X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/600166152d857ccfc9df15b25bd1237b74c71d43..9df6ef77aadbd2c142bc666d3c998d9ece47f7fe:/src/views/draganddrophelper.cpp

diff --git a/src/views/draganddrophelper.cpp b/src/views/draganddrophelper.cpp
index f8ae0ad03..7b9949df4 100644
--- a/src/views/draganddrophelper.cpp
+++ b/src/views/draganddrophelper.cpp
@@ -1,67 +1,100 @@
-/***************************************************************************
- *   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 <KFileItem>
-#include <KLocale>
-#include <konq_operations.h>
-#include <KUrl>
-#include <QApplication>
-#include <QtDBus>
+#include <KIO/DropJob>
+#include <KJobWidgets>
+
+#include <QDBusConnection>
+#include <QDBusMessage>
 #include <QDropEvent>
+#include <QMimeData>
 
-KonqOperations* DragAndDropHelper::dropUrls(const KFileItem& destItem, const KUrl& destUrl, QDropEvent* event, QString& error)
-{
-    error.clear();
+QHash<QUrl, bool> DragAndDropHelper::m_urlListMatchesUrlCache;
 
-    if (!destItem.isNull() && !destItem.isWritable()) {
-        error = i18nc("@info:status", "Access denied. Could not write to <filename>%1</filename>", destUrl.pathOrUrl());
-        return 0;
+bool DragAndDropHelper::urlListMatchesUrl(const QList<QUrl> &urls, const QUrl &destUrl)
+{
+    auto iteratorResult = m_urlListMatchesUrlCache.constFind(destUrl);
+    if (iteratorResult != m_urlListMatchesUrlCache.constEnd()) {
+        return *iteratorResult;
     }
 
-    const QMimeData* mimeData = event->mimeData();
-    if (mimeData->hasFormat("application/x-kde-ark-dndextract-service") &&
-        mimeData->hasFormat("application/x-kde-ark-dndextract-path")) {
-        const QString remoteDBusClient = mimeData->data("application/x-kde-ark-dndextract-service");
-        const QString remoteDBusPath = mimeData->data("application/x-kde-ark-dndextract-path");
+    const bool destUrlMatches = std::find_if(urls.constBegin(),
+                                             urls.constEnd(),
+                                             [destUrl](const QUrl &url) {
+                                                 return url.matches(destUrl, QUrl::StripTrailingSlash);
+                                             })
+        != urls.constEnd();
 
-        QDBusMessage message = QDBusMessage::createMethodCall(remoteDBusClient, remoteDBusPath,
-                                                              "org.kde.ark.DndExtract", "extractSelectedFilesTo");
-        message.setArguments(QVariantList() << destUrl.pathOrUrl());
+    return *m_urlListMatchesUrlCache.insert(destUrl, destUrlMatches);
+}
+
+KIO::DropJob *DragAndDropHelper::dropUrls(const QUrl &destUrl, QDropEvent *event, QWidget *window)
+{
+    const QMimeData *mimeData = event->mimeData();
+    if (isArkDndMimeType(mimeData)) {
+        const QString remoteDBusClient = QString::fromUtf8(mimeData->data(arkDndServiceMimeType()));
+        const QString remoteDBusPath = QString::fromUtf8(mimeData->data(arkDndPathMimeType()));
+
+        QDBusMessage message = QDBusMessage::createMethodCall(remoteDBusClient,
+                                                              remoteDBusPath,
+                                                              QStringLiteral("org.kde.ark.DndExtract"),
+                                                              QStringLiteral("extractSelectedFilesTo"));
+        message.setArguments({destUrl.toDisplayString(QUrl::PreferLocalFile)});
         QDBusConnection::sessionBus().call(message);
-    } else if (!destItem.isNull() && (destItem.isDir() || destItem.isDesktopFile())) {
-        // Drop into a directory or a desktop-file
-        const KUrl::List urls = KUrl::List::fromMimeData(event->mimeData());
-        foreach (const KUrl& url, urls) {
-            if (url == destUrl) {
-                error = i18nc("@info:status", "A folder cannot be dropped into itself");
-                return 0;
-            }
+    } else {
+        if (urlListMatchesUrl(event->mimeData()->urls(), destUrl)) {
+            return nullptr;
         }
 
-        return KonqOperations::doDrop(destItem, destUrl, event, QApplication::activeWindow(), QList<QAction*>());
+        // TODO: remove this check once Qt is fixed so that it doesn't emit a QDropEvent on Wayland
+        // when we called QDragMoveEvent::ignore()
+        // https://codereview.qt-project.org/c/qt/qtwayland/+/541750
+        KFileItem item(destUrl);
+        // KFileItem(QUrl) only stat local URLs, so we always allow dropping on non-local URLs
+        if (!item.isLocalFile() || supportsDropping(item)) {
+            // Drop into a directory or a desktop-file
+            KIO::DropJob *job = KIO::drop(event, destUrl);
+            KJobWidgets::setWindow(job, window);
+            return job;
+        }
+    }
+
+    return nullptr;
+}
+
+bool DragAndDropHelper::supportsDropping(const KFileItem &destItem)
+{
+    return (destItem.isDir() && destItem.isWritable()) || destItem.isDesktopFile();
+}
+
+void DragAndDropHelper::updateDropAction(QDropEvent *event, const QUrl &destUrl)
+{
+    if (urlListMatchesUrl(event->mimeData()->urls(), destUrl)) {
+        event->setDropAction(Qt::IgnoreAction);
+        event->ignore();
+    }
+    KFileItem item(destUrl);
+    if (!item.isLocalFile() || supportsDropping(item)) {
+        event->setDropAction(event->proposedAction());
+        event->accept();
     } else {
-        return KonqOperations::doDrop(KFileItem(), destUrl, event, QApplication::activeWindow(), QList<QAction*>());
+        event->setDropAction(Qt::IgnoreAction);
+        event->ignore();
     }
+}
 
-    return 0;
+void DragAndDropHelper::clearUrlListMatchesUrlCache()
+{
+    DragAndDropHelper::m_urlListMatchesUrlCache.clear();
 }
 
+bool DragAndDropHelper::isArkDndMimeType(const QMimeData *mimeData)
+{
+    return mimeData->hasFormat(arkDndServiceMimeType()) && mimeData->hasFormat(arkDndPathMimeType());
+}