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1 <?php 2 // $Id: locale.module,v 1.212.2.11 2010/12/06 06:50:56 goba Exp $ 3 4 /** 5 * @file 6 * Add language handling functionality and enables the translation of the 7 * user interface to languages other than English. 8 * 9 * When enabled, multiple languages can be set up. The site interface 10 * can be displayed in different languages, as well as nodes can have languages 11 * assigned. The setup of languages and translations is completely web based. 12 * Gettext portable object files are supported. 13 */ 14 15 // --------------------------------------------------------------------------------- 16 // Hook implementations 17 18 /** 19 * Implementation of hook_help(). 20 */ 21 function locale_help($path, $arg) { 22 switch ($path) { 23 case 'admin/help#locale': 24 $output = '<p>'. t('The locale module allows your Drupal site to be presented in languages other than the default English, a defining feature of multi-lingual websites. The locale module works by examining text as it is about to be displayed: when a translation of the text is available in the language to be displayed, the translation is displayed rather than the original text. When a translation is unavailable, the original text is displayed, and then stored for later review by a translator.') .'</p>'; 25 $output .= '<p>'. t('Beyond translation of the Drupal interface, the locale module provides a feature set tailored to the needs of a multi-lingual site. Language negotiation allows your site to automatically change language based on the domain or path used for each request. Users may (optionally) select their preferred language on their <em>My account</em> page, and your site can be configured to honor a web browser\'s preferred language settings. Your site content can be created in (and translated to) any enabled language, and each post may have a language-appropriate alias for each of its translations. The locale module works in concert with the <a href="@content-help">content translation module</a> to manage translated content.', array('@content-help' => url('admin/help/translation'))) .'</p>'; 26 $output .= '<p>'. t('Translations may be provided by:') .'</p>'; 27 $output .= '<ul><li>'. t("translating the original text via the locale module's integrated web interface, or") .'</li>'; 28 $output .= '<li>'. t('importing files from a set of existing translations, known as a translation package. A translation package enables the display of a specific version of Drupal in a specific language, and contain files in the Gettext Portable Object (<em>.po</em>) format. Although not all languages are available for every version of Drupal, translation packages for many languages are available for download from the <a href="@translations">Drupal translation page</a>.', array('@translations' => 'http://localize.drupal.org')) .'</li></ul>'; 29 $output .= '<p>'. t('If an existing translation package does not meet your needs, the Gettext Portable Object (<em>.po</em>) files within a package may be modified, or new <em>.po</em> files may be created, using a desktop Gettext editor. The locale module\'s <a href="@import">import</a> feature allows the translated strings from a new or modified <em>.po</em> file to be added to your site. The locale module\'s <a href="@export">export</a> feature generates files from your site\'s translated strings, that can either be shared with others or edited offline by a Gettext translation editor.', array('@import' => url('admin/build/translate/import'), '@export' => url('admin/build/translate/export'))) .'</p>'; 30 $output .= '<p>'. t('For more information, see the online handbook entry for <a href="@locale">Locale module</a>.', array('@locale' => 'http://drupal.org/handbook/modules/locale/')) .'</p>'; 31 return $output; 32 case 'admin/settings/language': 33 $output = '<p>'. t("This page provides an overview of your site's enabled languages. If multiple languages are available and enabled, the text on your site interface may be translated, registered users may select their preferred language on the <em>My account</em> page, and site authors may indicate a specific language when creating posts. The site's default language is used for anonymous visitors and for users who have not selected a preferred language.") .'</p>'; 34 $output .