react-bpmn/dist/react-bpmn.umd.js

Embed BPMN 2.0 diagrams in your React app

(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory(require('react'), require('bpmn-js/dist/bpmn-navigated-viewer.production.min.js')) :
  typeof define === 'function' && define.amd ? define(['react', 'bpmn-js/dist/bpmn-navigated-viewer.production.min.js'], factory) :
  (global = global || self, global.ReactBpmn = factory(global.React, global.BpmnJS));
}(this, (function (React, BpmnJS) { 'use strict';

  React = React && React.hasOwnProperty('default') ? React['default'] : React;
  BpmnJS = BpmnJS && BpmnJS.hasOwnProperty('default') ? BpmnJS['default'] : BpmnJS;

  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 _typeof2(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof2 = function _typeof2(obj) { return typeof obj; }; } else { _typeof2 = function _typeof2(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof2(obj); }

  function _typeof(obj) {
    if (typeof Symbol === "function" && _typeof2(Symbol.iterator) === "symbol") {
      _typeof = function _typeof(obj) {
        return _typeof2(obj);
      };
    } else {
      _typeof = function _typeof(obj) {
        return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : _typeof2(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 _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);
  }

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

    function ReactBpmn(props) {
      var _this;

      _classCallCheck(this, ReactBpmn);

      _this = _possibleConstructorReturn(this, _getPrototypeOf(ReactBpmn).call(this, props));
      _this.state = {};
      _this.containerRef = React.createRef();
      return _this;
    }

    _createClass(ReactBpmn, [{
      key: "componentDidMount",
      value: function componentDidMount() {
        var _this2 = this;

        var _this$props = this.props,
            url = _this$props.url,
            diagramXML = _this$props.diagramXML;
        var container = this.containerRef.current;
        this.bpmnViewer = new BpmnJS({
          container: container
        });
        this.bpmnViewer.on('import.done', function (event) {
          var error = event.error,
              warnings = event.warnings;

          if (error) {
            return _this2.handleError(error);
          }

          _this2.bpmnViewer.get('canvas').zoom('fit-viewport');

          return _this2.handleShown(warnings);
        });

        if (url) {
          return this.fetchDiagram(url);
        }

        if (diagramXML) {
          return this.displayDiagram(diagramXML);
        }
      }
    }, {
      key: "componentWillUnmount",
      value: function componentWillUnmount() {
        this.bpmnViewer.destroy();
      }
    }, {
      key: "componentDidUpdate",
      value: function componentDidUpdate(prevProps, prevState) {
        var props = this.props,
            state = this.state;

        if (props.url !== prevProps.url) {
          return this.fetchDiagram(props.url);
        }

        var currentXML = props.diagramXML || state.diagramXML;
        var previousXML = prevProps.diagramXML || prevState.diagramXML;

        if (currentXML && currentXML !== previousXML) {
          return this.displayDiagram(currentXML);
        }
      }
    }, {
      key: "displayDiagram",
      value: function displayDiagram(diagramXML) {
        this.bpmnViewer.importXML(diagramXML);
      }
    }, {
      key: "fetchDiagram",
      value: function fetchDiagram(url) {
        var _this3 = this;

        this.handleLoading();
        fetch(url).then(function (response) {
          return response.text();
        }).then(function (text) {
          return _this3.setState({
            diagramXML: text
          });
        })["catch"](function (err) {
          return _this3.handleError(err);
        });
      }
    }, {
      key: "handleLoading",
      value: function handleLoading() {
        var onLoading = this.props.onLoading;

        if (onLoading) {
          onLoading();
        }
      }
    }, {
      key: "handleError",
      value: function handleError(err) {
        var onError = this.props.onError;

        if (onError) {
          onError(err);
        }
      }
    }, {
      key: "handleShown",
      value: function handleShown(warnings) {
        var onShown = this.props.onShown;

        if (onShown) {
          onShown(warnings);
        }
      }
    }, {
      key: "render",
      value: function render() {
        return React.createElement("div", {
          className: "react-bpmn-diagram-container",
          ref: this.containerRef
        });
      }
    }]);

    return ReactBpmn;
  }(React.Component);

  return ReactBpmn;

})));