dlls/shdocvw/factory.c

   1 /*
   2  * Implementation of class factory for IE Web Browser
   3  *
   4  * Copyright 2001 John R. Sheets (for CodeWeavers)
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include <string.h>
  22 #include "wine/debug.h"
  23 #include "shdocvw.h"
  24
  25 WINE_DEFAULT_DEBUG_CHANNEL(shdocvw);
  26
  27 /**********************************************************************
  28  * Implement the IWebBrowser class factory
  29  *
  30  * (Based on implementation in ddraw/main.c)
  31  */
  32
  33 /**********************************************************************
  34  * WBCF_QueryInterface (IUnknown)
  35  */
  36 static HRESULT WINAPI WBCF_QueryInterface(LPCLASSFACTORY iface,
  37                                           REFIID riid, LPVOID *ppobj)
  38 {
  39     FIXME("- no interface\n\tIID:\t%s\n", debugstr_guid(riid));
  40
  41     if (ppobj == NULL) return E_POINTER;
  42
  43     return E_NOINTERFACE;
  44 }
  45
  46 /************************************************************************
  47  * WBCF_AddRef (IUnknown)
  48  */
  49 static ULONG WINAPI WBCF_AddRef(LPCLASSFACTORY iface)
  50 {
  51     SHDOCVW_LockModule();
  52
  53     return 2; /* non-heap based object */
  54 }
  55
  56 /************************************************************************
  57  * WBCF_Release (IUnknown)
  58  */
  59 static ULONG WINAPI WBCF_Release(LPCLASSFACTORY iface)
  60 {
  61     SHDOCVW_UnlockModule();
  62
  63     return 1; /* non-heap based object */
  64 }
  65
  66 /************************************************************************
  67  * WBCF_CreateInstance (IClassFactory)
  68  */
  69 static HRESULT WINAPI WBCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter,
  70                                           REFIID riid, LPVOID *ppobj)
  71 {
  72     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
  73
  74     /* Don't support aggregation (yet?) */
  75     if (pOuter)
  76     {
  77         TRACE ("Failed attempt to aggregate IWebBrowser\n");
  78         return CLASS_E_NOAGGREGATION;
  79     }
  80
  81     TRACE("(%p)->(%p,%s,%p)\n", This, pOuter, debugstr_guid(riid), ppobj);
  82
  83     if ((IsEqualGUID (&IID_IOleObject, riid)))
  84     {
  85         TRACE ("Instantiating IOleObject component\n");
  86         *ppobj = (LPVOID)&SHDOCVW_OleObject;
  87
  88         return S_OK;
  89     }
  90     return CLASS_E_CLASSNOTAVAILABLE;
  91 }
  92
  93 /************************************************************************
  94  * WBCF_LockServer (IClassFactory)
  95  */
  96 static HRESULT WINAPI WBCF_LockServer(LPCLASSFACTORY iface, BOOL dolock)
  97 {
  98     TRACE("(%d)\n", dolock);
  99
 100     if (dolock)
 101             SHDOCVW_LockModule();
 102     else
 103             SHDOCVW_UnlockModule();
 104
 105     return S_OK;
 106 }
 107
 108 static IClassFactoryVtbl WBCF_Vtbl =
 109 {
 110     WBCF_QueryInterface,
 111     WBCF_AddRef,
 112     WBCF_Release,
 113     WBCF_CreateInstance,
 114     WBCF_LockServer
 115 };
 116
 117 IClassFactoryImpl SHDOCVW_ClassFactory = {&WBCF_Vtbl};