dlls/shell32/shellole.c

   1 /*
   2  *      handling of SHELL32.DLL OLE-Objects
   3  *
   4  *      Copyright 1997  Marcus Meissner
   5  *      Copyright 1998  Juergen Schmied  <juergen.schmied@metronet.de>
   6  *
   7  */
   8
   9 #include <ctype.h>
  10 #include <stdlib.h>
  11 #include <string.h>
  12 #include "ole.h"
  13 #include "ole2.h"
  14 #include "debug.h"
  15 #include "shlobj.h"
  16 #include "objbase.h"
  17 #include "shell.h"
  18 #include "winerror.h"
  19 #include "winnls.h"
  20 #include "winproc.h"
  21 #include "winversion.h"
  22 #include "commctrl.h"
  23
  24 #include "shell32_main.h"
  25
  26 /*************************************************************************
  27  *
  28  */
  29 typedef DWORD (* WINAPI GetClassPtr)(REFCLSID,REFIID,LPVOID);
  30
  31 static GetClassPtr SH_find_moduleproc(LPSTR dllname,HMODULE32 *xhmod,LPSTR name)
  32 {       HMODULE32 hmod;
  33         FARPROC32 dllunload,nameproc;
  34
  35         TRACE(shell,"dll=%s, hmodule=%p, name=%s\n",dllname, xhmod, name);
  36         if (xhmod)
  37         { *xhmod = 0;
  38         }
  39         if (!strcasecmp(PathFindFilename32A(dllname),"shell32.dll"))
  40         { return (GetClassPtr)SHELL32_DllGetClassObject;
  41         }
  42
  43         hmod = LoadLibraryEx32A(dllname,0,LOAD_WITH_ALTERED_SEARCH_PATH);
  44         if (!hmod)
  45         { return NULL;
  46         }
  47         dllunload = GetProcAddress32(hmod,"DllCanUnloadNow");
  48         if (!dllunload)
  49         { if (xhmod)
  50           { *xhmod = hmod;
  51           }
  52         }
  53         nameproc = GetProcAddress32(hmod,name);
  54         if (!nameproc)
  55         { FreeLibrary32(hmod);
  56           return NULL;
  57         }
  58         /* register unloadable dll with unloadproc ... */
  59         return (GetClassPtr)nameproc;
  60 }
  61 /*************************************************************************
  62  *
  63  */
  64 static DWORD SH_get_instance(REFCLSID clsid,LPSTR dllname,LPVOID unknownouter,REFIID refiid,LPVOID inst)
  65 {       GetClassPtr     dllgetclassob;
  66         DWORD           hres;
  67         LPCLASSFACTORY  classfac;
  68
  69         char    xclsid[50],xrefiid[50];
  70         WINE_StringFromCLSID((LPCLSID)clsid,xclsid);
  71         WINE_StringFromCLSID((LPCLSID)refiid,xrefiid);
  72         TRACE(shell,"\n\tCLSID:%s,%s,%p,\n\tIID:%s,%p\n",xclsid, dllname,unknownouter,xrefiid,inst);
  73
  74         dllgetclassob = SH_find_moduleproc(dllname,NULL,"DllGetClassObject");
  75         if (!dllgetclassob)
  76         { return 0x80070000|GetLastError();
  77         }
  78
  79         hres = (*dllgetclassob)(clsid,(REFIID)&IID_IClassFactory,&classfac);
  80         if ((hres<0) || (hres>=0x80000000))
  81             return hres;
  82         if (!classfac)
  83         { FIXME(shell,"no classfactory, but hres is 0x%ld!\n",hres);
  84           return E_FAIL;
  85         }
  86         IClassFactory_CreateInstance(classfac,unknownouter,refiid,inst);
  87         IClassFactory_Release(classfac);
  88         return 0;
  89 }
  90
  91 /*************************************************************************
  92  * SHCoCreateInstance [SHELL32.102]
  93  *
  94  * NOTES
  95  *     exported by ordinal
  96  */
  97 LRESULT WINAPI SHCoCreateInstance(LPSTR aclsid,CLSID *clsid,LPUNKNOWN unknownouter,REFIID refiid,LPVOID inst)
  98 {       char    buffer[256],xclsid[48],xiid[48],path[260],tmodel[100];
  99         HKEY    inprockey;
 100         DWORD   pathlen,type,tmodellen;
 101         DWORD   hres;
 102
 103         WINE_StringFromCLSID(refiid,xiid);
 104
 105         if (clsid)
 106         { WINE_StringFromCLSID(clsid,xclsid);
 107         }
 108         else
 109         { if (!aclsid)
 110           {     return 0x80040154;
 111           }
 112           strcpy(xclsid,aclsid);
 113         }
 114         TRACE(shell,"(%p,\n\tSID:\t%s,%p,\n\tIID:\t%s,%p)\n",aclsid,xclsid,unknownouter,xiid,inst);
 115
 116         sprintf(buffer,"CLSID\\%s\\InProcServer32",xclsid);
 117
 118         if (RegOpenKeyEx32A(HKEY_CLASSES_ROOT,buffer,0,0x02000000,&inprockey))
 119         { return SH_get_instance(clsid,"shell32.dll",unknownouter,refiid,inst);
 120         }
 121         pathlen=sizeof(path);
 122
 123         if (RegQueryValue32A(inprockey,NULL,path,&pathlen))
 124         { RegCloseKey(inprockey);
 125           return SH_get_instance(clsid,"shell32.dll",unknownouter,refiid,inst);
 126         }
 127
 128         TRACE(shell, "Server dll is %s\n",path);
 129         tmodellen=sizeof(tmodel);
 130         type=REG_SZ;
 131         if (RegQueryValueEx32A(inprockey,"ThreadingModel",NULL,&type,tmodel,&tmodellen))
 132         { RegCloseKey(inprockey);
 133           return SH_get_instance(clsid,"shell32.dll",unknownouter,refiid,inst);
 134         }
 135
 136         TRACE(shell, "Threading model is %s\n",tmodel);
 137
 138         hres=SH_get_instance(clsid,path,unknownouter,refiid,inst);
 139         if (hres<0 || (hres>0x80000000))
 140         { hres=SH_get_instance(clsid,"shell32.dll",unknownouter,refiid,inst);
 141         }
 142         RegCloseKey(inprockey);
 143         return hres;
 144 }
 145
 146
 147 /*************************************************************************
 148  * SHELL32_DllGetClassObject   [SHELL32.128]
 149  *
 150  * [Standart OLE/COM Interface Method]
 151  * This Function retrives the pointer to a specified interface (iid) of
 152  * a given class (rclsid).
 153  * With this pointer it's possible to call the IClassFactory_CreateInstance
 154  * method to get a instance of the requested Class.
 155  * This function does NOT instantiate the Class!!!
