0 == mEmojiCtrl->getEmojiCount())
+    {
+        LLEmojiHelper::instance().hideHelper();
+        return;
+    }
+
+    if (mEmojiCtrl->isAutoSize())
+    {
+        LLRect outer_rect = getRect();
+        const LLRect& inner_rect = mEmojiCtrl->getRect();
+        outer_rect.mTop = outer_rect.mBottom + inner_rect.mBottom * 2 + inner_rect.getHeight();
+        outer_rect.mRight = outer_rect.mLeft + inner_rect.mLeft * 2 + inner_rect.getWidth();
+        setRect(outer_rect);
+    }
+
+    gFloaterView->adjustToFitScreen(this, FALSE);
+}
+
+BOOL LLFloaterEmojiComplete::postBuild()
+{
+    mEmojiCtrl = findChild<LLPanelEmojiComplete>("emoji_complete_ctrl");
+    mEmojiCtrl->setCommitCallback(
+        [this](LLUICtrl* ctrl, const LLSD& param)
+        {
+            setValue(param);
+            onCommit();
+        });
+
+    mEmojiCtrlHorz = getRect().getWidth() - mEmojiCtrl->getRect().getWidth();
+    mEmojiCtrlVert = getRect().getHeight() - mEmojiCtrl->getRect().getHeight();
+
+    return LLFloater::postBuild();
+}
+
+void LLFloaterEmojiComplete::reshape(S32 width, S32 height, BOOL called_from_parent)
+{
+    if (called_from_parent)
+    {
+        LLFloater::reshape(width, height, called_from_parent);
+    }
+    else
+    {
+        LLRect outer(getRect()), inner(mEmojiCtrl->getRect());
+        outer.mRight = outer.mLeft + inner.getWidth() + mEmojiCtrlHorz;
+        outer.mTop = outer.mBottom + inner.getHeight() + mEmojiCtrlVert;
+        setRect(outer);
+    }
+}
+
+// ============================================================================
diff --git a/indra/newview/llpanelemojicomplete.h b/indra/newview/llpanelemojicomplete.h
new file mode 100644
index 0000000000..36a965202e
--- /dev/null
+++ b/indra/newview/llpanelemojicomplete.h
@@ -0,0 +1,132 @@
+/**
+* @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;
+};
+
+// ============================================================================
diff --git a/indra/newview/llpaneltopinfobar.h b/indra/newview/llpaneltopinfobar.h
index 78dd997029..b6c263e331 100644
--- a/indra/newview/llpaneltopinfobar.h
+++ b/indra/newview/llpaneltopinfobar.h
@@ -46,8 +46,8 @@ class LLPanelTopInfoBar : public LLPanel, public LLSingleton<LLPanelTopInfoBar>,
 public:
 	typedef boost::signals2::signal<void ()> resize_signal_t;
 
-	/*virtual*/ BOOL postBuild();
-	/*virtual*/ void draw();
+	/*virtual*/ BOOL postBuild() override;
+	/*virtual*/ void draw() override;
 
 	/**
 	 * Updates location and parcel icons on login complete
@@ -83,7 +83,7 @@ private:
 	 */
 	void initParcelIcons();
 
-	BOOL handleRightMouseDown(S32 x, S32 y, MASK mask);
+	BOOL handleRightMouseDown(S32 x, S32 y, MASK mask) override;
 
 	/**
 	 * Handles clicks on the parcel icons.
diff --git a/indra/newview/llpathfindingpathtool.h b/indra/newview/llpathfindingpathtool.h
index 88cb3a15f8..f98624e30d 100644
--- a/indra/newview/llpathfindingpathtool.h
+++ b/indra/newview/llpathfindingpathtool.h
@@ -66,17 +66,17 @@ public:
 	typedef boost::signals2::signal<void (void)> path_event_signal_t;
 	typedef boost::signals2::connection          path_event_slot_t;
 
-	virtual BOOL      handleMouseDown(S32 pX, S32 pY, MASK pMask);
-	virtual BOOL      handleMouseUp(S32 pX, S32 pY, MASK pMask);
-	virtual BOOL      handleMiddleMouseDown(S32 pX, S32 pY, MASK pMask);
-	virtual BOOL      handleMiddleMouseUp(S32 pX, S32 pY, MASK pMask);
-	virtual BOOL      handleRightMouseDown(S32 pX, S32 pY, MASK pMask);
-	virtual BOOL      handleRightMouseUp(S32 pX, S32 pY, MASK pMask);
-	virtual BOOL      handleDoubleClick(S32 x, S32 y, MASK mask);
+	virtual BOOL      handleMouseDown(S32 pX, S32 pY, MASK pMask) override;
+	virtual BOOL      handleMouseUp(S32 pX, S32 pY, MASK pMask) override;
+	virtual BOOL      handleMiddleMouseDown(S32 pX, S32 pY, MASK pMask) override;
+	virtual BOOL      handleMiddleMouseUp(S32 pX, S32 pY, MASK pMask) override;
+	virtual BOOL      handleRightMouseDown(S32 pX, S32 pY, MASK pMask) override;
+	virtual BOOL      handleRightMouseUp(S32 pX, S32 pY, MASK pMask) override;
+	virtual BOOL      handleDoubleClick(S32 x, S32 y, MASK mask) override;
 
-	virtual BOOL      handleHover(S32 pX, S32 pY, MASK pMask);
+	virtual BOOL      handleHover(S32 pX, S32 pY, MASK pMask) override;
 
-	virtual BOOL      handleKey(KEY pKey, MASK pMask);
+	virtual BOOL      handleKey(KEY pKey, MASK pMask) override;
 
 	EPathStatus       getPathStatus() const;
 
diff --git a/indra/newview/llproductinforequest.h b/indra/newview/llproductinforequest.h
index d1036374e8..0b94c39d11 100644
--- a/indra/newview/llproductinforequest.h
+++ b/indra/newview/llproductinforequest.h
@@ -46,7 +46,7 @@ public:
 	std::string getDescriptionForSku(const std::string& sku);
 
 private:
-	/* virtual */ void initSingleton();
+	/* virtual */ void initSingleton() override;
 
     void getLandDescriptionsCoro(std::string url);
     LLSD mSkuDescriptions;
diff --git a/indra/newview/llrecentpeople.h b/indra/newview/llrecentpeople.h
index 1b322f2c0a..0c04222a9f 100644
--- a/indra/newview/llrecentpeople.h
+++ b/indra/newview/llrecentpeople.h
@@ -106,7 +106,7 @@ public:
 	/**
 	 * LLSimpleListener interface.
 	 */
-	/*virtual*/ bool handleEvent(LLPointer<LLOldEvents::LLEvent> event, const LLSD& userdata);
+	/*virtual*/ bool handleEvent(LLPointer<LLOldEvents::LLEvent> event, const LLSD& userdata) override;
 
 	void updateAvatarsArrivalTime(uuid_vec_t& uuids);
 	F32 getArrivalTimeByID(const LLUUID& id);
diff --git a/indra/newview/llsceneview.cpp b/indra/newview/llsceneview.cpp
index 9b1d2d48c6..2643ee95f8 100644
--- a/indra/newview/llsceneview.cpp
+++ b/indra/newview/llsceneview.cpp
@@ -99,7 +99,6 @@ void LLSceneView::draw()
 	std::vector<F32> physics_cost[2];
 	F32 total_physics[] = { 0.f, 0.f };
 	
-
 	LLViewerRegion* region = gAgent.getRegion();
 	if (region)
 	{
diff --git a/indra/newview/llselectmgr.cpp b/indra/newview/llselectmgr.cpp
index 30e12faca5..620dcad760 100644
--- a/indra/newview/llselectmgr.cpp
+++ b/indra/newview/llselectmgr.cpp
@@ -5526,9 +5526,6 @@ void LLSelectMgr::sendListToRegions(LLObjectSelectionHandle selected_handle,
 	LLSelectNode* linkset_root = NULL;
 	LLViewerRegion*	last_region;
 	LLViewerRegion*	current_region;
-
-//	S32 objects_sent = 0;
-//	S32 packets_sent = 0;
 	S32 objects_in_this_packet = 0;
 
 	bool link_operation = message_name == "ObjectLink";
@@ -5660,7 +5657,6 @@ void LLSelectMgr::sendListToRegions(LLObjectSelectionHandle selected_handle,
 			(*pack_body)(node, user_data);
             // do any related logging
             (*log_func)(node, user_data);
-//			++objects_sent;
 			++objects_in_this_packet;
 
 			// and on to the next object
@@ -5678,7 +5674,6 @@ void LLSelectMgr::sendListToRegions(LLObjectSelectionHandle selected_handle,
 		{
 			// otherwise send current message and start new one
 			gMessageSystem->sendReliable( last_region->getHost());
-//			packets_sent++;
 			objects_in_this_packet = 0;
 
 			gMessageSystem->newMessage(message_name.c_str());
@@ -5695,7 +5690,6 @@ void LLSelectMgr::sendListToRegions(LLObjectSelectionHandle selected_handle,
 				{
 					// add root instance into new message
 					(*pack_body)(linkset_root, user_data);
-//					++objects_sent;
 					++objects_in_this_packet;
 				}
 			}
@@ -5709,7 +5703,6 @@ void LLSelectMgr::sendListToRegions(LLObjectSelectionHandle selected_handle,
 	if (gMessageSystem->getCurrentSendTotal() > 0)
 	{
 		gMessageSystem->sendReliable( current_region->getHost());
-//		packets_sent++;
 	}
 	else
 	{
diff --git a/indra/newview/llspeakers.h b/indra/newview/llspeakers.h
index ed795b5155..22c9481687 100644
--- a/indra/newview/llspeakers.h
+++ b/indra/newview/llspeakers.h
@@ -338,7 +338,7 @@ class LLActiveSpeakerMgr : public LLSpeakerMgr, public LLSingleton<LLActiveSpeak
 	LOG_CLASS(LLActiveSpeakerMgr);
 
 protected:
-	virtual void updateSpeakerList();
+	virtual void updateSpeakerList() override;
 };
 
 class LLLocalSpeakerMgr : public LLSpeakerMgr, public LLSingleton<LLLocalSpeakerMgr>
@@ -347,7 +347,7 @@ class LLLocalSpeakerMgr : public LLSpeakerMgr, public LLSingleton<LLLocalSpeaker
 	~LLLocalSpeakerMgr ();
 	LOG_CLASS(LLLocalSpeakerMgr);
 protected:
-	virtual void updateSpeakerList();
+	virtual void updateSpeakerList() override;
 };
 
 #endif // LL_LLSPEAKERS_H
diff --git a/indra/newview/llspeakingindicatormanager.cpp b/indra/newview/llspeakingindicatormanager.cpp
index 0111d8869c..c4c9673be3 100644
--- a/indra/newview/llspeakingindicatormanager.cpp
+++ b/indra/newview/llspeakingindicatormanager.cpp
@@ -53,7 +53,7 @@ class SpeakingIndicatorManager : public LLSingleton<SpeakingIndicatorManager>, L
 	LOG_CLASS(SpeakingIndicatorManager);
 
 protected:
-    void                cleanupSingleton();
+    void                cleanupSingleton() override;
 
 public:
 
@@ -88,7 +88,7 @@ public:
 	 * So, method does not calculate difference between these list it only switches off already 
 	 * switched on indicators and switches on indicators of voice channel participants
 	 */
-	void onParticipantsChanged();
+	void onParticipantsChanged() override;
 	
 private:
 	typedef std::set<LLUUID> speaker_ids_t;
diff --git a/indra/newview/lltextureview.cpp b/indra/newview/lltextureview.cpp
index 62703e3499..84cd6e2da7 100644
--- a/indra/newview/lltextureview.cpp
+++ b/indra/newview/lltextureview.cpp
@@ -588,8 +588,7 @@ void LLGLTexMemBar::draw()
 	x_right = 550.0;
 	LLFontGL::getFontMonospace()->renderUTF8(text, 0, 0, v_offset + line_height*3,
 											 text_color, LLFontGL::LEFT, LLFontGL::TOP,
-											 LLFontGL::NORMAL, LLFontGL::NO_SHADOW, S32_MAX, S32_MAX,
-											 &x_right, FALSE);
+											 LLFontGL::NORMAL, LLFontGL::NO_SHADOW, S32_MAX, S32_MAX, &x_right);
 
 	F32Kilobits bandwidth(LLAppViewer::getTextureFetch()->getTextureBandwidth());
 	F32Kilobits max_bandwidth(gSavedSettings.getF32("ThrottleBandwidthKBPS"));
diff --git a/indra/newview/lltoolbrush.h b/indra/newview/lltoolbrush.h
index c108d83256..6545ee3611 100644
--- a/indra/newview/lltoolbrush.h
+++ b/indra/newview/lltoolbrush.h
@@ -49,27 +49,27 @@ class LLToolBrushLand : public LLTool, public LLEditMenuHandler, public LLSingle
 public:
 	
