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Sweden-Number/dlls/shell32/shellole.c

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/*
* handling of SHELL32.DLL OLE-Objects
*
* Copyright 1997 Marcus Meissner
* Copyright 1998 Juergen Schmied <juergen.schmied@metronet.de>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#define COBJMACROS
#include "windef.h"
#include "winbase.h"
#include "shellapi.h"
#include "wingdi.h"
#include "winuser.h"
#include "shlobj.h"
#include "shlguid.h"
#include "winreg.h"
#include "winerror.h"
#include "undocshell.h"
#include "wine/unicode.h"
#include "shell32_main.h"
#include "wine/debug.h"
#include "shlwapi.h"
#include "debughlp.h"
WINE_DEFAULT_DEBUG_CHANNEL(shell);
extern INT WINAPI SHStringFromGUIDW(REFGUID guid, LPWSTR lpszDest, INT cchMax); /* shlwapi.24 */
/**************************************************************************
* Default ClassFactory types
*/
typedef HRESULT (CALLBACK *LPFNCREATEINSTANCE)(IUnknown* pUnkOuter, REFIID riid, LPVOID* ppvObject);
static IClassFactory * IDefClF_fnConstructor(LPFNCREATEINSTANCE lpfnCI, PLONG pcRefDll, REFIID riidInst);
/* this table contains all CLSID's of shell32 objects */
static const struct {
REFIID riid;
LPFNCREATEINSTANCE lpfnCI;
} InterfaceTable[] = {
{&CLSID_ShellFSFolder, IFSFolder_Constructor},
{&CLSID_MyComputer, ISF_MyComputer_Constructor},
{&CLSID_NetworkPlaces, ISF_NetworkPlaces_Constructor},
{&CLSID_ShellDesktop, ISF_Desktop_Constructor},
{&CLSID_ShellItem, IShellItem_Constructor},
{&CLSID_ShellLink, IShellLink_Constructor},
{&CLSID_DragDropHelper, IDropTargetHelper_Constructor},
{&CLSID_ControlPanel, IControlPanel_Constructor},
{&CLSID_AutoComplete, IAutoComplete_Constructor},
{&CLSID_UnixFolder, UnixFolder_Constructor},
{&CLSID_UnixDosFolder, UnixDosFolder_Constructor},
{&CLSID_FolderShortcut, FolderShortcut_Constructor},
{&CLSID_MyDocuments, MyDocuments_Constructor},
{&CLSID_RecycleBin, RecycleBin_Constructor},
{NULL,NULL}
};
/*************************************************************************
* SHCoCreateInstance [SHELL32.102]
*
* Equivalent to CoCreateInstance. Under Windows 9x this function could sometimes
* use the shell32 built-in "mini-COM" without the need to load ole32.dll - see
* SHLoadOLE for details.
*
* Under wine if a "LoadWithoutCOM" value is present or the object resides in
* shell32.dll the function will load the object manually without the help of ole32
*
* NOTES
* exported by ordinal
*
* SEE ALSO
* CoCreateInstace, SHLoadOLE
*/
HRESULT WINAPI SHCoCreateInstance(
LPCWSTR aclsid,
const CLSID *clsid,
LPUNKNOWN pUnkOuter,
REFIID refiid,
LPVOID *ppv)
{
DWORD hres;
IID iid;
const CLSID * myclsid = clsid;
WCHAR sKeyName[MAX_PATH];
const WCHAR sCLSID[7] = {'C','L','S','I','D','\\','\0'};
WCHAR sClassID[60];
const WCHAR sInProcServer32[16] ={'\\','I','n','p','r','o','c','S','e','r','v','e','r','3','2','\0'};
const WCHAR sLoadWithoutCOM[15] ={'L','o','a','d','W','i','t','h','o','u','t','C','O','M','\0'};
WCHAR sDllPath[MAX_PATH];
HKEY hKey = 0;
DWORD dwSize;
IClassFactory * pcf = NULL;
if(!ppv) return E_POINTER;
*ppv=NULL;
/* if the clsid is a string, convert it */
if (!clsid)
{
if (!aclsid) return REGDB_E_CLASSNOTREG;
