@data-ui/xy-chart/lib/utils/collectVoronoiData.js

A package of charts with standard x- and y- axes. https://williaster.github.io/data-ui

"use strict";

exports.__esModule = true;
exports.default = collectVoronoiData;

var _react = require("react");

var _AreaDifferenceSeries = _interopRequireDefault(require("../series/AreaDifferenceSeries"));

var _chartUtils = require("./chartUtils");

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

// this function collects all data from child series to defines a voronoi overlay
// because x,y coordinates are required to define a voronoi, it filters any points
// with undefined x or y values
function collectVoronoiData(_ref) {
  var children = _ref.children,
      getX = _ref.getX,
      getY = _ref.getY;
  return _react.Children.toArray(children).reduce(function (result, Child) {
    var name = (0, _chartUtils.componentName)(Child);

    if ((0, _chartUtils.isSeries)(name) && !Child.props.disableMouseEvents) {
      if (name === _AreaDifferenceSeries.default.displayName) {
        return result.concat(collectVoronoiData({
          children: Child.props.children,
          getX: getX,
          getY: getY
        }));
      }

      return result.concat(Child.props.data.filter(function (d) {
        return (0, _chartUtils.isDefined)(getX(d)) && (0, _chartUtils.isDefined)(getY(d));
      }));
    }

    return result;
  }, []);
}