Pull merge from lindenlab/viewer-chui

25 files changed, 632 insertions, 314 deletions

diff --git a/indra/llui/llfloater.cpp b/indra/llui/llfloater.cpp
index 09e27a264a..d97569839a 100644
--- a/indra/llui/llfloater.cpp
+++ b/indra/llui/llfloater.cpp
@@ -507,22 +507,11 @@ LLFloater::~LLFloater()
 {
 	LLFloaterReg::removeInstance(mInstanceName, mKey);
 	
-//	delete mNotificationContext;
-//	mNotificationContext = NULL;
-
-	//// am I not hosted by another floater?
-	//if (mHostHandle.isDead())
-	//{
-	//	LLFloaterView* parent = (LLFloaterView*) getParent();
-
-	//	if( parent )
-	//	{
-	//		parent->removeChild( this );
-	//	}
-	//}
-
-	// Just in case we might still have focus here, release it.
-	releaseFocus();
+	if( gFocusMgr.childHasKeyboardFocus(this))
+	{
+		// Just in case we might still have focus here, release it.
+		releaseFocus();
+	}
 
 	// This is important so that floaters with persistent rects (i.e., those
 	// created with rect control rather than an LLRect) are restored in their
@@ -2788,7 +2777,7 @@ void LLFloaterView::adjustToFitScreen(LLFloater* floater, BOOL allow_partial_out
 	}
 
 	// move window fully onscreen
-	if (floater->translateIntoRect( getSnapRect(), allow_partial_outside ? FLOATER_MIN_VISIBLE_PIXELS : S32_MAX ))
+	if (floater->translateIntoRect( gFloaterView->getRect(), allow_partial_outside ? FLOATER_MIN_VISIBLE_PIXELS : S32_MAX ))
 	{
 		floater->clearSnapTarget();
 	}
@@ -3258,6 +3247,11 @@ bool LLFloater::isShown() const
     return ! isMinimized() && isInVisibleChain();
 }
 
+bool LLFloater::isDetachedAndNotMinimized()
+{
+	return !getHost() && !isMinimized();
+}
+
 /* static */
 bool LLFloater::isShown(const LLFloater* floater)
 {
diff --git a/indra/llui/llfloater.h b/indra/llui/llfloater.h
index 4dba1e645f..26ac4a98ad 100644
--- a/indra/llui/llfloater.h
+++ b/indra/llui/llfloater.h
@@ -238,6 +238,7 @@ public:
 	void			center();
 
 	LLMultiFloater* getHost();
+	bool isDetachedAndNotMinimized();
 
 	void			applyTitle();
 	std::string		getCurrentTitle() const;
diff --git a/indra/llui/lllayoutstack.cpp b/indra/llui/lllayoutstack.cpp
index e642883991..c89c0203b4 100644
--- a/indra/llui/lllayoutstack.cpp
+++ b/indra/llui/lllayoutstack.cpp
@@ -214,8 +214,15 @@ LLLayoutStack::Params::Params()
 	open_time_constant("open_time_constant", 0.02f),
 	close_time_constant("close_time_constant", 0.03f),
 	resize_bar_overlap("resize_bar_overlap", 1),
-	border_size("border_size", LLCachedControl<S32>(*LLUI::sSettingGroups["config"], "UIResizeBarHeight", 0))
-{}
+	border_size("border_size", LLCachedControl<S32>(*LLUI::sSettingGroups["config"], "UIResizeBarHeight", 0)),
+	show_drag_handle("show_drag_handle", false),
+	drag_handle_first_indent("drag_handle_first_indent", 0),
+	drag_handle_second_indent("drag_handle_second_indent", 0),
+	drag_handle_thickness("drag_handle_thickness", 5),
+	drag_handle_shift("drag_handle_shift", 2)
+{
+	addSynonym(border_size, "drag_handle_gap");
+}
 
 LLLayoutStack::LLLayoutStack(const LLLayoutStack::Params& p) 
 :	LLView(p),
@@ -227,8 +234,14 @@ LLLayoutStack::LLLayoutStack(const LLLayoutStack::Params& p)
 	mClip(p.clip),
 	mOpenTimeConstant(p.open_time_constant),
 	mCloseTimeConstant(p.close_time_constant),
-	mResizeBarOverlap(p.resize_bar_overlap)
-{}
+	mResizeBarOverlap(p.resize_bar_overlap),
+	mShowDragHandle(p.show_drag_handle),
+	mDragHandleFirstIndent(p.drag_handle_first_indent),
+	mDragHandleSecondIndent(p.drag_handle_second_indent),
+	mDragHandleThickness(p.drag_handle_thickness),
+	mDragHandleShift(p.drag_handle_shift)
+{
+}
 
 LLLayoutStack::~LLLayoutStack()
 {
@@ -262,6 +275,26 @@ void LLLayoutStack::draw()
 			drawChild(panelp, 0, 0, !clip_rect.isEmpty());
 		}
 	}
+
+	const LLView::child_list_t * child_listp = getChildList();
+	BOOST_FOREACH(LLView * childp, * child_listp)
+	{
+		LLResizeBar * resize_barp = dynamic_cast<LLResizeBar*>(childp);
+		if (resize_barp && resize_barp->isShowDragHandle() && resize_barp->getVisible() && resize_barp->getRect().isValid())
+		{
+			LLRect screen_rect = resize_barp->calcScreenRect();
+			if (LLUI::getRootView()->getLocalRect().overlaps(screen_rect) && LLUI::sDirtyRect.overlaps(screen_rect))
+			{
+				LLUI::pushMatrix();
+				{
+					const LLRect& rb_rect(resize_barp->getRect());
+					LLUI::translate(rb_rect.mLeft, rb_rect.mBottom);
+					resize_barp->draw();
+				}
+				LLUI::popMatrix();
+			}
+		}
+	}
 }
 
 void LLLayoutStack::removeChild(LLView* view)
@@ -390,7 +423,6 @@ void LLLayoutStack::updateLayout()
 	BOOST_FOREACH(LLLayoutPanel* panelp, mPanels)
 	{
 		F32 panel_dim = llmax(panelp->getExpandedMinDim(), panelp->mTargetDim);
-		F32 panel_visible_dim = panelp->getVisibleDim();
 
 		LLRect panel_rect;
 		if (mOrientation == HORIZONTAL)
@@ -407,27 +439,61 @@ void LLLayoutStack::updateLayout()
 										getRect().getWidth(),
 										llround(panel_dim));
 		}
-		panelp->setIgnoreReshape(true);
-		panelp->setShape(panel_rect);
-		panelp->setIgnoreReshape(false);
 
 		LLRect resize_bar_rect(panel_rect);
-
+		LLResizeBar * resize_barp = panelp->getResizeBar();
+		bool show_drag_handle = resize_barp->isShowDragHandle();
 		F32 panel_spacing = (F32)mPanelSpacing * panelp->getVisibleAmount();
+		F32 panel_visible_dim = panelp->getVisibleDim();
+		S32 panel_spacing_round = (S32)(llround(panel_spacing));
+
 		if (mOrientation == HORIZONTAL)
 		{
-			resize_bar_rect.mLeft = panel_rect.mRight - mResizeBarOverlap;
-			resize_bar_rect.mRight = panel_rect.mRight + (S32)(llround(panel_spacing)) + mResizeBarOverlap;
-
 			cur_pos += panel_visible_dim + panel_spacing;
+
+			if (show_drag_handle && panel_spacing_round > mDragHandleThickness)
+			{
+				resize_bar_rect.mLeft = panel_rect.mRight + mDragHandleShift;
+				resize_bar_rect.mRight = resize_bar_rect.mLeft + mDragHandleThickness;
+			}
+			else
+			{
+				resize_bar_rect.mLeft = panel_rect.mRight - mResizeBarOverlap;
+				resize_bar_rect.mRight = panel_rect.mRight + panel_spacing_round + mResizeBarOverlap;
+			}
+
+			if (show_drag_handle)
+			{
+				resize_bar_rect.mBottom += mDragHandleSecondIndent;
+				resize_bar_rect.mTop -= mDragHandleFirstIndent;
+			}
+
 		}
 		else //VERTICAL
 		{
-			resize_bar_rect.mTop = panel_rect.mBottom + mResizeBarOverlap;
-			resize_bar_rect.mBottom = panel_rect.mBottom - (S32)(llround(panel_spacing)) - mResizeBarOverlap;
-
 			cur_pos -= panel_visible_dim + panel_spacing;
+
+			if (show_drag_handle && panel_spacing_round > mDragHandleThickness)
+			{
+				resize_bar_rect.mTop = panel_rect.mBottom - mDragHandleShift;
+				resize_bar_rect.mBottom = resize_bar_rect.mTop - mDragHandleThickness;
+			}
+			else
+			{
+				resize_bar_rect.mTop = panel_rect.mBottom + mResizeBarOverlap;
+				resize_bar_rect.mBottom = panel_rect.mBottom - panel_spacing_round - mResizeBarOverlap;
+			}
+
+			if (show_drag_handle)
+			{
+				resize_bar_rect.mLeft += mDragHandleFirstIndent;
+				resize_bar_rect.mRight -= mDragHandleSecondIndent;
+			}
 		}
+
+		panelp->setIgnoreReshape(true);
+		panelp->setShape(panel_rect);
+		panelp->setIgnoreReshape(false);
 		panelp->mResizeBar->setShape(resize_bar_rect);
 	}
 