 156  *
 157  * RETURNS
 158  *   HRESULT
 159  *
 160  */
 161 DWORD WINAPI SHELL32_DllGetClassObject(REFCLSID rclsid,REFIID iid,LPVOID *ppv)
 162 {       HRESULT hres = E_OUTOFMEMORY;
 163         LPCLASSFACTORY lpclf;
 164
 165         char xclsid[50],xiid[50];
 166         WINE_StringFromCLSID((LPCLSID)rclsid,xclsid);
 167         WINE_StringFromCLSID((LPCLSID)iid,xiid);
 168         TRACE(shell,"\n\tCLSID:\t%s,\n\tIID:\t%s\n",xclsid,xiid);
 169
 170         *ppv = NULL;
 171         if(IsEqualCLSID(rclsid, &CLSID_ShellDesktop)||
 172            IsEqualCLSID(rclsid, &CLSID_ShellLink))
 173         { if(IsEqualCLSID(rclsid, &CLSID_ShellDesktop))      /*debug*/
 174           { TRACE(shell,"-- requested CLSID_ShellDesktop\n");
 175           }
 176
 177           if (IsEqualCLSID(rclsid, &CLSID_ShellLink))
 178           { if (VERSION_OsIsUnicode ())
 179               lpclf = IShellLinkW_CF_Constructor();
 180             else
 181               lpclf = IShellLink_CF_Constructor();
 182           }
 183           else
 184           { lpclf = IClassFactory_Constructor();
 185           }
 186
 187           if(lpclf) {
 188             hres = IClassFactory_QueryInterface(lpclf,iid, ppv);
 189             IClassFactory_Release(lpclf);
 190           }
 191         }
 192         else
 193         { WARN(shell, "-- CLSID not found\n");
 194           hres = CLASS_E_CLASSNOTAVAILABLE;
 195         }
 196         TRACE(shell,"-- pointer to class factory: %p\n",*ppv);
 197         return hres;
 198 }
 199
 200 /*************************************************************************
 201  *                       SHGetMalloc                    [SHELL32.220]
 202  * returns the interface to shell malloc.
 203  *
 204  * [SDK header win95/shlobj.h:
 205  * equivalent to:  #define SHGetMalloc(ppmem)   CoGetMalloc(MEMCTX_TASK, ppmem)
 206  * ]
 207  * What we are currently doing is not very wrong, since we always use the same
 208  * heap (ProcessHeap).
 209  */
 210 DWORD WINAPI SHGetMalloc(LPMALLOC32 *lpmal)
 211 {       TRACE(shell,"(%p)\n", lpmal);
 212         return CoGetMalloc32(0,lpmal);
 213 }
 214
 215 /**************************************************************************
 216 *  IClassFactory Implementation
 217 */
 218
 219 static ICOM_VTABLE(IClassFactory) clfvt;
 220
 221 /**************************************************************************
 222  *  IClassFactory_Constructor
 223  */
 224
 225 LPCLASSFACTORY IClassFactory_Constructor(void)
 226 {
 227         _IClassFactory* lpclf;
 228
 229         lpclf= (_IClassFactory*)HeapAlloc(GetProcessHeap(),0,sizeof(_IClassFactory));
 230         lpclf->ref = 1;
 231         lpclf->lpvtbl = &clfvt;
 232   TRACE(shell,"(%p)->()\n",lpclf);
 233         return (LPCLASSFACTORY)lpclf;
 234 }
 235 /**************************************************************************
 236  *  IClassFactory_QueryInterface
 237  */
 238 static HRESULT WINAPI IClassFactory_fnQueryInterface(
 239   LPUNKNOWN iface, REFIID riid, LPVOID *ppvObj)
 240 {
 241         ICOM_THIS(IClassFactory,iface);
 242         char    xriid[50];
 243         WINE_StringFromCLSID((LPCLSID)riid,xriid);
 244         TRACE(shell,"(%p)->(\n\tIID:\t%s)\n",this,xriid);
 245
 246         *ppvObj = NULL;
 247
 248         if(IsEqualIID(riid, &IID_IUnknown))          /*IUnknown*/
 249         { *ppvObj = this;
 250         }
 251         else if(IsEqualIID(riid, &IID_IClassFactory))  /*IClassFactory*/
 252         { *ppvObj = (IClassFactory*)this;
 253         }
 254
 255         if(*ppvObj)
 256         { IUnknown_AddRef((LPUNKNOWN)*ppvObj);
 257           TRACE(shell,"-- Interface: (%p)->(%p)\n",ppvObj,*ppvObj);
 258           return S_OK;
 259         }
 260         TRACE(shell,"-- Interface: E_NOINTERFACE\n");
 261         return E_NOINTERFACE;
 262 }
 263 /******************************************************************************
 264  * IClassFactory_AddRef
 265  */
 266 static ULONG WINAPI IClassFactory_fnAddRef(LPUNKNOWN iface)
 267 {
 268         ICOM_THIS(IClassFactory,iface);
 269         TRACE(shell,"(%p)->(count=%lu)\n",this,this->ref);
 270         return ++(this->ref);
 271 }
 272 /******************************************************************************
 273  * IClassFactory_Release
 274  */
 275 static ULONG WINAPI IClassFactory_fnRelease(LPUNKNOWN iface)
 276 {
 277         ICOM_THIS(IClassFactory,iface);
 278         TRACE(shell,"(%p)->(count=%lu)\n",this,this->ref);
 279         if (!--(this->ref))
 280         { TRACE(shell,"-- destroying IClassFactory(%p)\n",this);
 281                 HeapFree(GetProcessHeap(),0,this);
 282                 return 0;
 283         }
 284         return this->ref;
 285 }
 286 /******************************************************************************
 287  * IClassFactory_CreateInstance
 288  */
 289 static HRESULT WINAPI IClassFactory_fnCreateInstance(
 290   LPCLASSFACTORY iface, LPUNKNOWN pUnknown, REFIID riid, LPVOID *ppObject)
 291 {
 292         ICOM_THIS(IClassFactory,iface);
 293         IUnknown *pObj = NULL;
 294         HRESULT hres;
 295         char    xriid[50];
 296
 297         WINE_StringFromCLSID((LPCLSID)riid,xriid);
 298         TRACE(shell,"%p->(%p,\n\tIID:\t%s,%p)\n",this,pUnknown,xriid,ppObject);
 299
 300         *ppObject = NULL;
 301
 302         if(pUnknown)
 303         {       return(CLASS_E_NOAGGREGATION);
 304         }
 305
 306         if (IsEqualIID(riid, &IID_IShellFolder))
 307         { pObj = (IUnknown *)IShellFolder_Constructor(NULL,NULL);
 308         }
 309         else if (IsEqualIID(riid, &IID_IShellView))
 310         { pObj = (IUnknown *)IShellView_Constructor(NULL,NULL);
 311         }
 312         else if (IsEqualIID(riid, &IID_IExtractIcon))
 313         { pObj = (IUnknown *)IExtractIcon_Constructor(NULL);
 314         }
 315         else if (IsEqualIID(riid, &IID_IContextMenu))
 316         { pObj = (IUnknown *)IContextMenu_Constructor(NULL, NULL, 0);
 317         }
 318         else if (IsEqualIID(riid, &IID_IDataObject))
 319         { pObj = (IUnknown *)IDataObject_Constructor(0,NULL,NULL,0);
 320         }
 321         else
 322         { ERR(shell,"unknown IID requested\n\tIID:\t%s\n",xriid);
 323           return(E_NOINTERFACE);
 324         }
 325
 326         if (!pObj)
 327         { return(E_OUTOFMEMORY);
 328         }
 329
 330         hres = pObj->lpvtbl->fnQueryInterface(pObj,riid, ppObject);
 331         pObj->lpvtbl->fnRelease(pObj);
 332         TRACE(shell,"-- Object created: (%p)->%p\n",this,*ppObject);
 333
 334         return hres;
 335 }
 336 /******************************************************************************
 337  * IClassFactory_LockServer
 338  */
 339 static HRESULT WINAPI IClassFactory_fnLockServer(LPCLASSFACTORY iface, BOOL32 fLock)
 340 {
 341         ICOM_THIS(IClassFactory,iface);
 342         TRACE(shell,"%p->(0x%x), not implemented\n",this, fLock);
 343         return E_NOTIMPL;
 344 }
 345
 346 static ICOM_VTABLE(IClassFactory) clfvt =
 347 {
 348   {
 349     IClassFactory_fnQueryInterface,
 350     IClassFactory_fnAddRef,
 351     IClassFactory_fnRelease
 352   },
 353   IClassFactory_fnCreateInstance,
 354   IClassFactory_fnLockServer
 355 };