DragOperation DataTransfer::destinationOperation() const {
DragOperation op = convertEffectAllowedToDragOperation(m_dropEffect);
ASSERT(op == DragOperationCopy || op == DragOperationNone ||
op == DragOperationLink ||
op == (DragOperation)(DragOperationGeneric | DragOperationMove) ||
op == DragOperationEvery);
return op;
}
void DataTransfer::setEffectAllowed(const String& effect) {
if (!isForDragAndDrop())
return;
if (convertEffectAllowedToDragOperation(effect) == DragOperationPrivate) {
// This means that there was no conversion, and the effectAllowed that
// we are passed isn't a valid effectAllowed, so we should ignore it,
// and not set m_effectAllowed.
// The attribute must ignore any attempts to set it to a value other than
// none, copy, copyLink, copyMove, link, linkMove, move, all, and
// uninitialized.
return;
}
if (canWriteData())
m_effectAllowed = effect;
}
DragOperation DataTransfer::sourceOperation() const
{
DragOperation op = convertEffectAllowedToDragOperation(m_effectAllowed);
ASSERT(op != DragOperationPrivate);
return op;
}
