On Mon, Oct 14, 2013 at 1:31 PM, Timothy Hatcher <timo...@apple.com> wrote:
> On Oct 14, 2013, at 12:43 PM, Rik Cabanier <caban...@gmail.com> wrote: > > Also, how would your suggestion tell the UA about what areas are > associated with the elements? What happens if an element is no longer > focused? The ring is drawn into the canvas bitmap so those pixels have to > be regenerated. > > > Focus rings are usually larger than the control they surround. How is the > developer suppose to know the pixel padding needed for each platform's > focus ring? Guess and hope for the best? > Why would he need to know this? Is it for the path that describes the ring? > Would drawing the system focus ring taint the canvas pixels? (Drawing form > controls into canvas via SVG images and <foreignObject> has been considered > taint worthy because it could leak the user's UI theme.) > I'm unsure if it should taint the canvas. How much information would be leaked that isn't already available through other means?
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