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<?php
/****************************************************************/
/* ATutor */
/****************************************************************/
/* Copyright (c) 2002-2009 */
/* Inclusive Design Institute */
/* http://atutor.ca */
/* */
/* 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. */
/****************************************************************/
// $Id$
define('AT_INCLUDE_PATH', 'include/');
require(AT_INCLUDE_PATH.'vitals.inc.php');

$cid = $_GET['cid'] = intval($_GET['cid']);

if ($cid == 0) {
header('Location: '.$_base_href.'index.php');
exit;
}

/* show the content page */
$result = $contentManager->getContentPage($cid);

if (!($content_row = mysql_fetch_assoc($result))) {
$_pages['content.php']['title_var'] = 'missing_content';
$_pages['content.php']['parent'] = 'index.php';
$_pages['content.php']['ignore'] = true;


require(AT_INCLUDE_PATH.'header.inc.php');

$msg->addError('PAGE_NOT_FOUND');
$msg->printAll();

require (AT_INCLUDE_PATH.'footer.inc.php');
exit;
} /* else: */

if (defined('AT_FORCE_GET_FILE') && AT_FORCE_GET_FILE) {
$course_base_href = 'get.php/';
} else {
$course_base_href = 'content/' . $_SESSION['course_id'] . '/';
}

/* the "heading navigation": */
$path = $contentManager->getContentPath($cid);

if ($content_row['content_path']) {
$content_base_href = $content_row['content_path'].'/';
}

$parent_headings = '';
$num_in_path = count($path);

/* the page title: */
$page_title = '';
$page_title .= $content_row['title'];

for ($i=0; $i<$num_in_path; $i++) {
$content_info = $path[$i];
if ($_SESSION['prefs']['PREF_NUMBERING']) {
if ($contentManager->_menu_info[$content_info['content_id']]['content_parent_id'] == 0) {
$top_num = $contentManager->_menu_info[$content_info['content_id']]['ordering'];
$parent_headings .= $top_num;
} else {
$top_num = $top_num.'.'.$contentManager->_menu_info[$content_info['content_id']]['ordering'];
$parent_headings .= $top_num;
}
if ($_SESSION['prefs']['PREF_NUMBERING']) {
$path[$i]['content_number'] = $top_num . ' ';
}
$parent_headings .= ' ';
}
}

if ($_SESSION['prefs']['PREF_NUMBERING']) {
if ($top_num != '') {
$top_num = $top_num.'.'.$content_row['ordering'];
$page_title .= $top_num.' ';
} else {
$top_num = $content_row['ordering'];
$page_title .= $top_num.' ';
}
}

$parent = 0;

foreach ($path as $i=>$page) {
// When login is a student, remove content folder from breadcrumb path as content folders are
// just toggles for students. Keep content folder in breadcrumb path for instructors as they
// can edit content folder title.
if (!authenticate(AT_PRIV_CONTENT, AT_PRIV_RETURN) &&
$contentManager->_menu_info[$page['content_id']]['content_type'] == CONTENT_TYPE_FOLDER) {
unset($path[$i]);
continue;
}

if ($contentManager->_menu_info[$page['content_id']]['content_type'] == CONTENT_TYPE_FOLDER)
$content_url = 'mods/_core/editor/edit_content_folder.php?cid='.$page['content_id'];
else
$content_url = 'content.php?cid='.$page['content_id'];

if (!$parent) {
$_pages[$content_url]['title'] = $page['content_number'] . $page['title'];
$_pages[$content_url]['parent'] = 'index.php';
} else {
$_pages[$content_url]['title'] = $page['content_number'] . $page['title'];
$_pages[$content_url]['parent'] = 'mods/_core/editor/edit_content_folder.php?cid='.$parent;
}

$_pages[$content_url]['ignore'] = true;
$parent = $page['content_id'];
}
$last_page = array_pop($_pages);
$_pages['content.php'] = $last_page;

reset($path);
$first_page = current($path);

/* the content test extension page */
$content_test_ids = array(); //the html
$content_test_rs = $contentManager->getContentTestsAssoc($cid);
while ($content_test_row = mysql_fetch_assoc($content_test_rs)){
$content_test_ids[] = $content_test_row;
}

/*TODO***************BOLOGNA***************REMOVE ME**********/
/* the content forums extension page*/
$content_forum_ids = array(); //the html
$content_forum_rs = $contentManager->getContentForumsAssoc($cid);
while ($content_forum_row = mysql_fetch_assoc($content_forum_rs)){
$content_forum_ids[] = $content_forum_row;
}

// use any styles that were part of the imported document, except on the mobile theme.
// $_custom_css = $_base_href.'headstuff.php?cid='.$cid.SEP.'path='.urlEncode($_base_href.$course_base_href.$content_base_href);
if (is_mobile_device == false) {
if ($content_row['use_customized_head'] && strlen($content_row['head']) > 0)
{
$_custom_head .= $content_row['head'];
}
}
global $_custom_head;
$_custom_head .= '
<script language="javascript" type="text/javascript">
//<!--
jQuery(".tooltip").tooltip();
//-->
</script>
';

save_last_cid($cid);

if (isset($top_num) && $top_num != (int) $top_num) {
$top_num = substr($top_num, 0, strpos($top_num, '.'));
}
// used by header.inc.php
$_tool_shortcuts = $contentManager->getToolShortcuts($content_row);

