unselect

Triggered when the current selection is cleared.

function( info )

A selection might be cleared for a number of reasons:

The user clicks away from the current selection (doesn’t happen when unselectAuto is false).
The user makes a new selection. The unselect handler will be fired before the new selection occurs.
The user moves forward or backward in the current view, or switches to a new view.
The unselect method is called through the API.

info is a plain object with the following properties:

jsEvent - the native JavaScript event with information such as mouse coordinates. If unselect has been triggered via the unselect method, jsEvent will be null.
view - the current View Object.