zscroller

dom scroller based on zynga scroller

Example

http://localhost:6006/examples/

online example: http://yiminghe.github.io/zscroller/

install

API

typed

interface ViewportSize {
    width: number;
    height: number;
}
interface ContentSize {
    width: number;
    height: number;
}
interface X {
    // scrollbar x size
    width: number;
    height?: number;
    scrollbar?: {
        style: any;
    };
    indicator?: {
        style: any;
    };
}
interface Y {
    width?: number;
     // scrollbar y height
    height: number;
    scrollbar?: {
        style: any;
    };
    indicator?: {
        style: any;
    };
}

//  minZoom defaults to 0.1
//  maxZoom defaults to 10
// locking defaults to true
//  defaultScrollX defaults to 0
//  defaultScrollY defaults to 0
//  defaultZoom defaults to 1
interface IZScrollerOption {
  minZoom?: number;
  maxZoom?: number;
  minIndicatorSize?: number;
  zooming?: boolean;
  locking?: boolean;
  viewport: IViewportSize;
  content: IContentSize;
  x?: X;
  y?: Y;
  defaultScrollX?:number;
  defaultScrollY?:number;
  defaultZoom?:number;
  container?: HTMLElement;
  scrollingComplete?: () => any;
  onScroll?: (x: number, y: number, zoom: number) => any;
}
declare class ZScroller {
    constructor(_options: ZScrollerOption);
    scrollTo(x: number, y: number, animate: boolean): void;
    scrollBy(x: number, y: number, animate: boolean): void;
    getScrollbar(type: any): HTMLElement;
    getScrollPosition(): {x:number;y:number;};
    setDisabled(disabled: any): void;
    // relayout
    setDimensions({ viewport, content, x, y, }?: {
        viewport?: ViewportSize;
        content?: ContentSize;
        x?: X;
        y?: Y;
    }): void;
    destroy(): void;
}

usage

import ZScroller from 'zscroller';

const zscroller = new ZScroller({
    container: container,
    viewport: {
      height: container.clientHeight - 20, // padding
      width: container.clientWidth - 20,
    },
    content: {
      width: content.offsetWidth,
      height: content.offsetHeight
    },
    x: {
      width: container.current.clientWidth - 4, // padding

    },
    y: {
      height: container.current.clientHeight - 4, // padding
    },
    onScroll(left, top) {
      content.style.transform = `translate3d(${-left}px,${-top}px,0)`
      content.style.webkitTransform = `translate3d(${-left}px,${-top}px,0)`;
    }
  });
container.appendChild(zscroller.getScrollbar('x'));
container.appendChild(zscroller.getScrollbar('y'));

License

zscroller is released under the MIT license.