NVDA does not recognise HTML 5 structural elements in IE

[andrew-l-d]

NVDA does not recognise <header>, <nav>, <main> and <footer> in IE but does in Firefox and Chrome. If it could, performance would be very similar to other Windows screen readers and VoiceOver. This would allow developers to use these tags without the need for ARIA equivalents.

Andrew

[jcsteh]

Implementation notes:

1. Create a map of these HTML tag names to ARIA landmark roles. Put it in the aria module. I think there's spec/guidelines somewhere for this, but at the very least, you can just test with Firefox.
2. The actual work should be done in virtualBuffers.MSHTML.MSHTMLTextInfo._normalizeControlField. There's already code there that deals with landmarks. If there aren't ARIA landmarks, use the map from 1) to derive one.

[jcsteh]

Reference: HTML Accessibility API Mappings 1.0

[feerrenrut]

What I believe each of the missing elements should do, based on what Firefox or Chrome do, and cross referenced with w3.org ARIA information:

 <main> = "main landmark"
 <header> = "banner landmark"
 <nav> =  "navigation landmark"
 <footer> = "content info landmark"

A gist example file for testing

Pressing the d key to navigate through landmarks should also be handled.

[feerrenrut]

Incubated in 24458af