 	// x,y in window coords, 0,0 = left,bot
-	virtual BOOL handleMouseDown( S32 x, S32 y, MASK mask );
-	virtual BOOL handleMouseUp( S32 x, S32 y, MASK mask );		
-	virtual BOOL handleHover( S32 x, S32 y, MASK mask );
-	virtual void handleSelect();
-	virtual void handleDeselect();
+	virtual BOOL handleMouseDown( S32 x, S32 y, MASK mask ) override;
+	virtual BOOL handleMouseUp( S32 x, S32 y, MASK mask ) override;
+	virtual BOOL handleHover( S32 x, S32 y, MASK mask ) override;
+	virtual void handleSelect() override;
+	virtual void handleDeselect() override;
 
 	// isAlwaysRendered() - return true if this is a tool that should
 	// always be rendered regardless of selection.
-	virtual BOOL isAlwaysRendered() { return TRUE; }
+	virtual BOOL isAlwaysRendered()  override { return TRUE; }
 
 	// Draw the area that will be affected.
-	virtual void render();
+	virtual void render() override;
 
 	// on Idle is where the land modification actually occurs
 	static void onIdle(void* brush_tool);  
 
-	void			onMouseCaptureLost();
+	void onMouseCaptureLost() override;
 
 	void modifyLandInSelectionGlobal();
-	virtual void	undo();
-	virtual BOOL	canUndo() const	{ return TRUE; }
+	virtual void	undo() override;
+	virtual BOOL	canUndo() const	 override { return TRUE; }
 
 protected:
 	void brush( void );
diff --git a/indra/newview/lltoolcomp.h b/indra/newview/lltoolcomp.h
index 86506f725e..f539a045b7 100644
--- a/indra/newview/lltoolcomp.h
+++ b/indra/newview/lltoolcomp.h
@@ -108,11 +108,11 @@ class LLToolCompInspect : public LLToolComposite, public LLSingleton<LLToolCompI
 public:
 
 	// Overridden from LLToolComposite
-    virtual BOOL		handleMouseDown(S32 x, S32 y, MASK mask);
-	virtual BOOL		handleMouseUp(S32 x, S32 y, MASK mask);
-    virtual BOOL		handleDoubleClick(S32 x, S32 y, MASK mask);
-	virtual BOOL		handleKey(KEY key, MASK mask);
-	virtual void		onMouseCaptureLost();
+    virtual BOOL		handleMouseDown(S32 x, S32 y, MASK mask) override;
+	virtual BOOL		handleMouseUp(S32 x, S32 y, MASK mask) override;
+    virtual BOOL		handleDoubleClick(S32 x, S32 y, MASK mask) override;
+	virtual BOOL		handleKey(KEY key, MASK mask) override;
+	virtual void		onMouseCaptureLost() override;
 			void		keyUp(KEY key, MASK mask);
 
 	static void pickCallback(const LLPickInfo& pick_info);
@@ -133,13 +133,13 @@ class LLToolCompTranslate : public LLToolComposite, public LLSingleton<LLToolCom
 public:
 
 	// Overridden from LLToolComposite
-	virtual BOOL		handleMouseDown(S32 x, S32 y, MASK mask);
-	virtual BOOL		handleDoubleClick(S32 x, S32 y, MASK mask);
-	virtual BOOL		handleHover(S32 x, S32 y, MASK mask);
-	virtual BOOL		handleMouseUp(S32 x, S32 y, MASK mask);			// Returns to the default tool
-	virtual void		render();
+	virtual BOOL		handleMouseDown(S32 x, S32 y, MASK mask) override;
+	virtual BOOL		handleDoubleClick(S32 x, S32 y, MASK mask) override;
+	virtual BOOL		handleHover(S32 x, S32 y, MASK mask) override;
+	virtual BOOL		handleMouseUp(S32 x, S32 y, MASK mask) override;			// Returns to the default tool
+	virtual void		render() override;
 
-	virtual LLTool*		getOverrideTool(MASK mask);
+	virtual LLTool*		getOverrideTool(MASK mask) override;
 
 	static void pickCallback(const LLPickInfo& pick_info);
 };
@@ -154,13 +154,13 @@ class LLToolCompScale : public LLToolComposite, public LLSingleton<LLToolCompSca
 public:
 
 	// Overridden from LLToolComposite
-    virtual BOOL		handleMouseDown(S32 x, S32 y, MASK mask);
-    virtual BOOL		handleDoubleClick(S32 x, S32 y, MASK mask);
-    virtual BOOL		handleHover(S32 x, S32 y, MASK mask);
-	virtual BOOL		handleMouseUp(S32 x, S32 y, MASK mask);			// Returns to the default tool
-	virtual void		render();
+    virtual BOOL		handleMouseDown(S32 x, S32 y, MASK mask) override;
+    virtual BOOL		handleDoubleClick(S32 x, S32 y, MASK mask) override;
+    virtual BOOL		handleHover(S32 x, S32 y, MASK mask) override;
+	virtual BOOL		handleMouseUp(S32 x, S32 y, MASK mask) override;			// Returns to the default tool
+	virtual void		render() override;
 
-	virtual LLTool*		getOverrideTool(MASK mask);
+	virtual LLTool*		getOverrideTool(MASK mask) override;
 	
 	static void pickCallback(const LLPickInfo& pick_info);
 };
@@ -176,13 +176,13 @@ class LLToolCompRotate : public LLToolComposite, public LLSingleton<LLToolCompRo
 public:
 
 	// Overridden from LLToolComposite
-    virtual BOOL		handleMouseDown(S32 x, S32 y, MASK mask);
-    virtual BOOL		handleDoubleClick(S32 x, S32 y, MASK mask);
-    virtual BOOL		handleHover(S32 x, S32 y, MASK mask);
-	virtual BOOL		handleMouseUp(S32 x, S32 y, MASK mask);
-	virtual void		render();
+    virtual BOOL		handleMouseDown(S32 x, S32 y, MASK mask) override;
+    virtual BOOL		handleDoubleClick(S32 x, S32 y, MASK mask) override;
+    virtual BOOL		handleHover(S32 x, S32 y, MASK mask) override;
+	virtual BOOL		handleMouseUp(S32 x, S32 y, MASK mask) override;
+	virtual void		render() override;
 
-	virtual LLTool*		getOverrideTool(MASK mask);
+	virtual LLTool*		getOverrideTool(MASK mask) override;
 
 	static void pickCallback(const LLPickInfo& pick_info);
 
@@ -199,9 +199,9 @@ class LLToolCompCreate : public LLToolComposite, public LLSingleton<LLToolCompCr
 public:
 
 	// Overridden from LLToolComposite
-    virtual BOOL		handleMouseDown(S32 x, S32 y, MASK mask);
-    virtual BOOL		handleDoubleClick(S32 x, S32 y, MASK mask);
-	virtual BOOL		handleMouseUp(S32 x, S32 y, MASK mask);
+    virtual BOOL		handleMouseDown(S32 x, S32 y, MASK mask) override;
+    virtual BOOL		handleDoubleClick(S32 x, S32 y, MASK mask) override;
+	virtual BOOL		handleMouseUp(S32 x, S32 y, MASK mask) override;
 	
 	static void pickCallback(const LLPickInfo& pick_info);
 protected:
@@ -224,16 +224,16 @@ class LLToolCompGun : public LLToolComposite, public LLSingleton<LLToolCompGun>
 public:
 
 	// Overridden from LLToolComposite
-    virtual BOOL			handleHover(S32 x, S32 y, MASK mask);
-	virtual BOOL			handleMouseDown(S32 x, S32 y, MASK mask);
-	virtual BOOL			handleDoubleClick(S32 x, S32 y, MASK mask);
-	virtual BOOL			handleRightMouseDown(S32 x, S32 y, MASK mask);
-	virtual BOOL			handleMouseUp(S32 x, S32 y, MASK mask);
-	virtual BOOL			handleScrollWheel(S32 x, S32 y, S32 clicks);
-	virtual void			onMouseCaptureLost();
-	virtual void			handleSelect();
-	virtual void			handleDeselect();
-	virtual LLTool*			getOverrideTool(MASK mask) { return NULL; }
+    virtual BOOL			handleHover(S32 x, S32 y, MASK mask) override;
+	virtual BOOL			handleMouseDown(S32 x, S32 y, MASK mask) override;
+	virtual BOOL			handleDoubleClick(S32 x, S32 y, MASK mask) override;
+	virtual BOOL			handleRightMouseDown(S32 x, S32 y, MASK mask) override;
+	virtual BOOL			handleMouseUp(S32 x, S32 y, MASK mask) override;
+	virtual BOOL			handleScrollWheel(S32 x, S32 y, S32 clicks) override;
+	virtual void			onMouseCaptureLost() override;
+	virtual void			handleSelect() override;
+	virtual void			handleDeselect() override;
+	virtual LLTool*			getOverrideTool(MASK mask) override { return NULL; }
 
 protected:
 	LLToolGun*			mGun;
diff --git a/indra/newview/lltooldraganddrop.h b/indra/newview/lltooldraganddrop.h
index db2fe87f20..60a2f01107 100644
--- a/indra/newview/lltooldraganddrop.h
+++ b/indra/newview/lltooldraganddrop.h
@@ -48,12 +48,12 @@ public:
 	typedef boost::signals2::signal<void ()> enddrag_signal_t;
 
 	// overridden from LLTool
-	virtual BOOL	handleMouseUp(S32 x, S32 y, MASK mask);
-	virtual BOOL	handleHover(S32 x, S32 y, MASK mask);
-	virtual BOOL	handleKey(KEY key, MASK mask);
-	virtual BOOL	handleToolTip(S32 x, S32 y, MASK mask);
-	virtual void	onMouseCaptureLost();
-	virtual void	handleDeselect();
+	virtual BOOL	handleMouseUp(S32 x, S32 y, MASK mask) override;
+	virtual BOOL	handleHover(S32 x, S32 y, MASK mask) override;
+	virtual BOOL	handleKey(KEY key, MASK mask) override;
+	virtual BOOL	handleToolTip(S32 x, S32 y, MASK mask) override;
+	virtual void	onMouseCaptureLost() override;
+	virtual void	handleDeselect() override;
 
 	void			setDragStart( S32 x, S32 y );			// In screen space
 	BOOL			isOverThreshold( S32 x, S32 y );		// In screen space
diff --git a/indra/newview/lltoolface.h b/indra/newview/lltoolface.h
index e4b8ae12b8..7c8ff20480 100644
--- a/indra/newview/lltoolface.h
+++ b/indra/newview/lltoolface.h
@@ -39,11 +39,11 @@ class LLToolFace
 	virtual ~LLToolFace();
 public:
 
-	virtual BOOL	handleMouseDown(S32 x, S32 y, MASK mask);
-	virtual BOOL	handleDoubleClick(S32 x, S32 y, MASK mask);
-	virtual void	handleSelect();
-	virtual void	handleDeselect();
-	virtual void	render();			// draw face highlights
+	virtual BOOL	handleMouseDown(S32 x, S32 y, MASK mask) override;
+	virtual BOOL	handleDoubleClick(S32 x, S32 y, MASK mask) override;
+	virtual void	handleSelect() override;
+	virtual void	handleDeselect() override;
+	virtual void	render() override;			// draw face highlights
 
 	static void pickCallback(const LLPickInfo& pick_info);
 };
diff --git a/indra/newview/lltoolfocus.h b/indra/newview/lltoolfocus.h
index ef71f9230a..54d9827ae6 100644
--- a/indra/newview/lltoolfocus.h
+++ b/indra/newview/lltoolfocus.h
@@ -38,16 +38,16 @@ class LLToolCamera
 	virtual ~LLToolCamera();
 public:
 
-	virtual BOOL	handleMouseDown(S32 x, S32 y, MASK mask);
-	virtual BOOL	handleMouseUp(S32 x, S32 y, MASK mask);
-	virtual BOOL	handleHover(S32 x, S32 y, MASK mask);
+	virtual BOOL	handleMouseDown(S32 x, S32 y, MASK mask) override;
+	virtual BOOL	handleMouseUp(S32 x, S32 y, MASK mask) override;
+	virtual BOOL	handleHover(S32 x, S32 y, MASK mask) override;
 
-	virtual void	onMouseCaptureLost();
+	virtual void	onMouseCaptureLost() override;
 
-	virtual void	handleSelect();
-	virtual void	handleDeselect();
+	virtual void	handleSelect() override;
+	virtual void	handleDeselect() override;
 
-	virtual LLTool*	getOverrideTool(MASK mask) { return NULL; }
+	virtual LLTool*	getOverrideTool(MASK mask) override { return NULL; }
 
     void setClickPickPending() { mClickPickPending = true; }
 	static void pickCallback(const LLPickInfo& pick_info);
diff --git a/indra/newview/lltoolindividual.h b/indra/newview/lltoolindividual.h
index e7c2060fba..89dd9d9796 100644
--- a/indra/newview/lltoolindividual.h
+++ b/indra/newview/lltoolindividual.h
@@ -43,11 +43,9 @@ class LLToolIndividual : public LLTool, public LLSingleton<LLToolIndividual>
 	virtual ~LLToolIndividual();
 public:
 
