fix crash during drag & drop if the file item is not available (thanks to John Tapsell for the original fix in dolphiniconsview.cpp!)

svn path=/trunk/KDE/kdebase/apps/; revision=742703

1 files changed, 7 insertions, 4 deletions

diff --git a/src/dolphincolumnwidget.cpp b/src/dolphincolumnwidget.cpp
index 1a7f712f3..677215972 100644
--- a/src/dolphincolumnwidget.cpp
+++ b/src/dolphincolumnwidget.cpp
@@ -227,10 +227,13 @@ void DolphinColumnWidget::dragMoveEvent(QDragMoveEvent* event)
     // TODO: remove this code when the issue #160611 is solved in Qt 4.4
     const QModelIndex index = indexAt(event->pos());
     setDirtyRegion(m_dropRect);
-    if (itemForIndex(index).isDir()) {
-        m_dropRect = visualRect(index);
-    } else {
-        m_dropRect.setSize(QSize()); // set as invalid
+
+    m_dropRect.setSize(QSize()); // set as invalid
+    if (index.isValid()) {
+        const KFileItem item = itemForIndex(index);
+        if (!item.isNull() && item.isDir()) {
+            m_dropRect = visualRect(index);
+        }
     }
     setDirtyRegion(m_dropRect);
 }