Sweden-Number/dlls/riched20/clipboard.c

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/*
* Richedit clipboard handling
*
* Copyright (C) 2006 Kevin Koltzau
*
* 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 "editor.h"
WINE_DEFAULT_DEBUG_CHANNEL(richedit);
static UINT cfRTF = 0;
typedef struct DataObjectImpl {
const IDataObjectVtbl *lpVtbl;
LONG ref;
FORMATETC *fmtetc;
UINT fmtetc_cnt;
HANDLE unicode;
HANDLE rtf;
} DataObjectImpl;
typedef struct EnumFormatImpl {
const IEnumFORMATETCVtbl *lpVtbl;
LONG ref;
FORMATETC *fmtetc;
UINT fmtetc_cnt;
UINT cur;
} EnumFormatImpl;
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static HRESULT EnumFormatImpl_Create(const FORMATETC *fmtetc, UINT size, LPENUMFORMATETC *lplpformatetc);
static HRESULT WINAPI EnumFormatImpl_QueryInterface(IEnumFORMATETC *iface, REFIID riid, LPVOID *ppvObj)
{
EnumFormatImpl *This = (EnumFormatImpl*)iface;
TRACE("%p %s\n", This, debugstr_guid(riid));
if (IsEqualGUID(riid, &IID_IUnknown) || IsEqualGUID(riid, &IID_IEnumFORMATETC)) {
IEnumFORMATETC_AddRef(iface);
*ppvObj = This;
return S_OK;
}
*ppvObj = NULL;
return E_NOINTERFACE;
}
static ULONG WINAPI EnumFormatImpl_AddRef(IEnumFORMATETC *iface)
{
EnumFormatImpl *This = (EnumFormatImpl*)iface;
LONG ref = InterlockedIncrement(&This->ref);
TRACE("(%p) ref=%d\n", This, ref);
return ref;
}
static ULONG WINAPI EnumFormatImpl_Release(IEnumFORMATETC *iface)
{
EnumFormatImpl *This = (EnumFormatImpl*)iface;
ULONG ref = InterlockedDecrement(&This->ref);
TRACE("(%p) ref=%d\n", This, ref);
if(!ref) {
GlobalFree(This->fmtetc);
heap_free(This);
}
return ref;
}
static HRESULT WINAPI EnumFormatImpl_Next(IEnumFORMATETC *iface, ULONG celt,
FORMATETC *rgelt, ULONG *pceltFetched)
{
EnumFormatImpl *This = (EnumFormatImpl*)iface;
ULONG count = 0;
TRACE("(%p)->(%d %p %p)\n", This, celt, rgelt, pceltFetched);
if(!rgelt)
return E_INVALIDARG;
count = min(celt, This->fmtetc_cnt-This->cur);
if(count > 0) {
memcpy(rgelt, This->fmtetc+This->cur, count*sizeof(FORMATETC));
This->cur += count;
}
if(pceltFetched)
*pceltFetched = count;
return count == celt ? S_OK : S_FALSE;
}
static HRESULT WINAPI EnumFormatImpl_Skip(IEnumFORMATETC *iface, ULONG celt)
{
EnumFormatImpl *This = (EnumFormatImpl*)iface;
ULONG count = 0;
TRACE("(%p)->(%d)\n", This, celt);
count = min(celt, This->fmtetc_cnt-This->cur);
This->cur += count;
return count == celt ? S_OK : S_FALSE;
}
static HRESULT WINAPI EnumFormatImpl_Reset(IEnumFORMATETC *iface)
{
EnumFormatImpl *This = (EnumFormatImpl*)iface;
TRACE("(%p)\n", This);
This->cur = 0;
return S_OK;
}
static HRESULT WINAPI EnumFormatImpl_Clone(IEnumFORMATETC *iface, IEnumFORMATETC **ppenum)
{
