@base-ui-components/react/esm/slider/indicator/useSliderIndicator.js

Base UI is a library of headless ('unstyled') React components and low-level hooks. You gain complete control over your app's CSS and accessibility features.

'use client';

import * as React from 'react';
import { mergeReactProps } from '../../utils/mergeReactProps.js';
function getRangeStyles(orientation, offset, leap) {
  if (orientation === 'vertical') {
    return {
      bottom: `${offset}%`,
      height: `${leap}%`,
      width: 'inherit'
    };
  }
  return {
    insetInlineStart: `${offset}%`,
    width: `${leap}%`,
    height: 'inherit'
  };
}

/**
 */
export function useSliderIndicator(parameters) {
  const {
    orientation,
    percentageValues
  } = parameters;
  let internalStyles;
  if (percentageValues.length > 1) {
    const trackOffset = percentageValues[0];
    const trackLeap = percentageValues[percentageValues.length - 1] - trackOffset;
    internalStyles = getRangeStyles(orientation, trackOffset, trackLeap);
  } else if (orientation === 'vertical') {
    internalStyles = {
      bottom: 0,
      height: `${percentageValues[0]}%`,
      width: 'inherit'
    };
  } else {
    internalStyles = {
      insetInlineStart: 0,
      width: `${percentageValues[0]}%`,
      height: 'inherit'
    };
  }
  const getRootProps = React.useCallback((externalProps = {}) => {
    return mergeReactProps(externalProps, {
      style: internalStyles
    });
  }, [internalStyles]);
  return React.useMemo(() => ({
    getRootProps
  }), [getRootProps]);
}