@carbon/ibm-products/lib/global/js/hooks/useWindowResize.js

Carbon for IBM Products

/**
 * Copyright IBM Corp. 2020, 2025
 *
 * This source code is licensed under the Apache-2.0 license found in the
 * LICENSE file in the root directory of this source tree.
 */

'use strict';

var React = require('react');

const windowExists = typeof window !== `undefined`;
const getWindowSize = () => {
  if (!windowExists) {
    return {
      innerHeight: 0,
      innerWidth: 0,
      outerHeight: 0,
      outerWidth: 0
    };
  }
  const {
    innerHeight,
    innerWidth,
    outerHeight,
    outerWidth
  } = {
    ...window
  };
  return {
    innerHeight,
    innerWidth,
    outerHeight,
    outerWidth
  };
};
const useWindowResize = function (effect, deps) {
  let throttleInterval = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
  const windowSize = React.useRef({});
  const throttleTimeout = React.useRef(null);
  const doGetWindowSize = () => {
    const newVal = {
      previous: windowSize.current,
      current: getWindowSize()
    };

    // call effect
    effect(newVal);
    windowSize.current = newVal.current;
    throttleTimeout.current = null;
  };
  React.useLayoutEffect(() => {
    const handleResize = () => {
      if (throttleInterval) {
        if (throttleTimeout.current === null) {
          throttleTimeout.current = setTimeout(doGetWindowSize, throttleInterval);
        }
      } else {
        doGetWindowSize();
      }
    };
    window.addEventListener('resize', handleResize);
    doGetWindowSize();
    return () => window.removeEventListener('resize', handleResize);
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, deps);
};

exports.useWindowResize = useWindowResize;