/* if i'm an admin then let me see content, otherwise only if released */
$released_status = $contentManager->isReleased($cid);

if ($released_status === TRUE || authenticate(AT_PRIV_CONTENT, AT_PRIV_RETURN)) {
//if it has test and forum associated with it, still display it even if the content is empty
if ($content_row['text'] == '' && (empty($content_test_ids) && empty($content_forum_ids))){
$msg->addInfo('NO_PAGE_CONTENT');
$savant->assign('body', '');
} else {
if ($released_status !== TRUE) {
/* show the instructor that this content hasn't been released yet */
$infos = array('NOT_RELEASED', AT_date(_AT('announcement_date_format'), $released_status, AT_DATE_UNIX_TIMESTAMP));
$msg->addInfo($infos);
unset($infos);
}

$pre_test_id = $contentManager->getPretest($cid);

if (intval($pre_test_id) > 0)
{
if (authenticate(AT_PRIV_CONTENT, AT_PRIV_RETURN)) {
$msg->addInfo('PRETEST');
}
else {
header('Location: '.url_rewrite('mods/_standard/tests/test_intro.php?tid='.$pre_test_id.SEP.'cid='.$cid, AT_PRETTY_URL_IS_HEADER));
exit;
}
}

// if one of the prerequisite test(s) has expired, student cannot view the content
if (intval($pre_test_id) != -1 || authenticate(AT_PRIV_CONTENT, AT_PRIV_RETURN))
{
// find whether the body has alternatives defined
list($has_text_alternative, $has_audio_alternative, $has_visual_alternative, $has_sign_lang_alternative)
= provide_alternatives($cid, $content_row['text'], true);

// apply alternatives
if (intval($_GET['alternative']) > 0) {
$content = provide_alternatives($cid, $content_row['text'], false, intval($_GET['alternative']));
} else {
$content = provide_alternatives($cid, $content_row['text']);
}
$content = format_content($content, $content_row['formatting'], $glossary);

$content_array = get_content_table($content);

// Create the array of alternative information for generating the AFA tool bar
$alt_infos = array();
$pause_image = find_image("pause.png");

if($has_text_alternative){
$alt_infos['has_text_alternative'] = array('3', _AT('apply_text_alternatives'), _AT('stop_apply_text_alternatives'), $pause_image, find_image('text_alternative.png'));
}
if($has_audio_alternative){
$alt_infos['has_audio_alternative'] = array('1', _AT('apply_audio_alternatives'), _AT('stop_apply_audio_alternatives'), $pause_image, find_image('audio_alternative.png'));
}
if($has_visual_alternative){
$alt_infos['has_visual_alternative'] = array('4', _AT('apply_visual_alternatives'), _AT('stop_apply_visual_alternatives'), $pause_image, find_image('visual_alternative.png'));
}
if($has_sign_lang_alternative){
$alt_infos['has_sign_lang_alternative'] = array('2', _AT('apply_sign_lang_alternatives'), _AT('stop_apply_sign_lang_alternatives'), $pause_image, find_image('sign_lang_alternative.png'));
}

$savant->assign('content_table', $content_array[0]);
$savant->assign('body', $content_array[1]);
$savant->assign('cid', $cid);
$savant->assign('alt_infos', $alt_infos);

//assign test pages if there are tests associated with this content page
if (!empty($content_test_ids)){
$savant->assign('test_message', $content_row['test_message']);
$savant->assign('test_ids', $content_test_ids);
} else {
$savant->assign('test_message', '');
$savant->assign('test_ids', array());
}

/*TODO***************BOLOGNA***************REMOVE ME**********/
//assign forum pages if there are forums associated with this content page
if (!empty($content_forum_ids)){
$savant->assign('forum_message','');
$savant->assign('forum_ids', $content_forum_ids);
} else {
$savant->assign('forum_message', '');
$savant->assign('forum_ids', array());
}

// get the content that the standard and add-on modules want to display on the content page
$module_status_bits = AT_MODULE_STATUS_ENABLED;
$module_type_bits = AT_MODULE_TYPE_STANDARD + AT_MODULE_TYPE_EXTRA;

$module_list = $moduleFactory->getModules($module_status_bits, $module_type_bits, $sort = TRUE);
$module_contents = '';
foreach($module_list as $key=>$obj) {
$module_content = $obj->getContent($cid);
if (!empty($module_content)){
$module_contents .= '<div id="'.str_replace('/', '-', $key).'" class="content-from-module">'.$module_content.'</div>';
}
}
if ($module_contents <> '') $savant->assign('module_contents', $module_contents);
}
}
} else {
$infos = array('NOT_RELEASED', AT_date(_AT('announcement_date_format'), $released_status, AT_DATE_UNIX_TIMESTAMP));
$msg->addInfo($infos);
unset($infos);
}

$savant->assign('content_info', _AT('page_info', AT_date(_AT('inbox_date_format'), $content_row['last_modified'], AT_DATE_MYSQL_DATETIME), $content_row['revision'], AT_date(_AT('inbox_date_format'), $content_row['release_date'], AT_DATE_MYSQL_DATETIME)));

require(AT_INCLUDE_PATH.'header.inc.php');

$savant->display('content.tmpl.php');

//save last visit page.
$_SESSION['last_visited_page'] = $server_protocol . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];

require (AT_INCLUDE_PATH.'footer.inc.php');
?>
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