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- <?php // $Id: document_slideshow.inc.php 21529 2009-06-20 14:01:55Z ivantcholakov $
- /*
- ==============================================================================
- Dokeos - elearning and course management software
- Copyright (c) 2004-2008 Dokeos SPRL
- Copyright (c) 2003 Ghent University (UGent)
- Copyright (c) 2001 Universite catholique de Louvain (UCL)
- For a full list of contributors, see "credits.txt".
- The full license can be read in "license.txt".
- This program is free software; you can redistribute it 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.
- See the GNU General Public License for more details.
- Contact: Dokeos, rue du Corbeau, 108, B-1030 Brussels, Belgium, info@dokeos.com
- ==============================================================================
- */
- /**
- * This is a plugin for the documents tool. It looks for .jpg, .jpeg, .gif, .png
- * files (since these are the files that can be viewed in a browser) and creates
- * a slideshow with it by allowing to go to the next/previous image.
- * You can also have a quick overview (thumbnail view) of all the images in
- * that particular folder.
- *
- * Each slideshow is folder based. Only
- * the images of the chosen folder are shown.
- *
- * This file has two large sections.
- * 1. code that belongs in document.php, but to avoid clutter I put the code here
- * (not present) 2. the function resize_image that handles the image resizing
- *
- * @author Patrick Cool, responsible author
- * @author Roan Embrechts, minor cleanup
- * @package dokeos.document
- ==============================================================================
- */
- /*
- ==============================================================================
- general code that belongs in document.php
-
- this code should indeed go in documents.php but since document.php is already a really ugly file with
- too much things in one file , I decided to put the code for document.php here and to include this
- file into document.php
- ==============================================================================
- */
- $accepted_extensions = array('.jpg','.jpeg','.gif','.png');
- // resetting the images of the slideshow = destroying the slideshow
- if (isset($_GET['action']) && $_GET['action'] == 'exit_slideshow') {
- $_SESSION['image_files_only'] = null;
- unset($image_files_only);
- }
- // We check if there are images in this folder by searching the extensions for .jpg, .gif, .png
- // grabbing the list of all the documents of this folder
- //$all_files=$fileList['name'];
- $array_to_search = (is_array($docs_and_folders)) ? $docs_and_folders : array();
- if (count($array_to_search) > 0) {
- while(list ($key) = each ($array_to_search)) {
- $all_files[] = basename($array_to_search[$key]['path']);
- //echo basename($array_to_search[$key]['path']).'<br>';
- }
- }
- $image_present = 0;
- if (count($all_files) > 0) {
- foreach ($all_files as $file) {
- $slideshow_extension = strrchr($file,'.');
- $slideshow_extension = strtolower($slideshow_extension);
- if (in_array($slideshow_extension,$accepted_extensions)) {
- $image_present = 1;
- $image_files_only[] = $file;
- }
- }
- }
- $tablename_column = (isset($_GET['tablename_column']) ? Security::remove_XSS($_GET['tablename_column']) : 0);
- if ($tablename_column == 0) {
- $tablename_column = 1;
- } else {
- $tablename_column = intval($tablename_column) - 1;
- }
- $tablename_direction = (isset($_GET['tablename_direction']) ? Security::remove_XSS($_GET['tablename_direction']) : 'ASC');
- $image_files_only = sort_files($array_to_search);
- $_SESSION['image_files_only'] = $image_files_only;
- function sort_files($table) {
-
- global $tablename_direction, $accepted_extensions;
- $temp = array();
- foreach ($table as $file_array) {
- if ($file_array['filetype'] == 'file') {
- $slideshow_extension = strrchr($file_array['path'],'.');
- $slideshow_extension = strtolower($slideshow_extension);
- if (in_array($slideshow_extension,$accepted_extensions)) {
- $temp[] = array('file', basename($file_array['path']), $file_array['size'], $file_array['insert_date']);
- }
- }
- }
- if ($tablename_direction == 'DESC') {
- usort($temp, 'rsort_table');
- } else {
- usort($temp, 'sort_table');
- }
- $final_array = array();
- foreach ($temp as $file_array) {
- $final_array[] = $file_array[1];
- }
- return $final_array;
- }
- function sort_table($a, $b) {
- global $tablename_column;
- return strnatcmp($a[$tablename_column], $b[$tablename_column]);
- }
- function rsort_table($a, $b) {
- global $tablename_column;
- return strnatcmp($b[$tablename_column], $a[$tablename_column]);
- }
-
- ?>
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