@@ -475,15 +541,13 @@ void LLLayoutStack::createResizeBar(LLLayoutPanel* panelp)
 	{
 		if (lp->mResizeBar == NULL)
 		{
-			LLResizeBar::Side side = (mOrientation == HORIZONTAL) ? LLResizeBar::RIGHT : LLResizeBar::BOTTOM;
-			LLRect resize_bar_rect = getRect();
-
 			LLResizeBar::Params resize_params;
 			resize_params.name("resize");
 			resize_params.resizing_view(lp);
 			resize_params.min_size(lp->getRelevantMinDim());
-			resize_params.side(side);
+			resize_params.side((mOrientation == HORIZONTAL) ? LLResizeBar::RIGHT : LLResizeBar::BOTTOM);
 			resize_params.snapping_enabled(false);
+			resize_params.show_drag_handle(mShowDragHandle);
 			LLResizeBar* resize_bar = LLUICtrlFactory::create<LLResizeBar>(resize_params);
 			lp->mResizeBar = resize_bar;
 			LLView::addChild(resize_bar, 0);
@@ -865,3 +929,4 @@ void LLLayoutStack::updateResizeBarLimits()
 		previous_visible_panelp = visible_panelp;
 	}
 }
+
diff --git a/indra/llui/lllayoutstack.h b/indra/llui/lllayoutstack.h
index 02c664f1a0..b570974bd6 100644
--- a/indra/llui/lllayoutstack.h
+++ b/indra/llui/lllayoutstack.h
@@ -62,6 +62,11 @@ public:
 		Optional<F32>			open_time_constant,
 								close_time_constant;
 		Optional<S32>			resize_bar_overlap;
+		Optional<bool>			show_drag_handle;
+		Optional<S32>			drag_handle_first_indent;
+		Optional<S32>			drag_handle_second_indent;
+		Optional<S32>			drag_handle_thickness;
+		Optional<S32>			drag_handle_shift;
 
 		Params();
 	};
@@ -126,6 +131,11 @@ private:
 	F32  mCloseTimeConstant;
 	bool mNeedsLayout;
 	S32  mResizeBarOverlap;
+	bool mShowDragHandle;
+	S32  mDragHandleFirstIndent;
+	S32  mDragHandleSecondIndent;
+	S32  mDragHandleThickness;
+	S32  mDragHandleShift;
 }; // end class LLLayoutStack
 
 
diff --git a/indra/llui/llmenugl.cpp b/indra/llui/llmenugl.cpp
index f7bf39c897..f854e1785d 100644
--- a/indra/llui/llmenugl.cpp
+++ b/indra/llui/llmenugl.cpp
@@ -3146,6 +3146,13 @@ void LLMenuGL::showPopup(LLView* spawning_view, LLMenuGL* menu, S32 x, S32 y)
 	const S32 CURSOR_HEIGHT = 22;		// Approximate "normal" cursor size
 	const S32 CURSOR_WIDTH = 12;
 
+	if (menu->getChildList()->empty())
+	{
+		return;
+	}
+
+	menu->setVisible( TRUE );
+
 	//Do not show menu if all menu items are disabled
 	BOOL item_enabled = false;
 	for (LLView::child_list_t::const_iterator itor = menu->getChildList()->begin();
@@ -3156,8 +3163,9 @@ void LLMenuGL::showPopup(LLView* spawning_view, LLMenuGL* menu, S32 x, S32 y)
 		item_enabled = item_enabled || menu_item->getEnabled();
 	}
 
-	if(menu->getChildList()->empty() || !item_enabled)
+	if(!item_enabled)
 	{
+		menu->setVisible( FALSE );
 		return;
 	}
 
@@ -3173,8 +3181,6 @@ void LLMenuGL::showPopup(LLView* spawning_view, LLMenuGL* menu, S32 x, S32 y)
 		menu->mFirstVisibleItem = NULL;
 	}
 
-	menu->setVisible( TRUE );
-
 	// Fix menu rect if needed.
 	menu->needsArrange();
 	menu->arrangeAndClear();
diff --git a/indra/llui/llresizebar.cpp b/indra/llui/llresizebar.cpp
index 15e56cbfe5..e67b22c977 100644
--- a/indra/llui/llresizebar.cpp
+++ b/indra/llui/llresizebar.cpp
@@ -28,14 +28,53 @@
 
 #include "llresizebar.h"
 
+#include "lllocalcliprect.h"
 #include "llmath.h"
 #include "llui.h"
 #include "llmenugl.h"
 #include "llfocusmgr.h"
 #include "llwindow.h"
 
+class LLImagePanel : public LLPanel
+{
+public:
+	struct Params :	public LLInitParam::Block<Params, LLPanel::Params>
+	{
+		Optional<bool> horizontal;
+		Params() : horizontal("horizontal", false) {}
+	};
+	LLImagePanel(const Params& p) : LLPanel(p), mHorizontal(p.horizontal) {}
+	virtual ~LLImagePanel() {}
+
+	void draw()
+	{
+		const LLRect& parent_rect = getParent()->getRect();
+		const LLRect& rect = getRect();
+		LLRect clip_rect( -rect.mLeft, parent_rect.getHeight() - rect.mBottom - 2
+						 , parent_rect.getWidth() - rect.mLeft - (mHorizontal ? 2 : 0), -rect.mBottom);
+		LLLocalClipRect clip(clip_rect);
+		LLPanel::draw();
+	}
+
+private:
+	bool mHorizontal;
+};
+
+static LLDefaultChildRegistry::Register<LLImagePanel> t1("resize_bar_image_panel");
+
+LLResizeBar::Params::Params()
+:	max_size("max_size", S32_MAX),
+	snapping_enabled("snapping_enabled", true),
+	resizing_view("resizing_view"),
+	side("side"),
+	allow_double_click_snapping("allow_double_click_snapping", true),
+	show_drag_handle("show_drag_handle", false)
+{
+	name = "resize_bar";
+}
+
 LLResizeBar::LLResizeBar(const LLResizeBar::Params& p)
-:	LLView(p),
+:	LLPanel(p),
 	mDragLastScreenX( 0 ),
 	mDragLastScreenY( 0 ),
 	mLastMouseScreenX( 0 ),
@@ -46,7 +85,9 @@ LLResizeBar::LLResizeBar(const LLResizeBar::Params& p)
 	mSnappingEnabled(p.snapping_enabled),
 	mAllowDoubleClickSnapping(p.allow_double_click_snapping),
 	mResizingView(p.resizing_view),
-	mResizeListener(NULL)
+	mResizeListener(NULL),
+	mShowDragHandle(p.show_drag_handle),
+	mImagePanel(NULL)
 {
 	setFollowsNone();
 	// set up some generically good follow code.
@@ -75,8 +116,37 @@ LLResizeBar::LLResizeBar(const LLResizeBar::Params& p)
 	default:
 		break;
 	}
+
+	if (mShowDragHandle)
+	{
+		LLViewBorder::Params border_params;
+		border_params.border_thickness = 1;
+		border_params.highlight_light_color = LLUIColorTable::instance().getColor("ResizebarBorderLight");
+		border_params.shadow_dark_color = LLUIColorTable::instance().getColor("ResizebarBorderDark");
+
+		addBorder(border_params);
+		setBorderVisible(TRUE);
+
+		LLImagePanel::Params image_panel;
+		mDragHandleImage = LLUI::getUIImage(LLResizeBar::RIGHT == mSide ? "Vertical Drag Handle" : "Horizontal Drag Handle");
+		image_panel.bg_alpha_image = mDragHandleImage;
+		image_panel.background_visible = true;
+		image_panel.horizontal = (LLResizeBar::BOTTOM == mSide);
+		mImagePanel = LLUICtrlFactory::create<LLImagePanel>(image_panel);
+		setImagePanel(mImagePanel);
+	}
 }
 
