add icons for Character groups

www/analytics/plugins/LanguagesManager/LanguagesManager.php

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+<?php
+/**
+ * Piwik - Open source web analytics
+ *
+ * @link http://piwik.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ *
+ *
+ */
+namespace Piwik\Plugins\LanguagesManager;
+
+use Exception;
+use Piwik\Common;
+use Piwik\Config;
+
+use Piwik\Cookie;
+use Piwik\Db;
+use Piwik\DbHelper;
+use Piwik\Menu\MenuTop;
+use Piwik\Piwik;
+use Piwik\Translate;
+use Piwik\View;
+
+/**
+ *
+ */
+class LanguagesManager extends \Piwik\Plugin
+{
+    /**
+     * @see Piwik\Plugin::getListHooksRegistered
+     */
+    public function getListHooksRegistered()
+    {
+        return array(
+            'AssetManager.getStylesheetFiles' => 'getStylesheetFiles',
+            'AssetManager.getJavaScriptFiles' => 'getJsFiles',
+            'Menu.Top.addItems'               => 'showLanguagesSelector',
+            'User.getLanguage'                => 'getLanguageToLoad',
+            'UsersManager.deleteUser'         => 'deleteUserLanguage',
+            'Template.topBar'                 => 'addLanguagesManagerToOtherTopBar',
+            'Template.jsGlobalVariables'      => 'jsGlobalVariables'
+        );
+    }
+
+    public function getStylesheetFiles(&$stylesheets)
+    {
+        $stylesheets[] = "plugins/Zeitgeist/stylesheets/base.less";
+    }
+
+    public function getJsFiles(&$jsFiles)
+    {
+        $jsFiles[] = "plugins/LanguagesManager/javascripts/languageSelector.js";
+    }
+
+    public function showLanguagesSelector()
+    {
+        if (Piwik::isUserIsAnonymous() || !DbHelper::isInstalled()) {
+            MenuTop::addEntry('LanguageSelector', $this->getLanguagesSelector(), true, $order = 30, true);
+        }
+    }
+
+    /**
+     * Adds the languages drop-down list to topbars other than the main one rendered
+     * in CoreHome/templates/top_bar.twig. The 'other' topbars are on the Installation
+     * and CoreUpdater screens.
+     */
+    public function addLanguagesManagerToOtherTopBar(&$str)
+    {
+        // piwik object & scripts aren't loaded in 'other' topbars
+        $str .= "<script type='text/javascript'>if (!window.piwik) window.piwik={};</script>";
+        $str .= "<script type='text/javascript' src='plugins/LanguagesManager/javascripts/languageSelector.js'></script>";
+        $str .= $this->getLanguagesSelector();
+    }
+
+    /**
+     * Adds the languages drop-down list to topbars other than the main one rendered
+     * in CoreHome/templates/top_bar.twig. The 'other' topbars are on the Installation
+     * and CoreUpdater screens.
+     */
+    public function jsGlobalVariables(&$str)
+    {
+        // piwik object & scripts aren't loaded in 'other' topbars
+        $str .= "piwik.languageName = '" .  self::getLanguageNameForCurrentUser() . "';";
+    }
+
+    /**
+     * Renders and returns the language selector HTML.
+     *
+     * @return string
+     */
+    private function getLanguagesSelector()
+    {
+        $view = new View("@LanguagesManager/getLanguagesSelector");
+        $view->languages = API::getInstance()->getAvailableLanguageNames();
+        $view->currentLanguageCode = self::getLanguageCodeForCurrentUser();
+        return $view->render();
+    }
+
+    function getLanguageToLoad(&$language)
+    {
+        if (empty($language)) {
+            $language = self::getLanguageCodeForCurrentUser();
+        }
+        if (!API::getInstance()->isLanguageAvailable($language)) {
+            $language = Translate::getLanguageDefault();
+        }
+    }
+
+    public function deleteUserLanguage($userLogin)
+    {
+        Db::query('DELETE FROM ' . Common::prefixTable('user_language') . ' WHERE login = ?', $userLogin);
+    }
+
+    /**
+     * @throws Exception if non-recoverable error
+     */
+    public function install()
+    {
+        $userLanguage = "login VARCHAR( 100 ) NOT NULL ,
+					     language VARCHAR( 10 ) NOT NULL ,
+					     PRIMARY KEY ( login )";
+        DbHelper::createTable('user_language', $userLanguage);
+    }
+
+    /**
+     * @throws Exception if non-recoverable error
+     */
+    public function uninstall()
+    {
+        Db::dropTables(Common::prefixTable('user_language'));
+    }
+
+    /**
+     * @return string Two letters language code, eg. "fr"
+     */
+    static public function getLanguageCodeForCurrentUser()
+    {
+        $languageCode = self::getLanguageFromPreferences();
+        if (!API::getInstance()->isLanguageAvailable($languageCode)) {
+            $languageCode = Common::extractLanguageCodeFromBrowserLanguage(Common::getBrowserLanguage(), API::getInstance()->getAvailableLanguages());
+        }
+        if (!API::getInstance()->isLanguageAvailable($languageCode)) {
+            $languageCode = Translate::getLanguageDefault();
+        }
+        return $languageCode;
+    }
+
+    /**
+     * @return string Full english language string, eg. "French"
+     */
+    static public function getLanguageNameForCurrentUser()
+    {
+        $languageCode = self::getLanguageCodeForCurrentUser();
+        $languages = API::getInstance()->getAvailableLanguageNames();
+        foreach ($languages as $language) {
+            if ($language['code'] === $languageCode) {
+                return $language['name'];
+            }
+        }
+        return false;
+    }
+
+    /**
+     * @return string|false if language preference could not be loaded
+     */
+    static protected function getLanguageFromPreferences()
+    {
+        if (($language = self::getLanguageForSession()) != null) {
+            return $language;
+        }
+
+        try {
+            $currentUser = Piwik::getCurrentUserLogin();
+            return API::getInstance()->getLanguageForUser($currentUser);
+        } catch (Exception $e) {
+            return false;
+        }
+    }
+
+    /**
+     * Returns the language for the session
+     *
+     * @return string|null
+     */
+    static public function getLanguageForSession()
+    {
+        $cookieName = Config::getInstance()->General['language_cookie_name'];
+        $cookie = new Cookie($cookieName);
+        if ($cookie->isCookieFound()) {
+            return $cookie->get('language');
+        }
+        return null;
+    }
+
+    /**
+     * Set the language for the session
+     *
+     * @param string $languageCode ISO language code
+     * @return bool
+     */
+    static public function setLanguageForSession($languageCode)
+    {
+        if (!API::getInstance()->isLanguageAvailable($languageCode)) {
+            return false;
+        }
+
+        $cookieName = Config::getInstance()->General['language_cookie_name'];
+        $cookie = new Cookie($cookieName, 0);
+        $cookie->set('language', $languageCode);
+        $cookie->save();
+        return true;
+    }
+}