very-simple-react-map/dist/components/Map.js

Basic OL3 map with osm layer wrapped in React Component

'use strict';

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

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; }; }();

require('./Map.css');

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

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

var _propTypes2 = _interopRequireDefault(_propTypes);

var _openlayers = require('openlayers');

var _openlayers2 = _interopRequireDefault(_openlayers);

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 Map = function (_Component) {
  _inherits(Map, _Component);

  function Map(props) {
    _classCallCheck(this, Map);

    var _this = _possibleConstructorReturn(this, (Map.__proto__ || Object.getPrototypeOf(Map)).call(this, props));

    var lat = props.lat,
        lng = props.lng,
        zoom = props.zoom;


    _this.view = new _openlayers2.default.View({
      center: _openlayers2.default.proj.fromLonLat([lng, lat]),
      zoom: zoom
    });

    _this.map = new _openlayers2.default.Map({
      layers: [new _openlayers2.default.layer.Tile({
        name: 'default',
        source: new _openlayers2.default.source.OSM()
      })],
      view: _this.view,
      controls: []
    });

    _this.map.on('click', function (evt) {
      var onClick = _this.props.onClick,
          coordinate = _openlayers2.default.proj.transform(evt.coordinate, 'EPSG:3857', 'EPSG:4326');

      onClick ? onClick(coordinate) : console.log(coordinate);
    });
    return _this;
  }

  _createClass(Map, [{
    key: 'componentWillMount',
    value: function componentWillMount() {
      // for testing as package imported to angular6 app - remove this console.log
      // in next version
      console.log('will mount');
    }
  }, {
    key: 'componentWillReceiveProps',
    value: function componentWillReceiveProps(nextProps) {
      // for testing as package imported to angular6 app - remove this console.log
      // in next version
      console.log('receive props');
      var lng = nextProps.lng,
          lat = nextProps.lat;

      this.map.getView().setCenter(_openlayers2.default.proj.fromLonLat([lng, lat]));
    }
  }, {
    key: 'componentDidMount',
    value: function componentDidMount() {
      // for testing as package imported to angular6 app - remove this console.log
      // in next version
      console.log('did mount');
      this.map.setTarget(this.mapContainer);
    }
  }, {
    key: 'componentWillUnmount',
    value: function componentWillUnmount() {
      // for testing as package imported to angular6 app - remove this console.log
      // in next version
      console.log('will unmount');
      this.map.setTarget(null);
    }
  }, {
    key: 'render',
    value: function render() {
      var _this2 = this;

      return _react2.default.createElement(
        'div',
        { className: 'map' },
        _react2.default.createElement('div', { className: 'target', ref: function ref(_ref) {
            _this2.mapContainer = _ref;
          } })
      );
    }
  }]);

  return Map;
}(_react.Component);

Map.propTypes = {
  lat: _propTypes2.default.number,
  lng: _propTypes2.default.number,
  zoom: _propTypes2.default.number,
  onClick: _propTypes2.default.func
};

Map.defaultProps = {
  lat: 0,
  lng: 0,
  zoom: 1
};

exports.default = Map;