+BOOL LLResizeBar::postBuild()
+{
+	if (mShowDragHandle)
+	{
+		setBackgroundVisible(TRUE);
+		setTransparentColor(LLUIColorTable::instance().getColor("ResizebarBody"));
+	}
+
+	return LLPanel::postBuild();
+}
 
 BOOL LLResizeBar::handleMouseDown(S32 x, S32 y, MASK mask)
 {
@@ -342,3 +412,39 @@ BOOL LLResizeBar::handleDoubleClick(S32 x, S32 y, MASK mask)
 	return TRUE;
 }
 
+void LLResizeBar::setImagePanel(LLPanel * panelp)
+{
+	const LLView::child_list_t * children = getChildList();
+	if (getChildCount() == 2)
+	{
+		LLPanel * image_panelp = dynamic_cast<LLPanel*>(children->back());
+		if (image_panelp)
+		{
+			removeChild(image_panelp);
+			delete image_panelp;
+		}
+	}
+
+	addChild(panelp);
+	sendChildToBack(panelp);
+}
+
+LLPanel * LLResizeBar::getImagePanel() const
+{
+	return getChildCount() > 0 ? (LLPanel *)getChildList()->back() : NULL;
+}
+
+void LLResizeBar::draw()
+{
+	if (mShowDragHandle)
+	{
+		S32 image_width = mDragHandleImage->getTextureWidth();
+		S32 image_height = mDragHandleImage->getTextureHeight();
+		const LLRect& panel_rect = getRect();
+		S32 image_left = (panel_rect.getWidth() - image_width) / 2 - 1;
+		S32 image_bottom = (panel_rect.getHeight() - image_height) / 2;
+		mImagePanel->setRect(LLRect(image_left, image_bottom + image_height, image_left + image_width, image_bottom));
+	}
+
+	LLPanel::draw();
+}
diff --git a/indra/llui/llresizebar.h b/indra/llui/llresizebar.h
index 8190a95a71..bcf8ea0b40 100644
--- a/indra/llui/llresizebar.h
+++ b/indra/llui/llresizebar.h
@@ -27,15 +27,14 @@
 #ifndef LL_RESIZEBAR_H
 #define LL_RESIZEBAR_H
 
-#include "llview.h"
-#include "llcoord.h"
+#include "llpanel.h"
 
-class LLResizeBar : public LLView
+class LLResizeBar : public LLPanel
 {
 public:
 	enum Side { LEFT, TOP, RIGHT, BOTTOM };
 
-	struct Params : public LLInitParam::Block<Params, LLView::Params>
+	struct Params : public LLInitParam::Block<Params, LLPanel::Params>
 	{
 		Mandatory<LLView*> resizing_view;
 		Mandatory<Side>	side;
@@ -44,24 +43,19 @@ public:
 		Optional<S32>	max_size;
 		Optional<bool>	snapping_enabled;
 		Optional<bool>	allow_double_click_snapping;
+		Optional<bool>	show_drag_handle;
 
-		Params()
-		:	max_size("max_size", S32_MAX),
-			snapping_enabled("snapping_enabled", true),
-			resizing_view("resizing_view"),
-			side("side"),
-			allow_double_click_snapping("allow_double_click_snapping", true)
-		{
-			name = "resize_bar";
-		}
+		Params();
 	};
 
 protected:
 	LLResizeBar(const LLResizeBar::Params& p);
 	friend class LLUICtrlFactory;
+
+	/*virtual*/ BOOL postBuild();
 public:
 
-//	virtual void	draw();  No appearance
+	virtual void	draw();
 	virtual BOOL	handleHover(S32 x, S32 y, MASK mask);
 	virtual BOOL	handleMouseDown(S32 x, S32 y, MASK mask);
 	virtual BOOL	handleMouseUp(S32 x, S32 y, MASK mask);
@@ -72,20 +66,26 @@ public:
 	void			setAllowDoubleClickSnapping(BOOL allow) { mAllowDoubleClickSnapping = allow; }
 	bool			canResize() { return getEnabled() && mMaxSize > mMinSize; }
 	void            setResizeListener(boost::function<void(void*)> listener) {mResizeListener = listener;}
+	BOOL			isShowDragHandle() const { return mShowDragHandle; }
+	void			setImagePanel(LLPanel * panelp);
+	LLPanel *		getImagePanel() const;
 
 private:
-	S32				mDragLastScreenX;
-	S32				mDragLastScreenY;
-	S32				mLastMouseScreenX;
-	S32				mLastMouseScreenY;
-	LLCoordGL		mLastMouseDir;
-	S32				mMinSize;
-	S32				mMaxSize;
-	const Side		mSide;
-	BOOL			mSnappingEnabled;
-	BOOL			mAllowDoubleClickSnapping;
-	LLView*			mResizingView;
-	boost::function<void(void*)>  mResizeListener;
+	S32								mDragLastScreenX;
+	S32								mDragLastScreenY;
+	S32								mLastMouseScreenX;
+	S32								mLastMouseScreenY;
+	LLCoordGL						mLastMouseDir;
+	S32								mMinSize;
+	S32								mMaxSize;
+	const Side						mSide;
+	BOOL							mSnappingEnabled;
+	BOOL							mAllowDoubleClickSnapping;
+	BOOL							mShowDragHandle;
+	LLView*							mResizingView;
+	boost::function<void(void*)>	mResizeListener;
+	LLPointer<LLUIImage>			mDragHandleImage;
+	LLPanel *						mImagePanel;
 };
 
 #endif  // LL_RESIZEBAR_H
diff --git a/indra/llui/lltextbase.cpp b/indra/llui/lltextbase.cpp
index a815cfc176..def1277ba7 100644
--- a/indra/llui/lltextbase.cpp
+++ b/indra/llui/lltextbase.cpp
@@ -652,6 +652,10 @@ void LLTextBase::drawText()
 			mSpellCheckEnd = end;
 		}
 	}
+	else
+	{
+		mMisspellRanges.clear();
+	}
 
 	LLTextSegmentPtr cur_segment = *seg_iter;
 
diff --git a/indra/newview/llagent.cpp b/indra/newview/llagent.cpp
index 094d502078..e0ab70bac7 100755
--- a/indra/newview/llagent.cpp
+++ b/indra/newview/llagent.cpp
@@ -45,6 +45,7 @@
 #include "llenvmanager.h"
 #include "llfirstuse.h"
 #include "llfloatercamera.h"
+#include "llfloaterimcontainer.h"
 #include "llfloaterreg.h"
 #include "llfloatertools.h"
 #include "llgroupactions.h"
@@ -90,6 +91,7 @@
 #include "llworld.h"
 #include "llworldmap.h"
 #include "stringize.h"
+#include "boost/foreach.hpp"
 
 using namespace LLVOAvatarDefines;
 
@@ -2002,7 +2004,16 @@ void LLAgent::endAnimationUpdateUI()
 			{
 				skip_list.insert(LLFloaterReg::findInstance("mini_map"));
 			}
-		
+
+			LLFloaterIMContainer* im_box = LLFloaterReg::getTypedInstance<LLFloaterIMContainer>("im_container");
+			LLFloaterIMContainer::floater_list_t conversations;
+			im_box->getDetachedConversationFloaters(conversations);
+			BOOST_FOREACH(LLFloater* conversation, conversations)
+			{
+				llinfos << "skip_list.insert(session_floater): " << conversation->getTitle() << llendl;
+				skip_list.insert(conversation);
+			}
+
 			gFloaterView->popVisibleAll(skip_list);
 #endif
 			mViewsPushed = FALSE;
diff --git a/indra/newview/llconversationview.cpp b/indra/newview/llconversationview.cpp
index b6c53e5e30..42104ea20a 100755
--- a/indra/newview/llconversationview.cpp
+++ b/indra/newview/llconversationview.cpp
@@ -118,6 +118,13 @@ void LLConversationViewSession::setFlashState(bool flash_state)
 	mFlashTimer->stopFlashing();
 }
 
