dlls/shdocvw/events.c

   1 /*
   2  * Implementation of event-related interfaces for WebBrowser control:
   3  *
   4  *  - IConnectionPointContainer
   5  *  - IConnectionPoint
   6  *
   7  * Copyright 2001 John R. Sheets (for CodeWeavers)
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  22  */
  23
  24 #include <string.h>
  25 #include "wine/debug.h"
  26 #include "shdocvw.h"
  27
  28 WINE_DEFAULT_DEBUG_CHANNEL(shdocvw);
  29
  30 typedef struct {
  31     const IConnectionPointVtbl *lpConnectionPointVtbl;
  32
  33     WebBrowser *webbrowser;
  34
  35     IID iid;
  36 } ConnectionPoint;
  37
  38 #define CONPOINT(x)  ((IConnectionPoint*) &(x)->lpConnectionPointVtbl)
  39
  40 /**********************************************************************
  41  * Implement the IConnectionPointContainer interface
  42  */
  43
  44 #define CONPTCONT_THIS(iface) DEFINE_THIS(WebBrowser, ConnectionPointContainer, iface)
  45
  46 static HRESULT WINAPI ConnectionPointContainer_QueryInterface(IConnectionPointContainer *iface,
  47         REFIID riid, LPVOID *ppobj)
  48 {
  49     WebBrowser *This = CONPTCONT_THIS(iface);
  50     return IWebBrowser_QueryInterface(WEBBROWSER(This), riid, ppobj);
  51 }
  52
  53 static ULONG WINAPI ConnectionPointContainer_AddRef(IConnectionPointContainer *iface)
  54 {
  55     WebBrowser *This = CONPTCONT_THIS(iface);
  56     return IWebBrowser_AddRef(WEBBROWSER(This));
  57 }
  58
  59 static ULONG WINAPI ConnectionPointContainer_Release(IConnectionPointContainer *iface)
  60 {
  61     WebBrowser *This = CONPTCONT_THIS(iface);
  62     return IWebBrowser_Release(WEBBROWSER(This));
  63 }
  64
  65 static HRESULT WINAPI ConnectionPointContainer_EnumConnectionPoints(IConnectionPointContainer *iface,
  66         LPENUMCONNECTIONPOINTS *ppEnum)
  67 {
  68     WebBrowser *This = CONPTCONT_THIS(iface);
  69     FIXME("(%p)->(%p)\n", This, ppEnum);
  70     return E_NOTIMPL;
  71 }
  72
  73 static HRESULT WINAPI ConnectionPointContainer_FindConnectionPoint(IConnectionPointContainer *iface,
  74         REFIID riid, LPCONNECTIONPOINT *ppCP)
  75 {
  76     WebBrowser *This = CONPTCONT_THIS(iface);
  77
  78     if(!ppCP) {
  79         WARN("ppCP == NULL\n");
  80         return E_POINTER;
  81     }
  82
  83     *ppCP = NULL;
  84
  85     if(IsEqualGUID(&DIID_DWebBrowserEvents2, riid)) {
  86         TRACE("(%p)->(DIID_DWebBrowserEvents2 %p)\n", This, ppCP);
  87         *ppCP = This->cp_wbe2;
  88     }else if(IsEqualGUID(&DIID_DWebBrowserEvents, riid)) {
  89         TRACE("(%p)->(DIID_DWebBrowserEvents %p)\n", This, ppCP);
  90         *ppCP = This->cp_wbe;
  91     }else if(IsEqualGUID(&IID_IPropertyNotifySink, riid)) {
  92         TRACE("(%p)->(IID_IPropertyNotifySink %p)\n", This, ppCP);
  93         *ppCP = This->cp_pns;
  94     }
  95
  96     if(*ppCP) {
  97         IConnectionPoint_AddRef(*ppCP);
  98         return S_OK;
  99     }
 100
 101     WARN("Unsupported IID %s\n", debugstr_guid(riid));
 102     return E_NOINTERFACE;
 103 }
 104
 105 #undef CONPTCONT_THIS
 106
 107 static const IConnectionPointContainerVtbl ConnectionPointContainerVtbl =
 108 {
 109     ConnectionPointContainer_QueryInterface,
 110     ConnectionPointContainer_AddRef,
 111     ConnectionPointContainer_Release,
 112     ConnectionPointContainer_EnumConnectionPoints,
 113     ConnectionPointContainer_FindConnectionPoint
 114 };
 115
 116
 117 /**********************************************************************
 118  * Implement the IConnectionPoint interface
 119  */
 120
 121 #define CONPOINT_THIS(iface) DEFINE_THIS(ConnectionPoint, ConnectionPoint, iface)
 122
 123 static HRESULT WINAPI ConnectionPoint_QueryInterface(IConnectionPoint *iface,
 124                                                      REFIID riid, LPVOID *ppv)
 125 {
 126     ConnectionPoint *This = CONPOINT_THIS(iface);
 127
 128     *ppv = NULL;
 129
 130     if(IsEqualGUID(&IID_IUnknown, riid)) {
 131         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
 132         *ppv = CONPOINT(This);
 133     }else if(IsEqualGUID(&IID_IConnectionPoint, riid)) {
 134         TRACE("(%p)->(IID_IConnectionPoint %p)\n", This, ppv);
 135         *ppv = CONPOINT(This);
 136     }
 137
 138     if(*ppv) {
 139         IWebBrowser2_AddRef(WEBBROWSER(This->webbrowser));
 140         return S_OK;
 141     }
 142
 143     WARN("Unsupported interface %s\n", debugstr_guid(riid));
 144     return E_NOINTERFACE;
 145 }
 146
 147 static ULONG WINAPI ConnectionPoint_AddRef(IConnectionPoint *iface)
 148 {
 149     ConnectionPoint *This = CONPOINT_THIS(iface);
 150     return IWebBrowser2_AddRef(WEBBROWSER(This->webbrowser));
 151 }
 152
 153 static ULONG WINAPI ConnectionPoint_Release(IConnectionPoint *iface)
 154 {
 155     ConnectionPoint *This = CONPOINT_THIS(iface);
 156     return IWebBrowser2_Release(WEBBROWSER(This->webbrowser));
 157 }
 158
 159 static HRESULT WINAPI ConnectionPoint_GetConnectionInterface(IConnectionPoint *iface, IID *pIID)
 160 {
 161     ConnectionPoint *This = CONPOINT_THIS(iface);
 162
 163     TRACE("(%p)->(%p)\n", This, pIID);
 164
 165     memcpy(pIID, &This->iid, sizeof(IID));
 166     return S_OK;
 167 }
 168
 169 static HRESULT WINAPI ConnectionPoint_GetConnectionPointContainer(IConnectionPoint *iface,
 170         IConnectionPointContainer **ppCPC)
 171 {
 172     ConnectionPoint *This = CONPOINT_THIS(iface);
 173
 174     TRACE("(%p)->(%p)\n", This, ppCPC);
 175
 176     *ppCPC = CONPTCONT(This->webbrowser);
 177     return S_OK;
 178 }
 179
 180 static HRESULT WINAPI ConnectionPoint_Advise(IConnectionPoint *iface, IUnknown *pUnkSink,
 181                                              DWORD *pdwCookie)
 182 {
 183     ConnectionPoint *This = CONPOINT_THIS(iface);
 184     FIXME("(%p)->(%p %p)\n", This, pUnkSink, pdwCookie);
 185     return E_NOTIMPL;
 186 }
 187
 188 static HRESULT WINAPI ConnectionPoint_Unadvise(IConnectionPoint *iface, DWORD dwCookie)
 189 {
 190     ConnectionPoint *This = CONPOINT_THIS(iface);
 191     FIXME("(%p)->(%ld)\n", This, dwCookie);
 192     return E_NOTIMPL;
 193 }
 194
 195 static HRESULT WINAPI ConnectionPoint_EnumConnections(IConnectionPoint *iface,
 196                                                       IEnumConnections **ppEnum)
 197 {
 198     ConnectionPoint *This = CONPOINT_THIS(iface);
 199     FIXME("(%p)->(%p)\n", This, ppEnum);
 200     return E_NOTIMPL;
 201 }
 202
 203 #undef CONPOINT_THIS
 204
 205 static const IConnectionPointVtbl ConnectionPointVtbl =
 206 {
 207     ConnectionPoint_QueryInterface,
 208     ConnectionPoint_AddRef,
 209     ConnectionPoint_Release,
 210     ConnectionPoint_GetConnectionInterface,
 211     ConnectionPoint_GetConnectionPointContainer,
 212     ConnectionPoint_Advise,
 213     ConnectionPoint_Unadvise,
 214     ConnectionPoint_EnumConnections
 215 };
 216
 217 static void ConnectionPoint_Create(WebBrowser *wb, REFIID riid, IConnectionPoint **cp)
 218 {
 219     ConnectionPoint *ret = HeapAlloc(GetProcessHeap(), 0, sizeof(ConnectionPoint));
 220
 221     ret->lpConnectionPointVtbl = &ConnectionPointVtbl;
 222     ret->webbrowser = wb;
 223     memcpy(&ret->iid, riid, sizeof(IID));
 224
 225     *cp = CONPOINT(ret);
 226 }
 227
 228 void WebBrowser_Events_Init(WebBrowser *This)
 229 {
 230     This->lpConnectionPointContainerVtbl = &ConnectionPointContainerVtbl;
 231
 232     ConnectionPoint_Create(This, &DIID_DWebBrowserEvents2, &This->cp_wbe2);
 233     ConnectionPoint_Create(This, &DIID_DWebBrowserEvents, &This->cp_wbe);
 234     ConnectionPoint_Create(This, &IID_IPropertyNotifySink, &This->cp_pns);
 235 }
 236
 237 void WebBrowser_Events_Destroy(WebBrowser *This)
 238 {
 239     HeapFree(GetProcessHeap(), 0, This->cp_wbe2);
 240     HeapFree(GetProcessHeap(), 0, This->cp_wbe);
 241     HeapFree(GetProcessHeap(), 0, This->cp_pns);
 242 }