= '<p>'. t('For each language available on the site, use the <em>edit</em> link to configure language details, including name, an optional language-specific path or domain, and whether the language is natively presented either left-to-right or right-to-left. These languages also appear in the <em>Language</em> selection when creating a post of a content type with multilingual support.') .'</p>'; 35 $output .= '<p>'. t('Use the <a href="@add-language">add language page</a> to enable additional languages (and automatically import files from a translation package, if available), the <a href="@search">translate interface page</a> to locate strings for manual translation, or the <a href="@import">import page</a> to add translations from individual <em>.po</em> files. A number of contributed translation packages containing <em>.po</em> files are available on the <a href="@translations">Drupal.org translations page</a>.', array('@add-language' => url('admin/settings/language/add'), '@search' => url('admin/build/translate/search'), '@import' => url('admin/build/translate/import'), '@translations' => 'http://localize.drupal.org')) .'</p>'; 36 return $output; 37 case 'admin/settings/language/add': 38 return '<p>'. t('Add all languages to be supported by your site. If your desired language is not available in the <em>Language name</em> drop-down, click <em>Custom language</em> and provide a language code and other details manually. When providing a language code manually, be sure to enter a standardized language code, since this code may be used by browsers to determine an appropriate display language.') .'</p>'; 39 case 'admin/settings/language/configure': 40 $output = '<p>'. t("Language negotiation settings determine the site's presentation language. Available options include:") .'</p>'; 41 $output .= '<ul><li>'. t('<strong>None.</strong> The default language is used for site presentation, though users may (optionally) select a preferred language on the <em>My Account</em> page. (User language preferences will be used for site e-mails, if available.)') .'</li>'; 42 $output .= '<li>'. t('<strong>Path prefix only.</strong> The presentation language is determined by examining the path for a language code or other custom string that matches the path prefix (if any) specified for each language. If a suitable prefix is not identified, the default language is used. <em>Example: "example.com/de/contact" sets presentation language to German based on the use of "de" within the path.</em>') .'</li>'; 43 $output .= '<li>'. t("<strong>Path prefix with language fallback.</strong> The presentation language is determined by examining the path for a language code or other custom string that matches the path prefix (if any) specified for each language. If a suitable prefix is not identified, the display language is determined by the user's language preferences from the <em>My Account</em> page, or by the browser's language settings. If a presentation language cannot be determined, the default language is used.") .'</li>'; 44 $output .= '<li>'. t('<strong>Domain name only.</strong> The presentation language is determined by examining the domain used to access the site, and comparing it to the language domain (if any) specified for each language. If a match is not identified, the default language is used. <em>Example: "http://de.example.com/contact" sets presentation language to German based on the use of "http://de.example.com" in the domain.</em>') .'</li></ul>'; 45 $output .= '<p>'. t('The path prefix or domain name for a language may be set by editing the <a href="@languages">available languages</a>. In the absence of an appropriate match, the site is displayed in the <a href="@languages">default language</a>.', array('@languages' => url('admin/settings/language'))) .'</p>'; 46 return $output; 47 case 'admin/build/translate': 48 $output = '<p>'. t('This page provides an overview of available translatable strings. Drupal displays translatable strings in text groups; modules may define additional text groups containing other translatable strings. Because text groups provide a method of grouping related strings, they are often used to focus translation efforts on specific areas of the Drupal interface.') .'</p>'; 49 $output .= '<p>'. t('Review the <a href="@languages">languages page</a> for more information on adding support for additional languages.', array('@languages' => url('admin/settings/language'))) .'