google-map-react/lib/utils/lib_geo/lat_lng_bounds.js

isomorphic google map react component, allows render react components on the google map

'use strict';

exports.__esModule = true;

var _lat_lng = require('./lat_lng');

var _lat_lng2 = _interopRequireDefault(_lat_lng);

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"); } }

var LatLngBounds = function () {
  function LatLngBounds(sw, ne) {
    var _this = this;

    _classCallCheck(this, LatLngBounds);

    this.getCenter = function () {
      return new _lat_lng2.default((_this._sw.lat + _this._ne.lat) / 2, (_this._sw.lng + _this._ne.lng) / 2);
    };

    this.getSouthWest = function () {
      return _this._sw;
    };

    this.getNorthEast = function () {
      return _this._ne;
    };

    this.getNorthWest = function () {
      return new _lat_lng2.default(_this.getNorth(), _this.getWest());
    };

    this.getSouthEast = function () {
      return new _lat_lng2.default(_this.getSouth(), _this.getEast());
    };

    this.getWest = function () {
      return _this._sw.lng;
    };

    this.getSouth = function () {
      return _this._sw.lat;
    };

    this.getEast = function () {
      return _this._ne.lng;
    };

    this.getNorth = function () {
      return _this._ne.lat;
    };

    if (!sw) return;

    var latlngs = ne ? [sw, ne] : sw;

    for (var i = 0, len = latlngs.length; i < len; i++) {
      this.extend(latlngs[i]);
    }
  }

  LatLngBounds.prototype.extend = function extend(obj) {
    var sw = this._sw;
    var ne = this._ne;
    var sw2 = void 0;
    var ne2 = void 0;

    if (obj instanceof _lat_lng2.default) {
      sw2 = obj;
      ne2 = obj;
    } else if (obj instanceof LatLngBounds) {
      sw2 = obj._sw;
      ne2 = obj._ne;

      if (!sw2 || !ne2) return this;
    } else {
      return obj ? this.extend(_lat_lng2.default.convert(obj) || LatLngBounds.convert(obj)) : this;
    }

    if (!sw && !ne) {
      this._sw = new _lat_lng2.default(sw2.lat, sw2.lng);
      this._ne = new _lat_lng2.default(ne2.lat, ne2.lng);
    } else {
      sw.lat = Math.min(sw2.lat, sw.lat);
      sw.lng = Math.min(sw2.lng, sw.lng);
      ne.lat = Math.max(ne2.lat, ne.lat);
      ne.lng = Math.max(ne2.lng, ne.lng);
    }

    return this;
  };

  return LatLngBounds;
}();

LatLngBounds.convert = function (a) {
  if (!a || a instanceof LatLngBounds) return a;
  return new LatLngBounds(a);
};

exports.default = LatLngBounds;