dlls/msxml3/factory.c

   1 /*
   2  *    MSXML Class Factory
   3  *
   4  * Copyright 2002 Lionel Ulmer
   5  * Copyright 2005 Mike McCormack
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #define COBJMACROS
  23
  24 #include <stdarg.h>
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winuser.h"
  28 #include "ole2.h"
  29 #include "uuids.h"
  30 #include "msxml.h"
  31 #include "xmldom.h"
  32
  33 #include "wine/debug.h"
  34
  35 #include "msxml_private.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(msxml);
  38
  39 typedef HRESULT (*fnCreateInstance)(IUnknown *pUnkOuter, LPVOID *ppObj);
  40
  41 /******************************************************************************
  42  * MSXML ClassFactory
  43  */
  44 typedef struct _xmlcf
  45 {
  46     const struct IClassFactoryVtbl *lpVtbl;
  47     fnCreateInstance pfnCreateInstance;
  48 } xmlcf;
  49
  50 static inline xmlcf *impl_from_IClassFactory( IClassFactory *iface )
  51 {
  52     return (xmlcf *)((char*)iface - FIELD_OFFSET(xmlcf, lpVtbl));
  53 }
  54
  55 static HRESULT WINAPI xmlcf_QueryInterface(
  56     IClassFactory *iface,
  57     REFIID riid,
  58     LPVOID *ppobj )
  59 {
  60     if (IsEqualGUID(riid, &IID_IUnknown) ||
  61         IsEqualGUID(riid, &IID_IClassFactory))
  62     {
  63         IClassFactory_AddRef( iface );
  64         *ppobj = iface;
  65         return S_OK;
  66     }
  67
  68     return E_NOINTERFACE;
  69 }
  70
  71 static ULONG WINAPI xmlcf_AddRef(
  72     IClassFactory *iface )
  73 {
  74     return 2;
  75 }
  76
  77 static ULONG WINAPI xmlcf_Release(
  78     IClassFactory *iface )
  79 {
  80     return 1;
  81 }
  82
  83 static HRESULT WINAPI xmlcf_CreateInstance(
  84     IClassFactory *iface,
  85     LPUNKNOWN pOuter,
  86     REFIID riid,
  87     LPVOID *ppobj )
  88 {
  89     xmlcf *This = impl_from_IClassFactory( iface );
  90     HRESULT r;
  91     IUnknown *punk;
  92
  93     TRACE("%p %s %p\n", pOuter, debugstr_guid(riid), ppobj );
  94
  95     *ppobj = NULL;
  96
  97     if (pOuter)
  98         return CLASS_E_NOAGGREGATION;
  99
 100     r = This->pfnCreateInstance( pOuter, (LPVOID*) &punk );
 101     if (FAILED(r))
 102         return r;
 103
 104     r = IUnknown_QueryInterface( punk, riid, ppobj );
 105     if (FAILED(r))
 106         return r;
 107     IUnknown_Release( punk );
 108     return r;
 109 }
 110
 111 static HRESULT WINAPI xmlcf_LockServer(
 112     IClassFactory *iface,
 113     BOOL dolock)
 114 {
 115     FIXME("(%p)->(%d),stub!\n",iface,dolock);
 116     return S_OK;
 117 }
 118
 119 const struct IClassFactoryVtbl xmlcf_vtbl =
 120 {
 121     xmlcf_QueryInterface,
 122     xmlcf_AddRef,
 123     xmlcf_Release,
 124     xmlcf_CreateInstance,
 125     xmlcf_LockServer
 126 };
 127
 128 static xmlcf domdoccf = { &xmlcf_vtbl, DOMDocument_create };
 129
 130 /******************************************************************
 131  *              DllGetClassObject (MSXML3.@)
 132  */
 133 HRESULT WINAPI DllGetClassObject( REFCLSID rclsid, REFIID iid, LPVOID *ppv )
 134 {
 135     IClassFactory *cf = NULL;
 136
 137     TRACE("%s %s %p\n", debugstr_guid(rclsid), debugstr_guid(iid), ppv );
 138
 139     if( IsEqualGUID( rclsid, &CLSID_DOMDocument ) )
 140         cf = (IClassFactory*) &domdoccf.lpVtbl;
 141
 142     if ( !cf )
 143         return CLASS_E_CLASSNOTAVAILABLE;
 144
 145     return IClassFactory_QueryInterface( cf, iid, ppv );
 146 }