reactos/dll/win32/mshtml/conpoint.c

   1 /*
   2  * Copyright 2006 Jacek Caban for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include <stdarg.h>
  20
  21 #define COBJMACROS
  22
  23 #include "windef.h"
  24 #include "winbase.h"
  25 #include "winuser.h"
  26 #include "ole2.h"
  27
  28 #include "wine/debug.h"
  29
  30 #include "mshtml_private.h"
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(mshtml);
  33
  34 #define CONPOINT(x) ((IConnectionPoint*) &(x)->lpConnectionPointVtbl);
  35
  36 static const char *debugstr_cp_guid(REFIID riid)
  37 {
  38 #define X(x) \
  39     if(IsEqualGUID(riid, &x)) \
  40         return #x
  41
  42     X(IID_IPropertyNotifySink);
  43     X(DIID_HTMLDocumentEvents);
  44     X(DIID_HTMLDocumentEvents2);
  45     X(DIID_HTMLTableEvents);
  46     X(DIID_HTMLTextContainerEvents);
  47
  48 #undef X
  49
  50     return debugstr_guid(riid);
  51 }
  52
  53 void call_property_onchanged(ConnectionPoint *This, DISPID dispid)
  54 {
  55     DWORD i;
  56
  57     for(i=0; i<This->sinks_size; i++) {
  58         if(This->sinks[i].propnotif)
  59             IPropertyNotifySink_OnChanged(This->sinks[i].propnotif, dispid);
  60     }
  61 }
  62
  63 #define CONPOINT_THIS(iface) DEFINE_THIS(ConnectionPoint, ConnectionPoint, iface)
  64
  65 static HRESULT WINAPI ConnectionPoint_QueryInterface(IConnectionPoint *iface,
  66                                                      REFIID riid, LPVOID *ppv)
  67 {
  68     ConnectionPoint *This = CONPOINT_THIS(iface);
  69
  70     *ppv = NULL;
  71
  72     if(IsEqualGUID(&IID_IUnknown, riid)) {
  73         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
  74         *ppv = CONPOINT(This);
  75     }else if(IsEqualGUID(&IID_IConnectionPoint, riid)) {
  76         TRACE("(%p)->(IID_IConnectionPoint %p)\n", This, ppv);
  77         *ppv = CONPOINT(This);
  78     }
  79
  80     if(*ppv) {
  81         IUnknown_AddRef((IUnknown*)*ppv);
  82         return S_OK;
  83     }
  84
  85     WARN("Unsupported interface %s\n", debugstr_guid(riid));
  86     return E_NOINTERFACE;
  87 }
  88
  89 static ULONG WINAPI ConnectionPoint_AddRef(IConnectionPoint *iface)
  90 {
  91     ConnectionPoint *This = CONPOINT_THIS(iface);
  92     return IConnectionPointContainer_AddRef(This->container);
  93 }
  94
  95 static ULONG WINAPI ConnectionPoint_Release(IConnectionPoint *iface)
  96 {
  97     ConnectionPoint *This = CONPOINT_THIS(iface);
  98     return IConnectionPointContainer_Release(This->container);
  99 }
 100
 101 static HRESULT WINAPI ConnectionPoint_GetConnectionInterface(IConnectionPoint *iface, IID *pIID)
 102 {
 103     ConnectionPoint *This = CONPOINT_THIS(iface);
 104
 105     TRACE("(%p)->(%p)\n", This, pIID);
 106
 107     if(!pIID)
 108         return E_POINTER;
 109
 110     *pIID = *This->iid;
 111     return S_OK;
 112 }
 113
 114 static HRESULT WINAPI ConnectionPoint_GetConnectionPointContainer(IConnectionPoint *iface,
 115         IConnectionPointContainer **ppCPC)
 116 {
 117     ConnectionPoint *This = CONPOINT_THIS(iface);
 118
 119     TRACE("(%p)->(%p)\n", This, ppCPC);
 120
 121     if(!ppCPC)
 122         return E_POINTER;
 123
 124     *ppCPC = This->container;
 125     IConnectionPointContainer_AddRef(*ppCPC);
 126     return S_OK;
 127 }
 128
 129 static HRESULT WINAPI ConnectionPoint_Advise(IConnectionPoint *iface, IUnknown *pUnkSink,
 130                                              DWORD *pdwCookie)
 131 {
 132     ConnectionPoint *This = CONPOINT_THIS(iface);
 133     IUnknown *sink;
 134     DWORD i;
 135     HRESULT hres;
 136
 137     TRACE("(%p)->(%p %p)\n", This, pUnkSink, pdwCookie);
 138
 139     hres = IUnknown_QueryInterface(pUnkSink, This->iid, (void**)&sink);
 140     if(FAILED(hres) && !IsEqualGUID(&IID_IPropertyNotifySink, This->iid))
 141         hres = IUnknown_QueryInterface(pUnkSink, &IID_IDispatch, (void**)&sink);
 142     if(FAILED(hres))
 143         return CONNECT_E_CANNOTCONNECT;
 144
 145     if(This->sinks) {
 146         for(i=0; i<This->sinks_size; i++) {
 147             if(!This->sinks[i].unk)
 148                 break;
 149         }
 150
 151         if(i == This->sinks_size)
 152             This->sinks = heap_realloc(This->sinks,(++This->sinks_size)*sizeof(*This->sinks));
 153     }else {
 154         This->sinks = heap_alloc(sizeof(*This->sinks));
 155         This->sinks_size = 1;
 156         i = 0;
 157     }
 158
 159     This->sinks[i].unk = sink;
 160     *pdwCookie = i+1;
 161
 162     return S_OK;
 163 }
 164
 165 static HRESULT WINAPI ConnectionPoint_Unadvise(IConnectionPoint *iface, DWORD dwCookie)
 166 {
 167     ConnectionPoint *This = CONPOINT_THIS(iface);
 168     TRACE("(%p)->(%d)\n", This, dwCookie);
 169
 170     if(!dwCookie || dwCookie > This->sinks_size || !This->sinks[dwCookie-1].unk)
 171         return CONNECT_E_NOCONNECTION;
 172
 173     IUnknown_Release(This->sinks[dwCookie-1].unk);
 174     This->sinks[dwCookie-1].unk = NULL;
 175
 176     return S_OK;
 177 }
 178
 179 static HRESULT WINAPI ConnectionPoint_EnumConnections(IConnectionPoint *iface,
 180                                                       IEnumConnections **ppEnum)
 181 {
 182     ConnectionPoint *This = CONPOINT_THIS(iface);
 183     FIXME("(%p)->(%p)\n", This, ppEnum);
 184     return E_NOTIMPL;
 185 }
 186
 187 #undef CONPOINT_THIS
 188
 189 static const IConnectionPointVtbl ConnectionPointVtbl =
 190 {
 191     ConnectionPoint_QueryInterface,
 192     ConnectionPoint_AddRef,
 193     ConnectionPoint_Release,
 194     ConnectionPoint_GetConnectionInterface,
 195     ConnectionPoint_GetConnectionPointContainer,
 196     ConnectionPoint_Advise,
 197     ConnectionPoint_Unadvise,
 198     ConnectionPoint_EnumConnections
 199 };
 200
 201 void ConnectionPoint_Init(ConnectionPoint *cp, ConnectionPointContainer *container, REFIID riid)
 202 {
 203     cp->lpConnectionPointVtbl = &ConnectionPointVtbl;
 204     cp->container = CONPTCONT(container);
 205     cp->sinks = NULL;
 206     cp->sinks_size = 0;
 207     cp->iid = riid;
 208     cp->next = NULL;
 209
 210     cp->next = container->cp_list;
 211     container->cp_list = cp;
 212 }
 213
 214 static void ConnectionPoint_Destroy(ConnectionPoint *This)
 215 {
 216     DWORD i;
 217
 218     for(i=0; i<This->sinks_size; i++) {
 219         if(This->sinks[i].unk)
 220             IUnknown_Release(This->sinks[i].unk);
 221     }
 222
 223     heap_free(This->sinks);
 224 }
 225
 226 #define CONPTCONT_THIS(iface) DEFINE_THIS(ConnectionPointContainer, ConnectionPointContainer, iface)
 227
 228 static HRESULT WINAPI ConnectionPointContainer_QueryInterface(IConnectionPointContainer *iface,
 229                                                               REFIID riid, void **ppv)
 230 {
 231     ConnectionPointContainer *This = CONPTCONT_THIS(iface);
 232     return IUnknown_QueryInterface(This->outer, riid, ppv);
 233 }
 234
 235 static ULONG WINAPI ConnectionPointContainer_AddRef(IConnectionPointContainer *iface)
 236 {
 237     ConnectionPointContainer *This = CONPTCONT_THIS(iface);
 238     return IUnknown_AddRef(This->outer);
 239 }
 240
 241 static ULONG WINAPI ConnectionPointContainer_Release(IConnectionPointContainer *iface)
 242 {
 243     ConnectionPointContainer *This = CONPTCONT_THIS(iface);
 244     return IUnknown_Release(This->outer);
 245 }
 246
 247 static HRESULT WINAPI ConnectionPointContainer_EnumConnectionPoints(IConnectionPointContainer *iface,
 248         IEnumConnectionPoints **ppEnum)
 249 {
 250     ConnectionPointContainer *This = CONPTCONT_THIS(iface);
 251     FIXME("(%p)->(%p)\n", This, ppEnum);
 252     return E_NOTIMPL;
 253 }
 254
 255 static HRESULT WINAPI ConnectionPointContainer_FindConnectionPoint(IConnectionPointContainer *iface,
 256         REFIID riid, IConnectionPoint **ppCP)
 257 {
 258     ConnectionPointContainer *This = CONPTCONT_THIS(iface);
 259     ConnectionPoint *iter;
 260
 261     TRACE("(%p)->(%s %p)\n", This, debugstr_cp_guid(riid), ppCP);
 262
 263     *ppCP = NULL;
 264
 265     for(iter = This->cp_list; iter; iter = iter->next) {
 266         if(IsEqualGUID(iter->iid, riid))
 267             *ppCP = CONPOINT(iter);
 268     }
 269
 270     if(*ppCP) {
 271         IConnectionPoint_AddRef(*ppCP);
 272         return S_OK;
 273     }
 274
 275     FIXME("unsupported riid %s\n", debugstr_cp_guid(riid));
 276     return CONNECT_E_NOCONNECTION;
 277 }
 278
 279 static const IConnectionPointContainerVtbl ConnectionPointContainerVtbl = {
 280     ConnectionPointContainer_QueryInterface,
 281     ConnectionPointContainer_AddRef,
 282     ConnectionPointContainer_Release,
 283     ConnectionPointContainer_EnumConnectionPoints,
 284     ConnectionPointContainer_FindConnectionPoint
 285 };
 286
 287 #undef CONPTCONT_THIS
 288
 289 void ConnectionPointContainer_Init(ConnectionPointContainer *This, IUnknown *outer)
 290 {
 291     This->lpConnectionPointContainerVtbl = &ConnectionPointContainerVtbl;
 292     This->cp_list = NULL;
 293     This->outer = outer;
 294 }
 295
 296 void ConnectionPointContainer_Destroy(ConnectionPointContainer *This)
 297 {
 298     ConnectionPoint *iter = This->cp_list;
 299
 300     while(iter) {
 301         ConnectionPoint_Destroy(iter);
 302         iter = iter->next;
 303     }
 304 }