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Re: qr code and guidelines

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From: Patrick H. Lauke
Date: Sep 12, 2020 8:55AM

On 12/09/2020 15:22, Joe Humbert (A11y) wrote:
> I disagree that 2.4.5 could not apply.
>
> The SC says " Functionality that can be operated by device motion or user
> motion can also be operated"
>
> The Understanding says " The intent of this success criterion is to ensure
> that functions triggered by moving a device (for example, shaking or
> tilting) or by gesturing towards the device (so that sensors like a camera
> can pick up and interpret the gesturing), can also be operated by more
> conventional user interface components. "
>
> I would think moving a camera into position to have the QR code may fall
> under that intent. Generally, when you move a device into the correct
> position and it detects a QR code something happens.

That's where we'll disagree then. And in the example with the camera,
it's the actual gesturing that is key (just expressed quite awkwardly
and confusingly). Read through the rest of the understanding doc (and
see the various techniques/references, concerned with things like
functionality triggered by polling the gyroscope sensors etc) and it's
hopefully clearer what the idea here is.
https://www.w3.org/WAI/WCAG21/Understanding/motion-actuation.html

P
--
Patrick H. Lauke

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