react-sigma/es/NeoCypher.js

Lightweight but powerful library for drawing network graphs built on top of SigmaJS

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 _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 _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 _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 _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }

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

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }

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; }

import React from 'react';
import '../sigma/parsers.json.js';
import '../sigma/neo4j.cypher';
import NeoGraphItemsProducers from './NeoGraphItemsProducers';
import { embedProps } from './tools';
;

/**

NeoCypher component, interface for neo4j.cypher sigma plugin. Can be used within Sigma component.
Can be composed with other plugins: on load it mounts all child components (e.g. other sigma plugins).
Child's componentWillMount should be used to enable plugins on loaded graph.

 @param {string} url    Neo4j instance REST API URL
 @param {string} user    Neo4j instance REST API user
 @param {string} password    Neo4j instance REST API password
 @param {string} query    Neo4j cypher query
 @param {NeoGraphItemsProducers} producers   Optional transformer for creating Sigma nodes and edges,
									instance compatible with NeoGraphItemsProducers
 @param {Function} onGraphLoaded        Optional callback for graph update

[see sigma plugin page for more details](https://github.com/jacomyal/sigma.js/tree/master/plugins/sigma.neo4j.cypher)

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

  var _super = _createSuper(NeoCypher);

  function NeoCypher(props) {
    var _this;

    _classCallCheck(this, NeoCypher);

    if (!props.producers) {
      props.producers = new NeoGraphItemsProducers();
    }

    _this = _super.call(this, props);

    _defineProperty(_assertThisInitialized(_this), "onLoad", function () {
      _this.setState({
        loaded: true
      });

      if (_this.props.sigma) _this.props.sigma.refresh();
      if (_this.props.onGraphLoaded) return _this.props.onGraphLoaded();
    });

    _this.state = {
      loaded: false
    };
    return _this;
  }

  _createClass(NeoCypher, [{
    key: "componentDidMount",
    value: function componentDidMount() {
      this._runQuery(this.props.query);
    }
  }, {
    key: "componentWillUpdate",
    value: function componentWillUpdate(props) {
      // suppose url, user or password won't change for sigma instance, as well as sigma instance itself
      if (this.props.query !== props.query) {
        this.setState({
          loaded: false
        });

        this._runQuery(props.query);
      }
    }
  }, {
    key: "render",
    value: function render() {
      if (!this.state.loaded) return null;
      return /*#__PURE__*/React.createElement("div", null, embedProps(this.props.children, {
        sigma: this.props.sigma
      }));
    }
  }, {
    key: "_runQuery",
    value: function _runQuery(query) {
      // TODO: add exception handling capability to Sigma Neo4j plugin
      sigma.neo4j.cypher({
        url: this.props.url,
        user: this.props.user,
        password: this.props.password
      }, query, this.props.sigma, this.onLoad, this.props.producers);
    }
  }]);

  return NeoCypher;
}(React.Component);

_defineProperty(NeoCypher, "propTypes", {
  url: PropTypes.string.isRequired,
  user: PropTypes.string.isRequired,
  password: PropTypes.string.isRequired,
  query: PropTypes.string.isRequired,
  producers: PropTypes.shape({
    node: PropTypes.func.isRequired,
    edge: PropTypes.func.isRequired
  }),
  onGraphLoaded: PropTypes.func,
  children: PropTypes.any,
  sigma: function (_sigma) {
    function sigma() {
      return _sigma.apply(this, arguments);
    }

    sigma.toString = function () {
      return _sigma.toString();
    };

    return sigma;
  }(function () {
    return (typeof sigma === "function" ? PropTypes.instanceOf(sigma) : PropTypes.any).apply(this, arguments);
  })
});

export default NeoCypher;
import PropTypes from "prop-types";