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<?PHP

/// This page prints a particular instance of aicc/scorm package

    require_once('../../config.php');
    require_once($CFG->dirroot.'/mod/scorm/locallib.php');
    require_once($CFG->libdir . '/completionlib.php');

    $id = optional_param('cm', '', PARAM_INT); // Course Module ID, or
    $a = optional_param('a', '', PARAM_INT); // scorm ID
    $scoid = required_param('scoid', PARAM_INT); // sco ID
    $mode = optional_param('mode', 'normal', PARAM_ALPHA); // navigation mode
    $currentorg = optional_param('currentorg', '', PARAM_RAW); // selected organization
    $newattempt = optional_param('newattempt', 'off', PARAM_ALPHA); // the user request to start a new attempt
    $displaymode = optional_param('display','',PARAM_ALPHA);

    //IE 6 Bug workaround
    if (strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE 6') !== false) {
        @ini_set('zlib.output_compression', 'Off');
        @apache_setenv('no-gzip', 1);
    }

    //IE 9 workaround for Flash bug: MDL-29213
    if (strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE 9') !== false) {
        if (!isset($CFG->additionalhtmlhead)) { //check to make sure set first - that way we can use .=
            $CFG->additionalhtmlhead = '';
        }
        $CFG->additionalhtmlhead .= '<meta http-equiv="X-UA-Compatible" content="IE=8" />';
    }

    if (!empty($id)) {
        if (! $cm = get_coursemodule_from_id('scorm', $id)) {
            print_error('invalidcoursemodule');
        }
        if (! $course = $DB->get_record("course", array("id"=>$cm->course))) {
            print_error('coursemisconf');
        }
        if (! $scorm = $DB->get_record("scorm", array("id"=>$cm->instance))) {
            print_error('invalidcoursemodule');
        }
    } else if (!empty($a)) {
        if (! $scorm = $DB->get_record("scorm", array("id"=>$a))) {
            print_error('invalidcoursemodule');
        }
        if (! $course = $DB->get_record("course", array("id"=>$scorm->course))) {
            print_error('coursemisconf');
        }
        if (! $cm = get_coursemodule_from_instance("scorm", $scorm->id, $course->id)) {
            print_error('invalidcoursemodule');
        }
    } else {
        print_error('missingparameter');
    }

    $url = new moodle_url('/mod/scorm/player.php', array('scoid'=>$scoid, 'cm'=>$cm->id));
    if ($mode !== 'normal') {
        $url->param('mode', $mode);
    }
    if ($currentorg !== '') {
        $url->param('currentorg', $currentorg);
    }
    if ($newattempt !== 'off') {
        $url->param('newattempt', $newattempt);
    }
    $PAGE->set_url($url);
    $forcejs = get_config('scorm','forcejavascript');
    if (!empty($forcejs)) {
        $PAGE->add_body_class('forcejavascript');
    }

    require_login($course->id, false, $cm);

    $strscorms = get_string('modulenameplural', 'scorm');
    $strscorm = get_string('modulename', 'scorm');
    $strpopup = get_string('popup','scorm');
    $strexit = get_string('exitactivity','scorm');

    $coursecontext = get_context_instance(CONTEXT_COURSE, $course->id);

    if ($displaymode == 'popup') {
        $PAGE->set_pagelayout('popup');
    } else {
        $shortname = format_string($course->shortname, true, array('context' => $coursecontext));
        $pagetitle = strip_tags("$shortname: ".format_string($scorm->name));
        $PAGE->set_title($pagetitle);
        $PAGE->set_heading($course->fullname);
    }

    if (!$cm->visible and !has_capability('moodle/course:viewhiddenactivities', $coursecontext)) {
        echo $OUTPUT->header();
        notice(get_string("activityiscurrentlyhidden"));
        echo $OUTPUT->footer();
        die;
    }

    //check if scorm closed
    $timenow = time();
    if ($scorm->timeclose !=0) {
        if ($scorm->timeopen > $timenow) {
            echo $OUTPUT->header();
            echo $OUTPUT->box(get_string("notopenyet", "scorm", userdate($scorm->timeopen)), "generalbox boxaligncenter");
            echo $OUTPUT->footer();
            die;
        } elseif ($timenow > $scorm->timeclose) {
            echo $OUTPUT->header();
            echo $OUTPUT->box(get_string("expired", "scorm", userdate($scorm->timeclose)), "generalbox boxaligncenter");
            echo $OUTPUT->footer();
            die;
        }
    }

    //
    // TOC processing
    //
    $scorm->version = strtolower(clean_param($scorm->version, PARAM_SAFEDIR)); // Just to be safe
    if (!file_exists($CFG->dirroot.'/mod/scorm/datamodels/'.$scorm->version.'lib.php')) {
        $scorm->version = 'scorm_12';
    }
    require_once($CFG->dirroot.'/mod/scorm/datamodels/'.$scorm->version.'lib.php');
    $attempt = scorm_get_last_attempt($scorm->id, $USER->id);
    if (($newattempt=='on') && (($attempt < $scorm->maxattempt) || ($scorm->maxattempt == 0))) {
        $attempt++;
        $mode = 'normal';
    }
    $attemptstr = '&amp;attempt=' . $attempt;

    $result = scorm_get_toc($USER, $scorm, $cm->id, TOCJSLINK, $currentorg, $scoid, $mode, $attempt, true, true);
    $sco = $result->sco;

    if (($mode == 'browse') && ($scorm->hidebrowse == 1)) {
       $mode = 'normal';
    }
    if ($mode != 'browse') {
        if ($trackdata = scorm_get_tracks($sco->id,$USER->id,$attempt)) {
            if (($trackdata->status == 'completed') || ($trackdata->status == 'passed') || ($trackdata->status == 'failed')) {
                $mode = 'review';
            } else {
                $mode = 'normal';
            }
        } else {
            $mode = 'normal';
        }
    }

    add_to_log($course->id, 'scorm', 'view', "player.php?cm=$cm->id&scoid=$sco->id", "$scorm->id", $cm->id);


