From 5b996654cf13468285d2f7bbab0b79546486ef49 Mon Sep 17 00:00:00 2001
From: Le Tan <tamlokveer@gmail.com>
Date: Mon, 12 Nov 2018 20:12:30 +0800
Subject: [PATCH] DirectoryTree: warn if user does not drop on a folder item

---
 src/vdirectorytree.cpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/vdirectorytree.cpp b/src/vdirectorytree.cpp
index 3ad3b6f7..23a4eb1c 100644
--- a/src/vdirectorytree.cpp
+++ b/src/vdirectorytree.cpp
@@ -1245,6 +1245,17 @@ bool VDirectoryTree::dropMimeData(QTreeWidgetItem *p_parent,
 {
     Q_UNUSED(p_index);
 
+    if (!p_parent) {
+        VUtils::showMessage(QMessageBox::Warning,
+                            tr("Warning"),
+                            tr("Please drop it on a folder item."),
+                            "",
+                            QMessageBox::Ok,
+                            QMessageBox::Ok,
+                            this);
+        return false;
+    }
+
     if (p_data->hasFormat(ClipboardConfig::c_format)) {
         VDirectory *dir = getVDirectory(p_parent);
         if (!dir) {