2 * IEnumFORMATETC, IDataObject
4 * selecting and droping objects within the shell and/or common dialogs
6 * Copyright 1998, 1999 <juergen.schmied@metronet.de>
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 #define NONAMELESSUNION
25 #define NONAMELESSSTRUCT
30 #include "shell32_main.h"
31 #include "wine/debug.h"
32 #include "undocshell.h"
34 WINE_DEFAULT_DEBUG_CHANNEL(shell);
36 /***********************************************************************
37 * IEnumFORMATETC implementation
43 IEnumFORMATETCVtbl *lpVtbl;
45 /* IEnumFORMATETC fields */
51 static HRESULT WINAPI IEnumFORMATETC_fnQueryInterface(LPENUMFORMATETC iface, REFIID riid, LPVOID* ppvObj);
52 static ULONG WINAPI IEnumFORMATETC_fnAddRef(LPENUMFORMATETC iface);
53 static ULONG WINAPI IEnumFORMATETC_fnRelease(LPENUMFORMATETC iface);
54 static HRESULT WINAPI IEnumFORMATETC_fnNext(LPENUMFORMATETC iface, ULONG celt, FORMATETC* rgelt, ULONG* pceltFethed);
55 static HRESULT WINAPI IEnumFORMATETC_fnSkip(LPENUMFORMATETC iface, ULONG celt);
56 static HRESULT WINAPI IEnumFORMATETC_fnReset(LPENUMFORMATETC iface);
57 static HRESULT WINAPI IEnumFORMATETC_fnClone(LPENUMFORMATETC iface, LPENUMFORMATETC* ppenum);
59 static struct IEnumFORMATETCVtbl efvt =
61 IEnumFORMATETC_fnQueryInterface,
62 IEnumFORMATETC_fnAddRef,
63 IEnumFORMATETC_fnRelease,
64 IEnumFORMATETC_fnNext,
65 IEnumFORMATETC_fnSkip,
66 IEnumFORMATETC_fnReset,
67 IEnumFORMATETC_fnClone
70 LPENUMFORMATETC IEnumFORMATETC_Constructor(UINT cfmt, const FORMATETC afmt[])
72 IEnumFORMATETCImpl* ef;
73 DWORD size=cfmt * sizeof(FORMATETC);
75 ef=(IEnumFORMATETCImpl*)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IEnumFORMATETCImpl));
83 ef->pFmt = SHAlloc (size);
87 memcpy(ef->pFmt, afmt, size);
91 TRACE("(%p)->(%u,%p)\n",ef, cfmt, afmt);
92 return (LPENUMFORMATETC)ef;
95 static HRESULT WINAPI IEnumFORMATETC_fnQueryInterface(LPENUMFORMATETC iface, REFIID riid, LPVOID* ppvObj)
97 IEnumFORMATETCImpl *This = (IEnumFORMATETCImpl *)iface;
98 TRACE("(%p)->(\n\tIID:\t%s,%p)\n",This,debugstr_guid(riid),ppvObj);
102 if(IsEqualIID(riid, &IID_IUnknown))
106 else if(IsEqualIID(riid, &IID_IEnumFORMATETC))
108 *ppvObj = (IEnumFORMATETC*)This;
113 IUnknown_AddRef((IUnknown*)(*ppvObj));
114 TRACE("-- Interface: (%p)->(%p)\n",ppvObj,*ppvObj);
117 TRACE("-- Interface: E_NOINTERFACE\n");
118 return E_NOINTERFACE;
122 static ULONG WINAPI IEnumFORMATETC_fnAddRef(LPENUMFORMATETC iface)
124 IEnumFORMATETCImpl *This = (IEnumFORMATETCImpl *)iface;
125 TRACE("(%p)->(count=%lu)\n",This, This->ref);
126 return ++(This->ref);
129 static ULONG WINAPI IEnumFORMATETC_fnRelease(LPENUMFORMATETC iface)
131 IEnumFORMATETCImpl *This = (IEnumFORMATETCImpl *)iface;
132 TRACE("(%p)->()\n",This);
136 TRACE(" destroying IEnumFORMATETC(%p)\n",This);
141 HeapFree(GetProcessHeap(),0,This);
147 static HRESULT WINAPI IEnumFORMATETC_fnNext(LPENUMFORMATETC iface, ULONG celt, FORMATETC *rgelt, ULONG *pceltFethed)
149 IEnumFORMATETCImpl *This = (IEnumFORMATETCImpl *)iface;
152 TRACE("(%p)->(%lu,%p)\n", This, celt, rgelt);
154 if(!This->pFmt)return S_FALSE;
155 if(!rgelt) return E_INVALIDARG;
156 if (pceltFethed) *pceltFethed = 0;
158 for(i = 0; This->posFmt < This->countFmt && celt > i; i++)
160 *rgelt++ = This->pFmt[This->posFmt++];
163 if (pceltFethed) *pceltFethed = i;
165 return ((i == celt) ? S_OK : S_FALSE);
168 static HRESULT WINAPI IEnumFORMATETC_fnSkip(LPENUMFORMATETC iface, ULONG celt)
170 IEnumFORMATETCImpl *This = (IEnumFORMATETCImpl *)iface;
171 TRACE("(%p)->(num=%lu)\n", This, celt);
173 if((This->posFmt + celt) >= This->countFmt) return S_FALSE;
