content: import React, { Component } from 'react';
  import { classNames } from 'primereact/utils';
  
  function _classCallCheck(instance, Constructor) {
    if (!(instance instanceof Constructor)) {
      throw new TypeError("Cannot call a class as a 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);
    }
  }
  
  function _createClass(Constructor, protoProps, staticProps) {
    if (protoProps) _defineProperties(Constructor.prototype, protoProps);
    if (staticProps) _defineProperties(Constructor, staticProps);
    return Constructor;
  }
  
  function _setPrototypeOf(o, p) {
    _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
      o.__proto__ = p;
      return o;
    };
  
    return _setPrototypeOf(o, p);
  }
  
  function _inherits(subClass, superClass) {
    if (typeof superClass !== "function" && superClass !== null) {
      throw new TypeError("Super expression must either be null or a function");
    }
  
    subClass.prototype = Object.create(superClass && superClass.prototype, {
      constructor: {
        value: subClass,
        writable: true,
        configurable: true
      }
    });
    if (superClass) _setPrototypeOf(subClass, superClass);
  }
  
  function _typeof(obj) {
    "@babel/helpers - typeof";
  
    if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
      _typeof = function _typeof(obj) {
        return typeof obj;
      };
    } else {
      _typeof = function _typeof(obj) {
        return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
      };
    }
  
    return _typeof(obj);
  }
  
  function _assertThisInitialized(self) {
    if (self === void 0) {
      throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
    }
  
    return self;
  }
  
  function _possibleConstructorReturn(self, call) {
    if (call && (_typeof(call) === "object" || typeof call === "function")) {
      return call;
    }
  
    return _assertThisInitialized(self);
  }
  
  function _getPrototypeOf(o) {
    _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
      return o.__proto__ || Object.getPrototypeOf(o);
    };
    return _getPrototypeOf(o);
  }
  
  function _defineProperty(obj, key, value) {
    if (key in obj) {
      Object.defineProperty(obj, key, {
        value: value,
        enumerable: true,
        configurable: true,
        writable: true
      });
    } else {
      obj[key] = value;
    }
  
    return obj;
  }
  
  var propTypes = {exports: {}};
  
  /**
   * Copyright (c) 2013-present, Facebook, Inc.
   *
   * This source code is licensed under the MIT license found in the
   * LICENSE file in the root directory of this source tree.
   */
  
  var ReactPropTypesSecret$1 = 'SECRET_DO_NOT_PASS_THIS_OR_YOU_WILL_BE_FIRED';
  
  var ReactPropTypesSecret_1 = ReactPropTypesSecret$1;
  
  /**
   * Copyright (c) 2013-present, Facebook, Inc.
   *
   * This source code is licensed under the MIT license found in the
   * LICENSE file in the root directory of this source tree.
   */
  
  var ReactPropTypesSecret = ReactPropTypesSecret_1;
  
  function emptyFunction() {}
  function emptyFunctionWithReset() {}
  emptyFunctionWithReset.resetWarningCache = emptyFunction;
  
  var factoryWithThrowingShims = function() {
    function shim(props, propName, componentName, location, propFullName, secret) {
      if (secret === ReactPropTypesSecret) {
        // It is still safe when called from React.
        return;
      }
      var err = new Error(
        'Calling PropTypes validators directly is not supported by the `prop-types` package. ' +
        'Use PropTypes.checkPropTypes() to call them. ' +
        'Read more at http://fb.me/use-check-prop-types'
      );
      err.name = 'Invariant Violation';
      throw err;
    }  shim.isRequired = shim;
    function getShim() {
      return shim;
    }  // Important!
    // Keep this list in sync with production version in `./factoryWithTypeCheckers.js`.
    var ReactPropTypes = {
      array: shim,
      bool: shim,
      func: shim,
      number: shim,
      object: shim,
      string: shim,
      symbol: shim,
  
      any: shim,
      arrayOf: getShim,
      element: shim,
      elementType: shim,
      instanceOf: getShim,
      node: shim,
      objectOf: getShim,
      oneOf: getShim,
      oneOfType: getShim,
      shape: getShim,
      exact: getShim,
  
      checkPropTypes: emptyFunctionWithReset,
      resetWarningCache: emptyFunction
    };
  
    ReactPropTypes.PropTypes = ReactPropTypes;
  
    return ReactPropTypes;
  };
  
  /**
   * Copyright (c) 2013-present, Facebook, Inc.
   *
   * This source code is licensed under the MIT license found in the
   * LICENSE file in the root directory of this source tree.
   */
  
  {
    // By explicitly using `prop-types` you are opting into new production behavior.
    // http://fb.me/prop-types-in-prod
    propTypes.exports = factoryWithThrowingShims();
  }
  
  var PropTypes = propTypes.exports;
  
  function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }
  
  function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }
  var Chart = /*#__PURE__*/function (_Component) {
    _inherits(Chart, _Component);
  
    var _super = _createSuper(Chart);
  
    function Chart() {
      _classCallCheck(this, Chart);
  
      return _super.apply(this, arguments);
    }
  
    _createClass(Chart, [{
      key: "initChart",
      value: function initChart() {
        var _this = this;
  
        import('chart.js/auto').then(function (module) {
          if (_this.chart) {
            _this.chart.destroy();
  
            _this.chart = null;
          }
  
          if (module && module.default) {
            _this.chart = new module.default(_this.canvas, {
              type: _this.props.type,
              data: _this.props.data,
              options: _this.props.options
            });
          }
        });
      }
    }, {
      key: "getCanvas",
      value: function getCanvas() {
        return this.canvas;
      }
    }, {
      key: "getChart",
      value: function getChart() {
        return this.chart;
      }
    }, {
      key: "getBase64Image",
      value: function getBase64Image() {
        return this.chart.toBase64Image();
      }
    }, {
      key: "generateLegend",
      value: function generateLegend() {
        if (this.chart) {
          this.chart.generateLegend();
        }
      }
    }, {
      key: "refresh",
      value: function refresh() {
        if (this.chart) {
          this.chart.update();
        }
      }
    }, {
      key: "reinit",
      value: function reinit() {
        this.initChart();
      }
    }, {
      key: "shouldComponentUpdate",
      value: function shouldComponentUpdate(nextProps) {
        if (nextProps.data === this.props.data && nextProps.options === this.props.options && nextProps.type === this.props.type) {
          return false;
        }
  
        return true;
      }
    }, {
      key: "componentDidMount",
      value: function componentDidMount() {
        this.initChart();
      }
    }, {
      key: "componentDidUpdate",
      value: function componentDidUpdate() {
        this.reinit();
      }
    }, {
      key: "componentWillUnmount",
      value: function componentWillUnmount() {
        if (this.chart) {
          this.chart.destroy();
          this.chart = null;
        }
      }
    }, {
      key: "render",
      value: function render() {
        var _this2 = this;
  
        var className = classNames('p-chart', this.props.className),
            style = Object.assign({
          width: this.props.width,
          height: this.props.height
        }, this.props.style);
        return /*#__PURE__*/React.createElement("div", {
          id: this.props.id,
          style: style,
          className: className
        }, /*#__PURE__*/React.createElement("canvas", {
          ref: function ref(el) {
            _this2.canvas = el;
          },
          width: this.props.width,
          height: this.props.height
        }));
      }
    }]);
  
    return Chart;
  }(Component);
  
  _defineProperty(Chart, "defaultProps", {
    id: null,
    type: null,
    data: null,
    options: null,
    width: null,
    height: null,
    style: null,
    className: null
  });
  
  _defineProperty(Chart, "propTypes", {
    id: PropTypes.string,
    type: PropTypes.string,
    data: PropTypes.object,
    options: PropTypes.object,
    width: PropTypes.string,
    height: PropTypes.string,
    style: PropTypes.object,
    className: PropTypes.string
  });
  
  export { Chart };
  