8 files changed, 50 insertions, 12 deletions
diff --git a/indra/llui/llcombobox.cpp b/indra/llui/llcombobox.cpp
index 2dabbc7767..a268ee5d75 100644
--- a/indra/llui/llcombobox.cpp
+++ b/indra/llui/llcombobox.cpp
@@ -769,7 +769,7 @@ BOOL LLComboBox::handleKeyHere(KEY key, MASK mask)
 			return FALSE;
 		}
 		// if selection has changed, pop open list
-		else if (mList->getLastSelectedItem() != last_selected_item)
+		else
 		{
 			showList();
 		}
diff --git a/indra/llui/lldockcontrol.cpp b/indra/llui/lldockcontrol.cpp
index d48674f306..f6f5a0beb3 100644
--- a/indra/llui/lldockcontrol.cpp
+++ b/indra/llui/lldockcontrol.cpp
@@ -220,10 +220,15 @@ void LLDockControl::moveDockable()
 	case TOP:
 		x = dockRect.getCenterX() - dockableRect.getWidth() / 2;
 		y = dockRect.mTop + dockableRect.getHeight();
-		// unique docking used with dock tongue, so add tongue height o the Y coordinate
+		// unique docking used with dock tongue, so add tongue height to the Y coordinate
 		if (use_tongue)
 		{
 			y += mDockTongue->getHeight();
+
+			if ( y > rootRect.mTop)
+			{
+				y = rootRect.mTop;
+			}
 		}
 
 		// check is dockable inside root view rect
@@ -257,7 +262,7 @@ void LLDockControl::moveDockable()
 	case BOTTOM:
 		x = dockRect.getCenterX() - dockableRect.getWidth() / 2;
 		y = dockRect.mBottom;
-		// unique docking used with dock tongue, so add tongue height o the Y coordinate
+		// unique docking used with dock tongue, so add tongue height to the Y coordinate
 		if (use_tongue)
 		{
 			y -= mDockTongue->getHeight();
@@ -292,9 +297,21 @@ void LLDockControl::moveDockable()
 		break;
 	}
 
-	// move dockable
-	dockableRect.setLeftTopAndSize(x, y, dockableRect.getWidth(),
-			dockableRect.getHeight());
+	S32 max_available_height = rootRect.getHeight() - mDockTongueY - mDockTongue->getHeight();
+
+	// A floater should be shrunk so it doesn't cover a part of its docking tongue and
+	// there is a space between a dockable floater and a control to which it is docked.
+	if (use_tongue && dockableRect.getHeight() >= max_available_height)
+	{
+		dockableRect.setLeftTopAndSize(x, y, dockableRect.getWidth(), max_available_height);
+		mDockableFloater->reshape(dockableRect.getWidth(), dockableRect.getHeight());
+	}
+	else
+	{
+		// move dockable
+		dockableRect.setLeftTopAndSize(x, y, dockableRect.getWidth(),
+				dockableRect.getHeight());
+	}
 	LLRect localDocableParentRect;
 	mDockableFloater->getParent()->screenRectToLocal(dockableRect,
 			&localDocableParentRect);
diff --git a/indra/llui/lllineeditor.cpp b/indra/llui/lllineeditor.cpp
index bcfed1e920..6ad1a0bac4 100644
--- a/indra/llui/lllineeditor.cpp
+++ b/indra/llui/lllineeditor.cpp
@@ -1305,7 +1305,7 @@ BOOL LLLineEditor::handleSpecialKey(KEY key, MASK mask)
 
 	// handle ctrl-uparrow if we have a history enabled line editor.
 	case KEY_UP:
-		if( mHaveHistory && ( MASK_CONTROL == mask ) )
+		if( mHaveHistory && ((mIgnoreArrowKeys == false) || ( MASK_CONTROL == mask )) )
 		{
 			if( mCurrentHistoryLine > mLineHistory.begin() )
 			{
@@ -1320,9 +1320,9 @@ BOOL LLLineEditor::handleSpecialKey(KEY key, MASK mask)
 		}
 		break;
 
-	// handle ctrl-downarrow if we have a history enabled line editor
+	// handle [ctrl]-downarrow if we have a history enabled line editor
 	case KEY_DOWN:
-		if( mHaveHistory  && ( MASK_CONTROL == mask ) )
+		if( mHaveHistory  && ((mIgnoreArrowKeys == false) || ( MASK_CONTROL == mask )) )
 		{
 			if( !mLineHistory.empty() && mCurrentHistoryLine < mLineHistory.end() - 1 )
 			{
diff --git a/indra/llui/llmenubutton.cpp b/indra/llui/llmenubutton.cpp
index ac568a83e4..eed0085273 100644
--- a/indra/llui/llmenubutton.cpp
+++ b/indra/llui/llmenubutton.cpp
@@ -175,6 +175,13 @@ void LLMenuButton::updateMenuOrigin()
 			mY = rect.mTop + mMenuHandle.get()->getRect().getHeight();
 			break;
 		}
+		case MP_TOP_RIGHT:
+		{
+			const LLRect& menu_rect = mMenuHandle.get()->getRect();
+			mX = rect.mRight - menu_rect.getWidth();
+			mY = rect.mTop + menu_rect.getHeight();
+			break;
+		}
 		case MP_BOTTOM_LEFT:
 		{
 			mX = rect.mLeft;
diff --git a/indra/llui/llmenubutton.h b/indra/llui/llmenubutton.h
index 9e91b9e99d..7b657595da 100644
--- a/indra/llui/llmenubutton.h
+++ b/indra/llui/llmenubutton.h
@@ -47,6 +47,7 @@ public:
 	typedef enum e_menu_position
 	{
 		MP_TOP_LEFT,
+		MP_TOP_RIGHT,
 		MP_BOTTOM_LEFT
 	} EMenuPosition;
 	
diff --git a/indra/llui/llscrolllistcolumn.cpp b/indra/llui/llscrolllistcolumn.cpp
index 2a4c1ca44c..696e4a2bb1 100644
--- a/indra/llui/llscrolllistcolumn.cpp
+++ b/indra/llui/llscrolllistcolumn.cpp
@@ -83,7 +83,14 @@ void LLScrollColumnHeader::draw()
 			&& (sort_column == mColumn->mSortingColumn || sort_column == mColumn->mName);
 
 	BOOL is_ascending = mColumn->mParentCtrl->getSortAscending();
-	setImageOverlay(is_ascending ? "up_arrow.tga" : "down_arrow.tga", LLFontGL::RIGHT, draw_arrow ? LLColor4::white : LLColor4::transparent);
+	if (draw_arrow)
+	{
+		setImageOverlay(is_ascending ? "up_arrow.tga" : "down_arrow.tga", LLFontGL::RIGHT, LLColor4::white);
+	}
+	else
+	{
+		setImageOverlay(LLUUID::null);
+	}
 
 	// Draw children
 	LLButton::draw();
diff --git a/indra/llui/lltextbase.cpp b/indra/llui/lltextbase.cpp
index 5721df6b36..3f213ed13e 100644
--- a/indra/llui/lltextbase.cpp
+++ b/indra/llui/lltextbase.cpp
@@ -1591,7 +1591,10 @@ void LLTextBase::setText(const LLStringExplicit &utf8str, const LLStyle::Params&
 	// appendText modifies mCursorPos...
 	appendText(text, false, input_params);
 	// ...so move cursor to top after appending text
-	startOfDoc();
+	if (!mTrackEnd)
+	{
+		startOfDoc();
+	}
 
 	onValueChange(0, getLength());
 }
diff --git a/indra/llui/llui.cpp b/indra/llui/llui.cpp
index ff9af21e54..19c42bf61a 100644
--- a/indra/llui/llui.cpp
+++ b/indra/llui/llui.cpp
@@ -1620,7 +1620,10 @@ void LLUI::initClass(const settings_map_t& settings,
 
 void LLUI::cleanupClass()
 {
-	sImageProvider->cleanUp();
+	if(sImageProvider)
+	{
+		sImageProvider->cleanUp();
+	}
 }
 
 void LLUI::setPopupFuncs(const add_popup_t& add_popup, const remove_popup_t& remove_popup,  const clear_popups_t& clear_popups)