</p>'; 50 return $output; 51 case 'admin/build/translate/import': 52 $output = '<p>'. t('This page imports the translated strings contained in an individual Gettext Portable Object (<em>.po</em>) file. Normally distributed as part of a translation package (each translation package may contain several <em>.po</em> files), a <em>.po</em> file may need to be imported after off-line editing in a Gettext translation editor. Importing an individual <em>.po</em> file may be a lengthy process.') .'</p>'; 53 $output .= '<p>'. t('Note that the <em>.po</em> files within a translation package are imported automatically (if available) when new modules or themes are enabled, or as new languages are added. Since this page only allows the import of one <em>.po</em> file at a time, it may be simpler to download and extract a translation package into your Drupal installation directory and <a href="@language-add">add the language</a> (which automatically imports all <em>.po</em> files within the package). Translation packages are available for download on the <a href="@translations">Drupal translation page</a>.', array('@language-add' => url('admin/settings/language/add'), '@translations' => 'http://localize.drupal.org')) .'</p>'; 54 return $output; 55 case 'admin/build/translate/export': 56 return '<p>'. t('This page exports the translated strings used by your site. An export file may be in Gettext Portable Object (<em>.po</em>) form, which includes both the original string and the translation (used to share translations with others), or in Gettext Portable Object Template (<em>.pot</em>) form, which includes the original strings only (used to create new translations with a Gettext translation editor).') .'</p>'; 57 case 'admin/build/translate/search': 58 return '<p>'. t('This page allows a translator to search for specific translated and untranslated strings, and is used when creating or editing translations. (Note: For translation tasks involving many strings, it may be more convenient to <a href="@export">export</a> strings for off-line editing in a desktop Gettext translation editor.) Searches may be limited to strings found within a specific text group or in a specific language.', array('@export' => url('admin/build/translate/export'))) .'</p>'; 59 case 'admin/build/block/configure': 60 if ($arg[4] == 'locale' && $arg[5] == 0) { 61 return '<p>'. t('This block is only shown if <a href="@languages">at least two languages are enabled</a> and <a href="@configuration">language negotiation</a> is set to something other than <em>None</em>.', array('@languages' => url('admin/settings/language'), '@configuration' => url('admin/settings/language/configure'))) .'</p>'; 62 } 63 break; 64 } 65 } 66 67 /** 68 * Implementation of hook_menu(). 69 * 70 * Locale module only provides administrative menu items, so all 71 * menu items are invoked through locale_inc_callback(). 72 */ 73 function locale_menu() { 74 // Manage languages 75 $items['admin/settings/language'] = array( 76 'title' => 'Languages', 77 'description' => 'Configure languages for content and the user interface.', 78 'page callback' => 'locale_inc_callback', 79 'page arguments' => array('drupal_get_form', 'locale_languages_overview_form'), 80 'access arguments' => array('administer languages'), 81 ); 82 $items['admin/settings/language/overview'] = array( 83 'title' => 'List', 84 'weight' => 0, 85 'type' => MENU_DEFAULT_LOCAL_TASK, 86 ); 87 $items['admin/settings/language/add'] = array( 88 'title' => 'Add language', 89 'page callback' => 'locale_inc_callback', 90 'page arguments' => array('locale_languages_add_screen'), // two forms concatenated 91 'access arguments' => array('administer languages'), 92 'weight' => 5, 93 'type' => MENU_LOCAL_TASK, 94 ); 95 $items['admin/settings/language/configure'] = array( 96 'title' => 'Configure', 97 'page callback' => 'locale_inc_callback', 98 'page arguments' => array('drupal_get_form', 'locale_languages_configure_form'), 99 'access arguments' => array('administer languages'), 100 'weight' => 10, 101 'type' => MENU_LOCAL_TASK, 102 ); 103 $items['admin/settings/language/edit/%'] = array( 104 'title' => 'Edit language', 105 'page callback' => 'locale_inc_callback', 106 'page arguments' => array('drupal_get_form', 'locale_languages_edit_form', 4), 107 'access arguments' => array('administer languages'), 108 'type' => MENU_CALLBACK, 109 ); 110 $items['admin/settings/language/delete/%'] = array( 111 'title' => 'Confirm', 112 'page callback' => 'locale_inc_callback', 113 'page arguments' => array('drupal_get_form', 'locale_languages_delete_form', 4), 114 'access arguments' => array('administer languages'), 115 'type' => MENU_CALLBACK, 