gtk:list-box-drag-highlight-row (listbox row)

listbox -- a gtk:list-box widget
row -- a gtk:list-box-row widget

Add a drag highlight to a row. This is a helper function for implementing DnD onto a gtk:list-box widget. The passed in row will be highlighted by setting the :drop-active state from the gtk:state-flags flags and any previously highlighted row will be unhighlighted.

The row will also be unhighlighted when the widget gets a drag leave event.