-	virtual BOOL handleMouseDown(S32 x, S32 y, MASK mask);
-	virtual BOOL handleDoubleClick(S32 x, S32 y, MASK mask);
-	virtual void handleSelect();
-	//virtual void handleDeselect();
-	//virtual void render();
+	virtual BOOL handleMouseDown(S32 x, S32 y, MASK mask) override;
+	virtual BOOL handleDoubleClick(S32 x, S32 y, MASK mask) override;
+	virtual void handleSelect() override;
 
 	static void pickCallback(const LLPickInfo& pick_info);
 
diff --git a/indra/newview/lltoolobjpicker.h b/indra/newview/lltoolobjpicker.h
index 5ad9b67e21..a55cd223de 100644
--- a/indra/newview/lltoolobjpicker.h
+++ b/indra/newview/lltoolobjpicker.h
@@ -38,16 +38,16 @@ class LLToolObjPicker : public LLTool, public LLSingleton<LLToolObjPicker>
 	LLSINGLETON(LLToolObjPicker);
 public:
 
-	virtual BOOL		handleMouseDown(S32 x, S32 y, MASK mask);
-	virtual BOOL		handleMouseUp(S32 x, S32 y, MASK mask);
-	virtual BOOL		handleHover(S32 x, S32 y, MASK mask);
+	virtual BOOL		handleMouseDown(S32 x, S32 y, MASK mask) override;
+	virtual BOOL		handleMouseUp(S32 x, S32 y, MASK mask) override;
+	virtual BOOL		handleHover(S32 x, S32 y, MASK mask) override;
 
-	virtual void 		handleSelect();
-	virtual void 		handleDeselect();
+	virtual void 		handleSelect() override;
+	virtual void 		handleDeselect() override;
 
-	virtual void		onMouseCaptureLost();
+	virtual void		onMouseCaptureLost() override;
 
-	virtual void 		setExitCallback(void (*callback)(void *), void *callback_data);
+	void 		setExitCallback(void (*callback)(void *), void *callback_data);
 
 	LLUUID				getObjectID() const { return mHitObjectID; }
 
diff --git a/indra/newview/lltoolpie.h b/indra/newview/lltoolpie.h
index 8f6100e4b4..dca0d12cf6 100644
--- a/indra/newview/lltoolpie.h
+++ b/indra/newview/lltoolpie.h
@@ -42,26 +42,26 @@ class LLToolPie : public LLTool, public LLSingleton<LLToolPie>
 public:
 
 	// Virtual functions inherited from LLMouseHandler
-	virtual BOOL		handleAnyMouseClick(S32 x, S32 y, MASK mask, EMouseClickType clicktype, BOOL down);
-	virtual BOOL		handleMouseDown(S32 x, S32 y, MASK mask);
-	virtual BOOL		handleRightMouseDown(S32 x, S32 y, MASK mask);
-	virtual BOOL		handleMouseUp(S32 x, S32 y, MASK mask);
-	virtual BOOL		handleRightMouseUp(S32 x, S32 y, MASK mask);
-	virtual BOOL		handleHover(S32 x, S32 y, MASK mask);
-	virtual BOOL		handleDoubleClick(S32 x, S32 y, MASK mask);
+	virtual BOOL		handleAnyMouseClick(S32 x, S32 y, MASK mask, EMouseClickType clicktype, BOOL down) override;
+	virtual BOOL		handleMouseDown(S32 x, S32 y, MASK mask) override;
+	virtual BOOL		handleRightMouseDown(S32 x, S32 y, MASK mask) override;
+	virtual BOOL		handleMouseUp(S32 x, S32 y, MASK mask) override;
+	virtual BOOL		handleRightMouseUp(S32 x, S32 y, MASK mask) override;
+	virtual BOOL		handleHover(S32 x, S32 y, MASK mask) override;
+	virtual BOOL		handleDoubleClick(S32 x, S32 y, MASK mask) override;
 	BOOL				handleScrollWheelAny(S32 x, S32 y, S32 clicks_x, S32 clicks_y);
-	virtual BOOL		handleScrollWheel(S32 x, S32 y, S32 clicks);
-	virtual BOOL		handleScrollHWheel(S32 x, S32 y, S32 clicks);
-	virtual BOOL		handleToolTip(S32 x, S32 y, MASK mask);
+	virtual BOOL		handleScrollWheel(S32 x, S32 y, S32 clicks) override;
+	virtual BOOL		handleScrollHWheel(S32 x, S32 y, S32 clicks) override;
+	virtual BOOL		handleToolTip(S32 x, S32 y, MASK mask) override;
 
-	virtual void		render();
+	virtual void		render() override;
 
-	virtual void		stopEditing();
+	virtual void		stopEditing() override;
 
-	virtual void		onMouseCaptureLost();
-	virtual void		handleSelect();
-	virtual void		handleDeselect();
-	virtual LLTool*		getOverrideTool(MASK mask);
+	virtual void		onMouseCaptureLost() override;
+	virtual void		handleSelect() override;
+	virtual void		handleDeselect() override;
+	virtual LLTool*		getOverrideTool(MASK mask) override;
 
 	LLPickInfo&			getPick() { return mPick; }
 	U8					getClickAction() { return mClickAction; }
diff --git a/indra/newview/lltoolpipette.h b/indra/newview/lltoolpipette.h
index 7575d8ad18..2636811c66 100644
--- a/indra/newview/lltoolpipette.h
+++ b/indra/newview/lltoolpipette.h
@@ -47,10 +47,10 @@ class LLToolPipette
 	virtual ~LLToolPipette();
 
 public:
-	virtual BOOL	handleMouseDown(S32 x, S32 y, MASK mask);
-	virtual BOOL	handleMouseUp(S32 x, S32 y, MASK mask);
-	virtual BOOL	handleHover(S32 x, S32 y, MASK mask);
-	virtual BOOL	handleToolTip(S32 x, S32 y, MASK mask);
+	virtual BOOL	handleMouseDown(S32 x, S32 y, MASK mask) override;
+	virtual BOOL	handleMouseUp(S32 x, S32 y, MASK mask) override;
+	virtual BOOL	handleHover(S32 x, S32 y, MASK mask) override;
+	virtual BOOL	handleToolTip(S32 x, S32 y, MASK mask) override;
 
 	// Note: Don't return connection; use boost::bind + boost::signals2::trackable to disconnect slots
 	typedef boost::signals2::signal<void (const LLTextureEntry& te)> signal_t;
diff --git a/indra/newview/lltoolselectland.h b/indra/newview/lltoolselectland.h
index b5ba72f16d..88bc4e2e3d 100644
--- a/indra/newview/lltoolselectland.h
+++ b/indra/newview/lltoolselectland.h
@@ -39,15 +39,15 @@ class LLToolSelectLand
 	virtual ~LLToolSelectLand();
 
 public:
-	/*virtual*/ BOOL		handleMouseDown(S32 x, S32 y, MASK mask);
-	/*virtual*/ BOOL		handleDoubleClick(S32 x, S32 y, MASK mask);
-	/*virtual*/ BOOL		handleMouseUp(S32 x, S32 y, MASK mask);
-	/*virtual*/ BOOL		handleHover(S32 x, S32 y, MASK mask);
-	/*virtual*/ void		render();				// draw the select rectangle
-	/*virtual*/ BOOL		isAlwaysRendered()		{ return TRUE; }
+	/*virtual*/ BOOL		handleMouseDown(S32 x, S32 y, MASK mask) override;
+	/*virtual*/ BOOL		handleDoubleClick(S32 x, S32 y, MASK mask) override;
+	/*virtual*/ BOOL		handleMouseUp(S32 x, S32 y, MASK mask) override;
+	/*virtual*/ BOOL		handleHover(S32 x, S32 y, MASK mask) override;
+	/*virtual*/ void		render() override;				// draw the select rectangle
+	/*virtual*/ BOOL		isAlwaysRendered() override	{ return TRUE; }
 
-	/*virtual*/ void		handleSelect();
-	/*virtual*/ void		handleDeselect();
+	/*virtual*/ void		handleSelect() override;
+	/*virtual*/ void		handleDeselect() override;
 
 protected:
 	BOOL			outsideSlop(S32 x, S32 y, S32 start_x, S32 start_y);
diff --git a/indra/newview/llversioninfo.h b/indra/newview/llversioninfo.h
index a40042380a..f82c5ffa98 100644
--- a/indra/newview/llversioninfo.h
+++ b/indra/newview/llversioninfo.h
@@ -47,7 +47,7 @@ class LLStoreListener;
 class LLVersionInfo: public LLSingleton<LLVersionInfo>
 {
 	LLSINGLETON(LLVersionInfo);
-	void initSingleton();
+	void initSingleton() override;
 public:
 	~LLVersionInfo();
 
diff --git a/indra/newview/llviewerchat.cpp b/indra/newview/llviewerchat.cpp
index 1c3c547bc1..0d2d62fd77 100644
--- a/indra/newview/llviewerchat.cpp
+++ b/indra/newview/llviewerchat.cpp
@@ -25,7 +25,7 @@
  */
 
 #include "llviewerprecompiledheaders.h"
-#include "llviewerchat.h" 
+#include "llviewerchat.h"
 
 // newview includes
 #include "llagent.h" 	// gAgent		
diff --git a/indra/newview/llviewerfloaterreg.cpp b/indra/newview/llviewerfloaterreg.cpp
index 3a08f748d6..8353d4d1d7 100644
--- a/indra/newview/llviewerfloaterreg.cpp
+++ b/indra/newview/llviewerfloaterreg.cpp
@@ -66,6 +66,7 @@
 #include "llfloaterdestinations.h"
 #include "llfloaterdisplayname.h"
 #include "llfloatereditextdaycycle.h"
+#include "llfloateremojipicker.h"
 #include "llfloaterenvironmentadjust.h"
 #include "llfloaterexperienceprofile.h"
 #include "llfloaterexperiences.h"
@@ -161,6 +162,7 @@
 #include "llfloaterimnearbychat.h"
 #include "llpanelblockedlist.h"
 #include "llpanelprofileclassifieds.h"
+#include "llpanelemojicomplete.h"
 #include "llpreviewanim.h"
 #include "llpreviewgesture.h"
 #include "llpreviewnotecard.h"
@@ -339,7 +341,7 @@ void LLViewerFloaterReg::registerFloaters()
 	LLFloaterReg::add("chat_voice", "floater_voice_chat_volume.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterChatVoiceVolume>);
     LLFloaterReg::add("change_item_thumbnail", "floater_change_item_thumbnail.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterChangeItemThumbnail>);
 	LLFloaterReg::add("nearby_chat", "floater_im_session.xml", (LLFloaterBuildFunc)&LLFloaterIMNearbyChat::buildFloater);
-    LLFloaterReg::add("classified", "floater_classified.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterClassified>);
+	LLFloaterReg::add("classified", "floater_classified.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterClassified>);
 	LLFloaterReg::add("compile_queue", "floater_script_queue.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterCompileQueue>);
 	LLFloaterReg::add("conversation", "floater_conversation_log.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterConversationLog>);
 	LLFloaterReg::add("add_landmark", "floater_create_landmark.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterCreateLandmark>);
@@ -347,18 +349,20 @@ void LLViewerFloaterReg::registerFloaters()
 	LLFloaterReg::add("delete_pref_preset", "floater_delete_pref_preset.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterDeletePrefPreset>);
 	LLFloaterReg::add("destinations", "floater_destinations.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterDestinations>);
 
+	LLFloaterReg::add("emoji_picker", "floater_emoji_picker.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterEmojiPicker>);
+	LLFloaterReg::add("emoji_complete", "floater_emoji_complete.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterEmojiComplete>);
 	LLFloaterReg::add("env_post_process", "floater_post_process.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterPostProcess>);
 
-    LLFloaterReg::add("env_fixed_environmentent_water", "floater_fixedenvironment.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterFixedEnvironmentWater>);
-    LLFloaterReg::add("env_fixed_environmentent_sky", "floater_fixedenvironment.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterFixedEnvironmentSky>);
+	LLFloaterReg::add("env_fixed_environmentent_water", "floater_fixedenvironment.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterFixedEnvironmentWater>);
+	LLFloaterReg::add("env_fixed_environmentent_sky", "floater_fixedenvironment.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterFixedEnvironmentSky>);
 
-    LLFloaterReg::add("env_adjust_snapshot", "floater_adjust_environment.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterEnvironmentAdjust>);
+	LLFloaterReg::add("env_adjust_snapshot", "floater_adjust_environment.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterEnvironmentAdjust>);
 
-    LLFloaterReg::add("env_edit_extdaycycle", "floater_edit_ext_day_cycle.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterEditExtDayCycle>);
-    LLFloaterReg::add("my_environments", "floater_my_environments.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterMyEnvironment>);
+	LLFloaterReg::add("env_edit_extdaycycle", "floater_edit_ext_day_cycle.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterEditExtDayCycle>);
+	LLFloaterReg::add("my_environments", "floater_my_environments.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterMyEnvironment>);
 
-    LLFloaterReg::add("event", "floater_event.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterEvent>);
-    LLFloaterReg::add("experiences", "floater_experiences.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterExperiences>);
+	LLFloaterReg::add("event", "floater_event.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterEvent>);
+	LLFloaterReg::add("experiences", "floater_experiences.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterExperiences>);
 	LLFloaterReg::add("experience_profile", "floater_experienceprofile.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterExperienceProfile>);
 	LLFloaterReg::add("experience_search", "floater_experience_search.xml", (LLFloaterBuildFunc)&LLFloaterReg::build<LLFloaterExperiencePicker>);
 
diff --git a/indra/newview/llviewerhelp.h b/indra/newview/llviewerhelp.h
index da50e07a43..bbd20bc07e 100644
--- a/indra/newview/llviewerhelp.h
+++ b/indra/newview/llviewerhelp.h
@@ -43,21 +43,21 @@ class LLViewerHelp : public LLHelp, public LLSingleton<LLViewerHelp>
 
  public:
 	/// display the specified help topic in the help viewer
-	/*virtual*/ void showTopic(const std::string &topic);
+	/*virtual*/ void showTopic(const std::string &topic) override;
 
-	std::string getURL(const std::string& topic);
+	std::string getURL(const std::string& topic) override;
 
 	// return topic derived from viewer UI focus, else default topic
 	std::string getTopicFromFocus();
 
 	/// return default (fallback) topic name suitable for showTopic()
-	/*virtual*/ std::string defaultTopic();
+	/*virtual*/ std::string defaultTopic() override;
 
 	// return topic to use before the user logs in
-	/*virtual*/ std::string preLoginTopic();
+	/*virtual*/ std::string preLoginTopic() override;
 
 	// return topic to use for the top-level help, invoked by F1
-	/*virtual*/ std::string f1HelpTopic();
+	/*virtual*/ std::string f1HelpTopic() override;
 };
 
 #endif // header guard
diff --git a/indra/newview/llviewermedia.h b/indra/newview/llviewermedia.h
index f1f42afd81..ad7c4bcefa 100644
--- a/indra/newview/llviewermedia.h
+++ b/indra/newview/llviewermedia.h
@@ -74,7 +74,7 @@ class LLViewerMedia: public LLSingleton<LLViewerMedia>
 {
 	LLSINGLETON(LLViewerMedia);
 	~LLViewerMedia();
-	void initSingleton();
+	void initSingleton() override;
 	LOG_CLASS(LLViewerMedia);
 
 public:
diff --git a/indra/newview/llviewermediafocus.h b/indra/newview/llviewermediafocus.h
index effd08a559..2310e4dbfc 100644
--- a/indra/newview/llviewermediafocus.h
+++ b/indra/newview/llviewermediafocus.h
@@ -54,10 +54,10 @@ public:
 	void setHoverFace(LLPointer<LLViewerObject> objectp, S32 face, viewer_media_t media_impl, LLVector3 pick_normal = LLVector3::zero);
 	void clearHover();
 	
-	/*virtual*/ bool	getFocus();
-	/*virtual*/ BOOL	handleKey(KEY key, MASK mask, BOOL called_from_parent);
-	/*virtual*/ BOOL	handleKeyUp(KEY key, MASK mask, BOOL called_from_parent);
-	/*virtual*/ BOOL	handleUnicodeChar(llwchar uni_char, BOOL called_from_parent);
+	bool	getFocus();
+	/*virtual*/ BOOL	handleKey(KEY key, MASK mask, BOOL called_from_parent) override;
+	/*virtual*/ BOOL	handleKeyUp(KEY key, MASK mask, BOOL called_from_parent) override;
+	/*virtual*/ BOOL	handleUnicodeChar(llwchar uni_char, BOOL called_from_parent) override;
 	BOOL handleScrollWheel(const LLVector2& texture_coords, S32 clicks_x, S32 clicks_y);
 	BOOL handleScrollWheel(S32 x, S32 y, S32 clicks_x, S32 clicks_y);
 
@@ -92,12 +92,12 @@ public:
 	LLUUID getControlsMediaID();
 
     // The MoaP object wants keyup and keydown events.  Overridden to return true.
-    virtual bool    wantsKeyUpKeyDown() const;
-    virtual bool    wantsReturnKey() const;
+    virtual bool    wantsKeyUpKeyDown() const override;
+    virtual bool    wantsReturnKey() const override;
 
 protected:
-	/*virtual*/ void	onFocusReceived();
-	/*virtual*/ void	onFocusLost();
+	/*virtual*/ void	onFocusReceived() override;
+	/*virtual*/ void	onFocusLost() override;
 
 private:
 	
diff --git a/indra/newview/llviewermenu.cpp b/indra/newview/llviewermenu.cpp
index 9db9d97ddc..2cf341f87f 100644
--- a/indra/newview/llviewermenu.cpp
+++ b/indra/newview/llviewermenu.cpp
@@ -1437,6 +1437,30 @@ class LLAdvancedCheckDebugViews : public view_listener_t
 
 
 
+///////////////////
+// DEBUG UNICODE //
+///////////////////
+
+
+class LLAdvancedToggleDebugUnicode : public view_listener_t
+{
+	bool handleEvent(const LLSD& userdata)
+	{
+		LLView::sDebugUnicode = !(LLView::sDebugUnicode);
+		return true;
+	}
+};
+
+class LLAdvancedCheckDebugUnicode : public view_listener_t
+{
+	bool handleEvent(const LLSD& userdata)
+	{
+		return LLView::sDebugUnicode;
+	}
+};
+
+
+
 ///////////////////////
 // XUI NAME TOOLTIPS //
 ///////////////////////
@@ -8509,23 +8533,8 @@ void handle_show_url(const LLSD& param)
 
 void handle_report_bug(const LLSD& param)
 {
-	LLUIString url(param.asString());
-	
-	LLStringUtil::format_map_t replace;
-	std::string environment = LLAppViewer::instance()->getViewerInfoString(true);
-	boost::regex regex;
-	regex.assign("</?nolink>");
-	std::string stripped_env = boost::regex_replace(environment, regex, "");
-
-	replace["[ENVIRONMENT]"] = LLURI::escape(stripped_env);
-	LLSLURL location_url;
-	LLAgentUI::buildSLURL(location_url);
-	replace["[LOCATION]"] = LLURI::escape(location_url.getSLURLString());
-
-	LLUIString file_bug_url = gSavedSettings.getString("ReportBugURL");
-	file_bug_url.setArgs(replace);
-
-	LLWeb::loadURLExternal(file_bug_url.getString());
+    std::string url = gSavedSettings.getString("ReportBugURL");
+    LLWeb::loadURLExternal(url);
 }
 
 void handle_buy_currency_test(void*)
@@ -9524,6 +9533,8 @@ void initialize_menus()
 	view_listener_t::addMenu(new LLAdvancedCheckDebugClicks(), "Advanced.CheckDebugClicks");
 	view_listener_t::addMenu(new LLAdvancedCheckDebugViews(), "Advanced.CheckDebugViews");
 	view_listener_t::addMenu(new LLAdvancedToggleDebugViews(), "Advanced.ToggleDebugViews");
+	view_listener_t::addMenu(new LLAdvancedCheckDebugUnicode(), "Advanced.CheckDebugUnicode");
+	view_listener_t::addMenu(new LLAdvancedToggleDebugUnicode(), "Advanced.ToggleDebugUnicode");
 	view_listener_t::addMenu(new LLAdvancedToggleXUINameTooltips(), "Advanced.ToggleXUINameTooltips");
 	view_listener_t::addMenu(new LLAdvancedCheckXUINameTooltips(), "Advanced.CheckXUINameTooltips");
 	view_listener_t::addMenu(new LLAdvancedToggleDebugMouseEvents(), "Advanced.ToggleDebugMouseEvents");
@@ -9623,7 +9634,11 @@ void initialize_menus()
 	
 	//Develop (clear cache immediately)
 	commit.add("Develop.ClearCache", boost::bind(&handle_cache_clear_immediately) );
-    
+
+	// Develop (Fonts debugging)
+	commit.add("Develop.Fonts.Dump", boost::bind(&LLFontGL::dumpFonts));
+	commit.add("Develop.Fonts.DumpTextures", boost::bind(&LLFontGL::dumpFontTextures));
+
 	// Admin >Object
 	view_listener_t::addMenu(new LLAdminForceTakeCopy(), "Admin.ForceTakeCopy");
 	view_listener_t::addMenu(new LLAdminHandleObjectOwnerSelf(), "Admin.HandleObjectOwnerSelf");
diff --git a/indra/newview/llviewerparcelaskplay.h b/indra/newview/llviewerparcelaskplay.h
index dc711917d2..56faddae66 100644
--- a/indra/newview/llviewerparcelaskplay.h
+++ b/indra/newview/llviewerparcelaskplay.h
@@ -34,8 +34,8 @@ class LLViewerParcelAskPlay : public LLSingleton<LLViewerParcelAskPlay>
 {
     LLSINGLETON(LLViewerParcelAskPlay);
     ~LLViewerParcelAskPlay();
-    void initSingleton();
-    void cleanupSingleton();
+    void initSingleton() override;
+    void cleanupSingleton() override;
 public:
     // functor expects functor(region_id, parcel_id, url, play/stop)
     typedef boost::function<void(const LLUUID&, const S32&, const std::string&, const bool&)> ask_callback;
diff --git a/indra/newview/llviewerparcelmedia.h b/indra/newview/llviewerparcelmedia.h
index 779a65bdf8..790b2b71fc 100644
--- a/indra/newview/llviewerparcelmedia.h
+++ b/indra/newview/llviewerparcelmedia.h
@@ -74,7 +74,7 @@ public:
 	void sendMediaNavigateMessage(const std::string& url);
 
 	// inherited from LLViewerMediaObserver
-	virtual void handleMediaEvent(LLPluginClassMedia* self, EMediaEvent event);
+	virtual void handleMediaEvent(LLPluginClassMedia* self, EMediaEvent event) override;
 
 private:
 	void processParcelMediaCommandMessage(LLMessageSystem *msg);
diff --git a/indra/newview/llviewerparcelmediaautoplay.h b/indra/newview/llviewerparcelmediaautoplay.h
index d71fd4c075..e83085dee0 100644
--- a/indra/newview/llviewerparcelmediaautoplay.h
+++ b/indra/newview/llviewerparcelmediaautoplay.h
@@ -35,7 +35,7 @@ class LLViewerParcelMediaAutoPlay : LLEventTimer, public LLSingleton<LLViewerPar
 {
 	LLSINGLETON(LLViewerParcelMediaAutoPlay);
 public:
-	virtual BOOL tick();
+	virtual BOOL tick() override;
 	static void playStarted();
 
  private:
diff --git a/indra/newview/llviewertexturelist.h b/indra/newview/llviewertexturelist.h
index e8dd96daee..10a2cfa32a 100644
--- a/indra/newview/llviewertexturelist.h
+++ b/indra/newview/llviewertexturelist.h
@@ -244,9 +244,9 @@ class LLUIImageList : public LLImageProviderInterface, public LLSingleton<LLUIIm
 	LLSINGLETON_EMPTY_CTOR(LLUIImageList);
 public:
 	// LLImageProviderInterface
-	/*virtual*/ LLPointer<LLUIImage> getUIImageByID(const LLUUID& id, S32 priority);
-	/*virtual*/ LLPointer<LLUIImage> getUIImage(const std::string& name, S32 priority);
-	void cleanUp();
+	/*virtual*/ LLPointer<LLUIImage> getUIImageByID(const LLUUID& id, S32 priority) override;
+	/*virtual*/ LLPointer<LLUIImage> getUIImage(const std::string& name, S32 priority) override;
+	void cleanUp() override;
 
 	bool initFromFile();
 
diff --git a/indra/newview/llviewerwindow.cpp b/indra/newview/llviewerwindow.cpp
index ed671fe849..47c7eed872 100644
--- a/indra/newview/llviewerwindow.cpp
+++ b/indra/newview/llviewerwindow.cpp
@@ -955,8 +955,7 @@ public:
 		{
 			const Line& line = *iter;
 			LLFontGL::getFontMonospace()->renderUTF8(line.text, 0, (F32)line.x, (F32)line.y, mTextColor,
-											 LLFontGL::LEFT, LLFontGL::TOP,
-											 LLFontGL::NORMAL, LLFontGL::NO_SHADOW, S32_MAX, S32_MAX, NULL, FALSE);
+					LLFontGL::LEFT, LLFontGL::TOP, LLFontGL::NORMAL, LLFontGL::NO_SHADOW);
 		}
 	}
 
@@ -3000,6 +2999,7 @@ BOOL LLViewerWindow::handleKey(KEY key, MASK mask)
 					case KEY_PAGE_UP:
 					case KEY_PAGE_DOWN:
 					case KEY_HOME:
+					case KEY_END:
 						// when chatbar is empty or ArrowKeysAlwaysMove set,
 						// pass arrow keys on to avatar...
 						return FALSE;
diff --git a/indra/newview/llvoicechannel.h b/indra/newview/llvoicechannel.h
index 309c3eebdd..e68bfbe1ff 100644
--- a/indra/newview/llvoicechannel.h
+++ b/indra/newview/llvoicechannel.h
@@ -170,12 +170,12 @@ class LLVoiceChannelProximal : public LLVoiceChannel, public LLSingleton<LLVoice
 	LLSINGLETON(LLVoiceChannelProximal);
 public:
 