116 ); 117 118 // Translation functionality 119 $items['admin/build/translate'] = array( 120 'title' => 'Translate interface', 121 'description' => 'Translate the built in interface and optionally other text.', 122 'page callback' => 'locale_inc_callback', 123 'page arguments' => array('locale_translate_overview_screen'), // not a form, just a table 124 'access arguments' => array('translate interface'), 125 ); 126 $items['admin/build/translate/overview'] = array( 127 'title' => 'Overview', 128 'weight' => 0, 129 'type' => MENU_DEFAULT_LOCAL_TASK, 130 ); 131 $items['admin/build/translate/search'] = array( 132 'title' => 'Search', 133 'weight' => 10, 134 'type' => MENU_LOCAL_TASK, 135 'page callback' => 'locale_inc_callback', 136 'page arguments' => array('locale_translate_seek_screen'), // search results and form concatenated 137 'access arguments' => array('translate interface'), 138 ); 139 $items['admin/build/translate/import'] = array( 140 'title' => 'Import', 141 'page callback' => 'locale_inc_callback', 142 'page arguments' => array('drupal_get_form', 'locale_translate_import_form'), 143 'access arguments' => array('translate interface'), 144 'weight' => 20, 145 'type' => MENU_LOCAL_TASK, 146 ); 147 $items['admin/build/translate/export'] = array( 148 'title' => 'Export', 149 'page callback' => 'locale_inc_callback', 150 'page arguments' => array('locale_translate_export_screen'), // possibly multiple forms concatenated 151 'access arguments' => array('translate interface'), 152 'weight' => 30, 153 'type' => MENU_LOCAL_TASK, 154 ); 155 $items['admin/build/translate/edit/%'] = array( 156 'title' => 'Edit string', 157 'page callback' => 'locale_inc_callback', 158 'page arguments' => array('drupal_get_form', 'locale_translate_edit_form', 4), 159 'access arguments' => array('translate interface'), 160 'type' => MENU_CALLBACK, 161 ); 162 $items['admin/build/translate/delete/%'] = array( 163 'title' => 'Delete string', 164 'page callback' => 'locale_inc_callback', 165 'page arguments' => array('locale_translate_delete_page', 4), 166 'access arguments' => array('translate interface'), 167 'type' => MENU_CALLBACK, 168 ); 169 170 return $items; 171 } 172 173 /** 174 * Wrapper function to be able to set callbacks in locale.inc 175 */ 176 function locale_inc_callback() { 177 $args = func_get_args(); 178 $function = array_shift($args); 179 include_once './includes/locale.inc'; 180 return call_user_func_array($function, $args); 181 } 182 183 /** 184 * Implementation of hook_perm(). 185 */ 186 function locale_perm() { 187 return array('administer languages', 'translate interface'); 188 } 189 190 /** 191 * Implementation of hook_locale(). 192 */ 193 function locale_locale($op = 'groups') { 194 switch ($op) { 195 case 'groups': 196 return array('default' => t('Built-in interface')); 197 } 198 } 199 200 /** 201 * Implementation of hook_user(). 202 */ 203 function locale_user($type, $edit, &$user, $category = NULL) { 204 global $language; 205 206 // If we have more then one language and either creating a user on the 207 // admin interface or edit the user, show the language selector. 208 if (variable_get('language_count', 1) > 1 && ($type == 'register' && user_access('administer users') || $type == 'form' && $category == 'account' )) { 209 $languages = language_list('enabled'); 210 $languages = $languages[1]; 211 212 // If the user is being created, we set the user language to the page language. 213 $user_preferred_language = $user ? user_preferred_language($user) : $language; 214 215 $names = array(); 216 foreach ($languages as $langcode => $item) { 217 $name = t($item->name); 218 $names[check_plain($langcode)] = check_plain($name . ($item->native != $name ? ' ('. $item->native .')' : '')); 219 } 220 $form['locale'] = array( 221 '#type' => 'fieldset', 222 '#title' => t('Language settings'), 223 '#weight' => 1, 224 ); 225 226 // Get language negotiation settings. 227 $mode = variable_get('language_negotiation', LANGUAGE_NEGOTIATION_NONE); 228 $form['locale']['language'] = array( 229 '#type' => (count($names) <= 5 ? 'radios' : 'select'), 230 '#title' => t('Language'), 231 '#default_value' => check_plain($user_preferred_language->language), 232 '#options' => $names, 233 '#description' => ($mode == LANGUAGE_NEGOTIATION_PATH) ? t("This account's default language for e-mails, and preferred language for site presentation.") : t("This account's default language for e-mails."), 234 ); 235 return $form; 236 } 237 } 238 239 /** 240 * Implementation of hook_form_alter(). Adds language fields to forms. 