@better-scroll/core/src/animater/index.ts

Minimalistic core scrolling for BetterScroll, it is pure and tiny

import Translater from '../translater'
import { Options as BScrollOptions } from '../Options'

import Animater from './Base'
import Transition from './Transition'
import Animation from './Animation'

export { Animater, Transition, Animation }

export default function createAnimater(
  element: HTMLElement,
  translater: Translater,
  options: BScrollOptions
) {
  const useTransition = options.useTransition
  let animaterOptions = {}
  Object.defineProperty(animaterOptions, 'probeType', {
    enumerable: true,
    configurable: false,
    get() {
      return options.probeType
    },
  })
  if (useTransition) {
    return new Transition(
      element,
      translater,
      animaterOptions as {
        probeType: number
      }
    )
  } else {
    return new Animation(
      element,
      translater,
      animaterOptions as {
        probeType: number
      }
    )
  }
}