antd/es/style/motion/motion.js

An enterprise-class UI design language and React components implementation

const initMotionCommon = duration => ({
  animationDuration: duration,
  animationFillMode: 'both'
});
// FIXME: origin less code seems same as initMotionCommon. Maybe we can safe remove
const initMotionCommonLeave = duration => ({
  animationDuration: duration,
  animationFillMode: 'both'
});
export const initMotion = (motionCls, inKeyframes, outKeyframes, duration, sameLevel = false) => {
  const sameLevelPrefix = sameLevel ? '&' : '';
  return {
    [`
      ${sameLevelPrefix}${motionCls}-enter,
      ${sameLevelPrefix}${motionCls}-appear
    `]: {
      ...initMotionCommon(duration),
      animationPlayState: 'paused'
    },
    [`${sameLevelPrefix}${motionCls}-leave`]: {
      ...initMotionCommonLeave(duration),
      animationPlayState: 'paused'
    },
    [`
      ${sameLevelPrefix}${motionCls}-enter${motionCls}-enter-active,
      ${sameLevelPrefix}${motionCls}-appear${motionCls}-appear-active
    `]: {
      animationName: inKeyframes,
      animationPlayState: 'running'
    },
    [`${sameLevelPrefix}${motionCls}-leave${motionCls}-leave-active`]: {
      animationName: outKeyframes,
      animationPlayState: 'running',
      pointerEvents: 'none'
    }
  };
};