241 */ 242 function locale_form_alter(&$form, $form_state, $form_id) { 243 switch ($form_id) { 244 245 // Language field for paths 246 case 'path_admin_form': 247 $form['language'] = array( 248 '#type' => 'select', 249 '#title' => t('Language'), 250 '#options' => array('' => t('All languages')) + locale_language_list('name'), 251 '#default_value' => $form['language']['#value'], 252 '#weight' => -10, 253 '#description' => t('A path alias set for a specific language will always be used when displaying this page in that language, and takes precedence over path aliases set for <em>All languages</em>.'), 254 ); 255 break; 256 257 // Language setting for content types 258 case 'node_type_form': 259 if (isset($form['identity']['type'])) { 260 $form['workflow']['language_content_type'] = array( 261 '#type' => 'radios', 262 '#title' => t('Multilingual support'), 263 '#default_value' => variable_get('language_content_type_'. $form['#node_type']->type, 0), 264 '#options' => array(t('Disabled'), t('Enabled')), 265 '#description' => t('Enable multilingual support for this content type. If enabled, a language selection field will be added to the editing form, allowing you to select from one of the <a href="!languages">enabled languages</a>. If disabled, new posts are saved with the default language. Existing content will not be affected by changing this option.', array('!languages' => url('admin/settings/language'))), 266 ); 267 } 268 break; 269 270 // Language field for nodes 271 default: 272 if (isset($form['#id']) && $form['#id'] == 'node-form') { 273 if (isset($form['#node']->type) && variable_get('language_content_type_'. $form['#node']->type, 0)) { 274 $form['language'] = array( 275 '#type' => 'select', 276 '#title' => t('Language'), 277 '#default_value' => (isset($form['#node']->language) ? $form['#node']->language : ''), 278 '#options' => array('' => t('Language neutral')) + locale_language_list('name'), 279 ); 280 } 281 // Node type without language selector: assign the default for new nodes 282 elseif (!isset($form['#node']->nid)) { 283 $default = language_default(); 284 $form['language'] = array( 285 '#type' => 'value', 286 '#value' => $default->language 287 ); 288 } 289 } 290 } 291 } 292 293 /** 294 * Implementation of hook_theme() 295 */ 296 function locale_theme() { 297 return array( 298 'locale_languages_overview_form' => array( 299 'arguments' => array('form' => array()), 300 ), 301 ); 302 } 303 304 /** 305 * Implementation of hook_node_type(). 306 */ 307 function locale_node_type($op, $info) { 308 if ($op == 'delete') { 309 variable_del('language_content_type_'. $info->type); 310 } 311 } 312 313 // --------------------------------------------------------------------------------- 314 // Locale core functionality 315 316 /** 317 * Provides interface translation services. 318 * 319 * This function is called from t() to translate a string if needed. 320 * 321 * @param $string 322 * A string to look up translation for. If omitted, all the 323 * cached strings will be returned in all languages already 324 * used on the page. 325 * @param $langcode 326 * Language code to use for the lookup. 327 * @param $reset 328 * Set to TRUE to reset the in-memory cache. 329 */ 330 function locale($string = NULL, $langcode = NULL, $reset = FALSE) { 331 global $language; 332 static $locale_t; 333 334 if ($reset) { 335 // Reset in-memory cache. 336 $locale_t = NULL; 337 } 338 339 if (!isset($string)) { 340 // Return all cached strings if no string was specified 341 return $locale_t; 342 } 343 344 $langcode = isset($langcode) ? $langcode : $language->language; 345 346 // Store database cached translations in a static var. 347 if (!isset($locale_t[$langcode])) { 348 $locale_t[$langcode] = array(); 349 // Disabling the usage of string caching allows a module to watch for 350 // the exact list of strings used on a page. From a performance 351 // perspective that is a really bad idea, so we have no user 352 // interface for this. Be careful when turning this option off! 353 if (variable_get('locale_cache_strings', 1) == 1) { 354 if ($cache = cache_get('locale:'. $langcode, 'cache')) { 355 $locale_t[$langcode] = $cache->data; 356 } 357 elseif (lock_acquire('locale_cache_' . $langcode)) { 358 // Refresh database stored cache of translations for given language. 359 // We only store short strings used in current version, to improve 360 // performance and consume less memory. 