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167 lines
6.4 KiB
167 lines
6.4 KiB
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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require_once('../../config.php');
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require_once($CFG->dirroot.'/mod/scorm/locallib.php');
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$id = optional_param('id', '', PARAM_INT); // Course Module ID, or
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$a = optional_param('a', '', PARAM_INT); // scorm ID
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$scoid = required_param('scoid', PARAM_INT); // sco ID.
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$delayseconds = 2; // Delay time before sco launch, used to give time to browser to define API.
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if (!empty($id)) {
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if (! $cm = get_coursemodule_from_id('scorm', $id)) {
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print_error('invalidcoursemodule');
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}
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if (! $course = $DB->get_record('course', array('id' => $cm->course))) {
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print_error('coursemisconf');
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}
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if (! $scorm = $DB->get_record('scorm', array('id' => $cm->instance))) {
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print_error('invalidcoursemodule');
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}
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} else if (!empty($a)) {
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if (! $scorm = $DB->get_record('scorm', array('id' => $a))) {
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print_error('coursemisconf');
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}
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if (! $course = $DB->get_record('course', array('id' => $scorm->course))) {
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print_error('coursemisconf');
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}
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if (! $cm = get_coursemodule_from_instance('scorm', $scorm->id, $course->id)) {
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print_error('invalidcoursemodule');
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}
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} else {
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print_error('missingparameter');
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}
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$PAGE->set_url('/mod/scorm/loadSCO.php', array('scoid' => $scoid, 'id' => $cm->id));
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if (!isloggedin()) { // Prevent login page from being shown in iframe.
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// Using simple html instead of exceptions here as shown inside iframe/object.
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echo html_writer::start_tag('html');
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echo html_writer::tag('head', '');
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echo html_writer::tag('body', get_string('loggedinnot'));
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echo html_writer::end_tag('html');
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exit;
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}
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require_login($course, false, $cm, false); // Call require_login anyway to set up globals correctly.
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// Check if SCORM is available.
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scorm_require_available($scorm);
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$context = context_module::instance($cm->id);
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// Forge SCO URL.
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list($sco, $scolaunchurl) = scorm_get_sco_and_launch_url($scorm, $scoid, $context);
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if ($sco->scormtype == 'asset') {
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$attempt = scorm_get_last_attempt($scorm->id, $USER->id);
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$element = (scorm_version_check($scorm->version, SCORM_13)) ? 'cmi.completion_status' : 'cmi.core.lesson_status';
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$value = 'completed';
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scorm_insert_track($USER->id, $scorm->id, $sco->id, $attempt, $element, $value);
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}
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// Trigger the SCO launched event.
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scorm_launch_sco($scorm, $sco, $cm, $context, $scolaunchurl);
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header('Content-Type: text/html; charset=UTF-8');
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if ($sco->scormtype == 'asset') {
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// HTTP 302 Found => Moved Temporarily.
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header('Location: ' . $scolaunchurl);
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// Provide a short feedback in case of slow network connection.
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echo html_writer::start_tag('html');
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echo html_writer::tag('body', html_writer::tag('p', get_string('activitypleasewait', 'scorm')));
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echo html_writer::end_tag('html');
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exit;
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}
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// We expect a SCO: select which API are we looking for.
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$lmsapi = (scorm_version_check($scorm->version, SCORM_12) || empty($scorm->version)) ? 'API' : 'API_1484_11';
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echo html_writer::start_tag('html');
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echo html_writer::start_tag('head');
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echo html_writer::tag('title', 'LoadSCO');
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?>
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<script type="text/javascript">
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//<![CDATA[
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var myApiHandle = null;
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var myFindAPITries = 0;
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function myGetAPIHandle() {
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myFindAPITries = 0;
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if (myApiHandle == null) {
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myApiHandle = myGetAPI();
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}
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return myApiHandle;
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}
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function myFindAPI(win) {
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while ((win.<?php echo $lmsapi; ?> == null) && (win.parent != null) && (win.parent != win)) {
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myFindAPITries++;
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// Note: 7 is an arbitrary number, but should be more than sufficient
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if (myFindAPITries > 7) {
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return null;
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}
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win = win.parent;
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}
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return win.<?php echo $lmsapi; ?>;
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}
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// hun for the API - needs to be loaded before we can launch the package
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function myGetAPI() {
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var theAPI = myFindAPI(window);
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if ((theAPI == null) && (window.opener != null) && (typeof(window.opener) != "undefined")) {
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theAPI = myFindAPI(window.opener);
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}
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if (theAPI == null) {
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return null;
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}
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return theAPI;
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}
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function doredirect() {
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if (myGetAPIHandle() != null) {
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location = "<?php echo $scolaunchurl ?>";
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}
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else {
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document.body.innerHTML = "<p><?php echo get_string('activityloading', 'scorm');?>" +
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"<span id='countdown'><?php echo $delayseconds ?></span> " +
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"<?php echo get_string('numseconds', 'moodle', '');?>. " +
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"<?php echo addslashes($OUTPUT->pix_icon('wait', '', 'scorm')); ?></p>";
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var e = document.getElementById("countdown");
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var cSeconds = parseInt(e.innerHTML);
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var timer = setInterval(function() {
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if( cSeconds && myGetAPIHandle() == null ) {
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e.innerHTML = --cSeconds;
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} else {
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clearInterval(timer);
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document.body.innerHTML = "<p><?php echo get_string('activitypleasewait', 'scorm');?></p>";
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location = "<?php echo $scolaunchurl ?>";
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}
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}, 1000);
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}
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}
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//]]>
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</script>
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<noscript>
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<meta http-equiv="refresh" content="0;url=<?php echo $scolaunchurl ?>" />
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</noscript>
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<?php
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echo html_writer::end_tag('head');
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echo html_writer::tag('body', html_writer::tag('p', get_string('activitypleasewait', 'scorm')), array('onload' => "doredirect();"));
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echo html_writer::end_tag('html');
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