rc-slider/es/common/Marks.js

Slider UI component for React

import _extends from 'babel-runtime/helpers/extends';
import _defineProperty from 'babel-runtime/helpers/defineProperty';
import React from 'react';
import PropTypes from 'prop-types';
import classNames from 'classnames';

var Marks = function Marks(_ref) {
  var className = _ref.className,
      vertical = _ref.vertical,
      marks = _ref.marks,
      included = _ref.included,
      upperBound = _ref.upperBound,
      lowerBound = _ref.lowerBound,
      max = _ref.max,
      min = _ref.min,
      onClickLabel = _ref.onClickLabel;

  var marksKeys = Object.keys(marks);
  var marksCount = marksKeys.length;
  var unit = marksCount > 1 ? 100 / (marksCount - 1) : 100;
  var markWidth = unit * 0.9;

  var range = max - min;
  var elements = marksKeys.map(parseFloat).sort(function (a, b) {
    return a - b;
  }).map(function (point) {
    var _classNames;

    var markPoint = marks[point];
    var markPointIsObject = typeof markPoint === 'object' && !React.isValidElement(markPoint);
    var markLabel = markPointIsObject ? markPoint.label : markPoint;
    if (!markLabel && markLabel !== 0) {
      return null;
    }

    var isActive = !included && point === upperBound || included && point <= upperBound && point >= lowerBound;
    var markClassName = classNames((_classNames = {}, _defineProperty(_classNames, className + '-text', true), _defineProperty(_classNames, className + '-text-active', isActive), _classNames));

    var bottomStyle = {
      marginBottom: '-50%',
      bottom: (point - min) / range * 100 + '%'
    };

    var leftStyle = {
      width: markWidth + '%',
      marginLeft: -markWidth / 2 + '%',
      left: (point - min) / range * 100 + '%'
    };

    var style = vertical ? bottomStyle : leftStyle;
    var markStyle = markPointIsObject ? _extends({}, style, markPoint.style) : style;
    return React.createElement(
      'span',
      {
        className: markClassName,
        style: markStyle,
        key: point,
        onMouseDown: function onMouseDown(e) {
          return onClickLabel(e, point);
        },
        onTouchStart: function onTouchStart(e) {
          return onClickLabel(e, point);
        }
      },
      markLabel
    );
  });

  return React.createElement(
    'div',
    { className: className },
    elements
  );
};

Marks.propTypes = {
  className: PropTypes.string,
  vertical: PropTypes.bool,
  marks: PropTypes.object,
  included: PropTypes.bool,
  upperBound: PropTypes.number,
  lowerBound: PropTypes.number,
  max: PropTypes.number,
  min: PropTypes.number,
  onClickLabel: PropTypes.func
};

export default Marks;