Chamilo is a learning management system focused on ease of use and accessibility
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chamilo-lms/main/document/slideshow.php

313 lines
10 KiB

<?php
/* For licensing terms, see /license.txt */
/**
* @author Julio Montoya Lots of improvements, cleaning, adding security
* @author Patrick Cool patrick.cool@UGent.be Ghent University Mai 2004
* @author Juan Carlos Raña Trabado herodoto@telefonica.net January 2008
* @package chamilo.document
*/
// Language files that need to be included
$language_file = array('slideshow', 'document');
require_once '../inc/global.inc.php';
$noPHP_SELF = true;
$path = Security::remove_XSS($_GET['curdirpath']);
$pathurl = urlencode($path);
$slide_id = Security::remove_XSS($_GET['slide_id']);
if(empty($slide_id))
{
$edit_slide_id = 1;
}
else
{
$edit_slide_id = $slide_id;
}
if ($path != '/') {
$folder = $path.'/';
} else {
$folder = '/';
}
$sys_course_path = api_get_path(SYS_COURSE_PATH);
// Including the functions for the slideshow
require_once 'slideshow.inc.php';
// Breadcrumb navigation
$url = 'document.php?curdirpath='.$pathurl;
$originaltoolname = get_lang('Documents');
$interbreadcrumb[] = array('url' => Security::remove_XSS($url), 'name' => $originaltoolname);
// Because $nametools uses $_SERVER['PHP_SELF'] for the breadcrumbs instead of $_SERVER['REQUEST_URI'], I had to
// bypass the $nametools thing and use <b></b> tags in the $interbreadcrump array
//$url = 'slideshow.php?curdirpath='.$pathurl;
$originaltoolname = get_lang('SlideShow');
//$interbreadcrumb[] = array('url'=>$url, 'name' => $originaltoolname);
Display :: display_header($originaltoolname, 'Doc');
// Loading the slides from the session
if (isset($_SESSION['image_files_only'])) {
$image_files_only = $_SESSION['image_files_only'];
}
// Calculating the current slide, next slide, previous slide and the number of slides
if ($slide_id != 'all') {
$slide = $slide_id ? $slide_id : 0;
$previous_slide = $slide - 1;
$next_slide = $slide + 1;
}
$total_slides = count($image_files_only);
?>
<script language="JavaScript" type="text/javascript">
<!--
function MM_openBrWindow(theURL,winName,features) { //v2.0
window.open(theURL,winName,features);
}
//-->
</script>
<div class="actions">
<?php
if ($slide_id != 'all') {
$image = $sys_course_path.$_course['path'].'/document'.$folder.$image_files_only[$slide];
if (file_exists($image)) {
echo '<div style="float: right; vertical-align: middle; padding-top: 3px; padding-bottom: 3px;"><nobr>';
$a_style = 'margin-left: 0px; margin-right: 0px; padding-left: 0px; padding-right: 0px;';
$img_style = 'margin-left: 5px; margin-right: 5px; padding-left: 0px; padding-right: 0px;';
// Back forward buttons
if ($slide == 0) {
$imgp = 'action_prev_na.png';
$first = '<img src="'.api_get_path(WEB_IMG_PATH).'action_first_na.png" style="'.$img_style.'">';
} else {
$imgp = 'action_prev.png';
$first = '<a href="slideshow.php?slide_id=0&curdirpath='.$pathurl.'" style="'.$a_style.'"><img src="'.api_get_path(WEB_IMG_PATH).'action_first.png" style="'.$img_style.'" title="'.get_lang('FirstSlide').'" alt="'.get_lang('FirstSlide').'"></a>';
}
// First slide
echo $first;
// Previous slide
