merge

41 files changed, 443 insertions, 430 deletions

diff --git a/indra/llui/llconsole.cpp b/indra/llui/llconsole.cpp
index e0053b4cc7..48c76cf105 100644
--- a/indra/llui/llconsole.cpp
+++ b/indra/llui/llconsole.cpp
@@ -60,6 +60,8 @@ LLConsole* gConsole = NULL;  // Created and destroyed in LLViewerWindow.
 const F32 FADE_DURATION = 2.f;
 const S32 MIN_CONSOLE_WIDTH = 200;
  
+static LLDefaultChildRegistry::Register<LLConsole> r("console");
+
 LLConsole::LLConsole(const LLConsole::Params& p) 
 :	LLUICtrl(p),
 	LLFixedBuffer(p.max_lines),
diff --git a/indra/llui/llfloater.cpp b/indra/llui/llfloater.cpp
index aac27e6562..f2cdad8854 100644
--- a/indra/llui/llfloater.cpp
+++ b/indra/llui/llfloater.cpp
@@ -1857,6 +1857,8 @@ void LLFloater::buildButtons()
 /////////////////////////////////////////////////////
 // LLFloaterView
 
+static LLDefaultChildRegistry::Register<LLFloaterView> r("floater_view");
+
 LLFloaterView::LLFloaterView (const Params& p)
 :	LLUICtrl (p),
 	mFocusCycleMode(FALSE),
diff --git a/indra/llui/lllayoutstack.cpp b/indra/llui/lllayoutstack.cpp
index bac5491943..5999e1a29e 100644
--- a/indra/llui/lllayoutstack.cpp
+++ b/indra/llui/lllayoutstack.cpp
@@ -137,6 +137,7 @@ LLLayoutStack::LLLayoutStack(const LLLayoutStack::Params& p)
 	mPanelSpacing(p.border_size),
 	mOrientation((p.orientation() == "vertical") ? VERTICAL : HORIZONTAL),
 	mAnimate(p.animate),
+	mAnimatedThisFrame(false),
 	mClip(p.clip)
 {}
 
@@ -172,6 +173,7 @@ void LLLayoutStack::draw()
 		// only force drawing invisible children if visible amount is non-zero
 		drawChild(panelp, 0, 0, !clip_rect.isEmpty());
 	}
+	mAnimatedThisFrame = false;
 }
 
 void LLLayoutStack::removeChild(LLView* view)
@@ -411,8 +413,10 @@ void LLLayoutStack::updatePanelAutoResize(const std::string& panel_name, BOOL au
 	}
 }
 
+static LLFastTimer::DeclareTimer FTM_UPDATE_LAYOUT("Update LayoutStacks");
 void LLLayoutStack::updateLayout(BOOL force_resize)
 {
+	LLFastTimer ft(FTM_UPDATE_LAYOUT);
 	static LLUICachedControl<S32> resize_bar_overlap ("UIResizeBarOverlap", 0);
 	calcMinExtents();
 
@@ -431,10 +435,13 @@ void LLLayoutStack::updateLayout(BOOL force_resize)
 		{
 			if (mAnimate)
 			{
-				(*panel_it)->mVisibleAmt = lerp((*panel_it)->mVisibleAmt, 1.f, LLCriticalDamp::getInterpolant(ANIM_OPEN_TIME));
-				if ((*panel_it)->mVisibleAmt > 0.99f)
+				if (!mAnimatedThisFrame)
 				{
-					(*panel_it)->mVisibleAmt = 1.f;
+					(*panel_it)->mVisibleAmt = lerp((*panel_it)->mVisibleAmt, 1.f, LLCriticalDamp::getInterpolant(ANIM_OPEN_TIME));
+					if ((*panel_it)->mVisibleAmt > 0.99f)
+					{
+						(*panel_it)->mVisibleAmt = 1.f;
+					}
 				}
 			}
 			else
@@ -446,10 +453,13 @@ void LLLayoutStack::updateLayout(BOOL force_resize)
 		{
 			if (mAnimate)
 			{
-				(*panel_it)->mVisibleAmt = lerp((*panel_it)->mVisibleAmt, 0.f, LLCriticalDamp::getInterpolant(ANIM_CLOSE_TIME));
-				if ((*panel_it)->mVisibleAmt < 0.001f)
+				if (!mAnimatedThisFrame)
 				{
-					(*panel_it)->mVisibleAmt = 0.f;
+					(*panel_it)->mVisibleAmt = lerp((*panel_it)->mVisibleAmt, 0.f, LLCriticalDamp::getInterpolant(ANIM_CLOSE_TIME));
+					if ((*panel_it)->mVisibleAmt < 0.001f)
+					{
+						(*panel_it)->mVisibleAmt = 0.f;
+					}
 				}
 			}
 			else
@@ -631,10 +641,10 @@ void LLLayoutStack::updateLayout(BOOL force_resize)
 		// adjust running headroom count based on new sizes
 		shrink_headroom_total += delta_size;
 
-		panelp->reshape(new_width, new_height);
-		panelp->setOrigin(cur_x, cur_y - new_height);
+		LLRect panel_rect;
+		panel_rect.setLeftTopAndSize(cur_x, cur_y, new_width, new_height);
+		panelp->setShape(panel_rect);
 
-		LLRect panel_rect = panelp->getRect();
 		LLRect resize_bar_rect = panel_rect;
 		if (mOrientation == HORIZONTAL)
 		{
@@ -705,6 +715,8 @@ void LLLayoutStack::updateLayout(BOOL force_resize)
 		llassert_always(force_resize == FALSE);
 		updateLayout(TRUE);
 	}
+
+	 mAnimatedThisFrame = true;
 } // end LLLayoutStack::updateLayout
 
 
@@ -772,3 +784,16 @@ void LLLayoutStack::calcMinExtents()
 		}
 	}
 }
+
+// update layout stack animations, etc. once per frame
+// NOTE: we use this to size world view based on animating UI, *before* we draw the UI
+// we might still need to call updateLayout during UI draw phase, in case UI elements
+// are resizing themselves dynamically
+//static 
+void LLLayoutStack::updateClass()
+{
+	for (LLInstanceTracker::instance_iter it = beginInstances(); it != endInstances(); ++it)
+	{
+		(*it)->updateLayout();
+	}
+}
diff --git a/indra/llui/lllayoutstack.h b/indra/llui/lllayoutstack.h
index 9ded48ef6a..8475079f5e 100644
--- a/indra/llui/lllayoutstack.h
+++ b/indra/llui/lllayoutstack.h
@@ -38,7 +38,7 @@
 
 class LLPanel;
 
-class LLLayoutStack : public LLView
+class LLLayoutStack : public LLView, LLInstanceTracker<LLLayoutStack>
 {
 public:
 	struct Params : public LLInitParam::Block<Params, LLView::Params>
@@ -81,6 +81,10 @@ public:
 	S32 getNumPanels() { return mPanels.size(); }
 
 	void updatePanelAutoResize(const std::string& panel_name, BOOL auto_resize);
+
+
+	static void updateClass();
+
 protected:
 	LLLayoutStack(const Params&);
 	friend class LLUICtrlFactory;
@@ -105,6 +109,8 @@ private:
 	S32 mMinHeight;  // calculated by calcMinExtents
 	S32 mPanelSpacing;
 
+	// true if we already applied animation this frame
+	bool mAnimatedThisFrame;
 	bool mAnimate;
 	bool mClip;
 }; // end class LLLayoutStack
diff --git a/indra/llui/llmenugl.cpp b/indra/llui/llmenugl.cpp
index c6a38c7ca7..de9a854f63 100644
--- a/indra/llui/llmenugl.cpp
+++ b/indra/llui/llmenugl.cpp
@@ -3270,11 +3270,9 @@ BOOL LLMenuBarGL::handleHover( S32 x, S32 y, MASK mask )
 ///============================================================================
 LLCoordGL LLMenuHolderGL::sContextMenuSpawnPos(S32_MAX, S32_MAX);
 
-LLMenuHolderGL::LLMenuHolderGL()
-	: LLPanel()
+LLMenuHolderGL::LLMenuHolderGL(const LLMenuHolderGL::Params& p)
+	: LLPanel(p)
 {
-	setName("Menu Holder");
-	setMouseOpaque(FALSE);
 	sItemActivationTimer.stop();
 	mCanHide = TRUE;
 }
diff --git a/indra/llui/llmenugl.h b/indra/llui/llmenugl.h
index dc8ed3b3fd..cbb9b4d344 100644
--- a/indra/llui/llmenugl.h
+++ b/indra/llui/llmenugl.h
@@ -746,7 +746,9 @@ private:
 class LLMenuHolderGL : public LLPanel
 {
 public:
-	LLMenuHolderGL();
+	struct Params : public LLInitParam::Block<Params, LLPanel::Params>
+	{};
+	LLMenuHolderGL(const Params& p);
 	virtual ~LLMenuHolderGL() {}
 
 	virtual BOOL hideMenus();
diff --git a/indra/llui/llscrolllistcolumn.cpp b/indra/llui/llscrolllistcolumn.cpp
index ba53f84877..d281341202 100644
--- a/indra/llui/llscrolllistcolumn.cpp
+++ b/indra/llui/llscrolllistcolumn.cpp
@@ -44,6 +44,9 @@
 
 const S32 MIN_COLUMN_WIDTH = 20;
 
