A PortalEvent is an event generated by the uPortal framework and broadcast to affected channnels.
Kinds of PortalEvents
Framework-generated events
renderingDone
I believe that "renderingDone" is currently never sent. See JIRA issue
sessionDone
Session done signifies the end of the user session. Channels that have been instantiated in the course of the user's session receive the event "sessionDone" when that session ends.
unsubscribe
Sent to channels which the user permanently removes from his or her layout.
Layout-generated events
editButtonEvent
Sent to channels when the user actuates the channel's edit button.
helpButtonEvent
Sent to channels when the user actuates the channel's help button.
aboutButtonEvent
Sent to channels when the user actuates the channel's about button.
detachButtonEvent
Sent to channels when the user actuates the channel's detach button.
MINIMIZE
Sent to channels when the user actuates the channel's minimize button.
MAXIMIZE
Sent to channels when the user actuates the channel's maximize button.