source: extensions/Random_Header/main.inc.php @ 7330

<?php
/*
Plugin Name: Random Header
Version: 2.2
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://piwigo.org/ext/extension_view.php?eid=188
Author: repie38
Author URI: 
*/

if (!defined('PHPWG_ROOT_PATH')) die('Hacking attempt!');
DEFINE('RH_VERSION','v2.2');
define('RH_PATH' , PHPWG_PLUGINS_PATH . basename(dirname(__FILE__)) . '/');

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

                foreach (get_pwg_themes() as $pwg_templateID => $pwg_template) {
                
                          if (empty($this->rh_config[$pwg_templateID]['selected_cat']))  {

                                $this->rh_config[$pwg_templateID]['selected_cat'] = '0';
                $this->rh_config[$pwg_templateID]['active_on_picture']='off';
                                $this->rh_config[$pwg_templateID]['head_css']='';
                                $this->rh_config[$pwg_templateID]['img_css']='';
                                $this->rh_config[$pwg_templateID]['mode_background']='off';
                                $this->rh_config[$pwg_templateID]['concat_before'] ='off' ;
                                $this->rh_config[$pwg_templateID]['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;
                
                $usertheme=$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)


?>