source: trunk/include/xpress_block_render.php @ 44

<?php
        require_once dirname( __FILE__ ) .'/xml.php' ;
        require_once dirname( __FILE__ ) .'/xpress_cache.php' ;
        
        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)
        {
                $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'];
                }
                return $theme_name;
        }

        function get_block_stylesheet_url($mydirname)
        {
                $mydirpath = XOOPS_ROOT_PATH . '/modules/' . $mydirname;
                $select_theme = get_xpress_theme_name($mydirname);
                $style_file = $mydirpath . '/wp-content/themes/' . $select_theme . '/blocks/style.css';
                if (file_exists($style_file))
                        return XOOPS_URL . '/modules/' .$mydirname . '/wp-content/themes/' . $select_theme . '/blocks/style.css';
                else    
                        return XOOPS_URL . '/modules/' .$mydirname . '/wp-content/themes/xpress_default/blocks/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)
        {
                $mydirpath = 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))
                        $block_file =  XOOPS_ROOT_PATH . '/modules/' .$mydirname . '/wp-content/themes/xpress_default/blocks/' . $file_name;
                return $block_file;
        }
        
        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);                 
                                        
                if (!is_null($wpdb)){
                        xpress_block_css_set($mydirname);
                        
                        $block_theme_file = get_block_file_path($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. 
                        
                        xpress_block_cache_write($mydirname,$cache_title. $blockID, $block);
                } else {
                        $block = xpress_block_cache_read($mydirname,$cache_title. $blockID);
                }
                return  $block;
        }
        
?>