dlls/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(CONPTCONT(This->container));
  93 }
  94
  95 static ULONG WINAPI ConnectionPoint_Release(IConnectionPoint *iface)
  96 {
  97     ConnectionPoint *This = CONPOINT_THIS(iface);
  98     return IConnectionPointContainer_Release(CONPTCONT(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 = CONPTCONT(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     if(!i && This->data && This->data->on_advise)
 163         This->data->on_advise(This->container->outer, This->data);
 164
 165     return S_OK;
 166 }
 167
 168 static HRESULT WINAPI ConnectionPoint_Unadvise(IConnectionPoint *iface, DWORD dwCookie)
 169 {
 170     ConnectionPoint *This = CONPOINT_THIS(iface);
 171     TRACE("(%p)->(%d)\n", This, dwCookie);
 172
 173     if(!dwCookie || dwCookie > This->sinks_size || !This->sinks[dwCookie-1].unk)
 174         return CONNECT_E_NOCONNECTION;
 175
 176     IUnknown_Release(This->sinks[dwCookie-1].unk);
 177     This->sinks[dwCookie-1].unk = NULL;
 178
 179     return S_OK;
 180 }
 181
 182 static HRESULT WINAPI ConnectionPoint_EnumConnections(IConnectionPoint *iface,
 183                                                       IEnumConnections **ppEnum)
 184 {
 185     ConnectionPoint *This = CONPOINT_THIS(iface);
 186     FIXME("(%p)->(%p)\n", This, ppEnum);
 187     return E_NOTIMPL;
 188 }
 189
 190 #undef CONPOINT_THIS
 191
 192 static const IConnectionPointVtbl ConnectionPointVtbl =
 193 {
 194     ConnectionPoint_QueryInterface,
 195     ConnectionPoint_AddRef,
 196     ConnectionPoint_Release,
 197     ConnectionPoint_GetConnectionInterface,
 198     ConnectionPoint_GetConnectionPointContainer,
 199     ConnectionPoint_Advise,
 200     ConnectionPoint_Unadvise,
 201     ConnectionPoint_EnumConnections
 202 };
 203
 204 void ConnectionPoint_Init(ConnectionPoint *cp, ConnectionPointContainer *container, REFIID riid, cp_static_data_t *data)
 205 {
 206     cp->lpConnectionPointVtbl = &ConnectionPointVtbl;
 207     cp->container = container;
 208     cp->sinks = NULL;
 209     cp->sinks_size = 0;
 210     cp->iid = riid;
 211     cp->data = data;
 212
 213     cp->next = container->cp_list;
 214     container->cp_list = cp;
 215 }
 216
 217 static void ConnectionPoint_Destroy(ConnectionPoint *This)
 218 {
 219     DWORD i;
 220
 221     for(i=0; i<This->sinks_size; i++) {
 222         if(This->sinks[i].unk)
 223             IUnknown_Release(This->sinks[i].unk);
 224     }
 225
 226     heap_free(This->sinks);
 227 }
 228
 229 #define CONPTCONT_THIS(iface) DEFINE_THIS(ConnectionPointContainer, ConnectionPointContainer, iface)
 230
 231 static HRESULT WINAPI ConnectionPointContainer_QueryInterface(IConnectionPointContainer *iface,
 232                                                               REFIID riid, void **ppv)
 233 {
 234     ConnectionPointContainer *This = CONPTCONT_THIS(iface);
 235     return IUnknown_QueryInterface(This->outer, riid, ppv);
 236 }
 237
 238 static ULONG WINAPI ConnectionPointContainer_AddRef(IConnectionPointContainer *iface)
 239 {
 240     ConnectionPointContainer *This = CONPTCONT_THIS(iface);
 241     return IUnknown_AddRef(This->outer);
 242 }
 243
 244 static ULONG WINAPI ConnectionPointContainer_Release(IConnectionPointContainer *iface)
 245 {
 246     ConnectionPointContainer *This = CONPTCONT_THIS(iface);
 247     return IUnknown_Release(This->outer);
 248 }
 249
 250 static HRESULT WINAPI ConnectionPointContainer_EnumConnectionPoints(IConnectionPointContainer *iface,
 251         IEnumConnectionPoints **ppEnum)
 252 {
 253     ConnectionPointContainer *This = CONPTCONT_THIS(iface);
 254     FIXME("(%p)->(%p)\n", This, ppEnum);
 255     return E_NOTIMPL;
 256 }
 257
 258 static HRESULT WINAPI ConnectionPointContainer_FindConnectionPoint(IConnectionPointContainer *iface,
 259         REFIID riid, IConnectionPoint **ppCP)
 260 {
 261     ConnectionPointContainer *This = CONPTCONT_THIS(iface);
 262     ConnectionPoint *iter;
 263
 264     TRACE("(%p)->(%s %p)\n", This, debugstr_cp_guid(riid), ppCP);
 265
 266     if(This->forward_container)
 267         return IConnectionPointContainer_FindConnectionPoint(CONPTCONT(This), riid, ppCP);
 268
 269     *ppCP = NULL;
 270
 271     for(iter = This->cp_list; iter; iter = iter->next) {
 272         if(IsEqualGUID(iter->iid, riid))
 273             *ppCP = CONPOINT(iter);
 274     }
 275
 276     if(*ppCP) {
 277         IConnectionPoint_AddRef(*ppCP);
 278         return S_OK;
 279     }
 280
 281     FIXME("unsupported riid %s\n", debugstr_cp_guid(riid));
 282     return CONNECT_E_NOCONNECTION;
 283 }
 284
 285 static const IConnectionPointContainerVtbl ConnectionPointContainerVtbl = {
 286     ConnectionPointContainer_QueryInterface,
 287     ConnectionPointContainer_AddRef,
 288     ConnectionPointContainer_Release,
 289     ConnectionPointContainer_EnumConnectionPoints,
 290     ConnectionPointContainer_FindConnectionPoint
 291 };
 292
 293 #undef CONPTCONT_THIS
 294
 295 void ConnectionPointContainer_Init(ConnectionPointContainer *This, IUnknown *outer)
 296 {
 297     This->lpConnectionPointContainerVtbl = &ConnectionPointContainerVtbl;
 298     This->cp_list = NULL;
 299     This->outer = outer;
 300 }
 301
 302 void ConnectionPointContainer_Destroy(ConnectionPointContainer *This)
 303 {
 304     ConnectionPoint *iter = This->cp_list;
 305
 306     while(iter) {
 307         ConnectionPoint_Destroy(iter);
 308         iter = iter->next;
 309     }
 310 }