1 | (function (global, factory) {
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2 | typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
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3 | typeof define === 'function' && define.amd ? define(factory) :
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4 | (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.i18nextBrowserLanguageDetector = factory());
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5 | }(this, (function () { 'use strict';
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6 |
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7 | function _classCallCheck(instance, Constructor) {
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8 | if (!(instance instanceof Constructor)) {
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9 | throw new TypeError("Cannot call a class as a function");
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10 | }
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11 | }
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12 |
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13 | function _defineProperties(target, props) {
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14 | for (var i = 0; i < props.length; i++) {
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15 | var descriptor = props[i];
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16 | descriptor.enumerable = descriptor.enumerable || false;
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17 | descriptor.configurable = true;
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18 | if ("value" in descriptor) descriptor.writable = true;
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19 | Object.defineProperty(target, descriptor.key, descriptor);
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20 | }
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21 | }
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22 |
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23 | function _createClass(Constructor, protoProps, staticProps) {
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24 | if (protoProps) _defineProperties(Constructor.prototype, protoProps);
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25 | if (staticProps) _defineProperties(Constructor, staticProps);
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26 | return Constructor;
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27 | }
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28 |
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29 | var arr = [];
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30 | var each = arr.forEach;
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31 | var slice = arr.slice;
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32 | function defaults(obj) {
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33 | each.call(slice.call(arguments, 1), function (source) {
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34 | if (source) {
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35 | for (var prop in source) {
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36 | if (obj[prop] === undefined) obj[prop] = source[prop];
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37 | }
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38 | }
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39 | });
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40 | return obj;
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41 | }
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42 |
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43 |
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44 | var fieldContentRegExp = /^[\u0009\u0020-\u007e\u0080-\u00ff]+$/;
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45 |
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46 | var serializeCookie = function serializeCookie(name, val, options) {
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47 | var opt = options || {};
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48 | opt.path = opt.path || '/';
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49 | var value = encodeURIComponent(val);
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50 | var str = name + '=' + value;
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51 |
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52 | if (opt.maxAge > 0) {
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53 | var maxAge = opt.maxAge - 0;
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54 | if (isNaN(maxAge)) throw new Error('maxAge should be a Number');
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55 | str += '; Max-Age=' + Math.floor(maxAge);
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56 | }
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57 |
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58 | if (opt.domain) {
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59 | if (!fieldContentRegExp.test(opt.domain)) {
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60 | throw new TypeError('option domain is invalid');
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61 | }
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62 |
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63 | str += '; Domain=' + opt.domain;
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64 | }
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65 |
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66 | if (opt.path) {
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67 | if (!fieldContentRegExp.test(opt.path)) {
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68 | throw new TypeError('option path is invalid');
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69 | }
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70 |
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71 | str += '; Path=' + opt.path;
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72 | }
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73 |
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74 | if (opt.expires) {
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75 | if (typeof opt.expires.toUTCString !== 'function') {
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76 | throw new TypeError('option expires is invalid');
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77 | }
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78 |
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79 | str += '; Expires=' + opt.expires.toUTCString();
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80 | }
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81 |
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82 | if (opt.httpOnly) str += '; HttpOnly';
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83 | if (opt.secure) str += '; Secure';
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84 |
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85 | if (opt.sameSite) {
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86 | var sameSite = typeof opt.sameSite === 'string' ? opt.sameSite.toLowerCase() : opt.sameSite;
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87 |
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88 | switch (sameSite) {
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89 | case true:
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90 | str += '; SameSite=Strict';
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91 | break;
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92 |
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93 | case 'lax':
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94 | str += '; SameSite=Lax';
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95 | break;
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96 |
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97 | case 'strict':
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98 | str += '; SameSite=Strict';
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99 | break;
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100 |
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101 | case 'none':
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102 | str += '; SameSite=None';
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103 | break;
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104 |
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105 | default:
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106 | throw new TypeError('option sameSite is invalid');
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107 | }
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108 | }
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109 |
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110 | return str;
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111 | };
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112 |
