@edtr-io/plugin-text/dist/plugins/katex/math.component.js

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.Math = void 0;

var _katex = _interopRequireDefault(require("katex"));

var React = _interopRequireWildcard(require("react"));

require("katex/dist/katex.min.css");

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } } newObj.default = obj; return newObj; } }

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

function _typeof(obj) { 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 _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }

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 _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 _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }

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 _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

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 createMathComponent = function createMathComponent(Component, _ref) {
  var displayMode = _ref.displayMode;

  var MathComponent =
  /*#__PURE__*/
  function (_React$Component) {
    _inherits(MathComponent, _React$Component);

    function MathComponent() {
      var _getPrototypeOf2;

      var _this;

      _classCallCheck(this, MathComponent);

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

      _this = _possibleConstructorReturn(this, (_getPrototypeOf2 = _getPrototypeOf(MathComponent)).call.apply(_getPrototypeOf2, [this].concat(args)));

      _defineProperty(_assertThisInitialized(_this), "state", {
        html: ''
      });

      return _this;
    }

    _createClass(MathComponent, [{
      key: "render",
      value: function render() {
        var _this$state = this.state,
            error = _this$state.error,
            html = _this$state.html;
        var renderError = this.props.renderError;

        if (error) {
          return renderError ? renderError(error) : React.createElement(Component, {
            html: "".concat(error.message)
          });
        }

        return React.createElement(Component, {
          html: html
        });
      }
    }, {
      key: "shouldComponentUpdate",
      value: function shouldComponentUpdate(nextProps) {
        return nextProps.math !== this.props.math;
      }
    }], [{
      key: "getDerivedStateFromProps",
      value: function getDerivedStateFromProps(props) {
        try {
          var errorColor = props.errorColor,
              renderError = props.renderError;

          var html = _katex.default.renderToString(props.math, {
            displayMode: displayMode,
            errorColor: errorColor,
            throwOnError: !!renderError
          });

          return {
            html: html,
            error: undefined
          };
        } catch (error) {
          if (error instanceof _katex.default.ParseError) {
            return {
              error: error
            };
          }

          throw error;
        }
      }
    }]);

    return MathComponent;
  }(React.Component);

  return MathComponent;
};

var IBlockMath = function IBlockMath(_ref2) {
  var html = _ref2.html;
  return React.createElement("span", {
    style: {
      display: 'block'
    },
    dangerouslySetInnerHTML: {
      __html: html
    }
  });
};

var BlockMath = createMathComponent(IBlockMath, {
  displayMode: true
});

var IInlineMath = function IInlineMath(_ref3) {
  var html = _ref3.html;
  return React.createElement("span", {
    dangerouslySetInnerHTML: {
      __html: html
    }
  });
};

var InlineMath = createMathComponent(IInlineMath, {
  displayMode: false
});

var handleError = function handleError(formula, error, inline, oldErrorPosition) {
  var errorStyle = {
    color: '#CC0000'
  };

  if (error.position === oldErrorPosition) {
    return React.createElement("span", {
      style: errorStyle
    }, formula);
  }

  var beforeError = formula.substring(0, error.position);
  var afterError = formula.substring(error.position);
  return React.createElement("span", {
    style: {
      display: 'inline-block'
    }
  }, React.createElement(Math, {
    formula: beforeError,
    inline: inline,
    oldErrorPosition: error.position
  }), React.createElement("span", {
    style: errorStyle
  }, afterError), React.createElement("span", {
    style: _objectSpread({}, errorStyle, {
      display: 'block'
    })
  }, React.createElement("b", null, error.name, ": ", error.message)));
};

var Math =
/*#__PURE__*/
function (_React$Component2) {
  _inherits(Math, _React$Component2);

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

    return _possibleConstructorReturn(this, _getPrototypeOf(Math).apply(this, arguments));
  }

  _createClass(Math, [{
    key: "render",
    value: function render() {
      var _this$props = this.props,
          inline = _this$props.inline,
          formula = _this$props.formula,
          oldErrorPosition = _this$props.oldErrorPosition;

      if (!formula) {
        return null;
      }

      var Component = inline ? InlineMath : BlockMath;
      return React.createElement(Component, {
        math: formula,
        renderError: function renderError(error) {
          return handleError(formula, error, !inline, oldErrorPosition);
        }
      });
    }
  }]);

  return Math;
}(React.Component);

exports.Math = Math;
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