1 files changed, 23 insertions, 12 deletions

diff --git a/indra/llui/lltabcontainer.cpp b/indra/llui/lltabcontainer.cpp
index 5fc2cc350d..6f895ed939 100644
--- a/indra/llui/lltabcontainer.cpp
+++ b/indra/llui/lltabcontainer.cpp
@@ -506,8 +506,8 @@ void LLTabContainer::draw()
 		}
 	}
 
-	mPrevArrowBtn->setFlashing(FALSE);
-	mNextArrowBtn->setFlashing(FALSE);
+	mPrevArrowBtn->setFlashing(false);
+	mNextArrowBtn->setFlashing(false);
 }
 
 
@@ -1209,7 +1209,11 @@ void LLTabContainer::removeTabPanel(LLPanel* child)
 				update_images(mTabList[mTabList.size()-2], mLastTabParams, getTabPosition());
 			}
 
-			removeChild( tuple->mButton );
+			if (!getTabsHidden())
+			{
+				// We need to remove tab buttons only if the tabs are not hidden.
+				removeChild( tuple->mButton );
+			}
  			delete tuple->mButton;
 
  			removeChild( tuple->mTabPanel );
@@ -1480,13 +1484,21 @@ BOOL LLTabContainer::setTab(S32 which)
 		{
 			LLTabTuple* tuple = *iter;
 			BOOL is_selected = ( tuple == selected_tuple );
-			tuple->mButton->setUseEllipses(mUseTabEllipses);
-			tuple->mButton->setHAlign(mFontHalign);
-			tuple->mTabPanel->setVisible( is_selected );
-// 			tuple->mTabPanel->setFocus(is_selected); // not clear that we want to do this here.
-			tuple->mButton->setToggleState( is_selected );
-			// RN: this limits tab-stops to active button only, which would require arrow keys to switch tabs
-			tuple->mButton->setTabStop( is_selected );
+            
+            // Although the selected tab must be complete, we may have hollow LLTabTuple tucked in the list
+            if (tuple->mButton)
+            {
+                tuple->mButton->setUseEllipses(mUseTabEllipses);
+                tuple->mButton->setHAlign(mFontHalign);
+                tuple->mButton->setToggleState( is_selected );
+                // RN: this limits tab-stops to active button only, which would require arrow keys to switch tabs
+                tuple->mButton->setTabStop( is_selected );
+            }
+            if (tuple->mTabPanel)
+            {
+                tuple->mTabPanel->setVisible( is_selected );
+                //tuple->mTabPanel->setFocus(is_selected); // not clear that we want to do this here.
+            }
 			
 			if (is_selected)
 			{
@@ -1557,8 +1569,7 @@ BOOL LLTabContainer::selectTabByName(const std::string& name)
 	LLPanel* panel = getPanelByName(name);
 	if (!panel)
 	{
-		llwarns << "LLTabContainer::selectTabByName("
-			<< name << ") failed" << llendl;
+		llwarns << "LLTabContainer::selectTabByName(" << name << ") failed" << llendl;
 		return FALSE;
 	}