- From: Detlev Fischer <detlev.fischer@testkreis.de>
- Date: Thu, 25 Feb 2016 18:41:30 +0100 (CET)
- To: public-mobile-a11y-tf@w3.org
Just following the discussion on today's telco about the benefits and disadvantages of having a new Success Criterion 2.5.3 vs. rolling it into WCAG 3.2.1, I see some differences which might be sufficient to justify the sdeparation (but I am not sure ansd just want to discuss this in more detail): (1) SC 3.2.1 covers operation with or without AT turned on SC 2.5.3 presumably focuses on use with touch AT turned on (a completely different input paradigm compared to touch without AT) (2) 3.2.1: When tabbing through content, things violating 3.2.1 just happen on focus - there is no option to revoke the action SC 2.5.3 (as I understood it) focuses on enabling users to revoke an action if they discover that they made a mistake (3) So there are two variants in the way 2.5.3 can apply: A. AT is off. Here it would cover being able to move the finger out of a control to revoke the action. We know from Patrick that this might not work (sticky behaviour), but it _can_ work natively (iOS) and also on web pages (iOS, Safari) - maybe only if you move the finger far enough outside the control. B. AT is on. Here, the typical moment to revoke might be that you realise in the middle of a double tap that you actually don't want to activate after all, so you don't lift your finger in order to prevent the event from being fired. We would need to validate with AT users whether they actually do that. iOS cancels the double tap when you move your finger sideways (which of course can be anywhere). If you just leave it resting on screen you get a context menu that includes 'Cancel' (but this may be 3D touch specific) Not sure whether this is helpful. Detlev -- Detlev Fischer testkreis c/o feld.wald.wiese Thedestr. 2, 22767 Hamburg Mobil +49 (0)157 57 57 57 45 Fax +49 (0)40 439 10 68-5 http://www.testkreis.de Beratung, Tests und Schulungen für barrierefreie Websites
Received on Thursday, 25 February 2016 17:41:56 UTC