fc-react-slider/dist/Slider/helpers/getNearestValue.js

A fully featured slider component made in React

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

exports.default = function (e, props, trackOffset) {
  var value = props.value,
      max = props.max,
      min = props.min,
      step = props.step,
      type = props.type,
      orientation = props.orientation;


  var relativeOffset = e['page' + (0, _utils.capitalize)(_constants2.default[orientation].coordinate)] - trackOffset[_constants2.default[orientation].direction];

  if ((0, _utils.isVertical)(orientation)) relativeOffset = trackOffset.height - relativeOffset;

  var positionOffset = trackOffset[_constants2.default[orientation].dimension] / (max - min);
  var nearestIntegerValue = Math.round(relativeOffset / positionOffset);
  var nearestValue = nearestIntegerValue - nearestIntegerValue % step;
  if (type === 'range') {
    var distancesFromValues = [Math.abs(nearestValue - value[0]), Math.abs(nearestValue - value[1])];
    return distancesFromValues[0] < distancesFromValues[1] ? {
      changed: 'lower',
      value: [nearestValue, value[1]]
    } : {
      changed: 'upper',
      value: [value[0], nearestValue]
    };
  } else {
    return { value: nearestValue };
  }
};

var _constants = require('../constants');

var _constants2 = _interopRequireDefault(_constants);

var _utils = require('../utils');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }