@douyinfe/semi-animation/lib/es/src/shouldStopAnimation.js

animation base library for semi-ui

import shouldUseBezier from './shouldUseBezier';
/**
 * usage assumption: currentStyle values have already been rendered but it says
 * nothing of whether currentStyle is stale (see unreadPropStyle)
 *
 * @param {object} currentStyle
 * @param {object} style
 * @param {object} currentVelocity
 * @param {number} startTime
 * @param {number} nowTime
 *
 * @returns {boolean}
 */
export default function shouldStopAnimation(currentStyle, style, currentVelocity, startTime, nowTime) {
  for (const key of Object.keys(style)) {
    const styleValue = style[key];
    const value = typeof styleValue === 'number' ? styleValue : styleValue.val;
    if (typeof styleValue === 'object' && styleValue.done) {
      continue;
    }
    if (shouldUseBezier(styleValue) && startTime && nowTime && styleValue.duration) {
      if (styleValue.duration + startTime <= nowTime || value !== currentStyle[key]) {
        return false;
      }
    } else if (typeof currentVelocity[key] === 'number' && currentVelocity[key] !== 0) {
      return false;
    }
    // stepper will have already taken care of rounding precision errors, so
    // won't have such thing as 0.9999 !=== 1
    if (currentStyle[key] !== value) {
      return false;
    }
  }
  return true;
}