reactos/dll/win32/shell32/droptargets/CFSDropTarget.h
2018-02-17 22:01:04 +02:00

84 lines
3.2 KiB
C++

/*
* file system folder drop target
*
* Copyright 1997 Marcus Meissner
* Copyright 1998, 1999, 2002 Juergen Schmied
* Copyright 2009 Andrew Hill
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef _CFSDROPTARGET_H_
#define _CFSDROPTARGET_H_
class CFSDropTarget :
public CComObjectRootEx<CComMultiThreadModelNoCS>,
public IDropTarget,
public IObjectWithSite
{
private:
UINT m_cfShellIDList; /* clipboardformat for IDropTarget */
BOOL m_fAcceptFmt; /* flag for pending Drop */
LPWSTR m_sPathTarget;
HWND m_hwndSite;
DWORD m_grfKeyState;
DWORD m_dwDefaultEffect;
CComPtr<IUnknown> m_site;
BOOL _QueryDrop (DWORD dwKeyState, LPDWORD pdwEffect);
HRESULT _DoDrop(IDataObject *pDataObject, DWORD dwKeyState, POINTL pt, DWORD *pdwEffect);
HRESULT _CopyItems(IShellFolder *pSFFrom, UINT cidl, LPCITEMIDLIST *apidl, BOOL bCopy);
BOOL _GetUniqueFileName(LPWSTR pwszBasePath, LPCWSTR pwszExt, LPWSTR pwszTarget, BOOL bShortcut);
static DWORD WINAPI _DoDropThreadProc(LPVOID lpParameter);
HRESULT _GetEffectFromMenu(IDataObject *pDataObject, POINTL pt, DWORD *pdwEffect, DWORD dwAvailableEffects);
HRESULT _RepositionItems(IShellFolderView *psfv, IDataObject *pDataObject, POINTL pt);
public:
CFSDropTarget();
~CFSDropTarget();
HRESULT Initialize(LPWSTR PathTarget);
// IDropTarget
virtual HRESULT WINAPI DragEnter(IDataObject *pDataObject, DWORD dwKeyState, POINTL pt, DWORD *pdwEffect);
virtual HRESULT WINAPI DragOver(DWORD dwKeyState, POINTL pt, DWORD *pdwEffect);
virtual HRESULT WINAPI DragLeave();
virtual HRESULT WINAPI Drop(IDataObject *pDataObject, DWORD dwKeyState, POINTL pt, DWORD *pdwEffect);
// IObjectWithSite
virtual HRESULT STDMETHODCALLTYPE SetSite(IUnknown *pUnkSite);
virtual HRESULT STDMETHODCALLTYPE GetSite(REFIID riid, void **ppvSite);
DECLARE_NOT_AGGREGATABLE(CFSDropTarget)
DECLARE_PROTECT_FINAL_CONSTRUCT()
BEGIN_COM_MAP(CFSDropTarget)
COM_INTERFACE_ENTRY_IID(IID_IDropTarget, IDropTarget)
COM_INTERFACE_ENTRY_IID(IID_IObjectWithSite, IObjectWithSite)
END_COM_MAP()
};
struct _DoDropData {
CFSDropTarget *This;
IStream *pStream;
DWORD dwKeyState;
POINTL pt;
DWORD pdwEffect;
};
HRESULT CFSDropTarget_CreateInstance(LPWSTR sPathTarget, REFIID riid, LPVOID * ppvOut);
#endif /* _CFSFOLDER_H_ */