Re: hit regions

On Tue, Aug 21, 2012 at 3:52 PM, Charles Pritchard <> wrote:
> On 8/19/2012 9:55 PM, Rik Cabanier wrote:
>>> A key design goal, as I understand it, was to avoid turning canvas into
>>> a retained mode API. The author is responsible for managing any object
>>> graph;
>>> canvas is just a display.
>> Isn't the new "current default path" a step towards retained graphics?
> We went through this discussion at length on public-canvas-api.
> At the point that authors take responsibility for managing the DOM, they've
> departed from the strict sense of a bitmap API and are now in the world of
> ARIA+DOM is a retained mode API.

Yes, effectively authors must manage two representations of their
abstract interface:

   - canvas bitmaps
   - DOM

The WHATWG hit region feature provides the weakest possible binding
between the two.

Benjamin Hawkes-Lewis

Received on Tuesday, 21 August 2012 14:57:58 UTC