Function createDragRef

src/cdk/drag-drop/drag-ref.ts:136–157

(
  injector: Injector,
  element: ElementRef<HTMLElement> | HTMLElement,
  config: DragRefConfig = {
    dragStartThreshold: 5,
    pointerDirectionChangeThreshold: 5,
  },
)

 * @param config Object used to configure the dragging behavior.
 */
export function createDragRef<T = unknown>(
  injector: Injector,
  element: ElementRef<HTMLElement> | HTMLElement,
  config: DragRefConfig = {
    dragStartThreshold: 5,
    pointerDirectionChangeThreshold: 5,
  },
): DragRef<T> {
  const renderer =
    injector.get(Renderer2, null, {optional: true}) ||
    injector.get(RendererFactory2).createRenderer(null, null);

  return new DragRef(
    element,
    config,
    injector.get(DOCUMENT),
    injector.get(NgZone),
    injector.get(ViewportRuler),
    injector.get(DragDropRegistry),
    renderer,
  );
}

/**
 * Reference to a draggable item. Used to manipulate or dispose of the item.