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Sweden-Number/dlls/shell32/dataobject.c

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/*
* IEnumFORMATETC, IDataObject
*
* selecting and dropping objects within the shell and/or common dialogs
*
* Copyright 1998, 1999 <juergen.schmied@metronet.de>
*
* 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 <string.h>
#define COBJMACROS
#define NONAMELESSUNION
#include "windef.h"
#include "wingdi.h"
#include "pidl.h"
#include "winerror.h"
#include "shell32_main.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(shell);
/***********************************************************************
* IEnumFORMATETC implementation
*/
typedef struct
{
/* IUnknown fields */
IEnumFORMATETC IEnumFORMATETC_iface;
LONG ref;
/* IEnumFORMATETC fields */
UINT posFmt;
UINT countFmt;
LPFORMATETC pFmt;
} IEnumFORMATETCImpl;
static inline IEnumFORMATETCImpl *impl_from_IEnumFORMATETC(IEnumFORMATETC *iface)
{
return CONTAINING_RECORD(iface, IEnumFORMATETCImpl, IEnumFORMATETC_iface);
}
static HRESULT WINAPI IEnumFORMATETC_fnQueryInterface(
LPENUMFORMATETC iface, REFIID riid, LPVOID* ppvObj)
{
IEnumFORMATETCImpl *This = impl_from_IEnumFORMATETC(iface);
TRACE("(%p)->(\n\tIID:\t%s,%p)\n",This,debugstr_guid(riid),ppvObj);
*ppvObj = NULL;
if(IsEqualIID(riid, &IID_IUnknown) ||
IsEqualIID(riid, &IID_IEnumFORMATETC))
{
*ppvObj = &This->IEnumFORMATETC_iface;
}
if(*ppvObj)
{
IUnknown_AddRef((IUnknown*)(*ppvObj));
TRACE("-- Interface: (%p)->(%p)\n",ppvObj,*ppvObj);
return S_OK;
}
TRACE("-- Interface: E_NOINTERFACE\n");
return E_NOINTERFACE;
}
static ULONG WINAPI IEnumFORMATETC_fnAddRef(LPENUMFORMATETC iface)
{
IEnumFORMATETCImpl *This = impl_from_IEnumFORMATETC(iface);
ULONG refCount = InterlockedIncrement(&This->ref);
TRACE("(%p)->(count=%u)\n", This, refCount - 1);
return refCount;
}
static ULONG WINAPI IEnumFORMATETC_fnRelease(LPENUMFORMATETC iface)
{
IEnumFORMATETCImpl *This = impl_from_IEnumFORMATETC(iface);
ULONG refCount = InterlockedDecrement(&This->ref);
TRACE("(%p)->(%u)\n", This, refCount + 1);
if (!refCount)
{
TRACE(" destroying IEnumFORMATETC(%p)\n",This);
SHFree (This->pFmt);
heap_free(This);
}
return refCount;
}
static HRESULT WINAPI IEnumFORMATETC_fnNext(LPENUMFORMATETC iface, ULONG celt, FORMATETC *rgelt, ULONG *pceltFethed)
{
IEnumFORMATETCImpl *This = impl_from_IEnumFORMATETC(iface);
UINT i;
TRACE("(%p)->(%u,%p)\n", This, celt, rgelt);
if(!This->pFmt)return S_FALSE;
if(!rgelt) return E_INVALIDARG;
if (pceltFethed) *pceltFethed = 0;
for(i = 0; This->posFmt < This->countFmt && celt > i; i++)
{
*rgelt++ = This->pFmt[This->posFmt++];
}
if (pceltFethed) *pceltFethed = i;
return ((i == celt) ? S_OK : S_FALSE);
}
static HRESULT WINAPI IEnumFORMATETC_fnSkip(LPENUMFORMATETC iface, ULONG celt)
{
IEnumFORMATETCImpl *This = impl_from_IEnumFORMATETC(iface);
TRACE("(%p)->(num=%u)\n", This, celt);
if((This->posFmt + celt) >= This->countFmt) return S_FALSE;
This->posFmt += celt;
return S_OK;
}
static HRESULT WINAPI IEnumFORMATETC_fnReset(LPENUMFORMATETC iface)
{
IEnumFORMATETCImpl *This = impl_from_IEnumFORMATETC(iface);
TRACE("(%p)->()\n", This);
This->posFmt = 0;
return S_OK;
}
static HRESULT WINAPI IEnumFORMATETC_fnClone(LPENUMFORMATETC iface, LPENUMFORMATETC* ppenum)
{
IEnumFORMATETCImpl *This = impl_from_IEnumFORMATETC(iface);
TRACE("(%p)->(ppenum=%p)\n", This, ppenum);
if (!ppenum) return E_INVALIDARG;
*ppenum = IEnumFORMATETC_Constructor(This->countFmt, This->pFmt);
if(*ppenum)
IEnumFORMATETC_fnSkip(*ppenum, This->posFmt);
return S_OK;
}
static const IEnumFORMATETCVtbl efvt =
{
IEnumFORMATETC_fnQueryInterface,
IEnumFORMATETC_fnAddRef,
IEnumFORMATETC_fnRelease,
IEnumFORMATETC_fnNext,
IEnumFORMATETC_fnSkip,
IEnumFORMATETC_fnReset,
IEnumFORMATETC_fnClone
};
LPENUMFORMATETC IEnumFORMATETC_Constructor(UINT cfmt, const FORMATETC afmt[])
{
IEnumFORMATETCImpl* ef;
DWORD size=cfmt * sizeof(FORMATETC);
ef = heap_alloc_zero(sizeof(*ef));
if(ef)
{
ef->ref=1;
ef->IEnumFORMATETC_iface.lpVtbl = &efvt;
ef->countFmt = cfmt;
ef->pFmt = SHAlloc (size);
if (ef->pFmt)
memcpy(ef->pFmt, afmt, size);
}
TRACE("(%p)->(%u,%p)\n",ef, cfmt, afmt);
return &ef->IEnumFORMATETC_iface;
}
/***********************************************************************
* IDataObject implementation
*/
/* number of supported formats */
#define MAX_FORMATS 4
typedef struct
{
/* IUnknown fields */
IDataObject IDataObject_iface;
LONG ref;
/* IDataObject fields */
LPITEMIDLIST pidl;
LPITEMIDLIST * apidl;
UINT cidl;
FORMATETC pFormatEtc[MAX_FORMATS];
UINT cfShellIDList;
UINT cfFileNameA;
UINT cfFileNameW;
} IDataObjectImpl;
static inline IDataObjectImpl *impl_from_IDataObject(IDataObject *iface)
{
return CONTAINING_RECORD(iface, IDataObjectImpl, IDataObject_iface);
}
/***************************************************************************
* IDataObject_QueryInterface
*/
static HRESULT WINAPI IDataObject_fnQueryInterface(IDataObject *iface, REFIID riid, LPVOID * ppvObj)
{
IDataObjectImpl *This = impl_from_IDataObject(iface);
TRACE("(%p)->(\n\tIID:\t%s,%p)\n",This,debugstr_guid(riid),ppvObj);
*ppvObj = NULL;
if(IsEqualIID(riid, &IID_IUnknown) ||
IsEqualIID(riid, &IID_IDataObject))
{
*ppvObj = &This->IDataObject_iface;
}
if(*ppvObj)
{
IUnknown_AddRef((IUnknown*)*ppvObj);
TRACE("-- Interface: (%p)->(%p)\n",ppvObj,*ppvObj);
return S_OK;
}
TRACE("-- Interface: E_NOINTERFACE\n");
return E_NOINTERFACE;
}
/**************************************************************************
* IDataObject_AddRef
*/
static ULONG WINAPI IDataObject_fnAddRef(IDataObject *iface)
{
IDataObjectImpl *This = impl_from_IDataObject(iface);
ULONG refCount = InterlockedIncrement(&This->ref);
TRACE("(%p)->(count=%u)\n", This, refCount - 1);
return refCount;
}
/**************************************************************************
* IDataObject_Release
*/
static ULONG WINAPI IDataObject_fnRelease(IDataObject *iface)
{
IDataObjectImpl *This = impl_from_IDataObject(iface);
ULONG refCount = InterlockedDecrement(&This->ref);
TRACE("(%p)->(%u)\n", This, refCount + 1);
if (!refCount)
{
TRACE(" destroying IDataObject(%p)\n",This);
_ILFreeaPidl(This->apidl, This->cidl);
ILFree(This->pidl);
heap_free(This);
}
return refCount;
}
/**************************************************************************
* IDataObject_fnGetData
*/
static HRESULT WINAPI IDataObject_fnGetData(IDataObject *iface, LPFORMATETC pformatetcIn, STGMEDIUM *pmedium)
{
IDataObjectImpl *This = impl_from_IDataObject(iface);
char szTemp[256];
szTemp[0]=0;
GetClipboardFormatNameA (pformatetcIn->cfFormat, szTemp, 256);
TRACE("(%p)->(%p %p format=%s)\n", This, pformatetcIn, pmedium, szTemp);
if (pformatetcIn->cfFormat == This->cfShellIDList)
{
if (This->cidl < 1) return(E_UNEXPECTED);
pmedium->u.hGlobal = RenderSHELLIDLIST(This->pidl, This->apidl, This->cidl);
}
else if (pformatetcIn->cfFormat == CF_HDROP)
{
if (This->cidl < 1) return(E_UNEXPECTED);
pmedium->u.hGlobal = RenderHDROP(This->pidl, This->apidl, This->cidl);
}
else if (pformatetcIn->cfFormat == This->cfFileNameA)
{
if (This->cidl < 1) return(E_UNEXPECTED);
pmedium->u.hGlobal = RenderFILENAMEA(This->pidl, This->apidl, This->cidl);
}
else if (pformatetcIn->cfFormat == This->cfFileNameW)
{
if (This->cidl < 1) return(E_UNEXPECTED);
pmedium->u.hGlobal = RenderFILENAMEW(This->pidl, This->apidl, This->cidl);
}
else
{
FIXME("-- expected clipformat not implemented\n");
return (E_INVALIDARG);
}
if (pmedium->u.hGlobal)
{
pmedium->tymed = TYMED_HGLOBAL;
pmedium->pUnkForRelease = NULL;
return S_OK;
}
return E_OUTOFMEMORY;
}
static HRESULT WINAPI IDataObject_fnGetDataHere(IDataObject *iface, LPFORMATETC pformatetc, STGMEDIUM *pmedium)
{
IDataObjectImpl *This = impl_from_IDataObject(iface);
FIXME("(%p)->()\n", This);
return E_NOTIMPL;
}
static HRESULT WINAPI IDataObject_fnQueryGetData(IDataObject *iface, LPFORMATETC pformatetc)
{
IDataObjectImpl *This = impl_from_IDataObject(iface);
UINT i;
TRACE("(%p)->(fmt=0x%08x tym=0x%08x)\n", This, pformatetc->cfFormat, pformatetc->tymed);
if(!(DVASPECT_CONTENT & pformatetc->dwAspect))
return DV_E_DVASPECT;
/* check our formats table what we have */
for (i=0; i<MAX_FORMATS; i++)
{
if ((This->pFormatEtc[i].cfFormat == pformatetc->cfFormat)
&& (This->pFormatEtc[i].tymed & pformatetc->tymed))
{
return S_OK;
}
}
return DV_E_TYMED;
}
static HRESULT WINAPI IDataObject_fnGetCanonicalFormatEtc(IDataObject *iface, LPFORMATETC pformatectIn, LPFORMATETC pformatetcOut)
{
IDataObjectImpl *This = impl_from_IDataObject(iface);
FIXME("(%p)->()\n", This);
return E_NOTIMPL;
}
static HRESULT WINAPI IDataObject_fnSetData(IDataObject *iface, LPFORMATETC pformatetc, STGMEDIUM *pmedium, BOOL fRelease)
{
IDataObjectImpl *This = impl_from_IDataObject(iface);
FIXME("(%p)->()\n", This);
return E_NOTIMPL;
}
static HRESULT WINAPI IDataObject_fnEnumFormatEtc(IDataObject *iface, DWORD dwDirection, IEnumFORMATETC **ppenumFormatEtc)
{
IDataObjectImpl *This = impl_from_IDataObject(iface);
TRACE("(%p)->()\n", This);
*ppenumFormatEtc=NULL;
/* only get data */
if (DATADIR_GET == dwDirection)
{
*ppenumFormatEtc = IEnumFORMATETC_Constructor(MAX_FORMATS, This->pFormatEtc);
return (*ppenumFormatEtc) ? S_OK : E_FAIL;
}
return E_NOTIMPL;
}
static HRESULT WINAPI IDataObject_fnDAdvise(IDataObject *iface, FORMATETC *pformatetc, DWORD advf, IAdviseSink *pAdvSink, DWORD *pdwConnection)
{
IDataObjectImpl *This = impl_from_IDataObject(iface);
FIXME("(%p)->()\n", This);
return E_NOTIMPL;
}
static HRESULT WINAPI IDataObject_fnDUnadvise(IDataObject *iface, DWORD dwConnection)
{
IDataObjectImpl *This = impl_from_IDataObject(iface);
FIXME("(%p)->()\n", This);
return E_NOTIMPL;
}
static HRESULT WINAPI IDataObject_fnEnumDAdvise(IDataObject *iface, IEnumSTATDATA **ppenumAdvise)
{
IDataObjectImpl *This = impl_from_IDataObject(iface);
FIXME("(%p)->()\n", This);
return E_NOTIMPL;
}
static const IDataObjectVtbl dtovt =
{
IDataObject_fnQueryInterface,
IDataObject_fnAddRef,
IDataObject_fnRelease,
IDataObject_fnGetData,
IDataObject_fnGetDataHere,
IDataObject_fnQueryGetData,
IDataObject_fnGetCanonicalFormatEtc,
IDataObject_fnSetData,
IDataObject_fnEnumFormatEtc,
IDataObject_fnDAdvise,
IDataObject_fnDUnadvise,
IDataObject_fnEnumDAdvise
};
/**************************************************************************
* IDataObject_Constructor
*/
IDataObject* IDataObject_Constructor(HWND hwndOwner,
LPCITEMIDLIST pMyPidl, LPCITEMIDLIST * apidl, UINT cidl)
{
IDataObjectImpl* dto;
dto = heap_alloc_zero(sizeof(*dto));
if (dto)
{
dto->ref = 1;
dto->IDataObject_iface.lpVtbl = &dtovt;
dto->pidl = ILClone(pMyPidl);
dto->apidl = _ILCopyaPidl(apidl, cidl);
dto->cidl = cidl;
dto->cfShellIDList = RegisterClipboardFormatW(CFSTR_SHELLIDLISTW);
dto->cfFileNameA = RegisterClipboardFormatA(CFSTR_FILENAMEA);
dto->cfFileNameW = RegisterClipboardFormatW(CFSTR_FILENAMEW);
InitFormatEtc(dto->pFormatEtc[0], dto->cfShellIDList, TYMED_HGLOBAL);
InitFormatEtc(dto->pFormatEtc[1], CF_HDROP, TYMED_HGLOBAL);
InitFormatEtc(dto->pFormatEtc[2], dto->cfFileNameA, TYMED_HGLOBAL);
InitFormatEtc(dto->pFormatEtc[3], dto->cfFileNameW, TYMED_HGLOBAL);
}
TRACE("(%p)->(apidl=%p cidl=%u)\n",dto, apidl, cidl);
return &dto->IDataObject_iface;
}
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