RE: Rough draft of some success criteria for a extension guideline "Touch accessible"

Ø  2.5.1 Touch: All functionality of the content is operable through touch gestures with and without system assistive technology activated. (Level A)
Would that include hardware buttons?  For example, would touching the hardware back button count here?  We’d also need some sort of clause to say when touch is supported by the platform.  Some mobile platforms may not support touch and may only have physical buttons.  What if something was keyboard accessible and speech accessible?  That is what if some actions just can’t be done with touch using a screen reader but they provide keyboard access and other method such as speech or hardware button presses?

I like your proposed changed much better than the prior suggestion!

Jonathan

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From: David MacDonald [mailto:david100@sympatico.ca]
Sent: Thursday, August 13, 2015 2:07 PM
To: Detlev Fischer
Cc: public-mobile-a11y-tf@w3.org
Subject: Re: Rough draft of some success criteria for a extension guideline "Touch accessible"

>2.5.1 Touch: All functionality of the content is operable through touch gestures. (Level A)

Suggested friendly amendment:

2.5.1 Touch: All functionality of the content is operable through touch gestures with and without system assistive technology activated. (Level A)
I think this will address my concern that often touch gestures don't work when VoiceOver is activated.



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On Fri, Jul 24, 2015 at 5:49 AM, Detlev Fischer <detlev.fischer@testkreis.de<mailto:detlev.fischer@testkreis.de>> wrote:
Hi folks,
This is my first shot at possible success criteria for a new WCAG extension guideline "Touch Accessible" under Principe 2 Operable. The one SC I was actually asked to draft is what I provisionally called "2.5.3 Single Taps and Long Presses Revocable". I found it easier to also sketch some other obvious SCs to see where this one might fit.


Guideline 2.5 Touch Accessible: Make all functionality available via touch.

2.5.1 Touch: All functionality of the content is operable through touch gestures. (Level A)

2.5.2 Single Taps and Long Presses Revocable: Interface elements that require a single tap or a long press as input will only trigger the corresponding event when the finger is lifted inside that element. (Level A)

2.5.3 Modified Touch: When touch input behavior is modified by built-in assistive technology, all functionality of the content is still operable through touch gestures. (Level A)

2.5.4 No Swipe Trap: When touch input behavior is modified by built-in assistive technology so that touch focus can be moved to a component of the page using swipe gestures, then focus can be moved away from that component using swipe gestures or the user is advised of the method for moving focus away. (Level A)

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2.5.5 Touch Target Size: One dimension of any touch target measures at least 9 mm except when the user has reduced the default scale of content. (Level AA)

2.5.6 Touch Target Clearance: The center of each touch target has a distance of at least 9 mm from the center of any other touch target, except when the user has reduced the default scale of content. (Level AA)


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