@material-ui/core/es/Collapse/Collapse.js

import _extends from "@babel/runtime/helpers/esm/extends";
import _objectWithoutPropertiesLoose from "@babel/runtime/helpers/esm/objectWithoutPropertiesLoose";
import * as React from 'react';
import clsx from 'clsx';
import PropTypes from 'prop-types';
import { chainPropTypes } from '@material-ui/utils';
import { Transition } from 'react-transition-group';
import withStyles from '../styles/withStyles';
import { duration } from '../styles/transitions';
import deprecatedPropType from '../utils/deprecatedPropType';
import { getTransitionProps } from '../transitions/utils';
import useTheme from '../styles/useTheme';
import { useForkRef } from '../utils';
export const styles = theme => ({
  /* Styles applied to the root element. */
  root: {
    height: 0,
    overflow: 'hidden',
    transition: theme.transitions.create('height')
  },

  /* Styles applied to the root element when the transition has entered. */
  entered: {
    height: 'auto',
    overflow: 'visible'
  },

  /* Styles applied to the root element when the transition has exited and `collapsedSize` != 0px. */
  hidden: {
    visibility: 'hidden'
  },

  /* Styles applied to the outer wrapper element. */
  wrapper: {
    // Hack to get children with a negative margin to not falsify the height computation.
    display: 'flex'
  },

  /* Styles applied to the inner wrapper element. */
  wrapperInner: {
    width: '100%'
  }
});
/**
 * The Collapse transition is used by the
 * [Vertical Stepper](/components/steppers/#vertical-stepper) StepContent component.
 * It uses [react-transition-group](https://github.com/reactjs/react-transition-group) internally.
 */

const Collapse = /*#__PURE__*/React.forwardRef(function Collapse(props, ref) {
  const {
    children,
    classes,
    className,
    collapsedHeight,
    collapsedSize: collapsedSizeProp = '0px',
    component: Component = 'div',
    disableStrictModeCompat = false,
    in: inProp,
    onEnter,
    onEntered,
    onEntering,
    onExit,
    onExited,
    onExiting,
    style,
    timeout = duration.standard,
    // eslint-disable-next-line react/prop-types
    TransitionComponent = Transition
  } = props,
        other = _objectWithoutPropertiesLoose(props, ["children", "classes", "className", "collapsedHeight", "collapsedSize", "component", "disableStrictModeCompat", "in", "onEnter", "onEntered", "onEntering", "onExit", "onExited", "onExiting", "style", "timeout", "TransitionComponent"]);

  const theme = useTheme();
  const timer = React.useRef();
  const wrapperRef = React.useRef(null);
  const autoTransitionDuration = React.useRef();
  const collapsedSize = typeof (collapsedHeight || collapsedSizeProp) === 'number' ? `${collapsedHeight || collapsedSizeProp}px` : collapsedHeight || collapsedSizeProp;
  React.useEffect(() => {
    return () => {
      clearTimeout(timer.current);
    };
  }, []);
  const enableStrictModeCompat = theme.unstable_strictMode && !disableStrictModeCompat;
  const nodeRef = React.useRef(null);
  const handleRef = useForkRef(ref, enableStrictModeCompat ? nodeRef : undefined);

  const normalizedTransitionCallback = callback => (nodeOrAppearing, maybeAppearing) => {
    if (callback) {
      const [node, isAppearing] = enableStrictModeCompat ? [nodeRef.current, nodeOrAppearing] : [nodeOrAppearing, maybeAppearing]; // onEnterXxx and onExitXxx callbacks have a different arguments.length value.

      if (isAppearing === undefined) {
        callback(node);
      } else {
        callback(node, isAppearing);
      }
    }
  };

  const handleEnter = normalizedTransitionCallback((node, isAppearing) => {
    node.style.height = collapsedSize;

    if (onEnter) {
      onEnter(node, isAppearing);
    }
  });
  const handleEntering = normalizedTransitionCallback((node, isAppearing) => {
    const wrapperHeight = wrapperRef.current ? wrapperRef.current.clientHeight : 0;
    const {
      duration: transitionDuration
    } = getTransitionProps({
      style,
      timeout
    }, {
      mode: 'enter'
    });

    if (timeout === 'auto') {
      const duration2 = theme.transitions.getAutoHeightDuration(wrapperHeight);
      node.style.transitionDuration = `${duration2}ms`;
      autoTransitionDuration.current = duration2;
    } else {
      node.style.transitionDuration = typeof transitionDuration === 'string' ? transitionDuration : `${transitionDuration}ms`;
    }

    node.style.height = `${wrapperHeight}px`;

    if (onEntering) {
      onEntering(node, isAppearing);
    }
  });
  const handleEntered = normalizedTransitionCallback((node, isAppearing) => {
    node.style.height = 'auto';

    if (onEntered) {
      onEntered(node, isAppearing);
    }
  });
  const handleExit = normalizedTransitionCallback(node => {
    const wrapperHeight = wrapperRef.current ? wrapperRef.current.clientHeight : 0;
    node.style.height = `${wrapperHeight}px`;

