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1 | <?php |
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2 | namespace Elgg\I18n; |
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3 | |||
4 | use Elgg\Config; |
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5 | |||
6 | /** |
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7 | * WARNING: API IN FLUX. DO NOT USE DIRECTLY. |
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8 | * |
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9 | * @access private |
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10 | * |
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11 | * @since 1.10.0 |
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12 | */ |
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13 | class Translator { |
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14 | |||
15 | /** |
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16 | * @var Config |
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17 | */ |
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18 | private $config; |
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19 | |||
20 | /** |
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21 | * Constructor |
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22 | * |
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23 | * @param Config $config Elgg config |
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24 | */ |
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25 | 322 | public function __construct(Config $config) { |
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26 | 322 | $this->config = $config; |
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27 | 322 | $this->defaultPath = dirname(dirname(dirname(dirname(__DIR__)))) . "/languages/"; |
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28 | 322 | } |
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29 | |||
30 | /** |
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31 | * Given a message key, returns an appropriately translated full-text string |
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32 | * |
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33 | * @param string $message_key The short message code |
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34 | * @param array $args An array of arguments to pass through vsprintf(). |
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35 | * @param string $language Optionally, the standard language code |
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36 | * (defaults to site/user default, then English) |
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37 | * |
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38 | * @return string Either the translated string, the English string, |
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39 | * or the original language string. |
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40 | */ |
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41 | 41 | public function translate($message_key, array $args = [], $language = "") { |
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42 | // TODO find a way to cache getLanguage() and get rid of this |
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43 | 41 | static $CURRENT_LANGUAGE; |
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44 | |||
45 | 41 | if (!is_string($message_key) || strlen($message_key) < 1) { |
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46 | _elgg_services()->logger->warn( |
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47 | '$message_key needs to be a string in ' . __METHOD__ . '(), ' . gettype($message_key) . ' provided' |
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48 | ); |
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49 | return ''; |
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50 | } |
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51 | |||
52 | 41 | if (!$CURRENT_LANGUAGE) { |
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53 | $CURRENT_LANGUAGE = $this->getCurrentLanguage(); |
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54 | } |
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55 | 41 | if (!$language) { |
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56 | 22 | $language = $CURRENT_LANGUAGE; |
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57 | } |
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58 | |||
59 | 41 | $this->ensureTranslationsLoaded($language); |
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60 | |||
61 | 41 | $notice = ''; |
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62 | 41 | $string = $message_key; |
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63 | |||
64 | // avoid dupes without overhead of array_unique |
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65 | 41 | $langs[$language] = true; |
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66 | 41 | $langs['en'] = true; |
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67 | |||
68 | 41 | foreach (array_keys($langs) as $try_lang) { |
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69 | 41 | if (isset($GLOBALS['_ELGG']->translations[$try_lang][$message_key])) { |
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70 | 40 | $string = $GLOBALS['_ELGG']->translations[$try_lang][$message_key]; |
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71 | |||
72 | // only pass through if we have arguments to allow backward compatibility |
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73 | // with manual sprintf() calls. |
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74 | 40 | if ($args) { |
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75 | 33 | $string = vsprintf($string, $args); |
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76 | } |
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77 | |||
78 | 40 | break; |
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79 | } else { |
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80 | 3 | $notice = sprintf( |
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81 | 3 | 'Missing %s translation for "%s" language key', |
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82 | 3 | ($try_lang === 'en') ? 'English' : $try_lang, |
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83 | 3 | $message_key |
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84 | ); |
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85 | } |
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86 | } |
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87 | |||
88 | 41 | if ($notice) { |
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89 | 3 | _elgg_services()->logger->notice($notice); |
