reactos/lib/shdocvw/classinfo.c

   1 /*
   2  * Implementation of IProvideClassInfo interfaces for WebBrowser control
   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 <stdarg.h>
  22 #include <string.h>
  23
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "shdocvw.h"
  27 #include "wine/debug.h"
  28
  29 WINE_DEFAULT_DEBUG_CHANNEL(shdocvw);
  30
  31 /**********************************************************************
  32  * Implement the IProvideClassInfo2 interface
  33  */
  34
  35 #define CLASSINFO_THIS(iface) DEFINE_THIS(WebBrowser, ProvideClassInfo, iface)
  36
  37 static HRESULT WINAPI ProvideClassInfo_QueryInterface(IProvideClassInfo2 *iface,
  38         REFIID riid, LPVOID *ppobj)
  39 {
  40     WebBrowser *This = CLASSINFO_THIS(iface);
  41     return IWebBrowser_QueryInterface(WEBBROWSER(This), riid, ppobj);
  42 }
  43
  44 static ULONG WINAPI ProvideClassInfo_AddRef(IProvideClassInfo2 *iface)
  45 {
  46     WebBrowser *This = CLASSINFO_THIS(iface);
  47     return IWebBrowser_AddRef(WEBBROWSER(This));
  48 }
  49
  50 static ULONG WINAPI ProvideClassInfo_Release(IProvideClassInfo2 *iface)
  51 {
  52     WebBrowser *This = CLASSINFO_THIS(iface);
  53     return IWebBrowser_Release(WEBBROWSER(This));
  54 }
  55
  56 static HRESULT WINAPI ProvideClassInfo_GetClassInfo(IProvideClassInfo2 *iface, LPTYPEINFO *ppTI)
  57 {
  58     WebBrowser *This = CLASSINFO_THIS(iface);
  59     FIXME("(%p)->(%p)\n", This, ppTI);
  60     return E_NOTIMPL;
  61 }
  62
  63 /* Get the IID for generic default event callbacks.  This IID will
  64  * in theory be used to later query for an IConnectionPoint to connect
  65  * an event sink (callback implementation in the OLE control site)
  66  * to this control.
  67 */
  68 static HRESULT WINAPI ProvideClassInfo_GetGUID(IProvideClassInfo2 *iface,
  69         DWORD dwGuidKind, GUID *pGUID)
  70 {
  71     WebBrowser *This = CLASSINFO_THIS(iface);
  72
  73     FIXME("(%p)->(%ld %p)\n", This, dwGuidKind, pGUID);
  74
  75     if (dwGuidKind != GUIDKIND_DEFAULT_SOURCE_DISP_IID)
  76     {
  77         FIXME ("Requested unsupported GUID type: %ld\n", dwGuidKind);
  78         return E_FAIL;  /* Is there a better return type here? */
  79     }
  80
  81     /* FIXME: Returning IPropertyNotifySink interface, but should really
  82      * return a more generic event set (???) dispinterface.
  83      * However, this hack, allows a control site to return with success
  84      * (MFC's COleControlSite falls back to older IProvideClassInfo interface
  85      * if GetGUID() fails to return a non-NULL GUID).
  86      */
  87     memcpy(pGUID, &IID_IPropertyNotifySink, sizeof(GUID));
  88     FIXME("Wrongly returning IPropertyNotifySink interface %s\n",
  89           debugstr_guid(pGUID));
  90
  91     return S_OK;
  92 }
  93
  94 #undef CLASSINFO_THIS
  95
  96 static const IProvideClassInfo2Vtbl ProvideClassInfoVtbl =
  97 {
  98     ProvideClassInfo_QueryInterface,
  99     ProvideClassInfo_AddRef,
 100     ProvideClassInfo_Release,
 101     ProvideClassInfo_GetClassInfo,
 102     ProvideClassInfo_GetGUID
 103 };
 104
 105 void WebBrowser_ClassInfo_Init(WebBrowser *This)
 106 {
 107     This->lpProvideClassInfoVtbl = &ProvideClassInfoVtbl;
 108 }