When a quiz is closing within the next 24 hours, a small countdown

is shown in the titlebar (drawn with javascript).

An alert is shown at ten minutes, and zero minutes.

This doesn't prevent students from doing anything, but it serves
as a reminder and just looks cool.  ;-)

lang/en/quiz.php

@@ -40,6 +40,9 @@ $string['choice'] = "Choice";
 $string['choices'] = "Available choices";
 $string['correctanswer'] = "Correct answer";
 $string['correctanswers'] = "Correct answers";
+$string['countdown'] = "Countdown";
+$string['countdownfinished'] = "The quiz is closing, you should submit your answers now.";
+$string['countdowntenminutes'] = "The quiz will be closing in ten minutes.";
 $string['createmultiple'] = "Create multiple questions";
 $string['createnewquestion'] = "Create new question";
 $string['custom'] = "Custom format";

mod/quiz/attempt.php

@@ -173,13 +173,20 @@
     }
 
     print_heading(get_string("attempt", "quiz", $numattempts));
-
     print_simple_box(text_to_html($quiz->intro), "CENTER");
 
 
+/// Add the javascript timer in the title bar if the closing time appears close
+
+    $secondsleft = $quiz->timeclose - time();
+    if ($secondsleft > 0 and $secondsleft < 24*3600) {  // less than a day remaining
+        include("jsclock.php");
+    }
+
+
 /// Print all the questions
 
-    echo "<BR>";
+    echo "<br />";
 
     if (! quiz_print_quiz_questions($quiz)) {
         print_continue("view.php?id=$cm->id");

mod/quiz/jsclock.php

@@ -0,0 +1,63 @@
+<script language="javascript">
+<!--
+/// This Javascript clock provides a little countdown in the title bar
+
+var timerID = null;
+var timerRunning = false;
+var secondsleft = <?php echo $secondsleft ?>;
+var titleafter  = '<?php echo $quiz->name ?>';
+var titlebefore = '<?php echo get_string("countdown", "quiz").": " ?>';
+var alertmessage  = '<?php print_string("countdownfinished", "quiz") ?>';
+var alertmessage10  = '<?php print_string("countdowntenminutes", "quiz") ?>';
+
+function stopclock() {
+    if (timerRunning) {
+        clearTimeout(timerID);
+        timerRunning = false;
+    }
+}
+
+function startclock() {
+    stopclock();
+    showtime();
+}
+
+function showtime() {
+
+    secondsleft = secondsleft - 1;
+
+    if (secondsleft == 600) {
+        alert(alertmessage10);
+    }
+
+    if (secondsleft == 0) {
+        stopclock();
+        document.title = titleafter;
+        return alert(alertmessage);
+
+    } else {
+        current = secondsleft;
+
+        var hours = Math.floor( current / 3600 );
+        current = current - (hours*3600);
+    
+        var minutes =   Math.floor( current / 60 );
+        current = current - (minutes*60);
+    
+        var seconds = current;
+    
+        var timeValue = "" + hours;
+        timeValue  += ((minutes < 10) ? ":0" : ":") + minutes;
+        timeValue  += ((seconds < 10) ? ":0" : ":") + seconds;
+    
+        document.title = titlebefore+timeValue+' '+titleafter;
+        timerID = setTimeout("showtime()",1000);
+        timerRunning = true;
+    }
+}
+
+document.onLoad = startclock();
+
+
+// -- End of JavaScript code -------------- -->
+</script>