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RE: About image sliders

From: Gunderson, Jon R <jongund@illinois.edu>
Date: Mon, 30 Nov 2015 15:54:39 +0000
To: Kevin White <kevin@w3.org>, "ajaysharma89003@gmail.com" <ajaysharma89003@gmail.com>
CC: "Beranek, Nicholas" <Nicholas.Beranek@capitalone.com>, "Sean Murphy (seanmmur)" <seanmmur@cisco.com>, "Elizabeth J. Pyatt" <ejp10@psu.edu>, "w3c-wai-ig@w3.org" <w3c-wai-ig@w3.org>
Message-ID: <46739F12637CC94E82F75FF874E4A1473B8264B9@CITESMBX1.ad.uillinois.edu>
Here is an accessible image slider we have been working on at the University of Illinois based on the PayPal Bootstrap Accessibility Plug-in:
http://jongund.github.io/aria-examples/bootstrap-carousel/carousel-3.html


Most of the features have been checked back into the PayPal Bootstrap Accessibility Plug-in:
https://github.com/paypal/bootstrap-accessibility-plugin


Jon


From: Kevin White [mailto:kevin@w3.org]
Sent: Monday, November 30, 2015 9:33 AM
To: ajaysharma89003@gmail.com
Cc: Beranek, Nicholas <Nicholas.Beranek@capitalone.com>; Sean Murphy (seanmmur) <seanmmur@cisco.com>; Elizabeth J. Pyatt <ejp10@psu.edu>; w3c-wai-ig@w3.org
Subject: Re: About image sliders

Hi Ajay,

You might find the (currently draft) carousel tutorial helpful:

            http://www.w3.org/WAI/tutorials/carousels/<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.w3.org_WAI_tutorials_carousels_&d=BQMFaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=bZujjczVTYPMSQ4uugSQLQ&m=HNlHBSDvWLmE236PJShq4S2vZBwsb9ya-gbjcuV2rHk&s=NrBrHZMCfKOEIHBIzzb-QDiNl6X89Tbl2x5phEh6n3A&e=>

Any feedback or improvements on this resource is welcome.

Best,

Kevin

——
Kevin White
W3C Web Accessibility Initiative (WAI)
e-mail: kevin@w3.org<mailto:kevin@w3.org>
about: http://www.w3.org/People/#kevin<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.w3.org_People_-23kevin&d=BQMFaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=bZujjczVTYPMSQ4uugSQLQ&m=HNlHBSDvWLmE236PJShq4S2vZBwsb9ya-gbjcuV2rHk&s=mms2NjExuTKwo_8MtxP9P0XizXYfh2WBJk0eHrNNIwc&e=>

On 30 Nov 2015, at 14:50, Elizabeth J. Pyatt <ejp10@psu.edu<mailto:ejp10@psu.edu>> wrote:

I would also add that slideshows that constantly rotate are a problem for people with some reading & cognitive processing disorders as well as those with motion disorders who have problems moving quickly. See WCAG 2 Guideline 2.2 for details (http://www.w3.org/TR/WCAG20/#time-limits<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.w3.org_TR_WCAG20_-23time-2Dlimits&d=BQMFaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=bZujjczVTYPMSQ4uugSQLQ&m=HNlHBSDvWLmE236PJShq4S2vZBwsb9ya-gbjcuV2rHk&s=HoYndjchGWGB2TpHtw1H48NqSYP0pHO8E2dkP-8TI3k&e=>)

For keyboard accessibility, it’s also important that keyboard events are available for sighted users (and that directions are visible).

For these reasons, I generally recommend that slideshows either are static until clicked on (i.e. like many “Top 10” style slideshows) or only rotate once through the cycle.

Elizabeth


On Nov 30, 2015, at 9:26 AM, Beranek, Nicholas <Nicholas.Beranek@capitalone.com<mailto:Nicholas.Beranek@capitalone.com>> wrote:

Hi Ajay,

Yes, please provide some more details.

I will add that you can follow the WAI-ARIA authoring practices for the Slider widget here: http://www.w3.org/WAI/PF/aria-practices/#slider<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.w3.org_WAI_PF_aria-2Dpractices_-23slider&d=BQMFaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=bZujjczVTYPMSQ4uugSQLQ&m=HNlHBSDvWLmE236PJShq4S2vZBwsb9ya-gbjcuV2rHk&s=E57kTDgidSiI1hWAVHbWrsMlnWMqMNzVDZtM-LDni4Q&e=>. It provides the necessary ARIA roles, states, and properties to add as well as the keyboard event listeners and their expected behaviors.

Nick

-----Original Message-----
From: Sean Murphy (seanmmur) [mailto:seanmmur@cisco.com]
Sent: Monday, November 30, 2015 3:03 AM
To: ajaysharma89003@gmail.com<mailto:ajaysharma89003@gmail.com>
Cc: w3c-wai-ig@w3.org<mailto:w3c-wai-ig@w3.org>
Subject: Re: About image sliders

Hi

It depends how you have coded the slider.

Are you using a third party API or your own code. Can you provide some code example?


Sent from my iPhone


On 30 Nov 2015, at 6:49 PM, "ajaysharma89003@gmail.com<mailto:ajaysharma89003@gmail.com>" <ajaysharma89003@gmail.com<mailto:ajaysharma89003@gmail.com>> wrote:

Hi,

I have just plunjed into the world of accessibility so please forgive if I sound novice.

Now problem is that, I am working on a project which is a website that shows a big image slider. The images convey important information both in textual and non textual form, and this slider is inaccessible.

My question is that is there any standard technique to make it accessible and if is it okay to make it accessible by hiding the entire slider div by aria-hidden and rendering the info in simple text, that is hidden from sighted users through css, without changing the layout of the site?

Kindly let me know the best thing to do to get it aligned with Level AA.

Many Thanks,
Ajay




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Received on Monday, 30 November 2015 15:55:19 UTC

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