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 within the notification. This currently means a button click, but other control types will be added in future releases.
The notification expired.
The action was triggered programmatically by an application.
Not currently supported - will be implemented in a future release
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.
User has submitted a form.
Lists the different triggers that can raise an action. Each action that is raised will result in a
notification-action
event, which can be captured by the application that created the notification.