X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/a5cf21ff06aff44cde563eaceae3c6cef452ee48..e9bd295b:/src/views/draganddrophelper.h

diff --git a/src/views/draganddrophelper.h b/src/views/draganddrophelper.h
index 3cb506c43..5f9d3754b 100644
--- a/src/views/draganddrophelper.h
+++ b/src/views/draganddrophelper.h
@@ -1,102 +1,56 @@
-/***************************************************************************
- *   Copyright (C) 2007 by Peter Penz <peter.penz@gmx.at>                  *
- *   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
+ */
 
 #ifndef DRAGANDDROPHELPER_H
 #define DRAGANDDROPHELPER_H
 
-#include "libdolphin_export.h"
-#include <QObject>
-#include <QPixmap>
+#include "dolphin_export.h"
+
+#include <QList>
+#include <QUrl>
 
-class DolphinViewController;
-class KFileItem;
-class KUrl;
 class QDropEvent;
-class QAbstractItemView;
-class QMimeData;
 class QWidget;
+namespace KIO { class DropJob; }
 
-/**
- * @brief Helper class for having a common drag and drop behavior.
- *
- * The class is used by DolphinIconsView, DolphinDetailsView,
- * DolphinColumnView and PanelTreeView to have a consistent
- * drag and drop behavior between all views.
- */
-class LIBDOLPHINPRIVATE_EXPORT DragAndDropHelper : public QObject
+class DOLPHIN_EXPORT DragAndDropHelper
 {
-    Q_OBJECT
-
 public:
-    static DragAndDropHelper& instance();
-
     /**
-     * Returns true, if Dolphin supports the dragging of
-     * the given mime data.
+     * Handles the dropping of URLs to the given destination. A context menu
+     * with the options 'Move Here', 'Copy Here', 'Link Here' and 'Cancel' is
+     * offered to the user. The drag destination must represent a directory or
+     * a desktop-file, otherwise the dropping gets ignored.
+     *
+     * @param destUrl   URL of the item destination. Is used only if destItem::isNull()
+     *                  is true.
+     * @param event     Drop event.
+     * @param window    Widget where the drop happened, will be used as parent of the drop menu.
+     * @return          KIO::DropJob pointer or null in case the destUrl is contained
+     *                  in the mimeData url list.
      */
-    bool isMimeDataSupported(const QMimeData* mimeData) const;
+    static KIO::DropJob* dropUrls(const QUrl& destUrl,
+                                  QDropEvent* event,
+                                  QWidget *window);
 
     /**
-     * Creates a drag object for the view \a itemView for all selected items.
+     * @return True if destUrl is contained in the urls parameter.
      */
-    void startDrag(QAbstractItemView* itemView,
-                   Qt::DropActions supportedActions,
-                   DolphinViewController* dolphinViewController = 0);
+    static bool urlListMatchesUrl(const QList<QUrl>& urls, const QUrl& destUrl);
 
     /**
-     * Returns true if and only if the view \a itemView was the last view to 
-     * be passed to startDrag(...), and that drag is still in progress.
+     * clear the internal cache.
      */
-    bool isDragSource(QAbstractItemView* itemView) const;
-
-    /**
-     * Handles the dropping of URLs to the given
-     * destination. A context menu with the options
-     * 'Move Here', 'Copy Here', 'Link Here' and
-     * 'Cancel' is offered to the user.
-     * @param destItem  Item of the destination (can be null, see KFileItem::isNull()).
-     * @param destPath  Path of the destination.
-     * @param event     Drop event.
-     * @param widget    Source widget where the dragging has been started.
-     */
-    void dropUrls(const KFileItem& destItem,
-                  const KUrl& destPath,
-                  QDropEvent* event,
-                  QWidget* widget);
-signals:
-    void errorMessage(const QString& msg);
-
+    static void clearUrlListMatchesUrlCache();
 private:
-    DragAndDropHelper();
-    
     /**
-     * Creates a pixmap the contains the all icons of the items
-     * that are dragged.
+     * Stores the results of the expensive checks made in urlListMatchesUrl.
      */
-    QPixmap createDragPixmap(QAbstractItemView* itemView) const;
-    
-    // The last view passed in startDrag(...), or 0 if
-    // no startDrag(...) initiated drag is in progress.
-    QAbstractItemView *m_dragSource;
-
-    friend class DragAndDropHelperSingleton;
+    static QHash<QUrl, bool> m_urlListMatchesUrlCache;
 };
 
 #endif