| 1 | /* $Id: VBoxDnD.h 49947 2013-12-17 08:40:37Z vboxsync $ */
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| 2 | /** @file
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| 3 | * VBoxDnD.h - Windows-specific bits of the drag'n drop service.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2013 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | */
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| 17 |
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| 18 | #ifndef __VBOXTRAYDND__H
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| 19 | #define __VBOXTRAYDND__H
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| 20 |
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| 21 | #include <iprt/cpp/mtlist.h>
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| 22 | #include <iprt/cpp/ministring.h>
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| 23 |
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| 24 | int VBoxDnDInit (const VBOXSERVICEENV *pEnv, void **ppInstance, bool *pfStartThread);
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| 25 | unsigned __stdcall VBoxDnDThread (void *pInstance);
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| 26 | void VBoxDnDStop (const VBOXSERVICEENV *pEnv, void *pInstance);
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| 27 | void VBoxDnDDestroy (const VBOXSERVICEENV *pEnv, void *pInstance);
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| 28 |
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| 29 | class VBoxDnDWnd;
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| 30 |
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| 31 | class VBoxDnDDataObject : public IDataObject
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| 32 | {
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| 33 | public:
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| 34 |
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| 35 | enum Status
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| 36 | {
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| 37 | Uninitialized = 0,
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| 38 | Initialized,
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| 39 | Dropping,
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| 40 | Dropped,
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| 41 | Aborted
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| 42 | };
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| 43 |
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| 44 | public:
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| 45 |
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| 46 | VBoxDnDDataObject(FORMATETC *pFormatEtc = NULL, STGMEDIUM *pStgMed = NULL, ULONG cFormats = 0);
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| 47 | virtual ~VBoxDnDDataObject(void);
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| 48 |
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| 49 | public:
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| 50 |
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| 51 | static int CreateDataObject(FORMATETC *pFormatEtc, STGMEDIUM *pStgMeds,
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| 52 | ULONG cFormats, IDataObject **ppDataObject);
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| 53 | public: /* IUnknown methods. */
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| 54 |
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| 55 | STDMETHOD(QueryInterface)(REFIID iid, void ** ppvObject);
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| 56 | STDMETHOD_(ULONG, AddRef)(void);
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| 57 | STDMETHOD_(ULONG, Release)(void);
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| 58 |
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| 59 | public: /* IDataObject methods. */
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| 60 |
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| 61 | STDMETHOD(GetData)(FORMATETC *pFormatEtc, STGMEDIUM *pMedium);
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| 62 | STDMETHOD(GetDataHere)(FORMATETC *pFormatEtc, STGMEDIUM *pMedium);
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| 63 | STDMETHOD(QueryGetData)(FORMATETC *pFormatEtc);
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| 64 | STDMETHOD(GetCanonicalFormatEtc)(FORMATETC *pFormatEct, FORMATETC *pFormatEtcOut);
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| 65 | STDMETHOD(SetData)(FORMATETC *pFormatEtc, STGMEDIUM *pMedium, BOOL fRelease);
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| 66 | STDMETHOD(EnumFormatEtc)(DWORD dwDirection, IEnumFORMATETC **ppEnumFormatEtc);
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| 67 | STDMETHOD(DAdvise)(FORMATETC *pFormatEtc, DWORD advf, IAdviseSink *pAdvSink, DWORD *pdwConnection);
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| 68 | STDMETHOD(DUnadvise)(DWORD dwConnection);
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| 69 | STDMETHOD(EnumDAdvise)(IEnumSTATDATA **ppEnumAdvise);
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| 70 |
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| 71 | public:
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| 72 |
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| 73 | static const char* ClipboardFormatToString(CLIPFORMAT fmt);
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| 74 |
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| 75 | int Abort(void);
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| 76 | void SetStatus(Status status);
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| 77 | int Signal(const RTCString &strFormat, const void *pvData, uint32_t cbData);
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| 78 |
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| 79 | protected:
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| 80 |
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| 81 | bool LookupFormatEtc(FORMATETC *pFormatEtc, ULONG *puIndex);
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| 82 | static HGLOBAL MemDup(HGLOBAL hMemSource);
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| 83 | void RegisterFormat(FORMATETC *pFormatEtc, CLIPFORMAT clipFormat, TYMED tyMed = TYMED_HGLOBAL,
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| 84 | LONG lindex = -1, DWORD dwAspect = DVASPECT_CONTENT, DVTARGETDEVICE *pTargetDevice = NULL);
