Merged in DV528-merge-6.5.5 (pull request #945)

DRTVWR-528 merge up to 6.5.5

22 files changed, 259 insertions, 30 deletions

diff --git a/indra/llui/llfloaterreg.cpp b/indra/llui/llfloaterreg.cpp
index 36a0cb0fd0..f888d7ff68 100644
--- a/indra/llui/llfloaterreg.cpp
+++ b/indra/llui/llfloaterreg.cpp
@@ -531,6 +531,58 @@ void LLFloaterReg::toggleInstanceOrBringToFront(const LLSD& sdname, const LLSD&
 }
 
 // static
+// Same as toggleInstanceOrBringToFront but does not close floater.
+// unlike showInstance() does not trigger onOpen() if already open
+void LLFloaterReg::showInstanceOrBringToFront(const LLSD& sdname, const LLSD& key)
+{
+    std::string name = sdname.asString();
+    LLFloater* instance = getInstance(name, key);
+
+
+    if (!instance)
+    {
+        LL_DEBUGS() << "Unable to get instance of floater '" << name << "'" << LL_ENDL;
+        return;
+    }
+
+    // If hosted, we need to take that into account
+    LLFloater* host = instance->getHost();
+
+    if (host)
+    {
+        if (host->isMinimized() || !host->isShown() || !host->isFrontmost())
+        {
+            host->setMinimized(FALSE);
+            instance->openFloater(key);
+            instance->setVisibleAndFrontmost(true, key);
+        }
+        else if (!instance->getVisible())
+        {
+            instance->openFloater(key);
+            instance->setVisibleAndFrontmost(true, key);
+            instance->setFocus(TRUE);
+        }
+    }
+    else
+    {
+        if (instance->isMinimized())
+        {
+            instance->setMinimized(FALSE);
+            instance->setVisibleAndFrontmost(true, key);
+        }
+        else if (!instance->isShown())
+        {
+            instance->openFloater(key);
+            instance->setVisibleAndFrontmost(true, key);
+        }
+        else if (!instance->isFrontmost())
+        {
+            instance->setVisibleAndFrontmost(true, key);
+        }
+    }
+}
+
+// static
 U32 LLFloaterReg::getVisibleFloaterInstanceCount()
 {
 	U32 count = 0;
diff --git a/indra/llui/llfloaterreg.h b/indra/llui/llfloaterreg.h
index a457a15673..eaa59b1d6f 100644
--- a/indra/llui/llfloaterreg.h
+++ b/indra/llui/llfloaterreg.h
@@ -129,6 +129,7 @@ public:
 
 	// Callback wrappers
 	static void toggleInstanceOrBringToFront(const LLSD& sdname, const LLSD& key = LLSD());
+	static void showInstanceOrBringToFront(const LLSD& sdname, const LLSD& key = LLSD());
 	
 	// Typed find / get / show
 	template <class T>
diff --git a/indra/llui/llfolderview.cpp b/indra/llui/llfolderview.cpp
index 622c9edba7..54fdee6901 100644
--- a/indra/llui/llfolderview.cpp
+++ b/indra/llui/llfolderview.cpp
@@ -257,6 +257,8 @@ LLFolderView::LLFolderView(const Params& p)
 	mPopupMenuHandle = menu->getHandle();
 
 	mViewModelItem->openItem();
+
+	mAreChildrenInited = true; // root folder is a special case due to not being loaded normally, assume that it's inited.
 }
 
 // Destroys the object
diff --git a/indra/llui/llfolderviewitem.cpp b/indra/llui/llfolderviewitem.cpp
index 285bf9f484..eba93beed9 100644
--- a/indra/llui/llfolderviewitem.cpp
+++ b/indra/llui/llfolderviewitem.cpp
@@ -132,7 +132,6 @@ LLFolderViewItem::LLFolderViewItem(const LLFolderViewItem::Params& p)
 	mCutGeneration(0),
 	mLabelStyle( LLFontGL::NORMAL ),
 	mHasVisibleChildren(FALSE),
-	mIsFolderComplete(true),
     mLocalIndentation(p.folder_indentation),
 	mIndentation(0),
 	mItemHeight(p.item_height),
@@ -1003,11 +1002,11 @@ LLFolderViewFolder::LLFolderViewFolder( const LLFolderViewItem::Params& p ):
 	mCurHeight(0.f),
 	mTargetHeight(0.f),
 	mAutoOpenCountdown(0.f),
+	mIsFolderComplete(false), // folder might have children that are not loaded yet.
+	mAreChildrenInited(false), // folder might have children that are not built yet.
 	mLastArrangeGeneration( -1 ),
 	mLastCalculatedWidth(0)
 {
-	// folder might have children that are not loaded yet. Mark it as incomplete until chance to check it.
-	mIsFolderComplete = false;
 }
 
 void LLFolderViewFolder::updateLabelRotation()
@@ -1063,13 +1062,16 @@ S32 LLFolderViewFolder::arrange( S32* width, S32* height )
 {
 	// Sort before laying out contents
     // Note that we sort from the root (CHUI-849)
-	getRoot()->getFolderViewModel()->sort(this);
+    if (mAreChildrenInited)
+    {
+        getRoot()->getFolderViewModel()->sort(this);
+    }
 
 	LL_RECORD_BLOCK_TIME(FTM_ARRANGE);
 	
 	// evaluate mHasVisibleChildren
 	mHasVisibleChildren = false;
-	if (getViewModelItem()->descendantsPassedFilter())
+	if (mAreChildrenInited && getViewModelItem()->descendantsPassedFilter())
 	{
 		// We have to verify that there's at least one child that's not filtered out
 		bool found = false;
@@ -1095,7 +1097,7 @@ S32 LLFolderViewFolder::arrange( S32* width, S32* height )
 
 		mHasVisibleChildren = found;
 	}
-	if (!mIsFolderComplete)
+	if (!mIsFolderComplete && mAreChildrenInited)
 	{
 		mIsFolderComplete = getFolderViewModel()->isFolderComplete(this);
 	}
diff --git a/indra/llui/llfolderviewitem.h b/indra/llui/llfolderviewitem.h
index 616d2e7d86..ee20d048fd 100644
--- a/indra/llui/llfolderviewitem.h
+++ b/indra/llui/llfolderviewitem.h
@@ -116,7 +116,6 @@ protected:
 	F32							mControlLabelRotation;
 	LLFolderView*				mRoot;
 	bool						mHasVisibleChildren,
-								mIsFolderComplete, // indicates that some children were not loaded/added yet
 								mIsCurSelection,
 								mDragAndDropTarget,
 								mIsMouseOverTitle,
@@ -219,7 +218,10 @@ public:
 	BOOL hasVisibleChildren() { return mHasVisibleChildren; }
 
 	// true if object can't have children
-	BOOL isFolderComplete() { return mIsFolderComplete; }
+	virtual bool isFolderComplete() { return true; }
+    // true if object can't have children
+    virtual bool areChildrenInited() { return true; }
+    virtual void setChildrenInited(bool inited) { }
 
 	// Call through to the viewed object and return true if it can be
 	// removed. Returns true if it's removed.
@@ -334,6 +336,8 @@ protected:
 	S32			mLastArrangeGeneration;
 	S32			mLastCalculatedWidth;
 	bool		mNeedsSort;
+	bool		mIsFolderComplete; // indicates that some children were not loaded/added yet
+	bool		mAreChildrenInited; // indicates that no children were initialized
 
 public:
 	typedef enum e_recurse_type
@@ -385,6 +389,13 @@ public:
 	// destroys this folder, and all children
 	virtual void destroyView();
 
+    // whether known children are fully loaded (arrange sets to true)
+    virtual bool isFolderComplete() { return mIsFolderComplete; }
+
+    // whether known children are fully built
+    virtual bool areChildrenInited() { return mAreChildrenInited; }
+    virtual void setChildrenInited(bool inited) { mAreChildrenInited = inited; }
+
 	// extractItem() removes the specified item from the folder, but
 	// doesn't delete it.
 	virtual void extractItem( LLFolderViewItem* item, bool deparent_model = true);
diff --git a/indra/llui/lllineeditor.cpp b/indra/llui/lllineeditor.cpp
index 1badd54fca..33037b5001 100644
--- a/indra/llui/lllineeditor.cpp
+++ b/indra/llui/lllineeditor.cpp
@@ -175,6 +175,14 @@ LLLineEditor::LLLineEditor(const LLLineEditor::Params& p)
 	mTripleClickTimer.reset();
 	setText(p.default_text());
 
+    if (p.initial_value.isProvided()
+        && !p.control_name.isProvided())
+    {
+        // Initial value often is descriptive, like "Type some ID here"
+        // and can be longer than size limitation, ignore size
+        setText(p.initial_value.getValue().asString(), false);
+    }
+
 	// Initialize current history line iterator
 	mCurrentHistoryLine = mLineHistory.begin();
 
@@ -390,6 +398,11 @@ void LLLineEditor::updateTextPadding()
 
 void LLLineEditor::setText(const LLStringExplicit &new_text)
 {
+    setText(new_text, true);
+}
+
+void LLLineEditor::setText(const LLStringExplicit &new_text, bool use_size_limit)
+{
 	// If new text is identical, don't copy and don't move insertion point
 	if (mText.getString() == new_text)
 	{
@@ -407,13 +420,13 @@ void LLLineEditor::setText(const LLStringExplicit &new_text)
 	all_selected = all_selected || (len == 0 && hasFocus() && mSelectAllonFocusReceived);
 
 	std::string truncated_utf8 = new_text;
-	if (truncated_utf8.size() > (U32)mMaxLengthBytes)
+	if (use_size_limit && truncated_utf8.size() > (U32)mMaxLengthBytes)
 	{	
 		truncated_utf8 = utf8str_truncate(new_text, mMaxLengthBytes);
 	}
 	mText.assign(truncated_utf8);
 
-	if (mMaxLengthChars)
+	if (use_size_limit && mMaxLengthChars)
 	{
 		mText.assign(utf8str_symbol_truncate(truncated_utf8, mMaxLengthChars));
 	}
diff --git a/indra/llui/lllineeditor.h b/indra/llui/lllineeditor.h
index f84625bea7..ae4e05c065 100644
--- a/indra/llui/lllineeditor.h
+++ b/indra/llui/lllineeditor.h
@@ -320,6 +320,8 @@ private:
 	virtual S32		getPreeditFontSize() const;
 	virtual LLWString getPreeditString() const { return getWText(); }
 
+    void			setText(const LLStringExplicit &new_text, bool use_size_limit);
+
 	void			setContextMenu(LLContextMenu* new_context_menu);
 
 protected:
diff --git a/indra/llui/llmenugl.cpp b/indra/llui/llmenugl.cpp
index cdaf03ebde..76fd789bec 100644
--- a/indra/llui/llmenugl.cpp
+++ b/indra/llui/llmenugl.cpp
@@ -2362,6 +2362,16 @@ void LLMenuGL::arrange( void )
 				(*item_iter)->setRect( rect );
 			}
 		}
+
+
+        if (getTornOff())
+        {
+            LLTearOffMenu * torn_off_menu = dynamic_cast<LLTearOffMenu*>(getParent());
+            if (torn_off_menu)
+            {
+                torn_off_menu->updateSize();
+            }
+        }
 	}
 	if (mKeepFixedSize)
 	{
@@ -3879,7 +3889,8 @@ void LLMenuHolderGL::setActivatedItem(LLMenuItemGL* item)
 /// Class LLTearOffMenu
 ///============================================================================
 LLTearOffMenu::LLTearOffMenu(LLMenuGL* menup) : 
-	LLFloater(LLSD())
+	LLFloater(LLSD()),
+    mQuitRequested(false)
 {
 	S32 floater_header_size = getHeaderHeight();
 
@@ -3894,7 +3905,7 @@ LLTearOffMenu::LLTearOffMenu(LLMenuGL* menup) :
 	LLRect rect;
 	menup->localRectToOtherView(LLRect(-1, menup->getRect().getHeight(), menup->getRect().getWidth() + 3, 0), &rect, gFloaterView);
 	// make sure this floater is big enough for menu
-	mTargetHeight = (F32)(rect.getHeight() + floater_header_size);
+	mTargetHeight = rect.getHeight() + floater_header_size;
 	reshape(rect.getWidth(), rect.getHeight());
 	setRect(rect);
 
