Re: You Got Your SVG in my Canvas! Mmm, Delicious! (was: hit testing and retained graphics)

On Thu, Jun 30, 2011 at 6:53 PM, Tab Atkins Jr. <> wrote:
> Again, define your problems.  Making your average game, such as the
> ones produced by Zynga, accessible to the blind, for example, can
> *not* be accomplished by exposing an alternate subtree.  It can
> theoretically be done, but only be exposing completely different
> interaction modes, which are most likely fairly tightly coupled with
> the design of the game itself.  Different disabled subgroups require
> different interaction modes.

Can you elaborate?

Do you mean that making the average game cannot be made accessible by
exposing an alternate subtree *alone* or what?

Just exposing a tree doesn't mean you can forget about keyboard
accessibility or providing audio or whatever, but it seems to me than
a subtree goes a long way towards making many aspects of these games

Take Zynga's latest game Empires & Allies, which is a sort of
Settlers-style strategy. The buttons could be represented using
<button> elements. The maps could be represented using SVG plus ARIA
drag-and-drop semantics. The messages could use ARIA live regions,
etc, etc.

On the general subject of canvas and game accessibility, see also my
previous discussion at:

Benjamin Hawkes-Lewis

Received on Thursday, 30 June 2011 18:13:17 UTC