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90 | } |
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91 | |||
92 | 41 | return $string; |
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93 | } |
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94 | |||
95 | /** |
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96 | * Add a translation. |
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97 | * |
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98 | * Translations are arrays in the Zend Translation array format, eg: |
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99 | * |
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100 | * $english = array('message1' => 'message1', 'message2' => 'message2'); |
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101 | * $german = array('message1' => 'Nachricht1','message2' => 'Nachricht2'); |
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102 | * |
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103 | * @param string $country_code Standard country code (eg 'en', 'nl', 'es') |
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104 | * @param array $language_array Formatted array of strings |
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105 | * |
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106 | * @return bool Depending on success |
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107 | */ |
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108 | 138 | public function addTranslation($country_code, $language_array) { |
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109 | |||
110 | 138 | if (!isset($GLOBALS['_ELGG']->translations)) { |
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111 | $GLOBALS['_ELGG']->translations = []; |
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112 | } |
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113 | |||
114 | 138 | $country_code = strtolower($country_code); |
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115 | 138 | $country_code = trim($country_code); |
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116 | 138 | if (is_array($language_array) && $country_code != "") { |
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117 | 138 | if (sizeof($language_array) > 0) { |
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118 | 138 | if (!isset($GLOBALS['_ELGG']->translations[$country_code])) { |
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119 | 7 | $GLOBALS['_ELGG']->translations[$country_code] = $language_array; |
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120 | } else { |
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121 | 138 | $GLOBALS['_ELGG']->translations[$country_code] = $language_array + $GLOBALS['_ELGG']->translations[$country_code]; |
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122 | } |
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123 | } |
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124 | 138 | return true; |
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125 | } |
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126 | return false; |
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127 | } |
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128 | |||
129 | /** |
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130 | * Get the current system/user language or "en". |
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131 | * |
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132 | * @return string The language code for the site/user or "en" if not set |
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133 | */ |
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134 | public function getCurrentLanguage() { |
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135 | $language = $this->detectLanguage(); |
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136 | |||
137 | if (!$language) { |
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138 | $language = 'en'; |
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139 | } |
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140 | |||
141 | return $language; |
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142 | } |
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143 | |||
144 | /** |
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145 | * Detect the current system/user language or false. |
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146 | * |
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147 | * @return string The language code (eg "en") or false if not set |
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148 | */ |
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149 | 1 | public function detectLanguage() { |
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150 | 1 | $url_lang = _elgg_services()->input->get('hl'); |
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151 | 1 | if ($url_lang) { |
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152 | 1 | return $url_lang; |
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153 | } |
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154 | |||
155 | $user = _elgg_services()->session->getLoggedInUser(); |
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156 | $language = false; |
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157 | |||
158 | if (($user) && ($user->language)) { |
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159 | $language = $user->language; |
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160 | } |
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161 | |||
162 | if (!$language) { |
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163 | $site_language = $this->config->getVolatile('language'); |
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164 | if ($site_language) { |
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165 | $language = $site_language; |
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166 | } |
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167 | } |
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168 | |||
169 | return $language ? $language : false; |
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170 | } |
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171 | |||
172 | /** |
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173 | * Load both core and plugin translations |
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174 | * |
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175 | * By default this loads only English and the language of the logged |
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176 | * in user. |
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177 | * |
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178 | * The optional $language argument can be used to load translations |
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179 | * on-demand in case we need to translate something to a language not |
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180 | * loaded by default for the current request. |
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181 | * |
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182 | * @param string $language Language code |
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183 | * @access private |
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184 | */ |
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185 | public function loadTranslations($language = null) { |
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186 | if (elgg_is_system_cache_enabled()) { |
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187 | $loaded = true; |
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188 | |||
189 | if ($language) { |
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190 | $languages = [$language]; |
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191 | } else { |
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192 | $languages = array_unique(['en', $this->getCurrentLanguage()]); |
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193 | } |
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194 | |||
195 | foreach ($languages as $language) { |
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196 | $data = elgg_load_system_cache("$language.lang"); |
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197 | if ($data) { |
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198 | $this->addTranslation($language, unserialize($data)); |
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199 | } else { |
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200 | $loaded = false; |
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201 | } |
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202 | } |
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203 | |||
204 | if ($loaded) { |
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205 | $GLOBALS['_ELGG']->i18n_loaded_from_cache = true; |
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206 | // this is here to force |
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207 | $GLOBALS['_ELGG']->language_paths[$this->defaultPath] = true; |
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208 | return; |
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209 | } |
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210 | } |
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211 | |||
212 | // load core translations from languages directory |
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213 | $this->registerTranslations($this->defaultPath, false, $language); |
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214 | |||
215 | // Plugin translation have already been loaded for the default |
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216 | // languages by ElggApplication::bootCore(), so there's no need |
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217 | // to continue unless loading a specific language on-demand |
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218 | if ($language) { |
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219 | $this->loadPluginTranslations($language); |
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220 | } |
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221 | } |
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222 | |||
223 | /** |
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224 | * Load plugin translations for a language |
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225 | * |
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226 | * This is needed only if the current request uses a language |
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227 | * that is neither English of the same as the language of the |
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228 | * logged in user. |
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229 | * |
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230 | * @param string $language Language code |
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231 | * @return void |
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232 | * @throws \PluginException |
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233 | */ |
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234 | private function loadPluginTranslations($language) { |
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235 | // Get active plugins |
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236 | $plugins = _elgg_services()->plugins->find('active'); |
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237 | |||
238 | if (!$plugins) { |
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239 | // Active plugins were not found, so no need to register plugin translations |
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240 | return; |
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241 | } |
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242 | |||
243 | foreach ($plugins as $plugin) { |
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244 | $languages_path = "{$plugin->getPath()}languages/"; |
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245 | |||
246 | if (!is_dir($languages_path)) { |
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247 | // This plugin doesn't have anything to translate |
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248 | continue; |
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249 | } |
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250 | |||
251 | $language_file = "{$languages_path}{$language}.php"; |
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252 | |||
253 | if (!file_exists($language_file)) { |
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254 | // This plugin doesn't have translations for the requested language |
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255 | |||
256 | $name = $plugin->getDisplayName(); |
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257 | _elgg_services()->logger->notice("Plugin $name is missing translations for $language language"); |
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258 | |||
259 | continue; |
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260 | } |
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261 | |||
262 | // Register translations from the plugin languages directory |
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263 | if (!$this->registerTranslations($languages_path, false, $language)) { |
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264 | throw new \PluginException(sprintf('Cannot register languages for plugin %s (guid: %s) at %s.', |
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265 | [$plugin->getID(), $plugin->guid, $languages_path])); |
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266 | } |
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267 | } |
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268 | } |
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269 | |||
270 | /** |
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271 | * Registers translations in a directory assuming the standard plugin layout. |
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272 | * |
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273 | * @param string $path Without the trailing slash. |
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274 | * |
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275 | * @return bool Success |
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276 | */ |
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277 | public function registerPluginTranslations($path) { |
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278 | $languages_path = rtrim($path, "\\/") . "/languages"; |
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279 | |||
280 | // don't need to have translations |
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281 | if (!is_dir($languages_path)) { |
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282 | return true; |
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283 | } |
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284 | |||
285 | return $this->registerTranslations($languages_path); |
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286 | } |
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287 | |||
288 | /** |
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289 | * When given a full path, finds translation files and loads them |
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290 | * |
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291 | * @param string $path Full path |
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292 | * @param bool $load_all If true all languages are loaded, if |
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293 | * false only the current language + en are loaded |
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294 | * @param string $language Language code |
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295 | * |
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296 | * @return bool success |
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297 | */ |
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298 | public function registerTranslations($path, $load_all = false, $language = null) { |
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299 | $path = sanitise_filepath($path); |
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300 | |||
301 | // Make a note of this path just incase we need to register this language later |
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302 | if (!isset($GLOBALS['_ELGG']->language_paths)) { |
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303 | $GLOBALS['_ELGG']->language_paths = []; |
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304 | } |
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305 | $GLOBALS['_ELGG']->language_paths[$path] = true; |
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306 | |||
307 | _elgg_services()->logger->info("Translations loaded from: $path"); |
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308 | |||
309 | if ($language) { |
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310 | $load_language_files = ["$language.php"]; |
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311 | $load_all = false; |
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312 | } else { |
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313 | // Get the current language based on site defaults and user preference |
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314 | $current_language = $this->getCurrentLanguage(); |
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315 | |||
316 | $load_language_files = [ |
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317 | 'en.php', |
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318 | "$current_language.php" |
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319 | ]; |
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320 | |||
321 | $load_language_files = array_unique($load_language_files); |
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322 | } |
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323 | |||
324 | $handle = opendir($path); |
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325 | if (!$handle) { |
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326 | _elgg_services()->logger->error("Could not open language path: $path"); |
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327 | return false; |
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328 | } |
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329 | |||
330 | $return = true; |
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331 | while (false !== ($language_file = readdir($handle))) { |
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332 | // ignore bad files |
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333 | if (substr($language_file, 0, 1) == '.' || substr($language_file, -4) !== '.php') { |
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334 | continue; |
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335 | } |
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336 | |||
337 | if (in_array($language_file, $load_language_files) || $load_all) { |
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338 | $result = include_once($path . $language_file); |
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339 | if ($result === false) { |
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340 | $return = false; |
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341 | continue; |
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342 | } elseif (is_array($result)) { |
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343 | $this->addTranslation(basename($language_file, '.php'), $result); |
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344 | } |
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345 | } |
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346 | } |
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347 | |||
348 | return $return; |
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349 | } |
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350 | |||
351 | /** |
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352 | * Reload all translations from all registered paths. |
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353 | * |
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354 | * This is only called by functions which need to know all possible translations. |
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355 | * |
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356 | * @todo Better on demand loading based on language_paths array |
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357 | * |
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358 | * @return void |
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359 | */ |
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360 | public function reloadAllTranslations() { |
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361 | static $was_already_called; |
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362 | if ($was_already_called) { |
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363 | return; |
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364 | } |
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365 | |||
366 | if (!empty($GLOBALS['_ELGG']->i18n_loaded_from_cache)) { |
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367 | $cache = elgg_get_system_cache(); |
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368 | $cache_dir = $cache->getVariable("cache_path"); |
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369 | $filenames = elgg_get_file_list($cache_dir, [], [], [".lang"]); |
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370 | foreach ($filenames as $filename) { |
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371 | // Look for files matching for example 'en.lang', 'cmn.lang' or 'pt_br.lang'. |
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372 | // Note that this regex is just for the system cache. The original language |
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373 | // files are allowed to have uppercase letters (e.g. pt_BR.php). |
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374 | if (preg_match('/(([a-z]{2,3})(_[a-z]{2})?)\.lang$/', $filename, $matches)) { |
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375 | $language = $matches[1]; |
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376 | $data = elgg_load_system_cache("$language.lang"); |
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377 | if ($data) { |
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378 | $this->addTranslation($language, unserialize($data)); |
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379 | } |
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380 | } |
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381 | } |
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382 | } else { |
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383 | foreach ($GLOBALS['_ELGG']->language_paths as $path => $dummy) { |
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384 | $this->registerTranslations($path, true); |
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385 | } |
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386 | } |
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387 | |||
388 | $was_already_called = true; |
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389 | } |
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390 | |||
391 | /** |
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392 | * Return an array of installed translations as an associative |
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393 | * array "two letter code" => "native language name". |
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394 | * |
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395 | * @return array |
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396 | */ |
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397 | public function getInstalledTranslations() { |
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398 | |||
399 | |||
400 | // Ensure that all possible translations are loaded |
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401 | $this->reloadAllTranslations(); |
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402 | |||
403 | $installed = []; |
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404 | |||
405 | $admin_logged_in = _elgg_services()->session->isAdminLoggedIn(); |
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406 | |||
407 | foreach ($GLOBALS['_ELGG']->translations as $k => $v) { |
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408 | if ($this->languageKeyExists($k, $k)) { |
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409 | $lang = $this->translate($k, [], $k); |
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410 | } else { |
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411 | $lang = $this->translate($k); |
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412 | } |
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413 | |||
414 | $installed[$k] = $lang; |
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415 | |||
416 | if (!$admin_logged_in || ($k === 'en')) { |
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417 | continue; |
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418 | } |
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419 | |||
420 | $completeness = $this->getLanguageCompleteness($k); |
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421 | if ($completeness < 100) { |
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422 | $installed[$k] .= " (" . $completeness . "% " . $this->translate('complete') . ")"; |
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423 | } |
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424 | } |
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425 | |||
426 | return $installed; |
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427 | } |
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428 | |||
429 | /** |
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430 | * Return the level of completeness for a given language code (compared to english) |
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431 | * |
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432 | * @param string $language Language |
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433 | * |
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434 | * @return int |
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435 | */ |
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436 | public function getLanguageCompleteness($language) { |
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437 | |||
438 | |||
439 | // Ensure that all possible translations are loaded |
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440 | $this->reloadAllTranslations(); |