-	/*virtual*/ void onChange(EStatusType status, const std::string &channelURI, bool proximal);
-	/*virtual*/ void handleStatusChange(EStatusType status);
-	/*virtual*/ void handleError(EStatusType status);
-	/*virtual*/ BOOL isActive();
-	/*virtual*/ void activate();
-	/*virtual*/ void deactivate();
+	/*virtual*/ void onChange(EStatusType status, const std::string &channelURI, bool proximal) override;
+	/*virtual*/ void handleStatusChange(EStatusType status) override;
+	/*virtual*/ void handleError(EStatusType status) override;
+	/*virtual*/ BOOL isActive() override;
+	/*virtual*/ void activate() override;
+	/*virtual*/ void deactivate() override;
 
 };
 
@@ -184,15 +184,15 @@ class LLVoiceChannelP2P : public LLVoiceChannelGroup
 public:
 	LLVoiceChannelP2P(const LLUUID& session_id, const std::string& session_name, const LLUUID& other_user_id);
 
-	/*virtual*/ void handleStatusChange(EStatusType status);
-	/*virtual*/ void handleError(EStatusType status);
-    /*virtual*/ void activate();
-	/*virtual*/ void getChannelInfo();
+	/*virtual*/ void handleStatusChange(EStatusType status) override;
+	/*virtual*/ void handleError(EStatusType status) override;
+    /*virtual*/ void activate() override;
+	/*virtual*/ void getChannelInfo() override;
 
 	void setSessionHandle(const std::string& handle, const std::string &inURI);
 
 protected:
-	virtual void setState(EState state);
+	virtual void setState(EState state) override;
 
 private:
 
diff --git a/indra/newview/llvoicevivox.h b/indra/newview/llvoicevivox.h
index e3ab99c675..ae2aec0e9c 100644
--- a/indra/newview/llvoicevivox.h
+++ b/indra/newview/llvoicevivox.h
@@ -64,26 +64,26 @@ public:
 	/// @name LLVoiceModuleInterface virtual implementations
 	///  @see LLVoiceModuleInterface
 	//@{
-	virtual void init(LLPumpIO *pump);	// Call this once at application startup (creates connector)
-	virtual void terminate();	// Call this to clean up during shutdown
+	virtual void init(LLPumpIO *pump) override;	// Call this once at application startup (creates connector)
+	virtual void terminate() override;	// Call this to clean up during shutdown
 	
-	virtual const LLVoiceVersionInfo& getVersion();
+	virtual const LLVoiceVersionInfo& getVersion() override;
 	
-	virtual void updateSettings(); // call after loading settings and whenever they change
+	virtual void updateSettings() override; // call after loading settings and whenever they change
 
 	// Returns true if vivox has successfully logged in and is not in error state	
-	virtual bool isVoiceWorking() const;
+	virtual bool isVoiceWorking() const override;
 
 	/////////////////////
 	/// @name Tuning
 	//@{
-	virtual void tuningStart();
-	virtual void tuningStop();
-	virtual bool inTuningMode();
+	virtual void tuningStart() override;
+	virtual void tuningStop() override;
+	virtual bool inTuningMode() override;
 	
-	virtual void tuningSetMicVolume(float volume);
-	virtual void tuningSetSpeakerVolume(float volume);
-	virtual float tuningGetEnergy(void);
+	virtual void tuningSetMicVolume(float volume) override;
+	virtual void tuningSetSpeakerVolume(float volume) override;
+	virtual float tuningGetEnergy(void) override;
 	//@}
 	
 	/////////////////////
@@ -91,40 +91,40 @@ public:
 	//@{
 	// This returns true when it's safe to bring up the "device settings" dialog in the prefs.
 	// i.e. when the daemon is running and connected, and the device lists are populated.
-	virtual bool deviceSettingsAvailable();
-	virtual bool deviceSettingsUpdated();  //return if the list has been updated and never fetched,  only to be called from the voicepanel.
+	virtual bool deviceSettingsAvailable() override;
+	virtual bool deviceSettingsUpdated() override;  //return if the list has been updated and never fetched,  only to be called from the voicepanel.
 	
 	// Requery the vivox daemon for the current list of input/output devices.
 	// If you pass true for clearCurrentList, deviceSettingsAvailable() will be false until the query has completed
 	// (use this if you want to know when it's done).
 	// If you pass false, you'll have no way to know when the query finishes, but the device lists will not appear empty in the interim.
-	virtual void refreshDeviceLists(bool clearCurrentList = true);
+	virtual void refreshDeviceLists(bool clearCurrentList = true) override;
 	
-	virtual void setCaptureDevice(const std::string& name);
-	virtual void setRenderDevice(const std::string& name);
+	virtual void setCaptureDevice(const std::string& name) override;
+	virtual void setRenderDevice(const std::string& name) override;
 	
-	virtual LLVoiceDeviceList& getCaptureDevices();
-	virtual LLVoiceDeviceList& getRenderDevices();
+	virtual LLVoiceDeviceList& getCaptureDevices() override;
+	virtual LLVoiceDeviceList& getRenderDevices() override;
 	//@}	
 	
-	virtual void getParticipantList(std::set<LLUUID> &participants);
-	virtual bool isParticipant(const LLUUID& speaker_id);
+	virtual void getParticipantList(std::set<LLUUID> &participants) override;
+	virtual bool isParticipant(const LLUUID& speaker_id) override;
 
 	// Send a text message to the specified user, initiating the session if necessary.
 	// virtual BOOL sendTextMessage(const LLUUID& participant_id, const std::string& message) const {return false;};
 	
 	// close any existing text IM session with the specified user
-	virtual void endUserIMSession(const LLUUID &uuid);
+	virtual void endUserIMSession(const LLUUID &uuid) override;
 
 	// Returns true if calling back the session URI after the session has closed is possible.
 	// Currently this will be false only for PSTN P2P calls.		
 	// NOTE: this will return true if the session can't be found. 
-	virtual BOOL isSessionCallBackPossible(const LLUUID &session_id);
+	virtual BOOL isSessionCallBackPossible(const LLUUID &session_id) override;
 	
 	// Returns true if the session can accepte text IM's.
 	// Currently this will be false only for PSTN P2P calls.
 	// NOTE: this will return true if the session can't be found. 
-	virtual BOOL isSessionTextIMPossible(const LLUUID &session_id);
+	virtual BOOL isSessionTextIMPossible(const LLUUID &session_id) override;
 	
 	
 	////////////////////////////
@@ -132,21 +132,21 @@ public:
 	//@{
 	// returns true iff the user is currently in a proximal (local spatial) channel.
 	// Note that gestures should only fire if this returns true.
-	virtual bool inProximalChannel();
+	virtual bool inProximalChannel() override;
 	
 	virtual void setNonSpatialChannel(const std::string &uri,
-									  const std::string &credentials);
+									  const std::string &credentials) override;
 	
 	virtual bool setSpatialChannel(const std::string &uri,
-								   const std::string &credentials);
+								   const std::string &credentials) override;
 	
-	virtual void leaveNonSpatialChannel();
+	virtual void leaveNonSpatialChannel() override;
 	
-	virtual void leaveChannel(void);	
+	virtual void leaveChannel(void) override;
 	
 	// Returns the URI of the current channel, or an empty string if not currently in a channel.
 	// NOTE that it will return an empty string if it's in the process of joining a channel.
-	virtual std::string getCurrentChannel();
+	virtual std::string getCurrentChannel() override;
 	//@}
 	
 	
@@ -154,59 +154,59 @@ public:
 	/// @name invitations
 	//@{
 	// start a voice channel with the specified user
-	virtual void callUser(const LLUUID &uuid);	
-	virtual bool isValidChannel(std::string &channelHandle);
-	virtual bool answerInvite(std::string &channelHandle);
-	virtual void declineInvite(std::string &channelHandle);
+	virtual void callUser(const LLUUID &uuid) override;
+	virtual bool isValidChannel(std::string &channelHandle) override;
+	virtual bool answerInvite(std::string &channelHandle) override;
+	virtual void declineInvite(std::string &channelHandle) override;
 	//@}
 	
 	/////////////////////////
 	/// @name Volume/gain
 	//@{
-	virtual void setVoiceVolume(F32 volume);
-	virtual void setMicGain(F32 volume);
+	virtual void setVoiceVolume(F32 volume) override;
+	virtual void setMicGain(F32 volume) override;
 	//@}
 	
 	/////////////////////////
 	/// @name enable disable voice and features
 	//@{
-	virtual bool voiceEnabled();
-	virtual void setVoiceEnabled(bool enabled);
-	virtual BOOL lipSyncEnabled();	
-	virtual void setLipSyncEnabled(BOOL enabled);
-	virtual void setMuteMic(bool muted);		// Set the mute state of the local mic.
+	virtual bool voiceEnabled() override;
+	virtual void setVoiceEnabled(bool enabled) override;
+	virtual BOOL lipSyncEnabled() override;
+	virtual void setLipSyncEnabled(BOOL enabled) override;
+	virtual void setMuteMic(bool muted) override;		// Set the mute state of the local mic.
 	//@}
 		
 	//////////////////////////
 	/// @name nearby speaker accessors
 	//@{
-	virtual BOOL getVoiceEnabled(const LLUUID& id);		// true if we've received data for this avatar
-	virtual std::string getDisplayName(const LLUUID& id);
-	virtual BOOL isParticipantAvatar(const LLUUID &id);
-	virtual BOOL getIsSpeaking(const LLUUID& id);
-	virtual BOOL getIsModeratorMuted(const LLUUID& id);
-	virtual F32 getCurrentPower(const LLUUID& id);		// "power" is related to "amplitude" in a defined way.  I'm just not sure what the formula is...
-	virtual BOOL getOnMuteList(const LLUUID& id);
-	virtual F32 getUserVolume(const LLUUID& id);
-	virtual void setUserVolume(const LLUUID& id, F32 volume); // set's volume for specified agent, from 0-1 (where .5 is nominal)	
+	virtual BOOL getVoiceEnabled(const LLUUID& id) override;		// true if we've received data for this avatar
+	virtual std::string getDisplayName(const LLUUID& id) override;
+	virtual BOOL isParticipantAvatar(const LLUUID &id) override;
+	virtual BOOL getIsSpeaking(const LLUUID& id) override;
+	virtual BOOL getIsModeratorMuted(const LLUUID& id) override;
+	virtual F32 getCurrentPower(const LLUUID& id) override;		// "power" is related to "amplitude" in a defined way.  I'm just not sure what the formula is...
+	virtual BOOL getOnMuteList(const LLUUID& id) override;
+	virtual F32 getUserVolume(const LLUUID& id) override;
+	virtual void setUserVolume(const LLUUID& id, F32 volume) override; // set's volume for specified agent, from 0-1 (where .5 is nominal)
 	//@}
 	
 	// authorize the user
 	virtual void userAuthorized(const std::string& user_id,
-								const LLUUID &agentID);
+								const LLUUID &agentID) override;
 	
 	//////////////////////////////
 	/// @name Status notification
 	//@{
-	virtual void addObserver(LLVoiceClientStatusObserver* observer);
-	virtual void removeObserver(LLVoiceClientStatusObserver* observer);
-	virtual void addObserver(LLFriendObserver* observer);
-	virtual void removeObserver(LLFriendObserver* observer);		
-	virtual void addObserver(LLVoiceClientParticipantObserver* observer);
-	virtual void removeObserver(LLVoiceClientParticipantObserver* observer);
+	virtual void addObserver(LLVoiceClientStatusObserver* observer) override;
+	virtual void removeObserver(LLVoiceClientStatusObserver* observer) override;
+	virtual void addObserver(LLFriendObserver* observer) override;
+	virtual void removeObserver(LLFriendObserver* observer) override;
+	virtual void addObserver(LLVoiceClientParticipantObserver* observer) override;
+	virtual void removeObserver(LLVoiceClientParticipantObserver* observer) override;
 	//@}
 	
-	virtual std::string sipURIFromID(const LLUUID &id);
+	virtual std::string sipURIFromID(const LLUUID &id) override;
 	//@}
 
 	/// @name LLVoiceEffectInterface virtual implementations
@@ -216,32 +216,32 @@ public:
 	//////////////////////////
 	/// @name Accessors
 	//@{
-	virtual bool setVoiceEffect(const LLUUID& id);
-	virtual const LLUUID getVoiceEffect();
-	virtual LLSD getVoiceEffectProperties(const LLUUID& id);
+	virtual bool setVoiceEffect(const LLUUID& id) override;
+	virtual const LLUUID getVoiceEffect() override;
+	virtual LLSD getVoiceEffectProperties(const LLUUID& id) override;
 
-	virtual void refreshVoiceEffectLists(bool clear_lists);
-	virtual const voice_effect_list_t& getVoiceEffectList() const;
-	virtual const voice_effect_list_t& getVoiceEffectTemplateList() const;
+	virtual void refreshVoiceEffectLists(bool clear_lists) override;
+	virtual const voice_effect_list_t& getVoiceEffectList() const override;
+	virtual const voice_effect_list_t& getVoiceEffectTemplateList() const override;
 	//@}
 
 	//////////////////////////////
 	/// @name Status notification
 	//@{
-	virtual void addObserver(LLVoiceEffectObserver* observer);
-	virtual void removeObserver(LLVoiceEffectObserver* observer);
+	virtual void addObserver(LLVoiceEffectObserver* observer) override;
+	virtual void removeObserver(LLVoiceEffectObserver* observer) override;
 	//@}
 
