antd/es/_util/motion.js

An enterprise-class UI design language and React components implementation

import { defaultPrefixCls } from '../config-provider';
import { isPlainObject } from './is';
// ================== Collapse Motion ==================
const getCollapsedHeight = () => ({
  height: 0,
  opacity: 0
});
const getRealHeight = node => ({
  height: node?.scrollHeight ?? 0,
  opacity: node ? 1 : 0
});
const getCurrentHeight = node => ({
  height: node?.offsetHeight ?? 0
});
const isTransitionEvent = event => {
  return isPlainObject(event) && 'propertyName' in event;
};
const skipOpacityTransition = (_, event) => {
  return event?.deadline === true || (isTransitionEvent(event) ? event.propertyName === 'height' : false);
};
const initCollapseMotion = (rootCls = defaultPrefixCls) => ({
  motionName: `${rootCls}-motion-collapse`,
  onAppearStart: getCollapsedHeight,
  onEnterStart: getCollapsedHeight,
  onAppearActive: getRealHeight,
  onEnterActive: getRealHeight,
  onLeaveStart: getCurrentHeight,
  onLeaveActive: getCollapsedHeight,
  onAppearEnd: skipOpacityTransition,
  onEnterEnd: skipOpacityTransition,
  onLeaveEnd: skipOpacityTransition,
  motionDeadline: 500
});
const _SelectPlacements = ['bottomLeft', 'bottomRight', 'topLeft', 'topRight'];
const getTransitionName = (rootPrefixCls, motion, transitionName) => {
  if (transitionName !== undefined) {
    return transitionName;
  }
  return `${rootPrefixCls}-${motion}`;
};
export { getTransitionName };
export default initCollapseMotion;