#2696 The viewer crashes on gestures floater (fix navigation)

1 files changed, 43 insertions, 44 deletions

diff --git a/indra/llui/llscrolllistctrl.cpp b/indra/llui/llscrolllistctrl.cpp
index ddd1d81cb4..8093536868 100644
--- a/indra/llui/llscrolllistctrl.cpp
+++ b/indra/llui/llscrolllistctrl.cpp
@@ -1105,38 +1105,32 @@ S32 LLScrollListCtrl::getItemIndex( const LLUUID& target_id ) const
 
 void LLScrollListCtrl::selectPrevItem( bool extend_selection)
 {
+    updateSort();
+
     LLScrollListItem* prev_item = NULL;
 
-    if (!getFirstSelected())
-    {
-        // select last item
-        selectNthItem(getItemCount() - 1);
-    }
-    else
+    for (LLScrollListItem* item : mItemList)
     {
-        updateSort();
-
-        item_list::iterator iter;
-        for (LLScrollListItem* cur_item : mItemList)
+        if (item->getSelected())
         {
-            if (cur_item->getSelected())
-            {
-                if (prev_item)
-                {
-                    selectItem(prev_item, cur_item->getSelectedCell(), !extend_selection);
-                }
-                else
-                {
-                    reportInvalidInput();
-                }
-                break;
-            }
+            break;
+        }
 
-            // don't allow navigation to disabled elements
-            prev_item = cur_item->getEnabled() ? cur_item : prev_item;
+        // don't allow navigation to disabled elements
+        if (item->getEnabled())
+        {
+            prev_item = item;
         }
     }
 
+    if (!prev_item)
+    {
+        reportInvalidInput();
+        return;
+    }
+
+    selectItem(prev_item, prev_item->getSelectedCell(), !extend_selection);
+
     if ((mCommitOnSelectionChange || mCommitOnKeyboardMovement))
     {
         commitIfChanged();
@@ -1147,36 +1141,41 @@ void LLScrollListCtrl::selectPrevItem( bool extend_selection)
 
 void LLScrollListCtrl::selectNextItem( bool extend_selection)
 {
+    updateSort();
+
+    LLScrollListItem* current_item = NULL;
     LLScrollListItem* next_item = NULL;
 
-    if (!getFirstSelected())
-    {
-        selectFirstItem();
-    }
-    else
+    for (LLScrollListItem* item : mItemList)
     {
-        updateSort();
-
-        for (LLScrollListItem* cur_item : mItemList)
+        if (current_item)
         {
-            if (cur_item->getSelected())
+            if (item->getEnabled())
             {
-                if (next_item)
-                {
-                    selectItem(next_item, cur_item->getSelectedCell(), !extend_selection);
-                }
-                else
-                {
-                    reportInvalidInput();
-                }
+                next_item = item;
                 break;
             }
-
-            // don't allow navigation to disabled items
-            next_item = cur_item->getEnabled() ? cur_item : next_item;
         }
+        else if (item->getSelected())
+        {
+            current_item = item;
+            next_item = NULL;
+            continue;
+        }
+        else if (!next_item && item->getEnabled())
+        {
+            next_item = item;
+        }
+    }
+
+    if (!next_item)
+    {
+        reportInvalidInput();
+        return;
     }
 
+    selectItem(next_item, next_item->getSelectedCell(), !extend_selection);
+
     if (mCommitOnKeyboardMovement)
     {
         onCommit();