Control.Geocoder.js

/* @preserve
 * Leaflet Control Geocoder 1.13.0
 * https://github.com/perliedman/leaflet-control-geocoder
 *
 * Copyright (c) 2012 sa3m (https://github.com/sa3m)
 * Copyright (c) 2018 Per Liedman
 * All rights reserved.
 */

this.L = this.L || {};
this.L.Control = this.L.Control || {};
this.L.Control.Geocoder = (function (L) {
  'use strict';

  L = L && Object.prototype.hasOwnProperty.call(L, 'default') ? L['default'] : L;

  var lastCallbackId = 0;

  // Adapted from handlebars.js
  // https://github.com/wycats/handlebars.js/
  var badChars = /[&<>"'`]/g;
  var possible = /[&<>"'`]/;
  var escape = {
    '&': '&amp;',
    '<': '&lt;',
    '>': '&gt;',
    '"': '&quot;',
    "'": '&#x27;',
    '`': '&#x60;'
  };

  function escapeChar(chr) {
    return escape[chr];
  }

  function htmlEscape(string) {
    if (string == null) {
      return '';
    } else if (!string) {
      return string + '';
    }

    // Force a string conversion as this will be done by the append regardless and
    // the regex test will do this transparently behind the scenes, causing issues if
    // an object's to string has escaped characters in it.
    string = '' + string;

    if (!possible.test(string)) {
      return string;
    }
    return string.replace(badChars, escapeChar);
  }

  function jsonp(url, params, callback, context, jsonpParam) {
    var callbackId = '_l_geocoder_' + lastCallbackId++;
    params[jsonpParam || 'callback'] = callbackId;
    window[callbackId] = L.Util.bind(callback, context);
    var script = document.createElement('script');
    script.type = 'text/javascript';
    script.src = url + getParamString(params);
    script.id = callbackId;
    document.getElementsByTagName('head')[0].appendChild(script);
  }

  function getJSON(url, params, callback) {
    var xmlHttp = new XMLHttpRequest();
    xmlHttp.onreadystatechange = function () {
      if (xmlHttp.readyState !== 4) {
        return;
      }
      var message;
      if (xmlHttp.status !== 200 && xmlHttp.status !== 304) {
        message = '';
      } else if (typeof xmlHttp.response === 'string') {
        // IE doesn't parse JSON responses even with responseType: 'json'.
        try {
          message = JSON.parse(xmlHttp.response);
        } catch (e) {
          // Not a JSON response
          message = xmlHttp.response;
        }
      } else {
        message = xmlHttp.response;
      }
      callback(message);
    };
    xmlHttp.open('GET', url + getParamString(params), true);
    xmlHttp.responseType = 'json';
    xmlHttp.setRequestHeader('Accept', 'application/json');
    xmlHttp.send(null);
  }

  function template(str, data) {
    return str.replace(/\{ *([\w_]+) *\}/g, function (str, key) {
      var value = data[key];
      if (value === undefined) {
        value = '';
      } else if (typeof value === 'function') {
        value = value(data);
      }
      return htmlEscape(value);
    });
  }

  function getParamString(obj, existingUrl, uppercase) {
    var params = [];
    for (var i in obj) {
      var key = encodeURIComponent(uppercase ? i.toUpperCase() : i);
      var value = obj[i];
      if (!L.Util.isArray(value)) {
        params.push(key + '=' + encodeURIComponent(value));
      } else {
        for (var j = 0; j < value.length; j++) {
          params.push(key + '=' + encodeURIComponent(value[j]));
        }
      }
    }
    return (!existingUrl || existingUrl.indexOf('?') === -1 ? '?' : '&') + params.join('&');
  }

  var ArcGis = L.Class.extend({
    options: {
      service_url: 'https://geocode.arcgis.com/arcgis/rest/services/World/GeocodeServer'
    },

    initialize: function (accessToken, options) {
      L.setOptions(this, options);
      this._accessToken = accessToken;
    },

    geocode: function (query, cb, context) {
      var params = {
        SingleLine: query,
        outFields: 'Addr_Type',
        forStorage: false,
        maxLocations: 10,
        f: 'json'
      };

