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windows-nt/Source/XPSP1/NT/shell/shell32/deskfldr.cpp

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2020-09-26 03:20:57 -05:00
#include "shellprv.h"
#include "deskfldr.h"
#include "fstreex.h"
#include "datautil.h"
#include "views.h"
#include "ids.h"
#include "caggunk.h"
#include "shitemid.h"
#include "basefvcb.h"
#include "filefldr.h"
#include "drives.h"
#include "infotip.h"
#include "prop.h"
#include <idhidden.h>
#include "cowsite.h"
#include "unicpp\deskhtm.h"
#include "sfstorage.h"
#include <cfgmgr32.h> // MAX_GUID_STRING_LEN
#include "defcm.h"
#define EXCLUDE_COMPPROPSHEET
#include "unicpp\dcomp.h"
#undef EXCLUDE_COMPPROPSHEET
// TODO - maybe we should add rooted folders to the AnyAlias's - ZekeL - 27-JAN-2000
class CDesktopRootedStub : public IShellFolder2, public IContextMenuCB
{
public:
// IUnknown
STDMETHODIMP QueryInterface(REFIID riid, void **ppv) { return E_UNEXPECTED;}
STDMETHODIMP_(ULONG) AddRef(void) { return 3; }
STDMETHODIMP_(ULONG) Release(void) { return 2; }
// IShellFolder
STDMETHODIMP ParseDisplayName(HWND hwnd, LPBC pbc, LPOLESTR lpszDisplayName,
ULONG * pchEaten, LPITEMIDLIST * ppidl, ULONG *pdwAttributes);
STDMETHODIMP EnumObjects(HWND hwnd, DWORD grfFlags, IEnumIDList **ppenumIDList)
{return E_NOTIMPL;}
STDMETHODIMP BindToObject(LPCITEMIDLIST pidl, LPBC pbc, REFIID riid, void **ppv)
{return ILRootedBindToObject(pidl, riid, ppv);}
STDMETHODIMP BindToStorage(LPCITEMIDLIST pidl, LPBC pbc, REFIID riid, void **ppv)
{
LPCITEMIDLIST pidlChild;
IShellFolder *psf;
HRESULT hr = ILRootedBindToParentFolder(pidl, IID_PPV_ARG(IShellFolder, &psf), &pidlChild);
if (SUCCEEDED(hr))
{
hr = psf->BindToStorage(pidlChild, pbc, riid, ppv);
psf->Release();
}
return hr;
}
STDMETHODIMP CompareIDs(LPARAM lParam, LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
{
if (ILIsEqualRoot(pidl1, pidl2))
{
return ILCompareRelIDs(SAFECAST(this, IShellFolder *), pidl1, pidl2, lParam);
}
else
{
UINT cb1 = ILGetSize(pidl1);
UINT cb2 = ILGetSize(pidl2);
short i = (short) memcmp(pidl1, pidl2, min(cb1, cb2));
if (i == 0)
i = cb1 - cb2;
return ResultFromShort(i);
}
return ResultFromShort(-1);
}
STDMETHODIMP CreateViewObject (HWND hwnd, REFIID riid, void **ppv)
{return E_NOTIMPL;}
STDMETHODIMP GetAttributesOf(UINT cidl, LPCITEMIDLIST * apidl, ULONG *rgfInOut)
{
HRESULT hr = E_INVALIDARG;
if (cidl == 1)
{
LPCITEMIDLIST pidlChild;
IShellFolder *psf;
hr = ILRootedBindToParentFolder(apidl[0], IID_PPV_ARG(IShellFolder, &psf), &pidlChild);
if (SUCCEEDED(hr))
{
hr = psf->GetAttributesOf(1, &pidlChild, rgfInOut);
psf->Release();
}
}
return hr;
}
STDMETHODIMP GetUIObjectOf(HWND hwnd, UINT cidl, LPCITEMIDLIST * apidl,
REFIID riid, UINT * prgfInOut, void **ppv);
STDMETHODIMP GetDisplayNameOf(LPCITEMIDLIST pidl, DWORD uFlags, LPSTRRET lpName)
{
LPCITEMIDLIST pidlChild;
IShellFolder *psf;
HRESULT hr = ILRootedBindToParentFolder(pidl, IID_PPV_ARG(IShellFolder, &psf), &pidlChild);
if (SUCCEEDED(hr))
{
hr = psf->GetDisplayNameOf(pidlChild, uFlags, lpName);
psf->Release();
}
return hr;
}
STDMETHODIMP SetNameOf(HWND hwnd, LPCITEMIDLIST pidl, LPCOLESTR lpszName, DWORD uFlags,
LPITEMIDLIST * ppidlOut)
{return E_NOTIMPL;}
// IShellFolder2 methods
STDMETHODIMP GetDefaultSearchGUID(LPGUID lpGuid)
{return E_NOTIMPL;}
STDMETHODIMP EnumSearches(LPENUMEXTRASEARCH *ppenum)
{return E_NOTIMPL;}
STDMETHODIMP GetDefaultColumn(DWORD dwRes, ULONG *pSort, ULONG *pDisplay)
{return E_NOTIMPL;}
STDMETHODIMP GetDefaultColumnState(UINT iColumn, DWORD *pbState)
{return E_NOTIMPL;}
STDMETHODIMP GetDetailsEx(LPCITEMIDLIST pidl, const SHCOLUMNID *pscid, VARIANT *pv)
{
LPCITEMIDLIST pidlChild;
IShellFolder2 *psf;
HRESULT hr = ILRootedBindToParentFolder(pidl, IID_PPV_ARG(IShellFolder2, &psf), &pidlChild);
if (SUCCEEDED(hr))
{
hr = psf->GetDetailsEx(pidlChild, pscid, pv);
psf->Release();
}
return hr;
}
STDMETHODIMP GetDetailsOf(LPCITEMIDLIST pidl, UINT iColumn, SHELLDETAILS *pDetails)
{
LPCITEMIDLIST pidlChild;
IShellFolder2 *psf;
HRESULT hr = ILRootedBindToParentFolder(pidl, IID_PPV_ARG(IShellFolder2, &psf), &pidlChild);
if (SUCCEEDED(hr))
{
hr = psf->GetDetailsOf(pidlChild, iColumn, pDetails);
psf->Release();
}
return hr;
}
STDMETHODIMP MapColumnToSCID(UINT iColumn, SHCOLUMNID *pscid)
{return E_NOTIMPL;}
// IContextMenuCB
STDMETHODIMP CallBack(IShellFolder *psf, HWND hwnd, IDataObject *pdtobj,
UINT uMsg, WPARAM wParam, LPARAM lParam)
{return (uMsg == DFM_MERGECONTEXTMENU) ? S_OK : E_NOTIMPL;}
};
class CShellUrlStub : public IShellFolder
{
public:
// IUnknown
STDMETHODIMP QueryInterface(REFIID riid, void **ppv) { return E_UNEXPECTED;}
STDMETHODIMP_(ULONG) AddRef(void) { return 3; }
STDMETHODIMP_(ULONG) Release(void) { return 2; }
// IShellFolder
STDMETHODIMP ParseDisplayName(HWND hwnd, LPBC pbc, LPOLESTR lpszDisplayName,
ULONG * pchEaten, LPITEMIDLIST * ppidl, ULONG *pdwAttributes);
STDMETHODIMP EnumObjects(HWND hwnd, DWORD grfFlags, IEnumIDList **ppenumIDList)
{return E_NOTIMPL;}
STDMETHODIMP BindToObject(LPCITEMIDLIST pidl, LPBC pbc, REFIID riid, void **ppv)
{return E_NOTIMPL;}
STDMETHODIMP BindToStorage(LPCITEMIDLIST pidl, LPBC pbc, REFIID riid, void **ppv)
{return E_NOTIMPL;}
STDMETHODIMP CompareIDs(LPARAM lParam, LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
{return E_NOTIMPL;}
STDMETHODIMP CreateViewObject (HWND hwnd, REFIID riid, void **ppv)
{return E_NOTIMPL;}
STDMETHODIMP GetAttributesOf(UINT cidl, LPCITEMIDLIST * apidl, ULONG *rgfInOut)
{return E_NOTIMPL;}
STDMETHODIMP GetUIObjectOf(HWND hwnd, UINT cidl, LPCITEMIDLIST * apidl,
REFIID riid, UINT * prgfInOut, void **ppv)
{return E_NOTIMPL;}
STDMETHODIMP GetDisplayNameOf(LPCITEMIDLIST pidl, DWORD uFlags, LPSTRRET lpName)
{return E_NOTIMPL;}
STDMETHODIMP SetNameOf(HWND hwnd, LPCITEMIDLIST pidl, LPCOLESTR lpszName, DWORD uFlags,
LPITEMIDLIST * ppidlOut)
{return E_NOTIMPL;}
};
class CIDListUrlStub : public IShellFolder
{
public:
// IUnknown
STDMETHODIMP QueryInterface(REFIID riid, void **ppv) { return E_UNEXPECTED;}
STDMETHODIMP_(ULONG) AddRef(void) { return 3; }
STDMETHODIMP_(ULONG) Release(void) { return 2; }
// IShellFolder
STDMETHODIMP ParseDisplayName(HWND hwnd, LPBC pbc, LPOLESTR lpszDisplayName,
ULONG * pchEaten, LPITEMIDLIST * ppidl, ULONG *pdwAttributes);
STDMETHODIMP EnumObjects(HWND hwnd, DWORD grfFlags, IEnumIDList **ppenumIDList)
{return E_NOTIMPL;}
STDMETHODIMP BindToObject(LPCITEMIDLIST pidl, LPBC pbc, REFIID riid, void **ppv)
{return E_NOTIMPL;}
STDMETHODIMP BindToStorage(LPCITEMIDLIST pidl, LPBC pbc, REFIID riid, void **ppv)
{return E_NOTIMPL;}
STDMETHODIMP CompareIDs(LPARAM lParam, LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
{return E_NOTIMPL;}
STDMETHODIMP CreateViewObject (HWND hwnd, REFIID riid, void **ppv)
{return E_NOTIMPL;}
STDMETHODIMP GetAttributesOf(UINT cidl, LPCITEMIDLIST * apidl, ULONG *rgfInOut)
{return E_NOTIMPL;}
STDMETHODIMP GetUIObjectOf(HWND hwnd, UINT cidl, LPCITEMIDLIST * apidl,
REFIID riid, UINT * prgfInOut, void **ppv)
{return E_NOTIMPL;}
STDMETHODIMP GetDisplayNameOf(LPCITEMIDLIST pidl, DWORD uFlags, LPSTRRET lpName)
{return E_NOTIMPL;}
STDMETHODIMP SetNameOf(HWND hwnd, LPCITEMIDLIST pidl, LPCOLESTR lpszName, DWORD uFlags,
LPITEMIDLIST * ppidlOut)
{return E_NOTIMPL;}
};
class CFileUrlStub : public IShellFolder
{
public:
// IUnknown
STDMETHODIMP QueryInterface(REFIID riid, void **ppv) { return E_UNEXPECTED;}
STDMETHODIMP_(ULONG) AddRef(void) { return 3; }
STDMETHODIMP_(ULONG) Release(void) { return 2; }
// IShellFolder
STDMETHODIMP ParseDisplayName(HWND hwnd, LPBC pbc, LPOLESTR lpszDisplayName,
ULONG * pchEaten, LPITEMIDLIST * ppidl, ULONG *pdwAttributes);
STDMETHODIMP EnumObjects(HWND hwnd, DWORD grfFlags, IEnumIDList **ppenumIDList)
{return E_NOTIMPL;}
STDMETHODIMP BindToObject(LPCITEMIDLIST pidl, LPBC pbc, REFIID riid, void **ppv)
{return E_NOTIMPL;}
STDMETHODIMP BindToStorage(LPCITEMIDLIST pidl, LPBC pbc, REFIID riid, void **ppv)
{return E_NOTIMPL;}
STDMETHODIMP CompareIDs(LPARAM lParam, LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
{return E_NOTIMPL;}
STDMETHODIMP CreateViewObject (HWND hwnd, REFIID riid, void **ppv)
{return E_NOTIMPL;}
STDMETHODIMP GetAttributesOf(UINT cidl, LPCITEMIDLIST * apidl, ULONG *rgfInOut)
{return E_NOTIMPL;}
STDMETHODIMP GetUIObjectOf(HWND hwnd, UINT cidl, LPCITEMIDLIST * apidl,
REFIID riid, UINT * prgfInOut, void **ppv)
{return E_NOTIMPL;}
STDMETHODIMP GetDisplayNameOf(LPCITEMIDLIST pidl, DWORD uFlags, LPSTRRET lpName)
{return E_NOTIMPL;}
STDMETHODIMP SetNameOf(HWND hwnd, LPCITEMIDLIST pidl, LPCOLESTR lpszName, DWORD uFlags,
LPITEMIDLIST * ppidlOut)
{return E_NOTIMPL;}
};
class CHttpUrlStub : public IShellFolder
{
public:
// IUnknown
STDMETHODIMP QueryInterface(REFIID riid, void **ppv) { return E_UNEXPECTED;}
STDMETHODIMP_(ULONG) AddRef(void) { return 3; }
STDMETHODIMP_(ULONG) Release(void) { return 2; }
// IShellFolder
STDMETHODIMP ParseDisplayName(HWND hwnd, LPBC pbc, LPOLESTR lpszDisplayName,
ULONG * pchEaten, LPITEMIDLIST * ppidl, ULONG *pdwAttributes);
STDMETHODIMP EnumObjects(HWND hwnd, DWORD grfFlags, IEnumIDList **ppenumIDList)
{return E_NOTIMPL;}
STDMETHODIMP BindToObject(LPCITEMIDLIST pidl, LPBC pbc, REFIID riid, void **ppv)
{return E_NOTIMPL;}
STDMETHODIMP BindToStorage(LPCITEMIDLIST pidl, LPBC pbc, REFIID riid, void **ppv)
{return E_NOTIMPL;}
STDMETHODIMP CompareIDs(LPARAM lParam, LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
{return E_NOTIMPL;}
STDMETHODIMP CreateViewObject (HWND hwnd, REFIID riid, void **ppv)
{return E_NOTIMPL;}
STDMETHODIMP GetAttributesOf(UINT cidl, LPCITEMIDLIST * apidl, ULONG *rgfInOut)
{return E_NOTIMPL;}
STDMETHODIMP GetUIObjectOf(HWND hwnd, UINT cidl, LPCITEMIDLIST * apidl,
REFIID riid, UINT * prgfInOut, void **ppv)
{return E_NOTIMPL;}
STDMETHODIMP GetDisplayNameOf(LPCITEMIDLIST pidl, DWORD uFlags, LPSTRRET lpName)
{return E_NOTIMPL;}
STDMETHODIMP SetNameOf(HWND hwnd, LPCITEMIDLIST pidl, LPCOLESTR lpszName, DWORD uFlags,
LPITEMIDLIST * ppidlOut)
{return E_NOTIMPL;}
};
class CDesktopFolderEnum;
class CDesktopViewCallBack;
class CDesktopFolderDropTarget;
class CDesktopFolder : CObjectWithSite
, CSFStorage
, public IPersistFolder2
, public IShellIcon
, public IShellIconOverlay
, public IContextMenuCB
, public ITranslateShellChangeNotify
, public IItemNameLimits
, public IOleCommandTarget
{
public:
// IUnknown
STDMETHODIMP QueryInterface(REFIID riid, void **ppv);
STDMETHODIMP_(ULONG) AddRef(void) { return 3; };
STDMETHODIMP_(ULONG) Release(void) { return 2; };
// IShellFolder
STDMETHODIMP ParseDisplayName(HWND hwnd, LPBC pbc, LPOLESTR lpszDisplayName,
ULONG * pchEaten, LPITEMIDLIST * ppidl, ULONG *pdwAttributes);
STDMETHODIMP EnumObjects(HWND hwnd, DWORD grfFlags, IEnumIDList **ppenumIDList);
STDMETHODIMP BindToObject(LPCITEMIDLIST pidl, LPBC pbc, REFIID riid, void **ppv);
STDMETHODIMP BindToStorage(LPCITEMIDLIST pidl, LPBC pbc, REFIID riid, void **ppv);
STDMETHODIMP CompareIDs(LPARAM lParam, LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2);
STDMETHODIMP CreateViewObject (HWND hwnd, REFIID riid, void **ppv);
STDMETHODIMP GetAttributesOf(UINT cidl, LPCITEMIDLIST * apidl, ULONG *rgfInOut);
STDMETHODIMP GetUIObjectOf(HWND hwnd, UINT cidl, LPCITEMIDLIST * apidl,
REFIID riid, UINT * prgfInOut, void **ppv);
STDMETHODIMP GetDisplayNameOf(LPCITEMIDLIST pidl, DWORD uFlags, LPSTRRET lpName);
STDMETHODIMP SetNameOf(HWND hwnd, LPCITEMIDLIST pidl, LPCOLESTR lpszName, DWORD uFlags,
LPITEMIDLIST * ppidlOut);
// IShellFolder2 methods
STDMETHODIMP GetDefaultSearchGUID(LPGUID lpGuid);
STDMETHODIMP EnumSearches(LPENUMEXTRASEARCH *ppenum);
STDMETHODIMP GetDefaultColumn(DWORD dwRes, ULONG *pSort, ULONG *pDisplay);
STDMETHODIMP GetDefaultColumnState(UINT iColumn, DWORD *pbState);
STDMETHODIMP GetDetailsEx(LPCITEMIDLIST pidl, const SHCOLUMNID *pscid, VARIANT *pv);
STDMETHODIMP GetDetailsOf(LPCITEMIDLIST pidl, UINT iColumn, SHELLDETAILS *pDetails);
STDMETHODIMP MapColumnToSCID(UINT iColumn, SHCOLUMNID *pscid);
// IPersist
STDMETHODIMP GetClassID(LPCLSID lpClassID);
// IPersistFolder
STDMETHODIMP Initialize(LPCITEMIDLIST pidl);
// IPersistFolder2
STDMETHODIMP GetCurFolder(LPITEMIDLIST *ppidl);
// IShellIcon methods
STDMETHODIMP GetIconOf(LPCITEMIDLIST pidl, UINT flags, int *piIndex);
// IShellIconOverlay methods
STDMETHODIMP GetOverlayIndex(LPCITEMIDLIST pidl, int * pIndex);
STDMETHODIMP GetOverlayIconIndex(LPCITEMIDLIST pidl, int * pIndex);
// IContextMenuCB
STDMETHODIMP CallBack(IShellFolder *psf, HWND hwnd, IDataObject *pdtobj, UINT uMsg, WPARAM wParam, LPARAM lParam);
// ITranslateShellChangeNotify
STDMETHODIMP TranslateIDs(LONG *plEvent,
LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2,
LPITEMIDLIST * ppidlOut1, LPITEMIDLIST * ppidlOut2,
LONG *plEvent2, LPITEMIDLIST *ppidlOut1Event2,
LPITEMIDLIST *ppidlOut2Event2);
STDMETHODIMP IsChildID(LPCITEMIDLIST pidlKid, BOOL fImmediate) { return E_NOTIMPL; }
STDMETHODIMP IsEqualID(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2) { return E_NOTIMPL; }
STDMETHODIMP Register(HWND hwnd, UINT uMsg, long lEvents) { return E_NOTIMPL; }
STDMETHODIMP Unregister() { return E_NOTIMPL; }
// IItemNameLimits
STDMETHODIMP GetValidCharacters(LPWSTR *ppwszValidChars, LPWSTR *ppwszInvalidChars);
STDMETHODIMP GetMaxLength(LPCWSTR pszName, int *piMaxNameLen);
// IOleCommandTarget
STDMETHODIMP QueryStatus(const GUID *pguidCmdGroup,
ULONG cCmds, OLECMD rgCmds[], OLECMDTEXT *pcmdtext);
STDMETHODIMP Exec(const GUID *pguidCmdGroup,
DWORD nCmdID, DWORD nCmdexecopt, VARIANTARG *pvarargIn, VARIANTARG *pvarargOut);
CDesktopFolder(IUnknown *punkOuter);
HRESULT _Init();
HRESULT _Init2();
void _Destroy();
private:
~CDesktopFolder();
friend CDesktopFolderEnum;
friend CDesktopViewCallBack;
// IStorage virtuals
STDMETHOD(_DeleteItemByIDList)(LPCITEMIDLIST pidl);
STDMETHOD(_StgCreate)(LPCITEMIDLIST pidl, DWORD grfMode, REFIID riid, void **ppv);
HRESULT _BGCommand(HWND hwnd, WPARAM wparam, BOOL bExecute);
IShellFolder2 *_GetItemFolder(LPCITEMIDLIST pidl);
HRESULT _GetItemUIObject(HWND hwnd, UINT cidl, LPCITEMIDLIST *apidl, REFIID riid, UINT *prgfInOut, void **ppv);
HRESULT _QueryInterfaceItem(LPCITEMIDLIST pidl, REFIID riid, void **ppv);
HRESULT _ChildParseDisplayName(IShellFolder *psfRight, LPCITEMIDLIST pidlLeft, HWND hwnd, IBindCtx *pbc,
LPWSTR pwzDisplayName, ULONG *pchEaten, LPITEMIDLIST *ppidl, DWORD *pdwAttributes);
BOOL _TryUrlJunctions(LPCTSTR pszName, IBindCtx *pbc, IShellFolder **ppsf, LPITEMIDLIST *ppidlLeft);
BOOL _GetFolderForParsing(LPCTSTR pszName, LPBC pbc, IShellFolder **ppsf, LPITEMIDLIST *ppidlLeft);
HRESULT _SelfAssocCreate(REFIID riid, void **ppv);
HRESULT _SelfCreateContextMenu(HWND hwnd, void **ppv);
IShellFolder2 *_psfDesktop; // "Desktop" shell folder (real files live here)
IShellFolder2 *_psfAltDesktop; // "Common Desktop" shell folder
IUnknown *_punkReg; // regitem inner folder (agregate)
CDesktopRootedStub _sfRooted; // rooted folder stub object
CShellUrlStub _sfShellUrl; // handles parsing shell: Urls
CIDListUrlStub _sfIDListUrl; // handles parsing ms-shell-idlist: Urls
CFileUrlStub _sfFileUrl; // handles parsing file: Urls
CHttpUrlStub _sfHttpUrl; // handles parsing http: and https: Urls
};
class CDesktopFolderEnum : public IEnumIDList
{
public:
// IUnknown
STDMETHODIMP QueryInterface(REFIID riid, void **ppv);
STDMETHODIMP_(ULONG) AddRef(void);
STDMETHODIMP_(ULONG) Release(void);
// IEnumIDList
STDMETHOD(Next)(ULONG celt, LPITEMIDLIST *rgelt, ULONG *pceltFetched);
STDMETHOD(Skip)(ULONG celt);
STDMETHOD(Reset)();
STDMETHOD(Clone)(IEnumIDList **ppenum);
CDesktopFolderEnum(CDesktopFolder *pdf, HWND hwnd, DWORD grfFlags);
private:
~CDesktopFolderEnum();
LONG _cRef;
BOOL _bUseAltEnum;
IEnumIDList *_penumFolder;
IEnumIDList *_penumAltFolder;
};
class CDesktopViewCallBack : public CBaseShellFolderViewCB, public IFolderFilter
{
public:
// IUnknown
STDMETHODIMP QueryInterface(REFIID riid, void **ppv);
STDMETHODIMP_(ULONG) AddRef(void) { return CBaseShellFolderViewCB::AddRef(); };
STDMETHODIMP_(ULONG) Release(void) { return CBaseShellFolderViewCB::Release(); };
// IFolderFilter
STDMETHODIMP ShouldShow(IShellFolder* psf, LPCITEMIDLIST pidlFolder, LPCITEMIDLIST pidlItem);
STDMETHODIMP GetEnumFlags(IShellFolder* psf, LPCITEMIDLIST pidlFolder, HWND *phwnd, DWORD *pgrfFlags);
STDMETHODIMP RealMessage(UINT uMsg, WPARAM wParam, LPARAM lParam);
private:
CDesktopViewCallBack(CDesktopFolder* pdf);
friend HRESULT Create_CDesktopViewCallback(CDesktopFolder* pdf, IShellFolderViewCB** ppv);
HRESULT OnSupportsIdentity(DWORD pv);
HRESULT OnGETCCHMAX(DWORD pv, LPCITEMIDLIST pidlItem, UINT *lP);
HRESULT OnGetWebViewTemplate(DWORD pv, UINT uViewMode, SFVM_WEBVIEW_TEMPLATE_DATA* pvit);
HRESULT OnGetWorkingDir(DWORD pv, UINT wP, LPTSTR pszDir);
HRESULT OnGetWebViewLayout(DWORD pv, UINT uViewMode, SFVM_WEBVIEW_LAYOUT_DATA* pData);
CDesktopFolder* _pdf;
BOOL _fCheckedIfRealDesktop;
BOOL _fRealDesktop;
};
HRESULT Create_CDesktopViewCallback(CDesktopFolder* pdf, IShellFolderViewCB** ppv);
class CDesktopFolderDropTarget : public IDropTarget, CObjectWithSite
{
public:
// IUnknown
STDMETHODIMP QueryInterface(REFIID riid, void **ppv);
STDMETHODIMP_(ULONG) AddRef(void);
STDMETHODIMP_(ULONG) Release(void);
// IDropTarget
STDMETHODIMP DragEnter(IDataObject* pDataObject, DWORD grfKeyState, POINTL pt, DWORD* pdwEffect);
STDMETHODIMP DragOver(DWORD grfKeyState, POINTL pt, DWORD* pdwEffect);
STDMETHODIMP Drop(IDataObject* pDataObject, DWORD grfKeyState, POINTL pt, DWORD* pdwEffect);
STDMETHODIMP DragLeave(void);
// IObjectWithSite
STDMETHODIMP SetSite(IUnknown* punkSite);
CDesktopFolderDropTarget(IDropTarget* pdt);
private:
~CDesktopFolderDropTarget();
STDMETHODIMP_(BOOL) _IsSpecialCaseDrop(IDataObject* pDataObject, DWORD grfKeyState, BOOL* pfIsPIDA, UINT* pcItems);
STDMETHODIMP _ShowIEIcon();
IDropTarget* _pdt;
LONG _cRef;
};
// some fields are modified so this can't be const
REQREGITEM g_asDesktopReqItems[] =
{
{
&CLSID_MyComputer, IDS_DRIVEROOT,
TEXT("explorer.exe"), 0, SORT_ORDER_DRIVES,
SFGAO_HASSUBFOLDER | SFGAO_HASPROPSHEET | SFGAO_FILESYSANCESTOR | SFGAO_DROPTARGET | SFGAO_FOLDER | SFGAO_CANRENAME | SFGAO_CANDELETE,
TEXT("SYSDM.CPL")
},
{
&CLSID_NetworkPlaces, IDS_NETWORKROOT,
TEXT("shell32.dll"), -IDI_MYNETWORK, SORT_ORDER_NETWORK,
SFGAO_HASSUBFOLDER | SFGAO_HASPROPSHEET | SFGAO_FILESYSANCESTOR | SFGAO_DROPTARGET | SFGAO_FOLDER | SFGAO_CANRENAME | SFGAO_CANDELETE,
TEXT("NCPA.CPL"),
},
{
&CLSID_Internet, IDS_INETROOT,
TEXT("mshtml.dll"), 0, SORT_ORDER_INETROOT,
SFGAO_BROWSABLE | SFGAO_HASPROPSHEET | SFGAO_CANRENAME,
TEXT("INETCPL.CPL")
},
};
const ITEMIDLIST c_idlDesktop = { { 0, 0 } };
#define DESKTOP_PIDL ((LPITEMIDLIST)&c_idlDesktop)
// single global instance of this CDesktopFolder object
CDesktopFolder *g_pDesktopFolder = NULL;
REGITEMSINFO g_riiDesktop =
{
REGSTR_PATH_EXPLORER TEXT("\\Desktop\\NameSpace"),
NULL,
TEXT(':'),
SHID_ROOT_REGITEM,
1,
SFGAO_CANLINK,
ARRAYSIZE(g_asDesktopReqItems),
g_asDesktopReqItems,
RIISA_ORIGINAL,
NULL,
0,
0,
};
void Desktop_InitRequiredItems(void)
{
// "NoNetHood" restriction -> always hide the hood.
// Otherwise, show the hood if either MPR says so or we have RNA.
if (SHRestricted(REST_NONETHOOD))
{
// Don't enumerate the "Net Hood" thing.
g_asDesktopReqItems[CDESKTOP_REGITEM_NETWORK].dwAttributes |= SFGAO_NONENUMERATED;
}
else
{
// Do enumerate the "My Network" thing.
g_asDesktopReqItems[CDESKTOP_REGITEM_NETWORK].dwAttributes &= ~SFGAO_NONENUMERATED;
}
// "MyComp_NoProp" restriction -> hide Properties context menu entry on My Computer
if (SHRestricted(REST_MYCOMPNOPROP))
{
g_asDesktopReqItems[CDESKTOP_REGITEM_DRIVES].dwAttributes &= ~SFGAO_HASPROPSHEET;
}
//
// "NoInternetIcon" restriction or AppCompat -> hide The Internet on the desktop
//
// Word Perfect 7 faults when it enumerates the Internet item
// in their background thread. For now App hack specific to this app
// later may need to extend... Note: This app does not install on
// NT so only do for W95...
// it repros with Word Perfect Suite 8, too, this time on both NT and 95
// so removing the #ifndef... -- reljai 11/20/97, bug#842 in ie5 db
//
// we used to remove the SFGAO_BROWSABLE flag for both of these cases - ZekeL - 19-Dec-2000
// but ShellExec() needs SFGAO_BROWSABLE so that parsing URLs succeeds
// if it turns out that we need to exclude the BROWSABLE, then we should
// change regfldr to look at a value like "WantsToParseDisplayName" under
// the CLSID. or we could add routing code in deskfldr (like we have for
// MyComputer and NetHood) to pass it to the internet folder directly
//
if (SHRestricted(REST_NOINTERNETICON) || (SHGetAppCompatFlags(ACF_CORELINTERNETENUM) & ACF_CORELINTERNETENUM))
{
// g_asDesktopReqItems[CDESKTOP_REGITEM_INTERNET].dwAttributes &= ~(SFGAO_BROWSABLE);
g_asDesktopReqItems[CDESKTOP_REGITEM_INTERNET].dwAttributes |= SFGAO_NONENUMERATED;
}
}
CDesktopFolder::CDesktopFolder(IUnknown *punkOuter)
{
DllAddRef();
}
CDesktopFolder::~CDesktopFolder()
{
DllRelease();
}
// first phase of init (does not need to be seralized)
HRESULT CDesktopFolder::_Init()
{
Desktop_InitRequiredItems();
return CRegFolder_CreateInstance(&g_riiDesktop, SAFECAST(this, IShellFolder2 *), IID_PPV_ARG(IUnknown, &_punkReg));
}
// second phase of init (needs to be seralized)
HRESULT CDesktopFolder::_Init2()
{
HRESULT hr = SHCacheTrackingFolder(DESKTOP_PIDL, CSIDL_DESKTOPDIRECTORY | CSIDL_FLAG_CREATE, &_psfDesktop);
if (FAILED(hr))
{
DebugMsg(DM_TRACE, TEXT("Failed to create desktop IShellFolder!"));
return hr;
}
if (!SHRestricted(REST_NOCOMMONGROUPS))
{
hr = SHCacheTrackingFolder(DESKTOP_PIDL, CSIDL_COMMON_DESKTOPDIRECTORY, &_psfAltDesktop);
}
return hr;
}
// CLSID_ShellDesktop constructor
STDAPI CDesktop_CreateInstance(IUnknown *punkOuter, REFIID riid, void **ppv)
{
HRESULT hr;
if (g_pDesktopFolder)
{
hr = g_pDesktopFolder->QueryInterface(riid, ppv);
}
else
{
*ppv = NULL;
// WARNING: the order of init of the desktop folder state is very important.
// the creation of the sub folders, in particular _psfAltDesktop will
// recurse on this function. we protect ourself from that here. the creation
// of that also requires the above members to be inited.
CDesktopFolder *pdf = new CDesktopFolder(punkOuter);
if (pdf)
{
hr = pdf->_Init();
if (SUCCEEDED(hr))
{
// NOTE: there is a race condition here where we have stored g_pDesktopFolder but
// not initialized _psfDesktop & _psfAltDesktop. the main line code deals with
// this by testing for NULL on these members.
if (SHInterlockedCompareExchange((void **)&g_pDesktopFolder, pdf, 0))
{
// Someone else beat us to creating the object.
// get rid of our copy, global already set (the race case)
pdf->_Destroy();
}
else
{
g_pDesktopFolder->_Init2();
}
hr = g_pDesktopFolder->QueryInterface(riid, ppv);
}
else
pdf->_Destroy();
}
else
hr = E_OUTOFMEMORY;
}
return hr;
}
STDAPI SHGetDesktopFolder(IShellFolder **ppshf)
{
return CDesktop_CreateInstance(NULL, IID_PPV_ARG(IShellFolder, ppshf));
}
IShellFolder2 *CDesktopFolder::_GetItemFolder(LPCITEMIDLIST pidl)
{
IShellFolder2 *psf = NULL;
if (ILIsRooted(pidl))
psf = SAFECAST(&_sfRooted, IShellFolder2 *);
else if (_psfAltDesktop && CFSFolder_IsCommonItem(pidl))
psf = _psfAltDesktop;
else
psf = _psfDesktop;
return psf;
}
HRESULT CDesktopFolder::_QueryInterfaceItem(LPCITEMIDLIST pidl, REFIID riid, void **ppv)
{
HRESULT hr;
IShellFolder2 *psf = _GetItemFolder(pidl);
if (psf)
hr = psf->QueryInterface(riid, ppv);
else
{
*ppv = NULL;
hr = E_NOINTERFACE;
}
return hr;
}
STDAPI_(BOOL) RegGetsFirstShot(REFIID riid)
{
return (IsEqualIID(riid, IID_IShellFolder) ||
IsEqualIID(riid, IID_IShellFolder2) ||
IsEqualIID(riid, IID_IShellIconOverlay));
}
HRESULT CDesktopFolder::QueryInterface(REFIID riid, void **ppv)
{
static const QITAB qit[] = {
QITABENT(CDesktopFolder, IShellFolder2),
QITABENTMULTI(CDesktopFolder, IShellFolder, IShellFolder2),
QITABENT(CDesktopFolder, IShellIcon),
QITABENT(CDesktopFolder, IPersistFolder2),
QITABENTMULTI(CDesktopFolder, IPersistFolder, IPersistFolder2),
QITABENTMULTI(CDesktopFolder, IPersist, IPersistFolder2),
QITABENT(CDesktopFolder, IShellIconOverlay),
QITABENT(CDesktopFolder, IStorage),
QITABENT(CDesktopFolder, IContextMenuCB),
QITABENT(CDesktopFolder, IObjectWithSite),
QITABENT(CDesktopFolder, ITranslateShellChangeNotify),
QITABENT(CDesktopFolder, IItemNameLimits),
QITABENT(CDesktopFolder, IOleCommandTarget),
{ 0 },
};
if (IsEqualIID(riid, CLSID_ShellDesktop))
{
*ppv = this; // class pointer (unrefed!)
return S_OK;
}
HRESULT hr;
if (_punkReg && RegGetsFirstShot(riid))
{
hr = _punkReg->QueryInterface(riid, ppv);
}
else
{
hr = QISearch(this, qit, riid, ppv);
if ((E_NOINTERFACE == hr) && _punkReg)
{
hr = _punkReg->QueryInterface(riid, ppv);
}
}
return hr;
}
// During shell32.dll process detach, we will call here to do the final
// release of the IShellFolder ptrs which used to be left around for the
// life of the process. This quiets things such as OLE's debug allocator,
// which detected the leak.
void CDesktopFolder::_Destroy()
{
ATOMICRELEASE(_psfDesktop);
ATOMICRELEASE(_psfAltDesktop);
SHReleaseInnerInterface(SAFECAST(this, IShellFolder *), &_punkReg);
delete this;
}
LPITEMIDLIST CreateMyComputerIDList()
{
return ILCreateFromPath(TEXT("::{20D04FE0-3AEA-1069-A2D8-08002B30309D}")); // CLSID_MyComputer
}
LPITEMIDLIST CreateWebFoldersIDList()
{
return ILCreateFromPath(TEXT("::{20D04FE0-3AEA-1069-A2D8-08002B30309D}\\::{BDEADF00-C265-11D0-BCED-00A0C90AB50F}")); // CLSID_MyComputer\CLSID_WebFolders
}
LPITEMIDLIST CreateMyNetPlacesIDList()
{
return ILCreateFromPath(TEXT("::{208D2C60-3AEA-1069-A2D7-08002B30309D}")); // CLSID_NetworkPlaces
}
HRESULT CDesktopFolder::_ChildParseDisplayName(IShellFolder *psfRight, LPCITEMIDLIST pidlLeft, HWND hwnd, IBindCtx *pbc,
LPWSTR pwzDisplayName, ULONG *pchEaten, LPITEMIDLIST *ppidl, DWORD *pdwAttributes)
{
LPITEMIDLIST pidlRight;
HRESULT hr = psfRight->ParseDisplayName(hwnd, pbc,
pwzDisplayName, pchEaten, &pidlRight, pdwAttributes);
if (SUCCEEDED(hr))
{
if (pidlLeft)
{
hr = SHILCombine(pidlLeft, pidlRight, ppidl);
ILFree(pidlRight);
}
else
*ppidl = pidlRight;
}
return hr;
}
STDMETHODIMP CDesktopRootedStub::GetUIObjectOf(HWND hwnd, UINT cidl, LPCITEMIDLIST * apidl,
REFIID riid, UINT *prgfInOut, void **ppv)
{
HRESULT hr = E_INVALIDARG;
if (cidl == 1)
{
if (IsEqualIID(riid, IID_IDataObject))
{
hr = CIDLData_CreateFromIDArray(&c_idlDesktop, cidl, apidl, (IDataObject **)ppv);
}
else if (IsEqualIID(riid, IID_IContextMenu))
{
IQueryAssociations *pqa;
if (SUCCEEDED(SHGetAssociations(apidl[0], (void **)&pqa)))
{
HKEY keys[5];
DWORD cKeys = SHGetAssocKeys(pqa, keys, ARRAYSIZE(keys));
hr = CDefFolderMenu_Create2Ex(&c_idlDesktop, hwnd,
cidl, apidl, this, this,
cKeys, keys, (IContextMenu **)ppv);
SHRegCloseKeys(keys, cKeys);
}
}
else
{
LPCITEMIDLIST pidlChild;
IShellFolder *psf;
hr = ILRootedBindToParentFolder(apidl[0], IID_PPV_ARG(IShellFolder, &psf), &pidlChild);
if (SUCCEEDED(hr))
{
hr = psf->GetUIObjectOf(hwnd, 1, &pidlChild, riid, prgfInOut, ppv);
psf->Release();
}
}
}
return hr;
}
// Check the registry for a shell root under this CLSID.
BOOL GetRootFromRootClass(CLSID *pclsid, LPWSTR pszPath, int cchPath)
{
WCHAR szClsid[GUIDSTR_MAX];
WCHAR szClass[MAX_PATH];
SHStringFromGUIDW(*pclsid, szClsid, ARRAYSIZE(szClsid));
wnsprintfW(szClass, ARRAYSIZE(szClass), L"CLSID\\%s\\ShellExplorerRoot", szClsid);
DWORD cbPath = cchPath * sizeof(WCHAR);
return SHGetValueGoodBootW(HKEY_CLASSES_ROOT, szClass, NULL, NULL, (BYTE *)pszPath, &cbPath) == ERROR_SUCCESS;
}
//
// General form for Rooted URLs:
// ms-shell-root:{clsid}?URL
// {CLSID} is not required, defaults to CLSID_ShellDesktop
// URL is also not required. if there is a CLSID defaults to
// what is specified under "CLSID\{CLSID}\ShellExplorerRoot
// or default to CSIDL_DESKTOP
// but one of them at least must be specified
// rooted:{clsid}?idlist
//
STDMETHODIMP CDesktopRootedStub::ParseDisplayName(HWND hwnd,
LPBC pbc, WCHAR *pwzDisplayName, ULONG *pchEaten,
LPITEMIDLIST *ppidl, ULONG *pdwAttributes)
{
// Need to keep the internet SF from getting a chance to parse
HRESULT hr = HRESULT_FROM_WIN32(ERROR_PATH_NOT_FOUND);
PARSEDURLW pu = {0};
pu.cbSize = sizeof(pu);
ParseURLW(pwzDisplayName, &pu);
ASSERT(pu.nScheme == URL_SCHEME_MSSHELLROOTED);
LPCWSTR pszUrl = StrChrW(pu.pszSuffix, L':');
if (pszUrl++)
{
WCHAR szField[MAX_PATH];
CLSID clsid;
CLSID *pclsidRoot = GUIDFromStringW(pu.pszSuffix, &clsid) ? &clsid : NULL;
// path might come from the registry
// if nothing was passed in.
if (!*pszUrl && GetRootFromRootClass(pclsidRoot, szField, ARRAYSIZE(szField)))
{
pszUrl = szField;
}
if (pclsidRoot || *pszUrl)
{
LPITEMIDLIST pidlRoot = ILCreateFromPathW(pszUrl);
// fix up bad cmd line "explorer.exe /root," case
if (!pidlRoot)
SHGetSpecialFolderLocation(NULL, CSIDL_DESKTOP, &pidlRoot);
if (pidlRoot)
{
*ppidl = ILRootedCreateIDList(pclsidRoot, pidlRoot);
if (*ppidl)
hr = S_OK;
ILFree(pidlRoot);
}
}
}
return hr;
}
STDMETHODIMP CIDListUrlStub::ParseDisplayName(HWND hwnd, LPBC pbc, WCHAR *pwzDisplayName,
ULONG *pchEaten, LPITEMIDLIST *ppidl, ULONG *pdwAttributes)
{
// Need to keep the internet SF from getting a chance to parse
HRESULT hr = HRESULT_FROM_WIN32(ERROR_PATH_NOT_FOUND);
PARSEDURLW pu = {0};
pu.cbSize = sizeof(pu);
ParseURLW(pwzDisplayName, &pu);
ASSERT(pu.nScheme == URL_SCHEME_MSSHELLIDLIST);
LPCWSTR psz = pu.pszSuffix;
if (psz)
{
HANDLE hMem = LongToHandle(StrToIntW(psz));
psz = StrChrW(psz, TEXT(':'));
if (psz++)
{
DWORD dwProcId = (DWORD)StrToIntW(psz);
LPITEMIDLIST pidlGlobal = (LPITEMIDLIST) SHLockShared(hMem, dwProcId);
if (pidlGlobal)
{
if (!IsBadReadPtr(pidlGlobal, 1))
hr = SHILClone(pidlGlobal, ppidl);
SHUnlockShared(pidlGlobal);
SHFreeShared(hMem, dwProcId);
}
}
}
return hr;
}
STDMETHODIMP CFileUrlStub::ParseDisplayName(HWND hwnd, LPBC pbc, WCHAR *pwzDisplayName,
ULONG *pchEaten, LPITEMIDLIST *ppidl, ULONG *pdwAttributes)
{
LPCWSTR pszFragment = UrlGetLocationW(pwzDisplayName);
WCHAR szPath[MAX_URL_STRING];
DWORD cchPath = ARRAYSIZE(szPath);
WCHAR szQuery[MAX_URL_STRING];
DWORD cchQuery = ARRAYSIZE(szQuery) - 1;
// We want to remove QUERY and FRAGMENT sections of
// FILE URLs because they need to be added in "Hidden" pidls.
// Also, URLs need to be escaped all the time except for paths
// to facility parsing and because we already removed all other
// parts of the URL (Query and Fragment).
ASSERT(UrlIsW(pwzDisplayName, URLIS_FILEURL));
if (SUCCEEDED(UrlGetPartW(pwzDisplayName, szQuery+1, &cchQuery, URL_PART_QUERY, 0)) && cchQuery)
szQuery[0] = TEXT('?');
else
szQuery[0] = 0;
if (SUCCEEDED(PathCreateFromUrlW(pwzDisplayName, szPath, &cchPath, 0)))
{
// WARNING - we skip supporting simple ids here
ILCreateFromPathEx(szPath, NULL, ILCFP_FLAG_NORMAL, ppidl, pdwAttributes);
if (*ppidl && pszFragment)
{
*ppidl = ILAppendHiddenStringW(*ppidl, IDLHID_URLFRAGMENT, pszFragment);
}
if (*ppidl && szQuery[0] == TEXT('?'))
{
*ppidl = ILAppendHiddenStringW(*ppidl, IDLHID_URLQUERY, szQuery);
}
E_OUTOFMEMORY;
}
// Need to keep the internet SF from getting a chance to parse
return *ppidl ? S_OK : HRESULT_FROM_WIN32(ERROR_PATH_NOT_FOUND);
}
STDAPI_(int) SHGetSpecialFolderID(LPCWSTR pszName);
//
// Given a string of the form
//
// programs\My Pictures\Vacation
//
//
// return CSIDL_PROGRAMS and set ppwszUnparsed to "My Pictures\Vacation".
//
// If there is no backslash, then ppwszUnparsed = NULL.
//
// This function is broken out of CShellUrlStub::ParseDisplayName() to conserve stack space,
// since ParseDisplayName is used by 16-bit ShellExecute.
STDAPI_(int) _ParseSpecialFolder(LPCWSTR pszName, LPWSTR *ppwszUnparsed, ULONG *pcchEaten)
{
LPCWSTR pwszKey;
WCHAR wszKey[MAX_PATH];
LPWSTR pwszBS = StrChrW(pszName, L'\\');
if (pwszBS)
{
*ppwszUnparsed = pwszBS + 1;
*pcchEaten = (ULONG)(pwszBS + 1 - pszName);
StrCpyNW(wszKey, pszName, min(*pcchEaten, MAX_PATH));
pwszKey = wszKey;
}
else
{
*ppwszUnparsed = NULL;
pwszKey = pszName;
*pcchEaten = lstrlenW(pwszKey);
}
return SHGetSpecialFolderID(pwszKey);
}
STDMETHODIMP CShellUrlStub::ParseDisplayName(HWND hwnd,
LPBC pbc, WCHAR *pwzDisplayName, ULONG *pchEaten,
LPITEMIDLIST *ppidl, ULONG *pdwAttributes)
{
PARSEDURLW pu = {0};
pu.cbSize = sizeof(pu);
EVAL(SUCCEEDED(ParseURLW(pwzDisplayName, &pu)));
// Need to keep the internet SF from getting a chance to parse
// the shell: URLs even if we fail to parse it
HRESULT hr = HRESULT_FROM_WIN32(ERROR_PATH_NOT_FOUND);
ASSERT(pu.nScheme == URL_SCHEME_SHELL);
// shell:::{guid}
if (pu.pszSuffix[0] == L':' && pu.pszSuffix[1] == L':')
{
IShellFolder *psfDesktop;
hr = SHGetDesktopFolder(&psfDesktop);
if (SUCCEEDED(hr))
{
IBindCtx *pbcCreate=NULL;
hr = CreateBindCtx(0, &pbcCreate);
if (SUCCEEDED(hr))
{
BIND_OPTS bo = {sizeof(bo)}; // Requires size filled in.
bo.grfMode = STGM_CREATE;
pbcCreate->SetBindOptions(&bo);
hr = psfDesktop->ParseDisplayName(hwnd, pbcCreate, (LPWSTR)pu.pszSuffix, pchEaten, ppidl, pdwAttributes);
pbcCreate->Release();
}
psfDesktop->Release();
}
}
else
{ // shell:personal\My Pictures
LPWSTR pwszUnparsed = NULL;
ULONG cchEaten;
int csidl = _ParseSpecialFolder(pu.pszSuffix, &pwszUnparsed, &cchEaten);
if (-1 != csidl)
{
LPITEMIDLIST pidlCSIDL;
hr = SHGetFolderLocation(hwnd, csidl | CSIDL_FLAG_CREATE, NULL, 0, &pidlCSIDL);
if (SUCCEEDED(hr))
{
if (pwszUnparsed && *pwszUnparsed)
{
IShellFolder *psf;
hr = SHBindToObject(NULL, IID_X_PPV_ARG(IShellFolder, pidlCSIDL, &psf));
if (SUCCEEDED(hr))
{
LPITEMIDLIST pidlChild;
hr = psf->ParseDisplayName(hwnd, pbc, pwszUnparsed, pchEaten,
&pidlChild, pdwAttributes);
if (SUCCEEDED(hr))
{
hr = SHILCombine(pidlCSIDL, pidlChild, ppidl);
ILFree(pidlChild);
if (pchEaten) *pchEaten += cchEaten;
}
psf->Release();
}
ILFree(pidlCSIDL);
}
else
{
if (pdwAttributes && *pdwAttributes)
{
hr = SHGetNameAndFlags(pidlCSIDL, 0, NULL, 0, pdwAttributes);
}
if (SUCCEEDED(hr))
{
if (pchEaten) *pchEaten = cchEaten;
*ppidl = pidlCSIDL;
}
else
ILFree(pidlCSIDL);
}
}
}
}
return hr;
}
// key for the DAVRDR so that we can read the localised provider name.
#define DAVRDR_KEY TEXT("SYSTEM\\CurrentControlSet\\Services\\WebClient\\NetworkProvider")
STDMETHODIMP CHttpUrlStub::ParseDisplayName(HWND hwnd,
LPBC pbc, WCHAR *pwzDisplayName, ULONG *pchEaten,
LPITEMIDLIST *ppidl, ULONG *pdwAttributes)
{
HRESULT hr = E_INVALIDARG;
PARSEDURLW pu = {0};
pu.cbSize = sizeof(pu);
ParseURLW(pwzDisplayName, &pu);
// we cant handle anything but simple URLs here, and only HTTP (not HTTPS).
if (!UrlGetLocationW(pwzDisplayName)
&& !StrChrW(pu.pszSuffix, L'?')
&& (lstrlen(pu.pszSuffix) < MAX_PATH)
&& (pu.nScheme == URL_SCHEME_HTTP))
{
// convert from wacky http: to something that the RDR will pick up as a UNC,
// given that this is being forwarded directly to the DAV RDR.
//
// http://server/share -> \\server\share
WCHAR sz[MAX_PATH];
StrCpyN(sz, pu.pszSuffix, ARRAYSIZE(sz));
for (LPWSTR psz = sz; *psz; psz++)
{
if (*psz == L'/')
{
*psz = L'\\';
}
}
// this forces the use of the DavRedir as the provider
// thus avoiding any confusion...
IPropertyBag *ppb;
hr = SHCreatePropertyBagOnMemory(STGM_READWRITE, IID_PPV_ARG(IPropertyBag, &ppb));
if (SUCCEEDED(hr))
{
TCHAR szProvider[MAX_PATH];
DWORD cbProvider = sizeof (szProvider);
if (ERROR_SUCCESS == SHGetValue(HKEY_LOCAL_MACHINE, DAVRDR_KEY, TEXT("Name"), NULL, szProvider, &cbProvider))
{
hr = SHPropertyBag_WriteStr(ppb, STR_PARSE_NETFOLDER_PROVIDERNAME, szProvider);
if (SUCCEEDED(hr))
{
hr = pbc->RegisterObjectParam(STR_PARSE_NETFOLDER_INFO, ppb);
if (SUCCEEDED(hr))
{
// add a UI bindctx if necessary
IBindCtx *pbcRelease = NULL;
if (hwnd && !BindCtx_GetUIWindow(pbc))
{
// returns a reference to our pbc in pbcRelease
BindCtx_RegisterUIWindow(pbc, hwnd, &pbcRelease);
}
hr = SHParseDisplayName(sz, pbc, ppidl, pdwAttributes ? *pdwAttributes : 0, pdwAttributes);
if (pbcRelease)
pbc->Release();
}
}
}
else
{
hr = E_FAIL;
}
ppb->Release();
}
}
if (FAILED(hr) && !BindCtx_ContainsObject(pbc, L"BUT NOT WEBFOLDERS"))
{
// fall back to webfolders
LPITEMIDLIST pidlParent = CreateWebFoldersIDList();
if (pidlParent)
{
IShellFolder *psf;
hr = SHBindToObjectEx(NULL, pidlParent, NULL, IID_PPV_ARG(IShellFolder, &psf));
if (SUCCEEDED(hr))
{
LPITEMIDLIST pidlRight;
// always pass NULL for the HWND. webfolders shows really bad UI
hr = psf->ParseDisplayName(NULL, pbc, pwzDisplayName, pchEaten, &pidlRight, pdwAttributes);
if (SUCCEEDED(hr))
{
hr = SHILCombine(pidlParent, pidlRight, ppidl);
ILFree(pidlRight);
}
psf->Release();
}
ILFree(pidlParent);
}
}
return hr;
}
HKEY _RegOpenSchemeJunctionKey(LPCTSTR pszScheme)
{
HKEY hk = NULL;
TCHAR sz[MAX_PATH];
wnsprintf(sz, ARRAYSIZE(sz), TEXT("%s\\ShellEx\\Junction"), pszScheme);
RegOpenKeyEx(HKEY_CLASSES_ROOT, sz, 0, KEY_READ, &hk);
return hk;
}
BOOL _TryRegisteredUrlJunction(LPCTSTR pszName, DWORD cchName, IShellFolder **ppsf, LPITEMIDLIST *ppidlLeft)
{
TCHAR sz[MAX_PATH];
StrCpyN(sz, pszName, (int)min(ARRAYSIZE(sz), cchName + 1));
HKEY hk = _RegOpenSchemeJunctionKey(sz);
if (hk)
{
DWORD cbSize;
// try for IDList
if (S_OK == SHGetValue(hk, NULL, TEXT("IDList"), NULL, NULL, &cbSize))
{
LPITEMIDLIST pidl= (LPITEMIDLIST) SHAlloc(cbSize);
if (pidl)
{
if (S_OK == SHGetValue(hk, NULL, TEXT("IDList"), NULL, pidl, &cbSize))
{
*ppidlLeft = pidl;
}
else
SHFree(pidl);
}
}
else
{
cbSize = sizeof(sz);
if (S_OK == SHGetValue(hk, NULL, TEXT("Path"), NULL, sz, &cbSize))
{
// maybe we should ILCFP_FLAG_SKIPJUNCTIONS?
ILCreateFromPathEx(sz, NULL, ILCFP_FLAG_NORMAL, ppidlLeft, NULL);
}
else
{
CLSID clsid;
cbSize = sizeof(sz);
if (S_OK == SHGetValue(hk, NULL, TEXT("CLSID"), NULL, sz, &cbSize)
&& GUIDFromString(sz, &clsid))
{
SHCoCreateInstance(NULL, &clsid, NULL, IID_PPV_ARG(IShellFolder, ppsf));
}
}
}
RegCloseKey(hk);
return (*ppsf || *ppidlLeft);
}
return FALSE;
}
BOOL CDesktopFolder::_TryUrlJunctions(LPCTSTR pszName, IBindCtx *pbc, IShellFolder **ppsf, LPITEMIDLIST *ppidlLeft)
{
PARSEDURL pu = {0};
pu.cbSize = sizeof(pu);
EVAL(SUCCEEDED(ParseURL(pszName, &pu)));
ASSERT(!*ppsf);
ASSERT(!*ppidlLeft);
switch (pu.nScheme)
{
case URL_SCHEME_SHELL:
*ppsf = SAFECAST(&_sfShellUrl, IShellFolder *);
break;
case URL_SCHEME_FILE:
*ppsf = SAFECAST(&_sfFileUrl, IShellFolder *);
break;
case URL_SCHEME_MSSHELLROOTED:
*ppsf = SAFECAST(&_sfRooted, IShellFolder *);
break;
case URL_SCHEME_MSSHELLIDLIST:
*ppsf = SAFECAST(&_sfIDListUrl, IShellFolder *);
break;
case URL_SCHEME_HTTP:
case URL_SCHEME_HTTPS:
if (BindCtx_ContainsObject(pbc, STR_PARSE_PREFER_FOLDER_BROWSING))
*ppsf = SAFECAST(&_sfHttpUrl, IShellFolder *);
break;
default:
// _TryRegisteredUrlJunction(pu.pszProtocol, pu.cchProtocol, ppsf, ppidlLeft)
break;
}
return (*ppsf || *ppidlLeft);
}
BOOL _FailForceReturn(HRESULT hr);
BOOL CDesktopFolder::_GetFolderForParsing(LPCTSTR pszName, LPBC pbc, IShellFolder **ppsf, LPITEMIDLIST *ppidlLeft)
{
ASSERT(!*ppidlLeft);
ASSERT(!*ppsf);
if ((InRange(pszName[0], TEXT('A'), TEXT('Z')) ||
InRange(pszName[0], TEXT('a'), TEXT('z'))) &&
pszName[1] == TEXT(':'))
{
// The string contains a path, let "My Computer" figire it out.
*ppidlLeft = CreateMyComputerIDList();
}
else if (PathIsUNC(pszName))
{
// The path is UNC, let "World" figure it out.
*ppidlLeft = CreateMyNetPlacesIDList();
}
else if (UrlIs(pszName, URLIS_URL) && !SHSkipJunctionBinding(pbc, NULL))
{
_TryUrlJunctions(pszName, pbc, ppsf, ppidlLeft);
}
if (!*ppsf && *ppidlLeft)
SHBindToObject(NULL, IID_X_PPV_ARG(IShellFolder, *ppidlLeft, ppsf));
return (*ppsf != NULL);
}
STDMETHODIMP CDesktopFolder::ParseDisplayName(HWND hwnd,
LPBC pbc, WCHAR *pwzDisplayName, ULONG *pchEaten,
LPITEMIDLIST *ppidl, ULONG *pdwAttributes)
{
HRESULT hr = E_INVALIDARG;
if (ppidl)
{
*ppidl = NULL; // assume error
if (pwzDisplayName && *pwzDisplayName)
{
LPITEMIDLIST pidlLeft = NULL;
IShellFolder *psfRight = NULL;
ASSERT(hr == E_INVALIDARG);
if (_GetFolderForParsing(pwzDisplayName, pbc, &psfRight, &pidlLeft))
{
if (pchEaten)
*pchEaten = 0;
hr = _ChildParseDisplayName(psfRight, pidlLeft, hwnd, pbc, pwzDisplayName, pchEaten, ppidl, pdwAttributes);
ILFree(pidlLeft);
psfRight->Release();
}
if (SUCCEEDED(hr))
{
// translate aliases here for goodness sake
if (BindCtx_ContainsObject(pbc, STR_PARSE_TRANSLATE_ALIASES))
{
LPITEMIDLIST pidlAlias;
if (SUCCEEDED(SHILAliasTranslate(*ppidl, &pidlAlias, XLATEALIAS_ALL)))
{
ILFree(*ppidl);
*ppidl = pidlAlias;
}
}
}
else if (FAILED(hr) && !_FailForceReturn(hr))
{
//
// MIL 131297 - desktop did not support relative simple parses - ZekeL - 3-FEB-2000
// it was only the roots (drives/net) that would create simple IDs
// so for some apps we need to still not do it.
//
if (BindCtx_ContainsObject(pbc, STR_DONT_PARSE_RELATIVE))
{
// we're told not to parse relative paths and _GetFolderForParsing failed
// so act like we don't think the path exists.
hr = E_INVALIDARG;
}
else if (S_OK != SHIsFileSysBindCtx(pbc, NULL))
{
// when we request that something be created, we need to
// check both folders and make sure that it doesnt exist in
// either one. and then try and create it in the user folder
BIND_OPTS bo = {sizeof(bo)};
BOOL fCreate = FALSE;
if (pbc && SUCCEEDED(pbc->GetBindOptions(&bo)) &&
(bo.grfMode & STGM_CREATE))
{
fCreate = TRUE;
bo.grfMode &= ~STGM_CREATE;
pbc->SetBindOptions(&bo);
}
// give the users desktop first shot.
// This must be a desktop item, _psfDesktop may not be inited in
// the case where we are called from ILCreateFromPath()
if (_psfDesktop)
hr = _psfDesktop->ParseDisplayName(hwnd, pbc, pwzDisplayName, pchEaten, ppidl, pdwAttributes);
// if the normal desktop folder didnt pick it off,
// it could be in the allusers folder. give psfAlt a chance.
if (FAILED(hr) && _psfAltDesktop)
{
hr = _psfAltDesktop->ParseDisplayName(hwnd, pbc, pwzDisplayName, pchEaten, ppidl, pdwAttributes);
}
// neither of the folders can identify an existing item
// so we should pass the create flag to the real desktop
if (FAILED(hr) && fCreate && _psfDesktop)
{
bo.grfMode |= STGM_CREATE;
pbc->SetBindOptions(&bo);
hr = _psfDesktop->ParseDisplayName(hwnd, pbc, pwzDisplayName, pchEaten, ppidl, pdwAttributes);
// when this succeeds, we know we got a magical ghost pidl...
}
}
}
}
else if (pwzDisplayName)
{
// we used to return this pidl when passed an empty string
// some apps (such as Wright Design) depend on this behavior
hr = SHILClone((LPCITEMIDLIST)&c_idlDrives, ppidl);
}
}
return hr;
}
STDAPI_(void) UltRoot_Term()
{
if (g_pDesktopFolder)
{
g_pDesktopFolder->_Destroy();
g_pDesktopFolder = NULL;
}
}
HRESULT CDesktopFolder::EnumObjects(HWND hwnd, DWORD grfFlags, IEnumIDList **ppenum)
{
*ppenum = new CDesktopFolderEnum(this, hwnd, grfFlags);
return *ppenum ? S_OK : E_OUTOFMEMORY;
}
STDMETHODIMP CDesktopFolder::BindToObject(LPCITEMIDLIST pidl, LPBC pbc, REFIID riid, void **ppv)
{
// note: using IsSelf() here will cause a problem with WinZip. they expect
// failure when they pass an empty pidl. SHBindToOjbect() has the special
// case for the desktop, so it is not needed here.
IShellFolder2 *psf = _GetItemFolder(pidl);
if (psf)
return psf->BindToObject(pidl, pbc, riid, ppv);
return E_UNEXPECTED;
}
STDMETHODIMP CDesktopFolder::BindToStorage(LPCITEMIDLIST pidl, LPBC pbc, REFIID riid, void **ppv)
{
return BindToObject(pidl, pbc, riid, ppv);
}
STDMETHODIMP CDesktopFolder::CompareIDs(LPARAM lParam, LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
{
if (pidl1 == NULL || pidl2 == NULL)
return E_INVALIDARG;
if (pidl1->mkid.cb == 0 && pidl2->mkid.cb == 0)
return ResultFromShort(0); // 2 empty IDLists, they are the same
if (ILIsRooted(pidl1) || ILIsRooted(pidl2))
{
return _sfRooted.CompareIDs(lParam, pidl1, pidl2);
}
// If both objects aren't from the same directory, they won't match.
else if (_psfAltDesktop)
{
if (CFSFolder_IsCommonItem(pidl1))
{
if (CFSFolder_IsCommonItem(pidl2))
return _psfAltDesktop->CompareIDs(lParam, pidl1, pidl2);
else
return ResultFromShort(-1);
}
else
{
if (CFSFolder_IsCommonItem(pidl2))
return ResultFromShort(1);
else if (_psfDesktop)
return _psfDesktop->CompareIDs(lParam, pidl1, pidl2);
}
}
else if (_psfDesktop)
{
return _psfDesktop->CompareIDs(lParam, pidl1, pidl2);
}
// If we have no _psfDesktop, we get here...
return ResultFromShort(-1);
}
HRESULT CDesktopFolder::_BGCommand(HWND hwnd, WPARAM wparam, BOOL bExecute)
{
HRESULT hr = S_OK;
switch (wparam)
{
case DFM_CMD_PROPERTIES:
case FSIDM_PROPERTIESBG:
if (bExecute)
{
// run the default applet in desk.cpl
if (SHRunControlPanel( TEXT("desk.cpl"), hwnd ))
hr = S_OK;
else
hr = E_OUTOFMEMORY;
}
break;
case DFM_CMD_MOVE:
case DFM_CMD_COPY:
hr = E_FAIL;
break;
default:
// This is common menu items, use the default code.
hr = S_FALSE;
break;
}
return hr;
}
// IContextMenuCB::CallBack for the background context menu
//
// Returns:
// S_OK, if successfully processed.
// S_FALSE, if default code should be used.
STDMETHODIMP CDesktopFolder::CallBack(IShellFolder *psf, HWND hwnd, IDataObject *pdtobj, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
HRESULT hr = S_OK;
switch (uMsg)
{
case DFM_MERGECONTEXTMENU_BOTTOM:
if (!(wParam & (CMF_VERBSONLY | CMF_DVFILE)))
{
// Only add the desktop background Properties iff we're the real desktop browser
// (i.e., we don't want it when in explorer)
//
if (IsDesktopBrowser(_punkSite))
{
LPQCMINFO pqcm = (LPQCMINFO)lParam;
UINT idCmdFirst = pqcm->idCmdFirst;
CDefFolderMenu_MergeMenu(HINST_THISDLL, POPUP_PROPERTIES_BG, 0, pqcm);
}
}
break;
case DFM_GETHELPTEXT:
LoadStringA(HINST_THISDLL, LOWORD(wParam) + IDS_MH_FSIDM_FIRST, (LPSTR)lParam, HIWORD(wParam));;
break;
case DFM_GETHELPTEXTW:
LoadStringW(HINST_THISDLL, LOWORD(wParam) + IDS_MH_FSIDM_FIRST, (LPWSTR)lParam, HIWORD(wParam));;
break;
case DFM_INVOKECOMMAND:
case DFM_VALIDATECMD:
hr = _BGCommand(hwnd, wParam, uMsg == DFM_INVOKECOMMAND);
break;
default:
hr = E_NOTIMPL;
break;
}
return hr;
}
// IItemNameLimits
STDMETHODIMP CDesktopFolder::GetValidCharacters(LPWSTR *ppwszValidChars, LPWSTR *ppwszInvalidChars)
{
IItemNameLimits *pinl;
HRESULT hr = _QueryInterfaceItem(NULL, IID_PPV_ARG(IItemNameLimits, &pinl));
if (SUCCEEDED(hr))
{
hr = pinl->GetValidCharacters(ppwszValidChars, ppwszInvalidChars);
pinl->Release();
}
return hr;
}
STDMETHODIMP CDesktopFolder::GetMaxLength(LPCWSTR pszName, int *piMaxNameLen)
{
// delegate to per user or common based on which name space
// pszName is from (we have to search for that)
IItemNameLimits *pinl;
HRESULT hr = _QueryInterfaceItem(NULL, IID_PPV_ARG(IItemNameLimits, &pinl));
if (SUCCEEDED(hr))
{
hr = pinl->GetMaxLength(pszName, piMaxNameLen);
pinl->Release();
}
return hr;
}
// IOleCommandTarget stuff
STDMETHODIMP CDesktopFolder::QueryStatus(const GUID *pguidCmdGroup, ULONG cCmds, OLECMD rgCmds[], OLECMDTEXT *pcmdtext)
{
return IUnknown_QueryStatus(_psfDesktop, pguidCmdGroup, cCmds, rgCmds, pcmdtext);
}
STDMETHODIMP CDesktopFolder::Exec(const GUID *pguidCmdGroup, DWORD nCmdID, DWORD nCmdexecopt, VARIANTARG *pvarargIn, VARIANTARG *pvarargOut)
{
// invalidate our cache
// which we dont really have right now.
// but CFSFolder does
IUnknown_Exec(_psfAltDesktop, pguidCmdGroup, nCmdID, nCmdexecopt, pvarargIn, pvarargOut);
return IUnknown_Exec(_psfDesktop, pguidCmdGroup, nCmdID, nCmdexecopt, pvarargIn, pvarargOut);
}
STDMETHODIMP CDesktopFolder::CreateViewObject(HWND hwnd, REFIID riid, void **ppv)
{
HRESULT hr = E_NOINTERFACE;
*ppv = NULL;
if (IsEqualIID(riid, IID_IShellView))
{
IShellFolderViewCB* psfvcb;
if (SUCCEEDED(Create_CDesktopViewCallback(this, &psfvcb)))
{
SFV_CREATE sfvc = {0};
sfvc.cbSize = sizeof(sfvc);
sfvc.psfvcb = psfvcb;
hr = QueryInterface(IID_PPV_ARG(IShellFolder, &sfvc.pshf)); // in case we are agregated
if (SUCCEEDED(hr))
{
hr = SHCreateShellFolderView(&sfvc, (IShellView**)ppv);
sfvc.pshf->Release();
}
psfvcb->Release();
}
}
else if (IsEqualIID(riid, IID_IDropTarget) && _psfDesktop)
{
IDropTarget* pdt;
if (SUCCEEDED(_psfDesktop->CreateViewObject(hwnd, riid, (void**)&pdt)))
{
CDesktopFolderDropTarget* pdfdt = new CDesktopFolderDropTarget(pdt);
if (pdfdt)
{
hr = pdfdt->QueryInterface(IID_PPV_ARG(IDropTarget, (IDropTarget**)ppv));
pdfdt->Release();
}
pdt->Release();
}
}
else if (IsEqualIID(riid, IID_IContextMenu))
{
IShellFolder *psfTemp;
hr = QueryInterface(IID_PPV_ARG(IShellFolder, &psfTemp));
if (SUCCEEDED(hr))
{
HKEY hkNoFiles = NULL;
RegOpenKey(HKEY_CLASSES_ROOT, TEXT("Directory\\Background"), &hkNoFiles);
hr = CDefFolderMenu_Create2Ex(&c_idlDesktop, hwnd, 0, NULL,
psfTemp, this, 1, &hkNoFiles, (IContextMenu **)ppv);
psfTemp->Release();
RegCloseKey(hkNoFiles);
}
}
return hr;
}
STDMETHODIMP CDesktopFolder::GetAttributesOf(UINT cidl, LPCITEMIDLIST *apidl, ULONG *rgfOut)
{
if (IsSelf(cidl, apidl))
{
*rgfOut &= SFGAO_FOLDER | SFGAO_FILESYSTEM | SFGAO_HASSUBFOLDER | SFGAO_HASPROPSHEET | SFGAO_FILESYSANCESTOR | SFGAO_STORAGEANCESTOR | SFGAO_STORAGE;
return S_OK;
}
IShellFolder2 *psf = _GetItemFolder(apidl[0]);
if (psf)
return psf->GetAttributesOf(cidl, apidl, rgfOut);
return E_UNEXPECTED;
}
HRESULT CDesktopFolder::_SelfAssocCreate(REFIID riid, void **ppv)
{
*ppv = NULL;
IQueryAssociations *pqa;
HRESULT hr = AssocCreate(CLSID_QueryAssociations, IID_PPV_ARG(IQueryAssociations, &pqa));
if (SUCCEEDED(hr))
{
hr = pqa->Init(ASSOCF_INIT_DEFAULTTOFOLDER, L"{00021400-0000-0000-C000-000000000046}", // CLSID_ShellDesktop
NULL, NULL);
if (SUCCEEDED(hr))
{
hr = pqa->QueryInterface(riid, ppv);
}
pqa->Release();
}
return hr;
}
STDAPI _DeskContextMenuCB(IShellFolder *psf, HWND hwnd, IDataObject *pdtobj, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
// The "safe" thing to return is usually E_NOTIMPL, but some messages
// have special return values.
HRESULT hr;
switch (uMsg)
{
case DFM_VALIDATECMD:
hr = S_FALSE;
break;
case DFM_INVOKECOMMAND:
if (wParam == DFM_CMD_PROPERTIES)
{
// Properties should act like Properties on the background
SHRunControlPanel(TEXT("desk.cpl"), hwnd);
hr = S_OK;
}
else
hr = S_FALSE;
break;
case DFM_MERGECONTEXTMENU:
hr = S_OK;
break;
default:
hr = E_NOTIMPL;
break;
}
return hr;
}
HRESULT CDesktopFolder::_SelfCreateContextMenu(HWND hwnd, void **ppv)
{
*ppv = NULL;
IQueryAssociations *pqa;
HRESULT hr = _SelfAssocCreate(IID_PPV_ARG(IQueryAssociations, &pqa));
if (SUCCEEDED(hr))
{
HKEY ahkeys[2] = { NULL, NULL };
DWORD cKeys = SHGetAssocKeys(pqa, ahkeys, ARRAYSIZE(ahkeys));
pqa->Release();
// We must pass cidl=1 apidl=&pidlDesktop to ensure that an
// IDataObject is created,
// or Symantec Internet FastFind ALERTEX.DLL will fault.
LPCITEMIDLIST pidlDesktop = DESKTOP_PIDL;
hr = CDefFolderMenu_Create2(&c_idlDesktop, hwnd, 1, &pidlDesktop, this, _DeskContextMenuCB,
ARRAYSIZE(ahkeys), ahkeys, (IContextMenu **)ppv);
SHRegCloseKeys(ahkeys, ARRAYSIZE(ahkeys));
}
return hr;
}
HRESULT CDesktopFolder::_GetItemUIObject(HWND hwnd, UINT cidl, LPCITEMIDLIST *apidl,
REFIID riid, UINT *prgfInOut, void **ppv)
{
IShellFolder2 *psf = _GetItemFolder(apidl[0]);
if (psf)
return psf->GetUIObjectOf(hwnd, cidl, apidl, riid, prgfInOut, ppv);
return E_UNEXPECTED;
}
STDMETHODIMP CDesktopFolder::GetUIObjectOf(HWND hwnd, UINT cidl, LPCITEMIDLIST *apidl,
REFIID riid, UINT *prgfInOut, void **ppv)
{
HRESULT hr = E_NOINTERFACE;
*ppv = NULL;
if (IsSelf(cidl, apidl))
{
// for the desktop itself
if (IsEqualIID(riid, IID_IExtractIconA) || IsEqualIID(riid, IID_IExtractIconW))
{
hr = SHCreateDefExtIcon(NULL, II_DESKTOP, II_DESKTOP, GIL_PERCLASS, II_DESKTOP, riid, ppv);
}
else if (IsEqualIID(riid, IID_IQueryInfo))
{
hr = CreateInfoTipFromText(MAKEINTRESOURCE(IDS_FOLDER_DESKTOP_TT), riid, ppv);
}
else if (IsEqualIID(riid, IID_IContextMenu))
{
hr = _SelfCreateContextMenu(hwnd, ppv);
}
else if (IsEqualIID(riid, IID_IDropTarget))
{
hr = _psfDesktop->CreateViewObject(hwnd, riid, ppv);
}
else if (IsEqualIID(riid, IID_IDataObject))
{
// Must create with 1 pidl inside that maps to the desktop.
// Otherwise, CShellExecMenu::InvokeCommand will punt.
LPCITEMIDLIST pidlDesktop = DESKTOP_PIDL;
hr = SHCreateFileDataObject(&c_idlDesktop, 1, &pidlDesktop, NULL, (IDataObject **)ppv);
}
// Nobody seems to mind if we don't provide this
// so don't give one out because AssocCreate is slow.
// else if (IsEqualIID(riid, IID_IQueryAssociations))
// {
// hr = _SelfAssocCreate(riid, ppv);
// }
}
else
{
hr = _GetItemUIObject(hwnd, cidl, apidl, riid, prgfInOut, ppv);
}
return hr;
}
STDMETHODIMP CDesktopFolder::GetDisplayNameOf(LPCITEMIDLIST pidl, DWORD dwFlags, STRRET *pStrRet)
{
HRESULT hr;
if (IsSelf(1, &pidl))
{
if ((dwFlags & (SHGDN_FORPARSING | SHGDN_INFOLDER | SHGDN_FORADDRESSBAR)) == SHGDN_FORPARSING)
{
// note some ISV apps puke if we return a full name here but the
// rest of the shell depends on this...
TCHAR szPath[MAX_PATH];
SHGetFolderPath(NULL, CSIDL_DESKTOPDIRECTORY, NULL, 0, szPath);
hr = StringToStrRet(szPath, pStrRet);
}
else
hr = ResToStrRet(IDS_DESKTOP, pStrRet); // display name, "Desktop"
}
else
{
IShellFolder2 *psf = _GetItemFolder(pidl);
if (psf)
hr = psf->GetDisplayNameOf(pidl, dwFlags, pStrRet);
else
hr = E_UNEXPECTED;
}
return hr;
}
STDMETHODIMP CDesktopFolder::SetNameOf(HWND hwnd, LPCITEMIDLIST pidl,
LPCOLESTR pszName, DWORD dwRes, LPITEMIDLIST *ppidlOut)
{
IShellFolder2 *psf = _GetItemFolder(pidl);
if (psf)
return psf->SetNameOf(hwnd, pidl, pszName, dwRes, ppidlOut);
return E_UNEXPECTED;
}
STDMETHODIMP CDesktopFolder::GetDefaultSearchGUID(GUID *pGuid)
{
return E_NOTIMPL;
}
STDMETHODIMP CDesktopFolder::EnumSearches(LPENUMEXTRASEARCH *ppenum)
{
*ppenum = NULL;
return E_NOTIMPL;
}
STDMETHODIMP CDesktopFolder::GetDefaultColumn(DWORD dwRes, ULONG *pSort, ULONG *pDisplay)
{
if (_psfDesktop)
return _psfDesktop->GetDefaultColumn(dwRes, pSort, pDisplay);
return E_UNEXPECTED;
}
STDMETHODIMP CDesktopFolder::GetDefaultColumnState(UINT iColumn, DWORD *pdwState)
{
if (_psfDesktop)
return _psfDesktop->GetDefaultColumnState(iColumn, pdwState);
return E_UNEXPECTED;
}
STDMETHODIMP CDesktopFolder::GetDetailsEx(LPCITEMIDLIST pidl, const SHCOLUMNID *pscid, VARIANT *pv)
{
HRESULT hr = E_UNEXPECTED;
if (IsSelf(1, &pidl))
{
if (IsEqualSCID(*pscid, SCID_NAME))
{
STRRET strRet;
hr = GetDisplayNameOf(pidl, SHGDN_NORMAL, &strRet);
if (SUCCEEDED(hr))
{
hr = InitVariantFromStrRet(&strRet, pidl, pv);
}
}
}
else
{
IShellFolder2 *psf = _GetItemFolder(pidl);
if (psf)
{
hr = psf->GetDetailsEx(pidl, pscid, pv);
}
}
return hr;
}
STDMETHODIMP CDesktopFolder::GetDetailsOf(LPCITEMIDLIST pidl, UINT iColumn, SHELLDETAILS *pDetails)
{
IShellFolder2 *psf = _GetItemFolder(pidl);
if (psf)
return psf->GetDetailsOf(pidl, iColumn, pDetails);
return E_UNEXPECTED;
}
STDMETHODIMP CDesktopFolder::MapColumnToSCID(UINT iColumn, SHCOLUMNID *pscid)
{
if (_psfDesktop)
return _psfDesktop->MapColumnToSCID(iColumn, pscid);
return E_UNEXPECTED;
}
STDMETHODIMP CDesktopFolder::GetClassID(CLSID *pCLSID)
{
*pCLSID = CLSID_ShellDesktop;
return S_OK;
}
STDMETHODIMP CDesktopFolder::Initialize(LPCITEMIDLIST pidl)
{
return ILIsEmpty(pidl) ? S_OK : E_INVALIDARG;
}
STDMETHODIMP CDesktopFolder::GetCurFolder(LPITEMIDLIST *ppidl)
{
return GetCurFolderImpl(&c_idlDesktop, ppidl);
}
STDMETHODIMP CDesktopFolder::TranslateIDs(LONG *plEvent,
LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2,
LPITEMIDLIST * ppidlOut1, LPITEMIDLIST * ppidlOut2,
LONG *plEvent2, LPITEMIDLIST *ppidlOut1Event2,
LPITEMIDLIST *ppidlOut2Event2)
{
*ppidlOut1 = NULL;
*ppidlOut2 = NULL;
*plEvent2 = -1;
*ppidlOut1Event2 = NULL;
*ppidlOut2Event2 = NULL;
if (pidl1)
SHILAliasTranslate(pidl1, ppidlOut1, XLATEALIAS_DESKTOP);
if (pidl2)
SHILAliasTranslate(pidl2, ppidlOut2, XLATEALIAS_DESKTOP);
if (*ppidlOut1 || *ppidlOut2)
{
if (!*ppidlOut1)
*ppidlOut1 = ILClone(pidl1);
if (!*ppidlOut2)
*ppidlOut2 = ILClone(pidl2);
if (*ppidlOut1 || *ppidlOut2)
{
return S_OK;
}
ILFree(*ppidlOut1);
ILFree(*ppidlOut2);
*ppidlOut1 = NULL;
*ppidlOut2 = NULL;
}
return E_FAIL;
}
STDMETHODIMP CDesktopFolder::GetIconOf(LPCITEMIDLIST pidl, UINT flags, int *piIndex)
{
IShellIcon *psi;
HRESULT hr = _QueryInterfaceItem(pidl, IID_PPV_ARG(IShellIcon, &psi));
if (SUCCEEDED(hr))
{
hr = psi->GetIconOf(pidl, flags, piIndex);
psi->Release();
}
return hr;
}
STDMETHODIMP CDesktopFolder::GetOverlayIndex(LPCITEMIDLIST pidl, int *pIndex)
{
IShellIconOverlay *psio;
HRESULT hr = _QueryInterfaceItem(pidl, IID_PPV_ARG(IShellIconOverlay, &psio));
if (SUCCEEDED(hr))
{
hr = psio->GetOverlayIndex(pidl, pIndex);
psio->Release();
}
return hr;
}
STDMETHODIMP CDesktopFolder::GetOverlayIconIndex(LPCITEMIDLIST pidl, int *pIconIndex)
{
IShellIconOverlay *psio;
HRESULT hr = _QueryInterfaceItem(pidl, IID_PPV_ARG(IShellIconOverlay, &psio));
if (SUCCEEDED(hr))
{
hr = psio->GetOverlayIconIndex(pidl, pIconIndex);
psio->Release();
}
return hr;
}
// IStorage
STDMETHODIMP CDesktopFolder::_DeleteItemByIDList(LPCITEMIDLIST pidl)
{
IStorage *pstg;
HRESULT hr = _QueryInterfaceItem(pidl, IID_PPV_ARG(IStorage, &pstg));
if (SUCCEEDED(hr))
{
TCHAR szName[MAX_PATH];
hr = DisplayNameOf(this, pidl, SHGDN_FORPARSING | SHGDN_INFOLDER, szName, ARRAYSIZE(szName));
if (SUCCEEDED(hr))
{
hr = pstg->DestroyElement(szName);
}
pstg->Release();
}
return hr;
}
STDMETHODIMP CDesktopFolder::_StgCreate(LPCITEMIDLIST pidl, DWORD grfMode, REFIID riid, void **ppv)
{
IStorage *pstg;
HRESULT hr = _QueryInterfaceItem(pidl, IID_PPV_ARG(IStorage, &pstg));
if (SUCCEEDED(hr))
{
TCHAR szName[MAX_PATH];
hr = DisplayNameOf(this, pidl, SHGDN_FORPARSING | SHGDN_INFOLDER, szName, ARRAYSIZE(szName));
if (SUCCEEDED(hr))
{
if (IsEqualIID(riid, IID_IStorage))
{
hr = pstg->CreateStorage(szName, grfMode, 0, 0, (IStorage **) ppv);
}
else if (IsEqualIID(riid, IID_IStream))
{
hr = pstg->CreateStream(szName, grfMode, 0, 0, (IStream **) ppv);
}
else
{
hr = E_INVALIDARG;
}
}
pstg->Release();
}
return hr;
}
#define DESKTOP_EVENTS \
SHCNE_DISKEVENTS | \
SHCNE_ASSOCCHANGED | \
SHCNE_NETSHARE | \
SHCNE_NETUNSHARE
HRESULT CDesktopViewCallBack::QueryInterface(REFIID riid, void **ppv)
{
HRESULT hr = CBaseShellFolderViewCB::QueryInterface(riid, ppv);
if (FAILED(hr))
{
static const QITAB qit[] = {
QITABENT(CDesktopViewCallBack, IFolderFilter),
{ 0 },
};
hr = QISearch(this, qit, riid, ppv);
}
return hr;
}
//
// Copied to shell\applets\cleanup\fldrclnr\cleanupwiz.cpp :CCleanupWiz::_ShouldShow
// If you modify this, modify that as well
//
STDMETHODIMP CDesktopViewCallBack::ShouldShow(IShellFolder* psf, LPCITEMIDLIST pidlFolder, LPCITEMIDLIST pidlItem)
{
HRESULT hr = S_OK; //Assume that this item should be shown!
if (!_fCheckedIfRealDesktop) //Have we done this check before?
{
_fRealDesktop = IsDesktopBrowser(_punkSite);
_fCheckedIfRealDesktop = TRUE; //Remember this fact!
}
if (!_fRealDesktop)
return S_OK; //Not a real desktop! So, let's show everything!
IShellFolder2 *psf2;
if (SUCCEEDED(psf->QueryInterface(IID_PPV_ARG(IShellFolder2, &psf2))))
{
// Get the GUID in the pidl, which requires IShellFolder2.
CLSID guidItem;
if (SUCCEEDED(GetItemCLSID(psf2, pidlItem, &guidItem)))
{
SHELLSTATE ss = {0};
SHGetSetSettings(&ss, SSF_STARTPANELON, FALSE); //See if the StartPanel is on!
TCHAR szRegPath[MAX_PATH];
//Get the proper registry path based on if StartPanel is ON/OFF
wsprintf(szRegPath, REGSTR_PATH_HIDDEN_DESKTOP_ICONS, (ss.fStartPanelOn ? REGSTR_VALUE_STARTPANEL : REGSTR_VALUE_CLASSICMENU));
//Convert the guid to a string
TCHAR szGuidValue[MAX_GUID_STRING_LEN];
SHStringFromGUID(guidItem, szGuidValue, ARRAYSIZE(szGuidValue));
//See if this item is turned off in the registry.
if (SHRegGetBoolUSValue(szRegPath, szGuidValue, FALSE, /* default */FALSE))
hr = S_FALSE; //They want to hide it; So, return S_FALSE.
}
psf2->Release();
}
return hr;
}
STDMETHODIMP CDesktopViewCallBack::GetEnumFlags(IShellFolder* psf, LPCITEMIDLIST pidlFolder, HWND *phwnd, DWORD *pgrfFlags)
{
return E_NOTIMPL;
}
CDesktopViewCallBack::CDesktopViewCallBack(CDesktopFolder* pdf) :
CBaseShellFolderViewCB((LPCITEMIDLIST)&c_idlDesktop, DESKTOP_EVENTS),
_pdf(pdf)
{
ASSERT(_fCheckedIfRealDesktop == FALSE);
ASSERT(_fRealDesktop == FALSE);
}
HRESULT Create_CDesktopViewCallback(CDesktopFolder* pdf, IShellFolderViewCB** ppv)
{
HRESULT hr;
CDesktopViewCallBack* p = new CDesktopViewCallBack(pdf);
if (p)
{
*ppv = SAFECAST(p, IShellFolderViewCB*);
hr = S_OK;
}
else
{
*ppv = NULL;
hr = E_OUTOFMEMORY;
}
return hr;
}
HRESULT CDesktopViewCallBack::OnGETCCHMAX(DWORD pv, LPCITEMIDLIST pidlItem, UINT *pcch)
{
HRESULT hr = S_OK;
if (SIL_GetType(pidlItem) == SHID_ROOT_REGITEM)
{
// evil, we should not have to know this
// make regfldr implement IItemNameLimits and this code won't be needed
*pcch = MAX_REGITEMCCH;
}
else
{
TCHAR szName[MAX_PATH];
if (SUCCEEDED(DisplayNameOf(_pdf, pidlItem, SHGDN_FORPARSING | SHGDN_INFOLDER, szName, ARRAYSIZE(szName))))
{
hr = _pdf->GetMaxLength(szName, (int *)pcch);
}
}
return hr;
}
HRESULT CDesktopViewCallBack::OnGetWorkingDir(DWORD pv, UINT wP, LPTSTR pszDir)
{
return SHGetFolderPath(NULL, CSIDL_DESKTOPDIRECTORY, NULL, 0, pszDir);
}
HRESULT CDesktopViewCallBack::OnGetWebViewTemplate(DWORD pv, UINT uViewMode, SFVM_WEBVIEW_TEMPLATE_DATA* pvi)
{
HRESULT hr = E_FAIL;
if (IsDesktopBrowser(_punkSite))
{
// It's the actual desktop, use desstop.htt (from the desktop CLSID)
//
hr = DefaultGetWebViewTemplateFromClsid(CLSID_ShellDesktop, pvi);
}
return hr;
}
HRESULT CDesktopViewCallBack::OnGetWebViewLayout(DWORD pv, UINT uViewMode, SFVM_WEBVIEW_LAYOUT_DATA* pData)
{
ZeroMemory(pData, sizeof(*pData));
pData->dwLayout = SFVMWVL_NORMAL | SFVMWVL_FILES;
return S_OK;
}
STDMETHODIMP CDesktopViewCallBack::RealMessage(UINT uMsg, WPARAM wParam, LPARAM lParam)
{
switch (uMsg)
{
HANDLE_MSG(0, SFVM_GETCCHMAX, OnGETCCHMAX);
HANDLE_MSG(0, SFVM_GETWEBVIEW_TEMPLATE, OnGetWebViewTemplate);
HANDLE_MSG(0, SFVM_GETWORKINGDIR, OnGetWorkingDir);
HANDLE_MSG(0, SFVM_GETWEBVIEWLAYOUT, OnGetWebViewLayout);
default:
return E_FAIL;
}
return S_OK;
}
CDesktopFolderDropTarget::CDesktopFolderDropTarget(IDropTarget* pdt) : _cRef(1)
{
pdt->QueryInterface(IID_PPV_ARG(IDropTarget, &_pdt));
}
CDesktopFolderDropTarget::~CDesktopFolderDropTarget()
{
_pdt->Release();
}
STDMETHODIMP CDesktopFolderDropTarget::QueryInterface(REFIID riid, void **ppv)
{
static const QITAB qit[] = {
QITABENT(CDesktopFolderDropTarget, IDropTarget),
QITABENT(CDesktopFolderDropTarget, IObjectWithSite),
{ 0 },
};
return QISearch(this, qit, riid, ppv);
}
STDMETHODIMP_(ULONG) CDesktopFolderDropTarget::AddRef()
{
return InterlockedIncrement(&_cRef);
}
STDMETHODIMP_(ULONG) CDesktopFolderDropTarget::Release()
{
if (InterlockedDecrement(&_cRef))
return _cRef;
delete this;
return 0;
}
// IDropTarget
HRESULT CDesktopFolderDropTarget::DragEnter(IDataObject* pDataObject, DWORD grfKeyState, POINTL pt, DWORD* pdwEffect)
{
return _pdt->DragEnter(pDataObject, grfKeyState, pt, pdwEffect);
}
HRESULT CDesktopFolderDropTarget::DragOver(DWORD grfKeyState, POINTL pt, DWORD* pdwEffect)
{
return _pdt->DragOver(grfKeyState, pt, pdwEffect);
}
HRESULT CDesktopFolderDropTarget::DragLeave(void)
{
return _pdt->DragLeave();
}
HRESULT CDesktopFolderDropTarget::SetSite(IN IUnknown * punkSite)
{
IUnknown_SetSite(_pdt, punkSite);
return S_OK;
}
BOOL CDesktopFolderDropTarget::_IsSpecialCaseDrop(IDataObject* pDataObject, DWORD dwEffect, BOOL* pfIsPIDA, UINT* pcItems)
{
BOOL fIEDropped = FALSE;
*pfIsPIDA = FALSE;
// when we drag a fake IE item (filename.CLSID_Internet) back to the desktop, we delete it and unhide the real IE icon
STGMEDIUM medium = {0};
LPIDA pida = DataObj_GetHIDA(pDataObject, &medium);
if (pida)
{
for (UINT i = 0; (i < pida->cidl); i++)
{
LPITEMIDLIST pidlFull = HIDA_ILClone(pida, i);
if (pidlFull)
{
LPCITEMIDLIST pidlRelative;
IShellFolder2* psf2;
if (SUCCEEDED(SHBindToParent(pidlFull, IID_PPV_ARG(IShellFolder2, &psf2), &pidlRelative)))
{
CLSID guidItem;
if (SUCCEEDED(GetItemCLSID(psf2, pidlRelative, &guidItem)) &&
IsEqualCLSID(CLSID_Internet, guidItem))
{
fIEDropped = TRUE;
TCHAR szFakeIEItem[MAX_PATH];
if (SHGetPathFromIDList(pidlFull, szFakeIEItem))
{
TCHAR szFakeIEItemDesktop[MAX_PATH];
if (SHGetSpecialFolderPath(NULL, szFakeIEItemDesktop, CSIDL_DESKTOP, 0))
{
// delete the original if this is a move or if we're on the same volume and we're neither explicitly copying nor linking
if (((dwEffect & DROPEFFECT_MOVE) == DROPEFFECT_MOVE) ||
(((dwEffect & DROPEFFECT_COPY) != DROPEFFECT_COPY) &&
((dwEffect & DROPEFFECT_LINK) != DROPEFFECT_LINK) &&
(PathIsSameRoot(szFakeIEItemDesktop, szFakeIEItem))))
{
DeleteFile(szFakeIEItem);
}
}
}
pida->cidl--;
pida->aoffset[i] = pida->aoffset[pida->cidl];
i--; // stall the for loop
}
psf2->Release();
}
ILFree(pidlFull);
}
}
*pfIsPIDA = TRUE;
*pcItems = pida->cidl;
HIDA_ReleaseStgMedium(pida, &medium);
}
return fIEDropped;
}
HRESULT CDesktopFolderDropTarget::_ShowIEIcon()
{
// reset desktop cleanup wizard's legacy location of "don't show IE" information
HKEY hkey;
if(SUCCEEDED(SHRegGetCLSIDKey(CLSID_Internet, TEXT("ShellFolder"), FALSE, TRUE, &hkey)))
{
DWORD dwAttr, dwType = 0;
DWORD cbSize = sizeof(dwAttr);
if (ERROR_SUCCESS == RegQueryValueEx(hkey, TEXT("Attributes"), NULL, &dwType, (BYTE *) &dwAttr, &cbSize))
{
dwAttr &= ~SFGAO_NONENUMERATED;
RegSetValueEx(hkey, TEXT("Attributes"), NULL, dwType, (BYTE *) &dwAttr, cbSize);
}
RegCloseKey(hkey);
}
// reset start menu's location of "don't show IE" information
DWORD dwData = 0;
TCHAR szCLSID[MAX_GUID_STRING_LEN];
TCHAR szBuffer[MAX_PATH];
if (SUCCEEDED(SHStringFromGUID(CLSID_Internet, szCLSID, ARRAYSIZE(szCLSID))))
{
for (int i = 0; i < 2; i ++)
{
wsprintf(szBuffer, REGSTR_PATH_HIDDEN_DESKTOP_ICONS, (i == 0) ? REGSTR_VALUE_STARTPANEL : REGSTR_VALUE_CLASSICMENU);
SHRegSetUSValue(szBuffer, szCLSID, REG_DWORD, &dwData, sizeof(DWORD), SHREGSET_FORCE_HKCU);
}
}
SHChangeNotify(SHCNE_UPDATEDIR, SHCNF_IDLIST, DESKTOP_PIDL, NULL);
return S_OK;
}
HRESULT CDesktopFolderDropTarget::Drop(IDataObject* pDataObject, DWORD grfKeyState, POINTL pt, DWORD* pdwEffect)
{
BOOL fIsPIDA;
UINT cidl;
if (_IsSpecialCaseDrop(pDataObject, *pdwEffect, &fIsPIDA, &cidl))
{
_ShowIEIcon();
}
HRESULT hr;
if (fIsPIDA && 0 == cidl)
{
hr = _pdt->DragLeave();
}
else
{
hr = _pdt->Drop(pDataObject, grfKeyState, pt, pdwEffect);
}
return hr;
}
CDesktopFolderEnum::CDesktopFolderEnum(CDesktopFolder *pdf, HWND hwnd, DWORD grfFlags) :
_cRef(1), _bUseAltEnum(FALSE)
{
if (pdf->_psfDesktop)
pdf->_psfDesktop->EnumObjects(hwnd, grfFlags, &_penumFolder);
if (pdf->_psfAltDesktop)
pdf->_psfAltDesktop->EnumObjects(NULL, grfFlags, &_penumAltFolder);
}
CDesktopFolderEnum::~CDesktopFolderEnum()
{
if (_penumFolder)
_penumFolder->Release();
if (_penumAltFolder)
_penumAltFolder->Release();
}
STDMETHODIMP CDesktopFolderEnum::QueryInterface(REFIID riid, void **ppv)
{
static const QITAB qit[] = {
QITABENT(CDesktopFolderEnum, IEnumIDList), // IID_IEnumIDList
{ 0 },
};
return QISearch(this, qit, riid, ppv);
}
STDMETHODIMP_(ULONG) CDesktopFolderEnum::AddRef()
{
return InterlockedIncrement(&_cRef);
}
STDMETHODIMP_(ULONG) CDesktopFolderEnum::Release()
{
if (InterlockedDecrement(&_cRef))
return _cRef;
delete this;
return 0;
}
STDMETHODIMP CDesktopFolderEnum::Next(ULONG celt, LPITEMIDLIST *ppidl, ULONG *pceltFetched)
{
HRESULT hr;
if (_bUseAltEnum)
{
if (_penumAltFolder)
{
hr = _penumAltFolder->Next(celt, ppidl, pceltFetched);
}
else
hr = S_FALSE;
}
else if (_penumFolder)
{
hr = _penumFolder->Next(celt, ppidl, pceltFetched);
if (S_OK != hr)
{
_bUseAltEnum = TRUE;
hr = Next(celt, ppidl, pceltFetched); // recurse
}
}
else
{
hr = S_FALSE;
}
if (hr == S_FALSE)
{
*ppidl = NULL;
if (pceltFetched)
*pceltFetched = 0;
}
return hr;
}
STDMETHODIMP CDesktopFolderEnum::Skip(ULONG celt)
{
return E_NOTIMPL;
}
STDMETHODIMP CDesktopFolderEnum::Reset()
{
if (_penumFolder)
_penumFolder->Reset();
if (_penumAltFolder)
_penumAltFolder->Reset();
_bUseAltEnum = FALSE;
return S_OK;
}
STDMETHODIMP CDesktopFolderEnum::Clone(IEnumIDList **ppenum)
{
*ppenum = NULL;
return E_NOTIMPL;
}
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