Sweden-Number/dlls/shell32/shellole.c

633 lines
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/*
* handling of SHELL32.DLL OLE-Objects
*
* Copyright 1997 Marcus Meissner
* Copyright 1998 Juergen Schmied <juergen.schmied@metronet.de>
*
*/
#include <stdlib.h>
#include <string.h>
#include "shlobj.h"
#include "shlguid.h"
#include "winreg.h"
#include "wine/unicode.h"
#include "winerror.h"
#include "debugtools.h"
#include "shell32_main.h"
DEFAULT_DEBUG_CHANNEL(shell);
DWORD WINAPI SHCLSIDFromStringA (LPSTR clsid, CLSID *id);
extern IShellFolder * IShellFolder_Constructor(
IShellFolder * psf,
LPITEMIDLIST pidl);
extern HRESULT IFSFolder_Constructor(
IUnknown * pUnkOuter,
REFIID riid,
LPVOID * ppv);
/*************************************************************************
* SHCoCreateInstance [SHELL32.102]
*
* NOTES
* exported by ordinal
*/
LRESULT WINAPI SHCoCreateInstance(
LPSTR aclsid,
REFCLSID clsid,
IUnknown * unknownouter,
REFIID refiid,
LPVOID *ppv)
{
DWORD hres;
IID iid;
CLSID * myclsid = (CLSID*)clsid;
if (!clsid)
{
if (!aclsid) return REGDB_E_CLASSNOTREG;
SHCLSIDFromStringA(aclsid, &iid);
myclsid = &iid;
}
TRACE("(%p,\n\tCLSID:\t%s, unk:%p\n\tIID:\t%s,%p)\n",
aclsid,debugstr_guid(myclsid),unknownouter,debugstr_guid(refiid),ppv);
if IsEqualCLSID(myclsid, &CLSID_ShellFSFolder)
{
hres = IFSFolder_Constructor(unknownouter, refiid, ppv);
}
else
{
hres = CoCreateInstance(myclsid, unknownouter, CLSCTX_INPROC_SERVER, refiid, ppv);
}
if(hres!=S_OK)
{
ERR("failed (0x%08lx) to create \n\tCLSID:\t%s\n\tIID:\t%s\n",
hres, debugstr_guid(myclsid), debugstr_guid(refiid));
ERR("class not found in registry\n");
}
TRACE("-- instance: %p\n",*ppv);
return hres;
}
/*************************************************************************
* SHELL32_DllGetClassObject [SHELL32.128]
*/
HRESULT WINAPI SHELL32_DllGetClassObject(REFCLSID rclsid, REFIID iid,LPVOID *ppv)
{ HRESULT hres = E_OUTOFMEMORY;
LPCLASSFACTORY lpclf;
TRACE("\n\tCLSID:\t%s,\n\tIID:\t%s\n",debugstr_guid(rclsid),debugstr_guid(iid));
*ppv = NULL;
if(IsEqualCLSID(rclsid, &CLSID_ShellDesktop)||
IsEqualCLSID(rclsid, &CLSID_ShellLink))
{
lpclf = IClassFactory_Constructor( rclsid );
if(lpclf)
{
hres = IClassFactory_QueryInterface(lpclf,iid, ppv);
IClassFactory_Release(lpclf);
}
}
else
{
WARN("-- CLSID not found\n");
hres = CLASS_E_CLASSNOTAVAILABLE;
}
TRACE("-- pointer to class factory: %p\n",*ppv);
return hres;
}
/*************************************************************************
* SHCLSIDFromString [SHELL32.147]
*
* NOTES
* exported by ordinal
*/
DWORD WINAPI SHCLSIDFromStringA (LPSTR 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 (LPWSTR clsid, CLSID *id)
{
TRACE("(%p(%s) %p)\n", clsid, debugstr_w(clsid), id);
return CLSIDFromString(clsid, id);
}
DWORD WINAPI SHCLSIDFromStringAW (LPVOID clsid, CLSID *id)
{
if (SHELL_OsIsUnicode())
return SHCLSIDFromStringW (clsid, id);
return SHCLSIDFromStringA (clsid, id);
}
/*************************************************************************
* SHGetMalloc [SHELL32.220]
* returns the interface to shell malloc.