+// defaults for LLScrollColumnHeader param block pulled from widgets/scroll_column_header.xml
+static LLWidgetNameRegistry::StaticRegistrar sRegisterColumnHeaderParams(&typeid(LLScrollColumnHeader::Params), "scroll_column_header");
+
 //---------------------------------------------------------------------------
 // LLScrollColumnHeader
 //---------------------------------------------------------------------------
@@ -51,15 +54,7 @@ LLScrollColumnHeader::Params::Params()
 :	column("column")
 {
 	name  = "column_header";
-	image_unselected.name("square_btn_32x128.tga");
-	image_selected.name("square_btn_selected_32x128.tga");
-	image_disabled.name("square_btn_32x128.tga");
-	image_disabled_selected.name("square_btn_selected_32x128.tga");
-	image_overlay.name("combobox_arrow.tga");
-	image_overlay_alignment("right");
-	font_halign = LLFontGL::LEFT;
 	tab_stop(false);
-	scale_image(true);
 }
 
 
diff --git a/indra/llui/llscrolllistctrl.cpp b/indra/llui/llscrolllistctrl.cpp
index a6cd6412e5..1c2c02e1cc 100644
--- a/indra/llui/llscrolllistctrl.cpp
+++ b/indra/llui/llscrolllistctrl.cpp
@@ -2624,7 +2624,7 @@ void LLScrollListCtrl::addColumn(const LLScrollListColumn::Params& column_params
 
 			LLRect temp_rect = LLRect(left,top+mHeadingHeight,right,top);
 
-			LLScrollColumnHeader::Params params;
+			LLScrollColumnHeader::Params params(LLUICtrlFactory::getDefaultParams<LLScrollColumnHeader>());
 			params.name = "btn_" + name;
 			params.rect = temp_rect;
 			params.column = new_column;
diff --git a/indra/llui/lltooltip.cpp b/indra/llui/lltooltip.cpp
index 4bc9a9c042..fe1c2ba67c 100644
--- a/indra/llui/lltooltip.cpp
+++ b/indra/llui/lltooltip.cpp
@@ -57,6 +57,8 @@ LLToolTipView *gToolTipView = NULL;
 // Member functions
 //
 
+static LLDefaultChildRegistry::Register<LLToolTipView> register_tooltip_view("tooltip_view");
+
 LLToolTipView::Params::Params()
 {
 	mouse_opaque = false;
@@ -142,7 +144,7 @@ void LLToolTipView::drawStickyRect()
 //
 
 
-static LLDefaultChildRegistry::Register<LLToolTip> r("tool_tip");
+static LLDefaultChildRegistry::Register<LLToolTip> register_tooltip("tool_tip");
 
 
 LLToolTip::Params::Params()
diff --git a/indra/llui/lluictrlfactory.h b/indra/llui/lluictrlfactory.h
index 17e32dc7a9..0ccd3047f6 100644
--- a/indra/llui/lluictrlfactory.h
+++ b/indra/llui/lluictrlfactory.h
@@ -188,7 +188,7 @@ public:
 		T* widget = new T(params);
 		widget->initFromParams(params);
 		if (parent)
-			widget->setParent(parent);
+			parent->addChild(widget);
 		return widget;
 	}
 
diff --git a/indra/llui/llview.cpp b/indra/llui/llview.cpp
index f9b4a6b73d..dba24ee165 100644
--- a/indra/llui/llview.cpp
+++ b/indra/llui/llview.cpp
@@ -1697,8 +1697,11 @@ LLView* LLView::getChildView(const std::string& name, BOOL recurse) const
 	return child;
 }
 
+static LLFastTimer::DeclareTimer FTM_FIND_VIEWS("Find Widgets");
+
 LLView* LLView::findChildView(const std::string& name, BOOL recurse) const
 {
+	LLFastTimer ft(FTM_FIND_VIEWS);
 	//richard: should we allow empty names?
 	//if(name.empty())
 	//	return NULL;
diff --git a/indra/llui/llview.h b/indra/llui/llview.h
index c3b442e022..2607120e17 100644
--- a/indra/llui/llview.h
+++ b/indra/llui/llview.h
@@ -267,9 +267,6 @@ public:
 	// remove the specified child from the view, and set it's parent to NULL.
 	virtual void	removeChild(LLView* view);
 
-	// helper function for lluictrlfactory.h create<> template
-	void setParent(LLView* parent) { if (parent) parent->addChild(this); }
-
 	virtual BOOL	postBuild() { return TRUE; }
 
 	child_tab_order_t getCtrlOrder() const		{ return mCtrlOrder; }
diff --git a/indra/newview/llbottomtray.cpp b/indra/newview/llbottomtray.cpp
index e5cc2fce88..832694873f 100644
--- a/indra/newview/llbottomtray.cpp
+++ b/indra/newview/llbottomtray.cpp
@@ -70,7 +70,7 @@ LLBottomTray::LLBottomTray(const LLSD&)
 	//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);
+	//LLUI::getRootView()->addChild(this);
 
 	// Necessary for focus movement among child controls
 	setFocusRoot(TRUE);
diff --git a/indra/newview/llchiclet.cpp b/indra/newview/llchiclet.cpp
index 53c4bb32ca..c200a97058 100644
--- a/indra/newview/llchiclet.cpp
+++ b/indra/newview/llchiclet.cpp
@@ -812,6 +812,8 @@ LLChicletPanel::LLChicletPanel(const Params&p)
 
 LLChicletPanel::~LLChicletPanel()
 {
+	LLTransientFloaterMgr::getInstance()->removeControlView(mLeftScrollButton);
+	LLTransientFloaterMgr::getInstance()->removeControlView(mRightScrollButton);
 
 }
 
diff --git a/indra/newview/lldebugview.cpp b/indra/newview/lldebugview.cpp
index 9057d84f63..f76ec396ac 100644
--- a/indra/newview/lldebugview.cpp
+++ b/indra/newview/lldebugview.cpp
@@ -55,12 +55,16 @@ LLDebugView* gDebugView = NULL;
 //
 // Methods
 //
+static LLDefaultChildRegistry::Register<LLDebugView> r("debug_view");
 
 LLDebugView::LLDebugView(const LLDebugView::Params& p)
 :	LLView(p)
+{}
+
+void LLDebugView::init()
 {
 	LLRect r;
-	LLRect rect(p.rect);
+	LLRect rect = getLocalRect();
 
 	r.set(10, rect.getHeight() - 100, rect.getWidth()/2, 100);
 	LLConsole::Params cp;
diff --git a/indra/newview/lldebugview.h b/indra/newview/lldebugview.h
index 9cf2a59a0a..b17cdb43cd 100644
--- a/indra/newview/lldebugview.h
+++ b/indra/newview/lldebugview.h
@@ -60,6 +60,8 @@ public:
 	LLDebugView(const Params&);
 	~LLDebugView();
 
+	void init();
+
 	void setStatsVisible(BOOL visible);
 	
 	LLFastTimerView* mFastTimerView;
diff --git a/indra/newview/llfasttimerview.cpp b/indra/newview/llfasttimerview.cpp
index 2ab17d6220..71265fdd2f 100644
--- a/indra/newview/llfasttimerview.cpp
+++ b/indra/newview/llfasttimerview.cpp
@@ -256,7 +256,8 @@ BOOL LLFastTimerView::handleToolTip(S32 x, S32 y, MASK mask)
 
 			LLToolTipMgr::instance().show(LLToolTip::Params()
 				.message(mHoverTimer->getToolTip(LLFastTimer::NamedTimer::HISTORY_NUM - mScrollIndex - mHoverBarIndex))
-				.sticky_rect(screen_rect));
+				.sticky_rect(screen_rect)
+				.delay_time(0.f));
 
 			return TRUE;
 		}
diff --git a/indra/newview/llfloatersnapshot.cpp b/indra/newview/llfloatersnapshot.cpp
index fd2e7b3487..e570072803 100644
--- a/indra/newview/llfloatersnapshot.cpp
+++ b/indra/newview/llfloatersnapshot.cpp
@@ -101,6 +101,8 @@ S32 BORDER_WIDTH = 6;
 const S32 MAX_POSTCARD_DATASIZE = 1024 * 1024; // one megabyte
 const S32 MAX_TEXTURE_SIZE = 512 ; //max upload texture size 512 * 512
 
+static LLDefaultChildRegistry::Register<LLSnapshotFloaterView> r("snapshot_floater_view");
+
 ///----------------------------------------------------------------------------
 /// Class LLSnapshotLivePreview 
 ///----------------------------------------------------------------------------
@@ -2042,10 +2044,12 @@ BOOL LLFloaterSnapshot::postBuild()
 	LLSnapshotLivePreview::Params p;
 	p.rect(full_screen_rect);
 	LLSnapshotLivePreview* previewp = new LLSnapshotLivePreview(p);
-	getRootView()->removeChild(gSnapshotFloaterView);
+	LLView* parent_view = gSnapshotFloaterView->getParent();
+	
+	parent_view->removeChild(gSnapshotFloaterView);
 	// make sure preview is below snapshot floater
-	getRootView()->addChild(previewp);
-	getRootView()->addChild(gSnapshotFloaterView);
+	parent_view->addChild(previewp);
+	parent_view->addChild(gSnapshotFloaterView);
 	
