1 files changed, 84 insertions, 0 deletions
diff --git a/vcl/osx/DragActionConversion.cxx b/vcl/osx/DragActionConversion.cxx
new file mode 100644
index 0000000000..d44c3384a6
--- /dev/null
+++ b/vcl/osx/DragActionConversion.cxx
@@ -0,0 +1,84 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include "DragActionConversion.hxx"
+#include <com/sun/star/datatransfer/dnd/DNDConstants.hpp>
+
+using namespace com::sun::star::datatransfer::dnd;
+
+/* Convert office drag actions as defined in
+   <type>css::datatransfer::dnd::DNDConstants</type>
+   into system conform drag actions.
+ */
+unsigned int OfficeToSystemDragActions(sal_Int8 dragActions)
+{
+    unsigned int actions = NSDragOperationNone;
+
+    if (dragActions & DNDConstants::ACTION_COPY)
+    {
+        actions |= NSDragOperationCopy;
+    }
+
+    if (dragActions & DNDConstants::ACTION_MOVE)
+    {
+        actions |= NSDragOperationMove;
+    }
+
+    if (dragActions & DNDConstants::ACTION_LINK)
+    {
+        actions |= NSDragOperationLink;
+    }
+
+    return actions;
+}
+
+/* Convert system conform drag actions into office conform
+   drag actions as defined in
+   <type>css::datatransfer::dnd::DNDConstants</type>.
+ */
+sal_Int8 SystemToOfficeDragActions(unsigned int dragActions)
+{
+    sal_Int8 actions = DNDConstants::ACTION_NONE;
+
+    if (dragActions & NSDragOperationCopy)
+    {
+        actions |= DNDConstants::ACTION_COPY;
+    }
+
+    if (dragActions & NSDragOperationMove)
+    {
+        actions |= DNDConstants::ACTION_MOVE;
+    }
+
+    if (dragActions & NSDragOperationLink)
+    {
+        actions |= DNDConstants::ACTION_LINK;
+    }
+
+    // We map NSDragOperationGeneric to ACTION_DEFAULT to
+    // signal that we have to decide for a drag action
+    if (dragActions & NSDragOperationGeneric)
+    {
+        actions |= DNDConstants::ACTION_DEFAULT;
+    }
+
+    return actions;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */