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shfldr_desktop.c

/*
 *    Virtual Desktop Folder
 *
 *    Copyright 1997            Marcus Meissner
 *    Copyright 1998, 1999, 2002    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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include "config.h"
#include "wine/port.h"

#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <stdio.h>

#define COBJMACROS
#define NONAMELESSUNION
#define NONAMELESSSTRUCT

#include "winerror.h"
#include "windef.h"
#include "winbase.h"
#include "winreg.h"
#include "wingdi.h"
#include "winuser.h"

#include "ole2.h"
#include "shlguid.h"

#include "enumidlist.h"
#include "pidl.h"
#include "undocshell.h"
#include "shell32_main.h"
#include "shresdef.h"
#include "shlwapi.h"
#include "shellfolder.h"
#include "wine/debug.h"
#include "debughlp.h"
#include "shfldr.h"

WINE_DEFAULT_DEBUG_CHANNEL (shell);

/***********************************************************************
*     Desktopfolder implementation
*/

typedef struct {
    IShellFolder2Vtbl *lpVtbl;
    DWORD ref;

    CLSID *pclsid;

    /* both paths are parsible from the desktop */
    LPSTR sPathTarget;        /* complete path to target used for enumeration and ChangeNotify */
    LPITEMIDLIST pidlRoot;    /* absolute pidl */

    int dwAttributes;        /* attributes returned by GetAttributesOf FIXME: use it */

    UINT cfShellIDList;        /* clipboardformat for IDropTarget */
    BOOL fAcceptFmt;        /* flag for pending Drop */
} IGenericSFImpl;

#define _IUnknown_(This)    (IShellFolder*)&(This->lpVtbl)
#define _IShellFolder_(This)    (IShellFolder*)&(This->lpVtbl)

static struct IShellFolder2Vtbl vt_MCFldr_ShellFolder2;

static shvheader DesktopSFHeader[] = {
    {IDS_SHV_COLUMN1, SHCOLSTATE_TYPE_STR | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 15},
    {IDS_SHV_COLUMN2, SHCOLSTATE_TYPE_STR | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 10},
    {IDS_SHV_COLUMN3, SHCOLSTATE_TYPE_STR | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 10},
    {IDS_SHV_COLUMN4, SHCOLSTATE_TYPE_DATE | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 12},
    {IDS_SHV_COLUMN5, SHCOLSTATE_TYPE_STR | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 5}
};

#define DESKTOPSHELLVIEWCOLUMNS 5

/**************************************************************************
 *    ISF_Desktop_Constructor
 */
HRESULT WINAPI ISF_Desktop_Constructor (
                IUnknown * pUnkOuter, REFIID riid, LPVOID * ppv)
{
    IGenericSFImpl *sf;
    char szMyPath[MAX_PATH];

    TRACE ("unkOut=%p %s\n", pUnkOuter, shdebugstr_guid (riid));

    if (!ppv)
        return E_POINTER;
    if (pUnkOuter)
        return CLASS_E_NOAGGREGATION;

    if (!SHGetSpecialFolderPathA (0, szMyPath, CSIDL_DESKTOPDIRECTORY, TRUE))
        return E_UNEXPECTED;

    sf = (IGenericSFImpl *) LocalAlloc (GMEM_ZEROINIT, sizeof (IGenericSFImpl));
    if (!sf)
        return E_OUTOFMEMORY;

    sf->ref = 0;
    sf->lpVtbl = &vt_MCFldr_ShellFolder2;
    sf->pidlRoot = _ILCreateDesktop ();    /* my qualified pidl */
    sf->sPathTarget = SHAlloc (strlen (szMyPath) + 1);
    lstrcpyA (sf->sPathTarget, szMyPath);

    if (!SUCCEEDED (IUnknown_QueryInterface (_IUnknown_ (sf), riid, ppv)))
    {
        IUnknown_Release (_IUnknown_ (sf));
        return E_NOINTERFACE;
    }

    TRACE ("--(%p)\n", sf);
    return S_OK;
}

/**************************************************************************
 *    ISF_Desktop_fnQueryInterface
 *
 * NOTES supports not IPersist/IPersistFolder
 */
static HRESULT WINAPI ISF_Desktop_fnQueryInterface(
                IShellFolder2 * iface, REFIID riid, LPVOID * ppvObj)
{
    IGenericSFImpl *This = (IGenericSFImpl *)iface;

    TRACE ("(%p)->(%s,%p)\n", This, shdebugstr_guid (riid), ppvObj);

    *ppvObj = NULL;

    if (IsEqualIID (riid, &IID_IUnknown) ||
        IsEqualIID (riid, &IID_IShellFolder) ||
        IsEqualIID (riid, &IID_IShellFolder2))
    {
        *ppvObj = This;
    }

    if (*ppvObj)
    {
        IUnknown_AddRef ((IUnknown *) (*ppvObj));
        TRACE ("-- Interface: (%p)->(%p)\n", ppvObj, *ppvObj);
        return S_OK;
    }
    TRACE ("-- Interface: E_NOINTERFACE\n");
    return E_NOINTERFACE;
}

static ULONG WINAPI ISF_Desktop_fnAddRef (IShellFolder2 * iface)
{
    IGenericSFImpl *This = (IGenericSFImpl *)iface;
    ULONG refCount = InterlockedIncrement(&This->ref);

    TRACE ("(%p)->(count=%lu)\n", This, refCount - 1);

    return refCount;
}

static ULONG WINAPI ISF_Desktop_fnRelease (IShellFolder2 * iface)
{
    IGenericSFImpl *This = (IGenericSFImpl *)iface;
    ULONG refCount = InterlockedDecrement(&This->ref);

    TRACE ("(%p)->(count=%lu)\n", This, refCount + 1);

    if (!refCount)
    {
        TRACE ("-- destroying IShellFolder(%p)\n", This);
        if (This->pidlRoot)
            SHFree (This->pidlRoot);
        if (This->sPathTarget)
            SHFree (This->sPathTarget);
        LocalFree ((HLOCAL) This);
        return 0;
    }
    return refCount;
}

/**************************************************************************
 *    ISF_Desktop_fnParseDisplayName
 *
 * NOTES
 *    "::{20D04FE0-3AEA-1069-A2D8-08002B30309D}" and "" binds
 *    to MyComputer
 */
static HRESULT WINAPI ISF_Desktop_fnParseDisplayName (IShellFolder2 * iface,
                HWND hwndOwner, LPBC pbc, LPOLESTR lpszDisplayName,
                DWORD * pchEaten, LPITEMIDLIST * ppidl, DWORD * pdwAttributes)
{
    IGenericSFImpl *This = (IGenericSFImpl *)iface;
    WCHAR szElement[MAX_PATH];
    LPCWSTR szNext = NULL;
    LPITEMIDLIST pidlTemp = NULL;
    HRESULT hr = S_OK;
    CLSID clsid;

    TRACE ("(%p)->(HWND=%p,%p,%p=%s,%p,pidl=%p,%p)\n",
           This, hwndOwner, pbc, lpszDisplayName, debugstr_w(lpszDisplayName),
           pchEaten, ppidl, pdwAttributes);

    if (!lpszDisplayName || !ppidl)
        return E_INVALIDARG;

    *ppidl = 0;

    if (pchEaten)
        *pchEaten = 0;        /* strange but like the original */

    if (lpszDisplayName[0] == ':' && lpszDisplayName[1] == ':')
    {
        szNext = GetNextElementW (lpszDisplayName, szElement, MAX_PATH);
        TRACE ("-- element: %s\n", debugstr_w (szElement));
        SHCLSIDFromStringW (szElement + 2, &clsid);
        pidlTemp = _ILCreateGuid (PT_GUID, &clsid);
    }
    else if (PathGetDriveNumberW (lpszDisplayName) >= 0)
    {
        /* it's a filesystem path with a drive. Let MyComputer parse it */
        pidlTemp = _ILCreateMyComputer ();
        szNext = lpszDisplayName;
    }
    else if (PathIsUNCW(lpszDisplayName))
    {
        pidlTemp = _ILCreateNetwork();
        szNext = lpszDisplayName;
    }
    else if( (pidlTemp = SHELL32_CreatePidlFromBindCtx(pbc, lpszDisplayName)) )
    {
        *ppidl = pidlTemp;
        return S_OK;
    }
    else
    {
        /* it's a filesystem path on the desktop. Let a FSFolder parse it */

        if (*lpszDisplayName)
        {
            WCHAR szPath[MAX_PATH];
            LPWSTR pathPtr;

            /* build a complete path to create a simple pidl */
            MultiByteToWideChar(CP_ACP, 0, This->sPathTarget, -1, szPath,
             sizeof(szPath) / sizeof(szPath[0]));
            pathPtr = PathAddBackslashW(szPath);
            if (pathPtr)
            {
                lstrcpynW(pathPtr, lpszDisplayName,
                          sizeof(szPath)/sizeof(szPath[0]) - (pathPtr - szPath));
                hr = _ILCreateFromPathW(szPath, &pidlTemp);
            }
            else
            {
                /* should never reach here, but for completeness */
                hr = HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER);
            }
        }
        else
            pidlTemp = _ILCreateMyComputer();

        szNext = NULL;
    }

    if (SUCCEEDED(hr) && pidlTemp)
    {
        if (szNext && *szNext)
        {
            hr = SHELL32_ParseNextElement(iface, hwndOwner, pbc,
                    &pidlTemp, (LPOLESTR) szNext, pchEaten, pdwAttributes);
        }
        else
        {
            if (pdwAttributes && *pdwAttributes)
                hr = SHELL32_GetItemAttributes(_IShellFolder_ (This),
                                               pidlTemp, pdwAttributes);
        }
    }

    *ppidl = pidlTemp;

    TRACE ("(%p)->(-- ret=0x%08lx)\n", This, hr);

    return hr;
}

/**************************************************************************
 *  CreateDesktopEnumList()
 */
static const WCHAR Desktop_NameSpaceW[] = { 'S','O','F','T','W','A','R','E',
 '\\','M','i','c','r','o','s','o','f','t','\\','W','i','n','d','o','w','s','\\',
 'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\','E','x','p','l',
 'o','r','e','r','\\','D','e','s','k','t','o','p','\\','N','a','m','e','s','p',
 'a','c','e','\0' };

static BOOL CreateDesktopEnumList(IEnumIDList *list, DWORD dwFlags)
{
    BOOL ret = TRUE;
    WCHAR szPath[MAX_PATH];

    TRACE("(%p)->(flags=0x%08lx) \n",list,dwFlags);

    /* enumerate the root folders */
    if (dwFlags & SHCONTF_FOLDERS)
    {
        HKEY hkey;
        LONG r;

        /* create the pidl for This item */
        ret = AddToEnumList(list, _ILCreateMyComputer());

        r = RegOpenKeyExW(HKEY_LOCAL_MACHINE, Desktop_NameSpaceW,
                          0, KEY_READ, &hkey);
        if (ret && ERROR_SUCCESS == r)
        {
            WCHAR iid[50];
            int i=0;
            BOOL moreKeys = TRUE;

            while (ret && moreKeys)
            {
                DWORD size;

                size = sizeof (iid);
                r = RegEnumKeyExW(hkey, i, iid, &size, 0, NULL, NULL, NULL);
                if (ERROR_SUCCESS == r)
                {
                    ret = AddToEnumList(list, _ILCreateGuidFromStrW(iid));
                    i++;
                }
                else if (ERROR_NO_MORE_ITEMS == r)
                    moreKeys = FALSE;
                else
                    ret = FALSE;
            }
            RegCloseKey(hkey);
        }
    }

    /* enumerate the elements in %windir%\desktop */
    SHGetSpecialFolderPathW(0, szPath, CSIDL_DESKTOPDIRECTORY, FALSE);
    ret = ret && CreateFolderEnumList(list, szPath, dwFlags);

    return ret;
}

/**************************************************************************
 *        ISF_Desktop_fnEnumObjects
 */
static HRESULT WINAPI ISF_Desktop_fnEnumObjects (IShellFolder2 * iface,
                HWND hwndOwner, DWORD dwFlags, LPENUMIDLIST * ppEnumIDList)
{
    IGenericSFImpl *This = (IGenericSFImpl *)iface;

    TRACE ("(%p)->(HWND=%p flags=0x%08lx pplist=%p)\n",
           This, hwndOwner, dwFlags, ppEnumIDList);

    *ppEnumIDList = IEnumIDList_Constructor();
    if (*ppEnumIDList)
        CreateDesktopEnumList(*ppEnumIDList, dwFlags);

    TRACE ("-- (%p)->(new ID List: %p)\n", This, *ppEnumIDList);

    return *ppEnumIDList ? S_OK : E_OUTOFMEMORY;
}

/**************************************************************************
 *        ISF_Desktop_fnBindToObject
 */
static HRESULT WINAPI ISF_Desktop_fnBindToObject (IShellFolder2 * iface,
                LPCITEMIDLIST pidl, LPBC pbcReserved, REFIID riid, LPVOID * ppvOut)
{
    IGenericSFImpl *This = (IGenericSFImpl *)iface;

    TRACE ("(%p)->(pidl=%p,%p,%s,%p)\n",
           This, pidl, pbcReserved, shdebugstr_guid (riid), ppvOut);

    return SHELL32_BindToChild (This->pidlRoot, This->sPathTarget, pidl, riid, ppvOut);
}

/**************************************************************************
 *    ISF_Desktop_fnBindToStorage
 */
static HRESULT WINAPI ISF_Desktop_fnBindToStorage (IShellFolder2 * iface,
                LPCITEMIDLIST pidl, LPBC pbcReserved, REFIID riid, LPVOID * ppvOut)
{
    IGenericSFImpl *This = (IGenericSFImpl *)iface;

    FIXME ("(%p)->(pidl=%p,%p,%s,%p) stub\n",
           This, pidl, pbcReserved, shdebugstr_guid (riid), ppvOut);

    *ppvOut = NULL;
    return E_NOTIMPL;
}

/**************************************************************************
 *     ISF_Desktop_fnCompareIDs
 */
static HRESULT WINAPI ISF_Desktop_fnCompareIDs (IShellFolder2 * iface,
                        LPARAM lParam, LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
{
    IGenericSFImpl *This = (IGenericSFImpl *)iface;
    int nReturn;

    TRACE ("(%p)->(0x%08lx,pidl1=%p,pidl2=%p)\n", This, lParam, pidl1, pidl2);
    nReturn = SHELL32_CompareIDs (_IShellFolder_ (This), lParam, pidl1, pidl2);
    TRACE ("-- %i\n", nReturn);
    return nReturn;
}

/**************************************************************************
 *    ISF_Desktop_fnCreateViewObject
 */
static HRESULT WINAPI ISF_Desktop_fnCreateViewObject (IShellFolder2 * iface,
                              HWND hwndOwner, REFIID riid, LPVOID * ppvOut)
{
    IGenericSFImpl *This = (IGenericSFImpl *)iface;
    LPSHELLVIEW pShellView;
    HRESULT hr = E_INVALIDARG;

    TRACE ("(%p)->(hwnd=%p,%s,%p)\n",
           This, hwndOwner, shdebugstr_guid (riid), ppvOut);

    if (!ppvOut)
        return hr;

    *ppvOut = NULL;

    if (IsEqualIID (riid, &IID_IDropTarget))
    {
        WARN ("IDropTarget not implemented\n");
        hr = E_NOTIMPL;
    }
    else if (IsEqualIID (riid, &IID_IContextMenu))
    {
        WARN ("IContextMenu not implemented\n");
        hr = E_NOTIMPL;
    }
    else if (IsEqualIID (riid, &IID_IShellView))
    {
        pShellView = IShellView_Constructor ((IShellFolder *) iface);
        if (pShellView)
        {
            hr = IShellView_QueryInterface (pShellView, riid, ppvOut);
            IShellView_Release (pShellView);
        }
    }
    TRACE ("-- (%p)->(interface=%p)\n", This, ppvOut);
    return hr;
}

/**************************************************************************
 *  ISF_Desktop_fnGetAttributesOf
 */
static HRESULT WINAPI ISF_Desktop_fnGetAttributesOf (IShellFolder2 * iface,
                UINT cidl, LPCITEMIDLIST * apidl, DWORD * rgfInOut)
{
    IGenericSFImpl *This = (IGenericSFImpl *)iface;
    HRESULT hr = S_OK;

    TRACE ("(%p)->(cidl=%d apidl=%p mask=0x%08lx)\n",
           This, cidl, apidl, *rgfInOut);

    if (!cidl || !apidl || !rgfInOut)
        return E_INVALIDARG;

    if (*rgfInOut == 0)
        *rgfInOut = ~0;

    while (cidl > 0 && *apidl)
    {
        pdump (*apidl);
        SHELL32_GetItemAttributes (_IShellFolder_ (This), *apidl, rgfInOut);
        apidl++;
        cidl--;
    }

    TRACE ("-- result=0x%08lx\n", *rgfInOut);

    return hr;
}

/**************************************************************************
 *    ISF_Desktop_fnGetUIObjectOf
 *
 * PARAMETERS
 *  HWND           hwndOwner, //[in ] Parent window for any output
 *  UINT           cidl,      //[in ] array size
 *  LPCITEMIDLIST* apidl,     //[in ] simple pidl array
 *  REFIID         riid,      //[in ] Requested Interface
 *  UINT*          prgfInOut, //[   ] reserved
 *  LPVOID*        ppvObject) //[out] Resulting Interface
 *
 */
static HRESULT WINAPI ISF_Desktop_fnGetUIObjectOf (IShellFolder2 * iface,
                HWND hwndOwner, UINT cidl, LPCITEMIDLIST * apidl,
                REFIID riid, UINT * prgfInOut, LPVOID * ppvOut)
{
    IGenericSFImpl *This = (IGenericSFImpl *)iface;

    LPITEMIDLIST pidl;
    IUnknown *pObj = NULL;
    HRESULT hr = E_INVALIDARG;

    TRACE ("(%p)->(%p,%u,apidl=%p,%s,%p,%p)\n",
       This, hwndOwner, cidl, apidl, shdebugstr_guid (riid), prgfInOut, ppvOut);

    if (!ppvOut)
        return hr;

    *ppvOut = NULL;

    if (IsEqualIID (riid, &IID_IContextMenu))
    {
        pObj = (LPUNKNOWN) ISvItemCm_Constructor( (IShellFolder *) iface,
                                                  This->pidlRoot, apidl, cidl);
        hr = S_OK;
    }
    else if (IsEqualIID (riid, &IID_IDataObject) && (cidl >= 1))
    {
        pObj = (LPUNKNOWN) IDataObject_Constructor( hwndOwner,
                                                  This->pidlRoot, apidl, cidl);
        hr = S_OK;
    }
    else if (IsEqualIID (riid, &IID_IExtractIconA) && (cidl == 1))
    {
        pidl = ILCombine (This->pidlRoot, apidl[0]);
        pObj = (LPUNKNOWN) IExtractIconA_Constructor (pidl);
        SHFree (pidl);
        hr = S_OK;
    }
    else if (IsEqualIID (riid, &IID_IExtractIconW) && (cidl == 1))
    {
        pidl = ILCombine (This->pidlRoot, apidl[0]);
        pObj = (LPUNKNOWN) IExtractIconW_Constructor (pidl);
        SHFree (pidl);
        hr = S_OK;
    }
    else if (IsEqualIID (riid, &IID_IDropTarget) && (cidl >= 1))
    {
        hr = IShellFolder_QueryInterface (iface,
                                          &IID_IDropTarget, (LPVOID *) & pObj);
    }
    else if ((IsEqualIID(riid,&IID_IShellLinkW) ||
              IsEqualIID(riid,&IID_IShellLinkA)) && (cidl == 1))
    {
        pidl = ILCombine (This->pidlRoot, apidl[0]);
        hr = IShellLink_ConstructFromFile(NULL, riid, pidl, (LPVOID*)&pObj);
        SHFree (pidl);
    }
    else
        hr = E_NOINTERFACE;

    if (SUCCEEDED(hr) && !pObj)
        hr = E_OUTOFMEMORY;

    *ppvOut = pObj;
    TRACE ("(%p)->hr=0x%08lx\n", This, hr);
    return hr;
}

/**************************************************************************
 *    ISF_Desktop_fnGetDisplayNameOf
 *
 * NOTES
 *    special case: pidl = null gives desktop-name back
 */
static HRESULT WINAPI ISF_Desktop_fnGetDisplayNameOf (IShellFolder2 * iface,
                LPCITEMIDLIST pidl, DWORD dwFlags, LPSTRRET strRet)
{
    IGenericSFImpl *This = (IGenericSFImpl *)iface;
    CHAR szPath[MAX_PATH];
    GUID const *clsid;
    HRESULT hr = S_OK;

    *szPath = '\0';

    TRACE ("(%p)->(pidl=%p,0x%08lx,%p)\n", This, pidl, dwFlags, strRet);
    pdump (pidl);

    if (!strRet)
        return E_INVALIDARG;

    if (_ILIsDesktop (pidl))
    {
        if ((GET_SHGDN_RELATION (dwFlags) == SHGDN_NORMAL) &&
            (GET_SHGDN_FOR (dwFlags) == SHGDN_FORPARSING))
        {
            lstrcpyA (szPath, This->sPathTarget);
        }
        else
            HCR_GetClassNameA(&CLSID_ShellDesktop, szPath, MAX_PATH);
    }
    else if (_ILIsPidlSimple (pidl))
    {
        if ((clsid = _ILGetGUIDPointer (pidl)))
        {
            if (GET_SHGDN_FOR (dwFlags) == SHGDN_FORPARSING)
            {
                int bWantsForParsing;

                /*
                 * We can only get a filesystem path from a shellfolder if the
                 *  value WantsFORPARSING in CLSID\\{...}\\shellfolder exists.
                 *
                 * Exception: The MyComputer folder doesn't have this key,
                 *   but any other filesystem backed folder it needs it.
                 */
                if (IsEqualIID (clsid, &CLSID_MyComputer))
                {
                    bWantsForParsing = 1;
                }
                else
                {
                    /* get the "WantsFORPARSING" flag from the registry */
                    static const WCHAR clsidW[] =
                     { 'C','L','S','I','D','\\',0 };
                    static const WCHAR shellfolderW[] =
                     { '\\','s','h','e','l','l','f','o','l','d','e','r',0 };
                    static const WCHAR wantsForParsingW[] =
                     { 'W','a','n','t','s','F','o','r','P','a','r','s','i','n',
                     'g',0 };
                    WCHAR szRegPath[100];
                    LONG r;

                    lstrcpyW (szRegPath, clsidW);
                    SHELL32_GUIDToStringW (clsid, &szRegPath[6]);
                    lstrcatW (szRegPath, shellfolderW);
                    r = SHGetValueW(HKEY_CLASSES_ROOT, szRegPath,
                                    wantsForParsingW, NULL, NULL, NULL);
                    if (r == ERROR_SUCCESS)
                        bWantsForParsing = TRUE;
                    else
                        bWantsForParsing = FALSE;
                }

                if ((GET_SHGDN_RELATION (dwFlags) == SHGDN_NORMAL) &&
                     bWantsForParsing)
                {
                    /*
                     * we need the filesystem path to the destination folder.
                     * Only the folder itself can know it
                     */
                    hr = SHELL32_GetDisplayNameOfChild (iface, pidl, dwFlags,
                                                        szPath, MAX_PATH);
                }
                else
                {
                    /* parsing name like ::{...} */
                    lstrcpyA (szPath, "::");
                    SHELL32_GUIDToStringA (clsid, &szPath[2]);
                }
            }
            else
            {
                /* user friendly name */
                HCR_GetClassNameA (clsid, szPath, MAX_PATH);
            }
        }
        else
        {
            /* file system folder */
            _ILSimpleGetText (pidl, szPath, MAX_PATH);

            if (!_ILIsFolder(pidl))
            SHELL_FS_ProcessDisplayFilename(szPath, dwFlags);
        }
    }
    else
    {
        /* a complex pidl, let the subfolder do the work */
        hr = SHELL32_GetDisplayNameOfChild (iface, pidl, dwFlags, szPath, MAX_PATH);
    }

    if (SUCCEEDED (hr))
    {
        strRet->uType = STRRET_CSTR;
        lstrcpynA (strRet->u.cStr, szPath, MAX_PATH);
    }

    TRACE ("-- (%p)->(%s,0x%08lx)\n", This, szPath, hr);
    return hr;
}

/**************************************************************************
 *  ISF_Desktop_fnSetNameOf
 *  Changes the name of a file object or subfolder, possibly changing its item
 *  identifier in the process.
 *
 * PARAMETERS
 *  HWND          hwndOwner,  //[in ] Owner window for output
 *  LPCITEMIDLIST pidl,       //[in ] simple pidl of item to change
 *  LPCOLESTR     lpszName,   //[in ] the items new display name
 *  DWORD         dwFlags,    //[in ] SHGNO formatting flags
 *  LPITEMIDLIST* ppidlOut)   //[out] simple pidl returned
 */
static HRESULT WINAPI ISF_Desktop_fnSetNameOf (IShellFolder2 * iface,
                HWND hwndOwner, LPCITEMIDLIST pidl,    /* simple pidl */
                LPCOLESTR lpName, DWORD dwFlags, LPITEMIDLIST * pPidlOut)
{
    IGenericSFImpl *This = (IGenericSFImpl *)iface;

    FIXME ("(%p)->(%p,pidl=%p,%s,%lu,%p)\n", This, hwndOwner, pidl,
           debugstr_w (lpName), dwFlags, pPidlOut);

    return E_FAIL;
}

static HRESULT WINAPI ISF_Desktop_fnGetDefaultSearchGUID(IShellFolder2 *iface,
                GUID * pguid)
{
    IGenericSFImpl *This = (IGenericSFImpl *)iface;

    FIXME ("(%p)\n", This);
    return E_NOTIMPL;
}

static HRESULT WINAPI ISF_Desktop_fnEnumSearches (IShellFolder2 *iface,
                IEnumExtraSearch ** ppenum)
{
    IGenericSFImpl *This = (IGenericSFImpl *)iface;
    FIXME ("(%p)\n", This);
    return E_NOTIMPL;
}

static HRESULT WINAPI ISF_Desktop_fnGetDefaultColumn (IShellFolder2 * iface,
                DWORD dwRes, ULONG * pSort, ULONG * pDisplay)
{
    IGenericSFImpl *This = (IGenericSFImpl *)iface;

    TRACE ("(%p)\n", This);

    if (pSort)
        *pSort = 0;
    if (pDisplay)
        *pDisplay = 0;

    return S_OK;
}
static HRESULT WINAPI ISF_Desktop_fnGetDefaultColumnState (
                IShellFolder2 * iface, UINT iColumn, DWORD * pcsFlags)
{
    IGenericSFImpl *This = (IGenericSFImpl *)iface;

    TRACE ("(%p)\n", This);

    if (!pcsFlags || iColumn >= DESKTOPSHELLVIEWCOLUMNS)
    return E_INVALIDARG;

    *pcsFlags = DesktopSFHeader[iColumn].pcsFlags;

    return S_OK;
}

static HRESULT WINAPI ISF_Desktop_fnGetDetailsEx (IShellFolder2 * iface,
                LPCITEMIDLIST pidl, const SHCOLUMNID * pscid, VARIANT * pv)
{
    IGenericSFImpl *This = (IGenericSFImpl *)iface;
    FIXME ("(%p)\n", This);

    return E_NOTIMPL;
}

static HRESULT WINAPI ISF_Desktop_fnGetDetailsOf (IShellFolder2 * iface,
                LPCITEMIDLIST pidl, UINT iColumn, SHELLDETAILS * psd)
{
    IGenericSFImpl *This = (IGenericSFImpl *)iface;

    HRESULT hr = E_FAIL;

    TRACE ("(%p)->(%p %i %p)\n", This, pidl, iColumn, psd);

    if (!psd || iColumn >= DESKTOPSHELLVIEWCOLUMNS)
        return E_INVALIDARG;

    if (!pidl)
    {
        psd->fmt = DesktopSFHeader[iColumn].fmt;
        psd->cxChar = DesktopSFHeader[iColumn].cxChar;
        psd->str.uType = STRRET_CSTR;
        LoadStringA (shell32_hInstance, DesktopSFHeader[iColumn].colnameid,
                     psd->str.u.cStr, MAX_PATH);
        return S_OK;
    }

    /* the data from the pidl */
    switch (iColumn)
    {
    case 0:        /* name */
        hr = IShellFolder_GetDisplayNameOf(iface, pidl,
                   SHGDN_NORMAL | SHGDN_INFOLDER, &psd->str);
        break;
    case 1:        /* size */
        _ILGetFileSize (pidl, psd->str.u.cStr, MAX_PATH);
        break;
    case 2:        /* type */
        _ILGetFileType (pidl, psd->str.u.cStr, MAX_PATH);
        break;
    case 3:        /* date */
        _ILGetFileDate (pidl, psd->str.u.cStr, MAX_PATH);
        break;
    case 4:        /* attributes */
        _ILGetFileAttributes (pidl, psd->str.u.cStr, MAX_PATH);
        break;
    }
    hr = S_OK;
    psd->str.uType = STRRET_CSTR;

    return hr;
}

static HRESULT WINAPI ISF_Desktop_fnMapColumnToSCID (
                IShellFolder2 * iface, UINT column, SHCOLUMNID * pscid)
{
    IGenericSFImpl *This = (IGenericSFImpl *)iface;
    FIXME ("(%p)\n", This);
    return E_NOTIMPL;
}

static IShellFolder2Vtbl vt_MCFldr_ShellFolder2 =
{
    ISF_Desktop_fnQueryInterface,
    ISF_Desktop_fnAddRef,
    ISF_Desktop_fnRelease,
    ISF_Desktop_fnParseDisplayName,
    ISF_Desktop_fnEnumObjects,
    ISF_Desktop_fnBindToObject,
    ISF_Desktop_fnBindToStorage,
    ISF_Desktop_fnCompareIDs,
    ISF_Desktop_fnCreateViewObject,
    ISF_Desktop_fnGetAttributesOf,
    ISF_Desktop_fnGetUIObjectOf,
    ISF_Desktop_fnGetDisplayNameOf,
    ISF_Desktop_fnSetNameOf,
    /* ShellFolder2 */
    ISF_Desktop_fnGetDefaultSearchGUID,
    ISF_Desktop_fnEnumSearches,
    ISF_Desktop_fnGetDefaultColumn,
    ISF_Desktop_fnGetDefaultColumnState,
    ISF_Desktop_fnGetDetailsEx,
    ISF_Desktop_fnGetDetailsOf,
    ISF_Desktop_fnMapColumnToSCID
};

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