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wine/dlls/ole32/ole2impl.c

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/*
* Ole 2 Create functions implementation
*
* Copyright (C) 1999-2000 Abey George
*
* 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 <stdarg.h>
#include <string.h>
#define COBJMACROS
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "wine/debug.h"
#include "ole2.h"
#include "olestd.h"
#include "compobj_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(ole);
#define MAX_CLIPFORMAT_NAME 80
/******************************************************************************
* OleQueryCreateFromData [OLE32.@]
*
* Checks whether an object can become an embedded object.
* the clipboard or OLE drag and drop.
* Returns : S_OK - Format that supports Embedded object creation are present.
* OLE_E_STATIC - Format that supports static object creation are present.
* S_FALSE - No acceptable format is available.
*/
HRESULT WINAPI OleQueryCreateFromData(IDataObject *data)
{
IEnumFORMATETC *enum_fmt;
FORMATETC fmt;
BOOL found_static = FALSE;
HRESULT hr;
hr = IDataObject_EnumFormatEtc(data, DATADIR_GET, &enum_fmt);
if(FAILED(hr)) return hr;
do
{
hr = IEnumFORMATETC_Next(enum_fmt, 1, &fmt, NULL);
if(hr == S_OK)
{
if(fmt.cfFormat == embedded_object_clipboard_format ||
fmt.cfFormat == embed_source_clipboard_format ||
fmt.cfFormat == filename_clipboard_format)
{
IEnumFORMATETC_Release(enum_fmt);
return S_OK;
}
if(fmt.cfFormat == CF_METAFILEPICT ||
fmt.cfFormat == CF_BITMAP ||
fmt.cfFormat == CF_DIB)
found_static = TRUE;
}
} while (hr == S_OK);
IEnumFORMATETC_Release(enum_fmt);
return found_static ? OLE_S_STATIC : S_FALSE;
}
static inline void init_fmtetc(FORMATETC *fmt, CLIPFORMAT cf, TYMED tymed)
{
fmt->cfFormat = cf;
fmt->ptd = NULL;
fmt->dwAspect = DVASPECT_CONTENT;
fmt->lindex = -1;
fmt->tymed = tymed;
}
/***************************************************************************
* get_storage
*
* Retrieve an object's storage from a variety of sources.
*
* FIXME: CF_FILENAME.
*/
static HRESULT get_storage(IDataObject *data, IStorage *stg, UINT *src_cf)
{
HRESULT hr;
FORMATETC fmt;
STGMEDIUM med;
IPersistStorage *persist;
CLSID clsid;
*src_cf = 0;
/* CF_EMBEDEDOBJECT */
init_fmtetc(&fmt, embedded_object_clipboard_format, TYMED_ISTORAGE);
med.tymed = TYMED_ISTORAGE;
med.u.pstg = stg;
hr = IDataObject_GetDataHere(data, &fmt, &med);
if(SUCCEEDED(hr))
{
*src_cf = embedded_object_clipboard_format;
return hr;
}
/* CF_EMBEDSOURCE */
init_fmtetc(&fmt, embed_source_clipboard_format, TYMED_ISTORAGE);
med.tymed = TYMED_ISTORAGE;
med.u.pstg = stg;
hr = IDataObject_GetDataHere(data, &fmt, &med);
if(SUCCEEDED(hr))
{
*src_cf = embed_source_clipboard_format;
return hr;
}
/* IPersistStorage */
hr = IDataObject_QueryInterface(data, &IID_IPersistStorage, (void**)&persist);
if(FAILED(hr)) return hr;
hr = IPersistStorage_GetClassID(persist, &clsid);
if(FAILED(hr)) goto end;
hr = IStorage_SetClass(stg, &clsid);
if(FAILED(hr)) goto end;
hr = IPersistStorage_Save(persist, stg, FALSE);
if(FAILED(hr)) goto end;
hr = IPersistStorage_SaveCompleted(persist, NULL);
end:
IPersistStorage_Release(persist);
return hr;
}
/******************************************************************************
* OleCreateFromDataEx [OLE32.@]
*
* Creates an embedded object from data transfer object retrieved from
* the clipboard or OLE drag and drop.
