Exemplo n.º 1
0
TEST(iDataObjectTest,Simple)
{
	IDataObject *pDataObject = NULL;
	CreateDataObject(NULL,NULL,&pDataObject,0);

	FORMATETC ftc;
	ftc.cfFormat	= CF_TEXT;
	ftc.dwAspect	= DVASPECT_CONTENT;
	ftc.lindex		= -1;
	ftc.ptd			= NULL;
	ftc.tymed		= TYMED_HGLOBAL;
	EXPECT_EQ(DV_E_FORMATETC,pDataObject->QueryGetData(&ftc));

	EXPECT_EQ(E_NOTIMPL,pDataObject->DAdvise(NULL,ADVF_NODATA,NULL,NULL));
	EXPECT_EQ(OLE_E_ADVISENOTSUPPORTED,pDataObject->DUnadvise(0));
	EXPECT_EQ(OLE_E_ADVISENOTSUPPORTED,pDataObject->EnumDAdvise(NULL));
}
// Other objects querying to see if we support a particular format
STDMETHODIMP nsDataObjCollection::QueryGetData(LPFORMATETC pFE)
{
  UINT format = nsClipboard::GetFormat(MULTI_MIME);

  if (format == pFE->cfFormat) {
    return S_OK;
  }

  for (PRUint32 i = 0; i < mDataObjects.Length(); ++i) {
    IDataObject * dataObj = mDataObjects.ElementAt(i);
    if (S_OK == dataObj->QueryGetData(pFE)) {
      return S_OK;
    }
  }

  return DV_E_FORMATETC;
}
Exemplo n.º 3
0
// @pymethod |PyIDataObject|QueryGetData|Checks if the objects supports returning data in a particular format.
// @rdesc Returns None if the object supports the specified format, otherwise an error is raised.
PyObject *PyIDataObject::QueryGetData(PyObject *self, PyObject *args)
{
	IDataObject *pIDO = GetI(self);
	if ( pIDO == NULL )
		return NULL;
	FORMATETC formatetc;
	PyObject *obpformatetc;
	// @pyparm <o PyFORMATETC>|pformatetc||Tuple representing a FORMATETC struct describing how the data should be returned
	if ( !PyArg_ParseTuple(args, "O:QueryGetData", &obpformatetc) )
		return NULL;
	BOOL bPythonIsHappy = TRUE;
	if (bPythonIsHappy && !PyObject_AsFORMATETC( obpformatetc, &formatetc )) bPythonIsHappy = FALSE;
	if (!bPythonIsHappy) return NULL;
	HRESULT hr;
	PY_INTERFACE_PRECALL;
	hr = pIDO->QueryGetData( &formatetc );
	PY_INTERFACE_POSTCALL;

	if ( FAILED(hr) )
		return PyCom_BuildPyException(hr, pIDO, IID_IDataObject );
	Py_INCREF(Py_None);
	return Py_None;

}
Exemplo n.º 4
0
//-------------------------------------------------------------------------
NS_IMETHODIMP
nsDragService::IsDataFlavorSupported(const char *aDataFlavor, PRBool *_retval)
{
  if (!aDataFlavor || !mDataObject || !_retval)
    return NS_ERROR_FAILURE;

#ifdef NS_DEBUG
  if (strcmp(aDataFlavor, kTextMime) == 0)
    NS_WARNING("DO NOT USE THE text/plain DATA FLAVOR ANY MORE. USE text/unicode INSTEAD");
#endif

  *_retval = PR_FALSE;

  FORMATETC fe;
  UINT format = 0;

  if (IsCollectionObject(mDataObject)) {
    // We know we have one of our special collection objects.
    format = nsClipboard::GetFormat(aDataFlavor);
    SET_FORMATETC(fe, format, 0, DVASPECT_CONTENT, -1,
                  TYMED_HGLOBAL | TYMED_FILE | TYMED_GDI);

    // See if any one of the IDataObjects in the collection supports
    // this data type
    nsDataObjCollection* dataObjCol = GetDataObjCollection(mDataObject);
    if (dataObjCol) {
      PRUint32 cnt = dataObjCol->GetNumDataObjects();
      for (PRUint32 i=0;i<cnt;++i) {
        IDataObject * dataObj = dataObjCol->GetDataObjectAt(i);
        if (S_OK == dataObj->QueryGetData(&fe))
          *_retval = PR_TRUE;             // found it!
      }
    }
  } // if special collection object
  else {
    // Ok, so we have a single object. Check to see if has the correct
    // data type. Since this can come from an outside app, we also
    // need to see if we need to perform text->unicode conversion if
    // the client asked for unicode and it wasn't available.
    format = nsClipboard::GetFormat(aDataFlavor);
    SET_FORMATETC(fe, format, 0, DVASPECT_CONTENT, -1,
                  TYMED_HGLOBAL | TYMED_FILE | TYMED_GDI);
    if (mDataObject->QueryGetData(&fe) == S_OK)
      *_retval = PR_TRUE;                 // found it!
    else {
      // We haven't found the exact flavor the client asked for, but
      // maybe we can still find it from something else that's on the
      // clipboard
      if (strcmp(aDataFlavor, kUnicodeMime) == 0) {
        // client asked for unicode and it wasn't present, check if we
        // have CF_TEXT.  We'll handle the actual data substitution in
        // the data object.
        format = nsClipboard::GetFormat(kTextMime);
        SET_FORMATETC(fe, format, 0, DVASPECT_CONTENT, -1,
                      TYMED_HGLOBAL | TYMED_FILE | TYMED_GDI);
        if (mDataObject->QueryGetData(&fe) == S_OK)
          *_retval = PR_TRUE;                 // found it!
      }
      else if (strcmp(aDataFlavor, kURLMime) == 0) {
        // client asked for a url and it wasn't present, but if we
        // have a file, then we have a URL to give them (the path, or
        // the internal URL if an InternetShortcut).
        format = nsClipboard::GetFormat(kFileMime);
        SET_FORMATETC(fe, format, 0, DVASPECT_CONTENT, -1,
                      TYMED_HGLOBAL | TYMED_FILE | TYMED_GDI);
        if (mDataObject->QueryGetData(&fe) == S_OK)
          *_retval = PR_TRUE;                 // found it!
      }
    } // else try again
  }

  return NS_OK;
}