@@ -3926,19 +3937,24 @@ LLTearOffMenu::~LLTearOffMenu()
 void LLTearOffMenu::draw()
 {
 	mMenu->setBackgroundVisible(isBackgroundOpaque());
-	mMenu->needsArrange();
 
 	if (getRect().getHeight() != mTargetHeight)
 	{
 		// animate towards target height
-		reshape(getRect().getWidth(), llceil(lerp((F32)getRect().getHeight(), mTargetHeight, LLSmoothInterpolation::getInterpolant(0.05f))));
+        reshape(getRect().getWidth(), llceil(lerp((F32)getRect().getHeight(), (F32)mTargetHeight, LLSmoothInterpolation::getInterpolant(0.05f))));
+        mMenu->needsArrange();
 	}
 	LLFloater::draw();
 }
 
 void LLTearOffMenu::onFocusReceived()
 {
-	// if nothing is highlighted, just highlight first item
+    if (mQuitRequested)
+    {
+        return;
+    }
+ 
+    // if nothing is highlighted, just highlight first item
 	if (!mMenu->getHighlightedItem())
 	{
 		mMenu->highlightNextItem(NULL);
@@ -4014,6 +4030,31 @@ LLTearOffMenu* LLTearOffMenu::create(LLMenuGL* menup)
 	return tearoffp;
 }
 
+void LLTearOffMenu::updateSize()
+{
+    if (mMenu)
+    {
+        S32 floater_header_size = getHeaderHeight();
+        const LLRect &floater_rect = getRect();
+        LLRect new_rect;
+        mMenu->localRectToOtherView(LLRect(-1, mMenu->getRect().getHeight() + floater_header_size, mMenu->getRect().getWidth() + 3, 0), &new_rect, gFloaterView);
+
+        if (floater_rect.getWidth() != new_rect.getWidth()
+            || mTargetHeight != new_rect.getHeight())
+        {
+            // make sure this floater is big enough for menu
+            mTargetHeight = new_rect.getHeight();
+            reshape(new_rect.getWidth(), mTargetHeight);
+
+            // Restore menu position
+            LLRect menu_rect = mMenu->getRect();
+            menu_rect.setOriginAndSize(1, 1,
+                menu_rect.getWidth(), menu_rect.getHeight());
+            mMenu->setRect(menu_rect);
+        }
+    }
+}
+
 void LLTearOffMenu::closeTearOff()
 {
 	removeChild(mMenu);
@@ -4024,6 +4065,7 @@ void LLTearOffMenu::closeTearOff()
 	mMenu->setVisible(FALSE);
 	mMenu->setTornOff(FALSE);
 	mMenu->setDropShadowed(TRUE);
+    mQuitRequested = true;
 }
 
 LLContextMenuBranch::LLContextMenuBranch(const LLContextMenuBranch::Params& p) 
diff --git a/indra/llui/llmenugl.h b/indra/llui/llmenugl.h
index 273bd789c4..abbfd9a24a 100644
--- a/indra/llui/llmenugl.h
+++ b/indra/llui/llmenugl.h
@@ -873,6 +873,8 @@ public:
 	virtual BOOL handleKeyHere(KEY key, MASK mask);
 	virtual void translate(S32 x, S32 y);
 
+	void updateSize();
+
 private:
 	LLTearOffMenu(LLMenuGL* menup);
 	
@@ -880,7 +882,8 @@ private:
 	
 	LLView*		mOldParent;
 	LLMenuGL*	mMenu;
-	F32			mTargetHeight;
+	S32			mTargetHeight;
+    bool        mQuitRequested;
 };
 
 //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
diff --git a/indra/llui/llnotifications.cpp b/indra/llui/llnotifications.cpp
index b791a19c2b..a1f0e78bf3 100644
--- a/indra/llui/llnotifications.cpp
+++ b/indra/llui/llnotifications.cpp
@@ -1700,6 +1700,20 @@ void LLNotifications::add(const LLNotificationPtr pNotif)
 	updateItem(LLSD().with("sigtype", "add").with("id", pNotif->id()), pNotif);
 }
 
+void LLNotifications::load(const LLNotificationPtr pNotif)
+{
+	if (pNotif == NULL) return;
+
+	// first see if we already have it -- if so, that's a problem
+	LLNotificationSet::iterator it=mItems.find(pNotif);
+	if (it != mItems.end())
+	{
+		LL_ERRS() << "Notification loaded a second time to the master notification channel." << LL_ENDL;
+	}
+
+	updateItem(LLSD().with("sigtype", "load").with("id", pNotif->id()), pNotif);
+}
+
 void LLNotifications::cancel(LLNotificationPtr pNotif)
 {
 	if (pNotif == NULL || pNotif->isCancelled()) return;
diff --git a/indra/llui/llnotifications.h b/indra/llui/llnotifications.h
index 1c4860aa99..921398a693 100644
--- a/indra/llui/llnotifications.h
+++ b/indra/llui/llnotifications.h
@@ -917,6 +917,7 @@ public:
 	LLNotificationPtr add(const LLNotification::Params& p);
 
 	void add(const LLNotificationPtr pNotif);
+	void load(const LLNotificationPtr pNotif);
 	void cancel(LLNotificationPtr pNotif);
 	void cancelByName(const std::string& name);
 	void cancelByOwner(const LLUUID ownerId);
@@ -1117,6 +1118,11 @@ private:
 		mHistory.push_back(p);
 	}
 
+	void onLoad(LLNotificationPtr p) 
+	{
+		mHistory.push_back(p);
+	}
+
 	std::vector<LLNotificationPtr> mHistory;
 };
 
diff --git a/indra/llui/llscrolllistcell.cpp b/indra/llui/llscrolllistcell.cpp
index 13839da400..8dd552d2ad 100644
--- a/indra/llui/llscrolllistcell.cpp
+++ b/indra/llui/llscrolllistcell.cpp
@@ -79,6 +79,14 @@ const LLSD LLScrollListCell::getValue() const
 	return LLStringUtil::null;
 }
 
+
+// virtual
+const LLSD LLScrollListCell::getAltValue() const
+{
+	return LLStringUtil::null;
+}
+
+
 //
 // LLScrollListIcon
 //
@@ -173,6 +181,7 @@ U32 LLScrollListText::sCount = 0;
 LLScrollListText::LLScrollListText(const LLScrollListCell::Params& p)
 :	LLScrollListCell(p),
 	mText(p.label.isProvided() ? p.label() : p.value().asString()),
+	mAltText(p.alt_value().asString()),
 	mFont(p.font),
 	mColor(p.color),
 	mUseColor(p.color.isProvided()),
@@ -275,10 +284,22 @@ void LLScrollListText::setValue(const LLSD& text)
 	setText(text.asString());
 }
 
+//virtual
+void LLScrollListText::setAltValue(const LLSD& text)
+{
+	mAltText = text.asString();
+}
+
 //virtual 
 const LLSD LLScrollListText::getValue() const		
 { 
-	return LLSD(mText.getString()); 
+	return LLSD(mText.getString());  
+}
+
+//virtual 
+const LLSD LLScrollListText::getAltValue() const		
+{ 
+	return LLSD(mAltText.getString());
 }
 
 
diff --git a/indra/llui/llscrolllistcell.h b/indra/llui/llscrolllistcell.h
index 19576fb247..ede8d847d9 100644
--- a/indra/llui/llscrolllistcell.h
+++ b/indra/llui/llscrolllistcell.h
@@ -60,6 +60,7 @@ public:
 
 		Optional<void*>				userdata;
 		Optional<LLSD>				value; // state of checkbox, icon id/name, date
+		Optional<LLSD>				alt_value;
 		Optional<std::string>		label; // description or text
 		Optional<std::string>		tool_tip;
 
@@ -76,6 +77,7 @@ public:
 			enabled("enabled", true),
 			visible("visible", true),
 			value("value"),
+			alt_value("alt_value", ""),
 			label("label"),
 			tool_tip("tool_tip", ""),
 			font("font", LLFontGL::getFontSansSerifSmall()),
@@ -98,7 +100,9 @@ public:
 	virtual S32				getContentWidth() const { return 0; }
 	virtual S32				getHeight() const { return 0; }
 	virtual const LLSD		getValue() const;
+	virtual const LLSD		getAltValue() const;
 	virtual void			setValue(const LLSD& value) { }
+	virtual void			setAltValue(const LLSD& value) { }
 	virtual const std::string &getToolTip() const { return mToolTip; }
 	virtual void			setToolTip(const std::string &str) { mToolTip = str; }
 	virtual BOOL			getVisible() const { return TRUE; }
@@ -138,7 +142,9 @@ public:
 	/*virtual*/ S32		getContentWidth() const;
 	/*virtual*/ S32		getHeight() const;
 	/*virtual*/ void	setValue(const LLSD& value);
+	/*virtual*/ void	setAltValue(const LLSD& value);
 	/*virtual*/ const LLSD getValue() const;
+	/*virtual*/ const LLSD getAltValue() const;
 	/*virtual*/ BOOL	getVisible() const;
 	/*virtual*/ void	highlightText(S32 offset, S32 num_chars);
 