EnumFormatImpl *This = (EnumFormatImpl*)iface;
HRESULT hr;
TRACE("(%p)->(%p)\n", This, ppenum);
if(!ppenum)
return E_INVALIDARG;
hr = EnumFormatImpl_Create(This->fmtetc, This->fmtetc_cnt, ppenum);
if(SUCCEEDED(hr))
hr = IEnumFORMATETC_Skip(*ppenum, This->cur);
return hr;
}
static const IEnumFORMATETCVtbl VT_EnumFormatImpl = {
EnumFormatImpl_QueryInterface,
EnumFormatImpl_AddRef,
EnumFormatImpl_Release,
EnumFormatImpl_Next,
EnumFormatImpl_Skip,
EnumFormatImpl_Reset,
EnumFormatImpl_Clone
};
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static HRESULT EnumFormatImpl_Create(const FORMATETC *fmtetc, UINT fmtetc_cnt, IEnumFORMATETC **lplpformatetc)
{
EnumFormatImpl *ret;
TRACE("\n");
ret = heap_alloc(sizeof(EnumFormatImpl));
ret->lpVtbl = &VT_EnumFormatImpl;
ret->ref = 1;
ret->cur = 0;
ret->fmtetc_cnt = fmtetc_cnt;
ret->fmtetc = GlobalAlloc(GMEM_ZEROINIT, fmtetc_cnt*sizeof(FORMATETC));
memcpy(ret->fmtetc, fmtetc, fmtetc_cnt*sizeof(FORMATETC));
*lplpformatetc = (LPENUMFORMATETC)ret;
return S_OK;
}
static HRESULT WINAPI DataObjectImpl_QueryInterface(IDataObject *iface, REFIID riid, LPVOID *ppvObj)
{
DataObjectImpl *This = (DataObjectImpl*)iface;
TRACE("(%p)->(%s)\n", This, debugstr_guid(riid));
if (IsEqualGUID(riid, &IID_IUnknown) || IsEqualGUID(riid, &IID_IDataObject)) {
IDataObject_AddRef(iface);
*ppvObj = This;
return S_OK;
}
*ppvObj = NULL;
return E_NOINTERFACE;
}
static ULONG WINAPI DataObjectImpl_AddRef(IDataObject* iface)
{
DataObjectImpl *This = (DataObjectImpl*)iface;
ULONG ref = InterlockedIncrement(&This->ref);
TRACE("(%p) ref=%d\n", This, ref);
return ref;
}
static ULONG WINAPI DataObjectImpl_Release(IDataObject* iface)
{
DataObjectImpl *This = (DataObjectImpl*)iface;
ULONG ref = InterlockedDecrement(&This->ref);
TRACE("(%p) ref=%d\n",This, ref);
if(!ref) {
if(This->unicode) GlobalFree(This->unicode);
if(This->rtf) GlobalFree(This->rtf);
if(This->fmtetc) GlobalFree(This->fmtetc);
heap_free(This);
}
return ref;
}
static HRESULT WINAPI DataObjectImpl_GetData(IDataObject* iface, FORMATETC *pformatetc, STGMEDIUM *pmedium)
{
DataObjectImpl *This = (DataObjectImpl*)iface;
TRACE("(%p)->(fmt=0x%08x tym=0x%08x)\n", This, pformatetc->cfFormat, pformatetc->tymed);
if(pformatetc->lindex != -1)
return DV_E_LINDEX;
if(!(pformatetc->tymed & TYMED_HGLOBAL))
return DV_E_TYMED;
if(This->unicode && pformatetc->cfFormat == CF_UNICODETEXT)
pmedium->u.hGlobal = This->unicode;
else if(This->rtf && pformatetc->cfFormat == cfRTF)
pmedium->u.hGlobal = This->rtf;
else
return DV_E_FORMATETC;
pmedium->tymed = TYMED_HGLOBAL;
pmedium->pUnkForRelease = (LPUNKNOWN)iface;
IUnknown_AddRef(pmedium->pUnkForRelease);
return S_OK;
}
