1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381
|
/*
* Copyright (C) 2007 Apple Inc. All rights reserved.
* Copyright (C) 2012 Baidu Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "DRTDataObject.h"
FORMATETC* cfHDropFormat()
{
static FORMATETC urlFormat = {CF_HDROP, 0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL};
return &urlFormat;
}
FORMATETC* cfFileNameWFormat()
{
static UINT cf = RegisterClipboardFormat(L"FileNameW");
static FORMATETC urlFormat = {cf, 0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL};
return &urlFormat;
}
FORMATETC* cfUrlWFormat()
{
static UINT cf = RegisterClipboardFormat(L"UniformResourceLocatorW");
static FORMATETC urlFormat = {cf, 0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL};
return &urlFormat;
}
class WCEnumFormatEtc : public IEnumFORMATETC {
public:
explicit WCEnumFormatEtc(const Vector<FORMATETC>& formats);
explicit WCEnumFormatEtc(const Vector<FORMATETC*>& formats);
// IUnknown members
STDMETHOD(QueryInterface)(REFIID, void**);
STDMETHOD_(ULONG, AddRef)();
STDMETHOD_(ULONG, Release)();
// IEnumFORMATETC members
STDMETHOD(Next)(ULONG, LPFORMATETC, ULONG*);
STDMETHOD(Skip)(ULONG);
STDMETHOD(Reset)();
STDMETHOD(Clone)(IEnumFORMATETC**);
private:
long m_ref;
Vector<FORMATETC> m_formats;
size_t m_current;
};
WCEnumFormatEtc::WCEnumFormatEtc(const Vector<FORMATETC>& formats)
: m_ref(1)
, m_current(0)
, m_formats(formats)
{
}
WCEnumFormatEtc::WCEnumFormatEtc(const Vector<FORMATETC*>& formats)
: m_ref(1)
, m_current(0)
{
for (size_t i = 0; i < formats.size(); ++i)
m_formats.append(*formats[i]);
}
STDMETHODIMP WCEnumFormatEtc::QueryInterface(REFIID riid, void** ppvObject)
{
*ppvObject = 0;
if (IsEqualIID(riid, IID_IUnknown) || IsEqualIID(riid, IID_IEnumFORMATETC)) {
*ppvObject = this;
AddRef();
return S_OK;
}
return E_NOINTERFACE;
}
STDMETHODIMP_(ULONG) WCEnumFormatEtc::AddRef()
{
return InterlockedIncrement(&m_ref);
}
STDMETHODIMP_(ULONG) WCEnumFormatEtc::Release()
{
long refCount = InterlockedDecrement(&m_ref);
if (!refCount)
delete this;
return refCount;
}
STDMETHODIMP WCEnumFormatEtc::Next(ULONG celt, LPFORMATETC lpFormatEtc, ULONG* pceltFetched)
{
if (pceltFetched)
*pceltFetched = 0;
ULONG cReturn = celt;
if (celt <= 0 || !lpFormatEtc || m_current >= m_formats.size())
return S_FALSE;
if (!pceltFetched && celt != 1) // pceltFetched can be 0 only for 1 item request
return S_FALSE;
while (m_current < m_formats.size() && cReturn > 0) {
*lpFormatEtc++ = m_formats[m_current++];
--cReturn;
}
if (pceltFetched)
*pceltFetched = celt - cReturn;
return !cReturn ? S_OK : S_FALSE;
}
STDMETHODIMP WCEnumFormatEtc::Skip(ULONG celt)
{
if ((m_current + celt) >= m_formats.size())
return S_FALSE;
m_current += celt;
return S_OK;
}
STDMETHODIMP WCEnumFormatEtc::Reset()
{
m_current = 0;
return S_OK;
}
STDMETHODIMP WCEnumFormatEtc::Clone(IEnumFORMATETC** ppCloneEnumFormatEtc)
{
if (!ppCloneEnumFormatEtc)
return E_POINTER;
WCEnumFormatEtc* newEnum = new WCEnumFormatEtc(m_formats);
if (!newEnum)
return E_OUTOFMEMORY;
newEnum->AddRef();
newEnum->m_current = m_current;
*ppCloneEnumFormatEtc = newEnum;
return S_OK;
}
//////////////////////////////////////////////////////////////////////////
HRESULT DRTDataObject::createInstance(DRTDataObject** result)
{
if (!result)
return E_POINTER;
*result = new DRTDataObject();
return S_OK;
}
DRTDataObject::DRTDataObject()
: m_ref(1)
{
}
DRTDataObject::~DRTDataObject()
{
for (size_t i = 0; i < m_medium.size(); ++i) {
ReleaseStgMedium(m_medium[i]);
delete m_medium[i];
}
WTF::deleteAllValues(m_formats);
}
STDMETHODIMP DRTDataObject::QueryInterface(REFIID riid, void** ppvObject)
{
*ppvObject = 0;
if (IsEqualIID(riid, IID_IUnknown) || IsEqualIID(riid, IID_IDataObject))
*ppvObject = this;
if (*ppvObject) {
AddRef();
return S_OK;
}
return E_NOINTERFACE;
}
STDMETHODIMP_(ULONG) DRTDataObject::AddRef()
{
return InterlockedIncrement(&m_ref);
}
STDMETHODIMP_(ULONG) DRTDataObject::Release()
{
long refCount = InterlockedDecrement(&m_ref);
if (!refCount)
