Sweden-Number/dlls/shell32/shellole.c

363 lines
9.7 KiB
C

/*
* 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 "winreg.h"
#include "winerror.h"
#include "wine/obj_base.h"
#include "winversion.h"
#include "shlguid.h"
#include "shlobj.h"
#include "shell32_main.h"
#include "debug.h"
/*************************************************************************
*
*/
typedef DWORD (* WINAPI GetClassPtr)(REFCLSID,REFIID,LPVOID);
static GetClassPtr SH_find_moduleproc(LPSTR dllname,HMODULE *xhmod,LPSTR name)
{ HMODULE hmod;
FARPROC dllunload,nameproc;
TRACE(shell,"dll=%s, hmodule=%p, name=%s\n",dllname, xhmod, name);
if (xhmod)
{ *xhmod = 0;
}
if (!strcasecmp(PathFindFilenameA(dllname),"shell32.dll"))
{ return (GetClassPtr)SHELL32_DllGetClassObject;
}
hmod = LoadLibraryExA(dllname,0,LOAD_WITH_ALTERED_SEARCH_PATH);
if (!hmod)
{ return NULL;
}
dllunload = GetProcAddress(hmod,"DllCanUnloadNow");
if (!dllunload)
{ if (xhmod)
{ *xhmod = hmod;
}
}
nameproc = GetProcAddress(hmod,name);
if (!nameproc)
{ FreeLibrary(hmod);
return NULL;
}
/* register unloadable dll with unloadproc ... */
return (GetClassPtr)nameproc;
}
/*************************************************************************
*
*/
static DWORD SH_get_instance(REFCLSID clsid,LPSTR dllname,LPVOID unknownouter,REFIID refiid,LPVOID inst)
{ GetClassPtr dllgetclassob;
DWORD hres;
LPCLASSFACTORY classfac;
char xclsid[50],xrefiid[50];
WINE_StringFromCLSID((LPCLSID)clsid,xclsid);
WINE_StringFromCLSID((LPCLSID)refiid,xrefiid);
TRACE(shell,"\n\tCLSID:%s,%s,%p,\n\tIID:%s,%p\n",xclsid, dllname,unknownouter,xrefiid,inst);
dllgetclassob = SH_find_moduleproc(dllname,NULL,"DllGetClassObject");
if (!dllgetclassob)
{ return 0x80070000|GetLastError();
}
hres = (*dllgetclassob)(clsid,(REFIID)&IID_IClassFactory,&classfac);
if ((hres<0) || (hres>=0x80000000))
return hres;
if (!classfac)
{ FIXME(shell,"no classfactory, but hres is 0x%ld!\n",hres);
return E_FAIL;
}
IClassFactory_CreateInstance(classfac,unknownouter,refiid,inst);
IClassFactory_Release(classfac);
return 0;
}
/*************************************************************************
* SHCoCreateInstance [SHELL32.102]
*
* NOTES
* exported by ordinal
*/
LRESULT WINAPI SHCoCreateInstance(LPSTR aclsid,CLSID *clsid,LPUNKNOWN unknownouter,REFIID refiid,LPVOID inst)
{ char buffer[256],xclsid[48],xiid[48],path[260],tmodel[100];
HKEY inprockey;
DWORD pathlen,type,tmodellen;
DWORD hres;
WINE_StringFromCLSID(refiid,xiid);
if (clsid)
{ WINE_StringFromCLSID(clsid,xclsid);
}
else
{ if (!aclsid)
{ return 0x80040154;
}
strcpy(xclsid,aclsid);
}
TRACE(shell,"(%p,\n\tSID:\t%s,%p,\n\tIID:\t%s,%p)\n",aclsid,xclsid,unknownouter,xiid,inst);
sprintf(buffer,"CLSID\\%s\\InProcServer32",xclsid);
if (RegOpenKeyExA(HKEY_CLASSES_ROOT,buffer,0,0x02000000,&inprockey))
{ return SH_get_instance(clsid,"shell32.dll",unknownouter,refiid,inst);
}
pathlen=sizeof(path);
if (RegQueryValueA(inprockey,NULL,path,&pathlen))
{ RegCloseKey(inprockey);
return SH_get_instance(clsid,"shell32.dll",unknownouter,refiid,inst);
}
TRACE(shell, "Server dll is %s\n",path);
tmodellen=sizeof(tmodel);
type=REG_SZ;
if (RegQueryValueExA(inprockey,"ThreadingModel",NULL,&type,tmodel,&tmodellen))
{ RegCloseKey(inprockey);
return SH_get_instance(clsid,"shell32.dll",unknownouter,refiid,inst);
}
TRACE(shell, "Threading model is %s\n",tmodel);
hres=SH_get_instance(clsid,path,unknownouter,refiid,inst);
if (hres<0 || (hres>0x80000000))
{ hres=SH_get_instance(clsid,"shell32.dll",unknownouter,refiid,inst);
}
RegCloseKey(inprockey);
return hres;
}
/*************************************************************************
* SHELL32_DllGetClassObject [SHELL32.128]
*
* [Standart OLE/COM Interface Method]
* This Function retrives the pointer to a specified interface (iid) of
* a given class (rclsid).
* With this pointer it's possible to call the IClassFactory_CreateInstance
* method to get a instance of the requested Class.
* This function does NOT instantiate the Class!!!
