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Bug 396592 - "Drag and drop images from the content area fail" [p=jimm r=emaijala sr=roc a=blocking1.9+ for M9]

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This commit is contained in:
reed@reedloden.com 2007-10-18 21:30:03 -07:00
parent 1203d8e114
commit 439ff0b772
1 changed files with 67 additions and 1 deletions
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68
widget/src/windows/nsDataObj.cpp
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@ -209,6 +209,16 @@ STDMETHODIMP nsDataObj::CStream::Seek(LARGE_INTEGER nMove,
DWORD dwOrigin,
ULARGE_INTEGER* nNewPos)
{
if (nNewPos == NULL)
return STG_E_INVALIDPOINTER;
if (nMove.LowPart == 0 && nMove.HighPart == 0 &&
(dwOrigin == STREAM_SEEK_SET || dwOrigin == STREAM_SEEK_CUR)) {
nNewPos->LowPart = 0;
nNewPos->HighPart = 0;
return S_OK;
}
return E_NOTIMPL;
}
@ -221,7 +231,63 @@ STDMETHODIMP nsDataObj::CStream::SetSize(ULARGE_INTEGER nNewSize)
//-----------------------------------------------------------------------------
STDMETHODIMP nsDataObj::CStream::Stat(STATSTG* statstg, DWORD dwFlags)
{
return E_NOTIMPL;
if (statstg == NULL)
return STG_E_INVALIDPOINTER;
if (!mChannel)
return E_FAIL;
memset((void*)statstg, 0, sizeof(STATSTG));
if (dwFlags != STATFLAG_NONAME)
{
nsCOMPtr<nsIURI> sourceURI;
if (NS_FAILED(mChannel->GetURI(getter_AddRefs(sourceURI)))) {
return E_FAIL;
}
nsCAutoString strFileName;
nsCOMPtr<nsIURL> sourceURL = do_QueryInterface(sourceURI);
sourceURL->GetFileName(strFileName);
if (strFileName.IsEmpty())
return E_FAIL;
NS_UnescapeURL(strFileName);
NS_ConvertUTF8toUTF16 wideFileName(strFileName);
PRUint32 nMaxNameLength = (wideFileName.Length()*2) + 2;
void * retBuf = CoTaskMemAlloc(nMaxNameLength); // freed by caller
if (!retBuf)
return STG_E_INSUFFICIENTMEMORY;
ZeroMemory(retBuf, nMaxNameLength);
memcpy(retBuf, wideFileName.get(), wideFileName.Length()*2);
statstg->pwcsName = (LPOLESTR)retBuf;
}
SYSTEMTIME st;
FILETIME ft;
statstg->type = STGTY_STREAM;
GetSystemTime(&st);
SystemTimeToFileTime((const SYSTEMTIME*)&st, (LPFILETIME)&statstg->mtime);
statstg->ctime = statstg->atime = statstg->mtime;
PRInt32 nLength = 0;
if (mChannel)
mChannel->GetContentLength(&nLength);
if (nLength < 0)
nLength = 0;
statstg->cbSize.LowPart = (DWORD)nLength;
statstg->grfMode = STGM_READ;
statstg->grfLocksSupported = LOCK_ONLYONCE;
statstg->clsid = CLSID_NULL;
return S_OK;
}
//-----------------------------------------------------------------------------