+void LLConversationViewSession::setHighlightState(bool hihglight_state)
+{
+	mFlashStateOn = hihglight_state;
+	mFlashStarted = true;
+	mFlashTimer->stopFlashing();
+}
+
 void LLConversationViewSession::startFlashing()
 {
 	if (isInVisibleChain() && mFlashStateOn && !mFlashStarted)
@@ -340,16 +347,20 @@ void LLConversationViewSession::setVisibleIfDetached(BOOL visible)
 {
 	// Do this only if the conversation floater has been torn off (i.e. no multi floater host) and is not minimized
 	// Note: minimized dockable floaters are brought to front hence unminimized when made visible and we don't want that here
-	LLFolderViewModelItem* item = mViewModelItem;
-	LLUUID session_uuid = dynamic_cast<LLConversationItem*>(item)->getUUID();
-	LLFloater* session_floater = LLFloaterIMSessionTab::getConversation(session_uuid);
-	
-	if (session_floater && !session_floater->getHost() && !session_floater->isMinimized())
+	LLFloater* session_floater = getSessionFloater();
+	if (session_floater && session_floater->isDetachedAndNotMinimized())
 	{
 		session_floater->setVisible(visible);
 	}
 }
 
+LLFloater* LLConversationViewSession::getSessionFloater()
+{
+	LLFolderViewModelItem* item = mViewModelItem;
+	LLUUID session_uuid = dynamic_cast<LLConversationItem*>(item)->getUUID();
+	return LLFloaterIMSessionTab::getConversation(session_uuid);
+}
+
 LLConversationViewParticipant* LLConversationViewSession::findParticipant(const LLUUID& participant_id)
 {
 	// This is *not* a general tree parsing algorithm. We search only in the mItems list
diff --git a/indra/newview/llconversationview.h b/indra/newview/llconversationview.h
index 3eb2e63792..879d496dc7 100755
--- a/indra/newview/llconversationview.h
+++ b/indra/newview/llconversationview.h
@@ -86,6 +86,9 @@ public:
 	virtual void refresh();
 
 	/*virtual*/ void setFlashState(bool flash_state);
+	void setHighlightState(bool hihglight_state);
+
+	LLFloater* getSessionFloater();
 
 private:
 
diff --git a/indra/newview/lldonotdisturbnotificationstorage.cpp b/indra/newview/lldonotdisturbnotificationstorage.cpp
index 82affcf068..b9e3b60240 100644
--- a/indra/newview/lldonotdisturbnotificationstorage.cpp
+++ b/indra/newview/lldonotdisturbnotificationstorage.cpp
@@ -210,12 +210,8 @@ void LLDoNotDisturbNotificationStorage::loadNotifications()
 
 	}
 
-    if(imToastExists)
-    {
-        LLFloaterReg::showInstance("im_container");
-    }
-
-	if(group_ad_hoc_toast_exists)
+    bool isConversationLoggingAllowed = gSavedPerAccountSettings.getS32("KeepConversationLogTranscripts") > 0;
+	if(group_ad_hoc_toast_exists && isConversationLoggingAllowed)
 	{
 		LLFloaterReg::showInstance("conversation");
 	}
@@ -266,11 +262,6 @@ void LLDoNotDisturbNotificationStorage::updateNotifications()
         }
     }
 
-    if(imToastExists)
-    {   
-        LLFloaterReg::showInstance("im_container");
-    }
-
     if(imToastExists || offerExists)
     {
         make_ui_sound("UISndNewIncomingIMSession");
diff --git a/indra/newview/llfloaterimcontainer.cpp b/indra/newview/llfloaterimcontainer.cpp
index 17efeb2ffd..6a6b48cfb1 100644
--- a/indra/newview/llfloaterimcontainer.cpp
+++ b/indra/newview/llfloaterimcontainer.cpp
@@ -54,6 +54,7 @@
 #include "llworld.h"
 #include "llsdserialize.h"
 #include "llviewerobjectlist.h"
+#include "boost/foreach.hpp"
 
 //
 // LLFloaterIMContainer
@@ -63,7 +64,8 @@ LLFloaterIMContainer::LLFloaterIMContainer(const LLSD& seed, const Params& param
 	mExpandCollapseBtn(NULL),
 	mConversationsRoot(NULL),
 	mConversationsEventStream("ConversationsEvents"),
-	mInitialized(false)
+	mInitialized(false),
+	mIsFirstLaunch(true)
 {
     mEnableCallbackRegistrar.add("IMFloaterContainer.Check", boost::bind(&LLFloaterIMContainer::isActionChecked, this, _2));
 	mCommitCallbackRegistrar.add("IMFloaterContainer.Action", boost::bind(&LLFloaterIMContainer::onCustomAction,  this, _2));
@@ -660,10 +662,32 @@ void LLFloaterIMContainer::setVisible(BOOL visible)
 	LLMultiFloater::setVisible(visible);
 }
 
+void LLFloaterIMContainer::getDetachedConversationFloaters(floater_list_t& floaters)
+{
+	typedef conversations_widgets_map::value_type conv_pair;
+	BOOST_FOREACH(conv_pair item, mConversationsWidgets)
+	{
+		LLConversationViewSession* widget = dynamic_cast<LLConversationViewSession*>(item.second);
+		if (widget)
+		{
+			LLFloater* session_floater = widget->getSessionFloater();
+			if (session_floater && session_floater->isDetachedAndNotMinimized())
+			{
+				floaters.push_back(session_floater);
+			}
+		}
+	}
+}
+
 void LLFloaterIMContainer::setVisibleAndFrontmost(BOOL take_focus, const LLSD& key)
 {
 	LLMultiFloater::setVisibleAndFrontmost(take_focus, key);
     selectConversationPair(getSelectedSession(), false, take_focus);
+	if (mInitialized && mIsFirstLaunch)
+	{
+		collapseMessagesPane(gSavedPerAccountSettings.getBOOL("ConversationsMessagePaneCollapsed"));
+		mIsFirstLaunch = false;
+	}
 }
 
 void LLFloaterIMContainer::updateResizeLimits()
@@ -794,15 +818,12 @@ void LLFloaterIMContainer::assignResizeLimits()
 	bool is_conv_pane_expanded = !mConversationsPane->isCollapsed();
 	bool is_msg_pane_expanded = !mMessagesPane->isCollapsed();
 
-	// With two panels visible number of borders is three, because the borders
-	// between the panels are merged into one
-    S32 number_of_visible_borders = llmin((is_conv_pane_expanded? 2 : 0) + (is_msg_pane_expanded? 2 : 0), 3);
-    S32 summary_width_of_visible_borders = number_of_visible_borders * LLPANEL_BORDER_WIDTH;
-	S32 conv_pane_target_width = is_conv_pane_expanded?
-			(is_msg_pane_expanded?
-					mConversationsPane->getRect().getWidth()
-					: mConversationsPane->getExpandedMinDim())
-			: mConversationsPane->getMinDim();
+    S32 summary_width_of_visible_borders = (is_msg_pane_expanded ? mConversationsStack->getPanelSpacing() : 0) + 1;
+
+	S32 conv_pane_target_width = is_conv_pane_expanded
+		? ( is_msg_pane_expanded?mConversationsPane->getRect().getWidth():mConversationsPane->getExpandedMinDim() )
+		: mConversationsPane->getMinDim();
+
 	S32 msg_pane_min_width  = is_msg_pane_expanded ? mMessagesPane->getExpandedMinDim() : 0;
 	S32 new_min_width = conv_pane_target_width + msg_pane_min_width + summary_width_of_visible_borders;
 
@@ -1926,6 +1947,17 @@ void LLFloaterIMContainer::flashConversationItemWidget(const LLUUID& session_id,
 	}
 }
 
+void LLFloaterIMContainer::highlightConversationItemWidget(const LLUUID& session_id, bool is_highlighted)
+{
+	//Finds the conversation line item to highlight using the session_id
+	LLConversationViewSession * widget = dynamic_cast<LLConversationViewSession *>(get_ptr_in_map(mConversationsWidgets,session_id));
+
+	if (widget)
+	{
+		widget->setHighlightState(is_highlighted);
+	}
+}
+
 bool LLFloaterIMContainer::isScrolledOutOfSight(LLConversationViewSession* conversation_item_widget)
 {
 	llassert(conversation_item_widget != NULL);
@@ -1941,23 +1973,28 @@ bool LLFloaterIMContainer::isScrolledOutOfSight(LLConversationViewSession* conve
 
