w-touch

特点

1. 支持鼠标和手指操作 (内部统一Mouse & Touch事件处理)
2. 使用 TypeScript 编写，内置类型定义文件，良好的智能提示
3. 支持多种手势

手势

1. 单击 onSingleTap
2. 双击 onDoubleTap
3. 长按 onLongTap
4. 旋转 onRotate
5. 缩放 onPinch
6. 单指滑动 onPressMove
7. 滑动方向判断 onSwipe
8. 双指滑动 onTwoFingerPressMove

js 使用

import Touch from 'w-touch';

// 构造对象,参数见下面类型定义说明
const touch = new Touch(el as Element, {
      onDoubleTap() {
        
      },
      onLongTap() {
       
      },
      onPinch({ scale }) {
       
      },
      onRotate({ angle }) {
      
      },
      onPressMove({ deltaX, deltaY }) {
      
      },
      onSwipe({ direction }) {
       
      },
    });

    // 销毁
    touch.destroy();

React 绑定 (Vue同理)

import * as React from 'react';
import Touch, { Options } from 'w-touch';

type Props = {
  /** 手势操作元素,如果是组件，需要forwardRef到dom */
  children: React.ReactElement;
} & Options;

const checkFailed = () => {
  throw new Error('TouchElement: 子元素必须是dom/forwardRef到dom的组件');
};

/** 给子元素添加手势操作 */
const TouchElement = React.forwardRef<Element, Props>((props, ref) => {
  const { children, ...rest } = props;
  const elRef = React.useRef<Element>(null);

  React.useImperativeHandle(ref, () => elRef.current as Element);

  React.useLayoutEffect(() => {
    const el = elRef.current;
    if (!(el instanceof Element)) {
      checkFailed();
    }

    const fg = new Touch(el as Element, rest as Options);

    return () => {
      fg.destroy();
    };
  }, []);

  if (!React.isValidElement(children)) {
    checkFailed();
  }

  return <children.type {...(children.props as Record<string, unknown>)} ref={elRef} />;
});

TouchElement.displayName = 'TouchElement';

export default TouchElement;

事件类型

type Options = Partial<{
  onTouchStart: (evt: WTouchEvent) => void,
  onTouchMove: (evt: WTouchEvent) => void,
  onTouchEnd: (evt: WTouchEvent) => void,
  onTouchCancel: (evt: WTouchEvent) => void,
  onMultipointStart: (evt: WTouchEvent) => void,
  onMultipointEnd: (evt: WTouchEvent) => void,
  /** 点两次 */
  onDoubleTap: () => void,
  /** 长按 */
  onLongTap: () => void,
  /** 按一次 */
  onSingleTap: () => void,
  /** 旋转, 单位:deg */
  onRotate: (evt: WTouchEvent & { angle: number }) => void,
  /** 缩放  */
  onPinch: (evt: WTouchEvent & { scale: number }) => void,
  /** 单指滑动 */
  onPressMove: (evt: WTouchEvent & { deltaX: number, deltaY: number }) => void,
  /** 左右滑动 */
  onSwipe: (evt: WTouchEvent & { direction: 'left' | 'right' | 'up' | 'down' }) => void,
  /** 双指滑动 */
  onTwoFingerPressMove: (evt: WTouchEvent & { deltaX: number, deltaY: number }) => void,
}>;