*
* RETURNS
* HRESULT
*
*/
DWORD WINAPI SHELL32_DllGetClassObject(REFCLSID rclsid,REFIID iid,LPVOID *ppv)
{ HRESULT hres = E_OUTOFMEMORY;
LPCLASSFACTORY lpclf;
char xclsid[50],xiid[50];
WINE_StringFromCLSID((LPCLSID)rclsid,xclsid);
WINE_StringFromCLSID((LPCLSID)iid,xiid);
TRACE(shell,"\n\tCLSID:\t%s,\n\tIID:\t%s\n",xclsid,xiid);
*ppv = NULL;
if(IsEqualCLSID(rclsid, &CLSID_ShellDesktop)||
IsEqualCLSID(rclsid, &CLSID_ShellLink))
{ if(IsEqualCLSID(rclsid, &CLSID_ShellDesktop)) /*debug*/
{ TRACE(shell,"-- requested CLSID_ShellDesktop\n");
}
if (IsEqualCLSID(rclsid, &CLSID_ShellLink))
{ if (VERSION_OsIsUnicode ())
lpclf = IShellLinkW_CF_Constructor();
else
lpclf = IShellLink_CF_Constructor();
}
else
{ lpclf = IClassFactory_Constructor();
}
if(lpclf) {
hres = IClassFactory_QueryInterface(lpclf,iid, ppv);
IClassFactory_Release(lpclf);
}
}
else
{ WARN(shell, "-- CLSID not found\n");
hres = CLASS_E_CLASSNOTAVAILABLE;
}
TRACE(shell,"-- pointer to class factory: %p\n",*ppv);
return hres;
}
/*************************************************************************
* 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(shell,"(%p)\n", lpmal);
return CoGetMalloc(0,lpmal);
}
/**************************************************************************
* IClassFactory Implementation
*/
typedef struct
{
/* IUnknown fields */
ICOM_VTABLE(IClassFactory)* lpvtbl;
DWORD ref;
} IClassFactoryImpl;
static ICOM_VTABLE(IClassFactory) clfvt;
/**************************************************************************
* IClassFactory_Constructor
*/
LPCLASSFACTORY IClassFactory_Constructor(void)
{
IClassFactoryImpl* lpclf;
lpclf= (IClassFactoryImpl*)HeapAlloc(GetProcessHeap(),0,sizeof(IClassFactoryImpl));
lpclf->ref = 1;
lpclf->lpvtbl = &clfvt;
TRACE(shell,"(%p)->()\n",lpclf);
shell32_ObjCount++;
return (LPCLASSFACTORY)lpclf;
}
/**************************************************************************
* IClassFactory_QueryInterface
*/
static HRESULT WINAPI IClassFactory_fnQueryInterface(
LPCLASSFACTORY iface, REFIID riid, LPVOID *ppvObj)
{
ICOM_THIS(IClassFactoryImpl,iface);
char xriid[50];
WINE_StringFromCLSID((LPCLSID)riid,xriid);
TRACE(shell,"(%p)->(\n\tIID:\t%s)\n",This,xriid);
*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(shell,"-- Interface: (%p)->(%p)\n",ppvObj,*ppvObj);
return S_OK;
}
TRACE(shell,"-- Interface: E_NOINTERFACE\n");
return E_NOINTERFACE;
}
/******************************************************************************
* IClassFactory_AddRef
*/
static ULONG WINAPI IClassFactory_fnAddRef(LPCLASSFACTORY iface)
{
ICOM_THIS(IClassFactoryImpl,iface);
TRACE(shell,"(%p)->(count=%lu)\n",This,This->ref);
shell32_ObjCount++;
return ++(This->ref);
}
/******************************************************************************
* IClassFactory_Release
*/
static ULONG WINAPI IClassFactory_fnRelease(LPCLASSFACTORY iface)
{
ICOM_THIS(IClassFactoryImpl,iface);
TRACE(shell,"(%p)->(count=%lu)\n",This,This->ref);
shell32_ObjCount--;
if (!--(This->ref))
{ TRACE(shell,"-- 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;
char xriid[50];
WINE_StringFromCLSID((LPCLSID)riid,xriid);
TRACE(shell,"%p->(%p,\n\tIID:\t%s,%p)\n",This,pUnknown,xriid,ppObject);
*ppObject = NULL;
if(pUnknown)
{ return(CLASS_E_NOAGGREGATION);
}
if (IsEqualIID(riid, &IID_IShellFolder))
{ pObj = (IUnknown *)IShellFolder_Constructor(NULL,NULL);
}
else if (IsEqualIID(riid, &IID_IShellView))
{ pObj = (IUnknown *)IShellView_Constructor(NULL,NULL);
}
else if (IsEqualIID(riid, &IID_IExtractIcon))
{ pObj = (IUnknown *)IExtractIcon_Constructor(NULL);
}
else if (IsEqualIID(riid, &IID_IContextMenu))
{ pObj = (IUnknown *)IContextMenu_Constructor(NULL, NULL, 0);
}
else if (IsEqualIID(riid, &IID_IDataObject))
{ pObj = (IUnknown *)IDataObject_Constructor(0,NULL,NULL,0);
}
else
{ ERR(shell,"unknown IID requested\n\tIID:\t%s\n",xriid);
return(E_NOINTERFACE);
}
if (!pObj)
{ return(E_OUTOFMEMORY);
}
hres = pObj->lpvtbl->fnQueryInterface(pObj,riid, ppObject);
pObj->lpvtbl->fnRelease(pObj);
TRACE(shell,"-- 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(shell,"%p->(0x%x), not implemented\n",This, fLock);
return E_NOTIMPL;
}
static ICOM_VTABLE(IClassFactory) clfvt =
{
IClassFactory_fnQueryInterface,
IClassFactory_fnAddRef,
IClassFactory_fnRelease,
IClassFactory_fnCreateInstance,
IClassFactory_fnLockServer
};