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diff --git a/indra/newview/llbottomtray.cpp b/indra/newview/llbottomtray.cpp
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+/** 
+ * @file llbottomtray.cpp
+ * @brief LLBottomTray class implementation
+ *
+ * $LicenseInfo:firstyear=2009&license=viewergpl$
+ * 
+ * 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" // must be first include
+#include "llbottomtray.h"
+
+#include "llagent.h"
+#include "llchiclet.h"
+#include "llfloaterreg.h"
+#include "llflyoutbutton.h"
+#include "lllayoutstack.h"
+#include "llnearbychatbar.h"
+#include "llsplitbutton.h"
+#include "llsyswellwindow.h"
+#include "llfloatercamera.h"
+#include "llimpanel.h"
+
+LLBottomTray::LLBottomTray(const LLSD&)
+:	mChicletPanel(NULL),
+	mSysWell(NULL),
+	mTalkBtn(NULL),
+	mNearbyChatBar(NULL),
+	mToolbarStack(NULL)
+
+{
+	mFactoryMap["chat_bar"] = LLCallbackMap(LLBottomTray::createNearbyChatBar, NULL);
+
+	LLUICtrlFactory::getInstance()->buildPanel(this,"panel_bottomtray.xml");
+
+	mChicletPanel = getChild<LLChicletPanel>("chiclet_list");
+	mSysWell = getChild<LLNotificationChiclet>("sys_well");
+
+	mSysWell->setNotificationChicletWindow(LLFloaterReg::getInstance("syswell_window"));
+
+	mChicletPanel->setChicletClickedCallback(boost::bind(&LLBottomTray::onChicletClick,this,_1));
+
+	LLSplitButton* presets = getChild<LLSplitButton>("presets");
+	presets->setSelectionCallback(LLFloaterCamera::onClickCameraPresets);
+
+	LLIMMgr::getInstance()->addSessionObserver(this);
+
+	//this is to fix a crash that occurs because LLBottomTray is a singleton
+	//and thus is deleted at the end of the viewers lifetime, but to be cleanly
+	//destroyed LLBottomTray requires some subsystems that are long gone
+	LLUI::getRootView()->addChild(this);
+
+	// Necessary for focus movement among child controls
+	setFocusRoot(TRUE);
+}
+
+BOOL LLBottomTray::postBuild()
+{
+	mCommitCallbackRegistrar.add("ShowCamMoveCtrls.Action", boost::bind(&LLBottomTray::onShowCamMoveCtrlsContextMenuItemClicked, this, _2));
+	mEnableCallbackRegistrar.add("ShowCamMoveCtrls.EnableMenuItem", boost::bind(&LLBottomTray::onShowCamMoveCtrlsContextMenuItemEnabled, this, _2));
+
+	mShowCamMoveCtrlsContextMenu =  LLUICtrlFactory::getInstance()->createFromFile<LLMenuGL>("menu_hide_camera_move_controls.xml", gMenuHolder, LLViewerMenuHolderGL::child_registry_t::instance());
+	gMenuHolder->addChild(mShowCamMoveCtrlsContextMenu);
+
+	mNearbyChatBar = getChild<LLNearbyChatBar>("chat_bar");
+	mToolbarStack = getChild<LLLayoutStack>("toolbar_stack");
+	mMovementPanel = getChild<LLPanel>("movement_panel");
+	mCamPanel = getChild<LLPanel>("cam_panel");
+
+	return TRUE;
+}
+
+LLBottomTray::~LLBottomTray()
+{
+	if (!LLSingleton<LLIMMgr>::destroyed())
+	{
+		LLIMMgr::getInstance()->removeSessionObserver(this);
+	}
+}
+
+void LLBottomTray::onChicletClick(LLUICtrl* ctrl)
+{
+	LLIMChiclet* chiclet = dynamic_cast<LLIMChiclet*>(ctrl);
+	if (chiclet)
+	{
+		// Until you can type into an IM Window and have a conversation,
+		// still show the old communicate window
+		//LLFloaterReg::showInstance("communicate", chiclet->getSessionId());
+
+		// Show after comm window so it is frontmost (and hence will not
+		// auto-hide)
+
+// this logic has been moved to LLIMChiclet::handleMouseDown
+//		LLIMFloater::show(chiclet->getSessionId());
+//		chiclet->setCounter(0);
+	}
+}
+
+void* LLBottomTray::createNearbyChatBar(void* userdata)
+{
+	return new LLNearbyChatBar();
+}
+