174 This->posFmt += celt;
178 static HRESULT WINAPI IEnumFORMATETC_fnReset(LPENUMFORMATETC iface)
180 IEnumFORMATETCImpl *This = (IEnumFORMATETCImpl *)iface;
181 TRACE("(%p)->()\n", This);
187 static HRESULT WINAPI IEnumFORMATETC_fnClone(LPENUMFORMATETC iface, LPENUMFORMATETC* ppenum)
189 IEnumFORMATETCImpl *This = (IEnumFORMATETCImpl *)iface;
190 TRACE("(%p)->(ppenum=%p)\n", This, ppenum);
192 if (!ppenum) return E_INVALIDARG;
193 *ppenum = IEnumFORMATETC_Constructor(This->countFmt, This->pFmt);
195 IEnumFORMATETC_fnSkip(*ppenum, This->posFmt);
200 /***********************************************************************
201 * IDataObject implementation
204 /* number of supported formats */
205 #define MAX_FORMATS 4
209 /* IUnknown fields */
210 IDataObjectVtbl *lpVtbl;
213 /* IDataObject fields */
215 LPITEMIDLIST * apidl;
218 FORMATETC pFormatEtc[MAX_FORMATS];
225 static struct IDataObjectVtbl dtovt;
227 /**************************************************************************
228 * IDataObject_Constructor
230 LPDATAOBJECT IDataObject_Constructor(HWND hwndOwner, LPCITEMIDLIST pMyPidl, LPCITEMIDLIST * apidl, UINT cidl)
232 IDataObjectImpl* dto;
234 dto = (IDataObjectImpl*)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDataObjectImpl));
239 dto->lpVtbl = &dtovt;
240 dto->pidl = ILClone(pMyPidl);
241 dto->apidl = _ILCopyaPidl(apidl, cidl);
244 dto->cfShellIDList = RegisterClipboardFormatA(CFSTR_SHELLIDLIST);
245 dto->cfFileNameA = RegisterClipboardFormatA(CFSTR_FILENAMEA);
246 dto->cfFileNameW = RegisterClipboardFormatA(CFSTR_FILENAMEW);
247 InitFormatEtc(dto->pFormatEtc[0], dto->cfShellIDList, TYMED_HGLOBAL);
248 InitFormatEtc(dto->pFormatEtc[1], CF_HDROP, TYMED_HGLOBAL);
249 InitFormatEtc(dto->pFormatEtc[2], dto->cfFileNameA, TYMED_HGLOBAL);
250 InitFormatEtc(dto->pFormatEtc[3], dto->cfFileNameW, TYMED_HGLOBAL);
253 TRACE("(%p)->(apidl=%p cidl=%u)\n",dto, apidl, cidl);
254 return (LPDATAOBJECT)dto;
257 /***************************************************************************
258 * IDataObject_QueryInterface
260 static HRESULT WINAPI IDataObject_fnQueryInterface(LPDATAOBJECT iface, REFIID riid, LPVOID * ppvObj)
262 IDataObjectImpl *This = (IDataObjectImpl *)iface;
263 TRACE("(%p)->(\n\tIID:\t%s,%p)\n",This,debugstr_guid(riid),ppvObj);
267 if(IsEqualIID(riid, &IID_IUnknown)) /*IUnknown*/
271 else if(IsEqualIID(riid, &IID_IDataObject)) /*IDataObject*/
273 *ppvObj = (IDataObject*)This;
278 IUnknown_AddRef((IUnknown*)*ppvObj);
279 TRACE("-- Interface: (%p)->(%p)\n",ppvObj,*ppvObj);
282 TRACE("-- Interface: E_NOINTERFACE\n");
283 return E_NOINTERFACE;
286 /**************************************************************************
289 static ULONG WINAPI IDataObject_fnAddRef(LPDATAOBJECT iface)
291 IDataObjectImpl *This = (IDataObjectImpl *)iface;
292 TRACE("(%p)->(count=%lu)\n",This, This->ref);
293 return ++(This->ref);
296 /**************************************************************************
297 * IDataObject_Release
299 static ULONG WINAPI IDataObject_fnRelease(LPDATAOBJECT iface)
301 IDataObjectImpl *This = (IDataObjectImpl *)iface;
302 TRACE("(%p)->()\n",This);
306 TRACE(" destroying IDataObject(%p)\n",This);
307 _ILFreeaPidl(This->apidl, This->cidl);
309 HeapFree(GetProcessHeap(),0,This);
315 /**************************************************************************
316 * IDataObject_fnGetData
318 static HRESULT WINAPI IDataObject_fnGetData(LPDATAOBJECT iface, LPFORMATETC pformatetcIn, STGMEDIUM *pmedium)
320 IDataObjectImpl *This = (IDataObjectImpl *)iface;
325 GetClipboardFormatNameA (pformatetcIn->cfFormat, szTemp, 256);
