Keyboard and Screen Reader support for Vertical Tree component

[debslab]

I'm submitting a ... (check one with "x")

[ ] bug report => Search github for a similar issue or PR before submitting
[x ] feature request => Please check if request is not on the roadmap already https://github.com/primefaces/primeng/wiki/Roadmap
[ ] support request => Please do not submit support request here, instead see http://forum.primefaces.org/viewforum.php?f=35

Current behavior
There is no keyboard support in tree component. If user needs to expand or collapse or select a tree node, he has to use mouse.

Expected behavior
As you know, for 508 compliance, we need to enable keyboard support. Could you please keyboard support for tree component.

What is the motivation / use case for changing the behavior?
508 Compliance

Please tell us about your environment:

• Angular version: 2.0.X
  2.4.1

• PrimeNG version: 2.0.X
  1.1.2

• Browser: [all | Chrome XX | Firefox XX | IE XX | Safari XX | Mobile Chrome XX | Android X.X Web Browser | iOS XX Safari | iOS XX UIWebView | iOS XX WKWebView ]
  Reproduces in All browsers

• Language: [all | TypeScript X.X | ES6/7 | ES5]
  Typescript

• Node (for AoT issues): node --version =
  6.0

[debslab]

any update in this issue? basically if you are planning to add keyboard support to expand, collapse and select tree nodes...

[dojchek]

I ran into the same issue today.. Would be so nice if this feature gets in.
@debslab What did you do in the end? Walk-around or switched to another component?

[debslab]

I switched to a different component - https://github.com/500tech/angular2-tree-component

[Murthybhat]

any updates on this issue ?

[cagataycivici]

We have it done for PrimeFaces and will do for PrimeNG as well.