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441 | |||
442 | $language = sanitise_string($language); |
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443 | |||
444 | $en = count($GLOBALS['_ELGG']->translations['en']); |
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445 | |||
446 | $missing = $this->getMissingLanguageKeys($language); |
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447 | if ($missing) { |
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448 | $missing = count($missing); |
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449 | } else { |
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450 | $missing = 0; |
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451 | } |
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452 | |||
453 | //$lang = count($GLOBALS['_ELGG']->translations[$language]); |
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454 | $lang = $en - $missing; |
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455 | |||
456 | return round(($lang / $en) * 100, 2); |
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457 | } |
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458 | |||
459 | /** |
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460 | * Return the translation keys missing from a given language, |
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461 | * or those that are identical to the english version. |
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462 | * |
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463 | * @param string $language The language |
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464 | * |
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465 | * @return mixed |
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466 | */ |
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467 | public function getMissingLanguageKeys($language) { |
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468 | |||
469 | |||
470 | // Ensure that all possible translations are loaded |
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471 | $this->reloadAllTranslations(); |
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472 | |||
473 | $missing = []; |
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474 | |||
475 | foreach ($GLOBALS['_ELGG']->translations['en'] as $k => $v) { |
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476 | if ((!isset($GLOBALS['_ELGG']->translations[$language][$k])) |
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477 | || ($GLOBALS['_ELGG']->translations[$language][$k] == $GLOBALS['_ELGG']->translations['en'][$k])) { |
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478 | $missing[] = $k; |
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479 | } |
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480 | } |
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481 | |||
482 | if (count($missing)) { |
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483 | return $missing; |
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484 | } |
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485 | |||
486 | return false; |
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487 | } |
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488 | |||
489 | /** |
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490 | * Check if a given language key exists |
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491 | * |
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492 | * @param string $key The translation key |
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493 | * @param string $language The specific language to check |
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494 | * |
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495 | * @return bool |
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496 | * @since 1.11 |
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497 | */ |
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498 | 20 | function languageKeyExists($key, $language = 'en') { |
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499 | 20 | if (empty($key)) { |
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500 | return false; |
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501 | } |
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502 | |||
503 | 20 | $this->ensureTranslationsLoaded($language); |
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504 | |||
505 | 20 | if (!array_key_exists($language, $GLOBALS['_ELGG']->translations)) { |
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506 | return false; |
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507 | } |
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508 | |||
509 | 20 | return array_key_exists($key, $GLOBALS['_ELGG']->translations[$language]); |
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510 | } |
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511 | |||
512 | /** |
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513 | * Make sure translations are loaded |
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514 | * |
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515 | * @param string $language Language |
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516 | * @return void |
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517 | */ |
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518 | 43 | private function ensureTranslationsLoaded($language) { |
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519 | 43 | if (!isset($GLOBALS['_ELGG']->translations)) { |
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520 | // this means we probably had an exception before translations were initialized |
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521 | $this->registerTranslations($this->defaultPath); |
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522 | } |
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523 | |||
524 | 43 | if (!isset($GLOBALS['_ELGG']->translations[$language])) { |
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525 | // The language being requested is not the same as the language of the |
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526 | // logged in user, so we will have to load it separately. (Most likely |
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527 | // we're sending a notification and the recipient is using a different |
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528 | // language than the logged in user.) |
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529 | $this->loadTranslations($language); |
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530 | } |
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531 | 43 | } |
