react-bulma-chartjs/lib/index.js

Chartjs component is based on chart.js for React

'use strict';

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

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 _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _lodash = require('lodash');

var _chart = require('chart.js');

var _chart2 = _interopRequireDefault(_chart);

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

require('../src/chat.css');

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

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 types = ['line', 'bar', 'radar', 'polarArea', 'pie', 'doughnut', 'bubble', 'scatter'];

var index = function (_React$Component) {
  _inherits(index, _React$Component);

  function index() {
    _classCallCheck(this, index);

    return _possibleConstructorReturn(this, (index.__proto__ || Object.getPrototypeOf(index)).apply(this, arguments));
  }

  _createClass(index, [{
    key: 'componentWillMount',
    value: function componentWillMount() {
      this.chart = null;
    }
  }, {
    key: 'componentDidMount',
    value: function componentDidMount() {
      this.onRenderChart();
    }
  }, {
    key: 'shouldComponentUpdate',
    value: function shouldComponentUpdate(nextProps, nextState) {
      var _props = this.props,
          type = _props.type,
          data = _props.data,
          options = _props.options,
          plugins = _props.plugins,
          height = _props.height,
          width = _props.width;

      if (height !== nextProps.height || width !== nextProps.width || type !== nextProps.type || !(0, _lodash.isEqual)(nextProps.data, data) || !(0, _lodash.isEqual)(nextProps.plugins, plugins) || !(0, _lodash.isEqual)(nextProps.options, options)) {
        return true;
      } else {
        return false;
      }
    }
  }, {
    key: 'componentDidUpdate',
    value: function componentDidUpdate(prevProps) {
      if (!(0, _lodash.isEqual)(prevProps.data, this.props.data)) {
        var transform = function transform(datasets, nextDatasets) {
          datasets.splice(nextDatasets.length);
          nextDatasets.forEach(function (vo, key) {
            if (datasets[key] && datasets[key] instanceof Object) {
              datasets[key] = _extends({}, datasets[key], nextDatasets[key]);
            } else {
              datasets[key] = nextDatasets[key];
            }
          });
          return datasets;
        };
        this.chart.config.data = _extends({}, this.chart.config.data, {
          labels: transform(this.chart.config.data.labels, this.props.data.labels),
          datasets: transform(this.chart.config.data.datasets, this.props.data.datasets)
        });
        this.chart.update();
      } else {
        this.onRenderChart();
      }
    }
  }, {
    key: 'componentWillUnmount',
    value: function componentWillUnmount() {
      this.chart.destroy();
    }
  }, {
    key: 'onRenderChart',
    value: function onRenderChart() {
      if (this.chart) this.chart.destroy();
      if (!types.includes(this.props.type)) return;
      this.chart = new _chart2.default(this.refs.canvas.getContext('2d'), _extends({}, this.props));
    }
  }, {
    key: 'render',
    value: function render() {
      return _react2.default.createElement('canvas', {
        ref: 'canvas',
        className: 'chartjs',
        width: this.props.width,
        height: this.props.height
      });
    }
  }]);

  return index;
}(_react2.default.Component);

index.propTypes = {
  data: _propTypes2.default.object.isRequired,
  height: _propTypes2.default.number,
  width: _propTypes2.default.number,
  options: _propTypes2.default.object,
  plugins: _propTypes2.default.arrayOf(_propTypes2.default.object, _propTypes2.default.func),
  type: _propTypes2.default.oneOf(types)
};

index.defaultProps = {
  type: 'doughnut',
  height: 300,
  width: 300,
  data: {},
  options: {},
  plugins: [{}]
};

exports.default = index;