Under The Hood: Facebook Accessibility
Feb 3, 2014Ramya Sethuraman
Summary
This post details the development of PhotoAltTextFetcher, a programmatic utility to generate alt text for user-uploaded photos and videos based on metadata like owner, tagged people, location, and message content. It also describes enhancements for Facebook.com in high contrast mode, including a JavaScript-based detection mechanism and server-side logic to render images inline or as text alternatives, and the introduction of keyboard shortcuts for News Feed.
More from the Facebook Accessibility Features trail
- Making Facebook.com accessible to as many people as possible
- Rosetta: Understanding text in images and videos with machine learning
- ARIA Grid: Supporting nonvisual layout and keyboard traversal
- Android accessibility debugging with Stetho
- Under the hood: Building accessibility tools for the visually impaired on Facebook