Usage
PaymentSession.onFocus([<HostedFieldsRole>],function(selector))
Example
PaymentSession.onFocus(['cardNumber', 'securityCode'], function(selector) {
//handle focus event
});
Arguments
<HostedFieldsRole>
Array
COMPULSORY
An array of field roles for the hosted fields where the event occurred. Valid array of field roles: ['cardNumber','securityCode']
<callbackFunction>
Function
COMPULSORY
The callback function invoked with the selector for the field whose proxy triggered the event.
Return Value
None