976 lines
25 KiB
C
976 lines
25 KiB
C
/*
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* OLE2 COM objects
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*
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* Copyright 1998 Eric Kohl
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* Copyright 1999 Francis Beaudet
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <stdarg.h>
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#include <string.h>
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#define COBJMACROS
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#include "windef.h"
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#include "winbase.h"
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#include "winuser.h"
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#include "winerror.h"
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#include "wine/debug.h"
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#include "ole2.h"
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WINE_DEFAULT_DEBUG_CHANNEL(ole);
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#define INITIAL_SINKS 10
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/**************************************************************************
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* OleAdviseHolderImpl Implementation
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*/
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typedef struct OleAdviseHolderImpl
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{
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const IOleAdviseHolderVtbl *lpVtbl;
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LONG ref;
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DWORD maxSinks;
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IAdviseSink** arrayOfSinks;
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} OleAdviseHolderImpl;
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static HRESULT EnumOleSTATDATA_Construct(OleAdviseHolderImpl *pOleAdviseHolder, ULONG index, IEnumSTATDATA **ppenum);
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typedef struct
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{
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const IEnumSTATDATAVtbl *lpvtbl;
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LONG ref;
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ULONG index;
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OleAdviseHolderImpl *pOleAdviseHolder;
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} EnumOleSTATDATA;
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static HRESULT WINAPI EnumOleSTATDATA_QueryInterface(
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IEnumSTATDATA *iface, REFIID riid, void **ppv)
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{
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TRACE("(%s, %p)\n", debugstr_guid(riid), ppv);
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if (IsEqualIID(riid, &IID_IUnknown) ||
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IsEqualIID(riid, &IID_IEnumSTATDATA))
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{
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IUnknown_AddRef(iface);
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*ppv = iface;
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return S_OK;
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}
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return E_NOINTERFACE;
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}
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static ULONG WINAPI EnumOleSTATDATA_AddRef(
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IEnumSTATDATA *iface)
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{
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EnumOleSTATDATA *This = (EnumOleSTATDATA *)iface;
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TRACE("()\n");
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return InterlockedIncrement(&This->ref);
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}
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static ULONG WINAPI EnumOleSTATDATA_Release(
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IEnumSTATDATA *iface)
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{
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EnumOleSTATDATA *This = (EnumOleSTATDATA *)iface;
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LONG refs = InterlockedDecrement(&This->ref);
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TRACE("()\n");
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if (!refs)
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{
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IOleAdviseHolder_Release((IOleAdviseHolder *)This->pOleAdviseHolder);
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HeapFree(GetProcessHeap(), 0, This);
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}
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return refs;
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}
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static HRESULT WINAPI EnumOleSTATDATA_Next(
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IEnumSTATDATA *iface, ULONG celt, LPSTATDATA rgelt,
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ULONG *pceltFetched)
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{
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EnumOleSTATDATA *This = (EnumOleSTATDATA *)iface;
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HRESULT hr = S_OK;
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TRACE("(%ld, %p, %p)\n", celt, rgelt, pceltFetched);
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if (pceltFetched)
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*pceltFetched = 0;
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for (; celt; celt--, rgelt++)
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{
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while ((This->index < This->pOleAdviseHolder->maxSinks) &&
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!This->pOleAdviseHolder->arrayOfSinks[This->index])
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{
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This->index++;
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}
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if (This->index >= This->pOleAdviseHolder->maxSinks)
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{
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hr = S_FALSE;
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break;
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}
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memset(&rgelt->formatetc, 0, sizeof(rgelt->formatetc));
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rgelt->advf = 0;
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rgelt->pAdvSink = This->pOleAdviseHolder->arrayOfSinks[This->index];
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IAdviseSink_AddRef(rgelt->pAdvSink);
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rgelt->dwConnection = This->index;
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if (pceltFetched)
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(*pceltFetched)++;
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This->index++;
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}
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return hr;
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}
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static HRESULT WINAPI EnumOleSTATDATA_Skip(
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IEnumSTATDATA *iface, ULONG celt)
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{
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EnumOleSTATDATA *This = (EnumOleSTATDATA *)iface;
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TRACE("(%ld)\n", celt);
