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Sweden-Number/dlls/shell32/pidl.c

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/*
* pidl Handling
*
* Copyright 1998 Juergen Schmied
*
* 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
*
* NOTES
* a pidl == NULL means desktop and is legal
*
*/
#include "config.h"
#include "wine/port.h"
#include <ctype.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#define COBJMACROS
#define NONAMELESSUNION
#include "windef.h"
#include "winbase.h"
#include "winreg.h"
#include "objbase.h"
#include "shlguid.h"
#include "winerror.h"
#include "winnls.h"
#include "undocshell.h"
#include "shell32_main.h"
#include "shlwapi.h"
#include "pidl.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(pidl);
WINE_DECLARE_DEBUG_CHANNEL(shell);
/* from comctl32.dll */
extern LPVOID WINAPI Alloc(INT);
extern BOOL WINAPI Free(LPVOID);
static LPSTR _ILGetSTextPointer(LPCITEMIDLIST pidl);
static LPWSTR _ILGetTextPointerW(LPCITEMIDLIST pidl);
/*************************************************************************
* ILGetDisplayNameExA
*
* Retrieves the display name of an ItemIDList
*
* PARAMS
* psf [I] Shell Folder to start with, if NULL the desktop is used
* pidl [I] ItemIDList relative to the psf to get the display name for
* path [O] Filled in with the display name, assumed to be at least MAX_PATH long
* type [I] Type of display name to retrieve
* 0 = SHGDN_FORPARSING | SHGDN_FORADDRESSBAR uses always the desktop as root
* 1 = SHGDN_NORMAL relative to the root folder
* 2 = SHGDN_INFOLDER relative to the root folder, only the last name
*
* RETURNS
* True if the display name could be retrieved successfully, False otherwise
*/
static BOOL ILGetDisplayNameExA(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPSTR path, DWORD type)
{
BOOL ret = FALSE;
WCHAR wPath[MAX_PATH];
TRACE("%p %p %p %d\n", psf, pidl, path, type);
if (!pidl || !path)
return FALSE;
ret = ILGetDisplayNameExW(psf, pidl, wPath, type);
WideCharToMultiByte(CP_ACP, 0, wPath, -1, path, MAX_PATH, NULL, NULL);
TRACE("%p %p %s\n", psf, pidl, debugstr_a(path));
return ret;
}
BOOL ILGetDisplayNameExW(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPWSTR path, DWORD type)
{
LPSHELLFOLDER psfParent, lsf = psf;
HRESULT ret = NO_ERROR;
LPCITEMIDLIST pidllast;
STRRET strret;
DWORD flag;
TRACE("%p %p %p %x\n", psf, pidl, path, type);
if (!pidl || !path)
return FALSE;
if (!lsf)
{
ret = SHGetDesktopFolder(&lsf);
if (FAILED(ret))
return FALSE;
}
switch (type)
{
case ILGDN_FORPARSING:
flag = SHGDN_FORPARSING | SHGDN_FORADDRESSBAR;
break;
case ILGDN_NORMAL:
flag = SHGDN_NORMAL;
break;
case ILGDN_INFOLDER:
flag = SHGDN_INFOLDER;
break;
default:
FIXME("Unknown type parameter = %x\n", type);
flag = SHGDN_FORPARSING | SHGDN_FORADDRESSBAR;
break;
}
if (!*(const WORD*)pidl || type == ILGDN_FORPARSING)
{
ret = IShellFolder_GetDisplayNameOf(lsf, pidl, flag, &strret);
if (SUCCEEDED(ret))
{
if(!StrRetToStrNW(path, MAX_PATH, &strret, pidl))
ret = E_FAIL;
}
}
else
{
ret = SHBindToParent(pidl, &IID_IShellFolder, (LPVOID*)&psfParent, &pidllast);
if (SUCCEEDED(ret))
{
ret = IShellFolder_GetDisplayNameOf(psfParent, pidllast, flag, &strret);
if (SUCCEEDED(ret))
{
if(!StrRetToStrNW(path, MAX_PATH, &strret, pidllast))
ret = E_FAIL;
}
IShellFolder_Release(psfParent);
}
}
TRACE("%p %p %s\n", psf, pidl, debugstr_w(path));
if (!psf)
IShellFolder_Release(lsf);
return SUCCEEDED(ret);
}
/*************************************************************************
* ILGetDisplayNameEx [SHELL32.186]
*/
BOOL WINAPI ILGetDisplayNameEx(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, LPVOID path, DWORD type)
{
TRACE_(shell)("%p %p %p %d\n", psf, pidl, path, type);
if (SHELL_OsIsUnicode())
return ILGetDisplayNameExW(psf, pidl, path, type);
return ILGetDisplayNameExA(psf, pidl, path, type);
}
/*************************************************************************
* ILGetDisplayName [SHELL32.15]
*/
BOOL WINAPI ILGetDisplayName(LPCITEMIDLIST pidl, LPVOID path)
{
TRACE_(shell)("%p %p\n", pidl, path);
if (SHELL_OsIsUnicode())
return ILGetDisplayNameExW(NULL, pidl, path, ILGDN_FORPARSING);
return ILGetDisplayNameExA(NULL, pidl, path, ILGDN_FORPARSING);
}
/*************************************************************************
* ILFindLastID [SHELL32.16]
*
* NOTES
* observed: pidl=Desktop return=pidl
*/
LPITEMIDLIST WINAPI ILFindLastID(LPCITEMIDLIST pidl)
{
LPCITEMIDLIST pidlLast = pidl;
TRACE("(pidl=%p)\n",pidl);
if (!pidl)
return NULL;
while (pidl->mkid.cb)
{
pidlLast = pidl;
pidl = ILGetNext(pidl);
}
return (LPITEMIDLIST)pidlLast;
}
/*************************************************************************
* ILRemoveLastID [SHELL32.17]
*
* NOTES
* when pidl=Desktop return=FALSE
*/
BOOL WINAPI ILRemoveLastID(LPITEMIDLIST pidl)
{
TRACE_(shell)("pidl=%p\n",pidl);
if (_ILIsEmpty(pidl))
return FALSE;
ILFindLastID(pidl)->mkid.cb = 0;
return TRUE;
}
/*************************************************************************
* ILClone [SHELL32.18]
*
* NOTES
* duplicate an idlist
*/
LPITEMIDLIST WINAPI ILClone (LPCITEMIDLIST pidl)
{
DWORD len;
LPITEMIDLIST newpidl;
if (!pidl)
return NULL;
len = ILGetSize(pidl);
newpidl = SHAlloc(len);
if (newpidl)
memcpy(newpidl,pidl,len);
TRACE("pidl=%p newpidl=%p\n",pidl, newpidl);
pdump(pidl);
return newpidl;
}
/*************************************************************************
* ILCloneFirst [SHELL32.19]
*
* NOTES
* duplicates the first idlist of a complex pidl
*/
LPITEMIDLIST WINAPI ILCloneFirst(LPCITEMIDLIST pidl)
{
DWORD len;
LPITEMIDLIST pidlNew = NULL;
TRACE("pidl=%p\n", pidl);
pdump(pidl);
if (pidl)
{
len = pidl->mkid.cb;
pidlNew = SHAlloc(len+2);
if (pidlNew)
{
memcpy(pidlNew,pidl,len+2); /* 2 -> mind a desktop pidl */
if (len)
ILGetNext(pidlNew)->mkid.cb = 0x00;
}
}
TRACE("-- newpidl=%p\n",pidlNew);
return pidlNew;
}
/*************************************************************************
* ILLoadFromStream (SHELL32.26)
*
* NOTES
* the first two bytes are the len, the pidl is following then
*/
HRESULT WINAPI ILLoadFromStream (IStream * pStream, LPITEMIDLIST * ppPidl)
{
WORD wLen = 0;
DWORD dwBytesRead;
HRESULT ret = E_FAIL;
TRACE_(shell)("%p %p\n", pStream , ppPidl);
SHFree(*ppPidl);
*ppPidl = NULL;
IStream_AddRef (pStream);
if (SUCCEEDED(IStream_Read(pStream, &wLen, 2, &dwBytesRead)))
{
TRACE("PIDL length is %d\n", wLen);
if (wLen != 0)
{
*ppPidl = SHAlloc (wLen);
if (SUCCEEDED(IStream_Read(pStream, *ppPidl , wLen, &dwBytesRead)))
{
TRACE("Stream read OK\n");
ret = S_OK;
}
else
{
WARN("reading pidl failed\n");
SHFree(*ppPidl);
*ppPidl = NULL;
}
}
else
{
*ppPidl = NULL;
ret = S_OK;
}
}
/* we are not yet fully compatible */
if (*ppPidl && !pcheck(*ppPidl))
{
WARN("Check failed\n");
SHFree(*ppPidl);
*ppPidl = NULL;
}
IStream_Release (pStream);
TRACE("done\n");
return ret;
}
/*************************************************************************
* ILSaveToStream (SHELL32.27)
*
* NOTES
* the first two bytes are the len, the pidl is following then
*/
HRESULT WINAPI ILSaveToStream (IStream * pStream, LPCITEMIDLIST pPidl)
{
WORD wLen = 0;
HRESULT ret = E_FAIL;
TRACE_(shell)("%p %p\n", pStream, pPidl);
IStream_AddRef (pStream);
wLen = ILGetSize(pPidl);
if (SUCCEEDED(IStream_Write(pStream, &wLen, 2, NULL)))
{
if (SUCCEEDED(IStream_Write(pStream, pPidl, wLen, NULL)))
ret = S_OK;
}
IStream_Release (pStream);
return ret;
}
/*************************************************************************
* SHILCreateFromPath [SHELL32.28]
*
* Create an ItemIDList from a path
*
* PARAMS
* path [I]
* ppidl [O]
* attributes [I/O] requested attributes on call and actual attributes when
* the function returns
*
* RETURNS
* NO_ERROR if successful, or an OLE errer code otherwise
*
* NOTES
* Wrapper for IShellFolder_ParseDisplayName().
*/
static HRESULT SHILCreateFromPathA(LPCSTR path, LPITEMIDLIST * ppidl, DWORD * attributes)
{
WCHAR lpszDisplayName[MAX_PATH];
TRACE_(shell)("%s %p 0x%08x\n", path, ppidl, attributes ? *attributes : 0);
if (!MultiByteToWideChar(CP_ACP, 0, path, -1, lpszDisplayName, MAX_PATH))
lpszDisplayName[MAX_PATH-1] = 0;
return SHILCreateFromPathW(lpszDisplayName, ppidl, attributes);
}
HRESULT SHILCreateFromPathW(LPCWSTR path, LPITEMIDLIST * ppidl, DWORD * attributes)
{
LPSHELLFOLDER sf;
DWORD pchEaten;
HRESULT ret = E_FAIL;
TRACE_(shell)("%s %p 0x%08x\n", debugstr_w(path), ppidl, attributes ? *attributes : 0);
if (SUCCEEDED (SHGetDesktopFolder(&sf)))
{
ret = IShellFolder_ParseDisplayName(sf, 0, NULL, (LPWSTR)path, &pchEaten, ppidl, attributes);
IShellFolder_Release(sf);
}
return ret;
}
HRESULT WINAPI SHILCreateFromPathAW (LPCVOID path, LPITEMIDLIST * ppidl, DWORD * attributes)
{
if ( SHELL_OsIsUnicode())
return SHILCreateFromPathW (path, ppidl, attributes);
return SHILCreateFromPathA (path, ppidl, attributes);
}
/*************************************************************************
* SHCloneSpecialIDList [SHELL32.89]
*
* Create an ItemIDList to one of the special folders.
* PARAMS
* hwndOwner [in]
* nFolder [in] CSIDL_xxxxx
* fCreate [in] Create folder if it does not exist
*
* RETURNS
* Success: The newly created pidl
* Failure: NULL, if inputs are invalid.
*
* NOTES
* exported by ordinal.
* Caller is responsible for deallocating the returned ItemIDList with the
* shells IMalloc interface, aka ILFree.
*/
LPITEMIDLIST WINAPI SHCloneSpecialIDList(HWND hwndOwner, DWORD nFolder, BOOL fCreate)
{
LPITEMIDLIST ppidl;
TRACE_(shell)("(hwnd=%p,csidl=0x%x,%s).\n", hwndOwner, nFolder, fCreate ? "T" : "F");
if (fCreate)
nFolder |= CSIDL_FLAG_CREATE;
SHGetSpecialFolderLocation(hwndOwner, nFolder, &ppidl);
return ppidl;
}
/*************************************************************************
* ILGlobalClone [SHELL32.20]
*
* Clones an ItemIDList using Alloc.
*
* PARAMS
* pidl [I] ItemIDList to clone
*
* RETURNS
* Newly allocated ItemIDList.
*
* NOTES
* exported by ordinal.
*/
LPITEMIDLIST WINAPI ILGlobalClone(LPCITEMIDLIST pidl)
{
DWORD len;
LPITEMIDLIST newpidl;
if (!pidl)
return NULL;
len = ILGetSize(pidl);
newpidl = Alloc(len);
if (newpidl)
memcpy(newpidl,pidl,len);
TRACE("pidl=%p newpidl=%p\n",pidl, newpidl);
pdump(pidl);
return newpidl;
}
/*************************************************************************
* ILIsEqual [SHELL32.21]
*
*/
BOOL WINAPI ILIsEqual(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
{
char szData1[MAX_PATH];
char szData2[MAX_PATH];
LPCITEMIDLIST pidltemp1 = pidl1;
LPCITEMIDLIST pidltemp2 = pidl2;
TRACE("pidl1=%p pidl2=%p\n",pidl1, pidl2);
/*
* Explorer reads from registry directly (StreamMRU),
* so we can only check here
*/
if (!pcheck(pidl1) || !pcheck (pidl2))
return FALSE;
pdump (pidl1);
pdump (pidl2);
if (!pidl1 || !pidl2)
return FALSE;
while (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
{
_ILSimpleGetText(pidltemp1, szData1, MAX_PATH);
_ILSimpleGetText(pidltemp2, szData2, MAX_PATH);
if (lstrcmpiA( szData1, szData2 ))
return FALSE;
pidltemp1 = ILGetNext(pidltemp1);
pidltemp2 = ILGetNext(pidltemp2);
}
if (!pidltemp1->mkid.cb && !pidltemp2->mkid.cb)
return TRUE;
return FALSE;
}
/*************************************************************************
* ILIsParent [SHELL32.23]
*
* Verifies that pidlParent is indeed the (immediate) parent of pidlChild.
*
* PARAMS
* pidlParent [I]
* pidlChild [I]
* bImmediate [I] only return true if the parent is the direct parent
* of the child
*
* RETURNS
* True if the parent ItemIDlist is a complete part of the child ItemIdList,
* False otherwise.
*
* NOTES
* parent = a/b, child = a/b/c -> true, c is in folder a/b
* child = a/b/c/d -> false if bImmediate is true, d is not in folder a/b
* child = a/b/c/d -> true if bImmediate is false, d is in a subfolder of a/b
* child = a/b -> false if bImmediate is true
* child = a/b -> true if bImmediate is false
*/
BOOL WINAPI ILIsParent(LPCITEMIDLIST pidlParent, LPCITEMIDLIST pidlChild, BOOL bImmediate)
{
char szData1[MAX_PATH];
char szData2[MAX_PATH];
LPCITEMIDLIST pParent = pidlParent;
LPCITEMIDLIST pChild = pidlChild;
TRACE("%p %p %x\n", pidlParent, pidlChild, bImmediate);
if (!pParent || !pChild)
return FALSE;
while (pParent->mkid.cb && pChild->mkid.cb)
{
_ILSimpleGetText(pParent, szData1, MAX_PATH);
_ILSimpleGetText(pChild, szData2, MAX_PATH);
if (lstrcmpiA( szData1, szData2 ))
return FALSE;
pParent = ILGetNext(pParent);
pChild = ILGetNext(pChild);
}
/* child has shorter name than parent */
if (pParent->mkid.cb)
return FALSE;
/* not immediate descent */
if ((!pChild->mkid.cb || ILGetNext(pChild)->mkid.cb) && bImmediate)
return FALSE;
return TRUE;
}
/*************************************************************************
* ILFindChild [SHELL32.24]
*
* Compares elements from pidl1 and pidl2.
*
* PARAMS
* pidl1 [I]
* pidl2 [I]
*
* RETURNS
* pidl1 is desktop pidl2
* pidl1 shorter pidl2 pointer to first different element of pidl2
* if there was at least one equal element
* pidl2 shorter pidl1 0
* pidl2 equal pidl1 pointer to last 0x00-element of pidl2
*
* NOTES
* exported by ordinal.
*/
LPITEMIDLIST WINAPI ILFindChild(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
{
char szData1[MAX_PATH];
char szData2[MAX_PATH];
LPCITEMIDLIST pidltemp1 = pidl1;
LPCITEMIDLIST pidltemp2 = pidl2;
LPCITEMIDLIST ret=NULL;
TRACE("pidl1=%p pidl2=%p\n",pidl1, pidl2);
/* explorer reads from registry directly (StreamMRU),
so we can only check here */
if ((!pcheck (pidl1)) || (!pcheck (pidl2)))
return FALSE;
pdump (pidl1);
pdump (pidl2);
if (_ILIsDesktop(pidl1))
{
ret = pidl2;
}
else
{
while (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
{
_ILSimpleGetText(pidltemp1, szData1, MAX_PATH);
_ILSimpleGetText(pidltemp2, szData2, MAX_PATH);
if (lstrcmpiA(szData1,szData2))
break;
pidltemp1 = ILGetNext(pidltemp1);
pidltemp2 = ILGetNext(pidltemp2);
ret = pidltemp2;
}
if (pidltemp1->mkid.cb)
ret = NULL; /* elements of pidl1 left*/
}
TRACE_(shell)("--- %p\n", ret);
return (LPITEMIDLIST)ret; /* pidl 1 is shorter */
}
/*************************************************************************
* ILCombine [SHELL32.25]
*
* Concatenates two complex ItemIDLists.
*
* PARAMS
* pidl1 [I] first complex ItemIDLists
* pidl2 [I] complex ItemIDLists to append
*
* RETURNS
* if both pidl's == NULL NULL
* if pidl1 == NULL cloned pidl2
* if pidl2 == NULL cloned pidl1
* otherwise new pidl with pidl2 appended to pidl1
*
* NOTES
* exported by ordinal.
* Does not destroy the passed in ItemIDLists!
*/
LPITEMIDLIST WINAPI ILCombine(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
{
DWORD len1,len2;
LPITEMIDLIST pidlNew;
TRACE("pidl=%p pidl=%p\n",pidl1,pidl2);
if (!pidl1 && !pidl2) return NULL;
pdump (pidl1);
pdump (pidl2);
if (!pidl1)
{
pidlNew = ILClone(pidl2);
return pidlNew;
}
if (!pidl2)
{
pidlNew = ILClone(pidl1);
return pidlNew;
}
len1 = ILGetSize(pidl1)-2;
len2 = ILGetSize(pidl2);
pidlNew = SHAlloc(len1+len2);
if (pidlNew)
{
memcpy(pidlNew,pidl1,len1);
memcpy(((BYTE *)pidlNew)+len1,pidl2,len2);
}
/* TRACE(pidl,"--new pidl=%p\n",pidlNew);*/
return pidlNew;
}
/*************************************************************************
* SHGetRealIDL [SHELL32.98]
*
* NOTES
*/
HRESULT WINAPI SHGetRealIDL(LPSHELLFOLDER lpsf, LPCITEMIDLIST pidlSimple, LPITEMIDLIST *pidlReal)
{
IDataObject* pDataObj;
HRESULT hr;
hr = IShellFolder_GetUIObjectOf(lpsf, 0, 1, &pidlSimple,
&IID_IDataObject, 0, (LPVOID*)&pDataObj);
if (SUCCEEDED(hr))
{
STGMEDIUM medium;
FORMATETC fmt;
fmt.cfFormat = RegisterClipboardFormatW(CFSTR_SHELLIDLISTW);
fmt.ptd = NULL;
fmt.dwAspect = DVASPECT_CONTENT;
fmt.lindex = -1;
fmt.tymed = TYMED_HGLOBAL;
hr = IDataObject_GetData(pDataObj, &fmt, &medium);
IDataObject_Release(pDataObj);
if (SUCCEEDED(hr))
{
/*assert(pida->cidl==1);*/
LPIDA pida = GlobalLock(medium.u.hGlobal);
LPCITEMIDLIST pidl_folder = (LPCITEMIDLIST) ((LPBYTE)pida+pida->aoffset[0]);
LPCITEMIDLIST pidl_child = (LPCITEMIDLIST) ((LPBYTE)pida+pida->aoffset[1]);
*pidlReal = ILCombine(pidl_folder, pidl_child);
if (!*pidlReal)
hr = E_OUTOFMEMORY;
GlobalUnlock(medium.u.hGlobal);
GlobalFree(medium.u.hGlobal);
}
}
return hr;
}
/*************************************************************************
* SHLogILFromFSIL [SHELL32.95]
*
* NOTES
* pild = CSIDL_DESKTOP ret = 0
* pild = CSIDL_DRIVES ret = 0
*/
LPITEMIDLIST WINAPI SHLogILFromFSIL(LPITEMIDLIST pidl)
{
FIXME("(pidl=%p)\n",pidl);
pdump(pidl);
return 0;
}
/*************************************************************************
* ILGetSize [SHELL32.152]
*
* Gets the byte size of an ItemIDList including zero terminator
*
* PARAMS
* pidl [I] ItemIDList
*
* RETURNS
* size of pidl in bytes
*
* NOTES
* exported by ordinal
*/
UINT WINAPI ILGetSize(LPCITEMIDLIST pidl)
{
LPCSHITEMID si = &(pidl->mkid);
UINT len=0;
if (pidl)
{
while (si->cb)
{
len += si->cb;
si = (LPCSHITEMID)(((const BYTE*)si)+si->cb);
}
len += 2;
}
TRACE("pidl=%p size=%u\n",pidl, len);
return len;
}
/*************************************************************************
* ILGetNext [SHELL32.153]
*
* Gets the next ItemID of an ItemIDList
*
* PARAMS
* pidl [I] ItemIDList
*
* RETURNS
* null -> null
* desktop -> null
* simple pidl -> pointer to 0x0000 element
*
* NOTES
* exported by ordinal.
*/
LPITEMIDLIST WINAPI ILGetNext(LPCITEMIDLIST pidl)
{
WORD len;
TRACE("%p\n", pidl);
if (pidl)
{
len = pidl->mkid.cb;
if (len)
{
pidl = (LPCITEMIDLIST) (((const BYTE*)pidl)+len);
TRACE("-- %p\n", pidl);
return (LPITEMIDLIST)pidl;
}
}
return NULL;
}
/*************************************************************************
* ILAppendID [SHELL32.154]
*
* Adds the single ItemID item to the ItemIDList indicated by pidl.
* If bEnd is FALSE, inserts the item in the front of the list,
* otherwise it adds the item to the end. (???)
*
* PARAMS
* pidl [I] ItemIDList to extend
* item [I] ItemID to prepend/append
* bEnd [I] Indicates if the item should be appended
*
* NOTES
* Destroys the passed in idlist! (???)
*/
LPITEMIDLIST WINAPI ILAppendID(LPITEMIDLIST pidl, LPCSHITEMID item, BOOL bEnd)
{
LPITEMIDLIST idlRet;
LPCITEMIDLIST itemid = (LPCITEMIDLIST)item;
WARN("(pidl=%p,pidl=%p,%08u)semi-stub\n",pidl,item,bEnd);
pdump (pidl);
pdump (itemid);
if (_ILIsDesktop(pidl))
{
idlRet = ILClone(itemid);
SHFree (pidl);
return idlRet;
}
if (bEnd)
idlRet = ILCombine(pidl, itemid);
else
idlRet = ILCombine(itemid, pidl);
SHFree(pidl);
return idlRet;
}
/*************************************************************************
* ILFree [SHELL32.155]
*
* Frees memory (if not NULL) allocated by SHMalloc allocator
*
* PARAMS
* pidl [I]
*
* RETURNS
* Nothing
*
* NOTES
* exported by ordinal
*/
void WINAPI ILFree(LPITEMIDLIST pidl)
{
TRACE("(pidl=%p)\n",pidl);
SHFree(pidl);
}
/*************************************************************************
* ILGlobalFree [SHELL32.156]
*
* Frees memory (if not NULL) allocated by Alloc allocator
*
* PARAMS
* pidl [I]
*
* RETURNS
* Nothing
*
* NOTES
* exported by ordinal.
*/
void WINAPI ILGlobalFree( LPITEMIDLIST pidl)
{
TRACE("%p\n", pidl);
Free(pidl);
}
/*************************************************************************
* ILCreateFromPathA [SHELL32.189]
*
* Creates a complex ItemIDList from a path and returns it.
*
* PARAMS
* path [I]
*
* RETURNS
* the newly created complex ItemIDList or NULL if failed
*
* NOTES
* exported by ordinal.
*/
LPITEMIDLIST WINAPI ILCreateFromPathA (LPCSTR path)
{
LPITEMIDLIST pidlnew = NULL;
TRACE_(shell)("%s\n", debugstr_a(path));
if (SUCCEEDED(SHILCreateFromPathA(path, &pidlnew, NULL)))
return pidlnew;
return NULL;
}
/*************************************************************************
* ILCreateFromPathW [SHELL32.190]
*
* See ILCreateFromPathA.
*/
LPITEMIDLIST WINAPI ILCreateFromPathW (LPCWSTR path)
{
LPITEMIDLIST pidlnew = NULL;
TRACE_(shell)("%s\n", debugstr_w(path));
if (SUCCEEDED(SHILCreateFromPathW(path, &pidlnew, NULL)))
return pidlnew;
return NULL;
}
/*************************************************************************
* ILCreateFromPath [SHELL32.157]
*/
LPITEMIDLIST WINAPI ILCreateFromPathAW (LPCVOID path)
{
if ( SHELL_OsIsUnicode())
return ILCreateFromPathW (path);
return ILCreateFromPathA (path);
}
/*************************************************************************
* _ILParsePathW [internal]
*
* Creates an ItemIDList from a path and returns it.
*
* PARAMS
* path [I] path to parse and convert into an ItemIDList
* lpFindFile [I] pointer to buffer to initialize the FileSystem
* Bind Data object with
* bBindCtx [I] indicates to create a BindContext and assign a
* FileSystem Bind Data object
* ppidl [O] the newly create ItemIDList
* prgfInOut [I/O] requested attributes on input and actual
* attributes on return
*
* RETURNS
* NO_ERROR on success or an OLE error code
*
* NOTES
* If either lpFindFile is non-NULL or bBindCtx is TRUE, this function
* creates a BindContext object and assigns a FileSystem Bind Data object
* to it, passing the BindContext to IShellFolder_ParseDisplayName. Each
* IShellFolder uses that FileSystem Bind Data object of the BindContext
* to pass data about the current path element to the next object. This
* is used to avoid having to verify the current path element on disk, so
* that creating an ItemIDList from a nonexistent path still can work.
*/
static HRESULT _ILParsePathW(LPCWSTR path, LPWIN32_FIND_DATAW lpFindFile,
BOOL bBindCtx, LPITEMIDLIST *ppidl, LPDWORD prgfInOut)
{
LPSHELLFOLDER pSF = NULL;
LPBC pBC = NULL;
HRESULT ret;
TRACE("%s %p %d (%p)->%p (%p)->0x%x\n", debugstr_w(path), lpFindFile, bBindCtx,
ppidl, ppidl ? *ppidl : NULL,
prgfInOut, prgfInOut ? *prgfInOut : 0);
ret = SHGetDesktopFolder(&pSF);
if (FAILED(ret))
return ret;
if (lpFindFile || bBindCtx)
ret = IFileSystemBindData_Constructor(lpFindFile, &pBC);
if (SUCCEEDED(ret))
{
ret = IShellFolder_ParseDisplayName(pSF, 0, pBC, (LPOLESTR)path, NULL, ppidl, prgfInOut);
}
if (pBC)
{
IBindCtx_Release(pBC);
pBC = NULL;
}
IShellFolder_Release(pSF);
if (FAILED(ret) && ppidl)
*ppidl = NULL;
TRACE("%s %p 0x%x\n", debugstr_w(path), ppidl ? *ppidl : NULL, prgfInOut ? *prgfInOut : 0);
return ret;
}
/*************************************************************************
* SHSimpleIDListFromPath [SHELL32.162]
*
* Creates a simple ItemIDList from a path and returns it. This function
* does not fail on nonexistent paths.
*
* PARAMS
* path [I] path to parse and convert into an ItemIDList
*
* RETURNS
* the newly created simple ItemIDList
*
* NOTES
* Simple in the name does not mean a relative ItemIDList but rather a
* fully qualified list, where only the file name is filled in and the
* directory flag for those ItemID elements this is known about, eg.
* it is not the last element in the ItemIDList or the actual directory
* exists on disk.
* exported by ordinal.
*/
LPITEMIDLIST SHSimpleIDListFromPathA(LPCSTR lpszPath)
{
LPITEMIDLIST pidl = NULL;
LPWSTR wPath = NULL;
int len;
TRACE("%s\n", debugstr_a(lpszPath));
if (lpszPath)
{
len = MultiByteToWideChar(CP_ACP, 0, lpszPath, -1, NULL, 0);
wPath = heap_alloc(len * sizeof(WCHAR));
MultiByteToWideChar(CP_ACP, 0, lpszPath, -1, wPath, len);
}
_ILParsePathW(wPath, NULL, TRUE, &pidl, NULL);
heap_free(wPath);
TRACE("%s %p\n", debugstr_a(lpszPath), pidl);
return pidl;
}
LPITEMIDLIST SHSimpleIDListFromPathW(LPCWSTR lpszPath)
{
LPITEMIDLIST pidl = NULL;
TRACE("%s\n", debugstr_w(lpszPath));
_ILParsePathW(lpszPath, NULL, TRUE, &pidl, NULL);
TRACE("%s %p\n", debugstr_w(lpszPath), pidl);
return pidl;
}
LPITEMIDLIST WINAPI SHSimpleIDListFromPathAW(LPCVOID lpszPath)
{
if ( SHELL_OsIsUnicode())
return SHSimpleIDListFromPathW (lpszPath);
return SHSimpleIDListFromPathA (lpszPath);
}
/*************************************************************************
* SHGetDataFromIDListA [SHELL32.247]
*
* NOTES
* the pidl can be a simple one. since we can't get the path out of the pidl
* we have to take all data from the pidl
*/
HRESULT WINAPI SHGetDataFromIDListA(LPSHELLFOLDER psf, LPCITEMIDLIST pidl,
int nFormat, LPVOID dest, int len)
{
LPSTR filename, shortname;
WIN32_FIND_DATAA * pfd;
TRACE_(shell)("%p, %p, %d, %p, %d.\n", psf, pidl, nFormat, dest, len);
pdump(pidl);
if (!psf || !dest)
return E_INVALIDARG;
switch (nFormat)
{
case SHGDFIL_FINDDATA:
pfd = dest;
if (_ILIsDrive(pidl) || _ILIsSpecialFolder(pidl))
return E_INVALIDARG;
if (len < sizeof(WIN32_FIND_DATAA))
return E_INVALIDARG;
ZeroMemory(pfd, sizeof (WIN32_FIND_DATAA));
_ILGetFileDateTime( pidl, &(pfd->ftLastWriteTime));
pfd->dwFileAttributes = _ILGetFileAttributes(pidl, NULL, 0);
pfd->nFileSizeLow = _ILGetFileSize ( pidl, NULL, 0);
filename = _ILGetTextPointer(pidl);
shortname = _ILGetSTextPointer(pidl);
if (filename)
lstrcpynA(pfd->cFileName, filename, sizeof(pfd->cFileName));
else
pfd->cFileName[0] = '\0';
if (shortname)
lstrcpynA(pfd->cAlternateFileName, shortname, sizeof(pfd->cAlternateFileName));
else
pfd->cAlternateFileName[0] = '\0';
return S_OK;
case SHGDFIL_NETRESOURCE:
case SHGDFIL_DESCRIPTIONID:
FIXME_(shell)("SHGDFIL %i stub\n", nFormat);
break;
default:
ERR_(shell)("Unknown SHGDFIL %i, please report\n", nFormat);
}
return E_INVALIDARG;
}
/*************************************************************************
* SHGetDataFromIDListW [SHELL32.248]
*
*/
HRESULT WINAPI SHGetDataFromIDListW(LPSHELLFOLDER psf, LPCITEMIDLIST pidl,
int nFormat, LPVOID dest, int len)
{
LPSTR filename, shortname;
WIN32_FIND_DATAW * pfd = dest;
TRACE_(shell)("%p, %p, %d, %p, %d.\n", psf, pidl, nFormat, dest, len);
pdump(pidl);
if (!psf || !dest)
return E_INVALIDARG;
switch (nFormat)
{
case SHGDFIL_FINDDATA:
pfd = dest;
if (_ILIsDrive(pidl))
return E_INVALIDARG;
if (len < sizeof(WIN32_FIND_DATAW))
return E_INVALIDARG;
ZeroMemory(pfd, sizeof (WIN32_FIND_DATAW));
_ILGetFileDateTime( pidl, &(pfd->ftLastWriteTime));
pfd->dwFileAttributes = _ILGetFileAttributes(pidl, NULL, 0);
pfd->nFileSizeLow = _ILGetFileSize ( pidl, NULL, 0);
filename = _ILGetTextPointer(pidl);
shortname = _ILGetSTextPointer(pidl);
if (!filename)
pfd->cFileName[0] = '\0';
else if (!MultiByteToWideChar(CP_ACP, 0, filename, -1, pfd->cFileName, MAX_PATH))
pfd->cFileName[MAX_PATH-1] = 0;
if (!shortname)
pfd->cAlternateFileName[0] = '\0';
else if (!MultiByteToWideChar(CP_ACP, 0, shortname, -1, pfd->cAlternateFileName, 14))
pfd->cAlternateFileName[13] = 0;
return S_OK;
case SHGDFIL_NETRESOURCE:
case SHGDFIL_DESCRIPTIONID:
FIXME_(shell)("SHGDFIL %i stub\n", nFormat);
break;
default:
ERR_(shell)("Unknown SHGDFIL %i, please report\n", nFormat);
}
return E_INVALIDARG;
}
/*************************************************************************
* SHGetPathFromIDListA [SHELL32.@][NT 4.0: SHELL32.220]
*
* PARAMETERS
* pidl, [IN] pidl
* pszPath [OUT] path
*
* RETURNS
* path from a passed PIDL.
*
* NOTES
* NULL returns FALSE
* desktop pidl gives path to desktop directory back
* special pidls returning FALSE
*/
BOOL WINAPI SHGetPathFromIDListA(LPCITEMIDLIST pidl, LPSTR pszPath)
{
WCHAR wszPath[MAX_PATH];
BOOL bSuccess;
bSuccess = SHGetPathFromIDListW(pidl, wszPath);
WideCharToMultiByte(CP_ACP, 0, wszPath, -1, pszPath, MAX_PATH, NULL, NULL);
return bSuccess;
}
/*************************************************************************
* SHGetPathFromIDListW [SHELL32.@]
*
* See SHGetPathFromIDListA.
