// Declaration for ResizeObserver a new API available in some of newest browsers:
// https://developer.mozilla.org/en-US/docs/Web/API/ResizeObserver
declare class ResizeObserver {
}

/** Helper with compatibility functions to support different browsers */
export class CompatibilityHelper {
  /** Workaround for TouchEvent constructor sadly not being available on all browsers (e.g. Firefox, Safari) */
  public static isTouchEvent(event: any): boolean {
    if ((window as any).TouchEvent !== undefined) {
      return event instanceof TouchEvent;
    }

    return event.touches !== undefined;
  }

  /** Detect presence of ResizeObserver API */
  public static isResizeObserverAvailable(): boolean {
    return (window as any).ResizeObserver !== undefined;
  }
}