@mui/material/modern/ButtonBase/TouchRipple.js

import _extends from "@babel/runtime/helpers/esm/extends";
import _objectWithoutPropertiesLoose from "@babel/runtime/helpers/esm/objectWithoutPropertiesLoose";
const _excluded = ["center", "classes", "className"];
import * as React from 'react';
import PropTypes from 'prop-types';
import { TransitionGroup } from 'react-transition-group';
import clsx from 'clsx';
import { keyframes } from '@mui/system';
import styled from '../styles/styled';
import useThemeProps from '../styles/useThemeProps';
import Ripple from './Ripple';
import touchRippleClasses from './touchRippleClasses';
import { jsx as _jsx } from "react/jsx-runtime";
const DURATION = 550;
export const DELAY_RIPPLE = 80;
const enterKeyframe = keyframes`
  0% {
    transform: scale(0);
    opacity: 0.1;
  }

  100% {
    transform: scale(1);
    opacity: 0.3;
  }
`;
const exitKeyframe = keyframes`
  0% {
    opacity: 1;
  }

  100% {
    opacity: 0;
  }
`;
const pulsateKeyframe = keyframes`
  0% {
    transform: scale(1);
  }

  50% {
    transform: scale(0.92);
  }

  100% {
    transform: scale(1);
  }
`;
export const TouchRippleRoot = styled('span', {
  name: 'MuiTouchRipple',
  slot: 'Root'
})({
  overflow: 'hidden',
  pointerEvents: 'none',
  position: 'absolute',
  zIndex: 0,
  top: 0,
  right: 0,
  bottom: 0,
  left: 0,
  borderRadius: 'inherit'
}); // This `styled()` function invokes keyframes. `styled-components` only supports keyframes
// in string templates. Do not convert these styles in JS object as it will break.

export const TouchRippleRipple = styled(Ripple, {
  name: 'MuiTouchRipple',
  slot: 'Ripple'
})`
  opacity: 0;
  position: absolute;

  &.${touchRippleClasses.rippleVisible} {
    opacity: 0.3;
    transform: scale(1);
    animation-name: ${enterKeyframe};
    animation-duration: ${DURATION}ms;
    animation-timing-function: ${({
  theme
}) => theme.transitions.easing.easeInOut};
  }

  &.${touchRippleClasses.ripplePulsate} {
    animation-duration: ${({
  theme
}) => theme.transitions.duration.shorter}ms;
  }

  & .${touchRippleClasses.child} {
    opacity: 1;
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: currentColor;
  }

  & .${touchRippleClasses.childLeaving} {
    opacity: 0;
    animation-name: ${exitKeyframe};
    animation-duration: ${DURATION}ms;
    animation-timing-function: ${({
  theme
}) => theme.transitions.easing.easeInOut};
  }

  & .${touchRippleClasses.childPulsate} {
    position: absolute;
    /* @noflip */
    left: 0px;
    top: 0;
    animation-name: ${pulsateKeyframe};
    animation-duration: 2500ms;
    animation-timing-function: ${({
  theme
}) => theme.transitions.easing.easeInOut};
    animation-iteration-count: infinite;
    animation-delay: 200ms;
  }
`;
/**
 * @ignore - internal component.
 *
 * TODO v5: Make private
 */

const TouchRipple = /*#__PURE__*/React.forwardRef(function TouchRipple(inProps, ref) {
  const props = useThemeProps({
    props: inProps,
    name: 'MuiTouchRipple'
  });

  const {
    center: centerProp = false,
    classes = {},
    className
  } = props,
        other = _objectWithoutPropertiesLoose(props, _excluded);

  const [ripples, setRipples] = React.useState([]);
  const nextKey = React.useRef(0);
  const rippleCallback = React.useRef(null);
  React.useEffect(() => {
    if (rippleCallback.current) {
      rippleCallback.current();
      rippleCallback.current = null;
    }
  }, [ripples]); // Used to filter out mouse emulated events on mobile.

  const ignoringMouseDown = React.useRef(false); // We use a timer in order to only show the ripples for touch "click" like events.
  // We don't want to display the ripple for touch scroll events.

  const startTimer = React.useRef(null); // This is the hook called once the previous timeout is ready.

