onFocus Callback

The onFocus( ) callback invokes the function registered against this event when the hosted field in the iFrame has gained focus.

PaymentSession.onFocus([HostedFieldsRole], function(selector));

PaymentSession.onFocus(['card.number', 'card.securityCode'], function(selector) {
    //handle focus event
});

HostedFieldsRole Array

An array of field roles for the hosted fields where the event occurred. Valid array of field roles:

card.number

card.securityCode

giftCard.number

giftCard.pin

ach.bankAccountNumber

ach.bankAccountHolder

ach.routingNumber

callbackFunction Function

The callback function invoked with the selector for the field whose proxy triggered the event.

None