CMyDocsDropHandler Class Reference

#include <CMyDocsDropHandler.hpp>

Inheritance diagram for CMyDocsDropHandler:

Collaboration diagram for CMyDocsDropHandler:

Public Member Functions
	CMyDocsDropHandler ()
	~CMyDocsDropHandler ()
STDMETHODIMP	DragEnter (IDataObject *pDataObject, DWORD dwKeyState, POINTL pt, DWORD *pdwEffect)
STDMETHODIMP	DragOver (DWORD dwKeyState, POINTL pt, DWORD *pdwEffect)
STDMETHODIMP	DragLeave ()
STDMETHODIMP	Drop (IDataObject *pDataObject, DWORD dwKeyState, POINTL pt, DWORD *pdwEffect)
STDMETHODIMP	GetClassID (CLSID *lpClassId)
STDMETHODIMP	GetCurFile (LPOLESTR *ppszFileName)
STDMETHODIMP	IsDirty ()
STDMETHODIMP	Load (LPCOLESTR pszFileName, DWORD dwMode)
STDMETHODIMP	Save (LPCOLESTR pszFileName, BOOL fRemember)
STDMETHODIMP	SaveCompleted (LPCOLESTR pszFileName)
Public Member Functions inherited from ATL::CComObjectRootEx< CComMultiThreadModelNoCS >
	~CComObjectRootEx ()
ULONG	InternalAddRef ()
ULONG	InternalRelease ()
void	Lock ()
void	Unlock ()
HRESULT	_AtlInitialConstruct ()
Public Member Functions inherited from ATL::CComObjectRootBase
	CComObjectRootBase ()
	~CComObjectRootBase ()
void	SetVoid (void *)
HRESULT	_AtlFinalConstruct ()
HRESULT	FinalConstruct ()
void	InternalFinalConstructAddRef ()
void	InternalFinalConstructRelease ()
void	FinalRelease ()
HRESULT	DragEnter ([in, unique] IDataObject *pDataObj, [in] DWORD grfKeyState, [in] POINTL pt, [in, out] DWORD *pdwEffect)
HRESULT	DragOver ([in] DWORD grfKeyState, [in] POINTL pt, [in, out] DWORD *pdwEffect)
HRESULT	DragLeave ()
HRESULT	Drop ([in, unique] IDataObject *pDataObj, [in] DWORD grfKeyState, [in] POINTL pt, [in, out] DWORD *pdwEffect)
Public Member Functions inherited from IUnknown
HRESULT	QueryInterface ([in] REFIID riid, [out, iid_is(riid)] void **ppvObject)
ULONG	AddRef ()
ULONG	Release ()
HRESULT	IsDirty ()
HRESULT	Load ([in] LPCOLESTR pszFileName, [in] DWORD dwMode)
HRESULT	Save ([in, unique] LPCOLESTR pszFileName, [in] BOOL fRemember)
HRESULT	SaveCompleted ([in, unique] LPCOLESTR pszFileName)
HRESULT	GetCurFile ([out] LPOLESTR *ppszFileName)
HRESULT	GetClassID ([out] CLSID *pClassID)

Additional Inherited Members
Public Types inherited from IDropTarget
typedef IDropTarget *	LPDROPTARGET
Public Types inherited from IUnknown
typedef IUnknown *	LPUNKNOWN
Public Types inherited from IPersistFile
typedef IPersistFile *	LPPERSISTFILE
Public Types inherited from IPersist
typedef IPersist *	LPPERSIST
Static Public Member Functions inherited from ATL::CComObjectRootBase
static void WINAPI	ObjectMain (bool)
static const struct _ATL_CATMAP_ENTRY *	GetCategoryMap ()
static HRESULT WINAPI	InternalQueryInterface (void *pThis, const _ATL_INTMAP_ENTRY *pEntries, REFIID iid, void **ppvObject)
Public Attributes inherited from ATL::CComObjectRootBase
LONG	m_dwRef
Public Attributes inherited from IDropTarget
const DWORD	MK_ALT = 0x20
const DWORD	DROPEFFECT_NONE = 0
const DWORD	DROPEFFECT_COPY = 1
const DWORD	DROPEFFECT_MOVE = 2
const DWORD	DROPEFFECT_LINK = 4
const DWORD	DROPEFFECT_SCROLL = 0x80000000
const DWORD	DD_DEFSCROLLINSET = 11
const DWORD	DD_DEFSCROLLDELAY = 50
const DWORD	DD_DEFSCROLLINTERVAL = 50
const DWORD	DD_DEFDRAGDELAY = 200
const DWORD	DD_DEFDRAGMINDIST = 2

Detailed Description

Definition at line 12 of file CMyDocsDropHandler.hpp.