*
* [SDK header win95/shlobj.h:
* equivalent to: #define SHGetMalloc(ppmem) CoGetMalloc(MEMCTX_TASK, ppmem)
* ]
* What we are currently doing is not very wrong, since we always use the same
* heap (ProcessHeap).
*/
DWORD WINAPI SHGetMalloc(LPMALLOC *lpmal)
{
TRACE("(%p)\n", lpmal);
return CoGetMalloc(0,lpmal);
}
/*************************************************************************
* SHGetDesktopFolder [SHELL32.216]
*/
LPSHELLFOLDER pdesktopfolder=NULL;
DWORD WINAPI SHGetDesktopFolder(IShellFolder **psf)
{
HRESULT hres = S_OK;
LPCLASSFACTORY lpclf;
TRACE("%p->(%p)\n",psf,*psf);
*psf=NULL;
if (!pdesktopfolder)
{
lpclf = IClassFactory_Constructor(&CLSID_ShellDesktop);
if(lpclf)
{
hres = IClassFactory_CreateInstance(lpclf,NULL,(REFIID)&IID_IShellFolder, (void*)&pdesktopfolder);
IClassFactory_Release(lpclf);
}
}
if (pdesktopfolder)
{
/* even if we create the folder, add a ref so the application can<61>t destroy the folder*/
IShellFolder_AddRef(pdesktopfolder);
*psf = pdesktopfolder;
}
TRACE("-- %p->(%p)\n",psf, *psf);
return hres;
}
/**************************************************************************
* IClassFactory Implementation
*/
typedef struct
{
/* IUnknown fields */
ICOM_VFIELD(IClassFactory);
DWORD ref;
CLSID *rclsid;
} IClassFactoryImpl;
static ICOM_VTABLE(IClassFactory) clfvt;
/**************************************************************************
* IClassFactory_Constructor
*/
LPCLASSFACTORY IClassFactory_Constructor(REFCLSID rclsid)
{
IClassFactoryImpl* lpclf;
lpclf= (IClassFactoryImpl*)HeapAlloc(GetProcessHeap(),0,sizeof(IClassFactoryImpl));
lpclf->ref = 1;
ICOM_VTBL(lpclf) = &clfvt;
lpclf->rclsid = (CLSID*)rclsid;
TRACE("(%p)->()\n",lpclf);
InterlockedIncrement(&shell32_ObjCount);
return (LPCLASSFACTORY)lpclf;
}
/**************************************************************************
* IClassFactory_QueryInterface
*/
static HRESULT WINAPI IClassFactory_fnQueryInterface(
LPCLASSFACTORY iface, REFIID riid, LPVOID *ppvObj)
{
ICOM_THIS(IClassFactoryImpl,iface);
TRACE("(%p)->(\n\tIID:\t%s)\n",This,debugstr_guid(riid));
*ppvObj = NULL;
if(IsEqualIID(riid, &IID_IUnknown)) /*IUnknown*/
{ *ppvObj = This;
}
else if(IsEqualIID(riid, &IID_IClassFactory)) /*IClassFactory*/
{ *ppvObj = (IClassFactory*)This;
}
if(*ppvObj)
{ IUnknown_AddRef((LPUNKNOWN)*ppvObj);
TRACE("-- Interface: (%p)->(%p)\n",ppvObj,*ppvObj);
return S_OK;
}
TRACE("-- Interface: %s E_NOINTERFACE\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
/******************************************************************************
* IClassFactory_AddRef
*/
static ULONG WINAPI IClassFactory_fnAddRef(LPCLASSFACTORY iface)
{
ICOM_THIS(IClassFactoryImpl,iface);
TRACE("(%p)->(count=%lu)\n",This,This->ref);
InterlockedIncrement(&shell32_ObjCount);
return InterlockedIncrement(&This->ref);
}
/******************************************************************************