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532 | |||
533 | /** |
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534 | * Returns an array of language codes. |
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535 | * |
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536 | * @return array |
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537 | */ |
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538 | public static function getAllLanguageCodes() { |
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539 | return [ |
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540 | "aa", // "Afar" |
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541 | "ab", // "Abkhazian" |
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542 | "af", // "Afrikaans" |
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543 | "am", // "Amharic" |
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544 | "ar", // "Arabic" |
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545 | "as", // "Assamese" |
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546 | "ay", // "Aymara" |
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547 | "az", // "Azerbaijani" |
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548 | "ba", // "Bashkir" |
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549 | "be", // "Byelorussian" |
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550 | "bg", // "Bulgarian" |
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551 | "bh", // "Bihari" |
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552 | "bi", // "Bislama" |
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553 | "bn", // "Bengali; Bangla" |
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554 | "bo", // "Tibetan" |
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555 | "br", // "Breton" |
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556 | "ca", // "Catalan" |
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557 | "cmn", // "Mandarin Chinese" // ISO 639-3 |
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558 | "co", // "Corsican" |
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559 | "cs", // "Czech" |
||
560 | "cy", // "Welsh" |
||
561 | "da", // "Danish" |
||
562 | "de", // "German" |
||
563 | "dz", // "Bhutani" |
||
564 | "el", // "Greek" |
||
565 | "en", // "English" |
||
566 | "eo", // "Esperanto" |
||
567 | "es", // "Spanish" |
||
568 | "et", // "Estonian" |
||
569 | "eu", // "Basque" |
||
570 | "eu_es", // "Basque (Spain)" |
||
571 | "fa", // "Persian" |
||
572 | "fi", // "Finnish" |
||
573 | "fj", // "Fiji" |
||
574 | "fo", // "Faeroese" |
||
575 | "fr", // "French" |
||
576 | "fy", // "Frisian" |
||
577 | "ga", // "Irish" |
||
578 | "gd", // "Scots / Gaelic" |
||
579 | "gl", // "Galician" |
||
580 | "gn", // "Guarani" |
||
581 | "gu", // "Gujarati" |
||
582 | "he", // "Hebrew" |
||
583 | "ha", // "Hausa" |
||
584 | "hi", // "Hindi" |
||
585 | "hr", // "Croatian" |
||
586 | "hu", // "Hungarian" |
||
587 | "hy", // "Armenian" |
||
588 | "ia", // "Interlingua" |
||
589 | "id", // "Indonesian" |
||
590 | "ie", // "Interlingue" |
||
591 | "ik", // "Inupiak" |
||
592 | "is", // "Icelandic" |
||
593 | "it", // "Italian" |
||
594 | "iu", // "Inuktitut" |
||
595 | "iw", // "Hebrew (obsolete)" |
||
596 | "ja", // "Japanese" |
||
597 | "ji", // "Yiddish (obsolete)" |
||
598 | "jw", // "Javanese" |
||
599 | "ka", // "Georgian" |
||
600 | "kk", // "Kazakh" |
||
601 | "kl", // "Greenlandic" |
||
602 | "km", // "Cambodian" |
||
603 | "kn", // "Kannada" |
||
604 | "ko", // "Korean" |
||
605 | "ks", // "Kashmiri" |
||
606 | "ku", // "Kurdish" |
||
607 | "ky", // "Kirghiz" |
||
608 | "la", // "Latin" |
||
609 | "ln", // "Lingala" |
||
610 | "lo", // "Laothian" |
||
611 | "lt", // "Lithuanian" |
||
612 | "lv", // "Latvian/Lettish" |
||
613 | "mg", // "Malagasy" |
||
614 | "mi", // "Maori" |
||
615 | "mk", // "Macedonian" |
||
616 | "ml", // "Malayalam" |
||
617 | "mn", // "Mongolian" |
||
618 | "mo", // "Moldavian" |
||
619 | "mr", // "Marathi" |
||
620 | "ms", // "Malay" |
||
621 | "mt", // "Maltese" |
||
622 | "my", // "Burmese" |
||
623 | "na", // "Nauru" |
||
624 | "ne", // "Nepali" |
||
625 | "nl", // "Dutch" |
||
626 | "no", // "Norwegian" |
||
627 | "oc", // "Occitan" |
||
628 | "om", // "(Afan) Oromo" |
||
629 | "or", // "Oriya" |
||
630 | "pa", // "Punjabi" |
||
631 | "pl", // "Polish" |
||
632 | "ps", // "Pashto / Pushto" |
||
633 | "pt", // "Portuguese" |
||
634 | "pt_br", // "Portuguese (Brazil)" |
||
635 | "qu", // "Quechua" |
||
636 | "rm", // "Rhaeto-Romance" |
||
637 | "rn", // "Kirundi" |
||
638 | "ro", // "Romanian" |
||
639 | "ro_ro", // "Romanian (Romania)" |
||
640 | "ru", // "Russian" |
||
641 | "rw", // "Kinyarwanda" |
||
642 | "sa", // "Sanskrit" |
||
643 | "sd", // "Sindhi" |
||
644 | "sg", // "Sangro" |
||
645 | "sh", // "Serbo-Croatian" |
||
646 | "si", // "Singhalese" |
||
647 | "sk", // "Slovak" |
||
648 | "sl", // "Slovenian" |
||
649 | "sm", // "Samoan" |
||
650 | "sn", // "Shona" |
||
651 | "so", // "Somali" |
||
652 | "sq", // "Albanian" |
||
653 | "sr", // "Serbian" |
||
654 | "sr_latin", // "Serbian (Latin)" |
||
655 | "ss", // "Siswati" |
||
656 | "st", // "Sesotho" |
||
657 | "su", // "Sundanese" |
||
658 | "sv", // "Swedish" |
||
659 | "sw", // "Swahili" |
||
660 | "ta", // "Tamil" |
||
661 | "te", // "Tegulu" |
||
662 | "tg", // "Tajik" |
||
663 | "th", // "Thai" |
||
664 | "ti", // "Tigrinya" |
||
665 | "tk", // "Turkmen" |
||
666 | "tl", // "Tagalog" |
||
667 | "tn", // "Setswana" |
||
668 | "to", // "Tonga" |
||
669 | "tr", // "Turkish" |
||
670 | "ts", // "Tsonga" |
||
671 | "tt", // "Tatar" |
||
672 | "tw", // "Twi" |
||
673 | "ug", // "Uigur" |
||
674 | "uk", // "Ukrainian" |
||
675 | "ur", // "Urdu" |
||
676 | "uz", // "Uzbek" |
||
677 | "vi", // "Vietnamese" |
||
678 | "vo", // "Volapuk" |
||
679 | "wo", // "Wolof" |
||
680 | "xh", // "Xhosa" |
||
681 | "yi", // "Yiddish" |
||
682 | "yo", // "Yoruba" |
||
683 | "za", // "Zuang" |
||
684 | "zh", // "Chinese" |
||
685 | "zh_hans", // "Chinese Simplified" |
||
686 | "zu", // "Zulu" |
||
687 | ]; |
||
688 | } |
||
689 | |||
690 | /** |
||
691 | * Normalize a language code (e.g. from Transifex) |
||
692 | * |
||
693 | * @param string $code Language code |
||
694 | * |
||
695 | * @return string |
||
696 | */ |
||
697 | public static function normalizeLanguageCode($code) { |
||
698 | $code = strtolower($code); |
||
699 | $code = preg_replace('~[^a-z0-9]~', '_', $code); |
||
700 | return $code; |
||
701 | } |
||
702 | } |
||
703 |
In PHP, under loose comparison (like
==
, or!=
, orswitch
conditions), values of different types might be equal.For
string
values, the empty string''
is a special case, in particular the following results might be unexpected: