vcl/win/dtrans/sourcecontext.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
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   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19 #pragma once
  20
  21 #include <com/sun/star/datatransfer/dnd/XDragSourceContext.hpp>
  22 #include <cppuhelper/compbase.hxx>
  23 #include <cppuhelper/basemutex.hxx>
  24
  25 #include <win/dnd_source.hxx>
  26
  27 using namespace ::com::sun::star::datatransfer;
  28 using namespace ::com::sun::star::datatransfer::dnd;
  29 using namespace ::cppu;
  30 using namespace ::com::sun::star::uno;
  31 using namespace ::com::sun::star::lang;
  32
  33 // This class fires events to XDragSourceListener implementations.
  34 // Of that interface only dragDropEnd and dropActionChanged are called.
  35 // The functions dragEnter, dragExit and dragOver are not supported
  36 // currently.
  37 // An instance of SourceContext only lives as long as the drag and drop
  38 // operation lasts.
  39 class SourceContext : public cppu::BaseMutex, public WeakComponentImplHelper<XDragSourceContext>
  40 {
  41     DragSource* m_pDragSource;
  42     Reference<XDragSource> m_dragSource;
  43     // the action ( copy, move etc)
  44     sal_Int8 m_currentAction;
  45
  46 public:
  47     SourceContext(DragSource* pSource, const Reference<XDragSourceListener>& listener);
  48     ~SourceContext() override;
  49     SourceContext(const SourceContext&) = delete;
  50     SourceContext& operator=(const SourceContext&) = delete;
  51
  52     /// @throws RuntimeException
  53     virtual void addDragSourceListener(const Reference<XDragSourceListener>& dsl);
  54     /// @throws RuntimeException
  55     virtual void removeDragSourceListener(const Reference<XDragSourceListener>& dsl);
  56     virtual sal_Int32 SAL_CALL getCurrentCursor() override;
  57     virtual void SAL_CALL setCursor(sal_Int32 cursorId) override;
  58     virtual void SAL_CALL setImage(sal_Int32 imageId) override;
  59     virtual void SAL_CALL transferablesFlavorsChanged() override;
  60
  61     // non - interface functions
  62     void fire_dragDropEnd(bool success, sal_Int8 byte);
  63     void fire_dropActionChanged(sal_Int8 dropAction, sal_Int8 userAction);
  64 };
  65
  66 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */