518 lines
11 KiB
C
518 lines
11 KiB
C
/*
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* IEnumIDList
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*
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* Copyright 1998 Juergen Schmied <juergen.schmied@metronet.de>
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*/
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#include <stdlib.h>
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#include <string.h>
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#include "debugtools.h"
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#include "winreg.h"
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#include "wine/obj_base.h"
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#include "wine/obj_enumidlist.h"
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#include "wine/undocshell.h"
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#include "winerror.h"
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#include "pidl.h"
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#include "shlguid.h"
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#include "shell32_main.h"
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DEFAULT_DEBUG_CHANNEL(shell)
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typedef struct tagENUMLIST
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{
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struct tagENUMLIST *pNext;
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LPITEMIDLIST pidl;
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} ENUMLIST, *LPENUMLIST;
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typedef struct
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{
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ICOM_VFIELD(IEnumIDList);
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DWORD ref;
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LPENUMLIST mpFirst;
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LPENUMLIST mpLast;
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LPENUMLIST mpCurrent;
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} IEnumIDListImpl;
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static struct ICOM_VTABLE(IEnumIDList) eidlvt;
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/**************************************************************************
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* AddToEnumList()
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*/
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static BOOL AddToEnumList(
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IEnumIDList * iface,
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LPITEMIDLIST pidl)
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{
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ICOM_THIS(IEnumIDListImpl,iface);
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LPENUMLIST pNew;
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TRACE("(%p)->(pidl=%p)\n",This,pidl);
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pNew = (LPENUMLIST)SHAlloc(sizeof(ENUMLIST));
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if(pNew)
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{
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/*set the next pointer */
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pNew->pNext = NULL;
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pNew->pidl = pidl;
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/*is This the first item in the list? */
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if(!This->mpFirst)
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{
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This->mpFirst = pNew;
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This->mpCurrent = pNew;
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}
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if(This->mpLast)
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{
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/*add the new item to the end of the list */
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This->mpLast->pNext = pNew;
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}
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/*update the last item pointer */
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This->mpLast = pNew;
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TRACE("-- (%p)->(first=%p, last=%p)\n",This,This->mpFirst,This->mpLast);
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return TRUE;
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}
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return FALSE;
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}
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/**************************************************************************
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* CreateFolderEnumList()
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*/
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static BOOL CreateFolderEnumList(
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IEnumIDList * iface,
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LPCSTR lpszPath,
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DWORD dwFlags)
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{
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ICOM_THIS(IEnumIDListImpl,iface);
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LPITEMIDLIST pidl=NULL;
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WIN32_FIND_DATAA stffile;
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HANDLE hFile;
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CHAR szPath[MAX_PATH];
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TRACE("(%p)->(path=%s flags=0x%08lx) \n",This,debugstr_a(lpszPath),dwFlags);
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if(!lpszPath || !lpszPath[0]) return FALSE;
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strcpy(szPath, lpszPath);
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PathAddBackslashA(szPath);
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strcat(szPath,"*.*");
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/*enumerate the folders*/
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if(dwFlags & SHCONTF_FOLDERS)
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{
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TRACE("-- (%p)-> enumerate SHCONTF_FOLDERS of %s\n",This,debugstr_a(szPath));
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hFile = FindFirstFileA(szPath,&stffile);
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if ( hFile != INVALID_HANDLE_VALUE )
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{
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do
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{
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if ( (stffile.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) && strcmp (stffile.cFileName, ".") && strcmp (stffile.cFileName, ".."))
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{
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pidl = _ILCreateFolder (&stffile);
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if(pidl && AddToEnumList((IEnumIDList*)This, pidl))
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{
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continue;
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}
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return FALSE;
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}
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} while( FindNextFileA(hFile,&stffile));
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FindClose (hFile);
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}
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}
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/*enumerate the non-folder items (values) */
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if(dwFlags & SHCONTF_NONFOLDERS)
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{
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TRACE("-- (%p)-> enumerate SHCONTF_NONFOLDERS of %s\n",This,debugstr_a(szPath));
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hFile = FindFirstFileA(szPath,&stffile);
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if ( hFile != INVALID_HANDLE_VALUE )
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{
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do
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{
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if (! (stffile.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) )
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{
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pidl = _ILCreateValue(&stffile);
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if(pidl && AddToEnumList((IEnumIDList*)This, pidl))
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{
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continue;
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}
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return FALSE;
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}
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} while( FindNextFileA(hFile,&stffile));
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FindClose (hFile);
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}
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}
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return TRUE;
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}
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/**************************************************************************
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* CreateDesktopEnumList()
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*/
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static BOOL CreateDesktopEnumList(
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IEnumIDList * iface,
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DWORD dwFlags)
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{
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ICOM_THIS(IEnumIDListImpl,iface);
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LPITEMIDLIST pidl=NULL;
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HKEY hkey;
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char szPath[MAX_PATH];
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TRACE("(%p)->(flags=0x%08lx) \n",This,dwFlags);
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/*enumerate the root folders */
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if(dwFlags & SHCONTF_FOLDERS)
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{
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/*create the pidl for This item */
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pidl = _ILCreateMyComputer();
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if(pidl)
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{
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if(!AddToEnumList((IEnumIDList*)This, pidl))
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return FALSE;
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}
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if (! RegOpenKeyExA(HKEY_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\explorer\\desktop\\NameSpace", 0, KEY_READ, &hkey))
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{
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char iid[50];
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int i=0;
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while (1)
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{
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DWORD size = sizeof (iid);
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if (ERROR_SUCCESS!=RegEnumKeyExA(hkey, i, iid, &size, 0, NULL, NULL, NULL))
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break;
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pidl = _ILCreateSpecial(iid);
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if(pidl)
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AddToEnumList((IEnumIDList*)This, pidl);
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i++;
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}
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RegCloseKey(hkey);
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}
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}
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/*enumerate the elements in %windir%\desktop */
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SHGetSpecialFolderPathA(0, szPath, CSIDL_DESKTOPDIRECTORY, FALSE);
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CreateFolderEnumList( (IEnumIDList*)This, szPath, dwFlags);
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return TRUE;
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}
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/**************************************************************************
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* CreateMyCompEnumList()
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*/
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static BOOL CreateMyCompEnumList(
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IEnumIDList * iface,
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DWORD dwFlags)
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{
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ICOM_THIS(IEnumIDListImpl,iface);
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LPITEMIDLIST pidl=NULL;
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DWORD dwDrivemap;
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CHAR szDriveName[4];
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HKEY hkey;
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TRACE("(%p)->(flags=0x%08lx) \n",This,dwFlags);
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/*enumerate the folders*/
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if(dwFlags & SHCONTF_FOLDERS)
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{
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dwDrivemap = GetLogicalDrives();
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strcpy (szDriveName,"A:\\");
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while (szDriveName[0]<='Z')
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{
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if(dwDrivemap & 0x00000001L)
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{
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pidl = _ILCreateDrive(szDriveName);
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if(pidl)
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{
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if(!AddToEnumList((IEnumIDList*)This, pidl))
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return FALSE;
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}
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}
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szDriveName[0]++;
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dwDrivemap = dwDrivemap >> 1;
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}
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TRACE("-- (%p)-> enumerate (mycomputer shell extensions)\n",This);
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if (! RegOpenKeyExA(HKEY_LOCAL_MACHINE, "SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\explorer\\mycomputer\\NameSpace", 0, KEY_READ, &hkey))
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{
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char iid[50];
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int i=0;
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while (1)
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{
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DWORD size = sizeof (iid);
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if (ERROR_SUCCESS!=RegEnumKeyExA(hkey, i, iid, &size, 0, NULL, NULL, NULL))
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break;
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pidl = _ILCreateSpecial(iid);
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if(pidl)
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AddToEnumList((IEnumIDList*)This, pidl);
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i++;
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}
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RegCloseKey(hkey);
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}
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}
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return TRUE;
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}
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/**************************************************************************
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* DeleteList()
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*/
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static BOOL DeleteList(
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IEnumIDList * iface)
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{
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ICOM_THIS(IEnumIDListImpl,iface);
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LPENUMLIST pDelete;
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TRACE("(%p)->()\n",This);
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while(This->mpFirst)
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{ pDelete = This->mpFirst;
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This->mpFirst = pDelete->pNext;
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SHFree(pDelete->pidl);
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SHFree(pDelete);
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}
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This->mpFirst = This->mpLast = This->mpCurrent = NULL;
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return TRUE;
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}
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/**************************************************************************
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* IEnumIDList_Folder_Constructor
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*
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*/
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IEnumIDList * IEnumIDList_Constructor(
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LPCSTR lpszPath,
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DWORD dwFlags,
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DWORD dwKind)
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{
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IEnumIDListImpl* lpeidl;
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BOOL ret = FALSE;
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lpeidl = (IEnumIDListImpl*)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IEnumIDListImpl));
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TRACE("(%p)->(%s flags=0x%08lx kind=0x%08lx)\n",lpeidl,debugstr_a(lpszPath),dwFlags, dwKind);
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if (lpeidl)
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{
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lpeidl->ref = 1;
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ICOM_VTBL(lpeidl) = &eidlvt;
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switch (dwKind)
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{
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case EIDL_DESK:
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ret = CreateDesktopEnumList((IEnumIDList*)lpeidl, dwFlags);
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break;
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case EIDL_MYCOMP:
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ret = CreateMyCompEnumList((IEnumIDList*)lpeidl, dwFlags);
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break;
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case EIDL_FILE:
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ret = CreateFolderEnumList((IEnumIDList*)lpeidl, lpszPath, dwFlags);
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break;
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}
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if(ret)
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{
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shell32_ObjCount++;
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}
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else
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{
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if (lpeidl)
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{
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HeapFree(GetProcessHeap(),0,lpeidl);
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}
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}
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}
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TRACE("-- (%p)->()\n",lpeidl);
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return (IEnumIDList*)lpeidl;
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}
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/**************************************************************************
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* EnumIDList_QueryInterface
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*/
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static HRESULT WINAPI IEnumIDList_fnQueryInterface(
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IEnumIDList * iface,
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REFIID riid,
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LPVOID *ppvObj)
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{
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ICOM_THIS(IEnumIDListImpl,iface);
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TRACE("(%p)->(\n\tIID:\t%s,%p)\n",This,debugstr_guid(riid),ppvObj);
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*ppvObj = NULL;
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if(IsEqualIID(riid, &IID_IUnknown)) /*IUnknown*/
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{ *ppvObj = This;
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}
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else if(IsEqualIID(riid, &IID_IEnumIDList)) /*IEnumIDList*/
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{ *ppvObj = (IEnumIDList*)This;
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}
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if(*ppvObj)
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{ IEnumIDList_AddRef((IEnumIDList*)*ppvObj);
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TRACE("-- Interface: (%p)->(%p)\n",ppvObj,*ppvObj);
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return S_OK;
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}
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TRACE("-- Interface: E_NOINTERFACE\n");
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return E_NOINTERFACE;
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}
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/******************************************************************************
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* IEnumIDList_fnAddRef
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*/
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static ULONG WINAPI IEnumIDList_fnAddRef(
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IEnumIDList * iface)
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{
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ICOM_THIS(IEnumIDListImpl,iface);
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TRACE("(%p)->(%lu)\n",This,This->ref);
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shell32_ObjCount++;
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return ++(This->ref);
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}
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/******************************************************************************
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* IEnumIDList_fnRelease
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*/
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static ULONG WINAPI IEnumIDList_fnRelease(
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IEnumIDList * iface)
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{
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ICOM_THIS(IEnumIDListImpl,iface);
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TRACE("(%p)->(%lu)\n",This,This->ref);
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shell32_ObjCount--;
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if (!--(This->ref))
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{ TRACE(" destroying IEnumIDList(%p)\n",This);
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DeleteList((IEnumIDList*)This);
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HeapFree(GetProcessHeap(),0,This);
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return 0;
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}
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return This->ref;
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}
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/**************************************************************************
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* IEnumIDList_fnNext
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*/
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static HRESULT WINAPI IEnumIDList_fnNext(
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IEnumIDList * iface,
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ULONG celt,
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LPITEMIDLIST * rgelt,
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ULONG *pceltFetched)
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{
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ICOM_THIS(IEnumIDListImpl,iface);
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ULONG i;
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HRESULT hr = S_OK;
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LPITEMIDLIST temp;
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TRACE("(%p)->(%ld,%p, %p)\n",This,celt,rgelt,pceltFetched);
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/* It is valid to leave pceltFetched NULL when celt is 1. Some of explorer's
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* subsystems actually use it (and so may a third party browser)
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*/
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if(pceltFetched)
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*pceltFetched = 0;
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*rgelt=0;
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if(celt > 1 && !pceltFetched)
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{ return E_INVALIDARG;
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}
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for(i = 0; i < celt; i++)
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{ if(!(This->mpCurrent))
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{ hr = S_FALSE;
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break;
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}
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temp = ILClone(This->mpCurrent->pidl);
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rgelt[i] = temp;
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This->mpCurrent = This->mpCurrent->pNext;
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}
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if(pceltFetched)
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{ *pceltFetched = i;
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}
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return hr;
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}
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/**************************************************************************
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* IEnumIDList_fnSkip
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*/
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static HRESULT WINAPI IEnumIDList_fnSkip(
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IEnumIDList * iface,ULONG celt)
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{
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ICOM_THIS(IEnumIDListImpl,iface);
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DWORD dwIndex;
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HRESULT hr = S_OK;
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TRACE("(%p)->(%lu)\n",This,celt);
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for(dwIndex = 0; dwIndex < celt; dwIndex++)
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{ if(!This->mpCurrent)
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{ hr = S_FALSE;
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break;
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}
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This->mpCurrent = This->mpCurrent->pNext;
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}
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return hr;
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}
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/**************************************************************************
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* IEnumIDList_fnReset
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*/
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static HRESULT WINAPI IEnumIDList_fnReset(
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IEnumIDList * iface)
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{
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ICOM_THIS(IEnumIDListImpl,iface);
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TRACE("(%p)\n",This);
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This->mpCurrent = This->mpFirst;
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return S_OK;
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}
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/**************************************************************************
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* IEnumIDList_fnClone
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*/
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static HRESULT WINAPI IEnumIDList_fnClone(
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IEnumIDList * iface,LPENUMIDLIST * ppenum)
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{
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ICOM_THIS(IEnumIDListImpl,iface);
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TRACE("(%p)->() to (%p)->() E_NOTIMPL\n",This,ppenum);
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return E_NOTIMPL;
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}
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/**************************************************************************
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* IEnumIDList_fnVTable
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*/
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static ICOM_VTABLE (IEnumIDList) eidlvt =
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{
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ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
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IEnumIDList_fnQueryInterface,
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IEnumIDList_fnAddRef,
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IEnumIDList_fnRelease,
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IEnumIDList_fnNext,
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IEnumIDList_fnSkip,
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IEnumIDList_fnReset,
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IEnumIDList_fnClone,
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};
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