Function createTouch

packages/dom-event-testing-library/domEventSequences.js:26–53

* Converts a PointerEvent payload to a Touch

(target, payload)

 * Converts a PointerEvent payload to a Touch
 */
function createTouch(target, payload) {
  const {
    height = defaultPointerSize,
    pageX,
    pageY,
    pointerId,
    pressure = 1,
    twist = 0,
    width = defaultPointerSize,
    x = 0,
    y = 0,
  } = payload;

  return {
    clientX: x,
    clientY: y,
    force: pressure,
    identifier: pointerId,
    pageX: pageX || x,
    pageY: pageY || y,
    radiusX: width / 2,
    radiusY: height / 2,
    rotationAngle: twist,
    target,
    screenX: x,
    screenY: y + defaultBrowserChromeSize,
  };
}

/**
 * Converts a PointerEvent to a TouchEvent