 BOOL LLFloaterIMContainer::handleKeyHere(KEY key, MASK mask )
 {
+	BOOL handled = FALSE;
+
 	if(mask == MASK_ALT)
 	{
 		if (KEY_RETURN == key )
 		{
 			expandConversation();
+			handled = TRUE;
 		}
 
 		if ((KEY_DOWN == key ) || (KEY_RIGHT == key))
 		{
 			selectNextorPreviousConversation(true);
+			handled = TRUE;
 		}
 		if ((KEY_UP == key) || (KEY_LEFT == key))
 		{
 			selectNextorPreviousConversation(false);
+			handled = TRUE;
 		}
 	}
-	return TRUE;
+	return handled;
 }
 
 bool LLFloaterIMContainer::selectAdjacentConversation(bool focus_selected)
@@ -2014,7 +2051,9 @@ void LLFloaterIMContainer::expandConversation()
 	}
 }
 
-void LLFloaterIMContainer::closeFloater(bool app_quitting/* = false*/)
+// For conversations, closeFloater() (linked to Ctrl-W) does not actually close the floater but the active conversation.
+// This is intentional so it doesn't confuse the user. onClickCloseBtn() closes the whole floater.
+void LLFloaterIMContainer::onClickCloseBtn()
 {
 	// Always unminimize before trying to close.
 	// Most of the time the user will never see this state.
@@ -2023,7 +2062,25 @@ void LLFloaterIMContainer::closeFloater(bool app_quitting/* = false*/)
 		LLMultiFloater::setMinimized(FALSE);
 	}
 	
-	LLFloater::closeFloater(app_quitting);
+	LLFloater::closeFloater();
+}
+
+void LLFloaterIMContainer::closeFloater(bool app_quitting/* = false*/)
+{
+	// Check for currently active session
+	LLUUID session_id = getSelectedSession();
+	// If current session is Nearby Chat or there is only one session remaining, close the floater
+	if (mConversationsItems.size() == 1 || session_id == LLUUID())
+	{
+		onClickCloseBtn();
+	}
+
+	// Otherwise, close current conversation
+	LLFloaterIMSessionTab* active_conversation = LLFloaterIMSessionTab::getConversation(session_id);
+	if (active_conversation)
+	{
+		active_conversation->closeFloater();
+	}
 }
 
 // EOF
diff --git a/indra/newview/llfloaterimcontainer.h b/indra/newview/llfloaterimcontainer.h
index 2833f1e646..04e27f9b9d 100644
--- a/indra/newview/llfloaterimcontainer.h
+++ b/indra/newview/llfloaterimcontainer.h
@@ -130,6 +130,7 @@ private:
 	void onStubCollapseButtonClicked();
 	void processParticipantsStyleUpdate();
 	void onSpeakButtonClicked();
+	/*virtual*/ void onClickCloseBtn();
 
 	void collapseConversationsPane(bool collapse, bool save_is_allowed=true);
 
@@ -177,6 +178,7 @@ private:
 	LLLayoutStack* mConversationsStack;
 	
 	bool mInitialized;
+	bool mIsFirstLaunch;
 
 	LLUUID mSelectedSession;
 	std::string mGeneralTitle;
@@ -191,9 +193,12 @@ public:
 	void updateSpeakBtnState();
 	static bool isConversationLoggingAllowed();
 	void flashConversationItemWidget(const LLUUID& session_id, bool is_flashes);
+	void highlightConversationItemWidget(const LLUUID& session_id, bool is_highlighted);
 	bool isScrolledOutOfSight(LLConversationViewSession* conversation_item_widget);
 	boost::signals2::connection mMicroChangedSignal;
 	S32 getConversationListItemSize() { return mConversationsWidgets.size(); }
+	typedef std::list<LLFloater*> floater_list_t;
+	void getDetachedConversationFloaters(floater_list_t& floaters);
 
 private:
 	LLConversationViewSession* createConversationItemWidget(LLConversationItem* item);
diff --git a/indra/newview/llfloaterimnearbychat.cpp b/indra/newview/llfloaterimnearbychat.cpp
index 49f36a2f32..7e472466ed 100644
--- a/indra/newview/llfloaterimnearbychat.cpp
+++ b/indra/newview/llfloaterimnearbychat.cpp
@@ -568,7 +568,10 @@ void LLFloaterIMNearbyChat::sendChat( EChatType type )
 			if (0 == channel)
 			{
 				// discard returned "found" boolean
-				LLGestureMgr::instance().triggerAndReviseString(utf8text, &utf8_revised_text);
+				if(!LLGestureMgr::instance().triggerAndReviseString(utf8text, &utf8_revised_text))
+				{
+					utf8_revised_text = utf8text;
+				}
 			}
 			else
 			{
diff --git a/indra/newview/llfloaterimsession.cpp b/indra/newview/llfloaterimsession.cpp
index edc25a7d7e..6ed04f8716 100644
--- a/indra/newview/llfloaterimsession.cpp
+++ b/indra/newview/llfloaterimsession.cpp
@@ -469,7 +469,10 @@ void LLFloaterIMSession::addP2PSessionParticipants(const LLSD& notification, con
 	temp_ids.insert(temp_ids.end(), uuids.begin(), uuids.end());
 
 	// then we can close the current session
-	onClose(false);
+	if(findInstance(mSessionID))
+	{
+		onClose(false);
+	}
 
 	// we start a new session so reset the initialization flag
 	mSessionInitialized = false;
diff --git a/indra/newview/llfloaterimsessiontab.cpp b/indra/newview/llfloaterimsessiontab.cpp
index 3c9cf3321e..08a8d8adf8 100644
--- a/indra/newview/llfloaterimsessiontab.cpp
+++ b/indra/newview/llfloaterimsessiontab.cpp
@@ -212,7 +212,7 @@ void LLFloaterIMSessionTab::assignResizeLimits()
 	mRightPartPanel->setIgnoreReshape(is_participants_pane_collapsed);
 
     S32 participants_pane_target_width = is_participants_pane_collapsed?
-    		0 : (mParticipantListPanel->getRect().getWidth() + LLPANEL_BORDER_WIDTH);
+    		0 : (mParticipantListPanel->getRect().getWidth() + mParticipantListAndHistoryStack->getPanelSpacing());
 
     S32 new_min_width = participants_pane_target_width + mRightPartPanel->getExpandedMinDim() + mFloaterExtraWidth;
 
@@ -1081,21 +1081,26 @@ void LLFloaterIMSessionTab::saveCollapsedState()
 }
 BOOL LLFloaterIMSessionTab::handleKeyHere(KEY key, MASK mask )
 {
+	BOOL handled = FALSE;
+
 	if(mask == MASK_ALT)
 	{
 		LLFloaterIMContainer* floater_container = LLFloaterIMContainer::getInstance();
 		if (KEY_RETURN == key && !isTornOff())
 		{
 			floater_container->expandConversation();
+			handled = TRUE;
 		}
 		if ((KEY_UP == key) || (KEY_LEFT == key))
 		{
 			floater_container->selectNextorPreviousConversation(false);
+			handled = TRUE;
 		}
 		if ((KEY_DOWN == key ) || (KEY_RIGHT == key))
 		{
 			floater_container->selectNextorPreviousConversation(true);
+			handled = TRUE;
 		}
 	}
-	return TRUE;
+	return handled;
 }
diff --git a/indra/newview/llimview.cpp b/indra/newview/llimview.cpp
index afac94af07..9403a1ed14 100644
--- a/indra/newview/llimview.cpp
+++ b/indra/newview/llimview.cpp
@@ -103,6 +103,7 @@ BOOL LLSessionTimeoutTimer::tick()
 }
 
 
+void notify_of_message(const LLSD& msg, bool is_dnd_msg);
 
 void process_dnd_im(const LLSD& notification)
 {
@@ -129,15 +130,9 @@ void process_dnd_im(const LLSD& notification)
             fromID, 
             false, 
             false); //will need slight refactor to retrieve whether offline message or not (assume online for now)
+	}
 
-		LLFloaterIMContainer* im_box = LLFloaterReg::getTypedInstance<LLFloaterIMContainer>("im_container");
-		
-		if (im_box)
-		{
-			im_box->flashConversationItemWidget(sessionID, true);
-		}
-
-    }
+	notify_of_message(data, true);
 }
 
 
@@ -158,87 +153,89 @@ static void on_avatar_name_cache_toast(const LLUUID& agent_id,
 	LLNotificationsUtil::add("IMToast", args, args, boost::bind(&LLFloaterIMContainer::showConversation, LLFloaterIMContainer::getInstance(), msg["session_id"].asUUID()));
 }
 
