188 lines
8.4 KiB
C++
188 lines
8.4 KiB
C++
/*****************************************************************************\
|
|
FILE: ftpdrop.h - IDropTarget interface
|
|
|
|
Remarks:
|
|
|
|
Note that you cannot create a shortcut on an FTP site. Although
|
|
there's nothing technically preventing it, it's not done because
|
|
the shortcut won't be of much use on an FTP site. (It points to
|
|
your local machine, which doesn't help much for people not on the
|
|
same network!)
|
|
|
|
If you really want to put a shortcut file on an FTP site, create
|
|
it on the desktop, then drag the shortcut onto the FTP site.
|
|
|
|
The default verb for FTP sites is always "Copy". This is true
|
|
even if an intra-site drag-drop is being done.
|
|
|
|
DESCRIPTION:
|
|
DefView will cache the IDropTarget pointer (CFtpDrop) for a shell extension.
|
|
When it calls CFtpDrop::Drop(), the work needs to be done on a background
|
|
thread in order to not block the UI thread. The problem is that if the user
|
|
does another drag to the same Ftp Window, CFtpDrop::Drop() will be called again.
|
|
For this reasons, CFtpDrop::Drop() cannot have any state after it returns.
|
|
In order to accomplish this with the asynch background thread, we have
|
|
CFtpDrop::Drop() call CDropOperation_Create(), and then CDropOperation->DoOperation().
|
|
And then it will orphan (call Release()) the CDropOperation. The CDropOperation
|
|
will then destroy itself when the copy is finishes. This enables subsequent calls
|
|
to CFtpDrop::Drop() to spawn separate CDropOperation objects so each can maintain
|
|
the state for that specifc operation and CFtpDrop remains stateless.
|
|
\*****************************************************************************/
|
|
|
|
#ifndef _FTPDROP_H
|
|
#define _FTPDROP_H
|
|
|
|
#include "util.h"
|
|
|
|
typedef enum OPS
|
|
{ // Overwrite prompt status
|
|
opsPrompt, // Prompt each collision
|
|
opsYesToAll, // Overwrite unconditionally
|
|
opsNoToAll, // Never overwrite
|
|
opsCancel, // Stop the operation
|
|
} OPS;
|
|
|
|
#define COHDI_FILESIZE_COUNT 5
|
|
#define COHDI_COPY_FILES 6
|
|
|
|
typedef struct tagCOPYONEHDROPINFO
|
|
{
|
|
CFtpFolder * pff;
|
|
LPCWSTR pszFSSource;
|
|
LPCWSTR pszFtpDest;
|
|
LPCWSTR pszDir;
|
|
DWORD dwOperation; // COHDI_FILESIZE_COUNT, COHDI_COPY_FILES, etc.
|
|
OPS ops;
|
|
BOOL fIsRoot;
|
|
CMultiLanguageCache * pmlc;
|
|
LPITEMIDLIST pidlServer;
|
|
BOOL fFireChangeNotify; // Don't fire change notify on BrowserOnly when replacing a file.
|
|
PROGRESSINFO progInfo;
|
|
} COPYONEHDROPINFO, * LPCOPYONEHDROPINFO;
|
|
|
|
typedef HRESULT (*STREAMCOPYPROC)(IStream * pstm, DWORD dwFlags, DWORD dwFileSizeHigh, DWORD dwFileSizeLow, LPVOID pv, ULARGE_INTEGER *pqw);
|
|
|
|
#ifdef UNICODE
|
|
#define _EnumOneHdrop _EnumOneHdropW
|
|
#else // UNICODE
|
|
#define _EnumOneHdrop _EnumOneHdropA
|
|
#endif // UNICODE
|
|
|
|
|
|
/*****************************************************************************\
|
|
|
|
CFtpDrop
|
|
|
|
de and pde are rather gnarly.
|
|
|
|
pde is where the output drop effect is kept. A drop handler
|
|
can force the effect to be DROPEFFECT_COPY if it encounters a
|
|
situation that indicates that the source shouldn't be deleted.
|
|
(E.g., if a file is not copied due to an illegal file name.)
|
|
|
|
de is where the current effect is kept. A drop handler
|
|
should consult de to decide whether or not the source
|
|
should be deleted. (Used by the HDROP handler, because it is
|
|
the drop target's responsibility to delete the source of an
|
|
HDROP if applicable.)
|
|
|
|
You should read from de and write to *pde. Don't
|
|
write to de or read from *pde.
|
|
|
|
The overwrite prompting state tells us how to handle
|
|
the case where an incoming file collides with an existing file.
|
|
|
|
DESCRIPTION:
|
|
DefView will cache the IDropTarget pointer (CFtpDrop) for a shell extension.
|
|
When it calls CFtpDrop::Drop(), the work needs to be done on a background
|
|
thread in order to not block the UI thread. The problem is that if the user
|
|
does another drag to the same Ftp Window, CFtpDrop::Drop() will be called again.
|
|
For this reasons, CFtpDrop::Drop() cannot have any state after it returns.
|
|
In order to accomplish this with the asynch background thread, we have
|
|
CFtpDrop::Drop() call CDropOperation_Create(), and then CDropOperation->DoOperation().
|
|
And then it will orphan (call Release()) the CDropOperation. The CDropOperation
|
|
will then destroy itself when the copy is finishes. This enables subsequent calls
|
|
to CFtpDrop::Drop() to spawn separate CDropOperation objects so each can maintain
|
|
the state for that specifc operation and CFtpDrop remains stateless.
|
|
\*****************************************************************************/
|
|
class CFtpDrop : public IDropTarget
|
|
{
|
|
public:
|
|
//////////////////////////////////////////////////////
|
|
// Public Interfaces
|
|
//////////////////////////////////////////////////////
|
|
|
|
// *** IUnknown ***
|
|
virtual STDMETHODIMP_(ULONG) AddRef(void);
|
|
virtual STDMETHODIMP_(ULONG) Release(void);
|
|
virtual STDMETHODIMP QueryInterface(REFIID riid, LPVOID * ppvObj);
|
|
|
|
// *** IDropTarget ***
|
|
virtual STDMETHODIMP DragEnter(IDataObject *pdtobj, DWORD grfKeyState, POINTL pt, DWORD *pdwEffect);
|
|
virtual STDMETHODIMP DragOver(DWORD grfKeyState, POINTL pt, DWORD *pdwEffect);
|
|
virtual STDMETHODIMP DragLeave(void);
|
|
virtual STDMETHODIMP Drop(IDataObject *pdtobj, DWORD grfKeyState, POINTL pt, DWORD *pdwEffect);
|
|
|
|
public:
|
|
CFtpDrop();
|
|
~CFtpDrop(void);
|
|
|
|
// Public Member Functions
|
|
DWORD GetEffectsAvail(IDataObject * pdto);
|
|
STDMETHODIMP EnumHdrop(HGLOBAL hdrop, HGLOBAL hmap, BOOL fCopy);
|
|
|
|
static HRESULT _CopyHglobal(IStream * pstm, DWORD dwFlags, DWORD dwFileSizeHigh, DWORD dwFileSizeLow, LPVOID pvSrc, ULARGE_INTEGER *pqw);
|
|
static HRESULT CopyStream(IStream * pstm, DWORD dwFlags, DWORD dwFileSizeHigh, DWORD dwFileSizeLow, LPVOID pvSrc, ULARGE_INTEGER *pqw);
|
|
|
|
|
|
// Friend Functions
|
|
friend HRESULT CFtpDrop_Create(CFtpFolder * pff, HWND hwnd, CFtpDrop ** ppfm);
|
|
|
|
protected:
|
|
// Protected Member Variables
|
|
int m_cRef;
|
|
|
|
CFtpFolder * m_pff; // The owner
|
|
CFtpDir * m_pfd; // The FtpDir of the owner
|
|
HWND m_hwnd; // The window being drug over
|
|
|
|
DWORD m_grfks; // Last grfKeyState seen
|
|
DWORD m_grfksAvail; // Effects available
|
|
DROPEFFECT m_de; // Effect being performed
|
|
DROPEFFECT * m_pde; // Output effect
|
|
OPS m_ops; // Overwrite prompting state
|
|
int m_cobj; // Number of objects being dropped
|
|
|
|
// Private Member Functions
|
|
HRESULT SetEffect(DROPEFFECT * pde);
|
|
HRESULT _InvokePaste(LPCMINVOKECOMMANDINFO pici);
|
|
BOOL _HasData(IDataObject * pdto, FORMATETC * pformatetc) { return (S_OK == pdto->QueryGetData(pformatetc)); };
|
|
DROPEFFECT GetEffect(POINTL pt);
|
|
HRESULT CopyStorage(LPCTSTR pszFile, IStorage * pstgIn);
|
|
HRESULT CopyHdrop(IDataObject * pdto, STGMEDIUM *psm);
|
|
HRESULT CopyAsStream(LPCTSTR pszName, DWORD dwFileAttributes, DWORD dwFlags, DWORD dwFileSizeHigh, DWORD dwFileSizeLow, STREAMCOPYPROC pfn, LPVOID pv);
|
|
HRESULT CopyFCont(LPCTSTR pszName, DWORD dwFileAttributes, DWORD dwFlags, DWORD dwFileSizeHigh, DWORD dwFileSizeLow, STGMEDIUM *psm);
|
|
HRESULT CopyFGD(IDataObject * pdto, STGMEDIUM *psm, BOOL fUnicode);
|
|
HRESULT _Copy(IDataObject * pdto);
|
|
HRESULT _CopyOneHdrop(LPCTSTR pszFSSource, LPCTSTR pszFtpDest, IProgressDialog * ppd);
|
|
|
|
HRESULT _StartBackgroundInteration(void);
|
|
HRESULT _DoCountIteration(void);
|
|
HRESULT _GetFSSourcePaths(HGLOBAL hdrop, BOOL * pfAnsi);
|
|
HRESULT _GetFtpDestPaths(HGLOBAL hmap, BOOL fAnsi);
|
|
|
|
private:
|
|
// Private Member Variables
|
|
LPCTSTR m_pszzFSSource; // Paths
|
|
LPCTSTR m_pszzFtpDest; // Map
|
|
|
|
|
|
HRESULT _CalcSizeOneHdrop(LPCWSTR pszFSSource, LPCWSTR pszFtpDest, IProgressDialog * ppd);
|
|
HRESULT _GetFileDescriptor(LONG nIndex, LPFILEGROUPDESCRIPTORW pfgdW, LPFILEGROUPDESCRIPTORA pfgdA, BOOL fUnicode, LPFILEDESCRIPTOR pfd);
|
|
HRESULT _CreateFGDDirectory(LPFILEDESCRIPTOR pfd);
|
|
BOOL _IsFTPOperationAllowed(IDataObject * pdto);
|
|
CFtpDir * _GetRelativePidl(LPCWSTR pszFullPath, DWORD dwFileAttributes, DWORD dwFileSizeHigh, DWORD dwFileSizeLow, LPITEMIDLIST * ppidl);
|
|
};
|
|
|
|
#endif // _FTPDROP_H
|