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dbb0fec9 CS |
1 | <?php |
2 | // This file is part of BasicLTI4Moodle | |
3 | // | |
4 | // BasicLTI4Moodle is an IMS BasicLTI (Basic Learning Tools for Interoperability) | |
5 | // consumer for Moodle 1.9 and Moodle 2.0. BasicLTI is a IMS Standard that allows web | |
6 | // based learning tools to be easily integrated in LMS as native ones. The IMS BasicLTI | |
7 | // specification is part of the IMS standard Common Cartridge 1.1 Sakai and other main LMS | |
8 | // are already supporting or going to support BasicLTI. This project Implements the consumer | |
9 | // for Moodle. Moodle is a Free Open source Learning Management System by Martin Dougiamas. | |
10 | // BasicLTI4Moodle is a project iniciated and leaded by Ludo(Marc Alier) and Jordi Piguillem | |
11 | // at the GESSI research group at UPC. | |
12 | // SimpleLTI consumer for Moodle is an implementation of the early specification of LTI | |
13 | // by Charles Severance (Dr Chuck) htp://dr-chuck.com , developed by Jordi Piguillem in a | |
14 | // Google Summer of Code 2008 project co-mentored by Charles Severance and Marc Alier. | |
15 | // | |
16 | // BasicLTI4Moodle is copyright 2009 by Marc Alier Forment, Jordi Piguillem and Nikolas Galanis | |
17 | // of the Universitat Politecnica de Catalunya http://www.upc.edu | |
18 | // Contact info: Marc Alier Forment granludo @ gmail.com or marc.alier @ upc.edu | |
19 | // | |
20 | // Moodle is free software: you can redistribute it and/or modify | |
21 | // it under the terms of the GNU General Public License as published by | |
22 | // the Free Software Foundation, either version 3 of the License, or | |
23 | // (at your option) any later version. | |
24 | // | |
25 | // Moodle is distributed in the hope that it will be useful, | |
26 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
27 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
28 | // GNU General Public License for more details. | |
29 | // | |
30 | // You should have received a copy of the GNU General Public License | |
31 | // along with Moodle. If not, see <http://www.gnu.org/licenses/>. | |
32 | ||
33 | /** | |
34 | * This file contains all necessary code to view a basiclti activity instance | |
35 | * | |
36 | * @package lti | |
37 | * @copyright 2009 Marc Alier, Jordi Piguillem, Nikolas Galanis | |
38 | * marc.alier@upc.edu | |
39 | * @copyright 2009 Universitat Politecnica de Catalunya http://www.upc.edu | |
40 | * | |
41 | * @author Marc Alier | |
42 | * @author Jordi Piguillem | |
43 | * @author Nikolas Galanis | |
44 | * | |
45 | * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later | |
46 | */ | |
47 | ||
48 | require_once('../../config.php'); | |
49 | require_once($CFG->dirroot.'/mod/lti/lib.php'); | |
50 | require_once($CFG->dirroot.'/mod/lti/locallib.php'); | |
51 | ||
52 | $id = optional_param('id', 0, PARAM_INT); // Course Module ID, or | |
53 | $a = optional_param('a', 0, PARAM_INT); // lti ID | |
54 | ||
55 | if ($id) { | |
56 | if (! $cm = get_coursemodule_from_id("lti", $id)) { | |
57 | throw new moodle_exception('generalexceptionmessage', 'error', '', 'Course Module ID was incorrect'); | |
58 | } | |
59 | ||
60 | if (! $course = $DB->get_record("course", array("id" => $cm->course))) { | |
61 | throw new moodle_exception('generalexceptionmessage', 'error', '', 'Course is misconfigured'); | |
62 | } | |
63 | ||
64 | if (! $basiclti = $DB->get_record("lti", array("id" => $cm->instance))) { | |
65 | throw new moodle_exception('generalexceptionmessage', 'error', '', 'Course module is incorrect'); | |
66 | } | |
67 | ||
68 | } else { | |
69 | if (! $basiclti = $DB->get_record("lti", array("id" => $a))) { | |
70 | throw new moodle_exception('generalexceptionmessage', 'error', '', 'Course module is incorrect'); | |
71 | } | |
72 | if (! $course = $DB->get_record("course", array("id" => $basiclti->course))) { | |
73 | throw new moodle_exception('generalexceptionmessage', 'error', '', 'Course is misconfigured'); | |
74 | } | |