 	//////////////////////////////
 	/// @name Effect preview buffer
 	//@{
-	virtual void enablePreviewBuffer(bool enable);
-	virtual void recordPreviewBuffer();
-	virtual void playPreviewBuffer(const LLUUID& effect_id = LLUUID::null);
-	virtual void stopPreviewBuffer();
+	virtual void enablePreviewBuffer(bool enable) override;
+	virtual void recordPreviewBuffer() override;
+	virtual void playPreviewBuffer(const LLUUID& effect_id = LLUUID::null) override;
+	virtual void stopPreviewBuffer() override;
 
-	virtual bool isPreviewRecording();
-	virtual bool isPreviewPlaying();
+	virtual bool isPreviewRecording() override;
+	virtual bool isPreviewPlaying() override;
 	//@}
 
 	//@}
@@ -750,7 +750,7 @@ private:
 	std::string getAudioSessionURI();
 	std::string getAudioSessionHandle();
 			
-    void setHidden(bool hidden); //virtual
+    void setHidden(bool hidden) override; //virtual
 	void sendPositionAndVolumeUpdate(void);
 	
     void sendCaptureAndRenderDevices();
diff --git a/indra/newview/llvotree.cpp b/indra/newview/llvotree.cpp
index 36e6da802b..575b1dbe7e 100644
--- a/indra/newview/llvotree.cpp
+++ b/indra/newview/llvotree.cpp
@@ -865,6 +865,10 @@ BOOL LLVOTree::updateGeometry(LLDrawable *drawable)
 		mReferenceBuffer->unmapBuffer();
 		llassert(vertex_count == max_vertices);
 		llassert(index_count == max_indices);
+#ifndef SHOW_ASSERT
+        (void)vertex_count;
+        (void)index_count;
+#endif
 	}
 
 	//generate tree mesh
diff --git a/indra/newview/llwearableitemslist.h b/indra/newview/llwearableitemslist.h
index f7774a7086..0dbe50d5e4 100644
--- a/indra/newview/llwearableitemslist.h
+++ b/indra/newview/llwearableitemslist.h
@@ -428,7 +428,7 @@ public:
 	{
 		LLSINGLETON(ContextMenu);
 	public:
-		/*virtual*/ void show(LLView* spawning_view, const uuid_vec_t& uuids, S32 x, S32 y);
+		/*virtual*/ void show(LLView* spawning_view, const uuid_vec_t& uuids, S32 x, S32 y) override;
 
 		void show(LLView* spawning_view, LLWearableType::EType w_type, S32 x, S32 y);
 
@@ -441,7 +441,7 @@ public:
 			MASK_UNKNOWN		= 0x10,
 		};
 
-		/* virtual */ LLContextMenu* createMenu();
+		/* virtual */ LLContextMenu* createMenu() override;
 		void updateItemsVisibility(LLContextMenu* menu);
 		void updateItemsLabels(LLContextMenu* menu);
 		static void setMenuItemVisible(LLContextMenu* menu, const std::string& name, bool val);
@@ -472,7 +472,7 @@ public:
 
 	virtual ~LLWearableItemsList();
 
-	/*virtual*/ LLPanel* createNewItem(LLViewerInventoryItem* item);
+	/*virtual*/ LLPanel* createNewItem(LLViewerInventoryItem* item) override;
 
 	void updateList(const LLUUID& category_id);
 
diff --git a/indra/newview/llwindebug.h b/indra/newview/llwindebug.h
index 524adba652..31dbfb8ffd 100644
--- a/indra/newview/llwindebug.h
+++ b/indra/newview/llwindebug.h
@@ -40,9 +40,9 @@ class LLWinDebug:
 {
 	LLSINGLETON_EMPTY_CTOR(LLWinDebug);
 public:
-	void initSingleton();
+	void initSingleton() override;
 	static void generateMinidump(struct _EXCEPTION_POINTERS *pExceptionInfo = NULL);
-	void cleanupSingleton();
+	void cleanupSingleton() override;
 private:
 	static void writeDumpToFile(MINIDUMP_TYPE type, MINIDUMP_EXCEPTION_INFORMATION *ExInfop, const std::string& filename);
 };
diff --git a/indra/newview/llworldmapview.cpp b/indra/newview/llworldmapview.cpp
index cc947c87d5..a8676d2ad6 100755
--- a/indra/newview/llworldmapview.cpp
+++ b/indra/newview/llworldmapview.cpp
@@ -520,7 +520,7 @@ void LLWorldMapView::draw()
 					S32_MAX, //max_chars
 					mMapScale, //max_pixels
 					NULL,
-					TRUE); //use ellipses
+					/*use_ellipses*/TRUE);
 			}
 		}
 	}
diff --git a/indra/newview/skins/default/textures/icons/emoji_picker_icon.png b/indra/newview/skins/default/textures/icons/emoji_picker_icon.png
new file mode 100644
index 0000000000..ad4f3fa63c
--- /dev/null
+++ b/indra/newview/skins/default/textures/icons/emoji_picker_icon.png
diff --git a/indra/newview/skins/default/textures/textures.xml b/indra/newview/skins/default/textures/textures.xml
index 2126db32df..1a49ec7e24 100644
--- a/indra/newview/skins/default/textures/textures.xml
+++ b/indra/newview/skins/default/textures/textures.xml
@@ -206,6 +206,7 @@ with the same filename but different name
 
   <texture name="DropTarget" file_name="widgets/DropTarget.png" preload="false" />
 
+  <texture name="Emoji_Picker_Icon" file_name="icons/emoji_picker_icon.png" preload="true" />
   <texture name="ExternalBrowser_Off" file_name="icons/ExternalBrowser_Off.png" preload="false" />
   <texture name="Edit_Wrench" file_name="icons/Edit_Wrench.png" preload="false" />
 
@@ -213,7 +214,7 @@ with the same filename but different name
 
   <texture name="Presets_Icon" file_name="icons/Presets_Icon.png" preload="true" />
   <texture name="Presets_Icon_Graphic" file_name="icons/Presets_Icon_Graphic.png" preload="true" />
- <texture name="Favorite_Star_Active" file_name="navbar/Favorite_Star_Active.png" preload="false" />
+  <texture name="Favorite_Star_Active" file_name="navbar/Favorite_Star_Active.png" preload="false" />
   <texture name="Favorite_Star_Off" file_name="navbar/Favorite_Star_Off.png" preload="false" />
   <texture name="Favorite_Star_Press" file_name="navbar/Favorite_Star_Press.png" preload="false" />
   <texture name="Favorite_Star_Over" file_name="navbar/Favorite_Star_Over.png" preload="false" />
@@ -342,7 +343,7 @@ with the same filename but different name
   <texture name="Inv_Underpants" file_name="icons/Inv_Underpants.png" preload="false" />
   <texture name="Inv_Undershirt" file_name="icons/Inv_Undershirt.png" preload="false" />
   <texture name="Inv_Link" file_name="icons/Inv_Link.png" preload="false" />
-    <texture name="Inv_Settings" file_name="icons/Inv_Settings.png" preload="false" />
+  <texture name="Inv_Settings" file_name="icons/Inv_Settings.png" preload="false" />
   <texture name="Inv_SettingsSky" file_name="icons/Inv_SettingsSky.png" preload="false" />
   <texture name="Inv_SettingsWater" file_name="icons/Inv_SettingsWater.png" preload="false" />
   <texture name="Inv_SettingsDay" file_name="icons/Inv_SettingsDay.png" preload="false" />
diff --git a/indra/newview/skins/default/xui/da/emoji_categories.xml b/indra/newview/skins/default/xui/da/emoji_categories.xml
new file mode 100644
index 0000000000..456b18e4e2
--- /dev/null
+++ b/indra/newview/skins/default/xui/da/emoji_categories.xml
@@ -0,0 +1,59 @@
+<?xml version="1.0" ?>
+<llsd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="llsd.xsd">
+  <array>
+    <map>
+      <key>Name</key>
+      <string>smileys and emotion</string>
+      <key>Category</key>
+      <string>smileys and følelser</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>people and body</string>
+      <key>Category</key>
+      <string>mennesker and krop</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>components</string>
+      <key>Category</key>
+      <string>komponenter</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>animals and nature</string>
+      <key>Category</key>
+      <string>dyr and natur</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>food and drink</string>
+      <key>Category</key>
+      <string>mad and drikke</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>travel and places</string>
+      <key>Category</key>
+      <string>rejser and steder</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>activities</string>
+      <key>Category</key>
+      <string>oplevelser</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>objects</string>
+      <key>Category</key>
+      <string>objekter</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>symbols</string>
+      <key>Category</key>
+      <string>symboler</string>
+    </map>
+  </array>
+</llsd>
diff --git a/indra/newview/skins/default/xui/de/emoji_categories.xml b/indra/newview/skins/default/xui/de/emoji_categories.xml
new file mode 100644
index 0000000000..ed63d0bac9
--- /dev/null
+++ b/indra/newview/skins/default/xui/de/emoji_categories.xml
@@ -0,0 +1,59 @@
+<?xml version="1.0" ?>
+<llsd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="llsd.xsd">
+  <array>
+    <map>
+      <key>Name</key>
+      <string>smileys and emotion</string>
+      <key>Category</key>
+      <string>Smileys and Emotionen</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>people and body</string>
+      <key>Category</key>
+      <string>Menschen and Körper</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>components</string>
+      <key>Category</key>
+      <string>Komponenten</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>animals and nature</string>
+      <key>Category</key>
+      <string>Tiere and Natur</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>food and drink</string>
+      <key>Category</key>
+      <string>Essen and Trinken</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>travel and places</string>
+      <key>Category</key>
+      <string>Reisen and Orte</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>activities</string>
+      <key>Category</key>
+      <string>Aktivitäten</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>objects</string>
+      <key>Category</key>
+      <string>Gegenstände</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>symbols</string>
+      <key>Category</key>
+      <string>Symbole</string>
+    </map>
+  </array>
+</llsd>
diff --git a/indra/newview/skins/default/xui/en/emoji_categories.xml b/indra/newview/skins/default/xui/en/emoji_categories.xml
new file mode 100644
index 0000000000..0315d0c43a
--- /dev/null
+++ b/indra/newview/skins/default/xui/en/emoji_categories.xml
@@ -0,0 +1,59 @@
+<?xml version="1.0" ?>
+<llsd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="llsd.xsd">
+  <array>
+    <map>
+      <key>Name</key>
+      <string>smileys and emotion</string>
+      <key>Category</key>
+      <string>smileys and emotion</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>people and body</string>
+      <key>Category</key>
+      <string>people and body</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>components</string>
+      <key>Category</key>
+      <string>components</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>animals and nature</string>
+      <key>Category</key>
+      <string>animals and nature</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>food and drink</string>
+      <key>Category</key>
+      <string>food and drink</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>travel and places</string>
+      <key>Category</key>
+      <string>travel and places</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>activities</string>
+      <key>Category</key>
+      <string>activities</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>objects</string>
+      <key>Category</key>
+      <string>objects</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>symbols</string>
+      <key>Category</key>
+      <string>symbols</string>
+    </map>
+  </array>
+</llsd>
diff --git a/indra/newview/skins/default/xui/en/floater_activeim.xml b/indra/newview/skins/default/xui/en/floater_activeim.xml
index b79c5d9a19..42c3e7e935 100644
--- a/indra/newview/skins/default/xui/en/floater_activeim.xml
+++ b/indra/newview/skins/default/xui/en/floater_activeim.xml
@@ -23,7 +23,7 @@
 		<scrolling_panel_list
 			follows="left|right"
 			layout="topleft"
-      left="1"      
+			left="1"
 			name="chiclet_row_panel_list"
 			width="318"/>
 	</scroll_container>
diff --git a/indra/newview/skins/default/xui/en/floater_emoji_complete.xml b/indra/newview/skins/default/xui/en/floater_emoji_complete.xml
new file mode 100644
index 0000000000..d290d647e8
--- /dev/null
+++ b/indra/newview/skins/default/xui/en/floater_emoji_complete.xml
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
+<floater
+ name="emoji_complete"
+ single_instance="true"
+ layout="topleft"
+ bg_opaque_image="Window_NoTitle_Foreground"
+ bg_alpha_image="Window_NoTitle_Background"
+ can_close="false"
+ can_dock="false"
+ can_drag_on_left="false"
+ can_minimize="false"
+ can_resize="false"
+ can_tear_off="false"
+ header_height="0"
+ legacy_header_height="0"
+ show_title="false"
+ width="240"
+ height="40"
+ >
+	<emoji_complete
+	 name="emoji_complete_ctrl"
+	 follows="top|left"
+	 layout="topleft"
+	 autosize="true"
+	 vertical="true"
+	 max_visible="7"
+	 padding="4"
+	 width="230"
+	 height="30"
+	 left="5"
+	 top="5"
+	 >
+	</emoji_complete>
+</floater>
diff --git a/indra/newview/skins/default/xui/en/floater_emoji_picker.xml b/indra/newview/skins/default/xui/en/floater_emoji_picker.xml
new file mode 100644
index 0000000000..d21f8c82bc
--- /dev/null
+++ b/indra/newview/skins/default/xui/en/floater_emoji_picker.xml
@@ -0,0 +1,65 @@
+<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
+<floater
+    name="emojipicker"
+    title="CHOOSE EMOJI"
+    help_topic="emojipicker"
+    single_instance="true"
+    can_minimize="false"
+    can_tear_off="false"
+    can_resize="true"
+    auto_close="true"
+    layout="topleft"
+    min_width="250"
+    chrome="true"
+    height="350"
+    width="304">
+  <floater.string name="title_for_recently_used" value="Recently used"/>
+  <floater.string name="title_for_frequently_used" value="Frequently used"/>
+  <scroll_container
+      name="EmojiGridContainer"
+      layout="topleft"
+      follows="all"
+      ignore_arrow_keys="true"
+      top="25"
+      left="0"
+      height="275">
+    <scrolling_panel_list
+        name="EmojiGrid"
+        layout="topleft"
+        follows="top|left|right"
+        padding="4"
+        spacing="0"
+        top="0"
+        left="0"/>
+  </scroll_container>
+  <panel
+      name="Groups"
+      layout="topleft"
+      follows="top|left|right"
+      top="0"
+      left="0"
+      height="25">
+    <panel
+      name="Badge"
+      layout="bottomleft"
+      follows="bottom|left"
+      background_visible="true"
+      background_opaque="true"
+      bg_opaque_color="FrogGreen"
+      tab_stop="false"
+      bottom="0"
+      height="2"
+      width="20"
+      />
+  </panel>
+  <text
+      name="Dummy"
+      type="string"
+      layout="bottomleft"
+      follows="bottom|left|right"
+      halign="center"
+      valign="center"
+      bottom="14"
+      left="10"
+      height="25">No emoji selected</text>
+</floater>
diff --git a/indra/newview/skins/default/xui/en/floater_im_session.xml b/indra/newview/skins/default/xui/en/floater_im_session.xml
index da84fbeea6..a6493c5e24 100644
--- a/indra/newview/skins/default/xui/en/floater_im_session.xml
+++ b/indra/newview/skins/default/xui/en/floater_im_session.xml
@@ -238,7 +238,7 @@
                 </layout_stack>
             </layout_panel>
             <layout_panel
-             height="35"
+             height="30"
              auto_resize="false"
              name="chat_layout_panel">
                 <layout_stack
@@ -249,7 +249,7 @@
                  name="input_panels"
                  top="0"
                  bottom="-1"
-                 left="0"
+                 left="1"
                  right="-1">
                     <layout_panel
                      name="input_editor_layout_panel">
@@ -260,7 +260,7 @@
                          default_icon_name="Generic_Person"
                          layout="topleft"
                          left="3"
-                         bottom="-9"
+                         bottom="-4"
                          visible="false"
                          width="20" />
                         <group_icon
@@ -270,7 +270,7 @@
                          default_icon_name="Generic_Group"
                          layout="topleft"
                          left="3"
-                         bottom="-9"
+                         bottom="-4"
                          visible="false"
                          width="20" />
                         <icon
@@ -279,7 +279,7 @@
                          image_name="Nearby_chat_icon"
                          layout="topleft"
                          left="3"
-                         bottom="-9"
+                         bottom="-4"
                          name="nearby_chat_icon"
                          visible="false"
                          width="20"/>
@@ -288,17 +288,31 @@
                          expand_lines_count="5"
                          follows="left|right|bottom"
                          font="SansSerifSmall"
-                         height="20"    
+                         height="20"
                          is_expandable="true"
                          text_tentative_color="TextFgTentativeColor"
+                         bg_writeable_color="ScriptBackground"
                          name="chat_editor"
                          max_length="1023"
                          spellcheck="true"
                          tab_group="3"
-                         bottom="-8"
+                         bottom="-3"
                          left_pad="5"
-                         right="-5"
+                         right="-30"
                          wrap="true" />
+                        <button
+                         name="emoji_recent_panel_toggle_btn"
+                         tool_tip="Shows/hides recent emojis"
+                         follows="right|bottom"
+                         font="EmojiLarge"
+                         image_hover_unselected="Toolbar_Middle_Over"
+                         image_selected="Toolbar_Middle_Selected"
+                         image_unselected="Toolbar_Middle_Off"
+                         image_overlay="Emoji_Picker_Icon"
+                         bottom="-2"
+                         right="-1"
+                         height="25"
+                         width="25"/>
                     </layout_panel>
                     <layout_panel
                      auto_resize="false"
@@ -319,6 +333,42 @@
                     </layout_panel>
                 </layout_stack>
             </layout_panel>
+            <layout_panel
+             name="emoji_recent_layout_panel"
+             height="30"
+             auto_resize="false">
+                <text
+                 name="emoji_recent_empty_text"
+                 follows="top|left|right"
+                 layout="topleft"
+                 auto_resize="false"
+                 h_pad="20"
+                 v_pad="10"
+                 top="0"
+                 left="1"
+                 right="-65"
+                 height="30"
+                >Recently used emojis will appear here</text>
+                <emoji_complete
+                 name="emoji_recent_icons_ctrl"
+                 follows="top|left|right"
+                 layout="topleft"
+                 max_visible="20"
+                 top="0"
+                 left="1"
+                 right="-65"
+                 height="30"/>
+                <button
+                 name="emoji_picker_show_btn"
+                 label="More"
+                 tool_tip="Shows/hides emoji picker"
+                 follows="right|bottom"
+                 layout="topleft"
+                 bottom="-5"
+                 right="-3"
+                 height="20"
+                 width="60"/>
+            </layout_panel>
         </layout_stack>
     </view>
 </floater>
diff --git a/indra/newview/skins/default/xui/en/floater_preview_notecard.xml b/indra/newview/skins/default/xui/en/floater_preview_notecard.xml
index dcbdfa8794..ac5467c036 100644
--- a/indra/newview/skins/default/xui/en/floater_preview_notecard.xml
+++ b/indra/newview/skins/default/xui/en/floater_preview_notecard.xml
@@ -73,6 +73,8 @@
      spellcheck="true"
      tab_group="1"
      top="46"
+     use_color="true"
+     show_emoji_helper="true"
      width="392"
      word_wrap="true">
         Loading...
diff --git a/indra/newview/skins/default/xui/en/fonts.xml b/indra/newview/skins/default/xui/en/fonts.xml
index d88c267a95..40045625fd 100644
--- a/indra/newview/skins/default/xui/en/fonts.xml
+++ b/indra/newview/skins/default/xui/en/fonts.xml
@@ -3,6 +3,7 @@
 
