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