-void on_new_message(const LLSD& msg)
+void notify_of_message(const LLSD& msg, bool is_dnd_msg)
 {
-    std::string user_preferences;
-    LLUUID participant_id = msg["from_id"].asUUID();
-    LLUUID session_id = msg["session_id"].asUUID();
-    LLIMModel::LLIMSession* session = LLIMModel::instance().findIMSession(session_id);
+	std::string user_preferences;
+	LLUUID participant_id = msg[is_dnd_msg ? "FROM_ID" : "from_id"].asUUID();
+	LLUUID session_id = msg[is_dnd_msg ? "SESSION_ID" : "session_id"].asUUID();
+	LLIMModel::LLIMSession* session = LLIMModel::instance().findIMSession(session_id);
 
-    // do not show notification which goes from agent
-    if (gAgent.getID() == participant_id)
-    {
-        return;
-    }
+	// do not show notification which goes from agent
+	if (gAgent.getID() == participant_id)
+	{
+		return;
+	}
 
-    // determine state of conversations floater
-    enum {CLOSED, NOT_ON_TOP, ON_TOP, ON_TOP_AND_ITEM_IS_SELECTED} conversations_floater_status;
+	// determine state of conversations floater
+	enum {CLOSED, NOT_ON_TOP, ON_TOP, ON_TOP_AND_ITEM_IS_SELECTED} conversations_floater_status;
 
 
-    LLFloaterIMContainer* im_box = LLFloaterReg::getTypedInstance<LLFloaterIMContainer>("im_container");
+	LLFloaterIMContainer* im_box = LLFloaterReg::getTypedInstance<LLFloaterIMContainer>("im_container");
 	LLFloaterIMSessionTab* session_floater = LLFloaterIMSessionTab::getConversation(session_id);
+	bool store_dnd_message = false; // flag storage of a dnd message
 
 	if (!LLFloater::isVisible(im_box) || im_box->isMinimized())
 	{
 		conversations_floater_status = CLOSED;
 	}
 	else if (!im_box->hasFocus() &&
-			    !(session_floater && LLFloater::isVisible(session_floater)
-	            && !session_floater->isMinimized() && session_floater->hasFocus()))
+		!(session_floater && LLFloater::isVisible(session_floater)
+		&& !session_floater->isMinimized() && session_floater->hasFocus()))
 	{
 		conversations_floater_status = NOT_ON_TOP;
 	}
 	else if (im_box->getSelectedSession() != session_id)
 	{
 		conversations_floater_status = ON_TOP;
-    }
+	}
 	else
 	{
 		conversations_floater_status = ON_TOP_AND_ITEM_IS_SELECTED;
 	}
 
-    //  determine user prefs for this session
-    if (session_id.isNull())
-    {
-    	user_preferences = gSavedSettings.getString("NotificationNearbyChatOptions");
-    }
-    else if(session->isP2PSessionType())
-    {
-        if (LLAvatarTracker::instance().isBuddy(participant_id))
-        {
-        	user_preferences = gSavedSettings.getString("NotificationFriendIMOptions");
-        }
-        else
-        {
-        	user_preferences = gSavedSettings.getString("NotificationNonFriendIMOptions");
-        }
-    }
-    else if(session->isAdHocSessionType())
-    {
-    	user_preferences = gSavedSettings.getString("NotificationConferenceIMOptions");
-    }
-    else if(session->isGroupSessionType())
-    {
-    	user_preferences = gSavedSettings.getString("NotificationGroupChatOptions");
-    }
-
-    // actions:
+	//  determine user prefs for this session
+	if (session_id.isNull())
+	{
+		user_preferences = gSavedSettings.getString("NotificationNearbyChatOptions");
+	}
+	else if(session->isP2PSessionType())
+	{
+		if (LLAvatarTracker::instance().isBuddy(participant_id))
+		{
+			user_preferences = gSavedSettings.getString("NotificationFriendIMOptions");
+		}
+		else
+		{
+			user_preferences = gSavedSettings.getString("NotificationNonFriendIMOptions");
+		}
+	}
+	else if(session->isAdHocSessionType())
+	{
+		user_preferences = gSavedSettings.getString("NotificationConferenceIMOptions");
+	}
+	else if(session->isGroupSessionType())
+	{
+		user_preferences = gSavedSettings.getString("NotificationGroupChatOptions");
+	}
 
-    // 0. nothing - exit
-    if (("none" == user_preferences ||
-    		ON_TOP_AND_ITEM_IS_SELECTED == conversations_floater_status)
-    	    && session_floater->isMessagePaneExpanded())
-    {
-    	return;
-    }
+	// actions:
 
-    // 1. open floater and [optional] surface it
-    if ("openconversations" == user_preferences &&
-    		(CLOSED == conversations_floater_status
-    				|| NOT_ON_TOP == conversations_floater_status))
-    {
-    	if(!gAgent.isDoNotDisturb())
-        {
+	// 0. nothing - exit
+	if (("none" == user_preferences ||
+		ON_TOP_AND_ITEM_IS_SELECTED == conversations_floater_status)
+		&& session_floater->isMessagePaneExpanded())
+	{
+		return;
+	}
+	
+	// 1. open floater and [optional] surface it
+	if (("openconversations" == user_preferences &&
+		(CLOSED == conversations_floater_status
+		|| NOT_ON_TOP == conversations_floater_status))
+		|| is_dnd_msg )
+	{
+		if(!gAgent.isDoNotDisturb())
+		{
 			// Open conversations floater
 			LLFloaterReg::showInstance("im_container");
 			im_box->collapseMessagesPane(false);
@@ -260,57 +257,100 @@ void on_new_message(const LLSD& msg)
 				}
 			}
 		}
-        else
-        {
-            //If in DND mode, allow notification to be stored so upon DND exit
-            //useMostItrusiveIMNotification will be called to notify user a message exists
-            if(session_id.notNull()
-               && participant_id.notNull()
-		       && !session_floater->isShown())
-            {
-                LLAvatarNameCache::get(participant_id, boost::bind(&on_avatar_name_cache_toast, _1, _2, msg));
-	        }
-        }
-    }
+		else
+		{
+			store_dnd_message = true;
+		}
 
-    // 2. Flash line item
-    if ("openconversations" == user_preferences
-    		|| ON_TOP == conversations_floater_status
-    		|| ("toast" == user_preferences && ON_TOP != conversations_floater_status)
-    		|| ("flash" == user_preferences && CLOSED == conversations_floater_status))
-    {
-    	if(!LLMuteList::getInstance()->isMuted(participant_id))
-    	{
-    		im_box->flashConversationItemWidget(session_id, true);
-    	}
-    }
+	}
 
-    // 3. Flash FUI button
-    if (("toast" == user_preferences || "flash" == user_preferences) &&
-    		(CLOSED == conversations_floater_status
-    		    || NOT_ON_TOP == conversations_floater_status))
-    {
-    	if(!LLMuteList::getInstance()->isMuted(participant_id)
-            && !gAgent.isDoNotDisturb())
-    	{
-    		gToolBarView->flashCommand(LLCommandId("chat"), true);
-    	}
-    }
+	// 2. Flash line item
+	if ("openconversations" == user_preferences
+		|| ON_TOP == conversations_floater_status
+		|| ("toast" == user_preferences && ON_TOP != conversations_floater_status)
+		|| ("flash" == user_preferences && CLOSED == conversations_floater_status)
+		|| is_dnd_msg)
+	{
+		if(!LLMuteList::getInstance()->isMuted(participant_id))
+		{
+			if(gAgent.isDoNotDisturb())
+			{
+				store_dnd_message = true;
+			}
+			else
+			{
+				if (is_dnd_msg && (ON_TOP == conversations_floater_status || 
+									NOT_ON_TOP == conversations_floater_status || 
+									CLOSED == conversations_floater_status))
+				{
+					im_box->highlightConversationItemWidget(session_id, true);
+				}
+				else
+				{
+					im_box->flashConversationItemWidget(session_id, true);
+				}
+			}
+		}
+	}
+
+	// 3. Flash FUI button
+	if (("toast" == user_preferences || "flash" == user_preferences) &&
+		(CLOSED == conversations_floater_status
+		|| NOT_ON_TOP == conversations_floater_status)
+		&& !is_dnd_msg) //prevent flashing FUI button because the conversation floater will have already opened
+	{
+		if(!LLMuteList::getInstance()->isMuted(participant_id))
+		{
+			if(!gAgent.isDoNotDisturb())
+			{
+				gToolBarView->flashCommand(LLCommandId("chat"), true);
+			}
+			else
+			{
+				store_dnd_message = true;
+			}
+		}
+	}
 