    if (onExit) {
      onExit(node);
    }
  });
  const handleExited = normalizedTransitionCallback(onExited);
  const handleExiting = normalizedTransitionCallback(node => {
    const wrapperHeight = wrapperRef.current ? wrapperRef.current.clientHeight : 0;
    const {
      duration: transitionDuration
    } = getTransitionProps({
      style,
      timeout
    }, {
      mode: 'exit'
    });

    if (timeout === 'auto') {
      const duration2 = theme.transitions.getAutoHeightDuration(wrapperHeight);
      node.style.transitionDuration = `${duration2}ms`;
      autoTransitionDuration.current = duration2;
    } else {
      node.style.transitionDuration = typeof transitionDuration === 'string' ? transitionDuration : `${transitionDuration}ms`;
    }

    node.style.height = collapsedSize;

    if (onExiting) {
      onExiting(node);
    }
  });

  const addEndListener = (nodeOrNext, maybeNext) => {
    const next = enableStrictModeCompat ? nodeOrNext : maybeNext;

    if (timeout === 'auto') {
      timer.current = setTimeout(next, autoTransitionDuration.current || 0);
    }
  };

  return /*#__PURE__*/React.createElement(TransitionComponent, _extends({
    in: inProp,
    onEnter: handleEnter,
    onEntered: handleEntered,
    onEntering: handleEntering,
    onExit: handleExit,
    onExited: handleExited,
    onExiting: handleExiting,
    addEndListener: addEndListener,
    nodeRef: enableStrictModeCompat ? nodeRef : undefined,
    timeout: timeout === 'auto' ? null : timeout
  }, other), (state, childProps) => /*#__PURE__*/React.createElement(Component, _extends({
    className: clsx(classes.root, classes.container, className, {
      'entered': classes.entered,
      'exited': !inProp && collapsedSize === '0px' && classes.hidden
    }[state]),
    style: _extends({
      minHeight: collapsedSize
    }, style),
    ref: handleRef
  }, childProps), /*#__PURE__*/React.createElement("div", {
    className: classes.wrapper,
    ref: wrapperRef
  }, /*#__PURE__*/React.createElement("div", {
    className: classes.wrapperInner
  }, children))));
});
process.env.NODE_ENV !== "production" ? Collapse.propTypes = {
  // ----------------------------- Warning --------------------------------
  // | These PropTypes are generated from the TypeScript type definitions |
  // |     To update them edit the d.ts file and run "yarn proptypes"     |
  // ----------------------------------------------------------------------

  /**
   * The content node to be collapsed.
   */
  children: PropTypes.node,

  /**
   * Override or extend the styles applied to the component.
   * See [CSS API](#css) below for more details.
   */
  classes: chainPropTypes(PropTypes.object, props => {
    if (props.classes && props.classes.container) {
      throw new Error(['Material-UI: the classes.container key is deprecated.', 'Use `classes.root` instead', 'The name of the pseudo-class was changed for consistency.'].join('\n'));
    }

    return null;
  }),

  /**
   * @ignore
   */
  className: PropTypes.string,

  /**
   * The height of the container when collapsed.
   * @deprecated The prop was renamed to support the addition of horizontal orientation, use `collapsedSize` instead.
   */
  collapsedHeight: deprecatedPropType(PropTypes.oneOfType([PropTypes.number, PropTypes.string]), 'The prop was renamed to support the vertical orientation, use `collapsedSize` instead'),

  /**
   * The height of the container when collapsed.
   */
  collapsedSize: PropTypes.oneOfType([PropTypes.number, PropTypes.string]),

  /**
   * The component used for the root node.
   * Either a string to use a HTML element or a component.
   */
  component: PropTypes
  /* @typescript-to-proptypes-ignore */
  .elementType,

  /**
   * Enable this prop if you encounter 'Function components cannot be given refs',
   * use `unstable_createStrictModeTheme`,
   * and can't forward the ref in the passed `Component`.
   */
  disableStrictModeCompat: PropTypes.bool,

  /**
   * If `true`, the component will transition in.
   */
  in: PropTypes.bool,

  /**
   * @ignore
   */
  onEnter: PropTypes.func,

  /**
   * @ignore
   */
  onEntered: PropTypes.func,

  /**
   * @ignore
   */
  onEntering: PropTypes.func,

  /**
   * @ignore
   */
  onExit: PropTypes.func,

  /**
   * @ignore
   */
  onExited: PropTypes.func,

  /**
   * @ignore
   */
  onExiting: PropTypes.func,

  /**
   * @ignore
   */
  style: PropTypes.object,

  /**
   * The duration for the transition, in milliseconds.
   * You may specify a single timeout for all transitions, or individually with an object.
   *
   * Set to 'auto' to automatically calculate transition time based on height.
   */
  timeout: PropTypes.oneOfType([PropTypes.oneOf(['auto']), PropTypes.number, PropTypes.shape({
    appear: PropTypes.number,
    enter: PropTypes.number,
    exit: PropTypes.number
  })])
} : void 0;
Collapse.muiSupportAuto = true;
export default withStyles(styles, {
  name: 'MuiCollapse'
})(Collapse);