Occurs when item is dragged into TreeView space.
|e||Object||An event object which contains the dragItem and mousePos objects|
This event can be handled by creating a function in your application controller $scope and applying this function as value to an attribute in TreeView directive:
The events attribute has a higher priority than the drag-enter attribute. If both attributes are set, the value from events attribute is used.
The mousePos object associated with this event holds coordinates of mouse position relative to the parent page.
Supported in: v1.0.