PHP Translatable::get_existing_content_languages方法代碼示例

 public function init()
 {
     // set reading lang
     if (SiteTree::has_extension('Translatable') && !$this->getRequest()->isAjax()) {
         Translatable::choose_site_locale(array_keys(Translatable::get_existing_content_languages('SiteTree')));
     }
     parent::init();
     Versioned::reading_stage("Stage");
     Requirements::css(CMS_DIR . '/css/screen.css');
     Requirements::customCSS($this->generatePageIconsCss());
     Requirements::combine_files('cmsmain.js', array_merge(array(CMS_DIR . '/javascript/CMSMain.js', CMS_DIR . '/javascript/CMSMain.EditForm.js', CMS_DIR . '/javascript/CMSMain.AddForm.js', CMS_DIR . '/javascript/CMSPageHistoryController.js', CMS_DIR . '/javascript/CMSMain.Tree.js', CMS_DIR . '/javascript/SilverStripeNavigator.js', CMS_DIR . '/javascript/SiteTreeURLSegmentField.js'), Requirements::add_i18n_javascript(CMS_DIR . '/javascript/lang', true, true)));
     CMSBatchActionHandler::register('publish', 'CMSBatchAction_Publish');
     CMSBatchActionHandler::register('unpublish', 'CMSBatchAction_Unpublish');
     // Check legacy actions
     $legacy = $this->config()->enabled_legacy_actions;
     // Delete from live is unnecessary since we have unpublish which does the same thing
     if (in_array('CMSBatchAction_DeleteFromLive', $legacy)) {
         Deprecation::notice('4.0', 'Delete From Live is deprecated. Use Un-publish instead');
         CMSBatchActionHandler::register('deletefromlive', 'CMSBatchAction_DeleteFromLive');
     }
     // Delete action
     if (in_array('CMSBatchAction_Delete', $legacy)) {
         Deprecation::notice('4.0', 'Delete from Stage is deprecated. Use Archive instead.');
         CMSBatchActionHandler::register('delete', 'CMSBatchAction_Delete');
     } else {
         CMSBatchActionHandler::register('archive', 'CMSBatchAction_Archive');
         CMSBatchActionHandler::register('restore', 'CMSBatchAction_Restore');
     }
 }

	public function init() {
		// set reading lang
		if(Object::has_extension('SiteTree', 'Translatable') && !$this->request->isAjax()) {
			Translatable::choose_site_locale(array_keys(Translatable::get_existing_content_languages('SiteTree')));
		}
		
		parent::init();
		
		Requirements::css(CMS_DIR . '/css/screen.css');
		
		Requirements::combine_files(
			'cmsmain.js',
			array_merge(
				array(
					CMS_DIR . '/javascript/CMSMain.js',
					CMS_DIR . '/javascript/CMSMain.EditForm.js',
					CMS_DIR . '/javascript/CMSMain.AddForm.js',
					CMS_DIR . '/javascript/CMSPageHistoryController.js',
					CMS_DIR . '/javascript/CMSMain.Tree.js',
					CMS_DIR . '/javascript/SilverStripeNavigator.js'
				),
				Requirements::add_i18n_javascript(CMS_DIR . '/javascript/lang', true, true)
			)
		);

		CMSBatchActionHandler::register('publish', 'CMSBatchAction_Publish');
		CMSBatchActionHandler::register('unpublish', 'CMSBatchAction_Unpublish');
		CMSBatchActionHandler::register('delete', 'CMSBatchAction_Delete');
		CMSBatchActionHandler::register('deletefromlive', 'CMSBatchAction_DeleteFromLive');
	}