   <font name="default" comment="default font files (global fallbacks)">
     <file>DejaVuSans.ttf</file>
+    <file functor="is_emoji">TwemojiSVG.ttf</file>
     <os name="Windows">
       <file>meiryo.TTC</file>
       <file>MSGOTHIC.TTC</file>
@@ -69,6 +70,11 @@
     <file>DejaVuSans-BoldOblique.ttf</file>
   </font>
 
+  <font name="Emoji"
+	comment="Name of emoji font">
+    <file>TwemojiSVG.ttf</file>
+  </font>
+
   <font name="Monospace"
 	comment="Name of monospace font">
     <file>DejaVuSansMono.ttf</file>
diff --git a/indra/newview/skins/default/xui/en/menu_login.xml b/indra/newview/skins/default/xui/en/menu_login.xml
index 96fac1c6e8..40399b33ef 100644
--- a/indra/newview/skins/default/xui/en/menu_login.xml
+++ b/indra/newview/skins/default/xui/en/menu_login.xml
@@ -161,6 +161,32 @@
       <menu_item_separator />
       <menu
        create_jump_keys="true"
+       label="Fonts"
+       name="Fonts"
+       tear_off="true">
+        <menu_item_call
+         label="Show Font Test"
+         name="Show Font Test">
+          <menu_item_call.on_click
+           function="Floater.Show"
+           parameter="font_test" />
+        </menu_item_call>
+        <menu_item_separator />
+        <menu_item_call
+         label="Dump Fonts"
+         name="Dump Fonts">
+          <menu_item_call.on_click
+           function="Develop.Fonts.Dump" />
+        </menu_item_call>
+        <menu_item_call
+         label="Dump Font Textures"
+         name="Dump Font Textures">
+          <menu_item_call.on_click
+           function="Develop.Fonts.DumpTextures" />
+        </menu_item_call>
+      </menu>
+      <menu
+       create_jump_keys="true"
        label="UI Tests"
        name="UI Tests"
        tear_off="true">
diff --git a/indra/newview/skins/default/xui/en/menu_viewer.xml b/indra/newview/skins/default/xui/en/menu_viewer.xml
index 660f4b62c7..38763cd9a8 100644
--- a/indra/newview/skins/default/xui/en/menu_viewer.xml
+++ b/indra/newview/skins/default/xui/en/menu_viewer.xml
@@ -3531,6 +3531,18 @@ function="World.EnvPreset"
              parameter="http://duckduckgo.com"/>
           </menu_item_call>
           <menu_item_call
+           label="Dump Fonts"
+           name="Dump Fonts">
+            <menu_item_call.on_click
+             function="Develop.Fonts.Dump" />
+          </menu_item_call>
+          <menu_item_call
+           label="Dump Font Textures"
+           name="Dump Font Textures">
+            <menu_item_call.on_click
+             function="Develop.Fonts.DumpTextures" />
+          </menu_item_call>
+          <menu_item_call
              label="Dump SelectMgr"
              name="Dump SelectMgr">
                 <menu_item_call.on_click
@@ -3599,6 +3611,14 @@ function="World.EnvPreset"
                  function="Advanced.ToggleDebugViews" />
             </menu_item_check>
             <menu_item_check
+             label="Debug Unicode"
+             name="Debug Unicode">
+                <menu_item_check.on_check
+                 function="Advanced.CheckDebugUnicode" />
+                <menu_item_check.on_click
+                 function="Advanced.ToggleDebugUnicode" />
+            </menu_item_check>
+            <menu_item_check
              label="Debug Name Tooltips"
              name="Debug Name Tooltips">
                 <menu_item_check.on_check
@@ -4405,7 +4425,7 @@ function="World.EnvPreset"
                     <menu_item_call.on_click
                      function="PromptShowURL"
                      name="PublicIssueTracker_url"
-                     parameter="WebLaunchPublicIssue,http://jira.secondlife.com" />
+                     parameter="WebLaunchPublicIssue,https://feedback.secondlife.com/" />
                 </menu_item_call>
                 <menu_item_call
                  label="Public Issue Tracker Help"
diff --git a/indra/newview/skins/default/xui/en/panel_preferences_graphics1.xml b/indra/newview/skins/default/xui/en/panel_preferences_graphics1.xml
index fe74cea2f1..8a9d3b755e 100644
--- a/indra/newview/skins/default/xui/en/panel_preferences_graphics1.xml
+++ b/indra/newview/skins/default/xui/en/panel_preferences_graphics1.xml
@@ -27,7 +27,7 @@
     left_delta="110"
     name="preset_text"
     top="5"
-    width="120">
+    width="320">
       (None)
   </text>
 
diff --git a/indra/newview/skins/default/xui/en/strings.xml b/indra/newview/skins/default/xui/en/strings.xml
index e405d9ea10..f3b26820d2 100644
--- a/indra/newview/skins/default/xui/en/strings.xml
+++ b/indra/newview/skins/default/xui/en/strings.xml
@@ -490,9 +490,9 @@ http://secondlife.com/support for help fixing this problem.
 	<!-- build floater -->
 	<string name="multiple_textures">Multiple</string>
 
-<string name="use_texture">Use texture</string>
-    <string name="manip_hint1">Move mouse cursor over ruler</string>
-    <string name="manip_hint2">to snap to grid</string>
+	<string name="use_texture">Use texture</string>
+	<string name="manip_hint1">Move mouse cursor over ruler</string>
+	<string name="manip_hint2">to snap to grid</string>
 
 	<!-- world map -->
 	<string name="texture_loading">Loading...</string>
@@ -507,14 +507,14 @@ http://secondlife.com/support for help fixing this problem.
 
