mirror of
https://github.com/moodle/moodle.git
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333 lines
9.8 KiB
PHP
333 lines
9.8 KiB
PHP
<?PHP
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// $Id$
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/// This page prints a hotpot quiz
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require_once("../../config.php");
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require_once("lib.php");
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$id = optional_param("id"); // Course Module ID, or
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$hp = optional_param("hp"); // hotpot ID
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if ($id) {
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if (! $cm = get_record("course_modules", "id", $id)) {
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error("Course Module ID was incorrect");
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}
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if (! $course = get_record("course", "id", $cm->course)) {
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error("Course is misconfigured");
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}
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if (! $hotpot = get_record("hotpot", "id", $cm->instance)) {
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error("Course module is incorrect");
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}
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} else {
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if (! $hotpot = get_record("hotpot", "id", $hp)) {
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error("Course module is incorrect");
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}
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if (! $course = get_record("course", "id", $hotpot->course)) {
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error("Course is misconfigured");
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}
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if (! $cm = get_coursemodule_from_instance("hotpot", $hotpot->id, $course->id)) {
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error("Course Module ID was incorrect");
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}
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}
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// set nextpage (for error messages)
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$nextpage = "$CFG->wwwroot/course/view.php?id=$course->id";
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require_login($course->id);
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// header strings
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$title = strip_tags($course->shortname.': '.$hotpot->name);
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$heading = "$course->fullname";
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$target = empty($CFG->framename) ? '' : ' target="'.$CFG->framename.'"';
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$navigation = '<a'.$target.' href="'.$CFG->wwwroot.'/mod/hotpot/index.php?id='.$course->id.'">'.get_string("modulenameplural", "hotpot")."</a> -> $hotpot->name";
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if ($course->category) {
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$navigation = '<a'.$target.' href="'.$CFG->wwwroot.'/course/view.php?id='.$course->id.'">'.$course->shortname.'</a> -> '.$navigation;
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}
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$button = update_module_button($cm->id, $course->id, get_string("modulename", "hotpot").'" style="font-size:0.75em;');
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$loggedinas = '<span class="logininfo">'.user_login_string($course, $USER).'</span>';
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$time = time();
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if (!isteacher($course->id)) {
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// check this quiz is available to this student
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// error message, if quiz is unavailable
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$error = '';
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// check quiz is visible
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if (!$cm->visible) {
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$error = get_string("activityiscurrentlyhidden");
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// check network address
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} else if ($hotpot->subnet && !address_in_subnet($_SERVER['REMOTE_ADDR'], $hotpot->subnet)) {
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$error = get_string("subneterror", "quiz");
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// check number of attempts
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} else if ($hotpot->attempts && $hotpot->attempts <= count_records('hotpot_attempts', 'hotpot', $hotpot->id, 'userid', $USER->id)) {
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$error = get_string("nomoreattempts", "quiz");
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// get password
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} else if ($hotpot->password && empty($_POST['hppassword'])) {
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print_header($title, $heading, $navigation, "", "", true, $button, $loggedinas, false);
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print_heading($hotpot->name);
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$boxalign = 'center';
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$boxwidth = 500;
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if (trim(strip_tags($hotpot->summary))) {
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print_simple_box_start($boxalign, $boxwidth);
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print '<div align="center">'.format_text($hotpot->summary)."</div>\n";
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print_simple_box_end();
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print "<br />\n";
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}
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print '<form name="passwordform" method="post" action="view.php?id='.$cm->id.'">'."\n";
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print_simple_box_start($boxalign, $boxwidth);
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print '<div align="center">';
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print get_string('requirepasswordmessage', 'quiz').'<br /><br />';
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print '<b>'.get_string('password').':</b> ';
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print '<input name="hppassword" type="password" value=""> ';
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print '<input type="submit" value="'.get_string("ok").'"> ';
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print "</div>\n";
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print_simple_box_end();
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print "</form>\n";
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print_footer();
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exit;
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// check password
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} else if ($hotpot->password && strcmp($hotpot->password, $_POST['hppassword'])) {
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$error = get_string("passworderror", "quiz");
