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| -rw-r--r-- | vcl/inc/dndeventdispatcher.hxx | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/vcl/inc/dndeventdispatcher.hxx b/vcl/inc/dndeventdispatcher.hxx new file mode 100644 index 000000000..9756056da --- /dev/null +++ b/vcl/inc/dndeventdispatcher.hxx @@ -0,0 +1,112 @@ +/* -*- 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: */ |