Method setDragging

packages/utils/src/cursor.ts:6–12

(flag: boolean)

  private states = new Set<string>();

  setDragging(flag: boolean) {
    if (flag) {
      this.addState('dragging');
    } else {
      this.removeState('dragging');
    }
  }

  setXResizing(flag: boolean) {
    if (flag) {