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diff --git a/indra/newview/llgroupactions.cpp b/indra/newview/llgroupactions.cpp
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+++ b/indra/newview/llgroupactions.cpp
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+/** 
+ * @file llgroupactions.cpp
+ * @brief Group-related actions (join, leave, new, delete, etc)
+ *
+ * $LicenseInfo:firstyear=2009&license=viewergpl$
+ * 
+ * Copyright (c) 2009, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+
+#include "llviewerprecompiledheaders.h"
+
+#include "llgroupactions.h"
+
+#include "llagent.h"
+#include "llfloaterreg.h"
+#include "llgroupmgr.h"
+#include "llimview.h" // for gIMMgr
+#include "llsidetray.h"
+
+#include "llcommandhandler.h"
+
+//
+// Globals
+//
+
+class LLGroupHandler : public LLCommandHandler
+{
+public:
+	// requires trusted browser to trigger
+	LLGroupHandler() : LLCommandHandler("group", true) { }
+	bool handle(const LLSD& tokens, const LLSD& query_map,
+				LLMediaCtrl* web)
+	{
+		if (tokens.size() < 1)
+		{
+			return false;
+		}
+
+		if (tokens[0].asString() == "create")
+		{
+			LLGroupActions::createGroup();
+			return true;
+		}
+
+		if (tokens.size() < 2)
+		{
+			return false;
+		}
+
+		if (tokens[0].asString() == "list")
+		{
+			if (tokens[1].asString() == "show")
+			{
+				LLFloaterReg::showInstance("contacts", "groups");
+				return true;
+			}
+            return false;
+		}
+
+		LLUUID group_id;
+		if (!group_id.set(tokens[0], FALSE))
+		{
+			return false;
+		}
+
+		if (tokens[1].asString() == "about")
+		{
+			if (group_id.isNull())
+				return true;
+
+			LLGroupActions::show(group_id);
+
+			return true;
+		}
+		return false;
+	}
+};
+LLGroupHandler gGroupHandler;
+
+// static
+void LLGroupActions::search()
+{
+	LLFloaterReg::showInstance("search", LLSD().insert("panel", "group"));
+}
+
+// static
+void LLGroupActions::leave(const LLUUID& group_id)
+{
+	if (group_id.isNull())
+		return;
+
+	S32 count = gAgent.mGroups.count();
+	S32 i;
+	for (i = 0; i < count; ++i)
+	{
+		if(gAgent.mGroups.get(i).mID == group_id)
+			break;
+	}
+	if (i < count)
+	{
+		LLSD args;
+		args["GROUP"] = gAgent.mGroups.get(i).mName;
+		LLSD payload;
+		payload["group_id"] = group_id;
+		LLNotifications::instance().add("GroupLeaveConfirmMember", args, payload, onLeaveGroup);
+	}
+}
+
+// static
+void LLGroupActions::activate(const LLUUID& group_id)
+{
+	LLMessageSystem* msg = gMessageSystem;
+	msg->newMessageFast(_PREHASH_ActivateGroup);
+	msg->nextBlockFast(_PREHASH_AgentData);
+	msg->addUUIDFast(_PREHASH_AgentID, gAgent.getID());
+	msg->addUUIDFast(_PREHASH_SessionID, gAgent.getSessionID());
+	msg->addUUIDFast(_PREHASH_GroupID, group_id);
+	gAgent.sendReliableMessage();
+}
+
+bool	isGroupUIVisible()
+{
+	LLPanel* panel = LLSideTray::getInstance()->findChild<LLPanel>("panel_group_info_sidetray");
+	if(!panel)
+		return false;
+	return panel->getVisible();
+}
+
+// static
+void LLGroupActions::show(const LLUUID& group_id)
+{
+	if (group_id.isNull())
+		return;
+
+	LLSD params;
+	params["group_id"] = group_id;
+	params["open_tab_name"] = "panel_group_info_sidetray";
+
+	LLSideTray::getInstance()->showPanel("panel_group_info_sidetray", params);
+}
+
+void LLGroupActions::refresh_notices()
+{
+	if(!isGroupUIVisible())
+		return;
+
+	LLSD params;
+	params["group_id"] = LLUUID::null;
+	params["open_tab_name"] = "panel_group_info_sidetray";
+	params["action"] = "refresh_notices";
+
+	LLSideTray::getInstance()->showPanel("panel_group_info_sidetray", params);
+}
+
+//static 
+void LLGroupActions::refresh(const LLUUID& group_id)
+{
+	if(!isGroupUIVisible())
+		return;
+
+	LLSD params;
+	params["group_id"] = group_id;
+	params["open_tab_name"] = "panel_group_info_sidetray";
+	params["action"] = "refresh";
+
+	LLSideTray::getInstance()->showPanel("panel_group_info_sidetray", params);
+}
+
+//static 
+void LLGroupActions::createGroup()
+{
+	LLSD params;
+	params["group_id"] = LLUUID::null;
+	params["open_tab_name"] = "panel_group_info_sidetray";
+	params["action"] = "create";
+
+	LLSideTray::getInstance()->showPanel("panel_group_info_sidetray", params);
+
+}
+//static
+void LLGroupActions::closeGroup(const LLUUID& group_id)
+{
+	if(!isGroupUIVisible())
+		return;
+
+	LLSD params;
+	params["group_id"] = group_id;
+	params["open_tab_name"] = "panel_group_info_sidetray";
+	params["action"] = "close";
+
+	LLSideTray::getInstance()->showPanel("panel_group_info_sidetray", params);
+}
+
+
+// static
+void LLGroupActions::startChat(const LLUUID& group_id)
+{
+	if (group_id.isNull())
+		return;
+
+	LLGroupData group_data;
+	if (gAgent.getGroupData(group_id, group_data))
+	{
+		gIMMgr->addSession(
+			group_data.mName,
+			IM_SESSION_GROUP_START,
+			group_id);
+		make_ui_sound("UISndStartIM");
+	}
+	else
+	{
+		// this should never happen, as starting a group IM session
+		// relies on you belonging to the group and hence having the group data
+		make_ui_sound("UISndInvalidOp");
+	}
+}
+
+// static
+bool LLGroupActions::isAvatarMemberOfGroup(const LLUUID& group_id, const LLUUID& avatar_id)
+{
+	if(group_id.isNull() || avatar_id.isNull())
+	{
+		return false;
+	}
+
+	LLGroupMgrGroupData* group_data = LLGroupMgr::getInstance()->getGroupData(group_id);
+	if(!group_data)
+	{
+		return false;
+	}
+
+	if(group_data->mMembers.end() == group_data->mMembers.find(avatar_id))
+	{
+		return false;
+	}
+
+	return true;
+}
+
+//-- Private methods ----------------------------------------------------------
+
+// static
+bool LLGroupActions::onLeaveGroup(const LLSD& notification, const LLSD& response)
+{
+	S32 option = LLNotification::getSelectedOption(notification, response);
+	LLUUID group_id = notification["payload"]["group_id"].asUUID();
+	if(option == 0)
+	{
+		LLMessageSystem* msg = gMessageSystem;
+		msg->newMessageFast(_PREHASH_LeaveGroupRequest);
+		msg->nextBlockFast(_PREHASH_AgentData);
+		msg->addUUIDFast(_PREHASH_AgentID, gAgent.getID());
+		msg->addUUIDFast(_PREHASH_SessionID, gAgent.getSessionID());
+		msg->nextBlockFast(_PREHASH_GroupData);
+		msg->addUUIDFast(_PREHASH_GroupID, group_id);
+		gAgent.sendReliableMessage();
+	}
+	return false;
+}