Function createMouseEvent

packages/dom-event-testing-library/domEvents.js:167–217

(
  type,
  {
    altKey = false,
    button = buttonType.none,
    buttons = buttonsType.none,
    ctrlKey = false,
    detail = 1,
    metaKey = false,
    movementX = 0,
    movementY = 0,
    offsetX = 0,
    offsetY = 0,
    pageX,
    pageY,
    preventDefault = emptyFunction,
    screenX,
    screenY,
    shiftKey = false,
    timeStamp,
    x = 0,
    y = 0,
  } = {},
)

}

function createMouseEvent(
  type,
  {
    altKey = false,
    button = buttonType.none,
    buttons = buttonsType.none,
    ctrlKey = false,
    detail = 1,
    metaKey = false,
    movementX = 0,
    movementY = 0,
    offsetX = 0,
    offsetY = 0,
    pageX,
    pageY,
    preventDefault = emptyFunction,
    screenX,
    screenY,
    shiftKey = false,
    timeStamp,
    x = 0,
    y = 0,
  } = {},
) {
  const modifierState = {altKey, ctrlKey, metaKey, shiftKey};

  return createEvent(type, {
    altKey,
    button,
    buttons,
    clientX: x,
    clientY: y,
    ctrlKey,
    detail,
    getModifierState(keyArg) {
      return createGetModifierState(keyArg, modifierState);
    },
    metaKey,
    movementX,
    movementY,
    offsetX,
    offsetY,
    pageX: pageX || x,
    pageY: pageY || y,
    preventDefault,
    screenX: screenX === 0 ? screenX : x,
    screenY: screenY === 0 ? screenY : y + defaultBrowserChromeSize,
    shiftKey,
    timeStamp,
  });
}

function createTouchEvent(type, payload) {
  return createEvent(type, {