The drop point information object.
The bounding rectangle of the element being dragged over. It will be used for positioning the indicator and constraining it's width (target.x < indicator < target.right).
Determines the additional indentation to add when indicating a child drop operation. You normally want this to be the indentation of the dragged item.
Can be gotten with getElPropertyAsInt, see it for details.
Maximum width of the drop indicator. See getElMaxVisualSize.
Calculates the position and type of the drop indicator based on the pointer coordinates and the target element's bounding rectangle.