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| 85 |
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| 86 | Status mStatus;
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| 87 | LONG mRefCount;
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| 88 | ULONG mcFormats;
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| 89 | FORMATETC *mpFormatEtc;
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| 90 | STGMEDIUM *mpStgMedium;
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| 91 | RTSEMEVENT mSemEvent;
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| 92 | RTCString mstrFormat;
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| 93 | void *mpvData;
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| 94 | uint32_t mcbData;
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| 95 | };
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| 96 |
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| 97 | class VBoxDnDDropSource : public IDropSource
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| 98 | {
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| 99 | public:
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| 100 |
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| 101 | VBoxDnDDropSource(VBoxDnDWnd *pThis);
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| 102 | virtual ~VBoxDnDDropSource(void);
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| 103 |
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| 104 | public:
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| 105 |
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| 106 | static int CreateDropSource(VBoxDnDWnd *pParent, IDropSource **ppDropSource);
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| 107 |
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| 108 | public:
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| 109 |
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| 110 | uint32_t GetCurrentAction(void) { return muCurAction; }
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| 111 |
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| 112 | public: /* IUnknown methods. */
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| 113 |
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| 114 | STDMETHOD(QueryInterface)(REFIID iid, void ** ppvObject);
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| 115 | STDMETHOD_(ULONG, AddRef)(void);
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| 116 | STDMETHOD_(ULONG, Release)(void);
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| 117 |
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| 118 | public: /* IDropSource methods. */
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| 119 |
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| 120 | STDMETHOD(QueryContinueDrag)(BOOL fEscapePressed, DWORD dwKeyState);
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| 121 | STDMETHOD(GiveFeedback)(DWORD dwEffect);
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| 122 |
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| 123 | protected:
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| 124 |
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| 125 | LONG mRefCount;
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| 126 | VBoxDnDWnd *mpWndParent;
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| 127 | uint32_t mClientID;
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| 128 | DWORD mdwCurEffect;
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| 129 | uint32_t muCurAction;
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| 130 | };
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| 131 |
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| 132 | class VBoxDnDEnumFormatEtc : public IEnumFORMATETC
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| 133 | {
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| 134 | public:
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| 135 |
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| 136 | VBoxDnDEnumFormatEtc(FORMATETC *pFormatEtc, ULONG cFormats);
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| 137 | virtual ~VBoxDnDEnumFormatEtc(void);
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| 138 |
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| 139 | public:
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| 140 |
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| 141 | STDMETHOD(QueryInterface)(REFIID iid, void ** ppvObject);
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| 142 | STDMETHOD_(ULONG, AddRef)(void);
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| 143 | STDMETHOD_(ULONG, Release)(void);
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| 144 |
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| 145 | STDMETHOD(Next)(ULONG cFormats, FORMATETC *pFormatEtc, ULONG *pcFetched);
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| 146 | STDMETHOD(Skip)(ULONG cFormats);
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| 147 | STDMETHOD(Reset)(void);
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| 148 | STDMETHOD(Clone)(IEnumFORMATETC ** ppEnumFormatEtc);
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| 149 |
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| 150 | public:
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| 151 |
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| 152 | static void CopyFormat(FORMATETC *pFormatDest, FORMATETC *pFormatSource);
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| 153 | static HRESULT CreateEnumFormatEtc(UINT cFormats, FORMATETC *pFormatEtc, IEnumFORMATETC **ppEnumFormatEtc);
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| 154 |
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| 155 | private:
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| 156 |
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| 157 | LONG m_lRefCount;
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| 158 | ULONG m_nIndex;
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| 159 | ULONG m_nNumFormats;
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| 160 | FORMATETC * m_pFormatEtc;
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| 161 | };
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| 162 | #endif /* __VBOXTRAYDND__H */
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| 163 |
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