recharts/lib/chart/PieChart.js

React charts

'use strict';

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _class, _temp2; /**
                     * @fileOverview Pie Chart
                     */

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

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _classnames = require('classnames');

var _classnames2 = _interopRequireDefault(_classnames);

var _Surface = require('../container/Surface');

var _Surface2 = _interopRequireDefault(_Surface);

var _Legend = require('../component/Legend');

var _Legend2 = _interopRequireDefault(_Legend);

var _Tooltip = require('../component/Tooltip');

var _Tooltip2 = _interopRequireDefault(_Tooltip);

var _Pie = require('../polar/Pie');

var _Pie2 = _interopRequireDefault(_Pie);

var _ReactUtils = require('../util/ReactUtils');

var _ReactUtils2 = _interopRequireDefault(_ReactUtils);

var _LodashUtils = require('../util/LodashUtils');

var _LodashUtils2 = _interopRequireDefault(_LodashUtils);

var _PolarUtils = require('../util/PolarUtils');

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

function _objectWithoutProperties(obj, keys) { var target = {}; for (var i in obj) { if (keys.indexOf(i) >= 0) continue; if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; target[i] = obj[i]; } return target; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var PieChart = (_temp2 = _class = function (_Component) {
  _inherits(PieChart, _Component);

  function PieChart() {
    var _Object$getPrototypeO;

    var _temp, _this, _ret;

    _classCallCheck(this, PieChart);

    for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    return _ret = (_temp = (_this = _possibleConstructorReturn(this, (_Object$getPrototypeO = Object.getPrototypeOf(PieChart)).call.apply(_Object$getPrototypeO, [this].concat(args))), _this), _this.state = {
      activeTooltipLabel: '',
      activeTooltipPosition: 'left-bottom',
      activeTooltipCoord: { x: 0, y: 0 },
      isTooltipActive: false
    }, _temp), _possibleConstructorReturn(_this, _ret);
  }

  _createClass(PieChart, [{
    key: 'getComposedData',
    value: function getComposedData(item) {
      var _item$props = item.props;
      var fill = _item$props.fill;
      var stroke = _item$props.stroke;
      var strokeWidth = _item$props.strokeWidth;
      var strokeDasharray = _item$props.strokeDasharray;
      var data = _item$props.data;

      return data.map(function (entry) {
        return _extends({
          fill: fill, stroke: stroke, strokeWidth: strokeWidth, strokeDasharray: strokeDasharray
        }, entry);
      });
    }
  }, {
    key: 'handleMouseEnter',
    value: function handleMouseEnter(el, e) {
      var _this2 = this;

      this.setState({
        isTooltipActive: true
      }, function () {
        if (_this2.props.onMouseEnter) {
          _this2.props.onMouseEnter(el, e);
        }
      });
    }
  }, {
    key: 'handleMouseLeave',
    value: function handleMouseLeave(e) {
      var _this3 = this;

      this.setState({
        isTooltipActive: false
      }, function () {
        if (_this3.props.onMouseEnter) {
          _this3.props.onMouseLeave(e);
        }
      });
    }
    /**
     * Draw legend
     * @param  {Array} items             The instances of Pie
     * @return {ReactElement}            The instance of Legend
     */

  }, {
    key: 'renderLegend',
    value: function renderLegend(items) {
      var _this4 = this;

      var children = this.props.children;

      var legendItem = _ReactUtils2.default.findChildByType(children, _Legend2.default);
      if (!legendItem) {
        return null;
      }

      var _props = this.props;
      var width = _props.width;
      var height = _props.height;

      var legendData = items.reduce(function (result, child) {
        var nameKey = child.props.nameKey;

        var data = _this4.getComposedData(child);

        return result.concat(data.map(function (entry) {
          var name = entry.name;
          var value = entry.value;

          var rest = _objectWithoutProperties(entry, ['name', 'value']);

          return _extends({ value: entry[nameKey], color: entry.fill }, rest);
        }));
      }, []);

      return _react2.default.cloneElement(legendItem, _extends({}, _Legend2.default.getWithHeight(legendItem, width, height), {
        payload: legendData
      }));
    }
  }, {
    key: 'renderTooltip',
    value: function renderTooltip() {
      var children = this.props.children;

      var tooltipItem = _ReactUtils2.default.findChildByType(children, _Tooltip2.default);

      if (!tooltipItem) {
        return;
      }
    }
    /**
     * Draw the main part of bar chart
     * @param  {Array} items    All the instance of Pie
     * @return {ReactComponent} All the instance of Pie
     */

  }, {
    key: 'renderItems',
    value: function renderItems(items) {
      var _this5 = this;

      var _props2 = this.props;
      var width = _props2.width;
      var height = _props2.height;
      var margin = _props2.margin;

      return items.map(function (child, i) {
        var _child$props = child.props;
        var innerRadius = _child$props.innerRadius;
        var outerRadius = _child$props.outerRadius;
        var data = _child$props.data;

        var cx = _LodashUtils2.default.getPercentValue(child.props.cx, width, width / 2);
        var cy = _LodashUtils2.default.getPercentValue(child.props.cy, height, height / 2);
        var maxRadius = (0, _PolarUtils.getMaxRadius)(width, height, cx, cy, margin);

        return _react2.default.cloneElement(child, {
          key: 'recharts-pie-' + i,
          cx: cx,
          cy: cy,
          innerRadius: _LodashUtils2.default.getPercentValue(innerRadius, maxRadius, 0),
          outerRadius: _LodashUtils2.default.getPercentValue(outerRadius, maxRadius, maxRadius * 0.8),
          data: _this5.getComposedData(child),
          onMouseEnter: _this5.handleMouseEnter.bind(_this5),
          onMouseLeave: _this5.handleMouseLeave.bind(_this5)
        });
      });
    }
  }, {
    key: 'render',
    value: function render() {
      if (!_ReactUtils2.default.validateWidthHeight(this)) {
        return null;
      }

      var _props3 = this.props;
      var style = _props3.style;
      var children = _props3.children;
      var className = _props3.className;
      var width = _props3.width;
      var height = _props3.height;

      var items = _ReactUtils2.default.findAllByType(children, _Pie2.default);

      return _react2.default.createElement(
        'div',
        { className: (0, _classnames2.default)('recharts-wrapper', className),
          style: _extends({ position: 'relative', cursor: 'default' }, style)
        },
        _react2.default.createElement(
          _Surface2.default,
          { width: width, height: height },
          this.renderItems(items)
        ),
        this.renderLegend(items),
        this.renderTooltip(items)
      );
    }
  }]);

  return PieChart;
}(_react.Component), _class.displayName = 'PieChart', _class.propTypes = {
  width: _react.PropTypes.number,
  height: _react.PropTypes.number,
  margin: _react.PropTypes.shape({
    top: _react.PropTypes.number,
    right: _react.PropTypes.number,
    bottom: _react.PropTypes.number,
    left: _react.PropTypes.number
  }),
  title: _react.PropTypes.string,
  style: _react.PropTypes.object,
  children: _react.PropTypes.oneOfType([_react.PropTypes.arrayOf(_react.PropTypes.node), _react.PropTypes.node]),
  className: _react.PropTypes.string,
  onMouseEnter: _react.PropTypes.func,
  onMouseLeave: _react.PropTypes.func,
  onClick: _react.PropTypes.func
}, _class.defaultProps = {
  style: {},
  margin: { top: 0, right: 0, bottom: 0, left: 0 }
}, _temp2);
exports.default = PieChart;