if ($slide > 0) {
echo '<a href="slideshow.php?slide_id='.$previous_slide.'&amp;curdirpath='.$pathurl.'" style="'.$a_style.'">';
}
echo '<img src="'.api_get_path(WEB_IMG_PATH).$imgp.'" style="'.$img_style.'" title="'.get_lang('Previous').'" alt="'.get_lang('Previous').'">';
if ($slide > 0) {
echo '</a>';
}
// Divider
echo ' [ '.$next_slide.'/'.$total_slides.' ] ';
// Next slide
if ($slide < $total_slides - 1) {
echo '<a href="slideshow.php?slide_id='.$next_slide.'&curdirpath='.$pathurl.'" style="'.$a_style.'">';
}
if ($slide == $total_slides - 1) {
$imgn = 'action_next_na.png';
$last = '<img src="'.api_get_path(WEB_IMG_PATH).'action_last_na.png" style="'.$img_style.'" title="'.get_lang('LastSlide').'" alt="'.get_lang('LastSlide').'">';
} else {
$imgn = 'action_next.png';
$last = '<a href="slideshow.php?slide_id='.($total_slides-1).'&curdirpath='.$pathurl.'" style="'.$a_style.'"><img src="'.api_get_path(WEB_IMG_PATH).'action_last.png" style="'.$img_style.'" title="'.get_lang('LastSlide').'" alt="'.get_lang('LastSlide').'"></a>';
}
echo '<img src="'.api_get_path(WEB_IMG_PATH).$imgn.'" style="'.$img_style.'" title="'.get_lang('Next').'" alt="'.get_lang('Next').'">';
if ($slide > 0) {
echo '</a>';
}
// Last slide
echo $last;
echo '</nobr></div>';
}
}
// Exit the slideshow
echo '<a href="document.php?action=exit_slideshow&curdirpath='.$pathurl.'">'.Display::return_icon('back.png',get_lang('BackTo').' '.get_lang('DocumentsOverview')).get_lang('BackTo').' '.get_lang('DocumentsOverview').'</a>&nbsp;';
// Show thumbnails
if ($slide_id != 'all') {
echo '<a href="slideshow.php?slide_id=all&curdirpath='.$pathurl.'"><img src="'.api_get_path(WEB_IMG_PATH).'thumbnails.png" alt="">'.get_lang('_show_thumbnails').'</a>&nbsp;';
} else {
echo '<img src="'.api_get_path(WEB_IMG_PATH).'thumbnails_na.png" alt="">'.get_lang('_show_thumbnails').'&nbsp;';
}
// Slideshow options
echo '<a href="slideshowoptions.php?curdirpath='.$pathurl.'"><img src="'.api_get_path(WEB_IMG_PATH).'acces_tool.gif" alt="">'.get_lang('_set_slideshow_options').'</a> &nbsp;';
?>
</div>
<?php
echo '<br />';
/* TREATING THE POST DATA FROM SLIDESHOW OPTIONS */
// If we come from slideshowoptions.php we sessionize (new word !!! ;-) the options
if (isset($_POST['Submit'])) {
// We come from slideshowoptions.php
$_SESSION["image_resizing"] = Security::remove_XSS($_POST['radio_resizing']);
if ($_POST['radio_resizing'] == "resizing" && $_POST['width'] != '' && $_POST['height'] != '') {
//echo "resizing";
$_SESSION["image_resizing_width"] = Security::remove_XSS($_POST['width']);
$_SESSION["image_resizing_height"] = Security::remove_XSS($_POST['height']);
} else {
//echo "unsetting the session heighte and width";
$_SESSION["image_resizing_width"] = null;
$_SESSION["image_resizing_height"] = null;
}
}
// The target height and width depends if we choose resizing or no resizing
if ($_SESSION["image_resizing"] == "resizing") {
$target_width = $_SESSION["image_resizing_width"];
$target_height = $_SESSION["image_resizing_height"];
} else {
$image_width = $source_width;
$image_height = $source_height;
}
/* THUMBNAIL VIEW */
// This is for viewing all the images in the slideshow as thumbnails.