      if (this._key && this._key.length) {
        params.token = this._key;
      }

      getJSON(
        this.options.service_url + '/findAddressCandidates',
        L.extend(params, this.options.geocodingQueryParams),
        function (data) {
          var results = [],
            loc,
            latLng,
            latLngBounds;

          if (data.candidates && data.candidates.length) {
            for (var i = 0; i <= data.candidates.length - 1; i++) {
              loc = data.candidates[i];
              latLng = L.latLng(loc.location.y, loc.location.x);
              latLngBounds = L.latLngBounds(
                L.latLng(loc.extent.ymax, loc.extent.xmax),
                L.latLng(loc.extent.ymin, loc.extent.xmin)
              );
              results[i] = {
                name: loc.address,
                bbox: latLngBounds,
                center: latLng
              };
            }
          }

          cb.call(context, results);
        }
      );
    },

    suggest: function (query, cb, context) {
      return this.geocode(query, cb, context);
    },

    reverse: function (location, scale, cb, context) {
      var params = {
        location: encodeURIComponent(location.lng) + ',' + encodeURIComponent(location.lat),
        distance: 100,
        f: 'json'
      };

      getJSON(this.options.service_url + '/reverseGeocode', params, function (data) {
        var result = [],
          loc;

        if (data && !data.error) {
          loc = L.latLng(data.location.y, data.location.x);
          result.push({
            name: data.address.Match_addr,
            center: loc,
            bounds: L.latLngBounds(loc, loc)
          });
        }

        cb.call(context, result);
      });
    }
  });

  function arcgis(accessToken, options) {
    return new ArcGis(accessToken, options);
  }

  var Bing = L.Class.extend({
    initialize: function (key) {
      this.key = key;
    },

    geocode: function (query, cb, context) {
      jsonp(
        'https://dev.virtualearth.net/REST/v1/Locations',
        {
          query: query,
          key: this.key
        },
        function (data) {
          var results = [];
          if (data.resourceSets.length > 0) {
            for (var i = data.resourceSets[0].resources.length - 1; i >= 0; i--) {
              var resource = data.resourceSets[0].resources[i],
                bbox = resource.bbox;
              results[i] = {
                name: resource.name,
                bbox: L.latLngBounds([bbox[0], bbox[1]], [bbox[2], bbox[3]]),
                center: L.latLng(resource.point.coordinates)
              };
            }
          }
          cb.call(context, results);
        },
        this,
        'jsonp'
      );
    },

    reverse: function (location, scale, cb, context) {
      jsonp(
        '//dev.virtualearth.net/REST/v1/Locations/' + location.lat + ',' + location.lng,
        {
          key: this.key
        },
        function (data) {
          var results = [];
          for (var i = data.resourceSets[0].resources.length - 1; i >= 0; i--) {
            var resource = data.resourceSets[0].resources[i],
              bbox = resource.bbox;
            results[i] = {
              name: resource.name,
              bbox: L.latLngBounds([bbox[0], bbox[1]], [bbox[2], bbox[3]]),
              center: L.latLng(resource.point.coordinates)
            };
          }
          cb.call(context, results);
        },
        this,
        'jsonp'
      );
    }
  });

  function bing(key) {
    return new Bing(key);
  }

  var Google = L.Class.extend({
    options: {
      serviceUrl: 'https://maps.googleapis.com/maps/api/geocode/json',
      geocodingQueryParams: {},
      reverseQueryParams: {}
    },

    initialize: function (key, options) {
      this._key = key;
      L.setOptions(this, options);
      // Backwards compatibility
      this.options.serviceUrl = this.options.service_url || this.options.serviceUrl;
    },

    geocode: function (query, cb, context) {
      var params = {
        address: query
      };

      if (this._key && this._key.length) {
        params.key = this._key;
      }

      params = L.Util.extend(params, this.options.geocodingQueryParams);

      getJSON(this.options.serviceUrl, params, function (data) {
        var results = [],
          loc,
          latLng,
          latLngBounds;
        if (data.results && data.results.length) {
          for (var i = 0; i <= data.results.length - 1; i++) {
            loc = data.results[i];
            latLng = L.latLng(loc.geometry.location);
            latLngBounds = L.latLngBounds(
              L.latLng(loc.geometry.viewport.northeast),
              L.latLng(loc.geometry.viewport.southwest)
            );
            results[i] = {
              name: loc.formatted_address,
              bbox: latLngBounds,
              center: latLng,
              properties: loc.address_components
            };
          }
        }

        cb.call(context, results);
      });
    },

    reverse: function (location, scale, cb, context) {
      var params = {
        latlng: encodeURIComponent(location.lat) + ',' + encodeURIComponent(location.lng)
      };
      params = L.Util.extend(params, this.options.reverseQueryParams);
      if (this._key && this._key.length) {
        params.key = this._key;
      }

      getJSON(this.options.serviceUrl, params, function (data) {
        var results = [],
          loc,
          latLng,
          latLngBounds;
        if (data.results && data.results.length) {
          for (var i = 0; i <= data.results.length - 1; i++) {
            loc = data.results[i];
            latLng = L.latLng(loc.geometry.location);
            latLngBounds = L.latLngBounds(
              L.latLng(loc.geometry.viewport.northeast),
              L.latLng(loc.geometry.viewport.southwest)
            );
            results[i] = {
              name: loc.formatted_address,
              bbox: latLngBounds,
              center: latLng,
              properties: loc.address_components
            };
          }
        }

        cb.call(context, results);
      });
    }
  });

  function google(key, options) {
    return new Google(key, options);
  }

  var HERE = L.Class.extend({
    options: {
      geocodeUrl: 'https://geocoder.api.here.com/6.2/geocode.json',
      reverseGeocodeUrl: 'https://reverse.geocoder.api.here.com/6.2/reversegeocode.json',
      app_id: '<insert your app_id here>',
      app_code: '<insert your app_code here>',
      geocodingQueryParams: {},
      reverseQueryParams: {},
      reverseGeocodeProxRadius: null
    },
    initialize: function (options) {
      L.setOptions(this, options);
    },
    geocode: function (query, cb, context) {
      var params = {
        searchtext: query,
        gen: 9,
        app_id: this.options.app_id,
        app_code: this.options.app_code,
        jsonattributes: 1
      };
      params = L.Util.extend(params, this.options.geocodingQueryParams);
      this.getJSON(this.options.geocodeUrl, params, cb, context);
    },
    reverse: function (location, scale, cb, context) {
      var _proxRadius = this.options.reverseGeocodeProxRadius
        ? this.options.reverseGeocodeProxRadius
        : null;
      var proxRadius = _proxRadius ? ',' + encodeURIComponent(_proxRadius) : '';
      var params = {
        prox: encodeURIComponent(location.lat) + ',' + encodeURIComponent(location.lng) + proxRadius,
        mode: 'retrieveAddresses',
        app_id: this.options.app_id,
        app_code: this.options.app_code,
        gen: 9,
        jsonattributes: 1
      };
      params = L.Util.extend(params, this.options.reverseQueryParams);
      this.getJSON(this.options.reverseGeocodeUrl, params, cb, context);
    },
    getJSON: function (url, params, cb, context) {
      getJSON(url, params, function (data) {
        var results = [],
          loc,
          latLng,
          latLngBounds;
        if (data.response.view && data.response.view.length) {
          for (var i = 0; i <= data.response.view[0].result.length - 1; i++) {
            loc = data.response.view[0].result[i].location;
            latLng = L.latLng(loc.displayPosition.latitude, loc.displayPosition.longitude);
            latLngBounds = L.latLngBounds(
              L.latLng(loc.mapView.topLeft.latitude, loc.mapView.topLeft.longitude),
              L.latLng(loc.mapView.bottomRight.latitude, loc.mapView.bottomRight.longitude)
            );
            results[i] = {
              name: loc.address.label,
              properties: loc.address,
              bbox: latLngBounds,
              center: latLng
            };
          }
        }
        cb.call(context, results);
      });
    }
  });
  function here(options) {
    return new HERE(options);
  }

  var LatLng = L.Class.extend({
    options: {
      // the next geocoder to use
      next: undefined,
      sizeInMeters: 10000
    },

