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<?php
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// $Id: Exp $
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/**
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* @file
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* Handles integration of Smarty templates with the Drupal theme system.
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*/
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/**
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* @function _smarty_init
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* Include the Smarty class and phptemplate.engine which are both required by
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* smarty; also check writeablility of the templates_c directory. A static
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* variable is used so we only do the checks once.
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*/
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function _smarty_init() {
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static $ok;
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if ( isset($ok) ) {
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return $ok;
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}
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$doclink = t(' Please refer to the documentation on the <a href="http://www.drupal.org/project/smarty">smarty project page</a>.');
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// phptemplate functions are inherited wherever possible
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$phptemplate_path = './themes/engines/phptemplate/phptemplate.engine';
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if ( file_exists($phptemplate_path) ) {
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include_once $phptemplate_path;
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} else {
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drupal_set_message(t('smarty could not find phptemplate.engine for inclusion.').$doclink, 'error');
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$ok = FALSE;
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}
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// find the Smarty class
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if (!class_exists('Smarty')) { // prevent redeclaration
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$smarty_path = dirname(__FILE__).'/smarty/libs/Smarty.class.php';
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@include_once $smarty_path;
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if ( !class_exists('Smarty') ) {
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drupal_set_message(t('smarty could not find Smarty.class.php for inclusion.').$doclink, 'error');
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$ok = FALSE;
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}
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}
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$compile_dir = dirname(__FILE__).'/templates_c';
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if ( !is_writeable($compile_dir) ) {
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drupal_set_message(t('smarty cannot write to the compiled template cache.').$doclink, 'error');
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$ok = FALSE;
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}
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if ( $ok!==FALSE ) {
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$ok = TRUE;
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}
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return $ok;
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}
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function smarty_init($template) {
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_smarty_init();
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return phptemplate_init($template);
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}
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function smarty_templates($directory = 'themes') {
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// only return smarty themes if there is no problem with initialisation
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if ( _smarty_init() ) {
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return drupal_system_listing('^page\.tpl$', $directory, 'filename');
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} else {
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return array();
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}
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}
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function smarty_regions() {
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return phptemplate_regions();
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}
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// function _smarty_callback($hook, $variables = array(), $suggestions = array()) {
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// return _phptemplate_callback($hook, $variables, $suggestions);
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// }
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// function _smarty_default_variables($hook, $variables) { }
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function smarty_features() {
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return phptemplate_features();
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}
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function smarty_page($content, $show_blocks = TRUE) {
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return phptemplate_page($content, $show_blocks);
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}
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function smarty_node($node, $teaser = 0, $page = 0) {
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return phptemplate_node($node, $teaser, $page);
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}
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function smarty_comment($comment, $links = 0) {
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return phptemplate_comment($comment, $links);
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}
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function smarty_block($block) {
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return phptemplate_block($block);
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}
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function smarty_box($title, $content, $region = 'main') {
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return phptemplate_box($title, $content, $region);
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}
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// This is the only chance to add in some global theme variables (should be implemented in PHPtemplate)
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// Also use the default of .tpl instead of .tpl.php
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function _smarty_default($hook, $variables, $suggestions = array(), $extension = '.tpl') {
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$variables['user'] = $GLOBALS['user'];
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$variables['base_path'] = base_path();
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$variables['path_to_theme'] = path_to_theme();
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return _phptemplate_default($hook, $variables, $suggestions, $extension);
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}
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function &smarty_get_object() {
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static $smarty;
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if ( !isset($smarty) ) {
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$smarty = new Smarty;
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$smarty->template_dir = realpath('./');
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$smarty->compile_dir = variable_get('smarty_compile_dir', dirname(__FILE__).'/templates_c');
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$smarty->compile_check = variable_get('smarty_compile_check', TRUE);
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// $smarty->config_dir = $path.'/configs';
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// $smarty->plugins_dir = array(realpath('themes/engines/smarty/plugins'), $path.'/plugins', 'plugins');
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$smarty->register_function('theme', 'smarty_function_theme');
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$smarty->register_function('theme_links', 'smarty_function_theme_links');
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}
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return $smarty;
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}
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function _smarty_render($file, $variables) {
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$smarty = &smarty_get_object();
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$smarty->_tpl_vars = $variables; // REVISIT could use clear and assign but this is quicker and simpler
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$contents = $smarty->fetch($file);
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return $contents;
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}
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/**
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* Smarty theme function plugin
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* This implements a call to the Drupal theme() function within a Smarty template.
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*/
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function smarty_function_theme($params, &$smarty) {
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$function = array_shift($params);
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if ($func = theme_get_function($function)) {
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return call_user_func_array($func, $params);
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}
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}
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/**
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* Smarty theme_links function plugin
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* Return themed HTML for links
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*/
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function smarty_function_theme_links($params, &$smarty) {
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if ( isset($params['links']) ) {
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if ( !isset($params['class']) ) {
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$params['class'] = 'links';
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}
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if ( isset($params['id']) ) {
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$attribs = array('class' =>$params['class'], 'id' => $params['id']);
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} else {
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$attribs = array('class' =>$params['class']);
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}
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return theme('links', $params['links'], $attribs);
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} else {
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return '';
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}
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}
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