HRESULT SHELL32_GetGuidItemAttributes (IShellFolder * psf, LPCITEMIDLIST pidl, LPDWORD pdwAttributes)
{
if (!_ILIsSpecialFolder(pidl))
{
ERR("Got wrong type of pidl!\n");
*pdwAttributes &= SFGAO_CANLINK;
return S_OK;
}
if (*pdwAttributes & ~dwSupportedAttr)
{
WARN ("attributes 0x%08x not implemented\n", (*pdwAttributes & ~dwSupportedAttr));
*pdwAttributes &= dwSupportedAttr;
}
/* First try to get them from the registry */
if (HCR_GetFolderAttributes(pidl, pdwAttributes) && *pdwAttributes)
{
return S_OK;
}
else
{
/* If we can't get it from the registry we have to query the child */
CComPtr<IShellFolder> psf2;
if (SUCCEEDED(psf->BindToObject(pidl, 0, IID_PPV_ARG(IShellFolder, &psf2))))
{
return psf2->GetAttributesOf(0, NULL, pdwAttributes);
}
}
*pdwAttributes &= SFGAO_CANLINK;
return S_OK;
}
HRESULT CRegFolder::GetGuidItemAttributes (LPCITEMIDLIST pidl, LPDWORD pdwAttributes)
{
DWORD dwAttributes = *pdwAttributes;
/* First try to get them from the registry */
if (!HCR_GetFolderAttributes(pidl, pdwAttributes))
{
/* We couldn't get anything */
*pdwAttributes = 0;
}
/* Items have more attributes when on desktop */
if (_ILIsDesktop(m_pidlRoot))
{
*pdwAttributes |= (dwAttributes & (SFGAO_CANLINK|SFGAO_CANDELETE|SFGAO_CANRENAME|SFGAO_HASPROPSHEET));
}
/* In any case, links can be created */
if (*pdwAttributes == NULL)
{
*pdwAttributes |= (dwAttributes & SFGAO_CANLINK);
}
return S_OK;
}
/***********************************************************************
* SHELL32_GetItemAttributes
*
* NOTES
* Observed values:
* folder: 0xE0000177 FILESYSTEM | HASSUBFOLDER | FOLDER
* file: 0x40000177 FILESYSTEM
* drive: 0xf0000144 FILESYSTEM | HASSUBFOLDER | FOLDER | FILESYSANCESTOR
* mycomputer: 0xb0000154 HASSUBFOLDER | FOLDER | FILESYSANCESTOR
* (seems to be default for shell extensions if no registry entry exists)
*
* win2k:
* folder: 0xF0400177 FILESYSTEM | HASSUBFOLDER | FOLDER | FILESYSANCESTOR | CANMONIKER
* file: 0x40400177 FILESYSTEM | CANMONIKER
* drive 0xF0400154 FILESYSTEM | HASSUBFOLDER | FOLDER | FILESYSANCESTOR | CANMONIKER | CANRENAME (LABEL)
*
* According to the MSDN documentation this function should not set flags. It claims only to reset flags when necessary.
* However it turns out the native shell32.dll _sets_ flags in several cases - so do we.
*/
HRESULT SHELL32_GetItemAttributes (IShellFolder * psf, LPCITEMIDLIST pidl, LPDWORD pdwAttributes)
{
DWORD dwAttributes;
BOOL has_guid;
static const DWORD dwSupportedAttr=
SFGAO_CANCOPY | /*0x00000001 */
SFGAO_CANMOVE | /*0x00000002 */
SFGAO_CANLINK | /*0x00000004 */
SFGAO_CANRENAME | /*0x00000010 */
SFGAO_CANDELETE | /*0x00000020 */
SFGAO_HASPROPSHEET | /*0x00000040 */
SFGAO_DROPTARGET | /*0x00000100 */
SFGAO_LINK | /*0x00010000 */
SFGAO_READONLY | /*0x00040000 */
SFGAO_HIDDEN | /*0x00080000 */
SFGAO_FILESYSANCESTOR | /*0x10000000 */
SFGAO_FOLDER | /*0x20000000 */
SFGAO_FILESYSTEM | /*0x40000000 */
SFGAO_HASSUBFOLDER; /*0x80000000 */
TRACE ("0x%08x\n", *pdwAttributes);
if (*pdwAttributes & ~dwSupportedAttr)
{
WARN ("attributes 0x%08x not implemented\n", (*pdwAttributes & ~dwSupportedAttr));
*pdwAttributes &= dwSupportedAttr;
}
has_guid = _ILGetGUIDPointer(pidl) != NULL;
dwAttributes = *pdwAttributes;
if (_ILIsDrive (pidl)) {
*pdwAttributes &= SFGAO_HASSUBFOLDER|SFGAO_FILESYSTEM|SFGAO_FOLDER|SFGAO_FILESYSANCESTOR|
SFGAO_DROPTARGET|SFGAO_HASPROPSHEET|SFGAO_CANLINK;
} else if (has_guid && HCR_GetFolderAttributes(pidl, &dwAttributes)) {
*pdwAttributes = dwAttributes;
} else if (_ILGetDataPointer (pidl)) {
dwAttributes = _ILGetFileAttributes (pidl, NULL, 0);
if (!dwAttributes && has_guid) {
WCHAR path[MAX_PATH];
STRRET strret;
/* File attributes are not present in the internal PIDL structure, so get them from the file system. */
HRESULT hr = IShellFolder_GetDisplayNameOf(psf, pidl, SHGDN_FORPARSING, &strret);
if (SUCCEEDED(hr)) {
hr = StrRetToBufW(&strret, pidl, path, MAX_PATH);
/* call GetFileAttributes() only for file system paths, not for parsing names like "::{...}" */
if (SUCCEEDED(hr) && path[0]!=':')
dwAttributes = GetFileAttributesW(path);
}
}
/* Set common attributes */
*pdwAttributes |= SFGAO_FILESYSTEM | SFGAO_DROPTARGET | SFGAO_HASPROPSHEET | SFGAO_CANDELETE |
SFGAO_CANRENAME | SFGAO_CANLINK | SFGAO_CANMOVE | SFGAO_CANCOPY;
if (dwAttributes & FILE_ATTRIBUTE_DIRECTORY)
*pdwAttributes |= (SFGAO_FOLDER | SFGAO_HASSUBFOLDER | SFGAO_FILESYSANCESTOR);
else
*pdwAttributes &= ~(SFGAO_FOLDER | SFGAO_HASSUBFOLDER | SFGAO_FILESYSANCESTOR);
if (dwAttributes & FILE_ATTRIBUTE_HIDDEN)
*pdwAttributes |= SFGAO_HIDDEN;
else
*pdwAttributes &= ~SFGAO_HIDDEN;
if (dwAttributes & FILE_ATTRIBUTE_READONLY)
*pdwAttributes |= SFGAO_READONLY;
else
*pdwAttributes &= ~SFGAO_READONLY;
if (SFGAO_LINK & *pdwAttributes) {
char ext[MAX_PATH];
if (!_ILGetExtension(pidl, ext, MAX_PATH) || lstrcmpiA(ext, "lnk"))
*pdwAttributes &= ~SFGAO_LINK;
}
} else {
*pdwAttributes &= SFGAO_HASSUBFOLDER|SFGAO_FOLDER|SFGAO_FILESYSANCESTOR|SFGAO_DROPTARGET|SFGAO_HASPROPSHEET|SFGAO_CANRENAME|SFGAO_CANLINK;
}
TRACE ("-- 0x%08x\n", *pdwAttributes);
return S_OK;
}