source: trunk/include/xpress_block_render.php @ 135

<?php
        require_once dirname( __FILE__ ) .'/xml.php' ;
        require_once dirname( __FILE__ ) .'/xpress_cache.php' ;
        global $xoops_config;
        
        if (!is_object($xoops_config)){ // is call other modules
                require_once dirname(dirname( __FILE__ )) .'/class/config_from_xoops.class.php' ;
                $xoops_config = new ConfigFromXoops;
        }
        
        function xpress_block_cache_write($mydirname,$block_name,$block)
        {
                        $xml = xpress_XML_serialize($block);
                        $xml_name = $block_name . '.xml';
                        xpress_cache_write($mydirname,$xml_name,$xml);
        }
        function xpress_block_cache_read($mydirname,$block_name)
        {
                        $xml_name = $block_name . '.xml';
                        $xml_data = xpress_cache_read($mydirname,$xml_name);
                        return @xpress_XML_unserialize($xml_data);
        }
        
        function get_block_id($mydirname,$func_file,$options)
        {
                $options_string = '';
                foreach ($options as $val){
                        if (!empty($options_string)) $options_string .='|';
                        $options_string .= $val;
                }
                        $xoopsDB =& Database::getInstance();
                        $block_tbl = $xoopsDB->prefix('newblocks');     
                        $module_dir = XOOPS_ROOT_PATH . '/modules/' . $mydirname;

                        $sql = "SELECT bid FROM $block_tbl WHERE (func_file LIKE '$func_file') AND (options LIKE '$options_string')";
                        $result =  $xoopsDB->query($sql, 0, 0);
                        if ($xoopsDB->getRowsNum($result)  > 0){
                                $row = $xoopsDB->fetchArray($result);
                                $block_id = $row['bid'];
                        }
                        return $block_id;
        }

        function get_xpress_theme_name($mydirname)
        {
                global $wpdb;
                
                if (is_null($wpdb)){
                        $xoopsDB =& Database::getInstance();
                        $wp_prefix = $mydirname;
                        if ($wp_prefix == 'wordpress') $wp_prefix = 'wp';

                        $module_tbl = $xoopsDB->prefix($wp_prefix).'_options';  
                        $theme_name = '';       

                        $sql = "SELECT option_value FROM $module_tbl WHERE option_name LIKE 'template'";
                        $result =  $xoopsDB->query($sql, 0, 0);
                        if ($xoopsDB->getRowsNum($result)  > 0){
                                $row = $xoopsDB->fetchArray($result);
                                $theme_name = $row['option_value'];
                        }
                } else {
                        $theme_name = get_option('template');
                }
                return $theme_name;
        }

        function get_block_stylesheet_url($mydirname)
        {
                global $xoops_config;
                $mydirpath = $xoops_config->xoops_root_path . '/modules/' . $mydirname;
                $select_theme = get_xpress_theme_name($mydirname);
                $style_file = $mydirpath . '/wp-content/themes/' . $select_theme . '/blocks/block_style.css';
                if (file_exists($style_file))
                        return $xoops_config->xoops_url . '/modules/' .$mydirname . '/wp-content/themes/' . $select_theme . '/blocks/block_style.css';
                else    
                        return $xoops_config->xoops_url . '/modules/' .$mydirname . '/wp-content/themes/xpress_default/blocks/block_style.css';
        }

        function xpress_block_css_set($mydirname = '')
        {
                $style_url =  get_block_stylesheet_url($mydirname);
                  
                $tplVars =& $GLOBALS['xoopsTpl']->get_template_vars();
                $csslink = "\n".'<link rel="stylesheet" type="text/css" media="screen" href="'. $style_url .'" />';
                        if(array_key_exists('xoops_block_header', $tplVars)) {
                                if (!strstr($tplVars['xoops_block_header'],$csslink)) {
                                        $GLOBALS['xoopsTpl']->assign('xoops_block_header',$tplVars['xoops_block_header'].$csslink);
                                }
                        } else {
                                $GLOBALS['xoopsTpl']->assign('xoops_block_header',$csslink);
                        }
        }
        
        function get_block_file_path($mydirname,$file_name)
        {
                global $xoops_config;
                $mydirpath = $xoops_config->xoops_root_path . '/modules/' . $mydirname;
                $select_theme = get_xpress_theme_name($mydirname);
                $block_file = $mydirpath . '/wp-content/themes/' . $select_theme . '/blocks/' . $file_name;

                if (!file_exists($block_file))
                        $block_file =  $xoops_config->xoops_root_path . '/modules/' .$mydirname . '/wp-content/themes/xpress_default/blocks/' . $file_name;
                return $block_file;
        }
        
    function xpress_block_cache_found($mydirname,$block_name)
    {
        global $xoops_config;
        if(defined('XOOPS_ROOT_PATH')){
                $cache_dir = XOOPS_ROOT_PATH . '/cache/';
        } else {
                $cache_dir = $xoops_config->xoops_root_path . '/cache/';
        }
        $xml_name = $block_name . '.xml';

        $filename = $cache_dir .$mydirname . '_' . $xml_name;
                $cache_time = 0;
//        if (file_exists($filename) && ((time() - filemtime($filename)) < $cache_time)) {
        if (file_exists($filename)) {
            return true;
       } else {
                        return false;
                }
    } 
        
        function xpress_block_render($mydirname,$block_function_name,$options)
        {
                global $wpdb;
                $func_file = $block_function_name;
                $call_theme_function_name = str_replace(".php", "", $block_function_name);
                $inc_theme_file_name = $call_theme_function_name . '_theme.php';
                $cache_title = str_replace(".php", "", $block_function_name);
                $blockID =get_block_id($mydirname,$func_file,$options);         

                $this_url = '/modules/'. $mydirname;
                $call_url = $_SERVER['REQUEST_URI'];
                
                xpress_block_css_set($mydirname);
                if (strstr($call_url,$this_url)){                       
                        $block_theme_file = get_block_file_path($mydirname,$inc_theme_file_name);
                        require_once $block_theme_file;
                        $block = $call_theme_function_name($options);           //The block name and the called function name should be assumed to be the same name. 
                } else {
                        if (xpress_block_cache_found($mydirname,$cache_title. $blockID)){
                                $xml = xpress_block_cache_read($mydirname,$cache_title. $blockID);
                                $block = $xml['block'];
                        } else {
                                $block['err_message'] = sprintf(_MB_XPRESS_BLOCK_CACHE_ERR, '<a href="' . XOOPS_URL . '/modules/' . $mydirname . '">' . $mydirname .'</a>');
                        }
                }

                $templates_file = 'db:'.$mydirname. '_' . str_replace(".php", ".html", $block_function_name);
                $tpl =& new XoopsTpl() ;
                $tpl->assign( 'block' , $block ) ;
                $ret['content'] = $tpl->fetch( $templates_file ) ;
                return $ret ;
        }
        
        function xpress_block_cache_refresh()
        {
                global $xoops_db;
                $mid = get_xpress_modid();
                $sql = "SELECT bid,options,func_file FROM " . get_xoops_prefix() . "newblocks WHERE mid = $mid AND visible = 1";
                $blocks = $xoops_db->get_results($sql);
                $mydirname = get_xpress_dir_name();
                require_once get_xpress_dir_path() . '/include/xpress_block_render.php';

                foreach($blocks as $block){
                        $func_file = $block->func_file;
                        $call_theme_function_name = str_replace(".php", "", $func_file);
                        $inc_theme_file_name = str_replace(".php", "", $func_file) . '_theme.php';
                        $cache_title = str_replace(".php", "", $func_file);
                        $blockID = $block->bid;
                        $options = explode("|", $block->options);

                        $block_theme_file = get_block_file_path($mydirname,$inc_theme_file_name);
                        require_once $block_theme_file;
                        $render = $call_theme_function_name($options);          //The block name and the called function name should be assumed to be the same name.                    
                        $render_array['block'] = $render;
                        $render_array['block']['options'] = $block->options;
                        if (xpress_block_cache_found($mydirname,$cache_title. $blockID)){       
                                $render_serialize = xpress_XML_serialize($render_array);
                                $render_md5 = md5($render_serialize);

                                $cache_serialize = xpress_cache_read($mydirname,$cache_title. $blockID.'.xml');
                                $cache_md5 = md5($cache_serialize);
                                
                                if ($render_md5 != $cache_md5){
                                        xpress_block_cache_write($mydirname,$cache_title. $blockID, $render_array);
                                }
                        } else {
                                xpress_block_cache_write($mydirname,$cache_title. $blockID, $render_array);
                        }
                }
        }
        
        function xpress_unnecessary_block_cache_delete()
        {
                global $xoops_db,$xoops_config;
                $mid = get_xpress_modid();
                $sql = "SELECT bid,options,func_file FROM " . get_xoops_prefix() . "newblocks WHERE mid = $mid AND visible = 1";
                $blocks = $xoops_db->get_results($sql);
                $mydirname = get_xpress_dir_name();
                require_once get_xpress_dir_path() . '/include/xpress_block_render.php';

                $pattern ='';
                foreach($blocks as $block){
                        $cache_file_name = $mydirname . '_'. str_replace(".php", "", $block->func_file) . $block->bid;
                        if (!empty($pattern))  $pattern .= '|';
                        $pattern .= $cache_file_name;
                }
                $pattern = '(' . $pattern . ')';
                
                $cache_dir = $xoops_config->xoops_root_path . '/cache/';
                $cache_time = 0;
        if ($dh = opendir($cache_dir)) {
            while (($file = readdir($dh)) !== false) {
                if (preg_match('/^' . preg_quote($mydirname) . '/', $file)) {
                        if(! preg_match('/' . $pattern . '/', $file)) {
                        unlink($cache_dir.$file);
                    }
                } 
            } 
            closedir($dh);
        } 
    } 
        
?>