2 // This file is part of Moodle - http://moodle.org/
4 // Moodle is free software: you can redistribute it and/or modify
5 // it under the terms of the GNU General Public License as published by
6 // the Free Software Foundation, either version 3 of the License, or
7 // (at your option) any later version.
9 // Moodle is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
14 // You should have received a copy of the GNU General Public License
15 // along with Moodle. If not, see <http://www.gnu.org/licenses/>.
17 // This file is part of BasicLTI4Moodle
19 // BasicLTI4Moodle is an IMS BasicLTI (Basic Learning Tools for Interoperability)
20 // consumer for Moodle 1.9 and Moodle 2.0. BasicLTI is a IMS Standard that allows web
21 // based learning tools to be easily integrated in LMS as native ones. The IMS BasicLTI
22 // specification is part of the IMS standard Common Cartridge 1.1 Sakai and other main LMS
23 // are already supporting or going to support BasicLTI. This project Implements the consumer
24 // for Moodle. Moodle is a Free Open source Learning Management System by Martin Dougiamas.
25 // BasicLTI4Moodle is a project iniciated and leaded by Ludo(Marc Alier) and Jordi Piguillem
26 // at the GESSI research group at UPC.
27 // SimpleLTI consumer for Moodle is an implementation of the early specification of LTI
28 // by Charles Severance (Dr Chuck) htp://dr-chuck.com , developed by Jordi Piguillem in a
29 // Google Summer of Code 2008 project co-mentored by Charles Severance and Marc Alier.
31 // BasicLTI4Moodle is copyright 2009 by Marc Alier Forment, Jordi Piguillem and Nikolas Galanis
32 // of the Universitat Politecnica de Catalunya http://www.upc.edu
33 // Contact info: Marc Alier Forment granludo @ gmail.com or marc.alier @ upc.edu
36 * This file contains all necessary code to view a lti activity instance
40 * @copyright 2009 Marc Alier, Jordi Piguillem, Nikolas Galanis
42 * @copyright 2009 Universitat Politecnica de Catalunya http://www.upc.edu
44 * @author Jordi Piguillem
45 * @author Nikolas Galanis
46 * @author Chris Scribner
47 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
50 require_once('../../config.php');
51 require_once($CFG->dirroot.'/mod/lti/lib.php');
52 require_once($CFG->dirroot.'/mod/lti/locallib.php');
54 $id = optional_param('id', 0, PARAM_INT); // Course Module ID, or
55 $l = optional_param('l', 0, PARAM_INT); // lti ID
57 if ($l) { // Two ways to specify the module
58 $lti = $DB->get_record('lti', array('id' => $l), '*', MUST_EXIST);
59 $cm = get_coursemodule_from_instance('lti', $lti->id, $lti->course, false, MUST_EXIST);
62 $cm = get_coursemodule_from_id('lti', $id, 0, false, MUST_EXIST);
63 $lti = $DB->get_record('lti', array('id' => $cm->instance), '*', MUST_EXIST);
66 $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
68 $tool = lti_get_tool_by_url_match($lti->toolurl);
70 $toolconfig = lti_get_type_config($tool->id);
72 $toolconfig = array();
75 $PAGE->set_cm($cm, $course); // set's up global $COURSE
76 $context = context_module::instance($cm->id);
77 $PAGE->set_context($context);
79 $url = new moodle_url('/mod/lti/view.php', array('id'=>$cm->id));
82 $launchcontainer = lti_get_launch_container($lti, $toolconfig);
84 if ($launchcontainer == LTI_LAUNCH_CONTAINER_EMBED_NO_BLOCKS) {
85 $PAGE->set_pagelayout('frametop'); //Most frametops don't include footer, and pre-post blocks
86 $PAGE->blocks->show_only_fake_blocks(); //Disable blocks for layouts which do include pre-post blocks
87 } else if ($launchcontainer == LTI_LAUNCH_CONTAINER_REPLACE_MOODLE_WINDOW) {
88 redirect('launch.php?id=' . $cm->id);
90 $PAGE->set_pagelayout('incourse');
93 require_login($course);
95 // Mark viewed by user (if required).
96 $completion = new completion_info($course);
97 $completion->set_module_viewed($cm);
99 add_to_log($course->id, "lti", "view", "view.php?id=$cm->id", "$lti->id");
101 $pagetitle = strip_tags($course->shortname.': '.format_string($lti->name));
102 $PAGE->set_title($pagetitle);
103 $PAGE->set_heading($course->fullname);
105 // Print the page header
106 echo $OUTPUT->header();
108 if ($lti->showtitlelaunch) {
109 // Print the main part of the page
110 echo $OUTPUT->heading(format_string($lti->name, true, array('context' => $context)));
113 if ($lti->showdescriptionlaunch && $lti->intro) {
114 echo $OUTPUT->box($lti->intro, 'generalbox description', 'intro');
117 if ( $launchcontainer == LTI_LAUNCH_CONTAINER_WINDOW ) {
118 echo "<script language=\"javascript\">//<![CDATA[\n";
119 echo "window.open('launch.php?id=".$cm->id."','lti');";
122 echo "<p>".get_string("basiclti_in_new_window", "lti")."</p>\n";
124 // Request the launch content with an object tag
125 echo '<object id="contentframe" height="600px" width="100%" type="text/html" data="launch.php?id='.$cm->id.'"></object>';
127 //Output script to make the object tag be as large as possible
129 <script type="text/javascript">
131 YUI().use("yui2-dom", function(Y) {
132 //Take scrollbars off the outer document to prevent double scroll bar effect
133 document.body.style.overflow = "hidden";
135 var dom = Y.YUI2.util.Dom;
136 var frame = document.getElementById("contentframe");
138 var padding = 15; //The bottom of the iframe wasn\'t visible on some themes. Probably because of border widths, etc.
142 var resize = function(){
143 var viewportHeight = dom.getViewportHeight();
145 if(lastHeight !== Math.min(dom.getDocumentHeight(), viewportHeight)){
147 frame.style.height = viewportHeight - dom.getY(frame) - padding + "px";
149 lastHeight = Math.min(dom.getDocumentHeight(), dom.getViewportHeight());
155 setInterval(resize, 250);
165 echo $OUTPUT->footer();