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+/** @file
+ * Drag and Drop definitions - Common header for host service and guest clients.
+ */
+
+/*
+ * Copyright (C) 2018-2023 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.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, in version 3 of the
+ * License.
+ *
+ * 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, see <https://www.gnu.org/licenses>.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+ * in the VirtualBox distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+ */
+
+#ifndef VBOX_INCLUDED_GuestHost_DragAndDropDefs_h
+#define VBOX_INCLUDED_GuestHost_DragAndDropDefs_h
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+
+#include <iprt/types.h>
+
+/*
+ * The mode of operations.
+ */
+#define VBOX_DRAG_AND_DROP_MODE_OFF 0
+#define VBOX_DRAG_AND_DROP_MODE_HOST_TO_GUEST 1
+#define VBOX_DRAG_AND_DROP_MODE_GUEST_TO_HOST 2
+#define VBOX_DRAG_AND_DROP_MODE_BIDIRECTIONAL 3
+
+#define VBOX_DND_ACTION_IGNORE UINT32_C(0)
+#define VBOX_DND_ACTION_COPY RT_BIT_32(0)
+#define VBOX_DND_ACTION_MOVE RT_BIT_32(1)
+#define VBOX_DND_ACTION_LINK RT_BIT_32(2)
+
+/** A single DnD action. */
+typedef uint32_t VBOXDNDACTION;
+/** A list of (OR'ed) DnD actions. */
+typedef uint32_t VBOXDNDACTIONLIST;
+
+#define hasDnDCopyAction(a) ((a) & VBOX_DND_ACTION_COPY)
+#define hasDnDMoveAction(a) ((a) & VBOX_DND_ACTION_MOVE)
+#define hasDnDLinkAction(a) ((a) & VBOX_DND_ACTION_LINK)
+
+#define isDnDIgnoreAction(a) ((a) == VBOX_DND_ACTION_IGNORE)
+#define isDnDCopyAction(a) ((a) == VBOX_DND_ACTION_COPY)
+#define isDnDMoveAction(a) ((a) == VBOX_DND_ACTION_MOVE)
+#define isDnDLinkAction(a) ((a) == VBOX_DND_ACTION_LINK)
+
+/** @def VBOX_DND_FORMATS_DEFAULT
+ * Default drag'n drop formats.
+ * Note: If you add new entries here, make sure you test those
+ * with all supported guest OSes!
+ */
+#define VBOX_DND_FORMATS_DEFAULT \
+ "text/uri-list", \
+ /* Text. */ \
+ "text/html", \
+ "text/plain;charset=utf-8", \
+ "text/plain;charset=utf-16", \
+ "text/plain", \
+ "text/richtext", \
+ "UTF8_STRING", \
+ "TEXT", \
+ "STRING", \
+ /* OpenOffice formats. */ \
+ /* See: https://wiki.openoffice.org/wiki/Documentation/DevGuide/OfficeDev/Common_Application_Features#OpenOffice.org_Clipboard_Data_Formats */ \
+ "application/x-openoffice-embed-source-xml;windows_formatname=\"Star Embed Source (XML)\"", \
+ "application/x-openoffice;windows_formatname=\"Bitmap\""
+
+/**
+ * Enumeration for keeping a DnD state.
+ */
+typedef enum
+{
+ VBOXDNDSTATE_UNKNOWN = 0,
+ VBOXDNDSTATE_ENTERED,
+ VBOXDNDSTATE_LEFT,
+ VBOXDNDSTATE_QUERY_FORMATS,
+ VBOXDNDSTATE_QUERY_STATUS,
+ VBOXDNDSTATE_DRAGGING,
+ VBOXDNDSTATE_DROP_STARTED,
+ VBOXDNDSTATE_DROP_ENDED,
+ VBOXDNDSTATE_CANCELLED,
+ VBOXDNDSTATE_ERROR
+} VBOXDNDSTATE;
+/** Pointer to a DnD state. */
+typedef VBOXDNDSTATE *PVBOXDNDSTATE;
+
+#endif /* !VBOX_INCLUDED_GuestHost_DragAndDropDefs_h */
+