I looked through all of that information, and I did not see any indication in there that specifically states that it was equal to the grid without doing some math. I was expecting to find something like "snap" or "grid", but all it gives me is numbers. I assumed I could do
if (ui.originalElement.width() - ui.element.width % snap_width) {
}
But the two "widths" are always the same. I used a start to set the original width to a variable, and use that, but the "sizes" are always reported at what they appear, so every instance results in a difference of snap_width (which for my purposes is equal to 20).
I just cannot believe there is nothing in either event or ui that says "hey, the visible element changed". Seems like an important bit of information, but maybe I am just doing something out of the ordinary.