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 "config.h"
  20
  21 #include <stdarg.h>
  22 #include <stdio.h>
  23
  24 #define COBJMACROS
  25
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "winuser.h"
  29 #include "ole2.h"
  30
  31 #include "wine/debug.h"
  32
  33 #include "mshtml_private.h"
  34
  35 WINE_DEFAULT_DEBUG_CHANNEL(mshtml);
  36
  37 #define CONPOINT(x) ((IConnectionPoint*) &(x)->lpConnectionPointVtbl);
  38
  39 void call_property_onchanged(ConnectionPoint *This, DISPID dispid)
  40 {
  41     DWORD i;
  42
  43     for(i=0; i<This->sinks_size; i++) {
  44         if(This->sinks[i].propnotif)
  45             IPropertyNotifySink_OnChanged(This->sinks[i].propnotif, dispid);
  46     }
  47 }
  48
  49 #define CONPOINT_THIS(iface) DEFINE_THIS(ConnectionPoint, ConnectionPoint, iface)
  50
  51 static HRESULT WINAPI ConnectionPoint_QueryInterface(IConnectionPoint *iface,
  52                                                      REFIID riid, LPVOID *ppv)
  53 {
  54     ConnectionPoint *This = CONPOINT_THIS(iface);
  55
  56     *ppv = NULL;
  57
  58     if(IsEqualGUID(&IID_IUnknown, riid)) {
  59         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
  60         *ppv = CONPOINT(This);
  61     }else if(IsEqualGUID(&IID_IConnectionPoint, riid)) {
  62         TRACE("(%p)->(IID_IConnectionPoint %p)\n", This, ppv);
  63         *ppv = CONPOINT(This);
  64     }
  65
  66     if(*ppv) {
  67         IUnknown_AddRef((IUnknown*)*ppv);
  68         return S_OK;
  69     }
  70
  71     WARN("Unsupported interface %s\n", debugstr_guid(riid));
  72     return E_NOINTERFACE;
  73 }
  74
  75 static ULONG WINAPI ConnectionPoint_AddRef(IConnectionPoint *iface)
  76 {
  77     ConnectionPoint *This = CONPOINT_THIS(iface);
  78     return IConnectionPointContainer_AddRef(This->container);
  79 }
  80
  81 static ULONG WINAPI ConnectionPoint_Release(IConnectionPoint *iface)
  82 {
  83     ConnectionPoint *This = CONPOINT_THIS(iface);
  84     return IConnectionPointContainer_Release(This->container);
  85 }
  86
  87 static HRESULT WINAPI ConnectionPoint_GetConnectionInterface(IConnectionPoint *iface, IID *pIID)
  88 {
  89     ConnectionPoint *This = CONPOINT_THIS(iface);
  90
  91     TRACE("(%p)->(%p)\n", This, pIID);
  92
  93     if(!pIID)
  94         return E_POINTER;
  95
  96     memcpy(pIID, &This->iid, sizeof(IID));
  97     return S_OK;
  98 }
  99
 100 static HRESULT WINAPI ConnectionPoint_GetConnectionPointContainer(IConnectionPoint *iface,
 101         IConnectionPointContainer **ppCPC)
 102 {
 103     ConnectionPoint *This = CONPOINT_THIS(iface);
 104
 105     TRACE("(%p)->(%p)\n", This, ppCPC);
 106
 107     if(!ppCPC)
 108         return E_POINTER;
 109
 110     *ppCPC = This->container;
 111     IConnectionPointContainer_AddRef(*ppCPC);
 112     return S_OK;
 113 }
 114
 115 static HRESULT WINAPI ConnectionPoint_Advise(IConnectionPoint *iface, IUnknown *pUnkSink,
 116                                              DWORD *pdwCookie)
 117 {
 118     ConnectionPoint *This = CONPOINT_THIS(iface);
 119     IUnknown *sink;
 120     DWORD i;
 121     HRESULT hres;
 122
 123     TRACE("(%p)->(%p %p)\n", This, pUnkSink, pdwCookie);
 124
 125     hres = IUnknown_QueryInterface(pUnkSink, &This->iid, (void**)&sink);
 126     if(FAILED(hres) && !IsEqualGUID(&IID_IPropertyNotifySink, &This->iid))
 127         hres = IUnknown_QueryInterface(pUnkSink, &IID_IDispatch, (void**)&sink);
 128     if(FAILED(hres))
 129         return CONNECT_E_CANNOTCONNECT;
 130
 131     if(This->sinks) {
 132         for(i=0; i<This->sinks_size; i++) {
 133             if(!This->sinks[i].unk)
 134                 break;
 135         }
 136
 137         if(i == This->sinks_size)
 138             This->sinks = mshtml_realloc(This->sinks,(++This->sinks_size)*sizeof(*This->sinks));
 139     }else {
 140         This->sinks = mshtml_alloc(sizeof(*This->sinks));
 141         This->sinks_size = 1;
 142         i = 0;
 143     }
 144
 145     This->sinks[i].unk = sink;
 146     *pdwCookie = i+1;
 147
 148     return S_OK;
 149 }
 150
 151 static HRESULT WINAPI ConnectionPoint_Unadvise(IConnectionPoint *iface, DWORD dwCookie)
 152 {
 153     ConnectionPoint *This = CONPOINT_THIS(iface);
 154     TRACE("(%p)->(%d)\n", This, dwCookie);
 155
 156     if(!dwCookie || dwCookie > This->sinks_size || !This->sinks[dwCookie-1].unk)
 157         return CONNECT_E_NOCONNECTION;
 158
 159     IUnknown_Release(This->sinks[dwCookie-1].unk);
 160     This->sinks[dwCookie-1].unk = NULL;
 161
 162     return S_OK;
 163 }
 164
 165 static HRESULT WINAPI ConnectionPoint_EnumConnections(IConnectionPoint *iface,
 166                                                       IEnumConnections **ppEnum)
 167 {
 168     ConnectionPoint *This = CONPOINT_THIS(iface);
 169     FIXME("(%p)->(%p)\n", This, ppEnum);
 170     return E_NOTIMPL;
 171 }
 172
 173 #undef CONPOINT_THIS
 174
 175 static const IConnectionPointVtbl ConnectionPointVtbl =
 176 {
 177     ConnectionPoint_QueryInterface,
 178     ConnectionPoint_AddRef,
 179     ConnectionPoint_Release,
 180     ConnectionPoint_GetConnectionInterface,
 181     ConnectionPoint_GetConnectionPointContainer,
 182     ConnectionPoint_Advise,
 183     ConnectionPoint_Unadvise,
 184     ConnectionPoint_EnumConnections
 185 };
 186
 187 void ConnectionPoint_Init(ConnectionPoint *cp, IConnectionPointContainer *container,
 188         REFIID riid, ConnectionPoint *prev)
 189 {
 190     cp->lpConnectionPointVtbl = &ConnectionPointVtbl;
 191     cp->container = container;
 192     cp->sinks = NULL;
 193     cp->sinks_size = 0;
 194     cp->iid = *riid;
 195     cp->next = NULL;
 196
 197     if(prev)
 198         prev->next = cp;
 199 }
 200
 201 static void ConnectionPoint_Destroy(ConnectionPoint *This)
 202 {
 203     int i;
 204
 205     for(i=0; i<This->sinks_size; i++) {
 206         if(This->sinks[i].unk)
 207             IUnknown_Release(This->sinks[i].unk);
 208     }
 209
 210     mshtml_free(This->sinks);
 211 }
 212
 213 #define CONPTCONT_THIS(iface) DEFINE_THIS(ConnectionPointContainer, ConnectionPointContainer, iface)
 214
 215 static HRESULT WINAPI ConnectionPointContainer_QueryInterface(IConnectionPointContainer *iface,
 216                                                               REFIID riid, void **ppv)
 217 {
 218     ConnectionPointContainer *This = CONPTCONT_THIS(iface);
 219     return IUnknown_QueryInterface(This->outer, riid, ppv);
 220 }
 221
 222 static ULONG WINAPI ConnectionPointContainer_AddRef(IConnectionPointContainer *iface)
 223 {
 224     ConnectionPointContainer *This = CONPTCONT_THIS(iface);
 225     return IUnknown_AddRef(This->outer);
 226 }
 227
 228 static ULONG WINAPI ConnectionPointContainer_Release(IConnectionPointContainer *iface)
 229 {
 230     ConnectionPointContainer *This = CONPTCONT_THIS(iface);
 231     return IUnknown_Release(This->outer);
 232 }
 233
 234 static HRESULT WINAPI ConnectionPointContainer_EnumConnectionPoints(IConnectionPointContainer *iface,
 235         IEnumConnectionPoints **ppEnum)
 236 {
 237     ConnectionPointContainer *This = CONPTCONT_THIS(iface);
 238     FIXME("(%p)->(%p)\n", This, ppEnum);
 239     return E_NOTIMPL;
 240 }
 241
 242 static HRESULT WINAPI ConnectionPointContainer_FindConnectionPoint(IConnectionPointContainer *iface,
 243         REFIID riid, IConnectionPoint **ppCP)
 244 {
 245     ConnectionPointContainer *This = CONPTCONT_THIS(iface);
 246     ConnectionPoint *iter;
 247
 248     TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppCP);
 249
 250     *ppCP = NULL;
 251
 252     for(iter = This->cp_list; iter; iter = iter->next) {
 253         if(IsEqualGUID(&iter->iid, riid))
 254             *ppCP = CONPOINT(iter);
 255     }
 256
 257     if(*ppCP) {
 258         IConnectionPoint_AddRef(*ppCP);
 259         return S_OK;
 260     }
 261
 262     FIXME("unsupported riid %s\n", debugstr_guid(riid));
 263     return CONNECT_E_NOCONNECTION;
 264 }
 265
 266 static const IConnectionPointContainerVtbl ConnectionPointContainerVtbl = {
 267     ConnectionPointContainer_QueryInterface,
 268     ConnectionPointContainer_AddRef,
 269     ConnectionPointContainer_Release,
 270     ConnectionPointContainer_EnumConnectionPoints,
 271     ConnectionPointContainer_FindConnectionPoint
 272 };
 273
 274 #undef CONPTCONT_THIS
 275
 276 void ConnectionPointContainer_Init(ConnectionPointContainer *This, ConnectionPoint *cp_list,
 277         IUnknown *outer)
 278 {
 279     This->lpConnectionPointContainerVtbl = &ConnectionPointContainerVtbl;
 280     This->cp_list = cp_list;
 281     This->outer = outer;
 282 }
 283
 284 void ConnectionPointContainer_Destroy(ConnectionPointContainer *This)
 285 {
 286     ConnectionPoint *iter = This->cp_list;
 287
 288     while(iter) {
 289         ConnectionPoint_Destroy(iter);
 290         iter = iter->next;
 291     }
 292 }