Can I check this getClosestItemAt method ? Where is object's coordinates ? If I write x an y direct in code - this method still return null. I take x y coordinates from js console after selected object by code. i.e.:
selecting object: and I take x y from itemSel[0].x and itemSel[0].y
I write this to my listener (from now always return this coordinates), and still i have null after use getClosestItemAt(x,y).

I thought i have to translate x,y from mouse, to have always the same coordinates, independed from actual view of camera, coresponding with object's x and y.