<?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 ( is_object($acl) && $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();');

?>