-    // 4. Toast
-    if ((("toast" == user_preferences) &&
-    		(CLOSED == conversations_floater_status
-    		    || NOT_ON_TOP == conversations_floater_status))
-    		    || !session_floater->isMessagePaneExpanded())
+	// 4. Toast
+	if ((("toast" == user_preferences) &&
+		(ON_TOP_AND_ITEM_IS_SELECTED != conversations_floater_status))
+		|| !session_floater->isMessagePaneExpanded())
 
-    {
-        //Show IM toasts (upper right toasts)
-        // Skip toasting for system messages and for nearby chat
-        if(session_id.notNull() && participant_id.notNull())
-        {
-            LLAvatarNameCache::get(participant_id, boost::bind(&on_avatar_name_cache_toast, _1, _2, msg));
-        }
-    }
+	{
+		//Show IM toasts (upper right toasts)
+		// Skip toasting for system messages and for nearby chat
+		if(session_id.notNull() && participant_id.notNull())
+		{
+			if(!is_dnd_msg)
+			{
+				if(gAgent.isDoNotDisturb())
+				{
+					store_dnd_message = true;
+				}
+				else
+				{
+					LLAvatarNameCache::get(participant_id, boost::bind(&on_avatar_name_cache_toast, _1, _2, msg));
+				}
+			}
+		}
+	}
+	if (store_dnd_message)
+	{
+		// If in DND mode, allow notification to be stored so upon DND exit 
+		// the user will be notified with some limitations (see 'is_dnd_msg' flag checks)
+		if(session_id.notNull()
+			&& participant_id.notNull()
+			&& !session_floater->isShown())
+		{
+			LLAvatarNameCache::get(participant_id, boost::bind(&on_avatar_name_cache_toast, _1, _2, msg));
+		}
+	}
+}
+
+void on_new_message(const LLSD& msg)
+{
+	notify_of_message(msg, false);
 }
 
 LLIMModel::LLIMModel() 
diff --git a/indra/newview/llviewerwindow.cpp b/indra/newview/llviewerwindow.cpp
index be508ad17d..45ff75bb34 100755
--- a/indra/newview/llviewerwindow.cpp
+++ b/indra/newview/llviewerwindow.cpp
@@ -1798,6 +1798,7 @@ void LLViewerWindow::initBase()
 
 	// Constrain floaters to inside the menu and status bar regions.
 	gFloaterView = main_view->getChild<LLFloaterView>("Floater View");
+	gFloaterView->setFloaterSnapView(main_view->getChild<LLView>("floater_snap_region")->getHandle());
 	gSnapshotFloaterView = main_view->getChild<LLSnapshotFloaterView>("Snapshot Floater View");
 
