ice3-software/i3-dragndrop — pull request #26 by tcirwin (2014-08-08 01:01:19+00:00)
Title: Enable drag and drop into an empty VC

Including nil drop indexes when a drop event occurs lets the user drag and drop a cell into an empty Collection/Table VC.

I'm using the draggingView handler to detect when a cell is in a hover state over the destination view.