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113 | var cookie = {
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114 | create: function create(name, value, minutes, domain) {
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115 | var cookieOptions = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : {
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116 | path: '/',
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117 | sameSite: 'strict'
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118 | };
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119 |
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120 | if (minutes) {
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121 | cookieOptions.expires = new Date();
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122 | cookieOptions.expires.setTime(cookieOptions.expires.getTime() + minutes * 60 * 1000);
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123 | }
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124 |
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125 | if (domain) cookieOptions.domain = domain;
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126 | document.cookie = serializeCookie(name, encodeURIComponent(value), cookieOptions);
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127 | },
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128 | read: function read(name) {
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129 | var nameEQ = name + '=';
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130 | var ca = document.cookie.split(';');
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131 |
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132 | for (var i = 0; i < ca.length; i++) {
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133 | var c = ca[i];
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134 |
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135 | while (c.charAt(0) === ' ') {
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136 | c = c.substring(1, c.length);
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137 | }
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138 |
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139 | if (c.indexOf(nameEQ) === 0) return c.substring(nameEQ.length, c.length);
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140 | }
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141 |
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142 | return null;
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143 | },
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144 | remove: function remove(name) {
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145 | this.create(name, '', -1);
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146 | }
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147 | };
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148 | var cookie$1 = {
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149 | name: 'cookie',
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150 | lookup: function lookup(options) {
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151 | var found;
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152 |
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153 | if (options.lookupCookie && typeof document !== 'undefined') {
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154 | var c = cookie.read(options.lookupCookie);
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155 | if (c) found = c;
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156 | }
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157 |
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158 | return found;
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159 | },
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160 | cacheUserLanguage: function cacheUserLanguage(lng, options) {
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161 | if (options.lookupCookie && typeof document !== 'undefined') {
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162 | cookie.create(options.lookupCookie, lng, options.cookieMinutes, options.cookieDomain, options.cookieOptions);
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163 | }
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164 | }
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165 | };
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166 |
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167 | var querystring = {
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168 | name: 'querystring',
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169 | lookup: function lookup(options) {
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170 | var found;
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171 |
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172 | if (typeof window !== 'undefined') {
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173 | var query = window.location.search.substring(1);
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174 | var params = query.split('&');
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175 |
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176 | for (var i = 0; i < params.length; i++) {
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177 | var pos = params[i].indexOf('=');
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178 |
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179 | if (pos > 0) {
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180 | var key = params[i].substring(0, pos);
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181 |
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182 | if (key === options.lookupQuerystring) {
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183 | found = params[i].substring(pos + 1);
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184 | }
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185 | }
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186 | }
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187 | }
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188 |
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189 | return found;
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190 | }
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191 | };
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192 |
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193 | var hasLocalStorageSupport = null;
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194 |
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195 | var localStorageAvailable = function localStorageAvailable() {
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196 | if (hasLocalStorageSupport !== null) return hasLocalStorageSupport;
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197 |
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198 | try {
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199 | hasLocalStorageSupport = window !== 'undefined' && window.localStorage !== null;
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200 | var testKey = 'i18next.translate.boo';
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201 | window.localStorage.setItem(testKey, 'foo');
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202 | window.localStorage.removeItem(testKey);
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203 | } catch (e) {
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204 | hasLocalStorageSupport = false;
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205 | }
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206 |
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207 | return hasLocalStorageSupport;
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208 | };
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209 |
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210 | var localStorage = {
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211 | name: 'localStorage',
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212 | lookup: function lookup(options) {
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213 | var found;
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214 |
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215 | if (options.lookupLocalStorage && localStorageAvailable()) {
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216 | var lng = window.localStorage.getItem(options.lookupLocalStorage);
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217 | if (lng) found = lng;
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218 | }
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219 |
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220 | return found;
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221 | },
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222 | cacheUserLanguage: function cacheUserLanguage(lng, options) {
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223 | if (options.lookupLocalStorage && localStorageAvailable()) {