    initialize: function (options) {
      L.Util.setOptions(this, options);
    },

    geocode: function (query, cb, context) {
      var match;
      var center;
      // regex from https://github.com/openstreetmap/openstreetmap-website/blob/master/app/controllers/geocoder_controller.rb
      if ((match = query.match(/^([NS])\s*(\d{1,3}(?:\.\d*)?)\W*([EW])\s*(\d{1,3}(?:\.\d*)?)$/))) {
        // [NSEW] decimal degrees
        center = L.latLng(
          (/N/i.test(match[1]) ? 1 : -1) * parseFloat(match[2]),
          (/E/i.test(match[3]) ? 1 : -1) * parseFloat(match[4])
        );
      } else if (
        (match = query.match(/^(\d{1,3}(?:\.\d*)?)\s*([NS])\W*(\d{1,3}(?:\.\d*)?)\s*([EW])$/))
      ) {
        // decimal degrees [NSEW]
        center = L.latLng(
          (/N/i.test(match[2]) ? 1 : -1) * parseFloat(match[1]),
          (/E/i.test(match[4]) ? 1 : -1) * parseFloat(match[3])
        );
      } else if (
        (match = query.match(
          /^([NS])\s*(\d{1,3})°?\s*(\d{1,3}(?:\.\d*)?)?['′]?\W*([EW])\s*(\d{1,3})°?\s*(\d{1,3}(?:\.\d*)?)?['′]?$/
        ))
      ) {
        // [NSEW] degrees, decimal minutes
        center = L.latLng(
          (/N/i.test(match[1]) ? 1 : -1) * (parseFloat(match[2]) + parseFloat(match[3] / 60)),
          (/E/i.test(match[4]) ? 1 : -1) * (parseFloat(match[5]) + parseFloat(match[6] / 60))
        );
      } else if (
        (match = query.match(
          /^(\d{1,3})°?\s*(\d{1,3}(?:\.\d*)?)?['′]?\s*([NS])\W*(\d{1,3})°?\s*(\d{1,3}(?:\.\d*)?)?['′]?\s*([EW])$/
        ))
      ) {
        // degrees, decimal minutes [NSEW]
        center = L.latLng(
          (/N/i.test(match[3]) ? 1 : -1) * (parseFloat(match[1]) + parseFloat(match[2] / 60)),
          (/E/i.test(match[6]) ? 1 : -1) * (parseFloat(match[4]) + parseFloat(match[5] / 60))
        );
      } else if (
        (match = query.match(
          /^([NS])\s*(\d{1,3})°?\s*(\d{1,2})['′]?\s*(\d{1,3}(?:\.\d*)?)?["″]?\W*([EW])\s*(\d{1,3})°?\s*(\d{1,2})['′]?\s*(\d{1,3}(?:\.\d*)?)?["″]?$/
        ))
      ) {
        // [NSEW] degrees, minutes, decimal seconds
        center = L.latLng(
          (/N/i.test(match[1]) ? 1 : -1) *
          (parseFloat(match[2]) + parseFloat(match[3] / 60 + parseFloat(match[4] / 3600))),
          (/E/i.test(match[5]) ? 1 : -1) *
          (parseFloat(match[6]) + parseFloat(match[7] / 60) + parseFloat(match[8] / 3600))
        );
      } else if (
        (match = query.match(
          /^(\d{1,3})°?\s*(\d{1,2})['′]?\s*(\d{1,3}(?:\.\d*)?)?["″]\s*([NS])\W*(\d{1,3})°?\s*(\d{1,2})['′]?\s*(\d{1,3}(?:\.\d*)?)?["″]?\s*([EW])$/
        ))
      ) {
        // degrees, minutes, decimal seconds [NSEW]
        center = L.latLng(
          (/N/i.test(match[4]) ? 1 : -1) *
          (parseFloat(match[1]) + parseFloat(match[2] / 60 + parseFloat(match[3] / 3600))),
          (/E/i.test(match[8]) ? 1 : -1) *
          (parseFloat(match[5]) + parseFloat(match[6] / 60) + parseFloat(match[7] / 3600))
        );
      } else if (
        (match = query.match(/^\s*([+-]?\d+(?:\.\d*)?)\s*[\s,]\s*([+-]?\d+(?:\.\d*)?)\s*$/))
      ) {
        center = L.latLng(parseFloat(match[1]), parseFloat(match[2]));
      }
      if (center) {
        var results = [
          {
            name: query,
            center: center,
            bbox: center.toBounds(this.options.sizeInMeters)
          }
        ];
        cb.call(context, results);
      } else if (this.options.next) {
        this.options.next.geocode(query, cb, context);
      }
    }
  });

  function latLng(options) {
    return new LatLng(options);
  }

  var Mapbox = L.Class.extend({
    options: {
      serviceUrl: 'https://api.mapbox.com/geocoding/v5/mapbox.places/',
      geocodingQueryParams: {},
      reverseQueryParams: {}
    },

    initialize: function (accessToken, options) {
      L.setOptions(this, options);
      this.options.geocodingQueryParams.access_token = accessToken;
      this.options.reverseQueryParams.access_token = accessToken;
    },

    geocode: function (query, cb, context) {
      var params = this.options.geocodingQueryParams;
      if (
        params.proximity !== undefined &&
        params.proximity.lat !== undefined &&
        params.proximity.lng !== undefined
      ) {
        params.proximity = params.proximity.lng + ',' + params.proximity.lat;
      }
      getJSON(this.options.serviceUrl + encodeURIComponent(query) + '.json', params, function (data) {
        var results = [],
          loc,
          latLng,
          latLngBounds;
        if (data.features && data.features.length) {
          for (var i = 0; i <= data.features.length - 1; i++) {
            loc = data.features[i];
            latLng = L.latLng(loc.center.reverse());
            if (loc.bbox) {
              latLngBounds = L.latLngBounds(
                L.latLng(loc.bbox.slice(0, 2).reverse()),
                L.latLng(loc.bbox.slice(2, 4).reverse())
              );
            } else {
              latLngBounds = L.latLngBounds(latLng, latLng);
            }

            var properties = {
              text: loc.text,
              address: loc.address
            };

            for (var j = 0; j < (loc.context || []).length; j++) {
              var id = loc.context[j].id.split('.')[0];
              properties[id] = loc.context[j].text;

              // Get country code when available
              if (loc.context[j].short_code) {
                properties['countryShortCode'] = loc.context[j].short_code;
              }
            }

            results[i] = {
              name: loc.place_name,
              bbox: latLngBounds,
              center: latLng,
              properties: properties
            };
          }
        }

        cb.call(context, results);
      });
    },

    suggest: function (query, cb, context) {
      return this.geocode(query, cb, context);
    },

    reverse: function (location, scale, cb, context) {
      getJSON(
        this.options.serviceUrl +
        encodeURIComponent(location.lng) +
        ',' +
        encodeURIComponent(location.lat) +
        '.json',
        this.options.reverseQueryParams,
        function (data) {
          var results = [],
            loc,
            latLng,
            latLngBounds;
          if (data.features && data.features.length) {
            for (var i = 0; i <= data.features.length - 1; i++) {
              loc = data.features[i];
              latLng = L.latLng(loc.center.reverse());
              if (loc.bbox) {
                latLngBounds = L.latLngBounds(
                  L.latLng(loc.bbox.slice(0, 2).reverse()),
                  L.latLng(loc.bbox.slice(2, 4).reverse())
                );
              } else {
                latLngBounds = L.latLngBounds(latLng, latLng);
              }
              results[i] = {
                name: loc.place_name,
                bbox: latLngBounds,
                center: latLng
              };
            }
          }

          cb.call(context, results);
        }
      );
    }
  });

  function mapbox(accessToken, options) {
    return new Mapbox(accessToken, options);
  }

  var MapQuest = L.Class.extend({
    options: {
      serviceUrl: 'https://www.mapquestapi.com/geocoding/v1'
    },

    initialize: function (key, options) {
      // MapQuest seems to provide URI encoded API keys,
      // so to avoid encoding them twice, we decode them here
      this._key = decodeURIComponent(key);

      L.Util.setOptions(this, options);
    },

    _formatName: function () {
      var r = [],
        i;
      for (i = 0; i < arguments.length; i++) {
        if (arguments[i]) {
          r.push(arguments[i]);
        }
      }

      return r.join(', ');
    },

    geocode: function (query, cb, context) {
      getJSON(
        this.options.serviceUrl + '/address',
        {
          key: this._key,
          location: query,
          limit: 5,
          outFormat: 'json'
        },
        L.bind(function (data) {
          var results = [],
            loc,
            latLng;
          if (data.results && data.results[0].locations) {
            for (var i = data.results[0].locations.length - 1; i >= 0; i--) {
              loc = data.results[0].locations[i];
              latLng = L.latLng(loc.latLng);
              results[i] = {
                name: this._formatName(loc.street, loc.adminArea4, loc.adminArea3, loc.adminArea1),
                bbox: L.latLngBounds(latLng, latLng),
                center: latLng
              };
            }
          }

