reactos/lib/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 WebBrowser 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     TRACE("(%s %p)\n", debugstr_guid(riid), ppobj);
  40
  41     if (!ppobj)
  42         return E_POINTER;
  43
  44     if(IsEqualGUID(&IID_IUnknown, riid) || IsEqualGUID(&IID_IClassFactory, riid)) {
  45         *ppobj = iface;
  46         return S_OK;
  47     }
  48
  49     WARN("Not supported interface %s\n", debugstr_guid(riid));
  50
  51     *ppobj = NULL;
  52     return E_NOINTERFACE;
  53 }
  54
  55 /************************************************************************
  56  * WBCF_AddRef (IUnknown)
  57  */
  58 static ULONG WINAPI WBCF_AddRef(LPCLASSFACTORY iface)
  59 {
  60     SHDOCVW_LockModule();
  61
  62     return 2; /* non-heap based object */
  63 }
  64
  65 /************************************************************************
  66  * WBCF_Release (IUnknown)
  67  */
  68 static ULONG WINAPI WBCF_Release(LPCLASSFACTORY iface)
  69 {
  70     SHDOCVW_UnlockModule();
  71
  72     return 1; /* non-heap based object */
  73 }
  74
  75 /************************************************************************
  76  * WBCF_CreateInstance (IClassFactory)
  77  */
  78 static HRESULT WINAPI WBCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter,
  79                                           REFIID riid, LPVOID *ppobj)
  80 {
  81     return WebBrowser_Create(pOuter, riid, ppobj);
  82 }
  83
  84 /************************************************************************
  85  * WBCF_LockServer (IClassFactory)
  86  */
  87 static HRESULT WINAPI WBCF_LockServer(LPCLASSFACTORY iface, BOOL dolock)
  88 {
  89     TRACE("(%d)\n", dolock);
  90
  91     if (dolock)
  92         SHDOCVW_LockModule();
  93     else
  94         SHDOCVW_UnlockModule();
  95
  96     return S_OK;
  97 }
  98
  99 static const IClassFactoryVtbl WBCF_Vtbl =
 100 {
 101     WBCF_QueryInterface,
 102     WBCF_AddRef,
 103     WBCF_Release,
 104     WBCF_CreateInstance,
 105     WBCF_LockServer
 106 };
 107
 108 IClassFactoryImpl SHDOCVW_ClassFactory = {&WBCF_Vtbl};