*/
HRESULT WINAPI OleCreateFromDataEx(IDataObject *data, REFIID iid, DWORD flags,
DWORD renderopt, ULONG num_cache_fmts, DWORD *adv_flags, FORMATETC *cache_fmts,
IAdviseSink *sink, DWORD *conns,
IOleClientSite *client_site, IStorage *stg, void **obj)
{
HRESULT hr;
UINT src_cf;
FIXME("(%p, %s, %08x, %08x, %d, %p, %p, %p, %p, %p, %p, %p): stub\n",
data, debugstr_guid(iid), flags, renderopt, num_cache_fmts, adv_flags, cache_fmts,
sink, conns, client_site, stg, obj);
hr = get_storage(data, stg, &src_cf);
if(FAILED(hr)) return hr;
hr = OleLoad(stg, iid, client_site, obj);
if(FAILED(hr)) return hr;
/* FIXME: Init cache */
return hr;
}
/******************************************************************************
* OleCreateFromData [OLE32.@]
*
* Author : Abey George
* Creates an embedded object from data transfer object retrieved from
* the clipboard or OLE drag and drop.
* Returns : S_OK - Embedded object was created successfully.
* OLE_E_STATIC - OLE can create only a static object
* DV_E_FORMATETC - No acceptable format is available (only error return code)
* TODO : CF_FILENAME, CF_EMBEDEDOBJECT formats. Parameter renderopt is currently ignored.
*/
HRESULT WINAPI OleCreateFromData(LPDATAOBJECT pSrcDataObject, REFIID riid,
DWORD renderopt, LPFORMATETC pFormatEtc,
LPOLECLIENTSITE pClientSite, LPSTORAGE pStg,
LPVOID* ppvObj)
{
IEnumFORMATETC *pfmt;
FORMATETC fmt;
CHAR szFmtName[MAX_CLIPFORMAT_NAME];
STGMEDIUM std;
HRESULT hr;
HRESULT hr1;
hr = IDataObject_EnumFormatEtc(pSrcDataObject, DATADIR_GET, &pfmt);
if (hr == S_OK)
{
memset(&std, 0, sizeof(STGMEDIUM));
hr = IEnumFORMATETC_Next(pfmt, 1, &fmt, NULL);
while (hr == S_OK)
{
GetClipboardFormatNameA(fmt.cfFormat, szFmtName, MAX_CLIPFORMAT_NAME-1);
/* first, Check for Embedded Object, Embed Source or Filename */
/* TODO: Currently checks only for Embed Source. */
if (!strcmp(szFmtName, CF_EMBEDSOURCE))
{
std.tymed = TYMED_HGLOBAL;
if ((hr1 = IDataObject_GetData(pSrcDataObject, &fmt, &std)) == S_OK)
{
ILockBytes *ptrILockBytes = 0;
IStorage *pStorage = 0;
IOleObject *pOleObject = 0;
IPersistStorage *pPersistStorage = 0;
CLSID clsID;
/* Create ILock bytes */
hr1 = CreateILockBytesOnHGlobal(std.u.hGlobal, FALSE, &ptrILockBytes);
/* Open storage on the ILock bytes */
if (hr1 == S_OK)
hr1 = StgOpenStorageOnILockBytes(ptrILockBytes, NULL, STGM_SHARE_EXCLUSIVE, NULL, 0, &pStorage);
/* Get Class ID from the opened storage */
if (hr1 == S_OK)
hr1 = ReadClassStg(pStorage, &clsID);
/* Create default handler for Persist storage */
if (hr1 == S_OK)
hr1 = OleCreateDefaultHandler(&clsID, NULL, &IID_IPersistStorage, (LPVOID*)&pPersistStorage);
/* Load the storage to Persist storage */
if (hr1 == S_OK)
hr1 = IPersistStorage_Load(pPersistStorage, pStorage);
/* Query for IOleObject */
if (hr1 == S_OK)
hr1 = IPersistStorage_QueryInterface(pPersistStorage, &IID_IOleObject, (LPVOID*)&pOleObject);
/* Set client site with the IOleObject */
if (hr1 == S_OK)
hr1 = IOleObject_SetClientSite(pOleObject, pClientSite);
IPersistStorage_Release(pPersistStorage);
/* Query for the requested interface */
if (hr1 == S_OK)
hr1 = IPersistStorage_QueryInterface(pPersistStorage, riid, ppvObj);
IPersistStorage_Release(pPersistStorage);
IStorage_Release(pStorage);
if (hr1 == S_OK)
return S_OK;
}
/* Return error */
return DV_E_FORMATETC;
}
hr = IEnumFORMATETC_Next(pfmt, 1, &fmt, NULL);
}
}
return DV_E_FORMATETC;
}
/******************************************************************************
* OleDuplicateData [OLE32.@]
*
* Duplicates clipboard data.
*
* PARAMS
* hSrc [I] Handle of the source clipboard data.
* cfFormat [I] The clipboard format of hSrc.
* uiFlags [I] Flags to pass to GlobalAlloc.
*
* RETURNS
* Success: handle to the duplicated data.
* Failure: NULL.
*/
HANDLE WINAPI OleDuplicateData(HANDLE hSrc, CLIPFORMAT cfFormat,
UINT uiFlags)
{
HANDLE hDst = NULL;
TRACE("(%p,%x,%x)\n", hSrc, cfFormat, uiFlags);
if (!uiFlags) uiFlags = GMEM_MOVEABLE;
switch (cfFormat)
{
case CF_ENHMETAFILE:
hDst = CopyEnhMetaFileW(hSrc, NULL);
break;
case CF_METAFILEPICT:
hDst = CopyMetaFileW(hSrc, NULL);
break;
case CF_PALETTE:
{
LOGPALETTE * logpalette;
UINT nEntries = GetPaletteEntries(hSrc, 0, 0, NULL);
if (!nEntries) return NULL;
logpalette = HeapAlloc(GetProcessHeap(), 0,
FIELD_OFFSET(LOGPALETTE, palPalEntry[nEntries]));
if (!logpalette) return NULL;
if (!GetPaletteEntries(hSrc, 0, nEntries, logpalette->palPalEntry))
{
HeapFree(GetProcessHeap(), 0, logpalette);
return NULL;
}
logpalette->palVersion = 0x300;
logpalette->palNumEntries = (WORD)nEntries;
hDst = CreatePalette(logpalette);
HeapFree(GetProcessHeap(), 0, logpalette);
break;
}
case CF_BITMAP:
{
LONG size;
BITMAP bm;
if (!GetObjectW(hSrc, sizeof(bm), &bm))
return NULL;
size = GetBitmapBits(hSrc, 0, NULL);
if (!size) return NULL;
bm.bmBits = HeapAlloc(GetProcessHeap(), 0, size);
if (!bm.bmBits) return NULL;
if (GetBitmapBits(hSrc, size, bm.bmBits))
hDst = CreateBitmapIndirect(&bm);
HeapFree(GetProcessHeap(), 0, bm.bmBits);
break;
}
default:
{
SIZE_T size = GlobalSize(hSrc);
LPVOID pvSrc = NULL;
LPVOID pvDst = NULL;
/* allocate space for object */
if (!size) return NULL;
hDst = GlobalAlloc(uiFlags, size);
if (!hDst) return NULL;
/* lock pointers */
pvSrc = GlobalLock(hSrc);
if (!pvSrc)
{
GlobalFree(hDst);
return NULL;
}
pvDst = GlobalLock(hDst);
if (!pvDst)
{
GlobalUnlock(hSrc);
GlobalFree(hDst);
return NULL;
}
/* copy data */
memcpy(pvDst, pvSrc, size);
/* cleanup */
GlobalUnlock(hDst);
GlobalUnlock(hSrc);
}
}
TRACE("returning %p\n", hDst);
return hDst;
}
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