SHCLSIDFromStringW(aclsid, &iid);
myclsid = &iid;
}
TRACE("(%p,%s,unk:%p,%s,%p)\n",
aclsid,shdebugstr_guid(myclsid),pUnkOuter,shdebugstr_guid(refiid),ppv);
if (SUCCEEDED(DllGetClassObject(myclsid, &IID_IClassFactory,(LPVOID*)&pcf)))
{
hres = IClassFactory_CreateInstance(pcf, pUnkOuter, refiid, ppv);
IClassFactory_Release(pcf);
goto end;
}
/* we look up the dll path in the registry */
SHStringFromGUIDW(myclsid, sClassID, sizeof(sClassID)/sizeof(WCHAR));
lstrcpyW(sKeyName, sCLSID);
lstrcatW(sKeyName, sClassID);
lstrcatW(sKeyName, sInProcServer32);
if (RegOpenKeyExW(HKEY_CLASSES_ROOT, sKeyName, 0, KEY_READ, &hKey))
return E_ACCESSDENIED;
/* if a special registry key is set, we load a shell extension without help of OLE32 */
if (!SHQueryValueExW(hKey, sLoadWithoutCOM, 0, 0, 0, 0))
{
/* load an external dll without ole32 */
HANDLE hLibrary;
typedef HRESULT (CALLBACK *DllGetClassObjectFunc)(REFCLSID clsid, REFIID iid, LPVOID *ppv);
DllGetClassObjectFunc DllGetClassObject;
dwSize = sizeof(sDllPath);
SHQueryValueExW(hKey, NULL, 0,0, sDllPath, &dwSize );
if ((hLibrary = LoadLibraryExW(sDllPath, 0, LOAD_WITH_ALTERED_SEARCH_PATH)) == 0) {
ERR("couldn't load InprocServer32 dll %s\n", debugstr_w(sDllPath));
hres = E_ACCESSDENIED;
goto end;
} else if (!(DllGetClassObject = (DllGetClassObjectFunc)GetProcAddress(hLibrary, "DllGetClassObject"))) {
ERR("couldn't find function DllGetClassObject in %s\n", debugstr_w(sDllPath));
FreeLibrary( hLibrary );
hres = E_ACCESSDENIED;
goto end;
} else if (FAILED(hres = DllGetClassObject(myclsid, &IID_IClassFactory, (LPVOID*)&pcf))) {
TRACE("GetClassObject failed 0x%08x\n", hres);
goto end;
}
hres = IClassFactory_CreateInstance(pcf, pUnkOuter, refiid, ppv);
IClassFactory_Release(pcf);
} else {
/* load an external dll in the usual way */
hres = CoCreateInstance(myclsid, pUnkOuter, CLSCTX_INPROC_SERVER, refiid, ppv);
}
end:
if (hKey) RegCloseKey(hKey);
if(hres!=S_OK)
{
ERR("failed (0x%08x) to create CLSID:%s IID:%s\n",
hres, shdebugstr_guid(myclsid), shdebugstr_guid(refiid));
ERR("class not found in registry\n");
}
TRACE("-- instance: %p\n",*ppv);
return hres;
}
/*************************************************************************
* DllGetClassObject [SHELL32.@]
* SHDllGetClassObject [SHELL32.128]
*/
HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv)
{
HRESULT hres = E_OUTOFMEMORY;
IClassFactory * pcf = NULL;
int i;
TRACE("CLSID:%s,IID:%s\n",shdebugstr_guid(rclsid),shdebugstr_guid(iid));
if (!ppv) return E_INVALIDARG;
*ppv = NULL;
/* search our internal interface table */
for(i=0;InterfaceTable[i].riid;i++) {
if(IsEqualIID(InterfaceTable[i].riid, rclsid)) {
TRACE("index[%u]\n", i);
pcf = IDefClF_fnConstructor(InterfaceTable[i].lpfnCI, NULL, NULL);
}
}
if (!pcf) {
FIXME("failed for CLSID=%s\n", shdebugstr_guid(rclsid));
return CLASS_E_CLASSNOTAVAILABLE;
}
hres = IClassFactory_QueryInterface(pcf, iid, ppv);
IClassFactory_Release(pcf);
TRACE("-- pointer to class factory: %p\n",*ppv);
return hres;
}
/*************************************************************************
* SHCLSIDFromString [SHELL32.147]
*
* Under Windows 9x this was an ANSI version of CLSIDFromString. It also allowed
* to avoid dependency on ole32.dll (see SHLoadOLE for details).
