Draggable uses this sensor by default
Picks up browser touch events and triggers the events below on a source container.
drag:startdrag:movedrag:stop
new TouchSensor(containers: HTMLElement[]|NodeList|HTMLElement, options: Object): TouchSensor
To create a touch sensor, specify the containers it should pay attention to. Sensors will always
trigger sensor events on container element.
touchSensor.attach(): void
Attaches sensors to the DOM
touchSensor.detach(): void
Detaches sensors to the DOM
delay {Number}
This value will delay touch start