dtrans/source/win32/dnd/source.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/.
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   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
  20 #ifndef INCLUDED_DTRANS_SOURCE_WIN32_DND_SOURCE_HXX
  21 #define INCLUDED_DTRANS_SOURCE_WIN32_DND_SOURCE_HXX
  22
  23 #include <com/sun/star/datatransfer/dnd/XDragSource.hpp>
  24 #include <com/sun/star/datatransfer/dnd/XDragSourceContext.hpp>
  25 #include <com/sun/star/lang/XInitialization.hpp>
  26 #include <osl/mutex.hxx>
  27 #include <cppuhelper/compbase.hxx>
  28 #include <com/sun/star/lang/XServiceInfo.hpp>
  29 #include "globals.hxx"
  30 #include <oleidl.h>
  31
  32 #include <systools/win32/comtools.hxx>
  33
  34 namespace com { namespace sun { namespace star { namespace uno {
  35     class XComponentContext;
  36 } } } }
  37
  38 using namespace ::com::sun::star::lang;
  39 using namespace ::com::sun::star::uno;
  40 using namespace cppu;
  41 using namespace osl;
  42 using namespace ::com::sun::star::datatransfer;
  43 using namespace ::com::sun::star::datatransfer::dnd;
  44
  45 class SourceContext;
  46 // RIGHT MOUSE BUTTON drag and drop not supported currently.
  47 // ALT modifier is considered to effect a user selection of effects
  48 class DragSource:
  49       public MutexDummy,
  50       public WeakComponentImplHelper<XDragSource, XInitialization, XServiceInfo>,
  51       public IDropSource
  52
  53 {
  54     Reference<XComponentContext> m_xContext;
  55     HWND m_hAppWindow;
  56
  57     // The mouse button that set off the drag and drop operation
  58     short m_MouseButton;
  59
  60     // First starting a new drag and drop thread if
  61     // the last one has finished
  62     void StartDragImpl(
  63         const DragGestureEvent& trigger,
  64         sal_Int8 sourceActions,
  65         sal_Int32 cursor,
  66         sal_Int32 image,
  67         const Reference<XTransferable >& trans,
  68         const Reference<XDragSourceListener >& listener);
  69
  70 public:
  71     long m_RunningDndOperationCount;
  72
  73 public:
  74     // only valid for one dnd operation
  75     // the thread ID of the thread which created the window
  76     DWORD m_threadIdWindow;
  77     // The context notifies the XDragSourceListener s
  78     Reference<XDragSourceContext>   m_currentContext;
  79
  80     // the wrapper for the Transferable ( startDrag)
  81     IDataObjectPtr m_spDataObject;
  82
  83     sal_Int8 m_sourceActions;
  84
  85 public:
  86     explicit DragSource(const Reference<XComponentContext>& rxContext);
  87     virtual ~DragSource() override;
  88     DragSource(const DragSource&) = delete;
  89     DragSource &operator= ( const DragSource&) = delete;
  90
  91   // XInitialization
  92     virtual void SAL_CALL initialize( const Sequence< Any >& aArguments ) override;
  93
  94     // XDragSource
  95     virtual sal_Bool SAL_CALL isDragImageSupported(  ) override;
  96     virtual sal_Int32 SAL_CALL getDefaultCursor( sal_Int8 dragAction ) override;
  97     virtual void SAL_CALL startDrag( const DragGestureEvent& trigger,
  98                                      sal_Int8 sourceActions,
  99                                      sal_Int32 cursor,
 100                                      sal_Int32 image,
 101                                      const Reference<XTransferable >& trans,
 102                                      const Reference<XDragSourceListener >& listener ) override;
 103
 104     // XServiceInfo
 105     virtual OUString SAL_CALL getImplementationName(  ) override;
 106     virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
 107     virtual Sequence< OUString > SAL_CALL getSupportedServiceNames(  ) override;
 108
 109     virtual HRESULT STDMETHODCALLTYPE QueryInterface(
 110             /* [in] */ REFIID riid,
 111             /* [iid_is][out] */ void __RPC_FAR *__RPC_FAR *ppvObject) override;
 112
 113     virtual ULONG STDMETHODCALLTYPE AddRef( ) override;
 114
 115     virtual ULONG STDMETHODCALLTYPE Release( ) override;
 116
 117     // IDropSource
 118     virtual HRESULT STDMETHODCALLTYPE QueryContinueDrag(
 119         /* [in] */ BOOL fEscapePressed,
 120         /* [in] */ DWORD grfKeyState) override;
 121
 122     virtual HRESULT STDMETHODCALLTYPE GiveFeedback(
 123         /* [in] */ DWORD dwEffect) override;
 124
 125 };
 126
 127 #endif
 128
 129 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */