ReceiveTempSMS
/
Sweden-Number
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
Sweden-Number/dlls/shell32/enumidlist.c

358 lines
10 KiB
C
Raw Blame History

/*
* IEnumIDList
*
* Copyright 1998 Juergen Schmied <juergen.schmied@metronet.de>
*/
#include <stdlib.h>
#include <string.h>
#include "debug.h"
#include "wine/obj_base.h"
#include "winerror.h"
#include "pidl.h"
#include "shlguid.h"
#include "shell32_main.h"
/* IEnumIDList Implementation */
static HRESULT WINAPI IEnumIDList_QueryInterface(LPENUMIDLIST,REFIID,LPVOID*);
static ULONG WINAPI IEnumIDList_AddRef(LPENUMIDLIST);
static ULONG WINAPI IEnumIDList_Release(LPENUMIDLIST);
static HRESULT WINAPI IEnumIDList_Next(LPENUMIDLIST,ULONG,LPITEMIDLIST*,ULONG*);
static HRESULT WINAPI IEnumIDList_Skip(LPENUMIDLIST,ULONG);
static HRESULT WINAPI IEnumIDList_Reset(LPENUMIDLIST);
static HRESULT WINAPI IEnumIDList_Clone(LPENUMIDLIST,LPENUMIDLIST*);
static BOOL WINAPI IEnumIDList_CreateEnumList(LPENUMIDLIST,LPCSTR, DWORD);
static BOOL WINAPI IEnumIDList_AddToEnumList(LPENUMIDLIST,LPITEMIDLIST);
static BOOL WINAPI IEnumIDList_DeleteList(LPENUMIDLIST);
/**************************************************************************
* IEnumIDList_VTable
*/
static IEnumIDList_VTable eidlvt =
{ IEnumIDList_QueryInterface,
IEnumIDList_AddRef,
IEnumIDList_Release,
IEnumIDList_Next,
IEnumIDList_Skip,
IEnumIDList_Reset,
IEnumIDList_Clone,
IEnumIDList_CreateEnumList,
IEnumIDList_AddToEnumList,
IEnumIDList_DeleteList
};
/**************************************************************************
* IEnumIDList_Constructor
*/
LPENUMIDLIST IEnumIDList_Constructor( LPCSTR lpszPath, DWORD dwFlags)
{ LPENUMIDLIST lpeidl;
lpeidl = (LPENUMIDLIST)HeapAlloc(GetProcessHeap(),0,sizeof(IEnumIDList));
if (! lpeidl)
return NULL;
lpeidl->ref = 1;
lpeidl->lpvtbl = &eidlvt;
lpeidl->mpFirst=NULL;
lpeidl->mpLast=NULL;
lpeidl->mpCurrent=NULL;
TRACE(shell,"(%p)->(%s flags=0x%08lx)\n",lpeidl,debugstr_a(lpszPath),dwFlags);
if(!IEnumIDList_CreateEnumList(lpeidl, lpszPath, dwFlags))
{ if (lpeidl)
{ HeapFree(GetProcessHeap(),0,lpeidl);
}
return NULL;
}
TRACE(shell,"-- (%p)->()\n",lpeidl);
shell32_ObjCount++;
return lpeidl;
}
/**************************************************************************
* EnumIDList_QueryInterface
*/
static HRESULT WINAPI IEnumIDList_QueryInterface(
LPENUMIDLIST this, REFIID riid, LPVOID *ppvObj)
{ char xriid[50];
WINE_StringFromCLSID((LPCLSID)riid,xriid);
TRACE(shell,"(%p)->(\n\tIID:\t%s,%p)\n",this,xriid,ppvObj);
*ppvObj = NULL;
if(IsEqualIID(riid, &IID_IUnknown)) /*IUnknown*/
{ *ppvObj = this;
}
else if(IsEqualIID(riid, &IID_IEnumIDList)) /*IEnumIDList*/
{ *ppvObj = (IEnumIDList*)this;
}
if(*ppvObj)
{ (*(LPENUMIDLIST*)ppvObj)->lpvtbl->fnAddRef(this);
TRACE(shell,"-- Interface: (%p)->(%p)\n",ppvObj,*ppvObj);
return S_OK;
}
TRACE(shell,"-- Interface: E_NOINTERFACE\n");
return E_NOINTERFACE;
}
/******************************************************************************
* IEnumIDList_AddRef
*/
