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 struct ConnectionPoint {
  40     const IConnectionPointVtbl *lpConnectionPointVtbl;
  41
  42     HTMLDocument *doc;
  43
  44     union {
  45         IUnknown *unk;
  46         IDispatch *disp;
  47         IPropertyNotifySink *propnotif;
  48     } *sinks;
  49     DWORD sinks_size;
  50
  51     IID iid;
  52 };
  53
  54 void call_property_onchanged(ConnectionPoint *This, DISPID dispid)
  55 {
  56     DWORD i;
  57
  58     for(i=0; i<This->sinks_size; i++) {
  59         if(This->sinks[i].propnotif)
  60             IPropertyNotifySink_OnChanged(This->sinks[i].propnotif, dispid);
  61     }
  62 }
  63
  64 #define CONPOINT_THIS(iface) DEFINE_THIS(ConnectionPoint, ConnectionPoint, iface)
  65
  66 static HRESULT WINAPI ConnectionPoint_QueryInterface(IConnectionPoint *iface,
  67                                                      REFIID riid, LPVOID *ppv)
  68 {
  69     ConnectionPoint *This = CONPOINT_THIS(iface);
  70
  71     *ppv = NULL;
  72
  73     if(IsEqualGUID(&IID_IUnknown, riid)) {
  74         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
  75         *ppv = CONPOINT(This);
  76     }else if(IsEqualGUID(&IID_IConnectionPoint, riid)) {
  77         TRACE("(%p)->(IID_IConnectionPoint %p)\n", This, ppv);
  78         *ppv = CONPOINT(This);
  79     }
  80
  81     if(*ppv) {
  82         IUnknown_AddRef((IUnknown*)*ppv);
  83         return S_OK;
  84     }
  85
  86     WARN("Unsupported interface %s\n", debugstr_guid(riid));
  87     return E_NOINTERFACE;
  88 }
  89
  90 static ULONG WINAPI ConnectionPoint_AddRef(IConnectionPoint *iface)
  91 {
  92     ConnectionPoint *This = CONPOINT_THIS(iface);
  93     return IHTMLDocument2_AddRef(HTMLDOC(This->doc));
  94 }
  95
  96 static ULONG WINAPI ConnectionPoint_Release(IConnectionPoint *iface)
  97 {
  98     ConnectionPoint *This = CONPOINT_THIS(iface);
  99     return IHTMLDocument2_Release(HTMLDOC(This->doc));
 100 }
 101
 102 static HRESULT WINAPI ConnectionPoint_GetConnectionInterface(IConnectionPoint *iface, IID *pIID)
 103 {
 104     ConnectionPoint *This = CONPOINT_THIS(iface);
 105
 106     TRACE("(%p)->(%p)\n", This, pIID);
 107
 108     if(!pIID)
 109         return E_POINTER;
 110
 111     memcpy(pIID, &This->iid, sizeof(IID));
 112     return S_OK;
 113 }
 114
 115 static HRESULT WINAPI ConnectionPoint_GetConnectionPointContainer(IConnectionPoint *iface,
 116         IConnectionPointContainer **ppCPC)
 117 {
 118     ConnectionPoint *This = CONPOINT_THIS(iface);
 119
 120     TRACE("(%p)->(%p)\n", This, ppCPC);
 121
 122     if(!ppCPC)
 123         return E_POINTER;
 124
 125     *ppCPC = CONPTCONT(This->doc);
 126     IConnectionPointContainer_AddRef(*ppCPC);
 127     return S_OK;
 128 }
 129
 130 static HRESULT WINAPI ConnectionPoint_Advise(IConnectionPoint *iface, IUnknown *pUnkSink,
 131                                              DWORD *pdwCookie)
 132 {
 133     ConnectionPoint *This = CONPOINT_THIS(iface);
 134     IUnknown *sink;
 135     DWORD i;
 136     HRESULT hres;
 137