    $scoidstr = '&amp;scoid='.$sco->id;
    $scoidpop = '&scoid='.$sco->id;
    $modestr = '&amp;mode='.$mode;
    if ($mode == 'browse') {
        $modepop = '&mode='.$mode;
    } else {
        $modepop = '';
    }
    $orgstr = '&currentorg='.$currentorg;

    $SESSION->scorm_scoid = $sco->id;
    $SESSION->scorm_status = 'Not Initialized';
    $SESSION->scorm_mode = $mode;
    $SESSION->scorm_attempt = $attempt;

    // Mark module viewed
    $completion = new completion_info($course);
    $completion->set_module_viewed($cm);

    //
    // Print the page header
    //
    if (empty($scorm->popup) || $displaymode=='popup') {
        $exitlink = '<a href="'.$CFG->wwwroot.'/course/view.php?id='.$scorm->course.'" title="'.$strexit.'">'.$strexit.'</a> ';
        $PAGE->set_button($exitlink);
    }

    $PAGE->requires->yui2_lib('connection');
    $PAGE->requires->data_for_js('scormplayerdata', Array('cwidth'=>$scorm->width,'cheight'=>$scorm->height,
                                                          'popupoptions' => $scorm->options), true);
    $PAGE->requires->js('/mod/scorm/request.js', true);
    $PAGE->requires->js('/lib/cookies.js', true);
    $PAGE->requires->css('/mod/scorm/styles.css');
    echo $OUTPUT->header();

    // NEW IMS TOC
    $PAGE->requires->string_for_js('navigation', 'scorm');
    $PAGE->requires->string_for_js('toc', 'scorm');
    $PAGE->requires->string_for_js('hide', 'moodle');
    $PAGE->requires->string_for_js('show', 'moodle');
    $PAGE->requires->string_for_js('popupsblocked', 'scorm');

    $name = false;

?>
<div id="scormpage">
<div id="tocbox">
<div id='scormapi-parent'>
<script id="external-scormapi" type="text/JavaScript"></script>
</div>
<div id="scormtop">
<?php echo $mode == 'browse' ? '<div id="scormmode" class="scorm-left">'.get_string('browsemode','scorm')."</div>\n" : ''; ?>
<?php echo $mode == 'review' ? '<div id="scormmode" class="scorm-left">'.get_string('reviewmode','scorm')."</div>\n" : ''; ?>
<div id="scormnav" class="scorm-right">
<?php
if ($scorm->hidetoc == SCORM_TOC_POPUP) {
    echo $result->tocmenu;
}
?>
</div> <!-- Scormnav -->
</div> <!-- Scormtop -->
<div id="toctree" class="generalbox">
<?php
                if (empty($scorm->popup) || $displaymode == 'popup') {
                    echo $result->toc;
                } else {
                    //Added incase javascript popups are blocked we don't provide a direct link to the pop-up as JS communication can fail - the user must disable their pop-up blocker.
                    $linkcourse = '<a href="'.$CFG->wwwroot.'/course/view.php?id='.$scorm->course.'">' . get_string('finishscormlinkname', 'scorm') . '</a>';
                    echo $OUTPUT->box(get_string('finishscorm', 'scorm', $linkcourse), 'generalbox', 'altfinishlink');
                }?>
</div> <!-- toctree -->
</div> <!-- tocbox -->
<noscript>
<div id="noscript">
<?php print_string('noscriptnoscorm','scorm'); // No Martin(i), No Party ;-) ?>

                    </div>
                </noscript>
<?php
    if ($result->prerequisites) {
        if ($scorm->popup != 0 && $displaymode !=='popup') {
            // Clean the name for the window as IE is fussy
            $name = preg_replace("/[^A-Za-z0-9]/", "", $scorm->name);
            if (!$name) {
                $name = 'DefaultPlayerWindow';
            }
            $name = 'scorm_'.$name;

            echo html_writer::script('', $CFG->wwwroot.'/mod/scorm/player.js');
            $url = new moodle_url($PAGE->url, array('scoid' => $sco->id, 'display' => 'popup'));
            echo html_writer::script(
            js_writer::function_call('scorm_openpopup', Array($url->out(false),
                                                       $name, $scorm->options,
                                                       $scorm->width, $scorm->height)));
            ?>
<noscript>
<!--[if IE]>
<iframe id="main" class="scoframe" name="main" src="loadSCO.php?id=<?php echo $cm->id.$scoidstr.$modestr; ?>"></iframe>
<![endif]-->
<!--[if !IE]>
<object id="main" class="scoframe" type="text/html" data="loadSCO.php?id=<?php echo $cm->id.$scoidstr.$modestr; ?>"></object>
<![endif]-->
</noscript>
<?php
        }
    } else {
        echo $OUTPUT->box(get_string('noprerequisites','scorm'));
    }
?>
</div> <!-- SCORM page -->
<?php
// NEW IMS TOC
if (empty($scorm->popup) || $displaymode == 'popup') {
    if (!isset($result->toctitle)) {
        $result->toctitle = get_string('toc', 'scorm');
    }
    $PAGE->requires->js_init_call('M.mod_scorm.init', array($scorm->hidenav, $scorm->hidetoc, $result->toctitle, $name, $sco->id));
}
if (!empty($forcejs)) {
    echo $OUTPUT->box(get_string("forcejavascriptmessage", "scorm"), "generalbox boxaligncenter forcejavascriptmessage");
}
echo $OUTPUT->footer();
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