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wine/dlls/shell32/pidl.c
Juergen Schmied c835579240 ILLoadFromString implemented.
1999-04-10 16:41:15 +00:00

1280 lines
31 KiB
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/*
* pidl Handling
*
* Copyright 1998 Juergen Schmied
*
* NOTES
* a pidl == NULL means desktop and is legal
*
*/
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include "ole2.h"
#include "debug.h"
#include "shlobj.h"
#include "shell.h"
#include "winerror.h"
#include "winnls.h"
#include "winproc.h"
#include "commctrl.h"
#include "winversion.h"
#include "shell32_main.h"
#include "pidl.h"
void pdump (LPCITEMIDLIST pidl)
{ DWORD type;
CHAR * szData;
CHAR * szShortName;
LPITEMIDLIST pidltemp = pidl;
if (! pidltemp)
{ TRACE(pidl,"-------- pidl = NULL (Root)\n");
return;
}
TRACE(pidl,"-------- pidl=%p \n", pidl);
if (pidltemp->mkid.cb)
{ do
{ type = _ILGetDataPointer(pidltemp)->type;
szData = _ILGetTextPointer(type, _ILGetDataPointer(pidltemp));
szShortName = _ILGetSTextPointer(type, _ILGetDataPointer(pidltemp));
TRACE(pidl,"---- pidl=%p size=%u type=%lx %s, (%s)\n",
pidltemp, pidltemp->mkid.cb,type,debugstr_a(szData), debugstr_a(szShortName));
pidltemp = ILGetNext(pidltemp);
} while (pidltemp->mkid.cb);
return;
}
else
TRACE(pidl,"empty pidl (Desktop)\n");
}
/*************************************************************************
* ILGetDisplayName [SHELL32.15]
*/
BOOL WINAPI ILGetDisplayName(LPCITEMIDLIST pidl,LPSTR path)
{ FIXME(shell,"pidl=%p %p semi-stub\n",pidl,path);
return SHGetPathFromIDListA(pidl, path);
}
/*************************************************************************
* ILFindLastID [SHELL32.16]
*/
LPITEMIDLIST WINAPI ILFindLastID(LPITEMIDLIST pidl)
{ LPITEMIDLIST pidlLast = NULL;
TRACE(pidl,"(pidl=%p)\n",pidl);
if(pidl)
{ while(pidl->mkid.cb)
{ pidlLast = (LPITEMIDLIST)pidl;
pidl = ILGetNext(pidl);
}
}
return pidlLast;
}
/*************************************************************************
* ILRemoveLastID [SHELL32.17]
* NOTES
* Removes the last item
*/
BOOL WINAPI ILRemoveLastID(LPCITEMIDLIST pidl)
{ TRACE(shell,"pidl=%p\n",pidl);
if (!pidl || !pidl->mkid.cb)
return 0;
ILFindLastID(pidl)->mkid.cb = 0;
return 1;
}
/*************************************************************************
* ILClone [SHELL32.18]
*
* NOTES
* dupicate an idlist
*/
LPITEMIDLIST WINAPI ILClone (LPCITEMIDLIST pidl)
{ DWORD len;
LPITEMIDLIST newpidl;
if (!pidl)
return NULL;
len = ILGetSize(pidl);
newpidl = (LPITEMIDLIST)SHAlloc(len);
if (newpidl)
memcpy(newpidl,pidl,len);
TRACE(pidl,"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 newpidl=NULL;
TRACE(pidl,"pidl=%p \n",pidl);
pdump(pidl);
if (pidl)
{ len = pidl->mkid.cb;
newpidl = (LPITEMIDLIST) SHAlloc (len+2);
if (newpidl)
{ memcpy(newpidl,pidl,len);
ILGetNext(newpidl)->mkid.cb = 0x00;
}
}
TRACE(pidl,"-- newpidl=%p\n",newpidl);
return newpidl;
}
/*************************************************************************
* ILLoadFromStream
*
* 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);
if (*ppPidl)
{ SHFree(*ppPidl);
*ppPidl = NULL;
}
IStream_AddRef (pStream);
if (SUCCEEDED(IStream_Read(pStream, (LPVOID)&wLen, 2, &dwBytesRead)))
{ *ppPidl = SHAlloc (wLen);
if (SUCCEEDED(IStream_Read(pStream, *ppPidl , wLen, &dwBytesRead)))
{ ret = S_OK;
}
else
{ SHFree(*ppPidl);
*ppPidl = NULL;
}
}
IStream_Release (pStream);
return ret;
}
/*************************************************************************
* SHILCreateFromPath [SHELL32.28]
*
* NOTES
* wraper for IShellFolder::ParseDisplayName()
*/
HRESULT WINAPI SHILCreateFromPathA (LPSTR path, LPITEMIDLIST * ppidl, DWORD attributes)
{ LPSHELLFOLDER sf;
WCHAR lpszDisplayName[MAX_PATH];
DWORD pchEaten;
HRESULT ret = E_FAIL;
TRACE(shell, "%s %p 0x%08lx\n",path,ppidl,attributes);
LocalToWideChar(lpszDisplayName, path, MAX_PATH);
if (SUCCEEDED (SHGetDesktopFolder(&sf)))
{ ret = sf->lpvtbl->fnParseDisplayName(sf,0, NULL,lpszDisplayName,&pchEaten,ppidl,&attributes);
sf->lpvtbl->fnRelease(sf);
}
return ret;
}
HRESULT WINAPI SHILCreateFromPathW (LPWSTR path, LPITEMIDLIST * ppidl, DWORD attributes)
{ LPSHELLFOLDER sf;
DWORD pchEaten;
HRESULT ret = E_FAIL;
TRACE(shell, "%s %p 0x%08lx\n",debugstr_w(path),ppidl,attributes);
if (SUCCEEDED (SHGetDesktopFolder(&sf)))
{ ret = sf->lpvtbl->fnParseDisplayName(sf,0, NULL, path, &pchEaten, ppidl, &attributes);
sf->lpvtbl->fnRelease(sf);
}
return ret;
}
HRESULT WINAPI SHILCreateFromPathAW (LPVOID path, LPITEMIDLIST * ppidl, DWORD attributes)
{
if ( VERSION_OsIsUnicode())
return SHILCreateFromPathW (path, ppidl, attributes);
return SHILCreateFromPathA (path, ppidl, attributes);
}
/*************************************************************************
* SHCloneSpecialIDList [SHELL32.89]
*
* PARAMETERS
* hwndOwner [in]
* nFolder [in] CSIDL_xxxxx ??
*
* RETURNS
* pidl ??
* NOTES
* exported by ordinal
*/
LPITEMIDLIST WINAPI SHCloneSpecialIDList(HWND hwndOwner,DWORD nFolder,DWORD x3)
{ LPITEMIDLIST ppidl;
WARN(shell,"(hwnd=0x%x,csidl=0x%lx,0x%lx):semi-stub.\n",
hwndOwner,nFolder,x3);
SHGetSpecialFolderLocation(hwndOwner, nFolder, &ppidl);
return ppidl;
}
/*************************************************************************
* ILGlobalClone [SHELL32.97]
*
*/
LPITEMIDLIST WINAPI ILGlobalClone(LPCITEMIDLIST pidl)
{ DWORD len;
LPITEMIDLIST newpidl;
if (!pidl)
return NULL;
len = ILGetSize(pidl);
newpidl = (LPITEMIDLIST)pCOMCTL32_Alloc(len);
if (newpidl)
memcpy(newpidl,pidl,len);
TRACE(pidl,"pidl=%p newpidl=%p\n",pidl, newpidl);
pdump(pidl);
return newpidl;
}
/*************************************************************************
* ILIsEqual [SHELL32.21]
*
*/
BOOL WINAPI ILIsEqual(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
{ LPPIDLDATA ppidldata;
CHAR * szData1;
CHAR * szData2;
LPITEMIDLIST pidltemp1 = pidl1;
LPITEMIDLIST pidltemp2 = pidl2;
TRACE(pidl,"pidl1=%p pidl2=%p\n",pidl1, pidl2);
pdump (pidl1);
pdump (pidl2);
if ( (!pidl1) || (!pidl2) )
{ return FALSE;
}
if (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
{ do
{ ppidldata = _ILGetDataPointer(pidltemp1);
szData1 = _ILGetTextPointer(ppidldata->type, ppidldata);
ppidldata = _ILGetDataPointer(pidltemp2);
szData2 = _ILGetTextPointer(ppidldata->type, ppidldata);
if (strcmp ( szData1, szData2 )!=0 )
return FALSE;
pidltemp1 = ILGetNext(pidltemp1);
pidltemp2 = ILGetNext(pidltemp2);
} while (pidltemp1->mkid.cb && pidltemp2->mkid.cb);
}
if (!pidltemp1->mkid.cb && !pidltemp2->mkid.cb)
{ TRACE(shell, "--- equal\n");
return TRUE;
}
return FALSE;
}
/*************************************************************************
* ILIsParent [SHELL32.23]
*
*/
DWORD WINAPI ILIsParent( DWORD x, DWORD y, DWORD z)
{ FIXME(pidl,"0x%08lx 0x%08lx 0x%08lx stub\n",x,y,z);
return 0;
}
/*************************************************************************
* ILFindChild [SHELL32.24]
*
* NOTES
* Compares elements from pidl1 and pidl2.
* When at least the first element is equal, it gives a pointer
* to the first different element of pidl 2 back.
* Returns 0 if pidl 2 is shorter.
*/
LPITEMIDLIST WINAPI ILFindChild(LPCITEMIDLIST pidl1,LPCITEMIDLIST pidl2)
{ LPPIDLDATA ppidldata;
CHAR * szData1;
CHAR * szData2;
LPITEMIDLIST pidltemp1 = pidl1;
LPITEMIDLIST pidltemp2 = pidl2;
LPITEMIDLIST ret=NULL;
TRACE(pidl,"pidl1=%p pidl2=%p\n",pidl1, pidl2);
pdump (pidl1);
pdump (pidl2);
if ( !pidl1 || !pidl1->mkid.cb) /* pidl 1 is desktop (root) */
{ TRACE(shell, "--- %p\n", pidl2);
return pidl2;
}
if (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
{ do
{ ppidldata = _ILGetDataPointer(pidltemp1);
szData1 = _ILGetTextPointer(ppidldata->type, ppidldata);
ppidldata = _ILGetDataPointer(pidltemp2);
szData2 = _ILGetTextPointer(ppidldata->type, ppidldata);
pidltemp2 = ILGetNext(pidltemp2); /* points behind the pidl2 */
if (strcmp(szData1,szData2) == 0)
{ ret = pidltemp2; /* found equal element */
}
else
{ if (ret) /* different element after equal -> break */
{ ret = NULL;
break;
}
}
pidltemp1 = ILGetNext(pidltemp1);
} while (pidltemp1->mkid.cb && pidltemp2->mkid.cb);
}
if (!pidltemp2->mkid.cb)
{ return NULL; /* complete equal or pidl 2 is shorter */
}
TRACE(shell, "--- %p\n", ret);
return ret; /* pidl 1 is shorter */
}
/*************************************************************************
* ILCombine [SHELL32.25]
*
* NOTES
* Concatenates two complex idlists.
* The pidl is the first one, pidlsub the next one
* Does not destroy the passed in idlists!
*/
LPITEMIDLIST WINAPI ILCombine(LPCITEMIDLIST pidl1,LPCITEMIDLIST pidl2)
{ DWORD len1,len2;
LPITEMIDLIST pidlNew;
TRACE(pidl,"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
*/
LPITEMIDLIST WINAPI SHGetRealIDL(LPSHELLFOLDER lpsf, LPITEMIDLIST pidl, DWORD z)
{ FIXME(pidl,"sf=%p pidl=%p 0x%04lx\n",lpsf,pidl,z);
pdump (pidl);
return 0;
}
/*************************************************************************
* SHLogILFromFSIL [SHELL32.95]
*
* NOTES
*/
LPITEMIDLIST WINAPI SHLogILFromFSIL(LPITEMIDLIST pidl)
{ FIXME(pidl,"(pidl=%p)\n",pidl);
pdump(pidl);
return 0;
}
/*************************************************************************
* ILGetSize [SHELL32.152]
* gets the byte size of an idlist including zero terminator (pidl)
*
* PARAMETERS
* pidl ITEMIDLIST
*
* RETURNS
* size of pidl
*
* NOTES
* exported by ordinal
*/
DWORD WINAPI ILGetSize(LPITEMIDLIST pidl)
{ LPSHITEMID si = &(pidl->mkid);
DWORD len=0;
if (pidl)
{ while (si->cb)
{ len += si->cb;
si = (LPSHITEMID)(((LPBYTE)si)+si->cb);
}
len += 2;
}
TRACE(pidl,"pidl=%p size=%lu\n",pidl, len);
return len;
}
/*************************************************************************
* ILGetNext [SHELL32.153]
* gets the next simple pidl of a complex pidl
*
* PARAMETERS
* pidl ITEMIDLIST
*
* RETURNS
* pointer to next element
*
*/
LPITEMIDLIST WINAPI ILGetNext(LPITEMIDLIST pidl)
{ LPITEMIDLIST nextpidl;
/* TRACE(pidl,"(pidl=%p)\n",pidl);*/
if(pidl)
{ nextpidl = (LPITEMIDLIST)(LPBYTE)(((LPBYTE)pidl) + pidl->mkid.cb);
return nextpidl;
}
else
{ return (NULL);
}
}
/*************************************************************************
* ILAppend [SHELL32.154]
*
* NOTES
* Adds the single item to the idlist indicated by pidl.
* if bEnd is 0, adds the item to the front of the list,
* otherwise adds the item to the end. (???)
* Destroys the passed in idlist! (???)
*/
LPITEMIDLIST WINAPI ILAppend(LPITEMIDLIST pidl,LPCITEMIDLIST item,BOOL bEnd)
{ LPITEMIDLIST idlRet;
WARN(pidl,"(pidl=%p,pidl=%p,%08u)semi-stub\n",pidl,item,bEnd);
pdump (pidl);
pdump (item);
if (_ILIsDesktop(pidl))
{ idlRet = ILClone(item);
if (pidl)
SHFree (pidl);
return idlRet;
}
if (bEnd)
{ idlRet=ILCombine(pidl,item);
}
else
{ idlRet=ILCombine(item,pidl);
}
SHFree(pidl);
return idlRet;
}
/*************************************************************************
* ILFree [SHELL32.155]
*
* NOTES
* free_check_ptr - frees memory (if not NULL)
* allocated by SHMalloc allocator
* exported by ordinal
*/
DWORD WINAPI ILFree(LPITEMIDLIST pidl)
{ TRACE(pidl,"(pidl=0x%08lx)\n",(DWORD)pidl);
if (!pidl)
return FALSE;
return SHFree(pidl);
}
/*************************************************************************
* ILGlobalFree [SHELL32.156]
*
*/
DWORD WINAPI ILGlobalFree( LPITEMIDLIST pidl)
{ TRACE(pidl,"%p\n",pidl);
if (!pidl)
return FALSE;
return pCOMCTL32_Free (pidl);
}
/*************************************************************************
* ILCreateFromPath [SHELL32.157]
*
*/
LPITEMIDLIST WINAPI ILCreateFromPathA (LPSTR path)
{ LPITEMIDLIST pidlnew;
TRACE(shell,"%s\n",path);
if (SUCCEEDED (SHILCreateFromPathA (path, &pidlnew, 0)))
return pidlnew;
return FALSE;
}
LPITEMIDLIST WINAPI ILCreateFromPathW (LPWSTR path)
{ LPITEMIDLIST pidlnew;
TRACE(shell,"%s\n",debugstr_w(path));
if (SUCCEEDED (SHILCreateFromPathW (path, &pidlnew, 0)))
return pidlnew;
return FALSE;
}
LPITEMIDLIST WINAPI ILCreateFromPathAW (LPVOID path)
{
if ( VERSION_OsIsUnicode())
return ILCreateFromPathW (path);
return ILCreateFromPathA (path);
}
/*************************************************************************
* SHSimpleIDListFromPath [SHELL32.162]
*
*/
LPITEMIDLIST WINAPI SHSimpleIDListFromPathAW (LPVOID lpszPath)
{ LPCSTR lpszElement;
char lpszTemp[MAX_PATH];
if (!lpszPath)
return 0;
if ( VERSION_OsIsUnicode())
{ TRACE(pidl,"(path=L%s)\n",debugstr_w((LPWSTR)lpszPath));
WideCharToLocal(lpszTemp, lpszPath, MAX_PATH);
}
else
{ TRACE(pidl,"(path=%s)\n",(LPSTR)lpszPath);
strcpy(lpszTemp, lpszPath);
}
lpszElement = PathFindFilenameA(lpszTemp);
if( GetFileAttributesA(lpszTemp) & FILE_ATTRIBUTE_DIRECTORY )
{ return _ILCreateFolder(NULL, lpszElement); /*FIXME: fill shortname */
}
return _ILCreateValue(NULL, lpszElement); /*FIXME: fill shortname */
}
/*************************************************************************
* SHGetDataFromIDListA [SHELL32.247]
*
*/
HRESULT WINAPI SHGetDataFromIDListA(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, int nFormat, LPVOID dest, int len)
{ TRACE(shell,"sf=%p pidl=%p 0x%04x %p 0x%04x stub\n",psf,pidl,nFormat,dest,len);
if (! psf || !dest )
return E_INVALIDARG;
switch (nFormat)
{ case SHGDFIL_FINDDATA:
{ WIN32_FIND_DATAA * pfd = dest;
STRRET lpName;
CHAR pszPath[MAX_PATH];
HANDLE handle;
if ( len < sizeof (WIN32_FIND_DATAA))
return E_INVALIDARG;
psf->lpvtbl->fnAddRef(psf);
psf->lpvtbl->fnGetDisplayNameOf( psf, pidl, SHGDN_FORPARSING, &lpName);
psf->lpvtbl->fnRelease(psf);
strcpy(pszPath,lpName.u.cStr);
if ((handle = FindFirstFileA ( pszPath, pfd)))
FindClose (handle);
}
break;
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 [SHELL32.247]
*
*/
HRESULT WINAPI SHGetDataFromIDListW(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, int nFormat, LPVOID dest, int len)
{ FIXME(shell,"sf=%p pidl=%p 0x%04x %p 0x%04x stub\n",psf,pidl,nFormat,dest,len);
return SHGetDataFromIDListA( psf, pidl, nFormat, dest, len);
}
/**************************************************************************
* internal functions
*/
/**************************************************************************
* _ILCreateDesktop()
* _ILCreateMyComputer()
* _ILCreateDrive()
* _ILCreateFolder()
* _ILCreateValue()
*/
LPITEMIDLIST WINAPI _ILCreateDesktop()
{ TRACE(pidl,"()\n");
return _ILCreate(PT_DESKTOP, NULL, 0);
}
LPITEMIDLIST WINAPI _ILCreateMyComputer()
{ TRACE(pidl,"()\n");
return _ILCreate(PT_MYCOMP, (void *)"My Computer", strlen ("My Computer")+1);
}
LPITEMIDLIST WINAPI _ILCreateDrive( LPCSTR lpszNew)
{ char sTemp[4];
strncpy (sTemp,lpszNew,4);
sTemp[2]='\\';
sTemp[3]=0x00;
TRACE(pidl,"(%s)\n",sTemp);
return _ILCreate(PT_DRIVE,(LPVOID)&sTemp[0],4);
}
LPITEMIDLIST WINAPI _ILCreateFolder( LPCSTR lpszShortName, LPCSTR lpszName)
{ char buff[MAX_PATH];
char * pbuff = buff;
ULONG len, len1;
TRACE(pidl,"(%s, %s)\n",lpszShortName, lpszName);
len = strlen (lpszName)+1;
memcpy (pbuff, lpszName, len);
pbuff += len;
if (lpszShortName)
{ len1 = strlen (lpszShortName)+1;
memcpy (pbuff, lpszShortName, len1);
}
else
{ len1 = 1;
*pbuff = 0x00;
}
return _ILCreate(PT_FOLDER, (LPVOID)buff, len + len1);
}
LPITEMIDLIST WINAPI _ILCreateValue(LPCSTR lpszShortName, LPCSTR lpszName)
{ char buff[MAX_PATH];
char * pbuff = buff;
ULONG len, len1;
TRACE(pidl,"(%s, %s)\n", lpszShortName, lpszName);
len = strlen (lpszName)+1;
memcpy (pbuff, lpszName, len);
pbuff += len;
if (lpszShortName)
{ len1 = strlen (lpszShortName)+1;
memcpy (pbuff, lpszShortName, len1);
}
else
{ len1 = 1;
*pbuff = 0x00;
}
return _ILCreate(PT_VALUE, (LPVOID)buff, len + len1);
}
/**************************************************************************
* _ILGetDrive()
*
* Gets the text for the drive eg. 'c:\'
*
* RETURNS
* strlen (lpszText)
*/
DWORD WINAPI _ILGetDrive(LPCITEMIDLIST pidl,LPSTR pOut, UINT16 uSize)
{ TRACE(pidl,"(%p,%p,%u)\n",pidl,pOut,uSize);
if(_ILIsMyComputer(pidl))
pidl = ILGetNext(pidl);
if (pidl && _ILIsDrive(pidl))
return _ILGetData(PT_DRIVE, pidl, (LPVOID)pOut, uSize)-1;
return 0;
}
/**************************************************************************
* _ILGetItemText()
* Gets the text for only the first item
*
* RETURNS
* strlen (lpszText)
*/
DWORD WINAPI _ILGetItemText(LPCITEMIDLIST pidl, LPSTR lpszText, UINT16 uSize)
{ DWORD ret = 0;
TRACE(pidl,"(pidl=%p %p %d)\n",pidl,lpszText,uSize);
if (_ILIsMyComputer(pidl))
{ ret = _ILGetData(PT_MYCOMP, pidl, (LPVOID)lpszText, uSize)-1;
}
else if (_ILIsDrive(pidl))
{ ret = _ILGetData(PT_DRIVE, pidl, (LPVOID)lpszText, uSize)-1;
}
else if (_ILIsFolder (pidl))
{ ret = _ILGetData(PT_FOLDER, pidl, (LPVOID)lpszText, uSize)-1;
}
else if (_ILIsValue (pidl))
{ ret = _ILGetData(PT_VALUE, pidl, (LPVOID)lpszText, uSize)-1;
}
TRACE(pidl,"(-- %s)\n",debugstr_a(lpszText));
return ret;
}
/**************************************************************************
* _ILIsDesktop()
* _ILIsDrive()
* _ILIsFolder()
* _ILIsValue()
*/
BOOL WINAPI _ILIsDesktop(LPCITEMIDLIST pidl)
{ TRACE(pidl,"(%p)\n",pidl);
return ( !pidl || (pidl && pidl->mkid.cb == 0x00) );
}
BOOL WINAPI _ILIsMyComputer(LPCITEMIDLIST pidl)
{ LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
TRACE(pidl,"(%p)\n",pidl);
return (pidl && lpPData && PT_MYCOMP == lpPData->type);
}
BOOL WINAPI _ILIsDrive(LPCITEMIDLIST pidl)
{ LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
TRACE(pidl,"(%p)\n",pidl);
return (pidl && lpPData && PT_DRIVE == lpPData->type);
}
BOOL WINAPI _ILIsFolder(LPCITEMIDLIST pidl)
{ LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
TRACE(pidl,"(%p)\n",pidl);
return (pidl && lpPData && PT_FOLDER == lpPData->type);
}
BOOL WINAPI _ILIsValue(LPCITEMIDLIST pidl)
{ LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
TRACE(pidl,"(%p)\n",pidl);
return (pidl && lpPData && PT_VALUE == lpPData->type);
}
/**************************************************************************
* _ILGetFolderText()
* Creates a Path string from a PIDL, filtering out the special Folders and values
* There is no trailing backslash
* When lpszPath is NULL the needed size is returned
*
* RETURNS
* strlen(lpszPath)
*/
DWORD WINAPI _ILGetFolderText(LPCITEMIDLIST pidl,LPSTR lpszPath, DWORD dwSize)
{ LPITEMIDLIST pidlTemp;
LPPIDLDATA pData;
DWORD dwCopied = 0;
LPSTR pText;
TRACE(pidl,"(%p path=%p)\n",pidl, lpszPath);
if(!pidl)
return 0;
if(_ILIsMyComputer(pidl))
{ pidlTemp = ILGetNext(pidl);
TRACE(pidl,"-- skip My Computer\n");
}
else
{ pidlTemp = (LPITEMIDLIST)pidl;
}
if(lpszPath)
*lpszPath = 0;
pData = _ILGetDataPointer(pidlTemp);
while(pidlTemp->mkid.cb && !(PT_VALUE == pData->type))
{
if (!(pText = _ILGetTextPointer(pData->type,pData)))
return 0; /* foreign pidl */
dwCopied += strlen(pText);
pidlTemp = ILGetNext(pidlTemp);
pData = _ILGetDataPointer(pidlTemp);
if (lpszPath)
{ strcat(lpszPath, pText);
if (pidlTemp->mkid.cb /* last element ? */
&& (pText[2] != '\\') /* drive has own '\' */
&& (PT_VALUE != pData->type)) /* next element is value */
{ lpszPath[dwCopied] = '\\';
lpszPath[dwCopied+1] = '\0';
dwCopied++;
}
}
else /* only length */
{ if (pidlTemp->mkid.cb
&& (pText[2] != '\\')
&& (PT_VALUE != pData->type))
dwCopied++; /* backslash between elements */
}
}
TRACE(pidl,"-- (size=%lu path=%s)\n",dwCopied, debugstr_a(lpszPath));
return dwCopied;
}
/**************************************************************************
* _ILGetValueText()
* Gets the text for the last item in the list
*/
DWORD WINAPI _ILGetValueText(LPCITEMIDLIST pidl, LPSTR lpszValue, DWORD dwSize)
{ LPITEMIDLIST pidlTemp=pidl;
CHAR szText[MAX_PATH];
TRACE(pidl,"(pidl=%p %p 0x%08lx)\n",pidl,lpszValue,dwSize);
if(!pidl)
{ return 0;
}
while(pidlTemp->mkid.cb && !_ILIsValue(pidlTemp))
{ pidlTemp = ILGetNext(pidlTemp);
}
if(!pidlTemp->mkid.cb)
{ return 0;
}
_ILGetItemText( pidlTemp, szText, sizeof(szText));
if(!lpszValue)
{ return strlen(szText);
}
strcpy(lpszValue, szText);
TRACE(pidl,"-- (pidl=%p %p=%s 0x%08lx)\n",pidl,lpszValue,lpszValue,dwSize);
return strlen(lpszValue);
}
/**************************************************************************
* _ILGetPidlPath()
* Create a string that includes the Drive name, the folder text and
* the value text.
*
* RETURNS
* strlen(lpszOut)
*/
DWORD WINAPI _ILGetPidlPath( LPCITEMIDLIST pidl, LPSTR lpszOut, DWORD dwOutSize)
{ int len = 0;
LPSTR lpszTemp = lpszOut;
TRACE(pidl,"(%p,%lu)\n",lpszOut,dwOutSize);
if(!lpszOut)
{ return 0;
}
*lpszOut = 0;
len = _ILGetFolderText(pidl, lpszOut, dwOutSize);
lpszOut += len;
strcpy (lpszOut,"\\");
len++; lpszOut++; dwOutSize -= len;
len += _ILGetValueText(pidl, lpszOut, dwOutSize );
/*remove the last backslash if necessary */
if( lpszTemp[len-1]=='\\')
{ lpszTemp[len-1] = 0;
len--;
}
TRACE(pidl,"-- (%p=%s,%u)\n",lpszTemp,lpszTemp,len);
return len;
}
/**************************************************************************
* _ILCreate()
* Creates a new PIDL
* type = PT_DESKTOP | PT_DRIVE | PT_FOLDER | PT_VALUE
* pIn = data
* uInSize = size of data (raw)
*/
LPITEMIDLIST WINAPI _ILCreate(PIDLTYPE type, LPVOID pIn, UINT16 uInSize)
{ LPITEMIDLIST pidlOut=NULL;
UINT16 uSize;
LPITEMIDLIST pidlTemp=NULL;
LPPIDLDATA pData;
LPSTR pszDest;
TRACE(pidl,"(0x%02x %p %i)\n",type,pIn,uInSize);
if ( type == PT_DESKTOP)
{ pidlOut = SHAlloc(2);
pidlOut->mkid.cb=0x0000;
return pidlOut;
}
if (! pIn)
{ return NULL;
}
/* the sizes of: cb(2), pidldata-1(26), szText+1, next cb(2) */
switch (type)
{ case PT_DRIVE:
uSize = 4 + 9;
break;
default:
uSize = 4 + (sizeof(PIDLDATA)) + uInSize;
}
pidlOut = SHAlloc(uSize);
pidlTemp = pidlOut;
if(pidlOut)
{ pidlTemp->mkid.cb = uSize - 2;
pData =_ILGetDataPointer(pidlTemp);
pszDest = _ILGetTextPointer(type, pData);
pData->type = type;
switch(type)
{ case PT_MYCOMP:
memcpy(pszDest, pIn, uInSize);
TRACE(pidl,"- create My Computer: %s\n",debugstr_a(pszDest));
break;
case PT_DRIVE:
memcpy(pszDest, pIn, uInSize);
TRACE(pidl,"- create Drive: %s\n",debugstr_a(pszDest));
break;
case PT_FOLDER:
case PT_VALUE:
memcpy(pszDest, pIn, uInSize);
TRACE(pidl,"- create Value: %s\n",debugstr_a(pszDest));
break;
default:
FIXME(pidl,"-- wrong argument\n");
break;
}
pidlTemp = ILGetNext(pidlTemp);
pidlTemp->mkid.cb = 0x00;
}
TRACE(pidl,"-- (pidl=%p, size=%u)\n",pidlOut,uSize-2);
return pidlOut;
}
/**************************************************************************
* _ILGetData(PIDLTYPE, LPCITEMIDLIST, LPVOID, UINT16)
*
* RETURNS
* length of data (raw)
*/
DWORD WINAPI _ILGetData(PIDLTYPE type, LPCITEMIDLIST pidl, LPVOID pOut, UINT uOutSize)
{ LPPIDLDATA pData;
DWORD dwReturn=0;
LPSTR pszSrc;
TRACE(pidl,"(%x %p %p %x)\n",type,pidl,pOut,uOutSize);
if(!pidl)
{ return 0;
}
*(LPSTR)pOut = 0;
pData = _ILGetDataPointer(pidl);
if ( pData->type != type)
{ ERR(pidl,"-- wrong type\n");
return 0;
}
pszSrc = _ILGetTextPointer(pData->type, pData);
switch(type)
{ case PT_MYCOMP:
if(uOutSize < 1)
return 0;
strncpy((LPSTR)pOut, "My Computer", uOutSize);
dwReturn = strlen((LPSTR)pOut)+1;
break;
case PT_DRIVE:
if(uOutSize < 1)
return 0;
strncpy((LPSTR)pOut, pszSrc, uOutSize);
dwReturn = strlen((LPSTR)pOut)+1;
break;
case PT_FOLDER:
case PT_VALUE:
strncpy((LPSTR)pOut, pszSrc, uOutSize);
dwReturn = strlen((LPSTR)pOut)+1;
break;
default:
ERR(pidl,"-- unknown type\n");
break;
}
TRACE(pidl,"-- (%p=%s 0x%08lx)\n",pOut,(char*)pOut,dwReturn);
return dwReturn;
}
/**************************************************************************
* _ILGetDataPointer()
*/
LPPIDLDATA WINAPI _ILGetDataPointer(LPITEMIDLIST pidl)
{ if(pidl && pidl->mkid.cb != 0x00)
return (LPPIDLDATA)(&pidl->mkid.abID);
return NULL;
}
/**************************************************************************
* _ILGetTextPointer()
* gets a pointer to the long filename string stored in the pidl
*/
LPSTR WINAPI _ILGetTextPointer(PIDLTYPE type, LPPIDLDATA pidldata)
{/* TRACE(pidl,"(type=%x data=%p)\n", type, pidldata);*/
if(!pidldata)
{ return NULL;
}
switch (type)
{ case PT_DRIVE:
return (LPSTR)&(pidldata->u.drive.szDriveName);
case PT_MYCOMP:
case PT_FOLDER:
case PT_VALUE:
return (LPSTR)&(pidldata->u.file.szNames);
}
return NULL;
}
/**************************************************************************
* _ILGetSTextPointer()
* gets a pointer to the long filename string stored in the pidl
*/
LPSTR WINAPI _ILGetSTextPointer(PIDLTYPE type, LPPIDLDATA pidldata)
{/* TRACE(pidl,"(type=%x data=%p)\n", type, pidldata);*/
if(!pidldata)
{ return NULL;
}
switch (type)
{ case PT_MYCOMP:
case PT_DRIVE:
return NULL;
case PT_FOLDER:
case PT_VALUE:
return (LPSTR)(pidldata->u.file.szNames + strlen (pidldata->u.file.szNames) + 1);
}
return NULL;
}
BOOL WINAPI _ILGetFileDate (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
{ LPPIDLDATA pdata =_ILGetDataPointer(pidl);
FILETIME ft;
SYSTEMTIME time;
switch (pdata->type)
{ case PT_DRIVE:
case PT_MYCOMP:
return FALSE;
case PT_FOLDER:
DosDateTimeToFileTime(pdata->u.folder.uFileDate, pdata->u.folder.uFileTime, &ft);
break;
case PT_VALUE:
DosDateTimeToFileTime(pdata->u.file.uFileDate, pdata->u.file.uFileTime, &ft);
break;
default:
return FALSE;
}
FileTimeToSystemTime (&ft, &time);
return GetDateFormatA(LOCALE_USER_DEFAULT,DATE_SHORTDATE,&time, NULL, pOut, uOutSize);
}
BOOL WINAPI _ILGetFileSize (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
{ LPPIDLDATA pdata =_ILGetDataPointer(pidl);
char stemp[20]; /* for filesize */
switch (pdata->type)
{ case PT_DRIVE:
case PT_MYCOMP:
case PT_FOLDER:
return FALSE;
case PT_VALUE:
break;
default:
return FALSE;
}
StrFormatByteSizeA(pdata->u.file.dwFileSize, stemp, 20);
strncpy( pOut, stemp, 20);
return TRUE;
}
BOOL WINAPI _ILGetExtension (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
{ char pTemp[MAX_PATH];
int i;
TRACE(pidl,"pidl=%p\n",pidl);
if ( ! _ILGetValueText(pidl, pTemp, MAX_PATH))
{ return FALSE;
}
for (i=0; pTemp[i]!='.' && pTemp[i];i++);
if (!pTemp[i])
return FALSE;
strncpy(pOut, &pTemp[i], uOutSize);
TRACE(pidl,"%s\n",pOut);
return TRUE;
}
/**************************************************************************
* IDLList "Item ID List List"
*
*/
static UINT WINAPI IDLList_GetState(LPIDLLIST this);
static LPITEMIDLIST WINAPI IDLList_GetElement(LPIDLLIST this, UINT nIndex);
static UINT WINAPI IDLList_GetCount(LPIDLLIST this);
static BOOL WINAPI IDLList_StoreItem(LPIDLLIST this, LPITEMIDLIST pidl);
static BOOL WINAPI IDLList_AddItems(LPIDLLIST this, LPITEMIDLIST *apidl, UINT cidl);
static BOOL WINAPI IDLList_InitList(LPIDLLIST this);
static void WINAPI IDLList_CleanList(LPIDLLIST this);
static IDLList_VTable idllvt =
{ IDLList_GetState,
IDLList_GetElement,
IDLList_GetCount,
IDLList_StoreItem,
IDLList_AddItems,
IDLList_InitList,
IDLList_CleanList
};
LPIDLLIST IDLList_Constructor (UINT uStep)
{ LPIDLLIST lpidll;
if (!(lpidll = (LPIDLLIST)HeapAlloc(GetProcessHeap(),0,sizeof(IDLList))))
return NULL;
lpidll->lpvtbl=&idllvt;
lpidll->uStep=uStep;
lpidll->dpa=NULL;
TRACE (shell,"(%p)\n",lpidll);
return lpidll;
}
void IDLList_Destructor(LPIDLLIST this)
{ TRACE (shell,"(%p)\n",this);
IDLList_CleanList(this);
}
static UINT WINAPI IDLList_GetState(LPIDLLIST this)
{ TRACE (shell,"(%p)->(uStep=%u dpa=%p)\n",this, this->uStep, this->dpa);
if (this->uStep == 0)
{ if (this->dpa)
return(State_Init);
return(State_OutOfMem);
}
return(State_UnInit);
}
static LPITEMIDLIST WINAPI IDLList_GetElement(LPIDLLIST this, UINT nIndex)
{ TRACE (shell,"(%p)->(index=%u)\n",this, nIndex);
return((LPITEMIDLIST)pDPA_GetPtr(this->dpa, nIndex));
}
static UINT WINAPI IDLList_GetCount(LPIDLLIST this)
{ TRACE (shell,"(%p)\n",this);
return(IDLList_GetState(this)==State_Init ? DPA_GetPtrCount(this->dpa) : 0);
}
static BOOL WINAPI IDLList_StoreItem(LPIDLLIST this, LPITEMIDLIST pidl)
{ TRACE (shell,"(%p)->(pidl=%p)\n",this, pidl);
if (pidl)
{ if (IDLList_InitList(this) && pDPA_InsertPtr(this->dpa, 0x7fff, (LPSTR)pidl)>=0)
return(TRUE);
ILFree(pidl);
}
IDLList_CleanList(this);
return(FALSE);
}
static BOOL WINAPI IDLList_AddItems(LPIDLLIST this, LPITEMIDLIST *apidl, UINT cidl)
{ INT i;
TRACE (shell,"(%p)->(apidl=%p cidl=%u)\n",this, apidl, cidl);
for (i=0; i<cidl; ++i)
{ if (!IDLList_StoreItem(this, ILClone((LPCITEMIDLIST)apidl[i])))
return(FALSE);
}
return(TRUE);
}
static BOOL WINAPI IDLList_InitList(LPIDLLIST this)
{ TRACE (shell,"(%p)\n",this);
switch (IDLList_GetState(this))
{ case State_Init:
return(TRUE);
case State_OutOfMem:
return(FALSE);
case State_UnInit:
default:
this->dpa = pDPA_Create(this->uStep);
this->uStep = 0;
return(IDLList_InitList(this));
}
}
static void WINAPI IDLList_CleanList(LPIDLLIST this)
{ INT i;
TRACE (shell,"(%p)\n",this);
if (this->uStep != 0)
{ this->dpa = NULL;
this->uStep = 0;
return;
}
if (!this->dpa)
{ return;
}
for (i=DPA_GetPtrCount(this->dpa)-1; i>=0; --i)
{ ILFree(IDLList_GetElement(this,i));
}
pDPA_Destroy(this->dpa);
this->dpa=NULL;
}
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