          cb.call(context, results);
        }, this)
      );
    },

    reverse: function (location, scale, cb, context) {
      getJSON(
        this.options.serviceUrl + '/reverse',
        {
          key: this._key,
          location: location.lat + ',' + location.lng,
          outputFormat: 'json'
        },
        L.bind(function (data) {
          var results = [],
            loc,
            latLng;
          if (data.results && data.results[0].locations) {
            for (var i = data.results[0].locations.length - 1; i >= 0; i--) {
              loc = data.results[0].locations[i];
              latLng = L.latLng(loc.latLng);
              results[i] = {
                name: this._formatName(loc.street, loc.adminArea4, loc.adminArea3, loc.adminArea1),
                bbox: L.latLngBounds(latLng, latLng),
                center: latLng
              };
            }
          }

          cb.call(context, results);
        }, this)
      );
    }
  });

  function mapQuest(key, options) {
    return new MapQuest(key, options);
  }

  var Neutrino = L.Class.extend({
    options: {
      userId: '<insert your userId here>',
      apiKey: '<insert your apiKey here>',
      serviceUrl: 'https://neutrinoapi.com/'
    },

    initialize: function (options) {
      L.Util.setOptions(this, options);
    },

    // https://www.neutrinoapi.com/api/geocode-address/
    geocode: function (query, cb, context) {
      getJSON(
        this.options.serviceUrl + 'geocode-address',
        {
          apiKey: this.options.apiKey,
          userId: this.options.userId,
          //get three words and make a dot based string
          address: query.split(/\s+/).join('.')
        },
        function (data) {
          var results = [],
            latLng,
            latLngBounds;
          if (data.locations) {
            data.geometry = data.locations[0];
            latLng = L.latLng(data.geometry['latitude'], data.geometry['longitude']);
            latLngBounds = L.latLngBounds(latLng, latLng);
            results[0] = {
              name: data.geometry.address,
              bbox: latLngBounds,
              center: latLng
            };
          }

          cb.call(context, results);
        }
      );
    },

    suggest: function (query, cb, context) {
      return this.geocode(query, cb, context);
    },

    // https://www.neutrinoapi.com/api/geocode-reverse/
    reverse: function (location, scale, cb, context) {
      getJSON(
        this.options.serviceUrl + 'geocode-reverse',
        {
          apiKey: this.options.apiKey,
          userId: this.options.userId,
          latitude: location.lat,
          longitude: location.lng
        },
        function (data) {
          var results = [],
            latLng,
            latLngBounds;
          if (data.status.status == 200 && data.found) {
            latLng = L.latLng(location.lat, location.lng);
            latLngBounds = L.latLngBounds(latLng, latLng);
            results[0] = {
              name: data.address,
              bbox: latLngBounds,
              center: latLng
            };
          }
          cb.call(context, results);
        }
      );
    }
  });

  function neutrino(accessToken) {
    return new Neutrino(accessToken);
  }

  var Nominatim = L.Class.extend({
    options: {
      serviceUrl: 'https://nominatim.openstreetmap.org/',
      geocodingQueryParams: {},
      reverseQueryParams: {},
      htmlTemplate: function (r) {
        var a = r.address,
          className,
          parts = [];
        if (a.road || a.building) {
          parts.push('{building} {road} {house_number}');
        }

        if (a.city || a.town || a.village || a.hamlet) {
          className = parts.length > 0 ? 'leaflet-control-geocoder-address-detail' : '';
          parts.push(
            '<span class="' + className + '">{postcode} {city} {town} {village} {hamlet}</span>'
          );
        }

        if (a.state || a.country) {
          className = parts.length > 0 ? 'leaflet-control-geocoder-address-context' : '';
          parts.push('<span class="' + className + '">{state} {country}</span>');
        }