static ULONG WINAPI IEnumIDList_AddRef(LPENUMIDLIST this)
{ TRACE(shell,"(%p)->(%lu)\n",this,this->ref);
shell32_ObjCount++;
return ++(this->ref);
}
/******************************************************************************
* IEnumIDList_Release
*/
static ULONG WINAPI IEnumIDList_Release(LPENUMIDLIST this)
{ TRACE(shell,"(%p)->(%lu)\n",this,this->ref);
shell32_ObjCount--;
if (!--(this->ref))
{ TRACE(shell," destroying IEnumIDList(%p)\n",this);
IEnumIDList_DeleteList(this);
HeapFree(GetProcessHeap(),0,this);
return 0;
}
return this->ref;
}
/**************************************************************************
* IEnumIDList_Next
*/
static HRESULT WINAPI IEnumIDList_Next(
LPENUMIDLIST this,ULONG celt,LPITEMIDLIST * rgelt,ULONG *pceltFetched)
{ ULONG i;
HRESULT hr = S_OK;
LPITEMIDLIST temp;
TRACE(shell,"(%p)->(%ld,%p, %p)\n",this,celt,rgelt,pceltFetched);
/* It is valid to leave pceltFetched NULL when celt is 1. Some of explorer's
* subsystems actually use it (and so may a third party browser)
*/
if(pceltFetched)
*pceltFetched = 0;
*rgelt=0;
if(celt > 1 && !pceltFetched)
{ return E_INVALIDARG;
}
for(i = 0; i < celt; i++)
{ if(!(this->mpCurrent))
{ hr = S_FALSE;
break;
}
temp = ILClone(this->mpCurrent->pidl);
rgelt[i] = temp;
this->mpCurrent = this->mpCurrent->pNext;
}
if(pceltFetched)
{ *pceltFetched = i;
}
return hr;
}
/**************************************************************************
* IEnumIDList_Skip
*/
static HRESULT WINAPI IEnumIDList_Skip(
LPENUMIDLIST this,ULONG celt)
{ DWORD dwIndex;
HRESULT hr = S_OK;
TRACE(shell,"(%p)->(%lu)\n",this,celt);
for(dwIndex = 0; dwIndex < celt; dwIndex++)
{ if(!this->mpCurrent)
{ hr = S_FALSE;
break;
}
this->mpCurrent = this->mpCurrent->pNext;
}
return hr;
}
/**************************************************************************
* IEnumIDList_Reset
*/
static HRESULT WINAPI IEnumIDList_Reset(LPENUMIDLIST this)
{ TRACE(shell,"(%p)\n",this);
this->mpCurrent = this->mpFirst;
return S_OK;
}
/**************************************************************************
* IEnumIDList_Clone
*/
static HRESULT WINAPI IEnumIDList_Clone(
LPENUMIDLIST this,LPENUMIDLIST * ppenum)
{ TRACE(shell,"(%p)->() to (%p)->() E_NOTIMPL\n",this,ppenum);
return E_NOTIMPL;
}
/**************************************************************************
* EnumIDList_CreateEnumList()
* fixme: devices not handled
* fixme: add wildcards to path
*/
static BOOL WINAPI IEnumIDList_CreateEnumList(LPENUMIDLIST this, LPCSTR lpszPath, DWORD dwFlags)
{ LPITEMIDLIST pidl=NULL;
LPPIDLDATA pData=NULL;
WIN32_FIND_DATAA stffile;
HANDLE hFile;
DWORD dwDrivemap;
CHAR szDriveName[4];
CHAR szPath[MAX_PATH];
TRACE(shell,"(%p)->(path=%s flags=0x%08lx) \n",this,debugstr_a(lpszPath),dwFlags);
if (lpszPath && lpszPath[0]!='\0')
{ strcpy(szPath, lpszPath);
PathAddBackslashA(szPath);
strcat(szPath,"*.*");
}
/*enumerate the folders*/
if(dwFlags & SHCONTF_FOLDERS)
{ /* special case - we can't enumerate the Desktop level Objects (MyComputer,Nethood...
so we need to fake an enumeration of those.*/
if(!lpszPath)
{ TRACE (shell,"-- (%p)-> enumerate SHCONTF_FOLDERS (special) items\n",this);
/*create the pidl for this item */
pidl = _ILCreateMyComputer();
if(pidl)
{ if(!IEnumIDList_AddToEnumList(this, pidl))
return FALSE;
}
}
else if (lpszPath[0]=='\0') /* enumerate the drives*/
{ TRACE (shell,"-- (%p)-> enumerate SHCONTF_FOLDERS (drives)\n",this);
dwDrivemap = GetLogicalDrives();
strcpy (szDriveName,"A:\\");
while (szDriveName[0]<='Z')
{ if(dwDrivemap & 0x00000001L)
{ pidl = _ILCreateDrive(szDriveName);
if(pidl)
{ if(!IEnumIDList_AddToEnumList(this, pidl))
return FALSE;
}
}
szDriveName[0]++;
dwDrivemap = dwDrivemap >> 1;
}
}
else
{ TRACE (shell,"-- (%p)-> enumerate SHCONTF_FOLDERS of %s\n",this,debugstr_a(szPath));
hFile = FindFirstFileA(szPath,&stffile);
if ( hFile != INVALID_HANDLE_VALUE )
{ do
{ if ( (stffile.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) && strcmp (stffile.cFileName, ".") && strcmp (stffile.cFileName, ".."))
{ pidl = _ILCreateFolder( stffile.cAlternateFileName, stffile.cFileName);
if(pidl)
{ pData = _ILGetDataPointer(pidl);
FileTimeToDosDateTime(&stffile.ftLastWriteTime,&pData->u.folder.uFileDate,&pData->u.folder.uFileTime);
pData->u.folder.dwFileSize = stffile.nFileSizeLow;
pData->u.folder.uFileAttribs=stffile.dwFileAttributes;
if(!IEnumIDList_AddToEnumList(this, pidl))
{ return FALSE;
}
}
else
{ return FALSE;
}
}
} while( FindNextFileA(hFile,&stffile));
FindClose (hFile);
}
}
}
/*enumerate the non-folder items (values) */
if(dwFlags & SHCONTF_NONFOLDERS)
{ if(lpszPath)
{ TRACE (shell,"-- (%p)-> enumerate SHCONTF_NONFOLDERS of %s\n",this,debugstr_a(szPath));
hFile = FindFirstFileA(szPath,&stffile);
if ( hFile != INVALID_HANDLE_VALUE )
{ do
{ if (! (stffile.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) )
{ pidl = _ILCreateValue( stffile.cAlternateFileName, stffile.cFileName);
if(pidl)
{ pData = _ILGetDataPointer(pidl);
FileTimeToDosDateTime(&stffile.ftLastWriteTime,&pData->u.file.uFileDate,&pData->u.file.uFileTime);
pData->u.file.dwFileSize = stffile.nFileSizeLow;
pData->u.file.uFileAttribs=stffile.dwFileAttributes;
if(!IEnumIDList_AddToEnumList(this, pidl))
{ return FALSE;
}
}
else
{ return FALSE;
}
}
} while( FindNextFileA(hFile,&stffile));
FindClose (hFile);
}
}
}
return TRUE;
}
/**************************************************************************
* EnumIDList_AddToEnumList()
*/
static BOOL WINAPI IEnumIDList_AddToEnumList(LPENUMIDLIST this,LPITEMIDLIST pidl)
{ LPENUMLIST pNew;
TRACE(shell,"(%p)->(pidl=%p)\n",this,pidl);
pNew = (LPENUMLIST)SHAlloc(sizeof(ENUMLIST));
if(pNew)
{ /*set the next pointer */
pNew->pNext = NULL;
pNew->pidl = pidl;
/*is this the first item in the list? */
if(!this->mpFirst)
{ this->mpFirst = pNew;
this->mpCurrent = pNew;
}
if(this->mpLast)
{ /*add the new item to the end of the list */
this->mpLast->pNext = pNew;
}
/*update the last item pointer */
this->mpLast = pNew;
TRACE(shell,"-- (%p)->(first=%p, last=%p)\n",this,this->mpFirst,this->mpLast);
return TRUE;
}
return FALSE;
}
/**************************************************************************
* EnumIDList_DeleteList()
*/
static BOOL WINAPI IEnumIDList_DeleteList(LPENUMIDLIST this)
{ LPENUMLIST pDelete;
TRACE(shell,"(%p)->()\n",this);
while(this->mpFirst)
{ pDelete = this->mpFirst;
this->mpFirst = pDelete->pNext;
SHFree(pDelete->pidl);
SHFree(pDelete);
}
this->mpFirst = this->mpLast = this->mpCurrent = NULL;
return TRUE;
}
Reference in New Issue View Git Blame Copy Permalink