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$nextpage = "view.php?id=$cm->id";
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// check quiz is open
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} else if ($hotpot->timeopen && $hotpot->timeopen > $time) {
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$error = get_string("quiznotavailable", "quiz", userdate($hotpot->timeopen))."<BR>\n";
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// check quiz is not closed
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} else if ($hotpot->timeclose && $hotpot->timeclose < $time) {
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$error = get_string("quizclosed", "quiz", userdate($hotpot->timeclose))."<BR>\n";
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}
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if ($error) {
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print_header($title, $heading, $navigation, "", "", true, $button, $loggedinas, false);
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notice($error, $nextpage);
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//
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// script stops here, if quiz is unavailable to student
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//
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}
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}
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$available_msg = '';
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if (!empty($hotpot->timeclose) && $hotpot->timeclose > $time) {
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// quiz is available until 'timeclose'
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$available_msg = get_string("quizavailable", "quiz", userdate($hotpot->timeclose))."<BR>\n";
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}
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// open and parse the source file
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if(!$hp = new hotpot_xml_quiz($hotpot)) {
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error("Quiz is unavailable at the moment");
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}
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$frameset = isset($_GET['frameset']) ? $_GET['frameset'] : '';
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// if HTML is being requested ...
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if (empty($_GET['js']) && empty($_GET['css'])) {
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$n = $hotpot->navigation;
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if (($n!=HOTPOT_NAVIGATION_FRAME && $n!=HOTPOT_NAVIGATION_IFRAME) || $frameset=='main') {
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add_to_log($course->id, "hotpot", "view", "view.php?id=$cm->id", "$hotpot->id", "$cm->id");
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$attemptid = hotpot_add_attempt($hotpot->id);
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if (! is_numeric($attemptid)) {
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error('Could not insert attempt record: '.$db->ErrorMsg);
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}
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if ($n!=HOTPOT_NAVIGATION_BUTTONS) {
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$hp->remove_nav_buttons();
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}
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$hp->adjust_media_urls();
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$hp->insert_submission_form($attemptid);
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if ($n==HOTPOT_NAVIGATION_GIVEUP) {
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$hp->insert_giveup_form($attemptid);
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}
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}
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}
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// insert hot-potatoes.js
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$hp->insert_script(HOTPOT_JS);
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// extract <head> tag
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$head = '';
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$pattern = '|^(.*)<head([^>]*)>(.*?)</head>|is';
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if (preg_match($pattern, $hp->html, $matches)) {
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$head = $matches[3];
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}
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// extract <style> tags
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$styles = '';
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$pattern = '|<style([^>]*)>(.*?)</style>|is';
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if (preg_match_all($pattern, $head, $matches)) {
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$count = count($matches[0]);
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for ($i=0; $i<$count; $i++) {
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$styles .= $matches[0][$i]."\n";
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$head = str_replace($matches[0][$i], '', $head);
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}
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}
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// extract <script> tags
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$scripts = '';
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$pattern = '|<script([^>]*)>(.*?)</script>|is';
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if (preg_match_all($pattern, $head, $matches)) {
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$count = count($matches[0]);
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for ($i=0; $i<$count; $i++) {
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$scripts .= $matches[0][$i]."\n";
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$head = str_replace($matches[0][$i], '', $head);
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}
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}
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// extract <body> tags
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$body = '';
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$bodytags = '';
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$pattern = '|^(.*)<body([^>]*)>(.*?)</body>|is';
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if (preg_match($pattern, $hp->html, $matches)) {
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$bodytags = $matches[2];
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$body = $matches[3];
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// workaround to ensure javascript onload routine for quiz is always executed
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// $bodytags will only be inserted into the <body ...> tag
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// if it is included in the theme/$CFG->theme/header.html,
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// so some old or modified themes may not insert $bodytags
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if (preg_match('/onload=("|\')(.*?)(\\1)/i', $bodytags, $matches)) {
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$body .= ""
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.'<SCRIPT type="text/javascript">'."\n"
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."<!--\n"
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." var s = (typeof(window.onload)=='function') ? onload.toString() : '';\n"
