<?php

/*

 * Snapr

 * Version 0.1 beta 1

 * Copyright (C) 2007 Dan Fuhry

 *

 * This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied

 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.

 */

//

// "Random Image" sidebar block

//

function gal_sidebar_block()

{

  global $db, $session, $paths, $template, $plugins; // Common objects

  $q = $db->sql_query('SELECT img_id,img_title FROM '.table_prefix.'gallery WHERE is_folder=0;');

  if ( !$q )

    $db->_die();

  $images = array();

  while ( $row = $db->fetchrow() )

  {

    $id = intval($row['img_id']);

    $images[$id] = $row['img_title'];

  }

  // Loop through all gallery images until we find one we can read (typically on the first try, but you never know...)

  $my_image = false;

  while ( count($images) > 0 )

  {

    $rand = array_rand($images);

    $image = $images[$rand];

    $acl = $session->fetch_page_acl(strval($rand), 'Gallery');

    if ( $acl->get_permissions('read') )

    {

      $my_image = $image;

      break;

    }

    unset($images[$rand]);

  }

  if ( $my_image )

  {

    // Generate sidebar HTML

    $image_link = '<div style="padding: 5px; text-align: center;">

                     <a href="' . makeUrlNS('Gallery', $rand) . '">

                       <img alt="&lt;thumbnail&gt;" src="' . makeUrlNS('Special', 'GalleryFetcher/thumb/' . $rand) . '" style="border-width: 0; display: block; margin: 0 auto 5px auto;" />

                       <span style="color: black;">' . htmlspecialchars($my_image) . '</span>

                     </a>

                   </div>';

  }

  else

  {

    $image_link = 'No images in the gallery.';

  }

  $template->sidebar_widget('Random image', $image_link);

}

$plugins->attachHook('compile_template', 'gal_sidebar_block();');

?>