The notification was closed, either by user interaction, programmatically by an application, or by the notification expiring.
The user interacted with one of the controls in the notification: a button or an actionable fragment.
The notification expired.
The action was triggered programmatically by an application.
Not currently supported
The user clicked the body of the notification itself. Any clicks of the notification that don't hit a control
or the close button will fire an event with the 'select' action trigger.
Lists the different triggers that can raise an Actions|action. Each action that is raised will result in a NotificationActionEvent|
notification-actionevent, which can be captured by the application that created the notification.