The only widget action supported in CSS is the mouse click. If you want to process the text in the text input, use a button and a script as the action. You can do something like this python script
text_input = display.getWidget('Widget name goes here')
text = text_input.getValue() # or text_input.getPropertyValue('text')
And then you can process the text as you want.
From: firstname.lastname@example.org [mailto:email@example.com]
On Behalf Of Gregory, Ray
Sent: Wednesday, May 09, 2018 9:08 PM
Subject: CSS Boy Text Input widget perform Action after value change
In a CSS Boy OPI I have a Text Input widget, and I would like to trigger an action whenever the user changes the value/presses the enter button. Just adding the desired Action to the Behavior does not appear to trigger the action when the
user presses Enter. Can you please tell me what I am missing?