To avoid strain and accuracy requirements, iOS (and I imagine Android) support Accessibility extensions targeting drag motions - See Accessibility/Touch/AssistiveTouch.
It seems fair to have the logical gesture of a drag be provided accessibility support on a per-device basis. To the extent that any UI library is written in terms of underlying mouse clicks and locations, it would interfere with that support. So the real question is whether the UI library support for DnD can be managed using device accessibility.
It seems fair to have the logical gesture of a drag be provided accessibility support on a per-device basis. To the extent that any UI library is written in terms of underlying mouse clicks and locations, it would interfere with that support. So the real question is whether the UI library support for DnD can be managed using device accessibility.