X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/2e6450da1cc62c0c8ad6f868becf0fa4a1f32022..d0c71a1435bc9d:/src/views/draganddrophelper.cpp

diff --git a/src/views/draganddrophelper.cpp b/src/views/draganddrophelper.cpp
index e944227df..2466b2ab7 100644
--- a/src/views/draganddrophelper.cpp
+++ b/src/views/draganddrophelper.cpp
@@ -1,40 +1,35 @@
-/***************************************************************************
- *   Copyright (C) 2007-2011 by Peter Penz <peter.penz19@gmail.com>        *
- *   Copyright (C) 2007 by David Faure <faure@kde.org>                     *
- *                                                                         *
- *   This program is free software; you can redistribute it and/or modify  *
- *   it under the terms of the GNU General Public License as published by  *
- *   the Free Software Foundation; either version 2 of the License, or     *
- *   (at your option) any later version.                                   *
- *                                                                         *
- *   This program is distributed in the hope that it will be useful,       *
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
- *   GNU General Public License for more details.                          *
- *                                                                         *
- *   You should have received a copy of the GNU General Public License     *
- *   along with this program; if not, write to the                         *
- *   Free Software Foundation, Inc.,                                       *
- *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
- ***************************************************************************/
+/*
+ * SPDX-FileCopyrightText: 2007-2011 Peter Penz <peter.penz19@gmail.com>
+ * SPDX-FileCopyrightText: 2007 David Faure <faure@kde.org>
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
 
 #include "draganddrophelper.h"
 
-#include <QUrl>
-#include <QDBusMessage>
+#include <KIO/DropJob>
+#include <KJobWidgets>
+
 #include <QDBusConnection>
+#include <QDBusMessage>
 #include <QDropEvent>
 #include <QMimeData>
 
-#include <KIO/DropJob>
-#include <KJobWidgets>
-
+QHash<QUrl, bool> DragAndDropHelper::m_urlListMatchesUrlCache;
 
 bool DragAndDropHelper::urlListMatchesUrl(const QList<QUrl>& urls, const QUrl& destUrl)
 {
-    return std::find_if(urls.constBegin(), urls.constEnd(), [destUrl](const QUrl& url) {
-        return url.matches(destUrl, QUrl::StripTrailingSlash);
-    }) != urls.constEnd();
+    auto iteratorResult = m_urlListMatchesUrlCache.constFind(destUrl);
+    if (iteratorResult != m_urlListMatchesUrlCache.constEnd()) {
+        return *iteratorResult;
+    }
+
+    const bool destUrlMatches =
+        std::find_if(urls.constBegin(), urls.constEnd(), [destUrl](const QUrl& url) {
+            return url.matches(destUrl, QUrl::StripTrailingSlash);
+        }) != urls.constEnd();
+
+    return *m_urlListMatchesUrlCache.insert(destUrl, destUrlMatches);
 }
 
 KIO::DropJob* DragAndDropHelper::dropUrls(const QUrl& destUrl, QDropEvent* event, QWidget* window)
@@ -63,3 +58,8 @@ KIO::DropJob* DragAndDropHelper::dropUrls(const QUrl& destUrl, QDropEvent* event
     return nullptr;
 }
 
+void DragAndDropHelper::clearUrlListMatchesUrlCache()
+{
+    DragAndDropHelper::m_urlListMatchesUrlCache.clear();
+}
+