        return template(parts.join('<br/>'), a);
      }
    },

    initialize: function (options) {
      L.Util.setOptions(this, options);
    },

    geocode: function (query, cb, context) {
      getJSON(
        this.options.serviceUrl + 'search',
        L.extend(
          {
            q: query,
            limit: 5,
            format: 'json',
            addressdetails: 1
          },
          this.options.geocodingQueryParams
        ),
        L.bind(function (data) {
          var results = [];
          for (var i = data.length - 1; i >= 0; i--) {
            var bbox = data[i].boundingbox;
            for (var j = 0; j < 4; j++) bbox[j] = parseFloat(bbox[j]);
            results[i] = {
              icon: data[i].icon,
              name: data[i].display_name,
              html: this.options.htmlTemplate ? this.options.htmlTemplate(data[i]) : undefined,
              bbox: L.latLngBounds([bbox[0], bbox[2]], [bbox[1], bbox[3]]),
              center: L.latLng(data[i].lat, data[i].lon),
              properties: data[i]
            };
          }
          cb.call(context, results);
        }, this)
      );
    },

    suggest: function (query, cb, context) {
      return this.geocode(query, cb, context);
    },

    reverse: function (location, scale, cb, context) {
      getJSON(
        this.options.serviceUrl + 'reverse',
        L.extend(
          {
            lat: location.lat,
            lon: location.lng,
            zoom: Math.round(Math.log(scale / 256) / Math.log(2)),
            addressdetails: 1,
            format: 'json'
          },
          this.options.reverseQueryParams
        ),
        L.bind(function (data) {
          var result = [],
            loc;

          if (data && data.lat && data.lon) {
            loc = L.latLng(data.lat, data.lon);
            result.push({
              name: data.display_name,
              html: this.options.htmlTemplate ? this.options.htmlTemplate(data) : undefined,
              center: loc,
              bounds: L.latLngBounds(loc, loc),
              properties: data
            });
          }

          cb.call(context, result);
        }, this)
      );
    }
  });

  function nominatim(options) {
    return new Nominatim(options);
  }

  var OpenLocationCode = L.Class.extend({
    options: {
      OpenLocationCode: undefined,
      codeLength: undefined
    },

    initialize: function (options) {
      L.setOptions(this, options);
    },

    geocode: function (query, cb, context) {
      try {
        var decoded = this.options.OpenLocationCode.decode(query);
        var result = {
          name: query,
          center: L.latLng(decoded.latitudeCenter, decoded.longitudeCenter),
          bbox: L.latLngBounds(
            L.latLng(decoded.latitudeLo, decoded.longitudeLo),
            L.latLng(decoded.latitudeHi, decoded.longitudeHi)
          )
        };
        cb.call(context, [result]);
      } catch (e) {
        console.warn(e); // eslint-disable-line no-console
        cb.call(context, []);
      }
    },
    reverse: function (location, scale, cb, context) {
      try {
        var code = this.options.OpenLocationCode.encode(
          location.lat,
          location.lng,
          this.options.codeLength
        );
        var result = {
          name: code,
          center: L.latLng(location.lat, location.lng),
          bbox: L.latLngBounds(
            L.latLng(location.lat, location.lng),
            L.latLng(location.lat, location.lng)
          )
        };
        cb.call(context, [result]);
      } catch (e) {
        console.warn(e); // eslint-disable-line no-console
        cb.call(context, []);
      }
    }
  });

  function openLocationCode(options) {
    return new OpenLocationCode(options);
  }

  var OpenCage = L.Class.extend({
    options: {
      serviceUrl: 'https://api.opencagedata.com/geocode/v1/json',
      geocodingQueryParams: {},
      reverseQueryParams: {}
    },

    initialize: function (apiKey, options) {
      L.setOptions(this, options);
      this._accessToken = apiKey;
    },

    geocode: function (query, cb, context) {
      var params = {
        key: this._accessToken,
        q: query
      };
      params = L.extend(params, this.options.geocodingQueryParams);
      getJSON(this.options.serviceUrl, params, function (data) {
        var results = [],
          latLng,
          latLngBounds,
          loc;
        if (data.results && data.results.length) {
          for (var i = 0; i < data.results.length; i++) {
            loc = data.results[i];
            latLng = L.latLng(loc.geometry);
            if (loc.annotations && loc.annotations.bounds) {
              latLngBounds = L.latLngBounds(
                L.latLng(loc.annotations.bounds.northeast),
                L.latLng(loc.annotations.bounds.southwest)
              );
            } else {