Interface that should be implemented to receive notification change callbacks from the NotificationProvider

A trivial implementation of NotificationListener would be:

// A caplin.streamlink.alerts.NotificationListener that can handle // every possible callback. // // This trivial implementation just logs the callbacks // var notificationService = new caplin.streamlink.alerts.NotificationService(streamlink); notificationService.addListener( { onNotification: function(notification) { console.log("onNotification()(" + notification.toString() + ")"); }, onNotificationRemoved: function(notification) { console.log("onNotificationRemoved(" + notification.toString() + ")"); }, onServiceStatus: function(status) { console.log("onServiceStatus(" + status + ")"); } });