Success Criterion 2.5.7 - Level AA
Dragging Movements
All functionality that uses a dragging movement for operation can be achieved by a single pointer without dragging, unless dragging is essential or the functionality is determined by the user agent and not modified by the author.
The intent of this Success Criterion is to ensure functionality that uses a dragging movement has another single pointer mode of operation without the need for the dexterity required to drag elements.