75 | if (! $cm = get_coursemodule_from_instance("lti", $basiclti->id, $course->id)) { | |
76 | throw new moodle_exception('generalexceptionmessage', 'error', '', 'Course Module ID was incorrect'); | |
77 | } | |
78 | } | |
79 | ||
80 | $tool = lti_get_tool_by_url_match($basiclti->toolurl); | |
81 | if($tool){ | |
82 | $toolconfig = lti_get_type_config($tool->id); | |
83 | } else { | |
c4d80efe | 84 | $toolconfig = array(); |
dbb0fec9 CS |
85 | } |
86 | ||
87 | $PAGE->set_cm($cm, $course); // set's up global $COURSE | |
88 | $context = get_context_instance(CONTEXT_MODULE, $cm->id); | |
89 | $PAGE->set_context($context); | |
90 | ||
91 | $url = new moodle_url('/mod/lti/view.php', array('id'=>$cm->id)); | |
92 | $PAGE->set_url($url); | |
93 | ||
57d1dffd | 94 | $launchcontainer = lti_get_launch_container($basiclti, $toolconfig); |
cca9d3f7 | 95 | |
dbb0fec9 CS |
96 | if($launchcontainer == LTI_LAUNCH_CONTAINER_EMBED_NO_BLOCKS){ |
97 | $PAGE->set_pagelayout('frametop'); //Most frametops don't include footer, and pre-post blocks | |
98 | $PAGE->blocks->show_only_fake_blocks(); //Disable blocks for layouts which do include pre-post blocks | |
cca9d3f7 CS |
99 | } else if($launchcontainer == LTI_LAUNCH_CONTAINER_REPLACE_MOODLE_WINDOW) { |
100 | redirect('launch.php?id=' . $cm->id); | |
dbb0fec9 CS |
101 | } else { |
102 | $PAGE->set_pagelayout('incourse'); | |
103 | } | |
104 | ||
105 | require_login($course); | |
106 | ||
107 | add_to_log($course->id, "lti", "view", "view.php?id=$cm->id", "$basiclti->id"); | |
108 | ||
109 | $pagetitle = strip_tags($course->shortname.': '.format_string($basiclti->name)); | |
110 | $PAGE->set_title($pagetitle); | |
111 | $PAGE->set_heading($course->fullname); | |
112 | ||
113 | /// Print the page header | |
114 | echo $OUTPUT->header(); | |
115 | ||
116 | if($basiclti->showtitle) { | |
117 | /// Print the main part of the page | |
118 | echo $OUTPUT->heading(format_string($basiclti->name)); | |
119 | } | |
120 | ||
121 | if($basiclti->showdescription && $basiclti->intro){ | |
122 | echo $OUTPUT->box($basiclti->intro, 'generalbox description', 'intro'); | |
123 | } | |
124 | ||
dbb0fec9 CS |
125 | if ( $launchcontainer == LTI_LAUNCH_CONTAINER_WINDOW ) { |
126 | echo "<script language=\"javascript\">//<![CDATA[\n"; | |
127 | echo "window.open('launch.php?id=".$cm->id."','lti');"; | |
128 | echo "//]]\n"; | |
129 | echo "</script>\n"; | |
130 | echo "<p>".get_string("basiclti_in_new_window", "lti")."</p>\n"; | |
131 | } else { | |
132 | // Request the launch content with an object tag | |
cca9d3f7 | 133 | echo '<object id="contentframe" height="600px" width="100%" type="text/html" data="launch.php?id='.$cm->id.'"></object>'; |
dbb0fec9 CS |
134 | |
135 | //Output script to make the object tag be as large as possible | |
136 | $resize = <<<'SCRIPT' | |
137 | <script type='text/javascript'> | |
138 | //<![CDATA[ | |
139 | (function(){ | |
140 | //Take scrollbars off the outer document to prevent double scroll bar effect | |
141 | document.body.style.overflow = 'hidden'; | |
142 | ||
143 | var dom = YAHOO.util.Dom; | |
144 | var frame = document.getElementById('contentframe'); | |
a390d453 CS |
145 | |
146 | var padding = 15; //The bottom of the iframe wasn't visible on some themes. Probably because of border widths, etc. | |
dbb0fec9 CS |
147 | |
148 | var lastHeight; | |
149 | ||
150 | var resize = function(){ | |
151 | var viewportHeight = dom.getViewportHeight(); | |
152 | ||
153 | if(lastHeight !== Math.min(dom.getDocumentHeight(), viewportHeight)){ | |
a390d453 CS |
154 | |
155 | frame.style.height = viewportHeight - dom.getY(frame) - padding + 'px'; | |
dbb0fec9 CS |
156 | |
157 | lastHeight = Math.min(dom.getDocumentHeight(), dom.getViewportHeight()); | |
158 | } | |
159 | }; | |
160 | ||
161 | resize(); | |
162 | ||
163 | setInterval(resize, 250); | |
164 | })(); | |
165 | //]] | |
166 | </script> | |
167 | SCRIPT; | |
168 | ||
169 | echo $resize; | |
170 | } | |
171 | ||
172 | ||
173 | /// Finish the page | |
174 | echo $OUTPUT->footer(); |