react-dnd set state or props within hover function

Question

I'm trying to update props within the hover function in my DropTarget but it seems this isn't possible? The action to redraw happens in componentDidUpdate, and I basically want to set some props/state within the value i read inside hover (if pointer is too far to the right, then set a prop which will trigger componentDidUpdate to execute - and hover is the only place i can listen for those changes afaik). Is this possible, or is there otherwise another recommended approach?