On Jul 26, 2010, at 6:32 PM, Ojan Vafai wrote:
You mention activeElementId, but there must be other side effects that matter.
The only other side effects I can think of are the focus outline (which could probably be tested via getComputedStyle?) and clearing the selection.
Style changes specified using the :focus pseudo-style is another type of side effect.
This sequence doesn’t sound too terrible to me. But I don’t fully understand the proposal. At the time the focusin event fires we won’t yet know what item is getting focus?
I think we do know this and it wouldn't be too hard to implement. It's just a question of what we think the best behavior is. Specifically, in Document::setFocusedNode, we know both the new focused node and the old focused node when firing these events.
The “we” I meant is the JavaScript code on the webpage.