@@ -156,6 +162,7 @@ public:
 
 protected:
 	LLUIString		mText;
+	LLUIString		mAltText;
 	S32				mTextWidth;
 	const LLFontGL*	mFont;
 	LLColor4		mColor;
diff --git a/indra/llui/llscrolllistctrl.cpp b/indra/llui/llscrolllistctrl.cpp
index de644185fd..cd87c44dc2 100644
--- a/indra/llui/llscrolllistctrl.cpp
+++ b/indra/llui/llscrolllistctrl.cpp
@@ -66,9 +66,10 @@ static LLDefaultChildRegistry::Register<LLScrollListCtrl> r("scroll_list");
 // local structures & classes.
 struct SortScrollListItem
 {
-	SortScrollListItem(const std::vector<std::pair<S32, BOOL> >& sort_orders,const LLScrollListCtrl::sort_signal_t*	sort_signal)
+	SortScrollListItem(const std::vector<std::pair<S32, BOOL> >& sort_orders,const LLScrollListCtrl::sort_signal_t*	sort_signal, bool alternate_sort)
 	:	mSortOrders(sort_orders)
 	,   mSortSignal(sort_signal)
+	,	mAltSort(alternate_sort)
 	{}
 
 	bool operator()(const LLScrollListItem* i1, const LLScrollListItem* i2)
@@ -93,7 +94,14 @@ struct SortScrollListItem
 				}
 				else
 				{
-					sort_result = order * LLStringUtil::compareDict(cell1->getValue().asString(), cell2->getValue().asString());
+					if (mAltSort && !cell1->getAltValue().asString().empty() && !cell2->getAltValue().asString().empty())
+					{
+						sort_result = order * LLStringUtil::compareDict(cell1->getAltValue().asString(), cell2->getAltValue().asString());
+					}
+					else
+					{
+						sort_result = order * LLStringUtil::compareDict(cell1->getValue().asString(), cell2->getValue().asString());
+					}
 				}
 				if (sort_result != 0)
 				{
@@ -109,6 +117,7 @@ struct SortScrollListItem
 	typedef std::vector<std::pair<S32, BOOL> > sort_order_t;
 	const LLScrollListCtrl::sort_signal_t* mSortSignal;
 	const sort_order_t& mSortOrders;
+	const bool mAltSort;
 };
 
 //---------------------------------------------------------------------------
@@ -213,6 +222,7 @@ LLScrollListCtrl::LLScrollListCtrl(const LLScrollListCtrl::Params& p)
 	mSearchColumn(p.search_column),
 	mColumnPadding(p.column_padding),
 	mRowPadding(p.row_padding),
+	mAlternateSort(false),
 	mContextMenuType(MENU_NONE),
 	mIsFriendSignal(NULL)
 {
@@ -336,8 +346,7 @@ LLScrollListCtrl::~LLScrollListCtrl()
 
 	std::for_each(mItemList.begin(), mItemList.end(), DeletePointer());
 	mItemList.clear();
-	std::for_each(mColumns.begin(), mColumns.end(), DeletePairedPointer());
-	mColumns.clear();
+    clearColumns(); //clears columns and deletes headers
 	delete mIsFriendSignal;
 }
 
@@ -2680,7 +2689,7 @@ void LLScrollListCtrl::updateSort() const
 		std::stable_sort(
 			mItemList.begin(), 
 			mItemList.end(), 
-			SortScrollListItem(mSortColumns,mSortCallback));
+			SortScrollListItem(mSortColumns,mSortCallback, mAlternateSort));
 
 		mSorted = true;
 	}
@@ -2696,7 +2705,7 @@ void LLScrollListCtrl::sortOnce(S32 column, BOOL ascending)
 	std::stable_sort(
 		mItemList.begin(), 
 		mItemList.end(), 
-		SortScrollListItem(sort_column,mSortCallback));
+		SortScrollListItem(sort_column,mSortCallback,mAlternateSort));
 }
 
 void LLScrollListCtrl::dirtyColumns() 
@@ -3011,6 +3020,8 @@ void LLScrollListCtrl::clearColumns()
 	mSortColumns.clear();
 	mTotalStaticColumnWidth = 0;
 	mTotalColumnPadding = 0;
+
+    dirtyColumns(); // Clears mColumnsIndexed
 }
 
 void LLScrollListCtrl::setColumnLabel(const std::string& column, const std::string& label)
diff --git a/indra/llui/llscrolllistctrl.h b/indra/llui/llscrolllistctrl.h
index 0cc481b113..08134bbfc8 100644
--- a/indra/llui/llscrolllistctrl.h
+++ b/indra/llui/llscrolllistctrl.h
@@ -398,6 +398,8 @@ public:
 	BOOL			hasSortOrder() const;
 	void			clearSortOrder();
 
