Source: map-google-maps/src/main/resources/META-INF/resources/js/GoogleMapsGeocoder.es.js

  1. /**
  2.  * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
  3.  *
  4.  * This library is free software; you can redistribute it and/or modify it under
  5.  * the terms of the GNU Lesser General Public License as published by the Free
  6.  * Software Foundation; either version 2.1 of the License, or (at your option)
  7.  * any later version.
  8.  *
  9.  * This library is distributed in the hope that it will be useful, but WITHOUT
  10.  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  11.  * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
  12.  * details.
  13.  */
  15. import State from 'metal-state';
  17. /**
  18.  * GoogleMapsGeocoder
  19.  * @review
  20.  */
  21. class GoogleMapsGeocoder extends State {
  23. 	/**
  24. 	 * Creates a new geocoder using Google Map's API
  25. 	 * @param  {Array} args List of arguments to be passed to State
  26. 	 * @review
  27. 	 */
  28. 	constructor(...args) {
  29. 		super(...args);
  31. 		this._geocoder = new google.maps.Geocoder();
  32. 	}
  34. 	/**
  35. 	 * Handles the server response of a successfull address/location resolution
  36. 	 * @param {function} callback Callback that will be executed on success
  37. 	 * @param {Object} location Raw location information
  38. 	 * @param {Object} response Server response
  39. 	 * @param {Object} status Server response status
  40. 	 * @protected
  41. 	 * @review
  42. 	 */
  43. 	_handleGeocoderResponse(callback, location, response, status) {
  44. 		const result = {
  45. 			data: {},
  46. 			err: status === google.maps.GeocoderStatus.OK ? null : status,
  47. 		};
  49. 		if (!result.err) {
  50. 			const geocoderResult = response[0];
  51. 			const geolocation = geocoderResult.geometry.location;
  53. 			result.data = {
  54. 				address: geocoderResult.formatted_address,
  55. 				location: {
  56. 					lat: geolocation.lat(),
  57. 					lng: geolocation.lng(),
  58. 				},
  59. 			};
  60. 		}
  61. 		else {
  62. 			result.data = {
  63. 				address: '',
  64. 				location,
  65. 			};
  66. 		}
  68. 		callback(result);
  69. 	}
  71. 	/**
  72. 	 * Transforms a given address into valid latitude and longitude
  73. 	 * @param {string} query Address to be transformed into latitude and longitude
  74. 	 * @param {function} callback Callback that will be executed on success
  75. 	 * @review
  76. 	 */
  77. 	forward(query, callback) {
  78. 		const payload = {
  79. 			address: query,
  80. 		};
  82. 		this._geocoder.geocode(
  83. 			payload,
  84. 			this._handleGeocoderResponse.bind(this, callback)
  85. 		);
  86. 	}
  88. 	/**
  89. 	 * Transforms a given location object (lat, lng) into a valid address
  90. 	 * @param {string} location Location information to be sent to the server
  91. 	 * @param {function} callback Callback that will be executed on success
  92. 	 * @review
  93. 	 */
  94. 	reverse(location, callback) {
  95. 		const payload = {
  96. 			location,
  97. 		};
  99. 		this._geocoder.geocode(
  100. 			payload,
  101. 			this._handleGeocoderResponse.bind(this, callback, location)
  102. 		);
  103. 	}
  104. }
  106. export default GoogleMapsGeocoder;
  107. export {GoogleMapsGeocoder};