CHUI-53 FIXED vertical scroll bar in inventory floater to appear when horizontal scroll bar hides last item in folder view.

Added a scroll container which provides the information about the height of currently displayed folder view contents. It is used for updating vertical scroll bar visibility in inventory panel.

1 files changed, 11 insertions, 4 deletions

diff --git a/indra/llui/llscrollcontainer.cpp b/indra/llui/llscrollcontainer.cpp
index 20bed050ad..9b7e30bb04 100644
--- a/indra/llui/llscrollcontainer.cpp
+++ b/indra/llui/llscrollcontainer.cpp
@@ -389,10 +389,17 @@ void LLScrollContainer::calcVisibleSize( S32 *visible_width, S32 *visible_height
 		{
 			*show_h_scrollbar = TRUE;
 			*visible_height -= scrollbar_size;
-			// Note: Do *not* recompute *show_v_scrollbar here because with
-			// the (- scrollbar_size) we just did we will always add a vertical scrollbar
-			// even if the height of the items is actually less than the visible size.
-			// Fear not though: there's enough calcVisibleSize() calls to add a vertical slider later.
+
+			// The view inside the scroll container should not be extended
+			// to container's full height to ensure the correct computation
+			// of *show_v_scrollbar after subtracting horizontal scrollbar_size.
+
+			// Must retest now that visible_height has changed
+			if( !*show_v_scrollbar && ((doc_height - *visible_height) > 1) )
+			{
+				*show_v_scrollbar = TRUE;
+				*visible_width -= scrollbar_size;
+			}
 		}
 	}
 }