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for (; celt; celt--)
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{
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while ((This->index < This->pOleAdviseHolder->maxSinks) &&
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!This->pOleAdviseHolder->arrayOfSinks[This->index])
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{
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This->index++;
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}
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if (This->index >= This->pOleAdviseHolder->maxSinks)
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return S_FALSE;
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This->index++;
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}
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return S_OK;
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}
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static HRESULT WINAPI EnumOleSTATDATA_Reset(
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IEnumSTATDATA *iface)
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{
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EnumOleSTATDATA *This = (EnumOleSTATDATA *)iface;
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TRACE("()\n");
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This->index = 0;
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return S_OK;
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}
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static HRESULT WINAPI EnumOleSTATDATA_Clone(
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IEnumSTATDATA *iface,
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IEnumSTATDATA **ppenum)
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{
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EnumOleSTATDATA *This = (EnumOleSTATDATA *)iface;
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return EnumOleSTATDATA_Construct(This->pOleAdviseHolder, This->index, ppenum);
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}
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static const IEnumSTATDATAVtbl EnumOleSTATDATA_VTable =
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{
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EnumOleSTATDATA_QueryInterface,
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EnumOleSTATDATA_AddRef,
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EnumOleSTATDATA_Release,
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EnumOleSTATDATA_Next,
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EnumOleSTATDATA_Skip,
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EnumOleSTATDATA_Reset,
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EnumOleSTATDATA_Clone
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};
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static HRESULT EnumOleSTATDATA_Construct(OleAdviseHolderImpl *pOleAdviseHolder, ULONG index, IEnumSTATDATA **ppenum)
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{
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EnumOleSTATDATA *This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
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if (!This)
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return E_OUTOFMEMORY;
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This->lpvtbl = &EnumOleSTATDATA_VTable;
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This->ref = 1;
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This->index = index;
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This->pOleAdviseHolder = pOleAdviseHolder;
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IOleAdviseHolder_AddRef((IOleAdviseHolder *)pOleAdviseHolder);
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*ppenum = (IEnumSTATDATA *)&This->lpvtbl;
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return S_OK;
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}
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/**************************************************************************
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* OleAdviseHolderImpl_Destructor
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*/
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static void OleAdviseHolderImpl_Destructor(
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OleAdviseHolderImpl* ptrToDestroy)
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{
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DWORD index;
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TRACE("%p\n", ptrToDestroy);
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for (index = 0; index < ptrToDestroy->maxSinks; index++)
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{
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if (ptrToDestroy->arrayOfSinks[index]!=0)
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{
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IAdviseSink_Release(ptrToDestroy->arrayOfSinks[index]);
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ptrToDestroy->arrayOfSinks[index] = NULL;
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}
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}
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HeapFree(GetProcessHeap(),
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0,
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ptrToDestroy->arrayOfSinks);
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HeapFree(GetProcessHeap(),
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0,
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ptrToDestroy);
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}
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/**************************************************************************
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* OleAdviseHolderImpl_QueryInterface
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*/
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static HRESULT WINAPI OleAdviseHolderImpl_QueryInterface(
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LPOLEADVISEHOLDER iface,
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REFIID riid,
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LPVOID* ppvObj)
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{
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OleAdviseHolderImpl *This = (OleAdviseHolderImpl *)iface;
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TRACE("(%p)->(%s,%p)\n",This,debugstr_guid(riid),ppvObj);
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/*
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* Sanity check
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*/
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if (ppvObj==NULL)
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return E_POINTER;
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*ppvObj = NULL;
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if (IsEqualIID(riid, &IID_IUnknown))
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{
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/* IUnknown */
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*ppvObj = This;
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}
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else if(IsEqualIID(riid, &IID_IOleAdviseHolder))
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{
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/* IOleAdviseHolder */
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*ppvObj = (IOleAdviseHolder*) This;
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}
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if(*ppvObj == NULL)
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return E_NOINTERFACE;
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/*
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* A successful QI always increments the reference count.