 /**
  * Create a new LanguageDropdownField
  * @param string $name
  * @param string $title
  * @param array $excludeLocales List of locales that won't be included
  * @param string $translatingClass Name of the class with translated instances where to look for used languages
  * @param string $list Indicates the source language list. Can be either Common-English, Common-Native, Locale-English, Locale-Native
  */
 function __construct($name, $title, $excludeLocales = array(), $translatingClass = 'SiteTree', $list = 'Common-English', $instance = null)
 {
     $usedLocalesWithTitle = Translatable::get_existing_content_languages($translatingClass);
     $usedLocalesWithTitle = array_diff_key($usedLocalesWithTitle, $excludeLocales);
     if ('Common-English' == $list) {
         $allLocalesWithTitle = i18n::get_common_languages();
     } else {
         if ('Common-Native' == $list) {
             $allLocalesWithTitle = i18n::get_common_languages(true);
         } else {
             if ('Locale-English' == $list) {
                 $allLocalesWithTitle = i18n::get_common_locales();
             } else {
                 if ('Locale-Native' == $list) {
                     $allLocalesWithTitle = i18n::get_common_locales(true);
                 } else {
                     $allLocalesWithTitle = i18n::get_locale_list();
                 }
             }
         }
     }
     if (isset($allLocales[Translatable::default_locale()])) {
         unset($allLocales[Translatable::default_locale()]);
     }
     // Limit to allowed locales if defined
     // Check for canTranslate() if an $instance is given
     $allowedLocales = Translatable::get_allowed_locales();
     foreach ($allLocalesWithTitle as $locale => $localeTitle) {
         if ($allowedLocales && !in_array($locale, $allowedLocales) || $excludeLocales && in_array($locale, $excludeLocales) || $usedLocalesWithTitle && array_key_exists($locale, $usedLocalesWithTitle)) {
             unset($allLocalesWithTitle[$locale]);
         }
     }
     // instance specific permissions
     foreach ($allLocalesWithTitle as $locale => $localeTitle) {
         if ($instance && !$instance->canTranslate(null, $locale)) {
             unset($allLocalesWithTitle[$locale]);
         }
     }
     foreach ($usedLocalesWithTitle as $locale => $localeTitle) {
         if ($instance && !$instance->canTranslate(null, $locale)) {
             unset($usedLocalesWithTitle[$locale]);
         }
     }
     // Sort by title (array value)
     asort($allLocalesWithTitle);
     if (count($usedLocalesWithTitle)) {
         asort($usedLocalesWithTitle);
         $source = array(_t('Form.LANGAVAIL', "Available languages") => $usedLocalesWithTitle, _t('Form.LANGAOTHER', "Other languages") => $allLocalesWithTitle);
     } else {
         $source = $allLocalesWithTitle;
     }
     parent::__construct($name, $title, $source);
 }

 /**
  * Returns a LanguageDropdownField instance used as a default for form 
  * scaffolding.
  * 
  * @param string $title  Optional. Localized title of the generated instance
  * @param array  $params Optional.
  * 
  * @return FormField
  *
  * @author Sebastian Diel <sdiel@pixeltricks.de>
  * @since 20.03.2013
  */
 public function scaffoldFormField($title = null, $params = null)
 {
     if (is_null($title)) {
         $title = _t('SilvercartConfig.TRANSLATION');
     }
     $instance = null;
     $alreadyTranslatedLocales = array();
     $translatingClass = 'SiteTree';
     if (array_key_exists('object', $params)) {
         $translatingClass = $params['object']->ClassName;
         $instance = $params['object'];
     }
     if ($instance) {
         $alreadyTranslatedLocales = $instance->getTranslatedLocales();
         unset($alreadyTranslatedLocales[$instance->Locale]);
     }
     $localeDropdown = new LanguageDropdownField($this->name, $title, $alreadyTranslatedLocales, $translatingClass, 'Locale-Native', $instance);
     $currentLocale = Translatable::get_current_locale();
     $localesWithTitle = $localeDropdown->getSource();
     $usedLocalesWithTitle = Translatable::get_existing_content_languages('SiteTree');
     $languageList = array();
     $usedLanguageList = array();
     foreach ($localesWithTitle as $locale => $localeTitle) {
         if (is_array($localeTitle)) {
             foreach ($localeTitle as $locale2 => $title2) {
                 $title2 = SilvercartLanguageHelper::getLanguageDisplayTitle($locale2, $currentLocale);
                 if (array_key_exists($locale2, $usedLocalesWithTitle)) {
                     $usedLanguageList[$locale2] = $title2;
                     unset($languageList[$locale2]);
                 } else {
                     $languageList[$locale2] = $title2;
                 }
             }
         } else {
             $localeTitle = SilvercartLanguageHelper::getLanguageDisplayTitle($locale, $currentLocale);
             if (array_key_exists($locale, $usedLocalesWithTitle)) {
                 $usedLanguageList[$locale] = $localeTitle;
                 unset($languageList[$locale]);
             } else {
                 $languageList[$locale] = $localeTitle;
             }
         }
     }
     asort($languageList);
     if (count($usedLanguageList)) {
         asort($usedLanguageList);
         $languageList = array(_t('Form.LANGAVAIL', "Available languages") => $usedLanguageList, _t('Form.LANGAOTHER', "Other languages") => $languageList);
     }
     $localeDropdown->setSource($languageList);
     return $localeDropdown;
 }

	/**
	 * Create a new LanguageDropdownField
	 * @param string $name
	 * @param string $title
	 * @param array $dontInclude list of languages that won't be included
	 * @param string $translatingClass Name of the class with translated instances where to look for used languages
	 * @param string $list Indicates the source language list. Can be either Common-English, Common-Native  Locale
	 */
	function __construct($name, $title, $dontInclude = array(), $translatingClass = 'SiteTree', $list = 'Common-English' ) {
		$usedlangs = array_diff(
			Translatable::get_existing_content_languages($translatingClass),
			$dontInclude
		);
		// we accept in dontInclude both language codes and names, so another diff is required
		$usedlangs = array_diff(
			$usedlangs,
			array_flip($dontInclude)
		);

		if (isset($usedlangs[Translatable::default_lang()])) unset($usedlangs[Translatable::default_lang()]);
					
		if ('Common-English' == $list) $languageList = i18n::get_common_languages();
		else if ('Common-Native' == $list) $languageList = i18n::get_common_languages(true);
		else $languageList = i18n::get_locale_list();

		$alllangs = array_diff(
						$languageList,
						(array)$usedlangs,
						$dontInclude
					);
		$alllangs = array_flip(array_diff(
						array_flip($alllangs),
						$dontInclude
					));
		if (isset($alllangs[Translatable::default_lang()])) unset($alllangs[Translatable::default_lang()]);

		asort($alllangs);
		if (count($usedlangs)) {
			asort($usedlangs);
			$labelAvail = _t('Form.LANGAVAIL', "Available languages");
			$labelOther = _t('Form.LANGAOTHER', "Other languages");
			parent::__construct($name, $title, array(
					$labelAvail => $usedlangs,
					$labelOther => $alllangs
				),
				reset($usedlangs)
			);
		}
		else {
			parent::__construct($name, $title, $alllangs);
		}
	}

 public function init()
 {
     // set reading lang
     if (Object::has_extension('ContentModule', 'Translatable') && !$this->request->isAjax()) {
         Translatable::choose_site_locale(array_keys(Translatable::get_existing_content_languages('ContentModule')));
     }
     parent::init();
     Versioned::reading_stage("Stage");
     Requirements::css(CMS_DIR . '/css/screen.css');
     Requirements::css(INPAGE_MODULES_DIR . '/css/ContentModule_Admin.css');
     Requirements::combine_files('contentmodulemain.js', array_merge(array(CMS_DIR . '/javascript/CMSPageHistoryController.js')));
     //CMSBatchActionHandler::register('publish', 'CMSBatchAction_Publish');
     //CMSBatchActionHandler::register('unpublish', 'CMSBatchAction_Unpublish');
     //CMSBatchActionHandler::register('delete', 'CMSBatchAction_Delete');
     //CMSBatchActionHandler::register('deletefromlive', 'CMSBatchAction_DeleteFromLive');
     if (isset($_REQUEST['ID'])) {
         $this->setCurrentPageID($_REQUEST['ID']);
     }
 }