326 TRACE("(%p)->(%p %p format=%s)\n", This, pformatetcIn, pmedium, szTemp);
328 if (pformatetcIn->cfFormat == This->cfShellIDList)
330 if (This->cidl < 1) return(E_UNEXPECTED);
331 pmedium->u.hGlobal = RenderSHELLIDLIST(This->pidl, This->apidl, This->cidl);
333 else if (pformatetcIn->cfFormat == CF_HDROP)
335 if (This->cidl < 1) return(E_UNEXPECTED);
336 pmedium->u.hGlobal = RenderHDROP(This->pidl, This->apidl, This->cidl);
338 else if (pformatetcIn->cfFormat == This->cfFileNameA)
340 if (This->cidl < 1) return(E_UNEXPECTED);
341 pmedium->u.hGlobal = RenderFILENAMEA(This->pidl, This->apidl, This->cidl);
343 else if (pformatetcIn->cfFormat == This->cfFileNameW)
345 if (This->cidl < 1) return(E_UNEXPECTED);
346 pmedium->u.hGlobal = RenderFILENAMEW(This->pidl, This->apidl, This->cidl);
350 FIXME("-- expected clipformat not implemented\n");
351 return (E_INVALIDARG);
353 if (pmedium->u.hGlobal)
355 pmedium->tymed = TYMED_HGLOBAL;
356 pmedium->pUnkForRelease = NULL;
359 return E_OUTOFMEMORY;
362 static HRESULT WINAPI IDataObject_fnGetDataHere(LPDATAOBJECT iface, LPFORMATETC pformatetc, STGMEDIUM *pmedium)
364 IDataObjectImpl *This = (IDataObjectImpl *)iface;
365 FIXME("(%p)->()\n", This);
369 static HRESULT WINAPI IDataObject_fnQueryGetData(LPDATAOBJECT iface, LPFORMATETC pformatetc)
371 IDataObjectImpl *This = (IDataObjectImpl *)iface;
374 TRACE("(%p)->(fmt=0x%08x tym=0x%08lx)\n", This, pformatetc->cfFormat, pformatetc->tymed);
376 if(!(DVASPECT_CONTENT & pformatetc->dwAspect))
377 return DV_E_DVASPECT;
379 /* check our formats table what we have */
380 for (i=0; i<MAX_FORMATS; i++)
382 if ((This->pFormatEtc[i].cfFormat == pformatetc->cfFormat)
383 && (This->pFormatEtc[i].tymed == pformatetc->tymed))
392 static HRESULT WINAPI IDataObject_fnGetCanonicalFormatEtc(LPDATAOBJECT iface, LPFORMATETC pformatectIn, LPFORMATETC pformatetcOut)
394 IDataObjectImpl *This = (IDataObjectImpl *)iface;
395 FIXME("(%p)->()\n", This);
399 static HRESULT WINAPI IDataObject_fnSetData(LPDATAOBJECT iface, LPFORMATETC pformatetc, STGMEDIUM *pmedium, BOOL fRelease)
401 IDataObjectImpl *This = (IDataObjectImpl *)iface;
402 FIXME("(%p)->()\n", This);
406 static HRESULT WINAPI IDataObject_fnEnumFormatEtc(LPDATAOBJECT iface, DWORD dwDirection, IEnumFORMATETC **ppenumFormatEtc)
408 IDataObjectImpl *This = (IDataObjectImpl *)iface;
410 TRACE("(%p)->()\n", This);
411 *ppenumFormatEtc=NULL;
414 if (DATADIR_GET == dwDirection)
416 *ppenumFormatEtc = IEnumFORMATETC_Constructor(MAX_FORMATS, This->pFormatEtc);
417 return (*ppenumFormatEtc) ? S_OK : E_FAIL;
423 static HRESULT WINAPI IDataObject_fnDAdvise(LPDATAOBJECT iface, FORMATETC *pformatetc, DWORD advf, IAdviseSink *pAdvSink, DWORD *pdwConnection)
425 IDataObjectImpl *This = (IDataObjectImpl *)iface;
426 FIXME("(%p)->()\n", This);
429 static HRESULT WINAPI IDataObject_fnDUnadvise(LPDATAOBJECT iface, DWORD dwConnection)
431 IDataObjectImpl *This = (IDataObjectImpl *)iface;
432 FIXME("(%p)->()\n", This);
435 static HRESULT WINAPI IDataObject_fnEnumDAdvise(LPDATAOBJECT iface, IEnumSTATDATA **ppenumAdvise)
437 IDataObjectImpl *This = (IDataObjectImpl *)iface;
438 FIXME("(%p)->()\n", This);
442 static struct IDataObjectVtbl dtovt =
444 IDataObject_fnQueryInterface,
445 IDataObject_fnAddRef,
446 IDataObject_fnRelease,
447 IDataObject_fnGetData,
448 IDataObject_fnGetDataHere,
449 IDataObject_fnQueryGetData,
450 IDataObject_fnGetCanonicalFormatEtc,
451 IDataObject_fnSetData,
452 IDataObject_fnEnumFormatEtc,
453 IDataObject_fnDAdvise,
454 IDataObject_fnDUnadvise,
455 IDataObject_fnEnumDAdvise