*
* Under Windows NT/2000/XP this is equivalent to CLSIDFromString
*
* NOTES
* exported by ordinal
*
* SEE ALSO
* CLSIDFromString, SHLoadOLE
*/
DWORD WINAPI SHCLSIDFromStringA (LPCSTR clsid, CLSID *id)
{
WCHAR buffer[40];
TRACE("(%p(%s) %p)\n", clsid, clsid, id);
if (!MultiByteToWideChar( CP_ACP, 0, clsid, -1, buffer, sizeof(buffer)/sizeof(WCHAR) ))
return CO_E_CLASSSTRING;
return CLSIDFromString( buffer, id );
}
DWORD WINAPI SHCLSIDFromStringW (LPCWSTR clsid, CLSID *id)
{
TRACE("(%p(%s) %p)\n", clsid, debugstr_w(clsid), id);
return CLSIDFromString((LPWSTR)clsid, id);
}
DWORD WINAPI SHCLSIDFromStringAW (LPCVOID clsid, CLSID *id)
{
if (SHELL_OsIsUnicode())
return SHCLSIDFromStringW (clsid, id);
return SHCLSIDFromStringA (clsid, id);
}
/*************************************************************************
* SHGetMalloc [SHELL32.@]
*
* Equivalent to CoGetMalloc(MEMCTX_TASK, ...). Under Windows 9x this function
* could use the shell32 built-in "mini-COM" without the need to load ole32.dll -
* see SHLoadOLE for details.
*
* PARAMS
* lpmal [O] Destination for IMalloc interface.
*
* RETURNS
* Success: S_OK. lpmal contains the shells IMalloc interface.
* Failure. An HRESULT error code.
*
* SEE ALSO
* CoGetMalloc, SHLoadOLE
*/
HRESULT WINAPI SHGetMalloc(LPMALLOC *lpmal)
{
TRACE("(%p)\n", lpmal);
return CoGetMalloc(MEMCTX_TASK, lpmal);
}
/*************************************************************************
* SHAlloc [SHELL32.196]
*
* Equivalent to CoTaskMemAlloc. Under Windows 9x this function could use
* the shell32 built-in "mini-COM" without the need to load ole32.dll -
* see SHLoadOLE for details.
*
* NOTES
* exported by ordinal
*
* SEE ALSO
* CoTaskMemAlloc, SHLoadOLE
*/
LPVOID WINAPI SHAlloc(DWORD len)
{
LPVOID ret;
ret = CoTaskMemAlloc(len);
TRACE("%u bytes at %p\n",len, ret);
return ret;
}
/*************************************************************************
* SHFree [SHELL32.195]
*
* Equivalent to CoTaskMemFree. Under Windows 9x this function could use
* the shell32 built-in "mini-COM" without the need to load ole32.dll -
* see SHLoadOLE for details.
*
* NOTES
* exported by ordinal
*
* SEE ALSO
* CoTaskMemFree, SHLoadOLE
*/
void WINAPI SHFree(LPVOID pv)
{
TRACE("%p\n",pv);
CoTaskMemFree(pv);
}
/*************************************************************************
* SHGetDesktopFolder [SHELL32.@]
*/
HRESULT WINAPI SHGetDesktopFolder(IShellFolder **psf)
{
HRESULT hres = S_OK;
TRACE("\n");
if(!psf) return E_INVALIDARG;
*psf = NULL;
hres = ISF_Desktop_Constructor(NULL, &IID_IShellFolder,(LPVOID*)psf);
TRACE("-- %p->(%p)\n",psf, *psf);
return hres;
}
/**************************************************************************
* Default ClassFactory Implementation
*
* SHCreateDefClassObject
*
* NOTES
* Helper function for dlls without their own classfactory.
* A generic classfactory is returned.
* When the CreateInstance of the cf is called the callback is executed.
