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Path: /data/applications/aps/xoops/2.5.1a-0/standard/htdocs/class/ [ Home ]
File: theme.php
<?php
/**
 * xos_opal_Theme component class file
 *
 * You may not change or alter any portion of this comment or credits
 * of supporting developers from this source code or any supporting source code
 * which is considered copyrighted (c) material of the original comment or credit authors.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *
 * @copyright       The XOOPS project http://sourceforge.net/projects/xoops/
 * @license         GNU GPL 2 (http://www.gnu.org/licenses/old-licenses/gpl-2.0.html)
 * @author          Skalpa Keo <skalpa@xoops.org>
 * @author          Taiwen Jiang <phppp@users.sourceforge.net>
 * @since           2.3.0
 * @package         kernel
 * @subpackage      xos_opal_Theme
 * @version         $Id: theme.php 6342 2011-03-12 06:43:19Z phppp $
 */

defined('XOOPS_ROOT_PATH') or die('Restricted access');

/**
 * xos_opal_ThemeFactory
 *
 * @author Skalpa Keo
 * @package xos_opal
 * @subpackage xos_opal_Theme
 * @since 2.3.0
 */
class xos_opal_ThemeFactory
{
    var $xoBundleIdentifier = 'xos_opal_ThemeFactory';
    /**
     * Currently enabled themes (if empty, all the themes in themes/ are allowed)
     *
     * @var array
     */
    var $allowedThemes = array();
    /**
     * Default theme to instanciate if none specified
     *
     * @var string
     */
    var $defaultTheme = 'default';
    /**
     * If users are allowed to choose a custom theme
     *
     * @var bool
     */
    var $allowUserSelection = true;

    /**
     * Instanciate the specified theme
     */
    function &createInstance($options = array(), $initArgs = array())
    {
        // Grab the theme folder from request vars if present
        if (empty($options['folderName'])) {
            if (($req = @$_REQUEST['xoops_theme_select']) && $this->isThemeAllowed($req)) {
                $options['folderName'] = $req;
                if (isset($_SESSION) && $this->allowUserSelection) {
                    $_SESSION[$this->xoBundleIdentifier]['defaultTheme'] = $req;
                }
            } else if (isset($_SESSION[$this->xoBundleIdentifier]['defaultTheme'])) {
                $options['folderName'] = $_SESSION[$this->xoBundleIdentifier]['defaultTheme'];
            } else if (empty($options['folderName']) || ! $this->isThemeAllowed($options['folderName'])) {
                $options['folderName'] = $this->defaultTheme;
            }
            $GLOBALS['xoopsConfig']['theme_set'] = $options['folderName'];
        }
        $options['path'] = XOOPS_THEME_PATH . '/' . $options['folderName'];
        $inst = null;
        $inst = new xos_opal_Theme();
        foreach ($options as $k => $v) {
            $inst->$k = $v;
        }
        $inst->xoInit();
        return $inst;
    }

    /**
     * Checks if the specified theme is enabled or not
     *
     * @param string $name
     * @return bool
     */
    function isThemeAllowed($name)
    {
        return (empty($this->allowedThemes) || in_array($name, $this->allowedThemes));
    }
}

/**
 * xos_opal_AdminThemeFactory
 *
 * @author Andricq Nicolas (AKA MusS)
 * @author trabis
 * @package xos_opal
 * @subpackage xos_opal_Theme
 * @since 2.4.0
 */
class xos_opal_AdminThemeFactory extends xos_opal_ThemeFactory
{
    function &createInstance($options = array(), $initArgs = array())
    {
        $options["plugins"] = array();
        $options['renderBanner'] = false;
        $inst =& parent::createInstance($options, $initArgs);
        $inst->path = XOOPS_ADMINTHEME_PATH . '/' . $inst->folderName;
        $inst->url = XOOPS_ADMINTHEME_URL . '/' . $inst->folderName;
        $inst->template->assign(array(
            'theme_path'  => $inst->path,
            'theme_tpl'   => $inst->path.'/xotpl',
            'theme_url'   => $inst->url,
            'theme_img'   => $inst->url.'/img',
            'theme_icons' => $inst->url.'/icons',
            'theme_css'   => $inst->url.'/css',
            'theme_js'    => $inst->url.'/js',
            'theme_lang'  => $inst->url.'/language',
            ));

        return $inst;
    }
}

class xos_opal_Theme
{
    /**
     * Should we render banner? Not for redirect pages or admin side
     *
     * @var bool
     */
    var $renderBanner = true;
    /**
     * The name of this theme
     *
     * @var string
     */
    var $folderName = '';
    /**
     * Physical path of this theme folder
     *
     * @var string
     */
    var $path = '';
    var $url = '';

