From 6f5188b4c62102108ece3cd55013113cf47c5b4d Mon Sep 17 00:00:00 2001
From: Wang Zichong <wangzichong@deepin.org>
Date: Mon, 20 Nov 2023 18:06:20 +0800
Subject: [PATCH] fix: check and disallow folder insider folder
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检查并禁止文件夹嵌套。

Log:
---
 src/models/multipageproxymodel.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/models/multipageproxymodel.cpp b/src/models/multipageproxymodel.cpp
index f2b05ee1..7d075a5f 100644
--- a/src/models/multipageproxymodel.cpp
+++ b/src/models/multipageproxymodel.cpp
@@ -46,6 +46,7 @@ void MultipageProxyModel::commitDndOperation(const QString &dragId, const QStrin
         folder->moveItem(dragOrigPage, std::get<2>(dragOrigPos), dropOrigPage, std::get<2>(dropOrigPos));
     } else {
         if (dragId.startsWith("internal/folders/")) return; // cannot drag folder onto something
+        if (std::get<0>(dropOrigPos) != 0) return; // folder inside folder is not allowed
         if (dropId.startsWith("internal/folders/")) {
             // drop into existing folder
             m_topLevel->removeItem(dragId);