 138     TRACE("(%p)->(%p %p)\n", This, pUnkSink, pdwCookie);
 139
 140     hres = IUnknown_QueryInterface(pUnkSink, &This->iid, (void**)&sink);
 141     if(FAILED(hres) && !IsEqualGUID(&IID_IPropertyNotifySink, &This->iid))
 142         hres = IUnknown_QueryInterface(pUnkSink, &IID_IDispatch, (void**)&sink);
 143     if(FAILED(hres))
 144         return CONNECT_E_CANNOTCONNECT;
 145
 146     if(This->sinks) {
 147         for(i=0; i<This->sinks_size; i++) {
 148             if(!This->sinks[i].unk)
 149                 break;
 150         }
 151
 152         if(i == This->sinks_size)
 153             This->sinks = mshtml_realloc(This->sinks,(++This->sinks_size)*sizeof(*This->sinks));
 154     }else {
 155         This->sinks = mshtml_alloc(sizeof(*This->sinks));
 156         This->sinks_size = 1;
 157         i = 0;
 158     }
 159
 160     This->sinks[i].unk = sink;
 161     *pdwCookie = i+1;
 162
 163     return S_OK;
 164 }
 165
 166 static HRESULT WINAPI ConnectionPoint_Unadvise(IConnectionPoint *iface, DWORD dwCookie)
 167 {
 168     ConnectionPoint *This = CONPOINT_THIS(iface);
 169     TRACE("(%p)->(%ld)\n", This, dwCookie);
 170
 171     if(!dwCookie || dwCookie > This->sinks_size || !This->sinks[dwCookie-1].unk)
 172         return CONNECT_E_NOCONNECTION;
 173
 174     IUnknown_Release(This->sinks[dwCookie-1].unk);
 175     This->sinks[dwCookie-1].unk = NULL;
 176
 177     return S_OK;
 178 }
 179
 180 static HRESULT WINAPI ConnectionPoint_EnumConnections(IConnectionPoint *iface,
 181                                                       IEnumConnections **ppEnum)
 182 {
 183     ConnectionPoint *This = CONPOINT_THIS(iface);
 184     FIXME("(%p)->(%p)\n", This, ppEnum);
 185     return E_NOTIMPL;
 186 }
 187
 188 #undef CONPOINT_THIS
 189
 190 static const IConnectionPointVtbl ConnectionPointVtbl =
 191 {
 192     ConnectionPoint_QueryInterface,
 193     ConnectionPoint_AddRef,
 194     ConnectionPoint_Release,
 195     ConnectionPoint_GetConnectionInterface,
 196     ConnectionPoint_GetConnectionPointContainer,
 197     ConnectionPoint_Advise,
 198     ConnectionPoint_Unadvise,
 199     ConnectionPoint_EnumConnections
 200 };
 201
 202 static void ConnectionPoint_Create(HTMLDocument *doc, REFIID riid, ConnectionPoint **cp)
 203 {
 204     ConnectionPoint *ret = mshtml_alloc(sizeof(ConnectionPoint));
 205
 206     ret->lpConnectionPointVtbl = &ConnectionPointVtbl;
 207     ret->doc = doc;
 208     ret->sinks = NULL;
 209     ret->sinks_size = 0;
 210     memcpy(&ret->iid, riid, sizeof(IID));
 211
 212     *cp = ret;
 213 }
 214
 215 static void ConnectionPoint_Destroy(ConnectionPoint *This)
 216 {
 217     int i;
 218
 219     for(i=0; i<This->sinks_size; i++) {
 220         if(This->sinks[i].unk)
 221             IUnknown_Release(This->sinks[i].unk);
 222     }
 223
 224     mshtml_free(This->sinks);
 225     mshtml_free(This);
 226 }
 227
 228 #define CONPTCONT_THIS(iface) DEFINE_THIS(HTMLDocument, ConnectionPointContainer, iface)
 229
 230 static HRESULT WINAPI ConnectionPointContainer_QueryInterface(IConnectionPointContainer *iface,
 231                                                               REFIID riid, void **ppv)
 232 {
 233     HTMLDocument *This = CONPTCONT_THIS(iface);
 234     return IHTMLDocument2_QueryInterface(HTMLDOC(This), riid, ppv);
 235 }
 236
 237 static ULONG WINAPI ConnectionPointContainer_AddRef(IConnectionPointContainer *iface)
 238 {
 239     HTMLDocument *This = CONPTCONT_THIS(iface);
 240     return IHTMLDocument2_AddRef(HTMLDOC(This));
 241 }
 242
 243 static ULONG WINAPI ConnectionPointContainer_Release(IConnectionPointContainer *iface)
 244 {
 245     HTMLDocument *This = CONPTCONT_THIS(iface);
 246     return IHTMLDocument2_Release(HTMLDOC(This));
 247 }
 248
 249 static HRESULT WINAPI ConnectionPointContainer_EnumConnectionPoints(IConnectionPointContainer *iface,
 250         IEnumConnectionPoints **ppEnum)
 251 {
 252     HTMLDocument *This = CONPTCONT_THIS(iface);
 253     FIXME("(%p)->(%p)\n", This, ppEnum);
 254     return E_NOTIMPL;
 255 }
 256
 257 static HRESULT WINAPI ConnectionPointContainer_FindConnectionPoint(IConnectionPointContainer *iface,
 258         REFIID riid, IConnectionPoint **ppCP)
 259 {
 260     HTMLDocument *This = CONPTCONT_THIS(iface);
 261
 262     *ppCP = NULL;
 263
 264     if(IsEqualGUID(&DIID_HTMLDocumentEvents, riid)) {
 265         TRACE("(%p)->(DIID_HTMLDocumentEvents %p)\n", This, ppCP);
 266         *ppCP = CONPOINT(This->cp_htmldocevents);
 267     }else if(IsEqualGUID(&DIID_HTMLDocumentEvents2, riid)) {
 268         TRACE("(%p)->(DIID_HTMLDocumentEvents2 %p)\n", This, ppCP);
 269         *ppCP = CONPOINT(This->cp_htmldocevents2);
 270     }else if(IsEqualGUID(&IID_IPropertyNotifySink, riid)) {
 271         TRACE("(%p)->(IID_IPropertyNotifySink %p)\n", This, ppCP);
 272         *ppCP = CONPOINT(This->cp_propnotif);
 273     }
 274
 275     if(*ppCP) {
 276         IConnectionPoint_AddRef(*ppCP);
 277         return S_OK;
 278     }
 279
 280     FIXME("(%p)->(%s %p) unsupported riid\n", This, debugstr_guid(riid), ppCP);
 281     return CONNECT_E_NOCONNECTION;
 282 }
 283
 284 static const IConnectionPointContainerVtbl ConnectionPointContainerVtbl = {
 285     ConnectionPointContainer_QueryInterface,
 286     ConnectionPointContainer_AddRef,
 287     ConnectionPointContainer_Release,
 288     ConnectionPointContainer_EnumConnectionPoints,
 289     ConnectionPointContainer_FindConnectionPoint
 290 };
 291
 292 #undef CONPTCONT_THIS
 293
 294 void HTMLDocument_ConnectionPoints_Init(HTMLDocument *This)
 295 {
 296     This->lpConnectionPointContainerVtbl = &ConnectionPointContainerVtbl;
 297
 298     ConnectionPoint_Create(This, &IID_IPropertyNotifySink, &This->cp_propnotif);
 299     ConnectionPoint_Create(This, &DIID_HTMLDocumentEvents, &This->cp_htmldocevents);
 300     ConnectionPoint_Create(This, &DIID_HTMLDocumentEvents2, &This->cp_htmldocevents2);
 301 }
 302
 303 void HTMLDocument_ConnectionPoints_Destroy(HTMLDocument *This)
 304 {
 305     ConnectionPoint_Destroy(This->cp_propnotif);
 306     ConnectionPoint_Destroy(This->cp_htmldocevents);
 307     ConnectionPoint_Destroy(This->cp_htmldocevents2);
 308 }