reactos/dll/win32/ieframe/events.c

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/*
* Implementation of event-related interfaces for WebBrowser control:
*
* - IConnectionPointContainer
* - IConnectionPoint
*
* Copyright 2001 John R. Sheets (for CodeWeavers)
* Copyright 2006 Jacek Caban for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "ieframe.h"
struct ConnectionPoint {
IConnectionPoint IConnectionPoint_iface;
IConnectionPointContainer *container;
IDispatch **sinks;
DWORD sinks_size;
IID iid;
};
/**********************************************************************
* Implement the IConnectionPointContainer interface
*/
static inline ConnectionPointContainer *impl_from_IConnectionPointContainer(IConnectionPointContainer *iface)
{
return CONTAINING_RECORD(iface, ConnectionPointContainer, IConnectionPointContainer_iface);
}
static HRESULT WINAPI ConnectionPointContainer_QueryInterface(IConnectionPointContainer *iface,
REFIID riid, LPVOID *ppv)
{
ConnectionPointContainer *This = impl_from_IConnectionPointContainer(iface);
return IUnknown_QueryInterface(This->impl, riid, ppv);
}
static ULONG WINAPI ConnectionPointContainer_AddRef(IConnectionPointContainer *iface)
{
ConnectionPointContainer *This = impl_from_IConnectionPointContainer(iface);
return IUnknown_AddRef(This->impl);
}
static ULONG WINAPI ConnectionPointContainer_Release(IConnectionPointContainer *iface)
{
ConnectionPointContainer *This = impl_from_IConnectionPointContainer(iface);
return IUnknown_Release(This->impl);
}
static HRESULT WINAPI ConnectionPointContainer_EnumConnectionPoints(IConnectionPointContainer *iface,
LPENUMCONNECTIONPOINTS *ppEnum)
{
ConnectionPointContainer *This = impl_from_IConnectionPointContainer(iface);
FIXME("(%p)->(%p)\n", This, ppEnum);
return E_NOTIMPL;
}
static HRESULT WINAPI ConnectionPointContainer_FindConnectionPoint(IConnectionPointContainer *iface,
REFIID riid, LPCONNECTIONPOINT *ppCP)
{
ConnectionPointContainer *This = impl_from_IConnectionPointContainer(iface);
if(!ppCP) {
WARN("ppCP == NULL\n");
return E_POINTER;
}
*ppCP = NULL;
if(IsEqualGUID(&DIID_DWebBrowserEvents2, riid)) {
TRACE("(%p)->(DIID_DWebBrowserEvents2 %p)\n", This, ppCP);
*ppCP = &This->wbe2->IConnectionPoint_iface;
}else if(IsEqualGUID(&DIID_DWebBrowserEvents, riid)) {
TRACE("(%p)->(DIID_DWebBrowserEvents %p)\n", This, ppCP);
*ppCP = &This->wbe->IConnectionPoint_iface;
}else if(IsEqualGUID(&IID_IPropertyNotifySink, riid)) {
TRACE("(%p)->(IID_IPropertyNotifySink %p)\n", This, ppCP);
*ppCP = &This->pns->IConnectionPoint_iface;
}
if(*ppCP) {
IConnectionPoint_AddRef(*ppCP);
return S_OK;
}
WARN("Unsupported IID %s\n", debugstr_guid(riid));
return CONNECT_E_NOCONNECTION;
}
static const IConnectionPointContainerVtbl ConnectionPointContainerVtbl =
{
ConnectionPointContainer_QueryInterface,
ConnectionPointContainer_AddRef,
ConnectionPointContainer_Release,
ConnectionPointContainer_EnumConnectionPoints,
ConnectionPointContainer_FindConnectionPoint
};
/**********************************************************************
* Implement the IConnectionPoint interface
*/
static inline ConnectionPoint *impl_from_IConnectionPoint(IConnectionPoint *iface)
{
return CONTAINING_RECORD(iface, ConnectionPoint, IConnectionPoint_iface);
}
typedef struct {
IEnumConnections IEnumConnections_iface;
LONG ref;
ConnectionPoint *cp;
DWORD iter;
} EnumConnections;
static inline EnumConnections *impl_from_IEnumConnections(IEnumConnections *iface)
{
return CONTAINING_RECORD(iface, EnumConnections, IEnumConnections_iface);
}
static HRESULT WINAPI EnumConnections_QueryInterface(IEnumConnections *iface, REFIID riid, void **ppv)
{
EnumConnections *This = impl_from_IEnumConnections(iface);
if(IsEqualGUID(&IID_IUnknown, riid)) {
TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
*ppv = &This->IEnumConnections_iface;
}else if(IsEqualGUID(&IID_IEnumConnections, riid)) {
TRACE("(%p)->(IID_IEnumConnections %p)\n", This, ppv);
*ppv = &This->IEnumConnections_iface;
}else {
WARN("Unsupported interface %s\n", debugstr_guid(riid));
*ppv = NULL;
return E_NOINTERFACE;
}
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
static ULONG WINAPI EnumConnections_AddRef(IEnumConnections *iface)
{
EnumConnections *This = impl_from_IEnumConnections(iface);
LONG ref = InterlockedIncrement(&This->ref);
TRACE("(%p) ref=%d\n", This, ref);
return ref;
}
static ULONG WINAPI EnumConnections_Release(IEnumConnections *iface)
{
EnumConnections *This = impl_from_IEnumConnections(iface);
LONG ref = InterlockedDecrement(&This->ref);
TRACE("(%p) ref=%d\n", This, ref);
if(!ref) {
IConnectionPoint_Release(&This->cp->IConnectionPoint_iface);
heap_free(This);
}
return ref;
}
static HRESULT WINAPI EnumConnections_Next(IEnumConnections *iface, ULONG cConnections, CONNECTDATA *pgcd, ULONG *pcFetched)
{
EnumConnections *This = impl_from_IEnumConnections(iface);
ULONG cnt = 0;
TRACE("(%p)->(%u %p %p)\n", This, cConnections, pgcd, pcFetched);
while(cConnections--) {
while(This->iter < This->cp->sinks_size && !This->cp->sinks[This->iter])
This->iter++;
if(This->iter == This->cp->sinks_size)
break;
pgcd[cnt].pUnk = (IUnknown*)This->cp->sinks[This->iter];
pgcd[cnt].dwCookie = cnt+1;
This->iter++;
cnt++;
}
if(pcFetched)
*pcFetched = cnt;
return cnt ? S_OK : S_FALSE;
}
static HRESULT WINAPI EnumConnections_Skip(IEnumConnections *iface, ULONG cConnections)
{
EnumConnections *This = impl_from_IEnumConnections(iface);
FIXME("(%p)->(%u)\n", This, cConnections);
return E_NOTIMPL;
}
static HRESULT WINAPI EnumConnections_Reset(IEnumConnections *iface)
{
EnumConnections *This = impl_from_IEnumConnections(iface);
FIXME("(%p)\n", This);
return E_NOTIMPL;
}
static HRESULT WINAPI EnumConnections_Clone(IEnumConnections *iface, IEnumConnections **ppEnum)
{
EnumConnections *This = impl_from_IEnumConnections(iface);
FIXME("(%p)->(%p)\n", This, ppEnum);
return E_NOTIMPL;
}
static const IEnumConnectionsVtbl EnumConnectionsVtbl = {
EnumConnections_QueryInterface,
EnumConnections_AddRef,
EnumConnections_Release,
EnumConnections_Next,
EnumConnections_Skip,
EnumConnections_Reset,
EnumConnections_Clone
};
static HRESULT WINAPI ConnectionPoint_QueryInterface(IConnectionPoint *iface,
REFIID riid, LPVOID *ppv)
{
ConnectionPoint *This = impl_from_IConnectionPoint(iface);
*ppv = NULL;
if(IsEqualGUID(&IID_IUnknown, riid)) {
TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
*ppv = &This->IConnectionPoint_iface;
}else if(IsEqualGUID(&IID_IConnectionPoint, riid)) {
TRACE("(%p)->(IID_IConnectionPoint %p)\n", This, ppv);
*ppv = &This->IConnectionPoint_iface;
}
if(*ppv) {
IConnectionPointContainer_AddRef(This->container);
return S_OK;
}
WARN("Unsupported interface %s\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
static ULONG WINAPI ConnectionPoint_AddRef(IConnectionPoint *iface)
{
ConnectionPoint *This = impl_from_IConnectionPoint(iface);
return IConnectionPointContainer_AddRef(This->container);
}
static ULONG WINAPI ConnectionPoint_Release(IConnectionPoint *iface)
{
ConnectionPoint *This = impl_from_IConnectionPoint(iface);
return IConnectionPointContainer_Release(This->container);
}
static HRESULT WINAPI ConnectionPoint_GetConnectionInterface(IConnectionPoint *iface, IID *pIID)
{
ConnectionPoint *This = impl_from_IConnectionPoint(iface);
TRACE("(%p)->(%p)\n", This, pIID);
*pIID = This->iid;
return S_OK;
}
static HRESULT WINAPI ConnectionPoint_GetConnectionPointContainer(IConnectionPoint *iface,
IConnectionPointContainer **ppCPC)
{
ConnectionPoint *This = impl_from_IConnectionPoint(iface);
TRACE("(%p)->(%p)\n", This, ppCPC);
*ppCPC = This->container;
IConnectionPointContainer_AddRef(This->container);
return S_OK;
}
static HRESULT WINAPI ConnectionPoint_Advise(IConnectionPoint *iface, IUnknown *pUnkSink,
DWORD *pdwCookie)
{
ConnectionPoint *This = impl_from_IConnectionPoint(iface);
IDispatch *disp;
DWORD i;
HRESULT hres;
TRACE("(%p)->(%p %p)\n", This, pUnkSink, pdwCookie);
hres = IUnknown_QueryInterface(pUnkSink, &This->iid, (void**)&disp);
if(FAILED(hres)) {
hres = IUnknown_QueryInterface(pUnkSink, &IID_IDispatch, (void**)&disp);
if(FAILED(hres))
return CONNECT_E_CANNOTCONNECT;
}
if(This->sinks) {
for(i=0; i<This->sinks_size; i++) {
if(!This->sinks[i])
break;
}
if(i == This->sinks_size)
This->sinks = heap_realloc(This->sinks,
(++This->sinks_size)*sizeof(*This->sinks));
}else {
This->sinks = heap_alloc(sizeof(*This->sinks));
This->sinks_size = 1;
i = 0;
}
This->sinks[i] = disp;
*pdwCookie = i+1;
return S_OK;
}
static HRESULT WINAPI ConnectionPoint_Unadvise(IConnectionPoint *iface, DWORD dwCookie)
{
ConnectionPoint *This = impl_from_IConnectionPoint(iface);
TRACE("(%p)->(%d)\n", This, dwCookie);
if(!dwCookie || dwCookie > This->sinks_size || !This->sinks[dwCookie-1])
return CONNECT_E_NOCONNECTION;
IDispatch_Release(This->sinks[dwCookie-1]);
This->sinks[dwCookie-1] = NULL;
return S_OK;
}
static HRESULT WINAPI ConnectionPoint_EnumConnections(IConnectionPoint *iface,
IEnumConnections **ppEnum)
{
ConnectionPoint *This = impl_from_IConnectionPoint(iface);
EnumConnections *ret;
TRACE("(%p)->(%p)\n", This, ppEnum);
ret = heap_alloc(sizeof(*ret));
if(!ret)
return E_OUTOFMEMORY;
ret->IEnumConnections_iface.lpVtbl = &EnumConnectionsVtbl;
ret->ref = 1;
ret->iter = 0;
IConnectionPoint_AddRef(&This->IConnectionPoint_iface);
ret->cp = This;
*ppEnum = &ret->IEnumConnections_iface;
return S_OK;
}
static const IConnectionPointVtbl ConnectionPointVtbl =
{
ConnectionPoint_QueryInterface,
ConnectionPoint_AddRef,
ConnectionPoint_Release,
ConnectionPoint_GetConnectionInterface,
ConnectionPoint_GetConnectionPointContainer,
ConnectionPoint_Advise,
ConnectionPoint_Unadvise,
ConnectionPoint_EnumConnections
};
void call_sink(ConnectionPoint *This, DISPID dispid, DISPPARAMS *dispparams)
{
DWORD i;
for(i=0; i<This->sinks_size; i++) {
if(This->sinks[i])
IDispatch_Invoke(This->sinks[i], dispid, &IID_NULL, LOCALE_SYSTEM_DEFAULT,
DISPATCH_METHOD, dispparams, NULL, NULL, NULL);
}
}
static void ConnectionPoint_Create(REFIID riid, ConnectionPoint **cp,
IConnectionPointContainer *container)
{
ConnectionPoint *ret = heap_alloc(sizeof(ConnectionPoint));
ret->IConnectionPoint_iface.lpVtbl = &ConnectionPointVtbl;
ret->sinks = NULL;
ret->sinks_size = 0;
ret->container = container;
ret->iid = *riid;
*cp = ret;
}
static void ConnectionPoint_Destroy(ConnectionPoint *This)
{
DWORD i;
for(i=0; i<This->sinks_size; i++) {
if(This->sinks[i])
IDispatch_Release(This->sinks[i]);
}
heap_free(This->sinks);
heap_free(This);
}
void ConnectionPointContainer_Init(ConnectionPointContainer *This, IUnknown *impl)
{
This->IConnectionPointContainer_iface.lpVtbl = &ConnectionPointContainerVtbl;
ConnectionPoint_Create(&DIID_DWebBrowserEvents2, &This->wbe2, &This->IConnectionPointContainer_iface);
ConnectionPoint_Create(&DIID_DWebBrowserEvents, &This->wbe, &This->IConnectionPointContainer_iface);
ConnectionPoint_Create(&IID_IPropertyNotifySink, &This->pns, &This->IConnectionPointContainer_iface);
This->impl = impl;
}
void ConnectionPointContainer_Destroy(ConnectionPointContainer *This)
{
ConnectionPoint_Destroy(This->wbe2);
ConnectionPoint_Destroy(This->wbe);
ConnectionPoint_Destroy(This->pns);
}