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." if (s.indexOf('".$matches[2]."')<0) {\n"
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." if (s=='') {\n" // no previous onload
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." window.onload = new Function('".$matches[2]."');\n"
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." } else {\n"
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." window.onload_hotpot = onload;\n"
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." window.onload = new Function('window.onload_hotpot();' + '".$matches[2]."');\n"
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." }\n"
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." }\n"
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."//-->\n"
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."</SCRIPT>\n"
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;
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}
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}
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$footer = '</body></html>';
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// print the quiz to the browser
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if (isset($_GET['js'])) {
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print($scripts);
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exit;
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}
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if (isset($_GET['css'])) {
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print($styles);
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exit;
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}
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switch ($hotpot->navigation) {
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case HOTPOT_NAVIGATION_BAR:
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//update_module_button($cm->id, $course->id, $strmodulename.'" style="font-size:0.8em')
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print_header(
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$title, $heading, $navigation,
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"", $head.$styles.$scripts, true, $button,
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$loggedinas, false, $bodytags
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);
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if (!empty($available_msg)) {
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notify($available_msg);
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}
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print $body.$footer;
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break;
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case HOTPOT_NAVIGATION_FRAME:
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switch ($frameset) {
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case 'top':
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print_header(
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$title, $heading, $navigation,
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"", "", true, $button,
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$loggedinas
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);
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print $footer;
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break;
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case 'main';
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if (!empty($available_msg)) {
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$hp->insert_message('<!-- BeginTopNavButtons -->', $available_msg);
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}
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print $hp->html;
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break;
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default:
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print "<HTML>\n";
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print "<HEAD><TITLE>$title</TITLE></HEAD>\n";
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print "<FRAMESET rows=85,*>\n";
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print "<FRAME src=\"view.php?id=$cm->id&frameset=top\">\n";
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print "<FRAME src=\"view.php?id=$cm->id&frameset=main\">\n";
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print "</FRAMESET>\n";
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print "</HTML>\n";
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break;
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} // end switch $frameset
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break;
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case HOTPOT_NAVIGATION_IFRAME:
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switch ($frameset) {
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case 'main';
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print $hp->html;
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break;
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default:
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$iframe_id = 'hotpot_iframe';
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$bodytags = " onload=\"set_iframe_height('$iframe_id')\"";
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$iframe_js = '<SCRIPT src="iframe.js" type="text/javascript" language="javascript">'."\n";
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print_header(
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$title, $heading, $navigation,
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"", $head.$styles.$scripts.$iframe_js, true, $button,
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$loggedinas, false, $bodytags
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);
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if (!empty($available_msg)) {
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notify($available_msg);
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}
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print "<IFRAME id=\"$iframe_id\" src=\"view.php?id=$cm->id&frameset=main\" height=\"100%\" width=\"100%\">";
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print "<ILAYER name=\"$iframe_id\" src=\"view.php?id=$cm->id&frameset=main\" height=\"100%\" width=\"100%\">";
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print "</ILAYER>\n";
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print "</IFRAME>\n";
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print $footer;
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break;
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} // end switch $frameset
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break;
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default:
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// HOTPOT_NAVIGATION_BUTTONS
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// HOTPOT_NAVIGATION_GIVEUP
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// HOTPOT_NAVIGATION_NONE
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if (!empty($available_msg)) {
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$hp->insert_message('<!-- BeginTopNavButtons -->', $available_msg);
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}
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print($hp->html);
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}
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?>
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