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+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_VCL_INC_DNDEVENTDISPATCHER_HXX
+#define INCLUDED_VCL_INC_DNDEVENTDISPATCHER_HXX
+
+#include <com/sun/star/datatransfer/dnd/XDropTargetListener.hpp>
+#include <com/sun/star/datatransfer/dnd/XDropTargetDragContext.hpp>
+
+#include <com/sun/star/datatransfer/dnd/XDragGestureListener.hpp>
+#include <cppuhelper/implbase.hxx>
+#include <vcl/window.hxx>
+#include <mutex>
+
+class DNDEventDispatcher final : public ::cppu::WeakImplHelper<
+ css::datatransfer::dnd::XDropTargetListener,
+ css::datatransfer::dnd::XDropTargetDragContext,
+ css::datatransfer::dnd::XDragGestureListener >
+{
+ VclPtr<vcl::Window> m_pTopWindow;
+
+ VclPtr<vcl::Window> m_pCurrentWindow;
+ void designate_currentwindow(vcl::Window *pWindow);
+ DECL_LINK(WindowEventListener, VclWindowEvent&, void);
+
+ std::recursive_mutex m_aMutex;
+ css::uno::Sequence< css::datatransfer::DataFlavor > m_aDataFlavorList;
+
+ vcl::Window* findTopLevelWindow(Point location);
+ /*
+ * fire the events on the dnd listener container of the specified window
+ */
+
+ /// @throws css::uno::RuntimeException
+ static sal_Int32 fireDragEnterEvent( vcl::Window *pWindow, const css::uno::Reference< css::datatransfer::dnd::XDropTargetDragContext >& xContext,
+ const sal_Int8 nDropAction, const Point& rLocation, const sal_Int8 nSourceAction,
+ const css::uno::Sequence< css::datatransfer::DataFlavor >& aFlavorList );
+
+ /// @throws css::uno::RuntimeException
+ static sal_Int32 fireDragOverEvent( vcl::Window *pWindow, const css::uno::Reference< css::datatransfer::dnd::XDropTargetDragContext >& xContext,
+ const sal_Int8 nDropAction, const Point& rLocation, const sal_Int8 nSourceAction );
+
+ /// @throws css::uno::RuntimeException
+ static sal_Int32 fireDragExitEvent( vcl::Window *pWindow );
+
+ /// @throws css::uno::RuntimeException
+ static sal_Int32 fireDropActionChangedEvent( vcl::Window *pWindow, const css::uno::Reference< css::datatransfer::dnd::XDropTargetDragContext >& xContext,
+ const sal_Int8 nDropAction, const Point& rLocation, const sal_Int8 nSourceAction );
+
+ /// @throws css::uno::RuntimeException
+ static sal_Int32 fireDropEvent( vcl::Window *pWindow, const css::uno::Reference< css::datatransfer::dnd::XDropTargetDropContext >& xContext,
+ const sal_Int8 nDropAction, const Point& rLocation, const sal_Int8 nSourceAction,
+ const css::uno::Reference< css::datatransfer::XTransferable >& xTransferable );
+
+ /// @throws css::uno::RuntimeException
+ static sal_Int32 fireDragGestureEvent( vcl::Window *pWindow, const css::uno::Reference< css::datatransfer::dnd::XDragSource >& xSource,
+ const css::uno::Any& event, const Point& rOrigin, const sal_Int8 nDragAction );
+
+public:
+
+ DNDEventDispatcher( vcl::Window * pTopWindow );
+ virtual ~DNDEventDispatcher() override;
+
+ /*
+ * XDropTargetDragContext
+ */
+
+ virtual void SAL_CALL acceptDrag( sal_Int8 dropAction ) override;
+ virtual void SAL_CALL rejectDrag() override;
+
+ /*
+ * XDropTargetListener
+ */
+
+ virtual void SAL_CALL drop( const css::datatransfer::dnd::DropTargetDropEvent& dtde ) override;
+ virtual void SAL_CALL dragEnter( const css::datatransfer::dnd::DropTargetDragEnterEvent& dtdee ) override;
+ virtual void SAL_CALL dragExit( const css::datatransfer::dnd::DropTargetEvent& dte ) override;
+ virtual void SAL_CALL dragOver( const css::datatransfer::dnd::DropTargetDragEvent& dtde ) override;
+ virtual void SAL_CALL dropActionChanged( const css::datatransfer::dnd::DropTargetDragEvent& dtde ) override;
+
+ /*
+ * XDragGestureListener
+ */
+
+ virtual void SAL_CALL dragGestureRecognized( const css::datatransfer::dnd::DragGestureEvent& dge ) override;
+
+ /*
+ * XEventListener
+ */
+
+ virtual void SAL_CALL disposing( const css::lang::EventObject& eo ) override;
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */