overscroll/es/init.js

scroll

import { set } from './utils/css';

export default function (scope) {
  var target = scope.target,
      axis = scope.axis,
      hasX = scope.hasX,
      hasY = scope.hasY,
      setData = scope.domData.setData,
      OVERSCROLL = scope.OVERSCROLL,
      OVERSCROLLX = scope.OVERSCROLLX,
      OVERSCROLLY = scope.OVERSCROLLY,
      BUBBLE = scope.BUBBLE,
      NOBUBBLE = scope.NOBUBBLE,
      bubble = scope.bubble,
      resetCache = scope.resetCache;

  // 添加样式

  set(target, 'overflow', 'hidden');

  // DOM 打上标记
  setData(target, OVERSCROLL);

  if (hasX(axis)) {
    setData(target, OVERSCROLLX);
  }

  if (hasY(axis)) {
    setData(target, OVERSCROLLY);
  }

  setData(target, bubble ? BUBBLE : NOBUBBLE);

  // 初始化缓存
  resetCache();

  return scope;
}