H5C3 meetup - Accessibility & WebGL

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Presentation on HTML5's accessibility support, what developers can do to enhance experience for people with disabilities, which problems ARIA solves and what kind of goodies are brought by WebGL.

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H5C3 meetup - Accessibility & WebGL

  1. 1. Accessibility & WebGL Urban Škudnik urban.skudnik@gmail.com, @urbanskudnik
  2. 2. Before you get all hyped...
  3. 3. http://tvtropes.org/pmwiki/pmwiki.php/Main/ThinkOfTheChildren
  4. 4. Everything is only your good will.
  5. 5. Accessibility
  6. 6. The State of H5
  7. 7. The good
  8. 8. The bad • FF4 (b6) - 6 elements, partial support for 4 • Opera 10.62 - 7 elements partially supported • IE 9 - 3 partially supported • Chrome - null. www.html5accessibility.com
  9. 9. WAI - ARIA
  10. 10. How does that look? <span tabindex="0" role="checkbox" aria-checked="true" onkeydown="return checkBoxEvent (event);" onclick="return checkBoxEvent(event);"> Label </span>
  11. 11. The best thing? • Dojo - mature • YUI • GWT - partial • jQuery UI - fully compliant by 2.0
  12. 12. Landmarks • role = • navigation • complementary • main • form
  13. 13. The bad sadly-must- accept • FF 4 & IE9 - 31 fully, 2 partially, one unsupported • Chrome - 2 partially http://www.html5accessibility.com/index-aria.html
  14. 14. Live updates
  15. 15. Benefits http://www.flickr.com/photos/prairiefireimaging/4212859050/
  16. 16. WebGL
  17. 17. There’s always Flash...
  18. 18. ...but surely we can do better!
  19. 19. What we have... • Bitmap (Canvas) • Vector (SVG) • OpenGL (Canvas)
  20. 20. Right tool for the right job • DOM • Shapes • Event handling - easy • Single HTML element, rendering • Pixels • Event handling - hard • Have to rely on internal buffer SVG Canvas
  21. 21. WebGL • Not very weby - OpenGL ES • Low level API • Hard without libraries • No installation • Rapid prototyping
  22. 22. Just how hard?
  23. 23. We are dealing with OpenGL, after all!
  24. 24. But we adopted libraries for JS too!
  25. 25. Warchest • X3DOM • GLGE
  26. 26. GLGE • Blender-to-WebGL
  27. 27. X3DOM <x3d width="500px" height="400px"> <scene> <shape> <appearance> <material diffuseColor='red'></material> </appearance> <box></box> </shape> </scene> </x3d>

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