*/
typedef struct
{
const IClassFactoryVtbl *lpVtbl;
LONG ref;
CLSID *rclsid;
LPFNCREATEINSTANCE lpfnCI;
const IID * riidInst;
LONG * pcRefDll; /* pointer to refcounter in external dll (ugrrr...) */
} IDefClFImpl;
static const IClassFactoryVtbl dclfvt;
/**************************************************************************
* IDefClF_fnConstructor
*/
static IClassFactory * IDefClF_fnConstructor(LPFNCREATEINSTANCE lpfnCI, PLONG pcRefDll, REFIID riidInst)
{
IDefClFImpl* lpclf;
lpclf = HeapAlloc(GetProcessHeap(),0,sizeof(IDefClFImpl));
lpclf->ref = 1;
lpclf->lpVtbl = &dclfvt;
lpclf->lpfnCI = lpfnCI;
lpclf->pcRefDll = pcRefDll;
if (pcRefDll) InterlockedIncrement(pcRefDll);
lpclf->riidInst = riidInst;
TRACE("(%p)%s\n",lpclf, shdebugstr_guid(riidInst));
return (LPCLASSFACTORY)lpclf;
}
/**************************************************************************
* IDefClF_fnQueryInterface
*/
static HRESULT WINAPI IDefClF_fnQueryInterface(
LPCLASSFACTORY iface, REFIID riid, LPVOID *ppvObj)
{
IDefClFImpl *This = (IDefClFImpl *)iface;
TRACE("(%p)->(%s)\n",This,shdebugstr_guid(riid));
*ppvObj = NULL;
if(IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IClassFactory)) {
*ppvObj = This;
InterlockedIncrement(&This->ref);
return S_OK;
}
TRACE("-- E_NOINTERFACE\n");
return E_NOINTERFACE;
}
/******************************************************************************
* IDefClF_fnAddRef
*/
static ULONG WINAPI IDefClF_fnAddRef(LPCLASSFACTORY iface)
{
IDefClFImpl *This = (IDefClFImpl *)iface;
ULONG refCount = InterlockedIncrement(&This->ref);
TRACE("(%p)->(count=%u)\n", This, refCount - 1);
return refCount;
}
/******************************************************************************
* IDefClF_fnRelease
*/
static ULONG WINAPI IDefClF_fnRelease(LPCLASSFACTORY iface)
{
IDefClFImpl *This = (IDefClFImpl *)iface;
ULONG refCount = InterlockedDecrement(&This->ref);
TRACE("(%p)->(count=%u)\n", This, refCount + 1);
if (!refCount)
{
if (This->pcRefDll) InterlockedDecrement(This->pcRefDll);
TRACE("-- destroying IClassFactory(%p)\n",This);
HeapFree(GetProcessHeap(),0,This);
return 0;
}
return refCount;
}
/******************************************************************************
* IDefClF_fnCreateInstance
*/
static HRESULT WINAPI IDefClF_fnCreateInstance(
LPCLASSFACTORY iface, LPUNKNOWN pUnkOuter, REFIID riid, LPVOID *ppvObject)
{
IDefClFImpl *This = (IDefClFImpl *)iface;
TRACE("%p->(%p,%s,%p)\n",This,pUnkOuter,shdebugstr_guid(riid),ppvObject);
*ppvObject = NULL;
if ( This->riidInst==NULL ||
IsEqualCLSID(riid, This->riidInst) ||
IsEqualCLSID(riid, &IID_IUnknown) )
{
return This->lpfnCI(pUnkOuter, riid, ppvObject);
}
ERR("unknown IID requested %s\n",shdebugstr_guid(riid));
return E_NOINTERFACE;
}
/******************************************************************************
* IDefClF_fnLockServer
*/
static HRESULT WINAPI IDefClF_fnLockServer(LPCLASSFACTORY iface, BOOL fLock)
{
IDefClFImpl *This = (IDefClFImpl *)iface;
TRACE("%p->(0x%x), not implemented\n",This, fLock);
return E_NOTIMPL;
}
static const IClassFactoryVtbl dclfvt =
{
IDefClF_fnQueryInterface,
IDefClF_fnAddRef,
IDefClF_fnRelease,
IDefClF_fnCreateInstance,
IDefClF_fnLockServer
};
/******************************************************************************
* SHCreateDefClassObject [SHELL32.70]
*/
HRESULT WINAPI SHCreateDefClassObject(
REFIID riid,
LPVOID* ppv,
LPFNCREATEINSTANCE lpfnCI, /* [in] create instance callback entry */
LPDWORD pcRefDll, /* [in/out] ref count of the dll */
