a guide to building accessible websites for joomla
TRANSCRIPT
Twitter: @AstroboySoup
Guide to Building Accessible Websites
http://bit.ly/jbeat-a11ytesting
I’m PeterI’m a Community
Leadership Team Member
I Podcast on Joomla Beat
&
Manage a team of designers & developers
Joomla YogisJoomla World Conference 2014
What is accessibility? #a11y
What is Accessibility?
• Web accessibility refers to the inclusive practice of removing barriers that prevent interaction with, or access to websites, by people with disabilities. When sites are correctly designed, developed and edited, all users have equal access to information and functionality.
Why?
No one is the same
DiversityWe’re a mixed bunch of people from around the world, different languages,
different cultures. No one is the same. We are unique and beautiful.
The Casehttp://www.w3.org/WAI/bcase/socog-case-study
Sydney Olympics 2000
“I am comfortably satisfied that his [the plaintiff] limited access to the web site caused him
considerable feelings of hurt, humiliation and rejection. One cannot overstate the consequential
effect upon him of his having to cope with the persistent need to counter what he saw as a
negative, unhelpful and dismissive attitude on the part of an organization charged with the presentation
of the most notable sporting event in the history of this country.”
It’s the law! WCAG 2.0
High Court of AustraliaFirst Federal Government Joomla Website to meet
WCAG 2.0 A
How Do You Make a Website Accessible?
• Understanding WCAG 2.0 Success Criterion
• Proper coding practises, semantics, aria tags
• Accessible Design Patterns
• Accessibility Testing
WCAG 2.0 Guidelines
• Perceivable
• Operable
• Understandable
• Robust
Perceivable• 1.1 Text alternatives, readable
• 1.2 Text based alternatives for video and audio
• 1.3 Create content that can be presented in different ways (simpler layout) without losing information or structure.
• 1.4 See and hear content including separating foreground from background.
Operable
• 2.1 Keyboard functional
• 2.2 Time to read and use content.
• 2.3 Do not design content in a way that is known to cause seizures.
• 2.4 Help users navigate, find content, and determine where they are.
Understandable
• 3.1 Make text content readable and understandable.
• 3.2 Make Web pages appear and operate in predictable ways.
• 3.3 Help users avoid and correct mistakes.
Robustness
• Make sure it works on any user agent
Misconceptions
I want to change your perspective on accessibility.
Web accessibility is a mindset not a checklist
http://www.accessiq.org/news/commentary/2012/09/web-
accessibility-is-a-mindset-not-a-checklist
It’s not hard to do
We should look at accessibility as a part of the process, not an after thought
Everything we design and build can be
accessible.
It’s a matter of understanding
Do you contribute back to the Joomla Project?
Sign up on this website and bookmark this
page…
Please go here: https://github.com/
joomla/joomla-websites
We’re going to test the new Joomla Showcase
website
This is how you can contribute to Joomla!
What Are We Testing?
• Perceivable
• Operable
• Understandable
• Robust
What Are We Testing Today?
• 1.1 Images and alternative text
• 1.4 Colour Contrast
• 2.1 Keyboard navigation
• 3.3 Labels, error handling
• Semantics, H1, H2, H3 etc
Joomla has WAI-ARIA landmarks
How Are We Testing?
• Screen readers, NVDA
• Page testing scripts
• Manual testing
http://www.nvaccess.org/
http://squizlabs.github.io/HTML_CodeSniffer/
Colour Contrast Analyser for Mac
Report It
• Got to Github and report what you find! https://github.com/joomla/joomla-websites/
Lets make it happen!
How do we know how to code things to make
them accessible?
http://a11yproject.com/patterns/
Resources
• WCAG 2.0 Guidelines
• WCAG 2.0 Quick Reference
• WebAIM Checklist Summary