 	//move snapshot floater to special purpose snapshotfloaterview
 	gFloaterView->removeChild(this);
diff --git a/indra/newview/llmoveview.cpp b/indra/newview/llmoveview.cpp
index 14da35594f..e3ba1b8e4a 100644
--- a/indra/newview/llmoveview.cpp
+++ b/indra/newview/llmoveview.cpp
@@ -598,14 +598,11 @@ BOOL LLPanelStandStopFlying::postBuild()
 void LLPanelStandStopFlying::setVisible(BOOL visible)
 {
 	//we dont need to show the panel if these buttons are not activated
-	if (visible && !mStandButton->getVisible() && !mStopFlyingButton->getVisible()) visible = false;
-
 	if (gAgent.getCameraMode() == CAMERA_MODE_MOUSELOOK) visible = false;
 
 	if (visible)
 	{
 		updatePosition();
-		getParent()->sendChildToFront(this);
 	}
 
 	LLPanel::setVisible(visible);
@@ -638,7 +635,7 @@ LLPanelStandStopFlying* LLPanelStandStopFlying::getStandStopFlyingPanel()
 	LLUICtrlFactory::getInstance()->buildPanel(panel, "panel_stand_stop_flying.xml");
 
 	panel->setVisible(FALSE);
-	LLUI::getRootView()->addChild(panel);
+	//LLUI::getRootView()->addChild(panel);
 
 	llinfos << "Build LLPanelStandStopFlying panel" << llendl;
 
@@ -680,7 +677,7 @@ void LLPanelStandStopFlying::updatePosition()
 	//align centers of a button and a floater
 	S32 x = movement_btn->calcScreenRect().getCenterX() - getRect().getWidth()/2;
 
-	S32 y = tray->getRect().getHeight();
+	S32 y = 0;
 
 	LLFloater *move_floater = LLFloaterReg::findInstance("moveview");
 	if (move_floater)
diff --git a/indra/newview/llnavigationbar.cpp b/indra/newview/llnavigationbar.cpp
index 63794be085..17b712bc5e 100644
--- a/indra/newview/llnavigationbar.cpp
+++ b/indra/newview/llnavigationbar.cpp
@@ -586,6 +586,8 @@ void LLNavigationBar::showNavigationPanel(BOOL visible)
 			// this is duplicated in 'else' section because it should be called BEFORE fb->reshape
 			reshape(nbRect.getWidth(), nbRect.getHeight());
 			setRect(nbRect);
+			// propagate size to parent container
+			getParent()->reshape(nbRect.getWidth(), nbRect.getHeight());
 
 			fb->reshape(fbRect.getWidth(), fbRect.getHeight());
 			fb->setRect(fbRect);
@@ -599,6 +601,7 @@ void LLNavigationBar::showNavigationPanel(BOOL visible)
 
 			reshape(nbRect.getWidth(), nbRect.getHeight());
 			setRect(nbRect);
+			getParent()->reshape(nbRect.getWidth(), nbRect.getHeight());
 		}
 	}
 	else
@@ -613,6 +616,7 @@ void LLNavigationBar::showNavigationPanel(BOOL visible)
 			// this is duplicated in 'else' section because it should be called BEFORE fb->reshape
 			reshape(nbRect.getWidth(), nbRect.getHeight());
 			setRect(nbRect);
+			getParent()->reshape(nbRect.getWidth(), nbRect.getHeight());
 
 			fb->reshape(fbRect.getWidth(), fbRect.getHeight());
 			fb->setRect(fbRect);
@@ -625,16 +629,12 @@ void LLNavigationBar::showNavigationPanel(BOOL visible)
 
 			reshape(nbRect.getWidth(), nbRect.getHeight());
 			setRect(nbRect);
+			getParent()->reshape(nbRect.getWidth(), nbRect.getHeight());
 		}
 	}
 
 	childSetVisible("bg_icon", fpVisible);
 	childSetVisible("bg_icon_no_fav", !fpVisible);
-
-	if(LLSideTray::instanceCreated())
-	{
-		LLSideTray::getInstance()->resetPanelRect();
-	}
 }
 
 void LLNavigationBar::showFavoritesPanel(BOOL visible)
@@ -669,6 +669,7 @@ void LLNavigationBar::showFavoritesPanel(BOOL visible)
 
 		reshape(nbRect.getWidth(), nbRect.getHeight());
 		setRect(nbRect);
+		getParent()->reshape(nbRect.getWidth(), nbRect.getHeight());
 
 		fb->reshape(fbRect.getWidth(), fbRect.getHeight());
 		fb->setRect(fbRect);
@@ -693,14 +694,11 @@ void LLNavigationBar::showFavoritesPanel(BOOL visible)
 
 		reshape(nbRect.getWidth(), nbRect.getHeight());
 		setRect(nbRect);
+		getParent()->reshape(nbRect.getWidth(), nbRect.getHeight());
 	}
 
 	childSetVisible("bg_icon", visible);
 	childSetVisible("bg_icon_no_fav", !visible);
 
 	fb->setVisible(visible);
-	if(LLSideTray::instanceCreated())
-	{
-		LLSideTray::getInstance()->resetPanelRect();
-	}
 }
diff --git a/indra/newview/llpanelpeople.cpp b/indra/newview/llpanelpeople.cpp
index 0c66e7155c..a6083a5755 100644
--- a/indra/newview/llpanelpeople.cpp
+++ b/indra/newview/llpanelpeople.cpp
@@ -198,7 +198,8 @@ public:
 
 	~LLFriendListUpdater()
 	{
-		delete mInvObserver;
+		// will be deleted by ~LLInventoryModel
+		//delete mInvObserver;
 		LLVoiceClient::getInstance()->removeObserver(this);
 		LLAvatarTracker::instance().removeObserver(this);
 	}
diff --git a/indra/newview/llpanelpeoplemenus.cpp b/indra/newview/llpanelpeoplemenus.cpp
index aaf6849fe9..7dea5eaf67 100644
--- a/indra/newview/llpanelpeoplemenus.cpp
+++ b/indra/newview/llpanelpeoplemenus.cpp
@@ -64,7 +64,6 @@ void ContextMenu::show(LLView* spawning_view, const std::vector<LLUUID>& uuids,
 		if (parent)
 		{
 			parent->removeChild(mMenu);
-			mMenu->setParent(NULL);
 		}
 		delete mMenu;
 		mMenu = NULL;
diff --git a/indra/newview/llpanelprimmediacontrols.cpp b/indra/newview/llpanelprimmediacontrols.cpp
index 73e19b3b2a..d33fcc5512 100644
--- a/indra/newview/llpanelprimmediacontrols.cpp
+++ b/indra/newview/llpanelprimmediacontrols.cpp
@@ -697,6 +697,7 @@ bool LLPanelPrimMediaControls::isMouseOver()
 		LLView* controls_view = NULL;
 		controls_view = getChild<LLView>("media_controls");
 		
+		//FIXME: rewrite as LLViewQuery or get hover set from LLViewerWindow?
 		if(controls_view && controls_view->getVisible())
 		{
 			controls_view->screenPointToLocal(cursor_pos_gl.mX, cursor_pos_gl.mY, &x, &y);
diff --git a/indra/newview/llpanelteleporthistory.cpp b/indra/newview/llpanelteleporthistory.cpp
index 72856d5b82..057cdde6f0 100644
--- a/indra/newview/llpanelteleporthistory.cpp
+++ b/indra/newview/llpanelteleporthistory.cpp
@@ -163,7 +163,6 @@ void LLTeleportHistoryPanel::ContextMenu::show(LLView* spawning_view, S32 index,
 		if (parent)
 		{
 			parent->removeChild(mMenu);
-			mMenu->setParent(NULL);
 		}
 		delete mMenu;
 	}
@@ -658,7 +657,6 @@ void LLTeleportHistoryPanel::onAccordionTabRightClick(LLView *view, S32 x, S32 y
 		if (parent)
 		{
 			parent->removeChild(mAccordionTabMenu);
-			mAccordionTabMenu->setParent(NULL);
 		}
 		delete mAccordionTabMenu;
 	}
diff --git a/indra/newview/llsidetray.cpp b/indra/newview/llsidetray.cpp
index a11ee05532..061587f11b 100644
--- a/indra/newview/llsidetray.cpp
+++ b/indra/newview/llsidetray.cpp
@@ -100,7 +100,7 @@ LLSideTray* LLSideTray::getInstance()
 {
 	if (!sInstance)
 	{
-		sInstance = LLUICtrlFactory::createFromFile<LLSideTray>("panel_side_tray.xml",gViewerWindow->getRootView(), LLRootView::child_registry_t::instance());
+		sInstance = LLUICtrlFactory::createFromFile<LLSideTray>("panel_side_tray.xml",NULL, LLRootView::child_registry_t::instance());
 	}
 
 	return sInstance;
@@ -148,7 +148,6 @@ public:
 	/*virtual*/ bool	addChild	(LLView* view, S32 tab_group);
 	
 	
-	void			arrange		(S32 width, S32 height);
 	void			reshape		(S32 width, S32 height, BOOL called_from_parent = TRUE);
 	
 	static LLSideTrayTab*  createInstance	();
@@ -156,8 +155,6 @@ public:
 	const std::string& getDescription () const { return mDescription;}
 	const std::string& getTabTitle() const { return mTabTitle;}
 	
-	void draw();
-	
 	void			onOpen		(const LLSD& key);
 	
 private:
@@ -209,60 +206,24 @@ BOOL LLSideTrayTab::postBuild()
 
 static const S32 splitter_margin = 1;
 
-//virtual 
-void	LLSideTrayTab::arrange(S32 width, S32 height )
-{
-	if(!mMainPanel)
-		return;
-	
-	S32 offset = 0;
-
-	LLView* title_panel = findChildView(TAB_PANEL_CAPTION_NAME, true);
-
-	if(title_panel)
-	{
-		title_panel->setOrigin( 0, height - title_panel->getRect().getHeight() );
-		offset = title_panel->getRect().getHeight();
-	}
-
-	LLRect sRect = mMainPanel->getRect();
-	sRect.setLeftTopAndSize( splitter_margin, height - offset - splitter_margin, width - 2*splitter_margin, height - offset - 2*splitter_margin);
-	mMainPanel->reshape(sRect.getWidth(),sRect.getHeight());
-	mMainPanel->setRect(sRect);
-	
-
-	
-}
-
 void LLSideTrayTab::reshape		(S32 width, S32 height, BOOL called_from_parent )
 {
-	if(!mMainPanel)
-		return;
-	S32 offset = 0;
-
+	LLPanel::reshape(width, height, called_from_parent);
 	LLView* title_panel = findChildView(TAB_PANEL_CAPTION_NAME, true);
-
-	if(title_panel)
+	if (!title_panel)
 	{
-		title_panel->setOrigin( 0, height - title_panel->getRect().getHeight() );
-		title_panel->reshape(width,title_panel->getRect().getHeight());
-		offset = title_panel->getRect().getHeight();
+		// not fully constructed yet
+		return;
 	}
 
-	
-
-	LLRect sRect = mMainPanel->getRect();
-	sRect.setLeftTopAndSize( splitter_margin, height - offset - splitter_margin, width - 2*splitter_margin, height - offset - 2*splitter_margin);
-	//mMainPanel->setMaxWidth(sRect.getWidth());
-	mMainPanel->reshape(sRect.getWidth(), sRect.getHeight());
-	
-	mMainPanel->setRect(sRect);
-
-}
+	S32 title_height = title_panel->getRect().getHeight();
+	title_panel->setOrigin( 0, height - title_height );
+	title_panel->reshape(width,title_height);
 
-void LLSideTrayTab::draw()
-{
-	LLPanel::draw();
+	LLRect sRect;
+	sRect.setLeftTopAndSize( splitter_margin, height - title_height - splitter_margin, 
+							width - 2*splitter_margin, height - title_height - 2*splitter_margin);
+	mMainPanel->setShape(sRect);
 }
 
 void	LLSideTrayTab::onOpen		(const LLSD& key)
@@ -300,17 +261,20 @@ LLSideTray::LLSideTray(Params& params)
 	    ,mActiveTab(0)
 		,mCollapsed(false)
 		,mCollapseButton(0)
-	    ,mMaxBarWidth(params.rect.width)
 {
 	mCollapsed=params.collapsed;
 
-
 	LLUICtrl::CommitCallbackRegistry::Registrar& commit = LLUICtrl::CommitCallbackRegistry::currentRegistrar();
 
 	// register handler function to process data from the xml. 
 	// panel_name should be specified via "parameter" attribute.
 	commit.add("SideTray.ShowPanel", boost::bind(&LLSideTray::showPanel, this, _2, LLUUID::null));
 	LLTransientFloaterMgr::getInstance()->addControlView(this);
+
+	LLPanel::Params p;
+	p.name = "buttons_panel";
+	p.mouse_opaque = false;
+	mButtonsPanel = LLUICtrlFactory::create<LLPanel>(p);
 }
 
 
@@ -399,7 +363,7 @@ LLButton* LLSideTray::createButton	(const std::string& name,const std::string& i
 	rect.setOriginAndSize(0, 0, sidetray_params.default_button_width, sidetray_params.default_button_height); 
 
 	bparams.name(name);
-	bparams.follows.flags (FOLLOWS_LEFT | FOLLOWS_BOTTOM);
+	bparams.follows.flags (FOLLOWS_LEFT | FOLLOWS_TOP);
 	bparams.rect (rect);
 	bparams.tab_stop(false);
 	bparams.image_unselected.name(sidetray_params.tab_btn_image_normal);
@@ -416,7 +380,7 @@ LLButton* LLSideTray::createButton	(const std::string& name,const std::string& i
 		button->setImageOverlay(image);
 	}
 
-	addChildInBack(button);
+	mButtonsPanel->addChildInBack(button);
 
 	return button;
 }
@@ -491,7 +455,7 @@ void		LLSideTray::onToggleCollapse()
 
 void LLSideTray::reflectCollapseChange()
 {
-	setPanelRect();
+	updateSidetrayVisibility();
 
 	if(mCollapsed)
 	{
@@ -500,23 +464,24 @@ void LLSideTray::reflectCollapseChange()
 	}
 	else
 	{
-		gFloaterView->setSnapOffsetRight(mMaxBarWidth);
+		gFloaterView->setSnapOffsetRight(getRect().getWidth());
 		setFocus(TRUE);
 	}
 
 	gFloaterView->refresh();
 }
 
-void LLSideTray::arrange			()
+void LLSideTray::arrange()
 {
 	static LLSideTray::Params sidetray_params(LLUICtrlFactory::getDefaultParams<LLSideTray>());	
 
-	setPanelRect();
+	updateSidetrayVisibility();
 	
 	LLRect ctrl_rect;
-	ctrl_rect.setLeftTopAndSize(0,getRect().getHeight()-sidetray_params.default_button_width
-							,sidetray_params.default_button_width
-							,sidetray_params.default_button_height);
+	ctrl_rect.setLeftTopAndSize(0,
+								mButtonsPanel->getRect().getHeight() - sidetray_params.default_button_width,
+								sidetray_params.default_button_width,
+								sidetray_params.default_button_height);
 
 	mCollapseButton->setRect(ctrl_rect);
 
@@ -528,9 +493,10 @@ void LLSideTray::arrange			()
 	{
 		LLSideTrayTab* sidebar_tab = *child_it;
 		
-		ctrl_rect.setLeftTopAndSize(0,getRect().getHeight()-offset
-								,sidetray_params.default_button_width
-								,sidetray_params.default_button_height);
+		ctrl_rect.setLeftTopAndSize(0,
+									mButtonsPanel->getRect().getHeight()-offset,
+									sidetray_params.default_button_width,
+									sidetray_params.default_button_height);
 
 		if(mTabButtons.find(sidebar_tab->getName()) == mTabButtons.end())
 			continue;
@@ -544,14 +510,11 @@ void LLSideTray::arrange			()
 		btn->setVisible(ctrl_rect.mBottom > 0);
 	}
 
-	ctrl_rect.setLeftTopAndSize(sidetray_params.default_button_width,getRect().getHeight(),mMaxBarWidth,getRect().getHeight());
-
 	//arrange tabs
-	for ( child_it = mTabs.begin(); child_it != mTabs.end(); ++child_it)
+	for ( child_vector_t::iterator child_it = mTabs.begin(); child_it != mTabs.end(); ++child_it)
 	{
 		LLSideTrayTab* sidebar_tab = *child_it;
-		sidebar_tab->setRect(ctrl_rect);
-		sidebar_tab->arrange(mMaxBarWidth,getRect().getHeight());
+		sidebar_tab->setShape(getLocalRect());
 	}
 }
 
@@ -580,7 +543,7 @@ void LLSideTray::collapseSideBar()
 	{
 		mCollapseButton->setImageOverlay( home_tab->mImage );
 	}
-	mActiveTab->setVisible(FALSE);
+	//mActiveTab->setVisible(FALSE);
 	reflectCollapseChange();
 	setFocus( FALSE );
 
@@ -596,7 +559,6 @@ void LLSideTray::expandSideBar()
 	}
 	LLSD key;//empty
 	mActiveTab->onOpen(key);
-	mActiveTab->setVisible(TRUE);
 
 	reflectCollapseChange();
 }
@@ -612,15 +574,6 @@ void LLSideTray::highlightFocused()
 	*/
 }
 
-BOOL	LLSideTray::handleScrollWheel(S32 x, S32 y, S32 mask)
-{
-	BOOL ret = LLPanel::handleScrollWheel(x,y,mask);
-
-	if(!ret && childFromPoint(x,y) != 0 )
-		return TRUE;//mouse wheel over sidetray buttons, eat mouse wheel
-	return ret;
-}
-
 //virtual
 BOOL		LLSideTray::handleMouseDown	(S32 x, S32 y, MASK mask)
 {
@@ -630,58 +583,13 @@ BOOL		LLSideTray::handleMouseDown	(S32 x, S32 y, MASK mask)
 	return ret;
 }
 
-void LLSideTray::reshape			(S32 width, S32 height, BOOL called_from_parent)
+void LLSideTray::reshape(S32 width, S32 height, BOOL called_from_parent)
 {
-	
 	LLPanel::reshape(width, height, called_from_parent);
 	if(!mActiveTab)
 		return;
 	
