Interface that should be implemented to receive trigger change callbacks from the TriggerProvider

A trivial implementation of TriggerListener would be:

// A caplin.streamlink.alerts.TriggerListener that can handle // every possible callback. // // This trivial implementation just logs the callbacks // var triggerService = new caplin.streamlink.alerts.TriggerService(streamlink); triggerService.addListener( { onTriggerUpdated: function(trigger) { console.log("onTriggerUpdated(" + trigger.toString() + ")"); }, onTriggerAdded: function(trigger) { console.log("onTriggerAdded(" + trigger.toString() + ")"); }, onTriggerRemoved: function(trigger) { console.log("onTriggerRemoved(" + trigger.toString() + ")"); }, onServiceStatus: function(status) { console.log("onServiceStatus(" + status + ")"); } });