static HRESULT WINAPI DataObjectImpl_GetDataHere(IDataObject* iface, FORMATETC *pformatetc, STGMEDIUM *pmedium)
{
DataObjectImpl *This = (DataObjectImpl*)iface;
FIXME("(%p): stub\n", This);
return E_NOTIMPL;
}
static HRESULT WINAPI DataObjectImpl_QueryGetData(IDataObject* iface, FORMATETC *pformatetc)
{
DataObjectImpl *This = (DataObjectImpl*)iface;
UINT i;
BOOL foundFormat = FALSE;
TRACE("(%p)->(fmt=0x%08x tym=0x%08x)\n", This, pformatetc->cfFormat, pformatetc->tymed);
if(pformatetc->lindex != -1)
return DV_E_LINDEX;
for(i=0; i<This->fmtetc_cnt; i++) {
if(This->fmtetc[i].cfFormat == pformatetc->cfFormat) {
foundFormat = TRUE;
if(This->fmtetc[i].tymed == pformatetc->tymed)
return S_OK;
}
}
return foundFormat?DV_E_FORMATETC:DV_E_TYMED;
}
static HRESULT WINAPI DataObjectImpl_GetCanonicalFormatEtc(IDataObject* iface, FORMATETC *pformatetcIn,
FORMATETC *pformatetcOut)
{
DataObjectImpl *This = (DataObjectImpl*)iface;
TRACE("(%p)->(%p,%p)\n", This, pformatetcIn, pformatetcOut);
if(pformatetcOut) {
*pformatetcOut = *pformatetcIn;
pformatetcOut->ptd = NULL;
}
return DATA_S_SAMEFORMATETC;
}
static HRESULT WINAPI DataObjectImpl_SetData(IDataObject* iface, FORMATETC *pformatetc,
STGMEDIUM *pmedium, BOOL fRelease)
{
DataObjectImpl *This = (DataObjectImpl*)iface;
FIXME("(%p): stub\n", This);
return E_NOTIMPL;
}
static HRESULT WINAPI DataObjectImpl_EnumFormatEtc(IDataObject* iface, DWORD dwDirection,
IEnumFORMATETC **ppenumFormatEtc)
{
DataObjectImpl *This = (DataObjectImpl*)iface;
TRACE("(%p)->(%d)\n", This, dwDirection);
if(dwDirection != DATADIR_GET) {
FIXME("Unsupported direction: %d\n", dwDirection);
/* WinXP riched20 also returns E_NOTIMPL in this case */
*ppenumFormatEtc = NULL;
return E_NOTIMPL;
}
return EnumFormatImpl_Create(This->fmtetc, This->fmtetc_cnt, ppenumFormatEtc);
}
static HRESULT WINAPI DataObjectImpl_DAdvise(IDataObject* iface, FORMATETC *pformatetc, DWORD advf,
IAdviseSink *pAdvSink, DWORD *pdwConnection)
{
DataObjectImpl *This = (DataObjectImpl*)iface;
FIXME("(%p): stub\n", This);
return E_NOTIMPL;
}
static HRESULT WINAPI DataObjectImpl_DUnadvise(IDataObject* iface, DWORD dwConnection)
{
DataObjectImpl *This = (DataObjectImpl*)iface;
FIXME("(%p): stub\n", This);
return E_NOTIMPL;
}
static HRESULT WINAPI DataObjectImpl_EnumDAdvise(IDataObject* iface, IEnumSTATDATA **ppenumAdvise)
{
DataObjectImpl *This = (DataObjectImpl*)iface;
FIXME("(%p): stub\n", This);
return E_NOTIMPL;
}
static const IDataObjectVtbl VT_DataObjectImpl =
{
DataObjectImpl_QueryInterface,
DataObjectImpl_AddRef,
DataObjectImpl_Release,
DataObjectImpl_GetData,
DataObjectImpl_GetDataHere,
DataObjectImpl_QueryGetData,
DataObjectImpl_GetCanonicalFormatEtc,