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*/
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IUnknown_AddRef((IUnknown*)*ppvObj);
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return S_OK;
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}
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/******************************************************************************
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* OleAdviseHolderImpl_AddRef
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*/
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static ULONG WINAPI OleAdviseHolderImpl_AddRef(
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LPOLEADVISEHOLDER iface)
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{
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OleAdviseHolderImpl *This = (OleAdviseHolderImpl *)iface;
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ULONG ref = InterlockedIncrement(&This->ref);
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TRACE("(%p)->(ref=%ld)\n", This, ref - 1);
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return ref;
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}
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/******************************************************************************
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* OleAdviseHolderImpl_Release
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*/
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static ULONG WINAPI OleAdviseHolderImpl_Release(
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LPOLEADVISEHOLDER iface)
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{
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OleAdviseHolderImpl *This = (OleAdviseHolderImpl *)iface;
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ULONG ref;
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TRACE("(%p)->(ref=%ld)\n", This, This->ref);
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ref = InterlockedDecrement(&This->ref);
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if (ref == 0) OleAdviseHolderImpl_Destructor(This);
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return ref;
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}
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/******************************************************************************
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* OleAdviseHolderImpl_Advise
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*/
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static HRESULT WINAPI OleAdviseHolderImpl_Advise(
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LPOLEADVISEHOLDER iface,
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IAdviseSink* pAdvise,
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DWORD* pdwConnection)
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{
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DWORD index;
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OleAdviseHolderImpl *This = (OleAdviseHolderImpl *)iface;
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TRACE("(%p)->(%p, %p)\n", This, pAdvise, pdwConnection);
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/*
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* Sanity check
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*/
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if (pdwConnection==NULL)
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return E_POINTER;
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*pdwConnection = 0;
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/*
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* Find a free spot in the array.
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*/
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for (index = 0; index < This->maxSinks; index++)
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{
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if (This->arrayOfSinks[index]==NULL)
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break;
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}
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/*
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* If the array is full, we need to grow it.
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*/
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if (index == This->maxSinks)
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{
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DWORD i;
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This->maxSinks+=INITIAL_SINKS;
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This->arrayOfSinks = HeapReAlloc(GetProcessHeap(),
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0,
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This->arrayOfSinks,
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This->maxSinks*sizeof(IAdviseSink*));
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for (i=index;i < This->maxSinks; i++)
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This->arrayOfSinks[i]=0;
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}
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/*
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* Store the new sink
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*/
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This->arrayOfSinks[index] = pAdvise;
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if (This->arrayOfSinks[index]!=NULL)
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IAdviseSink_AddRef(This->arrayOfSinks[index]);
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/*
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* Return the index as the cookie.
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* Since 0 is not a valid cookie, we will increment by
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* 1 the index in the table.
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*/
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*pdwConnection = index+1;
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return S_OK;
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}
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/******************************************************************************
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* OleAdviseHolderImpl_Unadvise
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*/
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static HRESULT WINAPI OleAdviseHolderImpl_Unadvise(
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LPOLEADVISEHOLDER iface,
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DWORD dwConnection)
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{
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OleAdviseHolderImpl *This = (OleAdviseHolderImpl *)iface;
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TRACE("(%p)->(%lu)\n", This, dwConnection);
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/*
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* So we don't return 0 as a cookie, the index was
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* incremented by 1 in OleAdviseHolderImpl_Advise
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* we have to compensate.
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*/
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dwConnection--;
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/*
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* Check for invalid cookies.
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*/
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if (dwConnection >= This->maxSinks)
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return OLE_E_NOCONNECTION;
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if (This->arrayOfSinks[dwConnection] == NULL)
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return OLE_E_NOCONNECTION;
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/*
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* Release the sink and mark the spot in the list as free.
