web-base/core/Objects/Language.class.php

<?php

namespace Objects;

class Language extends ApiObject {

  const LANG_CODE_PATTERN = "/^[a-zA-Z]+_[a-zA-Z]+$/";

  private $languageId;
  private $langCode;
  private $langName;
  private $modules;

  protected $entries;

  public function __construct($languageId, $langCode, $langName) {
    $this->languageId = $languageId;
    $this->langCode = $langCode;
    $this->langName = $langName;
    $this->entries = array();
    $this->modules = array();
  }

  public function getId() { return $this->languageId; }
  public function getCode() { return $this->langCode; }
  public function getShortCode() { return substr($this->langCode, 0, 2); }
  public function getName() { return $this->langName; }
  public function getIconPath() { return "/img/icons/lang/$this->langCode.gif"; }
  public function getEntries() { return $this->entries; }
  public function getModules() { return $this->modules; }

  public function loadModule($module) {
    if(!is_object($module))
      $module = new $module;

    $aModuleEntries = $module->getEntries($this->langCode);
    $this->entries = array_merge($this->entries, $aModuleEntries);
    $this->modules[] = $module;
  }

  public function translate($key) {
    if(isset($this->entries[$key]))
      return $this->entries[$key];

    return $key;
  }

  public function sendCookie() {
    setcookie('lang', $this->langCode, 0, "/", "");
  }

  public function jsonSerialize() {
    return array(
      'uid' => $this->languageId,
      'code' => $this->langCode,
      'name' => $this->langName,
    );
  }

  public static function newInstance($languageId, $langCode, $langName) {

    if(!preg_match(Language::LANG_CODE_PATTERN, $langCode)) {
      return false;
    }

    // TODO: include dynamically wanted Language
    return new Language($languageId, $langCode, $langName);

    // $className = $langCode
    // return new $className($languageId, $langCode);
  }

  public function load() {
    global $LANGUAGE;
    $LANGUAGE = $this;
  }

  public static function DEFAULT_LANGUAGE() {
    if(isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
      $acceptLanguage = $_SERVER['HTTP_ACCEPT_LANGUAGE'];
      $aSplit = explode(',',$acceptLanguage);
      foreach($aSplit as $code) {
        if(strlen($code) == 2) {
          $code = $code . '_' . strtoupper($code);
        }

        $code = str_replace("-", "_", $code);
        if(strlen($code) != 5)
          continue;

        $lang = Language::newInstance(0, $code, "");
        if($lang)
          return $lang;
      }
    }

    return Language::newInstance(1, "en_US", "American English");
  }
};

function L($key) {
  if(!array_key_exists('LANGUAGE', $GLOBALS))
    return $key;

  global $LANGUAGE;
  return $LANGUAGE->translate($key);
}

function LANG_NAME() {
  if(!array_key_exists('LANGUAGE', $GLOBALS))
    return "LANG_NAME";

  global $LANGUAGE;
  return $LANGUAGE->getName();
}

function LANG_CODE() {
  if(!array_key_exists('LANGUAGE', $GLOBALS))
    return "LANG_CODE";

  global $LANGUAGE;
  return $LANGUAGE->getCode();
}

function SHORT_LANG_CODE() {
  if(!array_key_exists('LANGUAGE', $GLOBALS))
    return "SHORT_LANG_CODE";

  global $LANGUAGE;
  return $LANGUAGE->getShortCode();
}

?>