$image_tag = array ();
if ($slide_id == 'all') {
$thumbnail_width = 100;
$thumbnail_height = 100;
$row_items = 4;
if (is_array($image_files_only)) {
foreach ($image_files_only as $one_image_file) {
$image = $sys_course_path.$_course['path'].'/document'.$folder.$one_image_file;
if (file_exists($image)) {
$image_height_width = resize_image($image, $thumbnail_width, $thumbnail_height, 1);
$image_height = $image_height_width[0];
$image_width = $image_height_width[1];
$doc_url = ($path && $path !== '/') ? $path.'/'.$one_image_file : $path.$one_image_file;
$image_tag[] = '<img src="download.php?doc_url='.$doc_url.'" border="0" width="'.$image_width.'" height="'.$image_height.'" title="'.$one_image_file.'">';
}
}
}
}
// Creating the table
$html_table = '';
echo '<table align="center" width="760px" border="0" cellspacing="10">';
$i = 0;
$count_image = count($image_tag);
$number_image = 6;
$number_iteration = ceil($count_image/$number_image);
$p = 0;
for ($k = 0; $k < $number_iteration; $k++) {
echo '<tr height="'.$thumbnail_height.'">';
for ($i = 0; $i < $number_image; $i++) {
if (!is_null($image_tag[$p])) {
echo '<td>';
echo '<div align="center"><a href="slideshow.php?slide_id='.$p.'&curdirpath='.$pathurl.' ">'.$image_tag[$p].'</a>';
echo '</div></td>';
}
$p++;
}
echo '</tr>';
}
echo '</table>';
/* ONE AT A TIME VIEW */
// This is for viewing all the images in the slideshow one at a time.
if ($slide_id != 'all') {
if (file_exists($image)) {
$image_height_width = resize_image($image, $target_width, $target_height);
$image_height = $image_height_width[0];
$image_width = $image_height_width[1];
if ($_SESSION['image_resizing'] == 'resizing') {
$height_width_tags = 'width="'.$image_width.'" height="'.$image_height.'"';
}
// Showing the comment of the image, Patrick Cool, 8 april 2005
// This is done really quickly and should be cleaned up a little bit using the API functions
$tbl_documents = Database::get_course_table(TABLE_DOCUMENT);
if ($path == '/') {
$pathpart = '/';
} else {
$pathpart = $path.'/';
}
$sql = "SELECT * FROM $tbl_documents WHERE path='".Database::escape_string($pathpart.$image_files_only[$slide])."'";
$result = Database::query($sql);
$row = Database::fetch_array($result);
echo '<table align="center" border="0" cellspacing="10">';
echo '<tr>';
echo '<td align="center" style="font-size: xx-large; font-weight: bold;">';
echo $row['title'];
echo '</td>';
echo '</tr>';
echo '<tr>';
echo '<td align="center">';
if ($slide < $total_slides - 1 && $slide_id != 'all') {
echo "<a href='slideshow.php?slide_id=".$next_slide."&curdirpath=$pathurl'>";
} else {
echo "<a href='slideshow.php?slide_id=0&curdirpath=$pathurl'>";
}
echo "<img src='download.php?doc_url=$path/".$image_files_only[$slide]."' alt='".$image_files_only[$slide]."' border='0'".$height_width_tags.">";
echo '</a>';
echo '</td>';
echo '</tr>';
echo '<tr>';
echo '<td>';
echo $row['comment'];
echo '</td>';
echo '</tr>';
echo '</table>';
echo '<table align="center" border="0">';
if (api_is_allowed_to_edit(null, true)) {
echo '<tr>';
echo '<td align="center">';
echo '<a href="edit_document.php?'.api_get_cidreq().'&curdirpath='.$pathurl.'&amp;origin=slideshow&amp;origin_opt='.$edit_slide_id.'&amp;file='.urlencode($path).'/'.$image_files_only[$slide].'"><img src="../img/edit.gif" border="0" title="'.get_lang('Modify').'" alt="'.get_lang('Modify').'" /></a><br />';
$aux = explode('.', htmlspecialchars($image_files_only[$slide]));
$ext = $aux[count($aux) - 1];
echo $image_files_only[$slide].' <br />';
list($width, $high) = getimagesize($image);
echo $width.' x '.$high.' <br />';
echo round((filesize($image)/1024), 2).' KB';
echo ' - '.$ext;
echo '</td>';
echo '</tr>';
echo '<tr>';
echo '<td align="center">';
if ($_SESSION['image_resizing'] == 'resizing') {
$resize_info = get_lang('_resizing').'<br />';
$resize_widht = $_SESSION["image_resizing_width"].' x ';
$resize_height = $_SESSION['image_resizing_height'];
} else {
$resize_info = get_lang('_no_resizing').'<br />';
}
echo $resize_info;
echo $resize_widht;
echo $resize_height;
echo '</td>';
echo '</tr>';
}
echo '</table>';
} else {
Display::display_warning_message(get_lang('FileNotFound'));
}
}
Display :: display_footer();