* IClassFactory_Release
*/
static ULONG WINAPI IClassFactory_fnRelease(LPCLASSFACTORY iface)
{
ICOM_THIS(IClassFactoryImpl,iface);
TRACE("(%p)->(count=%lu)\n",This,This->ref);
InterlockedDecrement(&shell32_ObjCount);
if (!InterlockedDecrement(&This->ref))
{
TRACE("-- destroying IClassFactory(%p)\n",This);
HeapFree(GetProcessHeap(),0,This);
return 0;
}
return This->ref;
}
/******************************************************************************
* IClassFactory_CreateInstance
*/
static HRESULT WINAPI IClassFactory_fnCreateInstance(
LPCLASSFACTORY iface, LPUNKNOWN pUnknown, REFIID riid, LPVOID *ppObject)
{
ICOM_THIS(IClassFactoryImpl,iface);
IUnknown *pObj = NULL;
HRESULT hres;
TRACE("%p->(%p,\n\tIID:\t%s,%p)\n",This,pUnknown,debugstr_guid(riid),ppObject);
*ppObject = NULL;
if(pUnknown)
{
return(CLASS_E_NOAGGREGATION);
}
if (IsEqualCLSID(This->rclsid, &CLSID_ShellDesktop))
{
pObj = (IUnknown *)ISF_Desktop_Constructor();
}
else if (IsEqualCLSID(This->rclsid, &CLSID_ShellLink))
{
pObj = (IUnknown *)IShellLink_Constructor(FALSE);
}
else
{
ERR("unknown IID requested\n\tIID:\t%s\n",debugstr_guid(riid));
return(E_NOINTERFACE);
}
if (!pObj)
{
return(E_OUTOFMEMORY);
}
hres = IUnknown_QueryInterface(pObj,riid, ppObject);
IUnknown_Release(pObj);
TRACE("-- Object created: (%p)->%p\n",This,*ppObject);
return hres;
}
/******************************************************************************
* IClassFactory_LockServer
*/
static HRESULT WINAPI IClassFactory_fnLockServer(LPCLASSFACTORY iface, BOOL fLock)
{
ICOM_THIS(IClassFactoryImpl,iface);
TRACE("%p->(0x%x), not implemented\n",This, fLock);
return E_NOTIMPL;
}
static ICOM_VTABLE(IClassFactory) clfvt =
{
ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
IClassFactory_fnQueryInterface,
IClassFactory_fnAddRef,
IClassFactory_fnRelease,
IClassFactory_fnCreateInstance,
IClassFactory_fnLockServer
};
/**************************************************************************
* Default ClassFactory Implementation
*
* SHCreateDefClassObject
*
* NOTES
* helper function for dll's without a own classfactory
* a generic classfactory is returned
* when the CreateInstance of the cf is called the callback is executed
*/
typedef HRESULT (CALLBACK * LPFNCREATEINSTANCE)(IUnknown* pUnkOuter, REFIID riid, LPVOID* ppvObject);
typedef struct
{
ICOM_VFIELD(IClassFactory);
DWORD ref;
CLSID *rclsid;
LPFNCREATEINSTANCE lpfnCI;
const IID * riidInst;
ULONG * pcRefDll; /* pointer to refcounter in external dll (ugrrr...) */
} IDefClFImpl;
static ICOM_VTABLE(IClassFactory) dclfvt;
/**************************************************************************
* IDefClF_fnConstructor
*/
IClassFactory * IDefClF_fnConstructor(LPFNCREATEINSTANCE lpfnCI, PLONG pcRefDll, REFIID riidInst)
{
IDefClFImpl* lpclf;
lpclf = (IDefClFImpl*)HeapAlloc(GetProcessHeap(),0,sizeof(IDefClFImpl));
lpclf->ref = 1;