361 $result = db_query("SELECT s.source, t.translation, t.language FROM {locales_source} s LEFT JOIN {locales_target} t ON s.lid = t.lid AND t.language = '%s' WHERE s.textgroup = 'default' AND s.version = '%s' AND LENGTH(s.source) < 75", $langcode, VERSION); 362 while ($data = db_fetch_object($result)) { 363 $locale_t[$langcode][$data->source] = (empty($data->translation) ? TRUE : $data->translation); 364 } 365 cache_set('locale:'. $langcode, $locale_t[$langcode]); 366 lock_release('locale_cache_' . $langcode); 367 } 368 } 369 } 370 371 // If we have the translation cached, skip checking the database 372 if (!isset($locale_t[$langcode][$string])) { 373 374 // We do not have this translation cached, so get it from the DB. 375 $translation = db_fetch_object(db_query("SELECT s.lid, t.translation, s.version FROM {locales_source} s LEFT JOIN {locales_target} t ON s.lid = t.lid AND t.language = '%s' WHERE s.source = '%s' AND s.textgroup = 'default'", $langcode, $string)); 376 if ($translation) { 377 // We have the source string at least. 378 // Cache translation string or TRUE if no translation exists. 379 $locale_t[$langcode][$string] = (empty($translation->translation) ? TRUE : $translation->translation); 380 381 if ($translation->version != VERSION) { 382 // This is the first use of this string under current Drupal version. Save version 383 // and clear cache, to include the string into caching next time. Saved version is 384 // also a string-history information for later pruning of the tables. 385 db_query("UPDATE {locales_source} SET version = '%s' WHERE lid = %d", VERSION, $translation->lid); 386 cache_clear_all('locale:', 'cache', TRUE); 387 } 388 } 389 else { 390 // We don't have the source string, cache this as untranslated. 391 db_query("INSERT INTO {locales_source} (location, source, textgroup, version) VALUES ('%s', '%s', 'default', '%s')", request_uri(), $string, VERSION); 392 $locale_t[$langcode][$string] = TRUE; 393 // Clear locale cache so this string can be added in a later request. 394 cache_clear_all('locale:', 'cache', TRUE); 395 } 396 } 397 398 return ($locale_t[$langcode][$string] === TRUE ? $string : $locale_t[$langcode][$string]); 399 } 400 401 /** 402 * Returns plural form index for a specific number. 403 * 404 * The index is computed from the formula of this language. 405 * 406 * @param $count 407 * Number to return plural for. 408 * @param $langcode 409 * Optional language code to translate to a language other than 410 * what is used to display the page. 411 */ 412 function locale_get_plural($count, $langcode = NULL) { 413 global $language; 414 static $locale_formula, $plurals = array(); 415 416 $langcode = $langcode ? $langcode : $language->language; 417 418 if (!isset($plurals[$langcode][$count])) { 419 if (!isset($locale_formula)) { 420 $language_list = language_list(); 421 $locale_formula[$langcode] = $language_list[$langcode]->formula; 422 } 423 if ($locale_formula[$langcode]) { 424 $n = $count; 425 $plurals[$langcode][$count] = @eval('return intval('. $locale_formula[$langcode] .');'); 426 return $plurals[$langcode][$count]; 427 } 428 else { 429 $plurals[$langcode][$count] = -1; 430 return -1; 431 } 432 } 433 return $plurals[$langcode][$count]; 434 } 435 436 437 /** 438 * Returns a language name 439 */ 440 function locale_language_name($lang) { 441 static $list = NULL; 442 if (!isset($list)) { 443 $list = locale_language_list(); 444 } 445 return ($lang && isset($list[$lang])) ? $list[$lang] : t('All'); 446 } 447 448 /** 449 * Returns array of language names 450 * 451 * @param $field 452 * 'name' => names in current language, localized 453 * 'native' => native names 454 * @param $all 455 * Boolean to return all languages or only enabled ones 456 */ 457 function locale_language_list($field = 'name', $all = FALSE) { 458 if ($all) { 459 $languages = language_list(); 460 } 461 else { 462 $languages = language_list('enabled'); 463 $languages = $languages[1]; 464 } 465 $list = array(); 466 foreach ($languages as $language) { 467 $list[$language->language] = ($field == 'name') ? t($language->name) : $language->$field; 468 } 469 return $list; 470 } 471 472 /** 473 * Imports translations when new modules or themes are installed or enabled. 474 * 475 * This function will either import translation for the component change 476 * right away, or start a batch if more files need to be imported. 