DataObjectImpl_SetData,
DataObjectImpl_EnumFormatEtc,
DataObjectImpl_DAdvise,
DataObjectImpl_DUnadvise,
DataObjectImpl_EnumDAdvise
};
static HGLOBAL get_unicode_text(ME_TextEditor *editor, const ME_Cursor *start, int nChars)
{
int pars = 0;
WCHAR *data;
HANDLE ret;
ME_DisplayItem *para;
int nEnd = ME_GetCursorOfs(start) + nChars;
/* count paragraphs in range */
para = start->pPara;
while((para = para->member.para.next_para) &&
para->member.para.nCharOfs <= nEnd)
pars++;
ret = GlobalAlloc(GMEM_MOVEABLE, sizeof(WCHAR) * (nChars + pars + 1));
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data = GlobalLock(ret);
ME_GetTextW(editor, data, nChars + pars, start, nChars, TRUE);
GlobalUnlock(ret);
return ret;
}
typedef struct tagME_GlobalDestStruct
{
HGLOBAL hData;
int nLength;
} ME_GlobalDestStruct;
static DWORD CALLBACK ME_AppendToHGLOBAL(DWORD_PTR dwCookie, LPBYTE lpBuff, LONG cb, LONG *pcb)
{
ME_GlobalDestStruct *pData = (ME_GlobalDestStruct *)dwCookie;
int nMaxSize;
BYTE *pDest;
nMaxSize = GlobalSize(pData->hData);
if (pData->nLength+cb+1 >= cb) {
/* round up to 2^17 */
int nNewSize = (((nMaxSize+cb+1)|0x1FFFF)+1) & 0xFFFE0000;
pData->hData = GlobalReAlloc(pData->hData, nNewSize, 0);
}
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pDest = GlobalLock(pData->hData);
memcpy(pDest + pData->nLength, lpBuff, cb);
pData->nLength += cb;
pDest[pData->nLength] = '\0';
GlobalUnlock(pData->hData);
*pcb = cb;
return 0;
}
static HGLOBAL get_rtf_text(ME_TextEditor *editor, const ME_Cursor *start, int nChars)
{
EDITSTREAM es;
ME_GlobalDestStruct gds;
gds.hData = GlobalAlloc(GMEM_MOVEABLE, 0);
gds.nLength = 0;
es.dwCookie = (DWORD_PTR)&gds;
es.pfnCallback = ME_AppendToHGLOBAL;
ME_StreamOutRange(editor, SF_RTF, start, nChars, &es);
GlobalReAlloc(gds.hData, gds.nLength+1, 0);
return gds.hData;
}
HRESULT ME_GetDataObject(ME_TextEditor *editor, const ME_Cursor *start,
int nChars, LPDATAOBJECT *lplpdataobj)
{
DataObjectImpl *obj;
TRACE("(%p,%d,%d)\n", editor, ME_GetCursorOfs(start), nChars);
obj = heap_alloc(sizeof(DataObjectImpl));
if(cfRTF == 0)
cfRTF = RegisterClipboardFormatA("Rich Text Format");
obj->lpVtbl = &VT_DataObjectImpl;
obj->ref = 1;
obj->unicode = get_unicode_text(editor, start, nChars);
obj->rtf = NULL;
obj->fmtetc_cnt = 1;
if(editor->mode & TM_RICHTEXT)
obj->fmtetc_cnt++;
obj->fmtetc = GlobalAlloc(GMEM_ZEROINIT, obj->fmtetc_cnt*sizeof(FORMATETC));
InitFormatEtc(obj->fmtetc[0], CF_UNICODETEXT, TYMED_HGLOBAL);
if(editor->mode & TM_RICHTEXT) {
obj->rtf = get_rtf_text(editor, start, nChars);
InitFormatEtc(obj->fmtetc[1], cfRTF, TYMED_HGLOBAL);
}
*lplpdataobj = (LPDATAOBJECT)obj;
return S_OK;
}