-	static LLSideTray::Params sidetray_params(LLUICtrlFactory::getDefaultParams<LLSideTray>());	
-
-	setPanelRect();
-
-	LLRect ctrl_rect;
-	ctrl_rect.setLeftTopAndSize(0
-							,getRect().getHeight()-sidetray_params.default_button_width
-							,sidetray_params.default_button_width
-							,sidetray_params.default_button_height);
-	
-	mCollapseButton->setRect(ctrl_rect);
-
-	//arrange tab buttons
-	child_vector_const_iter_t child_it;
-	int offset = (sidetray_params.default_button_height+sidetray_params.default_button_margin)*2;
-	for ( child_it = mTabs.begin(); child_it != mTabs.end(); ++child_it)	
-	{
-		LLSideTrayTab* sidebar_tab = *child_it;
-		
-		ctrl_rect.setLeftTopAndSize(0,getRect().getHeight()-offset
-								,sidetray_params.default_button_width
-								,sidetray_params.default_button_height);
-
-		if(mTabButtons.find(sidebar_tab->getName()) == mTabButtons.end())
-			continue;
-
-		LLButton* btn = mTabButtons[sidebar_tab->getName()];
-
-		btn->setRect(ctrl_rect);
-		offset+=sidetray_params.default_button_height;
-		offset+=sidetray_params.default_button_margin;
-
-		btn->setVisible(ctrl_rect.mBottom > 0);
-	}
-
-	//arrange tabs
-	
-	for ( child_it = mTabs.begin(); child_it != mTabs.end(); ++child_it)
-	{
-		LLSideTrayTab* sidebar_tab = *child_it;
-		sidebar_tab->reshape(mMaxBarWidth,getRect().getHeight());
-		ctrl_rect.setLeftTopAndSize(sidetray_params.default_button_width,getRect().getHeight(),mMaxBarWidth,getRect().getHeight());
-		sidebar_tab->setRect(ctrl_rect);
-		
-	}
+	arrange();
 }
 
 /**
@@ -729,42 +637,12 @@ LLPanel*	LLSideTray::showPanel		(const std::string& panel_name, const LLSD& para
 static const S32	fake_offset = 132;
 static const S32	fake_top_offset = 18;
 
-void LLSideTray::resetPanelRect	()
-{
-	const LLRect& parent_rect = gViewerWindow->getRootView()->getRect();
-
-	static LLSideTray::Params sidetray_params(LLUICtrlFactory::getDefaultParams<LLSideTray>());	
-
-	S32 panel_width = sidetray_params.default_button_width;
-	panel_width += mCollapsed ? 0 : mMaxBarWidth;
-
-	S32 panel_height = parent_rect.getHeight()-fake_top_offset;
-
-	reshape(panel_width,panel_height);
-}
-
-void	LLSideTray::setPanelRect	()
+void	LLSideTray::updateSidetrayVisibility()
 {
-	LLNavigationBar* nav_bar = LLNavigationBar::getInstance();
-	LLRect nav_rect = nav_bar->getRect();
-	
-	static LLSideTray::Params sidetray_params(LLUICtrlFactory::getDefaultParams<LLSideTray>());	
-
-	const LLRect& parent_rect = gViewerWindow->getRootView()->getRect();
-
-	S32 panel_width = sidetray_params.default_button_width;
-	panel_width += mCollapsed ? 0 : mMaxBarWidth;
-
-	S32 panel_height = parent_rect.getHeight()-fake_top_offset - nav_rect.getHeight();
-	S32 panel_top = parent_rect.mTop-fake_top_offset - nav_rect.getHeight();
-
-	LLRect panel_rect;
-	panel_rect.setLeftTopAndSize( parent_rect.mRight-panel_width, panel_top, panel_width, panel_height);
-	setRect(panel_rect);
+	// set visibility of parent container based on collapsed state
+	if (getParent())
+	{
+		getParent()->setVisible(!mCollapsed);
+	}
 }
 
-S32	LLSideTray::getTrayWidth()
-{
-	static LLSideTray::Params sidetray_params(LLUICtrlFactory::getDefaultParams<LLSideTray>());	
-	return getRect().getWidth() - (sidetray_params.default_button_width + sidetray_params.default_button_margin);
-}
diff --git a/indra/newview/llsidetray.h b/indra/newview/llsidetray.h
index b49251ec79..4d6081e230 100644
--- a/indra/newview/llsidetray.h
+++ b/indra/newview/llsidetray.h
@@ -118,6 +118,8 @@ public:
 		LLPanel::setVisible(visible);
 	}
 
+	LLPanel*	getButtonsPanel() { return mButtonsPanel; }
+
 public:
 	virtual ~LLSideTray(){};
 
@@ -129,13 +131,8 @@ public:
 	bool		addChild		(LLView* view, S32 tab_group);
 
 	BOOL		handleMouseDown	(S32 x, S32 y, MASK mask);
-	BOOL		handleScrollWheel(S32 x, S32 y, S32 mask);
 	
 	void		reshape			(S32 width, S32 height, BOOL called_from_parent = TRUE);
-	S32			getTrayWidth();
-
-	void		resetPanelRect	();
-	
 
 protected:
 	LLSideTrayTab* getTab		(const std::string& name);
@@ -147,7 +144,7 @@ protected:
 
 	void		toggleTabButton	(LLSideTrayTab* tab);
 
-	void		setPanelRect	();
+	void		updateSidetrayVisibility();
 
 	
 
@@ -163,15 +160,15 @@ private:
 
 private:
 
-	std::map<std::string,LLButton*>	mTabButtons;
+	LLPanel*						mButtonsPanel;
+	typedef std::map<std::string,LLButton*> button_map_t;
+	button_map_t					mTabButtons;
 	child_vector_t					mTabs;
 	LLSideTrayTab*					mActiveTab;	
 	
 	LLButton*						mCollapseButton;
 	bool							mCollapsed;
 	
-	S32								mMaxBarWidth;
-
 	static LLSideTray*				sInstance;
 };
 
diff --git a/indra/newview/llspeakbutton.cpp b/indra/newview/llspeakbutton.cpp
index d441762fa6..57ea018f25 100644
--- a/indra/newview/llspeakbutton.cpp
+++ b/indra/newview/llspeakbutton.cpp
@@ -129,6 +129,8 @@ LLSpeakButton::LLSpeakButton(const Params& p)
 
 LLSpeakButton::~LLSpeakButton()
 {
+	LLTransientFloaterMgr::getInstance()->removeControlView(mSpeakBtn);
+	LLTransientFloaterMgr::getInstance()->removeControlView(mShowBtn);
 }
 
 void LLSpeakButton::onMouseDown_SpeakBtn()
diff --git a/indra/newview/llviewermenu.cpp b/indra/newview/llviewermenu.cpp
index cb1be5fabc..97879046a0 100644
--- a/indra/newview/llviewermenu.cpp
+++ b/indra/newview/llviewermenu.cpp
@@ -468,16 +468,6 @@ void set_underclothes_menu_options()
 void init_menus()
 {
 	S32 top = gViewerWindow->getRootView()->getRect().getHeight();
-	S32 width = gViewerWindow->getRootView()->getRect().getWidth();
-
-	//
-	// Main menu bar
-	//
-	gMenuHolder = new LLViewerMenuHolderGL();
-	gMenuHolder->setRect(LLRect(0, top, width, 0));
-	gMenuHolder->setFollowsAll();
-
-	LLMenuGL::sMenuContainer = gMenuHolder;
 
 	// Initialize actions
 	initialize_menus();
@@ -7078,6 +7068,11 @@ void handle_test_load_url(void*)
 //
 // LLViewerMenuHolderGL
 //
+static LLDefaultChildRegistry::Register<LLViewerMenuHolderGL> r("menu_holder");
+
+LLViewerMenuHolderGL::LLViewerMenuHolderGL(const LLViewerMenuHolderGL::Params& p)
+: LLMenuHolderGL(p)
+{}
 
 BOOL LLViewerMenuHolderGL::hideMenus()
 {
@@ -7087,8 +7082,11 @@ BOOL LLViewerMenuHolderGL::hideMenus()
 	mParcelSelection = NULL;
 	mObjectSelection = NULL;
 
-	gMenuBarView->clearHoverItem();
-	gMenuBarView->resetMenuTrigger();
+	if (gMenuBarView)
+	{
+		gMenuBarView->clearHoverItem();
+		gMenuBarView->resetMenuTrigger();
+	}
 
 	return handled;
 }
diff --git a/indra/newview/llviewermenu.h b/indra/newview/llviewermenu.h
index db4eb3be9d..9a6fe03f9f 100644
--- a/indra/newview/llviewermenu.h
+++ b/indra/newview/llviewermenu.h
@@ -133,6 +133,11 @@ void handle_export_selected( void * );
 class LLViewerMenuHolderGL : public LLMenuHolderGL
 {
 public:
+	struct Params : public LLInitParam::Block<Params, LLMenuHolderGL::Params>
+	{};
+
+	LLViewerMenuHolderGL(const Params& p);
+
 	virtual BOOL hideMenus();
 	
 	void setParcelSelection(LLSafeHandle<LLParcelSelection> selection);
diff --git a/indra/newview/llviewerwindow.cpp b/indra/newview/llviewerwindow.cpp
index fc09c946af..29ce2510f2 100644
--- a/indra/newview/llviewerwindow.cpp
+++ b/indra/newview/llviewerwindow.cpp
@@ -1377,6 +1377,10 @@ void LLViewerWindow::initGLDefaults()
 	gCylinder.prerender();
 }
 
+struct MainPanel : public LLPanel
+{
+};
+
 void LLViewerWindow::initBase()
 {
 	S32 height = getWindowHeight();
@@ -1400,30 +1404,18 @@ void LLViewerWindow::initBase()
 	// Create the floater view at the start so that other views can add children to it. 
 	// (But wait to add it as a child of the root view so that it will be in front of the 
 	// other views.)
+	MainPanel* main_view = new MainPanel();
+	LLUICtrlFactory::instance().buildPanel(main_view, "main_view.xml");
+	main_view->setShape(full_window);
+	getRootView()->addChild(main_view);
+
+	// placeholder widget that controls where "world" is rendered
+	mWorldViewPlaceholder = main_view->getChildView("world_view_rect")->getHandle();
 