 	// Console
diff --git a/indra/newview/skins/default/colors.xml b/indra/newview/skins/default/colors.xml
index 0de217fc0d..ac1289c4b8 100644
--- a/indra/newview/skins/default/colors.xml
+++ b/indra/newview/skins/default/colors.xml
@@ -864,4 +864,19 @@
   <color
     name="blue"
     value="0 0 1 1"/>
+
+  <!--Resize bar colors -->
+
+  <color
+    name="ResizebarBorderLight"
+    value="0.231 0.231 0.231 1"/>
+
+  <color
+    name="ResizebarBorderDark"
+    value="0.133 0.133 0.133 1"/>
+
+  <color
+    name="ResizebarBody"
+    value="0.208 0.208 0.208 1"/>
+    
 </colors>
diff --git a/indra/newview/skins/default/textures/textures.xml b/indra/newview/skins/default/textures/textures.xml
index 93c9cb02cb..d99c3a8bda 100644
--- a/indra/newview/skins/default/textures/textures.xml
+++ b/indra/newview/skins/default/textures/textures.xml
@@ -776,4 +776,7 @@ with the same filename but different name
   <texture name="Popup_Caution" file_name="icons/pop_up_caution.png"/>
   <texture name="Camera_Drag_Dot" file_name="world/CameraDragDot.png"/>
   <texture name="NavBar Separator" file_name="navbar/separator.png"/>
+
+  <texture name="Horizontal Drag Handle" file_name="widgets/horizontal_drag_handle.png"/>
+  <texture name="Vertical Drag Handle" file_name="widgets/vertical_drag_handle.png"/>
 </textures>
diff --git a/indra/newview/skins/default/textures/widgets/horizontal_drag_handle.png b/indra/newview/skins/default/textures/widgets/horizontal_drag_handle.png
new file mode 100644
index 0000000000..642eac4065
--- /dev/null
+++ b/indra/newview/skins/default/textures/widgets/horizontal_drag_handle.png
diff --git a/indra/newview/skins/default/textures/widgets/vertical_drag_handle.png b/indra/newview/skins/default/textures/widgets/vertical_drag_handle.png
new file mode 100644
index 0000000000..b06b70cf36
--- /dev/null
+++ b/indra/newview/skins/default/textures/widgets/vertical_drag_handle.png
diff --git a/indra/newview/skins/default/xui/en/floater_im_container.xml b/indra/newview/skins/default/xui/en/floater_im_container.xml
index 65f623a47e..3e8c6c76cc 100644
--- a/indra/newview/skins/default/xui/en/floater_im_container.xml
+++ b/indra/newview/skins/default/xui/en/floater_im_container.xml
@@ -25,23 +25,27 @@
     <layout_stack
      animate="true" 
      bottom="-1"
+     drag_handle_gap="6"
+     drag_handle_first_indent="27"
+     drag_handle_second_indent="10"
      follows="all"
      layout="topleft"
      left="0"
      name="conversations_stack"
      orientation="horizontal"
      right="-1"
+     show_drag_handle="true"
      top="0">
         <layout_panel
          auto_resize="false"
          user_resize="true"        
          name="conversations_layout_panel"
          min_dim="38"
-         expanded_min_dim="156">
+         expanded_min_dim="136">
             <layout_stack
              animate="false" 
              follows="left|top|right"
-             height="35"
+             height="27"
              layout="topleft"
              left="0"
              name="conversations_pane_buttons_stack"
@@ -50,7 +54,6 @@
              top="0">
                 <layout_panel
                  auto_resize="true"
-                 height="35"
                  name="conversations_pane_buttons_expanded">
                     <menu_button
                      follows="top|left"
@@ -64,7 +67,7 @@
                      left="5"
                      name="sort_btn"
                      tool_tip="View/sort options"
-                     top="5"
+                     top="1"
                      width="31" />
                     <button
                      follows="top|left"
@@ -74,7 +77,7 @@
                      image_selected="Toolbar_Middle_Selected"
                      image_unselected="Toolbar_Middle_Off"
                      layout="topleft"
-                     top="5"
+                     top="1"
                      left_pad="2"
                      name="add_btn"
                      tool_tip="Start a new conversation"
@@ -87,7 +90,7 @@
                      image_selected="Toolbar_Middle_Selected"
                      image_unselected="Toolbar_Middle_Off"
                      layout="topleft"
-                     top="5"
+                     top="1"
                      left_pad="2"
                      name="speak_btn"
                      tool_tip="Speak with people using your microphone"
@@ -95,9 +98,8 @@
                 </layout_panel>
                 <layout_panel
                  auto_resize="false"
-                 height="35"
                  name="conversations_pane_buttons_collapsed"
-                 width="41">
+                 width="31">
                     <button
                      follows="right|top"
                      height="25"
@@ -106,8 +108,8 @@
                      image_selected="Toolbar_Middle_Selected"
                      image_unselected="Toolbar_Middle_Off"
                      layout="topleft"
-                     top="5"
-                     left="1"
+                     top="1"
+                     left="0"
                      name="expand_collapse_btn"
                      tool_tip="Collapse/Expand this list"
                      width="31" />
@@ -119,7 +121,7 @@
              layout="topleft"
              name="conversations_list_panel"
              opaque="true"
-             top="35"
+             top_pad="0"
              left="5"
              right="-1"/>
         </layout_panel>
@@ -127,7 +129,7 @@
          auto_resize="true"
          user_resize="true"
          name="messages_layout_panel"
-         expanded_min_dim="222">
+         expanded_min_dim="232">
             <panel_container
              bottom="-1"
              follows="all"
@@ -136,44 +138,44 @@
              name="im_box_tab_container"
              right="-1"
              top="0">
-             <panel
-               bottom="-1"
-               follows="all"
-               layout="topleft"
-               name="stub_panel"
-               opaque="true"
-               top_pad="0"
-               left="0"
-               right="-1">
-                 <button
-                 follows="right|top"
-                 height="25"
-                 image_hover_unselected="Toolbar_Middle_Over"
-                 image_overlay="Conv_toolbar_collapse"
-                 image_selected="Toolbar_Middle_Selected"
-                 image_unselected="Toolbar_Middle_Off"
+                <panel
+                 bottom="-1"
+                 follows="all"
                  layout="topleft"
-                 top="5"
-                 right="-10"
-                 name="stub_collapse_btn"
-                 tool_tip="Collapse this pane"
-                 width="31" />
-                 <text
-                   type="string"
-                   clip_partial="false"
-                   follows="left|top|right"
-                   layout="topleft"
-                   left="15"
-                   right="-15"
-                   name="stub_textbox"
-                   top="25"
-                   height="40"
-                   valign="center"
-                   parse_urls="true"
-                   wrap="true">
-                   This conversation is in a separate window.   [secondlife:/// Bring it back.]
-                 </text>
-             </panel>
+                 name="stub_panel"
+                 opaque="true"
+                 top_pad="0"
+                 left="0"
+                 right="-1">
+                    <button
+                     follows="right|top"
+                     height="25"
+                     image_hover_unselected="Toolbar_Middle_Over"
+                     image_overlay="Conv_toolbar_collapse"
+                     image_selected="Toolbar_Middle_Selected"
+                     image_unselected="Toolbar_Middle_Off"
+                     layout="topleft"
+                     top="1"
+                     right="-10"
+                     name="stub_collapse_btn"
+                     tool_tip="Collapse this pane"
+                     width="31" />
+                    <text
+                     type="string"
+                     clip_partial="false"
+                     follows="left|top|right"
+                     layout="topleft"
+                     left="15"
+                     right="-15"
+                     name="stub_textbox"
+                     top="25"
+                     height="40"
+                     valign="center"
+                     parse_urls="true"
+                     wrap="true">
+                         This conversation is in a separate window.   [secondlife:/// Bring it back.]
+                    </text>
+                </panel>
             </panel_container>
         </layout_panel>
     </layout_stack>
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 08ecc37d21..c0ed2e6a78 100644
--- a/indra/newview/skins/default/xui/en/floater_im_session.xml
+++ b/indra/newview/skins/default/xui/en/floater_im_session.xml
@@ -70,27 +70,23 @@
      top="0"
      left="0"
      right="-1"
-     bottom="-3">
+     bottom="-1">
         <layout_stack
          animate="false" 
+         bottom="-1"
          default_tab_group="2"
          follows="all"
-         right="-5"
-         bottom="-1"
-         top="0"
          left="3"
-         border_size="0"
          layout="topleft"
-         orientation="vertical"
          name="main_stack"
-         tab_group="1">
+         right="-3"
+         orientation="vertical"
+         tab_group="1"
+         top="0">
             <layout_panel
              auto_resize="false"
-             user_resize="false"
              name="toolbar_panel"
-             height="35"
-             right="-1"
-             left="1">
+             height="25">
                 <menu_button
                  menu_filename="menu_im_session_showmodes.xml"
                  follows="top|left"
@@ -103,7 +99,7 @@
                  left="5"
                  name="view_options_btn"
                  tool_tip="View/sort options"
-                 top="5"
+                 top="1"
                  width="31" />
                 <menu_button
                  menu_filename="menu_im_conversation.xml"
@@ -114,7 +110,7 @@
                  image_selected="Toolbar_Middle_Selected"
                  image_unselected="Toolbar_Middle_Off"
                  layout="topleft"
-                 top="5"
+                 top="1"
                  left_pad="2"
                  name="gear_btn"
                  visible="false"
@@ -129,7 +125,7 @@
                  image_selected="Toolbar_Middle_Selected"
                  image_unselected="Toolbar_Middle_Off"
                  layout="topleft"
-                 top="5"
+                 top="1"
                  left_pad="2"
                  name="add_btn"
                  tool_tip="Add someone to this conversation"
@@ -142,7 +138,7 @@
                  image_selected="Toolbar_Middle_Selected"
                  image_unselected="Toolbar_Middle_Off"
                  layout="topleft"
-                 top="5"
+                 top="1"
                  left_pad="2"
                  name="voice_call_btn"
                  tool_tip="Open voice connection"
@@ -167,8 +163,8 @@
                  image_selected="Toolbar_Middle_Selected"
                  image_unselected="Toolbar_Middle_Off"
                  layout="topleft"
-                 top="5"
-                 right="-67"
+                 top="1"
+                 right="-70"
                  name="close_btn"
                  tool_tip="End this conversation"
                  width="31" />
@@ -180,7 +176,7 @@
                  image_selected="Toolbar_Middle_Selected"
                  image_unselected="Toolbar_Middle_Off"
                  layout="topleft"
-                 top="5"
+                 top="1"
                  left_pad="2"
                  name="expand_collapse_btn"
                  tool_tip="Collapse/Expand this pane"
@@ -195,20 +191,21 @@
                  layout="topleft"
                  left_pad="2"
                  name="tear_off_btn"
-                 top="5"
+                 top="1"
                  width="31" />
             </layout_panel>
             <layout_panel
              name="body_panel"
-             top="1"
-             bottom="-1"
-             auto_resize="true"
-             user_resize="false">
+             height="235">
                 <layout_stack
                  default_tab_group="2"
+                 drag_handle_gap="6"
+                 drag_handle_first_indent="0"
+                 drag_handle_second_indent="1"
                  follows="all"
                  orientation="horizontal"
                  name="im_panels"
+                 show_drag_handle="true"
                  tab_group="1"
                  top="0"
                  right="-1"
@@ -220,14 +217,12 @@
                      min_dim="0"
                      width="150" 
                      user_resize="true"
-                     auto_resize="false" 
-                     bottom="-1" />
+                     auto_resize="false" />
                     <layout_panel
                      default_tab_group="3"
                      tab_group="2"
                      name="right_part_holder"
-                     min_width="221"
-                     bottom="-1">
+                     min_width="221">
                         <layout_stack
                          animate="true" 
                          default_tab_group="2"
@@ -236,7 +231,7 @@
                          name="translate_and_chat_stack"
                          tab_group="1"
                          top="0"
-                         left="0"
+                         left="1"
                          right="-1"
                          bottom="-1">
                             <layout_panel
@@ -262,7 +257,7 @@
                                  parse_highlights="true"
                                  parse_urls="true"
                                  right="-1"
-                                 left="5"
+                                 left="0"
                                  top="0"
                                  bottom="-1" />
                             </layout_panel>
@@ -271,12 +266,8 @@
                 </layout_stack>
             </layout_panel>
             <layout_panel
-             top_delta="0"
-             top="0"
-             height="26"
-             bottom="-1"
+             height="35"
              auto_resize="false"
-             user_resize="false"
              name="chat_layout_panel">
                 <layout_stack
                  animate="false"
@@ -285,15 +276,11 @@
                  orientation="horizontal"
                  name="input_panels"
                  top="0"
-                 bottom="-2"
+                 bottom="-1"
                  left="0"
                  right="-1">
                     <layout_panel
-                     name="input_editor_layout_panel"
-                     auto_resize="true"
-                     user_resize="false"
-                     top="0"
-                     bottom="-1">
+                     name="input_editor_layout_panel">
                         <chat_editor
                          layout="topleft"
                          expand_lines_count="5"
@@ -306,32 +293,27 @@
                          max_length="1023"
                          spellcheck="true"
                          tab_group="3"
-                         top="1"
-                         bottom="-2"
-                         left="4"
-                         right="-4"
+                         bottom="-8"
+                         left="5"
+                         right="-5"
                          wrap="true" />
                     </layout_panel>
                     <layout_panel
                      auto_resize="false"
-                     user_resize="false"
                      name="input_button_layout_panel"
-                     width="30"
-                     top="0"
-                     bottom="-1">
+                     width="32">
                         <button
-                         layout="topleft"
                          left="1"
-                         right="-1"
-                         top="1"
-                         height="22"
+                         top="4"
+                         height="25"
                          follows="left|right|top"
                          image_hover_unselected="Toolbar_Middle_Over"
                          image_overlay="Conv_expand_one_line"
                          image_selected="Toolbar_Middle_Selected"
                          image_unselected="Toolbar_Middle_Off"
                          name="minz_btn"
-                         tool_tip="Shows/hides message panel" />
+                         tool_tip="Shows/hides message panel"
+                         width="28" />
                     </layout_panel>
                 </layout_stack>
             </layout_panel>