+LLIMChiclet* LLBottomTray::createIMChiclet(const LLUUID& session_id)
+{
+	if(session_id.isNull())
+	{
+		return NULL;
+	}
+
+	LLFloaterIMPanel* im = LLIMMgr::getInstance()->findFloaterBySession(session_id);
+	if (!im) 
+	{
+		return NULL; //should never happen
+	}
+
+	switch(im->getDialogType())
+	{
+	case IM_NOTHING_SPECIAL:
+		return getChicletPanel()->createChiclet<LLIMP2PChiclet>(session_id);
+		break;
+	case IM_SESSION_GROUP_START:
+	case IM_SESSION_INVITE:
+		return getChicletPanel()->createChiclet<LLIMGroupChiclet>(session_id);
+		break;
+	default:
+		return NULL;
+		break;
+	}
+}
+
+//virtual
+void LLBottomTray::sessionAdded(const LLUUID& session_id, const std::string& name, const LLUUID& other_participant_id)
+{
+	if(getChicletPanel())
+	{
+		if(getChicletPanel()->findChiclet<LLChiclet>(session_id))
+		{
+
+		}
+		else
+		{
+			LLIMChiclet* chiclet = createIMChiclet(session_id);
+			if(chiclet)
+			{
+				chiclet->setIMSessionName(name);
+				chiclet->setOtherParticipantId(other_participant_id);
+			}
+			else
+			{
+				llerrs << "Could not create chiclet" << llendl;
+			}
+		}
+	}
+}
+
+//virtual
+void LLBottomTray::sessionRemoved(const LLUUID& session_id)
+{
+	if(getChicletPanel())
+	{
+		getChicletPanel()->removeChiclet(session_id);
+	}
+}
+
+//virtual
+void LLBottomTray::onFocusLost()
+{
+	if (gAgent.cameraMouselook())
+	{
+		setVisible(FALSE);
+	}
+}
+
+//virtual
+// setVisible used instead of onVisibilityChange, since LLAgent calls it on entering/leaving mouselook mode.
+// If bottom tray is already visible in mouselook mode, then onVisibilityChange will not be called from setVisible(true),
+void LLBottomTray::setVisible(BOOL visible)
+{
+	LLPanel::setVisible(visible);
+
+	// *NOTE: we must check mToolbarStack against NULL because setVisible is called from the 
+	// LLPanel::initFromParams BEFORE postBuild is called and child controls are not exist yet
+	if (NULL != mToolbarStack)
+	{
+		BOOL visibility = gAgent.cameraMouselook() ? false : true;
+
+		for ( child_list_const_iter_t child_it = mToolbarStack->getChildList()->begin(); 
+			child_it != mToolbarStack->getChildList()->end(); child_it++)
+		{
+			LLView* viewp = *child_it;
+			std::string name = viewp->getName();
+			
+			if ("chat_bar" == name || "movement_panel" == name || "cam_panel" == name)
+				continue;
+			else 
+			{
+				viewp->setVisible(visibility);
+			}
+		}
+	}
+}
+
+BOOL LLBottomTray::handleRightMouseDown(S32 x, S32 y, MASK mask)
+{
+	if (mShowCamMoveCtrlsContextMenu)
+	{
+		mShowCamMoveCtrlsContextMenu->buildDrawLabels();
+		mShowCamMoveCtrlsContextMenu->updateParent(LLMenuGL::sMenuContainer);
+		LLMenuGL::showPopup(this, mShowCamMoveCtrlsContextMenu, x, y);
+	}
+
+	return TRUE;
+}
+
+bool LLBottomTray::onShowCamMoveCtrlsContextMenuItemEnabled(const LLSD& userdata)
+{
+	std::string item = userdata.asString();
+
+	if (item == "show_camera_move_controls")
+	{
+		return gSavedSettings.getBOOL("ShowCameraAndMoveControls");
+	}
+
+	return FALSE;
+}
+
+void LLBottomTray::onShowCamMoveCtrlsContextMenuItemClicked(const LLSD& userdata)
+{
+	std::string item = userdata.asString();
+
+	if (item == "show_camera_move_controls")
+	{
+		BOOL state = !gSavedSettings.getBOOL("ShowCameraAndMoveControls");
+
+		showCameraAndMoveControls(state);
+		gSavedSettings.setBOOL("ShowCameraAndMoveControls", state);
+	}
+}
+
+void LLBottomTray::showCameraAndMoveControls(BOOL visible)
+{
+	mCamPanel->setVisible(visible);
+	mMovementPanel->setVisible(visible);
+}