How to detect keyboard input with TVML/TVJS

Question

As the title suggests, I would like to know how to detect keyboard input using a TVML template and using the TVJS design pattern found in the Apple Catalog Project

For example: when Search.xml.js is displayed, and the user selects the 'a' key on the keyboard, how can I detect that they have selected the 'a' key?

Answer 1

After digging into the Apple Docs I was able to find the answer.

Here is the reference for Keyboard onTextChange

Here is an example of it's use:

var doc = Presenter.makeDocument(resource);
var searchField = doc.getElementById("SearchField"); //I added an id to the searchField to make it easy to access.
var keyboard = searchField.getFeature("Keyboard");
    keyboard.onTextChange = function () {                                
      swiftLog(keyboard.text);
    };