import { EventEmitter } from '../../stencil-public-runtime';
interface ListElement {
  item: HTMLElement;
  position: number;
  dragShift?: number;
}
export declare class FtbVirtualScroll {
  items: any[];
  itemHeightPx: number;
  renderItem: (item: any) => string;
  sortable: boolean;
  sorted: EventEmitter;
  itemsPerViewport: number;
  draggedItem: ListElement;
  lastDragY: number;
  lastScrollY: number;
  el: HTMLElement;
  elements: {
    [position: number]: ListElement;
  };
  constructor();
  componentDidLoad(): Promise<void>;
  onScroll(): void;
  disconnectedCallback(): void;
  renderRange(scrollTop: number): void;
  onTouchStart(e: TouchEvent): void;
  onTouchEnd(): void;
  onMouseDown(e: MouseEvent): void;
  onMouseMove(e: MouseEvent): void;
  onTouchMove(e: TouchEvent): void;
  onItemYChanged(diffY: number): void;
  onMouseUp(): void;
  render(): any;
}
export {};