165 lines
7.6 KiB
C
165 lines
7.6 KiB
C
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/*****************************************************************************\
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FILE: ftpobj.h
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\*****************************************************************************/
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#ifndef _FTPOBJ_H
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#define _FTPOBJ_H
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#include "ftpefe.h"
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typedef struct
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{
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DVTARGETDEVICE dvTargetDevice;
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FORMATETC formatEtc;
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STGMEDIUM medium;
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} FORMATETC_STGMEDIUM;
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/*****************************************************************************\
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CLASS: CFtpObj
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Careful! The elements of m_stgCache are rather weird due to delayed
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rendering. If m_stgCache[].tymed == TYMED_HGLOBAL but
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m_stgCache[].hGlobal == 0, then the FORMATETC exists in the DataObject,
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but hasn't been rendered yet.
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It will be rendered when you call CFtpObj::_ForceRender().
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This weirdness with delayed rendering means that you have to be
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careful when you try to access the gizmo.
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1. Before trying to use the gizmo, use CFtpObj::_ForceRender().
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2. When trying to free the gizmo, use CFtpObj::_ReleasePstg().
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Yet another weirdness with m_stgCache is that all hGlobal's have a
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special babysitter pUnkForRelease. This is important so that
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interactions between CFtpObj::GetData and CFtpObj::SetData are isolated.
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(If you were lazy and used the CFtpObj itself as the pUnkForRelease,
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then you'd run into trouble if somebody tried to SetData into the
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data object, which overwrites an hGlobal you had previously given away.)
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m_nStartIndex/m_nEndIndex: We give out a list of FILEDESCRIPTORS in the
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FILEGROUPDESCRIPTOR. If the directory attribute is set, the caller will
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just create the directory. If it's a file, it will call IDataObject::GetData()
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with DROP_FCont. We would like to display progress on the old shell because
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it normally doesn't display progress until NT5. We need to decide when to start
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and stop. We set m_nStartIndex to -1 to indicate that we don't know. When we
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get a DROP_FCont call, we then calculate the first and the last. We will then
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display the progress dialog until the caller has either called the last one or
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errored out.
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The data is kept in two places. The data we offer and render is in m_stgCache.
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The data we will carry is stored in m_hdsaSetData.
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\*****************************************************************************/
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class CFtpObj : public IDataObject
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, public IPersistStream
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, public IInternetSecurityMgrSite
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, public IAsyncOperation
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{
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public:
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//////////////////////////////////////////////////////
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// Public Interfaces
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//////////////////////////////////////////////////////
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// *** IUnknown ***
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virtual STDMETHODIMP_(ULONG) AddRef(void);
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virtual STDMETHODIMP_(ULONG) Release(void);
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virtual STDMETHODIMP QueryInterface(REFIID riid, LPVOID * ppvObj);
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// *** IDataObject ***
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virtual STDMETHODIMP GetData(FORMATETC *pfmtetcIn, STGMEDIUM *pstgmed);
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virtual STDMETHODIMP GetDataHere(FORMATETC *pfmtetc, STGMEDIUM *pstgpmed);
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virtual STDMETHODIMP QueryGetData(FORMATETC *pfmtetc);
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virtual STDMETHODIMP GetCanonicalFormatEtc(FORMATETC *pfmtetcIn, FORMATETC *pfmtetcOut);
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virtual STDMETHODIMP SetData(FORMATETC *pfmtetc, STGMEDIUM *pstgmed, BOOL bRelease);
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virtual STDMETHODIMP EnumFormatEtc(DWORD dwDirection, IEnumFORMATETC **ppienumFormatEtc);
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virtual STDMETHODIMP DAdvise(FORMATETC *pfmtetc, DWORD dwAdviseFlags, IAdviseSink * piadvsink, DWORD * pdwConnection);
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virtual STDMETHODIMP DUnadvise(DWORD dwConnection);
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virtual STDMETHODIMP EnumDAdvise(IEnumSTATDATA **ppienumStatData);
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// *** IPersist ***
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virtual STDMETHODIMP GetClassID(CLSID *pClassID){ *pClassID = CLSID_FtpDataObject; return S_OK; }
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// *** IPersistStream ***
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virtual STDMETHODIMP IsDirty(void) {return S_OK;} // Indicate that we are dirty and ::Save() needs to be called.
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virtual STDMETHODIMP Load(IStream *pStm);
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virtual STDMETHODIMP Save(IStream *pStm, BOOL fClearDirty);
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virtual STDMETHODIMP GetSizeMax(ULARGE_INTEGER * pcbSize);
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// *** IInternetSecurityMgrSite ***
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virtual STDMETHODIMP GetWindow(HWND * phwnd) { if (phwnd) *phwnd = NULL; return S_OK; };
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virtual STDMETHODIMP EnableModeless(BOOL fEnable) {return E_NOTIMPL;};
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// *** IAsyncOperation methods ***
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virtual STDMETHODIMP SetAsyncMode(BOOL fDoOpAsync) {return E_NOTIMPL;};
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virtual STDMETHODIMP GetAsyncMode(BOOL * pfIsOpAsync);
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virtual STDMETHODIMP StartOperation(IBindCtx * pbcReserved);
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virtual STDMETHODIMP InOperation(BOOL * pfInAsyncOp);
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virtual STDMETHODIMP EndOperation(HRESULT hResult, IBindCtx * pbcReserved, DWORD dwEffects);
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public:
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CFtpObj();
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~CFtpObj(void);
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// Public Member Functions
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static int _DSA_FreeCB(LPVOID pvItem, LPVOID pvlparam);
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CFtpPidlList * GetHfpl() { return m_pflHfpl;};
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// Friend Functions
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friend HRESULT CFtpObj_Create(CFtpFolder * pff, CFtpPidlList * pflHfpl, REFIID riid, LPVOID * ppvObj);
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friend HRESULT CFtpObj_Create(CFtpFolder * pff, CFtpPidlList * pflHfpl, CFtpObj ** ppfo);
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friend HRESULT CFtpObj_Create(REFIID riid, void ** ppvObj);
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friend class CFtpEfe;
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protected:
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// Private Member Variables
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int m_cRef;
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CFtpFolder * m_pff; // My dad
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CFtpDir * m_pfd; // My dad's home
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CFtpPidlList * m_pflHfpl; // List/Array of pidls
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STGMEDIUM m_stgCache[DROP_MAX];
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HDSA m_hdsaSetData; // Array of SetData. Each item is a FORMATETC_STGMEDIUM.
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// Members for Progress on Legacy systems.
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IProgressDialog * m_ppd;
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ULARGE_INTEGER m_uliCompleted;
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ULARGE_INTEGER m_uliTotal;
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int m_nStartIndex; // Commented above in CLASS: CFtpObj
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int m_nEndIndex; // Commented above in CLASS: CFtpObj
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BOOL m_fFGDRendered; // Did we expand m_pflHfpl?
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BOOL m_fCheckSecurity; // TRUE means check security and display UI. FALSE means it's unsafe and cancel w/o UI because it was already shown..
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BOOL m_fDidAsynchStart; // Did the IDropTarget call IAsynchDataObject::StartOperation() to start the copy? (To show he supports it)
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BOOL m_fErrAlreadyDisplayed; // Did was already display the error?
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IUnknown * m_punkThreadRef; // Don't allow the browser closing to cancel our drag/drop operation.
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// Private Member Functions
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void _CheckStg(void);
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BOOL _IsLindexOkay(int ife, FORMATETC *pfeWant);
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HRESULT _FindData(FORMATETC *pfe, PINT piOut);
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HRESULT _FindDataForGet(FORMATETC *pfe, PINT piOut);
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HGLOBAL _DelayRender_FGD(BOOL fUnicode);
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HRESULT _DelayRender_IDList(STGMEDIUM * pStgMedium);
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HRESULT _DelayRender_URL(STGMEDIUM * pStgMedium);
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HRESULT _DelayRender_PrefDe(STGMEDIUM * pStgMedium);
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HRESULT _RenderOlePersist(STGMEDIUM * pStgMedium);
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HRESULT _RenderFGD(int nIndex, STGMEDIUM * pStgMedium);
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HRESULT _ForceRender(int ife);
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HRESULT _RefThread(void);
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CFtpPidlList * _ExpandPidlListRecursively(CFtpPidlList * ppidlListSrc);
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int _FindExtraDataIndex(FORMATETC *pfe);
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HRESULT _SetExtraData(FORMATETC *pfe, STGMEDIUM *pstg, BOOL fRelease);
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HRESULT _RenderFileContents(LPFORMATETC pfe, LPSTGMEDIUM pstg);
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HRESULT _DoProgressForLegacySystemsPre(void);
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HRESULT _DoProgressForLegacySystemsStart(LPCITEMIDLIST pidl, int nIndex);
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HRESULT _DoProgressForLegacySystemsPost(LPCITEMIDLIST pidl, BOOL fLast);
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HRESULT _SetProgressDialogValues(int nIndex);
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HRESULT _CloseProgressDialog(void);
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};
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#endif // _FTPOBJ_H
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