    /**
     * Whether or not the theme engine should include the output generated by php
     *
     * @var string
     */
    var $bufferOutput = true;
    /**
     * Canvas-level template to use
     *
     * @var string
     */
    var $canvasTemplate = 'theme.html';

     /**
     * Theme folder path
     *
     * @var string
     */
    var $themesPath = 'themes';

    /**
     * Content-level template to use
     *
     * @var string
     */
    var $contentTemplate = '';

    var $contentCacheLifetime = 0;
    var $contentCacheId = null;

    /**
     * Text content to display right after the contentTemplate output
     *
     * @var string
     */
    var $content = '';
    /**
     * Page construction plug-ins to use
     *
     * @var array
     * @access public
     */
    var $plugins = array(
        'xos_logos_PageBuilder');
    var $renderCount = 0;
    /**
     * Pointer to the theme template engine
     *
     * @var XoopsTpl
     */
    var $template = false;

    /**
     * Array containing the document meta-information
     *
     * @var array
     */
    var $metas = array(
        //'http' => array(
        //    'Content-Script-Type' => 'text/javascript' ,
        //    'Content-Style-Type' => 'text/css') ,
        'meta' => array() ,
        'link' => array() ,
        'script' => array());

    /**
     * Array of strings to be inserted in the head tag of HTML documents
     *
     * @var array
     */
    var $htmlHeadStrings = array();
    /**
     * Custom variables that will always be assigned to the template
     *
     * @var array
     */
    var $templateVars = array();

    /**
     * User extra information for cache id, like language, user groups
     *
     * @var boolean
     */
    var $use_extra_cache_id = true;

    /**
     * *#@-
     */

    /**
     * *#@+
     *
     * @tasktype 10 Initialization
     */
    /**
     * Initializes this theme
     *
     * Upon initialization, the theme creates its template engine and instanciates the
     * plug-ins from the specified {@link $plugins} list. If the theme is a 2.0 theme, that does not
     * display redirection messages, the HTTP redirections system is disabled to ensure users will
     * see the redirection screen.
     *
     * @param array $options
     * @return bool
     */
    function xoInit($options = array())
    {
        $this->path = XOOPS_THEME_PATH . '/' . $this->folderName;
        $this->url = XOOPS_THEME_URL . '/' . $this->folderName;
        $this->template = null;
        $this->template = new XoopsTpl();
        $this->template->currentTheme =& $this;
        $this->template->assign_by_ref('xoTheme', $this);
        $this->template->assign(array(
            'xoops_theme' => $GLOBALS['xoopsConfig']['theme_set'] ,
            'xoops_imageurl' => XOOPS_THEME_URL . '/' . $GLOBALS['xoopsConfig']['theme_set'] . '/',
            'xoops_themecss' => xoops_getcss($GLOBALS['xoopsConfig']['theme_set']),
            'xoops_requesturi' => htmlspecialchars($_SERVER['REQUEST_URI'], ENT_QUOTES),
            'xoops_sitename' => htmlspecialchars($GLOBALS['xoopsConfig']['sitename'], ENT_QUOTES),
            'xoops_slogan' => htmlspecialchars($GLOBALS['xoopsConfig']['slogan'], ENT_QUOTES),
            'xoops_dirname' => isset($GLOBALS['xoopsModule'])&& is_object($GLOBALS['xoopsModule']) ? $GLOBALS['xoopsModule']->getVar('dirname') : 'system',
            'xoops_banner' => ($GLOBALS['xoopsConfig']['banners'] && $this->renderBanner) ? xoops_getbanner() : '&nbsp;',
            'xoops_pagetitle' => isset($GLOBALS['xoopsModule']) && is_object($GLOBALS['xoopsModule']) ? $GLOBALS['xoopsModule']->getVar('name') : htmlspecialchars($GLOBALS['xoopsConfig']['slogan'], ENT_QUOTES)));

