abstract class Gesture {
  private callback = null;
  constructor(eventName, callback) {
    this.callback = callback;
  }
  protected dispatchEvent(event, params = null) {
    this.callback(event, params);
  }

  abstract handleTouchStart(event);
  abstract handleTouchMove(event);
  abstract handleTouchEnd(event);
}


const THRESHOLD = {
  PAN_BEFORE_HOLD: 100,
  HOLD: 800,
  DOUBLE_TAP: 300,
  TAP: 500,
};

export { Gesture, THRESHOLD };