LRESULT CElementPropPage::OnClickedAddbutton(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
{
ATLTRACE(_T("OnClickedAddbutton\n"));
HRESULT hr;
CComPtr<IDMGraphCtrl> spGraph;
if(FAILED(GetGraphCtrl(&spGraph)))
{
return 0;
}
CComPtr<IDMGraphCollection> spGraphCollection;
hr = spGraph->get_Elements(&spGraphCollection);
if(FAILED(hr))
{
return hr;
}
AppendNewItem(spGraphCollection);
UpdateControls(spGraph);
return 0;
}
already_AddRefed<DataTransferItem> DataTransferItemList::SetDataWithPrincipal(
const nsAString& aType, nsIVariant* aData, uint32_t aIndex,
nsIPrincipal* aPrincipal, bool aInsertOnly, bool aHidden,
ErrorResult& aRv) {
if (aIndex < mIndexedItems.Length()) {
nsTArray<RefPtr<DataTransferItem>>& items = mIndexedItems[aIndex];
uint32_t count = items.Length();
for (uint32_t i = 0; i < count; i++) {
RefPtr<DataTransferItem> item = items[i];
nsString type;
item->GetInternalType(type);
if (type.Equals(aType)) {
if (NS_WARN_IF(aInsertOnly)) {
aRv.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
return nullptr;
}
// don't allow replacing data that has a stronger principal
bool subsumes;
if (NS_WARN_IF(item->Principal() && aPrincipal &&
(NS_FAILED(aPrincipal->Subsumes(item->Principal(),
&subsumes)) ||
!subsumes))) {
aRv.Throw(NS_ERROR_DOM_SECURITY_ERR);
return nullptr;
}
item->SetPrincipal(aPrincipal);
DataTransferItem::eKind oldKind = item->Kind();
item->SetData(aData);
mDataTransfer->TypesListMayHaveChanged();
if (aIndex != 0) {
// If the item changes from being a file to not a file or vice-versa,
// its presence in the mItems array may need to change.
if (item->Kind() == DataTransferItem::KIND_FILE &&
oldKind != DataTransferItem::KIND_FILE) {
// not file => file
mItems.AppendElement(item);
} else if (item->Kind() != DataTransferItem::KIND_FILE &&
oldKind == DataTransferItem::KIND_FILE) {
// file => not file
mItems.RemoveElement(item);
}
}
// Regenerate the Files array if we have modified a file's status
if (item->Kind() == DataTransferItem::KIND_FILE ||
oldKind == DataTransferItem::KIND_FILE) {
RegenerateFiles();
}
return item.forget();
}
}
} else {
// Make sure that we aren't adding past the end of the mIndexedItems array.
// XXX Should this be a MOZ_ASSERT instead?
aIndex = mIndexedItems.Length();
}
// Add the new item
RefPtr<DataTransferItem> item =
AppendNewItem(aIndex, aType, aData, aPrincipal, aHidden);
if (item->Kind() == DataTransferItem::KIND_FILE) {
RegenerateFiles();
}
return item.forget();
}
