Value change listener for input fields

[jaynaikaub]

For any input fields in the x-editables I want to attach a listener so that whenever a user opens let's say a x-editable popover textarea and makes an edit and clicks outside the popover it dismisses and the changes are lost.
To prevent this I want to attach a listener for value change so that I can set the 'onblur' option to 'ignore' dynamically.