+	void			setAlternateSort() { mAlternateSort = true; }
+
 	S32		selectMultiple( uuid_vec_t ids );
 	// conceptually const, but mutates mItemList
 	void			updateSort() const;
@@ -482,6 +484,8 @@ private:
 	bool			mColumnsDirty;
 	bool			mColumnWidthsDirty;
 
+	bool			mAlternateSort;
+
 	mutable item_list	mItemList;
 
 	LLScrollListItem *mLastSelected;
diff --git a/indra/llui/llscrolllistitem.cpp b/indra/llui/llscrolllistitem.cpp
index 51c615dd00..e1360f80cd 100644
--- a/indra/llui/llscrolllistitem.cpp
+++ b/indra/llui/llscrolllistitem.cpp
@@ -44,7 +44,8 @@ LLScrollListItem::LLScrollListItem( const Params& p )
 	mSelectedIndex(-1),
 	mEnabled(p.enabled),
 	mUserdata(p.userdata),
-	mItemValue(p.value)
+	mItemValue(p.value),
+	mItemAltValue(p.alt_value)
 {
 }
 
diff --git a/indra/llui/llscrolllistitem.h b/indra/llui/llscrolllistitem.h
index d2c3dd7721..a3398305b1 100644
--- a/indra/llui/llscrolllistitem.h
+++ b/indra/llui/llscrolllistitem.h
@@ -55,6 +55,7 @@ public:
 		Optional<bool>		enabled;
 		Optional<void*>		userdata;
 		Optional<LLSD>		value;
+		Optional<LLSD>		alt_value;
 		
 		Ignored				name; // use for localization tools
 		Ignored				type; 
@@ -65,6 +66,7 @@ public:
 		Params()
 		:	enabled("enabled", true),
 			value("value"),
+			alt_value("alt_value"),
 			name("name"),
 			type("type"),
 			length("length"),
@@ -97,6 +99,7 @@ public:
 
 	virtual LLUUID	getUUID() const			{ return mItemValue.asUUID(); }
 	LLSD	getValue() const				{ return mItemValue; }
+	LLSD	getAltValue() const				{ return mItemAltValue; }
 	
 	void	setRect(LLRect rect)			{ mRectangle = rect; }
 	LLRect	getRect() const					{ return mRectangle; }
@@ -131,6 +134,7 @@ private:
 	BOOL	mEnabled;
 	void*	mUserdata;
 	LLSD	mItemValue;
+	LLSD	mItemAltValue;
 	std::vector<LLScrollListCell *> mColumns;
 	LLRect  mRectangle;
 };
diff --git a/indra/llui/lltextbase.cpp b/indra/llui/lltextbase.cpp
index 05788f1b6c..0532750dce 100644
--- a/indra/llui/lltextbase.cpp
+++ b/indra/llui/lltextbase.cpp
@@ -1564,11 +1564,14 @@ void LLTextBase::reflow()
 		{
 			// find first element whose end comes after start_index
 			line_list_t::iterator iter = std::upper_bound(mLineInfoList.begin(), mLineInfoList.end(), start_index, line_end_compare());
-			line_start_index = iter->mDocIndexStart;
-			line_count = iter->mLineNum;
-			cur_top = iter->mRect.mTop;
-			getSegmentAndOffset(iter->mDocIndexStart, &seg_iter, &seg_offset);
-			mLineInfoList.erase(iter, mLineInfoList.end());
+            if (iter != mLineInfoList.end())
+            {
+                line_start_index = iter->mDocIndexStart;
+                line_count = iter->mLineNum;
+                cur_top = iter->mRect.mTop;
+                getSegmentAndOffset(iter->mDocIndexStart, &seg_iter, &seg_offset);
+                mLineInfoList.erase(iter, mLineInfoList.end());
+            }
 		}
 