        if (isset($GLOBALS['xoopsUser']) && is_object($GLOBALS['xoopsUser'])) {
            $this->template->assign(array(
                'xoops_isuser' => true,
				'xoops_avatar' => XOOPS_UPLOAD_URL . "/" . $GLOBALS['xoopsUser']->getVar('user_avatar'),
                'xoops_userid' => $GLOBALS['xoopsUser']->getVar('uid'),
                'xoops_uname' => $GLOBALS['xoopsUser']->getVar('uname'),
                'xoops_name' => $GLOBALS['xoopsUser']->getVar('name'),
                'xoops_isadmin' => $GLOBALS['xoopsUserIsAdmin'],
                'xoops_usergroups' => $GLOBALS['xoopsUser']->getGroups()));
        } else {
            $this->template->assign(array(
                'xoops_isuser' => false,
                'xoops_isadmin' => false,
                'xoops_usergroups' => array(XOOPS_GROUP_ANONYMOUS)));
        }

        // Meta tags
        $config_handler =& xoops_gethandler('config');
        $criteria = new CriteriaCompo(new Criteria('conf_modid', 0));
        $criteria->add(new Criteria('conf_catid', XOOPS_CONF_METAFOOTER));
        $config = $config_handler->getConfigs($criteria, true);
        foreach (array_keys($config) as $i) {
            $name = $config[$i]->getVar('conf_name', 'n');
            $value = $config[$i]->getVar('conf_value', 'n');
            if (substr($name, 0, 5) == 'meta_') {
                $this->addMeta('meta', substr($name, 5), $value);
            } else {
                // prefix each tag with 'xoops_'
                $this->template->assign("xoops_$name", $value);
            }
        }
        // Load global javascript
        $this->addScript('include/xoops.js');
        $this->loadLocalization();

        if ($this->bufferOutput) {
            ob_start();
        }
        $GLOBALS['xoTheme'] =& $this;
        $GLOBALS['xoopsTpl'] =& $this->template;
        // Instanciate and initialize all the theme plugins
        foreach ($this->plugins as $k => $bundleId) {
            if (!is_object($bundleId)) {
                $this->plugins[$bundleId] = null;
                $this->plugins[$bundleId] = new $bundleId();
                $this->plugins[$bundleId]->theme =& $this;
                $this->plugins[$bundleId]->xoInit();
                unset($this->plugins[$k]);
            }
        }
        return true;
    }

    /**
     * Generate cache id based on extra information of language and user groups
     *
     * User groups other than anonymous should be detected to avoid disclosing group sensitive contents
     *
     * @param string $cache_id raw cache id
     * @param string $extraString extra string
     * @return string complete cache id
     */
    function generateCacheId($cache_id, $extraString = '')
    {
        static $extra_string;
        if (!$this->use_extra_cache_id) {
            return $cache_id;
        }

        if (empty($extraString)) {
            if (empty($extra_string)) {
                // Generate language section
                $extra_string = $GLOBALS['xoopsConfig']['language'];
                // Generate group section
                if (!isset($GLOBALS['xoopsUser']) || !is_object($GLOBALS['xoopsUser'])) {
                    $extra_string .= '|' . XOOPS_GROUP_ANONYMOUS;
                } else {
                    $groups = $GLOBALS['xoopsUser']->getGroups();
                    sort($groups);
                    // Generate group string for non-anonymous groups,
                    // XOOPS_DB_PASS and XOOPS_DB_NAME (before we find better variables) are used to protect group sensitive contents
                    $extra_string .= '|' . implode(',', $groups) . substr(md5(XOOPS_DB_PASS . XOOPS_DB_NAME), 0, strlen(XOOPS_DB_USER) * 2);
                }
            }
            $extraString = $extra_string;
        }
        $cache_id .= '|' . $extraString;
        return $cache_id;
    }

    /**
     * xos_opal_Theme::checkCache()
     *
     * @return
     */
    function checkCache()
    {
        if ($_SERVER['REQUEST_METHOD'] != 'POST' && $this->contentCacheLifetime) {
            $template = $this->contentTemplate ? $this->contentTemplate : 'db:system_dummy.html';
            $this->template->caching = 2;
            $this->template->cache_lifetime = $this->contentCacheLifetime;
            $uri = str_replace(XOOPS_URL, '', $_SERVER['REQUEST_URI']);
            // Clean uri by removing session id
            if (defined('SID') && SID && strpos($uri, SID)) {
                $uri = preg_replace("/([\?&])(" . SID . "$|" . SID . "&)/", "\\1", $uri);
            }
            $this->contentCacheId = $this->generateCacheId($uri);
            if ($this->template->is_cached($template, $this->contentCacheId)) {
                $xoopsLogger =& XoopsLogger::getInstance();
                $xoopsLogger->addExtra($template, sprintf('Cached (regenerates every %d seconds)', $this->contentCacheLifetime));
                $this->render(null, null, $template);
                return true;
            }
        }
        return false;
    }

    /**
     * Render the page
     *
     * The theme engine builds pages from 2 templates: canvas and content.
     *
     * A module can call this method directly and specify what templates the theme engine must use.
     * If render() hasn't been called before, the theme defaults will be used for the canvas and
     * page template (and xoopsOption['template_main'] for the content).
     *
     * @param string $canvasTpl The canvas template, if different from the theme default
     * @param string $pageTpl The page template, if different from the theme default (unsupported, 2.3+ only)
     * @param string $contentTpl The content template
     * @param array $vars Template variables to send to the template engine
     */
    function render($canvasTpl = null, $pageTpl = null, $contentTpl = null, $vars = array())
    {
        if ($this->renderCount) {
            return false;
        }
        $xoopsLogger =& XoopsLogger::getInstance();
        $xoopsLogger->startTime('Page rendering');
        //  @internal : Lame fix to ensure the metas specified in the xoops config page don't appear twice
        $old = array(
            'robots',
            'keywords',
            'description',
            'rating',
            'author',
            'copyright');
        foreach ($this->metas['meta'] as $name => $value) {
            if (in_array($name, $old)) {
                $this->template->assign("xoops_meta_$name", htmlspecialchars($value, ENT_QUOTES));
                unset($this->metas['meta'][$name]);
            }
        }
        if ($canvasTpl) {
            $this->canvasTemplate = $canvasTpl;
        }
        if ($contentTpl) {
            $this->contentTemplate = $contentTpl;
        }
        if (!empty($vars)) {
            $this->template->assign($vars);
        }
        if ($this->contentTemplate) {
            $this->content = $this->template->fetch($this->contentTemplate, $this->contentCacheId);
        }
        if ($this->bufferOutput) {
            $this->content .= ob_get_contents();
            ob_end_clean();
        }
        $this->template->assign_by_ref('xoops_contents', $this->content);
        // We assume no overlap between $GLOBALS['xoopsOption']['xoops_module_header'] and $this->template->get_template_vars( 'xoops_module_header' ) ?
        $header = empty($GLOBALS['xoopsOption']['xoops_module_header']) ? $this->template->get_template_vars('xoops_module_header') : $GLOBALS['xoopsOption']['xoops_module_header'];
        $this->template->assign('xoops_module_header', $this->renderMetas(null, true) . "\n" . $header);

        if (!empty($GLOBALS['xoopsOption']['xoops_pagetitle'])) {
            $this->template->assign('xoops_pagetitle', $GLOBALS['xoopsOption']['xoops_pagetitle']);
        }
        // Do not cache the main (theme.html) template output
        $this->template->caching = 0;
        $this->template->display($this->path . '/' . $this->canvasTemplate);
        $this->renderCount++;
        $xoopsLogger->stopTime('Page rendering');
    }

    /**
     * Load localization information
     *
     * Folder structure for localization:
     *                                                                             <ul>themes/themefolder/english
     *                                                                                 <li>main.php - language definitions</li>
     *                                                                                 <li>style.css - localization stylesheet</li>
     *                                                                                 <li>script.js - localization script</li>
     *                                                                             </ul>
     */
    function loadLocalization($type = "main")
    {
        $language = xoops_getConfigOption('language');
        // Load global localization stylesheet if available
        if (file_exists($GLOBALS['xoops']->path('language/' . $language . '/style.css'))) {
            $this->addStylesheet($GLOBALS['xoops']->url('language/' . $language . '/style.css'));
        }
        if (!file_exists($this->path . '/language/' . $language)) {
            return true;
        }
        $this->addLanguage($type);
        // Load theme localization stylesheet and scripts if available
        if (file_exists($this->path . '/language/' . $language . '/script.js')) {
            $this->addScript($this->url . '/language/' . $language . '/script.js');
        }
        if (file_exists($this->path . '/language/' . $language . '/style.css')) {
            $this->addStylesheet($this->url . '/language/' . $language . '/style.css');
        }
        return true;
    }