 /**
  * return the $locale based on the language prefix. If no locale is given,
  * the default Translatable locale is assumed.
  *
  * @param string prefix
  * @return string locale
  */
 public static function get_locale_from_prefix($prefix = '')
 {
     // no prefix? must be root url, so set locale to default
     if (empty($prefix)) {
         return Translatable::default_locale();
     }
     // language prefixes defined?
     if (!empty(self::$locale_prefix_map)) {
         $arrayLocale = array_flip(self::$locale_prefix_map);
         $locale = isset($arrayLocale[$prefix]) ? $arrayLocale[$prefix] : '';
         // no prefixes defined so we use the locale as a prefix
     } else {
         $locale = $prefix;
     }
     // do we have a valid locale?
     if ($locale) {
         $validLocales = Translatable::get_existing_content_languages();
         if (!array_key_exists($locale, $validLocales)) {
             $locale = '';
         }
     }
     // should we consider an empty locale at this point as faulty
     return $locale;
 }

 /**
  * @uses LeftAndMainDecorator->init()
  * @uses LeftAndMainDecorator->accessedCMS()
  * @uses CMSMenu
  */
 function init()
 {
     parent::init();
     SSViewer::setOption('rewriteHashlinks', false);
     // set language
     $member = Member::currentUser();
     if (!empty($member->Locale)) {
         i18n::set_locale($member->Locale);
     }
     if (!empty($member->DateFormat)) {
         i18n::set_date_format($member->DateFormat);
     }
     if (!empty($member->TimeFormat)) {
         i18n::set_time_format($member->TimeFormat);
     }
     // can't be done in cms/_config.php as locale is not set yet
     CMSMenu::add_link('Help', _t('LeftAndMain.HELP', 'Help', PR_HIGH, 'Menu title'), self::$help_link);
     // set reading lang
     if (Object::has_extension('SiteTree', 'Translatable') && !$this->isAjax()) {
         Translatable::choose_site_locale(array_keys(Translatable::get_existing_content_languages('SiteTree')));
     }
     // Allow customisation of the access check by a decorator
     // Also all the canView() check to execute Director::redirect()
     if (!$this->canView() && !$this->response->isFinished()) {
         // When access /admin/, we should try a redirect to another part of the admin rather than be locked out
         $menu = $this->MainMenu();
         foreach ($menu as $candidate) {
             if ($candidate->Link && $candidate->Link != $this->Link() && $candidate->MenuItem->controller && singleton($candidate->MenuItem->controller)->canView()) {
                 return Director::redirect($candidate->Link);
             }
         }
         if (Member::currentUser()) {
             Session::set("BackURL", null);
         }
         // if no alternate menu items have matched, return a permission error
         $messageSet = array('default' => _t('LeftAndMain.PERMDEFAULT', "Please choose an authentication method and enter your credentials to access the CMS."), 'alreadyLoggedIn' => _t('LeftAndMain.PERMALREADY', "I'm sorry, but you can't access that part of the CMS.  If you want to log in as someone else, do so below"), 'logInAgain' => _t('LeftAndMain.PERMAGAIN', "You have been logged out of the CMS.  If you would like to log in again, enter a username and password below."));
         return Security::permissionFailure($this, $messageSet);
     }
     // Don't continue if there's already been a redirection request.
     if (Director::redirected_to()) {
         return;
     }
     // Audit logging hook
     if (empty($_REQUEST['executeForm']) && !$this->isAjax()) {
         $this->extend('accessedCMS');
     }
     // Set the members html editor config