*/
BOOL WINAPI SHGetPathFromIDListW(LPCITEMIDLIST pidl, LPWSTR pszPath)
{
return SHGetPathFromIDListEx(pidl, pszPath, MAX_PATH, 0);
}
/*************************************************************************
* SHGetPathFromIDListEx [SHELL32.@]
*/
BOOL WINAPI SHGetPathFromIDListEx(LPCITEMIDLIST pidl, WCHAR *path, DWORD path_size, GPFIDL_FLAGS flags)
{
HRESULT hr;
LPCITEMIDLIST pidlLast;
LPSHELLFOLDER psfFolder;
DWORD dwAttributes;
STRRET strret;
TRACE_(shell)("(pidl=%p,%p,%u,%x)\n", pidl, path, path_size, flags);
pdump(pidl);
if (flags != GPFIDL_DEFAULT)
FIXME("Unsupported flags %x\n", flags);
*path = '\0';
if (!pidl)
return FALSE;
hr = SHBindToParent(pidl, &IID_IShellFolder, (VOID**)&psfFolder, &pidlLast);
if (FAILED(hr)) return FALSE;
dwAttributes = SFGAO_FILESYSTEM;
hr = IShellFolder_GetAttributesOf(psfFolder, 1, &pidlLast, &dwAttributes);
if (FAILED(hr) || !(dwAttributes & SFGAO_FILESYSTEM)) {
IShellFolder_Release(psfFolder);
return FALSE;
}
hr = IShellFolder_GetDisplayNameOf(psfFolder, pidlLast, SHGDN_FORPARSING, &strret);
IShellFolder_Release(psfFolder);
if (FAILED(hr)) return FALSE;
hr = StrRetToBufW(&strret, pidlLast, path, path_size);
TRACE_(shell)("-- %s, 0x%08x\n",debugstr_w(path), hr);
return SUCCEEDED(hr);
}
/*************************************************************************
* SHBindToParent [shell version 5.0]
*/
HRESULT WINAPI SHBindToParent(LPCITEMIDLIST pidl, REFIID riid, LPVOID *ppv, LPCITEMIDLIST *ppidlLast)
{
IShellFolder * psfDesktop;
HRESULT hr=E_FAIL;
TRACE_(shell)("pidl=%p\n", pidl);
pdump(pidl);
if (!pidl || !ppv)
return E_INVALIDARG;
*ppv = NULL;
if (ppidlLast)
*ppidlLast = NULL;
hr = SHGetDesktopFolder(&psfDesktop);
if (FAILED(hr))
return hr;
if (_ILIsPidlSimple(pidl))
{
/* we are on desktop level */
hr = IShellFolder_QueryInterface(psfDesktop, riid, ppv);
}
else
{
LPITEMIDLIST pidlParent = ILClone(pidl);
ILRemoveLastID(pidlParent);
hr = IShellFolder_BindToObject(psfDesktop, pidlParent, NULL, riid, ppv);
SHFree (pidlParent);
}
IShellFolder_Release(psfDesktop);
if (SUCCEEDED(hr) && ppidlLast)
*ppidlLast = ILFindLastID(pidl);
TRACE_(shell)("-- psf=%p pidl=%p ret=0x%08x\n", *ppv, (ppidlLast)?*ppidlLast:NULL, hr);
return hr;
}
HRESULT WINAPI SHBindToObject(IShellFolder *psf, LPCITEMIDLIST pidl, IBindCtx *pbc, REFIID riid, void **ppv)
{
IShellFolder *psfDesktop = NULL;
HRESULT hr;
TRACE_(shell)("%p,%p,%p,%s,%p\n", psf, pidl, pbc, debugstr_guid(riid), ppv);
pdump(pidl);
if (!ppv)
return E_INVALIDARG;
*ppv = NULL;
if (!psf)
{
hr = SHGetDesktopFolder(&psfDesktop);
if (FAILED(hr))
return hr;
psf = psfDesktop;
}
if (_ILIsPidlSimple(pidl))
/* we are on desktop level */
hr = IShellFolder_QueryInterface(psf, riid, ppv);
else
hr = IShellFolder_BindToObject(psf, pidl, pbc, riid, ppv);
if (psfDesktop)
IShellFolder_Release(psfDesktop);
TRACE_(shell)("-- ppv=%p ret=0x%08x\n", *ppv, hr);
return hr;
}
/*************************************************************************
* SHParseDisplayName [SHELL32.@]
*/
HRESULT WINAPI SHParseDisplayName(LPCWSTR name, IBindCtx *bindctx, LPITEMIDLIST *pidlist,
SFGAOF attr_in, SFGAOF *attr_out)
{
IShellFolder *desktop;
HRESULT hr;
TRACE("%s %p %p %d %p\n", debugstr_w(name), bindctx, pidlist, attr_in, attr_out);
*pidlist = NULL;
if (!name) return E_INVALIDARG;
hr = SHGetDesktopFolder(&desktop);
if (hr != S_OK) return hr;
hr = IShellFolder_ParseDisplayName(desktop, NULL, bindctx, (LPWSTR)name, NULL, pidlist, &attr_in);
if (attr_out) *attr_out = attr_in;
IShellFolder_Release(desktop);
return hr;
}
/*************************************************************************
* SHGetNameFromIDList [SHELL32.@]
*/
HRESULT WINAPI SHGetNameFromIDList(PCIDLIST_ABSOLUTE pidl, SIGDN sigdnName, PWSTR *ppszName)
{
IShellFolder *psfparent;
LPCITEMIDLIST child_pidl;
STRRET disp_name;
HRESULT ret;
TRACE("%p 0x%08x %p\n", pidl, sigdnName, ppszName);
*ppszName = NULL;
ret = SHBindToParent(pidl, &IID_IShellFolder, (void**)&psfparent, &child_pidl);
if(SUCCEEDED(ret))
{
switch(sigdnName)
{
/* sigdnName & 0xffff */
case SIGDN_NORMALDISPLAY: /* SHGDN_NORMAL */
case SIGDN_PARENTRELATIVEPARSING: /* SHGDN_INFOLDER | SHGDN_FORPARSING */
case SIGDN_PARENTRELATIVEEDITING: /* SHGDN_INFOLDER | SHGDN_FOREDITING */
case SIGDN_DESKTOPABSOLUTEPARSING: /* SHGDN_FORPARSING */
case SIGDN_DESKTOPABSOLUTEEDITING: /* SHGDN_FOREDITING | SHGDN_FORADDRESSBAR*/
case SIGDN_PARENTRELATIVEFORADDRESSBAR: /* SIGDN_INFOLDER | SHGDN_FORADDRESSBAR */
case SIGDN_PARENTRELATIVE: /* SIGDN_INFOLDER */
disp_name.uType = STRRET_WSTR;
ret = IShellFolder_GetDisplayNameOf(psfparent, child_pidl,
sigdnName & 0xffff,
&disp_name);
if(SUCCEEDED(ret))
ret = StrRetToStrW(&disp_name, pidl, ppszName);
break;
case SIGDN_FILESYSPATH:
*ppszName = CoTaskMemAlloc(sizeof(WCHAR)*MAX_PATH);
if(SHGetPathFromIDListW(pidl, *ppszName))
{
TRACE("Got string %s\n", debugstr_w(*ppszName));
ret = S_OK;
}
else
{
CoTaskMemFree(*ppszName);
ret = E_INVALIDARG;
}
break;
case SIGDN_URL:
default:
FIXME("Unsupported SIGDN %x\n", sigdnName);
ret = E_FAIL;
}
IShellFolder_Release(psfparent);
}
return ret;
}
/*************************************************************************
* SHGetIDListFromObject [SHELL32.@]
*/
HRESULT WINAPI SHGetIDListFromObject(IUnknown *punk, PIDLIST_ABSOLUTE *ppidl)
{
IPersistIDList *ppersidl;
IPersistFolder2 *ppf2;
IDataObject *pdo;
IFolderView *pfv;
HRESULT ret;
if(!punk)
return E_NOINTERFACE;
*ppidl = NULL;
/* Try IPersistIDList */
ret = IUnknown_QueryInterface(punk, &IID_IPersistIDList, (void**)&ppersidl);
if(SUCCEEDED(ret))
{
TRACE("IPersistIDList (%p)\n", ppersidl);
ret = IPersistIDList_GetIDList(ppersidl, ppidl);
IPersistIDList_Release(ppersidl);
if(SUCCEEDED(ret))
return ret;
}
/* Try IPersistFolder2 */
ret = IUnknown_QueryInterface(punk, &IID_IPersistFolder2, (void**)&ppf2);
if(SUCCEEDED(ret))
{
TRACE("IPersistFolder2 (%p)\n", ppf2);
ret = IPersistFolder2_GetCurFolder(ppf2, ppidl);
IPersistFolder2_Release(ppf2);
if(SUCCEEDED(ret))
return ret;
}
/* Try IDataObject */
ret = IUnknown_QueryInterface(punk, &IID_IDataObject, (void**)&pdo);
if(SUCCEEDED(ret))
{
IShellItem *psi;
TRACE("IDataObject (%p)\n", pdo);
ret = SHGetItemFromDataObject(pdo, DOGIF_ONLY_IF_ONE,
&IID_IShellItem, (void**)&psi);
if(SUCCEEDED(ret))
{
ret = SHGetIDListFromObject((IUnknown*)psi, ppidl);
IShellItem_Release(psi);
}
IDataObject_Release(pdo);
if(SUCCEEDED(ret))
return ret;
}
/* Try IFolderView */
ret = IUnknown_QueryInterface(punk, &IID_IFolderView, (void**)&pfv);
if(SUCCEEDED(ret))
{
IShellFolder *psf;
TRACE("IFolderView (%p)\n", pfv);
ret = IFolderView_GetFolder(pfv, &IID_IShellFolder, (void**)&psf);
if(SUCCEEDED(ret))
{
/* We might be able to get IPersistFolder2 from a shellfolder. */
ret = SHGetIDListFromObject((IUnknown*)psf, ppidl);
IShellFolder_Release(psf);
}
IFolderView_Release(pfv);
return ret;
}
return ret;
}
/**************************************************************************
*
* internal functions
*
* ### 1. section creating pidls ###
*
*************************************************************************
*/
/* Basic PIDL constructor. Allocates size + 5 bytes, where:
* - two bytes are SHITEMID.cb
* - one byte is PIDLDATA.type
* - two bytes are the NULL PIDL terminator
* Sets type of the returned PIDL to type.