 	// Constrain floaters to inside the menu and status bar regions.
-	LLRect floater_view_rect = full_window;
-	// make space for menu bar
-	floater_view_rect.mTop -= MENU_BAR_HEIGHT;
-
-	LLFloaterView::Params fvparams;
-	fvparams.name("Floater View");
-	fvparams.rect(floater_view_rect);
-	fvparams.mouse_opaque(false);
-	fvparams.follows.flags(FOLLOWS_ALL);
-	fvparams.tab_stop(false);
-	gFloaterView = LLUICtrlFactory::create<LLFloaterView> (fvparams);
-
-	LLSnapshotFloaterView::Params snapParams;
-	snapParams.name("Snapshot Floater View");
-	snapParams.rect(full_window);
-	snapParams.enabled(false);
-	gSnapshotFloaterView = LLUICtrlFactory::create<LLSnapshotFloaterView> (snapParams);
+	gFloaterView = getRootView()->getChild<LLFloaterView>("Floater View");
+	gSnapshotFloaterView = getRootView()->getChild<LLSnapshotFloaterView>("Snapshot Floater View");
 	
-	// Snapshot floater must start invisible otherwise it eats all
-	// the tooltips. JC
-	gSnapshotFloaterView->setVisible(FALSE);
-
 	// Console
 	llassert( !gConsole );
 	LLConsole::Params cp;
@@ -1447,43 +1439,21 @@ void LLViewerWindow::initBase()
 	}
 #endif
 
-	// Debug view over the console
-	LLDebugView::Params debug_p;
-	debug_p.name("DebugView");
-	debug_p.rect(full_window);
-	debug_p.follows.flags(FOLLOWS_ALL);
-	debug_p.visible(true);
-	gDebugView = LLUICtrlFactory::create<LLDebugView>(debug_p);
-	getRootView()->addChild(gDebugView);
-
-	// Add floater view at the end so it will be on top, and give it tab priority over others
-	getRootView()->addChild(gFloaterView, -1);
-	getRootView()->addChild(gSnapshotFloaterView);
-
-	// notify above floaters!
-	LLRect notify_rect = floater_view_rect;
-	LLNotifyBoxView::Params p;
-	p.name("notify_container");
-	p.rect(notify_rect);
-	p.mouse_opaque(false);
-	p.follows.flags(FOLLOWS_ALL);
-	gNotifyBoxView = LLUICtrlFactory::create<LLNotifyBoxView> (p);
-	getRootView()->addChild(gNotifyBoxView, -2);
-
-	// View for tooltips
-	LLToolTipView::Params hvp;
-	hvp.name("tooltip view");
-	hvp.rect(full_window);
-	hvp.follows.flags(FOLLOWS_ALL);
-	gToolTipView = LLUICtrlFactory::create<LLToolTipView>(hvp);
-	gToolTipView->setFollowsAll();
-	getRootView()->addChild(gToolTipView);
+	gDebugView = getRootView()->getChild<LLDebugView>("DebugView");
+	gDebugView->init();
+	gNotifyBoxView = getRootView()->getChild<LLNotifyBoxView>("notify_container");
+	gToolTipView = getRootView()->getChild<LLToolTipView>("tooltip view");
 
 	// Add the progress bar view (startup view), which overrides everything
 	mProgressView = new LLProgressView(full_window);
 	getRootView()->addChild(mProgressView);
 	setShowProgress(FALSE);
 	setProgressCancelButtonVisible(FALSE);
+
+	gMenuHolder = getRootView()->getChild<LLViewerMenuHolderGL>("Menu Holder");
+
+	LLMenuGL::sMenuContainer = gMenuHolder;
+
 }
 
 void LLViewerWindow::initWorldUI()
@@ -1492,20 +1462,19 @@ void LLViewerWindow::initWorldUI()
 	S32 width = mRootView->getRect().getWidth();
 	LLRect full_window(0, height, width, 0);
 
-	gIMMgr = LLIMMgr::getInstance();
 
-	// side tray
-	getRootView()->addChild(LLSideTray::getInstance());
+	gIMMgr = LLIMMgr::getInstance();
 
 	getRootView()->sendChildToFront(gFloaterView);
 	getRootView()->sendChildToFront(gSnapshotFloaterView);
 
 	// new bottom panel
-	LLRect rc = LLBottomTray::getInstance()->getRect();
-	rc.mLeft = 0;
-	rc.mRight = mRootView->getRect().getWidth();
-	LLBottomTray::getInstance()->reshape(rc.getWidth(),rc.getHeight(),FALSE);
-	LLBottomTray::getInstance()->setRect(rc);
+	LLPanel* bottom_tray_container = getRootView()->getChild<LLPanel>("bottom_tray_container");
+	LLBottomTray* bottom_tray = LLBottomTray::getInstance();
+	bottom_tray->setShape(bottom_tray_container->getLocalRect());
+	bottom_tray->setFollowsAll();
+	bottom_tray_container->addChild(bottom_tray);
+	bottom_tray_container->setVisible(TRUE);
 
 	// Pre initialize instance communicate instance;
 	//  currently needs to happen before initializing chat or IM
@@ -1521,17 +1490,6 @@ void LLViewerWindow::initWorldUI()
 	gMorphView = LLUICtrlFactory::create<LLMorphView>(mvp);
 	getRootView()->addChild(gMorphView);
 
-	// Make space for nav bar.
-	LLNavigationBar* navbar = LLNavigationBar::getInstance();
-	LLRect floater_view_rect = gFloaterView->getRect();
-	LLRect notify_view_rect = gNotifyBoxView->getRect();
-	floater_view_rect.mTop -= navbar->getDefNavBarHeight();
-	floater_view_rect.mBottom += LLBottomTray::getInstance()->getRect().getHeight();
-	notify_view_rect.mTop -= navbar->getDefNavBarHeight();
-	notify_view_rect.mBottom += LLBottomTray::getInstance()->getRect().getHeight();
-	gFloaterView->setRect(floater_view_rect);
-	gNotifyBoxView->setRect(notify_view_rect);
-
 	LLWorldMapView::initClass();
 	
 	// Force gFloaterWorldMap to initialize
@@ -1542,22 +1500,23 @@ void LLViewerWindow::initWorldUI()
 	LLFloaterReg::hideInstance("build");
 
 	// Status bar
-	S32 menu_bar_height = gMenuBarView->getRect().getHeight();
-	LLRect root_rect = getRootView()->getRect();
-	LLRect status_rect(0, root_rect.getHeight(), root_rect.getWidth(), root_rect.getHeight() - menu_bar_height);
-	gStatusBar = new LLStatusBar(status_rect);
-	gStatusBar->setFollows(FOLLOWS_LEFT | FOLLOWS_RIGHT | FOLLOWS_TOP);
-
-	gStatusBar->reshape(root_rect.getWidth(), gStatusBar->getRect().getHeight(), TRUE);
-	gStatusBar->translate(0, root_rect.getHeight() - gStatusBar->getRect().getHeight());
+	LLPanel* status_bar_container = getRootView()->getChild<LLPanel>("status_bar_container");
+	gStatusBar = new LLStatusBar(status_bar_container->getLocalRect());
+	gStatusBar->setFollowsAll();
+	gStatusBar->setShape(status_bar_container->getLocalRect());
 	// sync bg color with menu bar
 	gStatusBar->setBackgroundColor( gMenuBarView->getBackgroundColor().get() );
+	status_bar_container->addChild(gStatusBar);
+	status_bar_container->setVisible(TRUE);
 
 	// Navigation bar
-	navbar->reshape(root_rect.getWidth(), navbar->getRect().getHeight(), TRUE); // *TODO: redundant?
-	navbar->translate(0, root_rect.getHeight() - menu_bar_height - navbar->getRect().getHeight()); // FIXME
-	navbar->setBackgroundColor(gMenuBarView->getBackgroundColor().get());
+	LLPanel* nav_bar_container = getRootView()->getChild<LLPanel>("nav_bar_container");
 
+	LLNavigationBar* navbar = LLNavigationBar::getInstance();
+	navbar->setShape(nav_bar_container->getLocalRect());
+	navbar->setBackgroundColor(gMenuBarView->getBackgroundColor().get());
+	nav_bar_container->addChild(navbar);
+	nav_bar_container->setVisible(TRUE);
 	
 	if (!gSavedSettings.getBOOL("ShowNavbarNavigationPanel"))
 	{
@@ -1589,19 +1548,6 @@ void LLViewerWindow::initWorldUI()
 		LLBottomTray::getInstance()->showGestureButton(FALSE);
 	}
 
-	getRootView()->addChild(gStatusBar);
-	getRootView()->addChild(navbar);
-
-
-	//sidetray
-	//then notify area
-	//then menu
-	//getRootView()->sendChildToFront(LLSideTray::getInstance());
-
-	getRootView()->sendChildToFront(gNotifyBoxView);
-	// menu holder appears on top to get first pass at all mouse events
-	getRootView()->sendChildToFront(gMenuHolder);
-
 	if ( gHUDView == NULL )
 	{
 		LLRect hud_rect = full_window;
@@ -1615,11 +1561,27 @@ void LLViewerWindow::initWorldUI()
 		getRootView()->addChildInBack(gHUDView);
 	}
 
