XOOPS Template System¶

namespace Xoops\Core;

class XoopsTpl extends Smarty
{
    protected array $vars = [];
    protected string $currentTheme = '';
    protected array $blocks = [];
    protected bool $isAdmin = false;
}

use Xoops\Core\XoopsTpl;

class XoopsTpl extends Smarty
{
    private static ?XoopsTpl $instance = null;

    private function __construct()
    {
        parent::__construct();
        $this->configureDirectories();
        $this->registerPlugins();
    }

    public static function getInstance(): XoopsTpl
    {
        if (!isset(self::$instance)) {
            self::$instance = new self();
        }
        return self::$instance;
    }
}

public static function getInstance(): XoopsTpl

$xoopsTpl = XoopsTpl::getInstance();

public function assign(
    string|array $tplVar,
    mixed $value = null
): void

$xoopsTpl->assign('page_title', 'Welcome');
$xoopsTpl->assign('user_name', 'John Doe');

// Multiple assignments
$xoopsTpl->assign([
    'items' => $items,
    'total_count' => count($items),
    'show_pagination' => true
]);

public function appendAssign(
    string $tplVar,
    mixed $value
): void

$xoopsTpl->assign('breadcrumbs', ['Home']);
$xoopsTpl->appendAssign('breadcrumbs', 'Blog');
$xoopsTpl->appendAssign('breadcrumbs', 'Posts');
// breadcrumbs = ['Home', 'Blog', 'Posts']

public function getAssignedVars(): array

$vars = $xoopsTpl->getAssignedVars();
foreach ($vars as $name => $value) {
    echo "$name = " . var_export($value, true) . "\n";
}

public function display(
    string $resource,
    string|array $cache_id = null,
    string $compile_id = null,
    object $parent = null
): void

$xoopsTpl->assign('page_title', 'Home');
$xoopsTpl->display('user:index.tpl');

// With absolute path
$xoopsTpl->display(XOOPS_ROOT_PATH . '/templates/user/index.tpl');

public function fetch(
    string $resource,
    string|array $cache_id = null,
    string $compile_id = null,
    object $parent = null
): string

$xoopsTpl->assign('message', 'Hello World');
$html = $xoopsTpl->fetch('user:message.tpl');
echo $html;

// Use for email templates
$emailContent = $xoopsTpl->fetch('mail:notification.tpl');
mail($to, $subject, $emailContent);

public function loadTheme(string $themeName): bool

if ($xoopsTpl->loadTheme('bluemoon')) {
    echo "Theme loaded successfully";
}

public function getCurrentTheme(): string

$currentTheme = $xoopsTpl->getCurrentTheme();
echo "Active theme: $currentTheme";

public function setOutputFilter(string $function): void

// Remove whitespace from output
$xoopsTpl->setOutputFilter('trim');

// Custom filter
function my_output_filter($output) {
    // Minify HTML
    $output = preg_replace('/\s+/', ' ', $output);
    return trim($output);
}
$xoopsTpl->setOutputFilter('my_output_filter');

public function registerPlugin(
    string $type,
    string $name,
    callable $callback
): void

// Register custom modifier
$xoopsTpl->registerPlugin('modifier', 'markdown', function($text) {
    return markdown_parse($text);
});

// Use in template: {$content|markdown}

// Register custom block tag
$xoopsTpl->registerPlugin('block', 'permission', function($params, $content, $smarty, &$repeat) {
    if ($repeat) return;

    // Check permission
    if (has_permission($params['name'])) {
        return $content;
    }
    return '';
});

// Use in template: {permission name="admin"}...{/permission}

namespace Xoops\Core\Theme;

class ThemeManager
{
    protected array $themes = [];
    protected string $activeTheme = '';
    protected string $themeDirectory = '';

    public function getActiveTheme(): string {}
    public function setActiveTheme(string $theme): bool {}
    public function getThemeList(): array {}
    public function themeExists(string $name): bool {}
}

<?php
/**
 * Module Article List Page
 */

include __DIR__ . '/include/common.inc.php';

$xoopsTpl = XoopsTpl::getInstance();

// Check if module is active
$module = xoops_getModuleByDirname('articles');
if (!$module) {
    redirect_header(XOOPS_URL, 3, 'Module not found');
}

// Get item handler
$itemHandler = xoops_getModuleHandler('item', 'articles');

// Get pagination parameters
$page = !empty($_GET['page']) ? (int)$_GET['page'] : 1;
$perPage = $module->getConfig('items_per_page') ?: 10;
$offset = ($page - 1) * $perPage;

// Build criteria
$criteria = new CriteriaCompo();
$criteria->add(new Criteria('status', 1));
$criteria->setSort('published', 'DESC');
$criteria->setLimit($perPage);
$criteria->setStart($offset);

// Fetch items
$items = $itemHandler->getObjects($criteria);
$total = $itemHandler->getCount(new Criteria('status', 1));

// Calculate pagination
$pages = ceil($total / $perPage);

// Assign template variables
$xoopsTpl->assign([
    'module_name' => $module->getName(),
    'items' => $items,
    'total_items' => $total,
    'current_page' => $page,
    'total_pages' => $pages,
    'items_per_page' => $perPage,
    'show_pagination' => $pages > 1
]);

// Add breadcrumbs
$xoopsTpl->assign('xoops_breadcrumbs', [
    ['url' => XOOPS_URL, 'title' => 'Home'],
    ['url' => $module->getUrl(), 'title' => $module->getName()],
    ['title' => 'Articles']
]);

// Display template
$xoopsTpl->display($module->getPath() . '/templates/user/list.tpl');

<?php
/**
 * Custom Smarty block function for permission checking
 */

function smarty_block_permission($params, $content, $smarty, &$repeat)
{
    if ($repeat) return;

    if (!isset($params['name'])) {
        return 'Permission name required';
    }

    $permName = $params['name'];
    $user = $GLOBALS['xoopsUser'];

    // Check if user has permission
    if ($user && $user->isAdmin()) {
        return $content;
    }

    if ($user && check_user_permission($user->uid(), $permName)) {
        return $content;
    }

    return '';
}

$xoopsTpl->registerPlugin('block', 'permission', 'smarty_block_permission');