REFIID riidInst) /* [in] optional interface to the instance */
{
IClassFactory * pcf;
TRACE("%s %p %p %p %s\n",
shdebugstr_guid(riid), ppv, lpfnCI, pcRefDll, shdebugstr_guid(riidInst));
if (! IsEqualCLSID(riid, &IID_IClassFactory) ) return E_NOINTERFACE;
if (! (pcf = IDefClF_fnConstructor(lpfnCI, (PLONG)pcRefDll, riidInst))) return E_OUTOFMEMORY;
*ppv = pcf;
return NOERROR;
}
/*************************************************************************
* DragAcceptFiles [SHELL32.@]
*/
void WINAPI DragAcceptFiles(HWND hWnd, BOOL b)
{
LONG exstyle;
if( !IsWindow(hWnd) ) return;
exstyle = GetWindowLongA(hWnd,GWL_EXSTYLE);
if (b)
exstyle |= WS_EX_ACCEPTFILES;
else
exstyle &= ~WS_EX_ACCEPTFILES;
SetWindowLongA(hWnd,GWL_EXSTYLE,exstyle);
}
/*************************************************************************
* DragFinish [SHELL32.@]
*/
void WINAPI DragFinish(HDROP h)
{
TRACE("\n");
GlobalFree(h);
}
/*************************************************************************
* DragQueryPoint [SHELL32.@]
*/
BOOL WINAPI DragQueryPoint(HDROP hDrop, POINT *p)
{
DROPFILES *lpDropFileStruct;
BOOL bRet;
TRACE("\n");
lpDropFileStruct = GlobalLock(hDrop);
*p = lpDropFileStruct->pt;
bRet = lpDropFileStruct->fNC;
GlobalUnlock(hDrop);
return bRet;
}
/*************************************************************************
* DragQueryFileA [SHELL32.@]
* DragQueryFile [SHELL32.@]
*/
UINT WINAPI DragQueryFileA(
HDROP hDrop,
UINT lFile,
LPSTR lpszFile,
UINT lLength)
{
LPSTR lpDrop;
UINT i = 0;
DROPFILES *lpDropFileStruct = GlobalLock(hDrop);
TRACE("(%p, %x, %p, %u)\n", hDrop,lFile,lpszFile,lLength);
if(!lpDropFileStruct) goto end;
lpDrop = (LPSTR) lpDropFileStruct + lpDropFileStruct->pFiles;
if(lpDropFileStruct->fWide) {
LPWSTR lpszFileW = NULL;
if(lpszFile) {
lpszFileW = HeapAlloc(GetProcessHeap(), 0, lLength*sizeof(WCHAR));
if(lpszFileW == NULL) {
goto end;
}
}
i = DragQueryFileW(hDrop, lFile, lpszFileW, lLength);
if(lpszFileW) {
WideCharToMultiByte(CP_ACP, 0, lpszFileW, -1, lpszFile, lLength, 0, NULL);
HeapFree(GetProcessHeap(), 0, lpszFileW);
}
goto end;
}
while (i++ < lFile)
{
while (*lpDrop++); /* skip filename */
if (!*lpDrop)
{
i = (lFile == 0xFFFFFFFF) ? i : 0;
goto end;
}
}
i = strlen(lpDrop);
if (!lpszFile ) goto end; /* needed buffer size */
lstrcpynA (lpszFile, lpDrop, lLength);
end:
GlobalUnlock(hDrop);
return i;
}
/*************************************************************************
* DragQueryFileW [SHELL32.@]
*/
UINT WINAPI DragQueryFileW(
HDROP hDrop,
UINT lFile,
LPWSTR lpszwFile,
UINT lLength)
{
LPWSTR lpwDrop;
UINT i = 0;
DROPFILES *lpDropFileStruct = GlobalLock(hDrop);
TRACE("(%p, %x, %p, %u)\n", hDrop,lFile,lpszwFile,lLength);
if(!lpDropFileStruct) goto end;
lpwDrop = (LPWSTR) ((LPSTR)lpDropFileStruct + lpDropFileStruct->pFiles);
if(lpDropFileStruct->fWide == FALSE) {
LPSTR lpszFileA = NULL;
if(lpszwFile) {
lpszFileA = HeapAlloc(GetProcessHeap(), 0, lLength);
if(lpszFileA == NULL) {
goto end;
}
}
i = DragQueryFileA(hDrop, lFile, lpszFileA, lLength);
if(lpszFileA) {
MultiByteToWideChar(CP_ACP, 0, lpszFileA, -1, lpszwFile, lLength);
HeapFree(GetProcessHeap(), 0, lpszFileA);
}
goto end;
}
i = 0;
while (i++ < lFile)
{
while (*lpwDrop++); /* skip filename */
if (!*lpwDrop)
{
i = (lFile == 0xFFFFFFFF) ? i : 0;
goto end;
}
}
i = strlenW(lpwDrop);
if ( !lpszwFile) goto end; /* needed buffer size */
lstrcpynW (lpszwFile, lpwDrop, lLength);
end:
GlobalUnlock(hDrop);
return i;
}
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