-	// this allows not to see UI elements created while UI initializing after Alt+Tab was pressed during login. EXT-744.
-	moveProgressViewToFront();
-
-	// tooltips are always on top
-	getRootView()->sendChildToFront(gToolTipView);
+	LLPanel* panel_ssf_container = getRootView()->getChild<LLPanel>("stand_stop_flying_container");
+	LLPanelStandStopFlying* panel_stand_stop_flying	= LLPanelStandStopFlying::getInstance();
+	panel_stand_stop_flying->setShape(panel_ssf_container->getLocalRect());
+	panel_stand_stop_flying->setFollowsAll();
+	panel_ssf_container->addChild(panel_stand_stop_flying);
+	panel_ssf_container->setVisible(TRUE);
+
+	// put sidetray in container
+	LLPanel* side_tray_container = getRootView()->getChild<LLPanel>("side_tray_container");
+	LLSideTray* sidetrayp = LLSideTray::getInstance();
+	sidetrayp->setShape(side_tray_container->getLocalRect());
+	sidetrayp->setFollowsAll();
+	side_tray_container->addChild(sidetrayp);
+	side_tray_container->setVisible(FALSE);
+	
+	// put sidetray buttons in their own panel
+	LLPanel* buttons_panel = sidetrayp->getButtonsPanel();
+	LLPanel* buttons_panel_container = getRootView()->getChild<LLPanel>("side_bar_tabs");
+	buttons_panel->setShape(buttons_panel_container->getLocalRect());
+	buttons_panel->setFollowsAll();
+	buttons_panel_container->addChild(buttons_panel);
 }
 
 // Destroy the UI
@@ -2334,29 +2296,6 @@ void LLViewerWindow::moveCursorToCenter()
 	LLUI::setMousePositionScreen(x, y);	
 }
 
-void LLViewerWindow::updateBottomTrayRect()
-{
-	if(LLBottomTray::instanceExists() && LLSideTray::instanceCreated())
-	{
-		S32 side_tray_width = 0;
-		if(LLSideTray::getInstance()->getVisible())
-		{
-			side_tray_width = LLSideTray::getInstance()->getTrayWidth();
-		}
-
-		LLBottomTray* bottom_tray = LLBottomTray::getInstance();
-		S32 right = llround((F32)mWindowRect.mRight / mDisplayScale.mV[VX]) - side_tray_width;
-
-		LLRect rc = bottom_tray->getRect();
-		if (right != rc.mRight)
-		{
-			rc.mRight = right;
-			bottom_tray->reshape(rc.getWidth(), rc.getHeight(), FALSE);
-			bottom_tray->setRect(rc);
-			mOnBottomTrayWidthChanged();
-		}
-	}
-}
 
 //////////////////////////////////////////////////////////////////////
 //
@@ -2398,9 +2337,10 @@ void LLViewerWindow::updateUI()
 {
 	static std::string last_handle_msg;
 
-	updateWorldViewRect();
+	// animate layout stacks so we have up to date rect for world view
+	LLLayoutStack::updateClass();
 
-	updateBottomTrayRect();
+	updateWorldViewRect();
 
 	LLView::sMouseHandlerMessage.clear();
 
@@ -2900,32 +2840,20 @@ void LLViewerWindow::updateKeyboardFocus()
 		LLSideTray::getInstance()->highlightFocused();
 }
 
+static LLFastTimer::DeclareTimer FTM_UPDATE_WORLD_VIEW("Update World View");
 void LLViewerWindow::updateWorldViewRect(bool use_full_window)
 {
-	if (!LLSideTray::instanceCreated()) return;
+	LLFastTimer ft(FTM_UPDATE_WORLD_VIEW);
 
 	// start off using whole window to render world
 	LLRect new_world_rect = mWindowRect;
 
-	if (use_full_window == false)
+	if (use_full_window == false && mWorldViewPlaceholder.get())
 	{
-		// pull in right side of world view based on sidetray
-		LLSideTray* sidetray = LLSideTray::getInstance();
-		if (sidetray->getVisible())
-		{
-			new_world_rect.mRight -= llround((F32)sidetray->getTrayWidth() * mDisplayScale.mV[VX]);
-		}
-
-		// push top of world view below nav bar
-		if (LLNavigationBar::getInstance()->getVisible())
-		{
-			LLNavigationBar* barp = LLNavigationBar::getInstance();
-			LLRect nav_bar_rect;
-			if(barp->localRectToOtherView(barp->getLocalRect(), &nav_bar_rect, mRootView))
-			{
-				new_world_rect.mTop = llround((F32)LLNavigationBar::getInstance()->getRect().mBottom * mDisplayScale.mV[VY]);
-			}
-		}
+		new_world_rect = mWorldViewPlaceholder.get()->calcScreenRect();
+		// clamp to at least a 1x1 rect so we don't try to allocate zero width gl buffers
+		new_world_rect.mTop = llmax(new_world_rect.mTop, new_world_rect.mBottom + 1);
+		new_world_rect.mRight = llmax(new_world_rect.mRight, new_world_rect.mLeft + 1);
 	}
 
 	if (mWorldViewRect != new_world_rect)
diff --git a/indra/newview/llviewerwindow.h b/indra/newview/llviewerwindow.h
index c2906b1718..d8f0a99a49 100644
--- a/indra/newview/llviewerwindow.h
+++ b/indra/newview/llviewerwindow.h
@@ -294,7 +294,6 @@ public:
 	void				updateKeyboardFocus();		
 
 	void			updateWorldViewRect(bool use_full_window=false);
-	void			updateBottomTrayRect();
 
 	BOOL			handleKey(KEY key, MASK mask);
 	void			handleScrollWheel	(S32 clicks);
@@ -451,6 +450,8 @@ protected:
 	BOOL			mIgnoreActivate;
 
 	std::string		mInitAlert;			// Window / GL initialization requires an alert
+
+	LLHandle<LLView> mWorldViewPlaceholder;	// widget that spans the portion of screen dedicated to rendering the 3d world
 	
 	class LLDebugText* mDebugText; // Internal class for debug text
 	
diff --git a/indra/newview/pipeline.cpp b/indra/newview/pipeline.cpp
index 2daaf77772..ba1732bc92 100644
--- a/indra/newview/pipeline.cpp
+++ b/indra/newview/pipeline.cpp
@@ -506,8 +506,10 @@ void LLPipeline::destroyGL()
 	}
 }
 
+static LLFastTimer::DeclareTimer FTM_RESIZE_SCREEN_TEXTURE("Resize Screen Texture");
 void LLPipeline::resizeScreenTexture()
 {
+	LLFastTimer ft(FTM_RESIZE_SCREEN_TEXTURE);
 	if (gPipeline.canUseVertexShaders() && assertInitialized())
 	{
 		GLuint resX = gViewerWindow->getWorldViewWidth();
diff --git a/indra/newview/skins/default/xui/en/floater_aaa.xml b/indra/newview/skins/default/xui/en/floater_aaa.xml
index 4d5268681b..d0d0cc64c5 100644
--- a/indra/newview/skins/default/xui/en/floater_aaa.xml
+++ b/indra/newview/skins/default/xui/en/floater_aaa.xml
@@ -1,24 +1,9 @@
 <?xml version="1.0" encoding="utf-8" standalone="yes" ?>
 <floater
- legacy_header_height="18"
- height="440"
+ height="768"
  layout="topleft"
  name="floater_aaa"
- help_topic="floater_aaa"
- save_rect="true"
  can_resize="true" 
- title="ABOUT [APP_NAME]"
- width="470">
-    <text_editor
-     follows="left|top|right|bottom"
-     height="400"
-     layout="topleft"
-     left="6"
-     max_length="65536"
-     name="credits_editor"
-     top="25"
-     width="458"
-     word_wrap="true">
-This is line 4
-    </text_editor>
+ width="1024">
+  <panel filename="main_view.xml" follows="all" width="1024" height="768" top="0"/>
 </floater>
diff --git a/indra/newview/skins/default/xui/en/main_view.xml b/indra/newview/skins/default/xui/en/main_view.xml
new file mode 100644
index 0000000000..08f7ee456e
--- /dev/null
+++ b/indra/newview/skins/default/xui/en/main_view.xml
@@ -0,0 +1,159 @@
+<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
+<panel
+ follows="left|right|top|bottom"
+ height="768"
+ layout="topleft"
+ left="0"
+ mouse_opaque="false"
+ name="main_view"
+ width="1024">
+  <layout_stack border_size="0"
+                follows="all"
+                mouse_opaque="false"
+                height="772"
+                name="menu_stack"
+                orientation="vertical"
+                top="0">
+    <layout_panel auto_resize="false"
+                  min_height="19"
+                  mouse_opaque="false"
+                  name="status_bar_container"
+                  height="19"
+                  width="1024"
+                  visible="false"/>
+    <layout_panel auto_resize="false"
+                  height="65"
+                  mouse_opaque="false"
+                  name="nav_bar_container"
+                  width="1024"
+                  visible="false"/>
+    <panel        auto_resize="true"
+                  follows="all"
+                  height="500"
+                  layout="topleft"
+                  mouse_opaque="false"
+                  name="hud"
+                  width="1024">
+      <layout_stack border_size="0"
+                    follows="all"
+                    height="500"
+                    left="0"
+                    mouse_opaque="false"
+                    name="hud_stack"
+                    orientation="horizontal"
+                    top="0"
+                    width="1024">
+        <panel auto_resize="true"
+               follows="all"
+               height="500"
+               layout="topleft"
+               mouse_opaque="false"
+               name="main_view"
+               user_resize="true"
+               width="500">
+          <layout_stack border_size="0"
+                        bottom="500"
+                        follows="all"
+                        height="500"
+                        left="0"
+                        mouse_opaque="false"
+                        name="world_stack"
+                        orientation="vertical">
+            <panel auto_resize="true"
+                   follows="all"
+                   height="500"
+                   layout="topleft"
+                   mouse_opaque="false"
+                   name="hud container"
+                   width="500">
+              <view bottom="500"
+                    follows="all"
+                    height="500"
+                    left="0"
+                    mouse_opaque="false"
+                    name="world_view_rect"
+                    width="500"/>
+              <panel follows="right|top|bottom"
+                     height="500"
+                     mouse_opaque="false"
+                     name="side_bar_tabs"
+                     right="500"
+                     top="0"
+                     width="32"/>
+              <panel bottom="500"
+                     follows="left|right|bottom"
+                     height="25"
+                     left="0"
+                     mouse_opaque="false"
+                     name="stand_stop_flying_container"
+                     visible="false"
+                     width="500"/>
+            </panel>
+            <layout_panel auto_resize="false"
+                   follows="all"
+                   min_height="33"
+                   mouse_opaque="false"
+                   name="bottom_tray_container"
+                   visible="false"/>
+          </layout_stack>
+        </panel>
+        <!-- side tray -->
+        <layout_panel auto_resize="false"
+                      follows="all"
+                      height="500"
+                      min_width="333"
+                      mouse_opaque="false"
+                      name="side_tray_container"
+                      user_resize="true"
+                      visible="false"
+                      width="333"/>
+      </layout_stack>
+      <floater_view follows="all"
+                    height="500"
+                    left="0"
+                    mouse_opaque="false"
+                    name="Floater View"
+                    tab_group="-1"
+                    tab_stop="false"
+                    top="0"
+                    width="1024"/>
+      <debug_view follows="all"
+                  left="0"
+                  top="0"
+                  mouse_opaque="false"
+                  height="500"
+                  name="DebugView"
+                  width="1024"/>
+  </panel>
+  </layout_stack>
+  <notify_box_view top="0"
+                   follows="all"
+                   height="768"
+                   mouse_opaque="false"
+                   name="notify_container"
+                   tab_group="-2"
+                   width="1024"/>
+  <menu_holder top="0"
+               follows="all"
+               height="768"
+               mouse_opaque="false"
+               name="Menu Holder"
+               width="1024"/>
+  <snapshot_floater_view enabled="false"
+                         follows="all"
+                         height="768"
+                         left="0"
+                         mouse_opaque="false"
+                         name="Snapshot Floater View"
+                         tab_stop="false"
+                         top="0"
+                         visible="false"
+                         width="1024"/>
+  <tooltip_view top="0"
+                follows="all"
+                height="768"
+                mouse_opaque="false"
+                name="tooltip view"
+                tab_group="-2"
+                width="1024"/>
+</panel>
diff --git a/indra/newview/skins/default/xui/en/panel_bottomtray.xml b/indra/newview/skins/default/xui/en/panel_bottomtray.xml
index c5e129cf2f..3fbc8e1afd 100644
--- a/indra/newview/skins/default/xui/en/panel_bottomtray.xml
+++ b/indra/newview/skins/default/xui/en/panel_bottomtray.xml
@@ -31,6 +31,7 @@
          height="10"
          image_name="spacer24.tga"
          layout="topleft"
+         min_width="4"
          left="0"
          top="0"
          width="4" />
@@ -44,7 +45,7 @@
          min_height="23"
          width="310"
          top="0"
-         min_width="300"
+         min_width="310"
          name="chat_bar"
          user_resize="false"
          filename="panel_nearby_chat_bar.xml" />
@@ -55,34 +56,35 @@
          height="28"
          layout="topleft"
          min_height="28"
-         width="100"
+         width="104"
          top_delta="0"
-         min_width="96"
+         min_width="104"
          name="speak_panel"
          user_resize="false">
-         <talk_button
-          follows="right"
-          height="23"
-          speak_button.tab_stop="true"
-          show_button.tab_stop="true"
-          layout="topleft"
-          left="0"
-          name="talk"
-          top="3"
+          <talk_button
+           follows="right"
+           height="23"
+           speak_button.tab_stop="true"
+           show_button.tab_stop="true"
+           layout="topleft"
+           left="0"
+           name="talk"
+           top="3"
           width="100"
           speak_button.tool_tip="Turns microphone on/off"
           show_button.tool_tip="Shows/hides voice control panel" />
         </layout_panel>
-		 <icon
-         auto_resize="false"
-         follows="left|right"
-         height="10"
-         image_name="spacer24.tga"
-         layout="topleft"
-         left="0"
-         name="DUMMY"
-         top="0"
-         width="4"/>
+        <icon
+            auto_resize="false"
+            follows="left|right"
+            height="10"
+            image_name="spacer24.tga"
+            layout="topleft"
+            left="0"
+            name="DUMMY"
+            min_width="4"
+            top="0"
+            width="4"/>
         <layout_panel
          mouse_opaque="false"
          auto_resize="false"
@@ -115,6 +117,7 @@
          image_name="spacer24.tga"
          layout="topleft"
          left="0"
+         min_width="4" 
          name="DUMMY"
          top="0"
          width="4"/>
@@ -152,6 +155,7 @@
          image_name="spacer24.tga"
          layout="topleft"
          left="0"
+         min_width="4" 
          name="DUMMY"
          top="0"
          width="4"/>
@@ -191,6 +195,7 @@
          image_name="spacer24.tga"
          layout="topleft"
          left="0"
+         min_width="4" 
          name="DUMMY"
          top="0"
          width="4"/>
@@ -246,6 +251,7 @@
          image_name="spacer24.tga"
          layout="topleft"
          left="0"
+         min_width="4" 
          top="0"
          width="5"/>
         <layout_panel
@@ -291,6 +297,7 @@
          height="10"
          image_name="spacer24.tga"
          layout="topleft"
+         min_width="4" 
          right="-1"
          top="0"
          width="26"/>
diff --git a/indra/newview/skins/default/xui/en/panel_stand_stop_flying.xml b/indra/newview/skins/default/xui/en/panel_stand_stop_flying.xml
index c8703aa895..b48943c699 100644
--- a/indra/newview/skins/default/xui/en/panel_stand_stop_flying.xml
+++ b/indra/newview/skins/default/xui/en/panel_stand_stop_flying.xml
@@ -5,7 +5,7 @@
  layout="topleft"
  name="panel_stand_stop_flying"
  mouse_opaque="false"
- visible="false"
+ visible="true"
  width="115">
     <button
      follows="left|bottom"
diff --git a/indra/newview/skins/default/xui/en/panel_status_bar.xml b/indra/newview/skins/default/xui/en/panel_status_bar.xml
index 7b9c9f47a2..1171a8f0b5 100644
--- a/indra/newview/skins/default/xui/en/panel_status_bar.xml
+++ b/indra/newview/skins/default/xui/en/panel_status_bar.xml
@@ -3,7 +3,7 @@
  background_opaque="true"
  background_visible="true"
  bg_opaque_color="MouseGray"
- follows="top|left|right"
+ follows="all"
  height="19"
  layout="topleft"
  left="0"
diff --git a/indra/newview/skins/default/xui/en/widgets/context_menu.xml b/indra/newview/skins/default/xui/en/widgets/context_menu.xml
new file mode 100644
index 0000000000..459706c689
--- /dev/null
+++ b/indra/newview/skins/default/xui/en/widgets/context_menu.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
+<context_menu visible="false"/>
diff --git a/indra/newview/skins/default/xui/en/widgets/scroll_column_header.xml b/indra/newview/skins/default/xui/en/widgets/scroll_column_header.xml
new file mode 100644
index 0000000000..0794b49a0c
--- /dev/null
+++ b/indra/newview/skins/default/xui/en/widgets/scroll_column_header.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
+<scroll_column_header image_unselected="square_btn_32x128.tga"
+                      image_selected="square_btn_selected_32x128.tga"
+                      image_disabled="square_btn_32x128.tga"
+                      image_disabled_selected="square_btn_selected_32x128.tga"
+                      image_overlay="combobox_arrow.tga"
+                      image_overlay_alignment="right"
+                      halign="left"
+                      scale_image="true"/>
diff --git a/indra/newview/skins/default/xui/en/widgets/side_tray.xml b/indra/newview/skins/default/xui/en/widgets/side_tray.xml
index 8b4a5afbe9..022564c12f 100644
--- a/indra/newview/skins/default/xui/en/widgets/side_tray.xml
+++ b/indra/newview/skins/default/xui/en/widgets/side_tray.xml
@@ -1,8 +1,7 @@
 <?xml version="1.0" encoding="utf-8" standalone="yes" ?>
 <side_tray tab_btn_image="TaskPanel_Tab_Off"
-        tab_btn_image_selected="TaskPanel_Tab_Selected"
-		tab_btn_width="32"
-		tab_btn_height="40"
-		tab_btn_margin="1"
-        >
+           tab_btn_image_selected="TaskPanel_Tab_Selected"
+           tab_btn_width="32"
+           tab_btn_height="40"
+           tab_btn_margin="1">
 </side_tray>
diff --git a/indra/newview/skins/default/xui/en/widgets/toggleable_menu.xml b/indra/newview/skins/default/xui/en/widgets/toggleable_menu.xml
new file mode 100644
index 0000000000..48950a98ad
--- /dev/null
+++ b/indra/newview/skins/default/xui/en/widgets/toggleable_menu.xml
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
+<toggleable_menu visible="false"/>