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*/
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IAdviseSink_Release(This->arrayOfSinks[dwConnection]);
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This->arrayOfSinks[dwConnection] = NULL;
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return S_OK;
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}
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/******************************************************************************
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* OleAdviseHolderImpl_EnumAdvise
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*/
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static HRESULT WINAPI
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OleAdviseHolderImpl_EnumAdvise (LPOLEADVISEHOLDER iface, IEnumSTATDATA **ppenumAdvise)
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{
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OleAdviseHolderImpl *This = (OleAdviseHolderImpl *)iface;
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TRACE("(%p)->(%p)\n", This, ppenumAdvise);
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*ppenumAdvise = NULL;
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return EnumOleSTATDATA_Construct(This, 0, ppenumAdvise);
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}
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/******************************************************************************
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* OleAdviseHolderImpl_SendOnRename
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*/
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static HRESULT WINAPI
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OleAdviseHolderImpl_SendOnRename (LPOLEADVISEHOLDER iface, IMoniker *pmk)
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{
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IEnumSTATDATA *pEnum;
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HRESULT hr;
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TRACE("(%p)->(%p)\n", iface, pmk);
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hr = IOleAdviseHolder_EnumAdvise(iface, &pEnum);
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if (SUCCEEDED(hr))
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{
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STATDATA statdata;
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while (IEnumSTATDATA_Next(pEnum, 1, &statdata, NULL) == S_OK)
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{
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IAdviseSink_OnRename(statdata.pAdvSink, pmk);
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IAdviseSink_Release(statdata.pAdvSink);
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}
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IEnumSTATDATA_Release(pEnum);
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}
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return hr;
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}
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/******************************************************************************
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* OleAdviseHolderImpl_SendOnSave
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*/
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static HRESULT WINAPI
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OleAdviseHolderImpl_SendOnSave (LPOLEADVISEHOLDER iface)
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{
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IEnumSTATDATA *pEnum;
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HRESULT hr;
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TRACE("(%p)->()\n", iface);
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hr = IOleAdviseHolder_EnumAdvise(iface, &pEnum);
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if (SUCCEEDED(hr))
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{
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STATDATA statdata;
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while (IEnumSTATDATA_Next(pEnum, 1, &statdata, NULL) == S_OK)
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{
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IAdviseSink_OnSave(statdata.pAdvSink);
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IAdviseSink_Release(statdata.pAdvSink);
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}
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IEnumSTATDATA_Release(pEnum);
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}
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return hr;
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}
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/******************************************************************************
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* OleAdviseHolderImpl_SendOnClose
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*/
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static HRESULT WINAPI
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OleAdviseHolderImpl_SendOnClose (LPOLEADVISEHOLDER iface)
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{
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IEnumSTATDATA *pEnum;
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HRESULT hr;
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TRACE("(%p)->()\n", iface);
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hr = IOleAdviseHolder_EnumAdvise(iface, &pEnum);
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if (SUCCEEDED(hr))
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{
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STATDATA statdata;
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while (IEnumSTATDATA_Next(pEnum, 1, &statdata, NULL) == S_OK)
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{
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IAdviseSink_OnClose(statdata.pAdvSink);
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IAdviseSink_Release(statdata.pAdvSink);
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}
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IEnumSTATDATA_Release(pEnum);
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}
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return hr;
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}
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/**************************************************************************
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* OleAdviseHolderImpl_VTable
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*/
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static const IOleAdviseHolderVtbl oahvt =
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|
{
|
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OleAdviseHolderImpl_QueryInterface,
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OleAdviseHolderImpl_AddRef,
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OleAdviseHolderImpl_Release,
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OleAdviseHolderImpl_Advise,
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OleAdviseHolderImpl_Unadvise,
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OleAdviseHolderImpl_EnumAdvise,
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OleAdviseHolderImpl_SendOnRename,
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OleAdviseHolderImpl_SendOnSave,
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OleAdviseHolderImpl_SendOnClose
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};
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/**************************************************************************
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|
* OleAdviseHolderImpl_Constructor
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|
*/
|
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|
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static LPOLEADVISEHOLDER OleAdviseHolderImpl_Constructor(void)
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{
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OleAdviseHolderImpl* lpoah;
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DWORD index;
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lpoah = HeapAlloc(GetProcessHeap(), 0, sizeof(OleAdviseHolderImpl));
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lpoah->lpVtbl = &oahvt;
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lpoah->ref = 1;
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|
lpoah->maxSinks = INITIAL_SINKS;
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lpoah->arrayOfSinks = HeapAlloc(GetProcessHeap(),
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0,
|
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lpoah->maxSinks * sizeof(IAdviseSink*));
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for (index = 0; index < lpoah->maxSinks; index++)
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lpoah->arrayOfSinks[index]=0;
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TRACE("returning %p\n", lpoah);
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return (LPOLEADVISEHOLDER)lpoah;
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|
}
|
|
|
|
/**************************************************************************
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|
* DataAdviseHolder Implementation
|
|
*/
|
|
typedef struct DataAdviseConnection {
|
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IAdviseSink *sink;
|
|
FORMATETC fmat;
|
|
DWORD advf;
|
|
DWORD remote_connection;
|
|
} DataAdviseConnection;
|
|
|
|
typedef struct DataAdviseHolder
|
|
{
|
|
const IDataAdviseHolderVtbl *lpVtbl;
|
|
|
|
LONG ref;
|
|
DWORD maxCons;
|
|
DataAdviseConnection* Connections;
|
|
IDataObject* delegate;
|
|
} DataAdviseHolder;
|
|
|
|
/* this connection has also has been advised to the delegate data object */
|
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#define WINE_ADVF_REMOTE 0x80000000
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/******************************************************************************
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* DataAdviseHolder_Destructor
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*/
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static void DataAdviseHolder_Destructor(DataAdviseHolder* ptrToDestroy)
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{
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DWORD index;
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TRACE("%p\n", ptrToDestroy);
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for (index = 0; index < ptrToDestroy->maxCons; index++)
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{
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if (ptrToDestroy->Connections[index].sink != NULL)
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{
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if (ptrToDestroy->delegate &&
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(ptrToDestroy->Connections[index].advf & WINE_ADVF_REMOTE))
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IDataObject_DUnadvise(ptrToDestroy->delegate,
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ptrToDestroy->Connections[index].remote_connection);
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IAdviseSink_Release(ptrToDestroy->Connections[index].sink);
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ptrToDestroy->Connections[index].sink = NULL;
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}
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}
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HeapFree(GetProcessHeap(), 0, ptrToDestroy->Connections);
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HeapFree(GetProcessHeap(), 0, ptrToDestroy);
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}
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/************************************************************************
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* DataAdviseHolder_QueryInterface (IUnknown)
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*
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* See Windows documentation for more details on IUnknown methods.
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*/
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static HRESULT WINAPI DataAdviseHolder_QueryInterface(
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IDataAdviseHolder* iface,
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REFIID riid,
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void** ppvObject)
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{
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DataAdviseHolder *This = (DataAdviseHolder *)iface;
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TRACE("(%p)->(%s,%p)\n",This,debugstr_guid(riid),ppvObject);
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/*
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* Perform a sanity check on the parameters.
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*/
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if ( (This==0) || (ppvObject==0) )
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return E_INVALIDARG;
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/*
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* Initialize the return parameter.
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*/
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*ppvObject = 0;
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/*
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* Compare the riid with the interface IDs implemented by this object.
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*/
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if ( (memcmp(&IID_IUnknown, riid, sizeof(IID_IUnknown)) == 0) ||
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(memcmp(&IID_IDataAdviseHolder, riid, sizeof(IID_IDataAdviseHolder)) == 0) )
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{
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*ppvObject = iface;
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}
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/*
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* Check that we obtained an interface.
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*/
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if ((*ppvObject)==0)
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{
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return E_NOINTERFACE;
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}
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/*
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* Query Interface always increases the reference count by one when it is
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* successful.
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*/
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IUnknown_AddRef((IUnknown*)*ppvObject);
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return S_OK;
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}
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/************************************************************************
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* DataAdviseHolder_AddRef (IUnknown)
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*
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* See Windows documentation for more details on IUnknown methods.
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*/
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static ULONG WINAPI DataAdviseHolder_AddRef(
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IDataAdviseHolder* iface)
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{
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DataAdviseHolder *This = (DataAdviseHolder *)iface;
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TRACE("(%p) (ref=%ld)\n", This, This->ref);
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return InterlockedIncrement(&This->ref);
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}
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/************************************************************************
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* DataAdviseHolder_Release (IUnknown)
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*
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* See Windows documentation for more details on IUnknown methods.
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*/
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static ULONG WINAPI DataAdviseHolder_Release(
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IDataAdviseHolder* iface)
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{
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DataAdviseHolder *This = (DataAdviseHolder *)iface;
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ULONG ref;
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TRACE("(%p) (ref=%ld)\n", This, This->ref);
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/*
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* Decrease the reference count on this object.
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*/
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ref = InterlockedDecrement(&This->ref);
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/*
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* If the reference count goes down to 0, perform suicide.
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*/
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if (ref==0) DataAdviseHolder_Destructor(This);
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return ref;
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}
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/************************************************************************
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* DataAdviseHolder_Advise
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*
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*/
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static HRESULT WINAPI DataAdviseHolder_Advise(
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IDataAdviseHolder* iface,
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IDataObject* pDataObject,
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FORMATETC* pFetc,
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DWORD advf,
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IAdviseSink* pAdvise,
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DWORD* pdwConnection)
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{
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DWORD index;
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DataAdviseHolder *This = (DataAdviseHolder *)iface;
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TRACE("(%p)->(%p, %p, %08lx, %p, %p)\n", This, pDataObject, pFetc, advf,
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pAdvise, pdwConnection);
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/*
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* Sanity check
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*/
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if (pdwConnection==NULL)
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return E_POINTER;
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*pdwConnection = 0;
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/*
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* Find a free spot in the array.