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224 | window.localStorage.setItem(options.lookupLocalStorage, lng);
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225 | }
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226 | }
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227 | };
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228 |
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229 | var hasSessionStorageSupport = null;
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230 |
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231 | var sessionStorageAvailable = function sessionStorageAvailable() {
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232 | if (hasSessionStorageSupport !== null) return hasSessionStorageSupport;
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233 |
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234 | try {
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235 | hasSessionStorageSupport = window !== 'undefined' && window.sessionStorage !== null;
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236 | var testKey = 'i18next.translate.boo';
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237 | window.sessionStorage.setItem(testKey, 'foo');
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238 | window.sessionStorage.removeItem(testKey);
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239 | } catch (e) {
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240 | hasSessionStorageSupport = false;
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241 | }
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242 |
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243 | return hasSessionStorageSupport;
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244 | };
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245 |
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246 | var sessionStorage = {
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247 | name: 'sessionStorage',
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248 | lookup: function lookup(options) {
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249 | var found;
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250 |
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251 | if (options.lookupSessionStorage && sessionStorageAvailable()) {
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252 | var lng = window.sessionStorage.getItem(options.lookupSessionStorage);
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253 | if (lng) found = lng;
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254 | }
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255 |
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256 | return found;
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257 | },
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258 | cacheUserLanguage: function cacheUserLanguage(lng, options) {
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259 | if (options.lookupSessionStorage && sessionStorageAvailable()) {
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260 | window.sessionStorage.setItem(options.lookupSessionStorage, lng);
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261 | }
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262 | }
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263 | };
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264 |
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265 | var navigator$1 = {
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266 | name: 'navigator',
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267 | lookup: function lookup(options) {
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268 | var found = [];
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269 |
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270 | if (typeof navigator !== 'undefined') {
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271 | if (navigator.languages) {
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272 |
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273 | for (var i = 0; i < navigator.languages.length; i++) {
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274 | found.push(navigator.languages[i]);
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275 | }
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276 | }
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277 |
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278 | if (navigator.userLanguage) {
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279 | found.push(navigator.userLanguage);
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280 | }
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281 |
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282 | if (navigator.language) {
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283 | found.push(navigator.language);
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284 | }
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285 | }
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286 |
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287 | return found.length > 0 ? found : undefined;
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288 | }
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289 | };
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290 |
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291 | var htmlTag = {
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292 | name: 'htmlTag',
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293 | lookup: function lookup(options) {
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294 | var found;
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295 | var htmlTag = options.htmlTag || (typeof document !== 'undefined' ? document.documentElement : null);
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296 |
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297 | if (htmlTag && typeof htmlTag.getAttribute === 'function') {
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298 | found = htmlTag.getAttribute('lang');
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299 | }
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300 |
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301 | return found;
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302 | }
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303 | };
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304 |
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305 | var path = {
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306 | name: 'path',
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307 | lookup: function lookup(options) {
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308 | var found;
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309 |
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310 | if (typeof window !== 'undefined') {
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311 | var language = window.location.pathname.match(/\/([a-zA-Z-]*)/g);
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312 |
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313 | if (language instanceof Array) {
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314 | if (typeof options.lookupFromPathIndex === 'number') {
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315 | if (typeof language[options.lookupFromPathIndex] !== 'string') {
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316 | return undefined;
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317 | }
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318 |
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319 | found = language[options.lookupFromPathIndex].replace('/', '');
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320 | } else {
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321 | found = language[0].replace('/', '');
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322 | }
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323 | }
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324 | }
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325 |
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326 | return found;
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327 | }
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328 | };
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329 |
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330 | var subdomain = {
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331 | name: 'subdomain',
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332 | lookup: function lookup(options) {
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333 | var found;
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334 |
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335 | if (typeof window !== 'undefined') {
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336 | var language = window.location.href.match(/(?:http[s]*\:\/\/)*(.*?)\.(?=[^\/]*\..{2,5})/gi);
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337 |
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338 | if (language instanceof Array) {
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339 | if (typeof options.lookupFromSubdomainIndex === 'number') {
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340 | found = language[options.lookupFromSubdomainIndex].replace('http://', '').replace('https://', '').replace('.', '');
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341 | } else {
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342 | found = language[0].replace('http://', '').replace('https://', '').replace('.', '');
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343 | }
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344 | }
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345 | }
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346 |
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347 | return found;
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348 | }
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349 | };
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350 |
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351 | function getDefaults() {
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352 | return {
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353 | order: ['querystring', 'cookie', 'localStorage', 'sessionStorage', 'navigator', 'htmlTag'],
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354 | lookupQuerystring: 'lng',
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355 | lookupCookie: 'i18next',
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356 | lookupLocalStorage: 'i18nextLng',
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357 | lookupSessionStorage: 'i18nextLng',
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358 |
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359 | caches: ['localStorage'],
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360 | excludeCacheFor: ['cimode']
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361 |
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362 |
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363 | };
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364 | }
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365 |
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366 | var Browser = function () {
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367 | function Browser(services) {
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368 | var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
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369 |
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370 | _classCallCheck(this, Browser);
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371 |
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372 | this.type = 'languageDetector';
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373 | this.detectors = {};
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374 | this.init(services, options);
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375 | }
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376 |
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377 | _createClass(Browser, [{
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378 | key: "init",
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379 | value: function init(services) {
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380 | var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
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381 | var i18nOptions = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
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382 | this.services = services;
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383 | this.options = defaults(options, this.options || {}, getDefaults());
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384 |
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385 | if (this.options.lookupFromUrlIndex) this.options.lookupFromPathIndex = this.options.lookupFromUrlIndex;
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386 | this.i18nOptions = i18nOptions;
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387 | this.addDetector(cookie$1);
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388 | this.addDetector(querystring);
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389 | this.addDetector(localStorage);
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390 | this.addDetector(sessionStorage);
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391 | this.addDetector(navigator$1);
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392 | this.addDetector(htmlTag);
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393 | this.addDetector(path);
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394 | this.addDetector(subdomain);
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395 | }
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396 | }, {
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397 | key: "addDetector",
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398 | value: function addDetector(detector) {
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399 | this.detectors[detector.name] = detector;
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400 | }
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401 | }, {
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402 | key: "detect",
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403 | value: function detect(detectionOrder) {
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404 | var _this = this;
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405 |
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406 | if (!detectionOrder) detectionOrder = this.options.order;
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407 | var detected = [];
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408 | detectionOrder.forEach(function (detectorName) {
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409 | if (_this.detectors[detectorName]) {
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410 | var lookup = _this.detectors[detectorName].lookup(_this.options);
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411 |
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412 | if (lookup && typeof lookup === 'string') lookup = [lookup];
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413 | if (lookup) detected = detected.concat(lookup);
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414 | }
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415 | });
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416 | if (this.services.languageUtils.getBestMatchFromCodes) return detected;
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417 |
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418 | return detected.length > 0 ? detected[0] : null;
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419 | }
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420 | }, {
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421 | key: "cacheUserLanguage",
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422 | value: function cacheUserLanguage(lng, caches) {
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423 | var _this2 = this;
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424 |
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425 | if (!caches) caches = this.options.caches;
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426 | if (!caches) return;
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427 | if (this.options.excludeCacheFor && this.options.excludeCacheFor.indexOf(lng) > -1) return;
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428 | caches.forEach(function (cacheName) {
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429 | if (_this2.detectors[cacheName]) _this2.detectors[cacheName].cacheUserLanguage(lng, _this2.options);
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430 | });
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431 | }
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432 | }]);
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433 |
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434 | return Browser;
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435 | }();
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436 |
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437 | Browser.type = 'languageDetector';
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438 |
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439 | return Browser;
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440 |
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441 | })));
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