#192024

r=brade, sr=kin, a=asa
domSelection can be null if there is no presShell - don't dereference it

editor/composer/src/nsComposerCommandsUpdater.cpp

@@ -368,13 +368,15 @@ nsComposerCommandsUpdater::SelectionIsCollapsed()
   if (!mDOMWindow) return PR_TRUE;
 
   nsCOMPtr<nsISelection> domSelection;
-  if (NS_SUCCEEDED(mDOMWindow->GetSelection(getter_AddRefs(domSelection))))
+  if (NS_SUCCEEDED(mDOMWindow->GetSelection(getter_AddRefs(domSelection))) && domSelection)
   {
     PRBool selectionCollapsed = PR_FALSE;
     domSelection->GetIsCollapsed(&selectionCollapsed);
     return selectionCollapsed;
   }
 
+  NS_WARNING("nsComposerCommandsUpdater::SelectionIsCollapsed - no domSelection");
+
   return PR_FALSE;
 }