477 * 478 * @param $components 479 * An array of component (theme and/or module) names to import 480 * translations for. 481 */ 482 function locale_system_update($components) { 483 include_once 'includes/locale.inc'; 484 if ($batch = locale_batch_by_component($components)) { 485 batch_set($batch); 486 } 487 } 488 489 /** 490 * Update JavaScript translation file, if required, and add it to the page. 491 * 492 * This function checks all JavaScript files currently added via drupal_add_js() 493 * and invokes parsing if they have not yet been parsed for Drupal.t() 494 * and Drupal.formatPlural() calls. Also refreshes the JavaScript translation 495 * file if necessary, and adds it to the page. 496 */ 497 function locale_update_js_files() { 498 global $language; 499 500 $dir = file_create_path(variable_get('locale_js_directory', 'languages')); 501 $parsed = variable_get('javascript_parsed', array()); 502 503 // The first three parameters are NULL in order to get an array with all 504 // scopes. This is necessary to prevent recreation of JS translation files 505 // when new files are added for example in the footer. 506 $javascript = drupal_add_js(NULL, NULL, NULL); 507 $files = $new_files = FALSE; 508 509 foreach ($javascript as $scope) { 510 foreach ($scope as $type => $data) { 511 if ($type != 'setting' && $type != 'inline') { 512 foreach ($data as $filepath => $info) { 513 $files = TRUE; 514 if (!in_array($filepath, $parsed)) { 515 // Don't parse our own translations files. 516 if (substr($filepath, 0, strlen($dir)) != $dir) { 517 locale_inc_callback('_locale_parse_js_file', $filepath); 518 $parsed[] = $filepath; 519 $new_files = TRUE; 520 } 521 } 522 } 523 } 524 } 525 } 526 527 // If there are any new source files we parsed, invalidate existing 528 // JavaScript translation files for all languages, adding the refresh 529 // flags into the existing array. 530 if ($new_files) { 531 $parsed += locale_inc_callback('_locale_invalidate_js'); 532 } 533 534 // If necessary, rebuild the translation file for the current language. 535 if (!empty($parsed['refresh:'. $language->language])) { 536 // Don't clear the refresh flag on failure, so that another try will 537 // be performed later. 538 if (locale_inc_callback('_locale_rebuild_js')) { 539 unset($parsed['refresh:'. $language->language]); 540 } 541 // Store any changes after refresh was attempted. 542 variable_set('javascript_parsed', $parsed); 543 } 544 // If no refresh was attempted, but we have new source files, we need 545 // to store them too. This occurs if current page is in English. 546 else if ($new_files) { 547 variable_set('javascript_parsed', $parsed); 548 } 549 550 // Add the translation JavaScript file to the page. 551 if ($files && !empty($language->javascript)) { 552 drupal_add_js($dir .'/'. $language->language .'_'. $language->javascript .'.js', 'core'); 553 } 554 } 555 556 // --------------------------------------------------------------------------------- 557 // Language switcher block 558 559 /** 560 * Implementation of hook_block(). 561 * Displays a language switcher. Translation links may be provided by other modules. 562 */ 563 function locale_block($op = 'list', $delta = 0) { 564 if ($op == 'list') { 565 $block[0]['info'] = t('Language switcher'); 566 // Not worth caching. 567 $block[0]['cache'] = BLOCK_NO_CACHE; 568 return $block; 569 } 570 571 // Only show if we have at least two languages and language dependent 572 // web addresses, so we can actually link to other language versions. 573 elseif ($op == 'view' && variable_get('language_count', 1) > 1 && variable_get('language_negotiation', LANGUAGE_NEGOTIATION_NONE) != LANGUAGE_NEGOTIATION_NONE) { 574 $path = drupal_is_front_page() ? '<front>' : $_GET['q']; 575 $languages = language_list('enabled'); 576 $links = array(); 577 foreach ($languages[1] as $language) { 578 $links[$language->language] = array( 579 'href' => $path, 580 'title' => $language->native, 581 'language' => $language, 582 'attributes' => array('class' => 'language-link'), 583 ); 584 } 585 586 // Allow modules to provide translations for specific links. 587 // A translation link may need to point to a different path or use 588 // a translated link text before going through l(), which will just 589 // handle the path aliases. 590 drupal_alter('translation_link', $links, $path); 591 592 $block['subject'] = t('Languages'); 593 $block['content'] = theme('links', $links, array()); 594 return $block; 595 } 596 }
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| Generated: Thu Mar 24 11:18:33 2011 | Cross-referenced by PHPXref 0.7 |