ICOM_VTBL(lpclf) = &dclfvt;
lpclf->lpfnCI = lpfnCI;
lpclf->pcRefDll = pcRefDll;
if (pcRefDll) InterlockedIncrement(pcRefDll);
lpclf->riidInst = riidInst;
TRACE("(%p)\n\tIID:\t%s\n",lpclf, debugstr_guid(riidInst));
InterlockedIncrement(&shell32_ObjCount);
return (LPCLASSFACTORY)lpclf;
}
/**************************************************************************
* IDefClF_fnQueryInterface
*/
static HRESULT WINAPI IDefClF_fnQueryInterface(
LPCLASSFACTORY iface, REFIID riid, LPVOID *ppvObj)
{
ICOM_THIS(IDefClFImpl,iface);
TRACE("(%p)->(\n\tIID:\t%s)\n",This,debugstr_guid(riid));
*ppvObj = NULL;
if(IsEqualIID(riid, &IID_IUnknown)) /*IUnknown*/
{ *ppvObj = This;
}
else if(IsEqualIID(riid, &IID_IClassFactory)) /*IClassFactory*/
{ *ppvObj = (IClassFactory*)This;
}
if(*ppvObj)
{ IUnknown_AddRef((LPUNKNOWN)*ppvObj);
TRACE("-- Interface: (%p)->(%p)\n",ppvObj,*ppvObj);
return S_OK;
}
TRACE("-- Interface: %s E_NOINTERFACE\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
/******************************************************************************
* IDefClF_fnAddRef
*/
static ULONG WINAPI IDefClF_fnAddRef(LPCLASSFACTORY iface)
{
ICOM_THIS(IDefClFImpl,iface);
TRACE("(%p)->(count=%lu)\n",This,This->ref);
InterlockedIncrement(&shell32_ObjCount);
return InterlockedIncrement(&This->ref);
}
/******************************************************************************
* IDefClF_fnRelease
*/
static ULONG WINAPI IDefClF_fnRelease(LPCLASSFACTORY iface)
{
ICOM_THIS(IDefClFImpl,iface);
TRACE("(%p)->(count=%lu)\n",This,This->ref);
InterlockedDecrement(&shell32_ObjCount);
if (!InterlockedDecrement(&This->ref))
{
if (This->pcRefDll) InterlockedDecrement(This->pcRefDll);
TRACE("-- destroying IClassFactory(%p)\n",This);
HeapFree(GetProcessHeap(),0,This);
return 0;
}
return This->ref;
}
/******************************************************************************
* IDefClF_fnCreateInstance
*/
static HRESULT WINAPI IDefClF_fnCreateInstance(
LPCLASSFACTORY iface, LPUNKNOWN pUnkOuter, REFIID riid, LPVOID *ppvObject)
{
ICOM_THIS(IDefClFImpl,iface);
TRACE("%p->(%p,\n\tIID:\t%s,%p)\n",This,pUnkOuter,debugstr_guid(riid),ppvObject);
*ppvObject = NULL;
if(pUnkOuter)
return(CLASS_E_NOAGGREGATION);
if ( This->riidInst==NULL ||
IsEqualCLSID(riid, This->riidInst) ||
IsEqualCLSID(riid, &IID_IUnknown) )
{
return This->lpfnCI(pUnkOuter, riid, ppvObject);
}
ERR("unknown IID requested\n\tIID:\t%s\n",debugstr_guid(riid));
return E_NOINTERFACE;
}
/******************************************************************************
* IDefClF_fnLockServer
*/
static HRESULT WINAPI IDefClF_fnLockServer(LPCLASSFACTORY iface, BOOL fLock)
{
ICOM_THIS(IDefClFImpl,iface);
TRACE("%p->(0x%x), not implemented\n",This, fLock);
return E_NOTIMPL;
}
static ICOM_VTABLE(IClassFactory) dclfvt =
{
ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
IDefClF_fnQueryInterface,
IDefClF_fnAddRef,
IDefClF_fnRelease,
IDefClF_fnCreateInstance,
IDefClF_fnLockServer
};
/******************************************************************************
* SHCreateDefClassObject [SHELL32.70]
*/
HRESULT WINAPI SHCreateDefClassObject(
REFIID riid,
LPVOID* ppv,
LPFNCREATEINSTANCE lpfnCI, /* create instance callback entry */
PLONG pcRefDll, /* ref count of the dll */
REFIID riidInst) /* optional interface to the instance */
{
TRACE("\n\tIID:\t%s %p %p %p \n\tIIDIns:\t%s\n",
debugstr_guid(riid), ppv, lpfnCI, pcRefDll, debugstr_guid(riidInst));
if ( IsEqualCLSID(riid, &IID_IClassFactory) )
{
IClassFactory * pcf = IDefClF_fnConstructor(lpfnCI, pcRefDll, riidInst);
if (pcf)
{
*ppv = pcf;
return NOERROR;
}
return E_OUTOFMEMORY;
}
return E_NOINTERFACE;
}
/*************************************************************************
* DragAcceptFiles [SHELL32.54]
*/
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 [SHELL32.80]
*/
void WINAPI DragFinish(HDROP h)
{
TRACE("\n");
GlobalFree((HGLOBAL)h);
}
/*************************************************************************
* DragQueryPoint [SHELL32.135]
*/
BOOL WINAPI DragQueryPoint(HDROP hDrop, POINT *p)
{
DROPFILES *lpDropFileStruct;
BOOL bRet;
TRACE("\n");
lpDropFileStruct = (DROPFILES *) GlobalLock(hDrop);
*p = lpDropFileStruct->pt;
bRet = lpDropFileStruct->fNC;
GlobalUnlock(hDrop);
return bRet;
}
/*************************************************************************
* DragQueryFileA [SHELL32.81] [shell32.82]
*/
UINT WINAPI DragQueryFileA(
HDROP hDrop,
UINT lFile,
LPSTR lpszFile,
UINT lLength)
{
LPSTR lpDrop;
UINT i = 0;
DROPFILES *lpDropFileStruct = (DROPFILES *) GlobalLock(hDrop);
TRACE("(%08x, %x, %p, %u)\n", hDrop,lFile,lpszFile,lLength);
if(!lpDropFileStruct) goto end;
lpDrop = (LPSTR) lpDropFileStruct + lpDropFileStruct->pFiles;
while (i++ < lFile)
{
while (*lpDrop++); /* skip filename */
if (!*lpDrop)
{
i = (lFile == 0xFFFFFFFF) ? i : 0;
goto end;
}
}
i = strlen(lpDrop);
i++;
if (!lpszFile ) goto end; /* needed buffer size */
i = (lLength > i) ? i : lLength;
lstrcpynA (lpszFile, lpDrop, i);
end:
GlobalUnlock(hDrop);
return i;
}
/*************************************************************************
* DragQueryFileW [shell32.133]
*/
UINT WINAPI DragQueryFileW(
HDROP hDrop,
UINT lFile,
LPWSTR lpszwFile,
UINT lLength)
{
LPWSTR lpwDrop;
UINT i = 0;
DROPFILES *lpDropFileStruct = (DROPFILES *) GlobalLock(hDrop);
TRACE("(%08x, %x, %p, %u)\n", hDrop,lFile,lpszwFile,lLength);
if(!lpDropFileStruct) goto end;
lpwDrop = (LPWSTR) lpDropFileStruct + lpDropFileStruct->pFiles;
i = 0;
while (i++ < lFile)
{
while (*lpwDrop++); /* skip filename */
if (!*lpwDrop)
{
i = (lFile == 0xFFFFFFFF) ? i : 0;
goto end;
}
}
i = strlenW(lpwDrop);
i++;
if ( !lpszwFile) goto end; /* needed buffer size */
i = (lLength > i) ? i : lLength;
lstrcpynW (lpszwFile, lpwDrop, i);
end:
GlobalUnlock(hDrop);
return i;
}