Constructor & Destructor Documentation

CMyDocsDropHandler()

CMyDocsDropHandler::CMyDocsDropHandler

(

)

Definition at line 12 of file CMyDocsDropHandler.cpp.

{
    InterlockedIncrement(&g_ModuleRefCnt);
}

~CMyDocsDropHandler()

CMyDocsDropHandler::~CMyDocsDropHandler

(

)

Definition at line 17 of file CMyDocsDropHandler.cpp.

{
    InterlockedDecrement(&g_ModuleRefCnt);
}

Member Function Documentation

DragEnter()

STDMETHODIMP CMyDocsDropHandler::DragEnter	(	IDataObject *	pDataObject,
		DWORD	dwKeyState,
		POINTL	pt,
		DWORD *	pdwEffect
	)

Implements IDropTarget.

Definition at line 24 of file CMyDocsDropHandler.cpp.

{
    TRACE("(%p)\n", this);
 
    *pdwEffect &= DROPEFFECT_COPY; // Copy only
 
    return S_OK;
}

DragLeave()

STDMETHODIMP CMyDocsDropHandler::DragLeave

(

void

)

Implements IDropTarget.

Definition at line 44 of file CMyDocsDropHandler.cpp.

{
    TRACE("(%p)\n", this);
    return S_OK;
}

Referenced by Drop().

DragOver()

STDMETHODIMP CMyDocsDropHandler::DragOver	(	DWORD	dwKeyState,
		POINTL	pt,
		DWORD *	pdwEffect
	)

Implements IDropTarget.

Definition at line 35 of file CMyDocsDropHandler.cpp.

{
    TRACE("(%p)\n", this);
 
    *pdwEffect &= DROPEFFECT_COPY; // Copy only
 
    return S_OK;
}

Drop()

STDMETHODIMP CMyDocsDropHandler::Drop	(	IDataObject *	pDataObject,
		DWORD	dwKeyState,
		POINTL	pt,
		DWORD *	pdwEffect
	)

Implements IDropTarget.

Definition at line 51 of file CMyDocsDropHandler.cpp.

{
    TRACE("(%p)\n", this);
 
    if (!pDataObject)
    {
        ERR("pDataObject is NULL\n");
        *pdwEffect = 0;
        DragLeave();
        return E_POINTER;
    }
 
    CComPtr<IShellFolder> pDesktop;
    HRESULT hr = SHGetDesktopFolder(&pDesktop);
    if (FAILED_UNEXPECTEDLY(hr))
        return hr;
 
    // Retrieve an HIDA (handle of IDA)
    CDataObjectHIDA pida(pDataObject);
    if (FAILED_UNEXPECTEDLY(pida.hr()))
    {
        *pdwEffect = 0;
        DragLeave();
        return pida.hr();
    }
 
    UINT iItem, cItems = pida->cidl;
 
    // get the path of "My Documents"
    WCHAR szzDir[MAX_PATH + 1];
    SHGetSpecialFolderPathW(NULL, szzDir, CSIDL_PERSONAL, FALSE);
    szzDir[lstrlenW(szzDir) + 1] = 0; // ends with double NULs
 
    // for all source items
    CStringW strSrcList;
    WCHAR szSrc[MAX_PATH];
    PCIDLIST_ABSOLUTE pidlParent = HIDA_GetPIDLFolder(pida);
    for (iItem = 0; iItem < cItems; ++iItem)
    {
        // query source pidl
        PCITEMID_CHILD pidlChild = HIDA_GetPIDLItem(pida, iItem);
        CComHeapPtr<ITEMIDLIST> pidl(ILCombine(pidlParent, pidlChild));
 
        // can get path?
        szSrc[0] = 0;
        if (!SHGetPathFromIDListW(pidl, szSrc))
        {
            // try to retrieve path from desktop
            STRRET strret;
            hr = pDesktop->GetDisplayNameOf(pidl, SHGDN_INFOLDER, &strret);
            if (FAILED_UNEXPECTEDLY(hr))
                break;
            hr = StrRetToBufW(&strret, pidl, szSrc, _countof(szSrc));
            if (FAILED_UNEXPECTEDLY(hr))
                break;
            if (!PathFileExistsW(szSrc))
                break;
        }
 
        if (iItem > 0)
            strSrcList += L'|'; // separator is '|'
        strSrcList += szSrc;
    }
 
    if (iItem != cItems)
    {
        // source not found
        CStringW strText;
        strText.Format(IDS_NOSRCFILEFOUND, szSrc[0] ? szSrc : L"(null)");
        MessageBoxW(NULL, strText, NULL, MB_ICONERROR);
 
        *pdwEffect = 0;
        DragLeave();
        return E_FAIL;
    }
 
    strSrcList += L"||"; // double separators
 
    // lock the buffer
    LPWSTR pszzSrcList = strSrcList.GetBuffer();
 
    // convert every separator to a NUL
    INT cch = strSrcList.GetLength();
    for (INT i = 0; i < cch; ++i)
    {
        if (pszzSrcList[i] == L'|')
            pszzSrcList[i] = L'\0';
    }
 
    // copy them
    SHFILEOPSTRUCTW fileop = { NULL };
    fileop.wFunc = FO_COPY;
    fileop.pFrom = pszzSrcList;
    fileop.pTo = szzDir;
    fileop.fFlags = FOF_ALLOWUNDO | FOF_FILESONLY | FOF_MULTIDESTFILES | FOF_NOCONFIRMMKDIR;
    int res = SHFileOperationW(&fileop);
    if (res)
    {
        ERR("SHFileOperationW failed with 0x%x\n", res);
        hr = E_FAIL;
    }
 
    // unlock buffer
    strSrcList.ReleaseBuffer();
 
    DragLeave();
    return hr;
}

GetClassID()

STDMETHODIMP CMyDocsDropHandler::GetClassID

(

CLSID *

lpClassId

)

Implements IPersist.

Definition at line 192 of file CMyDocsDropHandler.cpp.

{
    TRACE("(%p)\n", this);
 
    if (!lpClassId)
    {
        ERR("lpClassId is NULL\n");
        return E_POINTER;
    }
 
    *lpClassId = CLSID_MyDocsDropHandler;
 
    return S_OK;
}

GetCurFile()

STDMETHODIMP CMyDocsDropHandler::GetCurFile

(

LPOLESTR *

ppszFileName

)

Implements IPersistFile.

Definition at line 162 of file CMyDocsDropHandler.cpp.

{
    FIXME("(%p)\n", this);
    return E_NOTIMPL;
}

IsDirty()

STDMETHODIMP CMyDocsDropHandler::IsDirty

(

void

)

Implements IPersistFile.

Definition at line 168 of file CMyDocsDropHandler.cpp.

{
    FIXME("(%p)\n", this);
    return E_NOTIMPL;
}

Load()

STDMETHODIMP CMyDocsDropHandler::Load	(	LPCOLESTR	pszFileName,
		DWORD	dwMode
	)

Implements IPersistFile.

Definition at line 174 of file CMyDocsDropHandler.cpp.

{
    return S_OK;
}

Save()

STDMETHODIMP CMyDocsDropHandler::Save	(	LPCOLESTR	pszFileName,
		BOOL	fRemember
	)

Implements IPersistFile.

Definition at line 179 of file CMyDocsDropHandler.cpp.

{
    FIXME("(%p)\n", this);
    return E_NOTIMPL;
}

SaveCompleted()

STDMETHODIMP CMyDocsDropHandler::SaveCompleted

(

LPCOLESTR

pszFileName

)

Implements IPersistFile.

Definition at line 185 of file CMyDocsDropHandler.cpp.

{
    FIXME("(%p)\n", this);
    return E_NOTIMPL;
}

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The documentation for this class was generated from the following files:

• dll/shellext/mydocs/CMyDocsDropHandler.hpp
• dll/shellext/mydocs/CMyDocsDropHandler.cpp