 	<!-- Chat -->
 	<string name="NearbyChatTitle">Nearby chat</string>
-  <string name="NearbyChatLabel">(Nearby chat)</string>
+	<string name="NearbyChatLabel">(Nearby chat)</string>
 	<string name="whisper">whispers:</string>
 	<string name="shout">shouts:</string>
 	<string name="ringing">Connecting to in-world Voice Chat...</string>
 	<string name="connected">Connected</string>
 	<string name="unavailable">Voice not available at your current location</string>
 	<string name="hang_up">Disconnected from in-world Voice Chat</string>
-  <string name="reconnect_nearby">You will now be reconnected to Nearby Voice Chat</string>
+	<string name="reconnect_nearby">You will now be reconnected to Nearby Voice Chat</string>
 	<string name="ScriptQuestionCautionChatGranted">'[OBJECTNAME]', an object owned by '[OWNERNAME]', located in [REGIONNAME] at [REGIONPOS], has been granted permission to: [PERMISSIONS].</string>
 	<string name="ScriptQuestionCautionChatDenied">'[OBJECTNAME]', an object owned by '[OWNERNAME]', located in [REGIONNAME] at [REGIONPOS], has been denied permission to: [PERMISSIONS].</string>
 	<string name="AdditionalPermissionsRequestHeader">If you allow access to your account, you will also be allowing the object to:</string>
diff --git a/indra/newview/skins/default/xui/en/widgets/chat_editor.xml b/indra/newview/skins/default/xui/en/widgets/chat_editor.xml
index f9facb593a..c550f634e5 100644
--- a/indra/newview/skins/default/xui/en/widgets/chat_editor.xml
+++ b/indra/newview/skins/default/xui/en/widgets/chat_editor.xml
@@ -1,4 +1,7 @@
 <?xml version="1.0" encoding="utf-8" standalone="yes" ?>
 <chat_editor
   name="chat_editor"
-  show_context_menu="true"/>
+  show_context_menu="true"
+  show_emoji_helper="true"
+  use_color="true"
+  />
diff --git a/indra/newview/skins/default/xui/en/widgets/chat_history.xml b/indra/newview/skins/default/xui/en/widgets/chat_history.xml
index c0a948931c..c4300c9350 100644
--- a/indra/newview/skins/default/xui/en/widgets/chat_history.xml
+++ b/indra/newview/skins/default/xui/en/widgets/chat_history.xml
@@ -10,11 +10,11 @@
   bottom_separator_pad="1"
   top_header_pad="12"
   bottom_header_pad="5"
-	max_length="2147483647"
-	track_bottom="true"
-	name="chat_history"
-	type="string"
-	word_wrap="true"
+  max_length="2147483647"
+  track_bottom="true"
+  name="chat_history"
+  type="string"
+  word_wrap="true"
   line_spacing.multiple="1.0" 
   font="SansSerif">
   <more_chat_text
diff --git a/indra/newview/skins/default/xui/en/widgets/emoji_complete.xml b/indra/newview/skins/default/xui/en/widgets/emoji_complete.xml
new file mode 100644
index 0000000000..6cc8d7118f
--- /dev/null
+++ b/indra/newview/skins/default/xui/en/widgets/emoji_complete.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
+<emoji_complete
+  autosize="false"
+  hover_image="ListItem_Over"
+  selected_image="ListItem_Select"
+  max_visible="7"
+  padding="8"
+  >
+</emoji_complete>
diff --git a/indra/newview/skins/default/xui/es/emoji_categories.xml b/indra/newview/skins/default/xui/es/emoji_categories.xml
new file mode 100644
index 0000000000..b1b73eba5e
--- /dev/null
+++ b/indra/newview/skins/default/xui/es/emoji_categories.xml
@@ -0,0 +1,59 @@
+<?xml version="1.0" ?>
+<llsd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="llsd.xsd">
+  <array>
+    <map>
+      <key>Name</key>
+      <string>smileys and emotion</string>
+      <key>Category</key>
+      <string>emoticonos y emoción</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>people and body</string>
+      <key>Category</key>
+      <string>personas y cuerpo</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>components</string>
+      <key>Category</key>
+      <string>componentes</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>animals and nature</string>
+      <key>Category</key>
+      <string>animales y la naturaleza</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>food and drink</string>
+      <key>Category</key>
+      <string>comida y bebida</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>travel and places</string>
+      <key>Category</key>
+      <string>viajes y lugares</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>activities</string>
+      <key>Category</key>
+      <string>actividades</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>objects</string>
+      <key>Category</key>
+      <string>objetos</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>symbols</string>
+      <key>Category</key>
+      <string>símbolos</string>
+    </map>
+  </array>
+</llsd>
diff --git a/indra/newview/skins/default/xui/fr/emoji_categories.xml b/indra/newview/skins/default/xui/fr/emoji_categories.xml
new file mode 100644
index 0000000000..38dc9cb8f8
--- /dev/null
+++ b/indra/newview/skins/default/xui/fr/emoji_categories.xml
@@ -0,0 +1,59 @@
+<?xml version="1.0" ?>
+<llsd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="llsd.xsd">
+  <array>
+    <map>
+      <key>Name</key>
+      <string>smileys and emotion</string>
+      <key>Category</key>
+      <string>smileys et émotion</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>people and body</string>
+      <key>Category</key>
+      <string>les gens et le corps</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>components</string>
+      <key>Category</key>
+      <string>composants</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>animals and nature</string>
+      <key>Category</key>
+      <string>animaux et la nature</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>food and drink</string>
+      <key>Category</key>
+      <string>nourriture et boissons</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>travel and places</string>
+      <key>Category</key>
+      <string>voyages et lieux</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>activities</string>
+      <key>Category</key>
+      <string>activités</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>objects</string>
+      <key>Category</key>
+      <string>objets</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>symbols</string>
+      <key>Category</key>
+      <string>symboles</string>
+    </map>
+  </array>
+</llsd>
diff --git a/indra/newview/skins/default/xui/it/emoji_categories.xml b/indra/newview/skins/default/xui/it/emoji_categories.xml
new file mode 100644
index 0000000000..a4782e60a6
--- /dev/null
+++ b/indra/newview/skins/default/xui/it/emoji_categories.xml
@@ -0,0 +1,59 @@
+<?xml version="1.0" ?>
+<llsd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="llsd.xsd">
+  <array>
+    <map>
+      <key>Name</key>
+      <string>smileys and emotion</string>
+      <key>Category</key>
+      <string>smileys and emozione</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>people and body</string>
+      <key>Category</key>
+      <string>persone e corpo</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>components</string>
+      <key>Category</key>
+      <string>componenti</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>animals and nature</string>
+      <key>Category</key>
+      <string>animali and natura</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>food and drink</string>
+      <key>Category</key>
+      <string>cibo e bevande</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>travel and places</string>
+      <key>Category</key>
+      <string>viaggi and luoghi</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>activities</string>
+      <key>Category</key>
+      <string>attività</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>objects</string>
+      <key>Category</key>
+      <string>oggetti</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>symbols</string>
+      <key>Category</key>
+      <string>simboli</string>
+    </map>
+  </array>
+</llsd>
diff --git a/indra/newview/skins/default/xui/ja/emoji_categories.xml b/indra/newview/skins/default/xui/ja/emoji_categories.xml
new file mode 100644
index 0000000000..7750f4ad2e
--- /dev/null
+++ b/indra/newview/skins/default/xui/ja/emoji_categories.xml
@@ -0,0 +1,59 @@
+<?xml version="1.0" ?>
+<llsd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="llsd.xsd">
+  <array>
+    <map>
+      <key>Name</key>
+      <string>smileys and emotion</string>
+      <key>Category</key>
+      <string>スマイリーと感情</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>people and body</string>
+      <key>Category</key>
+      <string>人体</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>components</string>
+      <key>Category</key>
+      <string>コンポーネント</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>animals and nature</string>
+      <key>Category</key>
+      <string>動物自然</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>food and drink</string>
+      <key>Category</key>
+      <string>飲み物・食べ物</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>travel and places</string>
+      <key>Category</key>
+      <string>旅行・場所</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>activities</string>
+      <key>Category</key>
+      <string>有効化</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>objects</string>
+      <key>Category</key>
+      <string>オブジェクト</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>symbols</string>
+      <key>Category</key>
+      <string>シンボル</string>
+    </map>
+  </array>
+</llsd>
diff --git a/indra/newview/skins/default/xui/pl/emoji_categories.xml b/indra/newview/skins/default/xui/pl/emoji_categories.xml
new file mode 100644
index 0000000000..9aad7af794
--- /dev/null
+++ b/indra/newview/skins/default/xui/pl/emoji_categories.xml
@@ -0,0 +1,59 @@
+<?xml version="1.0" ?>
+<llsd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="llsd.xsd">
+  <array>
+    <map>
+      <key>Name</key>
+      <string>smileys and emotion</string>
+      <key>Category</key>
+      <string>buźki and emocje</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>people and body</string>
+      <key>Category</key>
+      <string>ludzie and ciało</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>components</string>
+      <key>Category</key>
+      <string>składniki</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>animals and nature</string>
+      <key>Category</key>
+      <string>zwierzęta and przyroda</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>food and drink</string>
+      <key>Category</key>
+      <string>jedzenie i picie</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>travel and places</string>
+      <key>Category</key>
+      <string>podróże and miejsca</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>activities</string>
+      <key>Category</key>
+      <string>aktywność</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>objects</string>
+      <key>Category</key>
+      <string>objekt</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>symbols</string>
+      <key>Category</key>
+      <string>symbole</string>
+    </map>
+  </array>
+</llsd>
diff --git a/indra/newview/skins/default/xui/pt/emoji_categories.xml b/indra/newview/skins/default/xui/pt/emoji_categories.xml
new file mode 100644
index 0000000000..887444b957
--- /dev/null
+++ b/indra/newview/skins/default/xui/pt/emoji_categories.xml
@@ -0,0 +1,59 @@
+<?xml version="1.0" ?>
+<llsd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="llsd.xsd">
+  <array>
+    <map>
+      <key>Name</key>
+      <string>smileys and emotion</string>
+      <key>Category</key>
+      <string>sorrisos e emoção</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>people and body</string>
+      <key>Category</key>
+      <string>pessoas e corpo</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>components</string>
+      <key>Category</key>
+      <string>componentes</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>animals and nature</string>
+      <key>Category</key>
+      <string>animais e natureza</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>food and drink</string>
+      <key>Category</key>
+      <string>comida e bebida</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>travel and places</string>
+      <key>Category</key>
+      <string>viagens e lugares</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>activities</string>
+      <key>Category</key>
+      <string>atividades</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>objects</string>
+      <key>Category</key>
+      <string>objetos</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>symbols</string>
+      <key>Category</key>
+      <string>símbolos</string>
+    </map>
+  </array>
+</llsd>
diff --git a/indra/newview/skins/default/xui/ru/emoji_categories.xml b/indra/newview/skins/default/xui/ru/emoji_categories.xml
new file mode 100644
index 0000000000..b08f0d8117
--- /dev/null
+++ b/indra/newview/skins/default/xui/ru/emoji_categories.xml
@@ -0,0 +1,59 @@
+<?xml version="1.0" ?>
+<llsd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="llsd.xsd">
+  <array>
+    <map>
+      <key>Name</key>
+      <string>smileys and emotion</string>
+      <key>Category</key>
+      <string>смайлики и люди</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>people and body</string>
+      <key>Category</key>
+      <string>тело людей</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>components</string>
+      <key>Category</key>
+      <string>компонент</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>animals and nature</string>
+      <key>Category</key>
+      <string>животные и природа</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>food and drink</string>
+      <key>Category</key>
+      <string>еда и напитки</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>travel and places</string>
+      <key>Category</key>
+      <string>путешествия и местности</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>activities</string>
+      <key>Category</key>
+      <string>варианты досуга</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>objects</string>
+      <key>Category</key>
+      <string>предметы</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>symbols</string>
+      <key>Category</key>
+      <string>символы</string>
+    </map>
+  </array>
+</llsd>
diff --git a/indra/newview/skins/default/xui/zh/emoji_categories.xml b/indra/newview/skins/default/xui/zh/emoji_categories.xml
new file mode 100644
index 0000000000..fbe6165eeb
--- /dev/null
+++ b/indra/newview/skins/default/xui/zh/emoji_categories.xml
@@ -0,0 +1,59 @@
+<?xml version="1.0" ?>
+<llsd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="llsd.xsd">
+  <array>
+    <map>
+      <key>Name</key>
+      <string>smileys and emotion</string>
+      <key>Category</key>
+      <string>笑脸</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>people and body</string>
+      <key>Category</key>
+      <string>人体</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>components</string>
+      <key>Category</key>
+      <string>组件</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>animals and nature</string>
+      <key>Category</key>
+      <string>野生动物</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>food and drink</string>
+      <key>Category</key>
+      <string>食物飲料</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>travel and places</string>
+      <key>Category</key>
+      <string>旅遊地點</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>activities</string>
+      <key>Category</key>
+      <string>个人活动</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>objects</string>
+      <key>Category</key>
+      <string>物件</string>
+    </map>
+    <map>
+      <key>Name</key>
+      <string>symbols</string>
+      <key>Category</key>
+      <string>人的符号</string>
+    </map>
+  </array>
+</llsd>
diff --git a/indra/newview/viewer_manifest.py b/indra/newview/viewer_manifest.py
index 1fa4df1682..c7f32d0da9 100755
--- a/indra/newview/viewer_manifest.py
+++ b/indra/newview/viewer_manifest.py
@@ -141,7 +141,7 @@ class ViewerManifest(LLManifest):
                 self.path("*.tga")
 
             # Include our fonts
-            with self.prefix(src_dst="fonts"):
+            with self.prefix(src="../packages/fonts",src_dst="fonts"):
                 self.path("*.ttf")
                 self.path("*.txt")
 
@@ -559,6 +559,10 @@ class Windows_x86_64_Manifest(ViewerManifest):
                 self.path("OpenAL32.dll")
                 self.path("alut.dll")
 
+            # For ICU4C
+            self.path("icudt48.dll")
+            self.path("icuuc48.dll")
+
             # For textures
             self.path("openjp2.dll")