WebSVN – lars-tiefland.prado – /framework/I18N/TGlobalization.php

<?php
/**
 * TGlobalization class file.
 *
 * @author Wei Zhuo<weizhuo[at]gmail[dot]com>
 * @link http://www.pradosoft.com/
 * @copyright Copyright &copy; 2005-2008 PradoSoft
 * @license http://www.pradosoft.com/license/
 * @version $Id: TGlobalization.php 2482 2008-07-30 02:07:13Z knut $
 * @package System.I18N
 */


/**
 * TGlobalization contains settings for Culture, Charset
 * and TranslationConfiguration.
 *
 * TGlobalization can be subclassed to change how the Culture, Charset
 * are determined. See TGlobalizationAutoDetect for example of
 * setting the Culture based on browser settings.
 *
 * @author Wei Zhuo<weizhuo[at]gmail[dot]com>
 * @version $Revision: 1.66 $  $Date: ${DATE} ${TIME} $
 * @package System.I18N
 * @since 3.0
 */
class TGlobalization extends TModule
{
        /**
         * Default character set is 'UTF-8'.
         * @var string
         */
        private $_defaultCharset = 'UTF-8';

        /**
         * Default culture is 'en'.
         * @var string
         */
        private $_defaultCulture = 'en';

        /**
         * The current charset.
         * @var string
         */
        private $_charset=null;

        /**
         * The current culture.
         * @var string
         */
        private $_culture=null;

        /**
         * Translation source parameters.
         * @var TMap
         */
        private $_translation;


        /**
         * Initialize the Culture and Charset for this application.
         * You should override this method if you want a different way of
         * setting the Culture and/or Charset for your application.
         * If you override this method, call parent::init($xml) first.
         * @param TXmlElement application configuration
         */
        public function init($xml)
        {
                if($this->_charset===null)
                        $this->_charset=$this->getDefaultCharset();
                if($this->_culture===null)
                        $this->_culture=$this->getDefaultCulture();

                if($xml!==null)
                {
                        $translation = $xml->getElementByTagName('translation');
                        if($translation)
                                $this->setTranslationConfiguration($translation->getAttributes());
                }
                $this->getApplication()->setGlobalization($this);
        }

        /**
         * @return string default culture
         */
        public function getDefaultCulture()
        {
                return $this->_defaultCulture;
        }

        /**
         * @param string default culture, e.g. <tt>en_US</tt> for American English
         */
        public function setDefaultCulture($culture)
        {
                $this->_defaultCulture = str_replace('-','_',$culture);
        }

        /**
         * @return string default charset set
         */
        public function getDefaultCharset()
        {
                return $this->_defaultCharset;
        }

        /**
         * @param string default localization charset, e.g. <tt>UTF-8</tt>
         */
        public function setDefaultCharset($charset)
        {
                $this->_defaultCharset = $charset;
        }

        /**
         * @return string current application culture
         */
        public function getCulture()
        {
                return $this->_culture;
        }

        /**
         * @param string culture, e.g. <tt>en_US</tt> for American English
         */
        public function setCulture($culture)
        {
                $this->_culture = str_replace('-','_',$culture);
        }

        /**
         * @return string localization charset
         */
        public function getCharset()
        {
                return $this->_charset;
        }

        /**
         * @param string localization charset, e.g. <tt>UTF-8</tt>
         */
        public function setCharset($charset)
        {
                $this->_charset = $charset;
        }

        /**
         * @return TMap translation source configuration.
         */
        public function getTranslationConfiguration()
        {
                return $this->_translation;
        }

        /**
         * Sets the translation configuration. Example configuration:
         * <code>
         * $config['type'] = 'XLIFF'; //XLIFF, gettext, Database or MySQL (deprecated)
         * $config['source'] = 'Path.to.directory'; // for types XLIFF and gettext
         * $config['source'] = 'connectionId'; // for type Database
         * $config['source'] = 'mysql://user:pw@host/db'; // for type MySQL (deprecated)
         * $config['catalogue'] = 'messages'; //default catalog
         * $config['autosave'] = 'true'; //save untranslated message
         * $config['cache'] = 'true'; //cache translated message
         * $config['marker'] = '@@'; // surround untranslated text with '@@'
         * </code>
         * Throws exception is source is not found.
         * @param TMap configuration options
         */
        protected function setTranslationConfiguration(TMap $config)
        {
                if($config['type'] == 'XLIFF' || $config['type'] == 'gettext')
                {
                        if($config['source'])
                        {
                                $config['source'] = Prado::getPathOfNamespace($config['source']);
                                if(!is_dir($config['source']))
                                {
                                        if(@mkdir($config['source'])===false)
                                        throw new TConfigurationException('globalization_source_path_failed',
                                                $config['source']);
                                        chmod($config['source'], PRADO_CHMOD); //make it deletable
                                }
                        }
                        else
                        {
                                throw new TConfigurationException("invalid source dir '{$config['source']}'");
                        }
                }
                if($config['cache'])
                {
                        $config['cache'] = $this->getApplication()->getRunTimePath().'/i18n';
                        if(!is_dir($config['cache']))
                        {
                                if(@mkdir($config['cache'])===false)
                                        throw new TConfigurationException('globalization_cache_path_failed',
                                                $config['cache']);
                                chmod($config['cache'], PRADO_CHMOD); //make it deletable
                        }
                }
                $this->_translation = $config;
        }

        /**
         * @return string current translation catalogue.
         */
        public function getTranslationCatalogue()
        {
                return $this->_translation['catalogue'];
        }

        /**
         * @param string update the translation catalogue.
         */
        public function setTranslationCatalogue($value)
        {
                $this->_translation['catalogue'] = $value;
        }

        /**
         * Gets all the variants of a specific culture. If the parameter
         * $culture is null, the current culture is used.
         * @param string $culture the Culture string
         * @return array variants of the culture.
         */
        public function getCultureVariants($culture=null)
        {
                if(is_null($culture)) $culture = $this->getCulture();
                $variants = explode('_', $culture);
                $result = array();
                for(; count($variants) > 0; array_pop($variants))
                        $result[] = implode('_', $variants);
                return $result;
        }

        /**
         * Returns a list of possible localized files. Example
         * <code>
         * $files = $app->getLocalizedResource("path/to/Home.page","en_US");
         * </code>
         * will return
         * <pre>
         * array
         *   0 => 'path/to/en_US/Home.page'
         *   1 => 'path/to/en/Home.page'
         *   2 => 'path/to/Home.en_US.page'
         *   3 => 'path/to/Home.en.page'
         *   4 => 'path/to/Home.page'
         * </pre>
         * Note that you still need to verify the existance of these files.
         * @param string filename
         * @param string culture string, null to use current culture
         * @return array list of possible localized resource files.
         */
        public function getLocalizedResource($file,$culture=null)
        {
                $files = array();
                $variants = $this->getCultureVariants($culture);
                $path = pathinfo($file);
                foreach($variants as $variant)
                        $files[] = $path['dirname'].DIRECTORY_SEPARATOR.$variant.DIRECTORY_SEPARATOR.$path['basename'];
                $filename = substr($path['basename'],0,strrpos($path['basename'],'.'));
                foreach($variants as $variant)
                        $files[] = $path['dirname'].DIRECTORY_SEPARATOR.$filename.'.'.$variant.'.'.$path['extension'];
                $files[] = $file;
                return $files;
        }

}

?>
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