source: extensions/Random_Header/main.inc.php @ 6231

<?php
/*
Plugin Name: Random Header
Version: 2.0.e
Description: Random Header allow you to show in the header a random picture from the choosen categorie, as a normal image, or as a background
Plugin URI: http://phpwebgallery.net/ext/extension_view.php?eid=188
Author: repie38
Author URI: http://www.pierre-b.com
*/

if (!defined('PHPWG_ROOT_PATH')) die('Hacking attempt!');
DEFINE('RH_VERSION','v2.0.e');
define('RH_PATH' , PHPWG_PLUGINS_PATH . basename(dirname(__FILE__)) . '/');

if (! function_exists('get_file_contents')) {
  function get_file_contents($url, $totalTries = 5)
         {
                $Tries = 0;
                do
                 {
                                if ($Tries > 0) sleep(1); # Wait for a sec before retrieving again
                                $contents = @file_get_contents($url);
                                $Tries++;
                 } while ($Tries <= $totalTries && $contents === FALSE);
                 if ($contents == "") $contents = FALSE;
                 return $contents;
         }
}

class RandomHeader
{
    var $rh_config;
        
        function load_config()
    {
        $x = get_file_contents( dirname(__FILE__).'/data.dat' );
                
        if ($x!==false)
                $this->rh_config = unserialize($x);

                foreach (str_replace(" ", "_", get_pwg_themes()) as $pwg_template) {
                          if (empty($this->rh_config[$pwg_template]['selected_cat']))  {

                                $this->rh_config[$pwg_template]['selected_cat'] = '0';
                $this->rh_config[$pwg_template]['active_on_picture']='off';
                                $this->rh_config[$pwg_template]['head_css']='';
                                $this->rh_config[$pwg_template]['img_css']='';
                                $this->rh_config[$pwg_template]['mode_background']='off';
                                $this->rh_config[$pwg_template]['concat_before'] ='off' ;
                                $this->rh_config[$pwg_template]['concat_after'] ='off' ;

                $this->save_config();
                }
                }

    }
    function save_config()
    {
        $file = fopen( dirname(__FILE__).'/data.dat', 'w' );
        fwrite($file, serialize($this->rh_config) );
        fclose( $file );
    }
    function plugin_admin_menu($menu)
    {
        array_push($menu,
            array(
                'NAME' => 'Random Header',
                'URL' => get_admin_plugin_menu_link(dirname(__FILE__).'/admin/rh_admin.php')
            ));
        return $menu;
    }

        function randombanner(){
                global $page;
                global $template;
                global $conf;
                global $user;
                $usertheme=str_replace(" ", "_", $user['template'].'/'.$user['theme'] );
                if ( !defined('IN_ADMIN') && isset($page['body_id']) && ($page['body_id']!='thePicturePage' || $this->rh_config[$usertheme]['active_on_picture']=='on') ) {

                        $result = pwg_query('SELECT '.IMAGES_TABLE.'.path  FROM '.IMAGES_TABLE.' , '.IMAGE_CATEGORY_TABLE.' WHERE '.IMAGES_TABLE.'.`id` = '.IMAGE_CATEGORY_TABLE.'.`image_id` AND '.IMAGE_CATEGORY_TABLE.'.category_id = ' . $this->rh_config[$usertheme]['selected_cat'] . ' ORDER BY RAND() LIMIT 0,1');
                        if (mysql_num_rows($result) > 0) {
                                $toto = mysql_fetch_row($result);

                                if ($this->rh_config[$usertheme]['mode_background']=='on') {
                                        $template->append('head_elements','<style>#theHeader{background: url('.$toto[0].') no-repeat;'. $this->rh_config[$usertheme]['head_css'] .'}</style>');
                                }
                                else {
                                        if ($this->rh_config[$usertheme]['img_css']!='' || $this->rh_config[$usertheme]['head_css']!='')
                                                $template->append('head_elements','<style>#theHeader{'. $this->rh_config[$usertheme]['head_css'] .'}#theHeader #RandomImage{'. $this->rh_config[$usertheme]['img_css'] .'}</style>');
                                        $page['page_banner'] = ($this->rh_config[$usertheme]['concat_before']=='on') ? $conf['page_banner'] : '';
                                        $page['page_banner'].= '<img id="RandomImage" src="'.$toto[0].'">';
                                        $page['page_banner'].= ($this->rh_config[$usertheme]['concat_after']=='on') ? $conf['page_banner'] : '';
                                }
                        }
                }
        }


}
$obj = new RandomHeader();
$obj->load_config();

add_event_handler('loc_begin_page_header', array(&$obj, 'randombanner') );
add_event_handler('get_admin_plugin_menu_links', array(&$obj, 'plugin_admin_menu') );
set_plugin_data($plugin['id'], $obj)


?>