    /**
     * Load theme specific language constants
     *
     * @param string $type language type, like 'main', 'admin'; Needs to be declared in theme xo-info.php
     * @param string $language specific language
     */
    function addLanguage($type = "main", $language = null)
    {
        $language = is_null($language) ? $GLOBALS["xoopsConfig"]["language"] : $language;
        if (!file_exists($fileinc = $GLOBALS['xoops']->path($this->resourcePath("/language/{$language}/{$type}.php")))) {
            if (!file_exists($fileinc = $GLOBALS['xoops']->path($this->resourcePath( "/language/english/{$type}.php")))) {
                return false;
            }
        }
        $ret = include_once $fileinc;
        return $ret;
    }

    /**
     * *#@+
     *
     * @tasktype 20 Manipulating page meta-information
     */
    /**
     * Adds script code to the document head
     *
     * This methods allows the insertion of an external script file (if $src is provided), or
     * of a script snippet. The file URI is parsed to take benefit of the theme resource
     * overloading system.
     *
     * The $attributes parameter allows you to specify the attributes that will be added to the
     * inserted <script> tag. If unspecified, the <var>type</var> attribute value will default to
     * 'text/javascript'.
     *
     * <code>
     * // Add an external script using a physical path
     * $theme->addScript( 'www/script.js', null, '' );
     * $theme->addScript( 'modules/newbb/script.js', null, '' );
     * // Specify attributes for the <script> tag
     * $theme->addScript( 'mod_xoops_SiteManager#common.js', array( 'type' => 'application/x-javascript' ), '' );
     * // Insert a code snippet
     * $theme->addScript( null, array( 'type' => 'application/x-javascript' ), 'window.open("Hello world");' );
     * </code>
     *
     * @param string $src path to an external script file
     * @param array $attributes hash of attributes to add to the <script> tag
     * @param string $content Code snippet to output within the <script> tag
     * @return void
     */
    function addScript($src = '', $attributes = array(), $content = '')
    {
        if (empty($attributes)) {
            $attributes = array();
        }
        if (!empty($src)) {
            $src = $GLOBALS['xoops']->url($this->resourcePath($src));
            $attributes['src'] = $src;
        }
        if (!empty($content)) {
            $attributes['_'] = $content;
        }
        if (!isset($attributes['type'])) {
            $attributes['type'] = 'text/javascript';
        }
        $this->addMeta('script', $src, $attributes);
    }


    /**
     * Add StyleSheet or CSS code to the document head
     *
     * @param string $src path to .css file
     * @param array $attributes name => value paired array of attributes such as title
     * @param string $content CSS code to output between the <style> tags (in case $src is empty)
     * @return void
     */
    function addStylesheet($src = '', $attributes = array(), $content = '')
    {
        if (empty($attributes)) {
            $attributes = array();
        }
        if (!empty($src)) {
            $src = $GLOBALS['xoops']->url($this->resourcePath($src));
            $attributes['href'] = $src;
        }
        if (!isset($attributes['type'])) {
            $attributes['type'] = 'text/css';
        }
        if (!empty($content)) {
            $attributes['_'] = $content;
        }
        $this->addMeta('stylesheet', $src, $attributes);
    }

    /**
     * Add a <link> to the header
     *
     * @param string $rel Relationship from the current doc to the anchored one
     * @param string $href URI of the anchored document
     * @param array $attributes Additional attributes to add to the <link> element
     */
    function addLink($rel, $href = '', $attributes = array())
    {
        if (empty($attributes)) {
            $attributes = array();
        }
        if (!empty($href)) {
            $attributes['href'] = $href;
        }
        $this->addMeta('link', $rel, $attributes);
    }

    /**
     * Set a meta http-equiv value
     */
    function addHttpMeta($name, $value = null)
    {
        if (isset($value)) {
            return $this->addMeta('http', $name, $value);
        }
        unset($this->metas['http'][$name]);
    }

    /**
     * Change output page meta-information
     */
    function addMeta($type = 'meta', $name = '', $value = '')
    {
        if (!isset($this->metas[$type])) {
            $this->metas[$type] = array();
        }
        if (!empty($name)) {
            $this->metas[$type][$name] = $value;
        } else {
            $this->metas[$type][] = $value;
        }
        return $value;
    }

    /**
     * xos_opal_Theme::headContent()
     *
     * @param mixed $params
     * @param mixed $content
     * @param mixed $smarty
     * @param mixed $repeat
     * @return
     */
    function headContent($params, $content, &$smarty, &$repeat)
    {
        if (!$repeat) {
            $this->htmlHeadStrings[] = $content;
        }
    }

    /**
     * xos_opal_Theme::renderMetas()
     *
     * @param mixed $type
     * @param mixed $return
     * @return
     */
    function renderMetas($type = null, $return = false)
    {
        $str = '';
        if (!isset($type)) {
            foreach (array_keys($this->metas) as $type) {
                $str .= $this->renderMetas($type, true);
            }
            $str .= implode("\n", $this->htmlHeadStrings);
        } else {
            switch ($type) {
                case 'script':
                    foreach ($this->metas[$type] as $attrs) {
                        $str .= "<script" . $this->renderAttributes($attrs) . ">";
                        if (@$attrs['_']) {
                            $str .= "\n//<![CDATA[\n" . $attrs['_'] . "\n//]]>";
                        }
                        $str .= "</script>\n";
                    }
                    break;
                case 'link':
                    foreach ($this->metas[$type] as $rel => $attrs) {
                        $str .= '<link rel="' . $rel . '"' . $this->renderAttributes($attrs) . " />\n";
                    }
                    break;
                case 'stylesheet':
                    foreach ($this->metas[$type] as $attrs) {
                        if (@$attrs['_']) {
                            $str .= '<style' . $this->renderAttributes($attrs) . ">\n/* <![CDATA[ */\n" . $attrs['_'] . "\n/* //]]> */\n</style>";
                        } else {
                            $str .= '<link rel="stylesheet"' . $this->renderAttributes($attrs) . " />\n";
                        }
                    }
                    break;
                case 'http':
                    foreach ($this->metas[$type] as $name => $content) {
                        $str .= '<meta http-equiv="' . htmlspecialchars($name, ENT_QUOTES) . '" content="' . htmlspecialchars($content, ENT_QUOTES) . "\" />\n";
                    }
                    break;
                default:
                    foreach ($this->metas[$type] as $name => $content) {
                        $str .= '<meta name="' . htmlspecialchars($name, ENT_QUOTES) . '" content="' . htmlspecialchars($content, ENT_QUOTES) . "\" />\n";
                    }
                    break;
            }
        }
        if ($return) {
            return $str;
        }
        echo $str;
        return true;
    }

    /**
     * Generates a unique element ID
     *
     * @param string $tagName
     * @return string
     */
    function genElementId($tagName = 'xos')
    {
        static $cache = array();
        if (!isset($cache[$tagName])) {
            $cache[$tagName] = 1;
        }
        return $tagName . '-' . $cache[$tagName] ++;
    }

    /**
     * Transform an attributes collection to an XML string
     *
     * @param array $coll
     * @return string
     */
    function renderAttributes($coll)
    {
        $str = '';
        foreach ($coll as $name => $val) {
            if ($name != '_') {
                $str .= ' ' . $name . '="' . htmlspecialchars($val, ENT_QUOTES) . '"';
            }
        }
        return $str;
    }

    /**
     * Return a themable file resource path
     *
     * @param string $path
     * @return string
     */
    function resourcePath($path)
    {
        if (substr($path, 0, 1) == '/') {
            $path = substr($path, 1);
        }

        if (file_exists(XOOPS_ROOT_PATH . "/{$this->themesPath}/{$this->folderName}/{$path}")) {
            return "{$this->themesPath}/{$this->folderName}/{$path}";
        }

        if (file_exists(XOOPS_ROOT_PATH . "/themes/{$this->folderName}/{$path}")) {
            return "themes/{$this->folderName}/{$path}";
        }
        return $path;
    }
}

?>