From f3c94c85ac99e187644f5dcc14f610cd4f159745 Mon Sep 17 00:00:00 2001
From: zccrs <zccrs@live.com>
Date: Mon, 15 Jul 2019 15:30:06 +0800
Subject: [PATCH] fix: crash at AppDragWidget

mark m_drag to nullptr when the app drag widget destroyed

https://github.com/linuxdeepin/internal-discussion/issues/1936
---
 frame/item/appitem.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/frame/item/appitem.cpp b/frame/item/appitem.cpp
index 421402830..865b92541 100644
--- a/frame/item/appitem.cpp
+++ b/frame/item/appitem.cpp
@@ -475,6 +475,7 @@ void AppItem::startDrag()
     // handle drag finished here
     connect(m_drag->appDragWidget(), &AppDragWidget::destroyed, this, [=] {
         m_dragging = false;
+        m_drag.clear();
         setVisible(true);
         update();
     });