  const startTimerCommit = React.useRef(null);
  const container = React.useRef(null);
  React.useEffect(() => {
    return () => {
      clearTimeout(startTimer.current);
    };
  }, []);
  const startCommit = React.useCallback(params => {
    const {
      pulsate,
      rippleX,
      rippleY,
      rippleSize,
      cb
    } = params;
    setRipples(oldRipples => [...oldRipples, /*#__PURE__*/_jsx(TouchRippleRipple, {
      classes: {
        ripple: clsx(classes.ripple, touchRippleClasses.ripple),
        rippleVisible: clsx(classes.rippleVisible, touchRippleClasses.rippleVisible),
        ripplePulsate: clsx(classes.ripplePulsate, touchRippleClasses.ripplePulsate),
        child: clsx(classes.child, touchRippleClasses.child),
        childLeaving: clsx(classes.childLeaving, touchRippleClasses.childLeaving),
        childPulsate: clsx(classes.childPulsate, touchRippleClasses.childPulsate)
      },
      timeout: DURATION,
      pulsate: pulsate,
      rippleX: rippleX,
      rippleY: rippleY,
      rippleSize: rippleSize
    }, nextKey.current)]);
    nextKey.current += 1;
    rippleCallback.current = cb;
  }, [classes]);
  const start = React.useCallback((event = {}, options = {}, cb) => {
    const {
      pulsate = false,
      center = centerProp || options.pulsate,
      fakeElement = false // For test purposes

    } = options;

    if (event?.type === 'mousedown' && ignoringMouseDown.current) {
      ignoringMouseDown.current = false;
      return;
    }

    if (event?.type === 'touchstart') {
      ignoringMouseDown.current = true;
    }

    const element = fakeElement ? null : container.current;
    const rect = element ? element.getBoundingClientRect() : {
      width: 0,
      height: 0,
      left: 0,
      top: 0
    }; // Get the size of the ripple

    let rippleX;
    let rippleY;
    let rippleSize;

    if (center || event === undefined || event.clientX === 0 && event.clientY === 0 || !event.clientX && !event.touches) {
      rippleX = Math.round(rect.width / 2);
      rippleY = Math.round(rect.height / 2);
    } else {
      const {
        clientX,
        clientY
      } = event.touches && event.touches.length > 0 ? event.touches[0] : event;
      rippleX = Math.round(clientX - rect.left);
      rippleY = Math.round(clientY - rect.top);
    }

    if (center) {
      rippleSize = Math.sqrt((2 * rect.width ** 2 + rect.height ** 2) / 3); // For some reason the animation is broken on Mobile Chrome if the size is even.

      if (rippleSize % 2 === 0) {
        rippleSize += 1;
      }
    } else {
      const sizeX = Math.max(Math.abs((element ? element.clientWidth : 0) - rippleX), rippleX) * 2 + 2;
      const sizeY = Math.max(Math.abs((element ? element.clientHeight : 0) - rippleY), rippleY) * 2 + 2;
      rippleSize = Math.sqrt(sizeX ** 2 + sizeY ** 2);
    } // Touche devices


    if (event?.touches) {
      // check that this isn't another touchstart due to multitouch
      // otherwise we will only clear a single timer when unmounting while two
      // are running
      if (startTimerCommit.current === null) {
        // Prepare the ripple effect.
        startTimerCommit.current = () => {
          startCommit({
            pulsate,
            rippleX,
            rippleY,
            rippleSize,
            cb
          });
        }; // Delay the execution of the ripple effect.


        startTimer.current = setTimeout(() => {
          if (startTimerCommit.current) {
            startTimerCommit.current();
            startTimerCommit.current = null;
          }
        }, DELAY_RIPPLE); // We have to make a tradeoff with this value.
      }
    } else {
      startCommit({
        pulsate,
        rippleX,
        rippleY,
        rippleSize,
        cb
      });
    }
  }, [centerProp, startCommit]);
  const pulsate = React.useCallback(() => {
    start({}, {
      pulsate: true
    });
  }, [start]);
  const stop = React.useCallback((event, cb) => {
    clearTimeout(startTimer.current); // The touch interaction occurs too quickly.
    // We still want to show ripple effect.

    if (event?.type === 'touchend' && startTimerCommit.current) {
      startTimerCommit.current();
      startTimerCommit.current = null;
      startTimer.current = setTimeout(() => {
        stop(event, cb);
      });
      return;
    }

    startTimerCommit.current = null;
    setRipples(oldRipples => {
      if (oldRipples.length > 0) {
        return oldRipples.slice(1);
      }

      return oldRipples;
    });
    rippleCallback.current = cb;
  }, []);
  React.useImperativeHandle(ref, () => ({
    pulsate,
    start,
    stop
  }), [pulsate, start, stop]);
  return /*#__PURE__*/_jsx(TouchRippleRoot, _extends({
    className: clsx(touchRippleClasses.root, classes.root, className),
    ref: container
  }, other, {
    children: /*#__PURE__*/_jsx(TransitionGroup, {
      component: null,
      exit: true,
      children: ripples
    })
  }));
});
process.env.NODE_ENV !== "production" ? TouchRipple.propTypes = {
  /**
   * If `true`, the ripple starts at the center of the component
   * rather than at the point of interaction.
   */
  center: PropTypes.bool,

  /**
   * Override or extend the styles applied to the component.
   * See [CSS API](#css) below for more details.
   */
  classes: PropTypes.object,

  /**
   * @ignore
   */
  className: PropTypes.string
} : void 0;
export default TouchRipple;