     HtmlEditorConfig::set_active(Member::currentUser()->getHtmlEditorConfigForCMS());
     // Set default values in the config if missing.  These things can't be defined in the config
     // file because insufficient information exists when that is being processed
     $htmlEditorConfig = HtmlEditorConfig::get_active();
     $htmlEditorConfig->setOption('language', i18n::get_tinymce_lang());
     if (!$htmlEditorConfig->getOption('content_css')) {
         $cssFiles = 'cms/css/editor.css';
         // Use theme from the site config
         if (($config = SiteConfig::current_site_config()) && $config->Theme) {
             $theme = $config->Theme;
         } elseif (SSViewer::current_theme()) {
             $theme = SSViewer::current_theme();
         } else {
             $theme = false;
         }
         if ($theme) {
             $cssFiles .= ',' . THEMES_DIR . "/{$theme}/css/editor.css";
         } else {
             if (project()) {
                 $cssFiles .= ',' . project() . '/css/editor.css';
             }
         }
         $htmlEditorConfig->setOption('content_css', $cssFiles);
     }
     Requirements::css(CMS_DIR . '/css/typography.css');
     Requirements::css(CMS_DIR . '/css/layout.css');
     Requirements::css(CMS_DIR . '/css/cms_left.css');
     Requirements::css(CMS_DIR . '/css/cms_right.css');
     Requirements::css(SAPPHIRE_DIR . '/css/Form.css');
     if (isset($_REQUEST['debug_firebug'])) {
         // Firebug is a useful console for debugging javascript
         // Its available as a Firefox extension or a javascript library
         // for easy inclusion in other browsers (just append ?debug_firebug=1 to the URL)
         Requirements::javascript(SAPPHIRE_DIR . '/thirdparty/firebug-lite/firebug.js');
     } else {
         // By default, we include fake-objects for all firebug calls
         // to avoid javascript errors when referencing console.log() etc in javascript code
         Requirements::javascript(SAPPHIRE_DIR . '/thirdparty/firebug-lite/firebugx.js');
     }
     Requirements::javascript(SAPPHIRE_DIR . '/javascript/prototypefix/intro.js');
     Requirements::javascript(SAPPHIRE_DIR . '/thirdparty/prototype/prototype.js');
     Requirements::javascript(SAPPHIRE_DIR . '/javascript/prototypefix/outro.js');
     Requirements::javascript(SAPPHIRE_DIR . '/thirdparty/jquery/jquery.js');
     Requirements::javascript(SAPPHIRE_DIR . '/javascript/jquery_improvements.js');
     Requirements::javascript(SAPPHIRE_DIR . '/thirdparty/jquery-ui/jquery-ui.js');
     //import all of jquery ui
     Requirements::javascript(CMS_DIR . '/thirdparty/jquery-layout/jquery.layout.js');
     Requirements::javascript(CMS_DIR . '/thirdparty/jquery-layout/jquery.layout.state.js');
//.........這裏部分代碼省略.........

 /**
  * Determine if there are more than one languages in our site tree.
  * 
  * @return boolean
  */
 function MultipleLanguages()
 {
     $langs = Translatable::get_existing_content_languages('SiteTree');
     return count($langs) > 1;
 }

 /**
  * Get the locales that should be translated
  * @return array containing the locales to use
  */
 protected static function get_target_locales()
 {
     // if locales are explicitly set, use these
     if (is_array(self::config()->locales)) {
         return (array) self::config()->locales;
         // otherwise check the allowed locales. If these have been set, use these
     } else {
         if (is_array(Translatable::get_allowed_locales())) {
             return (array) Translatable::get_allowed_locales();
         }
     }
     // last resort is to take the existing content languages
     return array_keys(Translatable::get_existing_content_languages());
 }

