Position-based binary searching can only be used if the view has been attached

to a window already. If not, we fall back to using the BList-based search.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28696 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/kits/interface/ListView.cpp

@@ -733,6 +733,14 @@ BListView::ItemAt(int32 index) const
 int32
 BListView::IndexOf(BListItem *item) const
 {
+	if (Window()) {
+		if (item != NULL) {
+			int32 index = IndexOf(BPoint(0.0, item->Top()));
+			if (index >= 0 && fList.ItemAt(index) == item)
+				return index;
+			return -1;
+		}
+	}
 	return fList.IndexOf(item);
 }
 
@@ -779,7 +787,7 @@ BListView::LastItem() const
 bool
 BListView::HasItem(BListItem *item) const
 {
-	return fList.HasItem(item);
+	return IndexOf(item) != -1;
 }
 
 // CountItems