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*/
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for (index = 0; index < This->maxCons; index++)
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{
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if (This->Connections[index].sink == NULL)
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break;
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}
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/*
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* If the array is full, we need to grow it.
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*/
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if (index == This->maxCons)
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{
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This->maxCons+=INITIAL_SINKS;
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This->Connections = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
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This->Connections,
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This->maxCons*sizeof(DataAdviseConnection));
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}
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/*
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* Store the new sink
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*/
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This->Connections[index].sink = pAdvise;
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memcpy(&(This->Connections[index].fmat), pFetc, sizeof(FORMATETC));
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This->Connections[index].advf = advf & ~WINE_ADVF_REMOTE;
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if (This->Connections[index].sink != NULL) {
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IAdviseSink_AddRef(This->Connections[index].sink);
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/* if we are already connected advise the remote object */
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if (This->delegate)
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{
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HRESULT hr;
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hr = IDataObject_DAdvise(This->delegate, &This->Connections[index].fmat,
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This->Connections[index].advf,
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This->Connections[index].sink,
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&This->Connections[index].remote_connection);
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if (FAILED(hr))
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{
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IDataAdviseHolder_Unadvise(iface, index + 1);
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return hr;
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}
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This->Connections[index].advf |= WINE_ADVF_REMOTE;
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}
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else if(advf & ADVF_PRIMEFIRST)
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/* only do this if we have no delegate, since in the above case the
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* delegate will do the priming for us */
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IDataAdviseHolder_SendOnDataChange(iface, pDataObject, 0, advf);
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}
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/*
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* Return the index as the cookie.
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* Since 0 is not a valid cookie, we will increment by
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* 1 the index in the table.
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*/
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*pdwConnection = index+1;
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return S_OK;
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}
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/******************************************************************************
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* DataAdviseHolder_Unadvise
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*/
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static HRESULT WINAPI DataAdviseHolder_Unadvise(
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IDataAdviseHolder* iface,
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DWORD dwConnection)
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{
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DataAdviseHolder *This = (DataAdviseHolder *)iface;
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TRACE("(%p)->(%lu)\n", This, dwConnection);
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/*
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* So we don't return 0 as a cookie, the index was
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* incremented by 1 in OleAdviseHolderImpl_Advise
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* we have to compensate.
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*/
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dwConnection--;
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/*
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* Check for invalid cookies.
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*/
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if (dwConnection >= This->maxCons)
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return OLE_E_NOCONNECTION;
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if (This->Connections[dwConnection].sink == NULL)
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return OLE_E_NOCONNECTION;
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if (This->delegate && This->Connections[dwConnection].advf & WINE_ADVF_REMOTE)
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IDataObject_DUnadvise(This->delegate,
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This->Connections[dwConnection].remote_connection);
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/*
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* Release the sink and mark the spot in the list as free.
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*/
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IAdviseSink_Release(This->Connections[dwConnection].sink);
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memset(&(This->Connections[dwConnection]), 0, sizeof(DataAdviseConnection));
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return S_OK;
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}
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static HRESULT WINAPI DataAdviseHolder_EnumAdvise(
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IDataAdviseHolder* iface,
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IEnumSTATDATA** ppenumAdvise)
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{
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DataAdviseHolder *This = (DataAdviseHolder *)iface;
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FIXME("(%p)->(%p)\n", This, ppenumAdvise);
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return E_NOTIMPL;
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}
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/******************************************************************************
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* DataAdviseHolder_SendOnDataChange
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*/
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static HRESULT WINAPI DataAdviseHolder_SendOnDataChange(
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IDataAdviseHolder* iface,
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IDataObject* pDataObject,
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DWORD dwReserved,
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DWORD advf)
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{
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DataAdviseHolder *This = (DataAdviseHolder *)iface;
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DWORD index;
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STGMEDIUM stg;
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HRESULT res;
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TRACE("(%p)->(%p,%08lx,%08lx)\n", This, pDataObject, dwReserved, advf);
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for(index = 0; index < This->maxCons; index++) {
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if(This->Connections[index].sink != NULL) {
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memset(&stg, 0, sizeof(stg));
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if(!(This->Connections[index].advf & ADVF_NODATA)) {
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TRACE("Calling IDataObject_GetData\n");
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res = IDataObject_GetData(pDataObject,
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&(This->Connections[index].fmat),
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&stg);
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TRACE("returns %08lx\n", res);
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}
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TRACE("Calling IAdviseSink_OnDataChange\n");
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IAdviseSink_OnDataChange(This->Connections[index].sink,
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&(This->Connections[index].fmat),
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&stg);
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TRACE("Done IAdviseSink_OnDataChange\n");
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if(This->Connections[index].advf & ADVF_ONLYONCE) {
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TRACE("Removing connection\n");
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DataAdviseHolder_Unadvise(iface, index+1);
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}
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}
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}
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return S_OK;
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}
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/**************************************************************************
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* DataAdviseHolderImpl_VTable
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*/
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static const IDataAdviseHolderVtbl DataAdviseHolderImpl_VTable =
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{
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DataAdviseHolder_QueryInterface,
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DataAdviseHolder_AddRef,
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DataAdviseHolder_Release,
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DataAdviseHolder_Advise,
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DataAdviseHolder_Unadvise,
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DataAdviseHolder_EnumAdvise,
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DataAdviseHolder_SendOnDataChange
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};
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HRESULT DataAdviseHolder_OnConnect(IDataAdviseHolder *iface, IDataObject *pDelegate)
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{
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DataAdviseHolder *This = (DataAdviseHolder *)iface;
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DWORD index;
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HRESULT hr = S_OK;
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for(index = 0; index < This->maxCons; index++)
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{
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if(This->Connections[index].sink != NULL)
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{
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hr = IDataObject_DAdvise(pDelegate, &This->Connections[index].fmat,
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This->Connections[index].advf,
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This->Connections[index].sink,
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&This->Connections[index].remote_connection);
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if (FAILED(hr)) break;
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This->Connections[index].advf |= WINE_ADVF_REMOTE;
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}
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}
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This->delegate = pDelegate;
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return hr;
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}
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void DataAdviseHolder_OnDisconnect(IDataAdviseHolder *iface)
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{
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DataAdviseHolder *This = (DataAdviseHolder *)iface;
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DWORD index;
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for(index = 0; index < This->maxCons; index++)
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{
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if((This->Connections[index].sink != NULL) &&
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(This->Connections[index].advf & WINE_ADVF_REMOTE))
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{
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IDataObject_DUnadvise(This->delegate,
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This->Connections[index].remote_connection);
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This->Connections[index].advf &= ~WINE_ADVF_REMOTE;
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}
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}
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This->delegate = NULL;
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}
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/******************************************************************************
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* DataAdviseHolder_Constructor
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*/
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static IDataAdviseHolder* DataAdviseHolder_Constructor(void)
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{
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DataAdviseHolder* newHolder;
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newHolder = HeapAlloc(GetProcessHeap(), 0, sizeof(DataAdviseHolder));
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newHolder->lpVtbl = &DataAdviseHolderImpl_VTable;
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newHolder->ref = 1;
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newHolder->maxCons = INITIAL_SINKS;
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newHolder->Connections = HeapAlloc(GetProcessHeap(),
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HEAP_ZERO_MEMORY,
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newHolder->maxCons *
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sizeof(DataAdviseConnection));
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newHolder->delegate = NULL;
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TRACE("returning %p\n", newHolder);
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return (IDataAdviseHolder*)newHolder;
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}
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/***********************************************************************
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* API functions
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*/
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/***********************************************************************
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* CreateOleAdviseHolder [OLE32.@]
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*/
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HRESULT WINAPI CreateOleAdviseHolder(
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LPOLEADVISEHOLDER *ppOAHolder)
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{
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TRACE("(%p)\n", ppOAHolder);
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/*
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* Sanity check,
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*/
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if (ppOAHolder==NULL)
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return E_POINTER;
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*ppOAHolder = OleAdviseHolderImpl_Constructor ();
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if (*ppOAHolder != NULL)
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return S_OK;
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return E_OUTOFMEMORY;
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}
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/******************************************************************************
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* CreateDataAdviseHolder [OLE32.@]
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*/
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HRESULT WINAPI CreateDataAdviseHolder(
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LPDATAADVISEHOLDER* ppDAHolder)
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{
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TRACE("(%p)\n", ppDAHolder);
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/*
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* Sanity check,
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*/
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if (ppDAHolder==NULL)
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return E_POINTER;
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*ppDAHolder = DataAdviseHolder_Constructor();
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if (*ppDAHolder != NULL)
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return S_OK;
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return E_OUTOFMEMORY;
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}
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