delete this;
return refCount;
}
STDMETHODIMP DRTDataObject::GetData(FORMATETC* pformatetcIn, STGMEDIUM* pmedium)
{
if (!pformatetcIn || !pmedium)
return E_POINTER;
pmedium->hGlobal = 0;
for (size_t i = 0; i < m_formats.size(); ++i) {
if (pformatetcIn->lindex == m_formats[i]->lindex && pformatetcIn->dwAspect == m_formats[i]->dwAspect && pformatetcIn->cfFormat == m_formats[i]->cfFormat) {
CopyMedium(pmedium, m_medium[i], m_formats[i]);
return S_OK;
}
}
return DV_E_FORMATETC;
}
STDMETHODIMP DRTDataObject::GetDataHere(FORMATETC*, STGMEDIUM*)
{
return E_NOTIMPL;
}
STDMETHODIMP DRTDataObject::QueryGetData(FORMATETC* pformatetc)
{
if (!pformatetc)
return E_POINTER;
if (!(DVASPECT_CONTENT & pformatetc->dwAspect))
return (DV_E_DVASPECT);
for (size_t i = 0; i < m_formats.size(); ++i) {
if (pformatetc->tymed & m_formats[i]->tymed) {
if (pformatetc->cfFormat == m_formats[i]->cfFormat)
return S_OK;
}
}
return DV_E_TYMED;
}
STDMETHODIMP DRTDataObject::GetCanonicalFormatEtc(FORMATETC*, FORMATETC*)
{
return DATA_S_SAMEFORMATETC;
}
STDMETHODIMP DRTDataObject::SetData(FORMATETC* pformatetc, STGMEDIUM* pmedium, BOOL fRelease)
{
if (!pformatetc || !pmedium)
return E_POINTER;
FORMATETC* formatetc = new FORMATETC;
if (!formatetc)
return E_OUTOFMEMORY;
STGMEDIUM* pStgMed = new STGMEDIUM;
if (!pStgMed) {
delete formatetc;
return E_OUTOFMEMORY;
}
ZeroMemory(formatetc, sizeof(FORMATETC));
ZeroMemory(pStgMed, sizeof(STGMEDIUM));
*formatetc = *pformatetc;
m_formats.append(formatetc);
if (fRelease)
*pStgMed = *pmedium;
else
CopyMedium(pStgMed, pmedium, pformatetc);
m_medium.append(pStgMed);
return S_OK;
}
void DRTDataObject::CopyMedium(STGMEDIUM* pMedDest, STGMEDIUM* pMedSrc, FORMATETC* pFmtSrc)
{
switch (pMedSrc->tymed) {
#if !OS(WINCE)
case TYMED_HGLOBAL:
pMedDest->hGlobal = static_cast<HGLOBAL>(OleDuplicateData(pMedSrc->hGlobal, pFmtSrc->cfFormat, 0));
break;
case TYMED_GDI:
pMedDest->hBitmap = static_cast<HBITMAP>(OleDuplicateData(pMedSrc->hBitmap, pFmtSrc->cfFormat, 0));
break;
case TYMED_MFPICT:
pMedDest->hMetaFilePict = static_cast<HMETAFILEPICT>(OleDuplicateData(pMedSrc->hMetaFilePict, pFmtSrc->cfFormat, 0));
break;
case TYMED_ENHMF:
pMedDest->hEnhMetaFile = static_cast<HENHMETAFILE>(OleDuplicateData(pMedSrc->hEnhMetaFile, pFmtSrc->cfFormat, 0));
break;
case TYMED_FILE:
pMedSrc->lpszFileName = static_cast<LPOLESTR>(OleDuplicateData(pMedSrc->lpszFileName, pFmtSrc->cfFormat, 0));
break;
#endif
case TYMED_ISTREAM:
pMedDest->pstm = pMedSrc->pstm;
pMedSrc->pstm->AddRef();
break;
case TYMED_ISTORAGE:
pMedDest->pstg = pMedSrc->pstg;
pMedSrc->pstg->AddRef();
break;
default:
break;
}
pMedDest->tymed = pMedSrc->tymed;
pMedDest->pUnkForRelease = 0;
if (pMedSrc->pUnkForRelease) {
pMedDest->pUnkForRelease = pMedSrc->pUnkForRelease;
pMedSrc->pUnkForRelease->AddRef();
}
}
STDMETHODIMP DRTDataObject::EnumFormatEtc(DWORD dwDirection, IEnumFORMATETC** ppenumFormatEtc)
{
if (!ppenumFormatEtc)
return E_POINTER;
*ppenumFormatEtc = 0;
switch (dwDirection) {
case DATADIR_GET:
*ppenumFormatEtc = new WCEnumFormatEtc(m_formats);
if (!(*ppenumFormatEtc))
return E_OUTOFMEMORY;
break;
case DATADIR_SET:
default:
return E_NOTIMPL;
break;
}
return S_OK;
}
STDMETHODIMP DRTDataObject::DAdvise(FORMATETC*, DWORD, IAdviseSink*, DWORD*)
{
return OLE_E_ADVISENOTSUPPORTED;
}
STDMETHODIMP DRTDataObject::DUnadvise(DWORD)
{
return E_NOTIMPL;
}
HRESULT STDMETHODCALLTYPE DRTDataObject::EnumDAdvise(IEnumSTATDATA**)
{
return OLE_E_ADVISENOTSUPPORTED;
}
void DRTDataObject::clearData(CLIPFORMAT format)
{
size_t position = 0;
while (position < m_formats.size()) {
if (m_formats[position]->cfFormat == format) {
FORMATETC* current = m_formats[position];
m_formats[position] = m_formats[m_formats.size() - 1];
m_formats[m_formats.size() - 1] = 0;
m_formats.removeLast();
delete current;
STGMEDIUM* medium = m_medium[position];
m_medium[position] = m_medium[m_medium.size() - 1];
m_medium[m_medium.size() - 1] = 0;
m_medium.removeLast();
ReleaseStgMedium(medium);
delete medium;
continue;
}
position++;
}
}
|