 		S32 line_height = 0;
diff --git a/indra/llui/llui.cpp b/indra/llui/llui.cpp
index 6f16745bd3..3f3ec7ee8b 100644
--- a/indra/llui/llui.cpp
+++ b/indra/llui/llui.cpp
@@ -173,6 +173,7 @@ mHelpImpl(NULL)
 	reg.add("Floater.Toggle", boost::bind(&LLFloaterReg::toggleInstance, _2, LLSD()));
 	reg.add("Floater.ToggleOrBringToFront", boost::bind(&LLFloaterReg::toggleInstanceOrBringToFront, _2, LLSD()));
 	reg.add("Floater.Show", boost::bind(&LLFloaterReg::showInstance, _2, LLSD(), FALSE));
+	reg.add("Floater.ShowOrBringToFront", boost::bind(&LLFloaterReg::showInstanceOrBringToFront, _2, LLSD()));
 	reg.add("Floater.Hide", boost::bind(&LLFloaterReg::hideInstance, _2, LLSD()));
 	
 	// Button initialization callback for toggle buttons
diff --git a/indra/llui/llurlentry.cpp b/indra/llui/llurlentry.cpp
index 38495e1e0b..1547a4ba5c 100644
--- a/indra/llui/llurlentry.cpp
+++ b/indra/llui/llurlentry.cpp
@@ -1017,6 +1017,24 @@ std::string LLUrlEntryObjectIM::getLocation(const std::string &url) const
 	return LLUrlEntryBase::getLocation(url);
 }
 
+//
+// LLUrlEntryChat Describes a Second Life chat Url, e.g.,
+// secondlife:///app/chat/42/This%20Is%20a%20test
+//
+
+LLUrlEntryChat::LLUrlEntryChat()
+{
+    mPattern = boost::regex("secondlife:///app/chat/\\d+/\\S+",
+        boost::regex::perl|boost::regex::icase);
+    mMenuName = "menu_url_slapp.xml";
+    mTooltip = LLTrans::getString("TooltipSLAPP");
+}
+
+std::string LLUrlEntryChat::getLabel(const std::string &url, const LLUrlLabelCallback &cb)
+{
+    return unescapeUrl(url);
+}
+
 // LLUrlEntryParcel statics.
 LLUUID	LLUrlEntryParcel::sAgentID(LLUUID::null);
 LLUUID	LLUrlEntryParcel::sSessionID(LLUUID::null);
diff --git a/indra/llui/llurlentry.h b/indra/llui/llurlentry.h
index 102e0a4fd9..63a1506731 100644
--- a/indra/llui/llurlentry.h
+++ b/indra/llui/llurlentry.h
@@ -370,6 +370,17 @@ public:
 private:
 };
 
+//
+// LLUrlEntryChat Describes a Second Life chat Url, e.g.,
+// secondlife:///app/chat/42/This%20Is%20a%20test
+//
+class LLUrlEntryChat : public LLUrlEntryBase
+{
+public:
+    LLUrlEntryChat();
+    /*virtual*/ std::string getLabel(const std::string &url, const LLUrlLabelCallback &cb);
+};
+
 ///
 /// LLUrlEntryParcel Describes a Second Life parcel Url, e.g.,
 /// secondlife:///app/parcel/0000060e-4b39-e00b-d0c3-d98b1934e3a8/about
diff --git a/indra/llui/llurlregistry.cpp b/indra/llui/llurlregistry.cpp
index bfcd970529..c9d7013a11 100644
--- a/indra/llui/llurlregistry.cpp
+++ b/indra/llui/llurlregistry.cpp
@@ -63,6 +63,7 @@ LLUrlRegistry::LLUrlRegistry()
 	// LLUrlEntryAgent*Name must appear before LLUrlEntryAgent since 
 	// LLUrlEntryAgent is a less specific (catchall for agent urls)
 	registerUrl(new LLUrlEntryAgent());
+    registerUrl(new LLUrlEntryChat());
 	registerUrl(new LLUrlEntryGroup());
 	registerUrl(new LLUrlEntryParcel());
 	registerUrl(new LLUrlEntryTeleport());
@@ -71,7 +72,6 @@ LLUrlRegistry::LLUrlRegistry()
 	registerUrl(new LLUrlEntryObjectIM());
 	registerUrl(new LLUrlEntryPlace());
 	registerUrl(new LLUrlEntryInventory());
-	registerUrl(new LLUrlEntryObjectIM());
     registerUrl(new LLUrlEntryExperienceProfile());
 	//LLUrlEntrySL and LLUrlEntrySLLabel have more common pattern, 
 	//so it should be registered in the end of list