library/Msd/Language.php

@@ -0,0 +1,185 @@
+<?php
+/**
+ * This file is part of MySQLDumper released under the GNU/GPL 2 license
+ * http://www.mysqldumper.net
+ *
+ * @package         MySQLDumper
+ * @subpackage      Language
+ * @version         SVN: $Rev$
+ * @author          $Author$
+ */
+/**
+ * Language class implemented as singleton
+ *
+ * Handles translation of language variables.
+ *
+ * @package         MySQLDumper
+ * @subpackage      Language
+ */
+class Msd_Language
+{
+    /**
+     * Instance
+     *
+     * @var Msd_Configuration
+     */
+    private static $_instance = NULL;
+
+    /**
+     * Translator
+     *
+     * @var Zend_Translate
+     */
+    private $_translate = NULL;
+
+    /**
+     * Base directory for language files
+     *
+     * @var string
+     */
+    private $_baseLanguageDir = null;
+
+    /**
+     * Constructor gets the configuration params
+     *
+     * @return array
+     */
+    private function __construct ()
+    {
+        $config = Msd_Configuration::getInstance();
+        $language = $config->get('config.interface.language');
+        $this->loadLanguage($language);
+    }
+
+    /**
+     * Load new language.
+     *
+     * @param string $language New language
+     *
+     * @return void
+     */
+    public function loadLanguage($language)
+    {
+        $this->_baseLanguageDir = APPLICATION_PATH . DS . 'language' . DS;
+        $file = $this->_baseLanguageDir . $language . DS . 'lang.php';
+        $translator = $this->getTranslator();
+        if ($translator === null) {
+            $translator = new Zend_Translate('array', $file, $language);
+        } else {
+            $translator->setAdapter(
+                array(
+                    'adapter' => 'array',
+                    'content' => $file,
+                    'locale' => $language
+                )
+            );
+        }
+        $this->setTranslator($translator);
+        Zend_Registry::set('Zend_Translate', $translator);
+    }
+    /**
+     * No cloning for singleton
+     *
+     * @return void
+     */
+    public function __clone()
+    {
+        throw new Msd_Exception('Cloning of Msd_Language is not allowed!');
+    }
+
+    /**
+     * Magic getter to keep syntax in rest of script short
+     *
+     * @param mixed $var
+     *
+     * @return mixed
+     */
+    public function __get ($property)
+    {
+        $translated = $this->getTranslator()->_($property);
+        if ($translated == $property && substr($property, 0, 2) == 'L_') {
+            // no translation found -> remove prefix L_
+            return substr($property, 2);
+        }
+        return $translated;
+    }
+    /**
+     * Returns the single instance
+     *
+     * @return Msd_Language
+     */
+    public static function getInstance ()
+    {
+        if (NULL == self::$_instance) {
+            self::$_instance = new self;
+        }
+        return self::$_instance;
+    }
+
+    /**
+     * Translate a Message from Zend_Validate.
+     *
+     * @param string $zendMessageId Message ID from Zend_Validate
+     * @param string $messageText   Pre-translatet message
+     *
+     * @return string
+     */
+    public function translateZendId($zendMessageId, $messageText = '')
+    {
+        if (substr($zendMessageId, 0, 6) =='access' && $messageText > '') {
+            // message is already translated by validator access
+            return $messageText;
+        }
+        return $this->_translate->_(
+            $this->_transformMessageId($zendMessageId)
+        );
+    }
+
+    /**
+     * Transforms a message ID in Zend_Validate format into Msd_Language format.
+     *
+     * @param string $zendMessageId Message ID from Zend_Validate
+     *
+     * @return string
+     */
+    private function _transformMessageId($zendMessageId)
+    {
+        $result = preg_replace('/([A-Z])/', '_${1}', $zendMessageId);
+        $result = strtoupper($result);
+        return 'L_ZEND_ID_' . $result;
+    }
+
+    /**
+     * Get Translator
+     *
+     * @return Zend_Translate
+     */
+    public function getTranslator()
+    {
+        return $this->_translate;
+    }
+
+    /**
+     * Set Translator
+     *
+     * @param Zend_Translate $translate
+     *
+     * @return void
+     */
+    public function setTranslator(Zend_Translate $translate)
+    {
+        $this->_translate = $translate;
+    }
+
+    /**
+     * Retrieve a list of available languages.
+     *
+     * @return array
+     */
+    public function getAvailableLanguages()
+    {
+        $lang = array();
+        include $this->_baseLanguageDir . 'lang_list.php';
+        return $lang;
+    }
+}