*/
static LPITEMIDLIST _ILAlloc(PIDLTYPE type, unsigned int size)
{
LPITEMIDLIST pidlOut = NULL;
pidlOut = SHAlloc(size + 5);
if(pidlOut)
{
LPPIDLDATA pData;
LPITEMIDLIST pidlNext;
ZeroMemory(pidlOut, size + 5);
pidlOut->mkid.cb = size + 3;
pData = _ILGetDataPointer(pidlOut);
if (pData)
pData->type = type;
pidlNext = ILGetNext(pidlOut);
if (pidlNext)
pidlNext->mkid.cb = 0x00;
TRACE("-- (pidl=%p, size=%u)\n", pidlOut, size);
}
return pidlOut;
}
LPITEMIDLIST _ILCreateDesktop(void)
{
LPITEMIDLIST ret;
TRACE("()\n");
ret = SHAlloc(2);
if (ret)
ret->mkid.cb = 0;
return ret;
}
LPITEMIDLIST _ILCreateMyComputer(void)
{
TRACE("()\n");
return _ILCreateGuid(PT_GUID, &CLSID_MyComputer);
}
LPITEMIDLIST _ILCreateMyDocuments(void)
{
TRACE("()\n");
return _ILCreateGuid(PT_GUID, &CLSID_MyDocuments);
}
LPITEMIDLIST _ILCreateIExplore(void)
{
TRACE("()\n");
return _ILCreateGuid(PT_GUID, &CLSID_Internet);
}
LPITEMIDLIST _ILCreateControlPanel(void)
{
LPITEMIDLIST parent = _ILCreateGuid(PT_GUID, &CLSID_MyComputer), ret = NULL;
TRACE("()\n");
if (parent)
{
LPITEMIDLIST cpl = _ILCreateGuid(PT_SHELLEXT, &CLSID_ControlPanel);
if (cpl)
{
ret = ILCombine(parent, cpl);
SHFree(cpl);
}
SHFree(parent);
}
return ret;
}
LPITEMIDLIST _ILCreatePrinters(void)
{
LPITEMIDLIST parent = _ILCreateGuid(PT_GUID, &CLSID_MyComputer), ret = NULL;
TRACE("()\n");
if (parent)
{
LPITEMIDLIST printers = _ILCreateGuid(PT_YAGUID, &CLSID_Printers);
if (printers)
{
ret = ILCombine(parent, printers);
SHFree(printers);
}
SHFree(parent);
}
return ret;
}
LPITEMIDLIST _ILCreateNetwork(void)
{
TRACE("()\n");
return _ILCreateGuid(PT_GUID, &CLSID_NetworkPlaces);
}
LPITEMIDLIST _ILCreateBitBucket(void)
{
TRACE("()\n");
return _ILCreateGuid(PT_GUID, &CLSID_RecycleBin);
}
LPITEMIDLIST _ILCreateNetHood(void)
{
TRACE("()\n");
return _ILCreateGuid(PT_GUID, &CLSID_NetworkPlaces);
}
LPITEMIDLIST _ILCreateGuid(PIDLTYPE type, REFIID guid)
{
LPITEMIDLIST pidlOut;
if (type == PT_SHELLEXT || type == PT_GUID || type == PT_YAGUID)
{
pidlOut = _ILAlloc(type, sizeof(GUIDStruct));
if (pidlOut)
{
LPPIDLDATA pData = _ILGetDataPointer(pidlOut);
pData->u.guid.guid = *guid;
TRACE("-- create GUID-pidl %s\n",
debugstr_guid(&(pData->u.guid.guid)));
}
}
else
{
WARN("%d: invalid type for GUID\n", type);
pidlOut = NULL;
}
return pidlOut;
}
LPITEMIDLIST _ILCreateGuidFromStrA(LPCSTR szGUID)
{
IID iid;
if (FAILED(SHCLSIDFromStringA(szGUID, &iid)))
{
ERR("%s is not a GUID\n", szGUID);
return NULL;
}
return _ILCreateGuid(PT_GUID, &iid);
}
LPITEMIDLIST _ILCreateGuidFromStrW(LPCWSTR szGUID)
{
IID iid;
if (FAILED(SHCLSIDFromStringW(szGUID, &iid)))
{
ERR("%s is not a GUID\n", debugstr_w(szGUID));
return NULL;
}
return _ILCreateGuid(PT_GUID, &iid);
}
LPITEMIDLIST _ILCreateFromFindDataW( const WIN32_FIND_DATAW *wfd )
{
DWORD wlen, alen;
LPITEMIDLIST pidl;
PIDLTYPE type;
if (!wfd)
return NULL;
TRACE("(%s, %s)\n",debugstr_w(wfd->cAlternateFileName), debugstr_w(wfd->cFileName));
type = (wfd->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) ? PT_FOLDER : PT_VALUE;
alen = WideCharToMultiByte( CP_ACP, 0, wfd->cFileName, -1, NULL, 0, NULL, NULL );
wlen = lstrlenW(wfd->cFileName) + 1;
pidl = _ILAlloc(type, FIELD_OFFSET(FileStruct, szNames[alen + (alen & 1)]) +
FIELD_OFFSET(FileStructW, wszName[wlen]) + sizeof(WORD));
if (pidl)
{
LPPIDLDATA pData = _ILGetDataPointer(pidl);
FileStruct *fs = &pData->u.file;
FileStructW *fsw;
WORD *pOffsetW;
FileTimeToDosDateTime( &wfd->ftLastWriteTime, &fs->uFileDate, &fs->uFileTime);
fs->dwFileSize = wfd->nFileSizeLow;
fs->uFileAttribs = wfd->dwFileAttributes;
WideCharToMultiByte( CP_ACP, 0, wfd->cFileName, -1, fs->szNames, alen, NULL, NULL );
fsw = (FileStructW*)(pData->u.file.szNames + alen + (alen & 0x1));
fsw->cbLen = FIELD_OFFSET(FileStructW, wszName[wlen]) + sizeof(WORD);
FileTimeToDosDateTime( &wfd->ftCreationTime, &fsw->uCreationDate, &fsw->uCreationTime);
FileTimeToDosDateTime( &wfd->ftLastAccessTime, &fsw->uLastAccessDate, &fsw->uLastAccessTime);
memcpy(fsw->wszName, wfd->cFileName, wlen * sizeof(WCHAR));
pOffsetW = (WORD*)((LPBYTE)pidl + pidl->mkid.cb - sizeof(WORD));
*pOffsetW = (LPBYTE)fsw - (LPBYTE)pidl;
TRACE("-- Set Value: %s\n",debugstr_w(fsw->wszName));
}
return pidl;
}
HRESULT _ILCreateFromPathW(LPCWSTR szPath, LPITEMIDLIST* ppidl)
{
HANDLE hFile;
WIN32_FIND_DATAW stffile;
if (!ppidl)
return E_INVALIDARG;
hFile = FindFirstFileW(szPath, &stffile);
if (hFile == INVALID_HANDLE_VALUE)
return HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND);
FindClose(hFile);
*ppidl = _ILCreateFromFindDataW(&stffile);
return *ppidl ? S_OK : E_OUTOFMEMORY;
}
LPITEMIDLIST _ILCreateDrive(LPCWSTR lpszNew)
{
LPITEMIDLIST pidlOut;
TRACE("(%s)\n",debugstr_w(lpszNew));
pidlOut = _ILAlloc(PT_DRIVE, sizeof(DriveStruct));
if (pidlOut)
{
LPSTR pszDest;
pszDest = _ILGetTextPointer(pidlOut);
if (pszDest)
{
strcpy(pszDest, "x:\\");
pszDest[0]=toupperW(lpszNew[0]);
TRACE("-- create Drive: %s\n", debugstr_a(pszDest));
}
}
return pidlOut;
}
LPITEMIDLIST _ILCreateEntireNetwork(void)
{
LPITEMIDLIST pidlOut;
TRACE("\n");
pidlOut = _ILAlloc(PT_NETWORK, FIELD_OFFSET(PIDLDATA, u.network.szNames[sizeof("Entire Network")]));
if (pidlOut)
{
LPPIDLDATA pData = _ILGetDataPointer(pidlOut);
pData->u.network.dummy = 0;
strcpy(pData->u.network.szNames, "Entire Network");
}
return pidlOut;
}
/**************************************************************************
* _ILGetDrive()
*
* Gets the text for the drive eg. 'c:\'
*
* RETURNS
* strlen (lpszText)
*/
DWORD _ILGetDrive(LPCITEMIDLIST pidl,LPSTR pOut, UINT uSize)
{
TRACE("(%p,%p,%u)\n",pidl,pOut,uSize);
if(_ILIsMyComputer(pidl))
pidl = ILGetNext(pidl);
if (pidl && _ILIsDrive(pidl))
return _ILSimpleGetText(pidl, pOut, uSize);
return 0;
}
/**************************************************************************
*
* ### 2. section testing pidls ###
*
**************************************************************************
* _ILIsUnicode()
* _ILIsDesktop()
* _ILIsMyComputer()
* _ILIsSpecialFolder()
* _ILIsDrive()
* _ILIsFolder()
* _ILIsValue()
* _ILIsPidlSimple()
*/
BOOL _ILIsUnicode(LPCITEMIDLIST pidl)
{
LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
TRACE("(%p)\n",pidl);
return (pidl && lpPData && PT_VALUEW == lpPData->type);
}
BOOL _ILIsDesktop(LPCITEMIDLIST pidl)
{
TRACE("(%p)\n",pidl);
return !pidl || !pidl->mkid.cb;
}
BOOL _ILIsMyComputer(LPCITEMIDLIST pidl)
{
REFIID iid = _ILGetGUIDPointer(pidl);
TRACE("(%p)\n",pidl);
if (iid)
return IsEqualIID(iid, &CLSID_MyComputer);
return FALSE;
}
BOOL _ILIsSpecialFolder (LPCITEMIDLIST pidl)
{
LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
TRACE("(%p)\n",pidl);
return (pidl && ( (lpPData && (PT_GUID== lpPData->type || PT_SHELLEXT== lpPData->type || PT_YAGUID == lpPData->type)) ||
(pidl && pidl->mkid.cb == 0x00)
));
}
BOOL _ILIsDrive(LPCITEMIDLIST pidl)
{
LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
TRACE("(%p)\n",pidl);
return (pidl && lpPData && (PT_DRIVE == lpPData->type ||
PT_DRIVE1 == lpPData->type ||
PT_DRIVE2 == lpPData->type ||
PT_DRIVE3 == lpPData->type));
}
BOOL _ILIsFolder(LPCITEMIDLIST pidl)
{
LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
TRACE("(%p)\n",pidl);
return (pidl && lpPData && (PT_FOLDER == lpPData->type || PT_FOLDER1 == lpPData->type));
}
BOOL _ILIsValue(LPCITEMIDLIST pidl)
{
LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
TRACE("(%p)\n",pidl);
return (pidl && lpPData && PT_VALUE == lpPData->type);
}
BOOL _ILIsCPanelStruct(LPCITEMIDLIST pidl)
{
LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
TRACE("(%p)\n",pidl);
return (pidl && lpPData && (lpPData->type == 0));
}
/**************************************************************************
* _ILIsPidlSimple
*/
BOOL _ILIsPidlSimple(LPCITEMIDLIST pidl)
{
BOOL ret = TRUE;
if(! _ILIsDesktop(pidl)) /* pidl=NULL or mkid.cb=0 */
{
WORD len = pidl->mkid.cb;
LPCITEMIDLIST pidlnext = (LPCITEMIDLIST) (((const BYTE*)pidl) + len );
if (pidlnext->mkid.cb)
ret = FALSE;
}
TRACE("%s\n", ret ? "Yes" : "No");
return ret;
}
/**************************************************************************
*
* ### 3. section getting values from pidls ###
*/
/**************************************************************************
* _ILSimpleGetText
*
* gets the text for the first item in the pidl (eg. simple pidl)
*
* returns the length of the string
*/
DWORD _ILSimpleGetText (LPCITEMIDLIST pidl, LPSTR szOut, UINT uOutSize)
{
DWORD dwReturn=0;
LPSTR szSrc;
LPWSTR szSrcW;
GUID const * riid;
char szTemp[MAX_PATH];
TRACE("(%p %p %x)\n",pidl,szOut,uOutSize);
if (!pidl)
return 0;
if (szOut)
*szOut = 0;
if (_ILIsDesktop(pidl))
{
/* desktop */
if (HCR_GetClassNameA(&CLSID_ShellDesktop, szTemp, MAX_PATH))
{
if (szOut)
lstrcpynA(szOut, szTemp, uOutSize);
dwReturn = strlen (szTemp);
}
}
else if (( szSrc = _ILGetTextPointer(pidl) ))
{
/* filesystem */
if (szOut)
lstrcpynA(szOut, szSrc, uOutSize);
dwReturn = strlen(szSrc);
}
else if (( szSrcW = _ILGetTextPointerW(pidl) ))
{
/* unicode filesystem */
WideCharToMultiByte(CP_ACP,0,szSrcW, -1, szTemp, MAX_PATH, NULL, NULL);
if (szOut)
lstrcpynA(szOut, szTemp, uOutSize);
dwReturn = strlen (szTemp);
}
else if (( riid = _ILGetGUIDPointer(pidl) ))
{
/* special folder */
if ( HCR_GetClassNameA(riid, szTemp, MAX_PATH) )
{
if (szOut)
lstrcpynA(szOut, szTemp, uOutSize);
dwReturn = strlen (szTemp);
}
}
else
{
ERR("-- no text\n");
}
TRACE("-- (%p=%s 0x%08x)\n",szOut,debugstr_a(szOut),dwReturn);
return dwReturn;
}
/**************************************************************************
* _ILSimpleGetTextW
*
* gets the text for the first item in the pidl (eg. simple pidl)
*
* returns the length of the string
*/
DWORD _ILSimpleGetTextW (LPCITEMIDLIST pidl, LPWSTR szOut, UINT uOutSize)
{
DWORD dwReturn;
FileStructW *pFileStructW = _ILGetFileStructW(pidl);
TRACE("(%p %p %x)\n",pidl,szOut,uOutSize);
if (pFileStructW) {
lstrcpynW(szOut, pFileStructW->wszName, uOutSize);
dwReturn = lstrlenW(pFileStructW->wszName);
} else {
GUID const * riid;
WCHAR szTemp[MAX_PATH];
LPSTR szSrc;
LPWSTR szSrcW;
dwReturn=0;
if (!pidl)
return 0;
if (szOut)
*szOut = 0;
if (_ILIsDesktop(pidl))
{
/* desktop */
if (HCR_GetClassNameW(&CLSID_ShellDesktop, szTemp, MAX_PATH))
{
if (szOut)
lstrcpynW(szOut, szTemp, uOutSize);
dwReturn = lstrlenW (szTemp);
}
}
else if (( szSrcW = _ILGetTextPointerW(pidl) ))
{
/* unicode filesystem */
if (szOut)
lstrcpynW(szOut, szSrcW, uOutSize);
dwReturn = lstrlenW(szSrcW);
}
else if (( szSrc = _ILGetTextPointer(pidl) ))
{
/* filesystem */
MultiByteToWideChar(CP_ACP, 0, szSrc, -1, szTemp, MAX_PATH);
if (szOut)
lstrcpynW(szOut, szTemp, uOutSize);
dwReturn = lstrlenW (szTemp);
}
else if (( riid = _ILGetGUIDPointer(pidl) ))
{
/* special folder */
if ( HCR_GetClassNameW(riid, szTemp, MAX_PATH) )
{
if (szOut)
lstrcpynW(szOut, szTemp, uOutSize);
dwReturn = lstrlenW (szTemp);
}
}
else
{
ERR("-- no text\n");
}
}
TRACE("-- (%p=%s 0x%08x)\n",szOut,debugstr_w(szOut),dwReturn);
return dwReturn;
}
/**************************************************************************
*
* ### 4. getting pointers to parts of pidls ###
*
**************************************************************************
* _ILGetDataPointer()
*/
LPPIDLDATA _ILGetDataPointer(LPCITEMIDLIST pidl)
{
if(!_ILIsEmpty(pidl))
return (LPPIDLDATA)pidl->mkid.abID;
return NULL;
}
/**************************************************************************
* _ILGetTextPointerW()
* gets a pointer to the unicode long filename string stored in the pidl
*/
static LPWSTR _ILGetTextPointerW(LPCITEMIDLIST pidl)
{
/* TRACE(pidl,"(pidl%p)\n", pidl);*/
LPPIDLDATA pdata = _ILGetDataPointer(pidl);
if (!pdata)
return NULL;
switch (pdata->type)
{
case PT_GUID:
case PT_SHELLEXT:
case PT_YAGUID:
return NULL;
case PT_DRIVE:
case PT_DRIVE1:
case PT_DRIVE2:
case PT_DRIVE3:
/*return (LPSTR)&(pdata->u.drive.szDriveName);*/
return NULL;
case PT_FOLDER:
case PT_FOLDER1:
case PT_VALUE:
case PT_IESPECIAL1:
case PT_IESPECIAL2:
/*return (LPSTR)&(pdata->u.file.szNames);*/
return NULL;
case PT_WORKGRP:
case PT_COMP:
case PT_NETWORK:
case PT_NETPROVIDER:
case PT_SHARE:
/*return (LPSTR)&(pdata->u.network.szNames);*/
return NULL;
case PT_VALUEW:
return (LPWSTR)pdata->u.file.szNames;
}
return NULL;
}
/**************************************************************************
* _ILGetTextPointer()
* gets a pointer to the long filename string stored in the pidl
*/
LPSTR _ILGetTextPointer(LPCITEMIDLIST pidl)
{
/* TRACE(pidl,"(pidl%p)\n", pidl);*/
LPPIDLDATA pdata = _ILGetDataPointer(pidl);
if (!pdata)
return NULL;
switch (pdata->type)
{
case PT_GUID:
case PT_SHELLEXT:
case PT_YAGUID:
return NULL;
case PT_DRIVE:
case PT_DRIVE1:
case PT_DRIVE2:
case PT_DRIVE3:
return pdata->u.drive.szDriveName;
case PT_FOLDER:
case PT_FOLDER1:
case PT_VALUE:
case PT_IESPECIAL1:
case PT_IESPECIAL2:
return pdata->u.file.szNames;
case PT_WORKGRP:
case PT_COMP:
case PT_NETWORK:
case PT_NETPROVIDER:
case PT_SHARE:
return pdata->u.network.szNames;
}
return NULL;
}
/**************************************************************************
* _ILGetSTextPointer()
* gets a pointer to the short filename string stored in the pidl
*/
static LPSTR _ILGetSTextPointer(LPCITEMIDLIST pidl)
{
/* TRACE(pidl,"(pidl%p)\n", pidl); */
LPPIDLDATA pdata =_ILGetDataPointer(pidl);
if (!pdata)
return NULL;
switch (pdata->type)
{
case PT_FOLDER:
case PT_VALUE:
case PT_IESPECIAL1:
case PT_IESPECIAL2:
return pdata->u.file.szNames + strlen (pdata->u.file.szNames) + 1;
case PT_WORKGRP:
return pdata->u.network.szNames + strlen (pdata->u.network.szNames) + 1;
}
return NULL;
}
/**************************************************************************
* _ILGetGUIDPointer()
*
* returns reference to guid stored in some pidls
*/
IID* _ILGetGUIDPointer(LPCITEMIDLIST pidl)
{
LPPIDLDATA pdata =_ILGetDataPointer(pidl);
TRACE("%p\n", pidl);
if (!pdata)
return NULL;
TRACE("pdata->type 0x%04x\n", pdata->type);
switch (pdata->type)
{
case PT_SHELLEXT:
case PT_GUID:
case PT_YAGUID:
return &(pdata->u.guid.guid);
default:
TRACE("Unknown pidl type 0x%04x\n", pdata->type);
break;
}
return NULL;
}
/******************************************************************************
* _ILGetFileStructW [Internal]
*
* Get pointer the a SHITEMID's FileStructW field if present
*
* PARAMS
* pidl [I] The SHITEMID
*
* RETURNS
* Success: Pointer to pidl's FileStructW field.
* Failure: NULL
*/
FileStructW* _ILGetFileStructW(LPCITEMIDLIST pidl) {
FileStructW *pFileStructW;
WORD cbOffset;
if (!(_ILIsValue(pidl) || _ILIsFolder(pidl)))
return NULL;
cbOffset = *(const WORD *)((const BYTE *)pidl + pidl->mkid.cb - sizeof(WORD));
pFileStructW = (FileStructW*)((LPBYTE)pidl + cbOffset);
/* Currently I don't see a fool prove way to figure out if a pidl is for sure of WinXP
* style with a FileStructW member. If we switch all our shellfolder-implementations to
* the new format, this won't be a problem. For now, we do as many sanity checks as possible. */
if ((cbOffset & 0x1) || /* FileStructW member is word aligned in the pidl */
/* FileStructW is positioned after FileStruct */
cbOffset < sizeof(pidl->mkid.cb) + sizeof(PIDLTYPE) + sizeof(FileStruct) ||
/* There has to be enough space at cbOffset in the pidl to hold FileStructW and cbOffset */
cbOffset > pidl->mkid.cb - sizeof(cbOffset) - sizeof(FileStructW) ||
pidl->mkid.cb != cbOffset + pFileStructW->cbLen)
{
WARN("Invalid pidl format (cbOffset = %d)!\n", cbOffset);
return NULL;
}
return pFileStructW;
}
/*************************************************************************
* _ILGetFileDateTime
*
* Given the ItemIdList, get the FileTime
*
* PARAMS
* pidl [I] The ItemIDList
* pFt [I] the resulted FILETIME of the file
*
* RETURNS
* True if Successful
*
* NOTES
*
*/
BOOL _ILGetFileDateTime(LPCITEMIDLIST pidl, FILETIME *pFt)
{
LPPIDLDATA pdata = _ILGetDataPointer(pidl);
if (!pdata)
return FALSE;
switch (pdata->type)
{
case PT_FOLDER:
case PT_VALUE:
DosDateTimeToFileTime(pdata->u.file.uFileDate, pdata->u.file.uFileTime, pFt);
break;
default:
return FALSE;
}
return TRUE;
}
BOOL _ILGetFileDate (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
{
FILETIME ft,lft;
SYSTEMTIME time;
BOOL ret;
if (_ILGetFileDateTime( pidl, &ft ))
{
FileTimeToLocalFileTime(&ft, &lft);
FileTimeToSystemTime (&lft, &time);
ret = GetDateFormatA(LOCALE_USER_DEFAULT,DATE_SHORTDATE,&time, NULL, pOut, uOutSize);
if (ret)
{
/* Append space + time without seconds */
pOut[ret-1] = ' ';
GetTimeFormatA(LOCALE_USER_DEFAULT, TIME_NOSECONDS, &time, NULL, &pOut[ret], uOutSize - ret);
}
}
else
{
pOut[0] = '\0';
ret = FALSE;
}
return ret;
}
/*************************************************************************
* _ILGetFileSize
*
* Given the ItemIdList, get the FileSize
*
* PARAMS
* pidl [I] The ItemIDList
* pOut [I] The buffer to save the result
* uOutsize [I] The size of the buffer
*
* RETURNS
* The FileSize
*
* NOTES
* pOut can be null when no string is needed
*
*/
DWORD _ILGetFileSize (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
{
LPPIDLDATA pdata = _ILGetDataPointer(pidl);
DWORD dwSize;
if (!pdata)
return 0;
switch (pdata->type)
{
case PT_VALUE:
dwSize = pdata->u.file.dwFileSize;
if (pOut)
StrFormatKBSizeA(dwSize, pOut, uOutSize);
return dwSize;
}
if (pOut)
*pOut = 0x00;
return 0;
}
BOOL _ILGetExtension (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
{
char szTemp[MAX_PATH];
const char * pPoint;
LPCITEMIDLIST pidlTemp=pidl;
TRACE("pidl=%p\n",pidl);
if (!pidl)
return FALSE;
pidlTemp = ILFindLastID(pidl);
if (!_ILIsValue(pidlTemp))
return FALSE;
if (!_ILSimpleGetText(pidlTemp, szTemp, MAX_PATH))
return FALSE;
pPoint = PathFindExtensionA(szTemp);
if (!*pPoint)
return FALSE;
pPoint++;
lstrcpynA(pOut, pPoint, uOutSize);
TRACE("%s\n",pOut);
return TRUE;
}
/*************************************************************************
* _ILGetFileType
*
* Given the ItemIdList, get the file type description
*
* PARAMS
* pidl [I] The ItemIDList (simple)
* pOut [I] The buffer to save the result
* uOutsize [I] The size of the buffer
*
* RETURNS
* nothing
*
* NOTES
* This function copies as much as possible into the buffer.
*/
void _ILGetFileType(LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
{
if(_ILIsValue(pidl))
{
char sTemp[64];
/* "name" or "name." or any unhandled => "File" */
lstrcpynA (pOut, "File", uOutSize);
/* If there's space for more, try to get a better description. */
if (uOutSize > 6 && _ILGetExtension (pidl, sTemp, 64))
{
if (!( HCR_MapTypeToValueA(sTemp, sTemp, 64, TRUE)
&& HCR_MapTypeToValueA(sTemp, pOut, uOutSize, FALSE ))
&& sTemp[0])
{
lstrcpynA (pOut, sTemp, uOutSize - 6);
strcat (pOut, " file");
}
}
}
else
lstrcpynA(pOut, "Folder", uOutSize);
}
/*************************************************************************
* _ILGetFileAttributes
*
* Given the ItemIdList, get the Attrib string format
*
* PARAMS
* pidl [I] The ItemIDList
* pOut [I] The buffer to save the result
* uOutsize [I] The size of the Buffer
*
* RETURNS
* Attributes
*
* FIXME
* return value 0 in case of error is a valid return value
*
*/
DWORD _ILGetFileAttributes(LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
{
LPPIDLDATA pData = _ILGetDataPointer(pidl);
WORD wAttrib = 0;
int i;
if (!pData)
return 0;
switch(pData->type)
{
case PT_FOLDER:
case PT_VALUE:
wAttrib = pData->u.file.uFileAttribs;
break;
}
if(uOutSize >= 6)
{
i=0;
if(wAttrib & FILE_ATTRIBUTE_READONLY)
pOut[i++] = 'R';
if(wAttrib & FILE_ATTRIBUTE_HIDDEN)
pOut[i++] = 'H';
if(wAttrib & FILE_ATTRIBUTE_SYSTEM)
pOut[i++] = 'S';
if(wAttrib & FILE_ATTRIBUTE_ARCHIVE)
pOut[i++] = 'A';
if(wAttrib & FILE_ATTRIBUTE_COMPRESSED)
pOut[i++] = 'C';
pOut[i] = 0x00;
}
return wAttrib;
}
/*************************************************************************
* ILFreeaPidl
*
* frees an aPidl struct
*/
void _ILFreeaPidl(LPITEMIDLIST * apidl, UINT cidl)
{
UINT i;
if (apidl)
{
for (i = 0; i < cidl; i++)
SHFree(apidl[i]);
SHFree(apidl);
}
}
/*************************************************************************
* ILCopyaPidl
*
* copies an aPidl struct
*/
LPITEMIDLIST* _ILCopyaPidl(const LPCITEMIDLIST * apidlsrc, UINT cidl)
{
UINT i;
LPITEMIDLIST *apidldest;
if (!apidlsrc)
return NULL;
apidldest = SHAlloc(cidl * sizeof(LPITEMIDLIST));
for (i = 0; i < cidl; i++)
apidldest[i] = ILClone(apidlsrc[i]);
return apidldest;
}
/*************************************************************************
* _ILCopyCidaToaPidl
*
* creates aPidl from CIDA
*/
LPITEMIDLIST* _ILCopyCidaToaPidl(LPITEMIDLIST* pidl, const CIDA * cida)
{
UINT i;
LPITEMIDLIST *dst;
dst = SHAlloc(cida->cidl * sizeof(LPITEMIDLIST));
if (!dst)
return NULL;
if (pidl)
*pidl = ILClone((LPCITEMIDLIST)(&((const BYTE*)cida)[cida->aoffset[0]]));
for (i = 0; i < cida->cidl; i++)
dst[i] = ILClone((LPCITEMIDLIST)(&((const BYTE*)cida)[cida->aoffset[i + 1]]));
return dst;
}
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