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