	/**
	 * @uses LeftAndMainDecorator->init()
	 * @uses LeftAndMainDecorator->accessedCMS()
	 * @uses CMSMenu
	 * @uses Director::set_site_mode()
	 */
	function init() {
		parent::init();

		Director::set_site_mode('cms');
		
		// set language
		$member = Member::currentUser();
		if(!empty($member->Locale)) {
			i18n::set_locale($member->Locale);
		}
		
		// can't be done in cms/_config.php as locale is not set yet
		CMSMenu::add_link(
			'Help', 
			_t('LeftAndMain.HELP', 'Help', PR_HIGH, 'Menu title'), 
			'http://userhelp.silverstripe.com'
		);
		
		// set reading lang
		if(Translatable::is_enabled() && !Director::is_ajax()) {
			Translatable::choose_site_lang(array_keys(Translatable::get_existing_content_languages('SiteTree')));
		}

		// Allow customisation of the access check by a decorator
		if(!$this->canView()) {
			// When access /admin/, we should try a redirect to another part of the admin rather than be locked out
			$menu = $this->MainMenu();
			foreach($menu as $candidate) {
				if(
					$candidate->Link && 
					$candidate->Link != $this->Link() 
					&& $candidate->MenuItem->controller 
					&& singleton($candidate->MenuItem->controller)->canView()
				) {
					return Director::redirect($candidate->Link);
				}
			}
			
			if(Member::currentUser()) {
				Session::set("BackURL", null);
			}
			
			// if no alternate menu items have matched, return a permission error
			$messageSet = array(
				'default' => _t('LeftAndMain.PERMDEFAULT',"Please choose an authentication method and enter your credentials to access the CMS."),
				'alreadyLoggedIn' => _t('LeftAndMain.PERMALREADY',"I'm sorry, but you can't access that part of the CMS.  If you want to log in as someone else, do so below"),
				'logInAgain' => _t('LeftAndMain.PERMAGAIN',"You have been logged out of the CMS.  If you would like to log in again, enter a username and password below."),
			);

			return Security::permissionFailure($this, $messageSet);
		}

		// Don't continue if there's already been a redirection request.
		if(Director::redirected_to()) return;

		// Audit logging hook
		if(empty($_REQUEST['executeForm']) && !Director::is_ajax()) $this->extend('accessedCMS');
		
		Requirements::css(CMS_DIR . '/css/typography.css');
		Requirements::css(CMS_DIR . '/css/layout.css');
		Requirements::css(CMS_DIR . '/css/cms_left.css');
		Requirements::css(CMS_DIR . '/css/cms_right.css');
		Requirements::css(SAPPHIRE_DIR . '/css/Form.css');
		
		if(isset($_REQUEST['debug_firebug'])) {
			// Firebug is a useful console for debugging javascript
			// Its available as a Firefox extension or a javascript library
			// for easy inclusion in other browsers (just append ?debug_firebug=1 to the URL)
			Requirements::javascript(THIRDPARTY_DIR . '/firebug/firebug-lite-compressed.js');
		} else {
			// By default, we include fake-objects for all firebug calls
			// to avoid javascript errors when referencing console.log() etc in javascript code
			Requirements::javascript(THIRDPARTY_DIR . '/firebug/firebugx.js');
		}
		
		Requirements::javascript(THIRDPARTY_DIR . '/prototype.js');
		Requirements::javascript(THIRDPARTY_DIR . '/jquery/jquery.js');
		Requirements::javascript(THIRDPARTY_DIR . '/jquery/jquery_improvements.js');
		Requirements::javascript(THIRDPARTY_DIR . '/behaviour.js');
		Requirements::javascript(THIRDPARTY_DIR . '/jquery/plugins/livequery/jquery.livequery.js');
		Requirements::javascript(SAPPHIRE_DIR . '/javascript/core/jquery.ondemand.js');
		Requirements::javascript(THIRDPARTY_DIR . '/prototype_improvements.js');
		Requirements::javascript(THIRDPARTY_DIR . '/loader.js');
		Requirements::javascript(THIRDPARTY_DIR . '/hover.js');
		Requirements::javascript(THIRDPARTY_DIR . '/layout_helpers.js');
		Requirements::javascript(SAPPHIRE_DIR . "/javascript/i18n.js");
		
		Requirements::javascript(THIRDPARTY_DIR . '/scriptaculous/effects.js');
		Requirements::javascript(THIRDPARTY_DIR . '/scriptaculous/dragdrop.js');
		Requirements::javascript(THIRDPARTY_DIR . '/scriptaculous/controls.js');

		Requirements::css(THIRDPARTY_DIR . '/greybox/greybox.css');
		Requirements::javascript(THIRDPARTY_DIR . '/greybox/AmiJS.js');
		Requirements::javascript(THIRDPARTY_DIR . '/greybox/greybox.js');
//.........這裏部分代碼省略.........

	function init() {
		// set language
		$member = Member::currentUser();
		if(!empty($member->Locale)) {
			i18n::set_locale($member->Locale);
		}
		
		// set reading lang
		if(Translatable::is_enabled() && !Director::is_ajax()) {
			Translatable::choose_site_lang(array_keys(Translatable::get_existing_content_languages('SiteTree')));
		}
		
		parent::init();
	}

 /**
  * Creates and returns the language dropdown field
  *
  * @param DataObject $dataObj          DataObject to get dropdown for
  * @param string     $translatingClass Context class of the LanguageDropdownField
  * @param string     $fieldName        Name of the LanguageDropdownField
  * 
  * @return LanguageDropdownField 
  * 
  * @author Sebastian Diel <sdiel@pixeltricks.de>
  * @since 21.12.2015
  */
 public static function prepareLanguageDropdownField($dataObj, $translatingClass = null, $fieldName = 'Locale')
 {
     $instance = null;
     $alreadyTranslatedLocales = array();
     if (is_null($translatingClass)) {
         $translatingClass = $dataObj->ClassName;
         $instance = $dataObj;
     }
     if ($instance) {
         $alreadyTranslatedLocales = $instance->getTranslatedLocales();
         unset($alreadyTranslatedLocales[$instance->Locale]);
     }
     $localeDropdown = new LanguageDropdownField($fieldName, _t('SilvercartConfig.TRANSLATION'), $alreadyTranslatedLocales, $translatingClass, 'Locale-Native', $instance);
     $currentLocale = Translatable::get_current_locale();
     $localesWithTitle = $localeDropdown->getSource();
     $usedLocalesWithTitle = Translatable::get_existing_content_languages('SiteTree');
     $languageList = array();
     $usedLanguageList = array();
     foreach ($localesWithTitle as $locale => $title) {
         if (is_array($title)) {
             foreach ($title as $locale2 => $title2) {
                 $title2 = self::getLanguageDisplayTitle($locale2, $currentLocale);
                 if (array_key_exists($locale2, $usedLocalesWithTitle)) {
                     $usedLanguageList[$locale2] = $title2;
                     unset($languageList[$locale2]);
                 } else {
                     $languageList[$locale2] = $title2;
                 }
             }
         } else {
             $title = self::getLanguageDisplayTitle($locale, $currentLocale);
             if (array_key_exists($locale, $usedLocalesWithTitle)) {
                 $usedLanguageList[$locale] = $title;
                 unset($languageList[$locale]);
             } else {
                 $languageList[$locale] = $title;
             }
         }
     }
     asort($languageList);
     if (count($usedLanguageList)) {
         asort($usedLanguageList);
         $languageList = array(_t('Form.LANGAVAIL', "Available languages") => $usedLanguageList, _t('Form.LANGAOTHER', "Other languages") => $languageList);
     }
     $localeDropdown->setSource($languageList);
     $localeDropdown->setValue($dataObj->Locale);
     return $localeDropdown;
 }