> The proposal (lifted from WPF) is to provide a mechanism which would allow a > Control to replace an event’s original target with itself. This is a low-cost > way of making the control appear to be a black box at the event level. It > would certainly have a lower cost than, say, trying to hide skin nodes from > the rest of the scene graph. I’m not aware of any toolkit that even attempts > that.
Shadow DOM is an example of sub-node isolation. It also has focus delegation.
